Splicing battery protection plate structure

The splicable battery protection board structure solves the adaptability problem of the battery protection board in different battery pack sizes and layouts, realizes convenient maintenance and multi-functional integration, and improves production efficiency and equipment practicality.

CN120637641APending Publication Date: 2025-09-12MAOMING BAIQIANG MICROELECTRONICS CO LTD
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Patent Information

Application Number
CN202510842407.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-23
Publication Date
2025-09-12

AI Technical Summary

Technical Problem

Existing battery protection boards are mostly fixed in specifications and single in structure, which makes it difficult to meet the needs of different battery pack sizes and layouts. In addition, complex disassembly and installation processes are required when expanding battery capacity or repairing faults, which increases maintenance costs and time. At the same time, differences in functional requirements make it difficult to achieve convenient multi-functional integration.

Method used

A splicable battery protection board structure is designed. Through the cooperation of multiple sets of snap-in slots and snap-in blocks, the battery protection board daughter board and the motherboard can be flexibly spliced. Combined with the latch, exhaust fan and heat dissipation holes, a simple structure, easy operation and stable battery protection board system is realized.

Benefits of technology

It improves production efficiency and stability, reduces maintenance difficulty and cost, broadens the scope of application, supports the flexibility of battery combination and function upgrade, optimizes space utilization, and adapts to different battery combination requirements.

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Abstract

The invention provides a splicable battery protection plate structure which comprises a battery protection plate mother plate, a connecting plate is fixedly mounted at the bottom of the battery protection plate mother plate, a first battery protection plate daughter board is arranged on the outer side of the battery protection plate mother plate, a second battery protection plate daughter board is arranged on the top of the battery protection plate mother plate, and the battery protection plate daughter board is arranged on the battery protection plate daughter board. A third battery protection board daughter board is arranged on the outer side of the battery protection board mother board. According to the splicable battery protection plate structure, the plurality of groups of battery protection plate sub-plates and the plurality of clamping blocks with different sizes are arranged, so that the whole battery protection plate is of a splicable structure, the structure is simple, the operation is convenient and fast, meanwhile, the structure is firm, and the overall stability is improved; meanwhile, the splicable battery protection board structure can improve the production efficiency, enhances the compatibility, is also beneficial to maintenance and upgrading, does not need to carry out complex operation on the whole protection circuit, reduces the maintenance difficulty and cost, facilitates the miniaturization design of equipment, and improves the overall practicability.
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Description

Technical Field

[0001] The present invention relates to the technical field related to battery protection plate processing, and in particular to a splicable battery protection plate structure. Background Art

[0002] In today's rapidly developing electronic technology, the performance and quality of battery protection boards, as core components of electronic equipment, are of vital importance. As electronic products develop towards miniaturization and multi-functionality, and with the widespread application and development of electronic equipment, batteries, as their key energy supply components, have attracted much attention for their safety and flexibility of use. In various application scenarios, such as large-scale energy storage systems and complex electronic equipment modules, the requirements for battery protection boards are increasing. Therefore, there is a special need for a splicable battery protection board structure.

[0003] However, existing battery protection boards are mostly of fixed specifications and a single structure during use, which makes it difficult to meet the needs of different battery pack sizes and layouts. When the battery capacity needs to be expanded or the batteries need to be combined according to special space limitations, the traditional protection board cannot adapt flexibly. Moreover, when a partial failure occurs in the battery pack and the relevant parts of the protection board need to be repaired or replaced, the integral protection board often requires a complicated disassembly and reinstallation process, which increases the maintenance cost and time. In addition, different battery application scenarios also have different functional requirements for the protection board. The single-structure protection board is difficult to achieve convenient integration of multiple functions. Summary of the Invention

