JP2002081683A - Decorative panel of air conditioner, outlet unit, and air conditioner - Google Patents

Abstract

Abstract: PROBLEM TO BE SOLVED: To improve the structure of an air outlet (16) of an air conditioner so as to enable horizontal blowing by a horizontal blade (18) while performing a horizontal blowing (70). To prevent contamination. SOLUTION: The air outlet is such that the blowout direction of the conditioned air from both sides in the longitudinal direction of the air blowout port (16) is lower than the blowout direction in the central part in the longitudinal direction.
(16) constitute substantially both ends in the longitudinal direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative panel of an air conditioner, an outlet unit, and an air conditioner.
In particular, it relates to the structure of an air outlet.

[0002]

2. Description of the Related Art Conventionally, for example, in an air conditioner of a buried ceiling type or a duct type, a horizontal blade capable of changing a blowing direction of conditioned air up and down is provided at an air outlet. Then, while the blowing direction of the conditioned air is relatively downward during the heating operation by the horizontal blades, it is relatively upward during the cooling operation so as to be nearly parallel to the ceiling surface (so-called horizontal blowing). In the operating state, the temperature distribution in the room is made uniform to improve the air conditioning efficiency.

[0003] However, in the above horizontal blowing state,
Particulate dust contained in the blown-out air-conditioned air and dust contained in the indoor air may adhere to the ceiling surface, and the ceiling surface may be partially contaminated. See Figure 1
When the air conditioner is viewed from the horizontal direction as shown in FIG.
The airflow blown from the air outlet (a) in the horizontal blowing state has a substantially V-shape when viewed along the flow. here,
At the center in the longitudinal direction of the air outlet (a), the negative pressure becomes stronger due to the high speed of the air blowout, but due to the high flow speed and strong airflow, the air flows to the ceiling (b) near the outlet. Does not adhere.

On the other hand, the air from the end of the air outlet (a) blows at a low speed due to the low flow velocity, and is attached to the ceiling surface (b) near the outlet (a) by the negative pressure at the center. .
At this time, the dust in the slow airflow blown from the end of the air outlet (a) (the dust contained in the slow airflow from the end of the air outlet (a), and the slow airflow ) Are attached to the ceiling surface (b). For this reason, the dirt on the ceiling is substantially V-shaped and is formed on both sides of the air outlet (a) so as to move from both ends of the air outlet (a) toward the center as the distance from the air outlet (a) increases. Close area
(D) (see FIG. 2).

In order to avoid such stains, Japanese Patent Laid-Open Publication No. Hei 3-160266 discloses that horizontal wings are provided with detachable auxiliary fins for shifting the blowing direction to the ceiling side, and the auxiliary fins are attached to the ceiling dirt. There has been proposed a technique of attaching / detaching in accordance with the tendency of occurrence of the problem. In the air conditioner described in this publication, for example, in an environment where indoor air is very dusty and ceiling dirt is likely to occur, or in places where there is a particularly high need for dirt prevention, such as hospitals, the auxiliary fins are removed and horizontal blades are removed. On the other hand, auxiliary fins are mounted in an environment where ceiling dirt is unlikely to occur or where dirt prevention is not required so that horizontal blowing can be performed.

[0006]

However, even if the auxiliary fins are provided as in the above-mentioned conventional example, the auxiliary fins must be removed in an environment where ceiling dirt is likely to be generated. Since the conditioned air is always blown downward from the outlet, not only does air conditioning efficiency drop during the cooling operation, which should normally be done with horizontal blowing, but also the discomfort caused by the cool air being blown directly to the people in the room (So-called draft feeling) also occurs.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to improve the structure of an air outlet so that horizontal air can be blown out by horizontal blades. The purpose is to prevent dirt on the ceiling surface.

[0008]

According to the present invention, the shape of the air outlet is set such that the direction of air-conditioning air blowing from both longitudinal sides of the air outlet is lower than the direction of air blowing at the central portion in the longitudinal direction. Is an improvement of

Specifically, a solution taken by the present invention is to provide an air outlet (16) for blowing out conditioned air from a ceiling surface (70) toward a room space. A decorative panel and an air outlet unit of an air conditioner provided with horizontal blades (18) for adjusting the air blowing direction, an air conditioner on which the decorative panel (14) is mounted along a ceiling surface, and the air outlet The unit (51) is attached to the ceiling surface, and the air conditioner body (5
It is assumed that the air conditioner is connected to 3).

[0010] The air outlet (16) is configured such that substantially both ends in the longitudinal direction (that is, the vicinity of both ends) blow out conditioned air downward from a central portion in the longitudinal direction. For example, in a case where not only the outlet angle itself is changed at both ends and the center of the outlet (16), but also the outlet angle inside of the horizontal blade (18) in the outlet direction is set to be downward originally. In this case, the amount of downward airflow at both ends of the air outlet (16) may be increased.

In the above structure, the air outlet (16) has:
Guide surfaces (16b-s) for guiding the conditioned air so as to be blown downward from the central portion in the longitudinal direction can be provided at substantially both ends in the longitudinal direction.

In the above configuration, the air outlet (1
The guide surface (16b-s) of (6) is connected to the side wall (16) of the air outlet (16).
a, 16b) (16c, 16d), formed at substantially both ends in the longitudinal direction, and substantially both ends (16b-s) of the side walls (16a, 16b), (16c, 16d) of the air outlet (16) in the longitudinal direction. The angle between the ceiling surface (70) and the air outlet (1
6) Side wall (16a, 16b) (16c, 16d) longitudinal center (16b-c)
Can be configured to be larger than the angle formed between the ceiling surface (70).

