Cooling unit and cooling system

Abstract

The cooling unit has first and second cooling plates, an inflow pipe, and an outflow pipe. The first cooling plate and the second cooling plate are disposed on both sides of the heat generating member in the first direction, respectively. The inflow pipe causes a refrigerant to flow into the first cooling plate and the second cooling plate. The refrigerant flowing out of the first cooling plate and the second cooling plate passes through the outflow pipe. At least a portion of the first cooling plate and at least a portion of the second cooling plate overlap in the first direction. At least a portion of the inflow pipe and at least a portion of the outflow pipe are disposed between the first cooling plate and the second cooling plate in the first direction.

Description

Technical Field

[0001] The present disclosure relates to a cooling unit and a cooling system. Background Art

[0002] Conventionally, there is known a cooling unit including: a cooling plate disposed on a heat generating component; an inlet pipe for allowing a refrigerant to flow into the cooling plate; and an outlet pipe through which the refrigerant flowing out of the cooling plate passes (for example, see Patent Document 1).

[0003] Patent document 1 describes a cooling device having a heat receiving component arranged on a heat generating body. The heat receiving component has a structure in which a base component and a shell component are combined and joined to form a closed space for allowing a refrigerant to pass through the inside. The base component is arranged on the heat generating body. The shell component is arranged on the base component. The shell component is provided with an inlet port for allowing a refrigerant to flow into the above-mentioned closed space and an outlet port for allowing a refrigerant to flow out of the above-mentioned closed space.

[0004] [Prior art literature]

[0005] [Patent Document]

[0006] Patent Document 1: Japanese Patent Application Publication No. 2008-218589 Summary of the invention

[0007] Problems to be solved by the invention

[0008] In the cooling device of Patent Document 1, the inflow passage and the outflow passage are arranged in the housing member. Therefore, the cooling device of Patent Document 1 is a structure that cools the heat generating element only from the upper side, and therefore it is difficult to cool the heat generating element efficiently.

[0009] The present disclosure has been made in view of the above-mentioned problems, and an object of the present disclosure is to provide a cooling unit and a cooling system that can effectively cool a heat-generating component.

[0010] Means for solving problems

[0011] An exemplary cooling unit of the present disclosure comprises a first cooling plate and a second cooling plate, an inflow pipe and an outflow pipe. The first cooling plate and the second cooling plate are respectively arranged on both sides of the first direction of the heat generating component. The inflow pipe allows the refrigerant to flow into the first cooling plate and the second cooling plate. The refrigerant flowing out of the first cooling plate and the second cooling plate passes through the outflow pipe. At least a portion of the first cooling plate and at least a portion of the second cooling plate overlap in the first direction. At least a portion of the inflow pipe and at least a portion of the outflow pipe are arranged between the first cooling plate and the second cooling plate in the first direction.

[0012] The exemplary cooling system of the present disclosure has the above-mentioned cooling unit, a pump unit and a heat exchanger. The pump unit allows the refrigerant to flow through the cooling unit. The heat exchanger cools the refrigerant flowing from the cooling unit. The cooling unit, the pump unit and the heat exchanger are respectively connected by connecting pipes. The refrigerant circulates in the cooling unit, the pump unit and the heat exchanger.

[0013] The exemplary cooling unit of the present disclosure has a third cooling plate, an inflow pipe, an outflow pipe and a fifth connection portion. The third cooling plate is arranged on one side of the first direction of the heat generating component. The inflow pipe allows the refrigerant to flow into the third cooling plate. The refrigerant flowing out of the third cooling plate passes through the outflow pipe. The fifth connection portion is connected to the inflow pipe or the outflow pipe and is fixed to the third cooling plate. The fifth connection portion can move relative to the inflow pipe or the outflow pipe.

[0014] Effects of the Invention

[0015] According to the illustrated disclosure, a cooling unit and a cooling system capable of effectively cooling a heat generating component can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 : is a diagram showing an outline of a cooling system having a cooling unit according to Exemplary Embodiment 1 of the present disclosure.

[0017] Figure 2 It is a perspective view showing the periphery of the cooling unit.

[0018] Figure 3 It is a perspective view showing the structure of a cooling plate, an inflow pipe, and an outflow pipe of a cooling unit.

[0019] Figure 4 It is an exploded perspective view showing the structure of a cooling plate, an inflow pipe, and an outflow pipe of a cooling unit.

[0020] Figure 5 It is an exploded perspective view showing a cooling plate, a heat conducting member, and a first heat generating member of the cooling unit.

[0021] Figure 6 It is an exploded perspective view showing a cooling plate, a heat conducting member, and a first heat generating member of the cooling unit.

[0022] Figure 7 It is an exploded perspective view showing the structure of a cooling plate of a cooling unit.

[0023] Figure 8 It is an exploded perspective view showing the structure of a cooling plate of a cooling unit.

[0024] Fig. 9This is a diagram showing the structure of the second member of the cooling plate of the cooling unit from the other side in the first direction.

[0025] Fig.10 is Fig. 9 A cross-sectional view obtained by cutting the cooling plate, the heat conducting component, and the first heat generating component of the cooling unit along the position of the XX line.

[0026] Fig.11 is Fig. 9 A cross-sectional view obtained by cutting the cooling plate, the heat conductive component, and the first heat generating component of the cooling unit at the position of the XI-XI line.

[0027] Fig.12 It is a diagram showing the positional relationship between the heat conduction member and the internal flow path of the cooling unit.

[0028] Fig.13 This is a perspective view showing the structure of a cooling unit according to a first modified example of Embodiment 1.

[0029] Fig.14 This is a perspective view showing the structure of a cooling unit U1A according to a second modified example of the first embodiment.

[0030] Fig.15 This is an exploded perspective view showing the structure of a cooling unit U1A according to a second modified example of the first embodiment.

[0031] Fig.16 It is a cross-sectional view of a cooling unit U1A according to a second modified example of the first embodiment.

[0032] Fig.17 It is a cross-sectional view of a cooling unit U1A according to a second modified example of the first embodiment.

[0033] Fig.18 1 is a diagram showing an outline of a cooling system 101 having a cooling unit U1B according to Exemplary Embodiment 2 of the present disclosure.

[0034] Fig.19 1 is a perspective view showing the cooling unit U1B.

[0035] Fig. 20 1 is a cross-sectional view showing the structure of the inflow pipe 110 and the outflow pipe 120 .

[0036] Fig.21 1 is a diagram showing the cooling unit U1B in which the cooling plate P3 is located at the first position T1.

[0037] Fig. 22 1 is a diagram showing the cooling unit U1B in which the cooling plate P3 is located at the second position T2. DETAILED DESCRIPTION

[0038] (Implementation Method 1)

[0039] Hereinafter, exemplary embodiment 1 of the present disclosure will be described with reference to the drawings. It should be noted that in the drawings, the same reference numerals are given to the same or corresponding parts, and the description thereof will not be repeated.

[0040] In this specification, for ease of understanding, the first direction Z, the second direction X, and the third direction Y that are orthogonal to each other are appropriately recorded. In addition, one side of the first direction Z is recorded as one side Z1 of the first direction Z, and the other side of the first direction Z is recorded as the other side Z2 of the first direction Z. In addition, one side of the second direction X is recorded as one side X1 of the second direction X, and the other side of the second direction X is referred to as the other side X2 of the second direction X. In addition, one side of the third direction Y is recorded as one side Y1 of the third direction Y, and the other side of the third direction Y is recorded as the other side Y2 of the third direction Y. However, this is just a definition of the direction for the sake of convenience of explanation, and does not limit the direction of the exemplary cooling plate of the present disclosure when in use, except for the case where the horizontal direction and the vertical direction need to be specifically defined. In addition, in this specification, "orthogonal directions" also include substantially orthogonal directions.

[0041] Reference Figures 1 to 12 , the cooling units U1, U2, and U3 having cooling plates P1 and P2 according to the exemplary embodiment 1 of the present disclosure are described. Figure 1 , a cooling system 100 including cooling units U1 , U2 , and U3 according to the exemplary embodiment 1 of the present disclosure will be described. Figure 1 1 is a diagram showing an overview of a cooling system 100 including cooling units U1 , U2 , and U3 according to the first exemplary embodiment of the present disclosure.

[0042] The cooling system 100 is, for example, provided in a computer device 200 for cooling. The computer device 200 is an example of an electronic device. As an example, the cooling system 100 includes three cooling units U1, U2, and U3, a manifold M1, a manifold M2, a pump unit 21, and a heat exchanger 22. It should be noted that the cooling system 100 may also be provided outside the computer device 200.

