Cooling unit

Abstract

To provide a cooling unit capable of suppressing damages.SOLUTION: A cooling unit comprises a first thermal exchange member 110, and a first flow channel pipe 10. The first thermal exchange member is contacted to a first heat generation component (such as a microprocessor used for a computer). The first flow channel pipe is connected to the first thermal exchange member. The first flow channel pipe comprises a one end part 11 of the first flow channel pipe connected to the first thermal exchange member, and a first intermediate part 13 positioned between the other end part 12 of the first flow channel pipe. The first thermal exchange member comprises a first fixing part 131 fixing the first middle part of the first flow pipe. The first thermal exchange member preferably comprises a metal cold plate contacted to the first heat generation component, and a synthetic resin cover member arranged to one side of a first direction (upper direction) orthogonal to a second direction X and a third direction Y to the cold plate.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] This disclosure relates to a cooling unit.

Background Art

[0002] The cooling structure includes a support plate, a plurality of cooling plates, and a flexible refrigerant pipe (for example, Patent Document 1). A refrigerant flow path is provided inside each of the plurality of cooling plates. The refrigerant pipe connects the refrigerant flow paths of adjacent cooling plates. Each individual integrated circuit is pressed and cooled independently by each individual cooling plate.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the cooling structure of Patent Document 1, when installing the cooling unit with respect to the integrated circuit and when replacing the cooling structure installed with respect to the integrated circuit with a new cooling structure, the refrigerant pipe may get caught on the integrated circuit or the like. Therefore, the cooling structure and the integrated circuit or the like may be damaged.

[0005] This disclosure has been made in view of the above problems, and an object thereof is to provide a cooling unit capable of suppressing damage.

Means for Solving the Problems

[0006] An exemplary cooling unit of the present disclosure comprises a first heat exchange member and a first flow channel. The first heat exchange member is in contact with a first heat-generating component. The first flow channel is connected to the first heat exchange member. The first flow channel has a first intermediate portion located between one end of the first flow channel connected to the first heat exchange member and the other end of the first flow channel. The first heat exchange member has a first fixing portion that fixes the first intermediate portion of the first flow channel. [Effects of the Invention]

[0007] According to this exemplary disclosure, a cooling unit capable of suppressing damage can be provided. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 is an overall perspective view of a cooling unit according to a first embodiment of the present disclosure. [Figure 2] Figure 2 is an overall plan view of the cooling unit according to the first embodiment. [Figure 3] Figure 3 is a cross-sectional view of the first heat exchange member according to the first embodiment, when cut along the first and second directions. [Figure 4] Figure 4 is a cross-sectional view of the first heat exchange member according to the first embodiment, when cut along the first and third directions. [Figure 5] Figure 5 is a rear view of the cold plate according to the first embodiment. [Figure 6] Figure 6 is a cross-sectional view of the first heat exchange member according to the second embodiment of this disclosure, when cut along the first and third directions. [Figure 7] Figure 7 is a surface view of a cold plate according to the second embodiment. [Figure 8] Figure 8 is a cross-sectional view of the first heat exchange member according to the third embodiment of this disclosure, when cut along the first and third directions. [Figure 9] Figure 9 is a cross-sectional view of the first heat exchange member according to the fourth embodiment of this disclosure, when cut along the first and third directions. [Modes for carrying out the invention]

[0009] Hereinafter, exemplary embodiments of this disclosure will be described with reference to the drawings. For ease of understanding, in this specification, mutually orthogonal first directions Z, second direction X, and third direction Y are appropriately described. Here, the direction from the cold plate toward the cover member is referred to as "first direction Z". The direction perpendicular to the first direction Z is referred to as "second direction X". Furthermore, the direction perpendicular to both the first direction Z and the second direction X is referred to as "third direction Y".

[0010] Furthermore, one side of the first direction Z is referred to as "first direction one side (+Z direction)," and the other side as "first direction other side (-Z direction)." One side of the second direction X is referred to as "second direction one side (+X direction)," and the other side as "second direction other side (-X direction)." And one side of the third direction Y is referred to as "third direction one side (+Y direction)," and the other side as "third direction other side (-Y direction)."

[0011] Furthermore, for convenience, the first direction Z may sometimes be described as the up-down direction. For example, one side of the first direction Z (+Z direction) indicates the up direction, and the other side of the first direction Z (-Z direction) indicates the down direction. However, the up-down direction, up direction, and down direction are defined for the sake of explanation and do not need to coincide with the vertical direction. Moreover, the up-down direction is defined solely for the sake of explanation and does not limit the orientation of the cooling unit when it is used according to this disclosure. In this specification, "orthogonal directions" does not mean orthogonality in a strict sense, but includes cases where they are orthogonal to the extent that they produce the effects described in this disclosure.

