JPH10300184A - Ceiling embedded air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable to thermally insulate a filter attaching hole, an outer circumference part and blasting paths from others by composing a filter frame with a thermally insulated filter frame main body formed with a filter attaching hole at the central part of it and blasting paths around it, and an inner metal wall joined with the inside of the filter attaching hole. SOLUTION: A filter frame 2 for attaching an air filter unit is arranged between a box shape air conditioner main body embedded into a ceiling and a ceiling panel attached facing the inside of a room at the lower surface part of the air conditioner main body. The filter frame 2 made of thermally insulated material comprises the filter frame main body 20 having a filter attaching hole at the central part of it and formed with blasting paths 28 around it, and a metal inner wall 22 formed by joining it on the inner side of the filter attaching hole of the frame main body 20. Thermally insulated sealing material 40 preventing air leakage is stuck on the outer circumference and around the opening part of the blasting paths 28 on the upper surface of the frame main body 20 of the filter frame 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a filter frame for mounting a dust collection filter unit in a ceiling-mounted air conditioner.

[0002]

2. Description of the Related Art FIGS. 6 and 7 show a general configuration of a ceiling-mounted air conditioner to which the present invention is applied.
In FIG. 6, an air conditioner embedded in a ceiling includes an air conditioner body 1 embedded in a ceiling C, and a ceiling panel 3 mounted facing the room corresponding to the lower surface of the apparatus body 1.
And The device main body 1 has a housing 5 with an open bottom surface, and a centrifugal blower 6 is provided in the center of the housing 5. In the housing 5, the heat exchanger 7
Are provided around the blower 6.

The air conditioner is provided with a drain plate 8 for receiving the lower surface of the heat exchanger 7. The drain plate 8 forms a suction port 10 in the center of the lower surface of the apparatus main body 1, and the suction port 10
Is formed around the periphery of the air outlet. Further, the inside of the apparatus main body 1 is provided with a heat exchanger 7 and a drain plate 8, a side corresponding to the suction port 10 (a space on the upstream side of the heat exchanger 7), and
The side corresponding to the outlet 12 (space downstream of the heat exchanger 7)
It is divided into and.

The ceiling panel 3 has suction ports 3 corresponding to the suction port 10 and the air outlet 12 of the apparatus main body 1, respectively.
0 and an outlet 32. An air filter unit F1 for collecting dust is attached to the suction port 30 of the ceiling panel 3.

Here, as shown in FIG. 7, when it is desired to use a thicker air filter unit F2 having a high dust collecting effect instead of the air filter unit (standard equipment) F1, the apparatus body 1 and the ceiling are required. It is necessary to interpose a filter frame 2 ′ with the panel 3. The filter frame 2 ′ has a filter mounting port 27 corresponding to each of the suction ports 10 and 30 of the apparatus main body 1 and the ceiling panel 3, and a blowout port corresponding to each of the air outlets 12 and 32 of the apparatus main body 1 and the ceiling panel 3. And a passage 28.

[0006]

However, in the conventional ceiling-mounted type air conditioner, since the outer frame of the filter frame 2 'and the outlet passage 28 are formed by metal plates, many metal plate parts are required. Is required.

Further, in the filter frame 2 ', the filter mounting port 28 through which the suction air passes, the blowout passage 28 through which the conditioned air passes, and the outer peripheral portion facing the ceiling c are exposed to air of different temperatures. Also, it is necessary to attach a heat insulating material to each part of the front and back of the metal plate. For this reason, the structure of the filter frame 2 'is complicated and the number of parts increases.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to provide an in-ceiling type air conditioner capable of simplifying the structure of a filter frame and reducing the number of parts. I do.

[0009]

The first means has a substantially box-like shape with an open lower surface, and has a suction port provided at the center of the lower surface, and an air outlet provided around the suction port. An air-conditioning apparatus main body having a ceiling panel installed on an indoor ceiling portion corresponding to a lower surface portion of the apparatus main body, and having a suction port and an air outlet corresponding to a suction port and an air outlet of the apparatus main body, respectively. A filter mounting port interposed between the ceiling panel and the apparatus main body and corresponding to each of the suction ports of the apparatus main body and the ceiling panel, and corresponding to each of the air outlets of the apparatus main body and the ceiling panel, respectively. And a filter frame having a blow-out passage that forms the filter frame, wherein the filter frame forms the filter mounting opening at a central portion, forms the blow-out passage around the filter mounting opening, and includes a heat-insulating material. A filter frame body formed, characterized in that it is composed of a metal plate of the inner wall for securing the coupled form on the inside of the filter attachment port air filter unit of the filter frame body.

