JPH09170776A - Ceiling panel assembly for ceiling built-in type air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ceiling panel assembly in which a lack of material or occurrence of flow mark can be prevented during an infection molding operation and which can easily be manufactured. SOLUTION: A ceiling panel assembly is comprised of a panel main body 10 formed by infection molding of resin and a fitting plate 70 fitted to the panel main body 10. Lower portions of a peripheral edge side wall 20 and an outer side wall 30 are thick-walled part in which hollow portions 21 and 31 are formed. There are formed recesses 23 and 33 in which the corner portions of these thick-wall portions are recessed from outside so as to cause the hollow portions 21 and 31 to be exposed outwardly. The fitting plate 70 has some engaging projections 71 a to 71d. The fitting plate 70 is engaged with the panel win body 10 through fitting of the engaging projections 71a to 71d to the hollow portions 21 and 31 exposed out of the recesses 23 and 33.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling panel assembly for use in a ceiling-mounted air conditioner and having a panel body molded by resin injection molding, and more particularly, to a ceiling panel assembly attached to the panel body. The present invention relates to a ceiling panel assembly that can be easily attached.

[0002]

2. Description of the Related Art A conventional ceiling-mounted air conditioner includes an air conditioner main body which is housed in a space between a ceiling and a beam and has a heat exchanger and a fan which are housed in a case. And a ceiling panel assembly attached to the main body of the air conditioner. The case of the air conditioner main body is suspended from a stay fixed to the beam, and the ceiling panel assembly comes into contact with the ceiling.

Of these, the ceiling panel assembly comprises a resin panel body molded by injection molding and other components such as a louver for adjusting the wind direction and a dew condensation preventing heater for preventing dew condensation. There is. When mounting such other component, the panel body is provided with a boss or a mounting base for mounting the other component, and the other component is screwed to the boss via a component mounting stay or the like.

[0004]

However, in order to provide such a boss on the panel main body, a partial thick portion is provided on the panel main body, which may cause shrinkage or flow marks during injection molding. It becomes a factor. Further, when the portion where the meat shrinkage or the flow mark is generated is an important portion in the appearance of the product, it becomes a big problem.

Further, if a structure for mounting other components via a component mounting stay or the like is adopted, this leads to an increase in the number of components, the number of assembly steps, and the weight, which in turn leads to an increase in manufacturing cost.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a ceiling panel assembly which has an excellent appearance and can be easily manufactured.

[0007]

In order to achieve such an object, a first means is a ceiling panel assembly used in a ceiling-mounted air conditioner, which is molded by resin injection molding and has at least a side wall and a suction port. And a polygonal-shaped panel body having a panel portion in which a blowout port is formed, and a fitting plate mounted on each corner portion of the panel body and having an engaging projection, the panel body At least one of the side wall and the panel portion has a thick portion inside which a hollow portion is formed, and the hollow portion is cut out from the outside at a position corresponding to each corner portion of the panel body in the thick portion. A cutout portion is provided to expose the portion to the outside, and the fitting plate is mounted on the panel body by fitting the engagement protrusion into a hollow portion near the cutout portion. It is characterized in.

A second means is a ceiling panel assembly used in a ceiling-mounted air conditioner, which has a panel portion formed by resin injection molding and having at least a side wall and a suction port and a blowout port. The panel body is provided with a polygonal panel body and a rotary component that is attached to the panel body and that has a rotation axis and is rotatable around the rotation axis. At least one of them has a thick portion in which a hollow portion is formed, and the thick portion is provided with a notch portion that is cut out from the outside to expose the hollow portion to the outside. The rotary shaft is attached to the panel body by fitting into the hollow portion near the cutout portion.

