Thermally conductive member and apparatus

Abstract

A thermally conductive member and an apparatus are provided. The thermally conductive member can efficiently absorb variations in the distance between members when disposed between the members and can improve thermal conductivity between the members. A heat transfer member (1A) is provided with a bent metal plate (10A), the metal plate (10A) has a first portion (11), a second portion (12), and a third portion (13) continuously in one direction in an expanded state, and the metal plate (10A) is bent so that the first portion (11), the second portion (12), and the third portion (13) overlap in this order in a plan view of the first portion (11) to constitute a spring-like structure.

Description

Technical Field

[0001] The utility model relates to a heat-conducting component and equipment. Background Art

[0002] Patent document 1 discloses an electronic device, which comprises: a substrate; a heating element, which is arranged on the upper surface of the substrate; a shielding cover, which is arranged to surround the heating element from all sides and has an opening; and a heat spreader, which faces the upper surface of the substrate and is directly or indirectly connected to the heating element via the opening, and the heat spreader comprises: a chamber main body, which has a shell, a working fluid sealed in the shell, and a core arranged in the shell; and a shielding part, which is arranged in the shell, and in the electronic device, the shielding part is engaged with the shielding cover.

[0003] Patent Document 1: Japanese Patent Application Publication No. 2021-158190

[0004] In the electronic device described in Patent Document 1, as described in Patent Document 1 Figure 1 As shown in FIG. 1A and the like, the heat generating element is bonded to the heat spreader via a thermally conductive resin, thereby conducting the heat of the heat generating element to the heat spreader.

[0005] However, in the electronic device described in Patent Document 1, there is a situation where the distance between the heating element and the heat spreader is inconsistent due to the different assembly accuracy of each component. In the electronic device described in Patent Document 1, if the distance between the heating element and the heat spreader is inconsistent during assembly, the thickness of the thermally conductive resin disposed between the heating element and the heat spreader needs to be matched to the actual distance between the heating element and the heat spreader each time. Therefore, due to the adjustment of the thickness of the thermally conductive resin, the efficiency of absorbing the inconsistency in the distance between the heating element and the heat spreader is poor. In addition, in the electronic device described in Patent Document 1, if the distance between the heating element and the heat spreader becomes larger during assembly, the thermally conductive resin disposed between the heating element and the heat spreader needs to be thickened, but corresponding to the thickening of the thermally conductive resin, the thermal conductivity from the heating element to the heat spreader decreases. Utility Model Content

[0006] The present invention is completed to solve the above problems, and aims to provide a heat-conducting component, which can efficiently absorb the inconsistency of the distance between components and improve the thermal conductivity between components when it is arranged between components. In addition, the present invention aims to provide a device having the above heat-conducting component.

[0007] The heat-conducting component of the utility model is characterized in that it has a bent metal plate, which has a first part, a second part and a third part continuously in one direction in an unfolded state, and the metal plate is bent so that when the first part is viewed from above, the first part, the second part and the third part overlap in sequence, thereby forming a spring-shaped structure.

[0008] Alternatively, in a direction in which the first portion, the second portion, and the third portion are continuous, sizes of the first portion, the second portion, and the third portion may be the same as each other.

[0009] The metal plate may be further bent so that parts of the second portion overlap each other at the second portion when the first portion is viewed in plan.

[0010] Parts of the second portion that overlap the first portion in a plan view may have the same dimensions in a direction in which the first portion, the second portion, and the third portion are continuous.

[0011] Alternatively, in a direction in which the first portion, the second portion, and the third portion are continuous, a size of the second portion may be twice a size of the first portion or the third portion.

[0012] Alternatively, in a direction in which the first portion, the second portion, and the third portion are continuous, the first portion and the third portion may have the same size.

[0013] The second portion may be provided with a first claw-shaped portion formed by hollowing out, and the first claw-shaped portion may be bent toward the first portion.

[0014] The first claw-shaped portion may be in contact with the first portion.

[0015] The second portion may be further provided with a second claw-shaped portion formed by hollowing out, and the second claw-shaped portion may be bent toward the third portion.

[0016] The second claw-shaped portion may be in contact with the third portion.

[0017] The metal plate may further include a fourth portion extending from the first portion to the opposite side of the second portion, the second portion may be provided with an opening, and the fourth portion may be bent to pass through the opening and approach the third portion.

[0018] Alternatively, the fourth portion may be in contact with the third portion.

[0019] The metal plate may further include a fifth portion extending from the third portion to a side opposite to the second portion, and the fifth portion may be bent to pass through the opening and approach the first portion.

[0020] Alternatively, the fifth portion may be in contact with the first portion.

[0021] In the bent state of the metal plate, main surfaces of the first portion and the third portion may be parallel to each other.

[0022] It is also possible that the sizes of the first part, the second part and the third part are the same as each other in a direction perpendicular to the continuous direction of the first part, the second part and the third part and along the main surfaces of the first part, the second part and the third part.

[0023] The device of the present invention is characterized by comprising: a heat source; a heat diffusion device for diffusing heat from the heat source; and the heat conduction member of the present invention, which is provided between the heat source and the heat diffusion device.

[0024] According to the present invention, a heat conduction member can be provided, which can efficiently absorb the inconsistency of the distance between the members when it is arranged between the members, and can improve the thermal conductivity between the members. In addition, according to the present invention, a device having the above heat conduction member can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram which shows the three-dimensional state of an example of the heat transfer member in Embodiment 1 of this invention.

[0026] Figure 2 Yes Figure 1 Schematic diagram of a heat conducting member as viewed from the side.

[0027] Figure 3 Yes Figure 1 and Figure 2 The schematic diagram of the state in which the metal plate is unfolded as viewed from above is shown.

[0028] Figure 4 This is a schematic diagram showing a state in which an example of a heat transfer member according to Embodiment 2 of the present invention is viewed from the side.

[0029] Figure 5 Yes Figure 4 The schematic diagram of the state in which the metal plate is unfolded as viewed from above is shown.

[0030] Figure 6 This is a schematic diagram showing a side view of an example of a heat transfer member according to Embodiment 3 of the present invention.

[0031] Figure 7 Yes Figure 6 The schematic diagram of the state in which the metal plate is unfolded as viewed from above is shown.

[0032] Figure 8 This is a schematic diagram showing a side view of another example of the heat transfer member according to the third embodiment of the present invention.

[0033] Fig. 9 Yes Figure 8 The schematic diagram of the state in which the metal plate is unfolded as viewed from above is shown.

[0034] Fig.10 This is a schematic diagram showing a side view of an example of a heat transfer member according to Embodiment 4 of the present invention.

[0035] Fig.11 Yes Fig.10 The schematic diagram of the state in which the metal plate is unfolded as viewed from above is shown.

[0036] Fig.12 This is a schematic diagram showing a side view of an example of a heat transfer member according to Embodiment 5 of the present invention.

[0037] Fig.13 Yes Fig.12 The schematic diagram of the state in which the metal plate is unfolded as viewed from above is shown.

[0038] Fig.14 This is a schematic diagram showing a side view of an example of the device of the present invention.

