Copper bar fixing device, battery pack and vehicle

Abstract

The utility model provides a copper bar fixing device, a battery pack and a vehicle. The copper bar fixing device comprises an installation part and a fixing part, the installation part is provided with a copper bar containing groove, the copper bar containing groove is arranged in the length direction of the copper bar fixing device in a penetrating mode, the fixing part comprises a matching part and a fixing part, and the matching part is matched with the installation part in a clamped mode. And the fixing part is used for fixing the copper bar fixing device. The copper bar fixing device, the battery pack and the vehicle are high in stability and high in assembly efficiency.

Description

Technical Field

[0001] This application relates to the field of battery pack technology, and in particular to a copper busbar fixing device, a battery pack, and a vehicle. Background Technology

[0002] A power battery pack typically consists of battery modules, wiring harnesses, and auxiliary devices. Battery modules are often connected at high voltage via copper busbars. Due to the energy density requirements of power batteries, the connections of the copper busbars need to be designed very compactly, placing them very close to related electrical components, thus restricting the routing of the copper busbars. Existing methods for fixing copper busbars usually involve using cable ties to secure them to pre-drilled holes. However, the tightness of the cable ties is difficult to control, easily damaging the copper busbars. Furthermore, disassembly after assembly is difficult, resulting in low maintenance efficiency and failing to meet the requirements for securing power battery packs.

[0003] Therefore, it is necessary to provide an improved copper busbar fixing device, battery pack, and vehicle to solve the above problems. Utility Model Content

[0004] This application provides a copper busbar fixing device, a battery pack, and a vehicle that are highly stable and have high assembly efficiency.

[0005] This application discloses a copper busbar fixing device, including an mounting component and a fixing component. The mounting component is provided with a copper busbar receiving groove, which is provided through the copper busbar receiving groove along the length direction of the copper busbar fixing device. The fixing component includes a mating part and a fixing part. The mating part is engaged with the mounting component, and the fixing part is used to fix the copper busbar fixing device.

[0006] This application installs the copper busbar within the copper busbar receiving groove of the mounting component. The mounting component and the fixing component interlock, allowing for precise positioning of the copper busbar by flexibly setting the positions of the fixing component and the mounting component, thereby improving the stability and reliability of the copper busbar fixation. Simultaneously, the interlocking structure of the mounting component and the fixing component simplifies the assembly process, making installation and disassembly easier, reducing the difficulty of maintenance and replacement, and improving efficiency.

[0007] Furthermore, the mounting component is also provided with a mounting groove parallel to the copper busbar receiving groove, and the mating part extends along the length direction of the copper busbar fixing device and is inserted into the mounting groove from one end of the mounting groove.

[0008] By setting the mounting groove, displacement or loosening between the mating part and the mounting component is effectively prevented, making the snap-fit ​​between the mounting component and the fixing component more stable.

[0009] Furthermore, a spring arm is provided on the side wall of the mounting groove, and a buckle is provided on one side of the spring arm, the buckle extending into the mounting groove; the mating part is provided with a corresponding opening that mates with the buckle.

[0010] The elastic arm provides elasticity to the buckle, and during the assembly of the mounting and fixing parts, it undergoes elastic deformation to lock the buckle into the opening. This not only enhances the security of the fixation, but also allows the mounting and fixing parts to be fixed through simple insertion and engagement operations, making assembly simpler and faster.

[0011] Furthermore, the fixing part and the mating part are arranged in parallel, and the fixing member also includes a bent part connected between the mating part and the fixing part. The distance between the fixing part and the mating part in the thickness direction of the copper busbar fixing device is not less than the thickness of the outer wall of the mounting groove.

[0012] The design of the bending part allows the fastener to better adapt to the space of the mounting slot during assembly, and the battery pack housing will not interfere with the mounting part when it is fixed to the fastener, making the copper busbar fixing device more stable in fixing to the battery pack housing.

[0013] Furthermore, there are several copper busbar receiving slots, which are arranged side by side along the thickness direction of the copper busbar fixing device, and a partition wall is provided between two adjacent copper busbar receiving slots.

[0014] Multiple copper busbars can be fixed simultaneously by setting up several copper busbar receiving slots side by side. By setting up a partition wall between two adjacent copper busbar receiving slots, the copper busbar temperature can be effectively prevented from becoming too high and affecting its conductivity.

