A battery pack support assembly and a battery pack

Abstract

This utility model provides a battery pack support assembly and a battery pack, relating to the field of battery packs. The solution includes an end plate and two terminal blocks. The terminal blocks are disposed on the end plate, and each terminal block has a first support hole and a second support hole. A first fixing member is disposed within the first support hole for connecting a connector to the terminal block. A second fixing member is disposed within the second support hole for connecting a conductive bar to the terminal block. This utility model can reduce the cost of battery pack molds and prevent incorrect installation of terminal blocks.

Description

Technical Field

[0001] This utility model relates to the field of battery packs, and in particular to a battery pack support component and a battery pack. Background Technology

[0002] When batteries are used as an energy source in various applications, multiple battery modules are typically integrated and installed in a battery box. The battery box protects the internal battery modules while also facilitating their installation, replacement, and maintenance.

[0003] In existing technology, to ensure the normal operation of the battery, a flexible acquisition board is used to collect the parameters of the battery cell and transmit these parameters to the controller. The flexible acquisition board is equipped with connectors, and the controller also has matching connectors at corresponding positions. Electrical connection is achieved by plugging and unplugging the connectors on the flexible acquisition board and the connectors on the controller, thereby transmitting the battery cell voltage, temperature, and other signals collected by the acquisition board to the controller. To ensure connection stability, connector terminal blocks are provided on the end plate of the battery pack. The terminal blocks have slots that match the connectors on the flexible acquisition board for fixing the connectors. In addition, the positive and negative terminals of the battery module are also equipped with conductive busbars. The connection points have high currents, and the conductive busbars need to be supported at the end plate. For this purpose, the end plate is also equipped with terminal blocks for supporting the conductive busbars. Corresponding mounting holes are made on the terminal blocks and the conductive busbars, and the two are fastened together using bolts and nuts.

[0004] The above technical solution can guarantee the transmission of electrical signals and current. However, it requires the development of two types of terminal block molds during the battery pack production process, one for producing connector terminal blocks and the other for producing busbar terminal blocks. This setup increases the mold development cost and requires different terminal blocks to be installed at different positions on the end plate, which inevitably leads to misinstallation and increases the probability of rework. Utility Model Content

[0005] To address the technical problems of high mold costs and misinstallation of the two different terminal blocks in the prior art, this utility model provides a battery pack support assembly and a battery pack, which can reduce the mold cost of the battery pack and avoid misinstallation of the terminal blocks.

[0006] In a first aspect, this utility model provides a battery pack support assembly to solve the above-mentioned technical problems, including an end plate and two terminal blocks. The terminal blocks are disposed on the end plate, and the terminal blocks are provided with a first support hole and a second support hole. A first fixing member is disposed in the first support hole, and the first fixing member is used to connect the connector to the terminal block. A second fixing member is disposed in the second support hole, and the second fixing member is used to connect the conductive bar to the terminal block.

[0007] This invention, by setting a terminal block that simultaneously serves as a support for connectors and a conductive busbar, can be manufactured using a single mold, eliminating the need for two different molds and reducing mold development costs. Furthermore, since the two terminal blocks have identical structures, they can be installed at the corresponding positions on the end plate without needing to distinguish between them, thus reducing the probability of misinstallation.

[0008] Furthermore, the first fastener includes a snap-fit ​​nylon rivet, and the second fastener includes a fixing nut, which is interference-fitted with the second support hole and can be connected to a bolt.

[0009] This invention uses snap-fit ​​nylon rivets to install support connectors. The elasticity of the nylon material allows the snap-fit ​​to generate a continuous clamping force after locking, which can reduce the risk of loosening due to vibration.

[0010] Furthermore, the terminal block includes a base body and a limiting component. The base body is vertically provided with the first support hole and the second support hole. The limiting component is provided at the lower part of the base body. The top of the end plate is provided with a mounting hole. The limiting component is detachably connected to the mounting hole.