[0039] Description of Reference Numerals

[0040] 1A, 1B, 1C, 1D, 1E, 1F...heat-conducting member; 10A, 10B, 10C, 10D, 10E, 10F...metal plate; 11...first portion; 12...second portion; 13...third portion; 14...fourth portion; 15...fifth portion; 21...first claw; 22...second claw; 30a, 30b...opening; 100...device; 110...heat source; 111...substrate; 120...heat diffusion device; 121...housing; D1...first direction; D2...second direction; D3...third direction; H1, H2, H3...hole; K1a, K1b, K2a, K2b, K3a, K3b...recess; L1...first line; L2...second line; L3...third line; L4...fourth line; L5...fifth line. DETAILED DESCRIPTION

[0041] The following is an explanation of the heat-conducting component and the device of the present invention. In addition, the present invention is not limited to the following structure, and can also be appropriately changed within the scope of the main purpose of the present invention. In addition, a structure formed by combining multiple preferred structures described below is also a technical solution of the present invention.

[0042] The embodiments shown below are illustrative, and it is self-evident that the parts of the structures shown in different embodiments can be replaced or combined. After the second embodiment, the description of the technical features shared with the first embodiment is omitted, and the differences are mainly described. In particular, the same effects based on the same structure are not mentioned in sequence in each embodiment.

[0043] In the following description, when each embodiment is not particularly distinguished, it is simply referred to as "the heat conduction member of the present invention" and "the device of the present invention".

[0044] The drawings shown below are schematic diagrams, and their dimensions, aspect ratios, and other aspects may differ from those of actual products.

[0045] In this specification, unless otherwise specified, terms indicating the relationship between elements (for example, "parallel", "vertical", etc.) and terms indicating the shape of an element refer not only to the exact form of the words, but also to a range that is substantially equivalent, for example, a range including a difference of about a few percent.

[0046] [Thermal Conductive Components]

[0047] The heat-conducting component of the utility model is characterized in that it has a bent metal plate, which has a first part, a second part and a third part continuously in one direction in an unfolded state. The metal plate is bent so that when the first part is viewed from above, the first part, the second part and the third part overlap in sequence, thereby forming a spring-shaped structure.

[0048] <Implementation method 1>

[0049] Figure 1 It is a schematic diagram which shows the three-dimensional state of an example of the heat transfer member in Embodiment 1 of this invention. Figure 2 Yes Figure 1 Schematic diagram of a heat conducting member as viewed from the side.

[0050] exist Figure 1 , Figure 2 Among them, the first direction D1, the second direction D2, and the third direction D3 are orthogonal to each other.

[0051] Figure 1 and Figure 2 The heat conducting member 1A shown has a bent metal plate 10A.

[0052] The structure of the metal plate 10A will be described below with reference to a developed state of the metal plate 10A before it is bent.

[0053] Figure 3 Yes Figure 1 and Figure 2 The schematic diagram of the state in which the metal plate is unfolded as viewed from above is shown.

[0054] like Figure 3 As shown, the metal plate 10A is in a state of being unfolded in one direction ( Figure 3 In the second direction (D2), the first part 11, the second part 12 and the third part 13 are continuously provided.

[0055] like Figure 3 As shown, it can also be that in the direction where the first part 11, the second part 12 and the third part 13 are continuous ( Figure 3 In the second direction (D2), the sizes of the first part 11, the second part 12 and the third part 13 are the same as each other.

[0056] In addition, in the direction in which the first portion 11, the second portion 12, and the third portion 13 are continuous ( Figure 3 In the second direction (D2), the sizes of the first part 11, the second part 12 and the third part 13 may be different from each other, or may be different in some parts.

[0057] like Figure 3 As shown, it is also possible that the first portion 11, the second portion 12 and the third portion 13 are continuous in a direction perpendicular to the first portion 11, the second portion 12 and the third portion 13 and along the main surface of the first portion 11, the second portion 12 and the third portion 13 ( Figure 3 In the third direction (D3), the sizes of the first part 11, the second part 12 and the third part 13 are the same as each other.

[0058] In addition, in a direction perpendicular to the continuous direction of the first portion 11, the second portion 12, and the third portion 13 and along the main surfaces of the first portion 11, the second portion 12, and the third portion 13 ( Figure 3 In the third direction (D3), the sizes of the first part 11, the second part 12 and the third part 13 may be different from each other, or may be different in some parts.

[0059] The metal plate 10A is made of a metal material. The thermal conductivity of the metal material is higher than that of a common thermally conductive resin used in electronic devices such as those described in Patent Document 1. Therefore, when the thermally conductive member 1A having the metal plate 10A is disposed between components, the high thermal conductivity of the metal material constituting the metal plate 10A can improve the thermal conductivity between the components.

[0060] As the metal material constituting the metal plate 10A, copper-based materials such as copper and phosphor bronze are preferable. Copper-based materials have particularly high thermal conductivity among metal materials.

[0061] Regarding the thickness of the metal plate 10A, in the present embodiment, the dimension of the metal plate 10A in the first direction D1 is preferably not less than 10 μm and not more than 30 μm.

[0062] Regarding the thickness of the metal plate 10A, in the present embodiment, the dimension of the metal plate 10A in the first direction D1 may be the same throughout the entirety or may be different in part.

[0063] Next, the bending method of the metal plate 10A will be described.

[0064] like Figure 1 and Figure 2 As shown, the metal plate 10A is bent so that the first portion 11 , the second portion 12 , and the third portion 13 overlap in this order when the first portion 11 is viewed from above.

[0065] When the first portion 11 is viewed in plan view in a state where the metal plate 10A is bent, the first portion 11 , the second portion 12 , and the third portion 13 may at least partially overlap with each other, and preferably entirely overlap with each other.

[0066] like Figure 2 As shown, it is preferred that the main surfaces of the first portion 11 and the third portion 13 are parallel to each other when the metal plate 10A is bent.

[0067] When the metal plate 10A is bent as described above, it is bent along the first line L1 located between the first portion 11 and the second portion 12 and the second line L2 located between the second portion 12 and the third portion 13 .

[0068] It is preferable that the first line L1 and the second line L2 are parallel to each other.

[0069] In addition, the first line L1 and the second line L2 may not be parallel to each other.

[0070] The metal plate 10A may be provided with the hole H1, the recess K1a, and the recess K1b located on the first line L1. In this case, it is easy to bend the metal plate 10A along the first line L1.

[0071] From the viewpoint of facilitating the bending of the metal plate 10A along the first line L1 , all or part of the hole H1 , the recess K1 a , and the recess K1 b may be provided on the first line L1 .

[0072] In addition, the metal plate 10A may not be provided with a hole, a recessed portion, or the like located on the first line L1 .

[0073] The metal plate 10A may be provided with the hole H2, the recessed portion K2a, and the recessed portion K2b located on the second line L2. In this case, it is easy to bend the metal plate 10A along the second line L2.

[0074] From the viewpoint of facilitating bending of the metal plate 10A along the second line L2 , all or part of the hole H2 , the recess K2 a , and the recess K2 b may be provided on the second line L2 .