Further, in the above configuration, the air outlet (1
The guide surface (16b-s) of (6) may be formed on the side wall (16a, 16b) corresponding to the upper surface of the horizontal blade (18) when the horizontal blade (18) is set to the horizontal blowing state. it can.

The guide surface of the air outlet (16) is provided when the horizontal blade (18) is set to the horizontal blow state.
The side wall (16c, 16d) corresponding to the lower surface side of (18) may be constituted. In this case, the side walls (16c, 16d)
In addition to making the angle of the air outlet (16) substantially different at both ends and the center in the longitudinal direction, the opening width of the air outlet (16) is made wider at both ends than the center in the longitudinal direction, so that the downward airflow May be increased. In other words, air outlet (16)
A guide surface that guides the conditioned air at substantially both ends in the longitudinal direction so as to blow downward from the central portion in the longitudinal direction is a horizontal blade.
Horizontal blade (18) when (18) is set to horizontal blowing state
When it is constituted by the side wall (16c, 16d) corresponding to the side to be the lower surface of the ceiling, generally, the side wall (16c, 16d) with respect to the ceiling surface (70)
Since the angle of the air outlet (16) is originally set to be relatively large, it is necessary to increase the downward airflow at both ends even if the opening of the air outlet (16) is made wider at both ends than at the center in the longitudinal direction. Can be.

With the above construction, the air outlet (16)
When air-conditioning air is blown out from the room into the room, during air-conditioning operation, the air outlet (16) whose blowing speed is relatively high
The air-conditioning air is blown downward at the longitudinal ends of the air outlet (16) having a relatively low blowing velocity while guiding the conditioned air in a substantially horizontal direction at the central portion of the air-conditioning device. . Therefore, at both ends of the air outlet (16), the flow rate of the conditioned air having a low initial blowing speed flowing along the ceiling surface is reduced. Also, during heating operation,
By adjusting the horizontal blade (18) downward, the conditioned air is blown downward from the entire air outlet (16) into the room.

Particularly, guide surfaces (16b-s) are provided at substantially both ends in the longitudinal direction of the air outlet (16), and the guide surfaces (16b-s) are provided.
If the angle of both ends of the side walls (16a, 16b) (16c, 16d) of the air outlet (16) is regulated, the simple structure can be used, but the ends of the air outlet (16) Is reliably blown downward.

Further, when the horizontal blade (18) is set in a horizontal blowing state, the guide surface (16b-s) having an angle regulated on the side wall (16a, 16b) corresponding to the upper surface of the horizontal blade (18). If provided, horizontal blades (18) at both ends of the air outlet (16)
As the guide surface (16b-s) comes closer to and the distance between the two becomes narrower, the conditioned air is reliably blown downward from the center. Also, the horizontal blade (18) and the guide surface (16b-
As the distance from the air outlet (s) is reduced, the flow rate of air blown from both ends of the air outlet (16) is also reduced.

Conversely, when the horizontal blade (18) is set to the horizontal blowing state, a guide surface having an angle is provided on the side wall (16c, 16d) corresponding to the lower surface of the horizontal blade (18).
By increasing the distance between the horizontal blades (18) and the guide surfaces of the side walls (16c, 16d) at both ends of the air outlet (16), the conditioned air is reliably blown downward from the center.

In the above structure, the air outlet (16)
Are the side walls (16a, 16b) (16c, 16d) having the guide surfaces (16b-s) when the horizontal blades (18) are set in the horizontal blowing state.
It is preferable that the central part (16b-c) in the longitudinal direction has an inclination corresponding to the horizontal blade (18). further,
Side wall (16a, 1) of air outlet (16) having guide surface (16b-s)
6b) (16c, 16d) is approximately at both ends from the longitudinal center (16b-c)
Up to (16b-s), the angle formed with the ceiling surface (70) can be configured to change continuously.

With the above configuration, when the horizontal blades (18) are set to the horizontal blowing state during a cooling operation or the like,
The air-conditioned air blown out from the air outlet (16) toward the room is the center of the longitudinal direction (16b-c) of the side walls (16a, 16b) (16c, 16d) of the air outlet (16) and the horizontal blades (16). 18) and the direction is changed smoothly, and it is blown out in a direction almost parallel to the ceiling surface (70). On the other hand, also at this time, at both ends of the air outlet (16), the conditioned air is blown downward toward the room.

In the above construction, the horizontal blade (18)
It is preferable that air-conditioning air be passed through the airflow upstream edge at substantially both ends in the longitudinal direction.For example, a part of the horizontal blade (18) may be cut out to provide an opening (18c). Can be.

According to this structure, when the horizontal blade (18) is set to the horizontal blowing state, the air at both ends of the air outlet (16) is discharged from the opening (18c) of the horizontal blade (18). Pass through. Therefore, while the air at the center of the air outlet (16) is blown out in the horizontal direction, the air at both ends is blown down more reliably.

In the air conditioner of the present invention,
Enlarged part (16L) where the opening length in the longitudinal direction expands at the part facing the indoor space at both ends in the longitudinal direction of the air outlet (16)
(See Fig. 9), guide surface of air outlet (16)
(16b-s) may be formed in a region substantially corresponding to the enlarged portion (16L) of the air outlet (16).

