Battery pack copper bar protection tool

Abstract

The utility model discloses a battery pack copper bar protection tool which comprises a protection main board and a positioning structure, and the positioning structure is located on the lower surface of the protection main board and used for positioning the protection main board above a battery module of a battery pack. The protection main board is provided with at least one positioning through groove, and the positioning through groove is used for positioning the position of a copper bar. Before the copper bar is installed, the positioning structure on the lower surface of the protection main board is clamped on the fixing bolt used for fixing the battery pack, and the position of the protection tool cannot deviate in the installation process of the copper bar. When the copper bar is installed, a plurality of positioning through grooves matched with the copper bar in shape and installation position are formed in the protection main board, so that installation errors of the copper bar can be further prevented, and safety accidents and product damage risks caused by installation dislocation of the copper bar are effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of energy storage batteries, and in particular to a protective fixture for copper busbars in a battery pack. Background Technology

[0002] With the rapid development of the energy storage industry, energy storage battery packs, as the core components of energy storage systems, are receiving increasing attention for quality and safety management during their production process. In existing technologies, battery modules in energy storage systems are typically connected using copper busbars. Copper busbars are a metallic material with excellent electrical conductivity and are commonly used for connections in electrical equipment. During copper busbar installation, insulating protective fixtures are usually used to prevent arcing between the copper busbar and other metal materials. Furthermore, to prevent incorrect installation of the copper busbars, several error-proofing measures are implemented, such as designing the installation positioning based on the shape of the copper busbar.

[0003] Currently, the installation of copper busbars in battery packs typically involves covering the installation location with PC insulating sheets, extending above the module to leave space for the copper busbars. However, because existing protective fixtures are only 1mm thick, wear or damage may occur during use, potentially leading to arcing between the copper busbars and other metal materials, posing a safety hazard. Furthermore, existing mistake-proofing measures may not completely prevent incorrect installation of the copper busbars, thus affecting the stable operation and safety of the energy storage system. Therefore, current technologies need improvement in terms of safety, reliability, and efficiency. Thus, designing a protective fixture that meets production requirements while effectively protecting the connection between the battery module and the copper busbars has become an urgent industry need. Utility Model Content

[0004] In view of this, in order to solve the problems mentioned in the background art, a protective fixture for the copper busbar of a battery pack is proposed.

[0005] To achieve the above objectives, this utility model provides a protective fixture for copper busbars in a battery pack, including a protective main board and a positioning structure. The positioning structure is located on the lower surface of the protective main board and is used to position the protective main board above the battery modules of the battery pack. At least one positioning through slot is formed on the protective main board, and the positioning through slot is used to position the copper busbar.

[0006] Furthermore, the height of the positioning structure is greater than the thickness of the copper busbar.

[0007] Furthermore, the positioning structure includes a plurality of cylindrical positioning pins, and each positioning pin has a central hole, through which it can engage or disengage with a fixing bolt used to fix the battery module.

[0008] Furthermore, the shape of the positioning slot corresponds to the shape of the copper busbar.

[0009] Furthermore, the position of the positioning slot corresponds to the position where the copper busbar on the battery pack needs to be installed.

[0010] Furthermore, the protective motherboard covers the copper busbar at the battery module connection point.

[0011] Furthermore, the length of the protective motherboard is greater than or equal to the length of the battery module connection.

[0012] Furthermore, the protective tooling is made of insulating material.

[0013] Compared with the prior art, the present invention has at least the following beneficial effects:

[0014] This invention provides a highly efficient, reliable, simple, and easy-to-operate protective fixture for battery pack copper busbars. Before installing the copper busbars, the positioning structure on the lower surface of the protective mainboard is snapped onto the fixing bolts used to secure the battery pack, ensuring that the protective fixture does not shift during copper busbar installation. During installation, multiple positioning slots matching the shape and installation position of the copper busbars are cut into the protective mainboard to further prevent installation errors, effectively reducing the risk of safety accidents and product damage caused by misaligned copper busbars. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the battery pack and the protective fixture for the battery pack copper busbar in one embodiment of the present invention when they are not installed;

[0016] Figure 2 This is a schematic diagram of the structure of the battery pack copper busbar protective fixture in one embodiment of the present invention;

[0017] Figure 3 This is a top view of a battery pack copper busbar protective fixture installed on a battery pack in one embodiment of the present invention;

[0018] Figure 4 This is an enlarged view of the relative positions of the positioning pin and the bolt cap on the fixing bolt in an unengaged state according to an embodiment of the present invention.