According to the first means, the filter frame is
A filter mounting body is formed in the center, a blow-out passage is formed around the filter mounting body, and a filter frame main body made of a heat insulating material, and an inner wall made of a metal plate joined and formed inside the filter mounting opening of the filter frame main body. With this configuration, the filter mounting body, the outer peripheral portion, and the blowout passage of the filter frame can be insulated from each other by the filter frame main body, and the strength of the filter mounting port can be maintained by the inner wall made of a metal plate.

A second means is the first means, wherein the filter frame is provided on the inner wall made of a metal plate with temporary hooking means for temporarily hooking the filter frame to the apparatus body. Is what it is.

According to the second means, in the first means, by temporarily hooking the filter frame to the apparatus main body by the temporary hooking means, the work of installing the air conditioner can be facilitated.

A third means is the first means, wherein the filter frame is formed by joining an outer wall made of a metal plate to an outer peripheral portion of the filter frame main body made of a heat-insulating material. A fixing means for fixing the filter frame to the apparatus main body is provided.

According to the third means, in the first means, the filter frame can be fixed to the apparatus main body independently of the ceiling panel by the filter frame fixing means. The strength required for the ceiling panel can be reduced as compared with the configuration in which the fixing depends on the fixing of the ceiling panel to the apparatus main body.

According to a fourth aspect of the present invention, in any one of the first to third aspects, the filter frame is formed by laminating a flat heat insulating material on the filter frame main body made of a heat insulating material. It is.

According to the fourth means, in any one of the first to third means, the manufacture of the filter frame is easier than in the case where the filter frame body is formed of a plurality of heat insulating parts. , Manufacturing cost and mold cost can be reduced.

A fifth means is that in any one of the first to third means, the filter frame is made of a heat insulating material, wherein the filter frame main body is a flat heat insulating material forming the blowing passage; The heat insulating material for air sealing is formed by laminating a flat heat-insulating air seal material. It has been formed.

According to the fifth means, in any one of the first to third means, the manufacture of the filter frame is easier than in the case where the filter frame body is formed of a plurality of heat insulating parts. In addition, the manufacturing cost and the mold cost can be reduced, and the number of parts and the assembly process can be reduced as compared with a case where an air seal material is separately attached on the completed filter frame.

According to a sixth aspect, in the fourth or fifth aspect, in the filter frame, the flat heat insulating material forming the filter frame main body is made of a foamed synthetic resin.

According to the sixth means, in the fourth or fifth means, the filter frame is made of a material having a relatively low rigidity such as a fibrous material. Since the strength of the main body can be improved, the amount of the metal plate used can be reduced while maintaining the strength of the filter frame. As a result, the manufacturing cost and weight of the filter frame can be reduced.

[0021]

Next, an embodiment of the present invention will be described with reference to the drawings. FIGS. 1 to 4 are views showing an embodiment of a ceiling-mounted air conditioner according to the present invention. In the embodiment of the present invention shown in FIGS. 1 to 4, the same components as those of the general ceiling-mounted air conditioner shown in FIG. 7 are denoted by the same reference numerals, and FIG. Will be explained.

[First Embodiment] First, a first embodiment of the present invention will be described with reference to FIGS. 1, 2 and 7. FIG.
In FIG. 7, the ceiling-mounted air conditioner has a substantially box-like shape, and has an air conditioner body 1 embedded in the ceiling C, and a ceiling panel facing the interior of the room corresponding to the lower surface of the device body 1. 3 is provided. In this air conditioner, a filter frame 2 for mounting an air filter unit F2 for dust collection is interposed between the device main body 1 and the ceiling panel 3.

The apparatus main body 1 has a housing 5 having an open bottom surface, and a centrifugal blower 6 is provided in the center of the housing 5. A heat exchanger 7 is provided around the blower 6 in the housing 5. Further, the air conditioner is provided with a drain plate 8 that receives the lower surface of the heat exchanger 7.

