Protection assembly of new energy automobile battery

Abstract

The utility model relates to a new energy automobile battery protection assembly which comprises a protection shell used for installing a battery pack, the protection shell is formed by detachably connecting two half shells, openings are formed in the surfaces of the half shells, vertical plates are arranged on the two sides of the interior of the openings, reinforcing frames are arranged outside the vertical plates, and the reinforcing frames are arranged on the surfaces of the half shells. The reinforcing frames are fixedly connected to the inner walls of the half shells, heat dissipation openings located in the protection shell are formed between the two vertical plates and the reinforcing frames, and the protection shell can protect the heat dissipation openings against impact. According to the utility model, the vertical plates are arranged to extend the heat dissipation opening into the protective shell, so that the protective shell can protect the heat dissipation opening and prevent the heat dissipation opening from being damaged and affecting heat dissipation, and the reinforcing frame is arranged to be matched with the two vertical plates to form the heat dissipation opening and improve the strength of the protective shell at the opening; therefore, the protection assembly of the new energy automobile battery solves the problem that the heat dissipation port is easy to damage in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicles, and in particular to a protective component of a new energy vehicle battery. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels as their power source and integrate advanced technologies in vehicle power control and drive to form vehicles with advanced technical principles, new technologies and new structures. Existing new energy vehicles mainly include four types: hybrid electric vehicles, pure electric vehicles, fuel cell electric vehicles, and other new energy vehicles.

[0003] In order to reduce the damage to the battery of new energy vehicles, a protective box is generally set outside the battery. However, the battery will generate a lot of heat when working. This heat is easy to accumulate in the protective box to form a high temperature environment. The battery overheating is easy to cause danger. Therefore, heat dissipation ports are generally set on the surface of the protective box and a heat dissipation fan is set on the inner wall to improve the heat dissipation effect. After searching, a Chinese patent with publication number CN 112886157 A discloses a battery protection structure for new energy vehicles. The structure dissipates heat from the battery by opening a heat dissipation groove on the surface of the protective shell. However, the heat dissipation groove is on the surface of the protective shell and will be directly exposed to the impact, which may easily cause the position of the heat dissipation groove to deform and weaken the heat dissipation effect.

[0004] In order to solve the above problems, the utility model proposes a protective component for a new energy vehicle battery. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art, meet practical needs, and provide a protective component for a new energy vehicle battery to solve the above-mentioned technical problems.

[0006] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is:

[0007] A protective component for a new energy vehicle battery includes a protective shell for installing a battery pack, wherein the protective shell is composed of two half shells that are detachably connected, an opening is provided on the surface of the half shell, and vertical plates are provided on both sides of the opening, a reinforcement frame is provided outside the vertical plate, and the reinforcement frame is fixedly connected to the inner wall of the half shell, a heat dissipation port located inside the protective shell is formed between the two vertical plates and the reinforcement frame, and the protective shell can protect the heat dissipation port from impact.

[0008] Furthermore, two cooling fans are fixedly connected to the inner bottom wall of the lower half shell, and the two cooling fans are located in the circular space formed between the inner wall of the lower half shell and the battery pack, and the two cooling fans are respectively located on both sides of the heat dissipation port, and the heat dissipation ports located in the two half shells are in a corresponding state, one of the heat dissipation ports is located on the lower side of the protective shell for air intake, and the other heat dissipation port is located on the upper side of the protective shell for exhaust.

[0009] Furthermore, the vertical plate can be rotatably arranged inside the opening, the size of the heat dissipation port can change with the temperature change in the protective shell, the inner bottom wall of the opening is rotatably connected with a rotating shaft, the vertical plate is fixedly connected to the surface of the rotating shaft, the upper surface and the lower surface of the vertical plate are fixedly connected with a first rubber strip, and the same filter part is arranged on the two vertical plates.

[0010] Furthermore, the filter portion includes a first rotating seat rotatably connected to the two end portions of the vertical plates respectively, the inner bottom wall of the first rotating seat is rotatably connected to a mounting frame, the inner wall of the mounting frame is fixedly connected to a filter screen, the end surfaces of the two mounting frames that are close to each other are rotatably connected to the same second rotating seat, the bottom end of the second rotating seat is slidably connected to the inner wall of the half shell, a driving portion for driving the second rotating seat to move is arranged in the half shell, and the upper and lower surfaces of the mounting frame are fixedly connected to a second rubber strip.

