Busbar support, battery pack and electric device

Abstract

The application provides a busbar support, a battery pack and an electrical equipment, and relates to the technical field of batteries. The base of the battery comprises a first surface and a second surface opposite in a first direction. The base comprises a plurality of first bearing parts arranged at intervals in a second direction, and a plurality of first guide structures arranged on the second surface. Each first guide structure is arranged correspondingly to one first bearing part. A first guide groove is formed between two adjacent first guide structures. A first through hole is formed in the groove bottom of the first guide groove and communicates with the first surface and the second surface. The first through hole is used for allowing a tab to pass through. The first through hole is located between two adjacent first bearing parts. The busbar support can reduce the probability of tab warping when the tab passes through, and improve the assembly efficiency of the battery pack.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a busbar bracket, a battery pack, and an electrical device. Background Technology

[0002] The battery pack includes multiple battery cells, and the positive and negative terminals of each battery cell are electrically connected through a busbar. The busbar needs to be installed and fixed by a busbar bracket. For example, the busbar is installed on a busbar bracket, which has through holes that allow the terminals to pass through. After the terminals pass through the through holes, they are welded to the busbar. The busbar bracket can improve the connection stability between the busbar and the battery cell terminals.

[0003] However, the busbar bracket in the aforementioned related technologies can cause the tabs to warp when they pass through, damaging the tabs and affecting the assembly efficiency of the battery pack. Utility Model Content

[0004] This application provides a busbar bracket, a battery pack, and an electrical device to solve the technical problem in the above-mentioned related technologies that the busbar bracket causes the tabs to warp when passing through, resulting in damage to the tabs and affecting the assembly efficiency of the battery pack.

[0005] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0006] A first aspect of this application provides a busbar bracket, which includes a base;

[0007] The base includes a first surface and a second surface that are opposite each other along a first direction. The base also includes a plurality of first support portions that are spaced apart along a second direction. The surface of the first support portion facing the first surface is used to support the first branch of the first busbar.

[0008] Multiple first guide structures are disposed on the second surface, each first guide structure is disposed corresponding to a first support part, and a first guide groove is formed between two adjacent first guide structures;

[0009] The bottom of the first guide groove is provided with a first through hole that connects the first surface and the second surface. The first through hole is used to allow the electrode tab to pass through, and the first through hole is located between two adjacent first support parts.

[0010] This application provides a busbar bracket. By providing multiple first support portions arranged at intervals along a second direction, it can support the first branch of the first busbar, meeting the installation requirements of the busbar in the battery module. A first through-hole between two adjacent first support portions allows the tab to pass through, solving the tab routing problem and preventing interference between the tab and the busbar bracket. A first guide structure is correspondingly provided with the first support portions, forming a first guide groove that guides the tab, allowing it to pass more smoothly through the first through-hole. This reduces the risk of short circuits caused by bending or twisting of the tab during installation, improving the assembly efficiency and reliability of the battery module.

[0011] One possible implementation also includes:

[0012] A first frame is disposed on the edge of the base along a third direction, wherein the third direction is perpendicular to both the second direction and the first direction;

[0013] The first partition structure is arranged at intervals with the first frame along the third direction, and the first supporting part is located between the first frame and the first partition structure.

[0014] In one possible implementation, a first limiting element is also included;

[0015] The first limiting member is disposed on the surface of the first partition structure facing the first frame, and the first limiting member is used to restrict the movement of the first support along the first direction.

[0016] In one possible implementation, a second limiting element is also included;

[0017] The second limiting member is disposed on the edge of the first bearing portion along the second direction, and the second limiting member is used to restrict the movement of the first busbar along the second direction.

[0018] In one possible implementation, the surface of the first guide structure facing away from the second side is an arc-shaped surface, so that the sidewall of the first guide groove is an arc-shaped surface.

[0019] In one possible implementation, the base further includes a plurality of second support portions spaced apart along the second direction, the surface of the second support portions facing the first surface being used to support the second branch of the second busbar, and the first support portions and the second support portions spaced apart along the third direction;

[0020] Multiple second guide structures are disposed on the second surface, each second guide structure is disposed corresponding to a second bearing part, and a second guide groove is formed between two adjacent second guide structures;

[0021] The bottom of the second guide groove is provided with a second through hole that connects the first surface and the second surface. The second through hole is used to allow the electrode tab to pass through, and the second through hole is located between two adjacent second support parts.

