Connecting member and cooling device

Abstract

A connection member has a first member formed with a first flow path of a fluid, a second member connected to the first member and formed with a second flow path connected to the first flow path, and first and second sealing members sealing between the first and second members. A cylindrical portion extends in a first direction along the first flow path. The cylindrical portion has a first face located on an outer side in a radial direction of the cylindrical portion, and a second face extending in a second direction intersecting the first direction. The second member has a third face opposed to the first face, and a fourth face opposed to the second face. The first and second sealing members are annular members and are disposed at an outer periphery of the first or second flow path. The first sealing member is disposed between the first and third faces. The second sealing member is disposed between the second and fourth faces.

Description

Technical Field

[0001] This disclosure relates to connecting components and cooling devices. Background Technology

[0002] In the connector for connecting to a liquid port disclosed in Patent Document 1, a sealing channel is provided on the outer surface of the connector. Multiple sealing rings are provided within the sealing channel. The multiple sealing rings are arranged along the direction in which the coolant flows.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: U.S. Patent Application Publication No. 2010 / 0129140 Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] In the connector of Patent Document 1, the sealing effect of the coolant is improved by arranging multiple sealing rings along the direction in which the coolant passes through, and on the other hand, the length of the connector along the direction in which the coolant passes through becomes longer.

[0008] This disclosure was made in view of the above-mentioned problems, and its object is to provide a connecting member and a cooling device that can shorten the length of the flow path along the fluid flow.

[0009] Solution for solving the problem

[0010] An exemplary connecting member of this disclosure includes a first component, a second component, a first sealing member, and a second sealing member. A first flow path for fluid is formed in the first component. The second component is connected to the first component and forms a second flow path connected to the first flow path. The first sealing member and the second sealing member seal between the first component and the second component. The first component has a cylindrical portion extending in a first direction along the first flow path. The cylindrical portion has a first surface and a second surface. The first surface is located radially outward of the cylindrical portion. The second surface extends in a second direction intersecting the first direction. The second component has a third surface and a fourth surface. The third surface faces the first surface. The fourth surface faces the second surface. The first sealing member and the second sealing member are annular components and are disposed on the outer periphery of the first flow path or the second flow path. The first sealing member is disposed between the first surface and the third surface. The second sealing member is disposed between the second surface and the fourth surface.

[0011] The exemplary cooling device disclosed herein is a cooling device for cooling a heat-generating component. The exemplary cooling device of this disclosure has a connecting member and a cold plate. The cold plate is capable of thermal contact with the heat-generating component. The second member has a cover covering the cold plate. The first member has a connector that is detachable from the cover.

[0012] Invention Effects

[0013] According to the exemplary disclosure, it is possible to shorten the length of the flow path along the fluid flow. Attached Figure Description

[0014] Figure 1 This is a perspective view of the cooling device according to the first embodiment.

[0015] Figure 2 This is an exploded view of the cooling device according to the first embodiment.

[0016] Figure 3 It is along the cooling device Figure 2 The sectional view along line III-III shown.

[0017] Figure 4 It is along the cooling device Figure 1 The cross-sectional view along line IV-IV shown.

[0018] Figure 5 This is a schematic diagram showing the connecting member of the second embodiment.

[0019] Figure 6 This is a schematic diagram showing the connecting member of the second embodiment.

[0020] Figure 7 This is a schematic diagram showing the connecting member of the second embodiment.

[0021] Figure 8 This is a schematic diagram showing the connecting member of the second embodiment. Detailed Implementation

[0022] [First Implementation]

[0023] Hereinafter, exemplary embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be noted that in the drawings, the same or equivalent parts are labeled with the same reference numerals without repetition. In this specification, for ease of understanding, mutually orthogonal first direction Z, second direction X, and third direction Y are appropriately described. Furthermore, one side of the first direction Z is designated as first direction side Z1, and the other side of the first direction Z is designated as first direction other side Z2. Similarly, one side of the second direction X is designated as second direction side X1, and the other side of the second direction X is designated as second direction other side X2. Furthermore, one side of the third direction Y is designated as third direction side Y1, and the other side of the third direction Y is designated as third direction other side Y2. However, these directions are defined merely for ease of explanation, and the orientation of the exemplary connecting member and cooling device of the present disclosure is not limited except where a specific definition of the horizontal or vertical direction is required. Furthermore, in this specification, "orthogonal direction" also includes substantially orthogonal directions.