[0011] Furthermore, a limiting groove is provided on the inner wall of the half shell, the inner wall of the limiting groove is slidably connected to a limiting block, and the top end of the limiting block is fixedly connected to the bottom end of the second rotating seat.

[0012] Furthermore, the driving part includes a mounting groove opened on the inner wall of the half shell, the inner bottom wall of the mounting groove is fixedly connected to a tube body with an open end, the inner cavity of the tube body is provided with mercury, and the inner wall of the tube body is slidably connected to a piston to prevent mercury leakage, one side of the piston is fixedly connected to a push rod, one end of the push rod passes through the end face of the tube body and the inner wall of the limit groove and is fixedly connected to the back side of the limit block, the inner wall of the tube body is fixedly connected to an end cover, a spring is provided between the piston and the end cover, one end of the spring is fixedly connected to one side of the end cover, and the other end of the spring is fixedly connected to one side of the piston.

[0013] Furthermore, the lower surface of the mounting frame is rotatably connected to a driving pulley and a driven pulley respectively, the surfaces of the driving pulley and the driven pulley are provided with the same transmission belt, the driven pulley is transmission-connected to the driving pulley via the transmission belt, the surface of the transmission belt is fixedly connected to a rod body, and the side of the rod body close to the filter is fixedly connected to bristles.

[0014] Furthermore, a curved groove is provided on the inner wall of the half shell, the lower surface of the active pulley is rotatably connected to a rotating column, the surface of the rotating column is fixedly connected to a friction ring, the friction ring is located inside the curved groove, and the surface of the friction ring is tightly attached to the inner wall of one side of the curved groove to generate friction.

[0015] Furthermore, a U-shaped fixing plate is fixedly connected to one side of the half shell in an open shape, a mounting hole is opened on the upper surface of the fixing plate, and a bolt is arranged in the mounting hole, and a nut is threadedly connected to the surface of the bolt.

[0016] Beneficial effects:

[0017] 1. In the utility model, the heat dissipation port is extended to the inside of the protective shell by arranging a vertical plate, so that the protective shell can provide protection for it and prevent it from being damaged and affecting heat dissipation. A reinforcement frame is arranged to cooperate with two vertical plates to form the heat dissipation port and improve the strength of the protective shell at the opening, so that the protective component of the new energy vehicle battery solves the problem that the heat dissipation port is easily damaged in the prior art.

[0018] 2. In the utility model, by setting a driving part, as the temperature in the protective shell increases, the speed of the cooling fan becomes faster, the volume of mercury changes, and then overcomes the external forces such as the spring and friction to push the piston to move inward, the piston drives the push rod to move, the push rod drives the limit block to move inward along the limit groove, and then drives the second rotating seat to move, and then drives the two mounting frames to rotate, so that the angle between the two mounting frames becomes larger, and then the heat dissipation port becomes larger, so that more cooling air enters the protective shell and contacts with the surface of the battery pack, thereby improving the heat dissipation efficiency, reducing the resistance to air circulation, reducing the energy consumption of the cooling fan and the noise generated. Similarly, when the temperature in the protective shell decreases, the speed of the cooling fan slows down, the volume of mercury decreases, and under the resetting action of the spring, the heat dissipation port becomes smaller, reducing the air entering the protective shell, so as to ensure that the air flow rate in the protective shell can ensure the heat dissipation effect when the speed of the cooling fan is slow.

[0019] 3. In the utility model, by arranging a friction ring to cooperate with the curved groove, when the size of the heat dissipation port changes, the friction ring moves along the curved groove and rotates itself, the friction ring drives the active pulley to rotate, and the transmission belt moves with the cooperation of the driven pulley, and the transmission belt drives the rod body and the brush to move, brushing off the dust attached to the surface of the filter, cleaning the surface of the filter, and preventing the filter from being blocked and affecting the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the half shell of the utility model;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the heat dissipation port of the utility model in the largest state;

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of the utility model when the heat dissipation port is in the smallest (closed) state;

[0025] Figure 6 It is a three-dimensional structural schematic diagram of the filter screen of the utility model;

[0026] Figure 7 It is a three-dimensional structural schematic diagram of the conveyor belt of the utility model;

