Electrical connection heat sink assembly

Abstract

The utility model belongs to battery technical field relates to an electrical connection heat radiation subassembly, including electrical fittings, busbar and heat radiation structure, busbar is connected with electrical fittings electricity, heat radiation structure includes box and phase change material, the box is equipped with the containing cavity and the open mouth that communicates with containing cavity, the box is fixed on the busbar, the sealed connection between the box and busbar, the open mouth is opposite the busbar, and the phase change material is located in the containing cavity and passes through the open mouth and contacts with the busbar. The utility model adopts the phase change material and the busbar direct contact and carries out the heat dissipation, effectively solved the problem that the heat dissipation efficiency is relatively low that appears when the electrical fittings after the expansion adopts the heat dissipation of conventional liquid cooling and heat conduction pad, provides reliable heat dissipation for electrical fittings in its full life cycle.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to an electrical connection heat dissipation component. Background Technology

[0002] BDU (Battery Disconnect Unit) expansion involves upgrading various electrical components such as relays and fuses, as well as the conductive copper busbars connecting to these components. The upgraded electrical components and conductive copper busbars primarily transfer heat to liquid cooling plates or other cooling media via liquid cooling and thermal pads. However, due to limitations in the thermal conductivity and thermal resistance of the thermal pads, the current heat transfer method suffers from relatively low heat dissipation efficiency, and the thermal pads are prone to aging, deformation, and reduced thermal conductivity. Therefore, the current heat transfer method is insufficient to support reliable heat dissipation for the upgraded electrical components throughout their entire lifespan. Utility Model Content

[0003] The purpose of this invention is to provide an electrical connection heat dissipation component that can provide reliable heat dissipation for electrical components.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] An electrical connection heat dissipation assembly is provided, including electrical components, a busbar, and a heat dissipation structure. The busbar is electrically connected to the electrical components. The heat dissipation structure includes a housing and a phase change material. The housing has a receiving cavity and an opening communicating with the receiving cavity. The housing is fixed to the busbar and is sealed to the busbar. The opening faces the busbar. The phase change material is located inside the receiving cavity and passes through the opening to contact the busbar.

[0006] As a further embodiment of the electrical connection heat dissipation assembly, the thickness of the busbar extends along a first direction, and the housing is located on one side of the busbar along the first direction; and / or,

[0007] The enclosure is adjacent to the electrical components.

[0008] As a further embodiment of the electrical connection heat dissipation assembly, the housing is provided with several vent holes, which are connected to the receiving cavity, and the upper surface of the phase change material is lower than the vent holes.

[0009] As a further embodiment of the electrical connection heat dissipation assembly, the thickness of the busbar extends along a first direction, which is a vertical direction. The opening is located at the bottom of the housing, and the bottom of the housing is sealed to the busbar. The vent is located on the top wall of the housing directly opposite the opening.

[0010] As a further embodiment of the electrical connection heat dissipation assembly, the enclosure further includes an enclosure body, a connecting portion, and a sealing and fixing structure. The enclosure body has a receiving cavity and the opening. The connecting portion is located on the side of the enclosure body facing the busbar. The connecting portion is arranged around the outer periphery of the enclosure body. The connecting portion and the busbar are sealed and connected through the sealing and fixing structure.

[0011] As a further embodiment of the electrical connection heat dissipation assembly, the sealing and fixing structure includes a fastener and a sealing ring. The sealing ring is located between the connecting portion and the busbar, and surrounds the outer periphery of the opening. The connecting portion is fixedly connected to the busbar by the fastener, and the connecting portion presses the sealing ring against the busbar.

[0012] As a further embodiment of the electrical connection heat dissipation assembly, the fastener includes a plurality of studs and nuts that are screwed into the studs. The studs are fixed at intervals on the busbar. The connecting part is provided with connecting holes that correspond one-to-one with the studs. The studs pass through the corresponding connecting holes and are locked by the corresponding nuts.

