Battery pack and method of assembling a battery pack

Abstract

This invention relates to the field of battery technology, and more particularly to a battery pack and a method for assembling the battery pack. The battery pack includes a battery array and a busbar bracket. The battery array includes multiple batteries arranged along a first direction. Terminal assemblies are disposed on the surface of each battery perpendicular to the first direction. The busbar bracket is disposed on the surface of the battery parallel to the first direction. The busbar bracket includes a body and a protective portion. The body is used to mount the busbar, and the protective portion is connected to one side of the body. The protective portion is located on the side of the terminal assembly facing away from the battery along the first direction, providing protection for the terminal assembly. Through this design, the present invention can simultaneously fix the busbar via the busbar bracket and provide protection for the battery's terminal assembly using the protective portion, which is beneficial for improving the stability and reliability of the battery pack.

Description

Technical Field

[0001] This invention relates to the field of battery technology, and in particular to a battery pack and a method for assembling the battery pack. Background Technology

[0002] The welding of the busbar and the terminal assembly of existing battery packs requires precise assembly positioning. This is typically achieved by installing a bracket on the side of the battery for busbar installation, thus ensuring proper positioning between the busbar and the terminal assembly. However, the terminal assembly, being a component mounted on the battery surface, is easily damaged by collisions or pressure from other structures during assembly or use, and existing busbar brackets fail to provide protection for the terminal assembly. Summary of the Invention

[0003] A primary objective of this invention is to overcome at least one of the deficiencies of the prior art and provide a battery pack with better stability and reliability.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] According to one aspect of the present invention, a battery pack is provided, comprising a battery array and a busbar support. The battery array includes a plurality of batteries arranged along a first direction. A terminal post assembly is disposed on a surface of the battery perpendicular to the first direction. The busbar support is disposed on a surface of the battery parallel to the first direction. The busbar support includes a body portion and a protective portion. The body portion is used to dispose of the busbar. The protective portion is connected to one side of the body portion and is located on the side of the terminal post assembly facing away from the battery along the first direction, to provide protection for the terminal post assembly.

[0006] As can be seen from the above technical solution, the advantages and positive effects of the battery pack proposed in this invention are as follows:

[0007] The battery pack busbar bracket proposed in this invention includes a body and a protective part. The body is used to mount the busbar, and the protective part is connected to one side of the body. When the busbar bracket is installed on the side of the battery, the protective part is located on the side of the terminal assembly facing away from the battery, thus providing protection for the terminal assembly. Through the above design, this invention can provide protection for the battery's terminal assembly by utilizing the protective part while fixing the busbar, which is beneficial to improving the stability and reliability of the battery pack.

[0008] Another major objective of this invention is to overcome at least one of the defects of the prior art and provide a method for assembling a battery pack.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] According to another aspect of the present invention, a method for assembling a battery pack is provided for assembling a battery with the busbar bracket proposed in the present invention, comprising: fixing the busbar bracket with a tooling; and placing the battery from top to bottom so that the lower end of the battery terminal assembly is engaged between the first protrusion and the body portion.

[0011] As can be seen from the above technical solution, the advantages and positive effects of the battery pack assembly method proposed in this invention are as follows:

[0012] The battery pack assembly method proposed in this invention is easy to install and has high assembly accuracy.

[0013] Another major objective of the present invention is to overcome at least one of the defects of the prior art and provide a method for assembling a battery pack.

[0014] To achieve the above objectives, the present invention adopts the following technical solution:

[0015] According to another aspect of the present invention, a method for assembling a battery pack is provided for assembling batteries with the busbar bracket proposed in the present invention, comprising: fixing the plurality of batteries into the battery array using a tooling; and mounting the busbar to the side of the battery array.

[0016] As can be seen from the above technical solution, the advantages and positive effects of the battery pack assembly method proposed in this invention are as follows:

[0017] The battery pack assembly method proposed in this invention is simple to install and easy to operate, which helps to save labor or achieve automated assembly. Attached Figure Description

[0018] Various objects, features, and advantages of the invention will become more apparent from the following detailed description of preferred embodiments of the invention, taken in conjunction with the accompanying drawings. The drawings are merely illustrative of the invention and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar parts. Wherein:

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the busbar support of a battery pack according to an exemplary embodiment;

[0020] Figure 2 yes Figure 1 A three-dimensional structural diagram of the busbar from another angle is shown;

[0021] Figure 3 yes Figure 1 The top view of the busbar support shown;

[0022] Figure 4This is a three-dimensional structural schematic diagram of the busbar support of a battery pack according to another exemplary embodiment;

[0023] Figure 5 yes Figure 4 A partial top view of the busbar support shown;

[0024] Figure 6 This is a three-dimensional structural schematic diagram of a battery pack according to an exemplary embodiment;

[0025] Figure 7 yes Figure 6 A partial top view of the battery pack is shown;

[0026] Figure 8 yes Figure 6 The diagram shows a partial exploded view of the battery pack.

[0027] Figure 9 yes Figure 8 Partial structural diagram;

[0028] Figure 10 yes Figure 6 A partial three-dimensional structural diagram of the battery pack from another angle is shown;

[0029] Figure 11 This is a three-dimensional structural schematic diagram of a battery pack according to another exemplary embodiment;

[0030] Figure 12 yes Figure 11 A partial top view of the battery pack is shown;

[0031] Figure 13 yes Figure 11 The diagram shows a partial exploded view of the battery pack.

[0032] Figure 14 yes Figure 13 Partial structural diagram;

[0033] Figure 15 This is a partial top view of the battery pack shown according to another exemplary embodiment;

[0034] Figure 16 yes Figure 15 A three-dimensional structural schematic diagram of the busbar support for the battery pack is shown.

[0035] Figure 17 This is a plan view of the busbar support of a battery pack according to another exemplary embodiment;

[0036] Figure 18 This is a partial top view of the battery pack shown according to another exemplary embodiment;

[0037] Figure 19 yes Figure 18 The diagram shows a three-dimensional structural schematic of the busbar support for the battery pack.

