CN110486814A - Cabinet air conditioner indoor unit - Google Patents

Abstract

The invention belongs to air-conditioning technique fields, a kind of cabinet type air conditioner indoor set is specifically provided, which includes: body, and air inlet and the first air outlet are provided on body, breeze fan, evaporator and drip tray are provided in body, drip tray is set to the lower section of evaporator；Fresh air module, fresh air module are set to below body and connect with body, and air inlet and exhaust outlet are provided in fresh air module, and air inlet is connected to by pipeline with outdoor, and exhaust outlet is connected to air inlet；Evaporator includes coil pipe, and coil pipe includes the multiple sector structures radiated around from center, and multiple sector structures are circumferentially distributed in same plane.Setting in this way, enable center around radius flow of the refrigerant along coil pipe by evaporator, it can adequately be contacted with evaporator with flowing through the air-flow of evaporator, so as to improve the heat transfer effect of evaporator, and then can be improved the cooling or heating effect of air-conditioning.

Description

Cabinet air conditioner indoor unit

technical field

The invention belongs to the technical field of air conditioning, and specifically provides a cabinet-type air conditioner indoor unit.

Background technique

As air conditioners are widely used in thousands of households, users have higher and higher requirements for the performance of air conditioners. Taking the cabinet air conditioner as an example, usually under the same conditions, the performance of the cabinet air conditioner depends on the heat exchange effect, and the heat exchange effect is directly related to the heat exchange area. The larger the heat exchange area, the better the heat exchange effect. high.

Usually the structure and arrangement of the evaporator directly determine the size of the heat exchange area and the level of heat exchange effect. In the existing cabinet type air conditioner, the evaporator is usually placed obliquely in the air conditioner casing or attached to the air inlet, but such an arrangement makes the contact between the airflow and the evaporator uneven, resulting in an unsatisfactory heat exchange effect. This in turn affects the cooling and heating effect of the air conditioner.

Therefore, there is a need in the art for a cabinet-type air conditioner indoor unit to solve the above problems.

SUMMARY OF THE INVENTION

In order to solve the above problems in the prior art, that is, in order to solve the problem that the heat exchange effect of the evaporator of the existing cabinet-type air conditioner indoor unit is not good, resulting in an unsatisfactory cooling and heating effect of the air conditioner, the present invention provides a cabinet The cabinet type air conditioner indoor unit includes: a body, an air inlet and a first air outlet are arranged on the body, and an air supply fan, an evaporator and a water receiving tray are arranged in the body, and the connection The water tray is arranged below the evaporator; the fresh air module is arranged below the body and connected with the body, and the fresh air module is provided with an air suction port and an air exhaust port, and the air suction port passes through The pipeline is communicated with the outdoors, and the air outlet is communicated with the air inlet; wherein, the evaporator includes a coil tube, and the coil tube includes a plurality of fan-shaped structures radiating from the center to the periphery, and the plurality of fan-shaped structures distributed in the same plane in the circumferential direction.

In the preferred technical solution of the above-mentioned cabinet-type air conditioner indoor unit, the coil includes a plurality of branch pipes, the inlets and the outlets of the plurality of branch pipes are respectively connected in parallel, and the fan-shaped structures in each branch pipe are connected in series with each other at the inner end, and each branch pipe is connected in series. The outer end of the fan-shaped structure in the branch pipe is formed into a circular arc or polygonal structure.

In the preferred technical solution of the above-mentioned cabinet-type air conditioner indoor unit, the evaporator includes multiple layers of the coils in the vertical direction, the inlets and the outlets of the multiple layers of the coils are respectively connected in parallel, and the two adjacent layers of the coils The upstream and downstream sections of one layer of coils correspond in the vertical direction to the downstream and upstream sections of the other layer of coils, respectively.

In the preferred technical solution of the above-mentioned cabinet-type air conditioner indoor unit, the water receiving tray includes a circular disc and an annular disc, the circular disc and the annular disc are arranged up and down in a vertical direction, and drainage is passed between the two. tube connection.

In the preferred technical solution of the above-mentioned cabinet-type air conditioner indoor unit, the body includes a cylindrical casing and an annular air outlet structure arranged on the top of the cylindrical casing, and the air blower, the evaporator and the water receiving pan are all The first air outlet is formed on the annular air outlet structure.

In the preferred technical solution of the above-mentioned cabinet-type air conditioner indoor unit, the annular air outlet structure includes an inner annular surface and an outer annular surface, and the outer annular surface is sleeved on the outside of the inner annular surface and surrounds the inner annular surface. An air outlet cavity is formed, the front end of the outer annular surface and the front end of the inner annular surface are formed with the first air outlet, and the rear end of the outer annular surface and the rear end of the inner annular surface are closed The bottom end of the outer ring surface is also provided with a ventilation hole, and the air outlet cavity communicates with the cylindrical shell through the ventilation hole.

In the preferred technical solution of the above-mentioned cabinet-type air conditioner indoor unit, a second air outlet is further provided on the outer ring surface, the first air outlet is configured with a first blocking mechanism, and the second air outlet is configured with a second air outlet. Two shutter mechanisms, the first shutter mechanism is configured to close or open the first air outlet during operation, and the second shutter mechanism is configured to close or open the second air outlet during operation.

In the preferred technical solution of the above-mentioned cabinet-type air conditioner indoor unit, the fresh air module includes a cylindrical casing, a fresh air fan and a variable speed drive mechanism arranged in the cylindrical casing, and the variable speed drive mechanism is connected with the fresh air fan so as to The fresh air fan is driven to rotate.

