Connection member and cooling device

Abstract

This connection member has: a first component in which a first flow path for a fluid is formed; a second component which is connected to the first component and in which a second flow path connected to the first flow path is formed; and a first sealing member and a second sealing member that create a seal between the first component and the second component. The connection member also has a cylinder part extending along a first direction in which the first flow path extends. The cylindrical part has a first surface positioned on the outer side of the cylindrical part in the radial direction, and a second surface extending in a second direction intersecting the first direction. The second component has a third surface facing the first surface and a fourth surface facing the second surface. The first sealing member and the second sealing member are annular members 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.

Description

Connection member and cooling device

[0001] The present disclosure relates to a connection member and a cooling device.

[0002] The connector for connecting to the liquid port disclosed in Patent Document 1 has a sealing channel on the outer surface of the connector. A plurality of sealing rings are provided within the sealing channel. The plurality of sealing rings are arranged in a line along the direction in which the coolant passes through.

[0003] US Patent Application Publication No. 2010 / 0129140

[0004] In the connector of Patent Document 1, by arranging multiple sealing rings in a line along the direction in which the coolant passes through, the sealing effect for the coolant is improved, but the length of the connector along the direction in which the coolant passes through becomes longer.

[0005] The present disclosure has been made in consideration of the above-mentioned problems, and its purpose is to provide a connecting member and a cooling device that can shorten the length along the flow path through which the fluid flows.

[0006] An exemplary connecting member of the present disclosure includes a first part, a second part, a first sealing member, and a second sealing member. A first fluid flow path is formed in the first part. The second part is connected to the first part and forms a second fluid flow path connected to the first fluid flow path. The first sealing member and the second sealing member seal between the first part and the second part. The first part has a cylindrical portion extending along a first direction in which the first fluid flow path extends. The cylindrical portion has a first surface and a second surface. The first surface is located radially outward of the cylindrical portion. The second part extends in a second direction intersecting with the second surface in the first direction. The second part 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 members and are arranged on the outer periphery of the first fluid flow path or the second fluid flow path. The first sealing member is arranged between the first surface and the third surface. The second sealing member is disposed between the second surface and the fourth surface.

[0007] An exemplary cooling device of the present disclosure is a cooling device for cooling a heat-generating component. The exemplary cooling device of the present disclosure includes a connecting member and a cold plate. The cold plate is capable of thermally contacting the heat-generating component. The second component includes a cover that covers the cold plate. The first component includes a joint that is detachable from the cover.

[0008] Exemplary embodiments of the present disclosure allow for a reduction in the length along which fluid flows.

[0009] FIG. 1 is a perspective view showing a cooling device according to a first embodiment. FIG. 2 is an exploded view of the cooling device according to the first embodiment. FIG. 3 is a cross-sectional view of the cooling device taken along line III-III shown in FIG. 2. FIG. 4 is a cross-sectional view of the cooling device taken along line IV-IV shown in FIG. 1. FIG. 5 is a schematic view showing a connecting member according to a second embodiment. FIG. 6 is a schematic view showing a connecting member according to the second embodiment. FIG. 7 is a schematic view showing a connecting member according to the second embodiment. FIG. 8 is a schematic view showing a connecting member according to the second embodiment.

[0010] First Embodiment Hereinafter, exemplary embodiments of the present disclosure will be described with reference to the drawings. Note that identical or corresponding parts in the drawings are designated by the same reference numerals, and description thereof will not be repeated. In this specification, for ease of understanding, a first direction Z, a second direction X, and a third direction Y, which are mutually orthogonal, are appropriately described. Furthermore, one side of the first direction Z will be described as a first direction side Z1, and the other side of the first direction Z will be described as a first direction other side Z2. Furthermore, one side of the second direction X will be described as a second direction side X1, and the other side of the second direction X will be described as a second direction other side X2. Furthermore, one side of the third direction Y will be described as a third direction side Y1, and the other side of the third direction Y will be described as a third direction other side Y2. However, these directions are defined merely for convenience of description, and unless it is particularly necessary to define horizontal and vertical directions, the orientation of the exemplary connecting member and cooling device of the present disclosure during use is not limited. In addition, in this specification, the term "orthogonal direction" also includes a direction that is approximately orthogonal.

