JPH0544654Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

This invention relates to an outdoor unit of an air conditioner in which the indoor unit and the outdoor unit are separated.

[Conventional technology]

FIG. 8 shows a conventional outdoor unit of an air conditioner disclosed in, for example, Japanese Unexamined Patent Publication No. 101777/1983. This outdoor unit 1 is installed in a state where the refrigerant pipe connection parts 4, 4 extending downward from the heat exchange part 6 formed in the upper part of the case 2 can be connected from the front of the outdoor unit 1. The refrigerant pipes 3, 3 are connected in a substantially U-shape to a portion of the base 8 that faces the connection chamber 7 and corresponds to the extension line of the connection parts 4, 4, which are arranged facing downward in the pipe connection chamber 7 formed at the bottom. A notch 9 is formed for this purpose. Note that FIG. 8 shows a state in which the service panel covering the open front surface of the piping connection chamber 7 at the bottom of the casing 2 is removed. Moreover, in FIG. 8, 10 is a band for fixing wiring. In the outdoor unit configured as described above, the refrigerant pipes 3, 3 are connected to the connecting portions 4, 4 in a downwardly extending state, so that the refrigerant pipes 3, 3 can be freely connected below the base 8 of the housing 2. It can be routed in the direction of In this case, the refrigerant pipes 3, 3 are necessarily bent from the vertical direction to the horizontal direction. FIG. 9 shows a state in which the outdoor unit 1 is installed, and the refrigerant pipes 3, 3 are piped downward and bent backward,
Since a bending radius is required, the outdoor unit 1 is placed on the stand 11.
By placing the refrigerant pipes 3, 3, bending space is secured.

[Problem that the invention attempts to solve]

The outdoor unit of a conventional air conditioner is configured as described above, so if you want to route the refrigerant piping to the rear, you need to assemble a pedestal, place the outdoor unit on this pedestal, and route the refrigerant piping below the outdoor unit. It is necessary to secure bending space. In other words, bending of refrigerant piping is done by using a bender or by hand bending with a large radius, but it is difficult to do it inside the equipment, so it is done in a large space, and the bending process is done by bending it by hand with a large radius. Therefore, there was a problem in that a large space had to be provided below the housing in order to incorporate the refrigerant piping. This idea was made to solve the problems mentioned above, and allows valve operation and refrigerant piping connections to be made from the front of the housing, as well as allowing the housing to be placed on a pedestal or the like and to provide space for piping underneath. The purpose of the present invention is to obtain an outdoor unit of an air conditioner in which refrigerant piping can be routed rearward without the need for providing a refrigerant pipe.

[Means to solve the problem]

The outdoor unit of the air conditioner according to this invention has a flat L-shaped service panel at the front of the machine room located on one side of the heat exchange chamber of the housing, and is flush with the front of the housing inside the service panel. A pipe connection part having a valve with an operating part facing forward is disposed downward at the corner with the side surface, and a notch for penetrating the refrigerant pipe facing the pipe connection part is formed in the base of the casing, A bent end is formed at the rear of the notch in the base, and a space is provided below the bent end on the inside of the side panel of the housing. A notch is formed for penetrating the refrigerant pipe, facing the above-mentioned space.

[Effect]

In this invention, a piping connection section having a valve is provided at the corner of the front surface and one side surface of the case in a machine room arranged on one side of the heat exchange chamber in the case, and an operation section for the valve is provided. The valve faces forward, making it easy to operate the valve.Also, a notch is provided in the base of the housing that faces the piping connection, and a bent end portion located high is formed at the rear of the notch. Since the rear panel of the casing has a notch facing the refrigerant piping space provided below the bent end, when the refrigerant piping connected to the piping connection section is routed to the rear, the base of the casing By running the piping through the notch, the above-mentioned space below the bent end, and the notch in the rear panel, even if the bending radius of the refrigerant piping is large, it can be routed from inside the casing to the wall of the building without using a frame. The installation work of the outdoor unit during the above-mentioned rear piping in which the refrigerant piping is taken out is good, the refrigerant piping can be easily routed to the rear, and the piping work can be performed with a good appearance.

