JPH033870Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an improvement in the structure of a ventilation duct of a ceiling air conditioner installed in the ceiling.

[Conventional technology]

Figures 7, 8, and 9 are for example Jikko 52-
These are cross-sectional views of an installation example of a conventional ceiling-type air conditioner shown in Publication No. 12100, and FIG. 7 is a side cross-sectional view in the installed state, FIG. 7 is an enlarged view of section C in FIG. 7, and FIG. is an enlarged view of section B in FIG. 7. In the figure, 1 is the main body, 2 is a heat exchanger housed in this main body, 3 is a drain pan that receives condensed water from the heat exchanger 2, 4 is a blower that blows air to the heat exchanger 2, and 5 is a drive for the blower. 6 is a connection port for connecting piping for supplying cold water, hot water, etc. to the heat exchanger 2;
9 is an outlet flange connecting the outlet duct 8; 9 is an outlet grill connected to the outlet duct 8 and attached to the ceiling surface 10; 11 is a suction duct, and a flange 12 and an intake grill 13 are connected to the main body 1.
The flange 14 is connected to the flange 14. 15 is a frame for attaching the suction grill 13 to the ceiling surface 10, and is attached to the ceiling surface 10 with mounting screws 16; 17 is a gasket for preventing air leakage between the frame 15 and the flange 14; The frame body 15 and the flange 14 are connected to each other by rivets 18 via 17. On the other hand, the main body 1 and the suction duct 11
The connection is fixed with 20 mounting screws via 19 gaskets.

21 is a filter attached to the suction grill 13, and 22 is an inspection port provided on the ceiling surface 10. A conventional ceiling type air conditioner is configured as described above, and the indoor air sucked in from the suction grill 13 is removed by the filter 21, and is ventilated through the suction duct 11 to the heat exchanger 2 by the blower 4 for heat exchange. Cold or hot air is blown into the room from the outlet grille 9 through the outlet flange 7 and the outlet duct 8 to cool or heat the room. On the other hand, a heat medium such as cold water or hot water is supplied to the heat exchanger 2 through a connection port 6. Further, the condensed water condensed in the heat exchanger 2 is received by a drain pan 3 and discharged through a drain pipe 3b via a drain outlet 3a. On the other hand,
The inspection port 22 is provided for operating a valve provided in a heat medium supply pipe or for inspecting electrical wiring (none of which are shown), and has a structure that allows the inspection port 22 to be opened and closed during work. Further, the filter 21 has a structure that can be attached or detached by removing a part or the whole of the suction grille 13.

[Problem that the invention attempts to solve]

Since the conventional ceiling air conditioner is configured as described above, it is necessary to install three of the air outlet 9, the suction port 13, and the inspection port 22 on the ceiling surface 10.
In addition, there were also problems in the installation work, such as the time required to manufacture the duct 11, connect it, and install the suction grill. Also, after using it for a long time, the blower 4
Dust adheres to the heat exchanger 2, resulting in a significant drop in air blowing performance; dust adheres to the heat exchanger 2, reducing heat exchange performance and increasing air resistance; furthermore, dust adheres to the drain pan 3, causing condensed water to flow into the drain pan 3. There are problems such as overflow, which requires periodic inspection and cleaning, which is nearly impossible with conventional structures. In other words, even if the inspection port 22 shown in FIG. 7 is made larger than the air conditioner, it is necessary to remove the suction duct 11 in order to inspect the blower, making it difficult to work within a narrow ceiling. Furthermore, in order to inspect and clean the drain pan 3 and the heat exchanger 2, it is necessary to remove at least the drain piping, and such work is actually impossible. This idea was devised to solve the above problems, and the purpose was to create a ceiling-type air conditioner that would make it easy to inspect and clean the drain pan, blower, heat exchanger, etc., and to install it on the ceiling. It serves both as an inspection port and a suction port, reducing construction work and improving the aesthetic appearance of the ceiling. In addition, the aim is to shorten the construction period by saving on the construction of the suction duct.

[Means for solving problems]

This invention consists of a heat exchanger chamber that houses a heat exchanger, an air suction port that opens downward, and a blower chamber that has a blower that is detachably attached through the air suction port. The air conditioner body is equipped with an air filter at the air suction port and a drain pan at the bottom of the heat exchanger for receiving condensed water generated in the heat exchanger. In the case where the air conditioner is installed in one end of a suction duct, which is made of a flexible material and connects a main body side flange of the lower connecting part of the air conditioner main body and a ceiling side flange of the frame material provided in the ceiling opening; A second locking member formed in a square shape is connected to the end of the main body side flange by engaging the respective ends, and the other end of the suction duct is connected to the end of the frame member. By providing a U-shaped first locking member that is connected to the ceiling side flange portion by overlapping and engaging the ceiling side flange portion, and an elastic locking piece that presses the first locking member, The above object is achieved by constructing a shaped air conditioner.

