JP2017187214A - Cooling device, refrigerating cycle device, and method for manufacturing the cooling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooling device, a refrigerating cycle device, and a method for manufacturing the cooling device which can efficiently cool an object to be cooled in a control box.SOLUTION: A cooling device includes a metal member 45 which has a metal member body 51, a pair of openings 52 and 54 provided on the metal member body 51 in a state of being exposed from an outer surface 51a of the metal member body 51 and functioning as an inlet and an outlet of a refrigerant, and a refrigerant flow passage 56 provided in the metal member body 51 to be connected with the pair of the openings 52 and 54 so that the refrigerant flows in contact with the metal member body 51.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a cooling device, a refrigeration cycle device including the cooling device, and a method for manufacturing the cooling device.

In an air conditioner that is a conventional refrigeration cycle apparatus, a power element that generates heat is generally used as an electric circuit for controlling the operation of an electric motor of a compressor. The electric circuit is accommodated in a control box. Some control boxes generate heat in addition to the power element.
Some conventional refrigeration cycle apparatuses have a cooling mechanism for suppressing the temperature of the power element from becoming higher than the operable temperature (see, for example, Patent Document 1).

  Patent Document 1 discloses a refrigerant jacket for cooling a power element. The refrigerant jacket disclosed in Patent Document 1 is configured to cover a part of the refrigerant pipe that connects the outdoor heat exchanger and the expansion valve. The refrigerant flowing through a part of the refrigerant pipe cools the power element through the refrigerant jacket.

Japanese Patent No. 4488093

By the way, in the refrigerant jacket disclosed in Patent Document 1, in order to efficiently cool the power element, it is important that the refrigerant jacket is in close contact with the outer peripheral surface of the refrigerant pipe and the refrigerant jacket. .
However, Patent Document 1 does not disclose any means for eliminating the gap between the outer peripheral surface of the refrigerant pipe and the refrigerant jacket and improving the adhesion between the outer peripheral surface of the refrigerant pipe and the refrigerant jacket. .
For this reason, in the refrigerant jacket disclosed in Patent Document 1, it is difficult to efficiently cool a member (hereinafter referred to as a “cooling target”) that is housed in the control box and generates heat to be cooled.

  Then, an object of this invention is to provide the manufacturing method of the cooling device which can cool the cooling target object in a control box efficiently, a refrigerating cycle device, and a cooling device.

  In order to solve the above-described problem, according to the cooling device according to one aspect of the present invention, heat exchange is performed between the object to be heated that is stored in the control box and the refrigerant that circulates in the refrigeration cycle device. A cooling device for cooling the object to be cooled, the metal member main body being provided on the metal member main body in a state exposed from the outer surface of the metal member main body, and functioning as an inlet / outlet of the refrigerant A metal member having a pair of openings, and a refrigerant channel that is provided in the metal member main body in a state of being connected to the pair of openings and through which the refrigerant flows. A part of the member main body that divides the refrigerant flow path is in contact with the refrigerant.

  According to the present invention, it is possible for the refrigerant to directly cool the metal member main body by providing the metal member main body with the refrigerant flow path that flows while the refrigerant is in contact with the metal member main body. Thereby, the cooling target object which generate | occur | produces the heat | fever accommodated in the control box can be efficiently cooled with the cold of a refrigerant | coolant through a metal member main body.

  Further, in the cooling device according to one aspect of the present invention, the pair of openings includes a first opening and a second opening, and is made of the same metal material as the metal member body. And the 1st connecting pipe comprised with the metal material different from the 1st refrigerant | coolant pipe | tube which comprises the said refrigeration cycle apparatus, The 2nd which comprises the said metal material same as the said metal member main body, and comprises the said refrigeration cycle apparatus. A second connecting pipe made of a metal material different from the refrigerant pipe, wherein the first connecting pipe has one end connected to the first opening and the other end connected to the first refrigerant. One end of the second connection pipe may be connected to the second opening, and the other end may be connected to the second refrigerant pipe.

In this way, the first connection pipe made of the same metal material as the metal member main body and different from the first refrigerant pipe is connected to the first opening provided in the metal member main body. By doing so, the same metal material is joined. For this reason, a 1st connection pipe and a 1st opening part can be easily joined in a favorable state.
Further, the second connection pipe made of the same metal material as the metal member main body and different from the second refrigerant pipe is connected to the second opening provided in the metal member main body. Thus, the same metal material is joined. For this reason, a 2nd connection pipe and a 2nd opening part can be easily joined in a favorable state.

  Further, in the cooling device according to one aspect of the present invention, the coolant channel has a plurality of through channels that penetrate the metal member main body in a predetermined direction, and the through channel is formed of the metal Connected to two third openings provided at adjacent positions, including a third opening provided at an end of the metal member main body and disposed at an end so as to be exposed from an outer surface of the metal member main body It may further have a U-shaped tube.

Thus, even when the refrigerant flow path includes a plurality of through flow paths that penetrate the metal member main body in a predetermined direction, the refrigerant flow path is accommodated in the control box by the cold heat of the refrigerant through the metal member main body. The cooled object can be efficiently cooled.
In addition, for example, when the refrigerant flow path is configured by only a plurality of through flow paths, the refrigerant flow path can be easily processed as compared to a case where a tortuous refrigerant flow path is processed.

  Moreover, the cooling device which concerns on 1 aspect of the said invention WHEREIN: The said U-shaped pipe may be comprised with the same metal material as the said metal member main body.

  In this way, by configuring the U-shaped tube with the same metal material as that of the metal member main body, the same metal material is bonded when the metal member main body and the U-shaped tube are bonded. Thereby, since a different metal contact corrosion does not generate | occur | produce, a U-shaped pipe and a metal member main body can be joined in a favorable state.

  Further, in the cooling device according to one aspect of the present invention, the first moisture suppressing member that covers the connection portion between the first connection pipe and the first refrigerant pipe, the second connection pipe, and the first And a second moisture suppression member that covers a connection portion with the second refrigerant pipe.

Thus, by having the 1st moisture suppression member which covers the connection part of the 1st connection pipe and the 1st refrigerant pipe, it can control that moisture adheres to the connection part to which a different metal material was connected. Therefore, it is possible to suppress the occurrence of different metal contact corrosion at the connection portion.
Moreover, it becomes possible to suppress that water adheres to the connection part to which the different metal material was connected by having the 2nd moisture suppression member which covers the connection part of the 2nd connection pipe and the 2nd refrigerant pipe. Therefore, it is possible to suppress the occurrence of dissimilar metal contact corrosion at the connection portion.

  In order to solve the above problems, according to a refrigeration cycle apparatus according to an aspect of the present invention, an outdoor unit including the cooling device, and the outdoor unit in a state where the refrigerant flowing in the outdoor unit can be introduced and led out. And connected indoor units.

According to the present invention, it is possible to directly cool the metal member body by providing the coolant channel in the state where the coolant is in contact with the metal member body in the metal member body.
Thereby, the cooling object accommodated in the control box and generating heat can be efficiently cooled by the cold heat of the refrigerant through the metal member main body.