[0004] The purpose of the present invention is to provide a splicable battery protection plate structure to solve the problem that the existing battery protection plates proposed in the above background technology are mostly fixed specifications and single structures during use, which are difficult to meet the needs of different battery pack sizes and layouts. When the battery capacity needs to be expanded or the batteries need to be combined according to special space limitations, the traditional protection plate cannot adapt flexibly. Moreover, when a partial failure occurs in the battery pack and the relevant parts of the protection plate need to be repaired or replaced, the integral protection plate often requires a complicated disassembly and reinstallation process, which increases the maintenance cost and time. In addition, different battery application scenarios also have different functional requirements for the protection plate, and a single-structure protection plate is difficult to achieve convenient integration of multiple functions.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a splicable battery protection board structure, comprising a battery protection board motherboard, a connecting plate fixedly mounted on the bottom of the battery protection board motherboard, a heat dissipation hole provided on the bottom of the connecting plate, an exhaust fan provided on the bottom of the connecting plate, a first snap-in groove provided on the outer side of the battery protection board motherboard, a second snap-in groove provided on the top of the battery protection board motherboard, a third snap-in groove provided on the outer side of the battery protection board motherboard, a latch provided on the outer side of the battery protection board motherboard, A battery protection board sub-board 1 is provided on the outer side of the board, a clamping block 1 is fixedly installed on the outer side of the battery protection board sub-board 1, a mortise 1 is provided on the top of the mortise 1, a mortise 2 is provided on the outer side of the mortise 1, a battery protection board sub-board 2 is provided on the top of the battery protection board motherboard, a clamping block 2 is fixedly installed on the bottom of the battery protection board sub-board 2, a mortise 3 is provided on the outer side of the mortise 2, a battery protection board sub-board 3 is provided on the outer side of the battery protection board motherboard, a clamping block 3 is fixedly installed on the outer side of the battery protection board sub-board 3.

[0006] Preferably, the exhaust fans are provided in four identical groups, and the four groups of exhaust fans are distributed diagonally with respect to the vertical center line of the connecting plate, and the heat dissipation holes are located in the middle of the four groups of exhaust fans.

[0007] Preferably, the aperture size of the first clamping slot is larger than the aperture size of the second clamping slot, and the aperture size of the second clamping slot is larger than the aperture size of the third clamping slot.

[0008] Preferably, the first snap-in slot is located on the outside of the longer side of the battery protection board motherboard, the second snap-in slot is located on the top of the battery protection board motherboard, and the third snap-in slot is located on the outside of the shorter side of the battery protection board motherboard.

[0009] Preferably, the first, second and third card slots are all provided in four identical groups, and the four groups of the first, second and third card slots are diagonally distributed with respect to the vertical center line of the battery protection board motherboard.

[0010] Preferably, the aperture size of the snap-in slot three is adapted to the size of the latch, the aperture size of the snap-in slot three is adapted to the size of the snap-in block three, the size of the latch is consistent with the size of the snap-in block three, and the outer surfaces of the latch and the snap-in block three are both provided with anti-slip structures.

[0011] Preferably, the size of the first clamping block is adapted to the aperture size of the first clamping slot, and the size of the second clamping block is adapted to the aperture size of the second clamping slot.

[0012] Preferably, the size of the second clamping block is adapted to the aperture size of the first mortise, and the aperture of the second mortise is consistent with the aperture of the third mortise.

[0013] Preferably, the clamping block three passes through the clamping block two and extends to the outside of the clamping block one, and the latch passes through the clamping block two and extends to the outside of the clamping block one.

[0014] Preferably, the size and structure of the battery protection board sub-board one, the battery protection board sub-board two and the battery protection board sub-board three are the same, and the size and structure of the battery protection board sub-board one, the battery protection board sub-board two and the battery protection board sub-board three are the same as the battery protection board motherboard.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the battery protection board structure that can be spliced, by setting up multiple groups of battery protection board sub-boards and a variety of different sizes of snap-in blocks, makes the overall battery protection board a spliced ​​structure, which is not only simple in structure and convenient to operate, but also very strong, and improves the overall stability. At the same time, the spliced ​​battery protection board structure can improve production efficiency. During the manufacturing process, it can be flexibly spliced ​​according to actual needs, reducing the time and cost of redesigning the entire protection board due to different battery pack specifications, making the production process more convenient and enhancing compatibility. The splicing feature makes it adaptable to various types and quantities of battery combinations, whether it is a small number of battery combinations for small electronic devices Whether it is a large-scale installation or a large number of battery connections in a large energy storage system, it can be easily handled, which broadens the scope of application. At the same time, this structure is also conducive to maintenance and upgrading. When part of the protection board fails, only the corresponding splicing module needs to be replaced. There is no need to perform complicated operations on the entire protection circuit, which reduces the difficulty and cost of maintenance. Moreover, when the battery technology is upgraded, it is also possible to easily replace or add splicing parts with new functions to improve the performance of the protection board. At the same time, the splicing design optimizes space utilization to a certain extent. The protection board can be spliced ​​according to the shape and installation space of the battery pack, avoiding the space waste caused by the fixed shape of the traditional whole protection board, which is conducive to the miniaturization design of the equipment and improves the overall practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the overall split structure of the present invention;