[0022] One possible implementation also includes:

[0023] The second frame is disposed on the third-direction edge of the base, and the second frame is disposed opposite to the first frame;

[0024] The second partition structure is arranged at intervals from the first partition structure along the third direction, and the second partition structure is located at the end of the second support portion facing the first partition structure, and the second support portion is located between the second frame and the second partition structure.

[0025] One possible implementation also includes a third limiting element;

[0026] The third limiting member is disposed on the surface of the second frame facing the second partition structure, and the third limiting member is used to restrict the movement of the second branch along the first direction.

[0027] In one possible implementation, the surface of the second guide structure facing away from the second side is an arc-shaped surface, so that the sidewall of the first guide groove is an arc-shaped surface.

[0028] In one possible implementation, the third limiting member has a guide surface, one end of which is connected to the second frame, and the other end extends downward toward the second support portion away from the second frame.

[0029] In one possible implementation, the second border includes a plurality of first reinforcing ribs.

[0030] In one possible implementation, the first partition structure and the second partition structure have a first interval along the third direction;

[0031] The first partition structure has multiple first partition structures, and the multiple first partition structures are arranged at intervals along the second direction, with a second interval formed between two adjacent first partition structures;

[0032] The second partition structure has multiple structures, and each second partition structure is arranged in a one-to-one correspondence with the first partition structure. There is a third gap between two adjacent second partition structures.

[0033] The first interval, the second interval, and the third interval are interconnected and form a groove for accommodating the wire harness.

[0034] One possible implementation also includes a snap-fit ​​mechanism;

[0035] The buckle is disposed on the first surface of the base and within the wire groove. The buckle is used to engage the wire harness within the wire groove and at least to restrict the movement of the wire harness along the first direction.

[0036] In one possible implementation, a support structure is also included, which is disposed on the side of the base opposite to the first bearing portion along a third direction;

[0037] The support structure extends away from the second surface relative to the base, and the support structure is used to cover the surface of the cell assembly perpendicular to the third direction.

[0038] In one possible implementation, a second reinforcing rib is also included, disposed on the surface of the support structure opposite to the second load-bearing portion.

[0039] A second aspect of this application provides a battery pack, which includes a cell assembly, a first busbar, and a busbar support as described above;

[0040] The battery cell assembly includes a battery cell and electrode tabs;

[0041] The first busbar includes a plurality of first branches, the first branches being disposed on the first support portion, and the electrode tab passing through the first through hole from the second side of the busbar bracket and being electrically connected to the first branch.

[0042] A third aspect of this application provides an electrical device that includes a battery pack as described above. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a schematic diagram of a busbar support structure provided in an embodiment of this application;

[0045] Figure 2 This is a structural schematic diagram of a busbar support from a second perspective, provided as an embodiment of this application.

[0046] Figure 3 This is a schematic diagram of the back structure of a busbar support provided in an embodiment of this application;

[0047] Figure 4This application provides a schematic diagram of the structure of a busbar support and a battery cell assembly during assembly.

[0048] Figure 5 This is a schematic diagram of the structure of a battery pack provided in an embodiment of this application.

[0049] Explanation of reference numerals in the attached figures:

[0050] 10. Busbar bracket; 20. Battery cell assembly; 30. First busbar; 40. Second busbar;

[0051] 21. Battery cell; 22. Electrode; 31. First branch; 32. First connecting part;

[0052] 41. The Second Branch;

[0053] 100. Base;

[0054] 110. First surface; 120. Second surface; 130. First bearing part; 140. First through hole;

[0055] 150. Second bearing section; 160. Second through hole;

[0056] 131. Second limiting component;

[0057] 200. First guiding structure;

[0058] 210. First guide groove;

[0059] 300, First border;

[0060] 400. First partition structure;

[0061] 410. First limiting element; 420. First gap; 430. Second gap;

[0062] 500. Second guiding structure;

[0063] 510. Second guide groove;

[0064] 600, Second border;

[0065] 610. First reinforcing rib; 620. Third limiting component;

[0066] 621. Guide surface;

[0067] 700. Second partition structure;

[0068] 710, Third Interval; 720, Cable Tray;

[0069] 721. Buckle;

[0070] 800. Supporting structure;

[0071] 810. Second reinforcing rib; 820. Connecting structure. Detailed Implementation

[0072] As described in the background section, the busbar support in the aforementioned related technologies can cause the tabs to warp when they pass through, damaging the tabs and affecting the assembly efficiency of the battery pack.

[0073] The reason for this problem is that the busbar support in the existing technology has through holes for the tabs to pass through. The tabs are relatively soft, and they may bend or warp before passing through the through holes. Because the through holes are narrow, the warped part cannot pass through. Alternatively, because the tab material is soft, it may also warp and deform when it comes into contact with the busbar support near the through hole, preventing the tab from passing through and causing damage to the tab due to warping or bending, thus affecting the assembly efficiency of the battery pack.