  In order to solve the above-described problem, according to the method for manufacturing a cooling device according to one aspect of the present invention, the cooling object is cooled by heat exchange between the cooling object that generates heat and the refrigerant stored in the control box. A method of manufacturing a cooling device including a metal member, wherein the metal member main body includes first and second openings serving as a gateway of the refrigerant, the first opening, and the second opening. A refrigerant flow path provided in the metal member main body so as to be connected to the metal member main body to obtain the metal member, and a first metal member made of the same metal material as the metal member main body. Joining one connecting pipe to the first opening, and joining a second connecting pipe made of the same metal material as the metal member body to the second opening. But you can.

  According to the present invention, since the refrigerant flows in the refrigerant flow channel in a state in which the metal member main body is in contact with the portion defining the refrigerant flow channel, the refrigerant can directly cool the metal member main body. Become. Thereby, the cooling target object which generate | occur | produces the heat | fever accommodated in the control box can be efficiently cooled with the cold of a refrigerant | coolant through a metal member main body.

In addition, the first connecting pipe is joined to the first opening, and the second connecting pipe is joined to the second opening, so that the refrigerant passes through the first opening or the second opening. It becomes possible to join a pair of pipes for supplying and collecting the refrigerant into the flow path at positions separated from the metal member main body.
Thereby, for example, when the pair of pipes is made of a metal material different from the metal member main body, the moisture suppressing member can be easily provided in the connection portion (joint portion). It is possible to suppress contact corrosion of dissimilar metals at (joining part).

  According to the present invention, the object to be cooled in the control box can be efficiently cooled.

1 is a system diagram showing a schematic configuration of a refrigeration cycle apparatus according to a first embodiment of the present invention. It is the figure which expanded the part enclosed with the area | region A among the refrigerating-cycle apparatuses shown in FIG. FIG. 3 is a diagram schematically showing a state in which the first and second connection pipes are separated from the metal member after the first and second moisture suppressing members are removed from the structure shown in FIG. 2. It is the figure which looked at the metal member shown in FIG. It is a systematic diagram which shows schematic structure of the refrigerating-cycle apparatus which concerns on the 1st modification of the 1st Embodiment of this invention. It is a systematic diagram which shows schematic structure of the refrigerating-cycle apparatus which concerns on the 2nd modification of the 1st Embodiment of this invention. It is a figure which shows the cooling device which concerns on the 2nd Embodiment of this invention. It is a figure which shows the cooling device which concerns on the 3rd Embodiment of this invention. It is a figure which shows the cooling device which concerns on the 4th Embodiment of this invention. It is a figure which shows typically the state which spaced apart the metal members and U-shaped pipe which are shown in FIG. It is the figure which looked at the metal members shown in FIG. It is a figure which shows the cooling device which concerns on the 5th Embodiment of this invention. It is a figure which shows the cooling device which concerns on the 6th Embodiment of this invention. It is a figure which shows the cooling device which concerns on the 7th Embodiment of this invention. It is a figure which shows typically the state which spaced apart the U-shaped tube and metal member which are shown in FIG. It is a figure which shows typically the stage before the U-shaped piping shown in FIG. 15 is expanded.

  Embodiments to which the present invention is applied will be described below in detail with reference to the drawings. The drawings used in the following description are for explaining the configuration of the embodiment of the present invention, and the size, thickness, dimensions, etc. of each part shown in the drawings are the dimensional relationships of the actual cooling device and refrigeration cycle device. May be different.

(First embodiment)
FIG. 1 is a system diagram showing a schematic configuration of a refrigeration cycle apparatus according to the first embodiment of the present invention. FIG. 1 illustrates a configuration of a multi-type air conditioner as an example of the refrigeration cycle apparatus 10.

  Referring to FIG. 1, the refrigeration cycle apparatus 10 according to the first embodiment includes one outdoor unit 11, a gas side pipe 12, branching devices 14A, 14B, 17A, and 17B, and a liquid side pipe 16. And indoor units 18 and 19.

  The outdoor unit 11 includes a compressor 21, a discharge pipe 22, a four-way switching valve 23, gas pipes 24, 26, and 36, an outdoor heat exchanger 25, a heating outdoor expansion valve 27 (EEVH), and a receiver. 28, liquid pipe 29, suction pipe 31, liquid pipe 32, control box (not shown), cooling device 34, accumulator 35, gas side operation valve 37, liquid side operation valve 39, And an outdoor fan 41.

The compressor 21 is connected to one end of the discharge pipe 22 and the other end of the suction pipe 31. The compressor 21 generates high-temperature and high-pressure refrigerant gas by compressing the refrigerant. The high-temperature and high-pressure refrigerant gas is supplied to the four-way switching valve 23 via the discharge pipe 22.
The other end of the discharge pipe 22 is connected to the four-way switching valve 23.

The four-way switching valve 23 is connected to the other ends of the gas pipe 24, the suction pipe 31, and the gas pipe 36. The four-way switching valve 23 is a valve for switching a pipe for supplying a high-temperature and high-pressure refrigerant gas supplied via the discharge pipe 22 (in other words, switching a refrigerant circulation path).
The outdoor heat exchanger 25 is connected to the other end of the gas pipe 24 and one end of the gas pipe 26.
The outdoor heat exchanger 25 exchanges heat between the refrigerant supplied through the gas pipe 24 or the gas pipe 26 and the outside air supplied through the outdoor fan 41.

A part of the gas pipe 26 penetrates the receiver 28 so that the other end is disposed in the receiver 28.
The outdoor expansion valve 27 is provided in the gas pipe 26 located between the outdoor heat exchanger 25 and the receiver 28.

The receiver 28 is a tank that stores a refrigerant in a liquid state (hereinafter simply referred to as “liquid refrigerant”).
A part of the liquid pipe 29 penetrates the receiver 28 so that one end is disposed in the receiver 28. The other end of the liquid pipe 29 is connected to a liquid side operation valve 39.
The other end of the suction pipe 31 is connected to the compressor 21.

  The liquid pipe 32 includes a first refrigerant pipe 32A and a second refrigerant pipe 32B. The first refrigerant pipe 32A is branched from a suction pipe 31 positioned between the four-way switching valve 23 and the accumulator 35. The first refrigerant pipe 32 </ b> A is connected to the cooling device 34. A part of the liquid refrigerant flowing through the suction pipe 31 flows into the first refrigerant pipe 32A. That is, the liquid refrigerant is introduced into the cooling device 34 through the first refrigerant pipe 32A.

The second refrigerant pipe 32 </ b> B is branched from a liquid pipe 29 positioned between the receiver 28 and the liquid side operation valve 39. The second refrigerant pipe 32B is connected to the cooling device 34. Liquid refrigerant that has passed through the cooling device 34 and contributed to heat exchange is led out to the second refrigerant pipe 32B. The liquid refrigerant led out into the second refrigerant pipe 32B flows into the suction pipe 31.
The first and second refrigerant tubes 32A and 32B are made of a metal material having high thermal conductivity. For example, copper can be used as the metal material forming the first and second refrigerant tubes 32A and 32B.

