JPWO2020053951A1 - Outdoor unit of air conditioner - Google Patents

Abstract

An outdoor unit of an air conditioner connected to an indoor unit by a refrigerant pipe, which is a housing having an insertion hole for passing the refrigerant pipe on the back panel and a valve arranged inside the housing for insertion. It is provided with a valve connected to the end of the refrigerant pipe that penetrates the hole. A mark indicating the position of the valve is provided on the outer surface of the rear panel at a position facing the valve.

Description

The present invention relates to an outdoor unit of an air conditioner connected to an indoor unit by a refrigerant pipe.

The air conditioner is configured by connecting the outdoor unit and the indoor unit with a refrigerant pipe. In Patent Document 1, a connection port is provided on the side surface of the housing of the outdoor unit so as to project outward, and a refrigerant pipe extending from the indoor unit is connected to the connection port. In Patent Document 1, when connecting the refrigerant pipe to the connection port at the installation site of the outdoor unit, the refrigerant pipe hanging from the upper part from the indoor unit toward the housing of the outdoor unit is directed to the connection port on the way. After bending diagonally, the end of the refrigerant pipe is cut according to the length from the bent position to the connection port, and the cut end is connected to the connection port. Then, in Patent Document 1, a piping work diagram and a length are provided on the side surface of the housing so that the bending angle of the bent portion and the distance from the bent portion to the cutting position can be easily determined by the operator at the installation site. A name plate with a standard gauge is attached.

Japanese Unexamined Patent Publication No. 07-063374

In Patent Document 1, since the connection port is provided so as to project outward from the side surface of the housing of the outdoor unit, the operator can check the position of the connection port from the outside and install the refrigerant pipe while looking at the name plate. You can work to connect. That is, the operator can perform the work while confirming the position of the connection port from the position where he / she is.

However, if the connection destination of the refrigerant pipe is inside the housing of the outdoor unit and the position of the connection destination cannot be confirmed from the position of the operator, the connection work becomes difficult. Specifically, when the connection destination of the refrigerant pipe is a valve inside the housing of the outdoor unit and the working position of the worker is the back side of the back panel of the housing, the position of the valve is from the position of the worker. Cannot be confirmed. For this reason, the operator needs to move back and forth between the back side of the outdoor unit and the front side where the front panel can be removed to check the position of the valve, and perform the work while checking the position of the valve. There was a problem of poor work efficiency.

The present invention has been made in view of such a point, and an object of the present invention is to provide an outdoor unit of an air conditioner capable of improving the work efficiency of the work of connecting a refrigerant pipe to an outdoor unit.

The outdoor unit of the air conditioner according to the present invention is an outdoor unit of the air conditioner connected to the indoor unit by a refrigerant pipe, and has a housing having an insertion hole for passing the refrigerant pipe on the back panel and a housing. A valve that is placed inside the valve and is connected to the end of the refrigerant pipe that penetrates the insertion hole, and has a mark indicating the position of the valve on the outer surface of the rear panel at a position facing the valve. It is provided.

According to the present invention, the position of the valve located inside the housing can be confirmed from the outside of the back panel by the mark provided on the outer surface of the back panel constituting the housing, so that the refrigerant pipe is connected to the outdoor unit. The work efficiency of the work can be improved.

It is a block diagram which shows an example of the air conditioner which concerns on Embodiment 1 of this invention. It is a perspective view which shows an example of the outdoor unit of the air conditioner which concerns on Embodiment 1 of this invention. It is a figure which looked at the outdoor unit of the air conditioner which concerns on Embodiment 1 of this invention from the back side. It is a figure which looked at an example of the installation state of the outdoor unit of the air conditioner which concerns on Embodiment 1 of this invention from above. It is explanatory drawing of the connection procedure of the liquid refrigerant pipe to the outdoor unit of the air conditioner which concerns on Embodiment 1 of this invention. FIG. 5 is a partially enlarged view of the outdoor unit of the air conditioner according to the second embodiment of the present invention as viewed from the rear side.

