JP6708564B2 - Cooling structure - Google Patents

Description

The present invention relates to a cooling structure.

Patent Document 1 discloses a cooling structure in which cooling tubes are arranged at predetermined intervals, a pair of headers are provided at both ends of the cooling tubes, and a semiconductor module (heating component) is arranged between adjacent cooling tubes. There is. In this cooling structure, a recess that is deformable in the arrangement direction of the cooling tubes is formed between the connection portions of the header and the cooling tubes.

Japanese Patent No. 5556680

In the cooling structure of Patent Document 1, the recess formed in the header is deformed, so that the semiconductor modules can be arranged between the adjacent cooling tubes even if the thickness of each semiconductor module is different. However, when a plurality of cooling tubes and a plurality of semiconductor modules are assembled into an assembly, the position of the end of each cooling tube may not be a fixed position (variation may occur) due to manufacturing error. In this case, the positions of the plurality of insertion openings formed in the header and the ends of each cooling tube do not match, which may cause a problem such as difficulty in insertion.

In consideration of the above facts, the present invention, in a configuration in which an assembly in which heat-generating components are arranged between adjacent coolers and a manifold are connected to each other, even if the positions of the piping parts of the respective coolers vary. An object is to provide a cooling structure in which manifolds can be easily connected.

The cooling structure according to the first aspect of the present invention is arranged with a space in the first direction, and extends from the heat exchange section in a direction intersecting the first direction with the heat exchange section in which the refrigerant flows, and A plurality of coolers including a first pipe part communicating with the inside of the heat exchange part, and a second pipe part extending from the heat exchange part to the opposite side of the first pipe part and communicating with the inside of the heat exchange part, An assembly including a heat-generating component that is disposed between the heat exchange units adjacent to each other in the first direction and is in contact with the heat exchange unit, and a first flow path that extends in the first direction and through which the refrigerant flows And a first connection that is formed of an elastic material and that is provided with a plurality of first insertion ports into which the first piping portion is inserted, and that connects the inside of the first piping portion with the first flow path. And a second flow passage forming portion that extends in the first direction and forms a second flow passage through which the refrigerant flows, and is formed of an elastic material, and the second pipe portion is inserted. A second manifold provided with a plurality of second insertion ports and having a second connecting portion that communicates the inside of the second piping portion with the second flow path.

In the cooling structure of the first aspect, by inserting the first piping portions of the respective coolers of the assembly into the plurality of first insertion ports provided in the first connection portion of the first manifold, The first flow path communicates. Further, by inserting the second piping portion of each cooler of the assembly into the plurality of second insertion openings provided in the second connection portion of the second manifold, the inside of the second piping portion and the second flow path communicate with each other. To do. In this communication state, for example, when the refrigerant is supplied to the first manifold, the refrigerant flows from the first flow path into the heat exchange section through the first pipe section of the cooler. Then, the refrigerant flowing into the heat exchange section flows from the heat exchange section of the cooler through the second piping section into the second flow path, and is discharged from the second manifold. When the refrigerant flows as described above, heat is exchanged between the heat generating component and the refrigerant via the heat exchanging portion of the cooler, and the heat generating component is cooled.

Here, in the above cooling structure, since the first connection portion of the first manifold is made of an elastic material, the first insertion port can be elastically deformed. Therefore, in the above cooling structure, compared with the configuration in which the first insertion port cannot be elastically deformed, even if the position of the first piping portion of each cooler constituting the assembly varies, the first piping portion of each cooler Can be easily inserted into the first insertion opening.
Similarly, in the above cooling structure, since the second connection portion of the second manifold is formed of an elastic material, the second insertion port can be elastically deformed. For this reason, in the above cooling structure, as compared with the configuration in which the second insertion port cannot be elastically deformed, even if the position of the second piping portion of each cooler that constitutes the assembly varies, the second piping portion of each cooler is different. Can be easily inserted into the second insertion opening.
As described above, in the above cooling structure, the assembly and the manifold can be easily connected even when the positions of the piping parts of the respective coolers are varied.

A cooling structure according to a second aspect of the present invention is the cooling structure according to the first aspect, in which the first flow path forming section and the first connecting section are integrally formed of an elastic material, and the second flow path forming section and the The second connecting portion is integrally formed of an elastic material.

In the cooling structure of the second aspect, since the first flow path constituent part and the first connection part are integrally molded products of elastic material, for example, the first flow path constituent part and the first connection part are separated (separate parts). 2), the number of parts and the process for assembling the first flow path forming portion and the first connecting portion can be reduced.
Similarly, in the above cooling structure, since the second flow path forming part and the second connecting part are integrally molded products of elastic material, for example, the second flow path forming part and the second connecting part are separated (separate parts). 2), the number of parts and the steps for assembling the second flow path forming portion and the second connecting portion can be reduced.

A cooling structure according to a third aspect of the present invention is the cooling structure according to the first or second aspect, wherein the first manifold is arranged upstream of the cooler in a flow direction of the refrigerant, and the first flow path is provided. Is provided with a flow rate adjusting means for reducing the flow rate of the refrigerant on the downstream side of the upstream side in the flow direction of the refrigerant.

In the cooling structure of the third aspect, the first manifold is arranged upstream of the cooler in the flow direction of the refrigerant. That is, the refrigerant is configured to flow in the order of the first manifold, the cooler, and the second manifold. Here, in the above cooling structure, the first flow path of the first manifold is provided with the flow rate adjusting means for reducing the flow rate of the refrigerant on the downstream side of the upstream side in the refrigerant flow direction. Therefore, more refrigerant flows into the cooler located on the upstream side in the refrigerant flow direction than the cooler located on the downstream side in the refrigerant flow direction. That is, in the above cooling structure, as compared with the configuration in which the flow rate adjusting means is not provided in the first flow path, the heat-generating component contacting the cooler located on the upstream side in the refrigerant flow direction is located on the downstream side in the refrigerant flow direction. Cooling can be performed earlier than the heat-generating component in contact with the cooling device. For example, when the calorific value of the heat generating component in contact with the cooler located on the upstream side in the flow direction of the refrigerant is higher than the calorific value of the heat generating component in contact with the cooler located on the downstream side in the flow direction of the refrigerant, the cooling structure is set to By applying it, it is possible to efficiently cool the heat-generating component that contacts the cooler located on the upstream side in the refrigerant flow direction and the heat-generating component that contacts the cooler located on the downstream side in the refrigerant flow direction.

A cooling structure according to a fourth aspect of the present invention is the cooling structure according to the third aspect, wherein the flow rate adjusting means is provided in the first flow path, and the first flow is provided on a downstream side of an upstream side in a flow direction of the refrigerant. This is an area reduction unit that reduces the flow passage area of the passage.

In the cooling structure of the fourth aspect, the flow passage area of the first flow passage becomes smaller on the downstream side than the upstream side in the flow direction of the refrigerant due to the area reduction portion provided in the first flow passage. In the above cooling structure, the flow rate of the refrigerant can be reduced on the downstream side of the upstream side in the flow direction of the refrigerant in the first flow path with a simple configuration in which the area reduction portion that reduces the flow area is provided in the first flow path.