【Example】

An embodiment of this invention is shown below in Figures 1 to 4.
The diagram will be explained. As shown in FIG. 1, the outdoor unit 1 of this embodiment
A heat exchange chamber with an air outlet 13 is provided on the front panel 12 of a nearly box-shaped housing 2, and a flat L-shaped service panel 14 is provided at the front on one side of the heat exchange chamber. A removably installed machine room is provided, and cutouts for piping outlets 15 are formed at the lower ends of the front and side corners of the service panel 14. As shown in FIG. 2, in the heat exchange chamber 16, a blower 17 is disposed facing the rear of the air outlet 13, and a heat exchanger 18 extends from the rear of the blower 17 to the side opposite to the machine room 19. is installed to form an air passage inside. As shown in FIGS. 2 and 3, the machine room 19 has a housing 2 on one side of the heat exchange room 16.
The machine room 1 is formed by partitioning the inside with a partition plate 20.
9 includes a compressor 21, an accumulator 22,
Electrical items and refrigerant circuit parts are stored here. Also,
Refrigerant pipe connection parts 4, 4 having valves 4a, 4a are provided at the corners of the front and one side of the housing 2 inside the service panel 14, and the operating parts of the valves 4a, 4a are arranged facing forward, The above connection parts 4, 4
is placed facing downward. These connections 4,
A notch 9 for penetrating the refrigerant pipes 3 and 3 is formed in the front part of one side of the base 8 of the housing 2 facing the base 4;
At the rear portion of the base 8 corresponding to the notch 9, a bent end portion 23 is formed with approximately the same width as the notch 9 and is disposed higher than other portions via a step 23a. A side panel 25 and a rear panel 26 of the housing 2 are fixed to 24. A space 27 for refrigerant piping is formed in a vertical U-shape inside the side panel 25 below the bent end 23 of the base 8, and a refrigerant piping 3, 3. A notch 28 for passing through is formed. The connection part 4,
4, the refrigerant pipes 3, 3 connected to the notch 2
8, passes through the space 27, is bent upward at the notch 9 of the base 8, and is connected to the connecting parts 4, 4. As shown in FIG. 4, in the outdoor unit 1 of this embodiment, the bent end 22 of the base 8 is placed high up to the bottom of the compressor 21, and the refrigerant pipes 3, 3 are placed at the position of the notch 9 of the base 8. It is bent with a large bending radius R31, and the refrigerant pipes 3, 3 are connected from the rear panel 26 to the housing 2.
It is housed in this housing 2 until it goes outside. In addition, in FIG. 1, FIG. 3, and FIG. 4, 29 is an installation leg. In general, outdoor units are installed near the wall of a building, and the rear of the outdoor unit faces the wall so that the refrigerant piping is not visible from the outside and the appearance of the refrigerant piping is better. In order to do this, in this embodiment, the refrigerant pipe is brought out from the rear surface of the housing. In addition, in order to connect the refrigerant piping in the outdoor unit of this example, after bending the refrigerant piping in a free space outside the outdoor unit, pass it through the gap between the bottom surface of the side panel and the ground surface of the casing, and then The refrigerant pipes 3, 3 can be installed by passing under the panel 25. In practice, a block or foundation is generally provided at the installation leg 29 of the outdoor unit 1, so the above-mentioned gap is high enough to allow the refrigerant pipe to pass through. In this invention, in the above embodiment, the lower end of the side panel 25 is located at a lower position than the lower surface of the bent end 23 of the base 8, and the side panel 25 and the bent end 23
3 and the step 23a of the base 8. As shown in FIG. The same effect as shown in FIGS. 1 to 4 can be obtained even if the lower surface of the end portion following the cutout portion 28 is aligned with the lower surface of the end portion at approximately the same height. In the case shown in FIG. 5, the workability when assembling the refrigerant pipes 3, 3 which are bent outside the casing 2 is improved compared to those shown in FIGS. 1 to 4. Furthermore, as shown in FIG. 6, this invention can improve the appearance by covering the lower ends of the service panel 14 and side panel 25 with a closing plate 30. The above has been explained assuming that the piping is installed after the installation, but depending on the situation at the installation site, other piping outlets may be required. A piping outlet 15 is provided at the lower end of the corner of the front and side surfaces of the base 8 , and a blocking plate 30 having a planar L-shape larger than the outlet 15 is placed inside the service panel 19 . is removably fixed with screws,
If necessary, a pipe through hole 32 may be provided in the front or side surface of the closing plate 30, and the refrigerant pipes 3, 3 may be passed through one of the pipe through holes 32 for front piping and side piping. Incidentally, instead of providing the piping through hole in the closing plate, a downward U-shaped notch may be provided for knocking out. When installing refrigerant piping, the piping and these through holes are generally fixed with caulk to cover them, but by using a closing plate, the service panel is fixed by the piping and caulking, and the service panel can be easily fixed during inspection. This solves the problem of not being able to remove it. In addition, by placing the piping connection section on the front side, it is easier to operate the piping connection section during installation and service. Furthermore, even in the case shown in FIG. 6, front piping and side piping can be performed in the same manner as in the case of FIG. 7 described above.

