A copper bar fixing assembly, a battery pack and an electric device

Abstract

Embodiments of the present application provide a copper bar fixing assembly, a battery pack and an electric device. The copper bar fixing assembly comprises a first support, the first support being provided with a first clamping piece, a second clamping piece and a connecting piece, the connecting piece being connected between the first clamping piece and the second clamping piece, a clamping space for mounting a copper bar being formed between the first clamping piece and the second clamping piece, at least one of the first clamping piece and the second clamping piece comprising a first clamping section and a second clamping section, one end of the first clamping section being connected with the connecting piece, the other end of the first clamping section being connected with the second clamping section, and the included angle between the first clamping section and the connecting piece being an acute angle. In the present application, the included angle between the first clamping section and the connecting piece is an acute angle, so that the first clamping section can provide an inward clamping force for the second clamping section, so that the copper bar can be more tightly squeezed during the process of being inserted into the clamping space, thereby forming a larger clamping force around the copper bar, ensuring the stability of the copper bar in a high-vibration environment, and reducing the shaking of the copper bar.

Description

Technical Field

[0001] This application relates to the field of copper busbar fixing technology, specifically to a copper busbar fixing component, a battery pack, and an electrical device. Background Technology

[0002] As the main connecting conductor between high-voltage components inside the battery pack, the stability of the copper busbar is crucial for the normal operation of the battery pack. Improper connection of the copper busbar can cause problems such as abnormal operation of the battery pack, damage to the copper busbar, and increased contact resistance at the fixed end leading to serious overheating.

[0003] In the prior art, the copper busbar is placed in the receiving groove of the mounting bracket, and the opening end of the receiving groove is provided with a blocking part, which is used to prevent the copper busbar from leaving the receiving groove. However, the clamping force of the mounting bracket is limited, and the copper busbar will shake relative to the mounting bracket during use, which will affect the contact resistance of the copper busbar connection end and reduce the overall performance of the battery pack.

[0004] There is currently no effective solution to the problem of how to achieve a stable connection of copper busbars in existing technologies. Summary of the Invention

[0005] This application provides a copper busbar fixing assembly, a battery pack, and an electrical device, aiming to solve the problem in the prior art of how to achieve a stable connection of the copper busbar while ensuring convenient disassembly.

[0006] According to one aspect of the embodiments of this application, a copper busbar fixing assembly is provided, including: a first bracket, the first bracket having a first clamping member, a second clamping member and a connecting member, the connecting member connecting between the first clamping member and the second clamping member, a clamping space for installing the copper busbar being formed between the first clamping member and the second clamping member, at least one of the first clamping member and the second clamping member including a first clamping segment and a second clamping segment, one end of the first clamping segment being connected to the connecting member, the other end of the first clamping segment being connected to the second clamping segment, and the included angle between the first clamping segment and the connecting member being an acute angle.

[0007] The embodiments of this application achieve the following technical effects: The angle between the first clamping section and the connector is an acute angle, which allows the first clamping section to provide an inward clamping force to the second clamping section. This results in the copper busbar being more forcefully squeezed during insertion into the clamping space, thereby forming a larger clamping force around the copper busbar. This ensures the stability of the copper busbar in high-vibration environments, reduces copper busbar swaying, and further reduces the contact resistance and overheating risk at the connection end. Simultaneously, when it is necessary to replace or maintain the copper busbar, only an outward force needs to be applied to the first and second clamping members to expand the clamping space, facilitating the removal of the copper busbar from the clamping space. This method does not damage the copper busbar itself or the internal structure of the battery pack, while ensuring the convenience of copper busbar disassembly.

[0008] Furthermore, the second clamping section is arranged perpendicularly to the connector, and the second clamping section is used to abut against the copper busbar.

[0009] The embodiments of this application achieve the following technical effects: the second clamping section is arranged perpendicularly to the connector, and when clamping the copper busbar, the second clamping section can be completely attached to the side of the copper busbar, which increases the contact area between the clamping component and the copper busbar, thereby further improving the stability of the copper busbar.

[0010] Furthermore, the first clamping member and the second clamping member can undergo elastic deformation, and the Z-direction height of the first clamping member and the second clamping member is greater than the width of the copper busbar; the first clamping member and the second clamping member are mirror-symmetrically arranged about the connector.

