JPH06137610A - Air conditioning apparatus - Google Patents

Abstract

PURPOSE:To enhance reliability of a reactor by preventing rainwater, dust and the like from entering into an outdoor machine and gathering on a bottom plate of the reactor to adversely affect the same. CONSTITUTION:A reactor securement plate 19 is mounted on an electric part box 18 disposed above a bottom plate, and a reactor 21 is inserted in and secured to engagement pawls 20a to 20c of the reactor securement plate 19 by set screws 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner having an improved reactor mounting point.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 7, an outdoor unit of this type of air conditioner has an outdoor fan 2 and a reactor 3 on a bottom plate of an outdoor cabinet, which is a main body case. It is attached together with the exchanger.

[0003]

However, in such a conventional outdoor unit, rainwater, dust, etc. easily enter the outdoor cabinet and accumulate on the bottom plate 1, which adversely affects the electrical characteristics of the reactor 3. However, there is a problem that reliability is lowered due to the possibility of giving

Therefore, the present invention has been made in consideration of such circumstances, and an object thereof is to install an reactor above a bottom plate of an outdoor cabinet to provide an air conditioner capable of enhancing the reliability of the reactor. To provide.

[0005]

The present invention is configured as follows in order to solve the above-mentioned problems.

The invention according to claim 1 of the present application (hereinafter, referred to as the first
Of the invention), in an air conditioner having a main body case having a bottom plate and a rear plate, and a reactor and an electric parts box arranged above the bottom plate, the reactor is
It is characterized in that it is attached to one of the electric component box and the rear plate.

The invention according to claim 2 of the present application (hereinafter referred to as the second invention) includes a reactor and an electrical component arranged above the bottom plate in a main body case having a bottom plate and a rear plate. An air conditioner including a box is characterized in that the reactor is installed between the electric component box and the rear plate.

[0008]

Since the reactor is not attached to the bottom plate of the main body case but is attached to the electric component box installed above the bottom plate or the rear plate of the main body case, rainwater and dust enter the main body case, Even if they collect on the bottom plate, they can be prevented from adversely affecting the electrical characteristics of the reactor, and the reliability of the reactor can be improved.

[0009]

Embodiments of the present invention will be described below with reference to FIGS.

FIG. 2 is an exploded perspective view showing a part of an outdoor unit of an air conditioner to which the first and second inventions of the present application are omitted, in which the outdoor unit 11 has a bottomed rectangular plate shape. Bottom plate 12
An outdoor fan 13 and a compressor (not shown), an outdoor heat exchanger, etc. are installed on the inner bottom surface of the front cabinet 14 on the front edge of the bottom plate 12, and a back cabinet 15 having a rear panel 15a on the rear edge. Are erected and assembled in the outdoor cabinet 16 which is the main body case.

The partition plate 1 is provided on one side edge of the bottom plate 12.
7 is erected, and an electric component box 18 for accommodating inverter components is arranged inside thereof and above the bottom plate 12.

Then, as shown in FIG.
For example, a reactor fixing plate 19 having a U-shaped cross section is fixed to the corners of the outer surface of the back by welding, screwing, or the like. The outer surface of the reactor fixing plate 19 has an upper right end portion and lower left and right end portions in the figure. For example, three locking claws 20a, 20b, 20c, which project slightly outward in the horizontal direction and bend at substantially right angles inward in the vertical direction, are provided so as to project into these locking claws 20a to 20c. The reactor 21 is inserted laterally (in the direction indicated by the arrow in FIG. 1), and the substrate 21b of the reactor 21 is fixed to the reactor fixing plate 19 by the set screw 22.

Therefore, according to this embodiment, the reactor 2
Since 1 is attached to the back surface of the electric component box 18 disposed above the bottom plate 12 and is not attached to the bottom plate 12, even if rainwater or dust that has entered the outdoor cabinet 16 collects on the bottom plate 12, As a result, it is possible to prevent the reactor 21 from being adversely affected, and it is possible to improve the reliability of the reactor 21.

Further, since the reactor 21 can be easily attached to and detached from the electric component box 18 by attaching and detaching the set screw 22, it is possible to easily perform service such as replacement of the reactor 21. Furthermore, since the reactor 21 is not directly attached to the electric component box 18 but is attached via the reactor fixing plate 19,
The relatively heavy reactor 21 can be mounted upright in the vertical direction, and can be reliably mounted to the electrical component box 18 while saving the installation space.

In addition, since the reactor 21 is provided between the electric component box 18 and the rear plate 15a, which is a gap on the suction side of the fan 2, the reactor 21 is disposed in the air passage, so that the suction air is generated. Cooling of the reactor 21 is promoted.

Although the electric component box 18 is made of a relatively thin plate, the reactor 21 is relatively heavy, so that the reactor fixing plate 19 and the rear plate 15a of the back cabinet 15 facing the reactor fixing plate 19 are provided as shown in FIG. L-shaped reinforcing plate 2 between
Two may be installed.

