JP2800768B2 - Ceiling-mounted air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-ceiling type air conditioner installed on the back side of a ceiling.

[0002]

2. Description of the Related Art In a ceiling-mounted type air conditioner as described above, a fire box is first installed and the inside of the fire box is installed so that it can be installed on the back side of the ceiling without damaging the fireproof structure of the house. It has been conventionally considered to attach an air conditioner main body to a vehicle. As a conventional example having such a structure, the one described in JP-A-7-91735 can be cited, and FIG. 4 is a transparent side view thereof. In the figure, reference numeral 31 denotes a metal fire protection box, which has a box shape with an open lower surface, and a suspension bolt 32 and a nut 33.
Thus, it is suspended and fixed to the ceiling beam 26. In the same figure, reference numerals 28 and 30 denote ceiling materials each made of a gypsum board, which are laid so as to be in close contact with the outer surface of the fire box 31 as a reference. Then, the air conditioner main body 27 is housed through the lower surface opening of the fire protection box 31, and is attached to the inside of the fire protection box 31 by the suspension bolts 34 and the mounting brackets 35. Thereafter, the decorative panel 25 is mounted from the indoor side, and the opening of the ceiling is closed.

In the conventional ceiling-mounted type air conditioner configured as described above, the fire box 3 is provided outside the air conditioner body 27.
1 to provide a partition between the first floor and the second floor, whereby the air conditioner can be installed on the back side of the ceiling without damaging the fireproof structure of the house.

[0004]

The air conditioner body 27 has a drain pipe and a refrigerant pipe (both not shown).
It is necessary to connect these to a communication pipe or a drain pipe and extend them outside the room. However, in the above-mentioned conventional ceiling-mounted type air conditioner, since the fireproof structure of the house can be maintained by providing the fireproof box 31 outside the air conditioner main body 27, the periphery of the air conditioner main body 27 can be maintained. The inside and the outside are separated by the fire protection box 31, and the connection port of the external communication pipe is disposed inside the inside. Therefore, the connection work of the external communication pipe must be performed in a limited space inside the fire protection box 31, and it is difficult to connect the pipe easily, and there is a problem that the installation workability is reduced. .

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks, and an object of the present invention is to provide a ceiling-mounted type capable of improving installation workability while maintaining a fireproof structure of a house. An object of the present invention is to provide an air conditioner.

[0006]

In order to solve the above problem, the ceiling-mounted air conditioner according to the first aspect of the present invention has a fire box 1 having an open bottom surface disposed on the back side of the ceiling, and an air conditioner body 2 mounted inside the fire box. In the built-in ceiling type air conditioner, the fire box 1 is attached to and detached from the fire box body 8 around the connection ports 5a and 6c of the external communication pipes 5 and 6 of the attached air conditioner body 2. It is characterized in that it is constituted as a possible divided part 3, the divided part 3 is removed and the inside of the fire protection box 1 communicates with the outside, and the periphery of the communicating part is used as a space for the pipe connection work of the external communication pipes 5 and 6. And

[0007] Here, the external communication pipe comprises a refrigerant pipe 6 and a drain pipe 5.

In the ceiling-embedded air conditioner of the first aspect, the fireproof box 1 is provided with a detachable division 3 which is detached and connected to the external connection pipes 5 and 6 around the connection ports 5a and 6c. A working space can be formed.
Therefore, it is possible to improve the installation workability while maintaining the fireproof structure of the house.

The ceiling-mounted air conditioner of claim 2 is
Hanging bracket 7 protruding downward from the top plate 1a of the fire protection box 1
The air conditioner body 2 is configured so that the mounting bracket 2a is engaged with the hanging bracket 7 to be mounted in the fire protection box 1. The one arranged on the divided side is characterized in that its lower end side is rotatable outward.

In the ceiling-mounted type air conditioner according to the second aspect, the lower end side of the hanging metal fitting 7 can be turned outwardly by utilizing the space for pipe connection work. Therefore, the work of storing the air conditioner body 2 in the fire box 1 can be facilitated without increasing the volume of the fire box 1.