[0043] The pump unit 21 has, for example, one or more pump devices. The multiple pump devices are connected in series or in parallel. Each pump device has one or more pumps for sucking in and discharging refrigerant. The multiple pumps are connected in series or in parallel. It should be noted that the refrigerant can be a cooling liquid such as cooling water or cooling oil, or a cooling gas. In this embodiment, the refrigerant is, for example, a cooling liquid.

[0044] The pump unit 21 is connected to the manifold M1 and the manifold M2, for example, via the flow path M3 and the heat exchanger 22. The manifold M1 is, for example, a pipe connecting the pump unit 21 and the cooling units U1, U2, and U3. The flow path M3 is, for example, a pipe connecting the pump unit 21 and the heat exchanger 22. The refrigerant passes through the manifolds M1, M2, and the flow path M3.

[0045] The pump unit 21 allows the refrigerant to circulate in the cooling units U1, U2, and U3. Specifically, the pump unit 21 supplies the refrigerant to the manifold M1. The refrigerant passes through the inside of the manifold M1. The manifold M1 distributes the refrigerant supplied from the pump unit 21 and supplies it to the cooling units U1, U2, and U3. The refrigerant supplied to each cooling unit U1, U2, and U3 passes through each cooling unit U1, U2, and U3, and is supplied to the manifold M2. The following description will be made using the cooling unit U1 as a representative. The structures and functions of the cooling units U2 and U3 are the same as those of the cooling unit U1.

[0046] The cooling unit U1, for example, has two cooling plates P1 and P2. The cooling plates P1 and P2 receive heat from the heat-generating component 500 described later, respectively, and cool the heat-generating component 500. The heat-generating component 500 is, for example, a computing device such as a CPU configured in the computer device 200, and a storage device such as a memory. When passing through the interior of the cooling unit U1, the refrigerant passes through the cooling plates P1 and P2. For example, the refrigerant performs heat exchange in the cooling plates P1 and P2, whereby the refrigerant having heat circulates in the cooling system 100. The cooling plates P1 and P2 may be cooling plates of the same structure or cooling plates of different structures. In addition, the cooling unit U1 may also have three or more cooling plates including the cooling plates P1 and P2.

[0047] The manifold M2 is, for example, a pipe connecting the cooling units U1, U2, and U3 to the heat exchanger 22. The refrigerant passes through the inside of the manifold M2. The manifold M2 merges the refrigerants that have passed through the cooling units U1, U2, and U3 and supplies them to the heat exchanger 22. The refrigerant supplied to the heat exchanger 22 passes through the heat exchanger 22, for example. The heat exchanger 22 cools the refrigerant flowing from the cooling units U1, U2, and U3. For example, the heat exchanger 22 is a radiator that dissipates heat to the outside by passing the refrigerant having heat through the heat exchanger 22. Inside the heat exchanger 22, there are a plurality of refrigerant tubes for the refrigerant to pass through the inside and a plurality of heat sinks arranged around the refrigerant tubes. Parts of each of the plurality of heat sinks are in contact with the refrigerant tubes. More specifically, the heat sinks are joined to the refrigerant tubes by welding or the like. The heat sink absorbs the heat of the refrigerant tubes and the refrigerant, and dissipates the heat to the external air, thereby lowering the temperature of the refrigerant. However, the heat exchanger 22 is not limited to a radiator that dissipates heat to the outside. The heat exchanger 22 may perform heat exchange with, for example, a flow path through which another refrigerant passes.

[0048] The refrigerant that has passed through the heat exchanger 22 is supplied to the pump unit 21 through the flow path M3. The refrigerant supplied to the pump unit 21 is again supplied to the manifold M1 by the pump unit 21. As described above, the refrigerant circulates in the cooling units U1, U2, U3, the pump unit 21, and the heat exchanger 22. In the present embodiment, in the cooling system 100, the refrigerant circulates in the pump unit 21, the manifold M1, the cooling units U1, U2, U3, the manifold M2, the heat exchanger 22, and the flow path M3. Figure 1 In the figure, the circulation of the refrigerant is shown by arrows. It should be noted that the circulation direction of the refrigerant may also be the opposite direction. In addition, the configuration of the cooling units U1, U2, U3, the pump unit 21 and the heat exchanger 22 is an example, and the configuration other than the above may also be used.

[0049] Next, refer to Figure 2 The cooling unit U1 including the cooling plate P1 will be described in detail. Figure 2 It is a perspective view showing the periphery of the cooling unit U1.

[0050] like Figure 2 As shown, the cooling unit U1 has a cooling plate P1 and a cooling plate P2, an inflow pipe 110 and an outflow pipe 120. The cooling plate P1 is an example of the "first cooling plate" of the present disclosure, and the cooling plate P2 is an example of the "second cooling plate" of the present disclosure. The cooling plate P1 and the cooling plate P2 are arranged on both sides of the first direction Z of the heat-generating component 500. The inflow pipe 110 allows the refrigerant to flow into the cooling plate P1 and the cooling plate P2. The refrigerant flowing out of the cooling plate P1 and the cooling plate P2 passes through the outflow pipe 120. The inflow pipe 110 is connected to a connecting pipe M11 that constitutes a part of the manifold M1. The outflow pipe 120 is connected to a connecting pipe M21 that constitutes a part of the manifold M2.

[0051] As described above, the cooling plate P1 and the cooling plate P2 are arranged on both sides of the heat generating component 500 in the first direction Z. Therefore, since the heat generating component 500 can be cooled from both sides, the heat generating component 500 can be cooled efficiently.

[0052] The refrigerant that has passed through the connection pipe M11 flows into the cooling plate P1 and the cooling plate P2 via the inflow pipe 110. The refrigerant that has passed through the cooling plate P1 and the cooling plate P2 flows out to the connection pipe M21 via the outflow pipe 120. The refrigerant absorbs heat from the heat generating component 500 when passing through the cooling plate P1 and the cooling plate P2. Therefore, the temperature rise of the heat generating component 500 is suppressed.

[0053] The heating component 500 may have only one heating component, but may also have multiple heating components. In the present embodiment, the heating component 500 has two heating components (a first heating component 501 and a second heating component 502). The first heating component 501 and the second heating component 502 are stacked in the first direction Z. In the present embodiment, the cooling unit U1 also has a supporting component 130. The supporting component 130 is arranged between the first heating component 501 and the second heating component 502. The supporting component 130 supports the first heating component 501 and the second heating component 502. The first heating component 501 and the second heating component 502 can be fixed at a predetermined position of the supporting component 130. The supporting component 130 has a flat plate shape. The supporting component 130 is not particularly limited, for example, it is formed by a metal plate. It should be noted that in the present embodiment, an example of a supporting component 130 arranged between the first heating component 501 and the second heating component 502 is shown, but the supporting component 130 may not be arranged between the first heating component 501 and the second heating component 502.

[0054] In addition, in the present embodiment, the cooling unit U1 further includes a fixing component 140. The fixing component 140 is, for example, arranged on both sides of the second direction X of the cooling plates P1 and P2. The second direction X is a direction orthogonal to the first direction Z. The fixing component 140 fixes the cooling plate P1 and the cooling plate P2. The fixing component 140 is formed, for example, by bending a plate made of sheet metal. At least a portion of the fixing component 140 extends along the first direction Z. The cooling plate P1 is fixed to the end of one side Z1 of the first direction Z of the fixing component 140 using a screw 145. The cooling plate P2 is fixed to the end of the other side Z2 of the first direction Z of the fixing component 140 using a screw 145. In addition, the cooling plate P1 is fixed to the fixing component 140 in a state where the heat generating component 500 is pressed toward the other side Z2 of the first direction Z. In addition, the cooling plate P2 is fixed to the fixing component 140 in a state where the heat generating component 500 is pressed toward the one side Z1 of the first direction Z. Therefore, the heat generating component 500 can be suppressed from moving in a direction intersecting the first direction Z.

[0055] In addition, in the present embodiment, the support member 130 is fixed to the fixing member 140 using the screws 146. It should be noted that the support member 130 may not be fixed to the fixing member 140.

[0056] Next, refer to Figure 3 and Figure 4 , the structures of the cooling plate P1, the cooling plate P2, the inflow pipe 110 and the outflow pipe 120 of the cooling unit U1 are described in detail. Figure 3 It is a perspective view showing the structure of the cooling plate P1, the cooling plate P2, the inflow pipe 110, and the outflow pipe 120 of the cooling unit U1. Figure 4It is an exploded perspective view showing the structure of the cooling plate P1, the cooling plate P2, the inflow pipe 110, and the outflow pipe 120 of the cooling unit U1.