[0011] The embodiments of this application achieve the following technical effects: the first and second clamping members can undergo elastic deformation, allowing the copper busbar to be firmly installed in the copper busbar fixing assembly under elastic clamping force, and preventing damage to the first and second clamping members when applying external force to disassemble the copper busbar. The Z-axis height of the first and second clamping members is greater than the width of the copper busbar, ensuring that the copper busbar is completely accommodated within the clamping space, making the installation more reliable. The first and second clamping members are mirror-symmetrically arranged about the connector, allowing the copper busbar to be evenly stressed on both sides.

[0012] Furthermore, the edges of the first clamping member and the second clamping member are provided with flanges, which are bent toward the side away from the clamping space; and / or, the first clamping member and the second clamping member are provided with protruding structures, which are arranged toward the clamping space, and the protruding structures on the first clamping member and the protruding structures on the second clamping member are arranged opposite to each other.

[0013] The embodiments of this application achieve the following technical effects: The flange bends away from the clamping space, effectively preventing the edge of the clamping component from contacting the surface of the copper busbar, thereby avoiding damage to the copper busbar insulation layer caused by sharp edges. The clamping component holds the copper busbar through a protruding structure. The protruding structure increases the distance between the edges of the first and second clamping components, reducing the probability of contact between the copper busbar and the edges of the first and second clamping components during installation, thus preventing wear on the copper busbar by the edges of the clamping components or punctures to the insulation layer of the copper busbar by edge burrs.

[0014] Furthermore, the first support is a metal stamping part.

[0015] The embodiments of this application achieve the following technical effects: Compared with other materials (such as plastics or certain composite materials), metal stampings can provide stronger clamping force to avoid copper busbar loosening and poor contact due to insufficient material strength. Metal materials have high durability, meeting the warranty period requirements of the battery pack. Metal materials have good thermal conductivity, effectively dissipating heat generated on the copper busbar and preventing overheating damage.

[0016] Further, the copper busbar fixing component further includes: a second bracket, which is connected to the side of the connecting member背离夹持空间的一侧连接.

[0017] The embodiments of the present application achieve the following technical effects: The first bracket and the second bracket are of a split structure. Compared with the integrally provided bracket, the first bracket can match the second brackets of different heights according to the usage requirements to adjust the Z-direction height of the copper busbar from the battery pack box body.

[0018] Further, the second bracket is provided with a groove, which runs through along the length direction of the clamping space, and the second bracket is of a "U" - shaped structure or a "square" - shaped structure.

[0019] The embodiments of the present application achieve the following technical effects: The groove of the second bracket runs through along the length direction of the clamping space, the extending direction of the groove is the length direction of the second bracket, and the length direction of the clamping space is the length direction of the second bracket, that is, the length direction of the second bracket is the same as the length direction of the first bracket. As long as the top surface width of the second bracket is not less than the width of the first bracket, the first bracket can be fully supported. Therefore, this design structure makes the width dimension of the second bracket the smallest, which helps to reduce the size of the entire copper busbar fixing component and enables the copper busbar fixing component to be installed in a narrow space; the length direction of the second bracket is the same as the length direction of the first bracket, that is, the second bracket is connected to the first bracket along the length direction, which can also increase the connection area between the two brackets and enhance the connection reliability; among them, the setting of the groove can reduce the weight of the second bracket and thus reduce the manufacturing cost of the second bracket.

[0020] Further, the difference between the thickness dimension of the copper busbar and the width dimension of the clamping space is D, where 0 < D ≤ 1 mm.

[0021] The embodiments of the present application achieve the following technical effects: The first clamping member and the second clamping member are in interference fit with the copper busbar, and the interference amount is not greater than 1 mm. While ensuring that the copper busbar is firmly clamped, it avoids the difficulty of inserting the copper busbar due to too large interference amount.

[0022] According to another aspect of the embodiments of the present application, a battery pack is provided. The battery pack includes a battery pack box body and the above - mentioned copper busbar fixing component, and the copper busbar fixing component is fixedly connected to the battery pack box body.

[0023] The embodiments of the present application achieve the following technical effects: The battery pack integrates the copper busbar fixing component in the above - mentioned embodiments, significantly improving the stability of the copper busbar connection and the space utilization efficiency in the battery pack, and providing a feasible solution for the lightweight, miniaturization and high - energy - density design of the battery pack.