Embodiment 1.
FIG. 1 is a configuration diagram showing an example of an air conditioner according to the first embodiment of the present invention.
The air conditioner includes an outdoor unit A and an indoor unit B. The outdoor unit A and the indoor unit B are connected by a liquid refrigerant pipe 9 through which the liquid refrigerant flows and a gas refrigerant pipe 10 through which the gas refrigerant flows. The outdoor unit A includes a compressor 1, a four-way valve 2, an outdoor heat exchanger 3, an electronic expansion valve 4, a refrigerant container 5, a liquid valve 6, and a gas valve 7. The indoor unit B includes an indoor heat exchanger 8.

FIG. 2 is a perspective view showing an example of an outdoor unit of the air conditioner according to the first embodiment of the present invention. FIG. 2 shows a state in which the sheet metal panel on the right side of the front surface is removed from the plurality of sheet metal panels constituting the housing 11 of the outdoor unit A to expose the inside. FIG. 3 is a view of the outdoor unit of the air conditioner according to the first embodiment of the present invention as viewed from the rear side. In the following, the front side of FIG. 2 will be referred to as the front side, and the back side will be referred to as the back side.

A liquid valve 6 and a gas valve 7 are arranged in the housing 11, and a liquid refrigerant pipe 9 and a gas refrigerant pipe 10 are connected to the liquid valve 6 and the gas valve 7. The liquid refrigerant pipe 9 extends vertically downward from the connection portion with the liquid valve 6, is bent at the first bent portion 15, and extends horizontally toward the back surface side. The liquid refrigerant pipe 9 extending in the horizontal direction is pulled out of the housing 11 through the insertion hole 12 formed in the back panel 11a of the housing 11 and extends toward the indoor unit B. Further, the gas refrigerant pipe 10 extends vertically downward from the connection portion with the gas valve 7, is bent at the first bent portion 15, and extends horizontally toward the back surface side. Then, the gas refrigerant pipe 10 extending in the horizontal direction is pulled out of the housing 11 through the insertion hole 12 like the liquid refrigerant pipe 9, and extends toward the indoor unit B. It is desirable that the insertion hole 12 is formed in the back panel 11a at a position facing the position at a distance downward from the height position of the liquid valve 6 and the gas valve 7.

Then, as shown in FIG. 3, on the outer surface of the back panel 11a, a liquid side mark 13 and a gas side mark 14 are provided at positions facing the liquid valve 6 and the gas valve 7. The liquid side mark 13 and the gas side mark 14 are provided so that the operator on the back side of the back panel 11a can grasp the positions of the liquid valve 6 and the gas valve 7 located on the front side of the back panel 11a. Is. Specifically, the liquid side mark 13 and the gas side mark 14 are formed by providing unevenness on the back panel 11a, and are configured to have the same size.

FIG. 4 is a top view of an example of the installed state of the outdoor unit of the air conditioner according to the first embodiment of the present invention.
FIG. 4 shows an example in which a plurality of outdoor units A are centrally installed along the wall surface W. Each of the liquid refrigerant pipe 9 and the gas refrigerant pipe 10 extends from the back panel 11a of the outdoor unit A toward the wall surface W, and then is bent by the second bending portion 16 along the wall surface W toward the indoor unit B. It is designed to extend. The number of outdoor units A may be one.

In the above configuration, the procedure for connecting the liquid refrigerant pipe 9 and the gas refrigerant pipe 10 to the liquid valve 6 and the gas valve 7 will be described. Since the connection procedure of the liquid refrigerant pipe 9 and the gas refrigerant pipe 10 is the same, the liquid refrigerant pipe 9 will be described below as a representative.

FIG. 5 is an explanatory diagram of a procedure for connecting a liquid refrigerant pipe to the outdoor unit of the air conditioner according to the first embodiment of the present invention.
During the installation work, the operator on the back side of the outdoor unit A first bends the liquid refrigerant pipe 9 in a linearly extended state in the direction of arrow A as shown by the dotted line in FIG. The bent portion 16 is formed. Then, the end 17 of the liquid refrigerant pipe 9 in which the second bent portion 16 is formed is passed through the insertion hole 12 (see FIG. 3) of the back panel 11a from the back side to the front side. Then, the operator moves from the back side to the front side of the outdoor unit A, and bends the liquid refrigerant pipe 9 drawn out to the front side through the insertion hole 12 almost directly under the liquid valve 6. 1 The bent portion 15 is formed, and then the end portion 17 of the liquid refrigerant pipe 9 is connected to the liquid valve 6.