As described above, the enlarged portion (16L) is provided at the air outlet (16).
When the guide surface (16b-s) is not provided, the conditioned air that flows down the air passage (W) and hits the horizontal blades (18) from the central portion in the longitudinal direction to the enlarged portions ( After flowing toward (16L), the conditioned air is slowly blown out in a nearly horizontal direction.If a guide surface (16b-s) is provided in a region almost corresponding to the enlarged portion (16L), Air outlet (1
The air-conditioned air from both ends of 6) is blown downward as compared with the case where the guide surface (16b-s) is not provided.

[0025]

According to the above-mentioned means, during the cooling operation in which horizontal blowing of the conditioned air is required, air is blown out horizontally at the longitudinal center of the air outlet (16), while the air is blown out at both longitudinal ends. Since a part of the air is blown downward, it becomes difficult for the air from both ends in the longitudinal direction to flow along the ceiling surface (70). Therefore, the ceiling surface
The dirt of (70) can be prevented, and horizontal blowing can be secured as a whole. For this reason, it is possible to avoid the generation of dirt on the ceiling surface (70) while ensuring the blowing direction according to the operation state of the air conditioner.

The guide surfaces (16b-s) at substantially both ends in the longitudinal direction of the air outlet (16) are connected to the side walls at both ends of the air outlet (16).
If the angles of (16a, 16b) and (16c, 16d) are regulated, the structure can be simplified while reliably blowing down at both ends of the air outlet (16) to prevent ceiling dirt. realizable.

Further, when the horizontal blade (18) is set in the horizontal blowing state, a guide surface (16b-s) is provided on the side wall (16a, 16b) corresponding to the upper surface of the horizontal blade (18). At both ends of the air outlet (16), the horizontal blade (18) and the guide surface (1
6b-s), the flow rate of air blown from both ends of the air outlet (16) is also reduced, and the air at both ends of the air outlet (16) is Since it becomes difficult to be caught in the air of the part, it is possible to more reliably prevent ceiling dirt.

Conversely, when the horizontal blade (18) is set to the horizontal blowing state, even if the guide surface is provided on the side wall (16c, 16d) corresponding to the lower surface side of the horizontal blade (18), the air outlet (16)
It is possible to blow down the conditioned air downward from both ends of the air conditioner, thereby preventing ceiling dirt.

The side walls (16a, 16b) (16) of the air outlet (16)
(c, 16d), the central portion (16b-c) in the longitudinal direction is inclined so as to correspond to the horizontal blade (18) set in the horizontal blowing state. The ceiling can be prevented from being stained by making both ends downward, while reliably performing horizontal blowing.

Further, the side walls (16a, 16b) of the air outlet (16)
(16c, 16d) from the center in the longitudinal direction (16b-c) to both ends (16c, 16d).
bs), the angle between the ceiling surface (70) and the ceiling surface (70) changes continuously, so that the angle of the side wall (16b) changes smoothly, and the air outlet (16) is excellent in design. In addition, since there is no portion where the air blowing angle changes suddenly, turbulence of the airflow and the like hardly occur.

An opening (18c) through which air-conditioned air passes is formed at the airflow upstream edge at substantially both ends in the longitudinal direction of the horizontal blade (18).
When the horizontal blades (18) are set to the horizontal blowing state, air at both ends of the air outlet (16) is opened.
(18c), the air at the center of the air outlet (16) is blown out in the horizontal direction, while the air at both ends is blown down more reliably. Can be reliably prevented.

When there is an enlarged portion (16L) substantially at the longitudinal end of the air outlet (16), the guide surface (16b-s) of the air outlet (16) is connected to the air outlet (16). When formed in a region substantially corresponding to the enlarged portion (16L), the air flowing out from both ends of the air outlet (16) is easily blown downward, so that the effect of preventing ceiling dirt can be enhanced.

[0033]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a longitudinal sectional view showing the structure of the ceiling-mounted air conditioner (1) according to the present embodiment. As shown in the figure, this air conditioner (1) has a fan (20) and a heat exchanger (30) housed in a casing (10), and has an opening in a ceiling plate (ceiling surface) (70). It is embedded in the opening for installation (71), and is installed in the space above the ceiling.

The casing (10) includes a box-shaped main casing (11) that opens downward, and a main casing (11).
A decorative panel (14) that covers the bottom opening of (11), and is suspended and fixed to an upper beam or the like by a suspender (not shown). Specifically, the main body casing (11) has a top plate (12) formed by cutting out four corners of a square in a chamfered shape and having an octagonal shape (not shown), and extends downward from an outer edge portion of the top plate (12). And a side plate (13).
The decorative panel (14) has a substantially square plate shape and is attached to the lower end of the side plate (13) of the main casing (11). The decorative panel (14) is mounted along the ceiling plate (70) such that the peripheral edge thereof abuts on the lower surface of the ceiling plate (70).

As shown in FIG. 2, which is a perspective view of the state in which the air conditioner (1) is installed on the ceiling, the air is substantially open at the center of the decorative panel (14) so as to open in a square shape. A suction port (15) is formed, and four elongated air outlets (16) are formed along each of four sides of the air suction port (15). Then, the air inlet (1
5) is provided with an air filter (17) over its entire surface for removing suspended matters such as particulate dust contained in room air, and the entire lower surface of the air filter (17) is formed in a grid. Supported by the filter cover.