In the preferred technical solution of the above-mentioned cabinet-type air conditioner indoor unit, the variable speed drive mechanism includes a drive motor and a plurality of gear sets with different gear ratios, and the driving wheels of the plurality of gear sets are fixedly connected to the output shaft of the drive motor. , the driven wheels of the plurality of gear sets are fixedly connected to the rotating shaft of the fresh air fan.

In the preferred technical solution of the above-mentioned cabinet-type air conditioner indoor unit, a gap is formed between the body and the fresh air module, the air outlet is arranged on the top of the fresh air module, and the air inlet is arranged at the top of the body. The bottom, and/or the cabinet-type air conditioner indoor unit further includes a base, and the fresh air module is respectively rotatably connected with the body and the base.

Those skilled in the art can understand that, in the preferred technical solution of the present invention, the body of the cabinet-type air conditioner indoor unit is provided with an air inlet and a first air outlet, and the body is provided with an air blower, an evaporator and a water receiving tray , the water receiving tray is arranged below the evaporator, the evaporator includes a coil tube, the coil tube includes a plurality of fan-shaped structures radiating from the center to the surrounding, and the plurality of fan-shaped structures are distributed in the same plane along the circumferential direction. By arranging the coil of the evaporator into a plurality of fan-shaped structures radiating from the center to the surrounding, the multiple fan-shaped structures are distributed in the same plane along the circumferential direction, so that the refrigerant can flow along the coil from the center of the evaporator to the surrounding radiation. So that the air flowing through the evaporator can be fully contacted with the evaporator, avoiding the problem that one end of the heat exchange effect is good at one end and the other end is poor when the existing evaporators are arranged in an S shape, so that the heat exchange effect of the evaporator is better, and then It also makes the cooling and heating effect of the air conditioner better. In addition, the cabinet air conditioner indoor unit also includes a fresh air module. By setting the fresh air module, the cabinet air conditioner indoor unit can also introduce outdoor fresh air during operation, ensure the oxygen content of the indoor air, and solve many problems such as turbidity and poor quality of the indoor air. And after the introduction of outdoor fresh air, the fresh air can also be heat-exchanged to reduce the fluctuation of indoor temperature and improve user experience.

Further, the coil of the evaporator includes a plurality of branch pipes, and the inlets and the outlets of the plurality of branch pipes are respectively connected in parallel. That is, the coil includes a plurality of branches, and the refrigerant can flow independently in each branch. With this arrangement, the heat exchange effect of the evaporator can be further improved, and the cooling and heating effect of the air conditioner can be further improved.

Further, the evaporator includes a multi-layer coil in the vertical direction, the inlet and the outlet of the multi-layer coil are respectively connected in parallel, and the upstream section and the downstream section of one layer of the adjacent two-layer coil are respectively connected with the other layer of the coil. The downstream and upstream sections of the tube correspond in the vertical direction. By arranging the multi-layer coils, the heat exchange area of the evaporator can be increased, so that the heat exchange effect of the evaporator can be improved, and the inlet and the outlet of the multi-layer coils are connected in parallel respectively, that is, each layer of the coils is a branch. The refrigerant flows independently in each layer of the coils. With this arrangement, the heat exchange effect of the evaporator can be further improved, and the cooling and heating effect of the air conditioner can be further improved. In addition, by making the upstream and downstream sections of one layer of coils in the adjacent two layers of coils correspond to the downstream and upstream sections of the other layer of coils in the vertical direction, respectively, the adjacent two layers of the evaporator are made The refrigerant in the coil can balance the heat exchange, so that when the air flows through the evaporator, the heat exchange is more uniform and the comfort is better. Specifically, as the refrigerant flows in the coil, the energy of the refrigerant will gradually decrease, and the cooling For example, the temperature of the refrigerant in the upstream section of the coil is relatively low, that is, the energy of the refrigerant is high. As the refrigerant flows in the coil and exchanges energy with the airflow flowing through the evaporator, the energy of the refrigerant will gradually decrease. The temperature of the refrigerant in the downstream section is relatively high. By making the upstream section of the upper layer coil correspond to the downstream section of the lower layer coil in the vertical direction, the downstream section of the upper layer coil and the upstream section of the lower layer coil are in the vertical direction. Correspondingly, the refrigerants in the adjacent two layers of coils can complement each other in energy, so that when the airflow flows through the evaporator, the heat exchange is more uniform and the comfort is better.

Further, the water receiving tray adopts a split design in which the circular disk and the annular disk are arranged up and down, which cleverly solves the problem that the water receiving tray cannot be arranged below when the evaporator is horizontally arranged, and realizes the condensed water without affecting the air intake. collect.

Further, by arranging an annular air outlet structure on the top of the cylindrical shell, the annular air outlet structure is provided with a first air outlet and a second air outlet, and the first air outlet and the second air outlet are each provided with a blocking mechanism, so that the cabinet is The indoor air conditioner has a brand-new air outlet structure and two types of air outlet (injection mode and diffusion mode). The closed idea of cabinet product iteration promotes the development and change of air conditioners.

Further, by setting a variable speed drive mechanism in the fresh air module to adjust the rotational speed of the fresh air fan, the present application can also adjust the intake air volume of the fresh air, and combined with the different wind speeds of the air supply fan, a variety of air supply modes can be realized, which greatly improves the speed of the fresh air fan. Availability of air conditioners.