[0015] Furthermore, the top of the copper busbar receiving groove has an installation opening, and the side walls of the copper busbar receiving groove are all provided with downwardly inclined limiting protrusions.

[0016] The copper busbar can be inserted into the copper busbar receiving groove from top to bottom through the mounting port for fixation. The limiting protrusion can prevent the copper busbar from detaching from the copper busbar limiting groove at the mounting port. In addition, by setting the limiting protrusion downward, it can guide the copper busbar during installation.

[0017] Furthermore, the mounting component is extruded; the fastener is made of metal.

[0018] Extrusion processes can produce relatively complex structures to meet the design requirements of mounting components, and can achieve mass production, improving production efficiency and reducing production costs. Metal fasteners have strong impact resistance and fatigue resistance, and can effectively help dissipate heat, improving the safety and reliability of copper busbar fixing devices.

[0019] This application also discloses a battery pack, including a copper busbar, a battery pack housing, and several copper busbar fixing devices as described above, wherein the copper busbar is installed in the copper busbar receiving groove, and the fixing part is fixed to the battery pack housing.

[0020] Furthermore, the side of the fixing part away from the copper busbar receiving groove is welded and fixed to the battery pack housing.

[0021] Welding fixation has high strength and stability, making it particularly suitable for use under dynamic loads or vibration environments. The operation process is simple and effectively improves assembly efficiency.

[0022] This application also discloses a vehicle including the battery pack described above.

[0023] The copper busbar fixing device, battery pack, and vehicle of this application install the copper busbar in the copper busbar receiving groove of the mounting component. The mounting component and the fixing component snap together, allowing for precise positioning of the copper busbar by flexibly setting the positions of the fixing component and the mounting component, thereby improving the stability and reliability of the copper busbar fixing. At the same time, the snap-fit ​​structure of the mounting component and the fixing component simplifies the assembly process, making installation and disassembly easier, reducing the difficulty of maintenance and replacement, and improving loading and unloading efficiency.

[0024] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this specification. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.

[0026] Figure 1 This is a perspective view of the copper busbar fixing device and the copper busbar after assembly.

[0027] Figure 2 yes Figure 1 The exploded diagram.

[0028] Figure 3 yes Figure 1 Exploded view of the mounting components of the copper busbar fixing device.

[0029] Figure 4 It is along Figure 3 Sectional view of AA.

[0030] Figure 5 It is along Figure 3 A cross-sectional view of BB.

[0031] Figure 6 yes Figure 1 Exploded view of the fasteners of the copper busbar fixing device.

[0032] Explanation of icon numbers:

[0033] 10. Mounting component; 11. Copper busbar receiving groove; 111. Mounting port; 112. Limiting protrusion; 12. Mounting groove; 121. Elastic arm; 122. Buckle; 123. Outer wall; 124. Guide surface; 13. Partition wall; 20. Fixing component; 21. Mating part; 211. Opening; 212. Guide edge; 22. Fixing part; 23. Bending part; 30. Copper busbar. Detailed Implementation

[0034] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0035] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0036] The embodiments of this application will now be described in detail.

[0037] like Figure 1 and Figure 2 As shown, this application provides a copper busbar fixing device, including a mounting member 10 and a fixing member 20. The mounting member 10 is used to install the copper busbar, and the fixing member 20 is fixed to the battery pack housing (not shown in the figure). The mounting member 10 and the fixing member 20 are engaged to fix the copper busbar 30 to the battery pack housing.

[0038] Please refer to the following at the same time Figures 3 to 5 The mounting component is provided with a copper busbar receiving groove 11, which extends through the copper busbar fixing device along its length. The copper busbar 30 is installed in the copper busbar receiving groove 11. In this application, the length direction of the copper busbar fixing device is the extending direction of the copper busbar 30. The top of the copper busbar receiving groove 11 has a mounting opening 111, through which the copper busbar 30 can be inserted from top to bottom into the copper busbar receiving groove 11 for fixing.