[0011] This invention enables easy replacement of the terminal block without replacing the end plate through a detachable connection between the terminal block and the end plate, thereby reducing maintenance costs.

[0012] Furthermore, the end plate is provided with a slot, which communicates with the mounting hole. The limiting component includes a limiting member and a connecting member. Both the limiting member and the connecting member can extend into the mounting hole. The limiting member has a C-shaped cross-section. The connecting member is located at the opening of the limiting member. A locking block is provided on the lower outer side of the connecting member. The locking block can engage with the slot.

[0013] This invention enables quick assembly and disassembly of terminal blocks and end plates through the cooperation of slots and blocks, thereby improving production efficiency.

[0014] Furthermore, along the length direction of the end plate, at least four mounting holes are provided, and at least two of each of the first support hole and the second support hole are provided.

[0015] This invention allows for coarse adjustment by providing multiple mounting holes to change the mounting position of the corresponding terminal block according to the insertion position. At the same time, multiple support holes 1 and 2 on the terminal block can change the mounting position of the connector and the conductive busbar on the terminal block, enabling fine adjustment and improving the flexibility of this component.

[0016] Furthermore, the terminal block is provided with a first weight-reducing groove, the end plate is provided with a second weight-reducing groove, and a reinforcing plate is provided inside the second weight-reducing groove.

[0017] This invention achieves lightweight design by setting up a first weight-reduction groove and a second weight-reduction groove.

[0018] Furthermore, the end plate includes an outer facade, and two side facades are respectively provided on the two edges of the outer facade. A limiting groove is provided at the connection between the outer facade and the two side facades, and the limiting groove is used to accommodate the steel strip of the battery pack.

[0019] This invention effectively prevents the steel strip from moving up and down by setting a limiting groove, thereby improving the binding effect of the steel strip.

[0020] Secondly, this utility model also provides a battery pack, including at least two battery modules. Each battery module includes a flexible acquisition plate and a conductive busbar. The flexible acquisition plate has a connector at its end. The battery pack also includes two sets of the aforementioned battery pack support components. Multiple battery modules are arranged between the two sets of battery pack support components. Two end plates are connected to the battery modules via steel strips. The steel strips are engaged with the limiting grooves. The connector has a first connection hole, which is connected to the first support hole via a first fixing component. The conductive busbar has a second connection hole, which is connected to the second support hole via a second fixing component.

[0021] Furthermore, it also includes a liquid-cooled base plate, which is disposed below the battery module, and the end plate is vertically disposed on the liquid-cooled base plate and connected to the liquid-cooled base plate.

[0022] This invention effectively dissipates heat from the battery module by using a liquid-cooled base plate.

[0023] Furthermore, it also includes a chassis, in which the battery module and the battery pack support assembly are both located. The front end of the chassis is provided with an integrated panel, which has multiple mounting bosses. The mounting bosses are respectively provided with a main connector, a manual maintenance switch, a fire sprinkler head, a fire communication interface, and a data acquisition communication interface. The integrated panel is also provided with bracket one and bracket two. Bracket one is provided with a battery management unit, and bracket two is provided with a DC fuse.

[0024] This invention enables the integration of multiple components of the battery pack by setting an integrated panel, thereby achieving modularity and improving the overall structure and maintainability of the battery pack.

[0025] As can be seen from the above technical solutions, this utility model has the following advantages:

