CN111373200A - Air conditioner ceiling-mounted indoor unit - Google Patents

Abstract

In the present invention, two of the four blade modules facing each other form a first discharge pair, the remaining two form a second discharge pair, and the first discharge pair and the second discharge pair alternately supply indirect air and direct air, so that the interior of the room can be rapidly cooled.

Description

Air conditioner ceiling-mounted indoor unit

technical field

The present invention relates to a control method of a ceiling-type indoor unit of an air conditioner, and more particularly, to a control method of a ceiling-type indoor unit related to first, second, third, and fourth blade modules during indoor cooling.

Background technique

Generally speaking, an air conditioner consists of a compressor, a condenser, an evaporator, and an expander, and uses an air conditioning cycle to supply cold or hot air to a building or room.

The air conditioner is structurally divided into a split type in which the compressor is arranged outdoors, and an integrated type in which the compressor is made integrally.

In the split type, the indoor heat exchanger is installed in the indoor unit, the outdoor heat exchanger and the compressor are installed in the outdoor unit, and the two separate devices are connected by refrigerant piping.

The integrated type is that the indoor heat exchanger, the outdoor heat exchanger and the compressor are arranged in a casing. As the one-piece air conditioner, there are a window-mounted air conditioner in which the device is directly mounted on a window, and a duct type air conditioner in which the suction duct and the discharge duct are connected and installed inside and outside the room, and the like.

The split-type air conditioners are generally classified according to the installation form of the indoor unit.

Vertical air conditioners that install the indoor unit vertically in the indoor space are called vertical air conditioners, wall-mounted air conditioners that install the indoor unit on the indoor wall, and ceiling-type indoor units that install the indoor unit on the ceiling of the room.

Furthermore, as one type of split-type air conditioners, there is a system air conditioner capable of supplying air-conditioned air to a plurality of spaces.

In the case of system air conditioners, there are a type in which a plurality of indoor units are provided to air-condition the room, and a type in which air-conditioned air is supplied to each space through a duct.

The plurality of indoor units installed in the system air conditioner may be constituted by any type such as a vertical type, a wall-mounted type, or a ceiling type.

The ceiling-type indoor unit in the prior art includes: a casing, which is suspended from a ceiling wall for installation; and a front panel, which covers the bottom surface of the casing and is disposed on the same surface as the ceiling.

A suction port is arranged in the center of the front panel, a plurality of discharge ports are arranged outside the suction port, and a discharge blade is provided for each discharge port.

In the ceiling-type indoor unit of the related art, when the discharge blade is in the automatic swing mode, the discharge blade is repeatedly rotated. In addition, when the ceiling-type indoor unit is in the discharge vane fixing mode, the discharge vane is kept stopped at a specific position.

Therefore, in the conventional ceiling-type indoor unit, when cooling the room, since it simply controls the discharge vanes, there is a problem that it is difficult to meet the needs of indoor personnel.

prior art literature

Patent Literature

Korea authorized invention patent 10-0679838B1

SUMMARY OF THE INVENTION

problem to be solved

An object of the present invention is to provide a control method of a ceiling-type indoor unit, which can rapidly cool a room by controlling four vane modules individually.

The object of the present invention is to provide a control method for a ceiling-type indoor unit, two of the four blade modules facing each other form a first discharge pair, the remaining two form a second discharge pair, and the first discharge pair and the second discharge pair The discharge pair discharges air at different angles from each other to cool the room.

The object of the present invention is to provide a control method for a ceiling-type indoor unit, two of the four blade modules facing each other form a first discharge pair, the remaining two form a second discharge pair, and the first discharge pair and the second discharge pair The discharge pair discharges air in different directions to cool the room.

The object of the present invention is to provide a control method of a ceiling-type indoor unit, two of the four blade modules facing each other form a first discharge pair, the remaining two form a second discharge pair, and the first discharge pair or the second discharge pair One of the spout pair provides indirect air and the other spout pair provides direct air to cool the room.

The object of the present invention is to provide a control method for a ceiling-type indoor unit, two of the four blade modules facing each other form a first discharge pair, the remaining two form a second discharge pair, and the first discharge pair and the second discharge pair The discharge pair supplies indirect air and direct air alternately to cool the room.

The objects of the present invention are not limited to the objects mentioned above, and those skilled in the art can clearly understand other objects mentioned from the following description.

technical solutions to problems

In the present invention, when the room is refrigerated, two of the four blade modules facing each other form a first discharge pair, and the remaining two form a second discharge pair, and the first discharge pair and the second discharge pair can be at different angles to each other Breathe out the air.

In the present invention, when the room is refrigerated, two of the four blade modules facing each other form a first discharge pair, and the remaining two form a second discharge pair, and the first discharge pair and the second discharge pair can be directed in different directions from each other. Breathe out the air.

In the present invention, when the room is refrigerated, two of the four blade modules facing each other form a first discharge pair, the other two form a second discharge pair, and one of the first discharge pair or the second discharge pair forms a discharge pair. Indirect wind can be provided and the other spit pair provides direct wind.

When the present invention cools the room, two of the four blade modules facing each other form a first discharge pair, and the other two form a second discharge pair, and the first discharge pair and the second discharge pair can alternately provide indirect wind and direct wind.

The present invention provides a control method for a ceiling-type indoor unit. The ceiling-type indoor unit includes a casing, which is suspended from an indoor ceiling for installation, a suction port is formed on the bottom surface of the casing, and a suction port is formed on the edge of the suction port. A first discharge port, a second discharge port, a third discharge port, and a fourth discharge port; the first vane module is disposed at the first discharge port and is disposed in the twelve o'clock direction with the suction port as a reference, and constitutes a first blade module. One of the discharge pair discharges air in the first discharge direction; the second vane module is disposed at the second discharge port and is disposed in the three o'clock direction with the suction port as a reference to constitute one of the second discharge pair , spit out air in the second ejection direction; the third vane module is arranged in the third ejection port, and is arranged in the six o'clock direction with the suction port as a reference, constitutes the other one of the first ejection pair, and ejects toward the third and a fourth vane module, disposed in the fourth discharge port, disposed in the nine o'clock direction with the suction port as a reference, constituting the other one of the second discharge pair, and discharging air in the fourth discharge direction,

Each of the blade modules includes: a module body disposed on the casing side, at least a part of the module body is exposed to the spout; a blade motor assembled on the module body for providing driving force; a drive coupling , assembled with the module body in a relatively rotatable manner, combined with the vane motor, and rotated by the driving force of the vane motor, including a first drive coupling body and a second drive that form a prescribed angle a coupling main body; a first blade coupling located on the front side of the drive coupling and assembled with the module body in a relatively rotatable manner; a second blade coupling with the second driving coupling The main body is assembled so as to be relatively rotatable; the first vane is arranged at the discharge port, and is disposed in front of the discharge direction of the air discharged from the discharge port, and is connected with the first drive link body and the first vane. The couplings are assembled so as to be relatively rotatable, respectively; and the second vanes are arranged at the spout, and are assembled to the module body in a relatively rotatable manner by using the second vane shaft, and are relatively rotatable with the second vane coupling. assembled in a rotating manner,

The first blade module, the second blade module, the third blade module, and the fourth blade module are set as one of the discharge steps P1 to P6, and each of the first blade modules is set on a horizontal basis. The inclination of a blade satisfies "0 degrees < the first blade inclination of the discharge step P1 < the first blade inclination of the discharge step P2 < the first blade inclination of the discharge step P3 < the first blade inclination of the discharge step P4 Blade inclination < first blade inclination of discharge step P5 < first blade inclination of discharge step P6 < 90 degrees", with the horizontal as a reference, the inclination of each of the second blades satisfies "0 < discharge step The second blade inclination of the step P1 < the second blade inclination of the discharge step P2 < the second blade inclination of the discharge step P3 < the second blade inclination of the discharge step P4 < the second blade of the discharge step P5 Inclination < the second blade inclination of the discharge step P6 < 90 degrees", in each of the discharge steps, the inclination of the second blade is always set larger than the inclination of the first blade,

The method includes: step S10, turning on (ON) a dynamic cooling mode; and a first dynamic cooling step S40, in the case of satisfying the step S10, making the first discharge pair operate at the discharge step P2, and making all the The second discharge pair is operated with strong cooling discharge steps; step S50, judging whether the first dynamic cooling step S40 exceeds the first dynamic time; the first automatic swing step S60, in the case of satisfying the step S50, make The first discharge pair and the second discharge pair operate at the same time, and the first discharge pair and the second discharge pair are reciprocated in a predetermined interval; step S70, it is determined whether the first automatic swing step S60 exceeds The first automatic time; the second dynamic cooling step S80, in the case that the step S70 is satisfied, the first discharge pair is operated at a strong cooling discharge step, and the second discharge pair is operated at a discharge step P2 operation; step S90, judging whether the second dynamic cooling step S80 exceeds the second dynamic time; step S120, after the step S90, judging whether the dynamic cooling mode is turned off (OFF); and satisfying the step S120 In the case of , the step of the dynamic cooling mode is ended.

In the discharge step P2, the first blade can form an inclination between 16 degrees and 29 degrees, and the second blade can form an inclination between 57 degrees and 67 degrees. In the step, the first vane forms an inclination of between 35 degrees and 44 degrees, and the second vane forms an inclination of approximately 70 degrees to 72 degrees.

When the discharge step P1 is provided, the rear end of the second blade may be positioned above the discharge port, and the front end of the second blade may be positioned above the discharge port. In the lower position, the rear end of the first blade is located lower than the front end of the second blade, and the front end of the first blade is located lower than the first blade. The end of the rear side is lower.

In the discharge step P1, the upper side surface of the second vane may be located at a higher position than the upper side surface of the first vane.

When the discharge step P2 is provided, the end on the rear side of the first vane may be positioned higher than the end on the front side of the second vane.

When the discharge step P6 is provided, the rear end of the second blade may be positioned above the discharge port, and the front end of the second blade may be positioned above the discharge port. In the lower position, the rear end of the first vane is located higher than the front end of the second vane, and is located higher than the discharge port, and the first vane is located at a position higher than the discharge port. The end on the front side is located lower than the end on the front side of the second blade.

The drive coupling may include: a core body; a core coupling shaft, disposed on the core body, rotatably coupled to the module body, protruding toward the blade motor, and connected to the blade The motor is combined; a first drive link body extends from the core body; a first drive link shaft, disposed on the first drive link body, protrudes toward the first blade body, and is connected to the first drive link body. a first blade is rotatably combined; a second drive coupling body extending from the core body forming a prescribed angle E with the first drive coupling body; and a second drive coupling shaft, is arranged on the main body of the second drive link, protrudes in the same direction as the shaft of the first drive link, and is rotatably combined with the second blade link,

The first blade coupling member includes: a first blade coupling member main body; a 1-1 blade coupling member shaft, which is arranged on one side of the first blade coupling member main body, assembled with the first blade, and is connected with the first blade coupling member. the first blade performs relative rotation; and the 1-2 blade coupling shaft is arranged on the other side of the first blade coupling main body, is assembled with the module main body, and relatively rotates with the module main body,

The second blade coupling includes: a second blade coupling main body; a 2-1 blade coupling shaft, which is arranged on one side of the second blade coupling main body, is assembled with the second blade, and is connected to the second blade coupling. the second blade performs relative rotation; and a 2-2 blade coupling shaft portion is disposed on the other side of the second blade coupling body, assembled with the drive coupling, and connected with the drive coupling relative rotation,

When the strong cooling discharge step is provided, a virtual straight line DD' connecting the core coupling shaft and the first driving coupling shaft and connecting the first driving coupling shaft and the first driving coupling shaft The included angle formed by the imaginary straight line BB' connecting the shafts of the 1-1 blade links is configured to be an obtuse angle exceeding 180 degrees.

When one of the discharge steps P2 to P5 is provided, the end on the rear side of the first blade may be located at a higher position than the end on the front side of the second blade, and may be located at the same position as the second blade. -1 Blade coupling shaft at the same or lower position.

When one of the ejection steps P1 to P3 is provided, for a virtual straight line D-D' connecting the core coupling shaft and the first drive coupling shaft, clockwise In the direction, the included angle formed by the core coupling shaft, the first driving coupling shaft and the 1-1 blade coupling shaft may be formed as an acute angle.

In the spouting step P1, the vane motor can rotate at a rotation angle of P1, with the rotation of the vane motor, the first vane forms the first vane P1 inclination, and the second vane forms the second vane P1 inclination,

In the discharge step P2, the vane motor rotates at a larger P2 rotation angle than the P1 rotation angle, and with the rotation of the vane motor, the first vane forms a first vane P2 inclination, The second blade forms a second blade P2 inclination,

In the discharge step P3, the vane motor rotates at a larger rotation angle P3 than the P2 rotation angle, and with the rotation of the vane motor, the first vane forms a first vane P3 inclination, The second blade forms a second blade P3 inclination,

In the discharge step P4, the vane motor rotates at a larger rotation angle P4 than the P3 rotation angle, and with the rotation of the vane motor, the first vane forms a first vane P4 inclination, The second blade forms the second blade P4 inclination,

In the discharge step P5, the vane motor rotates at a larger rotation angle P5 than the P4 rotation angle, and with the rotation of the vane motor, the first vane forms the first vane P5 inclination, so The second blade forms the second blade P5 inclination,

In the discharge step P6, the vane motor rotates at a larger rotation angle P6 than the P5 rotation angle, and with the rotation of the vane motor, the first vane forms the first vane P6 inclination, The second blade forms the second blade P6 inclination,

The inclination of the first blade P1 is set to 16 degrees or more, and the inclination of the first blade P6 is set to be 57 degrees or less.

The P1 rotation angle may be set to 78 degrees or more, and the P6 rotation angle may be set to 110 degrees or less.

In the strong heating discharge step, the first blade may form an inclination of 35 degrees to 44 degrees, and the second blade may form an inclination of approximately 70 degrees to 72 degrees.

After the step S10, it may further include: reset the automatic swing step S20, make the first discharge pair and the second discharge pair operate at the same time, and make the first discharge pair and the second discharge pair Perform reciprocating motion in a predetermined interval; and step S30, determine whether the reset automatic swing step S20 exceeds the reset automatic time, and if the step S30 is satisfied, execute the first dynamic cooling step S40.

The reset automatic time may be set longer than the first automatic time.

When the step S90 is satisfied, the method may further include: a second automatic swing step S100, in which the first discharge pair and the second discharge pair are operated simultaneously, and the first discharge pair and the first discharge pair are operated at the same time. The second discharge pair reciprocates in a predetermined interval; and in step S110, it is determined whether the second automatic swing step S100 exceeds the second automatic time, and if the step S110 is satisfied, the step S120 is executed.

The first automatic time and the second automatic time can be set identically.

If the step S50 is not satisfied, the first dynamic cooling step S40 may be returned, and if the step S90 is not satisfied, the second dynamic cooling step S80 may be returned.

The first dynamic time and the second dynamic time may be set identically.

After the step S10, it may further include: reset the automatic swing step S20, make the first discharge pair and the second discharge pair operate at the same time, and make the first discharge pair and the second discharge pair Perform reciprocating motion in a predetermined interval; and step S30, determine whether the reset automatic swing step S20 exceeds the reset automatic time, and if the step S30 is satisfied, execute the first dynamic cooling step S40,

When the step S90 is satisfied, the method further includes: a second automatic swing step S100, in which the first discharge pair and the second discharge pair are operated simultaneously, and the first discharge pair and the second discharge pair are operated at the same time. The discharge pair reciprocates in a predetermined interval; and in step S110, it is determined whether the second automatic swing step S100 exceeds the second automatic time, and if the step S110 is satisfied, the step S120 is executed.

The reset automatic time may be set longer than the first automatic time, the first automatic time and the second automatic time are set identically, the first dynamic time and the second dynamic time The time is set the same.

The present invention provides a control method for a ceiling-type indoor unit. The ceiling-type indoor unit includes a casing, which is suspended from an indoor ceiling for installation, a suction port is formed on the bottom surface of the casing, and a suction port is formed on the edge of the suction port. A first discharge port, a second discharge port, a third discharge port, and a fourth discharge port; the first vane module is disposed at the first discharge port and is disposed in the twelve o'clock direction with the suction port as a reference, and constitutes a first blade module. One of the discharge pair discharges air in the first discharge direction; the second vane module is disposed at the second discharge port and is disposed in the three o'clock direction with the suction port as a reference to constitute one of the second discharge pair , spit out air in the second ejection direction; the third vane module is arranged in the third ejection port, and is arranged in the six o'clock direction with the suction port as a reference, constitutes the other one of the first ejection pair, and ejects toward the third and a fourth vane module, disposed in the fourth discharge port, disposed in the nine o'clock direction with the suction port as a reference, constituting the other one of the second discharge pair, and discharging air in the fourth discharge direction,

Each of the blade modules includes: a module body disposed on the casing side, at least a part of the module body is exposed to the spout; a blade motor assembled on the module body for providing driving force; a drive coupling , assembled with the module body in a relatively rotatable manner, combined with the vane motor, and rotated by the driving force of the vane motor, including a first drive coupling body and a second drive that form a prescribed angle a coupling main body; a first blade coupling located on the front side of the drive coupling and assembled with the module body in a relatively rotatable manner; a second blade coupling with the second driving coupling The main body is assembled so as to be relatively rotatable; the first vane is arranged at the discharge port, and is disposed in front of the discharge direction of the air discharged from the discharge port, and is connected with the first drive link body and the first vane. The couplings are assembled so as to be relatively rotatable, respectively; and the second vanes are arranged at the spout, and are assembled to the module body in a relatively rotatable manner by using the second vane shaft, and are relatively rotatable with the second vane coupling. assembled in a rotating manner,

The first blade module, the second blade module, the third blade module, and the fourth blade module are set as one of the discharge steps P1 to P6, and each of the first blade modules is set on a horizontal basis. The inclination of a blade satisfies "0 degrees < the first blade inclination of the discharge step P1 < the first blade inclination of the discharge step P2 < the first blade inclination of the discharge step P3 < the first blade inclination of the discharge step P4 Blade inclination < first blade inclination of discharge step P5 < first blade inclination of discharge step P6 < 90 degrees", with the horizontal as a reference, the inclination of each of the second blades satisfies "0 < discharge step The second blade inclination of the step P1 < the second blade inclination of the discharge step P2 < the second blade inclination of the discharge step P3 < the second blade inclination of the discharge step P4 < the second blade of the discharge step P5 Inclination < the second blade inclination of the discharge step P6 < 90 degrees", in each of the discharge steps, the inclination of the second blade is always set larger than the inclination of the first blade,

The method includes: step S10, turning on (ON) a dynamic cooling mode; a first dynamic cooling step S40, after the step S10, making the first discharge pair operate at a discharge step P2, and making the second discharge pair operate at a discharge step P2. The discharge pair is operated in steps of strong cooling discharge; step S50, judging whether the first dynamic cooling step S40 exceeds the first dynamic time; the second dynamic cooling step S80, in the case of satisfying the step S50, making the first dynamic cooling step S80. The first discharge pair is operated with the strong cooling discharge step, and the second discharge pair is operated with the discharge step P2; step S90, it is judged whether the second dynamic cooling step S80 exceeds the second dynamic time; step S120, when satisfying the In the case of the step S90, it is determined whether the dynamic cooling mode is turned off (OFF); and if the step S120 is satisfied, the step of the dynamic cooling mode is ended, and the strong cooling discharges the step of the step. The inclination of the first blade is formed between 35 degrees and 57 degrees.

Invention effect

The ceiling-type indoor unit of the air conditioner of the present invention has one or more of the following effects.

First, in the present invention, since two of the four blade modules facing each other form a first discharge pair, the remaining two form a second discharge pair, and the first discharge pair and the second discharge pair alternately provide indirect air. And direct wind, can quickly cool the room.

Second, in the present invention, since the first discharge pair and the second discharge pair discharge air at different angles from each other, it is possible to minimize the dead space area that the discharged air cannot reach.

Third, in the present invention, since the first discharge pair and the second discharge pair discharge air in different directions from each other, it is possible to minimize a dead space area that the discharged air cannot reach.

Fourth, in the present invention, since one of the first discharge pair or the second discharge pair provides indirect air, and the other discharge pair provides direct air, it is possible to simultaneously supply discharge to a long distance and a short distance based on the indoor unit. Air.

Fifth, in the present invention, since the reset automatic swing step S20 for reciprocating the first discharge pair and the second discharge pair in a predetermined section is arranged before the dynamic cooling step, the temperature deviation of indoor air can be minimized.

Sixth, in the present invention, since the operation time of the first dynamic cooling step S40 and the second dynamic cooling step S80 are set to be the same, the temperature deviation around the indoor unit can be minimized, and the Only one side direction is cooled more.

Seventh, in the present invention, a dynamic cooling mode is provided for places where external access is frequent and the temperature needs to be lowered rapidly, and accordingly, comfort is provided to users who go out after a short stay.

Eighth, in the present invention, in the dynamic cooling mode, since the indirect air and the direct air are alternately discharged from the first discharge pair and the second discharge pair, the cooled discharge air can be directed to different heights and distances from each other. Spit out.

Description of drawings

FIG. 1 is a perspective view showing an air conditioner indoor unit according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of FIG. 1 .

FIG. 3 is an exploded perspective view showing the front panel of FIG. 1 .

FIG. 4 is a perspective view showing the top of the front panel of FIG. 1 .

FIG. 5 is a perspective view of the blade module shown in FIG. 3 .

FIG. 6 is a perspective view viewed from another direction of FIG. 5 .

FIG. 7 is a perspective view of the blade module viewed from the upper side of FIG. 5 .

FIG. 8 is a front view of the blade module shown in FIG. 3 .

FIG. 9 is a rear view of the blade module shown in FIG. 3 .

FIG. 10 is a plan view of the blade module shown in FIG. 3 .

FIG. 11 is a perspective view showing an operation structure of the blade module shown in FIG. 5 .

FIG. 12 is a front view of the drive coupling shown in FIG. 11 .

FIG. 13 is a front view of the first blade coupling shown in FIG. 11 .

FIG. 14 is a front view of the second blade coupling shown in FIG. 11 .

FIG. 15 is a bottom view of the front panel in a state in which the suction grille is separated in FIG. 1 .

FIG. 16 is a side cross-sectional view of the blade module shown in FIG. 2 .

FIG. 17 is a diagram illustrating an example of the discharge step P1 of the first embodiment of the present invention.

FIG. 18 is an illustration of the discharge step P2 of the first embodiment of the present invention.

FIG. 19 is an illustration of the discharge step P3 of the first embodiment of the present invention.

FIG. 20 is an illustration of the discharge step P4 of the first embodiment of the present invention.

FIG. 21 is a diagram illustrating an example of the discharge step P5 of the first embodiment of the present invention.

FIG. 22 is a diagram illustrating an example of the discharge step P6 of the first embodiment of the present invention.

23 is a flowchart showing a control method during cooling according to the first embodiment of the present invention.