[0013] As a further embodiment of the electrical connection heat dissipation assembly, the outer peripheral wall of the housing body is recessed inward to form a plurality of clearance grooves, each clearance groove corresponding to a stud; the connection part includes a sealing area and a fixing area corresponding to each clearance groove, the sealing area is arranged around the outer periphery of the housing body, the fixing area is protruding from the inner periphery of the sealing area, the fixing area extends into the corresponding clearance groove and is connected to the side wall of the clearance groove, the sealing ring is located between the sealing area and the busbar, and the fixing area has the connection hole.

[0014] As a further embodiment of the electrical connection heat dissipation assembly, the number of studs is at least three, wherein the three studs are arranged in a triangular pattern.

[0015] As a further embodiment of the electrical connection heat dissipation assembly, the width of the busbar extends along a second direction, the length of the busbar extends along a third direction, the width of the housing body extends along the second direction, and the length of the housing body extends along the third direction, wherein the first direction, the second direction, and the third direction are perpendicular to each other; the number of studs is three, wherein one stud is located on the side of the housing body away from the electrical component along the third direction, and the other two studs are located on both sides of the housing body along the second direction and adjacent to the electrical component.

[0016] As a further embodiment of the electrical connection heat dissipation assembly, the housing extends on both sides along the second direction to the edge of the busbar along the second direction, the housing extends on one side along the third direction to one edge of the busbar along the third direction, and the housing protrudes on the other side along the third direction from the side of the electrical component along the third direction.

[0017] The beneficial effects of this utility model are:

[0018] This invention places the housing on the busbar with the opening of the housing facing the busbar, allowing the phase change material (PCM) inside the housing to directly contact the busbar. The PCM, initially solid, absorbs heat from the busbar and its temperature gradually increases. When it reaches its phase change temperature, it melts into a liquid state. The liquid PCM then dissipates heat, lowering its temperature and thus cooling the busbar. The housing and the busbar are sealed together to prevent the melted PCM from flowing out through the gaps between them, which would affect the busbar's heat dissipation effect.

[0019] This invention uses phase change material to directly contact the busbar for heat dissipation, which effectively solves the problem of relatively low heat dissipation efficiency when using conventional liquid cooling and thermal pads for heat dissipation of electrical components after capacity expansion. It provides reliable heat dissipation for electrical components throughout their entire life cycle. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the electrical connection heat dissipation assembly in one embodiment;

[0021] Figure 2 This is an exploded view of the electrical connection heat dissipation assembly in one embodiment;

[0022] Figure 3 This is a schematic diagram of the structure of the box in one embodiment.

[0023] In the picture:

[0024] 100. Electrical components; 110. Connecting end; 200. Busbar; 300. Heat dissipation structure; 310. Enclosure; 3101. Opening; 3102. Vent hole; 3103. Clearance groove; 311. Enclosure body; 312. Connecting part; 3121. Sealing area; 3122. Fixing area; 313. Stud; 314. Nut; 315. Connecting hole; 320. Phase change material; 400. Bolt. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0029] The electrical component 100 in this embodiment can be a relay, fuse, or connector, etc. The following description uses the relay shown in the accompanying drawings as an example to illustrate this embodiment in detail.

[0030] like Figures 1 to 3As shown, the electrical connection heat dissipation assembly of this embodiment includes an electrical component 100, a busbar 200, and a heat dissipation structure 300. The busbar 200 is electrically connected to the electrical component 100. The heat dissipation structure 300 includes a housing 310 and a phase change material 320. The housing 310 has a receiving cavity and an opening 3101 communicating with the receiving cavity. The housing 310 is fixed on the busbar 200, and the housing 310 and the busbar 200 are sealed together. The opening 3101 faces the busbar 200. The phase change material 320 is located in the receiving cavity and passes through the opening 3101 to contact the busbar 200.