[0027] Figure 8 For this utility model Figure 7 A schematic diagram of the enlarged structure at A in the middle;

[0028] Fig. 9 It is a three-dimensional structural schematic diagram of the rod body and bristles of the utility model;

[0029] Fig.10 It is a schematic diagram of the top view structure of the limit groove and the curved groove of the utility model;

[0030] Fig.11 For this utility model Fig.10 A schematic diagram of the enlarged structure at B in the middle;

[0031] Fig.12 It is a three-dimensional structural schematic diagram of the driving part of the utility model;

[0032] Fig.13 It is a schematic diagram of the cross-sectional structure of the pipe body of the utility model.

[0033] The reference numerals are as follows:

[0034] 1. Battery pack; 2. Half shell; 3. Vertical plate; 4. Reinforcement frame; 5. Cooling fan; 6. Rotating shaft; 7. First rubber strip; 8. First rotating seat; 9. Mounting frame; 10. Filter; 11. Second rotating seat; 12. Second rubber strip; 13. Limiting groove; 14. Limiting block; 15. Tube body; 16. Piston; 17. Push rod; 18. Spring; 19. Active pulley; 20. Driven pulley; 21. Transmission belt; 22. Rod body; 23. Bristles; 24. Curved groove; 25. Rotating column; 26. Friction ring; 27. Fixed plate; 28. Bolt; 29. ​​Nut; 30. End cover. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-13 The utility model is further described with examples:

[0036] like Figure 1-13 As shown, a protective component for a new energy vehicle battery includes a protective shell for installing a battery pack 1, the protective shell is composed of two half shells 2 that are detachably connected, an opening is opened on the surface of the half shell 2, and vertical plates 3 are arranged on both sides of the opening, and a reinforcement frame 4 is arranged outside the vertical plate 3, and the reinforcement frame 4 is fixedly connected to the inner wall of the half shell 2, and a heat dissipation port located inside the protective shell is formed between the two vertical plates 3 and the reinforcement frame 4, and the protective shell can protect the heat dissipation port from impact.

[0037] Two cooling fans 5 are fixedly connected to the inner bottom wall of the lower half shell 2. The two cooling fans 5 are located in the circular space formed between the inner wall of the lower half shell 2 and the battery pack 1, and the two cooling fans 5 are respectively located on both sides of the heat dissipation port. The heat dissipation ports in the two half shells 2 are in a corresponding state, one of the heat dissipation ports is located on the lower side of the protective shell for air intake, and the other heat dissipation port is located on the upper side of the protective shell for exhaust.

[0038] A U-shaped fixing plate 27 is fixedly connected to one side of the half shell 2 which is in an open shape. A mounting hole is formed on the upper surface of the fixing plate 27, and a bolt 28 is arranged in the mounting hole. A nut 29 is threadedly connected to the surface of the bolt 28.

[0039] Specifically, the installation and disassembly of the two half shells 2 are facilitated by providing a mounting plate, bolts 28 and nuts 29, the heat dissipation fan 5 and the heat dissipation port are provided to ensure efficient heat dissipation of the battery so that it can work normally, the heat dissipation port is extended to the interior of the protective shell by providing a vertical plate 3 so that the protective shell can provide protection for it and prevent it from being damaged and affecting heat dissipation, and the heat dissipation port is formed by providing a reinforcement frame 4 in cooperation with the two vertical plates 3 and improving the strength of the protective shell at the opening.

[0040] Since most cooling fans 5 are equipped with temperature sensors and speed control circuits, the speed of cooling fans 5 can be automatically adjusted according to temperature changes. When the temperature in the protective box rises, the temperature sensor will detect this change and send a signal to the speed control circuit. The speed control circuit adjusts the speed of cooling fans 5 according to the received signal to increase the cooling effect and reduce the temperature. Normally, when the temperature rises, the speed of cooling fans 5 will increase to provide a stronger air volume to help dissipate heat. On the contrary, when the temperature in the protective box drops, the temperature sensor will also detect this change and adjust the speed of cooling fans 5 accordingly. This can avoid excessive heat dissipation resulting in low temperature or energy waste. In the prior art, the heat dissipation ports are generally fixed in shape and cannot effectively cooperate with the speed control of cooling fans 5. Therefore, in this embodiment, Figure 4-Figure 6 , Figure 10-13As shown, the vertical plate 3 can be rotatably arranged inside the opening, and the size of the heat dissipation port can change with the temperature change in the protective shell. The inner bottom wall of the opening is rotatably connected with a rotating shaft 6, and the vertical plate 3 is fixedly connected to the surface of the rotating shaft 6. The upper surface and the lower surface of the vertical plate 3 are fixedly connected with a first rubber strip 7, and the two vertical plates 3 are provided with the same filter part.

