JPH05133545A - Ceiling installation type air conditioner - Google Patents

Abstract

PURPOSE:To obtain a ceiling-mounting type air conditioner which is free of deformation of a service board for electric equipment box even if it is pushed up by error. CONSTITUTION:An electric equipment box 15, which incorporates an electric circuit capable of controlling an air conditioner, is mounted on the bottom of a heat exchanger unit installed to the ceiling while a service board 23 is mounted removably on the ceiling, thereby constituting a ceiling-mount type air conditioner. A guide piece 25 is installed to the edge of the opening of the electric equipment box in such a fashion that the edge of the service board 23 may fit thereinto.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling-mounted air conditioner which prevents deformation of an electrical equipment box attached to a heat exchange unit.

[0002]

2. Description of the Related Art Generally, a ceiling-embedded air conditioner in which a heat exchange unit is embedded in a ceiling and a decorative panel is attached to the lower surface of the heat exchange unit is known.

In this type, an electric equipment box of an air conditioner is usually attached to the lower surface of the heat exchange unit (for example, Japanese Utility Model Publication No. 62-15699). Here, in general, a service plate forming a lid is attached to the electrical equipment box, and the service plate is configured to be opened and closed for maintenance after installation of the air conditioner. The electrical equipment box is formed in a box shape using a thin steel plate, and the thin service plate is fixed to the opening of the electrical equipment box with, for example, four screws.

[0004]

However, in the conventional structure, when the heat exchanging unit is lifted and embedded in the ceiling, if the service plate of the electrical equipment box is accidentally pushed up, the service plate is deformed so as to be recessed. However, there is a problem of damaging the electric parts in the electrical equipment box.

Therefore, an object of the present invention is to solve the above-mentioned problems of the prior art, and even if the service plate of the electrical equipment box is accidentally pushed up, the service plate will not be deformed. To provide a machine.

[0006]

In order to achieve the above object, the present invention is to install an electrical equipment box containing an electric circuit for controlling the operation of an air conditioner on the lower surface of a heat exchange unit installed on a ceiling. In a ceiling-mounted air conditioner in which a service plate is detachably attached to the opening of the electrical equipment box, a guide piece with which the edge of the service board fits is provided at the edge of the opening of the electrical equipment box. Is.

[0007]

According to the present invention, the heat exchanging unit is lifted up and embedded in the ceiling in a state where all the heat exchanging units are assembled, that is, in a state where even the electric equipment box is attached. At this time, since the opening surface of the heat exchange unit to which the electrical equipment box is attached faces toward the indoor side, when lifting it upward, the opening surface side is supported and lifted. In such a case, when the heat exchange unit is lifted, even if the service plate of the electrical equipment box is accidentally pushed up, the service plate is fitted into the guide piece, and therefore the service plate is deformed so as to be recessed upward. There is nothing to do. Therefore, the electric circuit in the electrical equipment box is not damaged.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 denotes a ceiling-embedded heat exchange unit. The heat exchange unit 1 is embedded in the ceiling so that the opening surface (upper surface in the drawing) faces the indoor side, and a decorative panel (not shown) is usually attached to the opening surface to form an air conditioner. To be done. A centrifugal fan 3 and a heat exchanger (not shown) are arranged inside the heat exchange unit 1, and a drain pan 5 made of Styrofoam is fitted on the centrifugal fan 3 so as to cover them, and the drain pan 5 is thin. It is fixed to the opening of the heat exchange unit 1 by a steel plate holding metal fitting 7. Further, the heat exchange unit 1 is provided with a pair of brackets 11 and 13 protruding toward the opening surface side, and the brackets 11 and 13 have receiving grooves 11a and 13 respectively.
a is formed, and the support pin 15a of the electrical equipment box 15 is locked in the receiving grooves 11a and 13a.

That is, according to the present embodiment, the electrical equipment box 1 described above is used.
5 has been devised. As shown in FIG. 2, the electrical equipment box 15 is made of a thin steel plate, and includes a box-shaped main body 21 and a service plate 23 that constitutes a lid of the main body 21. An electric circuit (that is, an electric component) for controlling the operation of the device is incorporated. The service plate 23 can be opened and closed for maintenance after the installation of the air conditioner.