[0038] The annotations in the attached figures are explained as follows:

[0039] 100. Busbar support;

[0040] 110. Ontology part;

[0041] 111. Second protrusion;

[0042] 112. Snap-fit ​​protrusion;

[0043] 113. Limit plate;

[0044] 114. Through hole;

[0045] 1141. Hole wall;

[0046] 115. Limiting protrusion;

[0047] 116. Positioning groove;

[0048] 117. Slide rail;

[0049] 120. Protection Department;

[0050] 121. Groove;

[0051] 1211. Tank wall;

[0052] 122. First protrusion;

[0053] 1221. Chamfered structure;

[0054] 123. Reinforcing ribs;

[0055] 124. First elastic element;

[0056] 125. Second elastic element;

[0057] 130. Flexible structure;

[0058] 200. Battery;

[0059] 201. Depression area;

[0060] 210. Pole post assembly;

[0061] 211. Part One;

[0062] 212. Part Two;

[0063] 220. Explosion-proof valve;

[0064] 300. Busbar;

[0065] 310. Main body;

[0066] 320. Connecting part;

[0067] 330. Card slot;

[0068] G. Gap;

[0069] X. First direction;

[0070] Y. Second direction. Detailed Implementation

[0071] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different embodiments without departing from the scope of the present invention, and the description and drawings therein are for illustrative purposes only and not intended to limit the present invention.

[0072] In the following description of different exemplary embodiments of the invention, reference is made to the accompanying drawings, which form part of the invention, and in which different exemplary structures, systems, and steps that can implement various aspects of the invention are shown by way of example. It should be understood that other specific embodiments of the components, structures, exemplary devices, systems, and steps may be used, and structural and functional modifications may be made without departing from the scope of the invention. Furthermore, although the terms “above,” “between,” “within,” etc., may be used in this specification to describe different exemplary features and elements of the invention, these terms are used herein only for convenience, such as the orientation according to the examples shown in the drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of the invention.

[0073] See Figure 1 The illustration shows a three-dimensional structural diagram of the busbar bracket 100 of the battery pack proposed in this invention. In this exemplary embodiment, the battery pack proposed in this invention is described as an example of a battery pack used in automotive batteries. It will be readily understood by those skilled in the art that various modifications, additions, substitutions, deletions, or other changes may be made to the specific embodiments described below in order to apply the relevant designs of this invention to other types of battery packs, and these changes are still within the scope of the principles of the battery pack proposed in this invention.

[0074] See also Figure 6 The diagram shows a representative three-dimensional structural schematic of the battery pack proposed in this invention. Figure 1The diagram shows the three-dimensional structure of the busbar bracket 100 when mounted on the side of the battery 200. In one embodiment of the present invention, the battery pack includes a battery array and a busbar bracket 100. The battery array includes a plurality of batteries 200 arranged along a first direction X. A terminal post assembly is disposed on the surface of each battery 200 perpendicular to the first direction X. The busbar bracket 100 is used to mount the battery 200 on the surface parallel to the first direction X. (See also...) Figure 2 and Figure 3 , Figure 2 The diagram shows a representative three-dimensional structural schematic of the busbar support 100, which embodies the principles of the present invention, from another angle. Figure 2 The diagram shows a top view of the busbar support 100, which embodies the principles of the present invention. The structure, connection method, and functional relationship of the main components of the battery pack proposed in this invention will be described in detail below with reference to the above-mentioned drawings.

[0075] like Figures 1 to 3 As shown, in one embodiment of the present invention, the busbar support 100 includes a body portion 110 and a protective portion 120. Specifically, the body portion 110 is used to mount the busbar 300. The protective portion 120 is connected to one side of the body portion 110. Accordingly, see reference to... Figures 6 to 9 When the busbar bracket 100 is mounted on the side of the battery 200, the protection part 120 is located on the side of the terminal assembly 210 facing away from the battery 200 along the first direction X, to provide protection for the terminal assembly 210. Through this design, the present invention can provide protection for the terminal assembly 210 of the battery 200 by utilizing the protection part 120 while fixing the busbar 300, which is beneficial to improving the stability and reliability of the battery pack.

[0076] like Figure 7 and Figure 8 As shown, in one embodiment of the present invention, the surface of the battery 200 perpendicular to the first direction X is designated as the first surface. Based on this, the protective portion 120 of the busbar support 100 is located between two opposing first surfaces of two adjacent batteries 200. Through this structural design, the protective portion 120 can provide protection for the side of the terminal assembly 210 of one battery 200 facing the other battery 200.

[0077] like Figure 7As shown, in one embodiment of the present invention, the terminal assembly 210 has a first portion 211 and a second portion 212. Specifically, the first portion 211 is disposed on the surface of the battery 200 perpendicular to the first direction X, and the first portion 211 is used to connect to the tab of the battery 200. The second portion 212 is connected to the first portion 211 and extends along the first direction X, and is used to connect to the busbar 300. Based on this, the protective portion 120 of the busbar support 100 can be located on the side of the second portion 212 facing away from the battery 200 along the first direction X to provide protection for the second portion 212. In some embodiments, the protective portion 120 can also be located on the side of the first portion 211 facing away from the battery 200 along the first direction X, and is not limited to this embodiment.

[0078] like Figure 7 and 8 In one embodiment of the present invention, a recessed region 201 is formed on the surface of the battery array parallel to the first direction X. The recessed region 201 is located between two adjacent batteries 200, and the terminal assembly 210 of one battery 200 is located in the recessed region 201. Based on this, a protective part 120 can be accommodated in the recessed region 201 and located between the terminal assembly 210 of one battery 200 and another adjacent battery 200.

[0079] like Figures 6 to 9 As shown, in one embodiment of the present invention, the battery array may include at least three batteries 200. Based on this, each busbar bracket 100 may be used to mount one busbar 300, and each busbar bracket 100 may include two protective portions 120, which are spaced apart along a first X-direction. Accordingly, the two protective portions 120 are respectively accommodated in two adjacent recessed areas 201. Through the above design, the present invention can simultaneously provide protection for the terminal post assemblies 210 of two batteries 200 using a single busbar bracket 100.

[0080] like Figures 11 to 14 As shown, in one embodiment of the present invention, the battery array may include a plurality of batteries 200, and the sides of the battery array are formed with a plurality of recessed areas 201, one fewer than the number of batteries 200. Based on this, Figure 11 Taking a battery pack with a busbar bracket 100 on one side as an example, the busbar bracket 100 includes a main body 110 and multiple protective parts 120. The busbar bracket 100 can be used to install multiple busbars 300, and the number of protective parts 120 is the same as the number of recessed areas 201. The multiple protective parts 120 are arranged at intervals along a first direction, and the multiple protective parts 120 are respectively accommodated in multiple recessed areas 201, thereby using the busbar bracket 100 to simultaneously provide protection for the terminal post assemblies 210 of multiple batteries 200. In addition, taking... Figure 6Taking the battery pack shown as an example, which has multiple busbar brackets 100 on one side, each busbar bracket 100 includes a body part 110 and two protective parts 120. Accordingly, the multiple protective parts 120 are respectively accommodated in multiple recessed areas 201, so that one busbar bracket 100 can simultaneously provide protection for the terminal post assemblies 210 of two batteries 200.