[0057] like Figure 3 and Figure 4 As shown, the cooling plate P1 and the cooling plate P2 have a substantially flat plate shape. The cooling plate P1 and the cooling plate P2 are arranged parallel to each other. The cooling plate P1 and the cooling plate P2 are spaced apart from each other in the first direction Z by a predetermined distance.

[0058] At least a portion of the cooling plate P1 and at least a portion of the cooling plate P2 overlap in the first direction Z. In the present embodiment, substantially the entirety of the cooling plate P1 and substantially the entirety of the cooling plate P2 overlap in the first direction Z.

[0059] Furthermore, at least a portion of the inflow pipe 110 and at least a portion of the outflow pipe 120 are disposed between the cooling plate P1 and the cooling plate P2 in the first direction Z. Therefore, it is possible to suppress an increase in size of the cooling unit U1.

[0060] The inlet pipe 110 has a common inlet portion 111, a branch portion 112, a first connection portion 113, and a second connection portion 114. The common inlet portion 111 is connected to the manifold M1 (see Figure 2 ) is connected. The branch portion 112 branches the refrigerant passing through the common inflow portion 111. The first connection portion 113 connects the branch portion 112 and the cooling plate P1. The second connection portion 114 connects the branch portion 112 and the cooling plate P2. Therefore, the refrigerant from the manifold M1 flows into the cooling plate P1 or the cooling plate P2 via the first connection portion 113 or the second connection portion 114 after passing through the common inflow portion 111 and being branched by the branch portion 112. In this way, the inflow pipe 110 has the common inflow portion 111, the branch portion 112, the first connection portion 113 and the second connection portion 114, thereby allowing the refrigerant to flow into two cooling plates (cooling plates P1, P2) through one inflow pipe 110. Therefore, the number of inflow pipes 110 can be suppressed from increasing.

[0061] The outflow pipe 120 has a third connection portion 121, a fourth connection portion 122, a confluence portion 123, and a common outflow portion 124. The third connection portion 121 is connected to the cooling plate P1. In other words, the third connection portion 121 connects the cooling plate P1 to the confluence portion 123. The fourth connection portion 122 is connected to the cooling plate P2. In other words, the fourth connection portion 122 connects the cooling plate P2 to the confluence portion 123. The confluence portion 123 merges the refrigerant that has passed through the third connection portion 121 and the fourth connection portion 122. The refrigerant that has passed through the confluence portion 123 passes through the common outflow portion 124. In addition, the common outflow portion 124 is connected to the manifold M2 (refer to Figure 2) are connected. Therefore, the refrigerant from the cooling plate P1 and the cooling plate P2 passes through the third connection part 121 and the fourth connection part 122, and after merging at the confluence part 123, flows out to the manifold M2 through the common outflow part 124. In this way, the outflow pipe 120 has the third connection part 121, the fourth connection part 122, the confluence part 123, and the common outflow part 124, so that the refrigerant can flow out from the two cooling plates (cooling plates P1 and P2) through one outflow pipe 120. Therefore, the number of outflow pipes 120 can be suppressed from increasing.

[0062] The first connection portion 113 of the inflow pipe 110 is connected to an inflow port 156 of a surface (contact surface 151 described later) disposed on the cooling plate P2 side of the cooling plate P1. The second connection portion 114 of the inflow pipe 110 is connected to an outflow port 157 of a surface (contact surface 151 described later) disposed on the cooling plate P1 side of the cooling plate P2.

[0063] In addition, in the present embodiment, the inflow pipe 110 has a substantially T-shape. Specifically, the first connection portion 113, the branch portion 112, and the second connection portion 114 are arranged in a straight line along the first direction Z. Moreover, the first connection portion 113, the branch portion 112, and the second connection portion 114 are arranged between the cooling plate P1 and the cooling plate P2 in the first direction Z. The common inflow portion 111 extends in a third direction Y that is orthogonal to the first direction Z and the second direction X.

[0064] In addition, in the present embodiment, the outflow pipe 120 has a substantially T-shape. Specifically, the third connection portion 121, the confluence portion 123, and the fourth connection portion 122 are arranged in a straight line along the first direction Z. Moreover, the third connection portion 121, the confluence portion 123, and the fourth connection portion 122 are arranged between the cooling plate P1 and the cooling plate P2 in the first direction Z. The common outflow portion 124 extends along the third direction Y. The common inflow portion 111 and the common outflow portion 124 are arranged, for example, in parallel with each other.

[0065] Next, refer to Figure 5 and Figure 6 , the structure around the cooling plate P1 is described. Figure 5 and Figure 6 It is an exploded perspective view showing the cooling plate P1 of the cooling unit U1, the heat conducting component 170 and the first heat generating component 501. It should be noted that since the structure around the cooling plate P1 is substantially the same as that around the cooling plate P2 in the first direction Z, the description of the structure around the cooling plate P2 is omitted.

[0066] The cooling plate P1 has a contact surface 151 in contact with the heat generating component 500. The contact surface 151 may be in direct contact with the heat generating component 500 or may be in indirect contact with the heat generating component 500. In the present embodiment, the cooling unit U1 further has a heat conducting component 170. The heat conducting component 170 is disposed between the contact surface 151 and the heat generating component 500. The contact surface 151 is in indirect contact with the heat generating component 500 via the heat conducting component 170.

[0067] In the present embodiment, as described above, the heat conducting member 170 is disposed between the cooling plate P1 and the heat generating component 500. Therefore, for example, even when there are small irregularities on the surface of the cooling plate P1 or the heat generating component 500, the heat conducting member 170 fills up the irregularities, thereby suppressing the presence of an air layer between the cooling plate P1 and the heat generating component 500. Therefore, the heat of the heat generating component 500 is efficiently transferred to the cooling plate P1, and thus the heat dissipation of the heat generating component 500 is improved.

[0068] The heat conducting component 170 can be made of any material that can effectively conduct heat, for example, a heat conducting sheet or grease can be used. The heat conducting sheet can be, for example, an elastic sheet such as a rubber sheet. In the present embodiment, the heat conducting component 170 is a heat conducting sheet having a predetermined thickness. It should be noted that by making the heat conducting component 170 contain particles with high heat conductivity, the heat conductivity of the heat conducting component 170 can be further improved.

[0069] One or more heat conducting components 170 are provided. In this embodiment, a plurality of heat conducting components 170 (four in this case) are provided. It should be noted that the heat conducting component 170 may also include, for example, Figure 5 and Figure 6 The heat conducting member 170 is one of the sizes of the plurality of heat conducting members 170 shown. The heat conducting member 170 is disposed in a region of the heat generating member 500 that particularly needs to be cooled. For example, the heat conducting member 170 is disposed in a region of the heat generating member 500 that is prone to high temperature.

[0070] Next, refer to Figure 7 to Figure 12 , the structure of the cooling plate P1 is described in detail. Figure 7 and Figure 8 It is an exploded perspective view showing the structure of the cooling plate P1 of the cooling unit U1. It should be noted that since the structure around the cooling plate P1 is substantially the same as the structure around the cooling plate P2 in the first direction Z, the description of the structure around the cooling plate P2 is omitted.

[0071] like Figure 7 and Figure 8 As shown, the cooling plate P1 is made of a metal with high thermal conductivity such as copper or aluminum. The cooling plate P1 is a rectangular plate member extending in the second direction X and the third direction Y. It should be noted that the shape of the cooling plate P1 may be other than a rectangular shape.

[0072] The cooling plate P1 includes a first member 150 and a second member 160. The first member 150 is disposed on the heat generating component 500 (see Figure 5 ) side, the second component 160 is arranged on the side of the cooling plate P1 opposite to the heat generating component 500.

[0073] The cooling plate P1 has an internal flow path Pa and a heat sink portion 155. The refrigerant passes through the internal flow path Pa. The internal flow path Pa is arranged to overlap with the contact surface 151 in the first direction Z. The internal flow path Pa is composed of the first component 150 and the second component 160. In other words, the first component 150 and the second component 160 constitute the internal flow path Pa. Specifically, the first component 150 has an inner surface 152 arranged on the second component 160 side. The inner surface 152 is a flat surface. The second component 160 has an inner surface 161 arranged on the first component 150 side and a recessed portion 162 arranged on the inner surface 161. The first component 150 and the second component 160 are fixed by welding or brazing in a state where the inner surface 152 and the inner surface 161 are in close contact. The internal flow path Pa is composed of the inner surface 152 of the first component 150 and the recessed portion 162 of the second component 160.

