BMS assembly mounting structure of battery module

Abstract

The invention belongs to the technical field of power supplies, and particularly relates to a BMS component mounting structure of a battery module, the BMS component mounting structure comprises a mounting plate, a protective frame and a BMS circuit board mounted in an inner cavity of the protective frame, the protective frame and the mounting plate are mounted and fixed, the mounting plate and a shell of a battery are mounted and fixed, jacks are formed in four corners of the upper end surface of the mounting plate, and the BMS circuit board is mounted in the inner cavity of the protective frame. Foot pads are fixedly connected to the four corners of the lower end face of the mounting plate, and rubber gaskets are arranged at the lower ends of the foot pads. The problems that as a BMS circuit board is usually fixed to a battery through bolts, faults and damage are prone to occurring in the complex use environment, the bolt fixing mode enables disassembly and assembly to be not convenient enough, the maintenance and overhaul efficiency is affected, no gap exists between the BMS circuit board and an installation structure due to bolt fixing, and the BMS circuit board cannot be damaged are solved. And heat generated by operation of the BMS circuit board cannot be effectively and quickly discharged and dissipated, and heat is gathered at the lower end of the BMS circuit board, so that tin in the BMS circuit board is melted and short circuit occurs.

Description

Technical Field

[0001] The present invention belongs to the technical field of power supply, and in particular to a BMS component installation structure of a battery module. Background Art

[0002] BMS battery system is commonly known as battery nanny or battery butler. It is mainly used to intelligently manage and maintain each battery unit, prevent overcharging and over-discharging of the battery, extend the battery life, and monitor the battery status. The BMS battery system is a component composed of a BMS circuit board and a mounting structure. Usually, the BMS circuit board is installed inside the mounting structure so that the mounting structure can be used to protect the BMS circuit board, and then the mounting structure is used to fix it with screws and the battery shell. At the same time, the BMS circuit board is connected to the computer to realize the installation of the BMS battery system. However, the use of screws to fix the mounting structure to the battery housing is prone to failure and damage in a complex usage environment, and the screw fixing method makes the disassembly and installation of the mounting structure inconvenient, affecting the maintenance and repair of the BMS circuit board.

[0003] There are still some problems in the actual application of the above scheme. The BMS circuit board is pressed and fixed by utilizing the pressure of pulling down the locking piece. However, if the battery casing is vibrated for a long time due to external factors, the locking piece will become loose and the BMS circuit board cannot be pressed and fixed. Moreover, the use of the locking piece for pressing and fixing will result in no gap between the BMS circuit board and the mounting structure, resulting in the heat generated by the operation of the BMS circuit board being unable to be effectively and quickly dissipated. The heat accumulated at the lower end of the BMS circuit board will cause the tin in the BMS circuit board to melt and short-circuit.

[0004] To this end, the present invention provides a BMS component installation structure for a battery module. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a BMS component mounting structure of a battery module described in the present invention comprises a mounting plate, a protective frame and a BMS circuit board installed in the inner cavity of the protective frame, and the protective frame is fixed to the mounting plate, and the mounting plate is fixed to the outer shell of the battery, the upper surface of the mounting plate is provided with sockets at the four corners, the lower surface of the mounting plate is fixed with foot pads at the four corners, and the lower end of the foot pad is provided with a rubber gasket, a column is inserted into the inner cavity of the socket, the upper end of the column is rotatably connected to the protective frame, four fixing screws are threadedly connected on both sides of the upper end surface of the protective frame, and two of the fixing screws are a group and symmetrically arranged with each other, the external thread of the fixing screw is connected to a limiting block, and the lower end of the limiting block is provided with a latex protective pad for pressing and fixing the BMS circuit board.

[0007] Preferably, a cross mounting plate is installed on the lower end surface of the mounting plate, a heat dissipation cavity is opened inside the mounting plate, and a heat dissipation mesh plate is fixed inside the upper end surface of the mounting plate.

