JPH0336819Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The invention is based on an air conditioner body equipped with a blower and a heat exchanger, with a heat insulating material interposed, and a sheet metal support member of an exterior panel attached to the body using screws. Regarding the panel mounting structure of an installed ceiling-embedded air conditioner.

(Prior art) Conventionally, this type of structure includes, for example, the
The one described in Publication No.-118433 is known. FIG. 14 is an exploded perspective view of the conventional example. In this figure, 101 is the air conditioner main body;
102 is an exterior panel (decoration panel), 103 is
This is a suction grill provided on the exterior panel 102, and the exterior panel 102 is connected to the air conditioner main body 101.
It is attached by screws 104.

(Problems to be Solved by the Invention) However, in the case of the conventional example having such a configuration, when attaching the exterior panel 102 to the air conditioner main body 101, while supporting the exterior panel 102, the air conditioner main body It is necessary to align the screw holes of 101 and exterior panel 102 and tighten the screws 104 while supporting them.Although it is generally lightweight because it is molded with resin, it is necessary to install it on the ceiling. Since it is necessary to lift the exterior panel 102 to a high position and to maintain it in that raised state, there is a drawback that the work of attaching the exterior panel 102 requires time and effort.

The present invention was developed in view of the above circumstances, and it allows the exterior panel to be easily installed, while also avoiding the occurrence of condensation during cooling due to the configuration. The purpose is to make it possible to install it with good appearance.

(Means for solving the problem) In order to achieve this purpose, the present invention
In the panel mounting structure described at the beginning, the screw insertion hole 32 formed in the sheet metal support material 29
A large diameter portion 32a having a diameter larger than the head of the screw 7 and into which the head of the screw 7 is inserted and removed, and a large diameter portion 32a communicating with the large diameter portion 32a and having a smaller diameter than the head of the screw 7 and the screw 7
The air is supplied through the small diameter part 32b to a blind cap 37 which is provided with a small diameter part 32b that locks the head of the screw insertion hole 32 and which elastically fits into the large diameter part 32a of the screw insertion hole 32 to close it. A feature is that a cover part 37a that covers the head of the screw 7 screwed into the harmonizer main body 1 side is integrally formed.

(Function) According to the characteristic configuration described above, the screw 7 is temporarily fixed to the air conditioner main body 1 side, the exterior panel 6 is lifted, and the head of the screw 7 is inserted into the large diameter portion 32a of the insertion hole 32. along with the small diameter portion 3.
2b, and the head of the screw 7 is locked to the small diameter portion 32b to support the exterior panel 6. In this supported state, screws 7 are tightened to attach the exterior panel 6 to the air conditioner main body 1 side. And blind cap 37
is elastically fitted to the large diameter portion 32a to close the large diameter portion 32a, and the head of the screw 7 can be covered by the cover portion 37a.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings. FIG. 1 is an exploded perspective view from below of a ceiling-embedded air conditioner to which a panel mounting structure according to an embodiment of the present invention is applied, and FIG. 2 is a partially cutaway exploded perspective view from above. .

In these figures, 1 is an air conditioner main body, and this air conditioner main body 1 has four hanging bolts 3 hanging from a structure in the ceiling via connecting fittings 2 protruding from both left and right outer surfaces of the air conditioner main body 1. The lower part of the air conditioner main body 1 is placed in a rectangular opening 5 formed in the ceiling plate 4.

The opening 5 is located at the lower end of the air conditioner main body 1.
An exterior panel 6 configured to be large enough to close the is attached with four screws 7. Furthermore, the middle panel 10 as a panel having the filter 9 removably attached to the rectangular opening 8 of the exterior panel 6 is hinged at three locations 11A, 11B, 11B.
It is provided so that it can be opened and closed by swinging.

As shown in FIG. 2, the air conditioner main body 1 includes a box-shaped main body casing 12 that opens downward, an electric motor 13, and a pair of left and right blowers 14, 14 driven by the electric motor 13. A heat exchanger 15, an auxiliary heater 16, and a wind direction converter 17, which are connected via piping to an outdoor unit, are housed inside the main body casing 12, and an electrical box 18 is attached to the outer side of the main body casing 12.