[0074] The heat sink portion 155 is arranged in the internal flow path Pa. The heat sink portion 155 has a plurality of heat sinks 155a. In the heat sink portion 155, since the contact area with respect to the refrigerant is large, heat is efficiently transferred to the refrigerant. The heat sink portion 155 is, for example, arranged on the first component 150. In the present embodiment, the heat sink 155a and the first component 150 are an integral component. The heat sink 155a is formed, for example, by cutting to thin the surface of the first component 150. It should be noted that the method for forming the heat sink 155a is not limited to cutting.

[0075] In addition, the first member 150 has an inlet 156 and an outlet 157. The inlet 156 and the outlet 157 are arranged on the contact surface 151 of the first member 150. The inlet 156 is connected to the inlet pipe 110 (see Figure 4 ) is connected. The inlet 156 is connected to the internal flow path Pa. The refrigerant passing through the inlet pipe 110 flows into the internal flow path Pa through the inlet 156. On the other hand, the outlet 157 is connected to the outflow pipe 120 (see Figure 4 ) is connected. The outflow port 157 is connected to the internal flow path Pa. The refrigerant having passed through the internal flow path Pa flows out to the outflow pipe 120 via the inflow port 156 .

[0076] In addition, the first member 150 has, for example, the same number of protrusions 158 as the number of the heat conducting member 170 (see Figure 8The convex portion 158 is disposed on the contact surface 151. The size of the convex portion 158 is not particularly limited, and may be, for example, the same as the heat conducting member 170 or slightly larger than the heat conducting member 170.

[0077] Each convex portion 158 overlaps at least a portion of the heat conducting member 170 in the first direction Z. Therefore, the cooling plate P1 and the heat conducting member 170 can be easily aligned. Each region R2 described below overlaps at least a portion of the convex portion 158 and at least a portion of the heat conducting member 170 .

[0078] Fig. 9 1 is a diagram showing the structure of the second component 160 of the cooling plate P1 of the cooling unit U1 from the other side Z2 of the first direction Z. Fig. 9 As shown, the internal flow path Pa includes an upstream portion Pa1, a fin housing portion Pa2, and a downstream portion Pa3.

[0079] The upstream portion Pa1 is arranged on the upstream side of the refrigerant flow direction relative to the fin storage portion Pa2. The upstream portion Pa1 connects the inlet 156 to the fin storage portion Pa2. The fin storage portion Pa2 stores the fin portion 155. The downstream portion Pa3 is arranged on the downstream side of the refrigerant flow direction relative to the fin storage portion Pa2. The downstream portion Pa3 connects the fin storage portion Pa2 to the outlet 157. The refrigerant flowing in from the inlet 156 passes through the upstream portion Pa1, the fin storage portion Pa2 and the downstream portion Pa3 in sequence, and flows out from the outlet 157.

[0080] like Figure 7 As shown, the plurality of heat sinks 155a are arranged in a second direction X orthogonal to the first direction Z. In other words, a plurality of heat sinks 155a are arranged in the second direction X. The plurality of heat sinks 155a are spaced apart from each other in the second direction X. Each heat sink 155a extends along the third direction Y. Therefore, in the heat sink storage portion Pa2 (refer to Fig. 9 ) in which the refrigerant flows along the third direction Y.

[0081] like Figure 8 and Fig. 9 As shown, the cooling plate P1 has a partition 163. In the present embodiment, the partition 163 is disposed on the second member 160. It should be noted that the partition 163 may also be disposed on the first member 150. In addition, the cooling plate P1 has one or more (two in this case) partitions 163.

[0082] As described above, the heat sink 155 is disposed on the first component 150, and the partition 163 is disposed on the second component 160. Therefore, the heat sink 155 and the partition 163 can be formed on different components. Therefore, when the heat sink 155a of the heat sink 155 is cut, the cutting edge can be prevented from contacting the partition 163.

[0083] The partition 163 is arranged in the internal flow path Pa to divide the internal flow path Pa into a plurality of flow paths. Specifically, the partition 163 is arranged adjacent to the heat sink portion 155 in the third direction Y. It should be noted that in the present embodiment, the partition 163 is arranged on the downstream side of the refrigerant flow direction relative to the heat sink portion 155, but may also be arranged on the upstream side of the refrigerant flow direction relative to the heat sink portion 155.

[0084] In the region R1 in which the heat sink portion 155 is provided with the heat sink 155a adjacent to the partition portion 163, the flow velocity of the refrigerant becomes slower. That is, the amount of refrigerant flowing in the region R1 becomes less. On the other hand, in the region R2 in which the heat sink portion 155 is provided with the heat sink 155a not adjacent to the partition portion 163, the flow velocity of the refrigerant becomes faster than that in the region R1. That is, the amount of refrigerant flowing in the region R2 becomes more. Therefore, in the present embodiment, the internal flow path Pa is divided into a plurality of (here three) flow paths (regions R2) by the partition portion 163. It should be noted that the plurality of regions R2 are an example of "plurality of flow paths" disclosed in the present invention.

[0085] Fig.10 is Fig. 9 The cross-sectional view is obtained by cutting the cooling plate P1, the heat conducting member 170, and the first heat generating member 501 of the cooling unit U1 along the line XX. Fig.11 is Fig. 9 1 is a cross-sectional view obtained by cutting the cooling plate P1 of the cooling unit U1, the heat conductive component 170, and the first heat generating component 501 along the line XI-XI.

[0086] like Fig.10 and Fig.11 As shown, the heat sink 155 and the heat conducting member 170 are arranged to overlap in the first direction Z. Therefore, since the heat of the heat generating component 500 can be efficiently transferred to the heat sink 155 via the heat conducting member 170 , the cooling effect can be improved.

[0087] Fig.12 1 is a diagram showing the positional relationship between the heat conducting member 170 of the cooling unit U1 and the internal flow path Pa. Fig.12 In the figure, for ease of understanding, the heat conducting member 170 is shaded. Fig.12 As shown, the heat conducting component 170 is arranged in the region R2 where the flow rate of the refrigerant in the internal flow path Pa is relatively large when viewed from the first direction Z. In other words, when viewed from the first direction Z, the region R2 overlaps with the heat conducting component 170. Therefore, the refrigerant can pass more through the portion (region R2) with high heat dissipation performance. As a result, the heat generating component 500 can be cooled more effectively.

[0088] As described above, the cooling plate P1 includes the partitions 163 that partition the internal flow path Pa into a plurality of flow paths. Therefore, the fins 155 can be easily provided in the portion (region R2) where the coolant easily passes and the portion (region R1) where the coolant hardly passes.

[0089] (First Modification)

[0090] Reference Fig.13 , a first variation example of embodiment 1 of the present disclosure is described. Fig.13 This is a perspective view showing the structure of a cooling unit U1 according to a first modified example of the first embodiment.

[0091] like Fig.13 As shown, in the cooling unit U1 of the first modified example, the inflow pipe 110 and the outflow pipe 120 have Figures 1 to 12 The inflow pipe 110 and the outflow pipe 120 of the illustrated embodiment have different shapes. The inflow pipe 110 and the outflow pipe 120 have a substantially L-shape. That is, the surface of the second connection portion 114 may be substantially coplanar with the surface of the common inflow portion 111. In addition, the surface of the third connection portion 121 may be substantially coplanar with the surface of the common outflow portion 124. It should be noted that the surface of the first connection portion 113 may also be substantially coplanar with the surface of the common inflow portion 111. In addition, the surface of the fourth connection portion 122 may also be substantially coplanar with the surface of the common outflow portion 124.

[0092] (Second Modification)

[0093] Reference Figure 14 to Figure 17 , a second variant example of embodiment 1 of the present disclosure is described. Fig.14 This is a perspective view showing the structure of a cooling unit U1A according to a second modified example of the first embodiment. Fig.15 This is an exploded perspective view showing the structure of a cooling unit U1A according to a second modified example of the first embodiment. Fig.16 It is a cross-sectional view of a cooling unit U1A according to a second modified example of the first embodiment. Fig.17 It is a cross-sectional view of a cooling unit U1A according to a second modified example of the first embodiment.

[0094] In the present embodiment, a cooling unit U1A according to the second modification is used in the cooling system 100 instead of the cooling unit U1 or the cooling unit U1 according to the first modification.

[0095] like Fig.14 As shown, the cooling unit U1A has a cooling plate P1A and a cooling plate P2A, an inflow pipe 110A, and an outflow pipe 120A. The cooling plate P1A is the same as the cooling plate P1 except that the shape is different from the cooling plate P1. The cooling plate P2A is the same as the cooling plate P2 except that the shape is different from the cooling plate P2.