[0075] In addition, the metal plate 10A may not be provided with a hole, a recessed portion, or the like located on the second line L2.

[0076] The metal plate 10A is bent as described above to form Figure 1 and Figure 2 In other words, the thermally conductive member 1A has a metal plate 10A constituting a spring-shaped structure.

[0077] The heat conducting member 1A includes a metal plate 10A forming a spring-shaped structure, which can be Figure 1 and Figure 2 Therefore, even if the distances between the components where the heat conducting member 1A is to be installed are not consistent, the heat conducting member 1A can be expanded and contracted to match the actual distance between the components when installed between the components. In this way, the heat conducting member 1A can efficiently absorb the inconsistency of the distances between the components when installed between the components.

[0078] Moreover, the heat-conducting component 1A utilizes the telescopic structure (spring-like structure) when absorbing the inconsistency of the distance between components, so that the inconsistency of the distance can be dealt with without thickening the metal plate 10A. Therefore, corresponding to the high thermal conductivity of the metal material constituting the metal plate 10A, the heat-conducting component 1A can also improve the thermal conductivity between the components.

[0079] Furthermore, the heat conduction member 1A utilizes the telescopic structure (spring-like structure) when absorbing the inconsistency in the distance between the members, and can cope with the inconsistency in the distance without increasing the thickness of the metal plate 10A, thereby suppressing an increase in the cost of the metal plate 10A.

[0080] <Implementation method 2>

[0081] In the heat transfer member according to the second embodiment of the present invention, the metal plate is further bent so that parts of the second portions overlap each other at the second portion when the first portion is viewed in plan.

[0082] The heat conduction member according to the second embodiment of the present invention is the same as the heat conduction member according to the first embodiment of the present invention except for the above-mentioned point.

[0083] Figure 4 This is a schematic diagram showing a state in which an example of a heat transfer member according to Embodiment 2 of the present invention is viewed from the side.

[0084] Figure 4 The heat conducting member 1B shown has a bent metal plate 10B.

[0085] The structure of the metal plate 10B will be described below with reference to the expanded state of the metal plate 10B before being bent. The structure of the metal plate 10B is the same as that of the metal plate 10A except for the following points.

[0086] Figure 5 Yes Figure 4 The schematic diagram of the state in which the metal plate is unfolded as viewed from above is shown.

[0087] like Figure 5 As shown, the metal plate 10B is in a state of being unfolded in one direction ( Figure 5 In the second direction (D2), the first part 11, the second part 12 and the third part 13 are continuously provided.

[0088] like Figure 5 As shown, it can also be that in the direction where the first part 11, the second part 12 and the third part 13 are continuous ( Figure 5 In the second direction (D2), the size of the second part 12 is twice the size of the first part 11 or the third part 13.

[0089] In addition, in the direction in which the first portion 11, the second portion 12, and the third portion 13 are continuous ( Figure 5 In the second direction (D2), the size of the second part 12 may not be twice the size of the first part 11 or the third part 13. Specifically, it may be larger than twice the size of the first part 11 or the third part 13, or smaller than twice the size of the first part 11 or the third part 13.

[0090] like Figure 5 As shown, it can also be that in the direction where the first part 11, the second part 12 and the third part 13 are continuous ( Figure 5 In the second direction D2), the sizes of the first part 11 and the third part 13 are the same as each other. In this case, Figure 5 As shown, it can also be that in the direction where the first part 11, the second part 12 and the third part 13 are continuous ( Figure 5 In the second direction (D2), the size of the second portion 12 is twice the size of the first portion 11 and the third portion 13 respectively.

[0091] Alternatively, the first portion 11, the second portion 12, and the third portion 13 may be continuous in the direction ( Figure 5In the second direction (D2), the sizes of the first part 11 and the third part 13 are different from each other.

[0092] The bending method of the metal plate 10B will be described below. The bending method of the metal plate 10B is the same as the bending method of the metal plate 10A except for the following point.

[0093] The metal plate 10B is bent so that the first portion 11, the second portion 12 and the third portion 13 overlap in this order when the first portion 11 is viewed from above. The metal plate 10B is further bent so that parts of the second portion 12 overlap each other at the second portion 12 when the first portion 11 is viewed from above.

[0094] When bent as described above, the metal plate 10B is bent along the first line L1 between the first portion 11 and the second portion 12 , the second line L2 between the second portion 12 and the third portion 13 , and the third line L3 between the first line L1 and the second line L2 at the second portion 12 .

[0095] Alternatively, when the first portion 11 is viewed from above, the parts of the second portion 12 that overlap each other may be arranged in a direction in which the first portion 11, the second portion 12, and the third portion 13 are continuous ( Figure 5 In other words, the dimensions in the second direction D2) of the second portion 12 separated by the third line L3, specifically, the area between the first line L1 and the third line L3 in the second portion 12, and the area between the second line L2 and the third line L3, may be the same in the direction ( Figure 5 , the dimensions in the second direction (D2) are the same as each other.

[0096] Alternatively, the portions of the second portion 12 that overlap the first portion 11 when viewed from above may be aligned in a direction in which the first portion 11, the second portion 12, and the third portion 13 are continuous ( Figure 5 In the embodiment, the dimensions in the second direction (D2) are different from each other.

[0097] Alternatively, in the direction in which the first part 11, the second part 12 and the third part 13 are continuous ( Figure 5 In the second direction (D2), the third line L3 is located between the first line L1 and the second line L2.

[0098] In addition, in the direction in which the first portion 11, the second portion 12, and the third portion 13 are continuous ( Figure 5In the second direction D2), the third line L3 may not be located in the middle of the first line L1 and the second line L2. Specifically, it may be located closer to the first line L1 than the middle between the first line L1 and the second line L2, or it may be located closer to the second line L2 than the middle between the first line L1 and the second line L2.

[0099] It is preferable that the first line L1 , the second line L2 , and the third line L3 are parallel to each other.

[0100] The metal plate 10B may be provided with the hole H3, the recess K3a, and the recess K3b located on the third line L3. In this case, it is easy to bend the metal plate 10B along the third line L3.

[0101] From the viewpoint of facilitating bending of the metal plate 10B along the third line L3 , all or part of the hole H3 , the recess K3 a , and the recess K3 b may be provided on the third line L3 .

[0102] In addition, the metal plate 10B may not be provided with a hole, a recessed portion, or the like located on the third line L3 .

[0103] The metal plate 10B is bent as described above to form Figure 4 In other words, the thermally conductive member 1B has a metal plate 10B constituting a spring-shaped structure.

[0104] The heat conduction member 1B has the metal plate 10B constituting a spring-shaped structure. Thus, similar to the heat conduction member 1A, when provided between members, it is possible to efficiently absorb the difference in distance between the members and improve the heat conduction between the members.

[0105] Moreover, compared with the heat conducting member 1A, the heat conducting member 1B is less likely to be in the direction of expansion and contraction of the spring ( Figure 4 , the direction perpendicular to the first direction D1) ( Figure 4 , including misalignment in the second direction D2 and the third direction D3).