[0012] <First Embodiment> An exemplary first embodiment of the cooling unit A of the present disclosure will be described. Figure 1 is an overall perspective view of the cooling unit A of the first embodiment. Figure 2 is an overall plan view of the cooling unit A of the first embodiment. As shown in Figures 1 and 2, the cooling unit A comprises a first heat exchange member 110, a first flow channel pipe 10, and a second flow channel pipe 20.

[0013] The coolant flows from the first flow path pipe 10 through the first heat exchange member 110 to the second flow path pipe 20 by means of a pump (not shown). The coolant is an example of a "refrigerant". The pump is connected to, for example, the first flow path pipe 10 or the second flow path pipe 20. In the first embodiment, the coolant is a liquid. As the coolant, for example, an antifreeze such as an ethylene glycol aqueous solution or a propylene glycol aqueous solution, or pure water or the like is used.

[0014] The first heat exchange member 110 contacts the first heat generating component. Specifically, the first heat exchange member 110 contacts the first heat generating component that is a heat source and absorbs heat from the first heat generating component. The coolant that has absorbed heat in the first heat exchange member 110 flows through the second flow path pipe 20. Exemplary first heat generating components include a microprocessor used in a computer and the like.

[0015] The first flow path pipe 10 is connected to the first heat exchange member 110. The first flow path pipe 10 is a tubular component made of synthetic resin. The first flow path pipe 10 includes one end portion 11, the other end portion 12, and the first intermediate portion 13. The first intermediate portion 13 is located between the one end portion 11 and the other end portion 12. One end portion 11 of the first flow path pipe 10 is connected to the first heat exchange member 110.

[0016] The first heat exchange member 110 includes a first fixing portion 131. The first fixing portion 131 fixes the first intermediate portion 13 of the first flow path pipe 10. In the first embodiment, the first heat exchange member 110 includes two first fixing portions 131. The two first fixing portions 131 fix two different first intermediate portions 13 respectively.

[0017] The second flow path pipe 20 is connected to the first heat exchange member 110. The second flow path pipe 20 is a tubular component made of synthetic resin. The second flow path pipe 20 includes one end portion 21 and the other end portion 22. One end portion 21 of the second flow path pipe 20 is connected to the first heat exchange member 110.

[0018] As a result, the cooling liquid flows along F1 in FIG. 2. Specifically, the cooling liquid flows through the first flow path pipe 10 and then flows to the first heat exchange member 110. When the cooling liquid flows through the first heat exchange member 110, it absorbs heat from the first heat generating component. The cooling liquid that has absorbed heat then flows to the second flow path pipe 20.

[0019] As described above with reference to FIGS. 1 and 2, in the first embodiment, the first fixing portion 131 fixes the first intermediate portion 13 of the first flow path pipe 10. As a result, it is possible to suppress the first flow path pipe 10 from being separated from the first heat exchange member 110. Therefore, when the cooling unit A is installed with respect to the first heat generating component, and when the cooling unit A installed with respect to the first heat generating component is replaced with a new cooling unit A, it is possible to suppress the first flow path pipe 10 from getting caught on other members such as the first heat generating component. As a result, it is possible to suppress damage to the cooling unit A and the first heat generating component and the like.

[0020] Subsequently, referring to FIGS. 1 to 3, the structure of the first heat exchange member 110 will be described. FIG. 3 is a cross-sectional view when the first heat exchange member 110 according to the exemplary first embodiment of the present disclosure is cut along the first direction Z and the third direction Y. As shown in FIG. 3, the first heat exchange member 110 includes a metal cold plate 120 and a synthetic resin cover member 130.

[0021] The cold plate 120 contacts the first heat generating component. The cold plate 120 is a plate made of copper or aluminum. The cold plate 120 absorbs heat from the first heat generating component and transfers the heat to the cooling liquid. For example, the cold plate 120 is a plate perpendicular to the first direction Z. The cold plate 120 is disposed on one side of the first heat generating component in the first direction Z. In other words, the upper surface of the first heat generating component contacts the lower surface of the cold plate 120.

[0022] The cover member 130 is disposed on one side of the cold plate 120 in the first direction Z. For example, the cover member 130 is a plate perpendicular to the first direction Z. In the first direction Z, a refrigerant flow path is provided between the upper surface of the cold plate 120 and the lower surface of the cover member 130140 A formation is created.

[0023] The cover member 130 includes an inlet 138 and an outlet 139. The inlet 138 and the outlet 139 are located on one side of the cover member 130 in the first direction Z. In other words, the inlet 138 and the outlet 139 are located on the upper surface of the cover member 130. More specifically, the inlet 138 is located in the center of the upper surface of the cover member 130.