  The control box (not shown) accommodates a cooling object 33 that generates heat and a cooling device 34. The cooling target 33 is disposed so as to contact the metal member 45 constituting the cooling device 34. Examples of the cooling object 33 include a power element, a diode module, a reactor, and the like.

FIG. 2 is an enlarged view of a portion surrounded by region A in the refrigeration cycle apparatus shown in FIG. 2, the same components as those in the structure shown in FIG. In FIG. 2, the X direction indicates the width direction of the metal member main body 51, and the Y direction indicates the length direction of the metal member main body 51.
FIG. 3 is a view schematically showing a state in which the first and second moisture suppression members are removed from the structure shown in FIG. 2 and the first and second connection pipes are separated from the metal member. is there. In FIG. 3, the same components as those of the structure shown in FIG.
4 is a view of the metal member shown in FIG. In FIG. 4, the same components as those of the structure shown in FIG. Moreover, the Z direction shown in FIG. 4 has shown the thickness direction of the metal member main body 51 orthogonal to the X direction.

  1 to 4, the cooling device 34 includes a metal member 45, a first connection pipe 46, a second connection pipe 47, a first moisture suppression member 59, and a second moisture. And a restraining member 62.

The metal member 45 includes a metal member main body 51, a first opening 52, a second opening 54, and a coolant channel 56.
The metal member main body 51 is a metal block having a predetermined thickness. The metal member main body 51 has a pair of outer surfaces 51a and 51b orthogonal to the Y direction.
As a metal material which comprises the metal member main body 51, a metal material (for example, aluminum, copper, etc.) with high heat conductivity is preferable. As a metal material constituting the metal member main body 51, for example, aluminum that is lightweight and inexpensive is more preferable.
2 and 3, the rectangle is illustrated as an example of the shape when the metal member main body 51 is viewed in plan, but the shape of the metal member main body 51 is not limited thereto.

  The first opening 52 is provided in the metal member main body 51 in a state of being exposed from the outer surface 51 a of the metal member main body 51. The first opening 52 is connected to one end 46 </ b> A of the first connection pipe 46. The first opening 52 is introduced with a refrigerant in a liquid state flowing through the first refrigerant pipe 32 </ b> A through the first connection pipe 46.

The second opening 54 is provided in the metal member main body 51 in a state of being exposed from the outer surface 51 a of the metal member main body 51. The second opening 54 is disposed on the same outer surface 51 a side as the first opening 52. The second opening 54 is separated from the first opening 52 in the X direction.
The second opening 54 is connected to one end 47 </ b> A of the second connection pipe 47. The second opening 54 flows through the refrigerant flow path 56, thereby contributing to the cooling of the object 33 to be cooled and leading the liquid refrigerant whose temperature has risen to the second connecting pipe 47.

  The coolant channel 56 is provided in the metal member main body 51 so as to be connected to the first opening 52 and the second opening 54. The refrigerant flow path 56 is U-shaped. The coolant channel 56 is a channel partitioned by the metal member main body 51. Liquid refrigerant is introduced into the refrigerant flow path 56 via the first opening 52. The refrigerant flows through the refrigerant flow path 56 in a state of being in direct contact with a portion (part of the metal member main body 51) that partitions the refrigerant flow path 56 in the metal member main body 51.

  The metal member 45 having the above configuration cools the cooling target 33 by exchanging heat between the cooling target 33 that generates heat and the refrigerant flowing in the refrigerant flow path 56.

  As described above, by providing the metal member main body 51 with the refrigerant flow channel 56 that flows in a state where the refrigerant is in contact with the metal member main body 51, the refrigerant can directly cool the metal member main body 51. . Thereby, the cooling object 33 that generates heat and is accommodated in the control box can be efficiently cooled by the cold heat of the refrigerant through the metal member main body 51.

  The first connection pipe 46 is a pipe having an L shape. The first connection pipe 46 is made of the same metal material as that of the metal member main body 51 and is made of a metal material different from that of the first refrigerant pipe 32A. For example, when the metal material of the metal member main body 51 is aluminum and the metal material of the first refrigerant pipe 32A is copper, aluminum can be used as the metal material of the first connection pipe 46.

One end 46 </ b> A of the first connection pipe 46 is connected to the first opening 52. One end 46A is fixed to the first opening 52 by welding or brazing.
In the case where one end 46A and the first opening 52 are joined by welding, a welded portion (not shown) is formed at a connection portion between the one end 46A and the first opening 52. The The welded portion is formed by the one end 46A and the first opening 52 being solidified after melting.
When one end 46A and the first opening 52 are joined by brazing, a brazed portion (not shown) is connected to the connecting portion between the one end 46A and the first opening 52. It is formed. The brazing portion is formed by solidifying an alloy (brazing) having a melting point lower than that of the metal material constituting the metal member main body 51 and the first connection pipe 46 after melting.

  As described above, the first connection pipe 46 made of the same metal material as the metal member main body 51 and different from the first refrigerant pipe 32A is provided in the metal member main body 51. By connecting with the opening 52, the same metal material is joined. For this reason, the 1st connection pipe 46 and the 1st opening part 52 can be easily joined in a favorable state.

  When joining one end 46A of the first connecting pipe 46 and the first opening 52, with a part of the one end 46A inserted into the first opening 52, One end 46A and the first opening 52 may be joined.

  The other end 46B is connected to the first refrigerant pipe 32A. As described above, the first connection pipe 46 is made of the same metal material as that of the metal member main body 51. For this reason, the joining between the other end 46B and the first refrigerant pipe 32A is a joining of dissimilar metals. Therefore, when water adheres to the connection portion 58 between the other end 46B and the first refrigerant pipe 32A, there is a risk that dissimilar metal contact corrosion occurs.

The other end 46B is fixed to the first refrigerant pipe 32A by welding or brazing.
When the other end 46B and the first refrigerant pipe 32A are welded and joined, a welded portion (not shown) is formed at the connection portion 58 between the other end 46B and the first refrigerant pipe 32A. Is done.
When the other end portion 46B and the first refrigerant pipe 32A are joined by brazing, a brazed portion (not shown) is connected to the connecting portion 58 between the other end portion 46B and the first refrigerant pipe 32A. Is formed.

  The second connection pipe 47 is a pipe having an L shape. The second connection pipe 47 is made of the same metal material as that of the metal member main body 51 and is made of a metal material different from that of the second refrigerant pipe 32B. For example, when the metal material of the metal member main body 51 is aluminum and the metal material of the second refrigerant pipe 32B is copper, aluminum can be used as the metal material of the second connection pipe 47.