[0074] To address the aforementioned issues, this application provides a busbar bracket, a battery pack, and electrical equipment. The busbar bracket, by providing multiple first support portions spaced apart along a second direction, can support the first branch of the first busbar, meeting the installation requirements of the busbar in the battery module. A first through-hole between two adjacent first support portions allows the tab to pass through, solving the tab routing problem and preventing interference between the tab and the busbar bracket. A first guide structure is correspondingly provided with the first support portions, forming a first guide groove that guides the tab, allowing it to pass more smoothly through the first through-hole. This reduces the risk of short circuits caused by bending or twisting of the tab during installation, improving the assembly efficiency and reliability of the battery module.

[0075] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0076] refer to Figure 1 , Figure 2 and Figure 3 This application provides a busbar bracket 10, which may include a base 100. The base 100 may be an integrally injection molded structure.

[0077] The base 100 may include a first direction (e.g.) Figure 2 The first surface 110 and the second surface 120 are opposite each other in the Z direction, and the second surface 120 can be set toward the cell 21.

[0078] The base 100 may include multiple components along the second direction (e.g.) Figure 2 The first support portions 130 are arranged at intervals in the X direction, and the surface of the first support portion 130 facing the first surface 110 is used to support the first branch 31 of the first busbar 30. The base 100 also has a support portion for supporting the first connecting portion 32 of the first busbar 30.

[0079] refer to Figure 5 It is understood that the first busbar 30 may include a plurality of first branches 31 and a connecting portion connecting the plurality of first branches 31, and the tabs 22 of the battery cell 21 are used for welding connection with the first branches 31.

[0080] In some embodiments, the first support portion 130 may be made of a high-strength plastic, such as polycarbonate. High-strength plastics offer good insulation and cost advantages.

[0081] refer to Figure 1 , Figure 2 and Figure 3 A first through hole 140 is provided between two adjacent first support portions 130, connecting the first surface 110 and the second surface 120, allowing the tab 22 to pass through. Multiple first guide structures 200 are disposed on the second surface 120, each corresponding to one first support portion 130. A first guide groove 210 is formed between two adjacent first guide structures 200. The first guide structure 200 protrudes relative to the second surface 120. Two adjacent first guide structures 200 and the second surface 120 located between them form the first guide groove 210. The bottom of the first guide groove 210 is part of the structure of the second surface 120, and the first through hole 140 is provided at the bottom of the groove. The two first guide structures 200 can guide the tab 22 to pass through the first through hole 140.

[0082] In some embodiments, the first support portion 130 may be divided by a plurality of first through holes 140 extending upward from the base 100.

[0083] In some embodiments, the first guide structure 200 and the base 100 can be integrally injection molded, which can reduce the number of parts of the busbar bracket 10 and improve the assembly efficiency of the busbar bracket 10.

[0084] This application provides a busbar bracket 10. The busbar bracket 10, by providing multiple first support portions 130 arranged at intervals along a second direction, can support the first branch 31 of the first busbar 30, meeting the installation requirements of the busbar in the battery module. A first through-hole 140 between two adjacent first support portions 130 allows the tab 22 to pass through, solving the wiring problem of the tab 22 and preventing interference between the tab 22 and the busbar bracket 10. A first guide structure 200 is correspondingly provided with the first support portions 130, forming a first guide groove 210 that guides the tab 22, allowing it to pass more smoothly through the first through-hole 140. This reduces the risk of short circuits caused by bending or twisting of the tab 22 during installation, improving the assembly efficiency and reliability of the battery module.

[0085] In some embodiments, the first guide structure 200 can be designed as a semi-circle, V-shape, or U-shape, with the specific shape determined according to the shape of the tab 22 and installation requirements. For example, the first guide structure 200 can be designed as a V-shape, and two V-shaped first guide structures 200 can form a V-shaped first guide groove 210.

[0086] refer to Figure 2 and Figure 3 In some embodiments, the surface of the first guide structure 200 facing away from the second surface 120 is an arc-shaped surface, so that the sidewall of the first guide groove 210 is an arc-shaped surface. This allows the width of the first guide groove 210 along the first direction to gradually narrow from the opening of the first guide groove 210 to the second surface 120, thereby guiding the tab 22 to gradually shift toward and pass through the first through hole 140.