According to a third aspect of the present invention, there is provided a ceiling embedded type air conditioner, wherein the fire protection box 1 comprises a gypsum board 1a-1e constituting a wall surface of a box body and a wooden supporting material for supporting the gypsum board 1a-1e. 1f.

In the ceiling-mounted type air conditioner according to the third aspect, it is possible to easily implement the air conditioner, and furthermore, it is possible to further reduce the weight of the fire prevention box 1 and further improve the installation workability.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a specific embodiment of a ceiling-mounted air conditioner according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of the ceiling-mounted air conditioner, showing a state in which an air conditioner main body 2 is mounted in a fire box 1. The fire box 1 has a rectangular parallelepiped shape with an open lower surface, and is formed by stacking two gypsum boards.
a, 1d and side plates (long side plates) 1b, 1
b and a side plate (short side plate) 1c (one short side plate is not shown) extending in the short direction, and a corner formed by the long side plates 1b, 1b and the top plate 1a has a wooden part. Two wooden frames 1f, 1f are extended as support members. In the fire box 1, one short side plate 1c side shown in the figure is configured as a separation portion 3 detachable from the fire box main body 8, and the separation portion 3 is formed by the short side plate 1c and the end of the top plate 1a. And a lid plate 1d which is also a part. 4 ・ ・ 4 shown in the same figure
Is a suspension bolt projecting downward from a ceiling beam (not shown). The suspension bolt is inserted from above into a mounting hole (not shown) formed near each corner of the top plate 1a. A nut (not shown) is fastened from the lower surface side so that the fire box 1 is suspended from the rear side of the ceiling and arranged. The air conditioner main body 2 includes a rectangular parallelepiped casing, and includes a heat exchanger and a blower fan (both not shown) therein. In the main body 2 of the air conditioner, a refrigerant pipe 6 composed of a gas pipe 6a and a liquid pipe 6b connected to the heat exchanger was formed on one end side opposed to the longitudinal direction, and generated in the heat exchanger. A drain pipe 5 for treating drain is provided so as to protrude, and the refrigerant pipe 6 and the drain pipe 5 constitute an external communication pipe. In addition, it is necessary to connect a communication pipe to the refrigerant pipe 6 in order to connect to an outdoor heat exchanger provided in an outdoor unit (not shown). The port (connection port) 6c is used. In addition, since drain water generated in the heat exchanger in the air conditioner body 2 must also be discharged outside the room, it is necessary to connect a drain pipe extending to the outside of the drain pipe 5. Therefore, the drain pipe 5 has a heat insulating coating removed at the end, thereby forming a connection port (connection port) 5a. Further, reference numeral 2a shown in the figure denotes a mounting bracket for the air conditioner main body 2, which is engaged with a suspension bolt (hanging bracket) 7 protruding downward from the top plate 1a of the fire protection box 1 to generate air. The fire box 1 is placed on both sides of the harmonizer main body 2 facing each other in the longitudinal direction.
And is fixed to the ceiling plate 1a. The mounting bracket 2a includes an engaging hole 2b for engaging and attaching the hanging bolt 7, and an insertion passage 2c for inserting the hanging bolt 7 from the outside into the engaging hole 2b. Made up of

