JPH01291030A - Outdoor machine for air conditioner - Google Patents

Abstract

PURPOSE:To enable refrigerant circuit parts other than an outdoor heat exchanger to be drawn out by drawing a sliding plate, by a method wherein a compressor, an accumulator and stop valves are fixed on said sliding plate secured on the base of a main body with a screw. CONSTITUTION:On a sliding plate 32 held by a hooking part 36 provided on a base 34, an accumulator 23 is mounted with the aid of a fixing tool 37, a compressor 21 is mounted with the aid of vibration-proof rubber and further, stop valves 24 and 25 are mounted with the aid of a fixing tool 38. Service for replacing a refrigerant circuit part such as the compressor 21 may be performed by removing a screw for fixing the sliding plate on the front side, disconnecting pipe connections at the inlet and outlet parts of a heat exchanger, removing the extension pipes of the stop valve parts, and then drawing the sliding plate forward, whereby all of the refrigerant circuit parts such as the compressor other than the outdoor heat exchanger can be drawn out.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a structure for facilitating brazing work in a refrigerant circuit component replacement service in an air conditioner, mainly a wall-embedded type. .

[Conventional technology]

FIG. 5 is an internal configuration diagram showing a conventional outdoor unit disclosed in, for example, Japanese Utility Model Application No. 61-174884.

In the figure, (1) is the unit outer box, (2) is the unit base, (3) is the blower, (4) is the heat exchanger, and (5) is the blower (3) and heat exchanger (4). The blower room (6) is the compressor, (7) is the compressor and refrigerant circuit, '# is the machine g that stores the elegance, (81 is the blower room (5: and the machine g (71t) is the partition plate that partitions .

(9) is an accumulator attached to the partition plate (8) in the machine room, QG is an opening provided in the partition plate (8), and aD is a cover that closes the opening.

Other refrigerant circuit parts (not shown) are also housed in the machine room, and in particular, a stop valve (not shown) for connection to the indoor unit via an extension pipe is attached to the rear of the compressor, that is, to the side of the main body.

For example, in the case of compressor (6) replacement service, remove the braze from the compressor's inlet and outlet vibrators using the /I welding machine.

Remove the cover aD and take out the compressor through the opening α of the partition plate (8). This is because the refrigerant circuit components are placed on the front side of the compressor, so the compressor can be removed by passing through the partition plate. For accumulator replacement service, remove the brazing from the inlet and outlet vibrators of the accumulator using a bath welding machine. Other refrigerant circuit parts are also serviced by removing the brazing using a soldering machine, so the panels must be removed to avoid burning out the panels with the torch flame. In addition, in order to facilitate the removal work, the product requires a large amount of space so that the torch can be inserted.

[Problem to be solved by the invention]

Conventional outdoor units are constructed as described above, so when servicing the replacement of refrigerant circuit parts, panels etc. must be disassembled to prevent the flame of the welder's torch from affecting the main unit. In other words, it was necessary to secure a large internal space to facilitate welding, which caused the problem that the 2 main body became large. Furthermore, as shown in Figure 2, in wall-mounted outdoor units, it is impossible to disassemble the panel within the wall, and the heavy product body must be removed and replaced at another location. There were some problems.

This invention was made to solve the above-mentioned problems, and it is a refrigerant that does not lose its connection even when installed in a place with limited work space, such as a four-wall recessed outdoor unit. The aim is to provide a compact and thin device that allows for easy replacement of circuit parts.

[Means to solve the problem]

In the unexpected machine according to the present invention, a slide plate is screwed onto the base of two main bodies, a compressor, an accumulator, a stop valve are fixed on this plate, and refrigerant circuit parts such as a four-way valve, two capillary tubes, and a 77 roller are connected to the refrigerant piping. It is connected by a split joint at the entrance and exit of the outdoor heat exchanger.

[Effect]

This invention is applicable to the replacement service of refrigerant circuit parts.

