Heat dissipation connecting mechanism and heat dissipation system

Abstract

The utility model provides a heat radiation connecting mechanism and a heat radiation system, in the provided heat radiation connecting mechanism, a copper bar of a heat radiator is provided with a connecting hole; in the connecting assembly, a bolt at least comprises a flange part, a first rod part and a second rod part which are connected in sequence, the outer diameter of at least the first rod part is not greater than that of the connecting hole, so that the bolt penetrates through the connecting hole; one end, far away from the first rod part and penetrating out of the connecting hole, of the second rod part is connected with a matching part; the outer diameter of the limiting piece is larger than the aperture of the connecting hole, the limiting piece is located at the end, away from the matching piece, of the connecting hole and detachably sleeves the end, close to the first rod part, of the second rod part, and the two ends of the elastic piece abut against the end face, facing the first rod part, of the flange part and the end face, facing the flange part, of the limiting piece correspondingly. Or, the limiting piece is located at the end, facing the matching piece, of the connecting hole and detachably arranged at the end, close to the first rod part, of the second rod part in a sleeving mode, and the two ends of the elastic piece abut against the end face, facing the first rod part, of the flange part and the peripheral end face, facing the flange part, of the connecting hole correspondingly.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat dissipation connection mechanisms for connectors and other accessories, and in particular relates to a heat dissipation connection mechanism and a heat dissipation system. Background Art

[0002] A connector is a type of terminal, also known as a plug connector, consisting of a plug and a socket. In automotive circuits, connectors are relay stations for wiring harnesses, connecting them to each other and to electrical components.

[0003] After long-term use, the connector will generate heat, which will shorten its service life. Therefore, most of the current methods are to connect the radiator to it to achieve the purpose of heat dissipation. Figure 1 As shown, when currently connecting a radiator to a connector, it is necessary to first use bolts and elastic members to fix them to the radiator's copper busbar 1 through pressure riveting. At this time, the two ends of the elastic member 5 respectively abut the flange portion 31 of the bolt 3 and the end surface of the copper busbar 1 facing away from the connector (accessory 2). The end of the bolt 3 extending downward from the copper busbar 1 is threadedly connected to a nut 9, which then needs to be pressure-riveted to the connector (accessory 2). This requires two pressure riveting operations to complete the connection between the radiator's copper busbar and the connector (accessory 2). Since the pressure riveting connection method is implemented, the components cannot be repeatedly disassembled and reused. Utility Model Content

[0004] In view of the above-mentioned problems existing in the prior art, the main purpose of the present invention is to provide a heat dissipation connection mechanism and a heat dissipation system. The heat dissipation connection mechanism provided is detachable and can be repeatedly disassembled and reused without the need for riveting, and the stroke of the elastic part is controllable.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] The utility model provides a heat dissipation connection mechanism, which includes:

[0007] A radiator, wherein the copper busbar of the radiator is provided with connection holes;

[0008] A pair of accessories, the pair of accessories being arranged on one side of the radiator;

[0009] A connecting assembly comprising a bolt, a stopper, and an elastic member; the bolt comprising at least a flange portion, a first rod portion, and a second rod portion connected in sequence; the outer diameters of the flange portion, the first rod portion, and the second rod portion decrease in sequence, and at least the outer diameter of the first rod portion is no larger than the diameter of the connecting hole so that the bolt can be inserted into the connecting hole; the second rod portion is spaced away from the first rod portion and has one end extending through the connecting hole for connection to the mating fitting;

[0010] The outer diameter of the limiting member is larger than the diameter of the connecting hole;

[0011] The limiting member is located at an end of the connecting hole away from the matching accessory and is detachably mounted on an end of the second rod portion adjacent to the first rod portion, and both ends of the elastic member respectively abut against an end surface of the flange portion facing the first rod portion and an end surface of the limiting member facing the flange portion; or,

[0012] The limiting member is located at one end of the connecting hole facing the matching accessory and is detachably mounted on the end of the second rod portion adjacent to the first rod portion. The two ends of the elastic member respectively abut against the end face of the flange portion facing the first rod portion and the outer end face of the connecting hole facing the flange portion.

[0013] As a further description of the above technical solution, the limiting member is locked on the second rod portion along the axial direction of the bolt by a locking member;

[0014] The locking member is sleeved on the second rod portion and is located on a side of the limiting member away from the flange portion;

[0015] The outer diameter of the locking element is equal to the outer diameter of the first rod portion.