[0087] The curved surface design can better fit the shape of the tab 22, further optimize the guiding effect of the tab 22, make the tab 22 pass through the first through hole 140 more smoothly, reduce the friction and wear between the tab 22 and the first guide groove 210, extend the service life of the tab 22, and also help improve the overall performance and stability of the battery pack.

[0088] refer to Figure 2 and Figure 3 In some embodiments, the busbar support 10 may further include a first frame 300 and a first partition structure 400.

[0089] The first frame 300 is disposed on the base 100 along a third direction (e.g., ...). Figure 2 The edge of the Y direction in the middle, the third direction and the second direction (such as Figure 2 The X direction is coplanar with the second direction and the first direction, and the third direction is perpendicular to the second direction and the first direction.

[0090] The first partition structure 400 and the first frame 300 are arranged at intervals along the third direction, and the first support part 130 is located between the first frame 300 and the first partition structure 400.

[0091] In some embodiments, the first busbar 30 may be disposed between the first partition structure 400 and the first frame 300.

[0092] In this way, the above structural design can limit and protect the first busbar 30 set on the first support part 130, prevent the first busbar 30 from being displaced in the third direction on the first support part 130, improve the installation stability of the first busbar 30 on the busbar bracket 10, and improve the structural stability and reliability of the busbar bracket 10, ensuring the accurate installation position of the first busbar 30 in the battery module, thereby ensuring the electrical connection performance of the battery pack.

[0093] In some embodiments, the first frame 300 may be made of the same material as the base 100 (such as high-strength plastic or metal) and fixed by means of clips 721, screws or welding. For example, if both the first frame 300 and the base 100 are plastic parts, the first frame 300 and the base 100 may be an integral injection molded structure.

[0094] In some embodiments, the first partition structure 400 may be designed as a strip or a block, the specific shape of which is determined according to the spacing requirements of the first support portion 130. For example, the first partition structure 400 may be a plate-like structure.

[0095] In other embodiments, the first partition structure 400 may include a groove with multiple reinforcing members disposed therein to improve the structural strength of the first partition structure 400, thereby improving the structural strength of the busbar support 10.

[0096] In some embodiments, there may be multiple first partition structures 400, and the multiple first partition structures 400 can be arranged at intervals along the second direction so that the multiple first partition structures 400 can be arranged from one end of the base 100 to the other end along the second direction.

[0097] refer to Figure 2 and Figure 3 In some embodiments, the busbar support 10 may further include a first limiting member 410, which is disposed on the surface of the first partition structure 400 facing the first frame 300, and the first limiting member 410 is used to restrict the movement of the first branch 31 along the first direction.

[0098] In some embodiments, the first limiting member 410 may be designed as a stop, a baffle, or an elastic buckle 721. For example, the elastic buckle 721 may provide a certain elastic deformation space to facilitate the installation and removal of the first busbar 30.

[0099] In this way, the first limiting member 410 further enhances the fixing effect on the first busbar 30, prevents the first busbar 30 from shifting along the first direction on the first bearing part 130, avoids problems such as poor electrical connection caused by inaccurate position of the first busbar 30, and improves the stability and safety of the battery pack.

[0100] refer to Figure 2 and Figure 3 In some embodiments, the busbar support 10 may further include a second limiting member 131, which is disposed on the edge of the first bearing portion 130 along the second direction and is used to restrict the movement of the first busbar 30 along the second direction.

[0101] In some embodiments, the second limiting member 131 can be designed as a stop, a baffle, or an elastic buckle 721, the specific shape of which is determined according to the shape of the second busbar 40 and the installation requirements. For example, the second limiting member 131 can be a baffle that can extend in a third direction. When the first branch 31 of the first busbar 30 is disposed on the first support portion 130, the baffle can abut against the first branch 31 and limit the displacement or shaking of the first branch 31 in the second direction.

[0102] In this way, by setting the second limiting member 131, the first busbar 30 can be limited from another direction, so that the first busbar 30 can be installed more stably on the first bearing part 130, further reducing the risk of displacement of the first busbar 30 due to external force during use, ensuring the electrical connection of the battery pack is stable and reliable, and also providing convenience for the assembly and maintenance of the battery pack.

[0103] refer to Figure 2 and Figure 3 In some embodiments, the base 100 may further include a plurality of second support portions 150 arranged at intervals along a second direction. The surface of the second support portion 150 facing the first surface 110 is used to support the second branch 41 of the second busbar 40. The first support portion 130 and the second support portion 150 are arranged at intervals along a third direction.

[0104] This design enables the busbar bracket 10 to simultaneously support the first busbar 30 and the second busbar 40, meeting the installation requirements of multiple busbars in the battery pack and improving the versatility and applicability of the busbar bracket 10.