[0039] The sidewalls of the copper busbar receiving groove 11 are provided with limiting protrusions 112. The limiting protrusions 112 are located at the top of the sidewalls of the copper busbar receiving groove 11 and can prevent the copper busbar 30 from disengaging from the mounting port 111 into the copper busbar limiting groove 11. The limiting protrusions 112 are inclined downward and play a guiding role in the process of the copper busbar 30 entering the copper busbar receiving groove 11 from top to bottom.

[0040] The number of copper busbar receiving slots 11 is several, and these slots 11 are arranged side by side along the thickness direction of the copper busbar fixing device. By setting several side by side copper busbar receiving slots 11, multiple copper busbars 30 can be fixed simultaneously to meet the needs of different application scenarios. In this embodiment, the number of copper busbar receiving slots 11 is two. A partition wall 13 is provided between two adjacent copper busbar receiving slots 11, which can effectively prevent the copper busbar 30 from overheating and affecting its conductivity, thereby improving the reliability and stability of the copper busbar fixing device of this application.

[0041] The mounting component 10 is also provided with a mounting groove 12, which is arranged side by side with the copper busbar receiving groove 11 for engaging with the fixing component 20. The mounting groove 12 can be arranged through the length of the copper busbar fixing device, or one end can be closed in the length of the copper busbar fixing device. By providing the mounting groove 12, the position of the fixing component 20 is restricted, effectively preventing displacement or loosening between the fixing component 20 and the mounting component 10, and making the engagement between the mounting component 10 and the fixing component 20 more stable.

[0042] Specifically, a spring arm 121 is provided on the side wall of the mounting groove 12, and a buckle 122 is provided on one side of the spring arm 121, which extends into the mounting groove 12. A corresponding opening 211 is provided on the mating part 21 of the fixing member 20 to mate with the buckle 122. In this embodiment, the side wall of the mounting groove 12 away from the copper busbar receiving groove 11 is the outer wall 123, and the spring arm 121 and buckle 122 are disposed on the outer wall 123. In some cases, the spring arm 121 and buckle 122 may also be disposed on the side wall of the mounting groove 12 close to the copper busbar receiving groove 11.

[0043] The elastic arm 121 provides elasticity to the buckle 122. During the assembly of the mounting part 10 and the fixing part 20, the elastic deformation occurs so that the buckle 122 is locked with the opening 211. This not only enhances the security of the fixation, but also makes the mounting part 10 and the fixing part 20 easier and faster to fix through simple insertion and locking operations.

[0044] Please refer to the following at the same time Figure 6The fastener 20 includes a mating part 21, a fixing part 22, and a bending part 23. The fastener 20 is generally sheet-shaped. The mating part 21 extends along the length of the copper busbar fixing device and is inserted into the mounting groove 12 from one end, engaging with the mounting part 10. The mating part 21 is provided with an opening 211 that engages with the buckle 122.

[0045] Furthermore, on the mounting member 10, from the side near the elastic arm 121 to the side away from the elastic arm 121, the buckle 122 has a guide surface 124 that is inclined along the insertion direction of the fixing member 20. The end of the mating part 21 that is inserted into the mounting groove 12 is provided with an inclined guide edge 212 to facilitate the insertion of the mating part 21 into the mounting groove 12.

[0046] The fixing part 22 and the mating part 21 are arranged parallel to each other and are used to connect with the battery pack housing to fix the copper busbar fixing device. The bending part 23 connects the mating part 21 and the fixing part 22. Under the action of the bending part 23, the distance between the fixing part 22 and the mating part 21 in the thickness direction of the copper busbar fixing device is not less than the thickness of the outer wall 123 of the mounting groove 12. The design of the bending part 23 allows the fixing part 20 to better adapt to the space of the mounting groove 12 during assembly, and the battery pack housing will not interfere with the mounting part 10 when fixed to the fixing part 22, making the fixing of the copper busbar fixing device to the battery pack housing more stable.

[0047] In this embodiment, the mounting component 10 is extruded. The extrusion process can produce relatively complex structures, adapting to the design requirements of the mounting component, and enables mass production, improving production efficiency and reducing production costs. Simultaneously, the plastic material can undergo a certain degree of elastic deformation, facilitating the insertion of the copper busbar 30 and the engagement of the elastic arm 121, the buckle 122, and the mating part 21. The fixing component 20 is made of metal, possessing strong impact resistance and fatigue resistance, and effectively helping to dissipate heat, thus improving the safety and reliability of the copper busbar fixing device.