[0016] As a further description of the above technical solution, the locking member and the second rod portion are connected in an integral manner or in a split manner.

[0017] As a further description of the above technical solution, the locking member and the second rod portion are threadedly connected.

[0018] As a further description of the above technical solution, the locking member is a locking nut.

[0019] As a further description of the above technical solution, the locking member and the second rod portion are connected by a variable pitch thread.

[0020] As a further description of the above technical solution, the elastic member is sleeved on the first rod portion; or, the elastic member is sleeved on the first rod portion and the second rod portion.

[0021] As a further description of the above technical solution, one end of the second rod portion is away from the first rod portion and passes through the connecting hole and is threadedly connected to the matching accessory.

[0022] As a further description of the above technical solution, the bolt further includes a head, which is axially connected to an end of the flange portion away from the second rod portion.

[0023] The utility model also provides a heat dissipation system, comprising the heat dissipation connection mechanism as described above.

[0024] By means of the above technical solutions, the outstanding effects of the present invention are:

[0025] In the heat dissipation connection mechanism provided by the present invention, a counter-fitting is provided on one side of the radiator, and a bolt included in the connection assembly passes through a connection hole provided on the copper busbar of the radiator, thereby connecting the counter-fitting to the copper busbar. The bolt comprises a flange portion, a first rod portion, and a second rod portion, which are connected in sequence and have decreasing outer diameters. At least the outer diameter of the first rod portion is no larger than the connection hole, ensuring that the bolt can be inserted into the connection hole. Furthermore, after the end of the second rod portion, which is away from the first rod portion and extends through the connection hole, is connected to the counter-fitting, the bolt will not fall out of the connection hole of the copper busbar, thereby ensuring the effectiveness of the connection between the counter-fitting and the radiator. The outer diameter of the stopper is larger than the diameter of the connecting hole. After the heat dissipation connection mechanism is assembled, the stopper can be located at the end of the connecting hole facing away from the fitting and detachably mounted on the end of the second rod portion adjacent to the first rod portion. At this time, the two ends of the elastic member respectively abut against the end face of the flange portion facing the first rod portion and the end face of the stopper facing the flange portion, thereby being axially limited. If, after the heat dissipation connection mechanism is assembled, the stopper is located at the end of the connecting hole facing the fitting and detachably mounted on the end of the second rod portion adjacent to the first rod portion, the two ends of the elastic member respectively abut against the end face of the flange portion facing the first rod portion and the outer end face of the connecting hole facing the flange portion, thereby being axially limited. As a result, the heat dissipation connection mechanism can be disassembled and re-used multiple times, and no riveting operation is required each time it is connected to form an integral structure. The travel range of the elastic member is controlled by the position of the stopper relative to the second rod portion, thereby achieving an adjustable travel range, thereby allowing the fitting to obtain a certain range of movement under the same elastic coefficient of the elastic member. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram of a heat dissipation connection mechanism in the prior art;

[0027] Figure 2 This is a structural diagram of the heat dissipation connection mechanism in the first embodiment of the present utility model;

[0028] Figure 3 This is a schematic diagram of a first state of the connecting assembly in the first embodiment of the present utility model;

[0029] Figure 4 This is a schematic diagram of the second state of the connecting assembly in the first embodiment of the present utility model;

[0030] Figure 5 This is an exploded view of the connecting assembly in the first embodiment of the present utility model;

[0031] Figure 6 This is a partial schematic diagram of the connection between the locking member and the second rod portion in the first embodiment of the present utility model;

[0032] Figure 7 This is a structural diagram of the heat dissipation connection mechanism in the second embodiment of the present utility model;

[0033] Figure 8 This is a schematic diagram of the first state of the connecting assembly in the second embodiment of the present utility model;

[0034] Figure 9 This is an exploded view of the connecting assembly in the second embodiment of the present invention;

[0035] Figure 10 This is a partial schematic diagram of the connection between the locking member and the second rod portion in the third embodiment of the present invention;

[0036] Figure 11 This is a schematic structural diagram of a locking member in a fourth embodiment of the present invention;

[0037] Figure 12 Schematic diagram of the structure of the locking member in the fifth embodiment of the present invention.

[0038] Description of Figure Numbers:

[0039] 1. Copper busbar; 11. Connecting hole; 2. Fitting; 3. Bolt; 31. Flange; 32. First rod; 33. Second rod; 34. Head; 4. Limiting member; 5. Elastic member; 6. Locking member; 7. Anti-loosening ring groove; 8. Variable pitch thread; 9. Nut; P1. Pitch of variable pitch thread; P2. Pitch of non-variable pitch thread. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be noted that the terms "upper", "middle", "lower", "inside", "outside", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following describes the implementation of the present invention based on its overall structure.