24 is a flowchart showing a control method during cooling according to the second embodiment of the present invention.

25 is a flowchart showing a control method during cooling according to the third embodiment of the present invention.

26 is a flowchart showing a control method during cooling according to the fourth embodiment of the present invention.

27 is a flowchart showing a control method during cooling according to the fifth embodiment of the present invention.

Detailed ways

The advantages and features of the present invention and the method for realizing the same can be more clearly understood by referring to the accompanying drawings and the embodiments described in detail later. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various forms. The present embodiment is only for the purpose of more complete disclosure of the present invention, so as to be more comprehensible to those of ordinary skill in the technical field to which the present invention belongs. The scope of the present invention is fully indicated, and the present invention is defined only by the scope of the claims. Throughout the specification, the same reference numerals denote the same structural elements.

The present invention will be specifically described below with reference to the accompanying drawings.

FIG. 1 is a perspective view showing an air conditioner indoor unit according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of FIG. 1 . FIG. 3 is an exploded perspective view showing the front panel of FIG. 1 . FIG. 4 is a perspective view showing the top of the front panel of FIG. 1 . FIG. 5 is a perspective view of the blade module shown in FIG. 3 . FIG. 6 is a perspective view viewed from another direction of FIG. 5 . FIG. 7 is a perspective view of the blade module viewed from the upper side of FIG. 5 . FIG. 8 is a front view of the blade module shown in FIG. 3 . FIG. 9 is a rear view of the blade module shown in FIG. 3 . FIG. 10 is a plan view of the blade module shown in FIG. 3 . FIG. 11 is a perspective view showing an operation structure of the blade module shown in FIG. 5 . FIG. 12 is a front view of the drive coupling shown in FIG. 11 . FIG. 13 is a front view of the first blade coupling shown in FIG. 11 . FIG. 14 is a front view of the second blade coupling shown in FIG. 11 . FIG. 15 is a bottom view of the front panel in a state in which the suction grille is separated in FIG. 1 . FIG. 16 is a side cross-sectional view of the blade module shown in FIG. 2 . FIG. 17 is a diagram illustrating an example of the discharge step P1 of the first embodiment of the present invention. FIG. 18 is an illustration of the discharge step P2 of the first embodiment of the present invention. FIG. 19 is an illustration of the discharge step P3 of the first embodiment of the present invention. FIG. 20 is an illustration of the discharge step P4 of the first embodiment of the present invention. FIG. 21 is a diagram illustrating an example of the discharge step P5 of the first embodiment of the present invention. FIG. 22 is a diagram illustrating an example of the discharge step P6 of the first embodiment of the present invention. 23 is a flowchart showing a control method during cooling according to the first embodiment of the present invention.

<Configuration of indoor unit>

The indoor unit of the air conditioner in this embodiment includes: a casing 100 formed with a suction port 101 and a discharge port 102; an indoor heat exchanger 130 arranged inside the casing 100; an indoor fan 140 arranged inside the casing 100 to make Air flows through the suction port 101 and the discharge port 102 .

<The structure of the casing>

In this embodiment, the housing 100 includes a housing shell 110 and a front panel 300 . The outer casing 100 is installed by being suspended from a ceiling in the room by a hanger (not shown), and the lower side thereof is formed with an opening. The front panel 300 covers the open surface of the outer casing 110 and is disposed toward the indoor floor. The front panel 300 is exposed indoors, and the suction port 101 and the discharge port 102 are formed.

The casing 100 can be implemented in various ways according to the manufacturing form, and the structure of the casing 100 does not limit the technical idea of the present invention.

The suction port 101 is disposed in the center of the front panel 300 , and the discharge port 102 is disposed outside the suction port 101 . The number of the suction ports 101 or the number of the discharge ports 102 is irrelevant to the technical idea of the present invention. In this embodiment, one suction port 101 is formed, and a plurality of the discharge ports 102 are arranged.

In this embodiment, the suction port 101 is formed in a quadrangular shape when viewed from the bottom, and four discharge ports 102 are arranged at predetermined intervals from each edge of the suction port 101 .

<Constitution of indoor heat exchanger>

The indoor heat exchanger 130 is arranged between the suction port 101 and the discharge port 102, and the indoor heat exchanger 130 divides the inside of the casing 100 into an inner side and an outer side. The indoor heat exchanger 130 is arranged vertically in this embodiment.

An indoor blower fan 140 is arranged inside the indoor heat exchanger 130 .

When the indoor heat exchanger is viewed from top or bottom, its overall shape is formed as a "mouth", and a part of its section can be separated.

The indoor heat exchanger 130 is arranged so that the air discharged from the indoor ventilation fan 140 enters vertically.

A drain pan 132 is provided inside the housing 100 , and the indoor heat exchanger 130 is placed on the drain pan 132 . The condensed water generated from the indoor heat exchanger 130 may be stored after flowing to the drain pan 132 . A drain pump (not shown) for draining the collected condensed water to the outside is arranged in the drain pan 132 .

The drain pan 132 may be formed with a directional inclined surface, so that the condensed water flowing down from the indoor heat exchanger 130 is collected to one side and stored.

<Constitution of indoor ventilation fan>

The indoor ventilation fan 140 is located inside the casing 100 and is arranged on the upper side of the suction port 101 . The indoor blower fan 140 uses a centrifugal blower that sucks air in the center and discharges the air in the circumferential direction.

The indoor fan 140 includes a bell mouth 142 , a fan 144 and a fan motor 146 .

The bell mouth 142 is arranged on the upper side of the suction grille 320 and on the lower side of the fan 144 . The bell mouth 142 guides the air passing through the intake grill 320 towards the fan 144 .

The fan motor 146 rotates the fan 144 . The fan motor 146 is fixed to the outer casing 110 . The fan motor 146 is arranged above the fan 144 . At least a portion of the fan motor 146 is located higher than the fan 144 .

The motor shaft of the fan motor 146 is disposed toward the lower side, and the fan 144 is coupled to the motor shaft.

The indoor heat exchanger 130 is arranged outside the edge of the fan 144 . The fan 144 and at least a part of the indoor heat exchanger 130 are arranged on the same horizontal line. In addition, at least a part of the bell mouth 142 is inserted into the inside of the fan 144 . In the up-down direction, at least a part of the bell mouth 142 overlaps with the fan 144 .

<Configuration of the flow path>

The indoor heat exchanger 130 is disposed inside the outer casing 110, and divides the inner space of the outer casing 110 into an inner side and an outer side.

The inner space surrounded by the indoor heat exchanger 130 is defined as the suction flow path 103 , and the outer space of the indoor heat exchanger 130 is defined as the discharge flow path 104 .

The indoor blower fan 140 is arranged in the suction flow path 103 . The discharge flow path 104 is between the outside of the indoor heat exchanger 130 and the side wall of the outer casing 110 .

When viewed from the top or bottom, the suction flow path 103 is the inside surrounded by the "port" of the indoor heat exchanger, and the discharge flow path 104 is the outside of the "port" of the indoor heat exchanger.

The suction flow path 103 communicates with the suction port 101 , and the discharge flow path 104 communicates with the discharge port 103 .

Air flows from the lower side of the suction flow path 103 to the upper side, and flows from the upper side of the discharge flow path 104 to the lower side. Taking the indoor heat exchanger 130 as a reference, the flow direction of the air will be reversed by 180 degrees.

The suction port 101 and the discharge port 102 are formed on the same surface of the front panel 300 .

The suction port 101 and the discharge port 102 are arranged so as to face the same direction. In this embodiment, the suction port 101 and the discharge port 102 are arranged so as to face the indoor floor.

When the front panel 300 is formed with buckling, the discharge port 102 may be formed to have a slight side surface inclination, but the discharge port 102 connected to the discharge flow path 104 is formed so as to face downward.

In the present invention, a vane module 200 for controlling the direction of the air discharged through the discharge port 102 is disposed.

<Configuration of the front panel>

The front panel 300 includes: a front main body 310, which is combined with the outer casing 110 and is formed with the suction port 101 and the discharge port 102; a suction grill 320 is formed with a plurality of grill holes 321 for covering the The suction port 101 ; the pre-filter 330 is assembled on the suction grill 320 in a separable manner; the vane module 200 is arranged on the front main body 310 for controlling the air flow direction of the discharge port 102 .

The suction grill 320 is detachably provided on the front main body 310 . The suction grill 320 can be raised and lowered from the front main body 310 in the vertical direction. The suction grill 320 covers the entire suction port 101 .

In this embodiment, the suction grille 320 is formed with a plurality of grille holes 321 in a lattice form. The grill hole 321 is communicated with the suction port 101 .

A pre-filter 330 is arranged on the upper side of the suction grill 320 . The pre-filter 330 filters the air drawn into the housing 100 . The pre-filter 330 is located on the upper side of the grille hole 321 and filters the air passing through the suction grille 320 .

The discharge port 102 is formed in the shape of a long slit along the edge of the suction port 101 . The blade module 200 is located on the spout 102 and combined with the front main body 310 .

In this embodiment, the blade module 200 may be separated to the lower side of the front body 310 . That is, the blade module 200 is arranged independently of the coupling structure of the front main body 310 , and can be separated from the front main body 310 independently. The structure related to this will be described in more detail later.

<Configuration of front main body>

The front main body 310 is coupled to the lower side of the outer casing 110, and is disposed in a direction facing the room. The front body 310 is installed on the ceiling of the room and exposed to the room.

The front main body 310 is combined with the outer casing 110 , and the outer casing 110 supports the load of the front main body 310 . The front main body 310 supports the load of the suction grill 320 and the pre-filter 330 .

The front main body 310 is formed in a quadrangular shape in plan view. The shape of the front body 310 can be formed in various ways.

The upper side of the front main body 310 is formed in a horizontal manner so as to be close to the ceiling, and the edge of the lower side of the front main body 310 may be slightly curved.

The suction port 101 is arranged in the center of the front main body 310 , and a plurality of discharge ports 102 are arranged outside the edge of the suction port 101 .

When viewed from above, the suction port 101 may be formed in a square shape, and the discharge port 102 may be formed in a rectangular shape. The discharge port 102 may be formed into a slit shape whose length is longer than its width.

The front main body 310 includes a front frame 312 , a side cover 314 , and a corner cover 316 .

The front frame 312 provides the load and rigidity of the front panel 300 and is fastened to the outer casing 110 . The intake port 101 and the four discharge ports 102 are formed in the front frame 312 .

In this embodiment, the front frame 312 includes a side frame 311 and a corner frame 313 .

The corner frames 313 are arranged at each corner of the front panel 300 . The side frame 311 is combined with the two corner frames 313 . The side frame 311 includes an inner frame 311a and an outer frame 311b.

The inner side frame 311a is arranged between the suction port 101 and the discharge port 102, and is used to couple the two corner frames 313 together. The outer frame 311b is arranged outside the discharge port 102 .

In this embodiment, four inner side frames 311a and four outer side frames 311b are provided.

The suction ports 101 are located inside the four inner side frames 311a. The discharge port 102 is formed by being surrounded by the two corner frames 313, the inner frame 311a, and the outer frame 311b.

In addition, the side cover 314 and the corner cover 316 are combined with the bottom surface of the front frame 312 . The side cover 314 and the corner cover 316 are exposed to the user, and the front frame 312 is not seen by the user.

The side cover 314 is disposed at the edge of the front frame 312 , and the corner cover 316 is disposed at the corner of the front frame 312 .

The side cover 314 is made of synthetic resin and fastened to the front frame 312 . Specifically, the side cover 314 is combined with the side frame 311 , and the corner cover 316 is combined with the corner frame 313 .

In this embodiment, there are four side covers 314 and four corner covers 316 respectively. The side cover 314 and the corner cover 316 are combined with the front frame 312 and connected as a combination. In the front panel 300, four side covers 314 and four corner covers 316 form an edge.

The side cover 314 is arranged on the lower side of the side frame 311 , and the corner cover 316 is arranged on the lower side of the corner frame 313 .

The four side covers 314 and the four corner covers 316 are assembled to form a quadrilateral frame. The connected four side covers 314 and the four corner covers 316 are defined as a front trim 350 .

The front trim 350 forms an outer border (351, outer border) and an inner border (352, inner border) of the trim.

When viewed from a top or bottom view, the outer boundary 351 of the decoration is formed as a quadrangle, and the overall shape of the inner boundary 352 of the decoration is also formed as a quadrangle. However, the corners of the inner boundary of the decorative element form a prescribed curvature.

The suction grill 320 and the four vane modules 200 are arranged inside the interior boundary 352 of the trim. In addition, the suction grill 320 and the four blade modules 200 are arranged in contact with the interior boundary 352 of the trim.

In this embodiment, there are four side covers 314 , and each side cover 314 is combined with the front frame 312 . The outer edge of the side cover 314 forms part of the trim outer boundary 351 and the inner edge forms part of the trim inner boundary 352 .

In particular, the inner edge of the side cover 314 forms the outer boundary of the spout 102 . The inner edge of the side cover 314 is defined as the side trim interior boundary 315 .

In this embodiment, there are four corner covers 316 , and each corner cover 316 is combined with the front frame 312 . The outer edge of the corner cover 316 forms part of the outer border 351 of the trim, and the inner edge forms part of the inner border 352 of the trim.

The inner edge of the corner cover 316 is defined as the inner border 317 of the corner trim.

The inner border 317 of the corner trim may be configured to be in contact with the suction grill 320 . In this embodiment, the inner edge of the corner cover 316 is arranged to face the suction grill 320, and is spaced at a predetermined interval to form a gap 317a.

Similarly, the inner boundary 315 of the side trim is spaced apart from the blade module 200 by a predetermined interval to form a gap 315 a, and is disposed so as to face the outer edge of the blade module 200 .

Thus, the inner boundary 352 of the trim is spaced apart from the outer edges of the four blade modules 200 and the suction grille 320 by a predetermined interval and forms a continuous gap.

The continuous gap formed by the four side trim inner border gaps 315a and the four corner trim inner border gaps 317a is defined as a front trim gap 350a.

The front trim gap 350 a is formed at the inner edge of the front trim 350 . Specifically, the front trim gap 350 a is formed by the outer edges of the blade module 200 and the suction grille 320 and the inner edge of the front trim 350 being separated.

When the vane module 200 is not in operation (when the indoor unit is stopped), the front trim clearance 350a causes the suction grill 320 and the vane module 200 to be regarded as a structure.

<Constitution of suction grille>

The suction grill 320 is located on the lower side of the front main body 310 . The suction grill 320 can be raised and lowered downward while being in close contact with the bottom surface of the front main body 310 .

The suction grill 320 includes a grill body 322 and a plurality of grill holes 321 penetrating the grill body 322 in the up-down direction.

The suction grill 320 includes: a grill main body 322, which is arranged on the lower side of the suction port 101, communicated with the suction port 101 through a plurality of grill holes 321, and is formed into a quadrilateral shape; the corners of the grille The portion 327 extends from the corner of the grid body 322 along the diagonal direction.

The bottom surface of the grill body 322 and the bottom surface of the first blade 210 may form a continuous surface. In addition, the bottom surface of the grill body 322 and the bottom surface of the corner cover 316 may form a continuous surface.

A plurality of grids 323 are arranged in a lattice form inside the grid body 322 . The grids 323 in the lattice form form grid holes 321 in the form of quadrilaterals. The part in which the said grille 323 and the grille hole 321 are formed is defined as a suction part.

The grill main body 322 includes: a suction part for dredging air; and a grill main body part 324 arranged so as to surround the suction part. The overall shape of the suction portion is formed in a quadrangle when viewed from a plan view or a bottom view.

Each corner of the suction part is arranged toward each corner of the front panel 300 , and more specifically, it is arranged toward the corner cover 316 .

The grill body 322 is formed in a quadrangular shape when viewed from the bottom.

The outer edge of the grill body portion 324 is arranged so as to face the discharge port 102 or the front trim 350 .

The outer edge of the grill body portion 324 includes: grille corner borders 326 arranged to face the corner cover 316 ; grille side borders 325 forming the spout 102 and facing all The side covers 314 are arranged so as to face each other.

The grille corner boundary 326 may be formed as a curvature centered on the inner side of the suction grille 320 , and the grille side boundary 325 may be formed as a curvature centered on the outer side of the suction grille 320 .

The grill body portion 324 further includes a grille corner portion 327 surrounded by the grille corner boundary 326 and the two grille side boundaries 325 . The grille corner portion 327 is formed to protrude from the grille main body portion 324 to the corner cover 316 side.

The grille corners 327 are arranged at each corner of the grille main body 322 . The grille corners 327 extend toward the corners of the front panel 300 .

In this embodiment, there are four corners 327 of the grille. For the convenience of description, the four grille corners 327 are defined as a first grille corner 327-1, a second grille corner 327-2, a third grille corner 327-3 and Fourth grille corner 327-4.

The grille side boundary 325 is formed in a concave shape from the outer side to the inner side.

The discharge port 102 is formed between the side cover 314 and the suction grill 320 . More specifically, a spout 102 is formed between the inner boundary 315 of the side trim of the side cover 314 and the side boundary 325 of the grille main body 322 . Each discharge port 102 is formed between the side trim inner boundary 315 and the grille side boundary 325 arranged in the four directions of the suction grill 320 .

In this embodiment, the length of the grille corner boundary 326 is formed the same as the length of the inner boundary 317 of the corner trim. That is, the width of the corner cover 316 and the width of the grille corner portion 327 are formed to be the same.

In addition, the inner width of the side cover 314 and the width of the grille side boundary 325 are formed to be the same.

The grid side boundaries 325 are distinguished in more detail as follows.

The grille side boundary 325 forms the inner boundary of the spout 102 . The inner border 315 of the side trim and the inner border 317 of the corner trim form the outer border of the spout 102 .

The grille side boundary 325 includes: a long straight section 325a, which extends along the length direction of the spout 102 and is formed as a straight line; a first curved section 325b, which is close to the long straight section 325a. One side is connected, and its center of curvature is formed on the outside of the suction grille 320; the second curved section 325c is connected with the other side of the long straight section 325a, and its center of curvature is formed on the The outside of the suction grille 320; the first short straight section 325d is connected with the first curved section 325b; the second short straight section 325e is connected with the second curved section 325c.

<Configuration of blade module>

The vane module 200 is provided in the discharge flow path 104 and controls the flow direction of the air discharged through the discharge port 102 .

The blade module 200 includes a module body 400 , a first blade 210 , a second blade 220 , a blade motor 230 , a driving coupling 240 , a first blade coupling 250 and a second blade coupling 260 .

The first blade 210 , the second blade 220 , the blade motor 230 , the drive coupling 240 , the first blade coupling 250 and the second blade coupling 260 are all disposed on the module body 400 . The module body 400 is integrally disposed on the front panel 300 . That is, the entire structural components of the blade module 200 are modular, and are disposed on the front panel 300 at one time.

Since the blade module 200 is modular, assembly time can be shortened and replacement is easy in the event of a failure.

In this embodiment, the vane motor 230 uses a stepping motor.

<Configuration of the module body>

The module body 400 may be composed of one body. In this embodiment, in order to minimize the installation space and minimize the manufacturing cost, it will be manufactured by being separated into two parts.

In this embodiment, the module body 400 is composed of a first module body 410 and a second module body 420 .

The first module body 410 and the second module body 420 are formed in a left-right symmetrical manner. In this embodiment, the common structure will be described by taking the first module body 410 as an example.

The first module body 410 and the second module body 420 are respectively fastened to the front body 310 . Specifically, the first module body 410 and the second module body 420 are disposed on each corner frame 313 .

In the horizontal direction, the first module body 410 is provided on the corner frame 313 arranged on one side of the outlet 102 , and the second module body 420 is arranged on the corner frame 313 arranged on the other side of the outlet 102 .

In the up-down direction, the first module main body 410 and the second module main body 420 are in close contact with the bottom surfaces of the corner frames 313 , and are respectively fastened by the fastening members 401 .

Accordingly, the first module body 410 and the second module body 420 are arranged on the lower side of the front body 310 . When the indoor unit is installed, the fastening direction of the first module main body 410 and the corner frame 313 is arranged from the lower side to the upper side, and the second module main body 420 and the corner frame 313 The tightening direction is also configured from the lower side toward the upper side.

With the structure as described above, the entire blade module 200 can be easily detached from the front main body 310 during maintenance.

The blade module 200 includes: a first module body 410 disposed on one side of the spout 102 , located on the lower side of the front body 310 , and capable of being separated from the front body 310 to the lower side. The second module body 420 is arranged on the other side of the spout 102, located on the lower side of the front body 310, and is assembled to the front body 310 in a manner that can be separated downward; One or more blades 210 and 220 are combined with the first module body 410 and the second module body 420 on one side and the other side respectively, and are opposite to the first module body 410 and the second module body 420 Rotation; the blade motor 230 is provided on at least one of the first module main body 410 or the second module main body 420, and is used to provide driving force to the blade; the first fastening hole 403-1 is arranged in the first module body 403-1. A module main body 410 is disposed facing downward and formed to penetrate the first module main body 410; the first fastening member 401-1 is fastened on the first fastening hole 403-1 through the first fastening hole 403-1. the front main body 310; the second fastening hole 403-2, which is arranged in the second module main body 420, is arranged to face the lower side, and is formed to penetrate through the second module main body 420; the second The fastening member 401-2 is fastened to the front main body through the second fastening hole 403-2.

In particular, since the first module main body 410 and the second module main body 420 are located on the lower side of the front main body 310 , in the state where the front main body 310 is installed in the housing case 110 , only the blade module can be 200 is separated from the front body 310 . This applies collectively to the blade module 200 population in all four locations.

When the module body 400 is separated from the front body 310 , the entire blade module 200 is separated from the lower side of the front body 310 .

The first module main body 410 includes: a module main body part 402 combined with the front main body 310 ; and a link mounting part 404 protruding upward from the module main body part 402 .

The module main body 402 is fastened to the front main body 310 by a fastening member 401 (not shown). Different from this embodiment, the module main body 402 can be combined with the front main body 310 by hook coupling or interference fit.

In this embodiment, in order to minimize vibration or noise caused by the first blade 210, the second blade 220, the blade motor 230, the drive coupling 240, the first blade coupling 250, and the second blade coupling 260, etc., The module body portion 402 is securely fastened to the front body 310 .

The fastening member 401 for fixing the module main body 402 is fastened from the lower side to the upper side, and can be separated from the upper side to the lower side.

A fastening hole 403 through which the fastening member 401 is inserted is formed in the module main body portion 402 .

For the convenience of description, when it is necessary to distinguish the fastening holes formed on the first module main body 410 from the fastening holes formed in the second module main body 420, the fastening holes arranged on the first module main body 410 It is called a first fastening hole 403-1, and the fastening hole arranged on the second module body 420 is called a second fastening hole 403-1.