One end 47 </ b> A of the second connection pipe 47 is connected to the first opening 52. One end 47A is fixed to the second opening 54 by welding or brazing.
In the case where one end 47A and the second opening 54 are welded and joined, a welded portion (not shown) is formed at a connection portion between the one end 47A and the second opening 54. The The welded portion is formed by the one end portion 47A and the second opening 54 solidifying after melting.
In the case where one end 47A and the second opening 54 are joined by brazing, a brazed portion (not shown) is provided at a connection portion between the one end 47A and the second opening 54. It is formed. The brazing portion is formed by an alloy (brazing) having a melting point lower than that of the metal material constituting the metal member main body 51 and the second connection pipe 47 being solidified after melting.

  As described above, the second connecting pipe 47 made of the same metal material as that of the metal member main body 51 and different from the first refrigerant pipe 32A is provided in the second member main body 51. By connecting with the opening 54, the same metal material is joined. For this reason, the 2nd connection pipe 47 and the 2nd opening part 54 can be easily joined in a favorable state.

  When joining one end 47A of the second connection pipe 47 and the second opening 54, in a state where a part of the one end 47A is inserted into the second opening 54, One end 47A and the second opening 54 may be joined.

  The other end 47B is connected to the second refrigerant pipe 32B. As described above, the second connection pipe 47 is made of the same metal material as that of the metal member main body 51. For this reason, the joining between the other end 47B and the second refrigerant pipe 32B is a joining of dissimilar metals. Therefore, when water adheres to the connecting portion 61 between the other end 47B and the second refrigerant pipe 32B, there is a possibility that foreign metal contact corrosion occurs.

The other end 47B is fixed to the second refrigerant pipe 32B by welding or brazing.
When the other end 47B and the second refrigerant pipe 32B are welded and joined, a welded portion (not shown) is formed at the connection portion 61 between the other end 47B and the second refrigerant pipe 32B. Is done.
When the other end portion 47B and the second refrigerant pipe 32B are joined by brazing, a brazed portion (not shown) is connected to the connecting portion 61 between the other end portion 47B and the second refrigerant pipe 32B. Is formed.

The first moisture suppressing member 59 is provided so as to cover the connection portion 58. The 1st moisture suppression member 59 is a member for suppressing that the moisture from the outside adheres to the part to which a dissimilar metal material was connected. As the first moisture suppressing member 59, for example, a tube capable of suppressing moisture permeation can be used.
Specifically, as the first moisture suppressing member 59, for example, a heat shrinkable tube can be used.
Thus, by arranging the first moisture suppression member 59 so as to cover the connection portion between the first connection pipe 46 and the first refrigerant pipe 32A, the connection portion 58 to which different metal materials are connected is provided. Since it is possible to suppress the adhesion of moisture, it is possible to suppress the occurrence of dissimilar metal contact corrosion at the connection portion 58.

  The second moisture suppression member 62 is provided so as to cover the connection portion 61. The 2nd moisture suppression member 62 is a member for suppressing that the moisture from the outside adheres to the part to which a dissimilar metal material was connected. As the second moisture suppression member 62, for example, a member similar to the first moisture suppression member 59 described above can be used.

  Thus, by having the 2nd moisture suppression member 62 which covers the connection part 61 of the 2nd connection pipe 47 and the 2nd refrigerant pipe 32B, a water | moisture content adheres to the connection part 61 to which a different metal material was connected. Therefore, it is possible to suppress the occurrence of dissimilar metal contact corrosion at the connection portion 61.

Referring to FIG. 1, the accumulator 35 is provided in the suction pipe 31 positioned between the branch position of the second refrigerant pipe 32 </ b> B and the compressor 21.
The accumulator 35 separates the liquid component from the components contained in the refrigerant sucked into the compressor 21 and causes the compressor 21 to suck only the gas component.
The other end of the gas pipe 36 is connected to the gas side operation valve 37. The liquid side operation valve 39 is connected to the other end of the liquid pipe 29.
The outdoor fan 41 is provided at a position facing the outdoor heat exchanger 25.

One end of the gas side pipe 12 is connected to the gas side operation valve 37, and the other end is connected to the branching device 14A.
The branching device 14A branches the branch gas side pipe 12A, and is connected to one end of the branch gas side pipe 12A. The branching device 14B branches the branch gas side pipe 12B, and is connected to one end of the branch gas side pipe 12B.
The branch gas side pipe 12 </ b> A is connected to the indoor unit 18. The branch gas side pipe 12 </ b> B is connected to the indoor unit 19.

One end of the liquid side pipe 16 is connected to the liquid side operation valve 39, and the other end is connected to the branching device 17A.
The branching device 17A branches the branch liquid side pipe 16A and is connected to one end of the branch liquid side pipe 16A. The branching device 17B branches the branch liquid side pipe 16B, and is connected to one end of the branch liquid side pipe 16B.
The branch liquid side pipe 16 </ b> A is connected to the indoor unit 18. The branch liquid side pipe 16 </ b> B is connected to the indoor unit 19.

The indoor unit 18 circulates the indoor air through the indoor heat exchanger 71 (EEVC) and the indoor heat exchanger 71 that are used for indoor air conditioning by exchanging heat between the refrigerant and the indoor air. And an indoor fan 74.
The indoor heat exchanger 71 is connected to the branch gas side pipe 12A. The indoor expansion valve 72 is connected to the branch liquid side pipe 16A.

  The indoor unit 19 has the same configuration as the indoor unit 18 described above. The indoor heat exchanger 71 constituting the indoor unit 19 is connected to the branch gas side pipe 12B. The indoor expansion valve 72 constituting the indoor unit 19 is connected to the branch liquid side pipe 16B.

  In the refrigeration cycle apparatus 10 configured as described above, the heating operation is performed by the following method. The high-temperature and high-pressure refrigerant gas compressed by the compressor 13 is discharged to the discharge pipe 22 and then circulated to the gas pipe 36 side by the four-way switching valve 23. This refrigerant is led out from the outdoor unit 11 through the gas side operation valve 37 and the gas side pipe 12, and further introduced into the indoor units 18 and 19 through the branching units 14A and 14B and the branching gas side pipes 12A and 12B on the indoor side. Is done.

The high-temperature and high-pressure refrigerant gas introduced into the indoor units 18 and 19 is heat-exchanged with indoor air circulated by the indoor fan 74. By this heat exchange, the indoor air is heated and used for indoor heating.
On the other hand, the refrigerant is condensed, reaches the branching units 17A and 17B through the indoor expansion valve 72 and the branch liquid side pipes 16A and 16B, and merges with the refrigerant from other indoor units, and then passes through the liquid side pipe 16 and the outdoor unit. 11 is returned.

The refrigerant that has returned to the outdoor unit 11 flows into the receiver 28 via the liquid side operation valve 39 and the liquid pipe 29 and is temporarily stored, whereby the circulation amount of the liquid refrigerant is adjusted.
This liquid refrigerant is supplied to the outdoor expansion valve 23 via the liquid pipe 29, and after being adiabatically expanded there, it flows into the outdoor heat exchanger 25.