[0096] Next, refer to Fig.15 and Fig.16 , the structures of the cooling plate P1A, the inflow pipe 110A and the outflow pipe 120A are described in detail. Fig.15 As shown, the cooling plate P1A has a first part 150A and a second part 160A. The first part 150A is the same as the first part 150 except that the shape is different from the first part 150. The second part 160A is the same as the second part 160 except that the shape is different from the second part 160.

[0097] The shapes of the inflow pipe 110A and the outflow pipe 120A are different from those of the inflow pipe 110 and the outflow pipe 120. Specifically, the inflow pipe 110A has a common inflow portion 111A, a branch portion 112A, a first connection portion 113A, and a second connection portion 114A. The outflow pipe 120A has a third connection portion 121A, a fourth connection portion 122A, a confluence portion 123A, and a common outflow portion 124A.

[0098] like Fig.15 and Fig.16 As shown, the first connection portion 113A is provided on the cooling plate P1A instead of the inlet 156 of the cooling plate P1. The first connection portion 113A is a tube that passes through the second component 160A of the cooling plate P1A and extends toward the cooling plate P2A along the first direction Z. It should be noted that the position of the first connection portion 113A of the cooling plate P1A is different from the position of the inlet 156 of the cooling plate P1.

[0099] On the other hand, the second connection portion 114A is provided on the cooling plate P2A. Specifically, the second connection portion 114A is a pipe extending along the first direction Z from the cooling plate P2A toward the cooling plate P1A.

[0100] like Fig.16 As shown, the inlet of the second connection part 114A is arranged inside the first connection part 113A. Specifically, the second connection part 114A is inserted into the inner side of the first connection part 113A from the end of the other side Z2 of the first direction Z of the first connection part 113A. That is, at least a part of the second connection part 114A is located inside the first connection part 113A.

[0101] The first connection portion 113A is provided with the branch portion 112A. When the second connection portion 114A is inserted into the first connection portion 113A, the first connection portion 113A connects the branch portion 112A and the cooling plate P1A, and the second connection portion 114A connects the branch portion 112A and the cooling plate P2A.

[0102] The common inlet 111A is connected to the branch 112A. As a result, the refrigerant having passed through the common inlet 111A is branched into the first connection 113A and the second connection 114A by the branch 112A, and flows into the cooling plate P1A or the cooling plate P2A via the first connection 113A or the second connection 114A.

[0103] In addition, the third connection portion 121A is provided on the cooling plate P1A instead of the outlet 157 of the cooling plate P1. The third connection portion 121A is a pipe that passes through the second component 160A of the cooling plate P1A and extends toward the cooling plate P2A along the first direction Z. It should be noted that the position of the third connection portion 121A of the cooling plate P1A is different from the position of the outlet 157 of the cooling plate P1.

[0104] On the other hand, the fourth connection portion 122A is provided on the cooling plate P2A. Specifically, the fourth connection portion 122A is a pipe extending along the first direction Z from the cooling plate P2A toward the cooling plate P1A.

[0105] Similar to the first connection part 113A and the second connection part 114A, the outflow port of the fourth connection part 122A is arranged inside the third connection part 121A. Specifically, the fourth connection part 122A is inserted into the inner side of the third connection part 121A from the end of the other side Z2 of the first direction Z of the third connection part 121A. That is, at least a part of the fourth connection part 122A is located inside the third connection part 121A.

[0106] The third connection portion 121A is provided with a junction 123A. When the fourth connection portion 122A is inserted into the third connection portion 121A, the third connection portion 121A connects the junction 123A and the cooling plate P1A, and the fourth connection portion 122A connects the junction 123A and the cooling plate P2A.

[0107] In addition, a common outflow portion 124A is connected to the merging portion 123A. The merging portion 123 merges the refrigerant passing through the third connection portion 121A and the fourth connection portion 122A. The refrigerant passing through the merging portion 123A passes through the common outflow portion 124A.

[0108] In this way, by adopting a structure in which the second connection portion 114A and the fourth connection portion 122A can be inserted into the first connection portion 113A and the third connection portion 121A, respectively, the second connection portion 114A and the fourth connection portion 122A can move along the first connection portion 113A and the third connection portion 121A, respectively. In other words, the inflow pipe 110A and the outflow pipe 120A are extended and retracted in the first direction Z. That is, even in a state in which the cooling plate P1A and the cooling plate P2A are connected to each other, the cooling plate P1A or the cooling plate P2A can be easily moved along the first direction Z, and the distance between the cooling plate P1A and the cooling plate P2A can be easily expanded or reduced.

[0109] As a result, the cooling plate P2A can move relative to the cooling plate P1A. Therefore, it is easy to arrange the heat generating components between the cooling plates P1A and P2A. In addition, since the distance between the cooling plates P1A and P2A can be easily changed, the contact accuracy of the cooling plates P1A and P2A relative to the heat generating components arranged between the cooling plates P1A and P2A can be improved.

[0110] like Fig.15 and Fig.16 As shown, the second connection part 114A is provided with elastic components D1 and D2. More specifically, the elastic components D1 and D2 are provided between the inlet of the second connection part 114A and the inside of the first connection part 113A. The elastic components D1 and D2 are, for example, O-rings, seals, gaskets, etc. Fig.15 and Fig.16 In the example shown, the elastic members D1 and D2 are O-rings. The outer diameter of the O-ring is, for example, substantially the same as the width of the inside of the first connection portion 113A. The inner diameter of the O-ring is, for example, substantially the same as the outer diameter of the second connection portion 114A. Fig.15 and Fig.16 In the example shown, the elastic members D1 and D2 are arranged at a predetermined distance along the first direction Z, but the number and position of the elastic members arranged in the second connecting portion 114A are not limited to Fig.15 and Fig.16 Example shown.

[0111] On the other hand, Fig.15 As shown in FIG. 1 , elastic components D3 and D4 are disposed in the fourth connection portion 122A. More specifically, the elastic components D3 and D4 are disposed between the outlet of the fourth connection portion 122A and the interior of the third connection portion 121A. The elastic components D3 and D4 are the same as the elastic components D1 and D2, and thus their description and explanation are omitted. Fig.16 .

[0112] In this way, by configuring elastic components D1, D2, D3, and D4 between the first connection part 113A and the second connection part 114A, and between the third connection part 121A and the fourth connection part 122A, the first connection part 113A and the second connection part 114A, and between the third connection part 121A and the fourth connection part 122A can be more reliably blocked, thereby preventing the refrigerant from leaking to the outside of the cooling plate P1A and the cooling plate P2A.

[0113] It should be noted that the relationship between the first connection part 113A and the second connection part 114A and the relationship between the third connection part 121A and the fourth connection part 122A can also be reversed. That is, the inlet of the first connection part 113A can be arranged inside the second connection part 114A, and the outlet of the third connection part 121A can be arranged inside the fourth connection part 122A. In this case, the elastic components D1 and D2 are arranged between the inlet of the first connection part 113A and the inside of the second connection part 114A. The elastic components D3 and D4 are arranged between the outlet of the third connection part 121A and the inside of the fourth connection part 122A.

[0114] In the present embodiment, the cooling plate P1A, the first connection part 113A and the third connection part 121A are formed by a single component. The cooling plate P2A, the second connection part 114A and the fourth connection part 122A are formed by a single component. By making the cooling plate P1A, the first connection part 113A and the third connection part 121A, and the cooling plate P2A, the second connection part 114A and the fourth connection part 122A with the same material, the ionization caused by the cooling plate P1A, the first connection part 113A and the third connection part 121A, and the cooling plate P2A, the second connection part 114A and the fourth connection part 122A and the refrigerant can be suppressed. In addition, through the above structure, the influence of friction between the first connection part 113A and the second connection part 114A, and between the third connection part 121A and the fourth connection part 122A can be reduced, so that the movement of the cooling plate P1A or the cooling plate P2A can be made easier.

[0115] In the present embodiment, the first connection portion 113A and the second connection portion 114A are arranged on one side X1 of the second direction X and one side Y1 of the third direction Y of the cooling plate P1A. On the other hand, the third connection portion 121A and the fourth connection portion 122A are arranged on one side X1 of the second direction X and one side Y1 of the third direction Y of the cooling plate P1A. That is, the third connection portion 121A and the fourth connection portion 122A, and the third connection portion 121A and the fourth connection portion 122A are arranged adjacent to each other. Thus, in a state where the cooling plate P1A and the cooling plate P2A are connected to each other, it is easy to slide the heat generating component from the other side X2 of the second direction X or the other side Y2 of the third direction Y and arrange it between the cooling plate P1A and the cooling plate P2A.