[0024] It should be noted that in the translation of "背离夹持空间的一侧连接", the expression "背离夹持空间的一侧连接" in the original text seems a bit unclear. I translated it as "背离夹持空间的一侧连接" as accurately as possible according to the context. If there is a more accurate expression in the original Chinese, it can be adjusted accordingly to make the translation more precise.According to another aspect of the embodiments of this application, an electrical device is provided, which includes the battery pack described above, and the copper busbar fixing assembly inside the battery pack is the copper busbar fixing assembly described above.

[0025] The embodiments of this application achieve the following technical effects: The electrical device integrates the copper busbar fixing component in the above embodiments, so that the copper busbar is stably connected to the high-voltage electrical components in the battery pack, ensuring the stable fixing of the copper busbar under various working conditions, reducing the increase in contact internal resistance caused by the shaking of the copper busbar, thereby effectively avoiding abnormal operation of the high-voltage components, enhancing the continuous and stable operation capability of the electrical device, and improving the safety performance of the electrical device. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0027] Figure 1 This is a schematic diagram of the structure of the first support provided in an embodiment of this application;

[0028] Figure 2 This is a schematic diagram of the structure of the first support provided in an embodiment of this application;

[0029] Figure 3 This is a schematic diagram of the structure of a copper busbar fixing assembly provided in an embodiment of this application;

[0030] Figure 4 This is an exploded view of a copper busbar fixing assembly provided in an embodiment of this application;

[0031] Figure 5 This is a schematic diagram of the structure of a copper busbar fixing assembly provided in an embodiment of this application;

[0032] Figure 6 This is a schematic diagram of the structure of the second support provided in one embodiment of this application;

[0033] Figure 7 This is a schematic diagram of the installation structure of the copper busbar fixing assembly and the copper busbar according to an embodiment of this application;

[0034] Figure 8 This is a schematic diagram of the internal structure of a battery pack provided in one embodiment of this application.

[0035] Explanation of reference numerals in the attached figures:

[0036] 10. First support;

[0037] 11. First clamping member; 111. First clamping section; 112. Second clamping section; 12. Second clamping member; 13. Connecting member; 14. Flanged edge; 15. Protruding structure;

[0038] 20. Clamping space;

[0039] 30. Second support;

[0040] 31. Groove;

[0041] 40. Copper busbar;

[0042] 50. Insulating sheath;

[0043] 60. Battery pack casing;

[0044] 70. Bolts. Detailed Implementation

[0045] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0046] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0047] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0048] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0049] Combination Figures 1 to 8 As shown, according to a specific embodiment of this application, a copper busbar fixing assembly is provided.

[0050] Specifically, the copper busbar fixing assembly includes: a first bracket 10, the first bracket 10 having a first clamping member 11, a second clamping member 12 and a connector 13, the connector 13 being connected between the first clamping member 11 and the second clamping member 12, forming a clamping space 20 for installing the copper busbar 40 between the first clamping member 11 and the second clamping member 12, at least one of the first clamping member 11 and the second clamping member 12 including a first clamping segment 111 and a second clamping segment 112, one end of the first clamping segment 111 being connected to the connector 13, the other end of the first clamping segment 111 being connected to the second clamping segment 112, and the included angle between the first clamping segment 111 and the connector 13 being an acute angle.

[0051] In the embodiments of this application, a clamping space 20 is formed between the first clamping member 11 and the second clamping member 12 to clamp the copper busbar 40. The angle between the first clamping segment 111 and the connector 13 is an acute angle, so that the first clamping segment 111 can provide an inward clamping force to the second clamping segment 112, so that the copper busbar 40 is more forcefully squeezed during insertion into the clamping space 20, thereby forming a larger clamping force around the copper busbar 40, ensuring the stability of the copper busbar 40 in a high-vibration environment, reducing the shaking of the copper busbar 40, and further reducing the contact internal resistance and overheating risk of the connection end. At the same time, when it is necessary to replace or maintain the copper busbar, only an outward force needs to be applied to the first clamping member 11 and the second clamping member 12 to expand the clamping space 20, making it easy to remove the copper busbar 40 from the clamping space 20. This method will not cause damage to the copper busbar 40 itself or the internal structure of the battery pack, while ensuring the convenience of disassembling the copper busbar 40.