[0106] <Implementation method 3>

[0107] In the heat transfer member according to the third embodiment of the present invention, the first claw-shaped portion formed by hollowing out is provided at the second portion, and the first claw-shaped portion is bent toward the first portion.

[0108] In the heat transfer member according to the third embodiment of the present invention, a second claw-shaped portion formed by hollowing out is further provided on the second portion, and the second claw-shaped portion is bent toward the third portion.

[0109] The heat transfer member according to the third embodiment of the present invention is the same as the heat transfer members according to the first and second embodiments of the present invention except for the above-mentioned point.

[0110] Figure 6 This is a schematic diagram showing a side view of an example of a heat transfer member according to Embodiment 3 of the present invention.

[0111] Figure 6 The heat conducting member 1C shown has a bent metal plate 10C.

[0112] The structure of the metal plate 10C will be described below by showing the expanded state of the metal plate 10C before being bent. The structure of the metal plate 10C is the same as that of the metal plate 10A except for the following points.

[0113] Figure 7 Yes Figure 6 The schematic diagram of the state in which the metal plate is unfolded as viewed from above is shown.

[0114] like Figure 7 As shown, the metal plate 10C is in a state of being unfolded in one direction ( Figure 7 In the second direction (D2), the first part 11, the second part 12 and the third part 13 are continuously provided.

[0115] The second portion 12 is provided with a first claw-shaped portion 21 formed by hollowing out.

[0116] The number of the first claw-shaped portion 21 may be one or more. In the case where a plurality of first claw-shaped portions 21 are provided, the number thereof may be as follows: Figure 7 Two are shown, but there may be more than three.

[0117] The second portion 12 is further provided with a second claw-shaped portion 22 formed by hollowing out.

[0118] The number of the second claw-shaped portion 22 may be one or more. In the case where a plurality of second claw-shaped portions 22 are provided, the number may be as follows: Figure 7 Two are shown, but there may be more than three.

[0119] The numbers of the first claw-shaped portions 21 and the second claw-shaped portions 22 may be the same or different.

[0120] like Figure 7 As shown, it is also possible that, in the expanded state of the metal plate 10C, in a direction perpendicular to the continuous direction of the first portion 11, the second portion 12 and the third portion 13 and along the main surface of the first portion 11, the second portion 12 and the third portion 13 ( Figure 7In the third direction (D3), the first claw-shaped portion 21 and the second claw-shaped portion 22 are separated from each other.

[0121] like Figure 7 As shown, it is also possible that, in the expanded state of the metal plate 10C, in a direction perpendicular to the continuous direction of the first portion 11, the second portion 12 and the third portion 13 and along the main surface of the first portion 11, the second portion 12 and the third portion 13 ( Figure 7 In the third direction (D3), the first claw-shaped portions 21 and the second claw-shaped portions 22 are alternately arranged.

[0122] like Figure 7 As shown, in the expanded state of the metal plate 10C, the distal ends of the first claw-shaped portion 21 and the second claw-shaped portion 22 may face in opposite directions.

[0123] The bending method of the metal plate 10C will be described below. The bending method of the metal plate 10C is the same as the bending method of the metal plate 10A except for the following point.

[0124] Similar to the metal plate 10A, the metal plate 10C is bent so that the first portion 11 , the second portion 12 , and the third portion 13 overlap in this order when the first portion 11 is viewed in plan.

[0125] When the metal plate 10C is bent, the first claw-shaped portion 21 is bent toward the first portion 11 .

[0126] It is preferable that the first claw-shaped portion 21 is in contact with the first portion 11 in a state where the metal plate 10C is bent.

[0127] When the first claw-shaped portion 21 contacts the first portion 11 in the state where the metal plate 10C is bent, the heat conducting member 1C including the metal plate 10C is in contact with the heat conducting member 1A including the metal plate 10A (see Figure 1 and Figure 2 ), a path corresponding to the first claw-shaped portion 21 is added to the heat conduction path between the first portion 11 and the second portion 12. Therefore, in the case where the first claw-shaped portion 21 is in contact with the first portion 11, the heat conduction member 1C can be provided between the members to further improve the thermal conductivity between the members, compared with the heat conduction member 1A.

[0128] Furthermore, when the first claw-shaped portion 21 contacts the first portion 11 in the bent state of the metal plate 10C, the elasticity of the heat conducting member 1C is improved by the action of the first claw-shaped portion 21 compared to the heat conducting member 1A. Therefore, when the first claw-shaped portion 21 contacts the first portion 11, the heat conducting member 1C can more efficiently absorb the difference in distance between the members when it is provided between the members compared to the heat conducting member 1A.

[0129] In the state before the heat conduction member 1C (the bent metal plate 10C) expands or contracts, the first claw-shaped portion 21 may or may not be in contact with the first portion 11 .

[0130] Alternatively, when the first claw portion 21 is not in contact with the first portion 11 before the heat-conducting component 1C (the bent metal plate 10C) expands or contracts, the first claw portion 21 may be in contact with the first portion 11 during the process of contraction of the heat-conducting component 1C (the bent metal plate 10C).

[0131] When the metal plate 10C is bent, the second claw-shaped portion 22 is bent toward the third portion 13 .

[0132] It is preferable that the second claw-shaped portion 22 is in contact with the third portion 13 in a state where the metal plate 10C is bent.

[0133] When the second claw-shaped portion 22 contacts the third portion 13 in the bent state of the metal plate 10C, the heat conducting member 1C having the metal plate 10C is similar to the heat conducting member 1A having the metal plate 10A (see Figure 1 and Figure 2 ), the heat conduction path between the third portion 13 and the second portion 12 is increased by the path corresponding to the second claw-shaped portion 22. Therefore, in the case where the second claw-shaped portion 22 contacts the third portion 13, the heat conduction member 1C can be provided between the members to further improve the thermal conductivity between the members, compared with the heat conduction member 1A.

[0134] Furthermore, when the second claw-shaped portion 22 contacts the third portion 13 in the bent state of the metal plate 10C, the thermal conductive member 1C has higher elasticity than the thermal conductive member 1A due to the action of the second claw-shaped portion 22. Therefore, when the second claw-shaped portion 22 contacts the third portion 13, the thermal conductive member 1C can more efficiently absorb the difference in distance between the components when it is provided between the components than the thermal conductive member 1A.

[0135] The second claw-shaped portion 22 may or may not be in contact with the third portion 13 in the state before the heat conduction member 1C (the bent metal plate 10C) is expanded or contracted.

[0136] Alternatively, when the second claw portion 22 is not in contact with the third portion 13 before the heat-conducting component 1C (the bent metal plate 10C) expands or contracts, the second claw portion 22 may be in contact with the third portion 13 during the process of contraction of the heat-conducting component 1C (the bent metal plate 10C).

[0137] Figure 8This is a schematic diagram showing a side view of another example of the heat transfer member according to the third embodiment of the present invention.

[0138] Figure 8 The heat conducting member 1D shown has a bent metal plate 10D.

[0139] The structure of the metal plate 10D will be described below by showing the expanded state of the metal plate 10D before being bent. The structure of the metal plate 10D is the same as that of the metal plate 10B except for the following points.