[Effect]

The ceiling-type air conditioner of this invention has a structure in which the ceiling opening has the functions of both an inspection port and a ceiling-side air inlet, which improves the aesthetic appearance of the ceiling surface and allows the suction duct to be made of soft material. One end is connected to the main body side flange by a second locking member, and the other end of the suction duct is held to the ceiling side flange by the first locking member, and further, the first locking member is connected to the ceiling side flange. By connecting the parts by pressing them together with elastic locking pieces, construction time can be shortened, and in particular, the structure allows easy inspection of the air blower and heat exchanger for dirt, as well as easy cleaning and maintenance. This makes it possible to prevent problems such as performance deterioration and condensed water overflow.

〔Example〕

Fig. 1 is a sectional view of a ceiling type air conditioner showing one embodiment of this invention, and Fig. 2 is a -
FIG.
In the figure, numerals 1 to 8 and 10 are completely the same as or correspond to the conventional device described above. 1a is a heat exchange room that houses the heat exchanger 2, 1b is a blower room,
It has an air suction port 41 that opens downward, and a blower 4 that is detachably attached via the air suction port 41. 23 is the blower stand with the blower 4 attached, 24 is the blower stand 2
3 is a screw fastened from the inside of the main body 1, 25 is a first drain pan that pours the condensed water from the heat exchanger 2 into the drain pan 3 on the downstream side, and 26 and 27 are the filters 21 provided on the main body 1 and the blower stand 23. This is the groove that you insert it into. Further, 10a is a ceiling opening, and the main body 1 is provided corresponding to the ceiling opening 10a. 28 is an inspection port, and 29 is a frame member forming the inner periphery of the ceiling opening 10a. 31
is an inner frame, and 32 is a plate material such as a ceiling material. 3
3 is a hinge pin provided in the frame material 29, which passes through a hole 31a provided in the inner frame 31, rotates around the hinge pin 33 as shown by the solid line arrow in FIG. The inner frame 31 is opened and closed.

Further, 34 is a ceiling side air suction port provided between the frame material 29 and the inner frame 31, and 35 is an inspection port 2 provided in the ceiling opening 10a with respect to the main body 1.
8 is a large space, which is used for operating the valve 36 and inspecting electric circuits and the like. Reference numeral 37 denotes a suction duct connecting the lower end of the air conditioner main body and the frame member 29 of the ceiling opening 10a, and is formed into a cylindrical shape from a bellows-shaped soft material, one end 37a of which is shown in the enlarged view in FIG. 4. One hook-shaped portion 42a of the second locking member 42
The hook-shaped portion 42b is secured to the L-shaped main body side flange portion 1c on the outer periphery of the lower end portion of the main body 1 by the elasticity of the other hook-shaped portion 42b. The other end of the suction duct 37 is connected to a frame member 29 attached to the inner circumference of the ceiling opening 10a.
A U-shaped first locking member 3 as shown in FIG. 5 is attached to the ceiling side flange 29a provided at the upper edge.
8, which is removably attached. The U-shaped first locking member 38 is made of plastic or drawn material such as aluminum, and as shown in the enlarged view of FIG. 5, a serrated portion 38a is formed inside the U-shape. The other end of the suction duct 37 is inserted and held. 43 is an elastic locking piece for firmly press-fitting the first locking member 38 to the ceiling side flange portion 29a, and 39 is a hole provided in the main body 1, which is formed of a spring steel plate or the like. A first drain pan 25 is inserted and supported in this hole, and the other end of this drain pan 25 is attached to the main body frame 1 with a mounting screw 4.
It is locked by 0. The condensed water generated in the heat exchanger 2 is received in the first drain pan 25,
Further, the water flows into the drain pan 3 on the downstream side and is drained through the drain pipe 3b via the drain connection port 3a.

In the ceiling-type air conditioner configured as described above, indoor air is sucked in through the ceiling-side suction port 67 provided in the ceiling opening 10a, and the filter 2
1, blower 4, heat exchanger 2, outlet flange 7,
The air is blown into the room via a blow-off duct 8 and a blow-off grill 9, and is functionally the same as before.

However, when cleaning the filter 21, the inspection port 2
8, the filter 21 can be easily attached and detached from the ceiling opening 10a. Also, when inspecting the blower 4 and motor 5, open the inner frame 31, remove the air filter 21, and remove the air filter 21. By removing the screws 24, the blower stand 23 to which the blower 4 and motor 5 are attached can be removed and attached to the lower part. Further, when cleaning the drain pan 25, it can be easily removed by removing the mounting screw 40 fixed to the main body 1 and moving the drain pan 25 inserted into the hole 39 of the main body 1 to the inside of the main body 1. Also check heat exchanger 2,
When cleaning, inspection and cleaning can be easily performed by removing the blower stand 23 or the first drain pan 25. On the other hand, the structure is such that the space 35 can be used for operations such as operating the valve 36 and inspecting electrical equipment.