[0008] Preferably, the cross mounting plate is arranged to be hollow, and a dustproof screen is installed in the hollow position, a fixed cover is installed on the upper surface of the cross mounting plate, and the fixed cover is slidably arranged inside the heat dissipation screen Preferably, the fixed cover is located outside the heat dissipation cavity and is evenly provided with a plurality of through holes, the inner cavity of the fixed cover is rotatably provided with fan blades, and the upper end surface of the fixed cover is provided with a mounting groove, the inner cavity of the mounting groove is provided with a micro motor, and the output shaft end of the micro motor is fixedly connected to the fan blades, and the fixed cover is made of semiconductor material.

[0009] Preferably, two protective frames are provided, and a support plate is fixedly connected to the inner wall of each protective frame, and a sponge buffer pad is provided on the upper surface of the support plate for supporting and protecting the BMS circuit board.

[0010] Preferably, a slide groove is provided inside the protection frame, a tension spring is fixedly connected to the bottom of the inner cavity of the slide groove, a sliding column is fixedly connected to one end of the tension spring, and both ends of the sliding column are slidably connected to the two protection frames.

[0011] Preferably, the inner cavity of the socket is provided with a self-locking component, and the self-locking component includes two U-shaped blocks fixedly connected to the inner wall of the socket, the two U-shaped blocks are used to clamp the limiting plug column, and a fixing block is fixedly connected to the outside of the plug column.

[0012] Preferably, two guide bars are fixedly connected to the inner wall of the insertion hole, and each of the guide bars is arranged between two U-shaped clamping blocks, and the guide bars are arranged in an inclined shape to guide the movement of the fixed block.

[0013] Preferably, a rotating ring is rotatably connected to the bottom of the inner cavity of the socket, a spring is fixed to the upper end surface of the rotating ring, and the spring is used to abut the plug column to increase tension, and a mounting hole is opened at the bottom of the inner cavity of the socket, and the mounting hole is used to fix the mounting plate.

[0014] Preferably, two H-shaped slide grooves are symmetrically provided on the inner wall of the protection frame, and an elastic member is slidably connected to the inner cavity of each H-shaped slide groove, and the elastic member is used to abut against the BMS circuit board for shock absorption.

[0015] The beneficial effects of the present invention are as follows: 1. A BMS component mounting structure of a battery module described in the present invention realizes rapid installation and protection of the BMS circuit board through the telescopic pulling force of the protective frame, and an elastic member is arranged in the inner cavity of the protective frame, which can prevent the protective frame from transmitting the vibration force to the BMS circuit board in the inner cavity when the battery body vibrates, and then the protective frame is inserted into the inner cavity of the plug hole by using the plug column on the lower end surface, and the plug column is rotated and moved downward along the guide bar by using the fixed block, and the plug column is bounced up by the spring, and then the fixed block is inserted into the U-shaped card block for rapid installation, and the protective frame is pressed again to drive the plug column to move downward, and then the plug column drives the fixed block to slide out of the U-shaped card block, and then the protective frame is pulled out to drive the BMS circuit board for rapid removal, and when the battery body vibrates, the spring can absorb part of the vibration energy, reduce the amplitude of the vibration directly transmitted to the protective frame, and reduce the vibration felt by the BMS circuit board, thereby improving the rapid installation and disassembly efficiency of the BMS component mounting structure and the stability during use.