[0116] It should be noted that the configuration of the first connection portion 113A and the second connection portion 114A and the configuration of the third connection portion 121A and the fourth connection portion 122A are not limited to the above configuration. For example, the first connection portion 113A and the second connection portion 114A, and the third connection portion 121A and the fourth connection portion 122A may also be arranged at diagonal positions of the cooling plate P1A.

[0117] Next, refer to Fig.17 The flow path of the refrigerant in the cooling plate P1A will be described. Fig.17 : is a cross-sectional view showing the internal structure of the cooling plate P1A. Fig.17 A cross section of the cooling plate P1A at a plane along the second direction X and the third direction Y is shown.

[0118] like Fig.17 As shown, the cooling plate P1A is provided with a heat sink 155 and an internal flow path Pb is formed. The internal flow path Pb is connected to the first connection part 113A and the third connection part 121A. The refrigerant passing through the first connection part 113A flows into the internal flow path Pb. The refrigerant passing through the internal flow path Pb flows out to the third connection part 121A.

[0119] Specifically, the internal flow path Pb has an upstream portion Pb1, a heat sink housing portion Pb2, and a downstream portion Pb3. The upstream portion Pb1 is arranged on the upstream side of the refrigerant flow direction relative to the heat sink housing portion Pb2. The upstream portion Pb1 connects the first connection portion 113A to the heat sink housing portion Pb2. The heat sink housing portion Pb2 houses the heat sink portion 155. The downstream portion Pb3 is arranged on the downstream side of the refrigerant flow direction relative to the heat sink housing portion Pb2. The downstream portion Pa3 connects the heat sink housing portion Pb2 to the third connection portion 121A. The refrigerant flowing in from the first connection portion 113A passes through the upstream portion Pb1, the heat sink housing portion Pb2, and the downstream portion Pb3 in sequence, and flows out from the third connection portion 121A.

[0120] (Implementation Method 2)

[0121] Next, exemplary embodiment 2 of the present disclosure is described. The second embodiment differs from embodiment 1 in that the cooling system 101 has a cooling unit U1B, and the cooling unit U1B has a cooling plate P3 different from the cooling plates P1 and P2. Hereinafter, the second embodiment will be described for matters different from the first embodiment, and the description of matters repeated in the first embodiment will be omitted.

[0122] Reference Fig.18 , a cooling system 101 including a cooling unit U1B according to an exemplary embodiment 2 of the present disclosure will be described. Fig.181 is a diagram showing an outline of a cooling system 101 having a cooling unit U1B according to Exemplary Embodiment 2 of the present disclosure.

[0123] The cooling system 101 includes a cooling unit U1B instead of the cooling unit U1, compared to the cooling system 100 of the first embodiment. The cooling unit U1B includes a cooling plate P3 instead of the cooling plates P1 and P2. The cooling plate P3 receives heat from the heat generating component and cools the heat generating component.

[0124] Next, refer to Fig.19 , the cooling unit U1B having the cooling plate P3 is described in detail. Fig.19 1 is a perspective view showing the cooling unit U1B.

[0125] like Fig.19 As shown, the cooling unit U1B has a cooling plate P3, an inflow pipe 110B, and an outflow pipe 120B. The cooling plate P3 is an example of the "third cooling plate" of the present disclosure. The cooling plate P3 is arranged on one side Z1 of the first direction Z of the heat-generating component not shown in the figure. For example, the connecting pipe M11 is connected to the inflow pipe 110B via the cooling plate P3 and the seventh connecting portion 127. In more detail, one end of the inflow pipe 110B is connected to the cooling plate P3. The other end of the inflow pipe 110B is connected to the seventh connecting portion 127. The inflow pipe 110B allows the refrigerant passing through the connecting pipe M11 and the seventh connecting portion 127 to flow into the cooling plate P3. The refrigerant that has flowed into the cooling plate P3 flows out from the outflow pipe 120B through the internal flow path not shown formed in the cooling plate P3. The connecting pipe M21 is connected to the outflow pipe 120B via the eighth connecting portion 128. In more detail, one end of the inflow pipe 110B is connected to the cooling plate P3. The other end of the inflow pipe 110B is connected to the eighth connection portion 128. The outflow pipe 120B allows the refrigerant passing through the cooling plate P3 to flow out to the eighth connection portion 128 and the connection pipe M21. For example, the outflow pipe 120B is connected to the eighth connection portion 128 in a circumferentially rotatable manner.

[0126] Next, refer to Fig.19 and Fig. 20 , the structures of the inflow pipe 110 and the outflow pipe 120 are described in detail. Fig. 20 1 is a cross-sectional view showing the structure of the inflow pipe 110 and the outflow pipe 120 . Fig. 20 A cross section at a plane passing through the central axes of the inflow pipe 110 and the outflow pipe 120 and along the first direction Z and the third direction Y is shown.

[0127] like Fig.19 and Fig. 20As shown, the cooling unit U1B further has a fifth connection portion 125 and a sixth connection portion 126. The fifth connection portion 125 and the sixth connection portion 126 are fixed to the cooling plate P3. The fifth connection portion 125 is connected to the inflow pipe 110B. The sixth connection portion 126 is connected to the outflow pipe 120B.

[0128] For example, the inflow pipe 110B and the fifth connection portion 125 extend along the third direction Y. Specifically, the fifth connection portion 125 includes: a tubular pipe portion 125A extending along the third direction Y; and an inflow port 125B that connects the pipe portion 125A to the cooling plate P3 and allows the refrigerant to flow into the cooling plate P3. The inflow port 125B is arranged in a direction intersecting the third direction Y in which the pipe portion 125A extends.

[0129] The inflow pipe 110B is arranged inside the fifth connection part 125. Specifically, the inflow pipe 110B is inserted into the inner side of the tube part 125A from the end of the tube part 125A of the fifth connection part 125 on the other side Y2 of the third direction Y. That is, at least a part of the inflow pipe 110B is located inside the tube part 125A. Therefore, the tube part 125A of the fifth connection part 125 can move in the circumferential direction relative to the inflow pipe 110B.

[0130] On the other hand, the sixth connection portion 126 includes: a tubular tube portion 126A extending along the third direction Y; and an outflow port 126B that connects the tube portion 126A to the cooling plate P3 and allows the refrigerant to flow out of the cooling plate P3. The tube portion 126A is connected to the outflow pipe 120B. The outflow port 126B is arranged in a direction intersecting the third direction Y extending from the tube portion 126A.

[0131] Since the pipe portion 125A can move in the circumferential direction relative to the inlet pipe 110B, and the outlet pipe 120B can rotate in the circumferential direction relative to the eighth connection portion 128, the cooling plate P3 can rotate with the inlet pipe 110B and the outlet pipe 120B as the rotation axis ( Fig.21 , Fig. 22 ). In other words, the cooling plate P3 is rotatable relative to the seventh connection portion 127 to which the inflow pipe 110B is connected and the eighth connection portion 128 to which the outflow pipe 120B is connected. That is, the cooling plate P3 is rotatably moved relative to the heat generating component.

[0132] Next, refer to Figure 19 to Figure 22 The rotational movement of the cooling plate P3 will be described. Fig.21 1 is a diagram showing the cooling unit U1B in which the cooling plate P3 is located at the first position T1. Fig. 22 1 is a diagram showing the cooling unit U1B in which the cooling plate P3 is located at the second position T2.

[0133] In the cooling unit U1B, the heat generating component 503 is disposed on the other side Z2 of the cooling plate P3 in the first direction Z. For example, the cooling plate P3 rotates and moves between the first position T1 and the second position T2.

[0134] For example, Fig.21 As shown, the cooling plate P3 extends in parallel with the second direction X at the first position T1. If the cooling plate P3 rotates with the inflow pipe 110B as the rotation axis, it moves to Fig. 22 The cooling plate P3 extends obliquely relative to the second direction X in the second position T2.

[0135] In this way, according to the rotation of the cooling plate P3, the distance between the cooling plate P3 and the heat generating component 503 is expanded or reduced in the first direction Z. In other words, the cooling plate P3 can move relative to the heat generating component 503 in the first direction Z. Therefore, the operation when configuring the heat generating component 503 becomes easy, and the contact accuracy of the cooling plate P3 relative to the heat generating component 503 is improved.