[0041] The filter portion includes a first rotating seat 8 rotatably connected to the ends of the two vertical plates 3 respectively, the inner bottom wall of the first rotating seat 8 is rotatably connected to a mounting frame 9, the inner wall of the mounting frame 9 is fixedly connected to a filter screen 10, the adjacent end surfaces of the two mounting frames 9 are rotatably connected to the same second rotating seat 11, the bottom end of the second rotating seat 11 is slidably connected to the inner wall of the half shell 2, a driving portion for driving the second rotating seat 11 to move is arranged in the half shell 2, and the upper and lower surfaces of the mounting frame 9 are fixedly connected to a second rubber strip 12.

[0042] The inner wall of the half shell 2 is provided with a limiting groove 13 , the inner wall of the limiting groove 13 is slidably connected to a limiting block 14 , and the top end of the limiting block 14 is fixedly connected to the bottom end of the second rotating seat 11 .

[0043] The driving part includes a mounting groove provided on the inner wall of the half shell 2, and a tube body 15 with an open end is fixedly connected to the inner bottom wall of the mounting groove, the inner cavity of the tube body 15 is provided with mercury, and a piston 16 is slidably connected to the inner wall of the tube body 15 to prevent mercury leakage, a push rod 17 is fixedly connected to one side of the piston 16, one end of the push rod 17 passes through the end face of the tube body 15 and the inner wall of the limit groove 13 and is fixedly connected to the back side of the limit block 14, an end cover 30 is fixedly connected to the inner wall of the tube body 15, a spring 18 is provided between the piston 16 and the end cover 30, one end of the spring 18 is fixedly connected to one side of the end cover 30, and the other end of the spring 18 is fixedly connected to one side of the piston 16.

[0044] Specifically, by setting a driving part, as the temperature in the protective shell increases, the speed of the cooling fan 5 becomes faster, the volume of mercury changes, and then overcomes the external forces such as the spring 18 and friction to push the piston 16 to move inward, the piston 16 drives the push rod 17 to move, the push rod 17 drives the limit block 14 to move inward along the limit groove 13, and then drives the second rotating seat 11 to move, and then drives the two mounting frames 9 to rotate, so that the angle between the two mounting frames 9 becomes larger, and then the heat dissipation port becomes larger, so that more cooling air enters the protective shell and contacts the surface of the battery pack 1, thereby improving the heat dissipation efficiency, reducing the resistance to air circulation, reducing the energy consumption of the cooling fan 5 and the noise generated, similarly, when the temperature in the protective shell decreases, the speed of the cooling fan 5 slows down, the volume of mercury decreases, and under the resetting action of the spring 18, the heat dissipation port becomes smaller, reducing the air entering the protective shell, so as to ensure that the air flow rate in the protective shell can ensure the heat dissipation effect when the speed of the cooling fan 5 is slow.

[0045] In this embodiment, Figure 7-Figure 9 As shown, the lower surface of the mounting frame 9 is rotatably connected with a driving pulley 19 and a driven pulley 20, and the surfaces of the driving pulley 19 and the driven pulley 20 are provided with the same transmission belt 21. The driven pulley 20 is transmission-connected to the driving pulley 19 through the transmission belt 21, and the surface of the transmission belt 21 is fixedly connected with a rod body 22, and the side of the rod body 22 close to the filter screen 10 is fixedly connected with bristles 23.

[0046] A curved groove 24 is formed on the inner wall of the half shell 2, and a rotating column 25 is rotatably connected to the lower surface of the driving pulley 19. A friction ring 26 is fixedly connected to the surface of the rotating column 25. The friction ring 26 is located inside the curved groove 24, and the surface of the friction ring 26 is in close contact with the inner wall of one side of the curved groove 24 to generate friction.