[0019] Among them, 1. Protective fixture for copper busbar of battery pack; 11. Protective main board; 111. Positioning through groove; 12. Positioning pin; 2. Battery pack; 3. Copper busbar; 4. Fixing bolt; 41. Bolt cap. Detailed Implementation

[0020] The following is a more detailed description of a battery pack copper busbar protective fixture according to the present invention, with reference to the schematic diagrams, which illustrate preferred embodiments of the present invention. It should be understood that those skilled in the art can modify the present invention described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the present invention.

[0021] For clarity, not all features of the actual embodiments are described. In the following description, well-known functions and structures are not detailed in detail, as they would confuse the present invention with unnecessary detail. It should be understood that in the development of any actual embodiment, numerous implementation details must be made to achieve the developer's specific goals, such as changes from one embodiment to another according to limitations related to the system or business. Furthermore, it should be understood that such development work may be complex and time-consuming, but is merely routine work for those skilled in the art.

[0022] The present invention will be described in more detail below by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0023] like Figure 1 and Figure 2 As shown, this utility model provides a battery pack copper busbar protection fixture 1, including a protective motherboard 11 and a positioning structure.

[0024] Specifically, the positioning structure is located on the lower surface of the protective mainboard 11, used to position the protective mainboard above the battery module of the battery pack, and the positioning structure can engage or disengage with the fixing bolts 4 on the battery module. At least one positioning slot 111 is formed on the protective mainboard 11, used to position the copper busbar 3. The number of positioning slots 111 is set based on the number of copper busbars 3 required during actual installation; four are schematically shown in the figure.

[0025] It should be noted that during the assembly of battery modules within battery pack 2 of the energy storage system, to prevent loosening due to vibration, fixing bolts are typically used to pre-connect the two battery modules, ensuring accurate docking and positioning of the battery modules within battery pack 2. This pre-connection also facilitates the subsequent installation of copper busbars 3, making the production process of battery pack 2 more precise and efficient. Figure 1 In the middle, the fixing bolts 4 are respectively set at both ends of the battery module connection. In order to keep the position of the battery pack copper busbar protection fixture 1 fixed, the positioning structure is connected to the fixing bolts 4.

[0026] Furthermore, the height of the positioning structure is greater than the thickness of the copper busbar 3, which not only prevents the protective motherboard 11 from contacting the copper busbar 3, but also prevents the copper busbar 3 from arcing with other metal materials due to wear or damage to the battery pack copper busbar protective fixture 1 during use.

[0027] Furthermore, the positioning structure includes a plurality of cylindrical positioning pins 12, and each positioning pin 12 has a central hole, through which the positioning pin 12 can be engaged or disengaged from the fixing bolt 4 used to fix the battery module.

[0028] In this embodiment, the positioning structure includes multiple cylindrical positioning pins 12, each positioning pin 12 being a hollow structure with a central hole. The top of the fixing bolt 4 is provided with multiple bolt caps 41. Figure 4 Two bolt caps 41 are schematically shown on one of the fixing bolts 4. The locating pin 12 can engage and fix on the bolt cap 41, preventing the battery pack copper busbar protective fixture 1 from shifting when engaged. Furthermore, after the copper busbar 3 is installed, the locating pin 12 can also be separated from the bolt cap 41 for easy disassembly. Figure 4 In the diagram, the number of positioning pins 12 corresponds to the number of bolt caps 41, with four pins shown in each case.

[0029] Furthermore, the shape of the positioning slot 111 corresponds to the shape of the copper busbar 3. This can prevent incorrect installation orientation of the copper busbar 3 and reduce the difficulty of operation.

[0030] Furthermore, such as Figure 3 As shown, the protective mainboard 11 covers the copper busbar 3 at the battery module connection. The protective mainboard 11 can protect the copper busbar 3 from physical damage, prevent operators from being injured during maintenance or operation, and also prevent the copper busbar 3 from deforming or breaking due to external forces.

[0031] Furthermore, the length of the protective main board 11 is greater than or equal to the length of the battery module connection. The protective main board 11 can fully cover the battery module connection, providing complete protection and preventing damage to the connection from external factors such as impact, abrasion, or liquid intrusion. In addition, the cooperation between the positioning pin 12 and the protective main board 11 can prevent the protective fixture from falling off during installation, improving installation safety.