The air outlet (16) of the decorative panel (14) has an outer guide surface (16a, 16b) which is a side wall on the outer peripheral side (right side in the figure) of the air passage and an inner peripheral side (left side in the figure). ) Are formed between the inner guide surfaces (16c, 16d) which are side walls. Approximately both ends in the longitudinal direction of the air outlet (16) are configured to blow out the conditioned air downward from the central part in the longitudinal direction. For this reason, the air outlet (16) has guide surfaces (16b-s) at substantially both ends in the longitudinal direction for guiding the conditioned air so as to blow out downward from the central part in the longitudinal direction. The guide surface (16b-s) of the air outlet (16) is formed by substantially both ends in the longitudinal direction of one side wall (16a, 16b) of the air outlet (16). The angle between the longitudinally opposite ends (16b-s) and the ceiling surface (70) is smaller than the angle between the longitudinally central portion (16b-c) of the side walls (16a, 16b) and the ceiling surface (70). Is also configured to be large.

Specifically, as shown in FIGS. 3 and 4 in an enlarged manner, first, the outer guide surfaces (16a, 16b) have a first outer guide surface (16a) extending substantially vertically downward, and 1 outer guideway (1
6a) from the lower end to the lower surface of the decorative panel (14), and a second outer guide surface (16b) inclined obliquely downward toward the outer peripheral side of the panel, and both outer guide surfaces (16a, 16b) are mutually smooth. It is connected.

The second outer guide surface (16b) is provided with an air outlet (16).
The central part (16b-c) located at the central part in the longitudinal direction of the air outlet (16) is set at a relatively small angle (about 30 degrees) with respect to the ceiling surface (70). Both ends (16b-s) located at substantially both ends are set at a relatively large angle (about 60 degrees) with respect to the ceiling surface (70). A portion having a large angle with respect to the ceiling surface (70) is formed as the guide surface (16b-s).

The second outer guide surface (16b) has a central portion (16b-c).
The slope gradually changes from the top to both ends (16b-s), and the angle formed with the ceiling surface (70) changes continuously. And
As shown in FIG. 5, which is a perspective view of the air outlet 16 as viewed from below, the lower edge (16b-e) of the second outer guide surface (16b) is formed in an arc shape.

On the other hand, as shown in FIGS. 3 and 4, the inner guide surfaces (16c, 16d) have a first inner guide surface (16c) extending substantially vertically downward, and the first inner guide surface (16c). A second inner guide surface (16d) gently inclined obliquely downward from the lower end toward the outer peripheral side of the panel, and both inner guide surfaces (16c, 16d).
Are smoothly connected to each other.

The outer guide surfaces (16a, 16b) are formed on the outer member (14a) of the decorative panel (14), and the inner guide surfaces (16c, 16d) are formed on the inner member (14b) of the decorative panel (14). ing. The air outlet (16) is connected to these outer guide surfaces (1) as described above.
6a, 16b) and the inner guide surfaces (16c, 16d). The air outlet (16) has horizontal blades (18) that can adjust the blowing direction of the conditioned air up and down.
It is disposed between the outer guide surfaces (16a, 16b) of the inner member (14a) and the inner guide surfaces (16c, 16d) of the inner member (14b). The guide surface (16b-s) of the air outlet (16) is located on the side that becomes the upper surface of the horizontal blade (18) when the horizontal blade (18) is set in the horizontal blowing state.

The horizontal blade (18) is a long plate member as shown in FIG. 6, and is slightly curved in the width direction. At both ends in the longitudinal direction of the horizontal blade (18),
Arms (18a, 18a) protruding from the inner surface side of the horizontal blade (18) are provided integrally, and an end of each arm (18a) is provided along the longitudinal direction of the horizontal blade (18). A connection pin (18b, 18b) is formed extending in the direction. The horizontal blade (18) is attached to the air outlet (16) so as to be swingable about the connecting pins (18b, 18b). Specifically, the horizontal pin (18) is connected to the connecting pin (1) by a motor (not shown).
8b, 18b).
In the above configuration, when the conditioned air is blown out most downward, the horizontal blades (18) are set downward as shown in FIG. 4, while when the so-called horizontal blowout state is set, the horizontal blades (18) are blown out as shown in FIG. Set 18) upward.

A notch (18c) is formed at the airflow upstream end at substantially both ends in the longitudinal direction of the horizontal blade (18) as an opening through which conditioned air passes. This notch (18c)
Is approximately one-fourth the length of the horizontal blade 18 in the longitudinal direction, and is formed at the airflow upstream edge at substantially both ends in the longitudinal direction. By providing the notch (18c), the horizontal blade (18) is formed in a shape in which the width of both ends (18e) is smaller than that of the central portion (18d) by about two thirds. The specific dimensions of the horizontal blade (18) are, for example, about 480 mm in total length,
The width (width of the central part (18d)) is about 37 mm, and both ends (18
e) about 25mm in width and notch (18c) about 120m in length
m.