[0024] The inlet 138 receives the coolant. One end 11 of the first flow channel pipe 10 is connected to the inlet 138. The inlet 138 is connected to the refrigerant flow channel 140. As a result, the coolant in the first flow channel pipe 10 flows from the inlet 138 into the refrigerant flow channel 140.

[0025] The outlet section 139 discharges the coolant. One end 21 of the second flow channel pipe 20 is connected to the outlet section 139. The outlet section 139 is connected to the refrigerant flow channel 140. As a result, the coolant in the refrigerant flow channel 140 flows out from the outlet section 139 into the second flow channel pipe 20.

[0026] Next, with reference to Figures 4 and 5, the structure of the first fixing portion 131 will be described. Figure 4 is a cross-sectional view of the first heat exchange member 110 according to an exemplary first embodiment of the present disclosure, when cut along the first direction Z and the second direction X. Figure 5 is a rear view of the cold plate 120 according to the first embodiment. As shown in Figures 4 and 5, the cover member 130 comprises two first fixing portions 131.

[0027] Each of the two first fixing portions 131 is provided with a first through hole 141. The first through hole 141 penetrates the cover member 130 along the first direction Z.

[0028] One of the two first fixing parts 131a is positioned on one side of the cover member 130 in the second direction X. The other first fixing part 131b is positioned on the other side of the cover member 130 in the second direction X.

[0029] The first fixing portion 131 further has an inclined portion 151 located on one side of the first through hole 141 in the first direction Z. The inclined portion 151 is located on one side of the first through hole 141 in the first direction Z. The inclined portion 151 is inclined toward the second direction X. In detail, the inclined portion 151 of the first fixing portion 131a is inclined toward the other side of the second direction X. Also, the inclined portion 151 of the first fixing portion 131b is inclined toward one side of the second direction X.

[0030] The cold plate 120 has two guide portions 121. Each guide portion 121 overlaps the first through hole 141 in the first direction Z by at least a portion thereof. Each guide portion 121 connects to the other end of the first through hole 141 in the first direction Z. For example, each guide portion 121 includes a second through hole 122. The second through hole 122 penetrates the cold plate 120 along the first direction Z.

[0031] The first flow channel pipe 10 comprises a first pipe 1, a second pipe 2, a third pipe 3, and two first intermediate sections 13. The first pipe 1, the second pipe 2, and the third pipe 3 are arranged in this order from upstream to downstream of the first flow channel pipe 10. One end 11 of the first flow channel pipe 10 is located downstream of the third pipe 3. The other end 12 of the first flow channel pipe 10 is located upstream of the first pipe 1. One of the two first intermediate sections 13b is located in the middle of the first pipe 1. The other first intermediate section 13a is located in the middle of the second pipe 2.

[0032] The second pipe 2 is positioned on one side of the cover member 130 in the second direction X. The first intermediate section 13a is fixed to the first fixing section 131a. More specifically, the first intermediate section 13a is fixed to the first through hole 141 using a substantially annular fixing member 150. The fixing member 150 is, for example, a cable tie or a C-shaped member. A portion of the substantially annular fixing member 150 is positioned inside the first through hole 141. A portion of the substantially annular fixing member 150 is positioned inside the guide section 121. The first intermediate section 13a is positioned in the internal space formed by the substantially annular fixing member 150. In other words, the first intermediate section 13a can be easily fixed by inserting the first fixing section 131a into the first through hole 141 and the guide section 121.

[0033] The first pipe 1 is positioned on the other side of the cover member 130 in the second direction X. The first intermediate portion 13b is fixed to the first fixing portion 131b. More specifically, the first intermediate portion 13b is fixed to the first through hole 141 using a substantially annular fixing member 150. A portion of the substantially annular fixing member 150 is positioned inside the first through hole 141. A portion of the substantially annular fixing member 150 is positioned inside the guide portion 121. The first intermediate portion 13b is positioned in the internal space formed by the substantially annular fixing member 150. In other words, the first intermediate portion 13b can be easily fixed by inserting the first fixing portion 131b into the first through hole 141 and the guide portion 121.

[0034] The third pipe 3 is positioned on one side of the cover member 130 in the first direction Z. One end 11 of the first flow channel pipe 10 is connected to the inlet 138.

[0035] As described above with reference to Figures 4 and 5, in the first embodiment, the cover member 130 is made of synthetic resin. As a result, the first fixing portion 131, the inlet portion 138, and the outlet portion 139 can be easily formed on the cover member 130.

[0036] Furthermore, the first fixing portion 131 also has an inclined portion 151. As a result, the fixing member 150 can be easily inserted into the first through hole 141.

[0037] Referring again to Figure 1, the cooling unit A of the first embodiment will be described. As shown in Figure 1, the cooling unit A further comprises a second heat exchange member 200, a third heat exchange member 300, and a third flow channel pipe 30.

