JP3767938B2 - Air conditioner outdoor unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an outdoor unit of an air conditioner incorporating service valves for gas pipes and liquid pipes.
[0002]
[Prior art]
Generally, in a separation type air conditioner, an indoor heat exchanger of an indoor unit and an outdoor heat exchanger of an outdoor unit are connected by a refrigerant pipe to circulate the refrigerant. Such an outdoor unit incorporates a service valve to which a refrigerant gas pipe is connected and a service valve to which a refrigerant liquid pipe is connected.
[0003]
FIG. 7 shows a service valve 201 for connecting a gas pipe and a service valve 202 for connecting a liquid pipe incorporated in a conventional outdoor unit 200. The service valve 201 is thicker than the service valve 202, and both service valves 201 and 202 are fixed side by side on the support plate 203. The support plate 203 is attached between the partition plate 204 and the side plate 205 on the rear side of the outdoor unit 200.
[0004]
[Problems to be solved by the invention]
However, in the conventional configuration, since the support plate 203 is horizontally attached between the partition plate 204 and the side plate 205, for example, when checking or replacing the compressor 206 or the like in the outdoor unit 200, the work is obstructed. There is a problem of becoming.
[0005]
The present invention solves the above-described problems and provides an air conditioner that can easily inspect and replace elements in an outdoor unit even if a service valve to which a gas pipe is connected and a service valve to which a liquid pipe is connected are provided. Provide outdoor units.
[0006]
[Means for Solving the Problems]
According to the first aspect of the present invention, in the outdoor unit of an air conditioner incorporating service valves for gas pipes and liquid pipes, the base portion of the support plate that supports each service valve is cantilevered on the side plate of the outdoor unit. The service valve for the gas pipe is arranged at the base of the support plate, the service valve for the liquid pipe is arranged at the free end of the support plate, and the screw outer diameter of the service port of the service valve for the gas pipe is The service valve is formed smaller than the outer diameter of the body part.
[0009]
According to the first aspect of the present invention, the tool can be fitted to the service valve body from the service port side of the service valve of the gas pipe. Therefore, the service valve screw is held with the service valve body held by the tool. Can be easily loosened or tightened.
[0010]
According to the second aspect of the present invention, in an outdoor unit of an air conditioner that incorporates service valves for gas pipes and liquid pipes, the base portion of the support plate that supports each service valve is cantilevered on the side plate of the outdoor unit. The gas pipe service valve is disposed at the base of the support plate, the liquid pipe service valve is disposed at the free end of the support plate, and the service valve screw is disposed at the free end of the support plate. A bent portion for hooking a tool when the tool is loosened or tightened is formed.
[0011]
According to the second aspect of the present invention, it is possible to easily loosen or tighten the service valve screw while holding the bent portion with a tool.
[0012]
According to a third aspect of the present invention, in the outdoor unit of an air conditioner that incorporates service valves for gas pipes and liquid pipes, the base portion of the support plate that supports each service valve is cantilevered on the side plate of the outdoor unit. The gas pipe service valve is arranged at the base of the support plate, the liquid pipe service valve is arranged at the free end of the support plate, and the gas pipe service valve has a pair of fixing holes. One of the fixing holes is fitted with a pin extending from the support plate, and the other fixing hole is passed with a screw for fixing the service valve.
[0013]
In the third aspect of the present invention, since the service valve is fixed with a single screw, the service valve can be easily fixed, and even if a moment is applied to the service valve, the pin supports it, so that the service valve rotates. There is no.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described with reference to the drawings.
[0015]
In FIG. 1, the separation-type air conditioner includes an indoor unit (not shown) and an outdoor unit 5, and performs a cooling operation and a heating operation by flowing a refrigerant through a refrigerant circuit connected by a refrigerant pipe. It is like that. The outdoor unit 5 is disposed outside, exchanges heat with outdoor air, condenses the refrigerant during the cooling operation and releases heat to the outside air, evaporates the refrigerant during the heating operation, and takes in heat from the outside air.