The outer guide surfaces (16a, 16b) have a central portion curved substantially in the same manner as the cross-sectional shape of the horizontal blade (18) (not limited to the curved shape, but generally along the horizontal blade (18)). Shape). That is, when the horizontal blade (18) is set to the horizontal blowing state, the air outlet (16) has the side wall (16a, 16b-c) at the central portion in the longitudinal direction inclined corresponding to the horizontal blade (18). (Almost the same inclination as the horizontal blade (18) as a whole). On the other hand, the inner guide surface (16c, 16
d) is generally the outer guide surface (16a, 16a) of the outer member (14a).
It is formed so as to extend vertically below b). The shape of the inner guide surfaces (16c, 16d) may be arbitrarily selected.

Then, the two opposing wall surfaces (outer guide surfaces (16a, 16b) and inner guide surface (16
c, 16d)) is formed over the entire length of the air outlet (16) in the longitudinal direction (the direction perpendicular to the plane of the paper), and has both wall surfaces (16, 16d).
a, 16b) and (16c, 16d) have an air passage (1
It has a function of a runway that changes the direction of the conditioned air flow while adjusting it toward 6).

On the other hand, the fan (20) is
It is provided at a substantially central position inside (11). This fan has a blade between the shroud (21) and the hub (22).
This is a so-called turbo fan in which (23) is held. The top plate (1) of the main casing (11) is attached to the hub (22) of the fan (20).
A drive shaft (26) of a fan motor (25) attached to 2) is inserted and fixed, and the fan (20) is rotationally driven by the driving force of the fan motor (25). ), The air sucked in from below is sent radially to the side. An air inlet is located below the fan (20).
The air that has flowed into the casing (10) from (15) is passed through the fan (20).
A bell mouth (27) is provided to guide the user.

The heat exchanger (30) is a so-called cross made up of a number of plate-like fins (31) provided in parallel with each other and a heat transfer tube (32) provided through the fins (31). Fin heat exchanger. The heat exchanger (30) is formed in a tubular shape having a rectangular shape in plan view so as to surround the fan (20), and is connected to an outdoor unit via a refrigerant pipe (not shown). The heat exchanger (30) serves as an evaporator during cooling operation,
In the heating operation, it functions as a condenser and regulates the temperature state of the air sent from the fan (20). And
A drain pan (33) for receiving drain water is disposed below the heat exchanger (30).

With the above configuration, the air inlet (1) of the decorative panel (14) is provided in the main body casing (11) of the air conditioner (1).
5) From air filter (17), bell mouth (27), fan (20)
Further, an air flow passage (W) extending to the air outlet (16) through the heat exchanger (30) is formed. And when the air conditioner is running,
When (20) is driven, the air filter (1
The indoor air taken into the casing (10) through the airflow passage (W) through the bell mouth (27), the fan (20) and the heat exchanger (30) in this order through the heat exchanger (10). In 30), heat is exchanged with the refrigerant to control the temperature (cooling in cooling operation, heating in heating operation), and then blown out as air-conditioned air from the air outlet (16) into the indoor space. Thus, air conditioning of the indoor space is performed.

Here, when there is a request to blow the conditioned air relatively downward, such as during a heating operation, the horizontal blades (18) are turned substantially vertically downward as shown in FIG.
The conditioned air is supplied to the side wall (16a, 1
6b) and the inner side wall (16c, 16d) of the panel
In accordance with 8), the air is blown downward as shown by an arrow S in FIG.

On the other hand, when a so-called horizontal blow-out state is set during a cooling operation or the like, as shown in FIG. 3, the horizontal blade (18) is turned upward to rotate the upper surface (1) of the horizontal blade (18).
8f) is made substantially parallel to the central portion (16b-c) of the second outer guide surface (16b) of the air outlet (16). In this way, the conditioned air flows in a curved manner along the central portion (18d) of the horizontal blade (18) at the central portion of the air outlet (16), and the direction of the streamline changes smoothly and smoothly. Then, as shown by an arrow S1 in the figure, a second outer guide surface on the outer peripheral side of the panel of the air outlet (16).
(16b-c) and the horizontal blade (18),
The air is blown out from 6) at an angle close to being parallel to the lower surface of the ceiling plate (70) (for example, the angle formed with the lower surface of the ceiling plate (70) is approximately 30 ° to 35 °).

At both ends of the air outlet (16), part of the conditioned air flowing downward in the air flow passage (W) flows downward in the direction of arrow S3 below arrow S1. This is because the angle between the guide surface (16b-s) at both ends of the air outlet (16) and the ceiling surface (70) is large, and the horizontal blade (18) is
(16b-s) and the distance between them is getting smaller. Also, at both ends of the air outlet (16),
Since the distance between the horizontal blade (18) and the guide surface (16b-s) is small, the flow rate of air flowing in the direction of arrow S3 is also small. Further, at both ends of the air outlet (16), another part of the conditioned air flowing downward in the air flow passage (W) is cut off at both ends (18e) of the horizontal blade (18) (18c). ), And is blown downward as shown by an arrow S2 in FIG. From the above, at both ends of the air outlet (16),
It becomes difficult for air to flow along the ceiling surface (70).