[0018] Figure 3 Schematic diagram of the battery protection board motherboard structure of the present invention Figure 1 ;

[0019] Figure 4 Schematic diagram of the battery protection board motherboard structure of the present invention Figure 2 ;

[0020] Figure 5 This is a structural diagram of a battery protection board sub-board of the present invention;

[0021] Figure 6This is a structural diagram of the second sub-board of the battery protection board of the present invention;

[0022] Figure 7 This is a schematic diagram of the three structures of the battery protection board sub-board of the present invention;

[0023] Figure 8 This is a schematic diagram of the structure of the first and second sub-boards of the battery protection board of the present invention;

[0024] Figure 9 This is a schematic diagram of the structure of the first and third sub-boards of the battery protection board of the present invention;

[0025] Figure 10 This is a schematic diagram of the structure of the second and third sub-boards of the battery protection board of the present invention;

[0026] Figure 11 This is a schematic diagram of the structure of the first, second and third sub-boards of the battery protection board of the present invention;

[0027] Figure 12 This is a schematic diagram of the structure of the clamping block of the present invention.

[0028] In the figure: 1. Battery protection board motherboard; 2. Connecting board; 3. Heat dissipation hole; 4. Exhaust fan; 5. Snap-in slot 1; 6. Snap-in slot 2; 7. Snap-in slot 3; 8. Latch; 9. Battery protection board 1; 10. Snap-in block 1; 11. Tenon slot 1; 12. Tenon slot 2; 13. Battery protection board 2; 14. Snap-in block 2; 15. Tenon slot 3; 16. Battery protection board 3; 17. Snap-in block 3. DETAILED DESCRIPTION

[0029] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0030] See also Figure 1-12The present invention provides a technical solution: a splicable battery protection board structure, including a battery protection board motherboard 1, a connecting plate 2 is fixedly installed on the bottom of the battery protection board motherboard 1, a heat dissipation hole 3 is opened at the bottom of the connecting plate 2, an exhaust fan 4 is provided at the bottom of the connecting plate 2, a snap-in groove 5 is opened on the outside of the battery protection board motherboard 1, a snap-in groove 6 is opened on the top of the battery protection board motherboard 1, a snap-in groove 7 is opened on the outside of the battery protection board motherboard 1, a latch 8 is provided on the outside of the battery protection board motherboard 1, and a battery protection is provided on the outside of the battery protection board motherboard 1. The outer side of the battery protection board sub-board 9 is fixedly installed with a clamping block 10, the top of the clamping block 10 is provided with a mortise 11, and the outer side of the clamping block 10 is provided with a mortise 2 12. The top of the battery protection board motherboard 1 is provided with a battery protection board sub-board 2 13, the bottom of the battery protection board sub-board 13 is fixedly installed with a clamping block 2 14, and the outer side of the clamping block 2 14 is provided with a mortise 3 15. The outer side of the battery protection board motherboard 1 is provided with a battery protection board sub-board 3 16, and the outer side of the battery protection board sub-board 3 16 is fixedly installed with a clamping block 3 17.

[0031] Four identical groups of exhaust fans 4 are provided, and the four groups of exhaust fans 4 are diagonally distributed with respect to the vertical center line of the connecting plate 2. The heat dissipation holes 3 are located in the middle of the four groups of exhaust fans 4. By providing the exhaust fans 4 and the heat dissipation holes 3, the temperature can be effectively reduced. The exhaust fans 4 and the heat dissipation holes 3 can allow hot air to be discharged in time, preventing the components from degrading or even being damaged due to overheating, reducing the aging of components caused by high temperature, and extending the service life of the equipment.

[0032] The aperture size of the snap-in slot 1 5 is larger than the aperture size of the snap-in slot 2 6 , and the aperture size of the snap-in slot 2 6 is larger than the aperture size of the snap-in slot 3 7 . By setting the aperture sizes of the snap-in slot 1 5 , the snap-in slot 2 6 and the snap-in slot 3 7 in descending order, the snap-in blocks can be stably matched with each other, so that they are fixed on the battery protection board motherboard 1 .