Further, by forming a gap between the body and the fresh air module, and arranging the air inlet at the bottom of the body, the area of the air inlet is larger and the air intake volume is larger, which is beneficial to improve the heat exchange effect and heat exchange efficiency. By arranging the air outlet on the top of the fresh air module, the fresh air discharged from the air outlet can directly enter the body for heat exchange, thereby reducing the fluctuation of indoor temperature and improving the user experience.

Further, by rotatably connecting the fresh air module with the body and the base, the body and fresh air module of the cabinet air conditioner can be freely rotated during installation, which facilitates finding the best installation angle, reduces the installation difficulty, and improves the cabinet air conditioner. Indoor unit suitability.

Description of drawings

1 is a schematic structural diagram of a cabinet-type air conditioner indoor unit in a first embodiment of the present invention;

2A is a schematic structural diagram of an evaporator of the present invention;

2B is a schematic structural diagram of the first layer coil of the evaporator of the present invention;

2C is a schematic structural diagram of the second layer coil of the evaporator of the present invention;

3A is a cross-sectional view of the first air outlet mode of the annular air outlet structure of the present invention;

3B is a cross-sectional view of a second air outlet mode of the annular air outlet structure of the present invention;

4A is a structural diagram of the first embodiment of the water receiving tray of the present invention;

4B is a structural diagram of the second embodiment of the water receiving tray of the present invention;

4C is a top view of the circular plate of the water receiving plate of the present invention;

4D is a top view of the annular disk of the water receiving disk of the present invention;

5A is a front cross-sectional view of the sterilization and purification module of the present invention;

5B is a top view of the sterilization and purification module of the present invention;

6 is a schematic structural diagram of a cabinet-type air conditioner indoor unit in a second embodiment of the present invention;

Fig. 7 is the structural representation of the fresh air module of the present invention;

8A is a working principle diagram of the first fresh air mode of the cabinet-type air conditioner indoor unit in the second embodiment of the present invention;

8B is a working principle diagram of the second fresh air mode of the cabinet-type air conditioner indoor unit in the second embodiment of the present invention;

8C is a working principle diagram of the third fresh air mode of the cabinet-type air conditioner indoor unit in the second embodiment of the present invention.

Detailed ways

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that the embodiments described below are only used to explain the technical principle of the present invention, and are not intended to limit the protection scope of the present invention.

It should be noted that, in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inside", " "Outside", "vertical" and other terms indicating a direction or a positional relationship are based on the direction or positional relationship shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, It is constructed and operated in a particular orientation and is therefore not to be construed as a limitation of the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In addition, it should also be noted that, in the description of the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a It is a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Based on the background art, the evaporator of the existing cabinet-type air conditioner indoor unit has poor heat exchange effect, which leads to the problem that the cooling and heating effect of the air conditioner is not ideal. The invention provides a cabinet-type air conditioner indoor unit, which aims to make the airflow flowing through the evaporator and the evaporator fully contact, so as to improve the heat exchange effect of the evaporator, thereby improving the cooling and heating effect of the air conditioner.

Example 1

1 to 6, the first embodiment of the cabinet-type air conditioner indoor unit of the present invention will be described in detail.

Referring first to FIG. 1 , FIG. 1 is a schematic structural diagram of a cabinet-type air conditioner indoor unit in a first embodiment of the present invention.

As shown in FIG. 1 , the present invention provides a cabinet-type air conditioner indoor unit. The cabinet-type air conditioner indoor unit includes a body 1. The body 1 is provided with an air inlet 111 and a first air outlet 123. The first air outlet 123 is provided with There is a humidification device 2, and a sterilization and purification module 7, a water receiving tray 5, an evaporator 4 and an air blower 3 are sequentially arranged in the body 1 along the air flow direction. Located at the air inlet 111, the evaporator 4 includes a coil, and the coil includes a plurality of fan-shaped structures radiating from the center to the periphery, and the plurality of fan-shaped structures are distributed in the same plane along the circumferential direction (see FIG. 2B or FIG. 2C ).

When the cabinet-type air conditioner indoor unit is running, under the action of the air supply fan 3, the air flow enters the body 1 from the air inlet 111, flows through the evaporator 4 and exchanges heat with the evaporator 4, and then is discharged from the first air outlet 123. , since the coil of the evaporator 4 includes a plurality of fan-shaped structures radiating from the center to the surrounding, the multiple fan-shaped structures are distributed in the same plane along the circumferential direction, so that the refrigerant can flow along the coil from the center of the evaporator 4 to the surrounding radiation. , so that the airflow flowing through the evaporator 4 can be fully contacted with the evaporator 4, avoiding the problem that the heat exchange effect of the existing evaporators is arranged in an S-shape, one end is good and the other end is poor, so that the heat exchange effect of the evaporator 4 is improved. , thereby making the cooling and heating effect of the air conditioner better.

Preferably, the coiled pipe includes a plurality of branch pipes, the inlets and the outlets of the plurality of branch pipes are respectively connected in parallel, the fan-shaped structures in each branch pipe are connected in series with each other at the inner end, and the outer end of the fan-shaped structure in each branch pipe is formed into a circular arc or polygonal structure. That is, the outer end of each fan-shaped structure can be formed as a circular arc structure (the one shown in FIG. 2B is the circular arc structure), or it can be formed as a polygonal structure (the one shown in FIG. 2C is the polygonal structure). The adjustment and change of the specific shape of the outer end of the fan-shaped structure does not deviate from the principle and scope of the present invention, and should be limited within the protection scope of the present invention. The coiled pipe may include two branch pipes, three branch pipes or four branch pipes, etc. The adjustment and change of the specific number of branch pipes does not deviate from the principle and scope of the present invention, and should be limited to the protection scope of the present invention within.