In the outdoor heat exchanger 25, heat is exchanged between the outside air blown from the outdoor fan 41 and the refrigerant, and the refrigerant absorbs heat from the outside air and is evaporated and gasified. The gasified refrigerant is merged with the liquid refrigerant led out from the second refrigerant pipe 32 </ b> B from the outdoor heat exchanger 25 through the gas pipe 24, the four-way switching valve 23, and the suction pipe 31, and is introduced into the accumulator 35. .
In the accumulator 35, the liquid component contained in the refrigerant is separated, and only the gas component is sucked into the compressor 21 and compressed again in the compressor 21.
The heating operation is performed by repeating the above-described cycle.

On the other hand, the cooling operation is performed by the following method.
The high-temperature and high-pressure refrigerant gas compressed by the compressor 21 is discharged to the discharge pipe 22, and then the refrigerant gas is circulated to the gas pipe 24 side by the four-way switching valve 23, and the outdoor heat exchanger 25 uses the outdoor fan 41. Heat is exchanged with the outside air to be blown, and it is condensed and liquefied. This liquid refrigerant passes through the outdoor expansion valve 27 and is temporarily stored in the receiver 28.

  The liquid refrigerant whose circulation amount is adjusted by the receiver 28 is led out from the outdoor unit 11 to the liquid side pipe 16 via the liquid side operation valve 39. Then, the liquid refrigerant led to the liquid side pipe 16 is divided into the branch liquid side pipes 16A and 16B of the indoor units 18 and 19 by the branch units 14A and 14B.

The liquid refrigerant divided into the branch liquid side pipes 16A and 16B flows into the indoor units 18 and 19, is adiabatically expanded by the indoor expansion valve 72, and flows into the indoor heat exchanger 71 as a gas-liquid two-phase flow. Is done.
In the indoor heat exchanger 71, heat is exchanged between the refrigerant that has become a gas-liquid two-phase flow and the indoor air circulated by the indoor fan 74.
By this heat exchange, the indoor air is cooled and provided for indoor cooling. On the other hand, the refrigerant is gasified and reaches the branching devices 14A and 14B through the branch gas side pipes 12A and 12B, and is merged with the refrigerant gas from the other indoor units in the gas side pipe 12.

The refrigerant gas merged in the gas side pipe 12 returns to the outdoor unit 11 again and reaches the suction pipe 31 through the gas side operation valve 37, the gas pipe 36, and the four-way switching valve 23.
In the accumulator 35, the liquid component contained in the refrigerant is separated, and only the gas component is sucked into the compressor 21. This refrigerant is compressed again in the compressor 21.
The cooling operation is performed by repeating the cycle described above.

According to the cooling device 34 of the first embodiment, the refrigerant is flown in the state where the refrigerant is in contact with the metal member main body 51, and the refrigerant is flown into the metal member main body 51 so that the refrigerant is the metal member main body 51. Can be directly cooled. Thereby, the cooling object 33 that generates heat and is accommodated in the control box can be efficiently cooled by the cold heat of the refrigerant through the metal member main body 51.
In addition, the refrigeration cycle 10 of the first embodiment including the cooling device 34 configured as described above can obtain the same effects as the cooling device 34 described above.

Here, with reference to FIG.2 and FIG.3, the manufacturing method of the cooling device of 1st Embodiment is demonstrated easily.
In the manufacturing method of the cooling device of the first embodiment, the first and second openings 52 and 54, the first opening 52 and the second opening are formed on a metal member body 51 prepared in advance by a known method. Forming a coolant channel 56 provided in the metal member main body 51 so as to be connected to the opening 54 of the metal member, and obtaining the metal member 45; The step of joining the first connecting pipe 46 configured in the above to the first opening 52 and the second connecting pipe 47 configured of the same metal material as the metal member main body 51 to the second opening 54 Bonding.
The refrigerant channel 56 can be formed by a technique such as machining or electrolytic machining, for example.

  According to the manufacturing method of the cooling device of the first embodiment, the refrigerant flows in the refrigerant flow channel 56 in a state in which the metal member main body 51 is in contact with the portion that defines the refrigerant flow channel 56. The metal member main body 51 can be directly cooled. Thereby, the cooling object 33 that generates heat and is accommodated in the control box can be efficiently cooled by the cold heat of the refrigerant through the metal member main body 51.

Also, the first and second refrigerant pipes 32A and 32B are joined by joining the first connecting pipe 46 to the first opening 52 and joining the second connecting pipe 47 to the second opening 54. The metal member main body 51 (the first opening 52 and the second opening 54) can be joined at a position separated from the metal member main body 51 (the first opening 52 and the second opening 54).
Thereby, for example, when the first and second refrigerant tubes 32A and 32B are made of a metal material different from the metal member main body 51, the first and second moisture suppressing members 59 and 62 are connected. Since it becomes possible to provide easily in the parts 59 and 61 (joining part), the dissimilar-metal contact corrosion in the connection parts 59 and 61 can be suppressed.

  In the first embodiment, as an example, the case where the first and second connecting pipes 46 and 47 are L-shaped has been described as an example. However, the first and second connecting pipes 46 and 47 are described as an example. The shape of 47 is not limited to this. The shape of the first and second connection pipes 46 and 47 may be, for example, a shape extending in one direction or a shape bent at a plurality of locations.

In the first embodiment, the case where the cooling device 34 includes the first and second connection pipes 46 and 47 has been described as an example. However, the first and second connection pipes 46 and 46 are configured from the configuration of the cooling device. 47, except that the first refrigerant pipe 32A and the first opening 52 are connected, the second refrigerant pipe 32B and the second opening 54 are connected, and the first and Second moisture suppressing members 59 and 62 may be provided.
Even when the cooling device configured as described above is used, the heat generating object 33 accommodated in the control box can be efficiently cooled.

In the first embodiment, as an example, the case where the metal material of the metal member main body 51 is different from the metal material of the first and second refrigerant pipes 32A and 32B has been described as an example. 51, the first refrigerant pipe 32A, and the second refrigerant pipe 32B may be made of the same metal material.
In this case, even when the first refrigerant pipe 32A and the first opening 52 are directly connected and the second refrigerant pipe 32B and the second opening 54 are directly connected, the different metal caused by moisture Since contact corrosion does not occur, the first and second moisture suppression members 59 and 62 can be removed from the components of the cooling device.

FIG. 5 is a system diagram showing a schematic configuration of a refrigeration cycle apparatus according to a first modification of the first embodiment of the present invention. In FIG. 5, the same components as those in the structure shown in FIG.
In FIG. 5, as an example, a case where the first and second connecting pipes 46 and 47 constituting the cooling device 34 extend in one direction is illustrated.

Referring to FIG. 5, the refrigeration cycle apparatus 80 according to the first modification of the first embodiment removes the liquid pipe 32 that constitutes the refrigeration cycle 10 of the first embodiment from the constituent elements, and the liquid pipe 29. Is constituted by the first and second refrigerant pipes 29A and 29B, and is constituted in the same manner as the refrigeration cycle apparatus 10 except that the first and second refrigerant pipes 29A and 29B are connected to the cooling device 34.
That is, the refrigeration cycle apparatus 80 is different from the refrigeration cycle apparatus 10 in the arrangement position of the cooling device 34.
The first refrigerant pipe 29 </ b> A is connected to the first connection pipe 46. The second refrigerant pipe 29 </ b> B is connected to the second connection pipe 47.