[0042] See also Figures 2 to 12 The utility model discloses a heat dissipation connection mechanism, which includes:

[0043] A radiator, wherein the copper busbar 1 of the radiator is provided with a connection hole 11;

[0044] The pair of accessories 2 is provided on one side of the radiator;

[0045] A connecting assembly comprising a bolt 3, a stopper 4, and an elastic member 5; the bolt 3 comprises at least a flange portion 31, a first rod portion 32, and a second rod portion 33 connected in sequence; the outer diameters of the flange portion 31, the first rod portion 32, and the second rod portion 33 decrease in sequence, and at least the outer diameter of the first rod portion 32 is no larger than the diameter of the connecting hole 11, so that the bolt 3 is inserted into the connecting hole 11; the end of the second rod portion 33, which is away from the first rod portion 32 and extends through the connecting hole 11, is used to connect to the mating accessory 2;

[0046] The outer diameter of the limiting member 4 is larger than the diameter of the connecting hole 11;

[0047] The limiting member 4 is located at the end of the connecting hole 11 away from the matching accessory 2 and is detachably mounted on the end of the second rod portion 33 adjacent to the first rod portion 32. The two ends of the elastic member 5 respectively abut against the end surface of the flange portion 31 facing the first rod portion 32 and the end surface of the limiting member 4 facing the flange portion 31; or,

[0048] The limiting member 4 is located at one end of the connecting hole 11 facing the matching accessory 2 and is detachably mounted on the end of the second rod portion 33 adjacent to the first rod portion 32. The two ends of the elastic member 5 respectively abut against the end surface of the flange portion 31 facing the first rod portion 32 and the outer end surface of the connecting hole 11 facing the flange portion 31.

[0049] In the above-mentioned arrangement, the mating fitting 2 (e.g., a connector) is provided on one side of the radiator, and the bolt 3 included in the connecting assembly passes through the connecting hole 11 provided on the copper busbar 1 of the radiator, thereby connecting the mating fitting 2 to the copper busbar 1 of the radiator. The flange portion 31, the first rod portion 32, and the second rod portion 33 included in the bolt 3 are connected in sequence, and the outer diameters decrease successively. At the same time, the outer diameter of at least the first rod portion 32 is no larger than the connecting hole 11, ensuring that the bolt 3 can be inserted into the connecting hole 11. After the end of the second rod portion 33 that is away from the first rod portion 32 and passes through the connecting hole 11 is connected to the mating fitting 2, the bolt 3 will not fall out of the connecting hole 11 of the copper busbar 1, thereby ensuring the effectiveness of the connection between the mating fitting 2 and the radiator. The outer diameter of the limiting member 4 is larger than the aperture of the connecting hole 11. After the heat dissipation connection mechanism is assembled, the limiting member 4 can be located at the end of the connecting hole 11 away from the matching accessory 2 and can be detachably sleeved on the end of the second rod portion 33 adjacent to the first rod portion 32. At this time, the two ends of the elastic member 5 are respectively abutted against the end surface of the flange portion 31 facing the first rod portion 32 and the end surface of the limiting member 4 facing the flange portion 31 to be axially limited; and if the heat dissipation connection mechanism is assembled, the limiting member 4 is located at the end of the connecting hole 11 facing the matching accessory 2 and can be detachably sleeved on the end of the second rod portion 33 adjacent to the first rod portion 32, and the two ends of the elastic member 5 are respectively abutted against the end surface of the flange portion 31 facing the first rod portion 32 and the outer end surface of the connecting hole 11 facing the flange portion 31 to be axially limited. Therefore, the heat dissipation connection mechanism can be disassembled and assembled multiple times and reused, and no riveting operation is required each time it is connected into an integral structure. The stroke range of the elastic member 5 is controlled by the position of the limit member 4 relative to the second rod portion 33, thereby achieving the adjustable stroke range, so that the pair of accessories 2 can obtain a certain movement range when the elastic coefficient of the elastic member 5 is the same.