[0031] In this embodiment, the busbar 200 is electrically connected to the electrical component 100. The electrical component 100 generates heat during operation, especially after expansion, which increases the heat output. This heat is transferred to the busbar 200, causing its temperature to rise. The busbar 200 itself also generates heat when energized, resulting in a higher temperature for the busbar 200 connected to the electrical component 100. In this embodiment, the housing 310 is placed on the busbar 200 with its opening 3101 facing the busbar 200. This allows the phase change material 320 inside the housing 310 to directly contact the busbar 200 through the opening 3101. The phase change material 320, initially solid, absorbs heat from the busbar 200 and its temperature gradually increases. When it reaches its phase change temperature, it melts into a liquid state. The liquid phase change material 320 dissipates heat, lowering its temperature and thus cooling the busbar 200. The enclosure 310 and the busbar 200 are sealed together to prevent the phase change material 320 from melting into liquid and flowing out from the gap between the enclosure 310 and the busbar 200, thus affecting the heat dissipation effect of the busbar 200.

[0032] In this embodiment, phase change material 320 is directly contacted with busbar 200 for heat dissipation, which effectively solves the problem of relatively low heat dissipation efficiency when conventional liquid cooling and thermal pads are used for heat dissipation of the expanded electrical component 100, and provides reliable heat dissipation for the electrical component 100 throughout its entire life cycle.

[0033] In this embodiment, a phase change material 320 with a suitable thermal conductivity can be selected according to the heat dissipation requirements. Compared with a thermal pad, the phase change material 320 offers more options and can achieve efficient heat dissipation for the busbar 200. The phase change material 320 is existing technology and can be paraffin wax or a mixture of paraffin wax and other thermally conductive particles; further details will not be elaborated here.

[0034] In this embodiment, the busbar 200 is generally a copper busbar.

[0035] In this embodiment, the connection end 110 of the electrical component 100 is connected to the busbar 200 via a bolt 400 to achieve electrical conduction, and the bolt 400 is covered by a phase change material 320. In other examples, the connection end 110 may also be welded to the busbar 200.

[0036] Furthermore, the thickness of the busbar 200 extends along a first direction (Z direction in the figure), and the housing 310 is located on one side of the busbar 200 along the first direction, adjacent to the electrical component 100.

[0037] In this embodiment, the housing 310 is fixed to the side of the busbar 200 facing away from the electrical component 100 along the first direction, that is, the opening 3101 of the housing 310 faces the large surface of the busbar 200 (the side with the largest area of ​​the busbar 200). This increases the contact area between the phase change material 320 and the busbar 200, thereby improving heat dissipation efficiency. Since the temperature is highest in the contact area between the busbar 200 and the electrical component 100, the housing 310, being close to the electrical component 100, can utilize the phase change material 320 inside the housing 310 to promptly dissipate heat from the areas of the busbar 200 that generate heat quickly and in large quantities.

[0038] Furthermore, the housing 310 is provided with a number of vent holes 3102, which are connected to the receiving cavity, and the upper end surface of the phase change material 320 is lower than the vent holes 3102.

[0039] In this embodiment, by providing a vent 3102 on the housing 310, the hot air generated after the phase change material 320 absorbs heat can be discharged in time through the vent 3102, accelerating the heat dissipation of the manifold 200; the position of the vent 3102 is designed to be higher than the upper surface of the phase change material 320, which can prevent the phase change material 320, which has melted into liquid, from overflowing from the vent 3102.

[0040] like Figure 1 and Figure 3 As shown, there are three vent holes 3102, which are spaced apart to improve heat dissipation efficiency. In other embodiments, two, four, or even more vent holes may be provided.

[0041] Furthermore, the thickness of the busbar 200 extends along a first direction, which is a vertical direction. The opening 3101 is located at the bottom of the housing 310. The bottom of the housing 310 is sealed to the busbar 200. The vent 3102 is located on the top wall of the housing 310 directly opposite the opening 3101.

[0042] In this embodiment, the opening 3101 is set at the bottom of the housing 310, which maximizes the area of ​​the opening 3101. The contact area between the phase change material 320 and the busbar 200 is the area of ​​the opening 3101, thereby maximizing the contact area between the phase change material 320 and the busbar 200 and improving the heat dissipation effect.

[0043] Furthermore, the enclosure 310 is a heat-conducting box.