Preferably, the evaporator 4 of the present invention includes multi-layer coils in the vertical direction, the inlet and outlet of the multi-layer coils are respectively connected in parallel, and the upstream section and the downstream section of one layer of the adjacent two-layer coils are respectively connected with The downstream section and the upstream section of the other layer of coils correspond in the vertical direction. By arranging the multi-layer coils, the heat exchange area of the evaporator 4 can be increased, so that the heat exchange effect of the evaporator 4 can be improved, and the inlet and outlet of the multi-layer coils are respectively connected in parallel, so that the refrigerant can be cooled in each layer of the coils. The heat exchange effect of the evaporator 4 can be further improved by such arrangement. In addition, as the refrigerant flows in the coil, the energy of the refrigerant will gradually decrease. Taking refrigeration as an example, the temperature of the refrigerant in the upstream section of the coil is relatively low, that is, the energy of the refrigerant is high. The air flow of the evaporator 4 exchanges energy, and the energy of the refrigerant will gradually decrease, so the temperature of the refrigerant in the downstream section of the coil is relatively high. Correspondingly, the downstream section of the upper layer coil corresponds to the upstream section of the lower layer coil in the vertical direction, so that the refrigerants in the adjacent two layers of coils of the evaporator 4 can balance the heat exchange, so that the airflow flows through the evaporator 4 , the heat exchange is more uniform and the comfort is better. The evaporator 4 may include two-layer coils, three-layer coils, or four-layer coils in the vertical direction. Such flexible adjustment and changes do not deviate from the principle and scope of the present invention, and should be limited to the present invention. within the scope of protection. In the following, the evaporator 4 includes two layers of coils in the vertical direction and each layer of coils includes two branch pipes as an example for detailed description.

2A, 2B and 2C, wherein, FIG. 2A is a schematic structural diagram of the evaporator of the present invention, FIG. 2B is a structural schematic diagram of the first layer coil of the evaporator of the present invention, and FIG. Schematic diagram of the structure of the second layer coil of the evaporator. The arrows in the figure indicate the flow direction of the refrigerant. The evaporator 4 includes a first layer of coils 41 and a second layer of coils 42 in the vertical direction. The first layer of coils 41 is located below the second layer of coils 42. The layer coil 41 includes a first branch pipe 411 and a second branch pipe 412, the inlet 4111 of the first branch pipe 411 and the inlet 4121 of the second branch pipe 412 are connected in parallel, and the outlet 4112 of the first branch pipe 411 and the outlet 4122 of the second branch pipe 412 are connected in parallel , the second layer coil 42 includes a third branch pipe 421 and a fourth branch pipe 422, the inlet 4211 of the third branch pipe 421 and the inlet 4221 of the fourth branch pipe 422 are connected in parallel, and the outlet 4212 of the third branch pipe 421 and the fourth branch pipe 422 outlet 422 4222 are connected in parallel, the fan-shaped structures in the first branch pipe 411 are connected in series with each other at the inner end, the fan-shaped structures in the second branch pipe 412 are connected in series with each other at the inner end, the fan-shaped structures in the third branch pipe 421 are connected in series with each other at the inner end, and the fourth branch pipe 422 is connected in series with each other at the inner end. The inner fan-shaped structure is connected in series with each other at the inner end. After the refrigerant enters the evaporator 4, it is divided into four paths, respectively entering the first branch pipe 411, the second branch pipe 412, the third branch pipe 421 and the fourth branch pipe 422. The refrigerant and the refrigerant in the second branch pipe 412 both flow counterclockwise, and the refrigerant in the third branch pipe 421 and the refrigerant in the fourth branch pipe 422 both flow clockwise. The downstream sections of the three branch pipes 421 correspond in the vertical direction, the downstream section of the first branch pipe 411 corresponds to the upstream section of the third branch pipe 421 in the vertical direction, and the upstream section of the second branch pipe 412 and the fourth branch pipe 422 The downstream section corresponds in the vertical direction, and the downstream section of the second branch pipe 412 corresponds to the upstream section of the fourth branch pipe 422 in the vertical direction, passing through the refrigerant in the first layer coil 41 and the second layer coil 42 The energy of the refrigerant inside complements each other, so that when the airflow flows through the evaporator, the heat exchange is more uniform, that is, the airflow in the front left area, the airflow in the front right area, the airflow in the rear left area, and the airflow in the right rear area flow through the evaporator. When the device is installed, the energy absorbed is roughly the same, and accordingly, the temperature of the airflow in these four areas is closer, and the comfort is better.

Continuing to refer to FIG. 1 , in a possible implementation, the cabinet-type air conditioner indoor unit includes a body 1 and a base 6 , and the body 1 is rotatably connected to the base 6 . Among them, the body 1 and the base 6 can be freely rotatably connected by ordinary bearings, or can be connected by a damped rotary connection such as a rotary damping bearing, etc. This flexible adjustment and change does not deviate from the principle of the present invention and scope should be limited within the protection scope of the present invention. After the connection is completed, a gap is formed between the body 1 and the base 6 , the air inlet 111 is arranged at the bottom of the body 1 , and the base 6 is also provided with a guiding slope on the side close to the body 1 . The body 1 includes a cylindrical casing 11 and an annular air outlet structure 12 arranged on the top of the cylindrical casing 11. The water receiving tray 5, the evaporator 4 and the air blower 3 are sequentially arranged in the cylindrical casing 11 from bottom to top, and the first air outlet 123 is formed. on the annular air outlet structure 12 . Wherein, the air blower 3 preferably adopts a digital turbine motor 3 (or called a digital motor or a digital motor), which is a motor with high rotational speed and can generate strong suction, and its maximum rotational speed is close to 110,000 revolutions per minute, It is 4 to 5 times the speed of ordinary fan motor.