[0140] Fig. 9 Yes Figure 8 The schematic diagram of the state in which the metal plate is unfolded as viewed from above is shown.

[0141] like Fig. 9 As shown, the metal plate 10D is in the unfolded state, in one direction ( Fig. 9 In the second direction (D2), the first part 11, the second part 12 and the third part 13 are continuously provided.

[0142] In the second portion 12 , a first claw-shaped portion 21 formed by hollowing is provided in a region between the first line L1 and the third line L3 .

[0143] In the second portion 12 , a second claw-shaped portion 22 formed by hollowing is provided in a region between the second line L2 and the third line L3 .

[0144] The bending method of the metal plate 10D will be described below. The bending method of the metal plate 10D is the same as the bending method of the metal plate 10B except for the following point.

[0145] Similar to the metal plate 10B, the metal plate 10D is bent so that the first portion 11, the second portion 12, and the third portion 13 overlap in sequence when the first portion 11 is viewed from above. Similar to the metal plate 10B, the metal plate 10D is further bent so that parts of the second portion 12 overlap each other at the second portion 12 when the first portion 11 is viewed from above.

[0146] When the metal plate 10D is bent, the first claw-shaped portion 21 is bent toward the first portion 11 .

[0147] It is preferable that the first claw-shaped portion 21 is in contact with the first portion 11 in a state where the metal plate 10D is bent.

[0148] When the first claw 21 contacts the first portion 11 in the bent state of the metal plate 10D, the heat conducting member 1D having the metal plate 10D is in contact with the heat conducting member 1B having the metal plate 10B (see Figure 4), the heat conduction path between the first portion 11 and the second portion 12 includes a path corresponding to the first claw-shaped portion 21. Therefore, in the case where the first claw-shaped portion 21 is in contact with the first portion 11, the heat conduction member 1D can be provided between the members to further improve the thermal conductivity between the members, compared with the heat conduction member 1B.

[0149] Furthermore, when the first claw-shaped portion 21 is in contact with the first portion 11 in the bent state of the metal plate 10D, the elasticity of the heat conducting member 1D is improved compared with the heat conducting member 1B due to the action of the first claw-shaped portion 21. Therefore, when the first claw-shaped portion 21 is in contact with the first portion 11, the heat conducting member 1D can more efficiently absorb the difference in distance between the members when it is provided between the members compared with the heat conducting member 1B.

[0150] When the metal plate 10D is bent, the second claw-shaped portion 22 is bent toward the third portion 13 .

[0151] It is preferable that the second claw-shaped portion 22 is in contact with the third portion 13 in a state where the metal plate 10D is bent.

[0152] When the second claw-shaped portion 22 contacts the third portion 13 in the bent state of the metal plate 10D, the heat conducting member 1D having the metal plate 10D is in contact with the heat conducting member 1B having the metal plate 10B (see Figure 4 ), the heat conduction path between the third portion 13 and the second portion 12 includes a path corresponding to the second claw-shaped portion 22. Therefore, in the case where the second claw-shaped portion 22 is in contact with the third portion 13, the heat conduction member 1D can be provided between the members to further improve the thermal conductivity between the members, compared with the heat conduction member 1B.

[0153] Furthermore, when the second claw-shaped portion 22 is in contact with the third portion 13 in the bent state of the metal plate 10D, the elasticity of the heat conducting member 1D is improved compared to the heat conducting member 1B due to the action of the second claw-shaped portion 22. Therefore, when the second claw-shaped portion 22 is in contact with the third portion 13, the heat conducting member 1D can more efficiently absorb the difference in distance between the members when it is provided between the members compared to the heat conducting member 1B.

[0154] <Implementation method 4>

[0155] In the heat transfer member of the fourth embodiment of the present invention, the metal plate further includes a fourth portion extending from the first portion to the opposite side of the second portion, the second portion is provided with an opening, and the fourth portion is bent to pass through the opening toward the third portion.

[0156] The heat transfer member according to the fourth embodiment of the present invention is the same as the heat transfer members according to the first to third embodiments of the present invention except for the above-mentioned point.

[0157] Fig.10 This is a schematic diagram showing a side view of an example of a heat transfer member according to Embodiment 4 of the present invention.

[0158] Fig.10 The heat conducting member 1E shown has a bent metal plate 10E.

[0159] The structure of the metal plate 10E will be described below by showing a developed state of the metal plate 10E before being bent. The structure of the metal plate 10E is the same as that of the metal plate 10B except for the following points.

[0160] Fig.11 Yes Fig.10 The schematic diagram of the state in which the metal plate is unfolded as viewed from above is shown.

[0161] like Fig.11 As shown, the metal plate 10E is in the unfolded state, in one direction ( Fig.11 In the second direction (D2), the first part 11, the second part 12 and the third part 13 are continuously provided.

[0162] The metal plate 10E further includes a fourth portion 14 extending from the first portion 11 to the side opposite to the second portion 12 .

[0163] Alternatively, in the direction in which the first part 11, the second part 12 and the third part 13 are continuous ( Fig.11 In the second direction (D2), the size of the fourth part 14 is the same as the size of the first part 11 or the third part 13.

[0164] In the direction in which the first part 11, the second part 12 and the third part 13 are continuous ( Fig.11 In the second direction (D2), the size of the fourth part 14 may be different from the size of the first part 11 or the third part 13. Specifically, the size of the fourth part 14 may be larger than the size of the first part 11 or the third part 13, or smaller than the size of the first part 11 or the third part 13.

[0165] In the metal plate 10E, the opening 30a and the opening 30b are provided in the second portion 12. Specifically, in the second portion 12, the opening 30a is provided in the region between the first line L1 and the third line L3, and the opening 30b is provided in the region between the second line L2 and the third line L3.

[0166] In the direction in which the first part 11, the second part 12 and the third part 13 are continuous ( Fig.11In the second direction (D2), the sizes of the opening 30a and the opening 30b may be the same or different from each other.

[0167] In a direction perpendicular to the continuous direction of the first portion 11, the second portion 12, and the third portion 13 and along the main surfaces of the first portion 11, the second portion 12, and the third portion 13 ( Fig.11 In the third direction (D3), the sizes of the opening 30a and the opening 30b may be the same or different from each other.

[0168] In the metal plate 10E, in a direction perpendicular to the continuous direction of the first portion 11, the second portion 12, and the third portion 13 and along the main surfaces of the first portion 11, the second portion 12, and the third portion 13 ( Fig.11 In the third direction (D3), the size of the fourth portion 14 is equal to or smaller than the smaller size of the opening 30a and the opening 30b. From the viewpoint of increasing the heat conduction path in the metal plate 10E, it is preferred that the fourth portion 14 be perpendicular to the direction in which the first portion 11, the second portion 12, and the third portion 13 are continuous and along the main surfaces of the first portion 11, the second portion 12, and the third portion 13 ( Fig.11 In the third direction (D3), the size of the fourth portion 14 is the same as the smaller size of the opening 30a and the opening 30b, but may be smaller than the smaller size of the opening 30a and the opening 30b.

[0169] The bending method of the metal plate 10E will be described below. The bending method of the metal plate 10E is the same as the bending method of the metal plate 10B except for the following point.