[0011] A cooling device 100 including a connecting member 10 according to a first exemplary embodiment will be described with reference to Figures 1 to 4. Figure 1 is a perspective view showing the cooling device 100 according to the first embodiment. Figure 2 is an exploded view of the cooling device 100. Figure 3 is a cross-sectional view of the cooling device 100 taken along line III-III shown in Figure 2. Figure 4 is a cross-sectional view of the cooling device 100 taken along line IV-IV shown in Figure 1.

[0012] The cooling device 100 includes a cold plate 13 and a connecting member 10. The cold plate 13 is in thermal contact with a heat-generating component (not shown). The cooling device 100 cools the heat-generating component by passing a refrigerant through the interior of the cooling device 100 and performing heat exchange between the refrigerant and the heat-generating component (not shown) via the cold plate 13. The cold plate 13 has a thin, approximately rectangular parallelepiped shape 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 in thermal contact with the surface of the cold plate 13 on the other side Z2 in the first direction. The cold plate 13 is made of a highly thermally conductive material. 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 may be a liquid or gas and is an example of a fluid.

[0013] The connecting member 10 connects the cold plate 13 to an external component other than the cold plate 13. The connecting member 10 has a cover 14 and one or more joints 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) through which a refrigerant passes is formed between the cold plate 13 and the cover 14. The cover 14 has a flow path 32 formed therein that connects 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 that penetrates the cover 14 in the first direction Z.

[0014] The joint 3 is detachable from the cover 14. Specifically, a portion of the joint 3 is located inside the through-hole of the cover 14. In the first embodiment, there are two joints 3. The joints 3 are pipe joints with the same specifications. However, the number of joints 3 is not limited to this, and may be one or three or more, and the joints 3 may be pipe joints with different specifications.

[0015] The joints 3 are formed with a flow path 31 that connects to the flow path 32. Specifically, each joint 3 has the flow path 31, a spigot 312, a body 313, and a spigot 314. The spigot 312 is located inside the through-hole of the cover 14. The spigot 312 has a tubular shape. When located inside the through-hole of the cover 14, the spigot 312 extends in the first direction Z. The outer peripheral surface of the spigot 312 is generally cylindrical.

[0016] The main body 313 has a flow path 31 formed inside it. The main body 313 connects the spigot 312 and the spigot 314. The spigot 312 is provided at one end of the main body 313. The spigot 314 is provided at the other end of the main body 313 opposite to the end where the spigot 312 is provided. An external component is connected to the spigot 314. The external component is, for example, a pipe through which a refrigerant passes.

[0017] The flow path 31 extends from an end 312a of the spigot 312 on the other side Z2 in the first direction, through the spigot 312, the main body 313, and the spigot 314, and reaches the tip of the spigot 314. In the first embodiment, the main body 313 and the spigot 314 extend in a direction different from that of the spigot 312. However, this is not limiting, and the main body 313 and the spigot 314 may extend in the same direction (first direction Z) as the spigot 312.

[0018] As described above, the connecting member 10 connects the first component 11, in which the flow path 31 is formed, to the second component 12, in which the flow path 32 is formed. That is, the first component has the joint 3. The second component 12 has the cover 14. When the first component 11 and the second component 12 are connected, the flow path 32 is connected to the flow path 31. The flow path 31 is an example of a first flow path. The flow path 32 is an example of a second flow path.

[0019] In the first embodiment, the first component 11 has a cylindrical portion 111 that extends along the first direction Z in which the flow path 31 extends. In the cooling device 100, the spigot 312 forms the cylindrical portion 111.

[0020] Cylindrical portion 111 has a first surface 11A located on the outer side in the radial direction of cylindrical portion 111. In cooling device 100, first surface 11A is the outer peripheral surface of spigot 312.