When connecting the liquid refrigerant pipe 9 to the liquid valve 6 in the above procedure, the operator asks how long the second bent portion 16 should be formed from the end 17 of the liquid refrigerant pipe 9. Determined with reference to the liquid side mark 13. Here, the second bent portion 16 has a length L1 of the vertical portion 9a of the liquid refrigerant pipe 9 and a length L2 in the depth direction from the liquid valve 6 to the back panel 11a from the end 17 of the liquid refrigerant pipe 9. The minimum length obtained by adding the above is secured, and the position where the length L3 is added in addition to the length is the bending position. The length L3 is a length that is pulled out from the back panel 11a to the wall surface W side.

Therefore, the operator on the back side of the outdoor unit A visually confirms the liquid side mark 13, and determines how long the length L1 of the vertical portion 9a of the liquid refrigerant pipe 9 is, the liquid side mark 13 and the insertion hole 12. Estimate from the vertical length between and. Specifically, the insertion position of the liquid refrigerant pipe 9 in the insertion hole 12 is predicted, and the vertical length between the predicted position and the liquid side mark 13 is the length of the vertical portion 9a of the liquid refrigerant pipe 9. It is assumed as L1. Then, the operator grasps the length L2 in the depth direction from the liquid valve 6 to the back panel 11a by looking at the side of the housing 11 while staying on the back side of the outdoor unit A. Further, the length L3 is determined by the operator in consideration of the gap between the back panel 11a and the wall surface W.

As a result, the operator identifies the position where the length L1, the length L2, and the length L3 are added from the end 17 of the liquid refrigerant pipe 9 as the formation position of the second bending portion 16, and bends at the specified position. It may be processed. After the bending process, the end 17 of the liquid refrigerant pipe 9 may be connected to the liquid valve 6 by the procedure described above. The gas refrigerant pipe 10 may also be connected to the gas valve 7 in the same procedure with reference to the position of the gas side mark 14.

If the liquid side mark 13 is not provided on the back panel 11a, the position of the liquid valve 6 cannot be grasped from the position of the worker on the back side of the outdoor unit A. Therefore, the operator moves from the back side to the front side to confirm the position of the liquid valve 6, and then returns to the back side to specify the position where the second bent portion 16 is formed. That is, the operator has to proceed with the work while repeatedly going back and forth between the back side and the front side, which takes time and deteriorates the work efficiency.

Further, when the liquid side mark 13 is not provided on the back panel 11a, it is difficult to specify the formation position of the second bent portion 16, so that the second bent portion 16 can be formed at a position deviated from the regular position. There is sex. In this case, when the liquid refrigerant pipe 9 was pulled out from the back side to the front side into the insertion hole 12 after the processing of the second bent portion 16, the length of the vertical portion 9a of the liquid refrigerant pipe 9 was insufficient, and the liquid valve 6 There is a possibility that the inconvenience of not reaching On the contrary, the length of the vertical portion 9a is too long and must be cut, which may waste the piping.

On the other hand, in the first embodiment, since the bending position of the second bending portion 16 can be easily specified with reference to the liquid side mark 13, the operator moves back and forth between the back side and the front side. Is not required, and work efficiency can be improved. Further, it is possible to suppress the possibility that the length of the vertical portion 9a of the liquid refrigerant pipe 9 becomes insufficient, or conversely, it becomes too long.

In the above, the liquid side mark 13 and the gas side mark 14 are formed by providing unevenness on the back panel 11a, but the method for forming the mark is not limited to this. As another method for forming the mark, for example, a notch may be provided in the back panel 11a, or an adhesive such as tape may be attached to the outer surface of the back panel 11a. When the mark is made of an adhesive, there is an advantage that the appearance is not impaired because the sheet metal processing is not required and the mark can be peeled off after the installation of the outdoor unit A is completed.