Also in the refrigeration cycle apparatus 80 having such a configuration, it is possible to obtain the same effect as that of the refrigeration cycle 10 of the first embodiment.
Further, in the refrigeration cycle apparatus 10 shown in FIG. 1 described above, the cooling device 34 is provided in the liquid pipe 32 that functions as a bypass line, whereas in the refrigeration cycle apparatus 80 shown in FIG. A cooling device 34 is provided in the liquid pipe 29 that functions as:
For this reason, the liquid piping 32 becomes unnecessary, and the refrigeration cycle apparatus 80 can more easily construct the cooling apparatus 34 than the refrigeration cycle apparatus 10.
Therefore, the refrigeration cycle device 80 can reduce the construction cost of the cooling device 34 than the refrigeration cycle device 10.

FIG. 6 is a system diagram showing a schematic configuration of a refrigeration cycle apparatus according to a second modification of the first embodiment of the present invention. In FIG. 6, the same components as those in the structure shown in FIG.
In FIG. 6, as an example, a case where the first and second connection pipes 46 and 47 constituting the cooling device 34 extend in one direction is illustrated.

Referring to FIG. 6, the refrigeration cycle apparatus 90 according to the second modification of the first embodiment removes the liquid pipe 32 that constitutes the refrigeration cycle 10 of the first embodiment from the constituent elements, and the gas pipe 26. Is constituted by the first and second refrigerant pipes 26A and 26B, and is constituted in the same manner as the refrigeration cycle apparatus 10 except that the first and second refrigerant pipes 26A and 26B are connected to the cooling device 34.
That is, the refrigeration cycle apparatus 90 is different from the refrigeration cycle apparatus 10 in the arrangement position of the cooling device 34.
The first refrigerant pipe 26 </ b> A is connected to the first connection pipe 46. The second refrigerant pipe 26 </ b> B is connected to the second connection pipe 47.

Also in the refrigeration cycle apparatus 90 having such a configuration, it is possible to obtain the same effect as that of the refrigeration cycle 10 of the first embodiment.
In the refrigeration cycle apparatus 90, the cooling device 34 is provided in the gas pipe 26 positioned between the outdoor heat exchanger 25 and the receiver 28. For this reason, during the cooling operation, the cooling device 34 is positioned upstream of the receiver 28 in the refrigerant flow direction.
Therefore, during the cooling operation, the refrigeration cycle apparatus 90 can return to the liquid state by the receiver 28 located at the subsequent stage of the cooling device 34 even if the refrigerant phase is once in the cooling device 34. it can.

(Second Embodiment)
FIG. 7 is a view showing a cooling device according to the second embodiment of the present invention. In FIG. 7, the same components as those in the structure shown in FIG.

  Referring to FIG. 7, the cooling device 95 of the second embodiment is replaced with a metal member 96 and a first connecting pipe 46 that constitute the cooling device 34 of the first embodiment. Except for having the first connection pipe 97, the cooling apparatus 34 is configured in the same manner.

The metal member 96 has a refrigerant flow path 99 that is longer than the refrigerant flow path 56 in place of the refrigerant flow path 56 constituting the metal member 45 described in the first embodiment, and the first The opening 52 is provided on the outer surface 51b side of the metal member main body 51, and is configured in the same manner as the metal member 45. Thus, the first and second openings 52 and 54 may be arranged on different outer surfaces of the metal member main body 51.
One end of the refrigerant flow path 99 is integrated with the first opening 52, and the other end is integrated with the second opening 54.
The first connection pipe 97 has the same configuration as the first connection pipe 46 described in the first embodiment except that the first connection pipe 97 is bent at three locations.

The cooling device 95 of the second embodiment configured as described above can increase the width of the metal member main body 51 in the X direction.
Further, the cooling device 95 of the second embodiment can obtain the same effects as the cooling device 34 of the first embodiment described above.

(Third embodiment)
FIG. 8 is a view showing a cooling device according to the second embodiment of the present invention. In FIG. 8, the same components as those of the structure shown in FIG.

  Referring to FIG. 8, the cooling device 105 of the third embodiment is a cooling device except that it has a metal member 106 instead of the metal member 45 constituting the cooling device 34 of the first embodiment. 34 is configured in the same manner.

The metal member 106 is a metal except that it has a refrigerant channel 108 longer than the refrigerant channel 56 instead of the refrigerant channel 56 constituting the metal member 45 described in the first embodiment. The configuration is the same as that of the manufacturing member 45.
One end of the coolant channel 108 is integrated with the first opening 52, and the other end is integrated with the second opening 54. The refrigerant flow path 108 is configured to be longer than the refrigerant flow dew 99 shown in FIG.

The cooling device 105 of the third embodiment having such a configuration makes the width of the metal member main body 51 in the X direction wider than the metal member main body 51 constituting the cooling device 95 of the second embodiment. be able to.
Further, the cooling device 105 of the third embodiment can obtain the same effect as the cooling device 34 of the first embodiment described above.

(Fourth embodiment)
FIG. 9 is a view showing a cooling device according to the fourth embodiment of the present invention. In FIG. 9, the same components as those of the structure shown in FIG.
FIG. 10 is a diagram schematically showing a state in which the metal member and the U-shaped tube shown in FIG. 9 are separated from each other. In FIG. 10, the same components as those of the structure shown in FIG.
FIG. 11 is a view of the metal member shown in FIG. In FIG. 11, the same components as those shown in FIGS. 4 and 10 are denoted by the same reference numerals.

  Referring to FIGS. 9 to 11, the cooling device 110 according to the fourth embodiment includes a metal member 111 and a U-shaped tube 113 instead of the metal member 45 constituting the cooling device 34 according to the first embodiment. Except having it, it is comprised similarly to the cooling device 34. FIG.

  The metal member 111 is configured in the same manner as the metal member 45 except that it has a coolant channel 115 instead of the coolant channel 56 that configures the metal member 45 described in the first embodiment. .

The refrigerant channel 115 has through channels 116 and 117 (a plurality of through channels). The through channels 116 and 117 penetrate the metal member body 51 in the Y direction. The through channels 116 and 117 are arranged in the X direction.
The through flow path 116 includes a first opening 52 disposed at one end and a third opening 116A disposed at the other end. The third opening 116 </ b> A is disposed on the outer surface 51 b side of the metal member main body 51.
The through flow path 117 includes a second opening 54 disposed at one end and a third opening 117A disposed at the other end. The third opening 117 </ b> A is disposed on the outer surface 51 b side of the metal member main body 51. The third openings 116A and 117A are exposed on the same outer surface 51b.

The U-shaped tube 113 has one end 113A and the other end 113B. The one end 113A is connected (joined) to the third opening 116A of the through channel 116. The other end 113B is connected (joined) to the third opening 117A of the through channel 117.
For example, the U-shaped tube 113 may be made of the same metal material as that of the metal member main body 51.