[0081] See also Figures 6 to 9 In one embodiment of the present invention, when the busbar bracket 100 is installed on the side of the battery pack, there is a gap G between the protective part 120 and the battery 200 on the side facing away from the terminal assembly 210. Through this design, the present invention can facilitate the assembly of the busbar bracket 100 and the battery pack by utilizing this gap G, and can absorb tolerances, making it easy for the busbar bracket 100 to be directly installed on the side of the battery pack, saving time and effort, and achieving high assembly efficiency.

[0082] like Figures 11 to 13 As shown, in one embodiment of the present invention, the battery pack has at least four recessed areas 201 on one side, and at least one busbar bracket 100 is provided on one side of the battery pack. Based on this, the body portion 110 is used to provide at least two busbars 300, and the busbar bracket 100 includes at least four protective portions 120, and at least four protective portions 129 are respectively accommodated in at least four recessed areas 201.

[0083] like Figures 6 to 8 As shown, in one embodiment of the present invention, the battery pack has at least four recessed areas 201 on one side, and at least two busbar brackets 100 are provided on one side of the battery pack. For each busbar bracket 100, its body part 110 is used to provide a busbar 300, and there are two protective parts 120, which are respectively accommodated in two adjacent recessed areas.

[0084] like Figure 7 or Figure 12 As shown, in one embodiment of the invention, at least a portion of the recessed region 201 may be generally arc-shaped. Based on this, the protective portion 120 of the busbar support 100, on the side facing away from the pole assembly 210, may be generally arc-shaped, corresponding to the shape of a portion of the recessed region 201.

[0085] like Figure 2As shown, in one embodiment of the present invention, a reinforcing rib 123 may be provided on the surface of the protective portion 120 facing away from the pole post assembly 210. The side of the reinforcing rib 123 facing away from the pole post assembly 210 is arc-shaped, corresponding to the shape of a portion of the recessed area 201. Through the above design, the present invention can strengthen the structural strength of the protective portion 120 while arranging it. In addition, when the protective portion 120 adopts a structure with, for example, a groove 121, the provision of the reinforcing rib 123 can prevent the protective portion 120 from being designed as a solid structure, thereby strengthening the structural strength while reducing the weight of the busbar support 100.

[0086] like Figures 1 to 3 As shown, in one embodiment of the present invention, the busbar bracket 100 may be provided with a groove 121. The groove 121 may be formed jointly by the body portion 110 and the protective portion 120. The groove 121 is used to accommodate at least a portion of the structure of the terminal assembly 210 of the battery 200 (e.g., the second part 212 of the terminal assembly 210) and the portion of the busbar 300 used to connect with the terminal assembly 210 (e.g., the connecting portion 320). The size of the groove 121 is larger than the size of the terminal assembly 210 (the portion accommodated by the groove 121). Through the above design, the present invention enables the protective portion 120 to facilitate the passage and accommodation of the terminal assembly 210 through the groove 121, which is beneficial for the accommodation and avoidance of the terminal assembly 210 (e.g., but not limited to the L-shaped terminal assembly 210 shown in the figure), further improving the protection effect of the terminal assembly 210.

[0087] like Figure 7 or Figure 12 As shown, in one embodiment of the present invention, the opening of the groove 121 can be opened along the first direction X toward the pole assembly 210 so that the pole assembly 210 can enter the groove 121 through the opening.

[0088] See Figure 15 and Figure 16 , Figure 15 A partial top view of a battery pack that embodies the principles of the present invention is shown in another exemplary embodiment. Figure 16 China representatively shows Figure 15 The diagram shows a three-dimensional structural schematic of the busbar support for the battery pack.

[0089] like Figure 15 and Figure 16As shown, in one embodiment of the present invention, the groove 121 has a first groove wall and a second groove wall spaced apart along a second direction Y, which is perpendicular to the first direction X. The first groove wall is located on the surface of the body portion 110 facing the battery 200, and the second groove wall is located on the protective portion 120. Based on this, the second groove wall is provided with a first elastic member 124 extending toward the first groove wall, and the terminal assembly 210 is sandwiched between the first elastic member 124 and the first groove wall. The first elastic member 124 provides an elastic preload force to the terminal assembly 210. Through the above design, the present invention enables a more secure fixation between the busbar bracket 100 and the terminal assembly 210, facilitates installation and positioning, and achieves higher assembly efficiency.

[0090] like Figure 16 As shown, based on the design of the groove wall of the groove 121, a first elastic member 124 is provided. In one embodiment of the present invention, the upper and lower sides of the first elastic member 124 may be provided with guide structures, such as the inclined structure shown in the figure. The guide structure is used to guide the terminal assembly 210 when the battery pack and the busbar bracket 100 move up and down relative to each other and the terminal assembly 210 enters the groove 121. Through the above structural design, the present invention can further facilitate installation and improve assembly efficiency. In addition, in some embodiments, depending on different assembly needs, the first elastic member 124 may only be provided with guide structures on its upper or lower sides, and is not limited to this embodiment.

[0091] like Figure 16 As shown, based on the design of the groove wall of the groove 121 being provided with a first elastic element 124, in one embodiment of the present invention, the second groove wall may be provided with at least two first elastic elements 124, and these first elastic elements 124 are arranged at intervals. Through the above design, the present invention can further improve assembly stability.

[0092] Based on the design of the groove wall of the groove 121 having a first elastic element 124, in one embodiment of the present invention, the first elastic element 124 can be a spring or a sheet.

[0093] like Figure 16 As shown, the groove wall of the groove 121 is provided with a first elastic element 124. In one embodiment of the present invention, the first elastic element 124 and the protective part 120 can be an integral structure.

[0094] Based on the design of the groove wall of the groove 121 having a first elastic element 124, in one embodiment of the present invention, the pole post assembly 210 may be provided with a limiting element, which is used to limit the position of the first elastic element 124. Through the above design, the present invention can further improve the accuracy and stability of assembly.

[0095] Based on the design of the groove wall of the groove 121 having a first elastic element 124, in one embodiment of the present invention, an insulating adhesive layer is provided on the surface of the pole assembly 210. This insulating adhesive layer can open at the position corresponding to the first elastic element 124 to form a receiving groove, which is used to accommodate the first elastic element 124. Through the above design, the present invention can form a receiving groove for positioning the first elastic element 124 by utilizing the opening design of the insulating adhesive layer when an insulating adhesive layer is provided on the surface of the pole assembly.