The wind direction changing device 17 is composed of a louver 19 that adjusts the wind direction in the horizontal direction, and a flap 20 that adjusts the wind direction in the vertical direction.

The louver 19 has disk-shaped wind direction plates 23 attached diagonally to a support shaft 22 rotated by an electric motor 21 equipped with a gear reduction device, with a predetermined interval between adjacent ones. It is configured. Further, as shown in FIGS. 3 and 4, the flap 20 is constructed by providing a curved plate-shaped plate on the back surface of the louver 19 so as to be able to swing vertically. An electric motor 24 with a gear type reduction device and a crank arm 25
and are operatively connected via link 26.

As shown in FIG. 4, the auxiliary heater 16 has C-shaped holding members 28 attached to support members 27 attached to the main body casing 12 at both left and right ends thereof.
It is installed through.

The entire exterior panel 6 is molded from a resin material, and support members 29 made of sheet metal are screwed to each of its longitudinal sides, and on both longitudinal edges of the rectangular opening 8. A reinforcing frame 30 having an L-shaped cross section is screwed, and an intermediate reinforcing frame 31 is screwed across the supporting members 29, 29 within the opening 8, so that the overall rigidity is high and shape retention is high. It is configured.

The screws 7 for attaching the exterior panel 6 to the lower end of the main body casing 12 are inserted into the first insertion holes (total of 3
32 and a single circular second insertion hole 33 are formed.

The first insertion hole 32 is formed in such a shape that a large diameter portion 32a having a larger diameter than the head of the screw 7 and a small diameter portion 32b having a smaller diameter than the head of the screw 7 communicate with each other.

With the above configuration, when attaching the exterior panel 6 to the air conditioner main body 1, first, the screws 7 at the locations corresponding to the three first insertion holes 32 are temporarily fastened to the main body casing 12. These 3
The heads of the screws 7 are made to protrude downward through the large diameter portions 32a of the first insertion holes 32 of the exterior panel 6 relative to the screws 7, and then the screws 7 are inserted into the small diameter portions 32b.
... is inserted, and the exterior panel 6 is hooked by the heads of the screws 7. Then the second
Align the insertion hole 33 with the screw hole 34 of the main body casing 12 and insert the screw 7 to determine the position. After that, tighten the four screws 7 to attach and fix the exterior panel 6 to the main body casing 12. It can be done.

As shown in FIGS. 5, 6, and 7, each of the first and second insertion holes 32..., 33 has an inner peripheral edge (for the first insertion hole 32, only the peripheral edge of the small diameter portion). A rising piece 35 protruding toward the main body casing 12 side is formed in a bent manner. Lower end surface and rising piece 3
The spacing between the support member 29 and the main body casing 12 is regulated and maintained by the contact with the support member 29 and the main body casing 12, and if the screws 7 are screwed in more strongly than necessary, the support member 29 may be bent and deformed toward the main body casing 12 side. Along with this, the heat insulating material 36 is configured to be prevented from being compressed and deformed and deteriorating its heat insulating properties.

Further, after the exterior panel 6 is attached and fixed to the main body casing 12, a rubber blind cap 37 is elastically fitted from below into the large diameter portion 32a of each of the first insertion holes 32. High-temperature and humid air in the attic space flows into the indoor side through each of the insertion holes 32, and during cooling operation, the support material 29
The structure is such that condensation can be prevented from forming on the downward facing surface. A cover part 37a that covers and hides the head of the screw 7 is integrally connected to the blind cap 37, so that when the middle panel 10 is opened,
The head of the screw 7 is not exposed and the appearance can be enhanced. In addition, in the second insertion hole 33, a large diameter attachment hole 38 is formed in the vicinity thereof, and a blind cap 37 is attached to this attachment hole 38.
The head of the screw 7 is covered by a cover portion 37a.

As shown in FIG. 8, three hinges 11A, 11B,
The middle panel 10 is swingably connected via 11B.