[0016] 2. The BMS component mounting structure of a battery module described in the present invention utilizes a protective frame to drive the BMS circuit board to be installed on the mounting plate, and then the power connector of the micro motor is energized with the BMS circuit board. When the battery body is running, the BMS circuit board starts the micro motor to pump the air in the fixed cover, and at the same time extracts the heat generated by the operation of the BMS circuit board through the through hole and the heat dissipation cavity, so that the bottom of the BMS circuit board can be quickly dissipated to improve the service life of the BMS circuit board, thereby solving the problem of the BMS component mounting structure of the existing battery module that the BMS circuit board is usually fixed to the battery housing with bolts or locking parts, which will result in no gap between the BMS circuit board and the mounting structure, and installing an isolation pad between the mounting structure and the BMS circuit board will still cause the heat at the lower end of the BMS circuit board to be unable to be quickly discharged and dissipated, resulting in heat accumulation and the melting and short-circuiting of the tin in the BMS circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a schematic diagram of the structure of the main view of the present invention as a whole; Figure 2 It is a schematic diagram of the structure of the present invention when viewed from above; Figure 3 It is a schematic diagram of the internal structure of a half-section of the mounting plate of the present invention; Figure 4 It is a schematic diagram of the internal structure of a partial cross section of the protection frame of the present invention; Figure 5 This is a schematic diagram of a half-section structure of the mounting plate of the present invention; Figure 6 This is a schematic diagram of the BMS circuit board installation structure of the present invention; Figure 7 This is a schematic diagram of the entire structure of the protective frame disassembly of the present invention; Figure 8 It is a schematic diagram of the overall structure of the protective frame of the present invention; In the figure: 1. Mounting plate; 2. Heat dissipation mesh plate; 3. Fixed cover; 4. Protective frame; 5. Plug column; 6. Fixed screw; 7. Limit block; 8. BMS circuit board; 9. Sliding column; 10. Socket; 11. Foot pad; 12. Mounting hole; 13. Cross mounting plate; 14. Dustproof mesh cover; 15. Support plate; 16. Fixed block; 17. U-shaped block; 18. Guide strip; 19. Spring; 20. Rotating circle; 21. Slide groove; 22. Tension spring; 23. Through hole; 24. Fan blade; 25. Mounting groove; 26. Heat dissipation cavity; 27. Elastic part; 28. H-shaped slide groove. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0020] Embodiment 1 like Figures 1 to 8 As shown, a BMS component mounting structure of a battery module described in an embodiment of the present invention comprises a mounting plate 1, a protective frame 4 and a BMS circuit board 8 installed in the inner cavity of the protective frame 4, and the protective frame 4 is fixedly mounted on the mounting plate 1, and the mounting plate 1 is fixedly mounted on the outer shell of the battery, and the upper end surface of the mounting plate 1 is provided with sockets 10 at four corners, and the lower end surface of the mounting plate 1 is fixedly connected with foot pads 11 at four corners, and the lower end of the foot pad 11 is provided with a rubber gasket, and a plug column 5 is inserted into the inner cavity of the plug hole 10, and the upper end of the plug column 5 is rotatably connected to the protective frame 4, and four fixing screws 6 are threadedly connected on both sides of the upper end surface of the protective frame 4, and two fixing screws 6 are a group and symmetrically arranged with each other, and the fixing screws 6 are externally threadedly connected to the limiting block 7, and the lower end of the limiting block 7 is provided with a latex protective pad for pressing and fixing the BMS circuit board 8.