A cooling structure according to a fifth aspect of the present invention is the cooling structure according to the third aspect, wherein the flow rate adjusting means is a regulating valve that is provided in the first flow passage and adjusts an open area of the first flow passage.

In the cooling structure of the fifth aspect, when the opening area of the first flow passage is adjusted to be reduced by the adjustment valve provided in the first flow passage, the flow rate of the refrigerant on the downstream side of the upstream side in the flow direction of the refrigerant is reduced. Is reduced. In the above cooling structure, since the open area of the first flow path can be adjusted by the adjusting valve, the heat generation amount of the heat-generating component contacting the cooler located on the upstream side in the refrigerant flow direction and the cooling located on the downstream side in the refrigerant flow direction. The flow rate of the refrigerant flowing through the first flow path can be appropriately adjusted on the upstream side and the downstream side in the flow direction of the refrigerant according to the amount of heat generated by the heat-generating component in contact with the container.

A cooling structure according to a sixth aspect of the present invention is the cooling structure according to any one of the first to fifth aspects, in which an outer periphery of the first piping portion has an annular first protrusion along the circumferential direction. Are provided at intervals in the pipe axis direction, and a plurality of annular second protrusions are provided at the outer circumference of the second pipe portion along the circumferential direction at intervals in the pipe axis direction. 1 connection part is a 1st recessed part formed in the circumference|surroundings of the said 1st insertion opening, 1st fitting part formed in the inner peripheral surface of the said 1st insertion opening, and the said 1st protrusion part fits, The second connection portion is formed on a second recess formed around the second insertion opening and an inner peripheral surface of the second insertion opening, and the second projection is fitted with the second recess. And a fitting portion.

In the cooling structure of the sixth aspect, a plurality of annular first protrusions are provided on the outer periphery of the first piping portion at intervals in the pipe axial direction, and the first protrusions are fitted to the inner peripheral surface of the first insertion port. A mating first fitting portion is formed. Therefore, the first piping portion and the first insertion opening can be reliably connected by inserting the first piping portion into the first insertion opening until the first protrusion fits into the first fitting portion. .. Thereby, in the above cooling structure, for example, compared with a configuration in which the first protruding portion is not provided on the outer periphery of the first piping portion and the first fitting portion is not provided on the inner peripheral surface of the first insertion opening, the first piping is provided. The sealability between the portion and the first insertion opening is improved. Further, in the state where the first piping portion is inserted into the first insertion opening, the first protruding portion fits into the first fitting portion, so that the first piping portion is effectively suppressed from coming out of the first insertion opening. can do. Further, since the first concave portion is formed around the first insertion opening of the first connection portion, for example, as compared with the configuration in which the first concave portion is not formed around the first insertion opening, the insertion of the first piping portion is performed. The elastic deformation of the first insertion port due to can be absorbed by the first recess. Therefore, the sealing property between the first piping portion and the first insertion port is further improved.
Similarly, in the above cooling structure, a plurality of annular second protrusions are provided on the outer periphery of the second pipe portion at intervals in the pipe axial direction, and the second protrusion is fitted on the inner peripheral surface of the second insertion port. The 2nd fitting part which fits is formed. Therefore, by inserting the second piping portion into the second insertion opening until the second protrusion fits into the second fitting portion, the second piping portion and the second insertion opening can be reliably connected. .. Thereby, in the above cooling structure, for example, as compared with a configuration in which the second protrusion is not provided on the outer periphery of the second pipe portion and the second fitting portion is not provided on the inner peripheral surface of the second insertion port, the second pipe is provided. The sealability between the portion and the second insertion port is improved. Further, in the state where the second piping portion is inserted into the second insertion opening, the second protruding portion fits into the second fitting portion, so that the second piping portion is effectively suppressed from coming out of the second insertion opening. can do. Further, since the second concave portion is formed around the second insertion opening of the second connection portion, for example, as compared with the configuration in which the second concave portion is not formed around the second insertion opening, the insertion of the second piping portion is performed. The elastic deformation of the second insertion opening due to can be absorbed by the second recess. Therefore, the sealing property between the second piping portion and the second insertion port is further improved.

A cooling structure according to a seventh aspect of the present invention is the cooling structure according to any one of the first to sixth aspects, in which the first manifold is arranged upstream of the cooler in the flow direction of the refrigerant, A turbulent flow promoting body for disturbing the flow of the refrigerant flowing into the first pipe portion is provided in the first flow path.

In the cooling structure of the seventh aspect, the first manifold is arranged upstream of the cooler in the refrigerant flow direction. That is, the refrigerant is configured to flow in the order of the first manifold, the cooler, and the second manifold. Here, in the above cooling structure, since the turbulent flow promoting body for disturbing the flow of the refrigerant flowing into the first pipe portion is provided in the first flow path of the first manifold, the turbulent flow promoting member is provided from the first pipe portion to the inside of the heat exchange portion. Turbulent flow is promoted in the refrigerant flowing into. As described above, in the above cooling structure, since the turbulent flow promoting body is provided in the first flow path, for example, as compared with the configuration in which the turbulent flow promoting body is not provided in the first flow path, the turbulent flow in the heat exchange section is disturbed. The generation of the flow is promoted, and the heat exchange between the refrigerant in the heat exchange section and the heat generating component is effectively performed.

As described above, according to the present invention, in the configuration in which the assembly in which the heat-generating components are arranged between the adjacent coolers and the manifold are connected to each other, even if the positions of the piping portions of the respective coolers vary, It is possible to provide a cooling structure in which the manifold and the manifold can be easily connected.

It is a perspective view of the cooling device to which the cooling structure of the first embodiment is applied. FIG. 2 is an exploded perspective view of an assembly that constitutes the cooling structure shown in FIG. 1. FIG. 3 is a sectional view taken along line 3-3 of FIG. 1. It is a perspective view of the 1st manifold which comprises the cooling structure shown in FIG. It is the side view which looked at the 1st manifold shown in FIG. 4 from the 1st insertion port side. FIG. 6 is a sectional view taken along line 6-6 of FIG. 5. It is the side view which looked at the 1st manifold which constitutes the cooling structure of a 2nd embodiment from the 1st insertion slot side. FIG. 8 is a sectional view taken along line 8-8 of FIG. 7. It is the side view which looked at the modification of the 1st manifold which constitutes the cooling structure of a 2nd embodiment from the 1st insertion slot side. FIG. 10 is a sectional view taken along line 10-10 of FIG. 9. It is the side view which looked at the other modification of the 1st manifold which constitutes the cooling structure of a 2nd embodiment from the 1st insertion slot side. FIG. 12 is a sectional view taken along line 12-12 of FIG. 11. It is the side view which looked at the further another modification of the 1st manifold which constitutes the cooling structure of a 2nd embodiment from the 1st insertion slot side. FIG. 14 is a sectional view taken along line 14-14 of FIG. 13. It is sectional drawing (sectional view corresponding to FIG. 3) of the 1st manifold which comprises the cooling structure of 3rd Embodiment. It is sectional drawing (sectional view corresponding to FIG. 3) of the modification of the 1st manifold which comprises the cooling structure of 3rd Embodiment. It is sectional drawing (sectional view corresponding to FIG. 3) of the modification of the 2nd manifold which comprises the cooling structure of 3rd Embodiment. It is sectional drawing (sectional view corresponding to FIG. 3) of the 2nd manifold which comprises the cooling structure of 4th Embodiment. It is sectional drawing (sectional view corresponding to FIG. 3) of the 1st manifold which comprises the cooling structure of 5th Embodiment.