In addition, when the fastening member 401 needs to be distinguished, the fastening member 401 provided on the first fastening hole 403-1 is defined as the first fastening member 401-1, and the second fastening hole 403-1 is defined as the first fastening member 401-1. The fastening member 401 provided on 1 is defined as a second fastening member 401-2.

The first fastening member 401 - 1 penetrates the first fastening hole and is fastened to the front main body 310 . The second fastening member 401 - 2 penetrates the second fastening hole and is fastened to the front main body 310 .

Before the module main body 400 is fastened and fixed, a module hook 405 for temporarily fixing the position of the module main body 400 is arranged.

The module hook 405 is combined with the front panel (300, specifically, the front main body 310). Specifically, the module hooks 405 and the front main body 310 are locked to each other.

A plurality of module hooks 405 may be arranged on one module body. In this embodiment, the module hooks are respectively disposed on the outer edge and the front edge of the module main body portion 402 . That is, the module hooks 405 are respectively arranged outside the first module main body 410 and the second module main body 420 , and each module hook 405 is symmetrical in the left-right direction.

Using the module hooks 405 of the first module body 410 and the module hooks 405 of the second module body 420 , the blade module 200 can be temporarily fixed to the frame body 310 .

Based on the fixing of the module hooks 405 on the combined structure, a slight loosening interval may be caused. The fastening member 401 firmly fixes the temporarily fixed module main body 400 to the front main body 310 .

Fastening holes 403 for arranging the fastening members 401 may be located between the module hooks 405 . The fastening holes 403 of the first module main body 410 and the fastening holes 403 of the second module main body 420 are arranged between the module hooks 405 on one side and the other side.

In this embodiment, the module hooks 405 and the fastening holes 403 are arranged in a row.

Even if the fastening member 401 is released, the blade module 200 can remain connected to the frame body 310 under the action of the module hook 405 .

When the blade module 200 needs to be separated due to repair or failure, even if the fastening member 401 is separated, the blade module 200 can maintain the state of being coupled to the front panel 300 . Therefore, when releasing the fastening member 401, the operator does not need to support the blade module 200 additionally.

The blade module 200 realizes the primary fixation by the module hook 405 and the secondary fixation by the fastening member 401 , so that the convenience of work during maintenance can be greatly improved.

The module main body portion 402 is arranged in a horizontal manner, and the link mounting portion 404 is arranged in a vertical manner. In particular, when viewed from the mounted state, the link mounting portion 404 protrudes upward from the module main body portion 402 .

The link mounting portion 404 of the first module body 410 and the link mounting portion 404 of the second module body 420 are arranged to face each other. The first blade 210 , the second blade 220 , the driving coupling 240 , and the first blade coupling 250 are disposed between the coupling mounting portion 404 of the first module body 410 and the coupling mounting portion 404 of the second module body 420 and the second blade coupling 260 . The vane motor 230 is disposed outside the link mounting portion 404 of the first module body 410 or outside the link mounting portion 404 of the second module body 420 .

The blade motor 230 may be provided on only one of the first module body 410 or the second module body 420 . In this embodiment, they are respectively disposed on the first module body 410 or the second module body 420 .

The first blade 210, the second blade 220, the drive coupling 240, the first blade coupling 250, and the second blade coupling 260 are combined between the first module body 410 and the second module body 420, so that the The blade module 200 is integrated.

In order to mount the vane motor 230 , a vane motor mount portion 406 protruding toward the outer side of the link mount portion 404 is provided. The vane motor 230 is fastened and fixed to the vane motor mounting portion 406 . The vane motor mounting portion 406 is formed in the shape of a protruding column, and the vane motor 230 is fixed to the vane motor mounting portion 406 . Under the action of the blade motor mounting portion 406 , the coupling member mounting portion 404 and the blade motor 230 are spaced apart at predetermined intervals.

A drive link joint 407 , a first blade link joint 408 , and a second blade joint 409 are arranged on the link mounting portion 404 , and the drive link 240 is assembled to the drive link joint 407 , and The drive link joint 407 provides a center of rotation to the drive link 240, the first blade link 250 is assembled at the first blade link joint 408, and the first blade link joint 408 provides a center of rotation to the first blade coupling 250, the second blade joint 409 is combined with the second blade 220, and the second blade joint 409 provides rotation to the second blade 220 center.

In the present embodiment, the driving coupling part 407 , the first blade coupling part 408 and the second blade coupling part 409 are formed in the form of holes. Different from the present embodiment, it can also be formed in the form of a convex column, and can be realized by various forms of providing a rotating shaft.

Moreover, the stopper 270 which restricts the rotation angle of the drive link 240 is arrange|positioned at the link attachment part 404. The stopper 270 is arranged so as to protrude toward the coupling mounting portion 404 on the opposite side.

In this embodiment, the stopper 270 interferes at a specific position when the driving coupling 240 rotates, and restricts the rotation of the driving coupling 240 . The stop 270 is located within the radius of rotation of the drive coupling 240 .

In this embodiment, the stopper 270 and the coupling element mounting portion 404 are made in one piece. In this embodiment, the stopper 270 provides an installation position of the driving coupling 240 , maintains a contact state when the driving coupling 240 rotates, and suppresses the vibration of the driving coupling 240 or Loosen interval.

In this embodiment, the stopper 270 is formed in an arc shape.

<Configuration of Drive Coupling>

The drive coupling 240 is directly connected to the blade motor 230 . The motor shaft (not shown) of the vane motor 230 is directly coupled to the driving coupling 240 , and the rotation amount of the driving coupling 240 is determined according to the rotation angle of the rotating shaft of the vane motor 230 .

The drive coupling 240 penetrates through the coupling mounting portion 404 and is assembled to the vane motor 230 . In this embodiment, the driving coupling 240 penetrates the driving coupling joint 407 .

The drive link 240 includes: a drive link main body 245; a first drive link shaft 241 disposed on the drive link body 245, rotatably combined with the first blade 210; a core link The coupling shaft 243 is disposed on the drive coupling body 245 and is rotatably coupled to the coupling mounting portion (404, specifically, the driving coupling coupling portion 407); the second driving coupling shaft 242, It is arranged on the main body 245 of the drive coupling and is rotatably combined with the second blade coupling 260 .

The drive coupling body 245 includes a first drive coupling body 246 , a second drive coupling body 247 and a core body 248 .

The core coupling shaft 243 is arranged at the core body 248 , the first drive coupling shaft 241 is arranged at the first drive coupling body 246 , and the second drive coupling body 247 is arranged where The core coupling shaft 243 is described.

The core body 248 connects the first drive coupling body 246 and the second drive coupling body 247 . The shapes of the first driving coupling body 246 and the second driving coupling body 247 are not particularly limited. However, in this embodiment, the first driving coupling body 246 and the second driving coupling body 247 are generally formed in a linear shape.

The first drive coupling body 246 is formed longer than the second drive coupling body 247 .

The core coupling shaft 243 is rotatably assembled with the coupling mounting portion 404 . The core coupling shaft 243 is assembled to the drive coupling joint portion 407 formed on the coupling mounting portion 404 . The core coupling shaft 243 can perform relative rotation in a state of being coupled with the driving coupling coupling portion 407 .

The first drive coupling shaft 241 is rotatably assembled with the first blade 210 . The second drive coupling shaft 242 is rotatably assembled with the second blade coupling 260 .

The first driving coupling shaft 241 and the second driving coupling shaft 242 protrude in the same direction. The core coupling shaft 243 protrudes in a direction opposite to the first driving coupling shaft 241 and the second driving coupling shaft 242 .

The first driving coupling body 246 and the second driving coupling body 247 form a predetermined included angle. The virtual straight line connecting the first drive link shaft 241 and the core link shaft 243 and the virtual straight line connecting the core link shaft 243 and the second drive link shaft 242 form a predetermined Angle E. The included angle E is formed to exceed 0 degrees and less than 180 degrees.

The first drive coupling shaft 241 provides a structure that enables the relative rotation of the drive coupling body 245 and the first blade 210 . In this embodiment, the first drive coupling shaft 241 and the drive coupling body 245 are formed in one piece. Different from this embodiment, the first drive coupling shaft 241 can be made in one piece with the first blade 210 or the engaging ribs 214 .

The core coupling shaft 243 provides a structure capable of relatively rotating the drive coupling body 245 and the module body (specifically, the coupling mounting portion 404 ). In this embodiment, the core coupling shaft 243 and the drive coupling body 245 are formed in one piece.

The second drive coupling shaft 242 provides a structure that enables relative rotation of the second blade coupling 260 and the driving coupling 240 . In this embodiment, the second drive coupling shaft 242 is formed in one piece with the drive coupling body 245 . Unlike this embodiment, the second drive coupling shaft 242 may be made in one piece with the second blade coupling 260 .

In this embodiment, the second drive coupling shaft 242 is disposed on the second drive coupling body 247 . The second drive link shaft 242 is arranged on the opposite side of the first drive link shaft 241 with the core link shaft 243 as a reference.

The virtual straight line connecting the first drive link shaft 241 and the core link shaft 243 and the virtual straight line connecting the core link shaft 243 and the second drive link shaft 242 form a predetermined Angle E. The included angle E is formed to exceed 0 degrees and less than 180 degrees.

<Configuration of the first blade coupling>

In this embodiment, the first blade coupling member 250 is formed of a sturdy material, and is formed in a straight shape. Different from the present embodiment, the first blade coupling member 250 may be formed as a curve.

The first blade coupling 250 includes: a first blade coupling main body 255; a 1-1 blade coupling shaft 251, which is arranged on the first blade coupling main body 255 and is assembled with the first blade 210, Rotate relative to the first blade 210; the 1-2 blade coupling shaft 252 is arranged on the first blade coupling body 255, and the module body (400, specifically, the coupling mounting portion 404) ) to assemble and rotate relative to the module body 400 .

The 1-1 blade coupling shaft 251 protrudes toward the first blade 210 side. The 1-1 blade coupling shaft 251 is assembled with the first blade 210 and can rotate relative to the first blade 210 .

The 1st-2nd blade coupling shaft 252 is assembled to the coupling mounting portion 404 of the module body 400 . Specifically, the 1-2 blade coupling shaft 252 is assembled to the first blade coupling joint part 408 and can rotate relative to the first blade coupling joint part 408 .

<Configuration of the second blade coupling>

In this embodiment, the second blade coupling member 260 is formed of a sturdy material, and is formed to extend long in a straight line. Different from the present embodiment, the first blade coupling member 250 may be formed as a curve.

The second blade coupling 260 includes: a second blade coupling main body 265; a 2-1 blade coupling shaft 261, which is arranged on the second blade coupling main body 265 and is assembled with the second blade 220, Relatively rotates with the second blade 220; the 2-2 blade coupling shaft portion 262 is arranged on the second blade coupling main body 265, and the driving coupling (240, specifically, the second driving The coupling shaft 242) is assembled to rotate relative to the drive coupling 240.

In the present embodiment, the 2-2 blade coupling shaft portion 262 is formed in the form of a hole passing through the second blade coupling main body 265 . Since the 2-2 blade coupling shaft portion 262 and the second driving coupling shaft 242 are opposed to each other, when one is formed in the form of a shaft, the other one is formed in the form of a hole providing a center of rotation. Therefore, unlike the present embodiment, the 2-2 blade coupling shaft portion may be formed in the form of a shaft, and the second drive coupling shaft may be formed in the form of a hole.

The above-mentioned structural substitutions can be applied to all structures capable of relative rotation in combination with the drive coupling, the first blade coupling, and the second blade coupling, and the corresponding deformable examples are: It will not be described in detail otherwise.

<Configuration of the blade>

For description, the direction in which the air is discharged is defined as the front, and the opposite direction is defined as the rear. In addition, the ceiling side is defined as the upper side, and the floor is defined as the lower side.

In this embodiment, the first vane 210 and the second vane 220 are arranged to control the flow direction of the air discharged from the discharge port 102 . According to each step of the vane motor 230, the relative arrangement and relative angle of the first vane 210 and the second vane 220 will be changed. In this embodiment, according to each step of the vane motor 230 , the first vane 210 and the second vane 220 form a pair and provide six discharge steps P1 , P2 , P3 , P4 , P5 , and P6 .

The discharge steps P1, P2, P3, P4, P5, and P6 are defined as a state in which the first vane 210 and the second vane 220 are fixed without moving. As an opposite concept, the present embodiment may provide moving steps. The moving step is defined as the combination of six discharge steps P1 , P2 , P3 , P4 , P5 , and P6 , and the air flow provided by operating the first vane 210 and the second vane 220 .

<Configuration of the first blade>

The first blade 210 is disposed between the link mounting portion 404 of the first module body 410 and the link mounting portion 404 of the second module body 420 .

When the indoor unit is not operating, the first blade 210 covers most of the discharge port 210 . Different from the present embodiment, the first vane 210 can be made to cover the whole of the discharge port 210 .

The first blade 210 is combined with the drive coupling 240 and the first blade coupling 250 .

The driving coupling member 240 and the first blade coupling member 250 are respectively disposed on one side and the other side of the first blade 210 .

The first blade 210 rotates relatively to the driving coupling member 240 and the first blade coupling member 250 respectively.

When it is necessary to distinguish the positions of the driving coupling 240 and the first blade coupling 250 , the driving coupling 240 combined with the first module body 410 is defined as the first driving coupling, and the driving coupling 240 combined with the first module body 410 is defined as the first driving coupling. The first blade coupling 250 is defined as a 1-1 blade coupling. The driving coupling 240 coupled to the second module body 420 is defined as a second driving coupling, and the first blade coupling 250 coupled to the second module body 420 is defined as a 1-2 blade coupling.

The first vane 210 includes: a first vane main body 212 extending long along the length direction of the spout 102; an engaging rib 214 protruding upward from the first vane main body 212, and the driving The coupling member 240 and the first blade coupling member 250 are combined with the joint ribs 214 .

The first blade body 212 may be formed as a slow curved surface.

The first vane body 212 controls the direction of the air discharged along the discharge flow path 104 . The expelled air may collide with the upper side or the lower side of the first blade body 212 to guide the flow direction of the air.

The flow direction of the discharged air and the longitudinal direction of the first blade body 212 are orthogonal to or intersect with each other.

The engaging rib 214 is a mounting structure for combining the driving coupling 240 and the first blade coupling 250 . The engaging ribs 214 are respectively disposed on one side and the other side of the first blade 210 .

The engaging ribs 214 are formed by protruding upward from the upper side of the first blade body 212 . The engaging rib 214 is formed along the flow direction of the ejected air, and minimizes the resistance with the ejected air. Therefore, the engaging ribs 214 are orthogonal to or intersect with the longitudinal direction of the first blade body 212 .

The joining rib 214 is formed so that the height of the air discharge direction side (front) is low, and the air intake direction side (rear) is high. In the present embodiment, the engaging ribs 214 are formed such that the height of the side where the driving coupling 240 is coupled is high, and the height of the side where the first blade coupling 250 is coupled is low.

The engaging rib 214 includes: a second engaging portion 217 rotatably combined with the driving link 240 ; a first engaging portion 216 rotatably combined with the first blade link 250 .

The engaging ribs 214 can be made in one piece with the first blade body 212 .

In this embodiment, the first engaging portion 216 and the second engaging portion 217 are formed in the form of holes and penetrate the engaging ribs 214 .

The first engaging portion 216 and the second engaging portion 217 are structured to be capable of shaft coupling or hinge coupling, and can be deformed into various forms.

When viewed from the front, the second engaging portion 217 is located at a higher position than the first engaging portion 216 .

The second engaging portion 217 is located more rearward than the first engaging portion 216 . The first drive coupling shaft 241 is assembled at the second joint portion 217 . The second engagement portion 217 and the first drive coupling shaft 241 are assembled in a relatively rotatable manner. In this embodiment, the first drive coupling shaft 241 is assembled in a manner of passing through the second joint portion 217 .

The 1-1 blade link shaft 251 is assembled to the first joint portion 216 .

The first engaging portion 216 and the 1-1 blade coupling shaft 251 are assembled in a relatively rotatable manner. In this embodiment, the 1-1 blade coupling shafts 251 are assembled with each other so as to penetrate the first joint portion 216 .

When viewed from a plan view, the driving coupling member 250 and the first blade coupling member 250 are disposed between the engaging rib 214 and the coupling member mounting portion 404 .

In the present embodiment, the interval between the first engaging portion 216 and the second engaging portion 217 is formed to be narrower than the interval between the core link shaft 243 and the 1-2 blade link shaft 252 .

<Configuration of the second blade>

The second vane 220 includes: a second vane main body 222, which is formed to extend along the length direction of the spout 102; an engaging rib 224 protrudes upward from the second vane main body 222, and is formed with the The second blade coupling member 260 is combined in a relatively rotatable manner; the second blade shaft 221 is formed on the second blade main body 222 and is combined with the coupling member mounting portion 404 in a rotatable manner.

The engaging rib 224 is a structure capable of shaft coupling or hinge coupling, and can be deformed into various forms. A hole formed in the second engaging rib 224 and coupled to the second blade coupling member 220 in a relatively rotatable manner is defined as a third engaging portion 226 .

In this embodiment, the third engaging portion 226 is formed in the form of a hole and penetrates the engaging rib 224 . The third joint portion 226 has a structure that can be combined with a shaft or a hinge, and can be deformed into various forms.

When it is necessary to distinguish the joint rib 214 of the first blade and the joint rib 224 of the second blade, the joint part of the first blade is defined as the first joint rib 214 , and the joint part of the second blade is defined as the second joint rib 224.

The second vane 220 can relatively rotate around the second engaging rib 224, or can relatively rotate around the second vane shaft 221. That is, the second blade 220 can rotate relative to each other at the second engaging ribs 224 and the second blade shaft 221 .

The second engaging rib 224 is located further forward than the second blade shaft 221 when viewed from above. The second engaging rib 224 moves according to a predetermined track with the second blade shaft 221 as the center.

The second blade body 222 may be formed as a slow curved surface.

The second vane body 222 controls the direction of the air discharged along the discharge flow path 104 . The expelled air collides with the upper surface or the lower surface of the second blade body 222, thereby guiding the flow direction of the air.

The flow direction of the expelled air and the longitudinal direction of the second blade body 222 are orthogonal to or intersect with each other.

At least a portion of the second blade body 222 may be located between the first joint portions 212 of the first blade 210 when viewed from above.

This is a structure for preventing interference when the second blade 220 is located on the upper side of the first blade 210 . The front end of the second blade body 222 is located between the first engaging portions 214 . That is, the length of the front side of the second blade body 222 is formed to be smaller than the length between the first joint portions 214 .

The second engaging rib 224 is a mounting structure for assembling with the second blade coupling member 260 . The second engaging ribs 224 are respectively disposed on one side and the other side of the second blade body 222 .

The second engaging rib 224 is combined with the second blade coupling member 260 in a relatively rotatable manner. In this embodiment, the third engaging portion 226 and the second blade coupling member 260 are relatively rotatable. way to combine the axes.

The second engaging ribs 224 are formed by protruding upward from the upper side of the second blade body 222 . The second engaging ribs 224 are preferably formed along the flow direction of the expelled air. Thereby, the said 2nd joining rib 224 is arrange|positioned so that the longitudinal direction of the said 2nd blade|wing main body 222 may be orthogonal to or cross|intersect.

In addition, the second vane 220 rotates around the second vane shaft 221 . The second blade shafts 221 are respectively formed on one side and the other side of the second blade body 222 .

The second vane shaft 221 on the one side protrudes toward the coupling mounting portion 404 disposed on one side, and the second vane shaft 221 on the other side protrudes toward the coupling mounting portion 404 disposed on the other side.

The module main body 400 is provided with a second vane coupling portion 411 that is rotatably coupled to the second vane shaft 221 . In this embodiment, the second blade joint portion 411 is formed in the form of a hole passing through the module body 400 .

The second blade shaft 221 is located more rearward than the second engaging rib 224 . In front of the second blade shaft 221 , the second blade coupling 260 , the driving coupling 240 , and the first blade coupling 250 are arranged in sequence.

In addition, in front of the second blade coupling portion 409, the driving coupling member coupling portion 407 and the first blade coupling member coupling portion 408 are arranged in sequence.

<Arrangement of vane modules and suction grilles>

Referring to FIG. 1 to FIG. 4 and FIG. 15 , the combination structure and the separation structure of the blade module will be described in more detail.

When the suction grill 320 is separated in the state of FIG. 1 , as shown in FIG. 15 , the four blade modules 200 will be exposed. The suction grill 320 is detachably assembled to the front main body 310 .

The suction grill 320 can be separated from the front body 310 using various methods.

The suction grille 320 can be separated by rotating the opposite side with the edge of one side as a reference. Alternatively, the suction grilles 320 may be locked to each other on the front main body 310, and the locked state thereof may be released and separated. As another way, the suction grill 200 may maintain a state of being coupled to the front main body 310 by magnetic force.

In this embodiment, the suction grille 320 can be moved along the up-down direction by using the lifter 500 provided on the front main body 310 . The lifting member 500 may be connected with the suction grille 320 through metal wires (not shown). By the operation of the lifter 500, the wire can be unwound or wound, and the suction grille 320 can be moved downward or upward through such an operation.

A plurality of the lifters 500 are arranged, and each lifter 500 moves both sides of the suction grill 320 at the same time.

When the suction grill 320 moves downward, the first module main body 410 and the second module main body 420 that were previously shielded by the suction grill 320 will be exposed.

At least one of the first vane 210 and the second vane 220 of the vane module 200 may be exposed when the suction grille 320 is assembled to the front body 310 .

When the indoor unit is not running, only the first blade 210 is exposed to the user. The second vane 220 may be selectively exposed to the user when the discharged air is discharged due to the operation of the indoor unit.

When the suction grill 320 is assembled to the front body 310 , the first module body 410 and the second module body 420 of the blade module 200 are shielded by the suction grill 320 .

Since the first module body 410 and the second module body 420 are respectively provided with fastening holes 403 , the fastening holes 403 are shielded by the suction grill 320 and hidden from the user.

In addition, since the first module body 410 and the second module body 420 are arranged on the upper side of the grille corners 327 constituting the suction grille 320 , the grille corners 327 cut off the first module body 410 and the second module body 420 . The module body 410 and the second module body 420 are exposed to the outside.

The corners 327 of the grille are also cut off from the fastening holes 403 formed on the first module body 410 and the second module body 420 to be exposed. Since the grille corners 327 are located on the lower side of the fastening holes 403 , the fastening holes 403 are hidden by the grille corners 327 .

To be more specific, the suction grill 320 includes a grill main body 322, which is arranged on the lower side of the suction port 101, and communicates with the suction port 101 through a plurality of grill holes 321, forming a is a quadrilateral shape; the first grid corner 327-1, the second grid corner 327-2, the third grid corner 327-3, and the fourth grid corner 327-4, from all The corners of the grid body 322 are formed to extend diagonally.