[0026] This utility model provides a battery pack support assembly and a battery pack. By setting a terminal block that simultaneously functions as a support connector and a conductive busbar, it can be manufactured using a single mold, eliminating the need for two different molds and reducing mold development costs. Furthermore, the two terminal blocks have identical structures, eliminating the need for differentiation between them before installation at the corresponding positions on the end plate, reducing the probability of misinstallation. The support connector is installed using snap-fit ​​nylon rivets; the elasticity of the nylon material ensures a continuous clamping force after locking, reducing the risk of loosening due to vibration. The detachable connection between the terminal block and the end plate allows for easy replacement of the terminal block without replacing the end plate, reducing maintenance costs. The cooperation of the slot and the locking block enables… This system enables rapid assembly and disassembly of terminal blocks and end plates, improving production efficiency. Multiple mounting holes allow for coarse adjustments by changing the terminal block's position based on the insertion location. Simultaneously, multiple support holes (one and two) on the terminal block allow for fine adjustments by changing the installation positions of connectors and conductive bars, enhancing the component's flexibility. Weight-reduction grooves (one and two) enable lightweight design. Limiting grooves effectively prevent steel strip movement, improving the steel strip's binding effect. A liquid-cooled base plate effectively dissipates heat from the battery module. An integrated panel allows for the integration of multiple battery pack components, achieving modularity and improving the overall structure and maintainability of the battery pack. Attached Figure Description

[0027] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the assembly structure of the conductive busbar and connector in a specific embodiment of this utility model.

[0029] Figure 2 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0030] Figure 3 This is a schematic diagram of the terminal block in a specific embodiment of the present invention.

[0031] Figure 4 This is a schematic diagram of the structure of one end plate in a specific embodiment of this utility model.

[0032] Figure 5 This is a structural schematic diagram of a second specific embodiment of the present utility model.

[0033] Figure 6This is a schematic diagram of the assembly structure of the front integrated panel and various components in the second specific embodiment of this utility model.

[0034] In the diagram, 1. Terminal block; 2. End plate; 3. Limiting component; 4. Battery management unit; 5. Locking block; 6. Connector; 7. Slot; 8. Mounting hole; 9. Base; 10. Support hole one; 11. Fixing nut; 12. Support hole two; 13. Chassis; 14. Limiting assembly; 15. Weight reduction slot one; 16. Weight reduction slot two; 17. Reinforcing plate; 18. Battery module; 19. Connector; 20. Limiting slot; 21. Integrated panel; 22. Conductive busbar; 23. Bracket one; 24. Mounting boss; 25. Fire communication interface; 26. Data acquisition communication interface; 27. Main connector; 28. Fuse; 29. ​​Bracket two; 30. Fire sprinkler head; 31. Manual maintenance switch; 32. Steel strip; 33. Liquid-cooled base plate. Detailed Implementation

[0035] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent. Specific Implementation Method 1

[0037] like Figures 1 to 3 As shown in the figure, this specific embodiment provides a battery pack support assembly, including an end plate 2 and two terminal blocks 1. The terminal blocks 1 are disposed on the end plate 2. The terminal blocks 1 are provided with a first support hole 10 and a second support hole 12. A first fixing member is disposed in the first support hole 10. The first fixing member is used to connect the connector 19 to the terminal block 1. A second fixing member is disposed in the second support hole 12. The second fixing member is used to connect the conductive bar 22 to the terminal block 1.

[0038] In this specific embodiment, both terminal blocks 1 have the dual function of supporting two support connectors 19 and conductive busbars 22. When connecting connectors 19 and conductive busbars 22, the corresponding connection position can be selected, which unifies the structure of terminal blocks 1 on end plate 2, improves the versatility of terminal blocks 1, and can be manufactured using a single mold without the need for two different molds, thus reducing the mold development cost. At the same time, since the two terminal blocks 1 have the same structure, they can be installed at the corresponding positions on end plate 2 without distinguishing between the two terminal blocks 1 during assembly, reducing the probability of misinstallation.

[0039] Preferably, in this specific embodiment, the first fastener includes a snap-fit ​​nylon rivet, which includes a rivet body and a snap-fit. The snap-fit ​​has a contraction groove, and the snap-fit ​​can deform after the rivet body is inserted. The elasticity of the nylon material allows the snap-fit ​​to generate a continuous clamping force after locking, which can reduce the risk of loosening due to vibration. Moreover, the snap-fit ​​nylon rivet is a product already available on the market and can be directly purchased and used without special design. The second fastener includes a fixing nut 11, which is interference-fitted with the second support hole 12. The fixing nut 11 can be connected to a bolt.