[0052] like Figure 1 , Figure 2 As shown, both the first clamping member 11 and the second clamping member 12 include a first clamping section 111 and a second clamping section 112. The first clamping section 111 of the first clamping member 11 is set at an acute angle to the connecting member 13, and the first clamping section 111 of the second clamping member 12 is also set at an acute angle to the connecting member 13. Preferably, the first clamping member 11 and the second clamping member 12 are mirror-symmetrically arranged about the connecting member 13. When the copper busbar 40 is clamped in the clamping space 20, both the first clamping member 11 and the second clamping member 12 apply an elastic force to the copper busbar 40, and the applied elastic forces are equal, so that the two sides of the copper busbar 40 are evenly stressed.

[0053] As an alternative implementation, one of the first clamping member 11 and the second clamping member 12 includes a first clamping segment 111 and a second clamping segment 112. For example, only the first clamping member 11 includes a first clamping segment 111 and a second clamping segment 112. The first clamping segment 111 of the first clamping member 11 is set at an acute angle to the connector 13, and the second clamping segment 112 can be set perpendicular to the connector 13.

[0054] It should be noted that the first clamping segment 111 can be linear (e.g., ...). Figures 1 to 5 As shown), it can also be curved. When the first clamping section 111 is curved, the angle between the first clamping section 111 and the connector 13 is an acute angle, which means that the angle between the tangent of the curved section of the first clamping section 111 and the connector 13 is an acute angle.

[0055] Furthermore, the second clamping section 112 is arranged perpendicularly to the connector 13, and the second clamping section 112 is used to abut against the copper busbar 40.

[0056] In the embodiments of this application, the second clamping section 112 is arranged perpendicularly to the connector 13. When clamping the copper busbar 40, the second clamping section 112 can be completely attached to the side of the copper busbar 40, which increases the contact area between the clamping member and the copper busbar 40, thereby further improving the stability of the copper busbar 40 installation.

[0057] like Figure 1 , Figure 2 , Figure 7 As shown, the first clamping member 11 and the second clamping member 12 are mirror-symmetrically arranged about the connecting member 13, meaning that the structures of the first clamping member 11 and the second clamping member 12 are completely identical. Taking the first clamping member 11 as an example, the first clamping member 11 includes a first clamping segment 111 and a second clamping segment 112, both of which are rectangular plate structures. The first clamping segment 111 is connected to the connecting member 13, and the included angle between the first clamping segment 111 and the connecting member 13 is an acute angle. The second clamping segment 112 is connected to the first clamping segment 111 and is perpendicular to the connecting member 13. The second clamping segment 112 of the first clamping member 11 and the second clamping segment 112 of the second clamping member 12 are arranged parallel to each other. The Z-axis height of the first clamping member 11 and the second clamping member 12 is greater than the width of the copper busbar 40, so that the copper busbar 40 can be completely accommodated within the clamping space 20, making the installation more reliable. When clamping the copper busbar 40, the second clamping section 112 of the first clamping member 11 is in contact with the first side of the copper busbar 40, and the second clamping section 112 of the second clamping member 12 is in contact with the second side of the copper busbar 40. An insulating sleeve 50 is provided over the portion of the copper busbar 40 in contact with the second clamping section 112. The insulating sleeve 50 not only prevents electrical short circuits between the copper busbar 40 and the second clamping section 112, but also protects the surface of the copper busbar 40 from wear or damage.

[0058] It should be noted that, Figure 7 The Z-direction shown is the width direction of the copper busbar 40. Figure 7 The X direction shown is the length direction of the copper busbar 40. Figure 7 The Y direction shown is the thickness direction of the copper busbar (40mm).

[0059] In one exemplary embodiment of this application, the first clamping member 11 and the second clamping member 12 may undergo elastic deformation.

[0060] The first clamping member 11 and the second clamping member 12 can produce elastic deformation so that the copper busbar 40 is firmly installed in the copper busbar fixing assembly under elastic clamping force, and the first clamping member 11 and the second clamping member 12 are not easily damaged when the copper busbar 40 is disassembled by applying external force to the first clamping member 11 and the second clamping member 12.

[0061] In one exemplary embodiment of this application, the edges of the first clamping member 11 and the second clamping member 12 are provided with flanges 14, which are bent toward the side away from the clamping space 20.