[0096] Based on the design of the groove wall of the groove 121 having a first elastic element 124, in one embodiment of the present invention, the surface of the pole assembly 210 is provided with an insulating adhesive layer, and the insulating adhesive layer is provided with a limiting element, which is used to limit the position of the first elastic element 124. Through the above design, the present invention can further improve the accuracy and stability of assembly.

[0097] See also Figure 19 The structure shown roughly reflects Figure 16 The busbar bracket 100 is shown in another perspective. In one embodiment of the invention, the side surface of the main body 110 facing the protective part (i.e., the first groove wall of the groove 121) may be provided with a positioning groove 116. The positioning groove 116 is used to accommodate and secure a portion of the terminal assembly (e.g., the second connecting part 212). Accordingly, the assembly process of the busbar bracket 100 and the battery pack 200 may include: assembling the busbar bracket 100 to the side of the battery pack 200 in the vertical direction, with the terminal assembly 210 entering the groove 121 during the assembly process, and then pushing the busbar bracket 100 toward the battery pack 200 so that a portion of the terminal assembly 210 is engaged in the positioning groove 116.

[0098] See Figure 17 , Figure 17 The diagram shows a schematic plan view of a busbar support in another exemplary embodiment of a battery pack that embodies the principles of the present invention.

[0099] like Figure 17 As shown, in one embodiment of the present invention, the protective part 120 is slidably disposed on the body part 110, and the sliding direction of the protective part 120 can be a first direction X. Through the above design, the present invention is advantageous in absorbing assembly tolerances, facilitating installation, and achieving high assembly efficiency.

[0100] like Figure 17As shown, based on the design that the protective part 120 is slidably disposed on the main body 110, in one embodiment of the present invention, a slide rail 117 may be provided on the side of the main body 110 facing the battery pack 200. The slide rail 117 may specifically be a slide, a groove, a track, etc., thereby allowing the protective part 120 to slide in conjunction with the slide rail 117. Through the above design, the present invention has the advantages of simple structure and ease of implementation.

[0101] See Figure 18 and Figure 19 , Figure 18 A partial top view of a battery pack 200, which embodies the principles of the present invention, is shown in another exemplary embodiment. Figure 19 China representatively shows Figure 18 The diagram shows a three-dimensional structure of the busbar support 100 of the battery pack 200.

[0102] like Figure 18 As shown, in one embodiment of the present invention, the busbar support 100 may further include a flexible structure 130, through which the main body 110 and the protective part 120 are connected. Through the above design, the present invention can utilize the flexible structure 130 to absorb tolerances, facilitate installation, and also utilize the flexible structure 130 to provide a buffering effect on the welded joints of the busbar 300.

[0103] Based on the design of the busbar bracket 100 including the flexible structure 130, in one embodiment of the present invention, the main body 110, the protective part 120, and the flexible structure 130 can be an integral structure. Through the above design, the present invention can further facilitate the processing, production, and assembly of the busbar bracket 100, and is beneficial in reducing the number of parts.

[0104] Based on the design of the busbar bracket 100 including the flexible structure 130, in one embodiment of the present invention, the flexible structure 130 can have a swaying degree of freedom along the first direction X. Through the above design, the present invention can utilize the flexible structure 130 to achieve tolerance absorption of the assembly tolerance of each battery in the battery pack 200, which facilitates the assembly of the busbar bracket 100 and the battery pack 200.

[0105] Based on the design of the busbar bracket 100 including the flexible structure 130, in one embodiment of the present invention, the flexible structure 130 can have a swaying degree of freedom along a second direction Y perpendicular to the first direction X. Through the above design, the present invention can further facilitate the installation of the busbar bracket 100.

[0106] like Figure 19As shown, in one embodiment of the present invention, a second elastic member 125 facing the adjacent battery may be provided on the side of the protective part 120 facing away from the terminal assembly 210 along the first direction X. Through this design, the present invention can utilize the second elastic member 125 to abut against the adjacent battery, thereby satisfying the positioning and fixing requirements when there is a gap between the side of the protective part 120 facing away from the terminal assembly 210 and the adjacent battery, preventing the protective part 120 from shaking in the recessed area 201, and providing expansion space for battery expansion. In some embodiments, the second elastic member 125 may also be provided on the side of the protective part 120 facing the terminal assembly 210, that is, the second elastic member 125 abuts against the surface of the battery to which the terminal assembly 210 belongs, and is not limited to this embodiment.

[0107] like Figure 19 As shown, based on the design of the second elastic member 125 provided in the protection part 120, in one embodiment of the present invention, the second elastic member 125 can be a cantilever structure, and the connecting end of the cantilever structure is connected to the protection part 120, and the free end of the cantilever structure abuts against the adjacent battery.

[0108] like Figure 19 As shown, based on the design of the second elastic member 125 provided in the protective part 120, in one embodiment of the present invention, the second elastic member 125 and the protective part 120 can be an integral structure.

[0109] In one embodiment of the present invention, the protective part 120 can be detachably connected to the main body 110. Through this design, the present invention allows for replacement of the protective part 120 when it is damaged, avoiding the need to replace the entire busbar bracket 100 due to damage to individual protective parts 120, thus saving costs.

[0110] like Figure 4 and Figure 5 As shown, based on the design of the protective part 120 having a groove 121, in one embodiment of the present invention, a first protrusion 122 may be provided at the lower end of the groove wall 1211 facing the main body part 110. This first protrusion 122 is arranged at intervals from the main body part 110 along a second direction Y perpendicular to the first direction X. Accordingly, see reference... Figures 11 to 14 When the busbar bracket 100 is installed on the side of the battery 200, the lower end of the terminal assembly 210 is engaged between the first protrusion 122 and the body portion 110. Through the above design, the present invention can use the first protrusion 122 and the body portion 110 to fix the terminal assembly 210, thereby improving the assembly stability and assembly accuracy of the terminal assembly 210.

[0111] like Figure 4As shown, the groove wall 1211 of the groove 121 is provided with a first protrusion 122. In one embodiment of the present invention, the upper end of the first protrusion 122 facing the body can be provided with a chamfered structure 1221. Through the above design, the present invention can provide a guiding function for the terminal post assembly 210 by utilizing the chamfered structure 1221 of the first protrusion 122 during the assembly process of the busbar bracket 100 and the battery pack, for example, during the process of the battery pack being installed into the busbar bracket 100 from top to bottom, while using the chamfered structure 1221 to avoid damage to the terminal post assembly 210.