[0024] Reference Figures 1 to 4 The cooling device 100 including the connecting member 10 of the exemplary first embodiment will be described. Figure 1 This is a perspective view of the cooling device 100 according to the first embodiment. Figure 2 This is an exploded view of the cooling device 100. Figure 3 It is along the cooling device 100 Figure 2 The sectional view along line III-III shown. Figure 4 It is along the cooling device 100 Figure 1 The sectional view along line III-III shown.

[0025] The cooling device 100 includes a cold plate 13 and a connecting member 10. The cold plate 13 is capable of thermal contact with a heat-generating component (not shown). The cooling device 100 allows refrigerant to pass through its interior, cooling the heat-generating component by heat exchange between the heat-generating component (not shown) and the refrigerant via the cold plate 13. The cold plate 13 has a generally cuboid shape that is thinner in the first direction Z. The heat-generating component (not shown) is located on the other side Z2 of the cold plate 13 in the first direction and is capable of thermal contact with the surface of the other side Z2 of the cold plate 13 in the first direction. The cold plate 13 is made of a material with high thermal conductivity. Examples of such materials include metals such as copper or aluminum. Alternatively, the cold plate 13 can be made of fine ceramics containing aluminum nitride or silicon carbide. The refrigerant is either a liquid or a gas, an example of a fluid.

[0026] The connecting member 10 connects the cold plate 13 to external components other than the cold plate 13. The connecting member 10 has a cover 14 and one or more connectors 3. The cover 14 covers the cold plate 13. Specifically, the cover 14 covers the surface of the cold plate 13 on one side Z1 in the first direction. A flow path (not shown) for refrigerant to pass through is formed between the cold plate 13 and the cover 14. A flow path 32 (not shown) is formed in the cover 14 and is connected to the flow path (not shown) formed between the cold plate 13 and the cover 14. The flow path 32 is formed as a through hole extending through the cover 14 in the first direction Z.

[0027] The connector 3 is detachable from the cover 14. Specifically, a portion of the connector 3 is located inside the through hole of the cover 14. In the first embodiment, there are two connectors 3. Furthermore, each connector 3 is a pipe connector of the same specification. However, it is not limited to this; the number of connectors 3 may be one or more, and each connector 3 may be a pipe connector of different specifications.

[0028] A flow path 31 connected to the flow path 32 is formed in the connector 3. Specifically, each connector 3 has a flow path 31, a socket 312, a body 313, and a socket 314. The socket 312 is located inside the through hole of the cover 14. The socket 312 is tubular. The socket 312 extends along the first direction Z when located inside the through hole of the cover 14. The outer peripheral surface of the socket 312 is approximately cylindrical.

[0029] A flow path 31 is formed on the inner side of the main body 313. The main body 313 connects to a socket 312 and a socket 314. A socket 312 is provided at one end of the main body 313. A socket 314 is provided at the other end of the main body 313, opposite to the side with the socket 312. An external component is connected to the socket 314. The external component is, for example, a piping for refrigerant to pass through.

[0030] The flow path 31 extends from the end 312a of the socket 312 on the other side Z2 of the first direction through the socket 312, the body 313, and the socket 314 to the front end of the socket 314. In the first embodiment, the body 313 and the socket 314 extend in a direction different from that of the socket 312. However, it is not limited to this, and the body 313 and the socket 314 may also extend in the same direction as the socket 312 (the first direction Z).

[0031] As described above, the connecting member 10 connects the first component 11, which has a flow path 31, to the second component 12, which has a flow path 32. That is, the first component has a connector 3. The second component 12 has a cover 14. When the first component 11 is connected to the second component 12, the flow path 32 is connected to the flow path 31. The flow path 31 is an example of the first flow path. The flow path 32 is an example of the second flow path.

[0032] In the first embodiment, the first component 11 has a cylindrical portion 111 extending in a first direction Z along the flow path 31. In the cooling device 100, the inlet 312 forms the cylindrical portion 111.

[0033] The cylindrical portion 111 has a first surface 11A located radially outward in the cylindrical portion 111. In the cooling device 100, the first surface 11A is the outer peripheral surface of the inlet 312.

[0034] Furthermore, the cylindrical portion 111 has a flange portion 112 extending radially outward from the first surface 11A. The flange portion 112 extends radially outward from a position on the side opposite to the side where the cover 14 is located in the first direction Z of the cylindrical portion 111, moving away from the first direction side Z1. That is, the flange portion 112 is configured to move further away from the first direction side Z1 than the end 312a on the other side Z2 of the first direction of the cylindrical portion 111 (insert 312). Typically, the flange portion 112 is provided at the end 312b on the first direction side Z1 of the cylindrical portion 111 (insert 312). The flange portion 112 is a thinner plate in the first direction Z and extends circumferentially in the cylindrical portion 111 (insert 312). The flange portion 112 is approximately circular when viewed from above in the first direction Z.

