BMS circuit board connecting structure

Abstract

The utility model relates to a BMS circuit board connecting structure which comprises a mounting support and a BMS board arranged on the mounting support, a heat conduction assembly is arranged on the BMS board and comprises a heat conduction silica gel sheet and a heat dissipation block, the heat dissipation block is located on the side, away from the BMS board, of the heat conduction silica gel sheet, and a connecting piece is further arranged on the BMS board. The connecting piece is used for connecting the heat conduction assembly to the BMS board. The BMS board has excellent heat dissipation performance by arranging the two heat dissipation assemblies.

Description

Technical Field

[0001] The utility model relates to the field of circuit boards, in particular to a BMS circuit board connection structure. Background Art

[0002] A Chinese patent with announcement number CN220915524U discloses a BMS battery management device, including a bottom shell, a main board and an upper shell. A storage cavity is provided on the upper surface of the bottom shell, a plurality of inner rods are fixedly connected to the bottom surface of the storage cavity, a plurality of outer rods are fixedly connected to the bottom surface of the upper shell, a plurality of positioning holes are penetrated through the upper surface of the main board, a plurality of inner rods respectively penetrate through the plurality of positioning holes and are slidably connected to the inner walls of the outer rods, and an end of the plurality of outer rods away from the upper shell abuts against the upper surface of the main board.

[0003] The above product improves the structure to facilitate disassembly between the bottom shell and the upper shell, which is convenient for later maintenance of the motherboard. However, the surrounding protective structure of the bottom shell and the upper shell will worsen the heat dissipation of the motherboard and affect the performance of the motherboard. Utility Model Content

[0004] The present application provides a BMS circuit board connection structure, which enables the BMS board to have excellent heat dissipation performance by providing two sets of heat dissipation components.

[0005] The present application provides a BMS circuit board connection structure that adopts the following technical solution:

[0006] A BMS circuit board connection structure comprises a mounting bracket and a BMS board arranged on the mounting bracket, wherein a heat conducting component is arranged on the BMS board, wherein the heat conducting component comprises a heat conducting silicone sheet and a heat dissipation block, wherein the heat dissipation block is located on a side of the heat conducting silicone sheet away from the BMS board, and wherein a connector is further arranged on the BMS board, wherein the connector is used to connect the heat conducting component to the BMS board.

[0007] By adopting the above technical solution, a thermally conductive silicone sheet and a heat dissipation block are provided to improve the heat dissipation performance of the BMS board, thereby preventing the BMS board from overheating and affecting its performance during operation.

[0008] Preferably, the connecting member is a first screw, and the thermally conductive silicone sheet, the heat sink and the BMS board are all provided with a first threaded hole that matches the first screw.

[0009] By adopting the above technical solution, the first screw is threadedly connected to the first threaded hole on the thermally conductive silicone sheet, the heat sink block and the BMS board respectively, so that the thermally conductive silicone sheet, the heat sink block and the BMS board can be fixed together, thereby ensuring that the silicone sheet and the heat sink block improve the heat dissipation performance of the BMS board.

[0010] Preferably, the BMS board is provided with two groups of heat-conducting components, and the two groups of heat-conducting components are respectively located on two sides of the BMS board.

[0011] By adopting the above technical solution, the heat dissipation performance of the BMS board is further improved.

[0012] Preferably, a receiving groove is provided on the heat dissipation block, the first threaded hole on the heat dissipation block is provided on the bottom wall of the receiving groove, and the receiving groove is used to receive a nut of the first screw.

[0013] By adopting the above technical solution, the nut of the screw is prevented from protruding from the heat sink, so that the overall structure of the BMS board is more compact and the required installation space is smaller.

[0014] Preferably, a flat washer and a spring washer are sleeved on the first screw, and the spring washer is located between the nut of the first screw and the flat washer, and the nut of the first screw presses the flat washer and the spring washer into the accommodating groove.

[0015] By adopting the above technical solution, the provision of the flat washer and the spring washer can prevent the first screw from being disengaged from the plurality of first threaded holes due to vibration.