[0136] In addition, if Fig. 20 As shown in FIG. 1 , elastic components D5 and D6 are disposed in the inlet pipe 110B. More specifically, the elastic components D5 and D6 are disposed between the inlet pipe 110B and the inside of the tube portion 125A of the fifth connecting portion 125. The elastic components D5 and D6 are O-rings, seals, gaskets, etc. similar to the elastic components D1 to D4. Fig. 20 In the example shown, the elastic members D5 and D6 are O-rings. The outer diameter of the O-rings is, for example, substantially the same as the width of the inside of the tube portion 125A. The inner diameter of the O-rings is, for example, substantially the same as the outer diameter of the inlet tube 110B. Fig. 20 In the example shown, the elastic members D5 and D6 are arranged at a predetermined distance along the third direction Y, but the number and position of the elastic members arranged in the inlet pipe 110B are not limited to Fig. 20 Example shown.

[0137] Thus, by disposing elastic components D5 and D6 between the inflow pipe 110B and the inside of the tube portion 125A of the fifth connection portion 125, the inflow pipe 110B and the inside of the tube portion 125A of the fifth connection portion 125 can be more reliably blocked, thereby preventing the refrigerant from leaking out of the cooling plate P3.

[0138] It should be noted that the relationship between the inflow pipe 110B and the fifth connection part 125 may be reversed. That is, the tube part 125A of the fifth connection part 125 may be arranged inside the inflow pipe 110B. In this case, the elastic members D5 and D6 are arranged in the tube part 125A.

[0139] In addition, the sixth connection part 126 and the outflow pipe 120B may have the same structure as the fifth connection part 125 and the inflow pipe 110B, respectively. In addition, not only the eighth connection part 128 but also the inflow pipe 110B may be rotatably connected to the seventh connection part 127 in the circumferential direction. That is, as long as the cooling plate P3 can rotate relative to one of the fifth connection part 125 and the seventh connection part 127 and one of the sixth connection part 126 and the eighth connection part 128.

[0140] Above, the embodiments (including modified examples) of the present disclosure are described with reference to the accompanying drawings. However, the present disclosure is not limited to the above-mentioned embodiments, and can be implemented in various ways without departing from the scope of its main purpose. In addition, by appropriately combining the multiple constituent elements disclosed in the above-mentioned embodiments, various disclosed methods can be formed. For example, several constituent elements can be deleted from all the constituent elements shown in the embodiments. For example, the constituent elements in different embodiments can also be appropriately combined. For ease of understanding, the accompanying drawings are schematically shown with each constituent element as the main body, and the thickness, length, number, spacing, etc. of each constituent element shown in the drawings are sometimes different from the actual ones due to the convenience of making the drawings. In addition, the material, shape, size, etc. of each constituent element shown in the above-mentioned embodiments are examples, and are not particularly limited. Various changes can be made within the scope of the effects of the present disclosure.

[0141] For example, in the above embodiment, the heat generating component 500 includes a first heat generating component 501 and a second heat generating component 502, and the cooling plate P1 and the cooling plate P2 cool the first heat generating component 501 and the second heat generating component 502 respectively, but the present disclosure is not limited thereto. The heat generating component 500 may also include one heat generating component. Furthermore, the cooling plate P1 and the cooling plate P2 may also cool one heat generating component 500.

[0142] In the above embodiment, the heat conducting member 170 is disposed between the cooling plate P1 and the heat generating component 500 , but the present disclosure is not limited thereto, and the heat conducting member 170 may not be disposed. That is, the contact surface 151 of the cooling plate P1 may be in direct contact with the heat generating component 500 .

[0143] In addition, for example, in the above-mentioned embodiment, an example is shown in which the first connection portion 113, the branch portion 112, and the second connection portion 114 are arranged in a straight line. That is, an example is shown in which the first connection portion 113, the branch portion 112, and the second connection portion 114 are arranged between the cooling plate P1 and the cooling plate P2 in the first direction Z, and the inlet pipe 110 is formed into a roughly T-shape. However, the present disclosure is not limited to this. For example, the branch portion 112 may be arranged on the outside between the cooling plate P1 and the cooling plate P2 in the first direction Z, and the inlet pipe 110 may be formed into a roughly Y-shape. Similarly, the confluence portion 123 of the outflow pipe 120 may be arranged on the outside between the cooling plate P1 and the cooling plate P2 in the first direction Z, and the outflow pipe 120 may be formed into a roughly Y-shape.

[0144] Furthermore, the present technology can also adopt the following structures.

[0145] (1) A cooling unit comprising:

[0146] The first cooling plate and the second cooling plate are respectively arranged on both sides of the heat generating component in a first direction;

[0147] an inflow pipe that allows the refrigerant to flow into the first cooling plate and the second cooling plate; and

[0148] an outflow pipe through which the refrigerant flowing out of the first cooling plate and the second cooling plate passes,

[0149] At least a portion of the first cooling plate and at least a portion of the second cooling plate overlap in the first direction,

[0150] At least a portion of the inflow pipe and at least a portion of the outflow pipe are arranged between the first cooling plate and the second cooling plate in the first direction.

[0151] (2) The cooling unit according to (1), wherein:

[0152] The inflow pipe has:

[0153] Common inflow section;

[0154] a branch portion that branches the refrigerant passing through the common inflow portion;

[0155] A first connecting portion connecting the branch portion and the first cooling plate; and

[0156] a second connecting portion connecting the branch portion and the second cooling plate,

[0157] The outflow pipe has:

[0158] A third connecting portion connected to the first cooling plate;

[0159] a fourth connecting portion connected to the second cooling plate;

[0160] a merging portion that merges the refrigerants passing through the third connecting portion and the fourth connecting portion; and

[0161] A common outflow portion through which the refrigerant having passed through the merging portion passes.

[0162] (3) The cooling unit according to (1) or (2), wherein:

[0163] The first cooling plate has:

[0164] a contact surface, which contacts the heat generating component;

[0165] an internal flow path which is arranged to overlap with the contact surface in the first direction and through which the refrigerant passes; and

[0166] a heat sink portion, which is arranged in the internal flow path and has a plurality of heat sinks,

[0167] The cooling unit further includes a heat conducting component disposed between the contact surface and the heat generating component.

[0168] The thermally conductive member and the heat sink portion are arranged to overlap in the first direction.

[0169] (4) The cooling unit according to (3), wherein:

[0170] The first cooling plate further includes a partition portion disposed in the internal flow path and partitioning the internal flow path into a plurality of flow paths.

[0171] The heat sink is arranged in a plurality in a second direction orthogonal to the first direction.

[0172] The partition portion is disposed adjacent to the heat sink portion in a third direction that is orthogonal to the first direction and the second direction.

[0173] (5) The cooling unit according to (4), wherein:

[0174] The first cooling plate includes a first component and a second component constituting the internal flow path.

[0175] The heat sink portion is disposed on the first component,

[0176] The partition portion is disposed on the second member.

[0177] (6) A cooling system comprising:

[0178] The cooling unit according to any one of (1) to (5) above;

[0179] a pump unit configured to circulate the refrigerant in the cooling unit; and

[0180] a heat exchanger that cools the refrigerant flowing from the cooling unit,

[0181] The cooling unit, the pump unit and the heat exchanger are connected via connecting pipes, respectively.

[0182] The refrigerant circulates through the cooling unit, the pump unit, and the heat exchanger.

[0183] (7) The cooling unit according to (1), wherein:

[0184] The second cooling plate is movable relative to the first cooling plate.

[0185] (8) The cooling unit according to (7), wherein:

[0186] The inflow pipe has:

[0187] Common inflow section;

[0188] a branch portion that branches the refrigerant passing through the common inflow portion;

[0189] A first connecting portion connecting the branch portion and the first cooling plate; and

[0190] a second connecting portion connecting the branch portion and the second cooling plate,

[0191] The outflow pipe has:

[0192] A third connecting portion connected to the first cooling plate;

[0193] a fourth connecting portion connected to the second cooling plate;

[0194] a merging portion that merges the refrigerants passing through the third connecting portion and the fourth connecting portion; and

[0195] a common outflow portion through which the refrigerant having passed through the confluence portion passes,

[0196] The first connection portion, the second connection portion, the third connection portion, and the fourth connection portion extend along the first direction.

[0197] The inlet of the first connection part is arranged inside the second connection part, or the inlet of the second connection part is arranged inside the first connection part.

[0198] The outflow port of the third connection part is arranged inside the fourth connection part, or the outflow port of the fourth connection part is arranged inside the third connection part.

[0199] (9) The cooling unit according to (8), wherein:

[0200] An elastic member is arranged between the inlet of the first connection part and the interior of the second connection part, or between the inlet of the second connection part and the interior of the first connection part.

[0201] An elastic member is disposed between the outflow port of the third connection portion and the interior of the fourth connection portion, or between the outflow port of the fourth connection portion and the interior of the third connection portion.