[0105] A second through hole 160 is provided between two adjacent second support portions 150, connecting the first surface 110 and the second surface 120, and the second through hole 160 is used to allow the electrode tab 22 to pass through. A plurality of second guide structures 500 are provided on the second surface 120, each second guide structure 500 corresponding to one second support portion 150, and a second guide groove 510 is formed between two adjacent second guide structures 500.

[0106] Thus, the second through hole 160 between two adjacent second support parts 150 allows the tab 22 to pass through, further optimizing the wiring path of the tab 22 and making the internal structure of the battery pack more compact and reasonable. At the same time, the arrangement of multiple second guide structures 500 forms a second guide groove 510, providing an additional guide path for the tab 22, further improving the installation efficiency and reliability of the tab 22.

[0107] In some embodiments, the first bus 30 may be a bus for recirculating the flow of a plurality of cells 21 in the battery pack. The second bus 40 may also be electrically connected to the tabs 22 on the cells 21, and may also be a bus for electrically connecting the battery pack to an external electronic device.

[0108] In some embodiments, the second support portion 150 may be made of the same material as the first support portion 130. For example, both the second support portion 150 and the first support portion 130 may be made of high-strength plastic, and the second support portion 150, the first support portion 130 and the base 100 may be manufactured by an integral injection molding process so that the base 100, the first support portion 130 and the second support portion 150 form an integral injection molded structure.

[0109] refer to Figure 2 and Figure 3 In some embodiments, the surface of the second guide structure 500 facing away from the second surface 120 is an arc-shaped surface, so that the sidewall of the first guide groove 210 is an arc-shaped surface.

[0110] The width of the second guide groove 510 along the first direction gradually narrows from the opening of the second guide groove 510 to the second surface 120, thereby guiding the tab 22 to gradually shift toward the second through hole 160 and pass through the second through hole 160.

[0111] The curved surface design can better fit the shape of the tab 22, further optimize the guiding effect of the tab 22, make the tab 22 pass through the second through hole 160 more smoothly, reduce the friction and wear between the tab 22 and the second guide groove 510, extend the service life of the tab 22, and also help improve the overall performance and stability of the battery pack.

[0112] refer to Figure 2 and Figure 3In some embodiments, the busbar support 10 may also include a second frame 600 and a second partition structure 700.

[0113] The second frame 600 is disposed on the third-direction edge of the base 100, and the second frame 600 is disposed opposite to the first frame 300.

[0114] The second partition structure 700 is arranged at a distance from the first partition structure 400 along a third direction, and the second partition structure 700 is located at the end of the second support portion 150 facing the first partition structure 400. The second support portion 150 is located between the second frame 600 and the second partition structure 700. The second busbar 40 can be disposed between the second partition structure 700 and the second frame 600.

[0115] In this way, the second frame 600 and the second partition structure 700 can limit and protect the second busbar 40, prevent the second busbar 40 from shifting along the third direction on the second support part 150, further improve the structural stability and reliability of the busbar bracket 10, ensure the accurate installation position of the second busbar 40 in the battery pack, and thus guarantee the electrical connection performance of the battery pack.

[0116] In some embodiments, the second frame 600 may be made of the same material as the base 100 of the first frame 300, and the first frame 300 and the second frame 600 may be an integral injection-molded structure.

[0117] In some embodiments, the second partition structure 700 may be a plate-like structure. The second partition structure 700 may include a groove with multiple reinforcing members disposed therein to improve the structural strength of the second partition structure 700, thereby improving the structural strength of the busbar support 10.

[0118] In some embodiments, there may be multiple second partition structures 700, which can be arranged at intervals along a second direction so that they can be arranged from one end of the base 100 to the other end along the second direction. The first partition structure 400 and the second partition structure 700 can be provided in a one-to-one correspondence.

[0119] refer to Figure 2 and Figure 3 In some embodiments, the busbar support 10 may further include a third limiting member 620, which is disposed on the surface of the second frame 600 facing the second partition structure 700, and is used to restrict the movement of the second branch 41 along the first direction.

[0120] In some embodiments, the third limiting member 620 may be designed as a stop, a baffle, or a resilient buckle 721, the specific shape of which is determined according to the shape of the second busbar 40 and the installation requirements. For example, the third limiting member 620 may be a stop.

[0121] In this way, the setting of the third limiting member 620 further enhances the fixing effect of the second busbar 40, prevents the second busbar 40 from shifting along the first direction on the second bearing part 150, avoids problems such as poor electrical connection caused by inaccurate position of the second busbar 40, and improves the stability and safety of the battery pack.