[Effect of the idea]

As explained above, according to this invention, a planar L-shaped service panel is provided at the front of the machine room formed on one side of the heat exchange chamber of the housing, and the service panel is aligned with the front of the housing inside the service panel. A piping connection part having a valve with an operating part facing forward is arranged downward at the corner with the side surface, and a notch facing the piping connection part is formed in the base of the casing, and a notch in the base A bent end portion arranged high through a step is formed in the rear portion, a space for refrigerant piping is provided below the bent end inside the side panel of the casing, and a space is provided opposite to the space at the lower end of the rear panel of the casing. Since a notch is formed for the refrigerant piping to pass through, it is possible to perform piping after passing the refrigerant piping inside the casing, eliminating the need for a pedestal like in conventional systems, and improving installation workability during piping. This has the effect of creating piping that looks good, and making it easier to operate valves and connect refrigerant piping from the front of the casing.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an outdoor unit of an air conditioner according to an embodiment of this invention, Fig. 2 is a horizontal sectional view of Fig. 1, and Fig. 3 is a view of Fig. 1 with the service panel removed. 4 is a side view for explaining the installation state of the outdoor unit shown in FIG. 1, and FIGS. 5 to 7 show outdoor units according to different embodiments of this invention. The figure is a perspective view with the service panel removed, Figure 6 is an overall perspective view, Figure 7 is an exploded perspective view, Figure 8 is a perspective view of a conventional outdoor unit with the service panel removed, and Figure 9. 8 is a side view for explaining the installation state of the outdoor unit of FIG. 8. FIG. 1... Outdoor unit, 2... Housing, 3... Refrigerant piping,
4...Piping connection part, 4a...Valve, 8...Base, 9...Notch, 12...Front panel, 13...
...Air outlet, 14...Service panel, 15...
...Piping outlet, 16...Heat exchange room, 17...Blower, 18...Heat exchanger, 19...Machine room, 20...
... Partition plate, 21 ... Compressor, 22 ... Accumulator, 23 ... Bent end, 23a ... Stage, 24
... Flange, 25 ... Side panel, 26 ... Rear panel, 27 ... Space for refrigerant piping, 28 ...
...Notch portion, 29... Installation leg, 30... Closing plate.
Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A heat exchange chamber in which an air passage is formed by providing an air blower and a heat exchanger behind an air outlet provided at the front of the casing, and the above-mentioned heat exchange chamber inside the casing. A machine room is provided on one side and houses the compressor, electrical equipment, and refrigerant circuit parts.A service panel with a planar L-shape is provided at the front of this machine room, and the front of the case inside the service panel is provided. A piping connection part having a valve with an operating part facing forward is disposed downward at the corner of the housing and one side, and a cutout for passing through the refrigerant pipe facing the piping connection part is formed in the base of the casing. At the same time, a bent end portion placed high through a step is formed in the rear part of the notch of the base, a space for refrigerant piping is provided below the bent end inside the side panel of the casing, and a space is provided for the refrigerant piping at the lower end of the rear panel of the casing. 1. An outdoor unit for an air conditioner, characterized in that a cutout portion for passing a refrigerant pipe that faces the above-mentioned space is formed in a portion of the outdoor unit. (2) The casing has a lower end of the side panel and a lower end at a position corresponding to the bent end provided on the base of the rear panel at a height that almost matches the lower surface of the bent end. The outdoor unit of the air conditioner according to item 1. (3) The service panel has refrigerant outlets formed at the lower ends of the front and side corners, and the base has an L-shaped closing plate that closes the above notch from the inside of the service panel and is removably fixed with screws. An outdoor unit of an air conditioner according to claim 1 of a certain utility model registration claim.