[0047] Specifically, by setting the friction ring 26 to cooperate with the curved groove 24, when the size of the heat dissipation port changes, the friction ring 26 moves along the curved groove 24 and rotates itself, the friction ring 26 drives the active pulley 19 to rotate, and with the cooperation of the driven pulley 20, the transmission belt 21 moves, and the transmission belt 21 drives the rod body 22 and the bristles 23 to move, brushing off the dust attached to the surface of the filter 10, cleaning the surface of the filter 10, and preventing the filter 10 from being blocked and affecting the heat dissipation effect. The shape of the curved groove 24 is consistent with the movement trajectory of the active pulley 19 along the mounting frame 9.

[0048] Working principle: When the protective component of the new energy vehicle battery is used, the battery pack 1 is first installed at the bottom of one of the half shells 2, and then the heat dissipation fan 5 is installed. Then, the two half shells 2 are conveniently installed using the mounting plate, bolts 28 and nuts 29. The vertical plate 3 extends the heat dissipation port to the inside of the protective shell so that the protective shell can provide protection for it to prevent damage to the heat dissipation. In addition, the reinforcement frame 4 cooperates with the two vertical plates 3 to form the heat dissipation port and improve the strength of the protective shell at the opening, which solves the problem that the heat dissipation port is easily damaged in the prior art.

[0049] During the use of the protective component of the new energy vehicle battery, under normal conditions, the volume change of mercury cannot drive the piston 16 to move, and the heat dissipation port is extremely small or closed, thereby improving the protective ability of the protective shell;

[0050] When the temperature in the protective shell reaches the set value, the cooling fan 5 starts to dissipate heat for the battery pack 1 in cooperation with the heat dissipation port. When the temperature in the protective shell gradually rises, the rotation speed of the cooling fan 5 becomes faster. At this time, the volume change of mercury can overcome the spring 18 and external forces such as friction to push the piston 16 to move inward, and the piston 16 drives the push rod 17 to move. The push rod 17 drives the limit block 14 to move inward along the limit groove 13. The limit block 14 drives the second rotating seat 11 to move, and the second rotating seat 11 drives the two mounting frames 9 to rotate, so that the angle between the two mounting frames 9 becomes larger, thereby making the heat dissipation port larger, so that more cooling air enters the protective shell and contacts the surface of the battery pack 1, thereby improving the heat dissipation efficiency, reducing the resistance to air circulation, and reducing the energy consumption and noise generated by the cooling fan 5;

[0051] Similarly, when the temperature in the protective shell decreases, the speed of the cooling fan 5 slows down, the volume of mercury decreases, and under the reset action of the spring 18, the heat dissipation port becomes smaller, reducing the amount of air entering the protective shell, so as to ensure that the air flow rate in the protective shell can ensure the heat dissipation effect when the speed of the cooling fan 5 is slow;

[0052] In addition, when the size of the heat dissipation port changes, the friction ring 26 moves along the curved groove 24 and rotates itself, the friction ring 26 drives the active pulley 19 to rotate, and with the cooperation of the driven pulley 20, the transmission belt 21 moves, and the transmission belt 21 drives the rod body 22 and the bristles 23 to move, brushing off the dust attached to the surface of the filter 10, cleaning the surface of the filter 10, and preventing the filter 10 from being blocked and affecting the heat dissipation effect.

[0053] The embodiments disclosed in the present utility model are preferred embodiments, but are not limited thereto. Ordinary technicians in this field can easily understand the spirit of the present utility model based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present utility model, they are all within the protection scope of the present utility model.

Claims

1. A protective assembly for a new energy vehicle battery, comprising a protective shell for mounting a battery pack (1), wherein the protective shell is composed of two half shells (2) that are detachably connected, and characterized in that: An opening is provided on the surface of the half shell (2), and vertical plates (3) are provided on both sides of the opening. A reinforcement frame (4) is provided outside the vertical plates (3), and the reinforcement frame (4) is fixedly connected to the inner wall of the half shell (2). A heat dissipation port located inside the protective shell is formed between the two vertical plates (3) and the reinforcement frame (4), and the protective shell can protect the heat dissipation port from impact.