[0016]
As shown in FIG. 1 and FIG. 2, the outdoor unit 5 houses the refrigeration equipment of the refrigerant circuit in the main body 3. That is, a substantially L-shaped heat exchanger 9 as viewed from above is disposed in the main body 3, and a propeller fan 11 that blows outdoor air to the heat exchanger 9, a fan motor 13, and a support plate to which the fan motor is attached. 15a and 15b are accommodated. The panel 16 is provided with a fan guard 17. Referring to FIG. 2, on the right side of FIG. 2, a compressor 19 that forms a refrigerant circuit, an accumulator 21, a strainer 23, a heater 25 that heats the compressor 19, and the like are provided.
[0017]
Various electrical components 27 are provided in the upper part of the outdoor unit 5 in FIG. 2, and the various electrical components 27 and the heat exchanger 9 are partitioned by a partition plate 29. The main body 3 includes a bottom plate 31, an outer plate 34, a side plate 53, a top plate 35, and a panel 16. As the propeller fan 11 rotates, outside air is blown to the heat exchanger 9 to exchange heat. As shown in FIG. 3, the bottom plate 31 is detachably provided with a shielding plate 50 at the rear side of the outdoor unit. The shielding plate 50 has notches 51a and 51b for leading out the refrigerant pipe and the like.
[0018]
According to this embodiment, the support plate 56 is cantilevered at a substantially intermediate position of the side plate 53 of the main body 3. That is, the support plate 56 has a base portion 56b (see FIG. 3), and the base portion 56b is fixed to a substantially intermediate position of the side plate 53 using screws 56a. A bent portion 59 is provided at the free end portion 56 c of the support plate 56, and the bent portion 59 projects horizontally behind the main body 3.
[0019]
The support plate 56 fixes the gas pipe service valve 57 and the liquid pipe service valve 58, and the gas pipe service valve 57 and the liquid pipe service valve 58 are incorporated in the main body 3.
[0020]
The gas pipe service valve 57 is connected to a gas pipe L1 led from an indoor unit (not shown), and the liquid pipe service valve 58 is connected to a liquid pipe L2 also led from an indoor unit (not shown). To do. Since the gas pipe service valve 57 is larger and larger in diameter than the liquid pipe service valve 58, the gas pipe service valve 57 is fixed to the base 56b side having high rigidity, and the free end part 56c side having relatively weak rigidity. A liquid pipe service valve 58 is fixed to the pipe.
[0021]
By distributing and fixing in this way, even when the support plate 56 is cantilevered, the support strength of the service valve 57 and the service valve 58 can be increased. In addition, with reference to FIG. 3, the compressor 19 is arrange | positioned behind the support plate 56 mentioned above. Further, the screw outer diameter D1 of the service port 61 of the service valve 57 for the gas pipe is formed smaller than the outer diameter D2 of the body portion 60 of the service valve 57.
[0022]
Next, a procedure for tightening / loosening the nut 63 of the gas pipe service valve 57 and the nut 65 of the liquid pipe service valve 58 will be described.
[0023]
First, as shown in FIG. 4, when tightening or loosening the nut 63 of the service valve 57 of the gas pipe, a tool (wrench) K1 is fitted in the X direction to fix the body 60 of the service valve 57. Then, another tool (wrench) K2 is applied to the nut 63 and rotated around the central axis CL in the Y direction to tighten, loosen, or remove the nut 63. At this time, the screw outer diameter D1 of the service port 61 of the service valve 57 of the gas pipe is formed to be smaller than the outer diameter D2 of the trunk portion 60 of the service valve 57, so this tool (wrench) K1 is used as the service valve. 57 body portions 60 can be reached.
[0024]
Next, when the nut 65 of the service valve 58 of the liquid pipe is tightened or loosened, the tool K1 is fitted in the R direction into the bent portion 59 of the free end portion 56c of the support plate 56 as shown in FIG. Then, the bent portion 59 is fixed with the tool K1, and the tool K2 is applied to the nut 65. Then, the tool K2 is rotated in the Z direction, and the nut 65 is tightened or loosened with the tool K2.
