JPH06221611A - Air-conditioner embedded in ceiling - Google Patents

Abstract

PURPOSE:To obtain an air-conditioner embedded in ceiling, capable of making the external appearance of the same look more attractive by mounting the main body of the air-conditioner on a module ceiling and capable of improving the mounting workability of the same by covering the edges of a decorative panel of the air-conditioner with the outer periphery of the main body of the air-conditioner and setting the outer periphery of the main body between frames. CONSTITUTION:Frames 26, each having a cross-sectionally inverted T-shape, are parallel-arranged with each other in parallel with a ceiling-plane and boarded up with ceiling boards 5 leaving no gap among the boards and the frames 26. The number of wires 7 for supporting the frames 26 on ceiling slabs is suitably adjusted so that weight bearing on the frames 26 can be safely borne by the wires. The casing 2 of an air-conditioner has a size that can be accommodated between the paired frames 26, and a decorative panel 24 is housed in the casing 24 while the edges of the decorative panel 24 are covered by flanges 29. The mounting of the air-conditioner can be accomplished by merely setting the main body of the same on the frames 26, and the work is simple. Further, since the decorative panel 24 is not projected from the ceiling boards 5, a sense of oppression is not given to users.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling-embedded air conditioner.

[0002]

2. Description of the Related Art Conventionally, as a kind of air conditioner, a cabinet (housing) housing a blower and a heat exchanger is suspended from a ceiling slab by hanging metal fittings and buried in the ceiling. Built-in air conditioners are widely used.

FIGS. 13 to 16 show the actual performance of Shoko 63-77.
An example of a conventional air conditioner of this type disclosed in Japanese Patent Publication No. 70 is shown. 13 is a schematic perspective view of a ceiling mounting structure, FIG. 14 is a transverse sectional view of the air conditioner, FIG. 15 is a longitudinal sectional view of the same, and FIG. 16 is an enlarged sectional view taken along line AA of FIG.

In each figure, an air conditioner 1 has a housing 2
Is suspended from the ceiling slab 3 by a plurality of suspension fittings 4, and a part of the housing 2 is exposed from the ceiling plate 5 to a room and is shielded in the ceiling back space 6. A blower 8 directly connected to the motor 7 is housed in the center of the housing 2.
A pair of heat exchangers 9 to which refrigerant circulation pipes are connected are arranged on both sides thereof. A suction port 10 provided on a decorative panel 24 below the blower 8 and air outlets 11 on both sides of the suction port 10 are opened in the indoor exposed portion of the housing 2, and a drain pump cover is provided at one corner of the housing 2. A drain pump chamber 13 covered with 12 is fixed with screws via a packing 14.

Reference numeral 15 denotes a drain pan for receiving and discharging drain water generated during heat exchange by the heat exchanger 9, and extending along the lower side of both heat exchangers 9 and the housing side plate 16 on the drain pump chamber 13 side. It is formed in a U-shape in plan view so as to communicate with the location, and is inclined so as to become lower toward the drain pump chamber 13 side. Case side plate 16
At the boundary between the housing 2 and the drain pump chamber 13, a lower half portion is opened to provide a communication hole 17, and a part of the drain pan 15 is inserted into the communication hole 17.
A drain tank 18 is provided at the bottom of the drain pump chamber 13 so as to communicate with the drain pan 15. Inside the drain tank 18, the drain tank 1 is provided.
A drain pump 19 for pumping up drain water accumulated and stored in the tank 8 is provided, and a drain pipe 21 having a drain outlet 20 connected to the outside by a pipe is connected to a drain port of the drain pump 19. The outside of the housing 2 and the drain pump cover 12 are covered with heat insulating materials 22 and 23.

In the conventional air conditioner configured as above, when the refrigerant is circulated and the motor 7 is started, the warm air in the room sucked from the suction port 10 by the blower 8 passes through the heat exchanger 9. Cooling operation is performed by exchanging heat with the refrigerant, cooling and dehumidifying, and forming cool air by blowing out from the air outlet 11 into the room. The drain water generated by the dehumidifying action of the heat exchanger 9 is received by the drain pan 15, flows into the drain tank 18, is stored therein, and is then pumped up by the drain pump 19 and drain pipe 21.
And is discharged outside the room through a pipe connected to the drain outlet 20.

As described above, the ceiling-embedded air conditioner in the illustrated example is required to be as low as possible in terms of being housed in the ceiling 6 and to drain drain water smoothly. A drain pump 19 is provided and its drain outlet 2
0 is located at a high place.