[0016] Preferably, a first groove is formed on the mounting bracket, a plurality of first reinforcing ribs are provided in the first groove, and the plurality of first reinforcing ribs are interconnected to form a grid-like reinforcing structure.

[0017] By adopting the above technical solution, the mounting bracket is a plastic part, and the first groove can reduce the plastic required for the production of a single mounting bracket, thereby achieving the purpose of reducing production costs. The opening of the first groove will reduce the strength of the mounting bracket, so a plurality of first reinforcing ribs are arranged in the first groove to improve the strength of the mounting bracket to compensate for the negative impact caused by the opening of the first groove to a certain extent.

[0018] Preferably, a plurality of limiting blocks are arranged in the first groove, a limiting cavity is formed between the plurality of limiting blocks, and the thermally conductive silicone sheet and the heat dissipation block are both inserted into the limiting cavity.

[0019] By adopting the above technical solution, multiple limit blocks will limit the movement of the thermal conductive silicone sheet and the heat sink, thereby achieving the effect of limiting the movement of the BMS board and ensuring the stable connection between the BMS board and the mounting bracket.

[0020] Preferably, a second reinforcing rib is provided on one end of the plurality of limit blocks close to the bottom wall of the first groove, and two ends of the plurality of second reinforcing ribs are respectively connected to the limit blocks and the mounting bracket.

[0021] By adopting the above technical solution, the provision of the second reinforcing rib can increase the connection strength between the plurality of limit blocks and the mounting bracket, and prevent the connection between the limit block and the mounting bracket from breaking when the limit block is subjected to shear force.

[0022] Preferably, the BMS board is provided with a plurality of second threaded holes, and the plurality of second threaded holes are threadedly connected with second screws, and the mounting bracket is provided with a plurality of third threaded holes, and the plurality of second threaded holes are respectively connected to the plurality of third threaded holes, and the plurality of second screws are respectively threadedly connected to the plurality of third screws.

[0023] By adopting the above technical solution, the plurality of second screws are respectively threadedly connected to the plurality of second threaded holes and the plurality of third threaded holes to firmly connect the BMS board to the mounting bracket.

[0024] Preferably, the mounting bracket is provided with a plurality of limiting columns, and the BMS board is provided with a plurality of limiting grooves which are plugged and matched with the limiting columns.

[0025] By adopting the above technical solution, the placement position of the BMS board on the mounting bracket is limited by the cooperation of the limiting column and the limiting groove, so that when the BMS board is placed on the mounting bracket, the multiple second threaded holes are respectively aligned with the multiple third threaded holes, so that the multiple second screws can connect the BMS board and the mounting bracket.

[0026] The technical effects of this utility model are mainly reflected in the following aspects:

[0027] 1. The utility model improves the heat dissipation performance of the BMS board by arranging two sets of heat dissipation components on the BMS board to prevent the BMS board from overheating during operation;

[0028] 2. The utility model reduces the production cost of the mounting bracket while ensuring the strength of the mounting bracket through the cooperation of the first groove and the plurality of first reinforcing ribs;

[0029] 3. The utility model limits the placement position of the BMS board on the mounting bracket by cooperating with the limit column and the limit groove, so that when the BMS board is placed on the mounting bracket, the multiple second threaded holes are respectively aligned with the multiple third threaded holes, so that the multiple second screws can connect the BMS board and the mounting bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the mounting bracket and BMS board of this application.

[0031] Figure 2 yes Figure 1 Schematic diagram of the structure of the mounting bracket.

[0032] Figure 3 yes Figure 1 Exploded view of the two sets of thermal conductive components, the BMS board, and the two first screws.

[0033] Figure 4 yes Figure 1 Cross-sectional view of the mounting bracket and BMS board along line AA.

[0034] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle.