[0062] In the embodiments of this application, the flange 14 is bent toward the side away from the clamping space 20, which can effectively prevent the edge of the clamping member from contacting the surface of the copper busbar 40, thereby preventing the burrs on the edge of the clamping member from piercing the insulation layer of the copper busbar 40.

[0063] like Figure 1 As shown, the first clamping member 11 includes a first clamping segment 111 and a second clamping segment 112. The edge of the second clamping segment 112 is provided with a flange 14, which extends circumferentially along the second clamping segment 112 and is bent toward the side away from the clamping space 20. Similarly, the second clamping member 12 includes the first clamping segment 111 and the second clamping segment 112. The edge of the second clamping segment 112 is provided with a flange 14, which extends circumferentially along the second clamping segment 112 and is bent toward the side away from the clamping space 20.

[0064] As an alternative implementation, the edges of the first clamping member 11 and the second clamping member 12 are polished to remove burrs and prevent burrs from piercing the insulation layer of the copper busbar 40.

[0065] In one exemplary embodiment of this application, the first clamping member 11 and the second clamping member 12 are provided with a protrusion structure 15, which is disposed toward the clamping space 20.

[0066] In the embodiments of this application, the first clamping member 11 and the second clamping member 12 clamp the copper busbar 40 through the protrusion structure 15. The protrusion structure 15 increases the distance between the edge of the first clamping member 11 and the edge of the second clamping member 12. During the installation of the copper busbar 40, the probability of the copper busbar 40 contacting the edges of the first clamping member 11 and the second clamping member 12 is reduced, so as to avoid the wear of the edges of each clamping member on the copper busbar 40 or the edge burrs piercing the insulation layer of the copper busbar 40.

[0067] like Figure 2 As shown, the first clamping member 11 includes a first clamping section 111 and a second clamping section 112. A protruding structure 15 is provided on the side of the second clamping section 112 near the clamping space 20, and the surface of the protruding structure 15 can completely fit against the side of the copper busbar 40. The second clamping member 12 also includes a first clamping section 111 and a second clamping section 112. A protruding structure 15 is provided on the side of the second clamping section 112 near the clamping space 20, and the surface of the protruding structure 15 can completely fit against the side of the copper busbar 40. The protruding structure 15 on the second clamping member 12 is positioned opposite to the protruding structure 15 on the first clamping member 11, so that the copper busbar 40 is clamped between the two protruding structures 15.

[0068] In one exemplary embodiment of this application, the edges of the first clamping member 11 and the second clamping member 12 are provided with flanges 14, which are bent toward the side away from the clamping space 20. At the same time, the first clamping member 11 and the second clamping member 12 are also provided with protruding structures 15, which are disposed toward the clamping space 20. The protruding structures 15 on the second clamping member 12 are disposed opposite to the protruding structures 15 on the first clamping member 11, so that the copper busbar 40 is clamped between the two protruding structures 15.

[0069] In one exemplary embodiment of this application, the first bracket 10 is a metal stamping.

[0070] In the embodiments of this application, compared to other materials (such as plastics or certain composite materials), metal stampings, while possessing a certain degree of elastic deformation capability, can also provide stronger clamping force to avoid loosening and poor contact of the copper busbar 40 due to insufficient material strength. Metal materials have high durability, meeting the warranty period requirements of the battery pack. Simultaneously, metal materials also have good thermal conductivity, effectively dissipating heat generated on the copper busbar 40 and preventing overheating and damage.

[0071] like Figure 1 , Figure 2As shown, the first bracket 10 is a metal stamping part, and the first bracket 10 has a U-shaped structure. The first clamping member 11 and the second clamping member 12 on the first bracket 10 can both undergo elastic deformation under external force to firmly clamp the copper busbar 40 between the first clamping member 11 and the second clamping member 12. The material thickness of the first bracket 10 is 0.8mm to 2.0mm to ensure that the first clamping member 11 and the second clamping member 12 have sufficient elastic force.

[0072] In one exemplary embodiment of this application, the first bracket 10 is connected to the battery pack housing 60.

[0073] In the embodiments of this application, the connection between the first bracket 10 and the battery pack housing 60 can fix the copper busbar 40 relative to the battery pack housing 60. Specifically, the first bracket 10 can be connected to the battery pack housing 60 through the connector 13. The connector 13 and the battery pack housing 60 can be connected by welding or by bolts 70.