[0033] The snap-in slot 1 5 is located on the outside of the longer side of the battery protection board motherboard 1, the snap-in slot 2 6 is located on the top of the battery protection board motherboard 1, and the snap-in slot 3 7 is located on the outside of the shorter side of the battery protection board motherboard 1. By setting the snap-in slot 1 5, the snap-in slot 2 6 and the snap-in slot 3 7, the slots do not interfere with each other, and the snap-in block can be fixed on the battery protection board motherboard 1.

[0034] The first snap-in slot 5, the second snap-in slot 6 and the third snap-in slot 7 are all provided with the same four groups, and the four groups of the first snap-in slot 5, the second snap-in slot 6 and the third snap-in slot 7 are diagonally distributed with respect to the vertical center line of the battery protection board motherboard 1. Through the coordination between multiple groups of the first snap-in slot 5, the second snap-in slot 6 and the third snap-in slot 7, the production efficiency can be improved. During the manufacturing process, they can be flexibly spliced ​​according to actual needs, reducing the time and cost of redesigning the entire protection board due to different battery pack specifications, making the production process more convenient.

[0035] The aperture size of the snap-in slot three 7 is adapted to the size of the latch 8, the aperture size of the snap-in slot three 7 is adapted to the size of the snap-in block three 17, the size of the latch 8 is consistent with the size of the snap-in block three 17, and the outer surfaces of the latch 8 and the snap-in block three 17 are both provided with anti-slip structures. By providing anti-slip structures on the outer surfaces of the latch 8 and the snap-in block three 17, the structure can be simple and easy to operate, while also being very strong, thereby improving the overall stability. At the same time, the battery protection board structure can be spliced ​​to improve production efficiency.

[0036] The size of the clamping block 10 is adapted to the aperture size of the clamping slot 1 5, and the size of the clamping block 2 14 is adapted to the aperture size of the clamping slot 2 6. Through the cooperation between the clamping block 10 and the clamping slot 1 5 and the cooperation between the clamping block 2 14 and the clamping slot 2 6, the structure can be made simple and easy to operate, while also being very strong, thereby improving the overall stability.

[0037] The size of the snap-in block 2 14 is adapted to the aperture size of the mortise 11, and the aperture of the mortise 2 12 is consistent with the aperture of the mortise 3 15. The compatibility is enhanced through the cooperation between the snap-in block 2 14 and the mortise 1 11 and between the mortise 2 12 and the mortise 3 15. The splicable feature enables it to adapt to various types and quantities of battery combinations, whether it is a small battery configuration for small electronic devices or a large number of battery connections for large energy storage systems, it can be easily handled, thereby broadening the scope of application. At the same time, this structure is also conducive to maintenance and upgrading.

[0038] The clamping block three 17 passes through the clamping block two 14 and extends to the outside of the clamping block one 10, and the latch 8 passes through the clamping block two 14 and extends to the outside of the clamping block one 10. By setting the clamping block three 17 to pass through the clamping block two 14 and extend to the outside of the clamping block one 10, and the latch 8 passes through the clamping block two 14 and extend to the outside of the clamping block one 10, the structure is simple and easy to operate, while also being very strong, thereby improving the overall stability. At the same time, the splicing design optimizes space utilization to a certain extent, and the protective plate can be spliced ​​according to the shape and installation space of the battery pack, thereby avoiding the space waste that may be caused by the fixed shape of the traditional whole protective plate, thereby contributing to the miniaturization design of the equipment and improving the overall practicality.

[0039] The size and structure of the battery protection board sub-board 1 9, the battery protection board sub-board 2 13 and the battery protection board sub-board 3 16 are the same, and the battery protection board sub-board 1 9, the battery protection board sub-board 2 13 and the battery protection board sub-board 3 16 are the same as the size and structure of the battery protection board motherboard 1. By setting up a variety of battery protection boards with the same size and structure, the overall battery protection board is a splicable structure, which is not only simple in structure and easy to operate, but also very strong, thereby improving the overall stability. At the same time, the splicable battery protection board structure can improve production efficiency. During the manufacturing process, it can be flexibly spliced ​​according to actual needs, reducing the time and cost of redesigning the entire protection board due to different battery pack specifications, making the production process more convenient.