[0044] The housing 310 is made of a thermally conductive material, such as metal, which has good heat dissipation. The heat absorbed by the phase change material 320 can be quickly transferred into the heat-conducting box and diffused to the external environment through the heat-conducting box, thereby improving the heat dissipation efficiency of the busbar 200.

[0045] In this embodiment, the enclosure 310 further includes an enclosure body 311, a connecting part 312, and a sealing and fixing structure. The enclosure body 311 is provided with a receiving cavity and an opening 3101. The connecting part 312 is located on the side of the enclosure body 311 facing the busbar 200. The connecting part 312 is arranged around the outer periphery of the enclosure body 311. The connecting part 312 and the busbar 200 are sealed and connected by the sealing and fixing structure.

[0046] In this embodiment, the connecting part 312 has a ring-shaped structure and is arranged around the outer periphery of the box body 311. This can prevent the connecting part 312 from occupying the internal space of the box body 311 and reducing the contact area between the phase change material 320 and the busbar 200. After the connecting part 312 and the busbar 200 are sealed and connected by a sealing and fixing structure, leakage of the liquid phase change material 320 can be prevented.

[0047] Furthermore, the sealing and fixing structure includes fasteners and a sealing ring. The sealing ring is located between the connecting part 312 and the manifold 200, and the sealing ring surrounds the outer periphery of the opening 3101, that is, the opening 3101 is located inside the ring of the sealing ring. The connecting part 312 is fixedly connected to the manifold 200 by the fasteners, and the connecting part 312 presses the sealing ring against the manifold 200.

[0048] Understandably, after the sealing ring is placed between the connecting part 312 and the manifold 200, the sealing ring is then fixedly connected to the manifold 200 by fasteners, so that the connecting part 312 presses the sealing ring against the manifold 200, thereby achieving a sealed connection between the connecting part 312 and the manifold 200, so as to prevent leakage when the phase change material 320 at the opening 3101 inside the sealing ring changes into a liquid state.

[0049] Furthermore, the fastener includes a plurality of studs 313 and nuts 314 that are screwed into the studs 313. The studs 313 are fixed at intervals on the busbar 200. The connecting part 312 is provided with connecting holes 315 corresponding to the studs 313. The studs 313 pass through the corresponding connecting holes 315 and are locked by the corresponding nuts 314.

[0050] In this embodiment, the stud 313 is fixed to the busbar 200 by riveting. A connecting hole 315 is made on the connecting part 312 corresponding to the position of the stud 313. After the stud 313 passes through the connecting hole 315 on the connecting part 312, it is then screwed and locked to the stud 313 by a nut 314, thus achieving a fixed connection between the connecting part 312 and the busbar 200. Compared with the existing locking structure using bolts and nuts, the locking operation of the stud 313 and nut 314 in this embodiment is faster.

[0051] In other embodiments, the stud 313 can also be fixed to the busbar 200 by welding.

[0052] To avoid the studs 313 interfering with the sealing ring and affecting the sealing effect, the shape of the housing body 311 has been optimized in this embodiment. Specifically, the outer peripheral wall of the housing body 311 is recessed to form a plurality of clearance grooves 3103, and the clearance grooves 3103 correspond one-to-one with the studs 313; the connecting part 312 includes a sealing area 3121 and a fixing area 3122 corresponding to the clearance grooves 3103. The sealing area 3121 is arranged around the outer periphery of the housing body 311, and the fixing area 3122 protrudes from the inner periphery of the sealing area 3121. The fixing area 3122 extends into the corresponding clearance groove 3103 and connects to the side wall of the clearance groove 3103. The sealing ring is located between the sealing area 3121 and the busbar 200, and the fixing area 3122 has a connecting hole 315.