The vane module 200 includes: a first vane module 201, disposed outside each edge of the suction grille 320, and disposed on the first grille corner portion 327-1 and the second grille corner portion 327 Between -2; the second blade module 202 is arranged outside each edge of the suction grill 320, and is arranged at the second grille corner portion 327-2 and the third grille corner portion 327-3 The third blade module 203 is arranged outside each edge of the suction grille 320, and is arranged between the third grille corner portion 327-3 and the fourth grille corner portion 327-4 ; and the fourth blade module 204, which is arranged outside each edge of the suction grille 320, and is arranged between the fourth grille corner portion 327-4 and the first grille corner portion 327-1.

The first module main body 410 and the second module main body 420 arranged between the first blade module 201 and the second blade module 202 are located on the upper side of the first grille corner portion 327-1, and are A grille corner 327-1 is hidden. Specifically, the second module body of the first blade module and the first module body of the second blade module are arranged on the upper side of the first grille corner.

The first module body and the second module body disposed between the second blade module 202 and the third blade module 203 are located on the upper side of the second grille corner 327-2, and are surrounded by the second grille. The grille corners 327-2 are hidden. Specifically, the second module body of the second blade module and the first module body of the third blade module are arranged on the upper side of the second grille corner.

The first module body and the second module body disposed between the third blade module 203 and the fourth blade module 204 are located on the upper side of the third grille corner 327-3, and are surrounded by the third grille. The grille corners 327-3 are hidden. Specifically, the second module body of the third blade module and the first module body of the fourth blade module are arranged on the upper side of the corners of the third grille.

The first module body and the second module body disposed between the fourth blade module 204 and the first blade module 201 are located on the upper side of the fourth grille corner 327-4, and are surrounded by the fourth grille. The grille corners 327-1 are hidden. Specifically, the second module body of the fourth blade module and the first module body of the first blade module are arranged on the upper side of the corners of the fourth grid.

15 , the blade module 200 arranged in the 12 o'clock direction is defined as the first blade module 201, the blade module 200 arranged in the 3 o'clock direction is defined as the second blade module 202, and the blade module 200 arranged in the 6 o'clock direction is defined as the second blade module 202 The third blade module 203 is defined, and the blade module 200 arranged in the 9 o'clock direction is defined as the fourth blade module 204 .

The first blade module 201 , the second blade module 202 , the third blade module 203 , and the fourth blade module 204 are arranged at intervals of 90 degrees with reference to the center C of the front panel 300 .

The first blade module 201 and the third blade module 203 are arranged in a parallel manner, and the second blade module 202 and the fourth blade module 204 are arranged in a parallel manner.

Four side covers 314 are arranged on the front body 310 . For the convenience of description, the side cover 314 disposed outside the first blade module 201 is defined as the first side cover 314-1, and the side cover 314 disposed outside the second blade module 202 is defined as the first side cover 314-1 For the second side cover 314 - 2 , the side cover 314 arranged outside the third blade module 203 is defined as a third side cover 314 - 3 , and the side cover 314 arranged outside the fourth blade module 204 is defined as a third side cover 314 - 3 . The partial cover 314 is defined as the fourth side cover 314-4.

Each side cover 314 is assembled to the edge of the front frame 312 , is located on the lower side of the front frame 312 , is exposed to the outside, and is disposed outside each blade module 202 .

In addition, the corner cover 316 disposed between the first blade module 201 and the second blade module 202 is defined as a first corner cover 316-1. The corner cover 316 disposed between the second blade module 202 and the third blade module 203 is defined as a second corner cover 316-2. The corner cover 316 disposed between the third blade module 203 and the fourth blade module 204 is defined as a third corner cover 316-3. The corner cover 316 disposed between the fourth blade module 204 and the first blade module 201 is defined as a fourth corner cover 316-4.

The first corner cover 316-1 is assembled on the corner of the front frame 312, located on the lower side of the front frame 312, and located on the first side cover 314-1 and the second side cover 314-2 and exposed to the outside.

The second corner cover 316-2 is assembled on the corner of the front frame 312, located on the lower side of the front frame 312, and located on the second side cover 314-2 and the third side cover 314-3 and exposed to the outside.

The third corner cover 316-3 is assembled on the corner of the front frame 312, located on the lower side of the front frame 312, and located on the third side cover 314-1 and the fourth side cover 314-4 and exposed to the outside.

The fourth corner cover 316-4 is assembled on the corner of the front frame 312, located on the lower side of the front frame 312, and located on the fourth side cover 314-1 and the first side cover 314-1 and exposed to the outside.

The first corner cover 316-1 and the third corner cover 316-3 are arranged along the diagonal direction with reference to the center C of the front panel 300, and are arranged so as to face each other. The second corner cover 316-2 and the fourth corner cover 316-4 are arranged along the diagonal direction with reference to the center C of the front panel 300, and are arranged to face each other.

Virtual diagonal lines passing through the center of the front panel 300 are defined as P1 and P2. The P1 is a virtual line connecting the first corner cover 316-1 and the third corner cover 316-3, and the P2 is a virtual line connecting the second corner cover 316-2 and the fourth corner cover 316- 4 virtual wires connected to each other.

A first grille corner portion 327 - 1 , a second grille corner portion 327 - 2 , a third grille corner portion 327 - 3 and a fourth grille corner portion 327 - 1 extending toward the corner side are arranged on the suction panel 320 Grid edge corner 327-4.

Taking the grille corners as a reference, the first vane modules 201 are arranged outside each edge of the suction grille 320, and are arranged at the first grille corners 327-1 and the second grille between the corners 327-2 of the grid.

The second vane module 202 is arranged outside each edge of the suction grille, and is arranged between the second grille corner portion 327-2 and the third grille corner portion 327-3.

The third vane module 203 is arranged outside each edge of the suction grille, and is arranged between the third grille corner portion 327-3 and the fourth grille corner portion 327-4.

The fourth vane module 204 is disposed outside each edge of the suction grille, and is disposed between the fourth grille corner portion 327-4 and the first grille corner portion 327-1.

The first grille corner portion 327-1 extends toward the first corner cover 316-1, and forms a continuous surface with the outer surface of the first corner cover 316-1.

The grille corner boundary 326 of the first grille corner portion 327-1 is opposite to the inner boundary 317 of the corner decoration of the first corner cover 316-1, and forms an inner boundary gap 317a of the corner decoration .

The grille corner borders 326 of the remaining grille corner portions 327 and the inner borders 317 of the corner trims of the corner cover 316 are also opposite to each other, and form an inner border gap 317a of each corner trim.

The first module body 410 and the second module body 420 are located inside the corner cover 316 (specifically, the center C side of the front panel). In particular, based on the virtual diagonal lines P1 and P2, the first module body 410 and the second module body 420 are arranged to face each other.

Specifically, the first module main body 410 of the first blade module 201 and the second module main body 420 of the fourth blade module 204 are arranged to face each other with the virtual diagonal line P2 as a reference.

In addition, the first module main body 410 of the second blade module 202 and the second module main body 420 of the first blade module 201 are arranged to face each other with reference to the virtual diagonal line P1.

Further, the first module main body 410 of the third blade module 201 and the second module main body 420 of the second blade module 202 are arranged to face each other with reference to the virtual diagonal line P2.

Further, the first module main body 410 of the fourth blade module 204 and the second module main body 420 of the third blade module 203 are arranged to face each other with reference to the virtual diagonal line P1.

In addition, the suction grill 320 is located on the lower side of the first module body 410 and the second module body 420, and the first module body 410 and the second module body 420 are hidden and not exposed. That is, when the suction grill 320 is in close contact with the front main body 310, the first module body 410 and the second module body 420 are shielded by the suction grill 320 and are not exposed to the user.

Since the first module body 410 and the second module body 420 are hidden, the first module body 410 and the second module body 420 have the advantage that the fastening holes 403 formed on the suction grill 320 are also hidden from the user.

The suction grille 320 is formed with four grille corner portions 327 arranged so as to face each corner cover 316 . Each of the grille corners 327 is disposed opposite to the corner covers 316 .

The grille corner portion 327 arranged to face the first corner cover 316-1 is defined as a first grille corner portion 327-1, and the grille corner portion 327 to be arranged to face the second corner cover 316-2 The grille corner portion 327 of 1 is defined as the second grille corner portion 327-2, and the grille corner portion 327 disposed opposite to the third corner cover 316-3 is defined as the third grille corner portion Section 327-3, the grille corner portion 327 disposed opposite to the fourth corner cover 316-4 is defined as a fourth grille corner portion 327-4.

When viewed from the bottom, the plurality of module bodies 400 are located on the upper side of the grille corners 327 and are hidden by the grille corners 327 .

In particular, the grille side boundary 325 forming the edge of the grille corner portion 327 and the corner trim inner boundary 317 forming the inner edge of the corner cover 316 are arranged in such a way as to face each other, and have a curved shape. also correspond to each other.

Likewise, the grille corner boundary 326 forming the edge of the grille corner portion 327 and the inner edge of the first blade 210 are arranged to face each other, and the shapes of the curves also correspond to each other.

In addition, in this embodiment, a permanent magnet 318 and a magnetic fixing portion 328 are arranged to maintain the state in which the suction grille 320 is in close contact with the front main body 310 .

One of the permanent magnets 318 or the magnetic fixing parts 328 may be arranged on the front main body 310 , and the other of the magnetic fixing parts 328 or the permanent magnets 318 may be arranged on the upper and side surfaces of the grid corners 327 .

The permanent magnet 318 and the magnetic fixing portion 328 are located on the upper side of each grid corner portion 327 and are hidden by each grid corner portion 327 . Since the permanent magnets 318 and the magnetic fixing portions 328 are located outside each corner of the suction grille 320, the situation that the suction grille 320 and the front main body 310 are separated can be minimized.

When the suction grille 320 and the front main body 310 are separated from each other, a problem of a decrease in the internal pressure of the suction flow path 103 occurs.

In this embodiment, the permanent magnet 318 is disposed on the front main body 310 . Specifically, the permanent magnets are arranged on the corner frames 313 .

The magnetic fixing portion 328 is formed of a metal material that interacts with the permanent magnet 318 to form an attractive force. The magnetic fixing portion 328 is arranged on the upper side surface of the suction grill 320 . Specifically, the magnetic fixing portion 328 is disposed on the upper side surface of the corner portion 327 of the grille.

When the suction grill 320 moves upward and approaches the permanent magnet 318 , the permanent magnet 318 will pull the magnetic fixing portion 328 to fix the suction grill 320 . The magnetic force of the permanent magnet 318 is smaller than the self-weight of the suction grille 320 . Accordingly, when the suction grill 320 cannot be pulled by the lifter 500, the coupling of the permanent magnet 318 and the magnetic fixing portion 328 is released.

The permanent magnets 318 are arranged on the virtual diagonal lines P1 and P2 when viewed from above or below. The permanent magnet 318 is located inside the corner cover 316 .

One of the four permanent magnets 318 is disposed between the first module main body 410 of the first blade module 201 and the second module main body 420 of the fourth blade module 204 when viewed from above or below. The remaining three permanent magnets are also arranged between the first module body 410 and the second module body 420 of each blade module.

The permanent magnet 318 and the magnetic fixing portion 328 are located on the upper side of each grid corner portion 327 and are hidden by each grid corner portion 327 .

<Discharge step corresponding to the operation of the vane motor>

In this embodiment, when the indoor unit is not running (when the indoor blower is not running), in each blade module 200, as shown in the figure, the second blade 220 is located on the upper side of the first blade 210, and the first blade 210 covers the discharge port 102 . The lower side surface of the first vane 210 forms a continuous surface with the lower side surface of the suction grill 320 and the lower side surface of the side cover 314 .

When the indoor unit is not running, since the second blade 220 is located on the upper side of the first blade 210, it is in a hidden state when viewed from the outside. The second blade 220 is exposed to the user only when the indoor unit is operating. Accordingly, the second vane 220 is positioned on the discharge flow path 104 when the indoor unit is not operating, and the first vane 210 covers most of the discharge port 102 .

In the present embodiment, although the first vane 210 covers most of the discharge port 102 , it may be formed such that the first vane 210 covers the entire discharge port 210 depending on the design.

When the indoor blower is operated with the second vane 220 stored, the vane motor 230 is operated, and the first vane 210 and the second vane 220 can be changed to six discharge steps P1, P2, P3, P4, P5 , one of P6.

A stop step P0 is defined when the indoor unit stops and the blade module 200 does not operate.

<Stop step P0>

In the stop step P0 state, the blade module 200 is in a non-operational state. When the indoor unit is not running, the blade module 200 maintains the state of the stop step P0.

In the state of the stop step P0, in the blade module 200, the blade motor 230 will rotate the drive coupling 240 to the first direction (the clockwise direction in the drawing of this embodiment) to the maximum extent.

At this time, the second drive link body 247 constituting the drive link 240 is supported on one side end 271 of the stopper 270, and further rotation thereof in the first direction will be restricted.

In order to prevent over-rotation of the drive link 240, in the stopping step P0, the second drive link body 247 and the other side end 270b of the stopper 270 interfere with each other. The second drive coupling body 247 is supported by the stopper 270 and its further rotation will be restricted.

The drive coupling 240 rotates in the first direction around the core coupling shaft 243 , and the first blade coupling 250 rotates in the first direction around the 1-2 blade coupling shaft 252 .

The first vane 210 rotates while being restrained by the drive link 240 and the first vane link 250 , and is located in the discharge port 102 . The lower side of the first vane 210 forms a continuous surface with the suction panel 320 and the side cover 314 .

In the stop step P0 state, the second vane 220 is located on the upper side of the first vane 210 . When viewed from a plane, the second vane 220 is located between the first joint portions 214 and on the upper side of the first vane body 212 .

In addition, in the state of the stop step P0, the drive coupling 240, the first blade coupling 250, and the second blade coupling 260 are arranged on the upper side of the first blade 210. The drive coupling 240 , the first blade coupling 250 and the second blade coupling 260 are hidden by the first blade 210 and cannot be seen from the outside. That is, in the state of the stop step P0, the first vane 210 covers the discharge port 102, and the members constituting the vane module 200 are cut and exposed to the outside.

When the step P0 is stopped, the driving coupling 240 is in a state of maximally rotating clockwise, and the second blade coupling 260 is in a state of maximally rising.

When the indoor unit is not running, since the second blade 220 is located on the upper side of the first blade 210, it is in a hidden state when viewed from the outside. The second blade 220 is exposed to the user only when the indoor unit is operating.

In the stop step P0, the positional relationship of the shafts forming the rotation center of each link is described as follows.

First, the first joint portion 216 and the second joint portion 217 of the first blade 210 are arranged substantially horizontally. The second engaging rib 224 of the second blade 220 is located on the upper side of the first engaging rib 214 .

When viewed from the side, the second engaging rib 224 is located on the upper side of the second engaging portion 217 and the first engaging portion 216 and between the first engaging portion 216 and the second engaging portion 217 .

In addition, since the 2-1 blade coupling shaft 261 is coupled to the second engaging rib 224 , the 2-1 blade coupling shaft 261 is also located on the upper side of the second engaging portion 217 and the first engaging portion 216 .

The first engaging portion 216 and the second engaging portion 217 are located on the upper side of the first blade body 212 and are located on the lower side of the second blade body 222 .

When the indoor unit is stopped, the second blade 220 is located on the upper side of the first blade 210, and is arranged on the upper side of the first drive coupling shaft 241 and the 1-1 blade coupling shaft 251 The 2-1st blade coupling shaft 261 .

In addition, the 2-1 vane link shaft 261 is located at a position higher than the second vane shaft 221 , and the second vane link shaft 261 is located at an upper position. - 2 blade coupling shaft 262 is located higher.

The 2-2 blade coupling shaft portion 262 is positioned above the 2-1 blade coupling shaft portion 261 and is positioned above the core coupling shaft 243 .

Next, the relative positions and directions of the links in the stopping step P0 will be described as follows.

In addition, the first blade coupling 250 and the second blade coupling 260 are arranged in the same direction. The upper ends of the first vane link 250 and the second vane link 260 are located on the front side in the air discharge direction, and the lower ends are located on the rear side in the air discharge direction.

Specifically, the 1-2 vane link shaft 252 of the first vane link 250 is located on the front side, and the 1-1 vane link shaft 251 of the first vane link 250 is located on the rear side. The 1-2 blade coupling shaft 252 of the first blade coupling 250 is positioned above the 1-1 blade coupling shaft 251 . The first vane link 250 is disposed so as to be inclined rearward and downward with reference to the 1-2 vane link shaft 252 .

Similarly, the 2-2 blade coupling shaft portion 262 of the second blade coupling 260 is positioned on the front side, and the 2-1 blade coupling shaft portion 261 of the second blade coupling member 260 is positioned on the rear side. The 2-2 blade coupling shaft portion 262 of the second blade coupling 260 is positioned above the 2-1 blade coupling shaft 261 . The second vane link 260 is disposed so as to be inclined rearward and downward with reference to the 2-2 vane link shaft portion 262 .

The first drive coupling body 246 of the drive coupling 240 is arranged in the same direction as the first blade coupling 250 and the second blade coupling 260, and the second drive coupling body 247 is connected to the first blade The arrangement directions of the coupling member 250 and the second blade coupling member 260 intersect.

<Spit Step P1>

In the state where the step P0 is stopped, the drive coupling 240 is rotated in a second direction (counterclockwise in the drawing of this embodiment) that is opposite to the first direction to provide a discharge step P1.

In the discharge step P1 state, the blade module 200 can provide horizontal wind.

In the horizontal wind state, the air discharged from the discharge port 102 is guided by the first blade 210 and the second blade 220 and can flow in a direction horizontal to the ceiling or the ground.

When the discharge air is made to flow in a horizontal wind manner, the flow distance of the air can be maximized.

The horizontal wind is provided in the discharge step P1, which can form such a flow that the discharged air flows along the ceiling of the room, collides with the wall of the room, and flows downward toward the ground, and when it collides with the ground, it flows downward toward the ground. Back to the indoor unit side.

That is, in the discharge step P1, the air is not directly supplied to the indoor person, but the indirect air is supplied to the indoor person.

In the state of the discharge step P1, the upper side surfaces of the first vane 210 and the second vane 220 may form a continuous surface. In the state of the ejection step P1, the first vane 210 and the second vane 220 are connected as one vane and guide the ejected air.

When the blade module 200 provides the discharge step P1 as one of the plurality of discharge steps, the first blade 210 is located on the lower side of the discharge port 102 , and the end 222 a of the second blade 220 is located on the front side. It is located above the rear end 212 a of the first blade 210 .

The upper side of the second blade 220 is located at a higher position than the upper side of the first blade 210 .

In the present embodiment, the first vane 210 is arranged on the front side in the flow direction of the discharged air, and the second vane 220 is arranged on the rear side in the flow direction of the discharged air. The end 222a on the front side of the second blade 220 may be close to or in contact with the end 212b on the rear side of the first blade 210 . In the discharge step P1 state, the distance S1 between the end 222a on the front side of the second vane 220 and the end 212b on the rear side of the first vane 210 can be minimized.

The rear end 222b of the second vane is positioned above the discharge port 102, the front end 222a of the second vane is positioned below the discharge port 102, and the The end 212b on the rear side of the first blade is located at a lower position than the end 222a on the front side of the second blade.

In the discharge step P1 state, the front end 222 a of the second vane 220 is positioned above the rear end 212 b of the first vane 210 .

By bringing the end 222a on the front side and the end 212b on the rear side close to or in contact with each other, the leakage of the discharged air between the first vane 210 and the second vane 220 can be minimized.

In this embodiment, the end 222a on the front side and the end 212b on the rear side are brought close to each other but not in contact.

In addition, when the blade module 200 forms horizontal wind in the discharge step P1, the first blade 210 and the second blade 220 will be connected and operate like one blade, so the airflow intensity of the horizontal wind can be increased. That is, since the discharged air is guided in the horizontal direction along the top surface of the second blade 220 and the top surface of the first blade 210, the directionality of the discharged air can be further enhanced compared with the case where a horizontal wind is formed by one blade .

When a horizontal wind is formed, the second blade 220 is slightly inclined in the up-down direction compared to the first blade 210 .

In the case of the horizontal wind, the first vane 210 is positioned lower than the discharge port 102 when viewed from the side, and the second vane 220 is disposed so as to overlap the discharge port 102 . should.

In the discharge step P1 state, the second vane 220 rotates at the original position with the second vane shaft 221 as the center, and the first vane 210 is assembled with the drive coupling 240 and the first vane coupling 250 , and the first vane 210 is connected to the air. Rotate (swing) in the discharge direction.

When going from P0 to P1, the second vane 220 rotates around the second vane shaft 221, the first vane 210 advances along the air discharge direction and descends downward, and the front end 212a of the first vane faces Rotation is performed in the first direction (clockwise in the drawing).

By the rotation of the drive link 240 and the first vane link 250, the first vane 210 can be moved to the lower side of the discharge port 102, and the first vane 210 can be arranged substantially horizontally. Since the blades of the indoor unit in the prior art adopt the structure of rotating in the original position, the arrangement of the first blades 210 as in this embodiment cannot be realized.

In the stopping step P0, when the vane motor 230 rotates the drive link 240 to the second direction (counterclockwise), the second vane link 260 combined with the drive link 240 will also be connected with the drive link 240. The drive coupling 240 rotates accordingly.

Specifically, when the stop step P0 is changed to the discharge step P1, the drive link 240 rotates counterclockwise, and the first blade link 210 rotates along with the rotation of the drive link 240 . Rotating in a counterclockwise direction, the second blade coupling member 220 relatively rotates and descends.

Since the second vane 220 is in a state of being assembled with the second vane shaft 221 and the second vane coupling 260 in a relatively rotatable manner, as the second vane coupling 220 descends, the second vane 220 It rotates clockwise about the second blade shaft 221 .

In order to create the horizontal wind, when the stop step P0 is changed to the discharge step P1, the rotation directions of the first blade 210 and the second blade 220 are reversed.

In the discharge step P1, the vane motor 230 rotates by 78 degrees (P1 rotation angle), and as the vane motor 230 rotates, the first vane 210 forms an inclination of approximately 16 degrees (the first vane P1 inclination). , the second blade 220 forms an inclination of approximately 56.3 degrees (the inclination of the second blade P1 ).

The positional relationship of the shafts forming the rotation center of each link in the discharge step P1 will be described as follows.

First, unlike the above P0, the second joint portion 217 and the first joint portion 216 of the first vane 210 are disposed inclined forward in the air discharge direction. When viewed from the side, the third joint portion 226 of the second blade 220 is arranged at the rearmost position, the first joint portion 216 is arranged at the frontmost position, and the second joint portion 217 is arranged between the first joint portion 216 and the first joint portion 216. between the three joints 226 .

Compared with the second blade shaft 221, the 2-1 blade coupling shaft 261 is located at a lower position, and compared with the 2-1 blade coupling shaft 261, the first drive coupling The shaft 241 is located at a lower position, and the 1-1 blade link shaft 251 is located at a lower position than the first drive link shaft 241 .