[0038] The second heat exchange member 200 is in contact with the second heat-generating component. More specifically, the second heat exchange member 200 is in contact with the second heat-generating component, which is a heat source, and absorbs heat from the second heat-generating component. An example of the second heat-generating component is a memory module used in a computer.

[0039] The second heat exchange member 200 extends along the third direction Y. The second heat exchange member 200 is equipped with a plurality of refrigerant pipes. Each of the plurality of refrigerant pipes extends along the third direction Y. The plurality of refrigerant pipes are spaced apart in the second direction X. Each of the plurality of refrigerant pipes is a plate-shaped component made of a metal material with excellent thermal conductivity, such as copper or aluminum.

[0040] The third heat exchange member 300 is in contact with the third heat-generating component. More specifically, the third heat exchange member 300 is in contact with the third heat-generating component, which is a heat source, and absorbs heat from the third heat-generating component. An example of the third heat-generating component is a memory module used in a computer.

[0041] The third heat exchange member 300 has a similar configuration to the second heat exchange member 200 and extends along the third direction Y. The third heat exchange member 300 is equipped with a plurality of refrigerant pipes. Each of the plurality of refrigerant pipes extends along the third direction Y. The plurality of refrigerant pipes are spaced apart in the second direction X. Each of the plurality of refrigerant pipes is a plate-shaped component made of a metal material with excellent thermal conductivity, such as copper or aluminum.

[0042] The first heat exchange member 110 is positioned between the second heat exchange member 200 and the third heat exchange member 300 in the second direction X. The second heat exchange member 200 and the third heat exchange member 300 are connected via the third flow channel pipe 30. The third flow channel pipe 30 extends along the second direction X. The third flow channel pipe 30 is a tubular component made of resin. The third heat exchange member 300 is connected to the other end 12 of the first flow channel pipe 10.

[0043] As a result, the coolant flows along F1 in Figure 2. Specifically, the coolant flows to the second heat exchange member 200. As the coolant flows through the second heat exchange member 200, it absorbs heat from the second heat-generating component. The coolant that has absorbed heat flows to the third flow channel 30. The coolant flows through the third flow channel 30 to the third heat exchange member 300. As the coolant flows through the third heat exchange member 300, it absorbs heat from the third heat-generating component. The coolant that has absorbed heat flows to the first flow channel 10. The coolant flows through the first flow channel 10 to the first heat exchange member 110. As the coolant flows through the first heat exchange member 110, it absorbs heat from the first heat-generating component. The coolant that has absorbed heat flows to the second flow channel 20.

[0044] As a result, in the first embodiment, multiple heat-generating components can be cooled. For example, a microprocessor and multiple memory modules used in a computer can be cooled.

[0045] Referring again to Figures 1 and 2, the cooling unit A of the first embodiment will be described. As shown in Figures 1 and 2, the cooling unit A further comprises a fourth heat exchange member 400 and a fifth heat exchange member 500.

[0046] The fourth heat exchange member 400 is in contact with the fourth heat-generating component. More specifically, the fourth heat exchange member 400 is in contact with the fourth heat-generating component, which is a heat source, and absorbs heat from the fourth heat-generating component. An example of the fourth heat-generating component is a power semiconductor used in an inverter or the like.

[0047] The fourth heat exchange member 400 extends along the second direction X. The fourth heat exchange member 400 is a tubular component made of a metal material with excellent thermal conductivity, such as copper or aluminum.

[0048] The fifth heat exchange member 500 is in contact with the fifth heat-generating component. More specifically, the fifth heat exchange member 500 is in contact with the fifth heat-generating component, which is a heat source, and absorbs heat from the fifth heat-generating component. An example of the fifth heat-generating component is a power semiconductor used in an inverter or the like.

[0049] The fifth heat exchange member 500 has a similar configuration to the fourth heat exchange member 400 and extends along the second direction X. The fifth heat exchange member 500 is a tubular component made of a metal material with excellent thermal conductivity, such as copper or aluminum.

[0050] The first heat exchange member 110 is positioned between the fourth heat exchange member 400 and the fifth heat exchange member 500 in the third direction Y.

[0051] The first pipe 1 is connected to the fourth heat exchange member 400. The second pipe 2 is positioned between the fourth heat exchange member 400 and the fifth heat exchange member 500. The third pipe 3 is positioned between the fifth heat exchange member 500 and the first heat exchange member 110.

[0052] The first pipe 1 is positioned between the first heat exchange member 110 and the third heat exchange member 300 in the second direction X. Therefore, the first flow channel pipe 10 can be further prevented from getting caught on other members such as the first heat-generating component. Also, the second pipe 2 is positioned between the first heat exchange member 110 and the second heat exchange member 200 in the second direction X. Therefore, the first flow channel pipe 10 can be further prevented from getting caught on other members such as the first heat-generating component.