[0040] When terminal block 1, connector 19, or conductive busbar 22 malfunctions and requires maintenance, such as... Figures 1 to 3 As shown, in this specific embodiment, the terminal block 1 includes a base 9 and a limiting component 14. The base 9 and the limiting component 14 are injection molded as a single unit. The base 9 has a vertically arranged support hole 10 and a support hole 12. The limiting component 14 is located at the lower part of the base 9. The end plate 2 has a mounting hole 8 at its top. The limiting component 14 is detachably connected to the mounting hole 8. The detachable connection between the terminal block 1 and the end plate 2 allows for easy replacement of the terminal block 1 without replacing the end plate 2, reducing maintenance costs. Preferably, to improve disassembly and assembly efficiency, the end plate 2 has a slot 7 that communicates with the mounting hole 8. The limiting component 14 includes a limiting member 3 and a connecting member 6. Both the limiting member 3 and the connecting member 6 can extend into the mounting hole 8. The cross-section of the limiting member 3... The connector 6, with a C-shaped structure, is positioned at the opening of the limiting member 3. A locking block 5 protrudes from the lower outer side of the connector 6, engaging with the slot 7. During installation, the limiting member 14 is inserted into the mounting hole 8. The connector 6 undergoes elastic deformation under the action of the mounting hole 8 wall and tilts towards the inner wall of the limiting member 3. When the locking block 5 moves into the slot 7, it loses its limiting position, the connector 6 returns to its original shape, and the locking block 5 engages with the slot 7, preventing the terminal block 1 from moving up or down, thus completing the installation. During disassembly, a screwdriver or similar tool is used to press the locking block 5 inwards from the slot 7 position. The connector 6 moves inwards until the locking block 5 is no longer in the slot 7, then the terminal block 1 can be pulled out upwards. Therefore, the cooperation of the slot 7 and the locking block 5 enables rapid assembly and disassembly of the terminal block 1 and the end plate 2, improving production efficiency.

[0041] Because the positions of connector 19 and conductive busbar 22 differ for different battery pack models, such as Figure 3 and Figure 4As shown, to achieve flexible use of this component, at least four mounting holes 8 are provided along the length direction of the end plate 2, and at least two support holes 10 and two support holes 12 are provided. In this specific embodiment, four mounting holes 8 are provided, and two support holes 10 and two support holes 12 are provided. With this configuration, when the installation position needs to be adjusted, the installation position of the corresponding terminal block 1 can be changed by selecting different mounting holes 8 to achieve coarse adjustment. At the same time, selecting different support holes 10 and two support holes 12 on the terminal block 1 can further change the installation position of the connector 19 and the conductive busbar 22 on the terminal block 1 to achieve fine adjustment, thereby improving the flexibility of use of this component.

[0042] like Figure 3 and Figure 4 As shown, in order to achieve lightweight design, in this specific embodiment, the terminal block 1 is provided with a weight reduction groove 15, and the end plate 2 is provided with a weight reduction groove 16. In order to ensure that the strength meets the requirements, a reinforcing plate 17 is provided in the weight reduction groove 16, and the reinforcing plate 17 is inclinedly arranged inside the weight reduction groove 16.

[0043] like Figure 4 As shown, in the prior art, steel strips 32 are often used to bind the end plate 2 and the internal battery module 18. In order to prevent the steel strips 32 from moving due to vibration or other external forces, in this specific embodiment, the end plate 2 includes an outer facade, and the two edges of the outer facade are respectively provided with side facades. A limiting groove 20 is provided at the connection between the outer facade and the two side facades. The limiting groove 20 is used to accommodate the steel strips 32 of the battery pack. Specific Implementation Method Two