Therefore, conventionally, for example, in an air conditioner of a ceiling-embedded type, in a portion where the air blowing speed is low (both ends of the air outlet (16)), the air flow is increased by the ceiling plate (7).
0) because it easily adheres to the lower surface of the horizontal blade (18) during cooling operation.
When the blowing direction of the conditioned air is relatively directed upward, for example, by about 30 to 35 ° with respect to the lower surface of the ceiling plate (70), the air flow flows along the lower surface of the ceiling plate (70), In the area (D) shown by the phantom line in FIG. 2, ceiling dirt is generated, and the ceiling dirt is distributed almost in a V-shape for each air outlet. According to the device (1), the air blown out from both ends of the air outlet (16) is less likely to flow along the lower surface of the ceiling plate (70), particularly during a cooling operation in which horizontal blowing of the conditioned air is required. Therefore, even if the blowing direction of the conditioned air from the air outlet (16) is brought close to the lower surface of the ceiling plate (70) by about 30 to 35 ° with the horizontal blades (18) at the center of the air outlet, for example, The generation of dirt can be prevented.

Therefore, the air conditioner of this embodiment
According to (1), especially in the cooling operation in which horizontal blowing of the conditioned air is required, the direction of the conditioned air blowing can be made closer to the horizontal direction than before, while preventing ceiling dirt. Thereby, the air conditioning efficiency can be ensured and the sense of discomfort (draft feeling) of the indoor occupants can be eliminated.

Further, in this embodiment, the notch (18c) of the horizontal blade (18) is formed only in a region of about one quarter of both ends (18d) of the horizontal blade (18). As a whole, horizontal blowing can be sufficiently satisfied while preventing ceiling dirt.

[0056]

Other Embodiments of the Invention The present invention is not limited to the above embodiment, but includes other various embodiments.

For example, in the above embodiment, the air outlet (1
6) Guide surfaces (1) only at approximately both ends of the outer guide surfaces (16a, 16b).
Although 6b-s) is provided, the side walls at both ends of the inner guide surfaces (16c, 16d) may also have a function of a guide surface by changing the inclination. For example, the inner guide surface (16c, 16c) of the air outlet (16)
d) and the ceiling surface make an angle between the inner guideway (16
c, 16d) may be larger than the angle formed by the central portion and the ceiling surface, and substantially both ends of the inner guide surfaces (16c, 16d) may be used as guide surfaces. Even in this case, since the air can be blown downward from both ends of the air outlet (16), ceiling dirt can be prevented.

In the above embodiment, the air outlet (16)
Although the outer guide surfaces (16a, 16b) of the first and second end portions have a continuously changing angle between the central portion and both end portions, other modes such as a stepwise change are possible. In that case,
The lower edge of the second outer guide surface (16b) or the second inner guide surface (16d) is not arc-shaped, but may be trapezoidal or another shape.

Further, for example, not only the blowing angle itself is changed at both ends and the center of the blowing port (16), but also the blowing direction outside the horizontal blade (18) (the outer guide surface (16a, 16b) side), if the blowout angle on the inner side (inside guideway (16c, 16d) side) is originally set downward, The air volume may be increased. In other words, the angle of the inner guide surfaces (16c, 16d) is not only different at both ends in the longitudinal direction and at the center, but also the air outlet (16)
May be made wider at both ends than at the center in the longitudinal direction to increase the downward airflow.

As described above, the present invention only needs to be configured so that substantially both ends in the longitudinal direction of the air outlet (16) blow out the conditioned air downward from the central portion in the longitudinal direction. As long as it is configured, means other than the guide surface may be used.

In the above-described embodiment, the present invention is applied to the so-called ceiling-mounted four-way blow-type air conditioner (1) having a turbofan and blowing conditioned air in four directions, but is not limited to this. Instead, for example, the present invention can also be applied to a so-called ceiling embedded two-way blow type air conditioner that blows out conditioned air in two directions.

Further, the present invention can be applied not only to a ceiling-mounted type air conditioner but also to a duct type air conditioner. As shown in FIG. 7, a duct type air conditioner (50)
Is the outlet unit (51) attached to the ceiling plate (70)
This is an air conditioner connected to an air conditioner body (53) installed on the roof of a building or the like via a ventilation duct (52). Also in the air outlet unit (51) of the air conditioner (50), the guide surface (1) is provided at substantially the longitudinal end of the air outlet (16).
By restricting the blowing direction by providing 6b-s) or the like, the same effect as in the above embodiment can be obtained.

In the above embodiment, the notch (18c) is formed as an opening at substantially both ends (18e) of the horizontal blade (18), but the opening (18c) is not necessarily provided. .
Even when an opening is provided, a through hole may be provided in the horizontal blade (18) instead of the notch (18c), and air is blown downward from both ends of the air outlet (16) at the time of horizontal blowing. What is necessary is just a structure. In other words, horizontal blade (18)
Are horizontal blades (1
8) Downward airflow flowing to the negative pressure side (the back side of the horizontal blade (18) (the inner guide surface (16c, 16d) side of the air outlet (16), that is, the inner side in the blowing direction)) (Fig. 3 (S2) It is preferable that the airflow upstream side edge is formed in a shape that increases the number of reference airbags), but this is not always necessary.

The shape and dimensions of the horizontal blade (18) and the like,
The shape and dimensions of the notch (opening) (18c) are merely examples, and it is of course possible to appropriately change the shape and size according to the shape of the embodiment.

When the opening (18c) is formed as a notch, the notch (18c) is formed, for example, in a shape as shown in FIGS. 8 (a) to 8 (c), which shows the end of the horizontal blade (18). be able to.
FIG. 8 (a) shows an example in which the airflow upstream edges at substantially both ends in the longitudinal direction of the horizontal blade (18) are formed in an arc shape, and FIG. 8 (b) shows the airflow upstream edges as linear. Example formed obliquely, FIG.
FIG. 8C shows an example in which the upstream edge of the airflow is formed in an arc shape opposite to that of FIG.