[0021] Specifically, in the prior art, since the BMS circuit board is usually fixed to the battery shell by screws, its disassembly and installation are not convenient enough, and the lever is used to slide in the L-shaped slide groove to drive the locking piece to press and fix the BMS circuit board. Although the BMS circuit board is convenient to disassemble and install, the battery body is vibrated by external factors for a long time, which may cause the lever to slide out of the L-shaped slide groove, causing the locking piece and the BMS circuit board to fall off. In addition, the fixing of the screws and the locking piece will cause the absence of a gap between the BMS circuit board and the mounting structure, resulting in the heat generated by the operation of the BMS circuit board cannot be effectively and quickly discharged and dissipated, and the heat is accumulated at the lower end of the BMS circuit board, which may cause the tin in the BMS circuit board to melt and short-circuit. The present invention installs the mounting plate 1 with the battery shell, and then installs the BMS circuit board 8 in the inner cavity of the protective frame 4, and twists the fixing screw 6 to fix the limit block 7, so that the BMS circuit board 8 is limited by the limit block 7, and the latex protective pad at the lower end of the limit block 7 is used to press and fix the BMS circuit board 8, and then the protective frame 4 is inserted into the inner cavity of the socket 10 by the plug column 5, and the socket 10 is clamped to the plug column 5, and then the protective frame 4 is fixed, so that the BMS circuit board 8 can be quickly installed, and the BMS circuit board 8 can be lifted by the protective frame 4, so that there is a gap between it and the mounting plate 1, so that the BMS circuit board 8 can be lifted during the operation of the BMS circuit board 8. The heat generated by the MS circuit board 8 is conducted out for dissipation, thereby effectively improving the stability of the operation of the BMS circuit board 8 and increasing the service life of the BMS circuit board 8, thereby solving the problem of the BMS component installation structure of the existing battery module. Since the BMS circuit board is usually fixed to the battery casing with bolts, it is prone to failure and damage in its complex use environment, and the bolt fixing method makes its disassembly and installation inconvenient, affecting the efficiency of maintenance and inspection. In addition, bolt fixing will result in no gap between the BMS circuit board and the battery casing, resulting in the heat generated by the operation of the BMS circuit board being unable to be effectively and quickly discharged for dissipation, and the heat accumulated at the lower end of the BMS circuit board will cause the tin in the BMS circuit board to melt and short-circuit.

[0022] like Figure 1 , Figure 2 and Figure 5 As shown, a cross mounting plate 13 is mounted on the lower end surface of the mounting plate 1 , a heat dissipation cavity 26 is opened inside the mounting plate 1 , and a heat dissipation mesh plate 2 is fixed inside the upper end surface of the mounting plate 1 .

[0023] like Figure 2 and Figure 5 As shown, the cross mounting plate 13 is set to be hollow, and a dustproof mesh cover 14 is installed in the hollow position. A fixed cover 3 is installed on the upper end surface of the cross mounting plate 13, and the fixed cover 3 is slidably set inside the heat dissipation mesh plate 2.

[0024] like Figure 2 and Figure 5 As shown, the fixed cover 3 is located outside the heat dissipation cavity 26 and is evenly provided with a plurality of through holes 23, the inner cavity of the fixed cover 3 is rotatably provided with fan blades 24, and the upper end surface of the fixed cover 3 is provided with a mounting groove 25, the inner cavity of the mounting groove 25 is provided with a micro motor, and the output shaft end of the micro motor is fixedly connected to the fan blades 24, and the fixed cover 3 is made of semiconductor material.

[0025] Specifically, during the operation of the BMS circuit board 8, the fan blades 24 are driven to rotate by starting the micro motor, and the fan blades 24 draw the air in the inner cavity of the fixed cover 3. At the same time, the fixed cover 3 extracts the air in the inner cavity of the heat dissipation cavity 26 through the through hole 23, and the heat generated by the operation of the BMS circuit board 8 enters the inner cavity of the heat dissipation cavity 26 through the mesh holes of the heat dissipation mesh plate 2, and then is extracted by the operation of the fan blades 24. The heat generated by the operation of the BMS circuit board 8 is extracted and discharged, thereby realizing the temperature generated by the operation of the BMS circuit board 8 and improving the service life of the BMS circuit board 8. In addition, the fixed cover 3 is made of semiconductor material, which can more effectively guide the heat generated by the operation of the BMS circuit board 8, thereby improving the heat dissipation effect of the BMS circuit board 8, thereby solving the problem of the BMS component installation structure of the existing battery module. Since the BMS circuit board is usually fixed to the battery casing with bolts, there will be no gap between the BMS circuit board and the battery casing, resulting in the heat generated by the operation of the BMS circuit board cannot be effectively and quickly discharged and dissipated, and the heat accumulates at the lower end of the BMS circuit board, which will cause the tin in the BMS circuit board to melt and short-circuit.