Further, as shown in FIGS.
Fig. 13 shows another conventional air conditioner disclosed in Japanese Patent No. 13210, in which the same or corresponding components as those in Fig. 13 to Fig. 16 are designated by the same reference numerals, and a duplicated description thereof will be omitted. The heat exchanger 9 in the present example is formed in a horizontal shape alone as compared with the conventional example, and the drain pan 15 is formed in an I shape in a horizontal direction below the heat exchanger 9. That is, according to this conventional example, the air conditioner has a narrow width and is horizontally long.

Furthermore, FIGS. 19 and 20 are a side view of a decorative panel 24 of another conventional air conditioner disclosed in Japanese Utility Model Laid-Open No. 62-120151 and an outlet 11 provided in the decorative panel 24. FIG. 2 is a partially enlarged vertical cross-sectional view,
The components that are the same as or correspond to those in FIGS. 13 to 18 of the example are denoted by the same reference numerals, and duplicate description of each component will be omitted.

25 in FIGS. 19 and 20 of this example is
The blown air sent from the blower 8 flows along the ceiling plate 5, and the blown air 25 causes room air between the blown air 25 and the ceiling plate 5 to flow from the ceiling plate 5 to the decorative panel 24.
The air flows in the direction of the air outlet 11 provided in the above, and becomes the entrainment wind as shown by 26.

[0011]

Since the air conditioner of the conventional example is constructed as shown in the above examples, the decorative panel 24 is installed so as to come into contact with the ceiling plate 5 when the air conditioner is installed. If it is not, the aesthetic appearance will be impaired, and in the modular ceiling where T-shaped frames are arranged at a predetermined constant interval used for the system ceiling, since other devices such as lighting equipment do not protrude from the ceiling surface, a decorative panel for an air conditioner. The protrusion of 24 spoiled the aesthetics of the entire room. Further, also in terms of installability, the work of suspending the housing 2 by the plurality of suspension fittings 4 was extremely inefficient.

Further, the drain pan 15 of the conventional air conditioner disclosed in the above Japanese Utility Model Publication No. 2-13210 shown in FIGS. 17 and 18 is inclined to allow drain water to flow to the drain pump 19 side. However, as the air conditioner main body becomes horizontally long, the height dimension due to this inclined surface increases, and the height dimension of the air conditioner main body increases. For this reason,
When the size of the ceiling 6 (see FIG. 13) is small, there is a problem that installation cannot be performed.

Furthermore, since the installation position of the drain pump 19 is located on the side surface of the air conditioner as shown in FIG. 14 and is inside the drain pump chamber 13 covered with the housing side plate 16, it is collected in the drain water. In the event of a failure such as clogging of the drain pump 19 which is caused by a lint or a drain sludge, replacement work of the drain pump 19 involves removal of the decorative panel 24 and removal of the housing side plate 16, and the workability is poor. It was

Further, since the position of the drain pump 19 is on the side surface of the air conditioner, it is difficult to route the drain pipe from the drain outlet 20 when the drain is discharged to the opposite surface side to the opposite side. There was a problem.

Furthermore, in the conventional air conditioner disclosed in the Japanese Utility Model Publication No. 62-120151 shown in FIGS. 19 and 20, the surroundings of the air outlet 11 by the air-conditioned air blow 25. When the generated air is pulled and the generated entrainment air 26 comes into contact with the surface of the decorative panel 24, the moisture contained in the entrainment air 26 condenses on the surface of the decorative panel 24.

When the position of the outlet 11 is close to the ceiling plate 5, when the entrained air 26 comes into contact with the ceiling plate 5, dust adheres to the surface of the ceiling plate 5 and becomes very unsightly. Further, if a large distance is provided between the air outlet 11 and the ceiling plate 5 as a countermeasure against these, the thickness of the decorative panel 24 becomes large and the protruding dimension from the ceiling plate 5 becomes large, so that air conditioning with a feeling of oppression. There was a problem that it became an opportunity.

The present invention has been made in order to solve the various problems described above. The air conditioner can be installed on a module ceiling to improve the appearance and improve the installation workability. The first purpose is to obtain a ceiling-embedded air conditioner.