Hereinafter, a cooling structure according to an embodiment of the present invention will be described with reference to the drawings. In addition, arrow X, arrow Y, and arrow Z, which are illustrated in each drawing as appropriate, respectively indicate a device width direction, a device depth direction, and a device thickness direction of a cooling device to which a cooling structure is applied. This will be described as a vertical direction.

(First embodiment)
FIG. 1 shows a cooling device 20 to which a cooling structure 22 of the first embodiment (hereinafter, this embodiment) is applied. The cooling device 20 is used, for example, to cool a heat-generating component (object to be cooled) 36 such as a CPU or a power semiconductor element. Specifically, the cooling device 20 cools the heat-generating component 36 by transferring the heat of the heat-generating component 36 that forms the assembly 30 described later to the refrigerant in the cooler 32.

As shown in FIG. 1, the cooling device 20 of the present embodiment is for supplying the refrigerant L to the assembly 30, the inlet side manifold 40, the outlet side manifold 50, and the inlet side manifold 40 that constitute the cooling structure 22. A supply pipe 24 (shown by a chain double-dashed line in FIG. 1) and a discharge pipe 26 (shown by a chain double-dashed line in FIG. 1) for discharging the refrigerant L from the outlet-side manifold 50 are provided.

As described above, the cooling structure 22 of this embodiment includes the assembly 30, the inlet side manifold 40, and the outlet side manifold 50.

(Assembly 30)
As shown in FIGS. 1 and 2, the assembly 30 includes a plurality of coolers 32 arranged at intervals in a first direction (the same direction as the device depth direction in the present embodiment), and a first direction. And a heat-generating component 36 that is disposed between heat exchangers 33 to be described later of the cooler 32 adjacent to the heat exchanger and that contacts the heat exchanger 33. In other words, the assembly 30 is formed by alternately stacking the plurality of coolers 32 and the plurality of heat-generating components 36 in the first direction (in the present embodiment, the device depth direction).

The cooler 32 includes the above-mentioned heat exchange section 33 through which the refrigerant L flows, the inlet side piping section 34 extending from the heat exchange section 33 in a direction intersecting the first direction, and the heat exchange section 33 to the inlet side piping section 34. And an outlet-side pipe portion 35 extending to the opposite side.

The heat exchange section 33 has a substantially plate shape, and the inside thereof constitutes a flow path of the refrigerant L. Further, inside the heat exchange unit 33, fins (not shown) (for example, corrugated fins) or the like are provided to enhance cooling performance. Further, the heat generating component 36 is in contact with the heat transfer surface 33A which is the plate surface of the heat exchange section 33.

The inlet pipe section 34 has a cylindrical shape and communicates with the inside of the heat exchange section 33. Further, the inlet side piping portion 34 can be inserted into an inlet side insertion port 48 of the inlet side manifold 40 described later. When the inlet side piping portion 34 is inserted into the inlet side insertion opening 48 of the inlet side manifold 40, the refrigerant L flows from the inlet side manifold 40 into the heat exchange section 33 through the inlet side piping portion 34. There is.

The outlet pipe portion 35 has a cylindrical shape and communicates with the inside of the heat exchange portion 33. Further, the outlet piping portion 35 can be inserted into an outlet insertion port 58 of the outlet manifold 50, which will be described later. When the outlet side pipe portion 35 is inserted into the outlet side insertion port 58 of the outlet side manifold 50, the refrigerant L in the heat exchange portion 33 comes to flow out to the outlet side manifold 50 via the outlet side pipe portion 35. There is.

Further, the cooler 32 of this embodiment is an integrally molded product using a metal material (for example, aluminum or copper).

The heat generating component 36 is fixed to the heat transfer surface 33A of the heat exchanger 33 of the cooler 32 while being in contact with the heat transfer surface 33A. Specifically, both surfaces of the heat generating component 36 in the thickness direction are fixed to the heat exchange portions 33 adjacent to each other in the first direction. With this configuration, the heat generating component 36 is cooled by the heat exchanging portions 33 of the adjacent coolers 32 from both sides in the thickness direction. From the viewpoint of heat transfer, it is preferable to fix the heat generating component 36 and the heat exchange part 33 of the cooler 32 by brazing or mechanical joining (joining using a fastening member such as a screw). ..

(Inlet side manifold 40)
As shown in FIGS. 3 to 6, the inlet side manifold 40 has an inlet side passage forming portion 42 that constitutes an inlet side passage 44 through which the refrigerant L flows, and an inlet side insertion portion into which the inlet side pipe portion 34 is inserted. The inlet side connection portion 46 having a plurality of ports 48 is provided. The inlet side manifold 40 of the present embodiment is an example of the first manifold of the present invention. In addition, the inlet side flow path component 42, the inlet side flow path 44, the inlet side connection part 46, and the inlet side insertion port 48 of the present embodiment are respectively the first flow path component portion, the first flow path portion, and the first flow path portion of the present invention. It is an example of 1 connection part and a 1st insertion slot.

As shown in FIG. 3 and FIG. 6, the inlet-side flow channel forming portion 42 has a substantially rectangular parallelepiped shape whose longitudinal direction is the device depth direction which is the first direction, and the inlet-side flow channel extending inside in the first direction. 44 are formed. The inlet-side flow passage 44 has one end that opens at one end in the longitudinal direction of the inlet-side flow passage constituent portion 42 and the other end that terminates in the inlet-side passage constituent portion 42. It should be noted that one end of the inlet side flow passage 44 constitutes a connection port 44A for connecting the inlet side flow passage 44 and the supply pipe 24.

The inlet-side connection portion 46 is formed adjacent to the inlet-side flow channel constituent portion 42 in a direction orthogonal to the first direction (a lateral direction of the inlet-side flow channel constituent portion 42) and has an inlet-side insertion port 48. A plurality of them are provided at intervals in the first direction. As shown in FIGS. 4 and 5, this inlet side insertion port 48 is a circular hole (a through hole having a circular cross section) provided in the inlet side connection portion 46, and communicates with the inlet side flow passage 44. .. That is, by inserting the inlet-side piping portion 34 of the cooler 32 into the inlet-side insertion port 48 of the inlet-side connecting portion 46, the inside of the inlet-side piping portion 34 and the inlet-side flow passage 44 are communicated with each other. .. Further, in a state in which the inlet side piping portion 34 is inserted into the inlet side insertion opening 48, the outer peripheral surface of the inlet side piping portion 34 is configured to be in close contact with the inner peripheral surface of the inlet side insertion opening 48. The sealing property between the port 48 and the inlet side piping portion 34 is ensured.