[0074] In one exemplary embodiment of this application, the copper busbar fixing assembly further includes a second bracket 30, which is connected to the side of the connector 13 away from the clamping space 20.

[0075] In the embodiments of this application, the second bracket 30 is used to connect the battery pack housing 60. The first bracket 10 and the second bracket 30 are separate structures. Compared with the bracket set as a whole, the first bracket 10 can be matched with the second bracket 30 of different heights according to the usage requirements, so as to adjust the Z-direction height of the copper busbar 40 from the battery pack housing 60.

[0076] like Figure 3 , Figure 4 , Figure 5 , Figure 7 As shown, the first bracket 10 and the second bracket 30 are separate structures, with the second bracket 30 welded to the first bracket 10. The second bracket 30 can be connected to the battery pack housing 60 by welding or by bolts 70.

[0077] As an alternative implementation, the first bracket 10 and the second bracket 30 can be connected by screws.

[0078] In one exemplary embodiment of this application, the second bracket 30 is provided with a groove 31, which is provided through the clamping space 20 along its length.

[0079] In an embodiment of the present application, the groove 31 of the second bracket 30 runs through along the length direction of the clamping space 20. The extending direction of the groove 31 is the length direction of the second bracket 30, and the length direction of the clamping space 20 is the length direction of the first bracket 10. That is, the length direction of the second bracket 30 is the same as that of the first bracket 10. As long as the top surface width of the second bracket 30 is not less than the width of the first bracket 10, the first bracket 10 can be fully supported. Therefore, this design structure minimizes the width dimension of the second bracket 30, which helps to reduce the size of the entire copper bar fixing component and enables the copper bar fixing component to be installed in a narrow space. The length direction of the second bracket 30 is the same as that of the first bracket 10, that is, the second bracket 30 is connected to the first bracket 10 along the length direction, which can also increase the connection area between the two brackets and enhance the connection reliability. Among them, the setting of the groove 31 can reduce the weight of the second bracket 30, thereby reducing the manufacturing cost of the second bracket 30.

[0080] As Figure 3 , Figure 4 , Figure 5 , Figure 7 shown, the second bracket 30 has a "U" - shaped structure, and the extending direction of the groove 31 of the second bracket 30 is the same as the length direction of the clamping space 20.

[0081] As an alternative embodiment, as Figure 6 shown, the second bracket 30 has a "square" - shaped structure. When connected to the first bracket 10, the extending direction of the groove 31 of the second bracket 30 is the same as the length direction of the clamping space 20.

[0082] Furthermore, the difference between the thickness dimension of the copper bar 40 and the width dimension of the clamping space 20 is D, where 0 < D ≤ 1 mm.

[0083] In an embodiment of the present application, the thickness dimension of the copper bar 40−the width dimension of the clamping space 20 = D, where 0 < D ≤ 1 mm, such that the first clamping member 11 and the second clamping member 12 are in interference fit with the copper bar 40, and the interference amount is not greater than 1 mm. While ensuring that the copper bar 40 is firmly clamped, it avoids the difficulty of inserting the copper bar 40 due to too large interference amount.

[0084] According to another specific embodiment of the present application, a battery pack is provided. The battery pack includes a battery pack box body 60 and the copper bar fixing component in the above - mentioned embodiment, and the copper bar fixing component is fixedly connected to the battery pack box body 60.

[0085] In an embodiment of the present application, the battery pack integrates the copper bar fixing component in the above - mentioned embodiment, significantly improving the stability of the connection of the copper bar 40 in the battery pack and the space utilization efficiency, and providing a feasible solution for the lightweight, miniaturization and high - energy - density design of the battery pack.

[0086] like Figure 8 As shown, the battery pack housing 60 houses a battery module and a battery drive unit, with a copper busbar 40 positioned between them. To improve the power density of the battery pack, only a small installation space is reserved between the battery module and the battery drive unit. The second bracket 30 is fixedly connected to the battery pack housing 60 and is connected to the first bracket 10 along its length, meaning the length direction of the second bracket 30 is consistent with the length direction of the first bracket 10. This design reduces the width of the copper busbar fixing assembly, allowing it to fit within the narrow installation space.