Further, when the air conditioner is configured in a horizontally long shape, the ceiling-embedded air conditioner can be installed even when the size of the space in the ceiling is small, and when the drain pump is replaced due to a failure. In addition, it is not necessary to remove other parts and the replacement work is easy, and the drainage pipe for drainage can be adjusted in various directions. ， The purpose of the present invention is to provide a ceiling-embedded air conditioner of this type, which is provided with a thin decorative panel without touching the decorative panel.

[0019]

Therefore, according to the present invention, in this type of ceiling-embedded air conditioner, 1) frames having an inverted T-shaped cross section are arranged in parallel in a predetermined module, and the inverted T In a ceiling structure in which a ceiling material is laid between frames of a V-shaped cross section, an air conditioner having a suction port and a blowout port on the lower surface is arranged between the pair of adjacent frames, and the air conditioner is provided on the outer periphery of the air conditioner main body. By covering the edge of the decorative panel of the air conditioner and placing the outer peripheral portion of the main body between the frames, the air conditioner main body is configured to be installed. 2) Also, between the air conditioner main bodies A drain tank for collecting the drain water received in the provided drain pan is connected to the drain pan in the central portion of the suction air passage in the main body to form an overhang, and is located at the deepest part of the drain pan. On the drain tank 3) Furthermore, in a decorative panel located on the lower surface of the main body of the air conditioner and having the inlet and the outlet, the outlet is provided on the opposite side of the inlet. Together with this, by arranging below the suction port installation surface,
It is intended to achieve the above object.

[0020]

In the ceiling-embedded air conditioner having the above-described structure according to the present invention, the workability of installation is improved by the item 1) and the appearance and appearance after installation is improved, and by the item 2), the ceiling ceiling is installed. Even if it is not possible to secure a sufficient space for the corner area, it is possible to install, and furthermore, according to the above item 3), it is possible to prevent the ceiling board from being contaminated due to the wind.
It is possible to improve the appearance without pressure.

[0021]

【Example】

Example 1. Hereinafter, the present invention will be described based on a plurality of embodiments. 1 and 2 are a perspective view showing an installation dimension of the air conditioner of the first embodiment and a side sectional view of the air conditioner. 1 and FIG. 2, FIG.
The same or corresponding components as those in FIGS. 3 to 20 are represented by the same reference numerals, and the duplicated description of each is omitted (the same applies to each of the following embodiments). In FIGS. 1 and 2, reference numeral 26 denotes a frame having an inverted T-shaped cross section, which is arranged in parallel on the ceiling surface at a pitch of 330 mm, for example. The ceiling plate 5 is laid on the frame 26 without any gap. Reference numeral 27 is a wire for supporting the frame 26 on the ceiling slab 3, and adjusts the number of wires so that the weight of the frame 26 can be safely carried. The housing 2 of the air conditioner is dimensioned to fit between the pair of frames 26, and the decorative panel 2
The edge of the decorative panel 24 is covered with a flange 29 which is housed in the housing 2 and formed by the housing 2.

In the installation of the ceiling-embedded air conditioner of the present embodiment configured as described above, it is sufficient to place the main body of the air conditioner directly on the frame 26 having an inverted T-shaped cross section. Not only is it simple, but the makeup panel 24
Since the interior of the housing 2 of the air conditioner main body is not subjected to the load of the air conditioner 1 on the decorative panel 24, there is no deformation. Further, by having the decorative panel 24 inside the main body, the ceiling panel 5 is removed from the decorative panel 5. 24 does not project and does not give a feeling of pressure.

Example 2. Next, a second embodiment of the present invention will be described with reference to FIGS. 3 is a side sectional view of the air conditioner, FIG. 4 is a plan sectional view of FIG. 3, and FIG. 5 is a sectional view taken along line ZZ of FIG.

A drain pump 19 is arranged in the center of the air conditioner, and a drain tank 10 formed in a drain pan 15 is arranged on the lower surface of the drain pump 19. A surface of the drain tank 18 that is inclined lower than the left and right of the air conditioner body toward the drain tank 18 is formed, and has a V-shaped inclined surface in the center of the drain tank 18.

According to the ceiling-embedded air conditioner of this embodiment constructed as described above, the drain pump 19 and the drain tank 18 are arranged at the center of the main body so that the drain can be drained. It is possible to configure the height dimension A (see FIG. 5) generated on the surface to be 1/2 as compared with the arrangement position of the drain pump 19 of each conventional example.