[0112] Based on the design of the groove wall 1211 of the groove 121 having a first protrusion 122, in one embodiment of the present invention, the lower end of the first protrusion 122 can be connected to the body portion 110 via an abutment portion (not shown in the drawings). Accordingly, when the busbar bracket 100 is installed on the side of the battery 200, the bottom surface of the terminal assembly 210 can abut against the top surface of the abutment portion. Through the above design, the present invention can use the abutment portion (i.e., the connection between the body portion 110 and the first protrusion 122) to achieve positioning of the terminal assembly 210, and the terminal assembly 210 will be misaligned during assembly.

[0113] like Figure 4 and Figure 5 As shown, based on the design of the groove wall 1211 of the groove 121 having a first protrusion 122, in one embodiment of the present invention, the main body 110 may be provided with a second protrusion 111 extending toward the first protrusion 122. The first protrusion 122 and the second protrusion 111 are arranged at intervals. Accordingly, see reference... Figures 11 to 14 When the busbar bracket 100 is installed on the side of the battery 200, the lower end of the terminal assembly 210 is engaged between the first protrusion 122 and the second protrusion 111. Through the above design, the present invention can use the cooperation of the first protrusion 122 and the second protrusion 111 to fix the terminal assembly 210, further improving the assembly stability and assembly accuracy of the terminal assembly 210.

[0114] Based on the design of the busbar bracket 100 with a groove 121, in one embodiment of the present invention, the main body 110 can be generally frame-shaped and have an opening. A limiting plate 113 is provided in the opening, which occupies part of the space of the opening. The part of the opening not occupied by the limiting plate 113 forms a through hole 114, which communicates with the groove 121. In this case, when the busbar 300 is disposed on the busbar bracket 100, the main body 310 of the busbar 300 is located on the side of the limiting plate 113 facing away from the protective part 120. The connecting part 320 of the busbar 300 passes through the through hole 114 and connects to the pole assembly 210 accommodated in the groove 121.

[0115] like Figure 4 and Figure 5 As shown, in one embodiment of the present invention, the body portion 110 may be provided with a snap-fit ​​protrusion 112, through which the body portion 110 snaps the busbar 300. For example, the snap-fit ​​protrusions 112 may be provided at intervals on the side of the limiting plate 113 of the body portion 110 facing away from the battery 200. Accordingly, when the busbar 300 is installed on the busbar bracket 100, the main body 310 of the busbar 300 is limited between the limiting plate 113 and the snap-fit ​​protrusions 112. Through the above design, the present invention can use the snap-fit ​​protrusions 112 to fix the busbar 300, improving the assembly stability and assembly accuracy of the busbar 300. In some embodiments, the snap-fit ​​protrusions 112 may also be provided at other positions of the body portion 110, and are not limited to this embodiment.

[0116] See also 12 to Figure 14 Based on the design of the snap-fit ​​protrusion 112 provided in the body portion 110, in one embodiment of the present invention, the busbar 300 (e.g., but not limited to the body portion 310) may be provided with a slot 339. Accordingly, the snap-fit ​​protrusion 112 of the body portion 110 can engage with the slot 339. Through the above design, the present invention can further improve the assembly stability and assembly accuracy of the busbar 300.

[0117] like Figure 1 and Figure 2 In one embodiment of the present invention, the main body 110 may have a frame structure and an opening, in which a limiting plate 113 is disposed. The limiting plate 113 occupies a portion of the space of the opening, and the portion of the opening not occupied by the limiting plate 113 forms a through hole 114. Accordingly, see reference. Figures 6 to 9 When the busbar 300 is installed on the busbar bracket 100, the main body 310 of the busbar 300 is located on the side of the limiting plate 113 facing away from the protective part 120, and the connecting part 320 of the busbar 300 passes through the through hole 114 and is located on the side of the main body 110 where the protective part 120 is provided, thereby enabling the connection between the connecting part 320 and the pole assembly 210. Through the above design, the present invention simplifies the structural complexity, provides effective insulation function, and can prevent weld spatter during the welding process of the busbar 300.

[0118] like Figure 1 As shown, based on the design of the body portion 110 having a through hole 114 through which the connecting portion 320 of the busbar 300 passes, in one embodiment of the present invention, the hole wall 1141 of the through hole 114 may be provided with a limiting protrusion 115, which is used to limit the connecting portion 320 of the busbar 300. (See also...) Figures 6 to 9When the busbar 300 is mounted on the busbar bracket 100, the connecting portion 320 of the busbar 300 is limited to the side of the limiting protrusion 115 facing the battery 200. Through the above design, the present invention can use the limiting protrusion 115 to ensure the fixation of the busbar 300, and the structure is simple, easy to install, and easy to process.

[0119] See also Figure 10 , Figure 10 The diagram representatively illustrates a partial three-dimensional structure of the busbar bracket 100 when it is mounted on the side of the battery 200 from another angle. The explosion-proof valve 220 of the battery 200 is located at the bottom and / or top of one side surface of the battery 200 along the first direction X (considering that the explosion-proof valve 220 is located diagonally on this side surface, for example, at the "upper left corner" and "lower right corner" of this side surface). Based on this, in one embodiment of the invention, when the busbar bracket 100 is mounted on the side of the battery 200, a portion of the structure of the busbar bracket 100 may be located on the side of the explosion-proof valve 220 along the first direction X, for example... Figure 10 The main body 110 shown extends downward to one side of the explosion-proof valve 220 along the first direction X, that is, on the surface of the battery 200 along the first direction X, the orthographic projection of the busbar bracket 100 at least partially overlaps with the orthographic projection of the explosion-proof valve 220. In some embodiments, the protective portion 120 of the busbar bracket 100 may also be appropriately extended (along the height direction) so that it can shield the explosion-proof valve 220 of the battery 200 when it is assembled into the battery pack. With the above design, the present invention can utilize the busbar bracket 100 to shield the heat flow ejected when the explosion-proof valve 220 is depressurized, thereby improving the safety performance between adjacent batteries 200.

[0120] See Figure 4 and Figure 5 , Figure 4 The diagram shows a three-dimensional structural schematic of the busbar support 100 of a battery pack in another embodiment that embodies the principles of the present invention. Figure 5 China representatively shows Figure 4 A partial top view of the busbar support 100 is shown.

[0121] like Figure 4 and Figure 5 As shown, in one embodiment of the present invention, the busbar support 100 may include a body portion 110 and a plurality of protective portions 120. Accordingly, see reference to... Figures 11 to 14The busbar bracket 100 can be disposed on the side of the battery pack, and the busbar bracket 100 can support multiple busbars 300 through a single body portion 110, and can provide protection for the terminal post assemblies 210 of multiple batteries 200 through multiple protective portions 120. Through the above design, the present invention can reduce the number of busbar brackets 100 when the battery pack includes a battery pack composed of multiple batteries, simplify the assembly process of the busbar bracket 100 and the battery pack, and improve assembly efficiency.