A guide piece 25 is provided on one side edge of the main body 21 so that one side edge of the service plate 23 fits thereinto.
As shown in FIG. 3, the guide piece 25 includes a lower guide piece 25a for supporting the service plate 23 from below and an upper guide piece 25b for pressing the service plate 23 from above with the heat exchange unit 1 embedded in the ceiling. It consists of and.

The two guide pieces 25a, 25b are arranged in a substantially V shape when viewed from the side, and the length dimension lb of the upper guide piece 25b is larger than the length dimension la of the lower guide piece 25a, that is, It is set to lb> la. The dimensional relationship is set as described above when the service plate 23 is attached to the electrical equipment box 15 even if the service plate 23 is directed diagonally above or diagonally below the upper edge of the electrical equipment box 15. This is because one side edge first hits the upper guide piece 25b having a large length dimension lb so that the one side edge can be positioned.

When the one side edge of the service plate 23 is positioned by such means, then the service plate 23 is smoothly fitted into the guide piece 25. The other side edge of the service plate 23 is fixed to the receiving piece 27 of the main body 21 by using a screw although not shown. That is, this receiving piece 27
Is formed on the edge of the main body 21 in the lateral direction, and a screw hole 27a is screwed therein, and the service plate 2 is inserted into this screw hole 27a.
Screws that penetrate the screw holes 23a of No. 3 and support the service plate 23 are screwed together.

Next, the operation of this embodiment will be described.

The heat exchange unit 1 is, as shown in FIG.
In a state where everything is assembled, that is, even the electric equipment box 15 is attached, it is lifted up and embedded in the ceiling. At this time, since the opening surface of the heat exchange unit 1 to which the electrical component box 15 is attached faces toward the indoor side, when lifting it upward, the opening surface side is supported and lifted.

In such a case, according to the present embodiment, when the heat exchange unit 1 is lifted, the electrical equipment box 1 is erroneously loaded.
Even if the service plate 23 of 5 is pushed up, since the service plate 23 is supported by the upper guide piece 25b, the service plate 23 does not deform so as to be recessed upward.

Further, according to this structure, the heat exchange unit 1
After burying it in the ceiling, the service plate 23
Since it is supported by a, the service plate 23 does not hang downward due to its own weight.
Since it is firmly fitted inside, even if vibration occurs in the entire heat exchange unit 1, the service plate 23 does not vibrate and abnormal noise does not occur.

However, in the conventional construction, there is no equivalent to the guide piece 25, the service plate 23 is deformed when the heat exchange unit 1 is lifted, and an abnormal sound is generated due to the vibration of the service plate 23 during the operation of the unit. However, according to this, it is possible to surely eliminate the above trouble.

[0019]

As is apparent from the above description, according to the present invention, since the guide piece with which the edge of the service plate fits is provided at the edge of the opening of the electrical equipment box, the heat exchanging unit is erroneously lifted. Even if the service plate of the electrical component box is pushed up, the service plate does not deform so as to be recessed upward, and it is possible to surely eliminate the damage trouble of the electric circuit in the electrical component box.

[Brief description of drawings]

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

FIG. 2 is a perspective view showing a main part of the present invention.

FIG. 3 is a cross-sectional view of a main part of the electrical equipment box shown in FIG.

[Explanation of symbols]

 1 Heat exchange unit 3 Centrifugal fan 5 Drain pan 7 Holding metal fittings 15 Electrical equipment box 21 Main body 23 Service plate 25 Guide piece 25a Lower guide piece 25b Upper guide piece

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Hisashi Kogure 2-18 Keihan Hondori, Moriguchi City, Osaka Prefecture Sanyo Electric Co., Ltd. (72) Inventor Isao Moriyama 2-18, Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd. Incorporated (72) Inventor Takashi Mochizuki 2-18 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd. (72) Inventor Shinichi Nishikawa 2-18 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd.

Claims (1)

[Claims] 1. An electric equipment box having an electric circuit for controlling the operation of an air conditioner is attached to a lower surface of a heat exchange unit installed on a ceiling, and a service plate is detachably attached to an opening of the electric equipment box. In the ceiling-mounted air conditioner, a guide piece with which the edge of the service plate is fitted is provided at the edge of the opening of the electrical equipment box.