By rotatably connecting the body 1 and the base 6, the cabinet-type air conditioner indoor unit of the present invention can rotate freely during installation, which facilitates finding the best installation angle, reduces installation difficulty, and improves the applicability of the air conditioner indoor unit. By forming a gap between the body 1 and the base 6 and arranging the air inlet 111 at the bottom of the body 1, the area of the air inlet 111 is larger and the air intake volume is larger, which is beneficial to the large-scale circulation of indoor air and heat exchange. The effect and heat transfer efficiency are improved. The base 6 is provided with a guiding slope, which can initially guide the air intake and improve the smoothness of the air intake. By using the digital turbine motor 3 as the air blower 3, the air conditioner has strong wind power and large air supply volume, which meets the user's demand for rapid cooling and heating.

A specific implementation of the annular air outlet structure will be described below with reference to FIG. 1 , FIG. 3A and FIG. 3B . 3A is a sectional view of the first air outlet mode of the annular air outlet structure of the present invention; FIG. 3B is a sectional view of the second air outlet mode of the annular air outlet structure of the present invention.

As shown in FIG. 1 , FIG. 3A and FIG. 3B , the annular air outlet structure 12 includes an inner annular surface 121 and an outer annular surface 122 , and the outer annular surface 122 is sleeved outside the inner annular surface 121 and formed around the inner annular surface 121 In the air outlet cavity, the front end of the outer annular surface 122 (ie the right end in FIG. 3A ) and the front end of the inner annular surface 121 (also the right end in FIG. 3A ) are formed with a first air outlet 123 , and the side surface of the outer annular surface 122 is provided with a first air outlet 123 . For the second air outlet 124 , the rear end of the outer annular surface 122 is closed and connected to the rear end of the inner annular surface 121 . A first baffle mechanism 125 is disposed at the first air outlet 123, and the first baffle mechanism 125 can selectively open or close the first air outlet 123. Similarly, a second baffle plate is disposed at the second air outlet 124. The mechanism 126 and the second shutter mechanism 126 can selectively open or close the second air outlet 124 . The bottom end of the outer ring surface 122 is also provided with a ventilation hole (not shown in the figure). The humidifying device 2 includes a water tank 21 and an atomizer 22 arranged in the water tank 21, such as an ultrasonic atomizer or an air compression atomizer, etc. The water tank 21 is fixedly connected to the bottom of the inner ring surface 121, and the atomizer 22 can The liquid in the water tank 21 is atomized into water mist.

It should be noted that those skilled in the art can understand that, although the drawings of this embodiment are not specifically shown, the realization forms of the first blocking mechanism 125 and the second blocking mechanism 126 are various, as long as This arrangement can effectively realize the opening and closing control of the first air outlet 123 and the second air outlet 124 . For example, the first baffle mechanism 125 and/or the second baffle mechanism 126 can be realized in the form of a linear motor controlling an annular baffle ring, and the first air outlet is realized by driving the annular baffle ring to move back and forth in the air outlet cavity by the linear motor. 123 and/or the opening and closing control of the second air outlet 124; or a linear motor can also be replaced by a combination of a rotary motor, a rack and pinion, a chain, and the like. For another example, the first baffle mechanism 125 and/or the second baffle mechanism 126 can realize the opening and closing control of the second air outlet 124 through electromagnetic adsorption, that is, the baffle ring is made of metal material and placed in the air outlet cavity. An electromagnetic coil is provided, and an elastic member is arranged between the retaining ring and the inner ring surface 121 or the outer ring surface 122. When the power is turned on, the electromagnetic coil generates a magnetic force to attract the retaining ring, and the elastic member stores elastic potential energy, thereby opening the first air outlet 123 or the second air outlet 123. Two air outlets 124; when the electromagnetic coil is powered off, the retaining ring returns to the initial position under the action of the elastic member, closing the first air outlet 123 or the second air outlet 124. For another example, one of the first blocking mechanism 125 and the second blocking mechanism 126 can also be omitted, and the selection of any one of the first air outlet 123 and the second air outlet 124 can be realized only by controlling the movement of the above-mentioned one blocking mechanism. Sex is turned on.

Preferably, the inner annular surface 121 and/or the outer annular surface 122 are further provided with an air guiding structure, and the air guiding structure is arranged so that the air outlet width at the air outlet can be gradually reduced. For example, the air guide structure adopts two arc-shaped plates as shown in FIG. 3A or 3B. The arrangement of the two arc-shaped plates makes the outlet width of the first air outlet 123 and the second air outlet 124 gradually narrow, so that when the airflow passes through the outlet When the tuyere is at the tuyere, the Venturi effect will be produced to speed up the flow rate and achieve the effect of jetting. At the same time of spraying, a negative pressure is generated near the annular air outlet, and the negative pressure can attract the air near the annular air outlet to flow together, realize the circulation of indoor air, and effectively increase the air supply volume. Of course, the air guide structure can also be any other arrangement, as long as the arrangement can make the air outlet width of the first air outlet 123 and/or the second air outlet 124 gradually narrow, which will not be repeated here.