[0122] It should be noted that, Figure 4 and Figure 5 The illustrated implementation is similar to Figures 1 to 3 Compared to the illustrated embodiment, the only difference lies in the number of busbars 300 that can be installed on the main body 110 of the busbar bracket 100, specifically one versus multiple. Based on this, the busbar bracket 100 for the battery pack proposed in this invention... Figures 1 to 3 The illustrated embodiment is generally in the form of a single unit component, meaning each such unit component can accommodate a busbar 300 for connection to one or two terminal post assemblies 210 of the battery 200, while one or two protective parts 120 provide protection for each terminal post assembly 210. Correspondingly, the busbar support 100 of the battery pack proposed in this invention... Figure 4 and Figure 5 The illustrated embodiment is generally in the form of an integral component, which can also be understood as an integral structure formed by connecting the body parts 110 of multiple unit components mentioned above together. That is, such an integral component can provide multiple busbars 300 for multiple busbars 300 to be connected to the terminal assemblies 210 of multiple batteries 200 respectively. Specifically, each busbar 300 can be connected to the terminal assemblies 210 of two adjacent batteries 200 respectively, while multiple protective parts 120 are used to protect the multiple terminal assemblies 210 respectively.

[0123] In addition, for example Figures 1 to 5 Other preferred designs in the illustrated embodiments, such as the dimensional relationship between the groove 121 and the pole post assembly 210, the first protrusion 122 and its related preferred designs, the reinforcing rib 123, the second protrusion 111, the snap-fit ​​protrusion 112, the design of the opening and limiting plate 113 of the body portion 110, the limiting protrusion 115, and the shielding design for the explosion-proof valve 220, can all be implemented in [the following context]. Figures 1 to 5 In any of the embodiments shown, or in various possible embodiments that conform to the design concept of the present invention, regardless of whether they take the form of "unit component" or "integral component".

[0124] It should be noted that the busbar supports shown in the accompanying drawings and described in this specification are merely a few examples among many busbar supports from which the principles of the invention can be applied. It should be clearly understood that the principles of the invention are by no means limited to any detail or component of the busbar supports shown in the accompanying drawings or described in this specification.

[0125] See Figure 6 The diagram illustrates a three-dimensional structural schematic of the battery pack proposed in this invention. In this exemplary embodiment, the battery pack is described using an automotive battery as an example. It will be readily understood by those skilled in the art that various modifications, additions, substitutions, deletions, or other changes may be made to the specific embodiments described below to apply the relevant designs of this invention to other types of battery devices; these changes remain within the scope of the principles of the battery pack proposed in this invention.

[0126] like Figure 6 As shown, in one embodiment of the present invention, the battery pack proposed by the present invention includes a battery 200, a busbar bracket 100, and a busbar 300. (See also...) Figures 7 to 9 , Figure 7 A partial top view of the battery pack is shown in the image. Figure 8 The diagram shows a partial exploded view of the battery pack, specifically showing the three-dimensional structure after the busbar 300 is moved away along the second direction Y by a certain distance. For ease of display, only one battery 200 is shown. Figure 9 China representatively shows Figure 8 The diagram shows a partial structural illustration, specifically illustrating the structure with the battery 200 removed and its terminal assembly 210 retained. The following will, in conjunction with the aforementioned figures, provide a detailed description of the structure, connection method, and functional relationship of the main components of the battery pack proposed in this invention.

[0127] like Figures 6 to 9 As shown, in one embodiment of the present invention, the battery pack proposed by the present invention includes the busbar bracket 100 proposed by the present invention and described in detail in the above embodiments, and the busbar bracket 100 is based on... Figures 1 to 3The busbar bracket 100 shown is used as an example for explanation. Specifically, the battery pack includes a battery column, which includes a plurality of batteries 200 arranged along a first direction X. A recessed area 201 is formed on the side of the battery column between two adjacent batteries 200. The terminal post assembly 210 of one of the batteries 200 is located in the recessed area 201. The side of the battery column has a plurality of recessed areas 201, one fewer than the number of batteries 200. Based on this, a plurality of busbar brackets 100 are provided on one side of the battery column. For each busbar bracket 100, the body part 110 is used to provide one busbar 300, and there are two protective parts 120, which are respectively accommodated in two adjacent recessed areas 201.

[0128] See also Figures 11 to 14 , Figure 11 The diagram shows a three-dimensional structural schematic of a battery pack that embodies the principles of the present invention in another embodiment. Figure 12 A partial top view of the battery pack is shown in the image. Figure 13 The diagram shows a partial exploded view of the battery pack, specifically showing the three-dimensional structure after the busbar 300 is moved away along the second direction Y by a certain distance. For ease of display, only one battery 200 is shown. Figure 14 China representatively shows Figure 12 A partial structural diagram, which specifically shows the structure with the battery 200 removed and its terminal assembly 210 retained.

[0129] like Figures 11 to 14 As shown, in one embodiment of the present invention, the battery pack proposed by the present invention includes the busbar bracket 100 proposed by the present invention and described in detail in the above embodiments, and the busbar bracket 100 is based on... Figure 4 and Figure 5 The busbar bracket 100 shown is used as an example for explanation. Specifically, the main body 110 of the busbar bracket 100 is used to provide a plurality of busbars 300, and the busbar bracket 100 includes a plurality of protective parts 120, which are respectively accommodated in a plurality of recessed areas 201.

[0130] As described above, in various possible embodiments of the battery pack proposed in this invention, the battery pack proposed in this invention may include a battery 200 and a busbar bracket 100 proposed in this invention. The busbar bracket 100 is disposed on the side of the battery 200 and is used to set a busbar 300, which is connected to the terminal assembly 210 of the battery 200.

[0131] It should be noted that the battery packs shown in the accompanying drawings and described in this specification are merely a few examples among many battery packs capable of employing the principles of the present invention. It should be clearly understood that the principles of the present invention are by no means limited to any detail or component of the battery packs shown in the accompanying drawings or described in this specification.

[0132] In summary, the busbar bracket 100 for the battery pack proposed in this invention includes a body portion 110 and a protective portion 120. The body portion 110 is used to mount the busbar 300, and the protective portion 120 is connected to one side of the body portion 110. When the busbar bracket 100 is installed on the side of the battery 200, the protective portion 120 is located on the side of the terminal assembly 210 facing away from the battery 200, thereby providing protection for the terminal assembly 210. Through the above design, this invention can provide protection for the terminal assembly 210 of the battery 200 by using the protective portion 120 while fixing the busbar 300, which is beneficial to improving the stability and reliability of the battery pack.