[0021] The cylindrical portion 111 also has a flange 112 extending radially outward from the first surface 11A. The flange 112 extends radially outward from a position away from the end of the cylindrical portion 111 opposite the side where the cover 14 is located in the first direction Z, toward the first direction side Z1. In other words, the flange 112 is positioned farther toward the first direction side Z1 than the end 312a of the cylindrical portion 111 (spout 312) on the second direction side Z2 in the first direction. Typically, the flange 112 is provided at the end 312b of the cylindrical portion 111 (spout 312) on the first direction side Z1. The flange 112 is a thin plate-like member in the first direction Z and expands in the circumferential direction of the cylindrical portion 111 (spout 312). The flange 112 is substantially circular in a plan view from the first direction Z.

[0022] Furthermore, the first component 11 has a second surface 11B extending in the second direction X and the third direction Y. The second surface 11B extends radially outward from an end of the first surface 11A of the tubular portion 111 opposite the side on which the second component 12 (cover 14) is located in the first direction Z. Specifically, the second surface 11B extends radially outward from an end 312b on one side Z1 in the first direction of the tubular portion 111 (spigot 312). In the first embodiment, the second surface 11B is provided on the side of the flange portion 112 on which the second component 12 (cover 14) is located in the first direction Z.

[0023] 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 spigot 312, which is the first surface 11A of the first component 11. Specifically, the third surface 12A is formed in a part of the through hole, in which the flow path 32 is formed in the second component 12 (cover 14), on the one side Z1 in the first direction. The fourth surface 12B faces the second surface 11B of the first component 11. In the first embodiment, the fourth surface 12B is a surface of the second component 12 (cover 14) facing the one side Z1 in the first direction.

[0024] 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 (joint 3) and the second component 12 (cover 14). The O-rings 41 and 42 are each annular members and are disposed on the outer periphery of the flow path 31 or the 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.

[0025] The O-ring 41 is disposed between the first surface 11A of the first component 11 (joint 3) and the third surface 12A of the second component 12 (cover 14). When the spigot 312 of the joint 3 is positioned inside the through-hole of the cover 14, the O-ring 41 contacts the first surface 11A and the third surface 12A, sealing the gap between the first surface 11A and the third surface 12A. The O-ring 42 is disposed between the second surface 11B of the first component 11 (joint 3) and the fourth surface 12B of the second component 12 (cover 14). When the spigot 312 of the joint 3 is positioned inside the through-hole of the cover 14, the O-ring 42 contacts the second surface 11B and the fourth surface 12B, sealing the gap between the second surface 11B and the fourth surface 12B.

[0026] As described above, in the first embodiment, the O-rings 41 and 42 can be disposed at positions spaced apart from each other in the radial direction of 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 (joint 3) and the second component 12 (cover 14) is sealed by the O-ring 41, and the gaps formed along the second direction X and the third direction Y are sealed by the O-ring 42. As a result, compared to a case in which the O-rings are disposed side by side in the first direction Z, the length of the connecting member 10 along the first direction Z can be shortened while doubly sealing the gap between the first component 11 (joint 3) and the second component 12 (cover 14).

[0027] For example, the O-ring 41 is accommodated in the first accommodation space 51. The first accommodation space 51 is defined by at least the first surface 11A and the third surface 12A. In the first embodiment, the first accommodation space 51 is provided in the first component 11 (joint 3). In detail, the first accommodation space 51 is defined by the first surface 11A, which is the outer peripheral surface of the tubular portion 111 (spigot 312), the second surface 11B, which is provided on the flange portion 112, and a surface 11C, on the one side Z1 in the first direction, of a flange 312f, which extends radially outward from the end 312a, on the other side Z2 in the first direction, of the first component 11 (joint 3), and is formed as a groove extending along the outer peripheral surface of the tubular portion 111 (spigot 312). Specifically, the first housing space 51 is defined by the first surface 11A, which is the bottom of the groove, and the second surface 11B and surface 11C, which are side walls of the groove. The O-ring 41 is disposed in the groove defined by the first surface 11A, the second surface 11B, and surface 11C. Furthermore, when the spigot 312 of the fitting 3 is positioned inside the through-hole of the cover 14, the third surface 12A covers the side of the O-ring 41 opposite to the first surface 11A, thereby defining the first housing space 51.