The drain plate 8 forms a suction port 10 in the center of the lower surface of the apparatus main body 1, and
An outlet 12 is formed around the inlet 10.
The inside of the apparatus main body 1 includes a heat exchanger 7 and a drain plate 8.
Thereby, it is divided into a side corresponding to the suction port 10 (a space on the upstream side of the heat exchanger 7) and a side corresponding to the outlet 12 (a space on the downstream side of the heat exchanger 7). The ceiling panel 3 has an inlet 30 and an outlet 32 respectively corresponding to the inlet 10 and the outlet 12 of the apparatus main body 1.

The filter frame 2 includes a filter mounting port 27 corresponding to each of the suction ports 10 and 30 of the apparatus main body 1 and the ceiling panel 3, and a filter main body 1 and the ceiling panel 3 respectively.
Outlet passages 28 corresponding to the respective outlets 12 and 32 of the
And

Next, referring to FIG. 1 and FIG.
Will be described in detail. As shown in FIGS. 1 and 2,
The filter frame 2 has the filter mounting port 27 (see FIG. 7) formed at the center, the blowout passage 28 formed around the filter mounting port 27, and a filter frame body 20 made of a heat insulating material.
And an inner wall 22 made of a metal plate and formed inside the filter mounting opening 27 of the filter frame body 20. That is, the air filter unit F2 (see FIG. 7) is fixed to the metal plate inner wall 22 of the filter frame 2.

Here, the inner wall 22 of the filter frame 2 is attached to the ceiling panel 3 side in advance (see FIGS. 1A and 2). The filter frame 2 is formed on the ceiling panel 3 by fitting the filter frame body 20 around the inner wall 22. In addition, at the upper end of the inner wall 22 of the filter frame 2,
A pair of temporary hooks (temporary hooking means) 24 for temporarily hooking the filter frame 2 (and the ceiling panel 3) to the filter frame 2 are provided.

The filter frame main body 20 can be integrally formed by, for example, pressing a laminate of flat heat insulating materials. In this case, from the viewpoint of improving the strength of the filter frame main body 20 and reducing the amount of metal plate used for the inner wall 22 while maintaining the strength of the filter frame 2, glass wool or the like is used as a heat insulating material of the filter frame main body 20. It is preferable to use a foamed synthetic resin (for example, foamed polystyrene) having higher rigidity than the above fibrous material or the like.

Further, on the upper surface of the filter frame main body 20 which is in contact with the lower surface of the apparatus main body 1 (see FIG. 7), a heat insulating air sealing material for preventing air leakage is provided around its outer periphery and around the opening of the blowout passage 28. 40 is pasted. Here, the filter frame main body 20 includes a flat heat-insulating material that previously forms the blowing passage 28 and a flat heat-insulating air seal material 40.
Can be integrally formed by pressing and the like. As shown in FIG. 2, a similar air seal member 42 is also attached to the upper surface of the ceiling panel 3 so as to correspond to the outer peripheral portion of the filter frame main body 20 and the periphery of the opening of the outlet passage 28.

Here, the installation operation of the ceiling-mounted air conditioner of the present embodiment will be described. First, the device body 1
Is hung above the ceiling c by hanging bolts (not shown) (see FIG. 7). Next, the filter frame main body 20 is fitted around the inner wall 22 attached to the ceiling panel 3 (see FIGS. 1 and 2). Then, the filter frame 2 and the ceiling panel 3 are temporarily hooked to the apparatus main body 1 by the temporary hook 24. Next, the ceiling panel 3 is fixed to the apparatus main body 1 by tightening a plurality of stepped bolts 50 (see FIG. 3) penetrating the filter frame 2.

At this time, the sealing material 42 attached to the ceiling panel 3 is compressed to seal the space between the ceiling panel 3 and the filter frame 2 and the sealing material 40 on the filter frame body 20 is compressed. As a result, the space between the filter frame 2 and the lower surface of the apparatus main body 1 is sealed, and air leakage from each part is prevented.