[0087] According to another specific embodiment of this application, an electrical device is provided, which includes the battery pack in the above embodiment, and the copper busbar fixing assembly in the battery pack is the copper busbar fixing assembly in the above embodiment.

[0088] In the embodiments of this application, the electrical device can be a vehicle, aircraft, or robot, etc. The electrical device integrates the copper busbar fixing assembly in the above embodiments, so that the copper busbar 40 is stably connected to the high-voltage electrical components in the battery pack, ensuring the stable fixation of the copper busbar 40 under various working conditions, reducing the increase in contact internal resistance caused by the shaking of the copper busbar 40, thereby effectively avoiding abnormal operation of the high-voltage components, enhancing the continuous and stable operation capability of the electrical device, and improving the safety performance of the electrical device.

[0089] In this application, "multiple" refers to two or more.

[0090] In this application, unless otherwise expressly defined, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0091] The terms “first,” “second,” “third,” “fourth,” etc., in this application (if present) are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0092] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0093] Unless otherwise specified, all steps in this application may be performed sequentially or randomly. For example, if the method includes steps A and B, it means that the method may include steps A and B performed sequentially, or it may include steps B and A performed sequentially. For example, if the method may also include step C, it means that step C may be added to the method in any order. For example, the method may include steps A, B, and C, or it may include steps A, C, and B, or it may include steps C, A, and B, etc.

Claims

1. A copper busbar fixing assembly, characterized in that, Comprising: A first bracket (10), the first bracket (10) being provided with a first clamping member (11), a second clamping member (12) and a connecting member (13), the connecting member (13) being connected between the first clamping member (11) and the second clamping member (12), a clamping space (20) for mounting a copper bar (40) being formed between the first clamping member (11) and the second clamping member (12), at least one of the first clamping member (11) and the second clamping member (12) including a first clamping section (111) and a second clamping section (112), one end of the first clamping section (111) being connected to the connecting member (13), the other end of the first clamping section (111) being connected to the second clamping section (112), and the angle between the first clamping section (111) and the connecting member (13) being an acute angle.

2. The copper busbar fixing assembly according to claim 1, characterized in that, The second clamping section (112) is perpendicularly arranged with respect to the connecting member (13), and the second clamping section (112) is used for abutting against the copper bar (40).

3. The copper busbar fixing assembly according to claim 1 or 2, characterized in that, The first clamping member (11) and the second clamping member (12) can undergo elastic deformation, the Z-direction height of the first clamping member (11) and the second clamping member (12) being greater than the width of the copper bar (40); the first clamping member (11) and the second clamping member (12) are arranged symmetrically with respect to the connecting member (13) in a mirror image manner.

4. The copper busbar fixing assembly according to claim 1 or 2, characterized in that, Flanges (14) are provided at the edges of the first clamping member (11) and the second clamping member (12), the flanges (14) being bent towards the side away from the clamping space (20); and / or, protruding structures (15) are provided on the first clamping member (11) and the second clamping member (12), the protruding structures (15) being arranged towards the clamping space (20), and the protruding structures (15) on the first clamping member (11) being arranged opposite to the protruding structures (15) on the second clamping member (12).

5. The copper busbar fixing assembly according to claim 1 or 2, characterized in that, The first bracket (10) is a metal stamping part.

6. The copper busbar fixing assembly according to claim 1 or 2, characterized in that, The copper bar fixing assembly further comprises: A second bracket (30), the second bracket (30) being connected to the side of the connecting member (13)背离 the clamping space (20).

7. The copper busbar fixing assembly according to claim 6, characterized in that, The second bracket (30) is provided with a groove (31), the groove (31) being贯通设置 along the length direction of the clamping space (20), and the second bracket (30) being in a "C" - shaped structure or a "square" - shaped structure.

8. The copper busbar fixing assembly according to claim 1 or 2, characterized in that, The difference between the thickness dimension of the copper bar (40) and the width dimension of the clamping space (20) is D, where 0 < D ≤ 1 mm.

9. A battery pack, characterized in that, Comprising a battery pack box body (60) and the copper bar fixing assembly according to any one of claims 1 - 8, the copper bar fixing assembly being fixedly connected to the battery pack box body (60).

10. An electrical device, characterized in that, Comprising the battery pack according to claim 9.

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