[0035] Furthermore, the first component 11 has a second surface 11B extending along the second direction X and the third direction Y. The second surface 11B extends radially outward from the end of the first surface 11A of the cylindrical portion 111 opposite to the side where the second component 12 (cover 14) is located in the first direction Z. Specifically, the second surface 11B extends radially outward from the end 312b of the cylindrical portion 111 (insert 312) on the first direction Z1 side. In the first embodiment, the second surface 11B is provided on the side of the flange portion 112 where the second component 12 (cover 14) is located in the first direction Z.

[0036] On the other hand, the second component 12 has a third surface 12A and a fourth surface 12B. The third surface 12A faces the outer peripheral surface of the insertion port 312, which is the first surface 11A of the first component 11. Specifically, the third surface 12A is formed as part of the first direction side Z1 of the through hole in the second component 12 (cover 14) in which the flow path 32 is formed. The fourth surface 12B faces the second surface 11B of the first component 11. In the first embodiment, the fourth surface 12B is the surface of the second component 12 (cover 14) facing the first direction side Z1.

[0037] In the first embodiment, the connecting member 10 (cooling device 100) has two O-rings 41 and 42 that seal between the first component 11 (connector 3) and the second component 12 (cover 14). The O-rings 41 and 42 are annular components disposed around the outer periphery of the flow path 31 or flow path 32. The O-ring 41 is an example of a first sealing member. The O-ring 42 is an example of a second sealing member.

[0038] O-ring 41 is disposed between the first surface 11A of the first component 11 (connector 3) and the third surface 12A of the second component 12 (cover 14). With the connector 3's insertion port 312 inside the through hole of the cover 14, O-ring 41 contacts the first surface 11A and the third surface 12A, sealing the area between them. O-ring 42 is disposed between the second surface 11B of the first component 11 (connector 3) and the fourth surface 12B of the second component 12 (cover 14). With the connector 3's insertion port 312 inside the through hole of the cover 14, O-ring 42 contacts the second surface 11B and the fourth surface 12B, sealing the area between them.

[0039] In this first embodiment, O-rings 41 and 42 can be positioned radially separated from each other on the cylindrical portion 111 and at the same position in the first direction Z. Therefore, the gap formed along the first direction Z between the first component 11 (connector 3) and the second component 12 (cover 14) is sealed by O-ring 41, and the gaps formed along the second direction X and the third direction Y are sealed by O-ring 42. As a result, compared to the case where the O-rings are arranged along the first direction Z, a double seal can be achieved between the first component 11 (connector 3) and the second component 12 (cover 14), while shortening the length of the connecting member 10 along the first direction Z.

[0040] For example, an O-ring 41 is accommodated in a first accommodating space 51. The first accommodating space 51 is formed by at least a first surface 11A and a third surface 12A. In a first embodiment, the first accommodating space 51 is provided in the first component 11 (connector 3). Specifically, the first accommodating space 51 is formed by the outer peripheral surface of the cylindrical portion 111 (insert 312), i.e., the first surface 11A, the second surface 11B provided in the flange portion 112, and the surface 11C of the flange 312f extending radially outward from the end 312a of the first component 11 (connector 3) on the first direction side Z1, forming a groove extending along the outer peripheral surface of the cylindrical portion 111 (insert 312). Specifically, in addition to being formed by the first surface 11A, which serves as the bottom of the groove, the first accommodating space 51 is also formed by the second surface 11B and the surface 11C, which serve as the sidewall portion of the groove. An O-ring 41 is disposed in the groove formed by the first surface 11A, the second surface 11B, and the surface 11C. Furthermore, with the insertion port 312 of the connector 3 located inside the through hole of the cover 14, the third surface 12A covers the side of the O-ring 41 opposite to the side of the first surface 11A, forming a first receiving space 51.