That is, the reinforcing plate 22 has its straight front end abutted against the lower outer surface of the reactor fixing plate 19 in FIG. 3, while its L-shaped bent end 22a is attached to the rear plate 15a of the back cabinet 15. It is fixed to the inner surface with screws. For this reason, a part of the load applied to the electric component box 18 by the reactor 21 is partially passed through the reinforcing plate 22 to the rear plate 15a.
The strength of the electrical component box 18 can be reinforced because it can be shared.

FIG. 4 is a perspective view of an essential part of another embodiment of the present application. In this embodiment, a substantially L-shaped reactor fixing plate 23 is provided at the corner of the outer back surface of the electric component box 18 and its L-shaped. Bent end 2
3a is fixed by welding or the like so that it is located on the right end side in the drawing, and the upper and lower end portions of the outer surface of the reactor fixing plate 23 are
The locking plates 24a, 24b having an L-shaped cross section are arranged so that their open ends face each other, and
a is inserted from the left end of the locking plates 24a, 24b in the drawing to the right in the drawing and slid, and a pair of upper and lower locking plates 24a, 24a,
The upper and lower ends of the reactor substrate 21a are detachably held by 24b.

At the corners between the upper end and the left end of the reactor fixing plate 23 in the figure, a substantially L-shaped upper reinforcing plate 25 is fixed by a set screw 26 as shown in FIG.

The upper reinforcing plate 25 has the L-shaped bent end portion 2 thereof.
For example, as shown in FIG. 3, the outer surface of 5a is brought into contact with the inner surface of the rear plate 15a of the back cabinet 15 and fixed by a set screw and fitting.

Further, a stopper portion 25b bent so as to stand substantially at a right angle is integrally formed at the base end portion (the left end portion in FIG. 4) of the upper reinforcing plate 25, and this stopper portion 25b is formed.
The left end of the reactor substrate 21a is brought into contact with the inner surface of the. As a result, the left and right ends of the reactor substrate 21a in the figure are sandwiched from the left and right by the L-shaped bent end 23a of the reactor fixing plate 23 and the stopper portion 25b, and a pair of upper and lower locking plates 24a, 2
It is possible to prevent the reactor fixing plate 21a from coming off from 4b.

Although the reactor 21 is attached to the electric component box 18 in the above embodiment, the present invention is not limited to this. For example, as shown in FIG. 6, the rear plate 15a of the back cabinet 15 is shown. 1 or 3 on the inner surface of the upper part of the reactor fixing plate 19 or FIG.
Alternatively, the reactor fixing plate 2 may be attached, and the reactor 21 may be attached to these so that the reactor 21 can be inserted and removed from the lateral direction.

Further, by mounting the reactor 21 on the rear plate 15a having a large heat radiation area between the electric component box 18 and the rear plate 15a, which is a gap on the suction side of the fan 2, cooling of the reactor 21 is further promoted. To be done.

[0024]

As described above, according to the present invention, the reactor is installed above the bottom plate in the main body case. Therefore, even if rainwater, dust, etc. enter the main body case and collect on the bottom plate, It is possible to prevent the reactor from being adversely affected by rainwater and dust and to enhance the reliability of the reactor.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of an air conditioner according to a first invention of the present application.

FIG. 2 is an exploded perspective view showing the outdoor unit to which the embodiment shown in FIG. 1 is applied, with a part of the outdoor unit omitted.

FIG. 3 is a longitudinal sectional view of an essential part of an embodiment of the second invention of the present application.

FIG. 4 is a perspective view of an essential part of another embodiment of the present invention.

5 is a perspective view of the upper reinforcing plate shown in FIG.

FIG. 6 is a perspective view of an essential part showing still another embodiment of the present invention.

FIG. 7 is a partial exploded perspective view of a conventional example.

[Explanation of symbols]

 11 Outdoor Unit 12 Bottom Plate 13 Outdoor Fan 14 Front Cabinet 15 Back Cabinet 15a Rear Plate 16 Outdoor Cabinet 18 Electrical Component Box 19 Reactor Fixing Plate 20a to 20c Engaging Claw 21 Reactor 21a Reactor Substrate 22 Reinforcing Plate 22a Bending End 23 Upper Reinforcing Plate 23a Bend ends 24a, 24b A pair of locking plates 25 Upper reinforcing plate 25a Bend end 25b Stopper part 26 Set screw

Claims (2)

[Claims] 1. A main body case having a bottom plate and a rear plate,
An air conditioner having a built-in reactor and an electric parts box arranged above the bottom plate, wherein the reactor is attached to one of the electric parts box and the rear plate. 2. A main body case having a bottom plate and a rear plate,
An air conditioner including a reactor and an electric parts box arranged above the bottom plate, wherein the reactor is installed between the electric parts box and the rear plate.