As shown in FIGS. 9 to 11, among the hinges 11A, 11B, and 11B, the central hinge 11A
The hinge member 11a on the exterior panel 6 side and the hinge member 11b on the middle panel 10 side are pivotally connected by a pin 40 while being positioned in the direction of the swing axis. On the other hand, the hinges 11B on both the left and right sides,
11B, both hinge members 11a,
11b, a predetermined amount (for example, 2
~3mm) flexibility is provided. With this configuration, the middle panel 10 is caused to move more in the direction of the swing axis than the exterior panel 6 due to temperature changes during heating and cooling, especially temperature changes associated with switching between heating and cooling. Even if it expands or contracts, the difference in the amount of expansion or contraction is absorbed by the flexibility, and the middle panel 10 is configured to be prevented from being distorted or deformed.

The width of the middle panel 10 in the direction perpendicular to the swing axis is shorter than the opening width of the opening 8 in the direction perpendicular to the swing axis by a set length, and the middle panel 10 is in the closed position. In this state, between the free edge of the middle panel 10 and the inner peripheral edge of the opening 8,
A blowout port 41 is formed to blow out air through the heat exchanger 15.

In addition, a suction grill 42 as a suction port is formed at a portion of the middle panel 10 extending from the center in the direction orthogonal to the swing axis direction to the swing axis side. The filters 9, 9 are removably attached via clamp pieces 43.

Further, on the front and rear peripheral edges of the air outlet 41, that is, on the inner peripheral edge of the exterior panel 6 facing the air outlet 41, and on the free end edge of the middle panel 10 opposite thereto, air outlets made of a heat insulating material made of foamed resin are provided. Forming members 44, 45 are attached. Two protrusions 46, 46 are formed on the upper surface of the air outlet forming member 45 on the side of the middle panel 10. These protrusions 46, 46 are connected to the heat exchanger 15 of the air conditioner main body 1 when the middle panel 10 is in the closed state.
Drain pan 4 for collecting condensed water installed at the bottom of
It is configured to be pressed into contact with a heat insulating material 48 affixed to the lower surface of 7.

In this way, by forming the two protrusions 46, 46 on the upper surface of the air outlet forming member 45 on the side of the middle panel 10, the protrusions 46, 46 act as insulation materials when the middle panel 10 is in the closed position. 48, a part of the air blown from the air outlet 41 flows into the suction grille 42 from below the drain pan 47, and it is possible to avoid unexpected condensation during cooling. There is.

Air outlet forming member 45 on the middle panel 10 side
At a position on the swing axis side, a flexible sealing heat insulating material 39 with a foaming degree higher than that of the outlet forming member 45 extends in a direction parallel to the swing axis, and is connected to the heat insulating material 48 on the lower surface of the drain pan 47. It is attached so as to be greatly compressed and deformed between the holes, thereby making it possible to better prevent blown air from flowing into the intake grille 42 side.

12 and 13 between a predetermined location on the free end side of the middle panel 10 and a predetermined location on the exterior panel 6.
As shown in the figure, a locking mechanism 49 is interposed to fix the middle panel 10 in the closed state.

That is, engagement pins 50 are mounted and supported on the lower surfaces of both left and right sides of the exterior panel 6 via mounting brackets 51 and 52. On the other hand, on the upper surface of the left and right sides of the middle panel 10, there are claw portions 53 that engage with the engagement pins 50.
A lock piece 54 is provided to be rotatable back and forth via a bracket 55, and is biased by a compression coil spring 56 so that the claw portion 53 rotates in the direction of engagement with the pin 50.

Therefore, when the middle panel 10 is pushed up and swung to the closed position, the pin 50 comes into contact with the inclined upper edge of the claw portion 53, and the lock piece 54 resists the biasing force of the compression coil spring 56. swayed,
With the middle panel 10 closed, the pin 50 climbs over the inclined upper edge, the lock piece 54 rotates under the biasing force of the compression coil spring 56, and the claw portion 53 engages with the pin 50 from above. The panel 10 is configured to be fixedly maintained in a closed state.