By arranging the annular air outlet structure 12 on the top of the cylindrical housing 11, the annular air outlet structure 12 is provided with a first air outlet 123 and a second air outlet 124, and each of the first air outlet 123 and the second air outlet 124 is provided with a baffle plate The mechanism makes the air conditioner indoor unit have a new air outlet structure and two air outlet modes, jet mode and diffusion mode. Users can flexibly choose the air outlet mode according to their needs. The spray mode can achieve the effect of spraying air, with a long range and a larger air output; the diffusion mode supplies air to both sides from the second air outlet 124, and the air supply area is wide, which can form an encircling airflow in the room and strengthen the circulation of indoor air. In addition, the arrangement of the annular air outlet structure 12 makes the structure of the indoor unit of the air conditioner novel, subverts the closed idea of the traditional cabinet unit product iteration, and promotes the development and change of the air conditioner. By fixing the water tank 21 to the bottom of the inner ring surface 121, the water mist atomized by the atomizer 22 can be directly mixed with the air flow discharged from the air outlet and sent to all corners of the room to ensure the humidification effect and improve the indoor air quality. comfort.

4A, 4B, 4C and 4D, a specific embodiment of the water receiving tray of the present invention will be described below. 4A is a structural diagram of the first embodiment of the water receiving tray of the present invention; FIG. 4B is a structural diagram of the second embodiment of the water receiving tray of the present invention; FIG. 4C is a schematic diagram of the water receiving tray of the present invention. The top view of the circular disk; FIG. 4D is the top view of the annular disk of the water receiving tray of the present invention.

As shown in FIGS. 4A , 4B, 4C and 4D , the water receiving tray 5 includes a circular disk 51 and an annular disk 52 , which are arranged up and down in the vertical direction and communicated with each other through a drainage pipe 53 . Specifically, in a more preferred embodiment, the circular disk 51 can be arranged above the annular disk 52 as shown in FIG. 4A , and the outer edge of the circular disk 51 and the inner edge of the annular disk 52 are at There is a certain degree of coincidence in the vertical direction. Of course, the circular disc 51 can also be arranged below the annular disc 52 as shown in FIG. 4B , and the outer edge of the circular disc 51 and the inner edge of the annular disc 52 have a certain degree of vertical coincidence.

The water receiving tray 5 adopts a split design in which the circular disk 51 and the annular disk 52 are arranged up and down, which cleverly solves the problem that the water receiving tray 5 cannot be arranged below when the evaporator 4 is horizontally arranged in the present invention. The collection of condensed water is realized below. Of course, the specific form of the above-mentioned water receiving tray 5 is not restrictive, and any form of improvement should fall within the protection scope of the present invention without departing from the upper and lower split design of the present invention.

Next, referring to FIG. 5A and FIG. 5B , a specific embodiment of the sterilization and purification module of the present invention will be described. 5A is a front cross-sectional view of the sterilization and purification module of the present invention; FIG. 5B is a top view of the sterilization and purification module of the present invention.

As shown in FIGS. 5A and 5B , the sterilization and purification module 7 is in the shape of a cake, which includes a HEPA filter layer 71 , a cold catalyst filter layer 72 , a negative ion germicidal lamp 73 and an ion converter 74 , and the cold catalyst filter layer 72 is located on the top of the cake. , the HEPA filter layer 71 is located at the bottom of the pie shape, the ion converter 74 is located in the center of the pie shape, and the negative ion germicidal lamps 73 are provided with a plurality of annular and surrounding the side of the ion converter 74 .

Among them, the HEPA filter layer 71 includes three layers (primary filter layer, charge layer, electrostatic dust collection layer), and its removal efficiency for particles with a diameter of 0.3 microns or less can reach more than 99.97%.

The cold catalyst filter layer 72 can perform a catalytic reaction under normal temperature conditions, decompose a variety of harmful and odorous gases into harmless and odorless substances under normal temperature and pressure, and transform from simple physical adsorption to chemical adsorption, and decompose while adsorbing to remove formaldehyde. , benzene, xylene, toluene, TVOC and other harmful gases to generate water and carbon dioxide. In the catalytic reaction process, the cold catalyst itself does not directly participate in the reaction, and the cold catalyst does not change or lose after the reaction, and plays a long-term role. The cold catalyst itself is non-toxic, non-corrosive, non-combustible, and the reaction products are water and carbon dioxide, which does not produce secondary pollution and greatly prolongs the service life of the adsorption material.

The ion converter 74 can generate a large amount of negative ions in the state of being energized. Studies have shown that the appropriate amount of negative ions in the air can not only efficiently remove dust, sterilize and purify the air, but also activate the oxygen molecules in the air to form oxygen-carrying negative ions. It can activate air molecules, improve human lung function, promote metabolism, enhance disease resistance, regulate the central nervous system, and make people refreshed and energetic.

The negative ion sterilization spotlight is annularly surrounding the side of the ion converter 74, which can sterilize the air passing through the sterilization and purification module 7, and because it adopts an arrangement around the ion converter 74, it can irradiate a wide range of , The effect of sterilization without dead ends.

It should be noted that although the above embodiment is described in conjunction with the sterilization and purification module 7 including the HEPA filter layer 71 , the cold catalyst filter layer 72 , the negative ion germicidal lamp 73 and the ion converter 74 , those skilled in the art can focus on specific applications. One or more of them are selected as the recombined sterilization and purification module 7 to be installed in the cabinet air conditioner indoor unit. The combination does not deviate from the principle of the present invention, and therefore falls within the protection scope of the present invention.

Finally, referring to FIG. 1 again, the working principle of the cabinet-type air conditioner indoor unit of the present invention is briefly described.