[0026] like Figure 1 , Figure 3 and Figure 6 As shown, two protection frames 4 are provided, and a support plate 15 is fixedly connected to the inner wall of each protection frame 4 , and a sponge buffer pad is provided on the upper end surface of the support plate 15 for supporting and protecting the BMS circuit board 8 .

[0027] Specifically, when installing the BMS circuit board 8, the BMS circuit board 8 is placed between two protective frames 4 and the BMS circuit board 8 is supported by a sponge cushion to prevent the BMS circuit board 8 from directly contacting the support plate 15 and causing wear of the BMS circuit board 8, thereby improving the stability of the BMS circuit board 8 during use.

[0028] Embodiment 2 like Figure 1 , Figure 3 and Figure 4 As shown, a slide groove 21 is provided inside the protection frame 4 , a tension spring 22 is fixedly connected to the bottom of the inner cavity of the slide groove 21 , a slide column 9 is fixedly connected to one end of the tension spring 22 , and both ends of the slide column 9 are slidably connected to the two protection frames 4 .

[0029] like Figure 1and Figure 3 As shown, the inner cavity of the socket 10 is provided with a self-locking component, and the self-locking component includes two U-shaped blocks 17 fixedly connected to the inner wall of the socket 10, and the two U-shaped blocks 17 are used to clamp the limiting plug column 5, and the outside of the plug column 5 is fixedly connected with a fixing block 16.

[0030] like Figure 1 and Figure 3 As shown, two guide bars 18 are fixedly connected to the inner wall of the insertion hole 10 , and each guide bar 18 is arranged between two U-shaped blocks 17 , and the guide bar 18 is arranged in an inclined shape to guide the movement of the fixed block 16 .

[0031] like Figure 1 , Figure 3 and Figure 8 As shown, a rotating ring 20 is rotatably connected to the bottom of the inner cavity of the socket 10, and a spring 19 is fixedly connected to the upper end surface of the rotating ring 20, and the spring 19 is used to abut the plug post 5 to increase tension.

[0032] Specifically, the BMS circuit board 8 is installed in the inner cavity of the protective frame 4, and the fixing screw 6 is twisted to fix the limit block 7, so that the BMS circuit board 8 is limited by the limit block 7, and the latex protective pad at the lower end of the limit block 7 is used to press and fix the BMS circuit board 8, and then the protective frame 4 is picked up and the column 5 is inserted into the inner cavity of the socket 10, and the column 5 drives the fixing block 16 to be inserted into the inner cavity of the socket 10, and the guide bar 18 on the inner wall of the socket 10 is fitted and moved downward, and the guide bar 18 is arranged in an inclined shape, and then the column 5 drives the fixing block 16 to rotate downward along the guide bar 18, so that the column 5 drives the fixing block 16 to rotate to the bottom of the U-shaped block 17, and then the column is popped up by the spring 19. 5, and the plug post 5 drives the fixing block 16 to be inserted into the inner cavity of the U-shaped card block 17 for clamping and fixing. When the BMS circuit board 8 needs to be removed, the plug post 5 is driven to move downward by pressing the protective frame 4, and then the plug post 5 drives the fixing block 16 to rotate and move along the guide bar 18, so that the fixing block 16 slides out of the inner cavity of the U-shaped card block 17, and then the protective frame 4 is pulled out to drive the BMS circuit board 8 to be removed, thereby improving the convenience of disassembly of the BMS circuit board 8, thereby solving the problem that the BMS component installation structure of the existing battery module is that the BMS circuit board is usually fixed to the battery casing with bolts, and its complex use environment is prone to failure and damage, and the bolt fixing method makes its disassembly and installation inconvenient, affecting the efficiency of maintenance and repair.

[0033] like Figure 1 , Figure 2 , Figure 3 and Figure 8 As shown, two H-shaped slide grooves 28 are symmetrically opened on the inner wall of the protection frame 4, and an elastic member 27 is slidably connected to the inner cavity of each H-shaped slide groove 28, and the elastic member 27 is used to abut against the BMS circuit board 8 for shock absorption.