Further, a lock release piece 58 is provided on the middle panel 10 so as to be slidable only in the front and back direction by a metal fitting 57, and the tip of the lock release piece 58 is engaged with the lock piece 54. The free end side of the middle panel 10 protrudes from the middle panel 10 and is bent. With this configuration, by pushing the bent portion 58a toward the pivot axis of the middle panel 10, the lock piece 54 is forcibly pivoted against the biasing force of the compression coil spring 56, and the pin 50
By removing the claw portion 53 from the center panel 10 and releasing the lock, the middle panel 10 can be swung downward to be displaced to the open state. In the figure, reference numeral 59 denotes a hanging cord that maintains the middle panel 10 in an open state at a predetermined angle when the filters 9, 9 are attached or removed.

(Effect of the invention) As described above, according to the invention, the exterior panel 6
with the screw 7 supported by the head of the screw 7.
The exterior panel 6 can be attached to the air conditioner main body 1 by tightening the insertion hole 32.
It is only necessary to support the exterior panel 6 while the head of the screw 7 is inserted into the large diameter portion 32a of the screw 7, and the screw 7 is moved horizontally to the position where the screw 7 is inserted into the small diameter portion 32b. The exterior panel 6 can now be easily attached to the air conditioner main body 1 without having to do any additional screwing work.

Moreover, when the insertion hole 32 is formed as described above, the attic space and the room are communicated through the large diameter part 32a, and during cooling, the hot and humid air in the attic space flows into the room, and the insulation is improved. Although the large diameter portion 32a of the insertion hole 32 is pasted, condensation occurs when the material 36 comes into contact with the cold air, resulting in the problem of dew forming and adhering to the ceiling surface.
By attaching a blind cap 37 to the blind cap 37 and closing it, it is possible to prevent hot and humid air from entering the room and solve the problem of condensation. cover your head,
It has also become possible to improve the appearance.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a ceiling-embedded air conditioner according to an embodiment of the present invention seen from below, and FIG. 2 is a partially cutaway exploded perspective view of the one shown in FIG. 3 is an overall cross-sectional view, FIG. 4 is an enlarged sectional view of the air outlet portion, and FIG. 5 is an exploded perspective view showing the connecting portion of the exterior panel to the main body casing.
FIGS. 6 and 7 are sectional views of main parts showing how the exterior panel is connected to the main casing, respectively;
Figure 8 is a plan view of the inside of the middle panel;
The figure is a partially cutaway plan view showing the connecting part of the middle panel.
10 is a cross-sectional view of the main part of FIG. 9, FIG. 11 is a perspective view of FIG. 10, FIG. 12 is a sectional view showing the lock structure of the middle panel, and FIG. FIG. 14 is an exploded perspective view of a conventional example. 1... Air conditioner body, 6... Exterior panel, 7
...Screw as screw member, 14...Blower, 1
5... Heat exchanger, 29... Sheet metal support material, 32...
...first insertion hole, 32a...large diameter part, 32b...small diameter part, 37...blind cap, 37a...cover part.

Claims (1)

[Scope of Claim for Utility Model Registration] A ceiling in which a sheet metal support member 29 of an exterior panel 6 is attached with screws 7 to an air conditioner body 1 equipped with a blower 14 and a heat exchanger 15, with a heat insulating material 36 interposed therebetween. In the panel mounting structure of the embedded air conditioner, the screw insertion hole 3 formed in the sheet metal support member 29
2, a large diameter portion 32a that has a larger diameter than the head of the screw 7 and into which the head of the screw 7 is inserted and removed;
a, and has a smaller diameter than the head of the screw 7 and locks the head of the screw 7, and is elastically fitted into the large diameter portion 32a of the screw insertion hole 32. A ceiling-embedded air conditioner, in which a cover part 37a covering the head of the screw 7 screwed into the air conditioner main body 1 side through the small diameter part 32b is integrally formed on a blind cap 37 that closes it. Panel mounting structure of harmonizer.