[0202] (10) The cooling unit according to (8) or (9), wherein:

[0203] The first cooling plate, the first connecting portion, and the third connecting portion are formed by a single component.

[0204] The second cooling plate, the second connection portion, and the fourth connection portion are formed of a single member.

[0205] (11) The cooling unit according to any one of (8) to (10), wherein:

[0206] The first connection portion and the second connection portion are arranged on one side of the first cooling plate in the second direction.

[0207] The third connection portion and the fourth connection portion are disposed on one side of the second cooling plate in the second direction.

[0208] (12) The cooling unit according to any one of (8) to (11), wherein:

[0209] The first connection portion and the second connection portion are arranged on one side of the first cooling plate in the third direction.

[0210] The third connection portion and the fourth connection portion are disposed on one side of the second cooling plate in the third direction.

[0211] (13) A cooling unit comprising:

[0212] A third cooling plate, which is arranged on one side of the first direction of the heat generating component;

[0213] an inflow pipe for allowing refrigerant to flow into the third cooling plate;

[0214] an outflow pipe through which the refrigerant flowing out of the third cooling plate passes;

[0215] a fifth connection portion connected to an end portion of one side of the inflow pipe and fixed to the third cooling plate; and

[0216] a sixth connection portion connected to an end portion of one side of the outflow pipe and fixed to the third cooling plate,

[0217] The other end of the inflow pipe is connected to the seventh connection portion,

[0218] The other end of the outflow pipe is connected to the eighth connecting portion.

[0219] The third cooling plate is movable relative to the seventh connection portion and the eighth connection portion.

[0220] (14) The cooling unit according to (13), wherein:

[0221] The outflow pipe and the fifth connecting portion extend along a third direction orthogonal to the first direction.

[0222] The outflow pipe is disposed inside the fifth connecting portion.

[0223] (15) The cooling unit according to (13) or (14), wherein:

[0224] An elastic member is disposed between the outflow pipe and the interior of the fifth connection portion.

[0225] Industrial Applicability

[0226] The present disclosure may be used, for example, in cooling units and cooling systems.

[0227] Explanation of symbols

[0228] 21: Pump unit, 22: Heat exchanger, 100, 101: Cooling system, 110, 110A, 110B: Inflow pipe, 111, 111A: Common inflow part, 112, 112A: Branch part, 113, 113A: First connection part, 114, 114A: Second connection part, 120, 120A, 120B: Outflow pipe, 121, 121A: Third connection part, 122, 122A: Fourth connection part, 123, 123A: Junction part, 124, 124A: Common outflow part, 125: Fifth connection part, 150, 150A: First component, 15 1: contact surface, 155: heat sink portion, 155a: heat sink, 160, 160A: second component, 163: partition portion, 170: heat conduction component, 500, 503: heat generating component, D1, D2, D3, D4, D5, D6: elastic component, P1, P1A: cooling plate (first cooling plate), P2, P2A: cooling plate (second cooling plate), P3: cooling plate (third cooling plate), Pa, Pb: internal flow path, R2: region (flow path), U1, U2, U3, U1A, U1B: cooling unit, X: second direction, Y: third direction, Z: first direction.

Claims

1. A cooling unit, characterized in that: have: The first cooling plate and the second cooling plate are respectively arranged on both sides of the heat generating component in a first direction; an inflow pipe for allowing the refrigerant to flow into the first cooling plate and the second cooling plate; as well as an outflow pipe through which the refrigerant flowing out of the first cooling plate and the second cooling plate passes, At least a portion of the first cooling plate and at least a portion of the second cooling plate overlap in the first direction, At least a portion of the inflow pipe and at least a portion of the outflow pipe are arranged between the first cooling plate and the second cooling plate in the first direction.

2. The cooling unit according to claim 1, characterized in that The inflow pipe has: Common inflow section; a branch portion that branches the refrigerant passing through the common inflow portion; A first connecting portion connecting the branch portion and the first cooling plate; as well as a second connecting portion connecting the branch portion and the second cooling plate, The outflow pipe has: A third connecting portion connected to the first cooling plate; a fourth connecting portion connected to the second cooling plate; a merging portion that merges the refrigerants passing through the third connecting portion and the fourth connecting portion; and A common outflow portion through which the refrigerant having passed through the merging portion passes.

3. The cooling unit according to claim 1 or 2, characterized in that: The first cooling plate has: a contact surface, which contacts the heat generating component; an internal flow path which is arranged to overlap with the contact surface in the first direction and through which the refrigerant passes; and a heat sink portion, which is arranged in the internal flow path and has a plurality of heat sinks, The cooling unit further includes a heat conducting component disposed between the contact surface and the heat generating component. The thermally conductive member and the heat sink portion are arranged to overlap in the first direction.

4. The cooling unit according to claim 3, characterized in that The first cooling plate further includes a partition portion disposed in the internal flow path and partitioning the internal flow path into a plurality of flow paths. The heat sink is arranged in a plurality in a second direction orthogonal to the first direction. The partition portion is disposed adjacent to the heat sink portion in a third direction that is orthogonal to the first direction and the second direction.

5. The cooling unit according to claim 4, characterized in that The first cooling plate includes a first component and a second component constituting the internal flow path. The heat sink portion is disposed on the first component, The partition portion is disposed on the second member.

6. A cooling system, characterized in that: have: The cooling unit according to claim 1; a pump unit configured to circulate the refrigerant in the cooling unit; and a heat exchanger that cools the refrigerant flowing from the cooling unit, The cooling unit, the pump unit and the heat exchanger are connected via connecting pipes, respectively. The refrigerant circulates through the cooling unit, the pump unit, and the heat exchanger.

7. The cooling unit according to claim 1, characterized in that The second cooling plate is movable relative to the first cooling plate.

8. The cooling unit according to claim 7, characterized in that The inflow pipe has: Common inflow section; a branch portion that branches the refrigerant passing through the common inflow portion; A first connecting portion connecting the branch portion and the first cooling plate; as well as a second connecting portion connecting the branch portion and the second cooling plate, The outflow pipe has: A third connecting portion connected to the first cooling plate; a fourth connecting portion connected to the second cooling plate; a merging portion that merges the refrigerants passing through the third connecting portion and the fourth connecting portion; and a common outflow portion through which the refrigerant having passed through the confluence portion passes, The first connection portion, the second connection portion, the third connection portion, and the fourth connection portion extend along the first direction. The inlet of the first connection part is arranged inside the second connection part, or the inlet of the second connection part is arranged inside the first connection part. The outflow port of the third connection part is arranged inside the fourth connection part, or the outflow port of the fourth connection part is arranged inside the third connection part.

9. The cooling unit according to claim 8, characterized in that An elastic member is arranged between the inlet of the first connection part and the interior of the second connection part, or between the inlet of the second connection part and the interior of the first connection part. An elastic member is disposed between the outflow port of the third connection portion and the interior of the fourth connection portion, or between the outflow port of the fourth connection portion and the interior of the third connection portion.

10. The cooling unit according to claim 8, characterized in that The first cooling plate, the first connecting portion, and the third connecting portion are formed by a single component. The second cooling plate, the second connection portion, and the fourth connection portion are formed of a single member.

11. The cooling unit according to claim 8, characterized in that The first connection portion and the second connection portion are arranged on one side of the first cooling plate in the second direction. The third connection portion and the fourth connection portion are disposed on one side of the second cooling plate in the second direction.

12. The cooling unit according to claim 11, characterized in that The first connection portion and the second connection portion are arranged on one side of the first cooling plate in the third direction. The third connection portion and the fourth connection portion are disposed on one side of the second cooling plate in the third direction.

13. A cooling unit, characterized in that: have: A third cooling plate, which is arranged on one side of the first direction of the heat generating component; an inflow pipe for allowing refrigerant to flow into the third cooling plate; an outflow pipe through which the refrigerant flowing out of the third cooling plate passes; a fifth connecting portion connected to an end portion of one side of the inflow pipe and fixed to the third cooling plate; as well as a sixth connection portion connected to an end portion of one side of the outflow pipe and fixed to the third cooling plate, The other end of the inflow pipe is connected to the seventh connection portion, The other end of the outflow pipe is connected to the eighth connecting portion. The third cooling plate is movable relative to the seventh connection portion and the eighth connection portion.

14. The cooling unit according to claim 13, characterized in that The inflow pipe and the fifth connecting portion extend along a third direction orthogonal to the first direction. The inflow pipe is arranged inside the fifth connection portion.

15. The cooling unit according to claim 14, characterized in that An elastic member is disposed between the inflow pipe and the interior of the fifth connection portion.

Images