[0034] Specifically, the BMS circuit board 8 is installed in the inner cavity of the protective frame 4, and the elastic member 27 is bounced up to abut against the BMS circuit board 8. At the same time, the tension spring 22 pulls the two protective frames 4 to slide outside the sliding column 9 and move closer to each other, so that the two protective frames 4 clamp the BMS circuit board 8 in the inner cavity, and then cooperate with the elastic member 27 to abut and fix the BMS circuit board 8. When the battery body vibrates, the elastic member 27 and the sponge buffer pad can be used to reduce the vibration of the BMS circuit board 8, thereby improving the service life of the BMS circuit board 8, thereby solving the problem that the BMS component installation structure of the existing battery module does not have a shock-absorbing component, resulting in the battery body being unable to reduce the vibration force transmitted to the BMS circuit board through the mounting plate when the battery body vibrates, causing the BMS circuit board to be easily loosened and affecting signal transmission.

[0035] Working principle: by installing the mounting plate 1 with the battery shell, and then installing the BMS circuit board 8 in the inner cavity of the protective frame 4, and twisting the fixing screw 6 to fix the limit block 7, so as to limit the BMS circuit board 8 by using the limit block 7, and at the same time, use the latex protective pad at the lower end of the limit block 7 to press and fix the BMS circuit board 8, and then pick up the protective frame 4 and insert the column 5 into the inner cavity of the socket 10, and at the same time, make the column 5 drive the fixing block 16 to be inserted into the inner cavity of the socket 10, and move downward in contact with the guide bar 18 on the inner wall of the socket 10, and the guide bar 18 is set in an inclined shape, and then the column 5 drives the fixing block 16 to rotate downward along the guide bar 18, so that the column 5 drives the fixing block 16 to rotate to the bottom of the U-shaped block 17, and then use the spring 19 to bounce the column 5, and make the column 5 drive the fixing block 16 to be inserted into the inner cavity of the U-shaped block 17 for clamping and fixing; When the BMS circuit board 8 needs to be removed, the protective frame 4 is pressed to drive the plug 5 to move downward, and then the plug 5 drives the fixing block 16 to rotate and move along the guide bar 18, so that the fixing block 16 slides out of the inner cavity of the U-shaped card block 17, and then the protective frame 4 is pulled out to drive the BMS circuit board 8 to be removed, thereby improving the convenience of disassembling the BMS circuit board 8; During the operation of the BMS circuit board 8, the fan blades 24 are driven to rotate by starting the micro motor, and the fan blades 24 draw the air in the inner cavity of the fixed cover 3. At the same time, the fixed cover 3 extracts the air in the inner cavity of the heat dissipation cavity 26 through the through hole 23. The heat generated by the operation of the BMS circuit board 8 will enter the inner cavity of the heat dissipation cavity 26 through the mesh holes of the heat dissipation mesh plate 2, and then the heat generated by the operation of the fan blades 24 will be extracted and discharged, thereby realizing the temperature generated by the operation of the BMS circuit board 8 and improving the service life of the BMS circuit board 8. In addition, the fixed cover 3 is made of semiconductor material, which can more effectively extract the heat generated by the operation of the BMS circuit board 8, thereby improving the heat dissipation effect of the BMS circuit board 8.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A BMS component mounting structure for a battery module, comprising a mounting plate (1), a protective frame (4), and a BMS circuit board (8) mounted in an inner cavity of the protective frame (4), wherein the protective frame (4) is fixedly mounted on the mounting plate (1), and the mounting plate (1) is fixedly mounted on a battery housing, characterized in that: The upper end surface of the mounting plate (1) is provided with sockets (10) at four corners, the lower end surface of the mounting plate (1) is fixedly connected with foot pads (11) at four corners, and the lower end of the foot pads (11) is provided with rubber gaskets, the inner cavity of the socket (10) is plugged with a plug post (5), the upper end of the plug post (5) is rotatably connected to the protective frame (4), four fixing screws (6) are threadedly connected on both sides of the upper end surface of the protective frame (4), and two of the fixing screws (6) are a group and are symmetrically arranged with each other, the fixing screws (6) are externally threadedly connected to a limit block (7), and the lower end of the limit block (7) is provided with a latex protective pad for pressing and fixing the BMS circuit board (8).