[0053] As a result, the coolant flows along F1 in Figure 2. Specifically, the coolant flows to the second heat exchange member 200. As the coolant flows through the second heat exchange member 200, it absorbs heat from the second heat-generating component. The coolant that has absorbed heat flows to the third flow channel 30. The coolant flows through the third flow channel 30 to the third heat exchange member 300. As the coolant flows through the third heat exchange member 300, it absorbs heat from the third heat-generating component. The coolant that has absorbed heat flows to the first pipe 1 of the first flow channel 10.

[0054] The coolant flows through the first pipe 1 to the fourth heat exchange member 400. As the coolant flows through the fourth heat exchange member 400, it absorbs heat from the fourth heat-generating component. The heat-absorbing coolant then flows to the second pipe 2. The coolant then flows through the second pipe 2 to the fifth heat exchange member 500. As the coolant flows through the fifth heat exchange member 500, it absorbs heat from the fifth heat-generating component. The heat-absorbing coolant then flows to the third pipe 3. The coolant then flows through the third pipe 3 to the first heat exchange member 110. As the coolant flows through the first heat exchange member 110, it absorbs heat from the first heat-generating component. The heat-absorbing coolant then flows to the second flow channel pipe 20.

[0055] As a result, in the first embodiment, multiple heat-generating components can be cooled. For example, a microprocessor used in a computer and multiple power semiconductors can be cooled.

[0056] Referring again to Figures 1 and 2, the cooling unit A of the first embodiment will be described. As shown in Figures 1 and 2, the cooling unit A further comprises a sixth heat exchange member 600 and a fourth flow channel pipe 40.

[0057] The sixth heat exchange member 600 is in contact with the sixth heat-generating component. More specifically, the sixth heat exchange member 600 is in contact with the sixth heat-generating component, which is a heat source, and absorbs heat from the sixth heat-generating component. The coolant that has absorbed heat in the sixth heat exchange member 600 flows through the fourth flow channel 40. An example of the sixth heat-generating component is a microprocessor used in a computer.

[0058] The sixth heat exchange member 600 has a similar configuration to the first heat exchange member 110, and comprises a metal cold plate 120 and a synthetic resin cover member 130.

[0059] The cover member 130 comprises two second fixing portions 132, an inlet portion 138, and an outlet portion 139. Each of the two second fixing portions 132 is provided with a first through-hole 141. The first through-hole 141 penetrates the cover member 130 along a first direction Z.

[0060] One of the two second fixing parts 132a is positioned on one side of the cover member 130 in the second direction X. The other second fixing part 132b is positioned on the other side of the cover member 130 in the second direction X.

[0061] The first flow channel pipe 10 further comprises two second intermediate sections 14. One of the two second intermediate sections 14a is located in the middle of the second pipe 2. The other second intermediate section 14b is located in the middle of the first pipe 1.

[0062] The second intermediate portion 14a is fixed to the second fixing portion 132a. More specifically, the second intermediate portion 14a is fixed to the first through-hole 141 using a substantially annular fixing member 150. A portion of the substantially annular fixing member 150 is positioned inside the first through-hole 141. The second intermediate portion 14a is positioned in the internal space formed by the substantially annular fixing member 150. As a result, the second pipe 2 can be prevented from separating from the cover member 130. Therefore, it is possible to prevent the first flow channel pipe 10 from getting caught on other members such as the sixth heat-generating component. Furthermore, the second pipe 2 is positioned between the sixth heat exchange member 600 and the second heat exchange member 200 in the second direction X. Therefore, it is possible to further prevent the first flow channel pipe 10 from getting caught on other members such as the sixth heat-generating component.

[0063] The second intermediate portion 14b is fixed to the second fixing portion 132b. More specifically, the second intermediate portion 14b is fixed to the first through-hole 141 using a substantially annular fixing member 150. A portion of the substantially annular fixing member 150 is positioned inside the first through-hole 141. The second intermediate portion 14b is positioned in the internal space formed by the substantially annular fixing member 150. As a result, the first pipe 1 can be prevented from separating from the cover member 130. Therefore, it is possible to prevent the first flow channel pipe 10 from getting caught on other members such as the sixth heat-generating component. Furthermore, the first pipe 1 is positioned between the sixth heat exchange member 600 and the third heat exchange member 300 in the second direction X. Therefore, it is possible to further prevent the first flow channel pipe 10 from getting caught on other members such as the sixth heat-generating component.