[0122] refer to Figure 1 and Figure 2 In some embodiments, the third limiting member 620 can be a triangular stop. The third limiting member 620 has a guide surface 621. One end of the guide surface 621 is connected to the second frame 600, and the other end extends downward toward the second support portion 150 away from the second frame 600.

[0123] The design of this guide surface 621 not only restricts the movement of the second branch 41 along the first direction, but also provides guidance for the installation of the second busbar 40, enabling the second busbar 40 to be installed more accurately and smoothly onto the second support part 150. This improves the installation efficiency and accuracy of the second busbar 40, reduces the assembly difficulty, and also facilitates subsequent maintenance and replacement.

[0124] refer to Figure 1 and Figure 2 In some embodiments, the second border 600 may include a plurality of first reinforcing ribs 610.

[0125] The first reinforcing rib 610 enhances the structural strength of the second frame 600 and improves the overall stability of the busbar bracket 10. During the use of the battery pack, the second frame 600 needs to withstand certain external forces. The first reinforcing rib 610 can effectively disperse these external forces, preventing the second frame 600 from deforming or being damaged, thereby extending the service life of the busbar bracket 10 and ensuring the long-term stable operation of the battery pack.

[0126] In some embodiments, a plurality of first reinforcing ribs 610 can be arranged in a crisscross pattern along the second direction and the third direction to further improve the structural strength of the second frame 600.

[0127] refer to Figure 1 and Figure 2In some embodiments, a first interval 420 along a third direction is provided between the first partition structure 400 and the second partition structure 700. There are multiple first partition structures 400, and these multiple first partition structures 400 are arranged at intervals along a second direction, with a second interval 430 formed between adjacent first partition structures 400. There are multiple second partition structures 700, and each second partition structure 700 is correspondingly arranged to one of the first partition structures 400, with a third interval 710 between adjacent second partition structures 700.

[0128] The first interval 420, the second interval 430 and the third interval 710 are interconnected and form a wire groove 720 for accommodating wire harnesses.

[0129] This structural design cleverly utilizes the space of the busbar bracket 10 to provide a dedicated channel for the wiring harness, allowing the wiring harness to be neatly arranged inside the busbar bracket 10. This avoids interference between the wiring harness and other components such as the first busbar 30, the second busbar 40, and the tab 22, improving the neatness and aesthetics of the battery pack interior. It also facilitates the management and maintenance of the wiring harness and reduces the risk of short circuits and other malfunctions caused by messy wiring harnesses.

[0130] refer to Figure 1 and Figure 2 In some embodiments, the busbar bracket 10 may further include a snap fastener 721. The snap fastener 721 is disposed on the first surface 110 of the base 100 and within the wire groove 720. The snap fastener 721 is used to secure the wire harness within the wire groove 720 and at least to restrict the movement of the wire harness along a first direction.

[0131] In this way, by setting the clip 721, the addition of the clip 721 further enhances the fixing effect of the wire harness, prevents the wire harness from shifting along the first direction inside the busbar bracket 10, avoids the wire harness from contacting or rubbing against other components due to loosening, thereby improving the reliability of the wire harness and ensuring the stable and reliable electrical connection of the battery pack.

[0132] In some embodiments, the wire harness can also extend from the area near the edge of the base 100 to the wire groove 720 between the first stop structure and the second partition structure 700 via a second interval 430 or a third interval 710.

[0133] In some embodiments, the buckle 721 can also be disposed in other areas of the base 100 other than the area between the first partition structure 400 and the second partition structure 700, so as to limit the wiring harness at other positions on the base 100 and improve the installation stability of the wiring harness on the busbar bracket 10.

[0134] refer to Figure 2 and Figure 3In some embodiments, the busbar support 10 may further include a support structure 800 disposed on the side of the base 100 facing away from the first bearing portion 130 along a third direction. The support structure 800 extends relative to the base 100 facing away from the second surface 120 and is used to cover the surface of the cell assembly 20 perpendicular to the third direction, which is perpendicular to both the second and first directions.

[0135] In this way, when the battery pack is installed in the electrical equipment, one surface of the cell assembly 20 along a third direction can face upwards. The support structure 800 can partially cover the upward-facing surface of the cell assembly 20. The support structure 800 can protect the cell assembly 20 from damage caused by external impacts or pressure during use. At the same time, it can also provide a certain support force for the cell assembly 20, ensuring the stability of the cell assembly 20 in the battery pack, and further improving the overall performance and reliability of the battery pack.