[0133] Based on the detailed description of the various embodiments of the battery pack proposed in this invention above, several exemplary embodiments of the battery pack assembly method proposed in this invention will be described below.

[0134] For the busbar bracket 100 with a specific groove 121 in the protective part 120 and a first protrusion 122 provided on the groove wall 1211 of the groove 121, the present invention proposes a battery pack assembly method that can be used to assemble the battery 200 and the busbar bracket 100 proposed in the present invention. In one embodiment of the present invention, the assembly method specifically includes:

[0135] Use tooling to fix the busbar bracket 100 in place;

[0136] The battery 200 is inserted from top to bottom so that the lower end of the terminal assembly 210 of the battery 200 is engaged between the first protrusion 122 and the body portion 110.

[0137] Through the above design, the battery pack assembly method proposed in this invention can limit the lower end of the terminal assembly 210 of the battery 200 by the first protrusion 122 during the process of inserting the battery 200 from top to bottom. In particular, when the first protrusion 122 has a chamfered structure 1221, the chamfered structure 1221 can be used to guide the terminal assembly 210, making the installation of the battery 200 more convenient and the assembly accuracy higher.

[0138] Regarding the busbar bracket 100 (i.e., the aforementioned integral component form) capable of housing multiple busbars 300 on the main body 110, the present invention proposes a battery pack assembly method that can be used to assemble the battery 200 with the aforementioned busbar bracket 100. In one embodiment of the present invention, the assembly method specifically includes:

[0139] Multiple batteries 200 are fixed into a battery array using tooling.

[0140] The busbar bracket 100 is inserted into the battery row from top to bottom, with the terminal assembly 210 of the battery 200 at least partially accommodated in the groove 121. Then the busbar bracket 100 is pushed toward the battery row so that part of the terminal assembly 210 is secured in the positioning groove 116.

[0141] Through the above design, the battery pack assembly method proposed in this invention can install the busbar bracket 100 for multiple busbars 300 onto the side of the battery pack at one time, which has high assembly efficiency, is simple to install and easy to operate, and is conducive to saving labor or realizing automated assembly.

[0142] It should be noted that the battery pack assembly methods shown in the accompanying drawings and described in this specification are merely a few examples among many assembly methods capable of employing the principles of the present invention. It should be clearly understood that the principles of the present invention are by no means limited to any detail or step of the battery pack assembly methods shown in the accompanying drawings or described in this specification.

[0143] The foregoing has described and / or illustrated exemplary embodiments of the battery pack and battery pack assembly method proposed by the present invention in detail. However, the embodiments of the present invention are not limited to the specific embodiments described herein; rather, components and / or steps of each embodiment may be used independently and separately from other components and / or steps described herein. Each component and / or step of one embodiment may also be used in combination with other components and / or steps of other embodiments. In describing the elements / components / etc. described and / or illustrated herein, the terms "a," "an," and "the above" are used to indicate the presence of one or more elements / components / etc. The terms "comprising," "including," and "having" are used to indicate an open-ended inclusion and mean that additional elements / components / etc. may exist in addition to the listed elements / components / etc. Furthermore, the terms "first" and "second," etc., in the claims and specification are used only as illustrative marks and are not intended to limit the numerical scope of the subject matter.

[0144] Although the battery pack and battery pack assembly method proposed in this invention have been described according to different specific embodiments, those skilled in the art will recognize that modifications can be made to the implementation of this invention within the spirit and scope of the claims.

Claims

1. A battery pack, characterized in that, The device includes a battery array and a busbar support. The battery array comprises multiple batteries arranged along a first direction. Each battery has a terminal assembly disposed on a surface perpendicular to the first direction. The busbar support is disposed on a surface of the battery array parallel to the first direction. A recessed area is formed on the surface of the battery array parallel to the first direction, located between two adjacent batteries, with the terminal assembly of one battery located within the recessed area. The busbar support includes a body and a protective portion. The body is used to mount the busbar, and the protective portion is connected to one side of the body and accommodates... In the recessed area, and between the terminal assembly of one battery and another adjacent battery, the protective portion is located on the side of the terminal assembly facing away from the battery along the first direction to provide protection for the terminal assembly; the busbar bracket is provided with a groove, the groove being formed by the body portion and the protective portion, the groove being used to accommodate the connection portion of the terminal assembly and the busbar, the size of the groove being larger than the size of the terminal assembly; the opening of the groove is open towards the terminal assembly along the first direction so that the terminal assembly can enter the groove through the opening.

2. The battery pack according to claim 1, characterized in that, The surface of the battery perpendicular to the first direction is the first surface, and the protective part is located between the two first surfaces of two adjacent batteries with opposite orientations.

3. The battery pack according to claim 1, characterized in that, The terminal assembly has a first part and a second part. The first part is disposed on the surface of the battery perpendicular to the first direction and is used to connect to the battery's tab. The second part is connected to the first part and extends along the first direction for connecting to the busbar. The protective part is located at least on the side of the second part facing away from the battery along the first direction to provide protection for the second part.

4. The battery pack according to claim 1, characterized in that, The battery array includes at least three batteries; wherein the busbar bracket is used to set one busbar, the busbar bracket includes two protective portions, the two protective portions are arranged at intervals along the first direction, and the two protective portions are respectively accommodated in two adjacent recessed areas.

5. The battery pack according to claim 1, characterized in that, The battery array includes a plurality of batteries, and the side of the battery array has a plurality of recessed areas, one less than the number of batteries; wherein, the busbar bracket is used to provide a plurality of busbars, and the busbar bracket includes a plurality of protective parts, the same number as the recessed areas, the plurality of protective parts are arranged at intervals along the first direction, and the plurality of protective parts are respectively accommodated in the plurality of recessed areas.

6. The battery pack according to claim 1, characterized in that, There is a gap between the protective part and the battery on the side opposite to the electrode assembly.

7. The battery pack according to claim 1, characterized in that: The battery pack has at least four recessed areas on one side, and at least one busbar bracket is provided on one side of the battery pack. The main body is used to provide at least two busbars, and the busbar bracket includes at least four protective parts, which are respectively accommodated in the at least four recessed areas; or The battery pack has at least four recessed areas on one side, and at least two busbar brackets are provided on one side of the battery pack. For each busbar bracket, the main body is used to provide one busbar, and there are two protective parts, which are respectively accommodated in two adjacent recessed areas.

8. The battery pack according to claim 1, characterized in that, The recessed area is arc-shaped, and the side of the protective part facing away from the pole assembly is arc-shaped, corresponding to the shape of a portion of the recessed area.