In addition, the inlet-side flow path forming portion 42 and the inlet-side connecting portion 46 are integrally molded products made of the same elastic material (for example, rubber or resin having excellent sealing properties). Note that the present invention is not limited to the above-described configuration, and the inlet side flow channel constituent portion 42 and the inlet side connection portion 46 may be integrally molded with different elastic materials, or the inlet side flow channel constituent portion 42 may be made of an elastic material. Alternatively, the inlet side flow path forming portion 42 may be formed of a metal material.

Further, the inlet side manifold 40 is provided with a plurality of leg portions 49 on the lower surface of the inlet side flow path forming portion 42 at intervals in the first direction. In the present embodiment, the inlet side manifold 40, including the inlet side flow path forming portion 42, the inlet side connecting portion 46 and the leg portion 49, is an integrally molded product of an elastic material. The present invention is not limited to the above-described configuration, and the inlet side flow path component 42 and the inlet side connection part 46 and the leg portion 49 may be integrally molded with different elastic materials, or the inlet side flow path component part. 42 and the inlet-side connecting portion 46 may be formed of an elastic material, and the leg portions 49 may be formed of a metal material.

(Outlet manifold 50)
As shown in FIG. 3, the outlet side manifold 50 includes an outlet side channel forming portion 52 forming an outlet side passage 54 through which the refrigerant L flows, and an outlet side insertion port 58 into which the outlet side pipe portion 35 is inserted. And a plurality of outlet-side connecting portions 56 provided. The outlet manifold 50 of the present embodiment is an example of the second manifold of the present invention. Further, the outlet-side flow channel component 52, the outlet-side channel 54, the outlet-side connector 56, and the outlet-side insertion port 58 of this embodiment are the second channel component, the second channel, and the second channel of the present invention, respectively. It is an example of a 2 connection part and a 2nd insertion slot.

As shown in FIG. 1 and FIG. 3, the outlet-side flow channel forming portion 52 is formed into a substantially rectangular parallelepiped shape whose longitudinal direction is the device depth direction which is the first direction, and the outlet-side flow channel extending inside in the first direction. 54 is formed. One end of the outlet-side flow passage 54 opens at one end in the longitudinal direction of the outlet-side flow passage constituent portion 52, and the other end terminates in the outlet-side flow passage constituent portion 52. It should be noted that one end of the outlet-side flow passage 54 constitutes a connection port 54A for connecting the outlet-side flow passage 54 and the discharge pipe 26.

The outlet-side connecting portion 56 is formed adjacent to the outlet-side flow channel constituent portion 52 in a direction orthogonal to the first direction (a lateral direction of the outlet-side flow channel constituent portion 52), and has a outlet-side insertion port 58. A plurality of them are provided at intervals in the first direction. As shown in FIG. 3, the outlet side insertion port 58 is a circular hole (a through hole having a circular cross section) provided in the outlet side connection portion 56 and communicates with the outlet side flow passage 54. That is, by inserting the outlet side piping portion 35 of the cooler 32 into the outlet side insertion port 58 of the outlet side connecting portion 56, the inside of the outlet side piping portion 35 and the outlet side flow passage 54 are made to communicate with each other. .. Further, when the outlet pipe portion 35 is inserted into the outlet insertion port 58, the outer peripheral surface of the outlet pipe portion 35 is configured to be in close contact with the inner peripheral surface of the outlet insertion port 58. The sealing property between the port 58 and the outlet piping portion 35 is ensured.

Further, the outlet side flow path forming portion 52 and the outlet side connecting portion 56 are integrally molded products of the same elastic material (for example, rubber or resin having excellent sealing properties). Note that the present invention is not limited to the above-described configuration, and the outlet side flow channel forming portion 52 and the outlet side connecting portion 56 may be integrally molded with different elastic materials, or the outlet side flow channel forming portion 52 may be formed of an elastic material. Alternatively, the outlet side flow path forming portion 52 may be formed of a metal material.

Further, the outlet side manifold 50 is provided with a plurality of legs 59 on the lower surface of the outlet side flow path forming portion 52 at intervals in the first direction. In the present embodiment, the outlet side manifold 50 is an integrally molded product of an elastic material, including the outlet side flow path forming portion 52, the outlet side connecting portion 56 and the leg portion 59. Note that the present invention is not limited to the above-described configuration, and the outlet side flow path forming portion 52 and the outlet side connecting portion 56, and the leg portion 59 may be integrally molded of different elastic materials, or the output side flow path forming portion. The configuration may be such that 52 and the outlet-side connecting portion 56 are made of an elastic material and the leg portions 59 are made of a metal material.

Next, the function and effect of the cooling structure 22 of this embodiment will be described.
In the cooling structure 22, by inserting the inlet side piping portions 34 of the respective coolers 32 configuring the assembly 30 into the plurality of inlet side insertion ports 48 provided in the inlet side connection portion 46 of the inlet side manifold 40, respectively, The inside of the inlet pipe section 34 and the inlet flow path 44 communicate with each other. Further, by inserting the outlet-side piping portion 35 of each cooler 32 that constitutes the assembly 30 into the plurality of outlet-side insertion ports 58 provided in the outlet-side connecting portion 56 of the outlet-side manifold 50, the outlet-side piping The inside of the portion 35 and the outlet flow path 54 communicate with each other. In this communication state, as shown in FIG. 3, when the refrigerant L is supplied from the supply pipe 24 to the inlet side flow path 44 of the inlet side manifold 40, the refrigerant L flows from the inlet side flow path 44 into the inlet side pipe of the cooler 32. It flows into the heat exchange section 33 through the section 34. Then, the refrigerant L that has flowed into the heat exchange section 33 flows from the heat exchange section 33 through the output side piping section 35 into the output side flow path 54, and is discharged from the output side manifold 50. As the refrigerant L flows as described above, heat is exchanged between the heat generating component 36 and the refrigerant L via the heat exchanging portion 33 of the cooler 32, and the heat generating component 36 is cooled.

Here, in the cooling structure 22, since the inlet side connecting portion 46 of the inlet side manifold 40 is formed of an elastic material, the inlet side insertion port 48 can be elastically deformed. For this reason, in the cooling structure 22, as compared with the configuration in which the inlet side insertion port 48 cannot be elastically deformed, even if the positions of the inlet side piping portions 34 of the respective coolers 32 constituting the assembly 30 are different, The inlet side piping portion 34 can be easily inserted into the inlet side insertion port 48.
Similarly, in the cooling structure 22, the outlet-side connecting portion 56 of the outlet-side manifold 50 is made of an elastic material, so that the outlet-side insertion port 58 can be elastically deformed. Therefore, in the cooling structure 22, as compared with the structure in which the outlet insertion port 58 cannot be elastically deformed, the respective coolers even if the positions of the outlet pipe portions 35 of the respective coolers 32 constituting the assembly 30 are varied. The outlet pipe portion 35 of 32 can be easily inserted into the outlet insertion port 58.
As described above, in the cooling structure 22, even if the positions of the piping portions (including the inlet piping portion 34 and the outlet piping portion 35) of the respective coolers 32 vary, the assembly 30 and the manifold (the inlet manifold 40). And the outlet-side manifold 50).