[0050] See also Figure 3Specifically, in the first embodiment, the limiting member 4 included in the connection assembly is a stepped gasket, and the elastic member 5 is sleeved on the first rod portion 32 and the second rod portion 33 of the bolt 3, with its upper end abutting against the lower end face of the flange portion 31 of the bolt 3, and the lower end directly abutting against the upper end face of the main body of the limiting member 4, thereby being limited in the vertical direction. At this time, the elastic member 5 has a pre-compression amount, and there is already a certain force value, which serves as the lower limit of the force value or the starting position for the displacement of the accessory 2. The outer diameter of the main body of the limiting member 4 is larger than the aperture of the connecting hole 11, so the assembled connection assembly can be directly assembled with the connecting hole 11 of the copper bus 1, that is, the bolt 3 is directly inserted into the connecting hole 11 from top to bottom, and the lower end of the second rod portion 33 of the bolt 3 is passed downward through the connecting hole 11 to be connected to the accessory 2. As shown Figure 2 As shown, after the connection is completed, the lower end face of the limiter 4 abuts against the upper outer end face of the connecting hole 11, and the upper and lower ends of the elastic member 5 respectively abut against the lower end face of the flange portion 31 and the upper end face of the limiter 4, so that the elastic member 5 has a certain amount of compression. It should be understood that the amount of compression of the elastic member 5 is affected by the relative position of the limiter 4 and the second rod portion 33, so that by controlling the relative position of the limiter 4 and the second rod portion 33, the amount of compression of the elastic member 5 can be controlled, so that the relative position of the copper bus 1 and the accessory 2 can be adjusted synchronously. By replacing the elastic member 5 with a different elastic coefficient, the movable range of the accessory 2 within the fixed force value range can also be adjusted. As shown Figure 4 As shown, at this time, the elastic member 5 is equivalent to being at the maximum compression amount, or the limiting member 4 is at the limiting position (that is, the lower end of the second rod portion 33 extends downward more and is connected to the matching member 2).

[0051] Specifically, in this embodiment, a locking member 6 is mounted on the second rod portion 33 and located below the limiting member 4, thereby locking the limiting member 4 vertically in a position adjacent to the first rod portion 32 on the second rod portion 33, preventing it from falling off the bolt 3. In this design, the maximum vertical movable distance of the limiting member 4 is between the lower end surface of the flange portion 31 and the upper end surface of the locking member 6 (in the absence of the elastic member 5). The outer diameter of the locking member 6 is equal to the outer diameter of the first rod portion 32, thereby only limiting the lower limit of the downward movement of the limiting member 4 and not affecting the assembly of the connecting assembly with the copper busbar 1 of the heat sink.

[0052] See also Figures 2 to 6Specifically, in this embodiment, the locking member 6 and the second rod portion 33 are separately connected. More specifically, the locking member 6 and the second rod portion 33 are threadedly connected, thereby allowing the relative position of the locking member 6 and the second rod portion 33 in the vertical direction to be adjusted, thereby enabling the initial compression amount of the elastic member 5 to be adjusted through the limiting member 4. Of course, in other embodiments, the locking member 6 and the limiting member 4 can also be integrally connected.

[0053] See also Figure 5 as well as Figure 6 Specifically, in this embodiment, the locking member 6 is a locking nut, for example, which is cylindrical in shape as a whole and has an outer wall with a locking ring groove 7 along the circumference. The locking ring groove 7 is roll-formed during production, so that the inner wall of the locking member 6 deforms along the radial direction of the thread, thereby achieving a locking effect when the locking member 6 is threadedly connected to the second rod portion 33 of the bolt 3. Of course, in other embodiments, the locking member 6 can also be a locking nut of other shapes, such as Figure 11 as well as Figure 12 As shown, in the fourth and fifth embodiments, the locking member 6 is a locking nut with a partial radial cross section of a hexagonal shape and a locking nut with a partial radial cross section of a toothed shape. In addition, the locking member 6 can also be a locking nut in the form of a double nut. Figure 10 In the third embodiment, unlike the first, fourth and fifth embodiments, the locking member 6 is a common nut, but the second rod portion 33 is provided with a variable pitch thread 8, and the pitch P1 of this thread section is greater than the pitch of the threads on the upper and lower sides (i.e., the pitch P2 of the non-variable pitch thread 8), so that the locking member 6 can also achieve an anti-loosening effect after being connected to the second rod portion 33.

[0054] Specifically, in this embodiment, the portion of the lower end of the second rod portion 33 that passes through the connecting hole 11 is also provided with an external thread, so as to be threadedly connected to the matching accessory 2 .