[0041] The O-ring 42 is accommodated in the second receiving space 52. The second receiving space 52 is formed by at least the second surface 11B and the fourth surface 12B. In the first embodiment, the second receiving space 52 is provided in the second component 12 (cover 14). Specifically, the second receiving space 52 is formed as an annular groove excavated from the surface of the cover 14 facing the first direction Z1 to the other side of the first direction Z2. Specifically, in addition to being formed by the fourth surface 12B, which serves as the bottom of the groove, the second receiving space 52 is also formed by side wall surfaces 12C and 12D, which serve as side walls of the groove. The side wall surface 12C is located inside the cylindrical portion 111 in the radial direction relative to the fourth surface 12B. The side wall surface 12D is located outside the cylindrical portion 111 in the radial direction relative to the fourth surface 12B. The O-ring 42 is disposed in the groove formed by the fourth surface 12B, the side wall surface 12C, and the side wall surface 12D. Furthermore, with the insertion port 312 of the connector 3 located inside the through hole of the cover 14, the second surface 11B covers the side of the O-ring 42 opposite to the side of the fourth surface 12B, forming a second receiving space 52.

[0042] In the first embodiment, the second surface 11B forming the first receiving space 51 and the second surface 11B forming the second receiving space 52 are located at the same position in the first direction Z. Therefore, the first receiving space 51 and the second receiving space 52 can be formed without providing a recess or protrusion along the first direction Z on the second surface 11B. As a result, the shape of the first component 11 (connector 3) having the second surface 11B becomes simple, and the first component 11 (connector 3) can be easily manufactured.

[0043] For example, the thickness of O-ring 41 is different from that of O-ring 42. In the first embodiment, by selecting the thickness of O-ring 41 and O-ring 42 according to the diameter of the cylindrical portion 111 or the length in the first direction Z, the connecting member 10 can be compactly formed while maintaining the sealing effect of O-ring 41 and O-ring 42. In particular, when the thickness of O-ring 42 is thinner than that of O-ring 41, the radial length of the first component 11 (joint 3) can be shortened.

[0044] In the first embodiment, the flange portion 112 is fastened and fixed to the second component 12 (cover 14) by fastening member B1 such as screws.

[0045] Specifically, it has a fastened portion 113 that is fastened to the fourth surface 12B of the second component 12 (cover 14). The fastened portion 113 is a through hole that passes through the flange portion 112 in the first direction Z. A portion of the fastening member B1 is located in the fastened portion 113. For example, the cross-sectional area of ​​the fastened portion 113 on the first direction side Z1 is larger than the cross-sectional area of ​​the fastened portion 113 on the other side Z2 in the first direction. The cross-sectional area of ​​the fastened portion 113 on the other side Z2 in the first direction is a size that allows the threaded portion of the fastening member B1 to pass through but prevents the head of the fastening member B1 from passing through.

[0046] Thus, the first component 11 (connector 3) is fastened and fixed to the second component 12 (cover 14). Therefore, no other components are needed to fix the first component 11 (connector 3) to the second component 12 (cover 14). Therefore, the number of components required to connect the first component 11 (connector 3) and the second component 12 (cover 14) can be reduced.

[0047] [Second Implementation]

[0048] Next, the connecting member of the exemplary second embodiment will be described. The difference between the second embodiment and the first embodiment lies in the connecting object of the connecting member. Hereinafter, the differences between the second embodiment and the first embodiment will be described, and the descriptions of matters repeated in the first embodiment will be omitted.

[0049] Reference Figure 5 The connecting member 10a of the exemplary second embodiment will be described. Figure 5 This is a schematic diagram illustrating the connecting member 10a of an exemplary second embodiment.

[0050] For example, the connecting member 10a is used to connect the pipe P1 forming the flow path 31 and the pipe P2 forming the flow path 32. The pipe P1 has a first component 11a. The first component 11a is provided at the end of the pipe P1 on the other side Z2 in the first direction. The pipe P2 has a second component 12a. The second component 12a is provided at the end of the pipe P2 on one side Z1 in the first direction. The first component 11a is the same as the first component 11 in the first embodiment, except that it does not have a fastening portion 113 and the shape of the second surface 11B is different. The second component 12a is the same as the second component 12, except that the shape of the second receiving space 52 is different.

[0051] Specifically, the second component 12a has two protrusions 12E and 12F extending from the fourth surface 12B toward the first direction Z1. The protrusions 12E and 12F are annular and disposed on the outer periphery of the flow path 31 or flow path 32. The protrusions 12E and 12F are arranged radially in the cylindrical portion 111. Specifically, the protrusion 12F is located radially outward of the protrusion 12E. An O-ring 42 is disposed between the protrusions 12E and 12F. That is, a second receiving space 52 is formed between the protrusions 12E and 12F. On the other hand, on the surface of the first component 11a opposite to the fourth surface 12B of the second component 12a, an annular groove corresponding to the protrusions 12E and 12F is formed. The groove formed on the second surface 11B of the first component 11a is recessed downward toward the first direction Z1. The width of the groove formed on the second surface 11B of the first component 11a is approximately the same as the radial length of the protrusion 12E to the protrusion 12F along the cylindrical portion 111. The depth of the groove formed on the second surface 11B of the first component 11a is approximately the same as the length of the protrusions 12E and 12F along the first direction Z.