As shown in FIG. 1 , when the indoor unit of the cabinet air conditioner is working, the digital turbine motor 3 rotates to suck the indoor air into the cylindrical casing 11 from the air inlet 111 at the bottom of the cylindrical casing 11 , and the air flows smoothly after being efficiently sterilized and purified by the sterilization and purification module 7 . The water-receiving tray 5 which is arranged over the body is sent into the air outlet cavity by the digital turbine motor 3 after uniform heat exchange with the evaporator 4 . The air entering the air outlet cavity is accelerated and sprayed into the room from the first air outlet 123 or the second air outlet 124 . During the spraying process, the air is mixed with the water mist atomized by the atomizer 22 .

It should be noted that, although the above embodiment is described in combination with the humidification device 2 provided on the body 1, the sterilization and purification module 7, the water receiving tray 5, the evaporator 4 and the air blower 3 provided in the body 1, the above Not all of the features are necessary, and those skilled in the art can understand that, on the premise that the cabinet-type air conditioner indoor unit can operate normally, the above arrangement modes can be appropriately deleted to combine new embodiments. For example, one or all of the humidification device 2 and the sterilization and purification module 7 can be deleted on the basis of the above-mentioned embodiment, so as to combine a new cabinet-type air conditioner indoor unit.

Example 2

6 to 8C , the second embodiment of the cabinet-type air conditioner indoor unit of the present invention will be described below.

First, referring to FIGS. 6 and 7 , the structure of the cabinet-type air conditioner indoor unit will be described. 6 is a schematic structural diagram of a cabinet-type air conditioner indoor unit in the second embodiment of the present invention; FIG. 7 is a structural schematic diagram of a fresh air module of the present invention.

As shown in FIG. 6 and FIG. 7 , on the basis of the cabinet-type air-conditioning indoor unit in any of the installation forms described in Embodiment 1, the cabinet-type air-conditioning indoor unit is further provided with a fresh air module 8 , and the fresh air module 8 is arranged on the side of the body 1 . Below and connected to the body 1 , the fresh air module 8 is provided with an air inlet 811 and an air outlet 812 .

By arranging the fresh air module 8 on the cabinet air conditioner indoor unit, the cabinet air conditioner indoor unit can also introduce outdoor fresh air during operation, ensure the oxygen content of the indoor air, and solve many problems such as turbidity and poor quality of the indoor air. And after the introduction of outdoor fresh air, the fresh air can also be heat-exchanged to reduce the fluctuation of indoor temperature and improve user experience.

6, in a more preferred embodiment, the fresh air module 8 is arranged between the body 1 and the base 6, and the fresh air module 8 is rotatably connected with the body 1 and the base 6 respectively, such as the fresh air module 8 is respectively connected with the body 1 and the base 6. The connection between 6 is free-rotating through ordinary bearings, or connected through a rotary damping bearing such as a rotary damping bearing. After the connection is completed, a gap is formed between the body 1 and the fresh air module 8 , the air outlet 812 is arranged on the top of the fresh air module 8 , and the air inlet 111 is arranged at the bottom of the body 1 .

By forming a gap between the body 1 and the fresh air module 8, and arranging the air inlet 111 at the bottom of the body 1, the area of the air inlet 111 is larger and the air intake volume is larger, which is beneficial to improve the heat exchange effect and heat exchange efficiency. By arranging the air outlet 812 on the top of the fresh air module 8, the fresh air discharged from the air outlet 812 can directly enter the body 1 for heat exchange, thereby reducing the fluctuation of indoor temperature and improving user experience. By rotatably connecting the fresh air module 8 with the body 1 and the base 6, both the body 1 and the fresh air module 8 can rotate freely when the air conditioner is installed, which facilitates finding the best installation angle, reduces the difficulty of installation, and improves the applicability of the air conditioner.

6 and 7 , in a preferred embodiment, the fresh air module 8 includes a cylindrical casing 81 , a fresh air fan 82 and a variable speed drive mechanism 83 arranged in the cylindrical casing 81 , and the variable speed drive mechanism 83 and the fresh air fan 82 is connected to drive the fresh air fan 82 to rotate at a variable speed. Specifically, the variable speed drive mechanism 83 includes a drive motor 831, an electric shift fork 833, and a plurality of gear sets 832 with different gear ratios. The driven wheel is fixedly connected to the rotating shaft of the fresh air fan 82, and the electric shift fork 833 is erected at one of the driving wheels, so that the meshing of different gear sets 832 can be realized by adjusting the extension length of the shift fork.

By setting the variable speed drive mechanism 83 in the fresh air module 8 to adjust the rotational speed of the fresh air fan 82, the present invention can also adjust the intake air volume of the fresh air. Improve the usability of the air conditioner.

Of course, in addition to using the electric shift fork 833, those skilled in the art can also use any other method for switching between different gear sets 832, as long as the method can switch the gear set 832 smoothly. For example, the meshing of different gear sets 832 can also be achieved by using two electric push rods to push the driving gear to move from two directions respectively. Further, the speed adjustment of the fresh air fan 82 can also be realized in other ways, such as by using a servo motor with adjustable speed to drive the fresh air fan 82 to rotate through the gear set 832 .

8A to 8C, three different fresh air modes will be introduced. 8A is a working principle diagram of the first fresh air mode of the indoor unit of the cabinet type air conditioner in the second embodiment of the present invention; FIG. 8B is the second embodiment of the indoor unit of the cabinet type air conditioner in the second embodiment of the present invention. FIG. 8C is a working principle diagram of the third fresh air mode of the cabinet-type air conditioner indoor unit in the second embodiment of the present invention.