[0055] Specifically, in this embodiment, the bolt 3 further includes a head 34 , and the head 34 is coaxially connected to the upper end of the flange portion 31 .

[0056] See also Figures 7 to 9Specifically, in the second embodiment, unlike the first embodiment, the locking member 6 and the second rod portion 33 are integrally connected, are sheet-shaped, and have an outer diameter equal to that of the first rod portion 32. Therefore, the second rod portion 33 between the locking member 6 and the first rod portion 32 can be used for assembling the limiting member 4. When assembling the connecting assembly with the copper busbar 1 of the radiator, the elastic member 5 can be first sleeved onto the first rod portion 32 of the bolt 3, and then the second rod portion 33 (including the locking member 6) can be passed from top to bottom through the connecting hole 11 provided on the copper busbar 1 (the outer diameter of the elastic member 5 can be set to be larger than the hole diameter of the connecting hole 11). After the limiting member 4 is assembled to the second rod portion 33 between the locking member 6 and the lower end of the first rod portion 32, the upper and lower ends of the elastic member 5 will respectively abut against the lower end surface of the flange portion 31 and the outer end surface of the upper side of the connecting hole 11. Therefore, the entire connecting assembly can now form a stable connection with the copper busbar 1 of the radiator, but the compression amount of the elastic member 5 can be adjusted according to the length of the second rod portion 33 extending downward from the connecting hole 11. The limiting member 4 can be, for example, a retaining spring to facilitate its assembly with the bolt 3.

[0057] Specifically, the present invention further discloses a heat dissipation system, including the heat dissipation connection mechanism as described above. The heat dissipation connection mechanism is consistent with that described above and will not be described in detail here.

[0058] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any changes, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A heat dissipation connection mechanism, characterized in that: include: A radiator, wherein the copper busbar of the radiator is provided with connection holes; A pair of accessories, the pair of accessories being arranged on one side of the radiator; A connecting assembly comprising a bolt, a stopper, and an elastic member; the bolt comprising at least a flange portion, a first rod portion, and a second rod portion connected in sequence; the outer diameters of the flange portion, the first rod portion, and the second rod portion decrease in sequence, and at least the outer diameter of the first rod portion is no larger than the diameter of the connecting hole so that the bolt can be inserted into the connecting hole; the second rod portion is spaced away from the first rod portion and has one end extending through the connecting hole for connection to the mating fitting; The outer diameter of the limiting member is larger than the diameter of the connecting hole; The limiting member is located at an end of the connecting hole away from the matching accessory and is detachably mounted on an end of the second rod portion adjacent to the first rod portion, and both ends of the elastic member respectively abut against an end surface of the flange portion facing the first rod portion and an end surface of the limiting member facing the flange portion; or, The limiting member is located at one end of the connecting hole facing the matching accessory and is detachably mounted on the end of the second rod portion adjacent to the first rod portion. The two ends of the elastic member respectively abut against the end face of the flange portion facing the first rod portion and the outer end face of the connecting hole facing the flange portion.

2. The heat dissipation connection mechanism according to claim 1, characterized in that: The limiting member is locked on the second rod portion along the axial direction of the bolt by a locking member; The locking member is sleeved on the second rod portion and is located on a side of the limiting member away from the flange portion; The outer diameter of the locking element is equal to the outer diameter of the first rod portion.

3. The heat dissipation connection mechanism according to claim 2, characterized in that: The locking member and the second rod portion are connected in an integral manner or in a split manner.

4. The heat dissipation connection mechanism according to claim 3, characterized in that: The locking member is threadedly connected to the second rod portion.

5. The heat dissipation connection mechanism according to claim 4, characterized in that: The locking piece is a locking nut.

6. The heat dissipation connection mechanism according to claim 4, characterized in that: The locking member and the second rod portion are connected by a variable pitch thread.

7. The heat dissipation connection mechanism according to claim 1, characterized in that: The elastic member is sleeved on the first rod portion; or, the elastic member is sleeved on the first rod portion and the second rod portion.

8. The heat dissipation connection mechanism according to claim 1, characterized in that: One end of the second rod portion is away from the first rod portion and passes through the connecting hole and is threadedly connected to the matching fitting.

9. The heat dissipation connection mechanism according to claim 1, characterized in that: The bolt further includes a head, which is axially connected to an end of the flange portion facing away from the second rod portion.

10. A heat dissipation system, characterized in that: The heat dissipation connection mechanism comprises the heat dissipation connection mechanism according to any one of claims 1 to 9.

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