Next, the installation of the above ceiling-mounted air conditioner on the back side of the ceiling will be described. In this installation, first, the fire protection box 1 is attached to the back side of the ceiling. At this time, the separating unit 3 is separated in advance, and this is first placed on the back side of the ceiling. And then the firebox body 8
Is inserted from the opening formed in the ceiling to the back side thereof, the suspension bolts 4 are inserted into the mounting holes of the top plate 1a as described above, and the nuts are tightened from below to mount. After arranging the fire box 1 on the back side of the ceiling in this way, the air conditioner main body 2 is then inserted through the lower surface opening of the fire box main body 8,
The air conditioner main body 2 is mounted on the fire protection box main body 8 by engaging the suspension bolt 7 with the mounting bracket 2a. At this time, the side surface on the side where the drain pipe 5 and the refrigerant pipe 6 are provided is located on the side of the separated part 3 removed. When the attachment of the air conditioner body 2 is completed, the pipe connection work is performed next. First, a connection pipe (not shown) that connects to the outdoor unit
Is inserted into the piping hole 3a of the separation unit 3. The gas pipe and the liquid pipe of the connection pipe are connected to the gas pipe 6 of the refrigerant pipe 6, respectively.
a, Connection is made by tightening the flare nut at the connection port 6c with the liquid pipe 6b. Further, a drain pipe (not shown) extending to the back side of the ceiling for drain treatment is connected to the connection port 5a of the drain pipe 5,
The connection part is covered with heat insulation from the surroundings. When the pipe connection operation is completed, the separating section 3 is attached to the fire box main body 8. At this time, the pipe recess 3b formed in the lid plate 1d of the separation section 3 is fitted to the upright portion of the drain pipe 5 protruding above the top plate 1a. An engagement piece 1e protruding toward the separating portion 3 is formed by the lower gypsum board of the two gypsum boards constituting the top plate 1a. On the back side of the lid plate 1d of the portion 3, a recess (not shown) is formed by cutting out the lower gypsum board. Therefore, the engagement piece 1e is inserted into the recess to engage the two, and the fire box main body 8 and the separation portion 3 are partially overlapped and adhere to each other. After the close contact, the piping holes 3a and the like are sealed with putty, and finally, a decorative panel (not shown) is attached from the indoor side, and the installation is completed.

In the ceiling-mounted type air conditioner constructed as described above, the drain pipe 5 and the refrigerant pipe 6 are used as external communication pipes.
The fire protection box 1 on the side where a and 6c are arranged is a separation part 3 that can be detached from the fire protection box main body 8. Therefore, the inside of the fire protection box 1 can be communicated with the outside while the separation part 3 is removed during the piping work. The space around the communicating portion thus formed can be used as a space for connecting the external communication pipes 5 and 6 to the pipes. Therefore, the workability can be remarkably improved as compared with the conventional one in which the work has to be performed inside the fire protection box 1, and thereby the installation workability can be improved. In addition, the fire box 1 is made up of a gypsum board and a wooden supporting member, so that it is lightweight, and can be easily installed on the back side of the ceiling to further improve the installation workability.

FIG. 2 is a side view showing another embodiment of the ceiling-mounted type air conditioner of the present invention, and shows a state in which the separation unit 3 is removed. The configuration of the separation unit 3 in this ceiling-mounted type air conditioner is the same as that described above, and thus the description thereof will be omitted. The ceiling-embedded air conditioner of this embodiment is different from the ceiling-embedded air conditioner of the first embodiment in a first embodiment.
Is that the fire protection box 1 is not installed on the back side of the ceiling by hanging, but is installed by mounting. That is, the ceiling material 11 and the fire protection material 12 each made of a gypsum board are provided with openings for arranging the embedded ceiling air conditioner.
A ceiling edge 13 is extended between the fire protection material 12 and the fire protection material 12 as a reinforcing building material. Therefore, the wooden frame 1f is placed on the ceiling edge 13 and the fire box 1 is installed. Since the wall surface of the fire box 1 is made of gypsum board as described above, it is extremely lightweight, and the wooden frame 1 that functions as a supporting material thereof is provided.
If f is placed on the ceiling margin 13, it can be safely and securely installed on the back side of the ceiling without hanging from the second floor 14 or the like. Therefore, a hanging operation using a hanging bolt, a nut, or the like becomes unnecessary, so that the installation workability can be improved. In addition, the upper floor and the lower floor are partitioned by the fireproof material 12 and the firebox 1, so that the fireproof structure of the house can be reliably maintained.