Next, the operation and effect of this embodiment having the above-described configuration will be described. According to the present embodiment, the filter frame 2 includes a filter frame main body 20 formed of a heat insulating material and having a filter mounting opening 27 formed in the center and a blow-out passage 28 formed therearound.
And the inner wall 22 made of a metal plate joined to the inside of the filter mounting opening 27 of the filter frame main body 20.
Accordingly, the filter mounting port 27, the outer peripheral portion, and the blowing passage 28 of the filter frame 2 can be insulated from each other, and the strength of the filter mounting port 27 can be maintained by the inner wall 22 made of a metal plate. Therefore, the number of parts of the metal plate can be significantly reduced as compared with the related art, and it is not necessary to separately attach a heat insulating material to various places.

[Second Embodiment] Next, a second embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 3 to 5, the present embodiment uses a filter frame 2A in place of the filter frame 2 of the first embodiment, and other configurations are shown in FIGS. Is the same as the first embodiment shown in FIG.

As shown in FIGS. 3 to 5, in the filter frame 2A of the present embodiment, a metal plate formed with a filter mounting opening 27 (see FIG. 7) in advance on the inner peripheral portion of the filter frame main body 20. The inner wall 23 is formed by joining. Further, an outer wall 25 made of a metal plate separated from the inner wall 23 is formed on the outer peripheral portion of the filter frame main body 20. That is,
The filter frame 2A is formed such that a filter frame main body 20 made of a heat insulating material is sandwiched between an inner wall 23 and an outer wall 25 made of a metal plate.

As shown in FIGS. 3 and 4, a plurality of fixing members (fixing means) 26 for fixing the filter frame 2A to the apparatus main body 1 are provided on the upper edge of the outer wall 25. . The other configuration of the filter frame 2A is shown in FIG.
This is the same as the filter frame 2 of the first embodiment shown in FIG.

Here, with reference to FIG. 3, an installation operation of the ceiling-mounted air conditioner of the present embodiment will be described. First, as in the case of the first embodiment, the apparatus body 1 is
It is hung above the ceiling c by hanging bolts (not shown). Next, the filter frame 2A is fixed to the apparatus main body 1 by the fixing bracket 26 (FIG. 3A). At this time, the sealing material 40 on the filter frame main body 20 (see FIG. 4)
Is compressed, and the space between the filter frame 2A and the lower surface of the apparatus main body 1 is sealed.

Next, a plurality of stepped bolt bolts 50 passing through the bolt holes 29 of the filter frame 2 are screwed into the screw holes 15 of the apparatus main body 1, and the ceiling panel 3 is tightened by these bolts 50. It is fixed to the apparatus body 1.
At this time, the sealing material 42 attached to the ceiling panel 3
(See FIG. 4) is compressed, and the space between the ceiling panel 3 and the filter frame 2 is sealed.

Next, the operation of the present embodiment having the above configuration will be described. According to the present embodiment, the filter frame 2A has a filter mounting port 27 formed at the center portion, a blowout passage 28 formed around the filter mounting port 27, and a filter frame main body 20 made of a heat insulating material. The filter frame main body is composed of an inner wall 23 made of a metal plate connected to the inside of the opening 27 and an outer wall 25 made of a metal plate connected to the outer peripheral portion of the filter frame main body 20 and formed separately from the inner wall 23. 20, the filter mounting port 27, the outer peripheral portion, and the outlet passage 28 of the filter frame 2 can be insulated from each other, and the inner wall 23 and the outer wall 25 made of metal plate can maintain the strength of the entire filter frame 2A. Therefore, the number of parts of the metal plate can be significantly reduced as compared with the related art, and there is no need to separately attach a heat insulating material to various places. Therefore, the structure of the filter frame can be simplified, and the number of parts can be significantly reduced.

Further, the filter frame 2A can be fixed to the apparatus main body 1 independently of the ceiling panel 3 independently of the ceiling panel 3 by the fixing means 26 of the filter frame 2A, and the sealing material 40 can be compressed between the two. The fixing of the filter frame 2 and the compression of the sealing material 40 are performed on the ceiling panel 3 with respect to the apparatus main body 1.
The strength required for the ceiling panel 3 can be reduced as compared with the one relying on the fixing of the ceiling panel 3 (the first embodiment).