In addition, the suction duct 37 is formed into a cylindrical shape from a soft material, and is attached to the air conditioner main body 1 using a removable one-touch type second locking member 42, and is also attached to the frame member 29 of the ceiling opening 10a. is attached using the removable one-touch type first locking member 38 and the elastic locking piece 43, respectively.
It eliminates the need to manufacture steel plate ducts, which have traditionally been used at construction sites, and can shorten the construction period. Furthermore, since the suction duct 37 is made of a soft material, the main body 1 and the ceiling opening 10a can be attached to the frame material 2a even if they are misaligned in the front and back, left and right, and up and down directions. It is simplified.

In the above embodiment, the inspection port 28 is provided with one ceiling-side air suction port 34 on each side, but this number may be one or more without causing any functional problems. , which has the same effect.

[Effect of idea]

As explained above, this device has a heat exchanger chamber that houses a heat exchanger, an air suction port that opens downward, and a blower that is attached so as to be detachable through the air suction port. The air conditioner body corresponds to the ceiling opening, and has an air filter at the air suction port, and a drain pan at the bottom of the heat exchanger to receive condensed water generated in the heat exchanger. and installed in the ceiling, a main body side flange provided on the outer periphery of the lower end of the air conditioner main body,
a frame member that rises toward the inside of the ceiling at the inner periphery of the ceiling opening and has a ceiling-side flange portion formed at its upper edge, and is made of a soft material;
One end of the suction duct that connects the main body side flange at the lower end of the air conditioner main body and the ceiling side flange of the frame material provided in the ceiling opening is connected to the end of the main body side flange, and each end A second locking member formed in a cross-shaped shape is connected by gripping, and the other end of the suction duct is overlapped and gripped to the ceiling side flange of the frame member. Since the ceiling-type air conditioner is constructed by providing a connecting U-shaped first locking member and an elastic locking piece that presses the first locking member from the outside, the above-mentioned ceiling opening In addition, maintenance and inspection of the drain pan, the blower, and the heat exchanger can be easily carried out from inside the suction duct.

In addition, the inspection section, which needs to be installed on the ceiling, doubles as an air intake port on the ceiling, saving construction work and improving the aesthetic appearance of the ceiling. In addition, it eliminates the need to manufacture a suction duct on site, and the connection at both ends of the suction duct connects the main body side flange at the lower end of the air conditioner body and the ceiling side flange of the frame material provided in the ceiling opening. The work became extremely easy and the construction period was shortened.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a ceiling air conditioner showing an embodiment of this invention, Fig. 2 is a sectional view of the cross section at - in Fig. 1, taken in the direction of the arrow, and Fig. 3 is Fig. 1A. FIG. 4 is an enlarged view of section D in FIG. 3, FIG. 5 is a perspective view of the second locking member, FIG. 6 is a perspective view of the elastic locking piece, and FIG. 7 is a conventional view. 8 is an enlarged view of section C in FIG. 7, and FIG. 9 is an enlarged view of section B in FIG. 7. In these figures, 2 is a heat exchanger, 1a is a heat exchanger chamber, 41 is an air suction port, 4 is a blower, 1
b is a blower room, 21 is an air filter, 25 is a drain pan, 1 is an air conditioner main body, 10a is a ceiling opening, 1c is a main body side flange, 29a is a ceiling side flange, 29 is a frame material, 37 is a suction duct, 38 is a first locking member, 42 is a second locking member, and 43 is an elastic locking piece. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] It is composed of a heat exchanger chamber that houses a heat exchanger, an air suction port that opens downward, and a blower chamber that has a blower that is detachably attached through the air suction port. An air conditioner body is installed in the ceiling corresponding to the ceiling opening, and has an air filter at the suction port and a drain pan at the bottom of the heat exchanger for receiving condensed water generated in the heat exchanger. In the above air conditioner body, a frame including a main body side flange provided on the outer periphery of the lower end of the air conditioner main body, and a frame rising toward the inside of the ceiling at the inner circumference of the ceiling opening and having a ceiling side flange formed on the upper edge thereof. one end of the suction duct that connects the air conditioner main body side flange and the ceiling side flange of the frame material provided in the ceiling opening is the end of the main body side flange. The suction duct is connected by engaging each end with a second locking member formed in a square shape, and the other end of the suction duct is overlapped with the ceiling side flange of the frame member. , a ceiling type air conditioner characterized in that the first locking member formed in a U-shape is engaged with the first locking member, and the first locking member is further pressed into contact with an elastic locking piece to be connected.