In addition, in the cooling structure 22, since the inlet-side flow channel constituent portion 42 and the inlet-side connection portion 46 are integrally molded with an elastic material, for example, the inlet-side flow channel constituent portion 42 and the inlet-side connection portion 46 are separated. Compared with the configuration of (separate component), the number of components and the process for assembling the inlet side flow path forming portion 42 and the inlet side connecting portion 46 can be reduced.
Similarly, in the above-described cooling structure, since the outlet-side flow passage constituent portion 52 and the outlet-side connection portion 56 are integrally molded with an elastic material, for example, the outlet-side flow passage constituent portion 52 and the outlet-side connection portion 56 are separated. Compared to the configuration of a body (separate component), the number of components and the process for assembling the outlet side flow path forming portion 52 and the outlet side connecting portion 56 can be reduced.

(Second embodiment)
The cooling structure 62 of 2nd Embodiment is shown by FIG.7 and FIG.8. In the cooling structure 62 of the present embodiment, the configuration of the inlet side piping portion 66 and the outlet side piping portion 68 of the cooler 64, the configuration of the inlet side connecting portion 72 of the inlet side manifold 70, and the outlet side connection of the outlet side manifold 80. The configuration of the portion 82 is different from that of the cooling structure 22 of the first embodiment, and the other configurations are the same as those of the cooling structure 22. Therefore, the description of the same configuration as the cooling structure 22 will be omitted. The same components as those in the first embodiment are designated by the same reference numerals.

As shown in FIG. 8, an annular protrusion 67 is provided along the circumferential direction (circumferential direction) on the outer circumference of the cylindrical inlet-side piping portion 66 that constitutes the cooler 64, and is spaced in the pipe axial direction. A plurality (two in this embodiment) are provided apart from each other. These protrusions 67 are formed by pushing the inner circumference of the inlet side pipe portion 66 outward in the pipe radial direction.

Further, a plurality of annular projections 69 are provided along the circumferential direction (circumferential direction) on the outer circumference of the cylindrical outlet side piping portion 68 that constitutes the cooler 64, with a plurality of intervals (in the present embodiment) being provided in the pipe axial direction. Two in the form) are provided. These protrusions 69 are formed by pushing the inner circumference of the outlet side pipe portion 68 outward in the pipe radial direction.

As shown in FIGS. 7 and 8, a recess 76 is formed around the inlet insertion port 74 formed in the inlet connection portion 72 that constitutes the inlet manifold 70. Specifically, as shown in FIG. 7, a plurality of recesses 76 (four in this embodiment) are formed at equal intervals around the inlet insertion port 74. Due to this recess 76, the insertion side insertion port 74 is formed in a substantially cylindrical shape.

In addition, a fitting portion 78 into which the protrusion 67 is fitted is formed on the inner peripheral surface of the inlet insertion port 74. Specifically, the fitting portion 78 is provided on the tip side of the entry side piping portion 66 in a state where the projection 67 provided on the back side (the side opposite to the tip side) of the entry side piping portion 66 is fitted. The protruding portion 67 is formed on the inner peripheral surface of the inlet insertion port 74 so that the protruding portion 67 is located in the inlet flow path 44.

On the other hand, a recess 86 is formed around the outlet insertion opening 84 formed in the outlet connection portion 82 that constitutes the outlet manifold 80. Specifically, as shown in FIG. 7, a plurality of recesses 86 (four in this embodiment) are formed around the exit insertion port 84 at equal intervals. Due to this recess 86, the outlet insertion port 84 is formed in a substantially cylindrical shape.

Further, a fitting portion 88 into which the protrusion 69 is fitted is formed on the inner peripheral surface of the outlet insertion opening 84. Specifically, the fitting portion 88 is provided on the tip end side of the outlet side pipe portion 68 in a state where the protrusion 69 provided on the back side (opposite side to the tip end side) of the outlet side pipe portion 68 is fitted. The protruding portion 69 is formed on the inner peripheral surface of the outlet insertion port 84 so as to be located in the outlet passage 54.

Next, the function and effect of the cooling structure 62 of this embodiment will be described. Note that the description of the same operational effects as those obtained in the first embodiment will be appropriately omitted.

In the cooling structure 62 of the present embodiment, a plurality of annular protrusions 67 are provided on the outer circumference of the inlet side piping portion 66 at intervals in the pipe axis direction, and the protrusion 67 is provided on the inner peripheral surface of the inlet side insertion port 74. A fitting portion 78 for fitting is formed. Therefore, the inlet side piping portion 66 is inserted into the inlet side insertion opening 74 until the protrusion 67 fits into the fitting portion 78, thereby reliably connecting the inlet side piping portion 66 and the inlet side insertion opening 74. You can As a result, in the cooling structure 62, for example, as compared with the configuration in which the protrusion 67 is not provided on the outer periphery of the inlet side pipe portion 66 and the fitting portion 78 is not provided on the inner peripheral surface of the inlet side insertion port 74. The sealing property between the portion 66 and the inlet insertion port 74 is improved. Further, in the state where the inlet side piping portion 66 is inserted into the inlet side insertion opening 74, the protrusion 67 fits into the fitting portion 78, so that the inlet side piping portion 66 is effectively prevented from coming out of the inlet side insertion opening 74. Can be suppressed to. In particular, in the present embodiment, since the protrusion 67 provided on the tip side of the inlet-side piping portion 66 is located in the inlet-side flow path 44, this protrusion 67 is used for the inlet-side flow of the inlet-side insertion port 74. It is possible to more effectively suppress the entry side piping portion 66 from being caught in the opening edge portion on the path 44 side and coming out of the entry side insertion opening 74. Further, since the concave portion 76 is formed around the inlet side insertion opening 74 of the inlet side connection portion 72, for example, as compared with the configuration in which the concave portion 76 is not formed around the inlet side insertion opening 74, the inlet side piping portion 66. The concave portion 76 can absorb the elastic deformation of the inlet side insertion port 74 due to the insertion of the. For this reason, the sealing property between the inlet side piping portion 66 and the inlet side insertion port 74 is further improved.