[0170] Similar to the metal plate 10B, the metal plate 10E is bent so that the first portion 11, the second portion 12, and the third portion 13 overlap in sequence when the first portion 11 is viewed from above. Similar to the metal plate 10B, the metal plate 10E is further bent so that parts of the second portion 12 overlap each other at the second portion 12 when the first portion 11 is viewed from above.

[0171] The metal plate 10E is bent so that the fourth portion 14 passes through the opening 30a and the opening 30b in sequence and approaches the third portion 13. In other words, in the metal plate 10E, the fourth portion 14 is bent so that the fourth portion 14 passes through the opening 30a and the opening 30b in sequence and approaches the third portion 13.

[0172] When the metal plate 10E is bent as described above, it is bent along the fourth line L4 located between the first portion 11 and the fourth portion 14 in addition to the first line L1 , the second line L2 , and the third line L3 .

[0173] In order to bend the fourth portion 14 so as to sequentially pass through the opening 30a and the opening 30b and approach the third portion 13 as described above, the metal plate 10E may be bent at least along the fourth line L4. Alternatively, the metal plate 10E may be further bent along at least one line located on the opposite side of the first line L1 from the fourth line L4 in the fourth portion 14.

[0174] It is preferable that the first line L1 , the second line L2 , the third line L3 , and the fourth line L4 are parallel to each other.

[0175] In addition, the first line L1 , the second line L2 , the third line L3 , and the fourth line L4 may not be parallel to each other, and may not be parallel to each other in part.

[0176] It is preferable that the fourth portion 14 is in contact with the third portion 13 when the metal plate 10E is bent.

[0177] When the fourth portion 14 contacts the third portion 13 in the bent state of the metal plate 10E, the heat conducting member 1E having the metal plate 10E is in contact with the heat conducting member 1B having the metal plate 10B (see Figure 4 ), a path corresponding to the fourth portion 14 is added to the heat conduction path between the first portion 11 and the third portion 13. Therefore, in the case where the fourth portion 14 is in contact with the third portion 13, the heat conduction member 1E can be provided between the members to further improve the thermal conductivity between the members, compared with the heat conduction member 1B.

[0178] Furthermore, when the fourth portion 14 is in contact with the third portion 13 in the bent state of the metal plate 10E, the elasticity of the heat conducting member 1E is improved by the action of the fourth portion 14 compared to the heat conducting member 1B. Therefore, when the fourth portion 14 is in contact with the third portion 13, the heat conducting member 1E can more efficiently absorb the difference in distance between the members when the heat conducting member 1E is provided between the members compared to the heat conducting member 1B.

[0179] In the above, the fourth portion 14 is bent so as to pass through the opening 30a and the opening 30b provided in the second portion 12 in sequence and to approach the third portion 13, with respect to the metal plate 10E in which the fourth portion 14 is further provided on the metal plate 10B. Alternatively, the fourth portion 14 may be bent so as to pass through the opening provided on the second portion 12 and to approach the third portion 13, with respect to the metal plate 10A in which the fourth portion 14 is further provided.

[0180] <Implementation method 5>

[0181] In the heat transfer member of the fifth embodiment of the present invention, the metal plate further includes a fourth portion extending from the first portion to the opposite side of the second portion, the second portion is provided with an opening, and the fourth portion is bent to pass through the opening toward the third portion.

[0182] In the heat transfer member according to the fifth embodiment of the present invention, the metal plate further includes a fifth portion extending from the third portion to the side opposite to the second portion, and the fifth portion is bent to pass through the opening and approach the first portion.

[0183] The heat transfer member according to the fifth embodiment of the present invention is the same as the heat transfer members according to the first to fourth embodiments of the present invention except for the above-mentioned point.

[0184] Fig.12 This is a schematic diagram showing a side view of an example of a heat transfer member according to Embodiment 5 of the present invention.

[0185] Fig.12 The heat conducting member 1F shown has a bent metal plate 10F.

[0186] The structure of the metal plate 10F will be described below by showing the expanded state of the metal plate 10F before it is bent. The structure of the metal plate 10F is the same as that of the metal plate 10E except for the following point.

[0187] Fig.13 Yes Fig.12 The schematic diagram of the state in which the metal plate is unfolded as viewed from above is shown.

[0188] like Fig.13 As shown, the metal plate 10F is in a state of being unfolded in one direction ( Fig.13 In the second direction (D2), the first part 11, the second part 12 and the third part 13 are continuously provided.

[0189] The metal plate 10F further includes a fourth portion 14 extending from the first portion 11 to the side opposite to the second portion 12 .

[0190] The metal plate 10F further includes a fifth portion 15 extending from the third portion 13 to the side opposite to the second portion 12 .

[0191] In a direction perpendicular to the continuous direction of the first portion 11, the second portion 12, and the third portion 13 and along the main surfaces of the first portion 11, the second portion 12, and the third portion 13 ( Fig.13 In the third direction D3), the fourth portion 14 and the fifth portion 15 are offset from each other.

[0192] Alternatively, in the direction in which the first part 11, the second part 12 and the third part 13 are continuous ( Fig.13In the second direction (D2), the size of the fifth part 15 is the same as the size of the first part 11 or the third part 13.

[0193] In the direction in which the first part 11, the second part 12 and the third part 13 are continuous ( Fig.13 In the second direction (D2), the size of the fifth part 15 may be different from the size of the first part 11 or the third part 13. Specifically, it may be larger than the size of the first part 11 or the third part 13, or smaller than the size of the first part 11 or the third part 13.

[0194] In the direction in which the first part 11, the second part 12 and the third part 13 are continuous ( Fig.13 In the second direction (D2), the sizes of the fourth portion 14 and the fifth portion 15 may be the same or different from each other.

[0195] The metal plate 10F has an opening 30a and an opening 30b in the second portion 12. Specifically, in the second portion 12, the opening 30a is provided in a region between the first line L1 and the third line L3, and the opening 30b is provided in a region between the second line L2 and the third line L3.

[0196] In the metal plate 10F, in a direction perpendicular to the continuous direction of the first portion 11, the second portion 12, and the third portion 13 and along the main surfaces of the first portion 11, the second portion 12, and the third portion 13 ( Fig.13 In the third direction (D3), the total size of the fourth portion 14 and the fifth portion 15 is equal to or smaller than the smaller size of the opening 30a and the opening 30b. From the viewpoint of increasing the heat conduction path of the metal plate 10F, it is preferred that the fourth portion 14 and the fifth portion 15 be perpendicular to the direction in which the first portion 11, the second portion 12, and the third portion 13 are continuous and along the main surface of the first portion 11, the second portion 12, and the third portion 13. Fig.13 In the third direction (D3), the total size of the fourth portion 14 and the fifth portion 15 is the same as the smaller size of the opening 30a and the opening 30b, but may be smaller than the smaller size of the opening 30a and the opening 30b.

[0197] In a direction perpendicular to the continuous direction of the first portion 11, the second portion 12, and the third portion 13 and along the main surfaces of the first portion 11, the second portion 12, and the third portion 13 ( Fig.13 In the third direction (D3), the sizes of the fourth portion 14 and the fifth portion 15 may be the same or different from each other.