[0028] The O-ring 42 is accommodated in the second accommodating space 52. The second accommodating space 52 is defined by at least the second surface 11B and the fourth surface 12B. In the first embodiment, the second accommodating space 52 is provided in the second component 12 (cover 14). Specifically, the second accommodating space 52 is formed as an annular groove dug from the surface of the cover 14 facing the first direction side Z1 to the first direction side Z2. Specifically, the second accommodating space 52 is defined by a fourth surface 12B, which is the bottom of the groove, and side wall surfaces 12C and 12D, which are side wall portions of the groove. The side wall surface 12C is located inward relative to the fourth surface 12B in the radial direction of the cylindrical portion 111. The side wall surface 12D is located outward relative to the fourth surface 12B in the radial direction of the cylindrical portion 111. 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, when the spigot 312 of the joint 3 is positioned inside the through-hole of the cover 14, the second surface 11B covers the side of the O-ring 42 opposite to the fourth surface 12B side, and a second housing space 52 is formed.

[0029] In the first embodiment, the second surface 11B that forms the first accommodating space 51 and the second surface 11B that forms the second accommodating space 52 are located at the same position in the first direction Z. Therefore, it is possible to form the first accommodating space 51 and the second accommodating space 52 without providing a recess or protrusion that has a distance therebetween on the second surface 11B along the first direction Z. As a result, the shape of the first component 11 (joint 3) that has the second surface 11B is simplified, and the first component 11 (joint 3) can be easily manufactured.

[0030] For example, the thickness of the O-ring 41 is different from the thickness of the O-ring 42. In the first embodiment, by selecting the thicknesses of the O-rings 41 and 42 according to the diameter of the cylindrical portion 111 or the length in the first direction Z, it is possible to form the connecting member 10 compactly while maintaining the sealing effect of the O-rings 41 and 42. In particular, when the thickness of the O-ring 42 is thinner than the thickness of the O-ring 41, the length of the first component 11 (joint 3) in the radial direction can be shortened.

[0031] In the first embodiment, the flange portion 112 is fastened and fixed to the second component 12 (cover 14) by a fastening member B1 such as a screw.

[0032] Specifically, the second component 12 (cover 14) has a fastened portion 113 that is fastened to the fourth surface 12B. The fastened portion 113 is a through hole that penetrates 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 one side Z1 in the first direction 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 large enough to allow the threaded portion of the fastening member B1 to pass through but not the head of the fastening member B1 to pass through.

[0033] As a result, the first component 11 (joint 3) is fastened and fixed to the second component 12 (cover 14). Therefore, no additional members are required to fix the first component 11 (joint 3) to the second component 12 (cover 14). This reduces the number of components required to connect the first component 11 (joint 3) and the second component 12 (cover 14).

[0034] Second Embodiment Next, a connecting member according to an exemplary second embodiment will be described. The second embodiment differs from the first embodiment in the objects connected by the connecting member. Below, differences between the second embodiment and the first embodiment will be described, and descriptions of the same aspects as the first embodiment will be omitted.

[0035] A connecting member 10a according to a second exemplary embodiment will be described with reference to Fig. 5. Fig. 5 is a schematic diagram showing a connecting member 10a according to a second exemplary embodiment.

[0036] For example, the connecting member 10a is used to connect a pipe P1 in which a flow path 31 is formed and a pipe P2 in which a flow path 32 is formed. The pipe P1 has a first part 11a. The first part 11a is provided at an end of the pipe P1 on the other side Z2 in the first direction. The pipe P2 has a second part 12a. The second part 12a is provided at an end of the pipe P2 on the one side Z1 in the first direction. The first part 11a is the same as the first part 11 of the first embodiment except that the first part 11a does not have a fastened portion 113 and the shape of the second surface 11B is different. The second part 12a is the same as the second part 12 except that the shape of the second accommodation space 52 is different.