In the P1 state, the third engagement portion 226 , the second engagement portion 217 , and the first engagement portion 216 are arranged in a row, and the arrangement direction thereof is directed toward the front and lower side in the air discharge direction. When the discharge step P1 is provided, the second vane shaft 221 , the 2-1st vane link shaft 261 , the first drive link shaft 241 , and the 1-1st vane link shaft 251 are arranged in a row.

According to an embodiment, the third engaging portion 226 , the second engaging portion 217 and the first engaging portion 216 may not be arranged in a row.

At the same time, the second vane shaft 221 may be arranged in a row with the third engagement portion 226 , the second engagement portion 217 , and the first engagement portion 216 . In this case, the second vane shaft 221 is located on the rear side of the third engaging portion 226 .

In the P1 state, the first blade 210 and the second blade 220 will provide horizontal wind. The horizontal wind does not mean that the discharge direction of the air is exactly horizontal. The horizontal wind means that the first vane 210 and the second vane 220 are connected like a vane, and the connection of the first vane 210 and the second vane 220 can make the discharged air the most in the horizontal direction. The angle of the distant flow.

In the discharge step P1 state, the distance S1 between the end 222a on the front side of the second vane 220 and the end 212b on the rear side of the first vane 210 can be minimized.

In the case of the horizontal wind, the air guided by the second blade 220 is guided toward the first blade 210 . When the discharge air flows as horizontal wind in the P1 state, the flow distance of the air can be maximized.

Since the discharge flow path 104 is formed along the vertical direction, the inclination of the second vane 220 adjacent to the suction port 101 is formed to be steeper than the inclination of the first vane 210 .

In addition, in the state of the discharge step P1, the 1-1 vane link shaft 251 of the first vane link 250 is located on the lower side of the 1-2 vane link shaft 252 .

In the discharge step P1 state, the 2-1 vane link shaft 261 of the second vane link 260 is located on the lower side of the 2-2 vane link shaft portion 262 .

In the discharge step P1 state, the first driving coupling shaft 241 of the driving coupling 240 is located on the lower side of the second driving coupling shaft 242 and the core coupling shaft 243 .

In the discharge step P1 state, in the vertical direction, the third engaging portion 226 is located on the uppermost side, the first engaging portion 216 is located on the lowermost side, and the second engaging portion 217 is located therebetween.

In the discharge step P1 state, the first engagement portion 216 and the second engagement portion 217 are arranged between the core coupling shaft 243 and the 1-2 blade coupling shaft 252 . When the ejection step P1 is provided, the first drive coupling shaft 241 and the 1-1 blade coupling shaft 251 are arranged between the core coupling shaft 243 and the 1-2 blade coupling shaft 252 .

In addition, in the state of the discharge step P1, the first drive link shaft 241 and the 1-1 vane link shaft 251 are located on the lower side of the suction panel 320 . In the discharge step P1 state, the first drive link shaft 241 and the 1-1 blade link shaft 251 are located on the lower side of the discharge port 102 . The 2-1 blade coupling shaft 261 is located in the boundary range of the discharge port 102 .

With the arrangement as described above, in the state of the discharge step P1, the first vane 210 is located on the lower side of the discharge port 102 . In the discharge step P1 state, the front end 222 a of the second vane 220 is positioned below the discharge port 102 , and the rear end 222 b is positioned above the discharge port 102 .

Next, the relative position and direction of each link in the state of the discharge step P1 will be described below.

The length direction of the first drive coupling body 246 is defined as DD'. The length direction of the first blade coupling 250 is defined as L1-L1'. The length direction of the second blade coupling 260 is defined as L2-L2'.

In the discharge step P1 state, the first vane link 250 , the second vane link 260 and the first drive link body 246 are arranged in the same direction. In this embodiment, the first blade coupling 250 , the second blade coupling 260 and the first driving coupling main body 246 are all arranged in the up-down direction when the discharge step P1 is in the state.

Specifically, L1-L1' of the first blade coupling 250 are arranged in a nearly vertical manner, and L2-L2' of the second blade coupling 260 are also arranged in a nearly vertical manner. DD' of the first drive link main body 246 is arranged so as to face the lower side in the air discharge direction.

In the discharge step P1 state, the first vane 210 is positioned below the discharge port 102 , and the front end 222 a of the second vane 220 is positioned below the discharge port 102 . That is, in the case of the horizontal wind, only a part of the second blade 220 is located outside the discharge port 102 , and the entire first blade 210 is located outside the discharge port 102 .

In the discharge step P1 state, the front end 212 a of the first vane 210 is positioned further forward than the front edge 102 a of the discharge port 102 with respect to the discharge port 102 .

<Spit Step P2>

In the horizontal wind state of the discharge step P1, the drive coupling 240 can be rotated in a second direction (counterclockwise in the drawings of this embodiment) that is opposite to the first direction, thereby forming the discharge step order P2.

When the blade module provides one of the discharge steps P2 to P5, the end 212b on the rear side of the first blade is located at a higher position than the end 222a on the front side of the second blade, and is located at the same The position of the 2-1st blade coupling shaft 261 is the same or lower.

In addition, when the blade module provides one ejection step from P2 to P5, for the virtual straight line D-D' connecting the core coupling shaft 243 and the first driving coupling shaft 241, in the order In the clockwise direction, the included angle formed by the core coupling shaft 243 , the first driving coupling shaft 241 and the 1-1 blade coupling shaft 251 forms an acute angle.

In the discharge step P2 state, the blade module 200 can provide oblique wind. The slanted wind is defined as the spitting step between the horizontal wind and the vertical wind. In this embodiment, the inclined wind represents steps P2, P3, P4, and P5.

The oblique wind blows air more downward than the horizontal wind blowing out the step P1. In the discharge step P2, both the first vane 210 and the second vane 220 are adjusted to be more toward the lower side than the step P1.

In the discharge step P2, wind similar to the horizontal wind is provided, which can form such a flow that the discharged air flows along the ceiling of the room, collides with the wall of the room, and flows downward toward the ground, and then flows downward. Return to the indoor unit side after colliding with the ground.

In the spitting step P2, indirect wind is provided to the indoor occupants.

In the discharge step P2, the interval S2 between the front end 222a of the second vane 220 and the rear end 212b of the first vane 210 is formed to be wider than the interval S1 in the discharge step P1 state.

That is, when progressing from the discharge step P1 to P2, the distance between the end 222a on the front side of the second vane 220 and the end 212b on the rear side of the first vane 210 becomes larger. In the discharge step P2, the first vane 210 and the second vane 220 are arranged more vertically than in the case of P1.

When the state is changed from the discharge step P1 to the discharge step P2, the front end 222a of the second vane 220 is lowered, and the rear end 212b of the first vane 210 is raised.

In the discharge step P2 state, the front end 222a of the second vane 220 and the rear end 212b of the first vane 210 are located at similar heights.

When proceeding from the discharge step P1 to P2, the second vane 220 rotates at the original position with the second vane shaft 221 as the center, and the first vane 210 is assembled with the drive link 240 and the first vane link 250 Turn (wobble).

In particular, when going from P1 to P2, the first vane 210 advances slightly in the air discharge direction, and the front end 212a of the first vane rotates slightly more in the first direction (clockwise in the drawing).

Since the second vane 220 is in a state of being relatively rotatable with the second vane shaft 221 and the second vane coupling 260 , as the second vane coupling 220 rotates, the second vane shaft 221 rotates Rotate slightly more clockwise for the center.

The front end 222a of the second blade 220 rotates slightly more in the second direction (clockwise in the drawing).

When changing from the discharge step P1 to the discharge step P2, the rotation directions of the first vane 210 and the second vane 220 are reversed.

In the discharge step P2, the vane motor 230 rotates by 82 degrees (P2 rotation angle), and the first vane 210 forms an inclination of approximately 18.6 degrees (the first vane P2 inclination) as the vane motor 230 rotates. , the second vane 220 forms an inclination of approximately 59.1 degrees (the inclination of the second vane P2).

The positional relationship of the shafts forming the rotation center of each link in the discharge step P2 will be described below.

Similar to the above-mentioned P1, in the discharge step P2, the second joint portion 217 and the first joint portion 216 of the first vane 210 are disposed inclined forward in the discharge direction of the air.

When viewed from the side, the third joint portion 226 of the second blade 220 is arranged at the rearmost position, the first joint portion 216 is arranged at the frontmost position, and the second joint portion 217 is arranged between the first joint portion 216 and the first joint portion 216. between the three joints 226 .

In the P2 state, the third engagement portion 226 , the second engagement portion 217 , and the first engagement portion 216 are arranged to face the front and lower side in the air discharge direction when the blade module 200 is viewed from the side.

Taking the discharge step P2 as a reference, the third engaging portion 226 moves slightly further downward, and the first engaging portion 216 and the second engaging portion 217 move slightly further forward. That is, the interval between the second vane 220 and the first vane 210 is slightly further widened.

In the state of the discharge step P2, the arrangement of the first blade coupling 250, the second blade coupling 260 and the driving coupling 240 is similar to that of the discharge step P1.

In the discharge step P2 state, the 1-1 vane link shaft 251 of the first vane link 250 is located on the lower side of the 1-2 vane link shaft 252 . In the discharge step P2 state, the 2-1 vane link shaft 261 of the second vane link 260 is located on the lower side of the 2-2 vane link shaft portion 262 . In the discharge step P2 state, the first driving coupling shaft 241 of the driving coupling 240 is located on the lower side of the second driving coupling shaft 242 and the core coupling shaft 243 .

In the discharge step P2 state, the second vane shaft 221 is located on the uppermost side, the third engaging portion 226 is located on the lower side of the second vane shaft 221, the second engaging portion 217 is located on the lower side of the third engaging portion 226, and the first engaging portion 216 Located on the lower side of the second engaging portion 217 .

In the discharge step P2 state, the second engaging portion 217 rotates slightly more toward the 1-2 blade link shaft 252 around the core link shaft 243 .

Taking the suction panel 320 or the discharge port 102 as a reference, in the state of the discharge step P2, the entire first vane 210 is positioned below the discharge port 102 . In the discharge step P2 state, the front end 222 a of the second vane 220 is positioned below the discharge port 102 , and the rear end 222 b is positioned above the discharge port 102 .

Thereby, in the state of the discharge step P2, the first drive link shaft 241 and the 1-1 blade link shaft 251 are positioned on the lower side of the suction panel 320 . In the discharge step P2 state, the first drive link shaft 241 and the 1-1 blade link shaft 251 are located on the lower side of the discharge port 102 . The 2-1 blade coupling shaft 261 is located in the boundary range of the discharge port 102 .

Next, the relative position and direction of each link in the state of the discharge step P2 will be described below.

In the discharge step P2 state, the first vane link 250 and the second vane link 260 are arranged in substantially the same direction, and the first drive link body 246 is arranged obliquely toward the front and lower side. In particular, in the discharge step P2 state, the first vane link 250 and the second vane link 260 are arranged substantially vertically.

Specifically, when changing from the discharge step P1 state to the discharge step P2 state, L1 - L1 ′ of the first vane coupling 250 rotates slightly more toward the air discharge direction side. When the state of the discharge step P1 is changed to the state of the discharge step P2, the L2-L2' of the second vane coupling 260 rotates slightly more toward the opposite side of the air discharge direction. When the state of the discharge step P1 is changed to the state of the discharge step P2, the DD' of the first drive link main body 246 rotates slightly more toward the air discharge direction side.

In the discharge step P2 state, the entirety of the first vane 210 is positioned below the discharge port 102 , and only the front end 222 a of the second vane 220 is positioned below the discharge port 102 .

When changing from the discharge step P1 to the discharge step P2, the front end 212a of the first vane 210 moves slightly further forward than the front edge 102a of the discharge port 102 based on the discharge port 102.

<Spit Step P3>

In the discharge step P2 state, the drive link 240 can be rotated in a second direction (counterclockwise in the drawing of this embodiment) opposite to the first direction, thereby forming the discharge step P3.

In the state of spouting step P3, the blade module 200 can provide oblique wind that is spouted further downward than when spouting step P2. The wind provided in the discharge steps P3 to P5 is an oblique wind that directly supplies air to the indoor occupants.

During cooling, the discharged air is heavier than the indoor air and flows downward, and when heating is performed, the discharged air is lighter than the indoor air and flows upward. Therefore, the discharge step P3 is mainly used during cooling, and the discharge step P4 described later is mainly used during heating.

The oblique wind of the discharge step P3 discharges air to the lower side than the oblique wind of the step P2. Compared with the step P2, in the discharge step P3, the first vane 210 and the second vane 220 are both adjusted to be oriented more toward the lower side.

In the discharge step P3, the interval S3 between the end 222a on the front side of the second vane 220 and the end 212b on the rear side of the first vane 210 is wider than the interval S2 in the state of the discharge step P2 open.

That is, when progressing from the discharge step P2 to P3, the distance between the end 222a on the front side of the second vane 220 and the end 212b on the rear side of the first vane 210 becomes larger. In the discharge step P3, the first vane 210 and the second vane 220 are arranged more vertically than in the case of P2.

When the state is changed from the discharge step P2 to the discharge step P3, the front end 222a of the second vane 220 is further lowered, and the rear end 212b of the first vane 210 is further raised.

In the discharge step P3 state, the front end 222a of the second vane 220 is positioned lower than the rear end 212b of the first vane 210 .

When proceeding from the discharge step P2 to P3, the second vane 220 rotates at the original position with the second vane shaft 221 as the center, and the first vane 210 is assembled with the drive link 240 and the first vane link 250 to perform Turn (wobble).

When progressing from the discharge step P2 to P3, the first vane 210 is located in a nearly home position and rotates in the first direction (clockwise). When progressing from the discharge step P2 to P3, the second vane 220 further rotates in the first direction (clockwise direction).

When progressing from the discharge step P2 to P3, the first blade 210 does not advance in the discharge direction, but instead rotates in the first direction (clockwise) at the original position.

When the discharge step P2 goes to P3, the front end 222a of the second vane 220 rotates slightly more in the first direction (clockwise) as the second vane link 220 descends.

When changing from the discharge step P2 to the discharge step P3, the rotation directions of the first vane 210 and the second vane 220 will be the same.

In the discharge step P3, the vane motor 230 rotates by 95 degrees (P3 rotation angle), and with the rotation of the vane motor 230, the first vane 210 forms an inclination of approximately 29.6 degrees (the first vane P3 inclination). , the second blade 220 forms an inclination of approximately 67.3 degrees (the inclination of the second blade P3).

The positional relationship of the shafts forming the rotation center of each link in the discharge step P3 will be described below.

Similar to the above-mentioned P2, in the discharge step P3, the second joint portion 217 and the first joint portion 216 of the first vane 210 are disposed inclined forward in the discharge direction of the air.

When viewed from the side, the third joint portion 226 of the second blade 220 is arranged at the rearmost position, the first joint portion 216 is arranged at the frontmost position, and the second joint portion 217 is arranged between the first joint portion 216 and the first joint portion 216. between the three joints 226 .

Based on the discharge step P3, the third engaging portion 226 moves slightly further downward. Taking the discharge step P3 as a reference, as the first vane link 250 and the first drive link body 246 rotate in the second direction, the first engaging portion 216 and the second engaging portion 217 rise upward.

Since the length of the first drive coupling body 246 is shorter than the length of the first blade coupling 250, the height of the upper side of the second engaging portion 217 will be greater.

In the discharge step P3 state, the arrangement of the respective shafts in the drive coupling 240 , the first blade coupling 250 , and the second blade coupling 260 is similar to that in the discharge step P2 state.

However, the first drive link shaft 241 , the 1-1st blade link shaft 251 , and the 2-1st blade are rotated with the operation of the drive link 240 , the first blade link 250 , and the second blade link 260 . The relative height of the link shaft 261 will vary.

In the discharge step P3 state, the first drive link shaft 241 is raised, and the 2-1 blade link shaft 261 is lowered, thereby forming a similar height in the vertical direction.

When the state is changed from the discharge step P2 to the P3 state, the second engaging portion 217 rotates slightly more toward the 1-2 blade link shaft 252 with the core link shaft 243 as the center, and the second engaging portion 217 and the second- 1 Blade coupling shaft 261 becomes farther.

In the discharge step P3 state, the 2-2 blade link shaft portion 262 is located at a lower position than the core link shaft 243 .

When changing from the discharge step P2 state to the discharge step P3 state, the 2-1 vane link shaft 261 moves to the rear side of the 2-2 vane link shaft portion 262 .

The positions of the first vane 210 and the second vane 220 in the state of the discharge step P3 are similar to those of the discharge step P2 based on the suction panel 320 or the discharge port 102 .

Accordingly, in the state of the discharge step P3, the first drive link shaft 241 and the 1-1 blade link shaft 251 are positioned below the suction panel 320 and the discharge port 102 . The 2-1 blade coupling shaft 261 is located in the boundary range of the discharge port 102 .

Next, the relative position and direction of each link in the discharge step P3 state will be described below.

In the discharge step P3 state, the first vane link 250 and the second vane link 260 are arranged in opposite directions to each other.

In the discharge step P3 state, the first drive link main body 246 and the first vane link 250 are arranged to be inclined toward the front and lower side. In the discharge step P3 state, the second drive link main body 247 is arranged to face the rear side, and the second blade link 260 is arranged to face the rear lower side.

Specifically, when the state of the discharge step P2 is changed to the state of the discharge step P3, the L1-L1' of the first vane coupling 250 rotates slightly more toward the air discharge direction side. When the state of the discharge step P2 is changed to the state of the discharge step P3, the L2-L2' of the second vane link 260 rotates slightly more toward the opposite side of the air discharge direction. When the state of the discharge step P2 is changed to the state of the discharge step P3, the DD' of the first drive link main body 246 rotates slightly more toward the air discharge direction side.

When changing from the discharge step P2 to the discharge step P3, the first vane 210 and the second vane 220 both rotate or rotate slightly more vertically toward the lower side with the discharge port 102 as a reference.

<Spit Step P4>

In the discharge step P3 state, the drive link 240 can be rotated in a second direction (counterclockwise in the drawing of this embodiment) opposite to the first direction, thereby forming the discharge step P4.

In the state of spouting step P4, the blade module 200 can provide oblique wind that is spouted further to the lower side than when spouting step P3. The oblique wind of the discharge step P4 discharges air to the lower side than the oblique wind of the step P3.

Compared with the discharge step P3, in the discharge step P4, the first vane 210 and the second vane 220 are both adjusted to be oriented toward the lower side.

In the discharge step P4, the interval S4 between the front end 222a of the second vane 220 and the rear end 212b of the first vane 210 is wider than the interval S3 in the discharge step P3 state. open.

When progressing from the discharge step P3 to P4, the distance between the end 222a on the front side of the second vane 220 and the end 212b on the rear side of the first vane 210 becomes larger. In the discharge step P4, the first vane 210 and the second vane 220 are arranged more vertically than in the case of P3.

When the state is changed from the discharge step P3 to the discharge step P4, the front end 222a of the second vane 220 is further lowered, and the rear end 212b of the first vane 210 is further raised.

In the discharge step P4, the front end 222a of the second vane 220 is located at a lower position than in the discharge step P3, and the rear end 212b of the first vane 210 is located in the discharge step P3. higher position.

When progressing from the discharge step P3 to P4, the second vane 220 rotates at the home position with the second vane shaft 221 as the center. When proceeding from the discharge step P3 to P4, the first engaging portion 216 of the first blade 210 stays at an almost original position, and the second engaging portion 217 takes the first engaging portion 216 as the center to move toward the first direction (clockwise direction). ) to rotate.

That is, when going from the discharge step P3 to P4, the first blade 210 hardly moves, but rotates at the original position. When progressing from the discharge step P3 to P4, the first vane 210 rotates in the first direction (clockwise direction) with the first engaging portion 216 as the center.

When progressing from the discharge step P3 to P4, the second vane 220 further rotates in the first direction (clockwise direction).

When the discharge step P3 goes to P4, the front end 222a of the second vane 220 rotates slightly more in the first direction (clockwise) as the second vane link 220 descends.

When changing from the discharge step P3 to the discharge step P4, the rotation directions of the first vane 210 and the second vane 220 will be the same.

When changing from the discharge step P3 to the discharge step P4, the 1-1st vane link shaft 251 may be positioned further forward than the 1-2nd vane link shaft 252 .

In the discharge step P4, the vane motor 230 rotates by 100 degrees (P4 rotation angle), and the first vane 210 forms an inclination of approximately 35.8 degrees as the vane motor 230 rotates (the first vane P4 inclination). , the second blade 220 forms an inclination of approximately 70 degrees (the inclination of the second blade P4).

The positional relationship of the shafts forming the rotation center of each link in the discharge step P4 will be described below.

Similar to the above-mentioned P3, in the discharge step P4, the second joint portion 217 and the first joint portion 216 of the first vane 210 are disposed inclined forward in the discharge direction of the air.

When viewed from the side, the third joint portion 226 of the second blade 220 is arranged at the rearmost position, the first joint portion 216 is arranged at the frontmost position, and the second joint portion 217 is arranged between the first joint portion 216 and the first joint portion 216. between the three joints 226 .

The third engaging portion 226 is slightly further moved downward on the basis of the discharge step P4. Taking the ejection step P4 as a reference, the first engaging portion 216 of the first blade coupling member 250 slightly rises in the second direction (counterclockwise direction) or is located at almost the original position, and the second engaging portion 217 is centered on the first engaging portion 216 Rotate in the first direction (clockwise).

When the first vane 210 is rotated by the discharge step P4 or more, the first vane 210 will move in the opposite direction to the previous direction. From the discharge step P1 to the discharge step P4, the first vane 210 moves in the discharge direction of the air, and rotates in the first direction (clockwise direction) around the second joint portion 217 .

In the discharge step P4 state, the arrangement of the respective shafts in the drive coupling 240 , the first blade coupling 250 , and the second blade coupling 260 is similar to the discharge step P3 state. However, in the discharge step P4 state, the longitudinal direction of the first drive link body 246 and the second engagement portion 217 and the first engagement portion 216 are arranged in a row.

The first drive link shaft 241 , the 1-1st blade link shaft 251 , and the 2-1st blade link that rotate with the operation of the drive link 240 , the first blade link 250 , and the second blade link 260 The relative height of shaft 261 will change.

In the discharge step P4 state, the first drive coupling shaft 241 is raised, the 2-1 blade coupling shaft 261 is lowered, and the first driving coupling shaft 241 is located slightly higher than the 2-1 blade coupling shaft 261 Location.

When the state is changed from the discharge step P3 to the P4 state, the second engaging portion 217 rotates slightly more toward the 1-2 blade link shaft 252 around the core link shaft 243, and the core link shaft 243, the first The drive link shaft 241 and the 1-1 blade link shaft 251 are linear and may be arranged in a row.

In the discharge step P4 state, the 2-2 blade link shaft portion 262 is located at a lower position than the core link shaft 243 .