Further, instead of the opening (18c), the end of the horizontal blade (18) is connected to the horizontal blade (18) as shown in FIG.
The shape may be three-dimensionally twisted so that the airflow upstream edge gradually rises from the center in the longitudinal direction toward both ends. In this case, since it is difficult for the air to peel off at the end of the horizontal blade (18), there is also an advantage that it is difficult for the surrounding warm air to be drawn into the end of the horizontal blade (18), and dew condensation hardly occurs.

As shown in FIG. 9, for example, in a ceiling-mounted air conditioner, pipes and electrical component boxes are arranged at corners in a main body casing (11), while a decorative panel (1) is provided.
In case 4), it is necessary to make the shape of the blow-out openings the same for all four for the reason of the appearance, so when the opening length in the longitudinal direction of the air passage is different between the body casing (11) side and the decorative panel (14) side There is. In such a case, the air outlet (16) has, at its longitudinal end, an enlarged portion that expands in the longitudinal direction of the air outlet (16) at a portion facing the indoor space with the opening length of the air passage.
(16L) will be formed. The length of the enlarged portion (16L) varies depending on the air outlet.

Therefore, the guide surface (16b-s) and the opening (18c) or the opening (18c) such as a notch formed at the airflow upstream edge at substantially both ends in the longitudinal direction of the horizontal blade (18). The portion corresponding to 18c) may be formed in a region substantially corresponding to the enlarged portion (16L) of the air outlet (16). When there is no guide surface (16b-s) or opening (18c) or when it is short, horizontal blades (18)
Blowing air tends to stay at both ends of the
6L) makes it easier for air to be blown out in the horizontal direction, but if these are formed to correspond approximately to the enlarged portion (16L),
Since the amount of air remaining in the enlarged portion (16L) can be reduced at both ends in the longitudinal direction of the horizontal blade (18), ceiling dirt can be prevented.
This is the same for the duct type air conditioner (50).

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of an embedded ceiling air conditioner according to an embodiment of the present invention.

FIG. 2 is a perspective view of the air conditioner installed on the ceiling as viewed from below.

FIG. 3 is an enlarged structural view of an air outlet, showing a state in which a blowing direction of conditioned air is set to horizontal blowing.

FIG. 4 is a diagram showing a state in which the blowing direction of the conditioned air is set to a downward blowing in FIG.

FIG. 5 is a perspective view of the air outlet viewed from below.

FIG. 6 is a perspective view of a horizontal blade.

FIG. 7 is a schematic configuration diagram of a duct type air conditioner.

8 (a) to 8 (d) are perspective views showing the shape of the opening of the horizontal blade.

FIG. 9 is a partial perspective view when an enlarged portion is provided at an air outlet.

FIG. 10 is an explanatory diagram showing a state of a blown airflow of conditioned air from an air outlet when a conventional air conditioner is viewed from a side.

[Explanation of symbols]

 (1) Air conditioner (10) Casing (11) Main casing (14) Decorative panel (15) Air inlet (16) Air outlet (16a, 16b) Side wall (16b-c) Longitudinal center of side wall ( 16b-s) Both ends in the longitudinal direction of the side wall (guide surface) (16L) Enlarged part (18) Horizontal blade (18c) Notch (opening) (20) Fan (30) Heat exchanger (50) Air conditioner (51 ) Air outlet unit (52) Ventilation duct (53) Air conditioner body (70) Ceiling panel (ceiling surface)

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Taku Hirakawa 1304 Kanaokacho, Sakai-shi, Osaka Daikin Industries Inside Kanaoka Plant of Sakai Seisakusho Co., Ltd. (72) Inventor Toru Shigesawa 1304 Kanaokacho, Sakai-shi, Osaka Daikin Industries, Ltd. 3L051 BG06 BH06 F-term in Sakai Plant Kanaoka Plant

Claims (20)