[0037] Specifically, the second component 12a has two protrusions, 12E and 12F, extending from the fourth surface 12B toward the first side Z1 in the first direction. Each of the protrusions 12E and 12F is annular and disposed on the outer periphery of the flow path 31 or 32. The protrusions 12E and 12F are arranged side by side in the radial direction of the cylindrical component 111. Specifically, the protrusion 12F is located outward of the protrusion 12E in the radial direction of the cylindrical component 111. An O-ring 42 is disposed between the protrusions 12E and 12F. That is, a second housing space 52 is formed between the protrusions 12E and 12F. Meanwhile, an annular groove corresponding to the protrusions 12E and 12F is formed on the surface of the first component 11a facing the fourth surface 12B of the second component 12a. The groove formed on the second surface 11B of the first component 11a is dug toward one side Z1 in the first direction. The width of the groove formed on the second surface 11B of the first component 11a is approximately the same as the length along the radial direction of the tubular portion 111 from the protrusion 12E to the protrusion 12F. The depth of the groove formed on the second surface 11B of the first component 11a is approximately the same as the length along the first direction Z of the protrusion 12E and the protrusion 12F.

[0038] [Modification 1] Next, a connecting member 10b according to a second exemplary embodiment will be described with reference to Fig. 6. Fig. 6 is a schematic diagram showing a connecting member 10b according to the second exemplary embodiment.

[0039] The connecting member 10b differs from the connecting member 10a in the shapes of the first housing space 51 and the second housing space 52. Specifically, the connecting member 10b includes a first component 11b and a second component 12b. In the connecting member 10b, the first housing space 51 is provided in the second component 12b. The second housing space 52 is provided in the first component 11b. That is, in the connecting member 10b, the first housing space 51 is formed as an annular groove dug outward in the radial direction of the cylindrical portion 111 on the surface of the second component 12b that faces the first surface 11A of the first component 11b. Meanwhile, in the connecting member 10b, the first housing space 51 is formed as an annular groove dug outward in the first direction on the surface of the first component 11b that faces the fourth surface 12B of the second component 12b.

[0040] [Variation 2] Next, a connecting member 10c according to a second exemplary embodiment will be described with reference to FIG. 7 . FIG. 7 is a schematic diagram illustrating the connecting member 10c according to the second exemplary embodiment. The connecting member 10c differs from the connecting member 10a in the shape of the first component and the shape of the second component. Specifically, the connecting member 10c includes a first component 11c and a second component 12c. The second component 12c is provided with a second housing space 52. The second housing space 52 is formed as an annular groove dug from the surface of the second component 12c facing the first direction side Z1 of the first component 11c toward the second direction side Z2.

[0041] On the other hand, the first component 11c does not have a flange 112 and has a second surface 11B. In the first component 11c, the second surface 11B extends from the first surface 11A of the cylindrical component 111 radially outward of the cylindrical component 111 and faces the other side Z2 in the first direction. Providing the second surface 11B radially outward of the cylindrical component 111 increases the contact area between the first component 11c and the second component 12c, making it more difficult for fluid to pass between the first component 11c and the second component 12c. As a result, the fluid sealing effect between the first component 11c and the second component 12c is enhanced.

[0042] [Variation 3] Next, a connecting member 10d according to a second exemplary embodiment will be described with reference to FIG. 8 . FIG. 8 is a schematic diagram illustrating a connecting member 10d according to the second exemplary embodiment. The connecting member 10c includes a first component 11d and a second component 12d. The first component 11d includes a first surface 11A and a second surface 11B. The second surface 11B of the first component 11d extends radially inward from the end of the cylindrical portion 111 on the other side Z2 in the first direction and faces the other side Z2 in the first direction. A first housing space 51 is provided on the first surface 11A of the first component 11d. A second housing 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 positioned more inward than the O-ring 41 in the radial direction of the cylindrical portion 111.