[0045] like Figure 5 As shown, this specific embodiment provides a battery pack, including at least two battery modules 18. Each battery module 18 includes a flexible acquisition plate and a conductive busbar 22. The flexible acquisition plate has a connector 19 at its end. The pack also includes two sets of battery pack support assemblies as described in Specific Embodiment 1. Multiple battery modules 18 are arranged between the two sets of battery pack support assemblies. The two end plates 2 are connected to the battery modules 18 by steel strips 32. The steel strips 32 are engaged with the limiting grooves 20. The connector 19 has a first connection hole. The connector 19 is connected to the first support hole 10 by a first fastener, i.e., a snap-fit ​​nylon rivet. The conductive busbar 22 has a second connection hole. The conductive busbar 22 is connected to the second support hole 12 by a second fastener, i.e., a fixing nut 11 and a bolt.

[0046] To achieve effective heat dissipation, this specific embodiment also includes a liquid-cooled base plate 33, which is disposed below the battery module 18. The end plate 2 is vertically disposed on the liquid-cooled base plate 33 and is connected to the liquid-cooled base plate 33 by bolts.

[0047] To protect the internal battery module 18, such as Figure 5 and Figure 6 As shown, this specific embodiment also includes a chassis 13, inside which the battery module 18 and the battery pack support assembly are both disposed. Preferably, the front end of the chassis 13 is provided with an integrated panel 21, on which multiple mounting bosses 24 are provided. Each of the mounting bosses 24 is provided with a main connector 27, a manual maintenance switch 31, a fire sprinkler head 30, a fire communication interface 25, and a data acquisition communication interface 26. The integrated panel 21 is also provided with a first bracket 23 and a second bracket 29. The first bracket 23 is provided with a battery management unit 4, and the second bracket 29 is provided with a DC fuse 28. By setting up the integrated panel 21, multiple components of the battery pack can be integrated and installed, realizing modularity and improving the overall structure and maintainability of the battery pack. In this specific embodiment, two mounting bosses 24 are provided.

[0048] To achieve large-capacity energy storage, this specific embodiment includes four battery modules 18, each of which consists of thirteen cells connected in series. Heat insulation sheets are attached between adjacent cells to prevent heat spread between cells.

[0049] As can be seen from the above specific embodiments, this utility model has the following beneficial effects:

[0050] 1. By setting a terminal block 1 that simultaneously supports both connector 19 and conductive busbar 22, it can be manufactured using a single mold, eliminating the need for two different molds and reducing mold development costs. Furthermore, since the two terminal blocks 1 have identical structures, they can be installed at the corresponding positions on the end plate 2 without needing to distinguish between them, thus reducing the probability of misinstallation.

[0051] 2. By using snap-fit ​​nylon rivets to install the support connector 19, the elasticity of the nylon material allows the snap to generate a continuous clamping force after locking, which can reduce the risk of loosening due to vibration.

[0052] 3. The detachable connection between terminal block 1 and end plate 2 allows for easy replacement of terminal block 1 without replacing end plate 2, reducing maintenance costs;

[0053] 4. The cooperation between the slot 7 and the block 5 enables quick assembly and disassembly of the terminal block 1 and the end plate 2, improving production efficiency;

[0054] 5. By setting multiple mounting holes 8, the mounting position of the corresponding terminal block 1 can be changed according to the insertion position to achieve coarse adjustment. At the same time, by setting multiple support holes 10 and support holes 12 on the terminal block 1, the mounting positions of the connector 19 and the conductive bus 22 on the terminal block 1 can be changed to achieve fine adjustment, thus improving the flexibility of this component.

[0055] 6. Lightweighting can be achieved by setting weight reduction slot 15 and weight reduction slot 2 16;

[0056] 7. By setting the limiting groove 20, the steel strip 32 can be effectively prevented from moving up and down, thus improving the binding effect of the steel strip 32;

[0057] 8. By setting up the integrated panel 21, multiple components of the battery pack can be integrated and installed, realizing modularization and improving the overall structure and maintainability of the battery pack;

[0058] 9. The battery module 18 is effectively cooled by using a liquid-cooled base plate 33.