9. The battery pack according to claim 8, characterized in that, The protective part has a reinforcing rib on the surface facing away from the pole assembly, and the side of the reinforcing rib facing away from the pole assembly is arc-shaped, corresponding to the shape of a part of the recessed area.

10. The battery pack according to claim 1, characterized in that, The groove has a first groove wall and a second groove wall spaced apart along a second direction, the second direction being perpendicular to the first direction. The first groove wall is located on the surface of the body portion facing the battery, and the second groove wall is located on the protective portion. The second groove wall is provided with a first elastic member extending toward the first groove wall. The electrode assembly is sandwiched between the first elastic member and the first groove wall. The first elastic member is used to provide an elastic preload force to the electrode assembly.

11. The battery pack according to claim 10, characterized in that, The first elastic member is provided with a guide structure on its upper and / or lower sides. The guide structure is used to guide the electrode assembly when the battery pack and the busbar bracket move up and down relative to each other so that the electrode assembly enters the groove.

12. The battery pack according to claim 10, characterized in that, The second groove wall is provided with at least two of the first elastic elements, which are arranged at intervals.

13. The battery pack according to claim 10, characterized in that, The first elastic element is a spring or a sheet.

14. The battery pack according to claim 10, characterized in that, The first elastic element and the protective part are an integral structure.

15. The battery pack according to claim 10, characterized in that, The pole assembly is provided with a limiting member, which is used to limit the position of the first elastic member.

16. The battery pack according to claim 10, characterized in that, An insulating adhesive layer is provided on the surface of the pole assembly. The insulating adhesive layer opens at the position of the first elastic member to form a receiving groove, which is used to receive the first elastic member.

17. The battery pack according to claim 10, characterized in that, An insulating adhesive layer is provided on the surface of the pole assembly, and a limiting member is provided on the insulating adhesive layer to limit the position of the first elastic member.

18. The battery pack according to claim 10, characterized in that, The first groove wall is provided with a positioning groove, which is used to accommodate and secure part of the pole assembly.

19. The battery pack according to claim 1, characterized in that, The protective part is slidably disposed on the main body, and the sliding direction of the protective part is the first direction.

20. The battery pack according to claim 19, characterized in that, The main body is provided with a slide rail on the side facing the battery pack, and the protective part slides in cooperation with the slide rail.

21. The battery pack according to claim 1, characterized in that, The busbar support also includes a flexible structure, through which the main body and the protective part are connected.

22. The battery pack according to claim 21, characterized in that, The main body, the protective part, and the flexible structure are an integral structure.

23. The battery pack according to claim 21, characterized in that: The flexible structure has a degree of freedom of swaying along the first direction; and / or The flexible structure has a swaying degree of freedom along a second direction perpendicular to the first direction.

24. The battery pack according to claim 21, characterized in that: The protective portion has a second elastic element facing the adjacent battery on the side opposite to the electrode assembly; or The protective part is provided with a second elastic element facing the battery where the electrode assembly is located on the side facing the electrode assembly.

25. The battery pack according to claim 24, characterized in that, The second elastic element is a cantilever structure, with the connecting end of the cantilever structure connected to the protective part and the free end of the cantilever structure abutting against the adjacent battery.

26. The battery pack according to claim 24, characterized in that, The second elastic element and the protective part are an integral structure.

27. The battery pack according to claim 1, characterized in that, The protective part is detachably connected to the main body.

28. The battery pack according to claim 1, characterized in that, A first protrusion is provided at the lower end of the groove facing the body portion, and the first protrusion and the body portion are arranged at intervals along a second direction perpendicular to the first direction; wherein, when the busbar bracket is installed on the side of the battery, the lower end of the terminal assembly is engaged between the first protrusion and the body portion.

29. The battery pack according to claim 28, characterized in that: The upper end of the first protrusion facing the body has a chamfered structure; and / or The lower end of the first protrusion is connected to the body via an abutment portion; when the busbar bracket is mounted on the side of the battery, the bottom surface of the terminal assembly abuts against the top surface of the abutment portion; and / or The main body is provided with a second protrusion extending toward the first protrusion, and the first protrusion and the second protrusion are arranged at a distance; wherein, when the busbar bracket is installed on the side of the battery, the lower end of the terminal assembly is engaged between the first protrusion and the second protrusion.

30. The battery pack according to claim 1, characterized in that, The main body has a frame structure and an opening. A limiting plate is provided in the opening, and the limiting plate occupies part of the space of the opening. The part of the opening not occupied by the limiting plate forms a through hole, which is connected to the groove. When the busbar is provided on the busbar bracket, the main body of the busbar is located on the side of the limiting plate facing away from the protective part. The connecting part passes through the through hole and is connected to the pole post assembly accommodated in the groove.

31. The battery pack according to claim 1, characterized in that, The body portion is provided with a snap-fit ​​protrusion, and the body portion is configured to snap the busbar with the snap-fit ​​protrusion.

32. The battery pack according to claim 31, characterized in that, The busbar is provided with a slot, and the snap-fit ​​protrusion engages with the slot.

33. The battery pack according to claim 1, characterized in that, The main body has a frame structure and an opening. A limiting plate is provided in the opening, and the limiting plate occupies part of the space of the opening. The part of the opening not occupied by the limiting plate forms a through hole. When the busbar is provided on the busbar bracket, the main body of the busbar is located on the side of the limiting plate facing away from the protective part, and the connecting part of the busbar passes through the through hole and is located on the side of the main body where the protective part is provided.

34. The battery pack according to claim 33, characterized in that, The wall of the through hole in the main body is provided with a limiting protrusion, which is used to limit the connection part of the busbar.

35. The battery pack according to claim 1, characterized in that, The explosion-proof valve of the battery is located at the bottom and / or top of one side surface of the battery along the first direction; wherein, when the busbar bracket is installed on the side of the battery, the orthographic projection of the busbar bracket and the orthographic projection of the explosion-proof valve at least partially overlap on one side surface of the battery along the first direction.

36. A method for assembling a battery pack, characterized in that, For assembling the battery and the busbar bracket as described in claim 28 or 29, comprising: The busbar bracket is fixed using tooling; The battery is inserted from top to bottom so that the lower end of the battery terminal assembly engages between the first protrusion and the body portion.

37. A method for assembling a battery pack, characterized in that, For assembling the battery and the busbar bracket of claim 18, comprising: The plurality of batteries are fixed into the battery array using tooling. The busbar bracket is inserted from top to bottom relative to the battery array, with at least a portion of the battery terminal assembly being accommodated in the groove. Then, the busbar bracket is pushed toward the battery array so that a portion of the terminal assembly is secured in the positioning groove.

Images