  In this way, by configuring the U-shaped tube 113 with the same metal material as that of the metal member main body 51, the same metal material is bonded when the metal member main body 51 and the U-shaped tube 113 are bonded. Thereby, since a different metal contact corrosion does not generate | occur | produce, the U-shaped pipe 113 and a metal member main body can be joined in a favorable state.

According to the cooling device 110 of the fourth embodiment, the refrigerant flow path 115 is constituted by only the through flow paths 116 and 117, whereby the refrigerant flow paths 56, 99, and 108 (FIGS. 2, 7, and FIG. Compared with the case of processing No. 8), it can be processed easily.
Moreover, the long refrigerant | coolant flow path 115 can be provided using the metal member main body 51 made into the same magnitude | size as the cooling device 34 of 1st Embodiment.

  Note that the cooling device 110 of the fourth embodiment can obtain the same effects as the cooling device 34 of the first embodiment.

(Fifth embodiment)
FIG. 12 is a view showing a cooling device according to the fifth embodiment of the present invention. 12, the same components as those shown in FIGS. 2 and 7 are denoted by the same reference numerals.

  Referring to FIG. 12, the cooling device 120 of the fifth embodiment includes a metal member 121 and two U-shaped tubes 113 instead of the metal member 96 constituting the cooling device 95 of the second embodiment. Except having, it is comprised similarly to the cooling device 95. FIG.

  The metal member 121 is a metal except that it has a refrigerant channel 123 longer than the refrigerant channel 99 instead of the refrigerant channel 99 constituting the metal member 96 described in the second embodiment. The configuration is the same as that of the manufacturing member 96.

The coolant channel 123 has through channels 124 to 125 (a plurality of through channels) that penetrate the metal member body 51 in the Y direction.
The through flow path 124 includes a first opening 52 disposed on the outer surface 51b side and a third opening 124A disposed on the outer surface 51a side. The third opening 124A is connected (joined) to one end 113A of one U-shaped tube 113.

The through flow path 125 includes a third opening 125A disposed on the outer surface 51a side and a third opening 125B disposed on the outer surface 51b side. The third opening 125A is connected (joined) to the other end 113B of one U-shaped tube 113. The third opening 125B is connected (joined) to one end 113A of the other U-shaped tube 113.
The through flow passage 126 includes a second opening 54 disposed on the outer surface 51a side and a third opening 126A disposed on the outer surface 51b side. The third opening 126A is connected (joined) to the other end 113B of the other U-shaped tube 113.

Like the cooling device 120 of the fifth embodiment described above, the refrigerant passage 123 is constituted by the three through passages 124 to 125, and 1 is provided on both sides (the outer surface 51 a and the outer surface 51 b) of the metal member main body 51. Two U-shaped tubes 113 may be provided.
The cooling device 120 according to the fifth embodiment having such a configuration can obtain the same effects as those of the second and fourth cooling devices 95 and 110.

(Sixth embodiment)
FIG. 13 is a view showing a cooling device according to the sixth embodiment of the present invention. In FIG. 13, the same components as those in the structures shown in FIGS. 2 and 8 are denoted by the same reference numerals.

  Referring to FIG. 13, the cooling device 130 of the sixth embodiment replaces the metal member 106 constituting the cooling device 105 of the third embodiment, and includes a metal member 131 and three U-shaped tubes 113-. Except having 1-113-3, it is comprised similarly to the cooling device 105. FIG.

  The metal member 131 is a metal except that it has a refrigerant flow path 133 that is longer than the refrigerant flow path 108 in place of the refrigerant flow path 108 constituting the metal member 106 described in the third embodiment. The configuration is the same as that of the manufacturing member 106.

  The refrigerant flow path 133 has through flow paths 135 to 138 (a plurality of through flow paths) that penetrate the metal member main body 51 in the Y direction. The through channels 135 to 138 are arranged at a predetermined interval in the X direction.

The through flow path 135 has a first opening 52 disposed on the outer surface 51a side and a third opening 135A disposed on the outer surface 51b side. The third opening 135A is connected (joined) to one end 113-1A of the U-shaped tube 113-1.
The through channel 136 includes a third opening 136A disposed on the outer surface 51b side and a third opening 136B disposed on the outer surface 51a side. The third opening 136A is connected (joined) to the other end 113-1B of the U-shaped tube 113-1. The third opening 136B is connected (joined) to one end 113-2A of the U-shaped tube 113-2.

The through flow path 137 includes a third opening 137A disposed on the outer surface 51b side and a third opening 137B disposed on the outer surface 51a side. The third opening 137A is connected (joined) to one end 113-3A of the U-shaped tube 113-3. The third opening 137B is connected (joined) to the other end 113-2B of the U-shaped tube 113-2.
The through flow path 138 includes a third opening 138A disposed on the outer surface 51b side, and a second opening 54 disposed on the outer surface 51a side. The third opening 138A is connected (joined) to the other end 113-3B of the U-shaped tube 113-3.
The U-shaped tubes 113-1 to 113-3 can be made of the same metal material as that of the metal member main body 51, for example.

Like the cooling device 130 according to the sixth embodiment described above, the refrigerant flow path 133 is configured by the four through flow paths 135 to 138, so that the refrigerant flow path 133 is longer than the refrigerant flow path 123 illustrated in FIG. The length can be increased.
The cooling device 130 of the sixth embodiment having such a configuration can obtain the same effects as the fourth cooling device 110.

(Seventh embodiment)
FIG. 14 is a view showing a cooling device according to the seventh embodiment of the present invention. In FIG. 14, the same components as those in the structure shown in FIG.
FIG. 15 is a diagram schematically illustrating a state where the U-shaped tube and the metal member illustrated in FIG. 14 are separated from each other. In FIG. 15, the same components as those of the structure shown in FIG.
FIG. 16 is a diagram schematically showing a stage before the U-shaped pipe shown in FIG. 15 is expanded. In FIG. 16, the same components as those in the structure shown in FIG.

  14 to 16, the cooling device 140 according to the seventh embodiment includes a first connection pipe 46, a second connection pipe 47, and a U-shape that constitute the cooling device 110 according to the fourth embodiment. The configuration is the same as that of the cooling device 110 except that a U-shaped pipe 142 is provided instead of the pipe 113.

The U-shaped pipe 142 has a first straight tube portion 144, a second straight tube portion 145, and a U-shaped tube portion 146.
One end of each of the first and second straight tube portions 144 and 145 is formed integrally with the U-shaped tube portion 146.
The first straight pipe portion 144 extends in the Y direction and is expanded in diameter after being inserted into the through flow path 116. The first straight pipe portion 144 is in diameter contact with the metal member main body 51 that defines the through flow passage 116 by expanding the diameter. The other end of the first straight pipe portion 144 is connected to the first refrigerant pipe 32A.