[0064] The sixth heat exchange member 600 is located on the other side of the third direction Y of the first heat exchange member 110, and the first heat exchange member 110 is located on one side of the third direction Y of the sixth heat exchange member 600. The other end 22 of the second flow channel pipe 20 is connected to the sixth heat exchange member 600.

[0065] The fourth flow channel pipe 40 is connected to the sixth heat exchange member 600. The fourth flow channel pipe 40 is a tubular component made of resin. The fourth flow channel pipe 40 has one end 41 and the other end 42. The one end 41 of the fourth flow channel pipe 40 is connected to the sixth heat exchange member 600.

[0066] As a result, the coolant flows along F1 in Figure 2. Specifically, the coolant flows to the second heat exchange member 200. As the coolant flows through the second heat exchange member 200, it absorbs heat from the second heat-generating component. The coolant that has absorbed heat flows to the third flow channel 30. The coolant flows through the third flow channel 30 to the third heat exchange member 300. As the coolant flows through the third heat exchange member 300, it absorbs heat from the third heat-generating component. The coolant that has absorbed heat flows to the first pipe 1 of the first flow channel 10.

[0067] The coolant flows through the first pipe 1 to the fourth heat exchange member 400. As the coolant flows through the fourth heat exchange member 400, it absorbs heat from the fourth heat-generating component. The heat-absorbing coolant then flows to the second pipe 2. The coolant then flows through the second pipe 2 to the fifth heat exchange member 500. As the coolant flows through the fifth heat exchange member 500, it absorbs heat from the fifth heat-generating component. The heat-absorbing coolant then flows to the third pipe 3. The coolant then flows through the third pipe 3 to the first heat exchange member 110. As the coolant flows through the first heat exchange member 110, it absorbs heat from the first heat-generating component. The heat-absorbing coolant then flows to the second flow channel pipe 20.

[0068] The coolant flows through the second flow channel 20 to the sixth heat exchange member 600. As the coolant flows through the sixth heat exchange member 600, it absorbs heat from the sixth heat-generating component. The coolant that has absorbed heat then flows to the fourth flow channel 40.

[0069] As a result, in the first embodiment, multiple heat-generating components can be cooled. For example, multiple microprocessors can be cooled.

[0070] <Second Embodiment> An exemplary second embodiment of the cooling unit A of the present disclosure will be described with reference to Figures 6 and 7. Figure 6 is a cross-sectional view of the first heat exchange member 110 according to the exemplary second embodiment of the present disclosure, cut along the first direction Z and the second direction X. Figure 7 is a surface view of the cold plate 2120 according to the second embodiment. The cold plate 2120 according to Embodiment 2 differs from Embodiment 1 in that it has two notches 2122. The differences between Embodiment 2 and Embodiment 1 will be mainly described below.

[0071] As shown in Figures 6 and 7, the cold plate 2120 is provided with two guide portions 121. At least a portion of the guide portion 121 overlaps the first through hole 141 in the first direction Z. The guide portion 121 is connected to the other end of the first through hole 141 in the first direction Z. For example, the guide portion 121 is provided with a notch 2122. The notch 2122 cuts out the cold plate 120 along the second direction X. As a result, the fixing member 150 can be moved out of the way in the second direction X, and contact between the fixing member 150 and other members such as the first heat-generating component can be suppressed.

[0072] <Third Embodiment> Referring to Figure 8, an exemplary third embodiment of the cooling unit A of this disclosure will be described. Figure 8 is a cross-sectional view of the first heat exchange member 110 according to the exemplary third embodiment of this disclosure, when cut along the first direction Z and the second direction X. The cold plate 3120 according to Embodiment 3 differs from Embodiment 1 in that it has two grooves 3122. The differences between Embodiment 3 and Embodiment 1 will be mainly described below.

[0073] As shown in Figure 8, the cold plate 3120 is provided with two guide portions 121. At least a portion of the guide portion 121 overlaps the first through hole 141 in the first direction Z. The guide portion 121 is connected to the other end of the first through hole 141 in the first direction Z. For example, the guide portion 121 is provided with a groove portion 3122 on one side of the cold plate 2120 in the first direction Z. The groove portion 3122 extends along the second direction X. As a result, the fixing member 150 can be moved away in the second direction X, and contact between the fixing member 150 and other members such as the first heat-generating component can be suppressed. In addition, the center position of the fixing member 150 can be moved closer to the cold plate 2120 side, and the fixing position of the first flow channel pipe 10 can be moved closer to the cold plate 2120 side.

[0074] <Fourth Embodiment> Referring to Figure 9, an exemplary fourth embodiment of the cooling unit A of this disclosure will be described. Figure 9 is a cross-sectional view of the first heat exchange member 110 according to the exemplary fourth embodiment of this disclosure, when cut along the first direction Z and the second direction X. The first fixing portion 131 according to Embodiment 4 differs from Embodiment 1 in that it includes a hook portion 145 and an opening 146. The differences between Embodiment 4 and Embodiment 1 will be mainly described below.