[0052] [Variation Example 1]

[0053] Next, refer to Figure 6 The connecting member 10b of the exemplary second embodiment will be described. Figure 6 This is a schematic diagram illustrating the connecting member 10b of an exemplary second embodiment.

[0054] Compared to connecting member 10a, connecting member 10b has different shapes for the first receiving space 51 and the second receiving space 52. Specifically, connecting member 10b has a first component 11b and a second component 12b. In connecting member 10b, the first receiving space 51 is provided in the second component 12b. The second receiving space 52 is provided in the first component 11b. That is, in connecting member 10b, the first receiving space 51 is formed as an annular groove excavated radially outward from the cylindrical portion 111 on the surface of the second component 12b opposite to the first surface 11A of the first component 11b. On the other hand, in connecting member 10b, the first receiving space 51 is formed as an annular groove excavated downward from the other side Z2 in the first direction on the surface of the first component 11b opposite to the fourth surface 12B of the second component 12b.

[0055] [Modification Example 2]

[0056] Next, refer to Figure 7 The connecting member 10c of the exemplary second embodiment will be described. Figure 7 This is a schematic diagram illustrating a connecting member 10c according to an exemplary second embodiment. The connecting member 10c differs from the connecting member 10a in the shapes of its first and second components. Specifically, the connecting member 10c has a first component 11c and a second component 12c. A second receiving space 52 is provided in the second component 12c. The second receiving space 52 is formed as an annular groove excavated from a surface of the second component 12c facing a first direction Z1 towards another first direction Z2.

[0057] On the other hand, the first component 11c does not have a flange 112, but has a second surface 11B. In the first component 11c, the second surface 11B is a surface that extends radially outward from the first surface 11A of the cylindrical portion 111 and faces the other side Z2 in the first direction. In this way, if the second surface 11B is provided on the radially outward side of the cylindrical portion 111, the contact area between the first component 11c and the second component 12c becomes larger, making it difficult for fluid to pass between the first component 11c and the second component 12c. As a result, the sealing effect of the fluid between the first component 11c and the second component 12c is further enhanced.

[0058] [Modification Example 3]

[0059] Next, refer to Figure 8 The connecting member 10d of the exemplary second embodiment will be described. Figure 8This is a schematic diagram illustrating a connecting member 10d according to an exemplary second embodiment. The connecting member 10d has a first component 11d and a second component 12d. The first component 11d has a first surface 11A and a second surface 11B. The second surface 11B of the first component 11d extends radially inward toward the other side Z2 of the first direction from the end of the cylindrical portion 111 and faces toward the other side Z2 of the first direction. A first receiving space 51 is provided on the first surface 11A of the first component 11d. A second receiving space 52 is provided on the second surface 11B of the first component 11d. Therefore, in the connecting member 10d, the O-ring 42 is located radially inward of the cylindrical portion 111 compared to the O-ring 41.

[0060] In this case, the gap formed along the first direction Z between the first component 11d and the second component 12d is also sealed by the O-ring 41, and the gaps formed along the second direction X and the third direction Y are also sealed by the O-ring 42. As described above, the connecting member 10d of the exemplary second embodiment has a first component 11d with a flow path 31, a second component 12d with a flow path 32, and O-rings 41 and 42 sealing the gap between the first component 11d and the second component 12d. The first component 11d has a cylindrical portion 111 extending along the first direction Z. The cylindrical portion 111 has a first surface 11A and a second surface 11B. The second component 12d has a third surface 12A and a fourth surface 12B. The O-ring 41 is disposed between the first surface 11A and the third surface 12A. The O-ring 42 is disposed between the second surface 11B and the fourth surface 12B. Therefore, compared to arranging the O-rings along the first direction Z, it is possible to double seal between the first component 11d and the second component 12d while shortening the length of the connecting member 10 along the first direction Z.