[0059] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A battery pack support assembly, comprising an end plate (2), characterized in that, It also includes two terminal blocks (1), which are disposed on the end plate (2). The terminal blocks (1) are provided with a first support hole (10) and a second support hole (12). A first fixing member is disposed in the first support hole (10) and the first fixing member is used to connect the connector to the terminal block (1). A second fixing member is disposed in the second support hole (12) and the second fixing member is used to connect the conductive busbar to the terminal block (1).

2. The battery pack support assembly as described in claim 1, characterized in that, The first fastener includes a snap-fit ​​nylon rivet, and the second fastener includes a fixing nut (11). The fixing nut (11) is interference-fitted with the second support hole (12), and the fixing nut (11) can be connected with a bolt.

3. The battery pack support assembly as described in claim 2, characterized in that, The terminal block (1) includes a base (9) and a limiting component (14). The base (9) is vertically provided with the first support hole (10) and the second support hole (12). The limiting component (14) is located at the lower part of the base (9). The end plate (2) is provided with a mounting hole (8) at the top. The limiting component (14) is detachably connected to the mounting hole (8).

4. The battery pack support assembly as described in claim 3, characterized in that, The end plate (2) is provided with a slot (7), which communicates with the mounting hole (8). The limiting component (14) includes a limiting member (3) and a connecting member (6). Both the limiting member (3) and the connecting member (6) can extend into the mounting hole (8). The limiting member (3) has a C-shaped cross-section. The connecting member (6) is located at the opening of the limiting member (3). A locking block (5) is provided on the lower outer side of the connecting member (6). The locking block (5) can engage with the slot (7).

5. The battery pack support assembly as described in claim 4, characterized in that, Along the length of the end plate (2), at least four mounting holes (8) are provided, and at least two support holes (10) and two support holes (12) are provided.

6. The battery pack support assembly as described in any one of claims 2-5, characterized in that, The terminal block (1) is provided with a weight reduction groove (15), the end plate (2) is provided with a weight reduction groove (16), and a reinforcing plate (17) is provided inside the weight reduction groove (16).

7. The battery pack support assembly as described in claim 6, characterized in that, The end plate (2) includes an outer facade, and two side facades are respectively provided on the two edges of the outer facade. A limiting groove (20) is provided at the connection between the outer facade and the two side facades. The limiting groove (20) is used to accommodate the steel strip of the battery pack.

8. A battery pack comprising at least two battery modules (18), each battery module (18) comprising a flexible acquisition board and a conductive busbar (22), wherein a connector (19) is provided at the end of the flexible acquisition board, characterized in that, It also includes two sets of battery pack support assemblies as described in claim 7, multiple battery modules (18) are arranged between the two sets of battery pack support assemblies, the two end plates (2) are connected to the battery modules (18) by steel strips (32), the steel strips (32) are engaged with the limiting grooves (20), the connector (19) is provided with a first connection hole, the connector (19) is connected to the first support hole (10) by the first fixing member, the conductive bus (22) is provided with a second connection hole, the conductive bus (22) is connected to the second support hole (12) by the second fixing member.

9. The battery pack as described in claim 8, characterized in that, It also includes a liquid-cooled base plate (33), which is disposed below the battery module (18), and the end plate (2) is vertically disposed on the liquid-cooled base plate (33) and connected to the liquid-cooled base plate (33).

10. The battery pack as claimed in claim 9, characterized in that, It also includes a chassis (13), the battery module (18) and the battery pack support assembly are both located inside the chassis (13), the front end of the chassis (13) is provided with an integrated panel (21), the integrated panel (21) is provided with multiple mounting bosses (24), the multiple mounting bosses (24) are respectively provided with a main connector (27), a manual maintenance switch (31), a fire sprinkler (30), a fire communication interface (25) and a data acquisition communication interface (26), the integrated panel (21) is also provided with a bracket one (23) and a bracket two (29), the bracket one (23) is provided with a battery management unit (4), and the bracket two (29) is provided with a DC fuse (28).

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