When changing from the discharge step P3 state to the discharge step P4 state, the 2-1 vane link shaft 261 moves slightly further to the rear side than the 2-2 vane link shaft portion 262 .

The positions of the first vane 210 and the second vane 220 in the state of the discharge step P4 are similar to those of the discharge step P3 with reference to the suction panel 320 or the discharge port 102 .

Next, the relative position and direction of each link in the discharge step P4 state will be described below.

When the state is changed from the discharge step P3 to the discharge step P4, the first vane link 250 and the second vane link 260 are arranged in directions opposite to each other. When the state is changed from the discharge step P3 to the discharge step P4, the first vane link 250 may hardly rotate, and only the second vane link 260 may rotate to the rear side.

In this embodiment, there are no additional structural elements for limiting the movement of the first blade link 250 . In this embodiment, the movement of the first blade coupling member 250 may be restricted by the combined relationship of the first blade coupling member 250 , the first blade 210 , and the first driving coupling member main body 246 .

In the discharge step P4 state, the first drive link main body 246 and the first blade link 250 are arranged to be inclined toward the front and lower side. In the discharge step P4 state, the second drive link main body 247 is arranged to face the rear side, and the second blade link 260 is arranged to face the rear lower side.

In the present embodiment, when the state of the discharge step P3 is changed to the state of the discharge step P4, the L1-L1' of the first vane link 250 can be rotated slightly more toward the air discharge direction side. When the state of the discharge step P3 is changed to the state of the discharge step P4, the L2-L2' of the second vane coupling 260 rotates slightly more toward the opposite side of the air discharge direction. When the state of the discharge step P3 is changed to the state of the discharge step P4, the DD' of the first drive link main body 246 rotates slightly more toward the air discharge direction side. An imaginary straight line connecting the first joint portion 216 and the second joint portion 217 is defined as BB'.

In the discharge step P4, D-D' and BB' are connected as a straight line and form an included angle of 180 degrees.

From the discharge step P1 to the discharge step P3, D-D' and BB' form an included angle within 180 degrees, in the discharge step P4 an angle of 180 degrees is formed, and in the discharge steps P5 and P6 Form an included angle of more than 180 degrees.

<Spit Step P5>

In the discharge step P4 state, the drive link 240 can be rotated in a second direction (counterclockwise in the drawings of this embodiment) opposite to the first direction, thereby forming the discharge step P5.

In the state of spouting step P5, the blade module 200 can provide inclined wind that is spouted further downward than when spouting step P4. The oblique wind of the discharge step P5 is discharged to the lower side than the oblique wind of the discharge step P4.

Compared with the discharge step P4, in the discharge step P5, the first vane 210 and the second vane 220 are both adjusted to be slightly more toward the lower side.

In the discharge step P5, the interval S5 between the end 222a on the front side of the second vane 220 and the end 212b on the rear side of the first vane 210 is wider than the interval S4 in the state of the discharge step P4. open.

When progressing from the discharge step P4 to P5, the distance between the end 222a on the front side of the second vane 220 and the end 212b on the rear side of the first vane 210 becomes further. In the discharge step P5, the first vane 210 and the second vane 220 are arranged more vertically than in the case of P4.

When the state is changed from the discharge step P4 to the discharge step P5, the front end 222a of the second vane 220 is further lowered, and the rear end 212b of the first vane 210 is further raised.

In the discharge step P5, the front end 222a of the second vane 220 is located at a lower position than in the discharge step P4, and the rear end 212b of the first vane 210 is located in the discharge step P4. higher position.

When progressing from the discharge step P4 to P5, the second vane 220 rotates at the home position with the second vane shaft 221 as the center. When proceeding from the discharge step P4 to P5, the first engaging portion 216 of the first blade 210 stays at a nearly original position, and the second engaging portion 217 takes the first engaging portion 216 as the center to move toward the first direction (clockwise direction). ) to rotate slightly more.

That is, when going from the discharge step P4 to P5, the first vane 210 hardly moves, but rotates at the original position with the first engaging portion 216 as the center.

When progressing from the discharge step P4 to P5, the first vane 210 rotates slightly more in the first direction (clockwise direction) with the first engaging portion 216 as the center. When progressing from the discharge step P4 to P5, the second vane 220 rotates slightly more in the first direction (clockwise direction).

When the discharge step P4 goes to P5, the front end 222a of the second vane 220 rotates slightly more in the first direction (clockwise) as the second vane link 220 descends.

When changing from the discharge step P4 to the discharge step P5, the rotation directions of the first vane 210 and the second vane 220 will be the same.

When changing from the discharge step P4 to the discharge step P5, the 1-1st vane link shaft 251 may be positioned further forward than the 1-2nd vane link shaft 252 .

In the discharge step P5, the vane motor 230 rotates by 105 degrees (P5 rotation angle), and the first vane 210 forms an inclination of approximately 44.1 degrees as the vane motor 230 rotates (the first vane P5 inclination). , the second blade 220 forms an inclination of approximately 72.3 degrees (the inclination of the second blade P5).

The positional relationship of the shafts forming the rotation center of each link in the discharge step P5 will be described below.

Similar to the discharge step P4, in the discharge step P5, the second joint portion 217 and the first joint portion 216 of the first vane 210 are disposed inclined forward in the discharge direction of the air.

When viewed from the side, the third joint portion 226 of the second blade 220 is arranged at the rearmost position, the first joint portion 216 is arranged at the frontmost position, and the second joint portion 217 is arranged between the first joint portion 216 and the first joint portion 216. between the three joints 226 .

Taking the discharge step P5 as a reference, the third engaging portion 226 moves slightly further downward, and the second engaging portion 217 of the first blade link 250 moves in the first direction (clockwise) with the first engaging portion 216 as the center. to rotate.

In the discharge step P5, the second joint portion 217 is arranged to protrude toward the 1-2 blade joint shaft 252 side on the basis of a virtual straight line connecting the core joint shaft 243 and the first joint portion 216. .

In the discharge step P5 state, the arrangement of the respective shafts in the drive coupling 240 , the first blade coupling 250 , and the second blade coupling 260 is similar to the discharge step P4 state.

The first drive link shaft 241 , the 1-1st blade link shaft 251 , and the 2-1st blade link that rotate with the operation of the drive link 240 , the first blade link 250 , and the second blade link 260 The relative height of shaft 261 will change.

When the state of the discharge step P4 is changed to the state of the discharge step P5, the first drive link shaft 241 is raised, and the 2-1st vane link shaft 261 is lowered. Accordingly, in the discharge step P5, the first drive link shaft 241 is positioned slightly higher than the 2-1st blade link shaft 261.

When the state is changed from the discharge step P4 to the discharge step P5, the second engaging portion 217 rotates around the core link shaft 243, and the second engaging portion 217 is slightly closer to the 1-2 blade link shaft 252. to rotate.

In the discharge step P4, the core link shaft 243, the first drive link shaft 241, and the 1-1st blade link shaft 251 are arranged in a row, and in the discharge step P5, the core link shaft 243. The first drive coupling shaft 241 and the 1-1 blade coupling shaft 251 form an obtuse angle of 180 degrees or more (based on DD').

In the discharge step P5 state, the 2-2 blade link shaft portion 262 is located at a lower position than the core link shaft 243 . When proceeding from the discharge step P1 to the discharge step P6, the angle formed by the core coupling shaft 243, the 2-2 blade coupling shaft portion 262 and the third joint portion 226 will gradually increase.

However, when proceeding from the discharge step P1 to the discharge step P6, the angle formed by the core coupling shaft 243, the 2-2 blade coupling shaft portion 262 and the third engaging portion 226 is formed within 180 degrees.

When changing from the discharge step P4 state to the discharge step P5 state, the 2-1 vane link shaft 261 moves slightly further to the rear side than the 2-2 vane link shaft portion 262, and is located in the third engagement between the portion 226 and the core coupling shaft 243 .

The positions of the first vane 210 and the second vane 220 in the state of the discharge step P5 are similar to those of the discharge step P4 with reference to the suction panel 320 or the discharge port 102 .

Next, the relative position and direction of each link in the state of the discharge step P5 will be described below.

When the state is changed from the discharge step P4 to the discharge step P5, the first vane link 250 and the second vane link 260 are arranged in directions opposite to each other. When the state is changed from the discharge step P4 to the discharge step P5, the first vane link 250 may hardly rotate, and only the second vane link 260 may rotate further toward the rear side.

In the discharge step P5 state, the arrangement of the first drive coupling body 246 , the first blade coupling 250 , and the second blade coupling 260 is similar to the discharge step P4 state.

In the present embodiment, when the state of the discharge step P4 is changed to the state of the discharge step P5, the L1-L1' of the first vane link 250 can be rotated to the opposite side of the air discharge direction. When the state of the discharge step P4 is changed to the state of the discharge step P5, the L2-L2' of the second vane link 260 rotates slightly more toward the opposite side of the air discharge direction. When the state of the discharge step P4 is changed to the state of the discharge step P5, the DD' of the first drive link main body 246 is rotated to the side in the discharge direction of the air.

In the ejection step P5, the angle between D-D' and BB' is formed as an obtuse angle.

The front end 212a of the first vane moves in the air discharge direction (front side) when the state of the discharge step P1 is advanced to the discharge step P4, and when the state of the discharge step P4 is advanced to the discharge step P6, the The front end 212a of one blade moves to the opposite side (rear side) of the air discharge direction.

Accordingly, when the state of the discharge step P4 is advanced to the discharge step P6, the first vane 210 can be arranged slightly more vertically.

<Spit Step P6>

In this embodiment, the state of the modular blade 200 in the spouting step P6 is defined as vertical wind.

The vertical wind does not mean that the first blade 210 and the second blade 220 constituting the modular blade 200 are arranged vertically, but means that the air discharged from the discharge port 102 is discharged to the lower side of the discharge port 102 .

In the discharge step P5 state, the drive link 240 can be rotated in a second direction (counterclockwise in the drawing of this embodiment) opposite to the first direction, thereby forming the discharge step P6. In the discharge step P6, the flow of the discharge air in the horizontal direction is minimized and the flow in the vertical direction is maximized. The vertical wind of the discharge step P6 discharges the air further to the lower side than the inclined wind of the discharge step P5.

Compared with the discharge step P5, in the discharge step P6, the first vane 210 and the second vane 220 are both adjusted to be slightly more toward the lower side.

When the discharge step P6 is provided, the rear end 222b of the second vane is positioned above the discharge port, and the front end 222a of the second vane is positioned below the discharge port The end 212b on the rear side of the first vane is located higher than the end 222a on the front side of the second vane, and is located higher than the discharge port. And the front end 212a of the said 1st blade|wing is located in the position lower than the front side end 222a of the said 2nd blade|wing.

When the discharge step P6 is provided, the rear end 212b of the first vane is arranged so as to face the discharge port 102 .

In the discharge step P6, the interval S6 between the end 222a on the front side of the second vane 220 and the end 212b on the rear side of the first vane 210 is wider than the interval S5 in the state of the discharge step P5 open.

When progressing from the discharge step P5 to P6, the distance between the end 222a on the front side of the second vane 220 and the end 212b on the rear side of the first vane 210 becomes larger. In the discharge step P6, the first vane 210 and the second vane 220 are arranged more vertically than in the case of P5.

When the state is changed from the discharge step P5 to the discharge step P6, the front end 222a of the second vane 220 is further lowered, and the rear end 212b of the first vane 210 is further raised.

In the discharge step P6, the front end 222a of the second vane 220 is located at a lower position than in the discharge step P5, and the rear end 212b of the first vane 210 is located in the discharge step P5. higher position.

When progressing from the discharge step P5 to P6, the second vane 220 rotates at the home position with the second vane shaft 221 as the center. When proceeding from the discharge step P5 to P6, the first engaging portion 216 of the first blade 210 stays at the nearly original position, and the second engaging portion 217 takes the first engaging portion 216 as the center to move toward the first direction (clockwise direction). ) to rotate slightly more.

That is, when it progresses from the discharge step P5 to P6, the said 1st blade|wing 210 can move to a rear side. When progressing from the discharge step P5 to P6, the first vane 210 rotates slightly more in the first direction (clockwise direction) with the first engaging portion 216 as the center. Therefore, the front end 212a of the first vane 210 faces The rear side moves.

When progressing from the discharge step P5 to P6, the second vane 220 rotates slightly more in the first direction (clockwise direction). When the discharge step P5 goes to P6, the front end 222a of the second vane 220 rotates slightly more in the first direction (clockwise) as the second vane link 220 descends.

When changing from the discharge step P5 to the discharge step P6, the rotation directions of the first vane 210 and the second vane 220 will be the same.

In the discharge step P6, the vane motor 230 rotates by 110 degrees (P6 rotation angle), and as the vane motor 230 rotates, the first vane 210 forms an inclination of approximately 56.7 degrees (the first vane P6 inclination). , the second blade 220 forms an inclination of approximately 74 degrees (the inclination of the second blade P6).

The positional relationship of the shafts forming the rotation center of each link in the discharge step P6 will be described below.

Similar to the discharge step P5, in the discharge step P6, the second joint portion 217 and the first joint portion 216 of the first vane 210 are disposed inclined forward in the air discharge direction.

When viewed from the side, the third joint portion 226 of the second blade 220 is arranged at the rearmost position, the first joint portion 216 is arranged at the frontmost position, and the second joint portion 217 is arranged between the first joint portion 216 and the first joint portion 216. between the three joints 226 .

Taking the discharge step P6 as a reference, the third engaging portion 226 moves slightly further downward, and the second engaging portion 217 of the first blade link 250 moves in the first direction (clockwise) with the first engaging portion 216 as the center. to rotate.

In the discharge step P6, the second joint portion 217 is arranged to project slightly more toward the 1-2 blade joint shaft 252 side based on the virtual straight line connecting the core joint shaft 243 and the first joint portion 216. .

In the discharge step P6 state, the arrangement of the respective shafts in the drive coupling 240 , the first blade coupling 250 , and the second blade coupling 260 is similar to the discharge step P5 state.

The first drive link shaft 241 , the 1-1st blade link shaft 251 , and the 2-1st blade link that rotate with the operation of the drive link 240 , the first blade link 250 , and the second blade link 260 The relative height of shaft 261 will change.

When the ejection step P6 is provided, the rear end 212 b of the first vane is positioned below the core link shaft 243 and further forward than the core link shaft 243 . When the discharge step P6 is provided, the front end 212a of the first vane is positioned more rearward than the front edge 102a of the discharge port.

When the state of the discharge step P5 is changed to the state of the discharge step P6, the first drive link shaft 241 is raised, and the 2-1st vane link shaft 261 is lowered. Thereby, in the discharge step P6, the 1st drive link shaft 241 is located in the position higher than the 2-1st blade link shaft 261.

When the ejection step P6 is provided, the 2-2 blade coupling shaft portion 262 is located at a lower position than the core coupling shaft 243, and the 2-2 blade coupling shaft portion is located at a lower position than the core coupling shaft 243. 262, the first drive coupling shaft 241 is located at a lower position, compared with the first drive coupling shaft 241, the 2-1 blade coupling shaft 261 is located at a lower position, and The 1-1 blade coupling shaft 251 is located at a lower position than the 2-1 blade coupling shaft 261 .

When the state is changed from the discharge step P5 to the discharge step P6, the second engaging portion 217 rotates around the core link shaft 243, and the second engaging portion 217 is slightly closer to the 1-2 blade link shaft 252. to rotate.

When viewed from the side, at least a portion of the second engaging portion 217 may overlap the first blade coupling body 255 in the discharge step P6. Since the second engaging portion 217 is moved to the position overlapping the first blade coupling body 255, the first blade 210 can be arranged more vertically.

However, in the discharge step P6, the second engaging portion 217 does not move forward beyond L1-L1'. The second engagement portion 217 does not move further forward than the first blade link body 255 . In the case where the second engaging portion 217 is moved forward excessively, even if the vane motor rotates in the first direction (clockwise), it may not be able to return to the original position.

In order to prevent the over-rotation of the drive link 240 as described above, in the discharge step P6, the first drive link main body 246 and one side end 270a of the stopper 270 are caused to interfere with each other. The first drive coupling body 246 is supported by the stop 270 and further rotation thereof will be restricted.

In the discharge step P6, the core link shaft 243, the first drive link shaft 241, and the 1-1st blade link shaft 251 form an obtuse angle of 180 degrees or more (clockwise based on DD').

When changing from the discharge step P5 to the discharge step P6, the 1-1st vane link shaft 251 may be positioned further forward than the 1-2nd vane link shaft 252 .

In the discharge step P6 state, the 2-2 blade coupling shaft portion 262 is arranged on the lower side of the core coupling shaft 243, the second engaging portion 217 is arranged on the lower side of the 2-2 blade coupling shaft portion 262, and the The third engaging portion 226 is arranged on the lower side of the second engaging portion 217 , and the first engaging portion 216 is arranged on the lower side of the third engaging portion 226 .

When changing from the discharge step P5 state to the discharge step P6 state, the 2-1 vane link shaft 261 moves slightly further to the rear side than the 2-2 vane link shaft portion 262, and is located in the third engagement between the portion 226 and the core coupling shaft 243 .

Next, the relative position and direction of each link in the state of the discharge step P6 will be described below.

When the state is changed from the discharge step P5 to the discharge step P6, the first vane link 250 and the second vane link 260 are arranged in directions opposite to each other. When the state is changed from the discharge step P5 to the discharge step P6, the first vane link 250 may hardly rotate, and only the second vane link 260 may rotate further toward the rear side.

In the discharge step P6 state, the arrangement of the first drive coupling body 246 , the first blade coupling 250 , and the second blade coupling 260 is similar to the discharge step P5 state.

When the discharge step P6 is provided, the 2-1st vane link shaft 261 is positioned further forward than the 2-1st vane link shaft 261 compared to the second vane shaft 221 , the 2-2 blade coupling shaft portion 262 is located in a further forward position, compared with the 2-2 blade coupling shaft portion 262, the core coupling shaft 243 is located in a further forward position, and Compared with the core coupling shaft 243 , the first drive coupling shaft 241 is located at a more forward position, and compared with the first driving coupling shaft 241 , the 1-1 blade coupling shaft 251 located further forward.

In the present embodiment, when the state of the discharge step P5 is changed to the state of the discharge step P6, the L1-L1' of the first vane link 250 can rotate slightly more toward the opposite side of the air discharge direction. When the state of the discharge step P5 is changed to the state of the discharge step P6, the L2-L2' of the second vane coupling 260 rotates slightly more toward the opposite side of the air discharge direction. When changing from the discharge step P5 state to the discharge step P6 state, the DD' of the first drive link main body 246 can be rotated slightly more to the opposite side of the air discharge direction.

The obtuse angle, which is the included angle between D-D' and BB' in the discharge step P6, is larger than the obtuse angle, which is the included angle between DD' and BB', in the discharge step P5.

When the state of the discharge step P1 proceeds to the discharge step P4, the front end 212a of the first vane moves in the air discharge direction (front side).

When progressing from the state of the discharge step P1 to the discharge step P4, the first blade coupling member 250 rotates in the second direction (counterclockwise direction), and when the state of the discharge step P4 is progressed to the discharge step P6, the first The blade coupling 250 rotates in a first direction (clockwise).

As a result, when the state of the discharge step P1 is advanced to the discharge step P4, the front end 212a of the first vane rotates in the second direction and rises. However, when the state of the discharge step P4 is advanced to the discharge step P6, the front end 212a of the first vane rotates in the first direction and descends. That is, based on the discharge step P4, the movement of the first blade 210 is changed.

When the state of the discharge step P4 proceeds to the discharge step P6, the first vane 210 can be arranged more vertically. In the discharge step P6 state, the rear end 212b of the first vane 210 is positioned further forward than the core link shaft 243 .

When the blade module 200 forms a vertical wind in the discharge step P6, the first blade 210 and the second blade 220 are separated to the greatest extent.

In the case of the discharge step P6, one or more of the second engaging portion 217 or the first drive link shaft 241 overlaps the first blade link 250 when viewed from the side of the blade module 200 .

In the case of the discharge step P6, when viewed from the side of the blade module 200, one or more of the second engaging portion 217 or the first drive coupling shaft 241 is located on the line L1-L1' of the first blade coupling 250 on or behind.

In the case of the discharge step P6, the rear end 212b of the first blade 210 is positioned inside the discharge port 102 and higher than the outer surface of the side cover 314 when viewed from the side of the blade module 200 . Since the rear end 212b of the first vane 210 is positioned inside the discharge port 102, the air in the discharge port 102 can be guided more vertically.

<Dynamic cooling mode>

The dynamic cooling mode of the ceiling-type indoor unit of the present embodiment will be described with reference to FIGS. 1 to 4 , FIG. 15 , and FIG. 23 .

The indoor unit of this embodiment includes: a first vane module 201, which is arranged at the edge of the suction inlet 101 based on the suction inlet 101; and a third blade module 203, which is arranged at the edge of the suction inlet 101, The suction port 101 is arranged on the opposite side of the first vane module 201 based on the reference; the second vane module 202 is arranged on the edge of the suction port 101 and is arranged on the opposite side of the first vane module 202 based on the suction port 101 The module 201 and the third vane module 203 are respectively arranged to form an included angle of 90 degrees; the fourth vane module 204 is arranged on the edge of the suction port 101 and is arranged on the second side of the suction port 101 based on the suction port 101 Opposite side of blade module 202 .

When the indoor unit is viewed from the bottom, it includes: a first blade module 201, which is arranged at the edge of the suction port 101, and is arranged at twelve o'clock with the suction port 101 as a reference; a second blade module 202, which is arranged at the 12 o'clock direction. The edge of the suction port 101 is arranged at the three o'clock direction with the suction port 101 as the reference; the third vane module 203 is arranged at the edge of the suction port 101 and arranged at the six o'clock direction with the suction port 101 as the reference Point direction; the fourth blade module 204 is arranged at the edge of the suction port 101, and is arranged at the nine o'clock direction with the suction port 101 as a reference.

For the convenience of description, the discharge port where the first blade module 201 is arranged is defined as the first discharge port 102-1, and the discharge port where the second blade module 202 is arranged is defined as the second discharge port 102-2. The discharge port having the third vane module 203 is defined as the third discharge port 102-3, and the discharge port where the fourth vane module 204 is arranged is defined as the fourth discharge port 102-4.

When viewed from the bottom, the first blade module 201 is arranged in the twelve o'clock direction and expels air in the 12 o'clock direction, the second blade module 202 is arranged in the three o'clock direction and expels air in the 3 o'clock direction, and the third blade module 203 The fourth vane module 204 is arranged in the direction of six o'clock and ejects air in the direction of nine o'clock, and is arranged in the direction of six o'clock.

When viewed from the bottom, the air discharge directions of the first blade module 201 and the third blade module 203 are opposite to each other. The air discharge directions of the second blade module 202 and the fourth blade module 204 are opposite to each other.