[0032] It should be noted that, during installation, to ensure the stability of the protective fixture, this embodiment provides multiple connection methods to achieve a secure connection between the protective motherboard 11 and the positioning pin 12. Specifically, these connection methods include:

[0033] Integrated molding: Through mold design, the protective motherboard 11 and the positioning pin 12 are manufactured as a single unit in the same production process, ensuring a seamless and robust connection between the two.

[0034] Welding: Welding technology is used to connect the protective main board 11 and the positioning pin 12 through molten metal to form a durable and stable mechanical and electrical connection.

[0035] Chemical bonding: Using specific chemical adhesives, such as structural adhesives, bonding is achieved between the protective motherboard 11 and the positioning pin 12, providing additional strength and durability.

[0036] Furthermore, the copper busbar protective fixture 1 of the battery pack is made of high-performance insulating materials, such as polyimide, which has good high temperature resistance, insulation resistance and UV resistance, and can effectively prevent arc discharge between the copper busbar 3 and other metal materials on the battery pack 2.

[0037] Specifically, the method of using the protective equipment is as follows:

[0038] Before installing the copper busbar 3, the battery pack copper busbar protective fixture 1 is placed above the battery pack 2 without contacting the FPC (flexible printed circuit board) on the bottom battery module. Then, the positioning pins 12 at both ends are engaged with the bolt caps 41 of the fixing bolts 4 to ensure that the battery pack copper busbar protective fixture 1 does not shift during the installation of the copper busbar 3. The operator can clearly see the installation area of ​​the copper busbar 3 through the positioning through slot 111.

[0039] After the battery pack copper busbar protective fixture 1 is fixed to the battery pack 2, the aluminum busbar of the copper busbar 3 is installed through the positioning through slot 111 of the battery pack copper busbar protective fixture 1. During the installation process, because the protective main board 11 of the protective fixture is located above the battery pack 2 and the aluminum busbar, it not only prevents arc discharge reaction between the copper busbar 3 and the aluminum busbar, but also prevents the copper busbar 3 and the copper busbar fixing bolts used to fix the copper busbar 3 from falling into the gaps of the battery pack. After the copper busbar is installed, the protective fixture can be directly removed from the battery pack and placed in the fixture placement area for repeated use.

[0040] In summary, this utility model provides a highly efficient, reliable, simple, and easy-to-assemble / disassemble protective fixture for battery pack copper busbars. Before installing the copper busbars, the positioning structure on the lower surface of the protective mainboard is snapped onto the fixing bolts used to secure the battery pack, ensuring that the protective fixture does not shift during copper busbar installation. During copper busbar installation, multiple positioning slots matching the shape and installation position of the copper busbars are cut on the protective mainboard to further prevent installation errors, effectively reducing the risk of safety accidents and product damage caused by misaligned copper busbars.

[0041] The above are merely preferred embodiments of this utility model and do not constitute any limitation on this utility model. Any equivalent substitutions or modifications made by those skilled in the art to the technical solutions and contents disclosed in this utility model without departing from the scope of the technical solutions of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A protective fixture for copper busbars in a battery pack, characterized in that, It includes a protective motherboard and a positioning structure. The positioning structure is located on the lower surface of the protective motherboard and is used to position the protective motherboard above the battery module of the battery pack. At least one positioning slot is formed on the protective motherboard, and the positioning slot is used to position the copper busbar.

2. The protective tooling according to claim 1, characterized in that, The height of the positioning structure is greater than the thickness of the copper busbar.

3. The protective tooling according to claim 2, characterized in that, The positioning structure includes multiple cylindrical positioning pins, and each positioning pin has a central hole, through which it can engage or disengage with a fixing bolt used to fix the battery module.

4. The protective tooling according to claim 1, characterized in that, The shape of the positioning slot corresponds to the shape of the copper busbar.

5. The protective tooling according to claim 1, characterized in that, The position of the positioning slot corresponds to the position where the copper busbar on the battery pack needs to be installed.

6. The protective tooling according to claim 1, characterized in that, The protective motherboard covers the copper busbar at the connection point of the battery module.

7. The protective tooling according to claim 6, characterized in that, The length of the protective motherboard is greater than or equal to the length of the battery module connection.

8. The protective tooling according to any one of claims 1-7, characterized in that, The protective equipment is made of insulating material.

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