[0040] Working principle: When in use, the staff will take out the battery protection board motherboard 1 and check whether the components of the battery protection board motherboard 1 are damaged and whether there are foreign objects blocking the slots. After the inspection, the staff will fix the connecting plate 2 to the bottom of the battery protection board motherboard 1 and turn on multiple sets of exhaust fans 4. Multiple sets of exhaust fans 4 have independent small power supplies. If damage occurs, the damaged exhaust fans 4 can be removed and replaced without complicated operations on the entire protection circuit, reducing the difficulty and cost of maintenance. The exhaust fans 4 can be combined with the heat dissipation holes 3 to cool the battery protection board motherboard 1 that has been working for a long time, preventing the components from being degraded or even damaged due to overheating, reducing the aging of components caused by high temperature, and extending the service life of the equipment. At this time, the staff can According to actual needs, the battery protection board sub-board 19 can be flexibly spliced ​​by inserting the clamping block 10 into the clamping slot 15 of the battery protection board motherboard 1, and inserting the latch 8 into the clamping slot 3 7 for fixation. At this time, the splicing of a battery protection board sub-board 19 is completed. At this time, the staff inserts the battery protection board sub-board 2 13 into the clamping slot 2 6 of the battery protection board motherboard 1 through the clamping block 2 14, and inserts the latch 8 into the clamping slot 3 7 for fixation. At this time, the splicing of a battery protection board sub-board 2 13 is completed. At this time, the staff inserts the battery protection board board 3 16 into the clamping slot 3 7 of the battery protection board motherboard 1 through the clamping block 3 17. At this time, the splicing of a battery protection board board 3 16 is completed. At this time, the work The staff first inserts the battery protection board sub-board 19 into the card slot 15 of the battery protection board motherboard 1 through the card block 10, and then inserts the battery protection board sub-board 2 13 into the card slot 2 6 of the battery protection board motherboard 1 through the card block 2 14, and inserts the latch 8 into the card slot 3 7 for fixation. At this time, the splicing of the two battery protection board sub-boards 19 and the battery protection board sub-board 2 13 is completed. At this time, the staff first inserts the battery protection board sub-board 19 into the card slot 5 of the battery protection board motherboard 1 through the card block 10, and then inserts the battery protection board sub-board 3 16 into the card slot 3 7 of the battery protection board motherboard 1 through the card block 3 17. At this time, the splicing of the two battery protection board sub-boards 19 and the battery protection board sub-board 3 16 is completed. Splicing, at this time the staff first inserts the battery protection board sub-board 2 13 into the snap-in slot 2 6 of the battery protection board motherboard 1 through the snap-in block 2 14, and then inserts the battery protection board sub-board 3 16 into the snap-in slot 3 7 of the battery protection board motherboard 1 through the snap-in block 3 17. At this time, the splicing of the two battery protection board sub-boards 2 13 and the battery protection board sub-board 3 16 is completed. At this time, the staff inserts the battery protection board sub-board 1 9 into the snap-in slot 1 5 of the battery protection board motherboard 1 through the snap-in block 10, and then inserts the battery protection board sub-board 3 16 into the snap-in slot 3 7 of the battery protection board motherboard 1 through the snap-in block 3 17. Finally, insert the battery protection board sub-board 3 16 into the snap-in slot 3 7 of the battery protection board motherboard 1 through the snap-in block 3 17.At this point, the splicing of the three battery protection board sub-boards 1 9 , 2 13 , and 3 16 is complete. The operation is simple and convenient. Workers only need to follow the above process to arbitrarily splice the battery protection board motherboard 1 . When part of the protection board fails, they only need to replace the corresponding splicing module without having to perform complex operations on the entire protection circuit, reducing the difficulty and cost of repairs. Furthermore, when battery technology is upgraded, it is also easy to replace or add splicing parts with new functions to improve the performance of the protection board. The splicing design also optimizes space utilization to a certain extent. Protection boards can be spliced ​​according to the shape and installation space of the battery pack, avoiding the space waste caused by the fixed shape of traditional protection boards and improving overall practicality.