Example 3. Next, regarding the third embodiment, FIG.
4 and FIG. The drain pump 19 is arranged in the suction air passage inside the air conditioner body, and the drain pan 15 forms a T-shape projecting the drain tank 18 into the suction air passage.
As shown in FIG. 3, the drain pump 19 can be replaced by rotating the suction port 10 as shown in B and opening it to remove it by inserting a hand between the blowers 8.

Example 4. Next, a fourth embodiment of the present invention will be described with reference to FIG. 6 showing a perspective view of the air conditioner of FIGS. 3 to 5 of the second and third embodiments. Drain pump 1
9 and the drain outlet 20 are arranged at the center of the side surface of the housing 2 in the longitudinal direction of the air conditioner main body, and the drain pipe 28 has a drain pipe 28, 28a in each direction depending on the drain direction.
And 28b, it is bent into an L shape near the connection with the drain outlet 20. This enables drainage in a predetermined direction.

Example 5. Hereinafter, a fifth embodiment of the present invention will be described with reference to FIGS. FIG. 7 is a perspective view of a decorative panel of this embodiment, FIG. 8 is a side sectional view of an air conditioner,
FIG. 9 is an enlarged side sectional view of a decorative panel outlet portion. Two
Is a casing that forms the outer shell of the air conditioner, and has a blower 8 inside.
The heat exchanger 9 is installed downstream of the heat exchanger 9 and the drain pan 15 is installed on the lower surface thereof. On the bottom of this air conditioner body,
A decorative panel 24 covering a hole for installing and installing the air conditioner main body, which is opened in the ceiling surface 5, is arranged.

The decorative panel 24 has a suction port 10 for passing indoor air to the main body of the air conditioner, and the suction port 10.
Is located on the opposite side of the suction port 10 and is located below the surface on which the suction port 10 is installed, and has an outlet 11 for discharging the conditioned air into the room. The level difference between the flat portion on which the suction port 10 is installed and the position of the air outlet 11 is formed by a gentle curve.

The outlet 11 is provided with a wind vane 30 for changing the wind direction of the blown air 25. This wind direction vane 30 is located in a state where the air outlet 11 is opened only when the air is running and allows the air to flow, but is formed so that the air outlet 11 is closed and the surface of the decorative panel 24 is flush with the air when the operation is stopped. The entrained wind 26 that is drawn in by the blow-out air 25 discharged into the room from the blow-out port 11 has a fear of contacting the ceiling plate 5 and adhering dust or the like because the blow-out port 11 projects downward. Absent.

Example 6. Next, as a sixth embodiment,
Another embodiment in which the respective Embodiments 2 and 3 are integrated will be described.

3 to 5 of the second and third embodiments.
In the above, the motor 7 is arranged in the central portion of the housing 2, and the blowers 8 are provided at both ends of the motor 7. As the flow of air, the air sucked from the suction port 10 is rotated by the blower 8 to cause a heat exchanger. In this embodiment, the motor 7 is pushed into the housing 9 and blown out into the room from the outlet 11. However, in this embodiment, the motor 7 is connected to the housing 2 as shown in FIGS.
The blower 8 of the line flow fan, which is disposed on the side surface of the heat exchanger 9, is disposed downstream of the heat exchanger 9. Even with such a component structure, the same effects as those of the second and third embodiments can be obtained.

Example 7. Further, as a seventh embodiment, another embodiment of the fifth embodiment will be described. In the fifth embodiment (FIGS. 7 to 9), the air outlet 11 of the decorative panel 24 has a gentle curved surface on the decorative panel surface, but this embodiment corresponds to FIG. Figure 1
As shown in FIG. 2, although there is a step difference between the flat portion on which the suction port 10 is installed and the position of the air outlet 11 similar to the above, even if the surface of the blown wind side decorative panel 24 is formed at a right angle, it is the same as that of the fifth embodiment. Has the same effect.

[0034]

As described above, according to the present invention, the following effects are obtained; that is, the ceiling-embedded air conditioner according to claim 1 has a decorative panel having a suction port and an air outlet. By storing in the housing of the main body of the air conditioner, the installation is completed not only by mounting on a pair of frames of the module ceiling composed of a plurality of frames, but the installation is improved. There is no protrusion of the decorative panel from the frame, and the appearance can be greatly improved.

In the ceiling-embedded air conditioner according to a second aspect of the present invention, the drain pump is arranged in the central portion in the longitudinal direction of the air conditioner main body, and the drain tank of the drain pan is also arranged in the central portion. A V-shape is formed so that the drain pan inclination for improving drainage of the drain is lowered toward the center of the air conditioner body. As a result, the height dimension produced by the inclined surface of the drain pan is reduced to 1/2 of that of the conventional one, so that the height dimension of the air conditioner main body is also reduced, which is effective when the space above the ceiling cannot be secured. Further, the effect becomes greater as the air conditioner body extends in the longitudinal direction.