By removing the fixing screw of the slide plate, removing the joint at the inlet/outlet portion of the outdoor heat exchanger, and removing the extension pipe of the stop valve portion, the refrigerant circuit components can be pulled out from the front side together with the slide plate.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, Qυ is a compressor and @ is a four-way valve.

The mouth is an accumulator, c141. ＠ is a stop valve to connect to the guide side with an extension pipe, ＠ Kosoku p device, c171 is an outdoor heat exchanger, (to) is a solenoid valve, 4 is a pressure switch, and these refrigerant circuit parts are connected with refrigerant piping. It forms a general refrigerant circuit. Between the four-way valve (2) and the outdoor heat exchanger @, between the throttling device (to) and the outdoor heat exchanger fin,
That is, a welded joint or a threaded joint (2) is provided at the entrance and exit of the outdoor heat exchanger.

Next, in Figures 2 and 3, (to) is the base of the outdoor unit, rMI
is the pedestal attached to the pace (to), the (to) is tightened to the pedestal (2) with screw fields, and the rear side is the slide plate that is inserted into the hook provided on the pedestal (to). This slide board (
(to), the accumulator is attached via a fixture gn, the compressor clυ is attached via a vibration isolating rubber, and the stop valves h and cs are attached via a fixture @. The refrigerant circuit parts of the four-way valve, such as the throttling device (toward), are connected to a fixed compressor, axine mulrator, and stop valve, and are connected to the piping. The stop valve @, 4 is located at the front of the compressor and makes the pulp operation section face forward.

As shown in Fig. 4, this outdoor unit is installed in the wall al under the window az of the building and is covered with a fireproof board (Ie).A service panel is provided on the right front side of the outdoor unit Q41. An extension pipe 071as connecting the indoor unit and the outdoor unit is connected to the stop valve C:a, c1!J.

Next, to explain the function, during installation work, stop valve @
, @ is on the back side of the service panel, that is, on the front side, so is the extension piping fi? ! , +II easily stop valve 0
41, 21, and for replacement service of refrigerant circuit parts such as compressors, remove the slide plate fixing screw on the front side, remove the heat exchanger inlet and outlet piping connections (3fm, 011, and extend the stop valve part. By removing the vibrator and pulling the slide plate toward you, you can pull out all the refrigerant circuit components such as the compressor, other than the outdoor heat exchanger, and the components within the dashed-dotted line in Figure 1.

Refrigerant circuit parts are generally connected with braze, so parts are replaced by melting the bolts in a place where it is easy to work on the whole block of the refrigerant circuit.

〔Effect of the invention〕

As described above, according to the present invention, refrigerant circuit components other than the external heat exchanger can be pulled out by providing a slide plate, mounting the stop valve, pressure machine, and accumulator on it, and pulling the slide &. I configured it like this,
Parts replacement service for parts that cannot be accessed by a connecting torch can be carried out easily, and the product body can be made more compact.1 An unexpected machine with good workability can be obtained, and an outdoor unit built into the wall can also be achieved.

[Brief explanation of the drawing]

FIG. 1 is a refrigerant circuit diagram according to an embodiment of the present invention. Fig. 2 is a front internal structural view showing an outdoor unit according to an embodiment of the present invention, Fig. 3 is a right side internal structural view of Fig. 2, and Fig. 4 is a perspective view showing the installed state of the outdoor unit of the present invention. , FIG. 5 is a perspective view showing a conventional outdoor unit. In the figure, circle is a compressor, @ is a four-way valve, ■ is an outdoor heat exchanger, @ is a throttling device, and W is an accumulator. @, (c) is the stop valve, (to) is the slide plate, and yu is the screw.

Claims (1)

[Claims] In the outdoor unit of a separate type air conditioner in which the indoor unit and outdoor unit are connected by extension piping, a sliding plate is placed on the base, and the compressor, four-way valve, throttle device, accumulator, and stop valve are mounted on the sliding plate. An outdoor unit of an air conditioner characterized in that refrigerant circuit components other than an outdoor heat exchanger such as the above are fixedly arranged.