A second difference of the ceiling-embedded air conditioner of this embodiment from the above is that the suspension bolts 7, 7 on the separation section 3 side can turn the lower end side outward. Is a point. In this ceiling embedded type air conditioner, a cylindrical rod 10 is rotatably provided between both wooden frames 1f, 1f in the fire protection box 1, and the hanging bolts 7, 7 are attached to the rod 10. It is fixed and provided. Therefore, as shown in FIG. 3, when attaching the air conditioner main body 2 to the fire box main body 8, first, the suspension bolts 7, 7 on the fixed side are temporarily fixed to the mounting brackets 2 a, 2 a.
Thereafter, the rotatable movable suspension bolts 7, 7 are rotated as shown in the figure, and the lower end thereof is positioned outward. Then, the whole air conditioner main body 2 is housed in the fire box main body 8 and is placed in a horizontal state, and the movable side suspension bolts 7,
7 is returned to the original position, and is inserted and engaged with the mounting bracket 2a via the insertion passage 2c (see FIG. 1). Therefore, the hanging bolt 7 and the mounting bracket 2a can be engaged with each other one by one.
Human work becomes possible, and the mounting work can be simplified. Further, since the fire box 1 provided with the rotatable hanging bolt 7 can be separated from the fire box body 8 as the separating portion 3, the lower end side of the hanging bolt 7 is short of the fire box 1. It can be moved outward sufficiently without being hindered by the side plate 1c, whereby the mounting operation can be surely facilitated. In addition, since it is not necessary to secure a space for rotating the suspension bolts 7 in the fire protection box 1, the volume of the fire protection box 1 can be reduced and the equipment can be made more compact. Furthermore, even if the engagement structure between the mounting bracket 2a and the suspension bolt 7 is different from the above,
By rotating the suspension bolt 7, the fire box main body 8 is
The storage of the air conditioner body 2 in the interior can be facilitated. In addition, 9 shown in FIG. 2 is a decorative panel attached from the indoor side.

Although the specific embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and can be implemented with various modifications within the scope of the present invention. For example, the rotatable structure of the suspension bolt 7 employed in the above-described other embodiment may be employed in the suspension-type ceiling-embedded air conditioner described with reference to FIG.

[0020]

According to the ceiling embedded type air conditioner of the first aspect, the fire protection box is provided with a detachable division, which can be removed to form a pipe connection work space around the connection port of the external communication pipe. It has become. Therefore, it is possible to improve the installation workability while maintaining the fireproof structure of the house.

In the ceiling embedded type air conditioner according to the second aspect, the lower end side of the hanging bracket can be turned outward by using the piping connection space. Therefore, the work of storing the air conditioner body in the fire box can be facilitated while the fire box is downsized.

Furthermore, in the ceiling-mounted type air conditioner according to the third aspect, the implementation can be facilitated, and the fireproof box can be reduced in weight to further improve the installation workability.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a ceiling-mounted air conditioner according to an embodiment of the present invention.

FIG. 2 is a side view showing a ceiling-mounted air conditioner according to another embodiment of the present invention.

FIG. 3 is a schematic sectional view of the ceiling-mounted air conditioner.

FIG. 4 is a transparent side view showing a conventional ceiling-mounted air conditioner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fire prevention box 1a Top plate 1b Long side plate 1c Short side plate 1d Cover plate 1e Engagement piece 1f Wooden frame 2 Air conditioner main body 2a Mounting bracket 3 Dividing part 5 Drain piping 5a Connection port 6 Refrigerant piping 6c Connection port 7 Hanging bolt

Continuation of the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) F24F 1/00 426 F24F 1/02 436

Claims (3)

(57) [Claims] 1. A ceiling-embedded air conditioner comprising a fire box (1) having an open lower surface on the back side of a ceiling and an air conditioner body (2) mounted inside the fire box (1). The box (1) is provided with a connection port (5) for an external communication pipe (5) (6) of the attached air conditioner body (2).
a) The periphery of (6c) is configured as a divided part (3) detachable from the fire box main body (8), and the divided part (3) is removed to allow the inside of the fire box (1) to communicate with the outside. An embedded ceiling type air conditioner characterized in that the area around the communication part is a space for pipe connection work for the external connection pipes (5) and (6). 2. The air conditioner main body (2) includes a hanging bracket (7) projecting downward from a top plate (1a) of the fire protection box (1). The hanging fitting (7) is adapted to be fitted in the fire box (1) by being engaged with the hanging fitting (7), and the hanging fitting (7) arranged on the divided side of the fire box (1). The ceiling-embedded air conditioner according to claim 1, wherein a lower end of the air conditioner is rotatable outward. 3. The fire prevention box (1) includes a gypsum board (1a to 1e) constituting a wall surface of a box body and the gypsum board (1).
3. The ceiling-mounted air conditioner according to claim 1, further comprising: a wooden support member (1 f) that supports a) to (e).