Further, in the decorative panel for a ceiling-embedded air conditioner according to a third aspect of the present invention, the position of the outlet is provided below the surface on which the inlet is installed so that the ceiling plate and the outlet are separated from each other. Since the entrained wind generated by the blow-out air does not come into contact with the ceiling surface, only the outlet portion is projected downward without contaminating the ceiling surface and without increasing the thickness of the entire decorative panel. It is possible to improve the appearance with excellent interior quality without giving a feeling.

[Brief description of drawings]

FIG. 1 is a perspective view illustrating an installation method according to a first embodiment.

FIG. 2 is a side sectional view of the air conditioner of the first embodiment.

FIG. 3 is a side sectional view of the second embodiment.

FIG. 4 is a plan sectional view of FIG.

5 is a sectional view taken along line ZZ of FIG.

FIG. 6 is a perspective view of the air conditioner in FIGS.

FIG. 7 is a perspective view of a decorative panel of Example 5.

FIG. 8 is a side sectional view of the air conditioner of the fifth embodiment.

FIG. 9 is an enlarged side cross-sectional view of a decorative panel outlet part of the fifth embodiment.

FIG. 10 is a view corresponding to FIG. 3 of the sixth embodiment.

FIG. 11 is a diagram corresponding to FIG. 4 of the sixth embodiment.

FIG. 12 is a view corresponding to FIG. 8 of the seventh embodiment.

FIG. 13 is a schematic perspective view of a mounting structure of an example of a conventional air conditioner.

FIG. 14 is a cross-sectional view of the air conditioner shown in FIG.

FIG. 15 is a vertical cross-sectional view of the air conditioner in FIG.

16 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 17 is a schematic perspective view of an example of another conventional air conditioner.

FIG. 18 is a vertical cross-sectional view of the air conditioner of FIG. 17.

FIG. 19 is a side view of a decorative panel of still another example of a conventional air conditioner.

20 is an enlarged vertical cross-sectional view of the air outlet portion of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air conditioner 2 Housing 5 Ceiling board 10 Suction port 11 Outlet port 15 Drain pan 18 Drain tank 19 Drain pump 20 Drain outlet 24 Decorative panel 26 Frame

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Katsura Izaki Katsura Izaki, 3-18-1, Oga, Shizuoka-shi, Shizuoka Mitsubishi Electric Engineering Co., Ltd. Nagoya Office Shizuoka Branch (72) Inventor Kazuhide Yunai Shizuoka Shizuoka 183-1 Oga, Shiga, Mitsubishi Electric Engineering Co., Ltd. Nagoya Office, Shizuoka Branch (72) Inventor, Kato Okazaki, 3-18-1, Oga, Shizuoka City, Shizuoka Mitsubishi Electric Engineering Co., Ltd. Nagoya Office, Shizuoka Branch (72) Inventor Hideyuki Ogata 3-18-1, Oga, Shizuoka City, Shizuoka Prefecture Mitsubishi Electric Engineering Co., Ltd. Nagoya Office Shizuoka Branch Office

Claims (3)

[Claims] 1. A ceiling structure in which frames having an inverted T-shaped cross section are arranged in parallel in a predetermined module, and a ceiling material is laid between the frames having the inverted T-shaped cross section, and a lower surface is provided between the pair of adjacent frames. By disposing an air conditioner having an inlet and an outlet, covering the edge of the decorative panel of this air conditioner with the outer periphery of the air conditioner main body, by placing the outer peripheral part of the main body between the frames, A ceiling-embedded air conditioner configured to install the air conditioner body. 2. A drain tank for collecting drain water received in a drain pan provided between the air conditioner main bodies is formed so as to be connected to the drain pan at the central portion of the suction air passage inside the main body. At the same time, a drain pump is disposed on the drain tank located at the deepest part of the drain pan, and the ceiling embedded air conditioner according to claim 1. 3. A decorative panel located on the lower surface of the main body of the air conditioner and having the inlet and the outlet, wherein the outlet is disposed on the opposite side of the inlet and below the surface on which the inlet is installed. The ceiling-embedded air conditioner according to claim 1, wherein the air conditioner is embedded in the ceiling.