As shown in FIG. 8A , in the first fresh air mode, the air blower 3 runs normally, and the fresh air fan 82 operates at a lower speed than the air blower 3 . At this time, the air entering the body 1 is divided into two parts, and one part comes from the fresh air module. 8. The other part comes from indoor air. This air supply method can take into account the circulation of indoor air and the introduction of fresh air.

As shown in FIG. 8B , in the second fresh air mode, the air blower 3 operates normally, and the fresh air fan 82 operates at a rotational speed approximately equal to the rotational speed of the air blower 3. At this time, all the airflow entering the body 1 is outdoor fresh air. The air supply method can perform heat exchange treatment on the fresh air while introducing fresh air, reducing the fluctuation of indoor temperature.

As shown in FIG. 8C , in the third fresh air mode, the blower fan 3 operates normally, and the fresh air fan 82 operates at a higher rotational speed than the blower fan 3. At this time, a part of the outdoor fresh air enters the body 1 to participate in heat exchange, and the other part The air is sent into the room from the gap between the body 1 and the fresh air module 8. This air supply method can take into account the introduction of fresh air and the stability of the indoor temperature to the greatest extent.

It will be understood by those skilled in the art that although some of the embodiments described herein include certain features, but not others, included in other embodiments, that combinations of features of the different embodiments are intended to be within the scope of the present invention And form different embodiments. For example, in the claims of this invention, any of the claimed embodiments may be used in any combination.

So far, the technical solutions of the present invention have been described with reference to the preferred embodiments shown in the accompanying drawings, however, those skilled in the art can easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims (10)

1. a kind of cabinet type air conditioner indoor set, which is characterized in that the cabinet type air conditioner indoor set includes:

Body is provided with air inlet and the first air outlet on the body, be provided in the body breeze fan, evaporator and Drip tray, the drip tray are set to the lower section of the evaporator；

Fresh air module, the fresh air module are set to below the body and connect with the body, set in the fresh air module It is equipped with air inlet and exhaust outlet, the air inlet is connected to by pipeline with outdoor, and the exhaust outlet is connected to the air inlet；

Wherein, the evaporator includes coil pipe, and the coil pipe includes the multiple sector structures radiated around from center, described more A sector structure is circumferentially distributed in same plane.

2. cabinet type air conditioner indoor set according to claim 1, which is characterized in that the coil pipe includes multiple branch pipes, described The inlet and outlet of multiple branch pipes is connected in parallel respectively, and the sector structure in each branch pipe is one another in series in inner end, Mei Gezhi The outboard end of sector structure in pipe is formed as arc-shaped or polygonized structure.

3. cabinet type air conditioner indoor set according to claim 1, which is characterized in that the evaporator includes more along the vertical direction The inlet and outlet of the layer coil pipe, coil pipe described in multilayer is connected in parallel respectively, the upstream of one layer of coil pipe in adjacent two layers coil pipe Section and tract are corresponding in the vertical direction with the tract of another layer of coil pipe and Upstream section respectively.

4. cabinet type air conditioner indoor set according to claim 1, which is characterized in that the drip tray includes circular discs and annular Disk, the circular discs are arranged above and below along the vertical direction with the annular disk, and are connected to by drainage tube therebetween.

5. cabinet type air conditioner indoor set according to claim 1, which is characterized in that the body includes cylindrical shell and setting Annular air outlet structure at the top of the cylindrical shell, the breeze fan, the evaporator and the drip tray are all set in In the cylindrical shell, first air outlet is formed in the annular air outlet structure.

6. cabinet type air conditioner indoor set according to claim 5, which is characterized in that the annular air outlet structure includes inner ring surface And outer ring surface, the outer ring surface are sheathed on the outside of the inner ring surface and enclose to set to form air-out chamber with the inner ring surface, the outer ring The front end in face and the front end of the inner ring surface are formed with first air outlet, the rear end of the outer ring surface and the inner ring surface Connection is closed between rear end,

The bottom end of the outer ring surface is additionally provided with ventilation hole, and the air-out chamber is connected by the ventilation hole and the cylindrical shell It is logical.

7. cabinet type air conditioner indoor set according to claim 6, which is characterized in that be additionally provided with second on the outer ring surface and go out Air port, first air outlet are configured with first flap mechanism, and second air outlet is configured with second flap mechanism, and described the One baffle mechanism is arranged to close or open first air outlet when movement, and the second flap mechanism is arranged to act When can close or open second air outlet.

8. cabinet type air conditioner indoor set according to claim 1, which is characterized in that the fresh air module include cylindrical shell and Fresh air fan and the shift drive mechanism being set in the cylindrical shell, the shift drive mechanism and the fresh air fan connect It connects, to drive the fresh air fan to rotate.

9. cabinet type air conditioner indoor set according to claim 8, which is characterized in that the shift drive mechanism includes driving electricity Than different gear sets, the driving wheel of the multiple gear set is fixedly connected on the output of the driving motor for machine and multiple teeth Axis, the driven wheel of the multiple gear set are fixedly connected on the shaft of the fresh air fan.

10. cabinet type air conditioner indoor set according to claim 1, which is characterized in that the body and the fresh air module it Between form gap, the exhaust outlet is set to the top of the fresh air module, and the air inlet is set to the bottom of the body, And/or

The cabinet type air conditioner indoor set further includes pedestal, and the fresh air module connects with the body and pedestal rotation respectively It connects.