A third means is a ceiling panel assembly used in a ceiling-mounted air conditioner, which has a panel portion formed by resin injection molding and having at least a side wall and a suction port and a blow port. A panel body having a polygonal shape; and a dew-proof heater attached to the panel body, wherein the panel body has a thick portion in which a hollow portion is formed inside at least one of a side wall and a panel portion thereof. A cutout portion that is cut out from the outside to expose the hollow portion to the outside is provided in the thick portion, and the dew-proof heater is mounted by inserting the cutout portion into the hollow portion of the side wall or the panel portion. It is characterized by that.

According to the present invention, the engaging protrusion of the fitting plate, the rotating shaft of the rotating component, or the dew-proof heater is easily and easily attached to the panel body by using the notch for exposing the hollow portion to the outside. be able to.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 are views showing an embodiment of the present invention.

First, a ceiling-mounted air conditioner will be described with reference to FIG. As shown in FIG. 1, the ceiling-mounted air conditioner 6 is arranged in the space between the ceiling 5 and the beam 4.
The ceiling-mounted air conditioner 6 is attached to an air conditioner body 2 having a heat exchanger 2b and a fan 2c housed in a case 2a, and an exposed front surface of the case 2a of the air conditioner body 2. The ceiling panel assembly 1 is provided. Of these, the case 2a of the air conditioner main body 2 is suspended from the stay 3 fixed to the beam 4, and the ceiling panel assembly 1 has its peripheral edge portion abutted on the ceiling 5.

The ceiling panel assembly 1 is attached to the exposed front surface of the case 2a of the air conditioner body 2 as described above, has a blow-out port 12 to be described later, and has a ceiling-mounted air conditioner 6. It constitutes the bottom.

Next, the ceiling panel assembly 1 will be described in detail. As shown in FIGS. 1 to 4, the ceiling panel assembly 1 includes a panel body 10 and a corner plate (fitting plate) 70 attached to the panel body 10 which will be described later.

Of these, the panel body 10 has a panel portion 60 having a substantially quadrangular shape, as shown in FIGS. An outlet 12 is formed in the panel portion 60 of the panel body 10, and an outer wall 30 is formed at the peripheral edge of the outlet 12. A peripheral side wall 20 is formed on the peripheral edge of the panel portion 60 of the panel body 10, and an inner side wall 40 is formed inside the panel portion 60 of the panel body 10.

A suction port is defined by the inner surface of the inner wall 40 of the panel portion 60, and the suction grill 11 is mounted on the inner surface of the inner wall 40.

Next, referring to FIG. 3, the peripheral side wall 20 and the outer side wall 3 are shown.
0 and the inner side wall 40 will be described. As shown in FIG. 3, the outer wall 30 includes an upper thin portion 30 a and a lower thick portion 3 a.
0b, and a hollow portion 31 is formed substantially in the center of the lower thick portion 30b. The hollow portion 31 extends along the longitudinal direction of the outer wall 30 (depth direction in FIG. 3).

Further, as shown in FIG. 3, the inner wall 40, like the outer wall 30, has an upper thin portion 40a and a lower thick portion 4a.
0b, and a hollow portion 41 extending along the longitudinal direction of the inner side wall 40 is formed at a substantially central portion of the lower thick portion 40b.

Further, the peripheral side wall 20 formed on the peripheral edge of the panel portion 60 of the panel body 10 has a thick cross section as a whole, and a hollow portion 21 is formed at the substantially central portion of the peripheral side wall 20. ing. This hollow portion 21 also has a peripheral side wall 2
0 along the longitudinal direction.

These hollow portions 21, 31, 41 are formed by forcibly generating voids when the panel body 10 is injection molded, and these hollow portions 21, 31, 41 are desired. The molding conditions at the time of injection molding are selected to obtain the above shape.

Further, as shown in FIG. 4, in the vicinity of each corner portion of the outer wall 30 (portion corresponding to P1 in FIG. 2), the entire thin portion 30a and the thick portion 30b from the upper surface 32 side thereof.
A substantially upper half of the above is cut and removed by an end mill or the like so that the hollow portion 31 is exposed to the outside, whereby a cutout portion 33 is formed in the outer wall 30. Further, by this cutting work, the U-shaped holes 35a, 3 corresponding to the cross-sectional shape of the hollow portion 31 are formed in the vertical cutting surfaces 34a, 34b of the outer wall 30.
5b are respectively formed.