[0053] In this embodiment, regarding the placement of the studs 313, recessed relief grooves 3103 corresponding to the studs 313 are provided inward on the outer peripheral wall of the housing body 311. The connecting part 312 is designed in sections, so that the annular sealing ring is arranged around the outer periphery of the housing body 311. The sealing ring is placed between the sealing area 3121 and the manifold 200. The fixing area 3122, which protrudes from the inner periphery of the sealing area 3121 and extends into the corresponding relief groove 3103 and connects with the side wall of the relief groove 3103, is used to insert with the studs 313 and then lock with the nut 314. This can prevent the studs 313 from interfering with the sealing ring and affecting the sealing effect. In this embodiment, the clearance groove 3103 is recessed into the housing body 311, which is equivalent to reducing the volume of the receiving cavity, thereby reducing the amount of phase change material 320 used. In addition, the fixing area 3122 will also reduce the contact area between the phase change material 320 and the busbar 200. To address this, this embodiment designs clearance holes on the outer peripheral wall of the housing body 311 according to the position of the stud 313, which can minimize the change in the contact area between the phase change material 320 and the busbar 200 and the change in the amount of phase change material 320 used, so as to ensure reliable heat dissipation of the phase change material 320 to the busbar 200.

[0054] The dimensions of the clearance groove 3103 should be large enough to accommodate the stud 313, nut 314 and tightening tool; further details will not be provided.

[0055] Furthermore, the number of studs 313 is at least three, with the three studs 313 arranged in a triangular pattern.

[0056] By setting at least three studs 313 and making three of them triangularly distributed, the connection nodes between the housing 310 and the busbar 200 can be triangularly distributed, thereby improving the connection stability between the housing 310 and the busbar 200.

[0057] Specifically, such as Figure 2 As shown, there are three studs 313, which can not only ensure the connection stability between the housing 310 and the busbar 200, but also further ensure the reliable heat dissipation of the phase change material 320 to the busbar 200.

[0058] Furthermore, the width of the busbar 200 extends along the second direction (X direction in the figure), the length of the busbar 200 extends along the third direction (Y direction in the figure), the width of the housing body 311 extends along the second direction, the length of the housing body 311 extends along the third direction, and the first direction, the second direction, and the third direction are perpendicular to each other; there are three studs 313, of which one stud 313 is located on the side of the housing body 311 away from the electrical component 100 along the third direction, and the other two studs 313 are located on both sides of the housing body 311 along the second direction and adjacent to the electrical component 100.

[0059] In this embodiment, three studs 313 are riveted and fixed to the side of the busbar 200 away from the electrical component 100 along the thickness direction. One stud 313 is designed on the side of the housing body 311 away from the electrical component 100 along the second direction, and the other two studs 313 are designed on both sides of the housing body 311 along the first direction and adjacent to the electrical component 100. After the three studs 313 are inserted into the corresponding connection holes 315 and locked by the corresponding nuts 314, the connection part 312 can tightly press the sealing ring against the busbar 200, avoiding the problem of leakage of liquid phase change material 320 due to insufficient pressing force at a certain position.

[0060] Furthermore, the enclosure 310 extends along both sides of the second direction to the edge of the busbar 200 along the second direction, and one side of the enclosure 310 extends along the third direction to one edge of the busbar 200 along the third direction. The other side of the enclosure 310 along the third direction protrudes from the side of the electrical component 100 along the third direction. This structural design maximizes the area of ​​the opening 3101 of the enclosure 310, increasing the contact area between the phase change material 320 within the enclosure 310 and the busbar 200, thereby achieving efficient heat dissipation from the busbar 200.

[0061] The heat dissipation structure 300 of this embodiment can be reused and used in large quantities for the same type of busbar 200. Whether before or after expansion, when the electrical component 100 is connected to the busbar 200, the heat dissipation structure 300 of this embodiment can be used to dissipate heat from the busbar 200 to provide reliable heat dissipation for the electrical component 100.

[0062] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An electrical connection heat dissipation assembly, characterized in that, The device includes an electrical component (100), a busbar (200), and a heat dissipation structure (300). The busbar (200) is electrically connected to the electrical component (100). The heat dissipation structure (300) includes a housing (310) and a phase change material (320). The housing (310) has a receiving cavity and an opening (3101) communicating with the receiving cavity. The housing (310) is fixed on the busbar (200). The housing (310) and the busbar (200) are sealed together. The opening (3101) faces the busbar (200). The phase change material (320) is located in the receiving cavity and passes through the opening (3101) to contact the busbar (200).