[0040]

According to the present invention, the filter frame has a filter mounting opening formed in the center and a blow-out passage formed around the filter mounting opening, and a filter frame main body made of a heat insulating material, and the filter mounting of the filter frame main body. Since the filter frame is composed of a metal plate inner wall formed inside the mouth, the filter mounting body, the outer peripheral portion, and the blowing passage of the filter frame can be insulated from each other by the filter frame main body. Thereby, the strength of the filter mounting port can be maintained.
Therefore, the number of parts of the metal plate can be significantly reduced, and it is not necessary to separately attach a heat insulating material to various places, so that the structure of the filter frame can be simplified and the number of parts can be significantly reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a ceiling-embedded air conditioner according to the present invention, wherein FIG. 1 (a) is a view showing attachment of a filter frame main body to a ceiling panel, and FIG. The figure which shows the state in which the filter frame main body was attached to the ceiling panel.

FIG. 2 is a longitudinal sectional view of a main part of a filter frame and a ceiling panel of the ceiling embedded type air conditioner shown in FIG.

FIGS. 3A and 3B are perspective views showing a second embodiment of the ceiling-embedded air conditioner according to the present invention, wherein FIG. 3A is a view showing attachment of a filter frame to the apparatus main body, and FIG. The figure which shows the attachment of a ceiling panel to an apparatus main body.

FIG. 4 is a longitudinal sectional view of a main part of a filter frame and a ceiling panel of the ceiling embedded type air conditioner shown in FIG. 3;

FIG. 5 is a perspective view of a filter frame of the embedded ceiling air conditioner shown in FIG. 3;

FIG. 6 is a longitudinal sectional view showing a general configuration of an embedded ceiling air conditioner to which the present invention is applied.

FIG. 7 is a longitudinal sectional view showing a state in which a filter frame is incorporated in the ceiling-mounted type air conditioner similar to that shown in FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air-conditioning apparatus main body 2, 2 ', 2A filter frame 3 Ceiling panel 5 Equipment main body 6 Blower 7 Heat exchanger 8 Drain plate 10 Suction port of apparatus main body 12 Air outlet of apparatus main body 20 Filter frame main bodies 22, 23 Inner wall of filter frame 24 Temporary hook (temporary hooking means) 25 Outer wall of filter frame 26 Fixing bracket (fixing means) 27 Filter mounting port 28 Filter frame outlet passage 30 Ceiling panel inlet port 32 Ceiling panel outlet port 40, 42 Air seal material F1, F2 Air filter unit

Claims (6)

[Claims] 1. An air conditioner body having a substantially box-like shape with an open lower surface, and having a suction port provided at the center of the lower surface and an air outlet provided around the suction port. A ceiling panel installed on the indoor ceiling portion corresponding to the lower surface of the main body, and having a suction port and an air outlet corresponding to the suction port and the air outlet of the apparatus main body, respectively, A filter frame that is interposed therebetween and has a filter mounting port corresponding to each of the suction ports of the device main body and the ceiling panel, and a blowout passage corresponding to each of the blowout ports of the device main body and the ceiling panel, respectively. In the ceiling-embedded air conditioner provided, the filter frame is formed of a heat insulating material while forming the filter mounting port in the center and forming the blowout passage around the filter mounting port. Filter frame main body of the filter attachment port ceiling type air conditioning apparatus characterized in that it is composed of a metal plate of the inner wall for securing the air filter unit coupled formed on the inside of the. 2. The filter frame according to claim 1, wherein a temporary hooking means for temporarily hooking the filter frame to the apparatus body is provided on the inner wall made of a metal plate. Ceiling embedded air conditioner. 3. The filter frame has an outer wall made of a metal plate joined to an outer peripheral portion of the filter frame main body made of a heat insulating material, and the filter frame is formed on the outer wall with respect to the apparatus main body. The ceiling-embedded air conditioner according to claim 1, further comprising fixing means for fixing. 4. The filter frame according to claim 1, wherein the filter frame main body made of a heat insulating material is formed by laminating flat heat insulating materials. The ceiling-mounted air conditioner as described in the above. 5. The filter frame, wherein the filter frame main body made of a heat insulating material is formed by laminating a flat heat insulating material forming the blowing passage and a flat heat insulating air sealing material. The heat insulating material for an air seal is formed so as to correspond to an outer peripheral portion of an upper surface of the filter frame main body which is in contact with a lower surface portion of the device main body and a periphery of an opening of the blowing passage. Ceiling embedded air conditioner. 6. The air-conditioning apparatus according to claim 4, wherein said flat frame-shaped heat insulating material forming said filter frame main body is made of a foamed synthetic resin.