[0136] In some embodiments, the support structure 800 can be made of high-strength plastic, and the support structure 800 can be integrally injection molded with the base 100 so that the support structure 800 and the base 100 form an integral molded structure.

[0137] refer to Figure 2 and Figure 3 In some embodiments, the busbar support 10 may further include a second reinforcing rib 810, which may be disposed on the surface of the support structure 800 facing away from the second bearing portion 150 in a third direction.

[0138] The addition of the second reinforcing rib 810 enhances the structural strength of the support structure 800, improving its load-bearing capacity and resistance to deformation. During the use of the battery pack, the support structure 800 needs to withstand certain external forces and the pressure of the cell assembly 20. The second reinforcing rib 810 can effectively disperse these external forces, preventing the support structure 800 from deforming or being damaged, thereby extending the service life of the support structure 800, ensuring the safety and stability of the cell assembly 20, and further improving the overall performance of the battery pack.

[0139] refer to Figure 2 and Figure 3 In some embodiments, the support structure 800 may further include a connecting structure 820, which can be used to fix the second busbar 40 to the support structure 800, thereby improving the connection stability between the second busbar 40 and the busbar bracket 10. Furthermore, the connecting structure 820 can also be used to electrically connect the second busbars 40 on multiple battery packs, or to electrically connect the second busbar 40 to external electronic devices.

[0140] In some embodiments, the connection structure 820 can be a metal nut embedded in the support structure 800, and the second busbar 40 can be locked to the support structure 800 by the cooperation of the metal screw and the metal nut. It can also lock the connection terminal of the external electronic device to the second busbar 40 to the support structure 800.

[0141] refer to Figure 4 and Figure 5 This application embodiment also provides a battery pack, which may include a cell assembly 20, a first busbar 30, and the aforementioned busbar support 10. The cell assembly 20 may include a cell 21 and a tab 22. The first busbar 30 may include a plurality of first branches 31, the first branches 31 being disposed on a first support portion 130, and the tab 22 passing through a first through hole 140 via a second surface 120 of the busbar support 10 and electrically connected to the first branches 31.

[0142] By adopting the aforementioned busbar bracket 10, the battery pack achieves advantages such as stable installation of the first busbar 30, smooth wiring of the tabs 22, and effective management of the wiring harness. This design makes the internal structure of the battery pack more compact and reasonable, improves the assembly efficiency and reliability of the battery pack, facilitates the maintenance and replacement of the battery pack, extends the service life of the battery pack, and meets the high performance requirements of electrical equipment.

[0143] refer to Figure 4 and Figure 5 This application also provides an electrical device, which may include the battery pack described above.

[0144] By using the aforementioned battery pack, the assembly efficiency of electrical equipment can be improved, as well as the reliability and safety of the equipment during use.

[0145] In some embodiments, the electrical equipment can be a vehicle or an energy storage device. The vehicle can be a new energy vehicle, such as a pure electric vehicle (PEV / BEV), a range-extended electric vehicle (REEV), a hybrid electric vehicle (HEV), or a fuel cell electric vehicle. The vehicle can also be any vehicle with a battery.

[0146] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0147] It should be noted that phrases such as "in specific implementations," "in some embodiments," "in this embodiment," and "exemplarily" in the specification indicate that the described embodiments may include specific features, structures, or characteristics, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0148] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0149] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0150] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0151] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A busbar support (10), characterized in that, Includes base (100); The base (100) includes a first surface (110) and a second surface (120) opposite each other in a first direction. The base (100) includes a plurality of first support portions (130) spaced apart in a second direction. The surface of the first support portion (130) facing the first surface (110) is used to support the first branch (31) of the first busbar (30). Multiple first guide structures (200) are disposed on the second surface (120), each first guide structure (200) is correspondingly disposed with a first support part (130), and a first guide groove (210) is formed between two adjacent first guide structures (200); The bottom of the first guide groove (210) is provided with a first through hole (140) connecting the first surface (110) and the second surface (120). The first through hole (140) is used to allow the tab (22) to pass through. The first through hole (140) is located between two adjacent first support portions (130).

2. The busbar support (10) according to claim 1, characterized in that, Also includes: A first frame (300) is disposed on the edge of the base (100) along a third direction, the third direction being perpendicular to the second direction and the first direction; The first partition structure (400) is arranged at intervals with the first frame (300) along the third direction, and the first support part (130) is located between the first frame (300) and the first partition structure (400).

3. The busbar support (10) according to claim 2, characterized in that, It also includes a first limiting member (410); The first limiting member (410) is disposed on the surface of the first partition structure (400) facing the first frame (300), and the first limiting member (410) is used to restrict the first support (31) from moving along the first direction.