Similarly, in the cooling structure 62, a plurality of annular projections 69 are provided on the outer periphery of the outlet side piping portion 68 at intervals in the pipe axial direction, and the protrusions 69 are provided on the inner peripheral surface of the outlet side insertion opening 84. A fitting portion 88 for fitting is formed. Therefore, by inserting the outlet side piping portion 68 into the outlet side insertion opening 84 until the protrusion 69 fits into the fitting portion 88, the outlet side piping portion 68 and the outlet side insertion opening 84 can be reliably connected. You can As a result, in the cooling structure 62, for example, as compared with the configuration in which the protrusion 69 is not provided on the outer circumference of the outlet piping portion 68 and the fitting portion 88 is not provided on the inner peripheral surface of the outlet insertion port 84, the outlet piping is provided. The sealing property between the portion 68 and the outlet insertion opening 84 is improved. Further, in the state in which the outlet side pipe portion 68 is inserted into the outlet side insertion port 84, the protrusion 69 fits into the fitting portion 88, so that the outlet side pipe portion 68 is effectively prevented from coming out of the outlet side insertion port 84. Can be suppressed to. In particular, in the present embodiment, since the protrusion 69 provided on the tip side of the outlet pipe portion 68 is located in the outlet flow path 54, the protrusion 69 causes the outlet flow of the outlet insertion port 84. It is possible to more effectively prevent the outlet pipe portion 68 from being caught in the opening edge portion on the side of the passage 54 and coming out of the outlet insertion opening 84. Further, since the recessed portion 86 is formed around the delivery side insertion opening 84 of the delivery side connection portion 82, for example, as compared with the configuration in which the recessed portion 86 is not formed around the delivery side insertion opening 84, the delivery side piping portion 68. The recessed portion 86 can absorb the elastic deformation of the outlet insertion opening 84 due to the insertion of the. Therefore, the sealing property between the outlet side pipe portion 68 and the outlet side insertion port 84 is further improved.

In the inlet-side manifold 70 of the second embodiment, the fitting portion 78 is provided on the tip side of the inlet-side piping portion 66 in a state where the protrusion 67 provided on the back side of the inlet-side piping portion 66 is fitted. The protrusion 67 is formed on the inner peripheral surface of the inlet insertion port 74 so that the protrusion 67 is located in the inlet flow path 44, but the present invention is not limited to this configuration. For example, like the inlet-side manifold 92 of the modification shown in FIGS. 9 and 10, the fitting portion 93 into which the plurality (two) of the protrusions 67 provided in the inlet-side piping portion 66 are fitted is inserted-side. A plurality (two) may be formed on the inner peripheral surface of the mouth 74. With this configuration, it is possible to suppress the movement of the inlet side pipe portion 66 in the pipe axis direction when the inlet side pipe portion 66 is inserted into the inlet side insertion port 74. As a result, it is possible to secure the sealing property between the inlet side piping portion 66 and the inlet side insertion port 74. Further, in the inlet-side manifold 92 of the modified example, an annular recess 94 is formed between the fitting portions 93 on the inner peripheral surface of the inlet-side insertion port 74. The recessed portion 94 facilitates elastic deformation of the inlet insertion port 74 in the radial direction. Therefore, it is easy to insert the inlet side piping portion 66 into the inlet side insertion port 74. Further, like the inlet side manifold 102 of another modified example shown in FIGS. 11 and 12, an annular recess 104 between the fitting portion 78 of the inlet side insertion port 74 and the opening of the inlet side flow passage 44. May be formed. Further, like the inlet-side manifold 112 of still another modification shown in FIGS. 13 and 14, the recesses 114 are formed around the opening of the inlet-side flow passage 44 of the inlet-side insertion port 74 at circumferential intervals. Good. By forming the recess 114 in this way, at least a part of the opening edge portion of the inlet-side flow path 44 of the inlet-side insertion port 74 is reduced in the diameter reducing direction against the force in the withdrawal direction that acts on the inlet-side piping portion 66. It becomes deformable, so that the protrusion 67 on the tip end side of the inlet side pipe portion 66 is more effectively prevented from coming off.

Further, in the outlet side manifold 80 of the second embodiment, the fitting portion 88 is attached to the tip end side of the outlet side pipe portion 68 in a state where the protrusion 69 provided on the back side of the outlet side pipe portion 68 is fitted. Although the protrusion 69 provided is formed on the inner peripheral surface of the outlet insertion port 84 so as to be located inside the outlet channel 54, the present invention is not limited to this configuration. For example, like the outlet manifold 96 of the modification shown in FIGS. 9 and 10, the fitting portion 97 into which the plurality of (two) projections 69 provided on the outlet piping portion 68 are fitted is inserted into the outlet side. A plurality (two) may be formed on the inner peripheral surface of the mouth 84. With this configuration, it is possible to suppress the movement of the outlet side pipe portion 68 in the pipe axis direction when the outlet side pipe portion 68 is inserted into the outlet side insertion port 84. As a result, it is possible to secure the sealing property between the outlet side piping portion 68 and the outlet side insertion opening 84. Further, in the outlet-side manifold 96 of the modified example, an annular recess 98 is formed between the fitting portions 97 on the inner peripheral surface of the outlet-side insertion opening 84. The recessed portion 98 facilitates elastic deformation of the outlet insertion opening 84 in the radial direction. For this reason, it is easy to insert the outlet side pipe portion 68 into the outlet side insertion opening 84. Further, like the outlet side manifold 106 of another modified example shown in FIGS. 11 and 12, an annular recess 108 is provided between the fitting portion 88 of the outlet side insertion opening 84 and the opening of the outlet side flow passage 54. May be formed. Further, as in the outlet side manifold 116 of still another modified example shown in FIGS. 13 and 14, the recesses 118 are formed around the opening of the outlet side flow path 54 of the outlet side insertion port 84 at circumferential intervals. Good. By forming the recess 118 in this way, at least a part of the opening edge portion of the outlet side flow path 54 of the outlet side insertion port 84 is reduced in the diameter reducing direction against the force in the outlet direction acting on the outlet side pipe portion 68. It becomes deformable, and the protrusion 69 on the tip side of the outlet side pipe 68 is more effectively prevented from coming off.

(Third Embodiment)
FIG. 15 shows the cooling structure 122 of the third embodiment. The cooling structure 122 of the present embodiment is different from the cooling structure 22 of the first embodiment in the configuration of the inlet-side flow path forming portion 126 of the inlet-side manifold 124, and the other configurations are the same as the cooling structure 22. The description of the same configuration as that of No. 22 will be omitted. The same components as those in the first embodiment are designated by the same reference numerals.

As shown in FIG. 15, the inlet flow path 128 is provided with an area reduction unit 130 as an example of a flow rate adjusting unit for reducing the flow rate of the refrigerant L on the downstream side of the upstream side in the flow direction of the refrigerant L. ing. The area reduction unit 130 is a portion that is bulged from the wall surface of the inlet-side channel 128 so as to reduce the channel area of the inlet-side channel 128 on the downstream side of the upstream side in the flow direction of the refrigerant L.

Next, the function and effect of the cooling structure 122 of this embodiment will be described. Note that the description of the same operational effects as those obtained in the first embodiment will be appropriately omitted.

