JPH0522133B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an indoor unit for an air conditioner, and more particularly to an indoor unit for an air conditioner that has an improved rear plate to facilitate assembly and maintenance.

[Technical background of the invention and its problems] In general, the indoor unit of a wall-mounted air conditioner is
As shown in FIG. 4, a heat exchanger 3, a cross-flow fan 4, a fan casing 5, a drain pan 6, an electric box 7, etc. are accommodated between a front panel 1 and a rear plate 2.

However, conventionally, the rear plate 2 is integrally molded to a size that covers the entire rear part of the front panel 1 at once, and a fan 4 is installed between the rear plate 2 and the heat exchanger 3. Since the casing 5 was interposed, the following problems arose.

First, it is necessary to guide the auxiliary piping 8 of the heat exchanger 3 behind the rear plate 2, but since the rear plate 2 is large, it is necessary to make a hole 9 in it and pass the auxiliary piping 8 through. Since the operation of inserting the pipe 8 through the hole is complicated, it is difficult to assemble the heat exchanger 3.
It was difficult to automate assembly.

Further, since the heat exchanger 3 covers the entire surface of the fan casing 5, it is necessary to remove the heat exchanger 3 when performing maintenance and inspection of the fan 4 and the motor 10, making maintenance difficult.

Furthermore, since the drain pan 6 was constructed independently, there were disadvantages in that parts inspections were required frequently and assembly was time-consuming.

[Object of the Invention] The present invention has been devised to solve the drawbacks of the above-mentioned prior art, and its purpose is to make it particularly easy to assemble the heat exchanger, and to facilitate the assembly. To provide an indoor unit of an air conditioner in which inspection and replacement of a fan and fan motor can be easily performed without removing a heat exchanger.

[Summary of the Invention] In order to achieve the above object, the present invention provides an indoor unit for an air conditioner in which a heat exchanger, a fan, etc. are housed between the front panel and the rear plate, in which the rear plate is divided into upper and lower halves. , is characterized in that a drain pan is integrally formed on the divided upper rear plate, and a fan mounting portion is formed on the lower rear plate.

[Embodiments of the Invention] A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

In Fig. 1, reference numeral 11 indicates an indoor unit of a wall-mounted air conditioner, and the indoor unit 11 includes a front panel 1, a rear plate 2 detachably provided at the rear of the front panel 1, and a front panel 1 and a rear plate 2. It consists of a heat exchanger 3, a fan 4, an electric box 7, etc., which are housed in a housing defined by partitions. An auxiliary pipe 8 is connected to one end of the heat exchanger, and a metal fitting 12 for detachably attaching the electric box 7 is provided.

The rear plate 2 is divided into upper and lower halves, and the upper rear plate 13 of the divided upper part is formed so as to hold the heat exchanger 3 from the rear as shown in FIGS. 2 and 3. The front part is open. Further, a drain pan 14 for receiving drain generated from the heat exchanger 3 is integrally formed in the lower front side of the upper rear plate 13 via arms 15 on both sides in the width direction.

The auxiliary pipe 8 of the heat exchanger 3 is connected to the upper rear plate 13
After being guided rearward through the outside of the side part 16 of
As shown by the chain line in FIG. 3, it is bent downward along the rear plate 13 and further bent laterally. A projecting piece 18 is formed on the upper rear plate 13 to support from the rear the vertical pipe portion 17 of the auxiliary pipe 8 guided rearward on the outside of the side surface 16. The vertical pipe portion 17 of the auxiliary pipe 8 is sandwiched between the electric box 7 attached to the exchanger 3 and the electric box 7 .

On the other hand, the lower rear plate 19 is formed to have an arcuate cross section so that the lower end faces forward, and one end has a fan motor 1.
A motor mount 20 for mounting the fan 4 and a bracket 22 for supporting the free end of the fan 4 via a bearing 21 are integrally formed at the other end. That is, these motor mounting base 20 and bracket 22 constitute a mounting portion 23 of the fan 4.

Further, a fan casing 24 is attached between the lower rear plate 19 and the fan 4.

The upper and lower rear plates 13 and 19 are assembled as shown in FIG. Become.

When assembling the indoor unit 11 configured as described above, first move the heat exchanger 3 from the front parallel to the upper rear plate 13 and assemble it, and then attach the electric box 7 to the heat exchanger 3. , the protrusion 1 formed on the electrical box 7 and the rear plate 13
8 and grasp the vertical pipe portion 17 of the auxiliary pipe 8. In this way, the protrusion 18 formed on the rear plate 13
Since the auxiliary piping 8 can be fixed by the electric box 7 and the electric box 7, there is no need for fixing parts such as supporting metal fittings or screws, and the auxiliary piping 8 can be fixed without turning the set over.

Further, since the drain pan 14 is integrally formed on the rear plate 2, the number of parts is reduced, and assembly is less labor-intensive.

Next, the fan casing 24, the fan 4, and the fan motor 10 are assembled to the lower rear plate 19, and then the lower rear plate 19 is assembled to the upper rear plate 13. At this time, the auxiliary pipe 8 may be positioned at the rear of the lower rear plate 19. Therefore, unlike the conventional structure in which it is necessary to pass the auxiliary piping 8 through the hole in the rear plate, there is no need to pass the auxiliary piping 8 through the hole when assembling the heat exchanger 3, so assembly is easy, and as described above, Since the heat exchanger 3 can be assembled by parallel movement, the assembly can be automated using a robot.

Finally, by assembling the front panel 1 to the rear plates 13 and 19, the assembly of the indoor unit 11 is completed.

In this way, the fan 4 and fan motor 10 can be removed together with the lower rear plate 19 from the completed indoor unit 11, so the fan 4 and fan motor 10 can be removed without removing the heat exchanger.
can be inspected and replaced.

[Effects of the Invention] In summary, the present invention exhibits the following excellent effects.

(1) The rear plate is divided into two parts, top and bottom, so after assembling the heat exchanger to the upper rear plate, the auxiliary piping can be led out to the rear of the rear plate, making it easier to assemble the heat exchanger. Since there is no need to insert the auxiliary piping into the hole, the heat exchanger can be assembled very easily, and the assembly can be automated.

(2) Furthermore, since the drain pan is integrally formed on the upper rear plate, the number of parts is reduced and assembly is further facilitated.

(3) Since the fan mounting portion is formed on the lower rear plate, the fan and fan motor can be removed together with the lower rear plate, making it easy to inspect and replace them.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of an indoor unit showing one embodiment of the present invention, Fig. 2 is a partially enlarged perspective view of the same, Fig. 3 is a schematic partial sectional view showing an assembled state, and Fig. 4 is an indoor unit. FIG. 2 is an exploded perspective view showing the conventional structure of the unit. In the figure, 1 is a front panel, 3 is a heat exchanger, 13 is an upper rear plate, 14 is a drain pan, 19 is a lower rear plate, and 23 is a fan attachment part.

Claims (1)

[Claims] 1. In an indoor unit of an air conditioner that houses a heat exchanger, fan, etc. between a front panel and a rear plate, the rear plate is divided into two halves, and the heat exchanger is installed on the upper rear plate of the divided upper part. An indoor unit for an air conditioner, characterized in that a drain pan for receiving drain is integrally formed therein, and a fan attachment part is formed on a lower rear plate.