[0075] As shown in Figure 9, the first fixing portion 131 has a substantially annular hook portion 145 and an opening 146. The opening 146 is located on one side of the hook portion 145 in the first direction Z. The opening 146 may be provided on a part of the upper surface of the hook portion 145 or on the entire surface.

[0076] The first intermediate section 13a is fixed to the hook section 145. The first intermediate section 13a is positioned in the internal space formed by the hook section 145. As a result, the second pipe 2 can be prevented from separating from the cover member 130. Therefore, the first flow path pipe 10 can be prevented from getting caught on other members such as the first heat-generating component. As a result, the first intermediate section 13a can be easily fixed.

[0077] Embodiments of the present disclosure have been described above with reference to the drawings. However, the above embodiments are merely illustrative examples of the present disclosure, and the present disclosure is not limited to the above embodiments, but can be implemented in various forms without departing from its essence. The drawings schematically show each component for ease of understanding, and the thickness, length, number, etc. of each component shown may differ from the actual dimensions due to the convenience of drawing creation. Furthermore, the material, shape, dimensions, etc. of each component shown in the above embodiments are examples and are not particularly limited, and various modifications are possible without substantially departing from the effects of the present disclosure. The configuration of the embodiments may be modified as appropriate without exceeding the technical idea of ​​the present disclosure. Also, embodiments may be combined to the extent possible.

[0078] Furthermore, this technology can also employ the following configuration.

[0079] (1) A first heat exchange member that contacts the first heat-generating component, The first flow channel pipe connected to the first heat exchange member and Equipped with, The first flow channel pipe includes a first intermediate portion located between one end of the first flow channel pipe connected to the first heat exchange member and the other end of the first flow channel pipe. The cooling unit comprises a first heat exchange member, which includes a first fixing portion for fixing the first intermediate portion of the first flow channel tube.

[0080] (2) Further comprising a second flow channel pipe connected to the first heat exchange member, The first heat exchange member is A metal cold plate in contact with the first heating component, A synthetic resin cover member positioned on one side in the first direction relative to the cold plate, Equipped with, The cover member is The first fixing part and, The inlet into which the refrigerant flows, An outlet from which the refrigerant flows out and Equipped with, The one end of the first flow channel pipe and the inlet are connected, The cooling unit according to (1), wherein one end of the second flow channel pipe is connected to the outlet.

[0081] (3) The first fixing portion is provided with a first through hole that penetrates the cover member along the first direction, A portion of the roughly annular fixing member is placed inside the first through-hole, The cooling unit according to (2), wherein the first intermediate portion of the first flow channel tube is disposed in an internal space formed by the substantially annular fixing member.

[0082] (4) The first fixing portion further comprises an inclined portion located on one side of the first through hole in the first direction, The cooling unit according to (3), wherein the inclined portion is inclined toward the second direction perpendicular to the first direction.

[0083] (5) The cold plate is provided with a guide portion that overlaps at least a portion of the first through hole in the first direction, The cooling unit according to (3) or (4), wherein the guide portion is connected to the other end of the first through hole in the first direction.

[0084] (6) The cooling unit according to (5), wherein the cold plate is provided with the guide portion on one side in the first direction.

[0085] (7) The cooling unit according to any one of (2) to (6), wherein the first fixing portion comprises a substantially annular hook portion and an opening disposed on one side of the hook portion in the first direction.

[0086] (8) A second heat exchange member that contacts the second heat generating component, A third heat exchange member that contacts the third heat generating component and Furthermore, The first heat exchange member is positioned between the second heat exchange member and the third heat exchange member in a second direction perpendicular to the first direction. The second heat exchange member and the third heat exchange member are connected via a third flow channel pipe. The cooling unit according to any one of (2) to (7), wherein the third heat exchange member and the other end of the first flow channel pipe are connected.

[0087] (9) The cooling unit according to (8), wherein the first flow channel is positioned between the first heat exchange member and the third heat exchange member in the second direction.