In the cooling structure 122 of the present embodiment, the inlet-side flow passage 128 of the inlet-side manifold 124 is provided with the area reduction portion 130 for reducing the flow rate of the refrigerant L on the downstream side of the upstream side in the refrigerant flow direction. Therefore, more refrigerant L flows into the cooler 32 located on the upstream side in the flow direction of the refrigerant L than the cooler 32 located on the downstream side in the flow direction of the refrigerant L. That is, in the cooling structure 122, as compared with the configuration in which the area reduction unit 130 is not provided in the inlet side flow channel 128, the heat generating component that contacts the heat exchange unit 33 of the cooler 32 located on the upstream side in the flow direction of the refrigerant L. 36 can be cooled earlier than the heat-generating component 36 in contact with the heat exchange section 33 of the cooler 32 located on the downstream side in the flow direction of the refrigerant L. For example, the heat generation amount of the heat-generating component 36 that contacts the heat exchange portion 33 of the cooler 32 located on the upstream side in the flow direction of the refrigerant L is transferred to the heat exchange portion 33 of the cooler 32 located on the downstream side in the flow direction of the refrigerant L. When the heat generation amount of the heat generating component 36 in contact is higher, by applying the cooling structure 122, the flow rate of the refrigerant L flowing to the cooler 32 located on the upstream side in the flow direction of the refrigerant L is located on the downstream side in the flow direction of the refrigerant L. The flow rate can be higher than the flow rate flowing to the cooler 32. Therefore, the heat generating component 36 that contacts the heat exchange portion 33 of the cooler 32 located upstream in the flow direction of the refrigerant L and the heat exchange portion 33 of the cooler 32 located downstream in the flow direction of the refrigerant L come into contact. The heat-generating component 36 can be cooled efficiently.

Further, in the cooling structure 122, the flow passage area of the inlet side flow channel 128 becomes smaller on the downstream side than the upstream side in the flow direction of the refrigerant L due to the area reduction section 130 provided in the inlet side flow channel 128. In the cooling structure 122, the flow rate of the refrigerant L in the inlet flow channel 128 is more downstream than the upstream side in the flow direction of the refrigerant L in the inlet flow channel 128 with a simple configuration in which the area reduction unit 130 that reduces the flow channel area is provided. Can be reduced.

In the third embodiment, the area reducing portion 130 is provided in the inlet side flow channel 128 of the inlet side manifold 124, but the present invention is not limited to this configuration. For example, like the inlet manifold 132 of the modification shown in FIG. 16, an inlet valve 134 may be provided with an adjusting valve 136 as an example of a flow rate adjusting unit. The adjusting valve 136 adjusts the open area of the inlet channel 128 according to the heat generation amount of the heat generating component 36 located on the upstream side in the flow direction of the refrigerant L and the heat generation amount of the heat generating component 36 located on the downstream side. Is becoming The adjusting valve 136 is controlled by a control device (not shown), and the amount of heat generated by each heat generating component 36 is transmitted to this control device. In the above configuration, since the opening area of the inlet-side flow path 128 can be adjusted by the adjusting valve 136, the heat generation amount of the heat-generating component 36 and the refrigerant which come into contact with the heat exchange section 33 of the cooler 32 located on the upstream side in the flow direction of the refrigerant L and the refrigerant. The flow rate of the refrigerant L flowing through the inlet side flow path 134 in accordance with the heat generation amount of the heat generating component 36 contacting the heat exchange part 33 of the cooler 32 located on the downstream side in the flow direction of L is the upstream side in the flow direction of the refrigerant L. It becomes possible to properly adjust on the downstream side.
Further, in the above-described modification, the adjusting valve 136 is provided in the inlet side manifold 132, but the present invention is not limited to this structure. For example, like the outlet-side manifold 138 of the modification shown in FIG. 17, the outlet-side flow passage 140 may be provided with an adjusting valve 142 as an example of a flow rate adjusting unit. With the above configuration, the same operational effect as the configuration in which the adjusting valve 136 is provided in the inlet side flow channel 128 can be obtained.

The respective configurations of the inlet side manifold 124 of the third embodiment and the inlet side manifold 132 and the outlet side manifold 138 of the modified example may be applied to the first embodiment, the second embodiment and the fifth embodiment described later. ..

(Fourth Embodiment)
FIG. 18 shows the cooling structure 152 of the fourth embodiment. The cooling structure 152 of the present embodiment is different from the cooling structure 22 of the first embodiment in the configuration of the outlet insertion port 156 of the outlet manifold 154, and other configurations are the same as the cooling structure 22, and therefore, The description of the same configuration will be omitted. The same components as those in the first embodiment are designated by the same reference numerals.

As shown in FIG. 18, a thermostat 158 is provided at each outlet insertion port 156 of the outlet manifold 154. The thermostat 158 is configured to open the outlet insertion port 156 when the temperature of the refrigerant L that has exchanged heat with the heat generating component 36 in the cooler 32 is equal to or higher than a predetermined temperature.

Next, the function and effect of the cooling structure 152 of this embodiment will be described. Note that the description of the same operational effects as those obtained in the first embodiment will be appropriately omitted.

In the cooling structure 152 of the present embodiment, the thermostat 158 opens the outlet insertion port 156 when the temperature of the refrigerant L that has exchanged heat with the heat generating component 36 in the cooler 32 becomes equal to or higher than a predetermined temperature. Therefore, when there is a difference in the heat generation amount of each heat generation component 36, the thermostat 158 provided in the outlet side insertion port 156 corresponding to the outlet side pipe portion 35 of the cooler 32 that cools the heat generation component 36 having a high heat generation amount. Is opened, and the thermostat 158 provided in the outlet side insertion port 156 corresponding to the outlet side pipe portion 35 of the cooler 32 that cools the heat generating component 36 having a low calorific value is closed. As a result, a larger amount of the refrigerant L flows in the cooler 32 corresponding to the heat generating component 36 having a high heat generation amount, so that the heat generating component 36 having a high heat generation amount can be effectively cooled.

In the fourth embodiment, a thermostat 158 is provided in each of the outlet insertion ports 156 of the outlet manifold 154, but the present invention is not limited to this configuration. For example, a configuration may be used in which each outlet insertion port 156 of the outlet manifold 154 is provided with an adjustment valve that adjusts the flow rate of the outlet insertion port 156. This adjusting valve is configured to adjust the flow rate of the corresponding outlet insertion port 156 according to the amount of heat generated by each heat generating component 36.

The configuration of the outlet manifold 154 of the fourth embodiment may be applied to the first embodiment, the second embodiment, and the fifth embodiment described later.

(Fifth Embodiment)
FIG. 19 shows the cooling structure 162 of the fifth embodiment. The cooling structure 162 of the present embodiment is different from the cooling structure 22 of the first embodiment in the structure of the inlet side flow path forming portion 166 of the inlet side manifold 164, and the other structures are the same as the cooling structure 22. The description of the same configuration as that of No. 22 will be omitted. The same components as those in the first embodiment are designated by the same reference numerals.