When viewed from the bottom, the air discharge direction of the first blade module 201 is orthogonal to the air discharge direction of the second blade module 202 and the fourth blade module 204 . The air discharge direction of the third blade module 203 is orthogonal to the air discharge direction of the second blade module 202 and the fourth blade module 204 .

The air discharge direction of the first blade module 201 is defined as the first discharge direction 291, the air discharge direction of the second blade module 202 is defined as the second discharge direction 292, and the air discharge direction of the third blade module 203 is defined as the third discharge direction. The discharge direction 293 defines the air discharge direction of the fourth blade module 204 as the fourth discharge direction 294 .

Dynamic cooling mode is used to cool the room in less time. Conventionally, when operating in the powerful mode, the target temperature is set to the minimum temperature (generally, 18 degrees), and the indoor ventilation fan is operated to the maximum to supply the discharge air to the room at the maximum wind speed.

In this embodiment, the dynamic cooling mode sets the target temperature to the lowest temperature (generally, 18 degrees) as in the past, operates the indoor ventilation fan to the maximum extent, and controls each blade module to generate indoor air flow, and the indoor temperature can be lowered more rapidly by such an operation.

Dynamic cooling mode may be suitable for places where the temperature needs to be lowered rapidly. The low-temperature exhaled air may induce unpleasant sensations such as chills to the user, but the dynamic cooling mode is suitable for use in drugstores, convenience stores, cake shops, etc. that only stay for a short time.

In the places where customers go out after staying for a short period of time, customers come in and out frequently and there is a lot of inflow of outside air, which is more suitable for the use of dynamic cooling mode. Since the dynamic cooling mode can provide low exhaled air to customers exposed to high outside air temperatures, customer comfort can be enhanced. In addition, the dynamic cooling mode has an advantage that the indoor space can be rapidly cooled in a short time.

In the control method of the ceiling-type indoor unit of the present embodiment, control is performed so that, when cooling is performed, each pair of blade modules of the two pairs of blade modules discharges air in directions different from each other.

In particular, a pair of the first blade module 201 and the third blade module 203 and the other pair of the second blade module 202 and the fourth blade module 204, which are arranged to face each other, discharge air in directions different from each other.

When viewed from the bottom, the first blade module 201 , the second blade module 202 , the third blade module 203 , and the fourth blade module 204 are arranged at intervals of 90 degrees with respect to the suction port 101 .

When viewed from the bottom, with the suction port 101 as the center, the discharge direction of the first blade module 201 and the discharge direction of the second blade module 202 form an included angle of 90 degrees, and the discharge direction of the second blade module 202 and the third blade module 203 form an included angle of 90 degrees. The discharge direction of the third blade module 203 and the discharge direction of the fourth blade module 204 form an included angle of 90 degrees, and the discharge direction of the fourth blade module 204 and the discharge direction of the first blade module 201 form an included angle of 90 degrees. The directions form an included angle of 90 degrees.

When viewed from the bottom, the first blade module 201 and the third blade module 203 are located on opposite sides of each other with the suction port 101 as a reference. When viewed from the bottom, the second vane module 202 and the fourth vane module 204 are located on opposite sides of each other with the suction port 101 as a reference.

In this embodiment, with the suction port 101 as a reference, the first blade module 201 and the third blade module 203 arranged to face each other are defined as a first discharge pair, and the first blade module 201 and the third blade module 203 arranged to face each other The second blade module 202 and the fourth blade module 204 are defined as a second discharge pair.

In the dynamic cooling mode of this embodiment, the indoor target temperature can be set to 18 degrees, and the indoor ventilation fan is set to weak, medium, strong, and medium to strong. The indoor target temperature of the dynamic cooling mode or the speed of the indoor ventilation fan can be changed in various ways.

The control method of the ceiling-type indoor unit in this embodiment includes: step S10, turning on (ON) the dynamic cooling mode; resetting the automatic swing step S20, after the step S10, making the first blade module 201 and the third blade module The first discharge pair formed by 203 and the second discharge pair formed by the second blade module 202 and the fourth blade module 204 operate simultaneously; step S30, it is judged whether the reset automatic swing step S20 exceeds the reset automatic time (this implementation). In the first dynamic cooling step S40, if the step S30 is satisfied, the first discharge pair is operated at the discharge step P2, and the second discharge pair is operated at the strong cooling discharge step ; Step S50, judging whether the first dynamic cooling step S40 exceeds the first dynamic time (5 minutes in this embodiment); the first automatic swing step S60, in the case of satisfying the step S50, make the first dynamic time The discharge pair and the second discharge pair operate simultaneously; step S70, judging whether the first automatic swing step S60 exceeds the first automatic time (5 minutes in this embodiment); the second dynamic cooling step S80, when the step S70 is satisfied In the case of , make the first discharge pair operate with the strong cooling discharge step, and make the second discharge pair operate with the discharge step P2; step S90, determine whether the second dynamic cooling step S80 exceeds the second dynamic time (5 minutes in this embodiment); the second automatic swing step S100, in the case of satisfying the step S90, the first discharge pair and the second discharge pair are operated at the same time; step S110, determine the first discharge pair 2. Whether the automatic swinging step S100 exceeds the second automatic time (5 minutes in this embodiment); step S120, if the step S110 is satisfied, determine whether the dynamic cooling mode is turned off (OFF); In the case of S120, the step of the dynamic cooling mode is ended.

The first discharge pair and the second discharge pair are performed in the order of "same operation→different operation→same operation→different operation→same operation".

In this embodiment, for the first discharge pair, press "Reset automatic swing (step S20) → discharge step P2 (step S40) → first automatic swing (step S60) → strong cooling discharge step P4.5 (step S80) )→the second automatic swing (step S100)”.

In this embodiment, for the second discharge pair, press “Reset automatic swing (step S20) → strong cooling discharge step P4.5 (step S40) → first automatic swing (step S60) → discharge step P2 (step S80) )→the second automatic swing (step S100)”.

The first blade module, the second blade module, the third blade module and the fourth blade module may be set to spit out one of the steps P1 to P6.

Taking the horizontal as a reference, the inclination of each of the first blades satisfies "0 degree < the first blade inclination of the discharge step P1 < the first blade inclination of the discharge step P2 < the first blade inclination of the discharge step P3 Degree<first blade inclination of discharge step P4<first blade inclination of discharge step P5<first blade inclination of discharge step P6<90 degrees".

Taking the horizontal as a reference, the inclination of each second blade satisfies "0 < the second blade inclination of the discharge step P1 < the second blade inclination of the discharge step P2 < the second blade inclination of the discharge step P3 <The second blade inclination of the discharge step P4<the second blade inclination of the discharge step P5<the second blade inclination of the discharge step P6<90 degrees".

In addition, in each of the discharge steps, the inclination of the second vane is always set to be larger than the inclination of the first vane.

The user can select the dynamic cooling mode (step S10 ) through a wireless remote control (not shown) or a wired remote control (not shown). In this embodiment, the dynamic cooling mode is selected by the user, but different from this embodiment, the dynamic cooling mode can also operate automatically under certain conditions. For example, the dynamic cooling mode may operate automatically when the indoor unit is switched from an off state to an on state.

In the present embodiment, in the case of a wireless remote controller, when the user selects the powerful mode, the dynamic cooling mode may be set. In the case of a wired remote control, the dynamic cooling mode can be set when strong cooling is selected.

In the reset automatic swing step S20, the first blade module 201, the second blade module 202, the third blade module 203 and the fourth blade module 204 are all operated in the same manner. In the reset automatic swing step S20, the control unit makes the first blade module 201, the second blade module 202, the third blade module 203 and the fourth blade module 204 reciprocate in a specific interval.

In the present embodiment, in the reset automatic swing step S20, after changing all the blade modules 200 in order from the above-mentioned discharge step P2 to the discharge step P5, the change is made in the reverse order again, and the process is repeated. action.

Therefore, when the automatic swing step S20 is reset, the first blade module 201 , the second blade module 202 , the third blade module 203 and the fourth blade module 204 operate the blade motor 230 ,

After running in the order of "spit out step P2→spit out step P3→spit out step P4→spit out step P5", follow the reverse order again "spit out step P5→spit out step P6→spit out step P3→spit out step P5" The sequence of step P2” is run. A cycle as described above is defined as an automatic swing cycle.

In the automatic swing cycle, the discharge step P1 and the discharge step P6 are excluded.

The reset automatic swing step S20 operates during the reset automatic time period. In this embodiment, the reset automatic time is set to 10 minutes. Different from this embodiment, the reset automatic time can be changed in various ways. The reset automatic time is preferably set larger than the first dynamic time. Before the first dynamic cooling step, the user is preferably supplied with sufficient cold air to satisfy the user's demand.

In the reset automatic swing step S20, the refrigerated air is expelled to the periphery of the indoor unit through the first vane module 201, the second vane module 202, the third vane module 203 and the fourth vane module 204. At this time, the discharged air cooled in the reset automatic swing step S20 does not target a specific position or a specific distance.

In the reset automatic swing step S20, the cooled air is discharged around the indoor unit in a reciprocating interval from the discharge step P2 to the discharge step P5, and the indoor air and the cooled air are randomly mixed.

That is, the automatic swing step has the effect of randomly mixing the indoor air and the cooled discharge air, and making the temperature of the entire indoor air more quickly uniform.

Steps S20 and S30 are control steps for equalizing the air around the indoor unit. Before the dynamic cooling mode operation, steps S20 and S30 are executed to mix the air around the indoor unit and reduce the temperature deviation around the indoor unit.

When step S30 is satisfied, step S40 is performed. When step S30 is not satisfied, it returns to step S20.

Step S40 is the first dynamic cooling step. Different from the reset automatic swing step S20, the first dynamic cooling step S40 has the directed point of the cooled exhaled air.

In the reset automatic swing step S20, the supply target or supply purpose of the discharge air by the first discharge pair and the second discharge pair is the same, and in the first dynamic cooling step S40, the first discharge pair and the second discharge pair The supply target or supply purpose is different.

Therefore, in the first dynamic cooling step S40, the first discharge pair and the second discharge pair are operated in different ways, respectively. In this embodiment, in the first dynamic cooling step S40, the first discharge pair is set as the discharge step P2, and the second discharge pair is set as the strong cooling discharge step.

In the first dynamic cooling step S40, after the first discharge pair is changed to the discharge step P2, this state is maintained. In the first dynamic cooling step S40, after the second discharge pair is changed to a strong cooling discharge step, this state is maintained.

The discharge step P2 will be able to blow the discharge air farthest in addition to the horizontal wind (the discharge step P1). In the discharge step P2, the indirect wind can be provided to the user.

On the other hand, the second discharge pair provides direct wind for directly supplying the cooled air to the user. The strong cooling discharge step may be one of the discharge steps P3 to P6 which are arranged more vertically than the discharge step P2.

The strong refrigeration discharge steps are preferably between the discharge steps P4 to P6. In order to rapidly cool the indoor air, the ejected air is preferably provided as oblique wind rather than as horizontal or vertical air. In particular, since the first discharge pair provides indirect wind close to horizontal wind, the discharge air is supplied to a long distance, and the second discharge pair is provided closer to the discharge air.

In the strong refrigeration discharge step, the inclination of the first blade may be formed between 35 degrees and 57 degrees.

In this embodiment, instead of selecting the strong cooling discharge step as one of the discharge steps P1 to P6, an additional discharge step will be arranged in the middle of the discharge steps P4 to P6. Therefore, the discharge step P4.5 is arranged between the discharge steps P4 to P5, and is defined as a strong cooling discharge step.

Different from this embodiment, the above-mentioned discharge step P4 or P5 can be selected for the strong cooling discharge step. The reason for selecting the discharge step P4 or P5 is that, among the discharge steps other than horizontal wind and vertical wind, the discharge step has a large difference in the air discharge direction from P2.

In the strong cooling discharge step P4.5, the vane motor 230 rotates by 102 degrees (P4.5 rotation angle). As the vane motor 230 rotates, the first vane 210 and the second vane 220 form an inclination in the middle of the discharge steps P4 to P5. Thus, the first blade 210 forms an inclination between 35 degrees and 44 degrees, and the second blade 220 forms an inclination between approximately 70 degrees and 72 degrees.

In the first dynamic cooling step S40, the vane motor 230 of the first discharge pair rotates by 78 degrees (P2 rotation angle), and the vane motor of the second discharge pair rotates by 102 degrees (P4.5 rotation angle).

In step S40, the first discharge pair provides the inclined wind close to the horizontal wind, thereby providing the discharge air to a long distance. The second discharge pair arranged so as to be orthogonal to the discharge direction of the first discharge pair provides the oblique wind, thereby supplying the discharge air to a short distance.

For example, in the first dynamic cooling step S40, when the first discharge pair supplies air to a distance from the indoor unit through the discharge step P2, the cooled air is discharged at a slow angle, and the discharged air is The density of the air decreases gradually. When the air discharged from the first discharge pair gradually descends and reaches a distance from the indoor unit, the indoor air is pushed by the cooled discharged air and flows to the periphery.

In the first dynamic cooling step S40, when the first discharge pair supplies the discharge air with indirect air through the discharge step P2, the second discharge pair uses the strong cooling discharge step P4.5 to make the cooled air flow away from the indoor unit. Flow from near to far. At this time, since the air discharged from the second discharge pair faces the ground more than the air discharged from the first discharge pair, after reaching the ground near the indoor unit, it will flow along the ground to the far side. When the air discharged from the second discharge pair gradually descends and reaches a distance from the indoor unit, the indoor air is pushed by the cooled discharged air and flows to the periphery.

As described above, when the first discharge pair supplies the discharge air to a long distance, and the second discharge pair arranged so as to be orthogonal to each other supplies the discharge air to a short distance, the circulation of indoor air can be promoted. That is, when the discharge air is discharged in directions different from each other, the cooled air and the indoor air can be mixed more quickly when a distance difference and a height difference are formed.

Accordingly, when the cooled discharge air is supplied in the first dynamic cooling step S40, a temperature deviation may occur around the indoor unit. In particular, with the indoor unit as a reference, not only a temperature deviation corresponding to the distance in the horizontal direction but also a large temperature deviation corresponding to the height in the vertical direction occurs. In addition, the temperature deviation between the first and second discharge opposing directions may also be greatly formed.

This is a phenomenon that inevitably occurs in the first dynamic cooling step S40 because the targets of the first discharge pair and the second discharge pair are different. In order to eliminate such a situation, the first automatic swing step S60 will be arranged.

In step S50, the operation time of step S40 is judged. When step S50 is satisfied, step S60 is performed, and when step S50 is not satisfied, the process returns to step S40.

The step S60 is the first automatic swinging step. The first automatic swing step is the same as the reset automatic swing step, but the run time is different. The first automatic swing step S60 operates in an automatic swing cycle.

In the first automatic swing step S60, the first blade module 201, the second blade module 202, the third blade module 203 and the fourth blade module 204 operate the blade motor 230,

After changing the order according to the order of "spit out step P2 → spit out step P3 → spit out step P4 → spit out step P5", press "spit out step P5 → spit out step P6 → spit out step P3" in the reverse order again. →The order of the discharge step P2" is changed sequentially.

The automatic swing cycle of the first automatic swing step S60 also excludes the discharge step P1 and the discharge step P6. The operation time of the first automatic swinging step S60 is set to the first automatic time (5 minutes in this embodiment). In this embodiment, the operation time of the first automatic swing step S60 is the same as the first dynamic time.

In the first automatic swing step S60, the cooled air is discharged around the indoor unit in a reciprocating interval from the discharge step P2 to the discharge step P5, and the indoor air and the cooled air are randomly mixed. The first automatic swinging step S60 has the effect of randomly mixing the indoor air and the cooled discharge air, and uniformizing the temperature of the entire indoor air more quickly.

The first automatic swing step S60 eliminates the temperature deviation formed by the first dynamic cooling step S40.

When step S70 is satisfied, step S80 is performed. When step S70 is not satisfied, it returns to step S60.

Step S80 is the second dynamic cooling step.

In the second dynamic cooling step S80, the first discharge pair and the second discharge pair are operated in the opposite manner to the first dynamic cooling step S40. Therefore, in the second dynamic cooling step S80, the first discharge pair is set as the strong cooling discharge step, and the second discharge pair is set as the discharge step P2.

In the second dynamic cooling step S80, after the first discharge pair is changed to a strong cooling discharge step, this state is maintained. In the second dynamic cooling step S80, after the second discharge pair is changed to the discharge step P2, this state is maintained.

Contrary to the first dynamic cooling step S40, the second dynamic cooling step S80 provides direct air through the first discharge pair, and provides indirect air through the second discharge pair.

In this embodiment, the strong cooling discharge step of the second dynamic cooling step S80 is the discharge step P4.5.

In the second dynamic cooling step S80, the vane motor of the first discharge pair rotates by 102 degrees (P4.5 rotation angle), and the vane motor 230 of the second discharge pair rotates by 78 degrees (P2 rotation angle).

By alternately operating the first dynamic cooling step S40 and the second dynamic cooling step S80, the air in the indoor space can be mixed more efficiently. In addition, by alternately operating the first dynamic cooling step S40 and the second dynamic cooling step S80, it is possible to minimize the dead space that the indoor air cannot reach.

In particular, since the indirect air and the direct air are alternately provided in the first dynamic cooling step S40 and the second dynamic cooling step S80, it is possible to minimize the dead space that the indoor air cannot reach.

Taking the first discharge pair as an example, in the first dynamic cooling step S40, the air is discharged far from the indoor unit through the discharge step P2. Subsequently, in the second dynamic cooling step S80, the air is discharged toward the vicinity of the indoor unit through the strong cooling discharge step P4.5. When the air is ejected as described above, the dead space in the ejection direction of the first blade module 201 and the third blade module 203 can be minimized.

At the same time, when the first discharge pair operates, the second discharge pair will operate in the opposite direction, and the second discharge pair discharges air near the indoor unit in the first dynamic cooling step S40, and in the second dynamic cooling step S80 Exhale air far away from the indoor unit. When the air is discharged as described above, the dead space in the discharge direction of the second blade module 202 and the fourth blade module 204 can be minimized.

For example, in the second dynamic cooling step S80, the first discharge pair causes the cooled air to flow from near to far from the indoor unit through the discharge step P4.5. At this time, since the air discharged from the first discharge pair faces the ground, after reaching the ground near the indoor unit, it will flow along the ground to the far side. When the air discharged from the first discharge pair gradually descends and reaches a distance from the indoor unit, the indoor air is pushed by the cooled discharged air and flows to the periphery.

When the second discharge pair supplies air far from the indoor unit through the discharge step P2, the cooled air is discharged at a slow angle, and the discharged air gradually decreases due to the density difference with the indoor air. When the air discharged from the second discharge pair gradually descends and reaches a distance from the indoor unit, the indoor air is pushed by the cooled discharged air and flows to the periphery.

As described above, in the first dynamic cooling step S40 and the second dynamic cooling step S80, since the air to be cooled is alternately supplied to the near and far places based on the horizontal distance from the indoor unit, the indoor air can be efficiently mixed.

In addition, in the first dynamic cooling step S40 and the second dynamic cooling step S80, since the cooled air is alternately supplied to the higher side and the lower side with reference to the vertical height, the indoor air can be efficiently mixed.

In step S90, it is judged whether the second dynamic time is exceeded (5 minutes in this embodiment), and if step S90 is satisfied, step S100 is executed. When step S90 is not satisfied, it returns to step S80.

Since the second automatic swinging step S100 is the same as the first automatic swinging step S60, a detailed description thereof will be omitted. Since step S110 is also the same as step S70, a detailed description thereof will be omitted. In this embodiment, the first automatic time of S70 and the second automatic time of S110 are the same.

The first dynamic time and the second dynamic time can be set to be the same, and accordingly, the air temperature around the indoor unit can be uniformly formed. When the 1st dynamic time and the 2nd dynamic time are arrange|positioned differently, the temperature in the direction of one of the 1st discharge pair or the 2nd discharge pair may become lower. At the same time, by setting the first automatic time and the second automatic time in the same manner, the ambient temperature of the indoor unit can be formed more uniformly.

In step S120, it is determined whether the dynamic cooling mode is turned off (OFF). In this embodiment, since the operation signal input by the user is received in the step S10 for driving, in the step S120, it is determined whether the user inputs an OFF signal of the dynamic cooling mode.

In this embodiment, even if the user inputs the dynamic cooling mode OFF (OFF) before step S120, step S120 will be determined after step S110. Different from this embodiment, the step S120 is configured between the steps S10 to S110 respectively, and the step S120 can also be determined after each step is completed. In this case, when the user inputs the dynamic cooling mode OFF (OFF), the dynamic cooling mode may be ended immediately after the ongoing step ends.

In the case where step S120 is not satisfied (in the case where the user does not input the dynamic cooling mode OFF (OFF)), the process returns to step S40.

A control method of the ceiling-type indoor unit according to the second embodiment of the present invention will be described with reference to FIG. 24 .

The control method of the ceiling-type indoor unit in this embodiment includes: step S10, turning on (ON) a dynamic cooling mode; a first dynamic cooling step S40, after the step S10, making the first discharge pair to discharge step P2 run, and make the second discharge pair operate with strong cooling discharge steps; step S50, determine whether the first dynamic cooling step S40 exceeds the first dynamic time (5 minutes in this embodiment); the first automatic swing step S60, Under the condition that the step S50 is satisfied, the first discharge pair and the second discharge pair are operated at the same time; in step S70, it is determined whether the first automatic swing step S60 exceeds the first automatic time (5 minutes in this embodiment) ); the second dynamic cooling step S80, in the case where the step S70 is satisfied, contrary to the step S40, the first discharge pair is operated in a step of strong cooling discharge, and the second discharge pair is made to discharge Step P2 operation; step S90, determine whether the second dynamic cooling step S80 exceeds the second dynamic time (5 minutes in this embodiment); the second automatic swing step S100, in the case of satisfying the step S90, make The first discharge pair and the second discharge pair operate simultaneously; step S110, judging whether the second automatic swing step S100 exceeds the second automatic time (5 minutes in this embodiment); step S120, when the satisfaction of the In the case of step S110, it is determined whether the dynamic cooling mode is turned off (OFF); if the step S120 is satisfied, the step of the dynamic cooling mode is ended.

Different from the first embodiment, steps S20 and S30 are omitted in this embodiment.

The first discharge pair and the second discharge pair are performed in the order of "different operation→same operation→different operation→same operation".

In this embodiment, the first discharge pair presses “discharge step P2 (step S40 ) → first automatic swing (step S60 ) → strong cooling discharge step P4.5 (step S80 ) → second automatic swing (step S100 ) )" sequence.

In this embodiment, the second ejection pair presses “Powerful cooling ejection step P4.5 (step S40) → first automatic swing (step S60) → ejection step P2 (step S80) → second automatic swing (step S100) )" sequence.