2. A protective component for a new energy vehicle battery as claimed in claim 1, characterized in that: Two cooling fans (5) are fixedly connected to the inner bottom wall of the lower half shell (2), the two cooling fans (5) are located in a circular space formed between the inner wall of the lower half shell (2) and the battery pack (1), and the two cooling fans (5) are located on both sides of the cooling port, respectively. The cooling ports located in the two half shells (2) are in a corresponding state, one of the cooling ports is located at the lower side of the protective shell for air intake, and the other cooling port is located at the upper side of the protective shell for air exhaust.

3. A protective component for a new energy vehicle battery as claimed in claim 1, characterized in that: The vertical plate (3) is rotatably arranged inside the opening, the size of the heat dissipation port can be changed as the temperature inside the protective shell changes, the inner bottom wall of the opening is rotatably connected to a rotating shaft (6), the vertical plate (3) is fixedly connected to the surface of the rotating shaft (6), the upper surface and the lower surface of the vertical plate (3) are both fixedly connected to a first rubber strip (7), and the two vertical plates (3) are provided with the same filter portion.

4. A protective component for a new energy vehicle battery as claimed in claim 3, characterized in that: The filter portion comprises a first rotating seat (8) rotatably connected to the ends of the two vertical plates (3), the inner bottom wall of the first rotating seat (8) is rotatably connected to a mounting frame (9), the inner wall of the mounting frame (9) is fixedly connected to a filter screen (10), the adjacent end surfaces of the two mounting frames (9) are rotatably connected to the same second rotating seat (11), the bottom end of the second rotating seat (11) is slidably connected to the inner wall of the half shell (2), a driving portion for driving the second rotating seat (11) to move is arranged in the half shell (2), and the upper surface and the lower surface of the mounting frame (9) are fixedly connected to a second rubber strip (12).

5. A protective component for a new energy vehicle battery as claimed in claim 4, characterized in that: The inner wall of the half shell (2) is provided with a limiting groove (13), the inner wall of the limiting groove (13) is slidably connected to a limiting block (14), and the top end of the limiting block (14) is fixedly connected to the bottom end of the second rotating seat (11).

6. A protective component for a new energy vehicle battery as claimed in claim 5, characterized in that: The driving part comprises a mounting groove formed on the inner wall of the half shell (2); a tube body (15) having an open end is fixedly connected to the inner bottom wall of the mounting groove; the inner cavity of the tube body (15) is provided with mercury; and a piston (16) for preventing mercury leakage is slidably connected to the inner wall of the tube body (15); a push rod (17) is fixedly connected to one side of the piston (16); one end of the push rod (17) penetrates the end surface of the tube body (15) and the inner wall of the limit groove (13) and is fixedly connected to the back side of the limit block (14); an end cover (30) is fixedly connected to the inner wall of the tube body (15); a spring (18) is provided between the piston (16) and the end cover (30); one end of the spring (18) is fixedly connected to one side of the end cover (30); and the other end of the spring (18) is fixedly connected to one side of the piston (16).

7. A protective component for a new energy vehicle battery as claimed in claim 6, characterized in that: The lower surface of the mounting frame (9) is rotatably connected to a driving pulley (19) and a driven pulley (20), respectively; the surfaces of the driving pulley (19) and the driven pulley (20) are provided with a same transmission belt (21); the driven pulley (20) is transmission-connected to the driving pulley (19) via the transmission belt (21); the surface of the transmission belt (21) is fixedly connected to a rod body (22); and a side of the rod body (22) close to the filter screen (10) is fixedly connected to bristles (23).

8. A protective component for a new energy vehicle battery as claimed in claim 7, characterized in that: The inner wall of the half shell (2) is provided with a curved groove (24); the lower surface of the driving pulley (19) is rotatably connected to a rotating column (25); the surface of the rotating column (25) is fixedly connected to a friction ring (26); the friction ring (26) is located inside the curved groove (24); and the surface of the friction ring (26) is in close contact with an inner wall of one side of the curved groove (24) to generate friction force.

9. A protective component for a new energy vehicle battery as claimed in claim 1, characterized in that: A U-shaped fixing plate (27) is fixedly connected to one side of the half shell (2) in an open shape, a mounting hole is provided on the upper surface of the fixing plate (27), a bolt (28) is arranged in the mounting hole, and a nut (29) is threadedly connected to the surface of the bolt (28).

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