Further, in this case, in order to facilitate the cutting process after the injection molding, the upper surface 32 of the outer wall 30 corresponding to the notch 33 is previously formed to be a flat surface during the injection molding, or the notch 33 is formed. It is preferable to form the upper surface 32 of the outer wall 30 corresponding to the lower surface than the surrounding upper surface 32.

Further, each corner portion of the peripheral side wall 20 (see FIG. 2)
Corresponding to P2) of the inner part of the upper surface 2
From the 2 side, approximately two-thirds in the vertical direction is cut and removed so that the hollow portion 21 is exposed to the outside and the outer edge 26 remains, and the cutout portion 2
3 are formed. By this cutting process, circular holes 25a and 25b corresponding to the cross-sectional shape of the hollow portion 21 are formed in the side cutting surfaces 24a and 24b of the peripheral side wall 20, respectively. In addition, the side cutting surface 24b and the circular hole 25
b is provided in the same manner as the side cutting surface 24a and the circular hole 25a.

Further, as shown in FIG. 4, a corner plate 70 having four engaging projections 71a to 71d has the engaging projections 71a to 71d formed in U-shaped holes 35a and 35b, respectively.
The panel body 10 is mounted by fitting the circular holes 25a and 25b.

Next, the operation of assembling the ceiling panel assembly having the above structure will be described.

First, the corner plate 70 is attached to each corner portion of the panel body 10. That is, as shown in FIG. 4, the engaging protrusions 71a and 71b of the corner plate 70 are formed.
Respectively fit into the hollow portion 31 of the outer wall 30 from the U-shaped holes 35a and 35b, and the engaging protrusions 71c and 71d respectively extend from the circular holes 25a and 25b to the hollow portion 2 of the peripheral side wall 20.
1, the corner plate 70 is fitted into the panel body 10
Attached to. Thus, the ceiling panel assembly 1 having the panel body 10 and the corner plate 70 is configured.

Next, another embodiment of the present invention will be described with reference to FIGS. The embodiment shown in FIGS. 5 and 6 is one in which a louver (rotating component) 80 and a dew-proof heater 90 are mounted instead of the corner plate 70, and the other embodiments are the same as those shown in FIGS. It is the same. 5 and 6, the same parts as those in the embodiment shown in FIGS. 1 to 4 are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIG. 5, the louver 80 includes a louver body 81 and a rotary shaft 8 which is the center of rotation of the louver body 81.
Two.

When the louver 80 is attached to the panel body 10, as shown in FIG. 5, first, the mounting portion 81a of the louver body 81 is arranged so as to abut the vertical cutting surface 34a. Next, the rotary shaft 82 is fitted into the hollow portion 31 of the outer wall 30 through the U-shaped hole 35a. Also, the louver 80
The other side (not shown) is also attached to the panel body 10 in the same manner, whereby the ceiling panel assembly 1 having the panel body 10 and the louver 80 is configured.

Further, as shown in FIG. 6, the dew-proof heater 90
Has a heater body 91 and a cord 92.

When the dew-proof heater 90 is mounted on the panel body 10, as shown in FIG. 6, the heater body 91 of the dew-proof heater 90 is exposed to the outside of the outer wall 30 in the hollow portion 3.
1 is inserted. Thus, the ceiling panel assembly 1 including the panel body 10 and the louver 80 is configured.

In each of the above embodiments, the hollow portions 21 and 31 of the peripheral side wall 20 and the outer side wall 30 are exclusively used.
However, the present invention is not limited to this, and the hollow portion 41 of the inner side wall 40 may be used to mount components. In addition, a hollow portion 51 may be formed in the peripheral wall 50 of the suction grill 11 mounted on the panel body 10, and the hollow portion 51 may be exposed to the outside and then the components may be mounted appropriately in the hollow portion 51. Good. Further, a part of the panel portion 60 may be made thick, a hollow portion may be formed in the thick portion, and then the hollow portion may be exposed to the outside to mount a component therein. Further, the portion where the cutout portion is provided is not limited to the corner portion, and for example, the cutout portion 33 is formed substantially at the center in the longitudinal direction of the outer wall 30 and the hollow portion 3 exposed there.
1 may be equipped with components.