[0025]
In short, according to this embodiment, although the support plate 56 is cantilevered and the rigidity of the support plate 56 is lowered, the device has been devised as described above. The tightening and loosening operations of the pipe service valve 57 and the liquid pipe service valve 58 can be easily performed as in the prior art. According to this embodiment, since the support plate 56 is cantilevered and attached to the side plate 53, a space is formed between the bent portion 59 of the free end portion 56 and the partition plate 29. Inspection and replacement of each element inside the machine 5 becomes easy.
[0026]
As shown in FIG. 6, the service valve 57 for the gas pipe has fixing mounting plates 100 and 100. One mounting plate 100 is provided with a fixing hole 100a, and a protrusion 120 provided on the support plate 56 is fitted into the fixing hole 100a. The other mounting plate 100 is provided with a fixing hole 100 b, and a screw 130 is passed through the fixing hole 100 b, and the service valve 57 for the gas pipe is fixed to the support plate 53 through the screw 130. . According to this, the service valve 57 for the gas pipe is simply fixed to the support plate 56, and even if a certain impact is applied to the service valve 57 and a moment is generated, the service valve 57 is mounted on the support plate 56. The effect that it does not rotate is obtained.
[0027]
【The invention's effect】
In the first aspect of the present invention, since the tool can be fitted into the body through the service port of the service valve of the gas pipe, the support plate can be deformed even if a thick service valve that requires excessive tightening operation force is operated. There is no.
[0029]
In the second aspect of the present invention, since the support plate can be supported simply by holding the bent portion with a tool, the service valve can be easily loosened or easily tightened.
[0030]
In the third aspect of the present invention, the service valve can be easily fixed, and even if a moment is applied when operating the service valve, the service valve is supported by the pin, so the service valve does not rotate.
[Brief description of the drawings]
FIG. 1 is a front view showing an outdoor unit of an air conditioner according to the present invention.
FIG. 2 is a perspective view showing an example of the internal structure of the outdoor unit of the air conditioner of the present invention.
FIG. 3 is a perspective view showing a support plate, a service valve for a gas pipe, and a service valve for a liquid pipe arranged inside the rear side of the outdoor unit.
FIG. 4 is a perspective view showing an operation example of a service valve for a gas pipe.
FIG. 5 is a perspective view showing an operation example of a service valve for a liquid pipe.
FIG. 6 is a front view showing an example of attaching a service valve for a gas pipe to a support plate.
FIG. 7 is a view showing a support plate, a gas pipe service valve, and a liquid pipe service valve arranged inside the rear side of a conventional outdoor unit.
[Explanation of symbols]
5 Outdoor unit 53 Side plate 56 of outdoor unit Support plate 56c Free end portion 57 of support plate Service valve 58 for gas pipe Service valve 59 for liquid pipe Folding part 61 Service port 120 of service valve for gas pipe For fixing pin 130 of support plate Screw

Claims (3)

In an outdoor unit of an air conditioner that incorporates service valves for gas pipes and liquid pipes, the base of a support plate that supports each service valve is cantilevered on the side plate of the outdoor unit, and the base of the support plate The service valve for the gas pipe is arranged, the service valve for the liquid pipe is arranged at the free end of the support plate, and the screw outer diameter of the service port of the service pipe for gas pipe is smaller than the outer diameter of the trunk of the service valve. An air conditioner outdoor unit characterized in that it is made smaller. In an outdoor unit of an air conditioner that incorporates service valves for gas pipes and liquid pipes, the base of a support plate that supports each service valve is cantilevered on the side plate of the outdoor unit, and the base of the support plate The service valve for the gas pipe is arranged, the service valve for the liquid pipe is arranged at the free end of the support plate, and the tool is caught at the free end of the support plate when the service valve is loosened or tightened. An air conditioner outdoor unit characterized in that a bent portion is formed. In an outdoor unit of an air conditioner that incorporates service valves for gas pipes and liquid pipes, the base of a support plate that supports each service valve is cantilevered on the side plate of the outdoor unit, and the base of the support plate A service valve for the gas pipe is arranged, the service valve for the liquid pipe is arranged at the free end of the support plate, and is supported by one of the fixing holes of the service valve for the gas pipe. An outdoor unit of an air conditioner, wherein a pin extending from a plate is fitted, and a screw for fixing a service valve is passed through the other fixing hole.

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