[0035] Figure numerals: 1. mounting bracket; 11. first groove; 12. first reinforcing rib; 13. limiting block; 14. second reinforcing rib; 15. third threaded hole; 16. limiting column; 2. BMS board; 21. second threaded hole; 22. second screw; 23. limiting groove; 3. thermal conductive component; 31. thermal conductive silicone sheet; 32. heat sink; 321. receiving groove; 4. connecting piece; 41. first screw; 5. first threaded hole; 6. flat washer; 7. spring washer; 8. limiting cavity. DETAILED DESCRIPTION

[0036] The present application is further described in detail below in conjunction with the accompanying drawings to make the technical solution of the present application easier to understand and grasp.

[0037] Reference Figure 1 and Figure 2 , a BMS circuit board connection structure of the present embodiment includes a mounting bracket 1, a BMS board 2 arranged on the mounting bracket 1, and the mounting bracket 1 is mounted on the CCS control module of the battery by a second screw. A first groove 11 is provided on the mounting bracket 1, and a plurality of first reinforcing ribs 12 are integrally formed in the first groove 11, and the plurality of first reinforcing ribs 12 are interconnected to form a grid-like reinforcement structure. The mounting bracket 1 is a plastic part, and the provision of the first groove 11 can reduce the plastic required for the production of a single mounting bracket 1, thereby achieving the purpose of reducing production costs. The provision of the first groove 11 will reduce the strength of the mounting bracket 1, so a plurality of first reinforcing ribs 12 are provided in the first groove 11 to enhance the strength of the mounting bracket 1, and to a certain extent compensate for the strength loss of the mounting bracket 1 caused by the provision of the first groove 11.

[0038] Reference Figure 1-Figure 3 , the BMS board 2 is provided with a plurality of second threaded holes 21, and the plurality of second threaded holes 21 are all threadedly connected with second screws 22, the mounting bracket 1 is provided with a plurality of third threaded holes 15, and the mounting bracket 1 is provided with three limiting columns 16, and the three limiting columns 16 are respectively fixed on the three sides of the mounting bracket 1, and the BMS board 2 is provided with three limiting grooves 17 that are plugged and matched with the limiting columns 16. When the three limiting columns 16 are respectively inserted into the three limiting grooves 17, the plurality of second threaded holes 21 are respectively aligned with the plurality of third threaded holes 15, and the plurality of second screws 22 in the plurality of second threaded holes 21 can be easily threadedly connected to the plurality of third threaded holes 15, thereby connecting the BMS board 2 and the mounting bracket 1.

[0039] Reference Figure 1-Figure 5, two groups of heat-conducting components 3 are connected to the BMS board 2, and the two groups of heat-conducting components 3 are respectively located on both sides of the BMS board 2. The heat-conducting components 3 include a heat-conducting silicone sheet 31 and a heat sink 32. The two heat sinks 32 are located on the side of the heat-conducting silicone sheet 31 away from the BMS board 2, and one group of the heat-conducting silicone sheet 31 and the heat sink 32 are located in the first groove 11. A plurality of limiting blocks 13 are also fixedly connected in the first groove 11, and a limiting cavity 8 is formed between the plurality of limiting blocks 13. The heat-conducting silicone sheet 31 and the heat sink 32 located in the first groove 11 are both inserted in the limiting cavity 8. A second reinforcing rib 14 is provided on one end of the plurality of limiting blocks 13 close to the bottom wall of the first groove 11, and the two ends of the plurality of second reinforcing ribs 14 are respectively connected to the limiting block 13 and the mounting bracket 1.

[0040] Reference Figure 1 , Figure 3-Figure 5 , the BMS board 2 is also provided with two connectors 4, which are used to connect the heat conducting component 3 to the BMS board 2. The connector 4 is a first screw 41, and two first threaded holes 5 matching with the two first screws 41 are provided on the two thermally conductive silicone sheets 31, the two heat dissipation blocks 32, and the BMS board 2. By threading the two first screws 41 into the first threaded holes 5 of these five components, the two thermally conductive silicone sheets 31, the two heat dissipation blocks 32, and the BMS board 2 can be firmly connected together.