[0048] This application also provides a battery pack, including a copper busbar 30, a battery pack housing, and several copper busbar fixing devices as described above. The copper busbar 30 is installed in a copper busbar receiving groove 11, and the fixing part 22 is fixed to the battery pack housing. Several copper busbar fixing devices are distributed along the longitudinal direction of the battery pack, and the front, middle, and rear of the copper busbar 30 are all supported by the copper busbar fixing devices, making the fixing of the copper busbar more stable and secure.

[0049] During assembly, the fastener 20 is first fixed to the battery pack housing, and the mounting component 10 is snapped into the fastener 20. Then, the battery pack modules are assembled, and finally, the copper busbar 30 is installed into the mounting component 10, thus completing the installation of the copper busbar 30. The entire assembly process is relatively simple, with high production efficiency and convenient maintenance.

[0050] In this embodiment, the side of the fixing part 22 away from the copper busbar receiving groove 11 is fixed to the battery pack housing by welding, which has high strength and stability, and is particularly suitable for use in environments subjected to dynamic loads or vibrations. Moreover, the welding operation is simple and effectively improves assembly efficiency. In some cases, the fixing part 22 and the battery pack housing can also be fixed by screwing, bonding, or other methods.

[0051] This application also provides a vehicle including the battery pack described above.

[0052] The copper busbar fixing device, battery pack, and vehicle of this application install the copper busbar 30 within the copper busbar receiving groove 11 of the mounting component 10. The mounting component 10 and the fixing component 20 are snap-fitted together. By flexibly setting the positions of the fixing component 20 and the mounting component 10, the copper busbar 30 can be precisely positioned, improving the stability and reliability of the copper busbar 30's fixation. Simultaneously, the snap-fit ​​structure between the mounting component 10 and the fixing component 20 simplifies the assembly process, making installation and disassembly easier, reducing the difficulty of maintenance and replacement, and improving loading and unloading efficiency.

[0053] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A copper bar fixing device characterized by comprising: The mounting piece is provided with a copper bar accommodating groove which is provided through along the length direction of the copper bar fixing device, and the fixing piece includes a matching part and a fixing part, the matching part is in clamping cooperation with the mounting piece, and the fixing part is used for fixing the copper bar fixing device.

2. The copper bar securing device of claim 1, wherein The mounting piece is further provided with a mounting groove which is parallel to the copper bar accommodating groove, and the matching part extends along the length direction of the copper bar fixing device and is inserted into the mounting groove from one end of the mounting groove.

3. The copper bar securing device of claim 2, wherein, The side wall of the mounting groove is provided with an elastic arm, one side of the elastic arm is provided with a buckle which extends into the mounting groove, and the matching part is correspondingly provided with an opening hole which cooperates with the buckle.

4. The copper bar securing device of claim 2, wherein, The fixing part and the matching part are parallel, the fixing piece further includes a bending part which is connected between the matching part and the fixing part, and the distance between the fixing part and the matching part in the thickness direction of the copper bar fixing device is not less than the thickness of the outer wall of the mounting groove.

5. The copper bar securing device of claim 1, wherein The number of the copper bar accommodating grooves is several, and the several copper bar accommodating grooves are arranged side by side along the thickness direction of the copper bar fixing device, and a partition wall is arranged between two adjacent copper bar accommodating grooves.

6. The copper bar securing device of claim 1, wherein The top of the copper bar accommodating groove has a mounting port, and the side wall of the copper bar accommodating groove is provided with a downward inclined limiting protrusion.

7. The copper bar securing device of claim 1, wherein The mounting piece is extrusion formed, and the material of the fixing piece is metal.

8. A battery pack, characterized by, The copper bar fixing device includes a copper bar, a battery pack box body and several copper bar fixing devices as claimed in any one of claims 1-7, the copper bar is mounted in the copper bar accommodating groove, and the fixing part is fixed on the battery pack box body.

9. The battery pack of claim 8, wherein, The side of the fixing part which is away from the copper bar accommodating groove is welded and fixed with the battery pack box body.

10. A vehicle characterized by comprising: The battery pack includes the battery pack as claimed in any one of claims 8-9.

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