Embodiment 2.
In the first embodiment, the liquid side mark 13 and the gas side mark 14 have the same configuration, but in the second embodiment, the liquid side mark 13 and the gas side mark 14 can be distinguished from each other. Is. Hereinafter, the second embodiment will be described focusing on the differences from the first embodiment.

FIG. 6 is a partially enlarged view of the outdoor unit of the air conditioner according to the second embodiment of the present invention as viewed from the rear side.
As shown in FIG. 6, the size of the circle is different between the liquid side mark 13 and the gas side mark 14, so that they can be distinguished from each other. The point that each mark is formed by the unevenness provided on the back panel 11a is the same as that of the first embodiment.

The liquid refrigerant pipe 9 and the gas refrigerant pipe 10 have different pipe diameters, that is, they are not the same pipe having the same diameter. Therefore, it is necessary to distinguish the liquid refrigerant pipe 9 and the gas refrigerant pipe 10 and connect them to the liquid valve 6 and the gas valve 7. Therefore, by making the liquid side mark 13 and the gas side mark 14 different, it is possible to distinguish the marks to be referred to when connecting the liquid refrigerant pipe 9 and the gas refrigerant pipe 10 to the liquid valve 6 and the gas valve 7. it can.

Here, in the liquid refrigerant pipe 9 and the gas refrigerant pipe 10, the pipe diameter of the gas refrigerant pipe 10 is larger than the pipe diameter of the liquid refrigerant pipe 9. Therefore, by inheriting the relationship between the size of the pipe diameter and the mark, and making the gas side mark 14 larger than the liquid side mark 13, which mark should be referred to when connecting the refrigerant pipes. Easy to grasp.

The configuration for distinguishing the liquid side marker 13 and the gas side marker 14 is not limited to the configuration in which the size of the circle is changed as described above. In addition, for example, when the mark has a rectangular shape, the lengths of the long sides may be different to distinguish them. When the mark is made of an adhesive, the character "liquid" may be printed on the liquid side mark 13 and the word "gas" may be printed on the gas side mark 14.

1 compressor, 2 four-way valve, 3 outdoor heat exchanger, 4 electronic expansion valve, 5 refrigerant container, 6 liquid valve, 7 gas valve, 8 indoor heat exchanger, 9 liquid refrigerant pipe, 9a vertical part, 10 gas refrigerant pipe, 11 Housing, 11a Back panel, 12 Insertion hole, 13 Liquid side mark, 14 Gas side mark, 15 1st bending part, 16 2nd bending part, 17 End part, A outdoor unit, B indoor unit, W wall surface.

The outdoor unit of the air conditioner according to the present invention is an outdoor unit of the air conditioner connected to the indoor unit by a refrigerant pipe, and has a housing having an insertion hole for passing the refrigerant pipe on the back panel and a housing. A valve that is arranged inside the pipe and is connected to the end of the refrigerant pipe that penetrates the insertion hole, and a bent portion of the refrigerant pipe is formed on the outer surface of the rear panel at a position facing the valve. A mark indicating the position of the valve is provided for determining the position.

Claims (5)

An outdoor unit of an air conditioner that is connected to an indoor unit by a refrigerant pipe.
A housing in which an insertion hole for passing the refrigerant pipe is formed on the back panel, and
A valve arranged inside the housing, including a valve connected to an end portion of the refrigerant pipe penetrating the insertion hole.
An outdoor unit of an air conditioner in which a mark indicating the position of the valve is provided on the outer surface of the back panel at a position facing the valve. The refrigerant pipe, the valve, and the mark each have two on the gas side and two on the liquid side, and the mark on the gas side and the mark on the liquid side are different from each other so as to be distinguishable. 1. The outdoor unit of the air conditioner according to 1. The outdoor unit of the air conditioner according to claim 1 or 2, wherein the mark is formed by unevenness provided on the back panel. The outdoor unit of the air conditioner according to claim 1 or 2, wherein the mark is formed by a notch provided in the back panel. The outdoor unit of the air conditioner according to claim 1 or 2, wherein the mark is formed of an adhesive adhered to the back panel.

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