2. The BMS component installation structure of a battery module according to claim 1, characterized in that: A cross mounting plate (13) is mounted on the lower end surface of the mounting plate (1), a heat dissipation cavity (26) is provided inside the mounting plate (1), and a heat dissipation mesh plate (2) is fixedly connected inside the upper end surface of the mounting plate (1).

3. The BMS component installation structure of a battery module according to claim 2, characterized in that: The cross mounting plate (13) is arranged to be hollow, and a dustproof mesh cover (14) is installed at the hollow position; a fixed cover (3) is installed on the upper end surface of the cross mounting plate (13), and the fixed cover (3) is slidably arranged inside the heat dissipation mesh plate (2).

4. The BMS component installation structure of a battery module according to claim 3, characterized in that: The fixed cover (3) is located outside the heat dissipation cavity (26) and is evenly provided with a plurality of through holes (23); a fan blade (24) is rotatably arranged in the inner cavity of the fixed cover (3); a mounting groove (25) is arranged on the upper end surface of the fixed cover (3); a micro motor is arranged in the inner cavity of the mounting groove (25); and an output shaft end of the micro motor is fixedly connected to the fan blade (24); the fixed cover (3) is made of semiconductor material.

5. The BMS component installation structure of a battery module according to claim 1, characterized in that: The protective frames (4) are provided in two numbers, and a support plate (15) is fixedly connected to the inner wall of each protective frame (4), and a sponge buffer pad is provided on the upper end surface of the support plate (15) for supporting and protecting the BMS circuit board (8).

6. A BMS assembly installation structure for a battery module according to claim 5, characterized in that: A slide groove (21) is provided inside the protection frame (4), a tension spring (22) is fixedly connected to the bottom of the inner cavity of the slide groove (21), one end of the tension spring (22) is fixedly connected to a slide column (9), and both ends of the slide column (9) are slidably connected to the two protection frames (4).

7. The BMS component installation structure of a battery module according to claim 1, characterized in that: The inner cavity of the jack (10) is provided with a self-locking component, and the self-locking component comprises two U-shaped clamping blocks (17) fixedly connected to the inner wall of the jack (10), the two U-shaped clamping blocks (17) are used to clamp the limiting plug column (5), and the plug column (5) is fixedly connected to the outside with a fixing block (16).

8. The BMS component installation structure of a battery module according to claim 7, characterized in that: Two guide bars (18) are fixedly connected to the inner wall of the insertion hole (10), and each of the guide bars (18) is arranged between two U-shaped clamping blocks (17). The guide bars (18) are arranged in an inclined shape and are used to guide the movement of the fixed block (16).

9. The BMS component installation structure of a battery module according to claim 7, characterized in that: A rotating ring (20) is rotatably connected to the bottom of the inner cavity of the socket (10), a spring (19) is fixedly connected to the upper end surface of the rotating ring (20), and the spring (19) is used to abut against the plug post (5) to increase tension. A mounting hole (12) is opened at the bottom of the inner cavity of the socket (10), and the mounting hole (12) is used to fix the mounting plate (1).

10. The BMS component installation structure of a battery module according to claim 1, characterized in that: The inner wall of the protection frame (4) is symmetrically provided with two H-shaped sliding grooves (28), and an elastic member (27) is slidably connected to the inner cavity of each H-shaped sliding groove (28), and the elastic member (27) is used to abut against the BMS circuit board (8) for shock absorption.

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