[0041] Reference Figure 1 , Figure 3-Figure 5 Two receiving grooves 321 are provided on the heat sink 32 located on the side of the BMS board 2 away from the mounting bracket 1. The two first threaded holes 5 on the heat sink 32 are respectively provided on the bottom walls of the two receiving grooves 321. The two receiving grooves 321 are used to accommodate the nuts of the two first screws 41 to prevent the nuts of the first screws 41 from protruding out of the heat sink 32, thereby making the overall structure of the BMS board 2 more compact and requiring less installation space.

[0042] Reference Figure 1 , Figure 3-Figure 5 The two first screws 41 are sleeved with flat washers 6 and spring washers 7, and the spring washers 7 are located between the nuts of the first screws 41 and the flat washers 6. The nuts of the first screws 41 press the flat washers 6 and the spring washers 7 into the receiving grooves 321. The arrangement of the flat washers 6 and the spring washers 7 can prevent the first screws 41 from being disengaged from the plurality of first threaded holes 5 due to vibration.

[0043] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. A BMS circuit board connection structure, comprising a mounting bracket (1), and a BMS board (2) arranged on the mounting bracket (1), characterized in that: The BMS board (2) is provided with a heat-conducting component (3), the heat-conducting component (3) comprising a heat-conducting silicone sheet (31) and a heat-dissipating block (32), the heat-dissipating block (32) being located on a side of the heat-conducting silicone sheet (31) away from the BMS board (2), and the BMS board (2) is also provided with a connecting piece (4), the connecting piece (4) being used to connect the heat-conducting component (3) to the BMS board (2).

2. A BMS circuit board connection structure according to claim 1, characterized in that: The connecting member (4) is a first screw (41), and the thermal conductive silicone sheet (31), the heat sink (32), and the BMS board (2) are all provided with a first threaded hole (5) that matches the first screw (41).

3. A BMS circuit board connection structure according to claim 1, characterized in that: The BMS board (2) is provided with two groups of heat-conducting components (3), and the two groups of heat-conducting components (3) are respectively located on two sides of the BMS board (2).

4. A BMS circuit board connection structure according to claim 2, characterized in that: The heat sink (32) is provided with a receiving groove (321), the first threaded hole (5) on the heat sink (32) is provided on the bottom wall of the receiving groove (321), and the receiving groove (321) is used to receive the nut of the first screw (41).

5. A BMS circuit board connection structure according to claim 4, characterized in that: A flat washer (6) and a spring washer (7) are sleeved on the first screw (41); the spring washer (7) is located between the nut of the first screw (41) and the flat washer (6); the nut of the first screw (41) presses the flat washer (6) and the spring washer (7) into the receiving groove (321).

6. A BMS circuit board connection structure according to claim 1, characterized in that: The mounting bracket (1) is provided with a first groove (11), a plurality of first reinforcing ribs (12) are provided in the first groove (11), and the plurality of first reinforcing ribs (12) are interconnected to form a grid-like reinforcing structure.

7. A BMS circuit board connection structure according to claim 6, characterized in that: A plurality of limiting blocks (13) are arranged in the first groove (11), a limiting cavity (8) is formed between the plurality of limiting blocks (13), and the thermally conductive silicone sheet (31) and the heat dissipation block (32) are both inserted into the limiting cavity (8).

8. A BMS circuit board connection structure according to claim 7, characterized in that: A second reinforcing rib (14) is provided on one end of the plurality of limit blocks (13) close to the bottom wall of the first groove (11), and the two ends of the plurality of second reinforcing ribs (14) are respectively connected to the limit blocks (13) and the mounting bracket (1).

9. A BMS circuit board connection structure according to claim 1, characterized in that: The BMS board (2) is provided with a plurality of second threaded holes (21), and the plurality of second threaded holes (21) are all threadedly connected with second screws (22); the mounting bracket (1) is provided with a plurality of third threaded holes (15), the plurality of second threaded holes (21) are respectively connected to the plurality of third threaded holes (15), and the plurality of second screws (22) are respectively threadedly connected to the plurality of third screws.

10. A BMS circuit board connection structure according to claim 9, characterized in that: The mounting bracket (1) is provided with a plurality of limiting columns (16), and the BMS board (2) is provided with a plurality of limiting grooves (17) which are plugged into and matched with the limiting columns (16).

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