[0033]

As described above, according to the present invention,
The panel body has a thick portion in which a hollow portion is formed inside either the side wall or the panel portion. In this way, since the hollow part is formed inside the thick part during injection molding, it is possible to avoid the occurrence of shrinkage and flow marks on the surface of the thick part during injection molding. It is possible to obtain a ceiling panel assembly having a beautiful panel body.

Further, the thick portion is provided with a notch portion which is notched from the outside so as to expose the hollow portion to the outside, and other parts are mounted in the hollow portion which is exposed from the notch portion to the outside. Therefore, it is not necessary to purposely provide a component mounting stay or the like on the side wall and the panel portion. Therefore, the structure for mounting other components on the panel body can be simplified, and the number of mounting steps can be reduced. In addition, the weight of the entire ceiling panel assembly can be reduced with the elimination of stays and the like.

[Brief description of the drawings]

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

FIG. 2 is a diagram showing a state where the panel body of the ceiling panel assembly is viewed from below.

FIG. 3 is a view showing a cross section taken along the line AA in FIG.

FIG. 4 is a view showing a mounted state of a notch portion and a corner plate formed on a panel body.

FIG. 5 is a diagram showing a mounting state of a rotating component according to another embodiment of the present invention.

FIG. 6 is a diagram showing a mounted state of a dew-proof heater according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ceiling panel assembly 10 Panel body 20 Peripheral side wall 30 Outer side wall 40 Inner side wall 21, 31, 41 Hollow part 23, 33 Notch part 70 Corner panel (fitting panel) 80 Louver (rotating part) 82 Rotating shaft 90 Anti-condensation heater

Claims (3)

[Claims] 1. A ceiling panel assembly used in a ceiling-mounted air conditioner, comprising a polygonal panel body molded by resin injection molding and having at least a side wall and a panel portion having a suction port and an air outlet. With being attached to each corner of the panel body,
A fitting plate having an engaging projection, wherein the panel body has a thick portion in which a hollow portion is formed inside at least one of a side wall and a panel portion, and the panel is included in the thick portion. A cutout portion that is cut out from the outside to expose the hollow portion to the outside is provided at a position corresponding to each corner portion of the main body, and in the fitting plate, the engaging protrusion fits in the hollow portion near the cutout portion. A ceiling panel assembly, characterized in that the ceiling panel assembly is attached to the panel body by fitting. 2. A ceiling panel assembly used in a ceiling-mounted air conditioner, the polygonal panel body being formed by resin injection molding and having at least a side wall and a panel portion having a suction port and an air outlet. And having a rotating shaft while being attached to the panel body,
The panel main body has a thick portion having a hollow portion formed in at least one of a side wall and a panel portion thereof, and the turning portion is rotatable about the rotation axis. A notch portion that is notched from the outside to expose the hollow portion to the outside, and the rotating component is attached to the panel body by fitting the rotary shaft into the hollow portion near the notch portion. A ceiling panel assembly characterized by being installed. 3. A ceiling panel assembly used in a ceiling-mounted air conditioner, the polygonal panel body being formed by resin injection molding and having at least a side wall and a panel portion having a suction port and an air outlet. And a dew-proof heater attached to the panel body, wherein the panel body has a thick portion in which a hollow portion is formed inside at least one of a side wall and a panel portion, and the thick portion Is provided with a cutout portion that is cut out from the outside to expose the hollow portion to the outside, and the dew-proof heater is mounted by being inserted from the cutout portion into a hollow portion of a side wall or a panel portion. And ceiling panel assembly.