[Claims] An air outlet (16) for blowing conditioned air from a ceiling surface (70) toward an indoor space is provided.
6), horizontal blades (18) for adjusting the blowing direction of conditioned air
Wherein the air outlet (16) is configured such that substantially both ends in the longitudinal direction blow out the conditioned air downward from the central portion in the longitudinal direction. Equipment decorative panel. 2. The air outlet (16) has guide surfaces (16b-s) at substantially both ends in the longitudinal direction for guiding the conditioned air so as to blow out downward from the central part in the longitudinal direction.
The decorative panel of the air conditioner according to any one of the preceding claims. The guide surface (16b-s) of the air outlet (16) is
The air outlet (16) is formed at substantially both ends in the longitudinal direction of the side walls (16a, 16b) (16c, 16d), and the side of the side wall (16a, 16b) (16c, 16d) of the air outlet (16) The angle between the two ends (16b-s) and the ceiling surface (70) is substantially equal to the longitudinal center (1) of the side wall (16a, 16b) (16c, 16d) of the air outlet (16).
3. The decorative panel for an air conditioner according to claim 2, wherein the decorative panel is configured to be larger than an angle between 6b-c) and the ceiling surface (70). 4. The guide surface (16b-s) of the air outlet (16) is
4. The decorative panel of an air conditioner according to claim 3, wherein the decorative panel is constituted by side walls (16a, 16b) corresponding to the upper surface of the horizontal blade (18) when the horizontal blade (18) is set in a horizontal blowing state. 5. The guide surface of the air outlet (16) is a horizontal blade.
Horizontal blade (18) when (18) is set to horizontal blowing state
4. The decorative panel for an air conditioner according to claim 3, wherein the decorative panel is constituted by side walls (16c, 16d) corresponding to the side to be the lower surface of the panel. 6. The air outlet (16) is provided with a longitudinal portion of a side wall (16a, 16b) (16c, 16d) having a guide surface (16b-s) when the horizontal blade (18) is set in a horizontal blowing state. Direction center (16b-c)
The decorative panel of the air conditioner according to any one of claims 2 to 5, wherein the decorative panel is configured to have an inclination corresponding to the horizontal blade (18). 7. An air outlet (1) having a guide surface (16b-s).
The side wall (16a, 16b) (16c, 16d) of (6) is located at the center in the longitudinal direction (16b-
The makeup of an air conditioner according to any one of claims 3 to 6, wherein an angle formed with the ceiling surface (70) continuously changes from c) to substantially both end portions (16b-s). panel. 8. The air conditioner according to claim 2, wherein the horizontal blades (18) are configured such that the conditioned air passes through the airflow upstream edge at substantially both ends in the longitudinal direction. Decorative panel. 9. An air outlet (16) for blowing conditioned air from a ceiling surface (70) toward a room space, wherein the air outlet (1) is provided.
6), horizontal blades (18) for adjusting the blowing direction of conditioned air
An air outlet unit of an air conditioner provided with: The air outlet (16) is configured such that substantially both ends in the longitudinal direction are configured to blow out conditioned air downward from a central portion in the longitudinal direction. The outlet unit of the harmony device. 10. The air outlet (16) has guide surfaces (16b-s) at substantially both ends in the longitudinal direction for guiding the conditioned air so as to blow out downward from the central part in the longitudinal direction.
The outlet unit of the air conditioner as described in the above. 11. A guide surface (16b-s) of an air outlet (16).
Are formed at substantially both ends in the longitudinal direction of the side walls (16a, 16b) of the air outlet (16), and substantially both ends in the longitudinal direction of the side walls (16a, 16b) (16c, 16d) of the air outlet (16). (16b-s) and the ceiling surface (70) make an angle between the longitudinal center (1) of the side walls (16a, 16b) (16c, 16d) of the air outlet (16).
The air outlet unit for an air conditioner according to claim 10, wherein the angle is larger than an angle between 6b-c) and the ceiling surface (70). 12. A guide surface (16b-s) of an air outlet (16).
The side wall (16a, 16b) corresponding to the side that becomes the upper surface of the horizontal blade (18) when the horizontal blade (18) is set in the horizontal blowing state
The air outlet unit for an air conditioner according to claim 11, comprising: 13. The guide surface of the air outlet (16) is arranged such that when the horizontal blade (18) is set in a horizontal blowing state, the horizontal blade (1)
The air outlet unit for an air conditioner according to claim 11, further comprising a side wall (16c, 16d) corresponding to the lower surface side of (8). 14. The air outlet (16) is provided with a side wall (16a, 16b) (16c, 16d) having a guide surface (16b-s) when the horizontal blade (18) is set in a horizontal blowing state. Direction center (16b-
The air outlet unit for an air conditioner according to any one of claims 10 to 13, wherein c) is configured to have an inclination corresponding to the horizontal blade (18). 15. An air outlet having a guide surface (16b-s).
The side wall (16a, 16b) (16c, 16d) of (16) is located at the longitudinal center (16b
11. The structure in which the angle formed with the ceiling surface (70) changes continuously from -c) to substantially both ends (16b-s).
15. The air outlet unit for an air conditioner according to any one of items 14 to 14. 16. The air conditioner according to claim 10, wherein the horizontal blades (18) are configured so that the conditioned air passes at the airflow upstream edge at substantially both ends in the longitudinal direction. Outlet unit. 17. An air conditioner comprising a decorative panel (14) mounted along a ceiling surface, wherein the decorative panel (14) is constituted by the decorative panel according to any one of claims 1 to 8. Air conditioner. 18. An air conditioner comprising a decorative panel (14) attached along a ceiling surface, wherein the decorative panel (14) is constituted by the decorative panel according to any one of claims 2 to 8. The air outlet (16) has, at substantially both ends thereof, an enlarged portion (16L) in which a longitudinal opening length increases at a portion facing the indoor space, and a guide surface of the air outlet (16). (16b-s) is the air outlet (16)
The air conditioner is formed in the area almost corresponding to the enlarged part (16L). 19. An air outlet unit (51) attached to a ceiling surface is connected to an air conditioner main body (5) through an air duct (52).
An air conditioner connected to (3), wherein the outlet unit (51) is constituted by the outlet unit according to any one of claims 9 to 16. 20. An air outlet unit (51) attached to a ceiling surface is connected to an air conditioner main body (5) through a ventilation duct (52).
An air conditioner connected to (3), wherein the outlet unit (51) is constituted by the outlet unit according to any one of claims 10 to 16, wherein the air outlet (16) is substantially At both ends, there is an enlarged portion (16L) in which the longitudinal opening length increases at a portion facing the indoor space, and the guide surface (16b-s) of the air outlet (16) is )
The air conditioner is formed in the area almost corresponding to the enlarged part (16L).