[0198] The bending method of the metal plate 10F will be described below. The bending method of the metal plate 10F is the same as the bending method of the metal plate 10E except for the following point.

[0199] Similar to the metal plate 10B, the metal plate 10F is bent so that the first portion 11, the second portion 12, and the third portion 13 overlap in order when the first portion 11 is viewed from above. Similar to the metal plate 10B, the metal plate 10F is further bent in the second portion 12 so that parts of the second portion 12 overlap each other when the first portion 11 is viewed from above.

[0200] The metal plate 10F is bent so that the fourth portion 14 passes through the opening 30a and the opening 30b in sequence and approaches the third portion 13. In other words, when the metal plate 10F is bent, the fourth portion 14 passes through the opening 30a and the opening 30b in sequence and approaches the third portion 13.

[0201] The metal plate 10F is bent so that the fifth portion 15 passes through the opening 30b and the opening 30a in sequence toward the first portion 11. In other words, when the metal plate 10F is bent, the fifth portion 15 passes through the opening 30b and the opening 30a in sequence toward the first portion 11.

[0202] In the state where the metal plate 10F is bent, the fourth portion 14 and the fifth portion 15 do not overlap when the first portion 11 is viewed in plan.

[0203] When the metal plate 10F is bent as described above, it is bent not only along the first line L1 , the second line L2 , and the third line L3 , but also along the fourth line L4 between the first portion 11 and the fourth portion 14 and the fifth line L5 between the third portion 13 and the fifth portion 15 .

[0204] In order to bend the fifth portion 15 so as to sequentially pass through the opening 30b and the opening 30a and approach the first portion 11 as described above, the metal plate 10F may be bent at least along the fifth line L5. Alternatively, the metal plate 10F may be further bent at the fifth portion 15 along at least one line located on the opposite side of the second line L2 from the fifth line L5.

[0205] It is preferable that the first line L1 , the second line L2 , the third line L3 , the fourth line L4 , and the fifth line L5 are parallel to each other.

[0206] In addition, the first line L1 , the second line L2 , the third line L3 , the fourth line L4 , and the fifth line L5 may not be parallel to each other, and may not be parallel to each other partially.

[0207] It is preferable that the fifth portion 15 is in contact with the first portion 11 in a state where the metal plate 10F is bent.

[0208] When the fifth portion 15 contacts the first portion 11 in the bent state of the metal plate 10F, the heat conducting member 1F having the metal plate 10F is in contact with the heat conducting member 1B having the metal plate 10B (see Figure 4 ), the heat conduction path between the first portion 11 and the third portion 13 is increased by the path corresponding to the fifth portion 15. Therefore, in the case where the fifth portion 15 is in contact with the first portion 11, the heat conduction member 1F can be provided between the members to further improve the thermal conductivity between the members, compared with the heat conduction member 1B.

[0209] Furthermore, when the fifth portion 15 is in contact with the first portion 11 in the bent state of the metal plate 10F, the thermal conductive member 1F has higher elasticity than the thermal conductive member 1B due to the action of the fifth portion 15. Therefore, when the fifth portion 15 is in contact with the first portion 11, the thermal conductive member 1F can more efficiently absorb the difference in distance between the components when it is provided between the components than the thermal conductive member 1B.

[0210] In the above, with respect to the metal plate 10F in which the fourth portion 14 and the fifth portion 15 are further provided on the metal plate 10B, the fourth portion 14 is bent so as to pass through the opening 30a and the opening 30b provided on the second portion 12 in sequence and to approach the third portion 13, and the fifth portion 15 is bent so as to pass through the opening 30b and the opening 30a provided on the second portion 12 in sequence and to approach the first portion 11. In addition, with respect to the metal plate 10A in which the fourth portion 14 and the fifth portion 15 are further provided on the metal plate 10A, the fourth portion 14 may be bent so as to pass through the opening provided on the second portion 12 and to approach the third portion 13, and the fifth portion 15 may be bent so as to pass through the opening provided on the second portion 12 and to approach the first portion 11.

[0211] In the above, the fourth portion 14 and the fifth portion 15 are shown to pass through the same opening ( Fig.12 and Fig.13 In the embodiment, the fourth part 14 and the fifth part 15 may be formed by passing through the respective openings provided in the second part 12 separately.

[0212] [equipment]

[0213] The device of the present invention is characterized by comprising: a heat source; a heat diffusion device for diffusing heat from the heat source; and the heat conduction member of the present invention, which is provided between the heat source and the heat diffusion device.

[0214] Hereinafter, as an example of the device of the present invention, a device including the heat transfer member according to the first embodiment of the present invention will be described. The same applies to devices including the heat transfer members according to other embodiments of the present invention.

[0215] Fig.14 This is a schematic diagram showing a side view of an example of the device of the present invention.

[0216] Fig.14 The device 100 shown has a heat source 110, a heat spreading device 120, and a thermally conductive member 1A.

[0217] Examples of the heat source 110 include electronic components, etc. Examples of the electronic components include heat generating elements such as a central processing unit (CPU), a light emitting diode (LED), and a power semiconductor.

[0218] The heat source 110 , such as an electronic component, may be mounted on the surface of the substrate 111 .

[0219] When an electronic component is used as the heat source 110 , the device 100 can also be referred to as an electronic device.

[0220] The heat diffusion device 120 is a device for diffusing the heat from the heat source 110. Examples of the heat diffusion device 120 include a heat spreader, a heat pipe, and a heat sink.

[0221] Alternatively, the heat diffusion device 120 , such as a heat spreader, is disposed on the surface of the housing 121 .

[0222] The heat conducting member 1A is disposed between the heat source 110 and the heat spreading device 120 .

[0223] In the device 100, the heat conducting member 1A is disposed between the heat source 110 and the heat diffusion device 120, so that even if the distance between the heat source 110 and the heat diffusion device 120 is inconsistent when the device 100 is assembled, the heat conducting member 1A can be expanded and contracted to match the actual distance between the heat source 110 and the heat diffusion device 120. In this way, in the device 100, the heat conducting member 1A can efficiently absorb the inconsistency of the distance between the heat source 110 and the heat diffusion device 120.

[0224] Furthermore, in the device 100, when the heat conductive member 1A absorbs the inconsistency in the distance between the heat source 110 and the heat diffuser 120, the inconsistency can be dealt with by utilizing the telescopic structure (spring-like structure) without increasing the thickness of the metal plate 10A. Therefore, the heat conductive member 1A can also improve the thermal conductivity between the heat source 110 and the heat diffuser 120 in accordance with the high thermal conductivity of the metal material constituting the metal plate 10A.

[0225] Alternatively, an adhesive layer (not shown) may be provided between at least one of the heat conductive member 1A and the heat source 110 and between the heat conductive member 1A and the heat diffusion device 120. For example, when the heat conductive member 1A and the heat source 110 are bonded via the adhesive layer, the positional relationship between the heat conductive member 1A and the heat source 110 is not easily displaced by an external force. When the heat conductive member 1A and the heat diffusion device 120 are bonded via the adhesive layer, the positional relationship between the heat conductive member 1A and the heat diffusion device 120 is also not easily displaced by an external force.