[0043] Even in this case, the gap formed along the first direction Z between the first component 11d and the second component 12d is sealed by the O-ring 41, and the gaps formed along the second direction X and the third direction Y are sealed by the O-ring 42. As described above, the connecting member 10d according to the exemplary second embodiment includes the first component 11d in which the flow path 31 is formed, the second component 12d in which the flow path 32 is formed, and the O-rings 41 and 42 that seal 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 O-rings side by side along the first direction Z, the length of the connecting member 10 along the first direction Z can be shortened while doubly sealing the space between the first part 11d and the second part 12d.

[0044] The embodiments of the present disclosure have been described above with reference to the drawings. However, the present disclosure is not limited to the above embodiments and can be implemented in various forms without departing from the spirit and scope of the present disclosure. Furthermore, the components disclosed in the above embodiments can be modified as appropriate. For example, some of the components shown in one embodiment may be added to the components of another embodiment, or some of the components shown in one embodiment may be deleted from the embodiment.

[0045] Furthermore, the drawings mainly show each component in a schematic manner to facilitate understanding of the disclosure, and the thickness, length, number, spacing, etc. of each component shown in the drawings may differ from the actual ones due to the convenience of creating the drawings. Furthermore, the configurations of each component shown in the above embodiment are merely examples and are not particularly limited, and it goes without saying that various modifications are possible within a scope that does not substantially deviate from the effects of the present disclosure.

[0046] The present technology can be configured as follows: (1) A connecting member including: a first component in which a first fluid flow path is formed; a second component connected to the first component and in which a second fluid flow path connected to the first fluid flow path is formed; and first and second sealing members that seal between the first component and the second component, wherein the first component has a cylindrical portion extending along a first direction in which the first fluid flow path extends, the cylindrical portion having a first surface located outward in a 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 opposing the first surface and a fourth surface opposing the second surface, the first sealing member and the second sealing member being annular members and arranged on an outer periphery of the first fluid flow path or the second fluid flow path, the first sealing member being arranged between the first surface and the third surface, and the second sealing member being arranged between the second surface and the fourth surface. (2) The connecting member according to (1), wherein the second surface extends radially outward from an end of the first surface opposite to a side on which the second component is located in the first direction. (3) The connecting member according to (1) or (2), wherein the tubular portion has a flange extending radially outward from the first surface, the second surface is provided on a side of the flange on which the second component is located in the first direction, and the flange has a fastening portion fastened to the fourth surface. (4) The connecting member according to any of (1) to (3), wherein at least the first surface, the second surface, and the third surface form a first housing space that houses the first sealing member, at least the second surface and the fourth surface form a second housing space that houses the first sealing member, and the second surface that forms the first housing space and the second surface that forms the second housing space are at the same position in the first direction. (5) The connecting member according to any one of (1) to (4), wherein the thickness of the first sealing member is different from the thickness of the second sealing member. (6) A cooling device for cooling a heat-generating component, comprising: the connecting member according to any one of (1) to (5), and a cold plate capable of thermally contacting the heat-generating component, wherein the second component has a cover that covers the cold plate, and the first component has a joint that is detachable from the cover.

[0047] The present disclosure is applicable to the field of connecting members.

Claims

1. A first component in which a first flow path for a fluid is formed, a second component connected to the first component and in which a second flow path connected to the first flow path is formed, and a first sealing member and a second sealing member that seal between the first component and the second component. The first component has a cylindrical portion extending along a first direction in which the first flow path extends. The cylindrical portion has 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 has a third surface facing the first surface and a fourth surface facing the second surface. The first sealing member and the second sealing member are annular members 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, and the second sealing member is disposed between the second surface and the fourth surface, a connecting member.

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

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

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

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

6. A cooling device for cooling a heat-generating component, having the connecting member according to any one of claims 1 to 3 and a cold plate capable of being in thermal contact with the heat-generating component. The second component has a cover covering the cold plate, and the first component has a joint that is detachable from the cover, a cooling device.

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