As shown in FIG. 19, the inlet side flow passage 168 is provided in the inlet side flow passage forming portion 166 of the inlet side manifold 164. The inlet flow passage 168 is provided with a turbulent flow promoting body 170 for disturbing the flow of the refrigerant L flowing into the inlet pipe section 34 through the inlet insertion port 48. Specifically, the turbulence promoting bodies 170 are provided at positions corresponding to the respective inlet insertion ports 48 of the inlet flow passage 168.

Next, the function and effect of the cooling structure 162 of this embodiment will be described. Note that the description of the same operational effects as those obtained in the first embodiment will be appropriately omitted.

In the cooling structure 162 of the present embodiment, since the inlet flow passage 168 of the inlet manifold 164 is provided with the turbulent flow promoting body 170 for disturbing the flow of the refrigerant L flowing into the inlet piping section 34, the inlet side 168 is provided. A turbulent flow is promoted in the refrigerant L flowing into the heat exchange section 33 from the piping section 34. As described above, in the cooling structure 162, since the turbulent flow promoting body 170 is provided in the inlet side flow passage 168, for example, as compared with the configuration in which the turbulent flow promoting body 170 is not provided in the inlet side flow passage 168, the heat exchange section 33. A turbulent flow is promoted in the refrigerant L flowing therein, and the heat exchange between the refrigerant L in the heat exchange section 33 and the heat generating component 36 is effectively performed.

The configuration of the inlet side manifold 164 (turbulent flow promoting body 170) of the fifth embodiment may be applied to the first embodiment, the second embodiment, the third embodiment and the fourth embodiment.

The embodiments of the present invention have been described above with reference to the embodiments, but these embodiments are merely examples, and various modifications may be made without departing from the scope of the invention. Further, it goes without saying that the scope of rights of the present invention is not limited to these embodiments.

22 Cooling Structure 30 Assembly 32 Cooler 33 Heat Exchange Section 34 Inlet Side Pipe Section (First Pipe Section)
35 Outlet side piping section (second piping section)
36 Heat generating component 40 Inlet side manifold (first manifold)
42 Entry-side flow path component (first flow path component)
44 Inlet side flow path (first flow path)
46 Entry side connection (first connection)
48 Entry side insertion port (first insertion port)
50 Outlet side manifold (second manifold)
52 Outlet side flow path forming section (second flow path forming section)
54 Outgoing flow path (second flow path)
56 Outgoing side connection (second connection)
58 Outlet insertion port (second insertion port)
62 cooling structure 64 cooler 66 inlet side piping part (first piping part)
67 Projection (First projection)
68 Outlet side piping section (second piping section)
69 Projection (Second projection)
70 Inlet side manifold (first manifold)
72 Entry side connection part (first connection part)
74 Entry side insertion port (first insertion port)
76 recess (first recess)
78 Fitting part (first fitting part)
80 Outlet manifold (2nd manifold)
82 Outgoing side connection (second connection)
84 Outlet insertion port (second insertion port)
86 recess (second recess)
88 Fitting part (second fitting part)
92 Inlet manifold (first manifold)
93 Fitting part (first fitting part)
96 Outlet side manifold (2nd manifold)
97 Fitting part (second fitting part)
102 Inlet side manifold (first manifold)
106 Outlet side manifold (second manifold)
112 Inlet side manifold (first manifold)
114 recess (first recess)
116 Outlet side manifold (second manifold)
118 recess (second recess)
122 Cooling Structure 124 Inlet Manifold (Second Manifold)
126 Entry-side flow path component (first flow path component)
128 inlet side channel (first channel)
130 Area reduction unit (flow rate adjusting means)
132 Inlet manifold (first manifold)
134 Inlet side flow path (first flow path)
136 Adjusting valve (flow rate adjusting means)
138 Outlet side manifold (2nd manifold)
140 Outflow channel (second channel)
142 Adjusting valve (flow rate adjusting means)
152 Cooling Structure 154 Outlet Manifold (Second Manifold)
156 Outlet insertion port (second insertion port)
162 Cooling structure 164 Inlet manifold (first manifold)
166 Entry-side flow path component (first flow path component)
168 inlet side flow path (first flow path)
170 Turbulence promoter

Claims (7)

A heat exchanging portion which is arranged at a distance in the first direction and through which a refrigerant flows, and a first piping portion which extends from the heat exchanging portion in a direction intersecting the first direction and communicates with the inside of the heat exchanging portion. A plurality of coolers each including a second pipe portion that extends from the heat exchange portion to the side opposite to the first pipe portion and communicates with the inside of the heat exchange portion, and the heat exchange portion that is adjacent in the first direction. An assembly having a heat-generating component disposed between and in contact with the heat exchange unit;
A first flow path forming part that extends in the first direction and forms a first flow path through which the refrigerant flows, and a plurality of first insertion ports formed of an elastic material and into which the first piping part is inserted, A first manifold including a first connecting portion that communicates the inside of the first piping portion with the first flow path;
A second flow path forming part that extends in the first direction and forms a second flow path through which the refrigerant flows, and a plurality of second insertion ports that are formed of an elastic material and into which the second piping part is inserted, A second manifold provided with a second connecting portion that communicates the inside of the second piping portion with the second flow path;
Cooling structure. The first flow path forming portion and the first connecting portion are integrally formed of an elastic material,
The cooling structure according to claim 1, wherein the second flow path forming portion and the second connecting portion are integrally formed of an elastic material. The first manifold is arranged upstream of the cooler in the flow direction of the refrigerant,
The cooling structure according to claim 1 or 2, wherein the first flow path is provided with flow rate adjusting means for reducing the flow rate of the refrigerant on the downstream side of the upstream side in the flow direction of the refrigerant. The flow rate adjusting means is an area reduction unit that is provided in the first flow path and reduces the flow path area of the first flow path on the downstream side of the upstream side in the flow direction of the refrigerant. Cooling structure. The cooling structure according to claim 3, wherein the flow rate adjusting means is an adjusting valve provided in the first flow path and adjusting an open area of the first flow path. A plurality of annular first protrusions are provided on the outer periphery of the first pipe portion along the circumferential direction at intervals in the pipe axis direction,
A plurality of annular second protrusions are provided on the outer circumference of the second pipe portion along the circumferential direction at intervals in the pipe axial direction,
The first connecting portion is formed on a first concave portion formed around the first insertion opening and an inner peripheral surface of the first insertion opening, and a first fitting portion into which the first protrusion is fitted. And
The second connecting portion is formed on a second concave portion formed around the second insertion opening and an inner peripheral surface of the second insertion opening, and a second fitting portion into which the second protrusion is fitted. The cooling structure according to any one of claims 1 to 5, further comprising: The first manifold is arranged upstream of the cooler in the flow direction of the refrigerant,
The cooling according to any one of claims 1 to 6, wherein the first flow path is provided with a turbulent flow promoting body for disturbing a flow of the refrigerant flowing into the first piping portion. Construction.