[0226] In addition, the adhesive layer may not be provided between at least one of the heat conducting member 1A and the heat source 110 and between the heat conducting member 1A and the heat diffusion device 120. In this case, the heat conducting member 1A may be in contact with the heat source 110 or the heat conducting member 1A may be in contact with the heat diffusion device 120.

[0227] This specification discloses the following contents.

[0228] <1> A heat-conducting component, characterized in that it includes a bent metal plate, wherein the metal plate has a first portion, a second portion, and a third portion continuously in one direction in an unfolded state, and the metal plate is bent so that when the first portion is viewed from above, the first portion, the second portion, and the third portion overlap in sequence to form a spring-shaped structure.

[0229] <2> In the heat transfer member described in <1>, in a direction in which the first portion, the second portion, and the third portion are continuous, the first portion, the second portion, and the third portion have the same dimensions.

[0230] <3> In the heat transfer member described in <1> or <2>, the metal plate is further bent so that parts of the second portion overlap each other at the second portion when the first portion is viewed in plan.

[0231] <4> In the heat transfer member described in <3>, the portions of the second portion that overlap the first portion in a plan view have the same dimensions in a direction in which the first portion, the second portion, and the third portion are continuous.

[0232] <5> In the heat transfer member described in <4>, in a direction in which the first portion, the second portion, and the third portion are continuous, a size of the second portion is twice a size of the first portion or the third portion.

[0233] <6> In the heat transfer member described in <5>, in a direction in which the first portion, the second portion, and the third portion are continuous, the first portion and the third portion have the same size.

[0234] <7> In the heat transfer member according to any one of <1> to <6>, the second portion is provided with a first claw-shaped portion formed by hollowing out, and the first claw-shaped portion is bent toward the first portion.

[0235] <8> In the heat transfer member described in <7>, the first claw-shaped portion is in contact with the first portion.

[0236] <9> In the heat transfer member described in <7> or <8>, the second portion is further provided with a second claw-shaped portion formed by hollowing out, and the second claw-shaped portion is bent toward the third portion.

[0237] <10> In the heat transfer member described in <9>, the second claw-shaped portion is in contact with the third portion.

[0238] <11> In the heat-conducting component described in any one of <1> to <10>, the metal plate further includes a fourth portion extending from the first portion to a side opposite to the second portion, an opening is provided in the second portion, and the fourth portion is bent to pass through the opening and toward the third portion.

[0239] <12> In the heat transfer member described in <11>, the fourth portion is in contact with the third portion.

[0240] <13> In the heat conduction member described in <11> or <12>, the metal plate further includes a fifth portion extending from the third portion to a side opposite to the second portion, and the fifth portion is bent to pass through the opening and approach the first portion.

[0241] <14> In the heat transfer member described in <13>, the fifth portion is in contact with the first portion.

[0242] <15> In the heat conduction member according to any one of <1> to <14>, in a state where the metal plate is bent, main surfaces of the first portion and the third portion are parallel to each other.

[0243] <16> In the heat-conducting component described in any one of <1> to <15>, the dimensions of the first part, the second part and the third part are the same as each other in a direction perpendicular to a continuous direction of the first part, the second part and the third part and along a main surface of the first part, the second part and the third part.

[0244] <17> An apparatus comprising: a heat source; a heat diffusion device that diffuses heat from the heat source; and the heat conduction member according to any one of <1> to <16>, disposed between the heat source and the heat diffusion device.

[0245] Industrial Applicability

[0246] The heat-conducting component of the utility model can be used to improve the heat conduction between components, such as the heat conduction between the heat source and the heat diffusion device. In addition, the heat diffusion device for which the heat-conducting component of the utility model is the object can be used for a wide range of purposes in the fields of portable information terminals, etc. Such a heat diffusion device can be used, for example, to reduce the temperature of a heat source such as a central processing unit and to extend the use time of an electronic device, and can be applied to electronic devices such as smart phones, tablet terminals, laptops, gaming devices, and wearable devices.

Claims

1. A heat conducting component, characterized in that: With a bent metal plate, The metal plate has a first portion, a second portion, and a third portion continuously in one direction in an unfolded state. The metal plate is bent so that the first portion, the second portion, and the third portion overlap in this order when the first portion is viewed from above, thereby forming a spring-shaped structure.

2. The heat conducting component according to claim 1, characterized in that: In a direction in which the first portion, the second portion, and the third portion are continuous, sizes of the first portion, the second portion, and the third portion are the same as each other.

3. The heat conducting component according to claim 1, characterized in that: The metal plate is further bent so that parts of the second portion overlap each other at the second portion when the first portion is viewed from above.

4. The heat conducting component according to claim 3, characterized in that: Parts of the second portion that overlap the first portion in a plan view have the same dimensions in a direction in which the first portion, the second portion, and the third portion are continuous.

5. The heat conducting component according to claim 4, characterized in that: In a direction in which the first part, the second part and the third part are continuous, a size of the second part is twice a size of the first part or the third part.

6. The heat conducting component according to claim 5, characterized in that: In a direction in which the first portion, the second portion, and the third portion are continuous, sizes of the first portion and the third portion are the same as each other.

7. The thermally conductive member according to any one of claims 1 to 6, characterized in that: The second portion is provided with a first claw-shaped portion formed by hollowing out. The first claw-shaped portion is bent toward the first portion.

8. The heat conducting component according to claim 7, characterized in that: The first claw-shaped portion is in contact with the first portion.

9. The heat conducting component according to claim 7, characterized in that: The second portion is further provided with a second claw-shaped portion formed by hollowing out. The second claw-shaped portion is bent toward the third portion.

10. The heat conducting component according to claim 9, characterized in that: The second claw-shaped portion is in contact with the third portion.

11. The thermally conductive member according to any one of claims 1 to 6, characterized in that: The metal plate further includes a fourth portion extending from the first portion to a side opposite to the second portion. The second portion is provided with an opening, The fourth portion is bent to pass through the opening and approach the third portion.

12. The heat conducting component according to claim 11, characterized in that The fourth portion is in contact with the third portion.

13. The heat conducting component according to claim 11, characterized in that: The metal plate further includes a fifth portion extending from the third portion to a side opposite to the second portion. The fifth portion is bent to pass through the opening and approach the first portion.

14. The heat conducting component according to claim 13, characterized in that: The fifth portion is in contact with the first portion.

15. The thermally conductive member according to any one of claims 1 to 6, characterized in that: In a state where the metal plate is bent, main surfaces of the first portion and the third portion are parallel to each other.

16. The thermally conductive member according to any one of claims 1 to 6, characterized in that: The first part, the second part, and the third part have the same sizes as each other in a direction perpendicular to a continuous direction of the first part, the second part, and the third part and along main surfaces of the first part, the second part, and the third part.

17. A device, characterized in that have: Heat source; a heat spreading device that spreads heat from the heat source; and The heat conducting member according to any one of claims 1 to 16, which is provided between the heat source and the heat diffusion device.

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