2. The electrical connection heat dissipation assembly according to claim 1, characterized in that, The thickness of the busbar (200) extends along a first direction, and the housing (310) is located on one side of the busbar (200) along the first direction; and / or, The enclosure (310) is adjacent to the electrical component (100).

3. The electrical connection heat dissipation assembly according to claim 1 or 2, characterized in that, The housing (310) is provided with a plurality of vent holes (3102), the vent holes (3102) are connected to the receiving cavity, and the upper end surface of the phase change material (320) is lower than the vent holes (3102).

4. The electrical connection heat dissipation assembly according to claim 3, characterized in that, The thickness of the busbar (200) extends along a first direction, which is a vertical direction. The opening (3101) is located at the bottom of the box (310). The bottom of the box (310) is sealed to the busbar (200). The vent (3102) is located on the top wall of the box (310) directly opposite the opening (3101).

5. The electrical connection heat dissipation assembly according to claim 4, characterized in that, The enclosure (310) includes a main body (311), a connecting part (312), and a sealing and fixing structure. The main body (311) has a receiving cavity and the opening (3101). The connecting part (312) is located on the side of the main body (311) facing the busbar (200). The connecting part (312) is arranged around the outer periphery of the main body (311). The connecting part (312) and the busbar (200) are sealed and connected through the sealing and fixing structure.

6. The electrical connection heat dissipation assembly according to claim 5, characterized in that, The sealing and fixing structure includes a fastener and a sealing ring. The sealing ring is located between the connecting part (312) and the busbar (200). The sealing ring surrounds the outer periphery of the opening (3101). The connecting part (312) is fixedly connected to the busbar (200) by the fastener. The connecting part (312) presses the sealing ring against the busbar (200).

7. The electrical connection heat dissipation assembly according to claim 6, characterized in that, The fastener includes a plurality of studs (313) and nuts (314) that are screwed into the studs (313). The studs (313) are fixed at intervals on the busbar (200). The connecting part (312) is provided with connecting holes (315) that correspond one-to-one with the studs (313). The studs (313) pass through the corresponding connecting holes (315) and are locked by the corresponding nuts (314).

8. The electrical connection heat dissipation assembly according to claim 7, characterized in that, The outer peripheral wall of the housing body (311) is recessed to form a plurality of clearance grooves (3103), and the clearance grooves (3103) correspond one-to-one with the studs (313); the connecting part (312) includes a sealing area (3121) and a fixing area (3122) corresponding one-to-one with the clearance grooves (3103). The sealing area (3121) is arranged around the outer periphery of the housing body (311), and the fixing area (3122) protrudes from the inner periphery of the sealing area (3121). The fixing area (3122) extends into the corresponding clearance groove (3103) and is connected to the side wall of the clearance groove (3103). The sealing ring is located between the sealing area (3121) and the busbar (200). The fixing area (3122) is provided with the connecting hole (315).

9. The electrical connection heat dissipation assembly according to claim 7, characterized in that, The number of studs (313) is at least three, wherein the three studs (313) are arranged in a triangular pattern.

10. The electrical connection heat dissipation assembly according to claim 9, characterized in that, The width of the busbar (200) extends along the second direction, and the length of the busbar (200) extends along the third direction. The width of the housing body (311) extends along the second direction, and the length of the housing body (311) extends along the third direction. The first direction, the second direction, and the third direction are perpendicular to each other. There are three studs (313). Of the three studs (313), one stud (313) is located on the side of the housing body (311) away from the electrical component (100) along the third direction, and the other two studs (313) are located on both sides of the housing body (311) along the second direction and adjacent to the electrical component (100).

11. The electrical connection heat dissipation assembly according to claim 10, characterized in that, The enclosure (310) extends on both sides along the second direction to the edge of the busbar (200) along the second direction, the enclosure (310) extends on one side along the third direction to one edge of the busbar (200) along the third direction, and the enclosure (310) protrudes on the other side along the third direction from the side of the electrical component (100) along the third direction.

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