[0041] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A splicable battery protection board structure, comprising a battery protection board motherboard (1), characterized in that: The bottom of the battery protection board motherboard (1) is fixedly mounted with a connecting plate (2), the bottom of the connecting plate (2) is provided with a heat dissipation hole (3), the bottom of the connecting plate (2) is provided with an exhaust fan (4), the outer side of the battery protection board motherboard (1) is provided with a first snap-in groove (5), the top of the battery protection board motherboard (1) is provided with a second snap-in groove (6), the outer side of the battery protection board motherboard (1) is provided with a third snap-in groove (7), the outer side of the battery protection board motherboard (1) is provided with a latch (8), the outer side of the battery protection board motherboard (1) is provided with a first battery protection board sub-board (9), the first battery protection board sub-board (9 ... sub-board (9) is provided with a latch (8), the outer side of the battery protection board sub-board (9) is provided with a latch (8), the outer side of the battery protection board sub-board (9) is provided with a latch (8), the outer side of the battery protection board sub-board (9) is provided with a latch (8), the outer side of the battery protection board sub-board (9) is provided with a latch (8), the outer side of the battery protection board sub-board (9 ) is fixedly installed on the outer side of the battery protection board motherboard (1), a tongue and groove (11) is provided on the top of the said tongue and groove (11), a tongue and groove (12) is provided on the outer side of the said tongue and groove (12), a battery protection board sub-board (13) is provided on the top of the said battery protection board motherboard (1), a tongue and groove (14) is fixedly installed on the bottom of the said battery protection board sub-board (13), a tongue and groove (15) is provided on the outer side of the said tongue and groove (14), a battery protection board sub-board (16) is provided on the outer side of the said battery protection board motherboard (1), and a tongue and groove (17) is fixedly installed on the outer side of the said battery protection board sub-board (16).

2. The splicable battery protection board structure according to claim 1, characterized in that: Four identical groups of exhaust fans (4) are provided, and the four groups of exhaust fans (4) are diagonally distributed with respect to the vertical center line of the connecting plate (2), and the heat dissipation holes (3) are located in the middle of the four groups of exhaust fans (4).

3. The splicable battery protection board structure according to claim 1, characterized in that: The aperture size of the first clamping slot (5) is larger than the aperture size of the second clamping slot (6), and the aperture size of the second clamping slot (6) is larger than the aperture size of the third clamping slot (7).

4. The splicable battery protection board structure according to claim 1, characterized in that: The first snap-in slot (5) is located on the outside of the longer side of the battery protection board motherboard (1), the second snap-in slot (6) is located on the top of the battery protection board motherboard (1), and the third snap-in slot (7) is located on the outside of the shorter side of the battery protection board motherboard (1).

5. The splicable battery protection board structure according to claim 1, characterized in that: The said snap-in slot 1 (5), snap-in slot 2 (6) and snap-in slot 3 (7) are all provided in four identical groups, and the said snap-in slot 1 (5), snap-in slot 2 (6) and snap-in slot 3 (7) are distributed diagonally with respect to the vertical center line of the battery protection board motherboard (1).

6. The splicable battery protection board structure according to claim 1, characterized in that: The aperture size of the clamping slot three (7) is adapted to the size of the latch pin (8), the aperture size of the clamping slot three (7) is adapted to the size of the clamping block three (17), the size of the latch pin (8) is consistent with the size of the clamping block three (17), and the outer surfaces of the latch pin (8) and the clamping block three (17) are both provided with anti-slip structures.

7. The splicable battery protection board structure according to claim 1, characterized in that: The size of the first clamping block (10) is adapted to the aperture size of the first clamping slot (5), and the size of the second clamping block (14) is adapted to the aperture size of the second clamping slot (6).

8. The splicable battery protection board structure according to claim 1, characterized in that: The size of the second clamping block (14) is compatible with the aperture size of the first mortise (11), and the aperture of the second mortise (12) is consistent with the aperture of the third mortise (15).

9. The splicable battery protection board structure according to claim 1, characterized in that: The clamping block three (17) passes through the clamping block two (14) and extends to the outside of the clamping block one (10), and the latch (8) passes through the clamping block two (14) and extends to the outside of the clamping block one (10).

10. The splicable battery protection board structure according to claim 1, characterized in that: The size and structure of the battery protection board sub-board 1 (9), the battery protection board sub-board 2 (13) and the battery protection board sub-board 3 (16) are the same, and the size and structure of the battery protection board sub-board 1 (9), the battery protection board sub-board 2 (13) and the battery protection board sub-board 3 (16) are the same as the battery protection board motherboard (1).