[0061] The embodiments of this disclosure have been described above with reference to the accompanying drawings. However, this disclosure is not limited to the embodiments described above and can be implemented in various ways without departing from its spirit. Furthermore, the various constituent elements disclosed in the above embodiments can be appropriately modified. For example, one of the constituent elements shown in one embodiment can be added to the constituent elements of other embodiments, or several constituent elements shown in one embodiment can be deleted from the embodiments.

[0062] Furthermore, for ease of understanding, the accompanying drawings are schematically illustrated with each component as the main element. The thickness, length, number, and spacing of each component in the drawings may sometimes differ from the actual dimensions for ease of fabrication. Moreover, the structure of each component shown in the above embodiment is merely an example and is not particularly limited; various modifications can certainly be made without substantially departing from the effects of this disclosure.

[0063] It should be noted that this technology can have the following configuration.

[0064] (1) A connecting member having: a first component forming a first flow path of fluid; a second component connected to the first component and forming a second flow path connected to the first flow path; and a first sealing member and a second sealing member sealing between the first component and the second component, the first component having a cylindrical portion extending in a first direction along the first flow path, the cylindrical portion having: a first surface located on the outer side in the radial direction of the cylindrical portion; and a second surface extending in a second direction intersecting the first direction, the second component having: a third surface facing the first surface; and a fourth surface facing the second surface, the first sealing member and the second sealing member being annular components disposed on the outer periphery of the first flow path or the second flow path, the first sealing member being disposed between the first surface and the third surface, and the second sealing member being disposed between the second surface and the fourth surface.

[0065] (2) The connecting member according to (1), wherein the second surface extends radially outward from the end of the first surface on the side opposite to the side where the second component is located in the first direction.

[0066] (3) The connecting member according to (1) or (2), wherein the cylindrical portion has a flange portion extending outward from the first surface in the radial direction, the second surface is disposed on the side of the flange portion where the second component is located in the first direction, and the flange portion has a fastened portion fastened to the fourth surface.

[0067] (4) The connecting member according to any one of (1) to (3), wherein at least the first surface, the second surface and the third surface form a first receiving space for receiving the first sealing member, and at least the second surface and the fourth surface form a second receiving space for receiving the first sealing member, wherein the second surface forming the first receiving space and the second surface forming the second receiving space are located at the same position in the first direction.

[0068] (5) The connecting member according to any one of (1) to (4), wherein the thickness of the first sealing member is different from that of the second sealing member.

[0069] (6) A cooling device for cooling a heat-generating component, the cooling device having: a connecting member of any one of (1) to (5); and a cold plate capable of thermally contacting the heat-generating component, the second member having a cover covering the cold plate, and the first member having a connector detachable from the cover.

[0070] This disclosure can be applied to the field of connecting components.

Claims

1. A connecting member, the connecting member having: The first component forms a first flow path for the fluid. The second component is connected to the first component and forms a second flow path connected to the first flow path; as well as A first sealing member and a second sealing member seal the space between the first component and the second component. The first component has a cylindrical portion extending in a first direction along the first flow path. The cylindrical portion has: The first face is located on the outer side radially of the cylindrical portion; and The second side extends in a second direction that intersects with the first direction. The second component has: The third side is opposite to the first side; and The fourth side is opposite to the second side. The first sealing member and the second sealing member are annular components, disposed on the outer periphery of the first flow path or the second flow path. The first sealing member is disposed between the first surface and the third surface. The second sealing member is disposed between the second surface and the fourth surface.

2. The connecting member according to claim 1, wherein, The second surface extends radially outward from the end of the first surface on the side opposite to the side where the second component is located in the first direction.

3. The connecting member according to claim 2, wherein, The cylindrical portion has a flange portion extending outward from the first surface in the radial direction. The second surface is disposed on the side of the flange portion where the second component is located in the first direction. The flange portion has a fastened portion that is fastened to the fourth surface.

4. The connecting member according to claim 2 or 3, wherein, A first receiving space for accommodating the first sealing member is formed by at least the first surface, the second surface, and the third surface. At least the second surface and the fourth surface form a second receiving space for accommodating the first sealing member. The second surface forming the first accommodating space and the second surface forming the second accommodating space are located at the same position in the first direction.

5. The connecting member according to any one of claims 1 to 3, wherein, The thickness of the first sealing member is different from that of the second sealing member.

6. A cooling device for cooling a heat-generating component, the cooling device comprising: The connecting member according to any one of claims 1 to 3; and The cold plate can make thermal contact with the heat-generating component. The second component has a cover that covers the cold plate. The first component has a connector that can be detached from the cover.

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