[0088] (10) A fourth heat exchange member that contacts the fourth heat generating component, A fifth heat exchange member that contacts the fifth heat generating component and Furthermore, The first flow channel tube is, The first pipe connected to the fourth heat exchange member, A second pipe is positioned between the fourth heat exchange member and the fifth heat exchange member, A third pipe and a third pipe are positioned between the fifth heat exchange member and the first heat exchange member. A cooling unit according to any one of (1) to (9), comprising:

[0089] (11) A sixth heat exchange member that contacts the sixth heat generating component, The fourth flow channel pipe connected to the sixth heat exchange member and Furthermore, The first flow channel pipe further comprises a second intermediate section between one end of the first flow channel pipe and the other end of the first flow channel pipe. The sixth heat exchange member includes a second fixing portion that fixes the second intermediate portion of the first flow channel pipe, The cooling unit according to any one of (2) to (6), wherein the other end of the second flow channel pipe is connected to the sixth heat exchange member. [Explanation of Symbols]

[0090] A... Cooling unit 10. First flow channel 11...One end 12...Other end 13.. First Intermediate Section 20...Second flow channel 110...First heat exchange component 120... Cold Plate 121...guiding section 130... Cover component 131...1st fixed part 138...Inlet 139... Outlet 141...First through hole 151...Slope part 200...Second heat exchange component 300...Third heat exchange component 400...Fourth heat exchange component 500... Fifth heat exchange component 600...6th heat exchange component

Claims

1. A first heat exchange member that contacts the first heat-generating component, The first flow channel pipe and the second flow channel pipe connected to the first heat exchange member Equipped with, The first flow channel pipe includes a first intermediate portion located between one end of the first flow channel pipe connected to the first heat exchange member and the other end of the first flow channel pipe. The first heat exchange member is A first fixing part that fixes the first intermediate portion of the first flow channel tube, A metal cold plate in contact with the first heating component, A cover member made of synthetic resin is positioned on one side in the first direction relative to the cold plate. Equipped with, The cover member is The first fixing part and, The inlet into which the refrigerant flows, An outlet from which the refrigerant flows out and Equipped with, The first fixing portion is provided with a first through hole that penetrates the cover member along the first direction, The one end of the first flow channel pipe and the inlet are connected, One end of the second flow channel pipe is connected to the outlet section. A portion of the roughly annular fixing member is placed inside the first through-hole, A cooling unit in which the first intermediate portion of the first flow channel tube is disposed in an internal space formed by the substantially annular fixing member.

2. The first fixing portion further comprises an inclined portion located on one side of the first through hole in the first direction, The cooling unit according to claim 1, wherein the inclined portion is inclined toward the second direction perpendicular to the first direction.

3. The cold plate comprises the first through hole and a guide portion that overlaps at least a portion in the first direction, The cooling unit according to claim 1, wherein the guide portion is connected to the other end of the first through hole in the first direction.

4. The cooling unit according to claim 3, wherein the cold plate is provided with the guide portion on one side in the first direction.

5. A first heat exchange member that contacts the first heat generating component, The first flow channel pipe and the second flow channel pipe connected to the first heat exchange member Equipped with, The first flow channel pipe includes a first intermediate portion located between one end of the first flow channel pipe connected to the first heat exchange member and the other end of the first flow channel pipe. The first heat exchange member is A first fixing part that fixes the first intermediate portion of the first flow channel tube, A metal cold plate in contact with the first heating component, A cover member made of synthetic resin is positioned on one side in the first direction relative to the cold plate. Equipped with, The cover member is The first fixing part and, The inlet into which the refrigerant flows, An outlet from which the refrigerant flows out and Equipped with, The one end of the first flow channel pipe and the inlet are connected, One end of the second flow channel pipe is connected to the outlet section. The cooling unit comprises a substantially annular hook portion and an opening located on one side of the hook portion in the first direction.

6. A second heat exchange member that contacts the second heat-generating component, A third heat exchange member that contacts the third heat generating component and Furthermore, The first heat exchange member is positioned between the second heat exchange member and the third heat exchange member in a second direction perpendicular to the first direction. The second heat exchange member and the third heat exchange member are connected via a third flow channel pipe. The cooling unit according to claim 1 or 5, wherein the third heat exchange member and the other end of the first flow channel pipe are connected.

7. The cooling unit according to claim 6, wherein the first flow channel is arranged between the first heat exchange member and the third heat exchange member in the second direction.

8. A fourth heat exchange member that contacts the fourth heat-generating component, A fifth heat exchange member that contacts the fifth heat generating component and Furthermore, The first flow channel tube is, The first pipe connected to the fourth heat exchange member, A second pipe is positioned between the fourth heat exchange member and the fifth heat exchange member, A third pipe and a fifth heat exchange member are positioned between the fifth heat exchange member and the first heat exchange member. A cooling unit according to claim 1 or 5, comprising:

9. A sixth heat exchange member that contacts the sixth heat-generating component, The fourth flow channel pipe connected to the sixth heat exchange member and Furthermore, The first flow channel pipe further comprises a second intermediate section between the one end of the first flow channel pipe and the other end of the first flow channel pipe. The sixth heat exchange member includes a second fixing portion that fixes the second intermediate portion of the first flow channel pipe, The cooling unit according to claim 1 or 5, wherein the other end of the second flow channel pipe is connected to the sixth heat exchange member.

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