  The second straight tube portion 145 extends in the Y direction and is expanded in diameter after being inserted into the through flow channel 117. The second straight tube portion 145 is in diameter contact with the metal member main body 51 that partitions the through flow passage 117 by being expanded in diameter. The other end of the second straight pipe portion 145 is connected to the second refrigerant pipe 32B.

The U-shaped tube portion 146 connects the first straight tube portion 144 and the second straight tube portion 145. In FIG. 14, as an example, the case where the U-shaped tube portion 146 is not expanded is not shown, but the U-shaped tube portion 146 may be expanded.
The U-shaped pipe 142 having the above-described configuration may be made of, for example, a metal material having a high thermal conductivity and the same metal material as the metal member body 51.
As the metal material of the U-shaped pipe 142, for example, aluminum is preferable.

  In the cooling device 140 according to the seventh embodiment, the outer peripheral surfaces of the first and second straight pipe portions 144 and 145 come into contact with the surface of the metal member main body 51 that defines the through channels 116 and 117. An effect similar to that of the cooling device 34 of the first embodiment described above can be obtained.

Next, a method for mounting the first and second straight pipe portions 144 and 145 in the through channels 116 and 117 will be described.
First, a U-shaped pipe 142 before diameter expansion shown in FIG. 16 is prepared. At this stage, the outer diameters of the first and second straight tube portions 144 and 145 are configured to be smaller than the inner diameters of the through channels 116 and 117. That is, when the first and second straight pipe portions 144 and 145 are inserted into the through channels 116 and 117, the surface of the metal member main body 51 that defines the through channels 116 and 117 and the first and second channels. A gap is formed between the straight pipe portions 144 and 145 and the outer peripheral surface.

Next, the first straight tube portion 144 is inserted into the through flow passage 116 formed in the metal member 111, and the second straight tube portion 145 is inserted into the through flow passage 117.
Then, the diameter expansion process of the 1st and 2nd straight pipe parts 144 and 145 is performed. As the diameter expansion method, for example, a mechanical tube expansion method using a tube expansion punch, a water pressure tube expansion method using water pressure, or the like is used.
Thereby, the outer peripheral surface of the 1st and 2nd straight pipe parts 144 and 145 and the surface of the metal member main body 51 which divides the penetration flow paths 116 and 117 contact.

  The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to such specific embodiments, and various modifications can be made within the scope of the gist of the present invention described in the claims. Deformation / change is possible.

  DESCRIPTION OF SYMBOLS 10,80,90 ... Refrigeration cycle apparatus, 11 ... Outdoor unit, 12 ... Gas side piping, 12A, 12B ... Branch gas side piping, 14A, 14B, 17A, 17B ... Branch device, 16 ... Liquid side piping, 16A, 16B ... branch liquid side pipe, 18, 19 ... indoor unit, 21 ... compressor, 22 ... discharge pipe, 23 ... four-way switching valve, 24, 26, 36 ... gas pipe, 25 ... outdoor heat exchanger, 27 ... outdoor expansion valve , 28 ... receiver, 29, 32 ... liquid piping, 31 ... suction piping, 26A, 29A, 32A ... first refrigerant pipe, 26B, 29B, 32B ... second refrigerant pipe, 33 ... cooling object, 34, 95 , 105, 110, 120, 130, 140 ... cooling device, 35 ... accumulator, 37 ... gas side operation valve, 39 ... liquid side operation valve, 41 ... outdoor fan, 45, 96, 106, 111, 121, 131 ... metal Made material, 46 97 ... first connecting pipe, 46A, 47A ... one end, 46B, 47B ... the other end, 47 ... second connecting pipe, 51 ... metal member body, 51a, 51b ... outer surface, 52 ... first 1 opening, 54 ... second opening, 56, 99, 108, 115, 123, 133 ... refrigerant flow path, 58, 61 ... connection portion, 59 ... first moisture suppressing member, 62 ... second Moisture suppression member, 71 ... indoor heat exchanger, 72 ... indoor expansion valve, 74 ... indoor fan, 113, 113-1, 113-2, 13-3 ... U-tube, 113A, 113-1A, 113-2A, 113-3A ... one end, 113B, 113-1B, 113-2B, 113-3B ... the other end, 116, 117, 124 to 126, 135 to 138 ... a through channel, 116A, 117A, 124A, 125A, 125B 126A, 135A, 36A, 136B, 137A, 137B, 138A ... third opening, 142 ... U-shaped pipe, 144 ... first straight tube portion, 145 ... second straight pipe portion, 146 ... U-shaped tube portion

Claims (7)

A cooling device that cools the object to be cooled by exchanging heat between the object to be heated that is stored in the control box and the refrigerant that circulates in the refrigeration cycle apparatus,
A metal member body;
A pair of openings provided in the metal member main body in a state exposed from the outer surface of the metal member main body, and functioning as an inlet / outlet of the refrigerant;
A refrigerant channel that is installed in the metal member body in a state connected to the pair of openings, and through which the refrigerant flows;
Including a metal member having
The cooling device, wherein a portion of the metal member main body that divides the refrigerant flow path is in contact with the refrigerant. The pair of openings includes a first opening and a second opening,
A first connecting pipe made of the same metal material as the metal member main body and made of a metal material different from the first refrigerant pipe constituting the refrigeration cycle apparatus;
A second connection pipe made of the same metal material as the metal member main body and made of a metal material different from the second refrigerant pipe constituting the refrigeration cycle apparatus;
Including
The first connection pipe has one end connected to the first opening and the other end connected to the first refrigerant pipe.
2. The cooling device according to claim 1, wherein one end of the second connection pipe is connected to the second opening and the other end is connected to the second refrigerant pipe. The refrigerant flow path has a plurality of through flow paths that penetrate the metal member body in a predetermined direction,
The through channel is provided in the metal member main body, and includes a third opening disposed at an end so as to be exposed from the outer surface of the metal member main body,
The cooling device according to claim 1, further comprising a U-shaped tube connected to the two third openings provided at adjacent positions.   The cooling device according to claim 3, wherein the U-shaped tube is made of the same metal material as the metal member main body. A first moisture suppression member that covers a connection portion between the first connection pipe and the first refrigerant pipe;
A second moisture suppression member that covers a connection portion between the second connection pipe and the second refrigerant pipe;
The cooling device according to any one of claims 2 to 4, wherein the cooling device is included. An outdoor unit including the cooling device according to any one of claims 1 to 5,
An indoor unit connected to the outdoor unit in a state where the refrigerant flowing in the outdoor unit can be introduced and led out; and
A refrigeration cycle apparatus comprising: A method of manufacturing a cooling device including a metal member that cools the object to be cooled by heat exchange between the object to be cooled and heat generated in the control box and the refrigerant,
The metal member body is internally provided with a first opening and a second opening serving as an entrance and exit of the refrigerant, and the first opening and the second opening. Forming a refrigerant flow path to obtain the metal member;
Bonding a first connecting pipe made of the same metal material as the metal member body to the first opening;
Bonding a second connecting pipe made of the same metal material as the metal member body to the second opening;
The manufacturing method of the cooling device characterized by including this.

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