Steps S20 and S30 are control steps for equalizing the air around the indoor unit. In the first embodiment, before the dynamic cooling mode is operated, steps S20 and S30 are performed to mix the air around the indoor unit and reduce the temperature deviation around the indoor unit.

In this embodiment, steps S20 and S30 are omitted, and accordingly, the minimum one cycle driving time of the dynamic cooling mode is shortened. In the first embodiment, one cycle of the dynamic cooling mode takes 30 minutes. In this embodiment, by omitting steps S20 and S30, the first cycle time of the dynamic cooling mode can be shortened to 20 minutes.

The remaining features below are the same as those of the first embodiment, and thus detailed descriptions thereof will be omitted.

A control method of the ceiling-type indoor unit according to the third embodiment of the present invention will be described with reference to FIG. 25 .

The control method of the ceiling-type indoor unit in this embodiment includes: step S10, turning on (ON) the dynamic cooling mode; and a first dynamic cooling step S42, after the step S10, making the first discharge pair to discharge step P1 operation, and make the second discharge pair operate with strong cooling discharge steps; step S50, determine whether the first dynamic cooling step S42 exceeds the first dynamic time (5 minutes in this embodiment); the first automatic swing step S60, Under the condition that the step S50 is satisfied, the first discharge pair and the second discharge pair are operated at the same time; in step S70, it is determined whether the first automatic swing step S60 exceeds the first automatic time (5 minutes in this embodiment) ); the second dynamic cooling step S82, in the case that the step S70 is satisfied, contrary to the step S40, the first discharge pair is operated in a step of strong cooling discharge, and the second discharge pair is operated with a discharge step of Step P1 operation; step S90, judge whether the second dynamic cooling step S82 exceeds the second dynamic time (5 minutes in this embodiment); the second automatic swing step S100, in the case of satisfying the step S90, make The first discharge pair and the second discharge pair operate simultaneously; step S110, judging whether the second automatic swing step S100 exceeds the second automatic time (5 minutes in this embodiment); step S120, when the satisfaction of the In the case of step S110, it is determined whether the dynamic cooling mode is turned off (OFF); if the step S120 is satisfied, the step of the dynamic cooling mode is ended.

In the dynamic cooling steps S40 and S80 of the first embodiment and the second embodiment, one of the discharge pairs is set as P2, and the other one of the discharge pairs is set as the strong cooling discharge step.

On the other hand, in the dynamic cooling steps S42 and S82 of the third embodiment, one of the discharge pairs is set to P1, and the other one of the discharge pairs is set to the strong cooling discharge step.

When any one of the discharge pairs is set to P1 in the dynamic cooling steps S42 and S82, the cooled discharge air can be supplied to a longer distance. That is, the third embodiment will be more useful in implementing the dynamic cooling mode in a wider space than the first and second embodiments.

The remaining features below are the same as those of the second embodiment, and thus detailed descriptions thereof will be omitted.

26, the control method of the ceiling-type indoor unit of the 4th Example of this invention is demonstrated.

The control method of the ceiling-type indoor unit in this embodiment includes: step S10, turning on (ON) the dynamic cooling mode; first dynamic cooling step S44, after the step S10, making the first discharge pair to discharge step P1 run, and make the second discharge pair operate at the strong cooling discharge step P6; step S50, judging whether the first dynamic cooling step S44 exceeds the first dynamic time (5 minutes in this embodiment); the first automatic swing step S60 , under the condition that the step S50 is satisfied, the first discharge pair and the second discharge pair are operated at the same time; step S70, it is judged whether the first automatic swing step S60 exceeds the first automatic time (this embodiment is 5 minute); the second dynamic cooling step S84, in the case where the step S70 is satisfied, in the opposite to the step S40, the first discharge pair is operated at the strong cooling discharge step P6, and the second discharge pair is operated Operation at the discharge step P1; step S90, judging whether the second dynamic cooling step S84 exceeds the second dynamic time (5 minutes in this embodiment); the second automatic swing step S100, in the case of satisfying the step S90 , make the first discharge pair and the second discharge pair operate at the same time; step S110, determine whether the second automatic swing step S100 exceeds the second automatic time (5 minutes in this embodiment); step S120, when satisfying In the case of the step S110, it is determined whether the dynamic cooling mode is turned off (OFF); in the case of the step S120, the step of the dynamic cooling mode is ended.

Different from the second embodiment, in the fourth embodiment, in the dynamic cooling steps S44 and S84, a certain discharge pair is set as P1, and the other discharge pair is set as a strong cooling discharge step P6. That is, in the fourth embodiment, one of the discharge pairs is set as the horizontal wind, and the other discharge pair is set as the vertical wind.

The inclined wind is provided in the first automatic swing step S60 and the second automatic swing step S100.

The remaining features below are the same as those of the second embodiment, and thus detailed descriptions thereof will be omitted.

Referring to FIG. 27, a control method of the ceiling-type indoor unit according to the fifth embodiment of the present invention will be described.

The control method of the ceiling-type indoor unit in this embodiment includes: step S10, turning on (ON) a dynamic cooling mode; a first dynamic cooling step S40, after the step S10, making the first discharge pair to discharge step P2 operation, and make the second discharge pair operate in strong cooling discharge steps; step S50, judging whether the first dynamic cooling step S40 exceeds the first dynamic time (5 minutes in this embodiment); the second dynamic cooling step S80, In the case where the step S50 is satisfied, the first discharge pair is operated at the strong cooling discharge step, and the second discharge pair is operated at the discharge step P2; step S90, judging the second dynamic cooling step S80 Whether the second dynamic time is exceeded (5 minutes in this embodiment); step S120, if the step S90 is satisfied, determine whether the dynamic cooling mode is turned off (OFF); if the step S120 is satisfied, The step of ending the dynamic cooling mode.

The first discharge pair and the second discharge pair are performed in the order of "different operation→different operation".

Thus, in the present embodiment, the first discharge pair is performed in the order of “discharge step P2 (step S40 ) → strong cooling discharge step P4.5 (step S80 )”. In the present embodiment, the second discharge pair is performed in the order of “powerful cooling discharge step P4.5 (step S40 )→discharge step P2 (step S80 )”.

Different from the first embodiment, steps S20, S30, S60, S70, S100, and S110 are omitted in this embodiment.

In this embodiment, steps S20 , S30 , S60 , S70 , S100 , and S110 are omitted, and accordingly, the minimum one cycle driving time of the dynamic cooling mode is shortened. In the first embodiment, one cycle of the dynamic cooling mode takes 25 minutes. In this embodiment, by omitting steps S20, S30, S60, and S70, the first cycle time of the dynamic cooling mode can be shortened to 10 minutes.

The feature of this embodiment is that, when the dynamic cooling mode is started, the dynamic cooling steps S40 and S80 are alternately and repeatedly implemented.

The remaining features below are the same as those of the first embodiment, and thus detailed descriptions thereof will be omitted.

The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, and can be manufactured in various forms different from each other without changing the technical idea or essential features of the present invention In the following, those of ordinary skill in the technical field to which the present invention pertains should understand that other specific forms can be used for implementation. Therefore, the above-described embodiments are illustrative in all respects and not restrictive.

Explanation of reference numerals

100: Housing 101: Suction port

102: Discharge port 103: Suction flow path

104: Discharge channel 110: Shell case

120: Front panel 130: Indoor heat exchanger

140: Indoor fan 200: Blade module

210: the first blade 212a: the end on the front side of the first blade

212b: end of the rear side of the first blade

216: First joint part 217: Second joint part

220: the second blade 222a: the end on the front side of the second blade

222b: End of the rear side of the second blade

226: Third joint 230: Vane motor

240: Drive Coupling 241: First Drive Coupling Shaft

242: Second drive coupling shaft 243: Core coupling shaft

245: Drive Coupling Body 246: First Drive Coupling Body

247: Second drive coupling body 248: Core body

250: First blade coupling 260: Second blade coupling

251: 1st-1st blade coupling shaft 252: 1st-2nd blade coupling shaft

261: 2-1 blade coupling shaft 262: 2-2 blade coupling shaft

300: Front panel 310: Front body

320: Suction grill 330: Pre-filter

400: Module body 410: First module body

420: Second module body 500: Lifting piece

Claims (21)

1. A control method of a ceiling type indoor unit, the ceiling type indoor unit comprising:

a casing which is suspended from an indoor ceiling, has a suction port formed in a bottom surface thereof, and has a first discharge port, a second discharge port, a third discharge port, and a fourth discharge port formed in an edge of the suction port;

a first blade module which is arranged at the first discharge port, is arranged in a twelve-point direction with the suction port as a reference, forms one of a first discharge pair, and discharges air in a first discharge direction;

a second blade module disposed at the second discharge port, disposed in three-point directions with respect to the suction port, forming one of a second discharge pair, and discharging air in a second discharge direction;

a third vane module disposed at the third discharge port, disposed in a six-point direction with respect to the suction port, forming the remaining one of the first discharge pair, and discharging air in a third discharge direction; and

a fourth vane module disposed at the fourth discharge port, disposed in a nine-point direction with respect to the suction port, forming the remaining one of the second discharge pair, and discharging air in a fourth discharge direction,

each of the blade modules includes:

a module body provided on the housing side, at least a part of the module body being exposed to the discharge port;

a blade motor assembled to the module body for providing a driving force;

a driving coupling member which is assembled to the module body to be relatively rotatable, is coupled to the vane motor, rotates by a driving force of the vane motor, and includes a first driving coupling member body and a second driving coupling member body which form a predetermined angle;

a first blade coupling member which is positioned on the front side of the drive coupling member and is assembled to the module main body so as to be rotatable relative thereto;

a second blade link assembled in a relatively rotatable manner with the second drive link body;

a first blade which is disposed at the discharge port, is disposed in front of the discharge direction of the air discharged from the discharge port, and is assembled to the first drive coupling body and the first blade coupling so as to be rotatable relative to each other; and

a second blade disposed at the discharge port, assembled to the module body so as to be relatively rotatable by a second blade shaft, and assembled to the second blade coupling so as to be relatively rotatable,

the first, second, third, and fourth blade modules are set to one of spit steps P1-P6,

on the basis of the horizontal direction, the inclination of each first blade satisfies the following conditions: a first blade pitch of 0 < spit step P1 < first blade pitch of spit step P2 < first blade pitch of spit step P3 < first blade pitch of spit step P4 < first blade pitch of spit step P5 < first blade pitch of spit step P6 < 90 degrees,

on the basis of the horizontal direction, the inclination of each second blade satisfies the following conditions: a second blade inclination of 0 < ejection step P1 < second blade inclination of ejection step P2 < second blade inclination of ejection step P3 < second blade inclination of ejection step P4 < second blade inclination of ejection step P5 < second blade inclination of ejection step P6 < 90 degrees,

in each of the spitting steps, the pitch of the second blade is always set larger than the pitch of the first blade, wherein the control method includes:

step S10, starting a dynamic refrigeration mode;

a first dynamic cooling step S40 of operating the first discharge pair at a discharge step P2 and operating the second discharge pair at a forced cooling discharge step if the step S10 is satisfied;

step S50, judging whether the first dynamic refrigeration step S40 exceeds a first dynamic time;

a first automatic swing step S60 of, when the step S50 is satisfied, operating the first discharge pair and the second discharge pair simultaneously and reciprocating the first discharge pair and the second discharge pair in a predetermined section;

step S70, determining whether the first automatic swing step S60 exceeds a first automatic time;

a second dynamic cooling step S80 of operating the first discharge pair at a powerful cooling discharge step and operating the second discharge pair at a discharge step P2 when the step S70 is satisfied;

step S90, judging whether the second dynamic refrigeration step S80 exceeds a second dynamic time;

step S120, after step S90, of determining whether the dynamic cooling mode is off; and

and a step of ending the dynamic cooling mode when the step S120 is satisfied.

2. The control method of a ceiling indoor unit according to claim 1, wherein,

in the spit step P2, the first blade forms an inclination between 16 degrees and 29 degrees, the second blade forms an inclination between 57 degrees and 67 degrees,

in the forced cooling discharge step, the first vane forms a pitch of between 35 and 44 degrees, and the second vane forms a pitch of between approximately 70 and 72 degrees.

3. The control method of a ceiling indoor unit according to claim 1, wherein,

when the discharge step P1 is provided, the rear end of the second blade is located above the discharge port, the front end of the second blade is located below the discharge port, the rear end of the first blade is located below the front end of the second blade, and the front end of the first blade is located below the rear end of the first blade.

4. The control method of a ceiling indoor unit according to claim 1, wherein,

in the discharge step P1, the upper surface of the second blade is located higher than the upper surface of the first blade.

5. The control method of a ceiling indoor unit according to claim 3, wherein,

when the discharge step P2 is provided, the rear end of the first blade is located at a higher position than the front end of the second blade.

6. The control method of a ceiling indoor unit according to claim 1, wherein,

when the discharge step P6 is provided, the rear end of the second blade is positioned above the discharge port, the front end of the second blade is positioned below the discharge port,

the rear end of the first blade is located higher than the front end of the second blade and higher than the discharge port,

the end of the first blade on the front side is located at a position lower than the end of the second blade on the front side.

7. The control method of a ceiling indoor unit according to claim 1, wherein,

the drive coupling includes:

a core body;

a core coupling shaft disposed in the core body, rotatably coupled to the module body, protruding toward the vane motor, and coupled to the vane motor;

a first drive coupler body extending from the mandrel body;

a first drive coupling shaft disposed in the first drive coupling body, protruding toward the first vane body, and rotatably coupled with the first vane;

a second drive coupler body extending from the mandrel body forming a prescribed included angle (E) with the first drive coupler body; and

a second drive link shaft disposed in the second drive link body, projecting in the same direction as the first drive link shaft, and rotatably coupled to the second blade link,

the first blade coupling comprises:

a first blade link body;

a 1 st-1 st blade coupling shaft disposed on one side of the first blade coupling body, assembled with the first blade, and rotated relative to the first blade; and

a 1 st-2 nd blade coupling shaft disposed on the other side of the first blade coupling body, assembled with the module body, and rotated relative to the module body,

the second blade coupling comprising:

a second blade link body;

a 2-1 th blade link shaft disposed on one side of the second blade link body, assembled with the second blade, and rotated relative to the second blade; and

a 2 nd-2 nd blade coupling shaft portion disposed on the other side of the second blade coupling body, assembled with the drive coupling, and rotated relative to the drive coupling,

when the forced cooling spit step is provided, an angle formed by an imaginary straight line (D-D ') connecting the core link shaft and the first drive link shaft and an imaginary straight line (B-B') connecting the first drive link shaft and the 1 st-1 st blade link shaft is configured to be an obtuse angle exceeding 180 degrees.

8. The control method of a ceiling indoor unit according to claim 7, wherein,

when one of the spitting steps P2-P5 is provided, the end of the rear side of the first blade is located at a higher position than the end of the front side of the second blade, and is located at the same position as or lower position than the 2 nd-1 st blade coupling shaft.

9. The control method of a ceiling indoor unit according to claim 7, wherein,

when one of the spitting steps P1-P3 is provided, an included angle formed by the core coupling shaft, the first drive coupling shaft, and the 1 st-1 st blade coupling shaft is formed to be acute angle in the clockwise direction with respect to a virtual straight line (D-D') connecting the core coupling shaft and the first drive coupling shaft.

10. The control method of a ceiling indoor unit according to claim 1, wherein,

in the discharge step P1, the vane motor rotates at a P1 rotation angle, and as the vane motor rotates, the first vane forms a first vane P1 pitch and the second vane forms a second vane P1 pitch,

in the discharge step P2, the vane motor rotates at a P2 rotation angle larger than the P1 rotation angle, the first vane forms a first vane P2 pitch and the second vane forms a second vane P2 pitch as the vane motor rotates,

in the discharge step P3, the vane motor rotates at a P3 rotation angle larger than the P2 rotation angle, the first vane forms a first vane P3 pitch and the second vane forms a second vane P3 pitch as the vane motor rotates,

in the discharge step P4, the vane motor rotates at a P4 rotation angle larger than the P3 rotation angle, the first vane forms a first vane P4 pitch and the second vane forms a second vane P4 pitch as the vane motor rotates,

at the discharge step P5, the vane motor rotates at a P5 rotation angle larger than the P4 rotation angle, the first vane forms a first vane P5 pitch and the second vane forms a second vane P5 pitch as the vane motor rotates,

in the discharge step P6, the vane motor rotates at a P6 rotation angle larger than the P5 rotation angle, the first vane forms a first vane P6 pitch and the second vane forms a second vane P6 pitch as the vane motor rotates,

the first blade P1 has a pitch set to 16 degrees or more, and the first blade P6 has a pitch set to 57 degrees or less.

11. The control method of a ceiling indoor unit according to claim 10, wherein,

the P1 rotation angle is set to 78 degrees or more, and the P6 rotation angle is set to 110 degrees or less.

12. The control method of a ceiling indoor unit according to claim 10, wherein,

in the spit step P2, the first blade forms an inclination between 16 degrees and 29 degrees, the second blade forms an inclination between 57 degrees and 67 degrees,

in the powerful heat spitting step, the first blade forms a pitch of between 35 and 44 degrees, and the second blade forms a pitch of between approximately 70 and 72 degrees.

13. The control method of a ceiling indoor unit according to claim 1, wherein,

after the step S10, the method further includes:

a reset automatic swing step S20 of operating the first discharge pair and the second discharge pair simultaneously and reciprocating the first discharge pair and the second discharge pair in a predetermined section; and

step S30, determining whether the reset automatic swing step S20 exceeds the reset automatic time,

in the case where the step S30 is satisfied, the first dynamic cooling step S40 is performed.

14. The ceiling indoor unit control method according to claim 13, wherein,

the reset automatic time is set longer than the first automatic time.

15. The control method of a ceiling indoor unit according to claim 1, wherein,

if step S90 is satisfied, the method further includes:

a second automatic swing step S100 of operating the first discharge pair and the second discharge pair simultaneously and reciprocating the first discharge pair and the second discharge pair in a predetermined section; and

step S110, determining whether the second automatic swing step S100 exceeds a second automatic time,

in the case where the step S110 is satisfied, the step S120 is performed.

16. The control method of a ceiling indoor unit according to claim 15, wherein,

the first automatic time and the second automatic time are set to be the same.

17. The control method of a ceiling indoor unit according to claim 1, wherein,

in the case where the step S50 is not satisfied, returning to the first dynamic cooling step S40,

if the step S90 is not satisfied, the process returns to the second dynamic cooling step S80.

18. The control method of a ceiling indoor unit according to claim 1, wherein,

the first dynamic time and the second dynamic time are set to be the same.

19. The control method of a ceiling indoor unit according to claim 1, wherein,

after the step S10, the method further includes:

a reset automatic swing step S20 of operating the first discharge pair and the second discharge pair simultaneously and reciprocating the first discharge pair and the second discharge pair in a predetermined section; and

step S30, determining whether the reset automatic swing step S20 exceeds the reset automatic time,

in the case where the step S30 is satisfied, the first dynamic cooling step S40 is performed,

if step S90 is satisfied, the method further includes:

a second automatic swing step S100 of operating the first discharge pair and the second discharge pair simultaneously and reciprocating the first discharge pair and the second discharge pair in a predetermined section; and

step S110, determining whether the second automatic swing step S100 exceeds a second automatic time,

in the case where the step S110 is satisfied, the step S120 is performed.

20. The ceiling indoor unit control method according to claim 19, wherein,

the reset automatic time is set longer than the first automatic time,

the first automatic time and the second automatic time are set identically,

the first dynamic time and the second dynamic time are set to be the same.

21. A control method of a ceiling type indoor unit, the ceiling type indoor unit comprising:

a casing which is suspended from an indoor ceiling, has a suction port formed in a bottom surface thereof, and has a first discharge port, a second discharge port, a third discharge port, and a fourth discharge port formed in an edge of the suction port;

a first blade module which is arranged at the first discharge port, is arranged in a twelve-point direction with the suction port as a reference, forms one of a first discharge pair, and discharges air in a first discharge direction;

a second blade module disposed at the second discharge port, disposed in three-point directions with respect to the suction port, forming one of a second discharge pair, and discharging air in a second discharge direction;

a third vane module disposed at the third discharge port, disposed in a six-point direction with respect to the suction port, forming the remaining one of the first discharge pair, and discharging air in a third discharge direction; and

a fourth vane module disposed at the fourth discharge port, disposed in a nine-point direction with respect to the suction port, forming the remaining one of the second discharge pair, and discharging air in a fourth discharge direction,

each of the blade modules includes:

a module body provided on the housing side, at least a part of the module body being exposed to the discharge port;

a blade motor assembled to the module body for providing a driving force;

a driving coupling member which is assembled to the module body to be relatively rotatable, is coupled to the vane motor, rotates by a driving force of the vane motor, and includes a first driving coupling member body and a second driving coupling member body which form a predetermined angle;

a first blade coupling member which is positioned on the front side of the drive coupling member and is assembled to the module main body so as to be rotatable relative thereto;

a second blade link assembled in a relatively rotatable manner with the second drive link body;

a first blade which is disposed at the discharge port, is disposed in front of the discharge direction of the air discharged from the discharge port, and is assembled to the first drive coupling body and the first blade coupling so as to be rotatable relative to each other; and

a second blade disposed at the discharge port, assembled to the module body so as to be relatively rotatable by a second blade shaft, and assembled to the second blade coupling so as to be relatively rotatable,

the first, second, third, and fourth blade modules are set to one of spit steps P1-P6,

on the basis of the horizontal direction, the inclination of each first blade satisfies the following conditions: a first blade pitch of 0 < spit step P1 < first blade pitch of spit step P2 < first blade pitch of spit step P3 < first blade pitch of spit step P4 < first blade pitch of spit step P5 < first blade pitch of spit step P6 < 90 degrees,

on the basis of the horizontal direction, the inclination of each second blade satisfies the following conditions: a second blade inclination of 0 < ejection step P1 < second blade inclination of ejection step P2 < second blade inclination of ejection step P3 < second blade inclination of ejection step P4 < second blade inclination of ejection step P5 < second blade inclination of ejection step P6 < 90 degrees,

in each of the spitting steps, the pitch of the second blade is always set larger than the pitch of the first blade, wherein the control method includes:

step S10, starting a dynamic refrigeration mode;

a first dynamic cooling step S40 of operating the first discharge pair at a discharge step P2 and operating the second discharge pair at a forced cooling discharge step after step S10;

step S50, judging whether the first dynamic refrigeration step S40 exceeds a first dynamic time;

a second dynamic cooling step S80 of operating the first discharge pair at a powerful cooling discharge step and operating the second discharge pair at a discharge step P2 when the step S50 is satisfied;

step S90, judging whether the second dynamic refrigeration step S80 exceeds a second dynamic time;

a step S120 of determining whether or not the dynamic cooling mode is off when the step S90 is satisfied; and

a step of ending the dynamic cooling mode when the step S120 is satisfied,

the inclination of the first vane of the forced cooling discharge step is formed between 35 degrees and 57 degrees.

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