4. The busbar support (10) according to claim 2, characterized in that, It also includes a second limiting element (131); The second limiting member (131) is disposed on the edge of the first bearing part (130) along the second direction, and the second limiting member (131) is used to restrict the first busbar (30) from moving along the second direction.

5. The busbar support (10) according to claim 1, characterized in that, The surface of the first guide structure (200) facing away from the second surface (120) is an arc-shaped surface, so that the sidewall of the first guide groove (210) is an arc-shaped surface.

6. The busbar support (10) according to claim 2, characterized in that, The base (100) further includes a plurality of second support portions (150) spaced apart along the second direction. The surface of the second support portion (150) facing the first surface (110) is used to support the second branch (41) of the second busbar (40). The first support portion (130) and the second support portion (150) are spaced apart along the third direction. Multiple second guide structures (500) are disposed on the second surface (120), each second guide structure (500) is disposed corresponding to a second bearing part (150), and a second guide groove (510) is formed between two adjacent second guide structures (500); The bottom of the second guide groove (510) is provided with a second through hole (160) that connects the first surface (110) and the second surface (120). The second through hole (160) is used to allow the tab (22) to pass through. The second through hole (160) is located between two adjacent second support portions (150).

7. The busbar support (10) according to claim 6, characterized in that, Also includes: The second frame (600) is disposed on the third-direction edge of the base (100), and the second frame (600) is disposed opposite to the first frame (300); The second partition structure (700) is arranged at a distance from the first partition structure (400) along the third direction, and the second partition structure (700) is located at the end of the second support portion (150) facing the first partition structure (400), and the second support portion (150) is located between the second frame (600) and the second partition structure (700).

8. The busbar support (10) according to claim 7, characterized in that, It also includes a third limiting element (620); The third limiting member (620) is disposed on the surface of the second frame (600) facing the second partition structure (700), and the third limiting member (620) is used to restrict the movement of the second branch (41) along the first direction.

9. The busbar support (10) according to claim 7, characterized in that, The surface of the second guide structure (500) facing away from the second surface (120) is an arc-shaped surface, so that the sidewall of the first guide groove (210) is an arc-shaped surface.

10. The busbar support (10) according to claim 8, characterized in that, The third limiting member (620) has a guide surface (621), one end of which is connected to the second frame (600), and the other end extends downward toward the second support part (150) away from the second frame (600).

11. The busbar support (10) according to claim 8, characterized in that, The second frame (600) includes a plurality of first reinforcing ribs (610).

12. The busbar support (10) according to claim 8, characterized in that, The first partition structure (400) and the second partition structure (700) have a first interval (420) along the third direction; The first partition structure (400) has a plurality of them, and the plurality of first partition structures (400) are arranged at intervals along the second direction, and a second interval (430) is formed between two adjacent first partition structures (400); The second partition structure (700) has multiple components, and the second partition structure (700) is arranged in a one-to-one correspondence with the first partition structure (400). There is a third interval (710) between two adjacent second partition structures (700). The first interval (420), the second interval (430) and the third interval (710) are interconnected and form a wire groove (720) for accommodating the wire harness.

13. The busbar support (10) according to claim 12, characterized in that, It also includes a snap fastener (721); The buckle (721) is disposed on the first surface (110) of the base (100) and disposed in the wire groove (720). The buckle (721) is used to engage the wire harness in the wire groove (720) and at least to restrict the movement of the wire harness along the first direction.

14. The busbar support (10) according to claim 6, characterized in that, It also includes a support structure (800) along a third direction, the support structure (800) being disposed on the side of the base (100) facing away from the first bearing part (130); The support structure (800) extends away from the second surface (120) relative to the base (100), and the support structure (800) is used to cover the surface of the cell assembly (20) perpendicular to the third direction.

15. The busbar support (10) according to claim 14, characterized in that, It also includes a second reinforcing rib (810) disposed on the surface of the support structure (800) facing away from the second bearing portion (150).

16. A battery pack, characterized in that, It includes a cell assembly (20), a first busbar (30), and a busbar support (10) as claimed in any one of claims 1 to 15; The battery cell assembly (20) includes a battery cell (21) and a tab (22); The first busbar (30) includes a plurality of first branches (31), the first branches (31) are disposed on the first support portion (130), and the electrode (22) passes through the first through hole (140) through the second side (120) of the busbar bracket (10) and is electrically connected to the first branch (31).

17. An electrical appliance, characterized in that, Includes the battery pack as described in claim 16.

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