A battery pack collision test safety protection device

Abstract

The present invention relates to the field of battery safety technology, and in particular to a battery pack collision test safety protection device, which includes a support unit, a clamping unit, a mobile frame, a docking unit and a stationary unit. Among them, the support unit is used to fix the battery pack. The clamping unit is arranged on a trolley, and the trolley is used to carry the battery pack for collision testing. The clamping unit can support the support unit and can clamp or loosen the support unit. The docking unit and the stationary unit are both arranged on the mobile frame. The docking unit can track the position of the trolley and control the mobile frame to move to the trolley. The docking unit can tow and transfer the support unit to the docking unit. The stationary unit includes a stationary platform and a coolant tank. The docking unit can transfer the support unit to the stationary platform. The stationary unit can monitor the real-time temperature of the battery pack, and when the real-time temperature exceeds the preset temperature, the stationary unit can control the stationary platform to move into the coolant tank to reduce the temperature of the battery pack.

Description

Technical Field

[0001] The present invention relates to the field of battery safety technology, and in particular to a battery pack collision test safety protection device. Background Art

[0002] To ensure the safety of the battery pack, a collision test is required before the battery pack leaves the factory. When the battery pack is subjected to a collision test at a speed of 50km / h, the internal structure of an unqualified battery pack will change during the collision, which may cause a short circuit in the battery cell. If the local short circuit expands, the internal temperature of the battery pack will rise sharply in a very short time (about 8-15 seconds), causing the battery pack to burn, or even to explode.

[0003] The current solution to the above problem in the industry is to set up a puddle next to the collision test trolley. Once an accident occurs, the technicians need to quickly remove the battery pack from the trolley and push the battery pack into the water to isolate the oxygen, reduce the temperature of the battery pack, and stop the combustion. However, there are many problems with the manual handling method. Not only is the starting point of the treatment delayed, the processing time is long, and it is easy to cause combustion or even explosion, but the manual handling method also poses a threat to the personal safety of the technicians.

[0004] Therefore, there is an urgent need for a battery pack collision test safety protection device to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a battery pack collision test safety protection device, which can promptly handle damaged battery packs during battery pack collision tests, reduce the possibility of battery pack combustion or even explosion, ensure personal safety, and improve processing efficiency.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A battery pack collision test safety protection device, comprising:

[0008] A supporting unit, wherein the supporting unit is used to fix the battery pack;

[0009] A clamping unit, wherein the clamping unit is disposed on a trolley, the trolley is used to carry the battery pack for a collision test, and the clamping unit can support the supporting unit and can clamp or release the supporting unit;

[0010] Mobile racks;

[0011] A docking unit, the docking unit is arranged on the mobile frame, the docking unit can track the position of the trolley and control the mobile frame to move to the trolley, and the docking unit can pull and transfer the supporting unit to the docking unit;

[0012] A stationary unit is arranged on the mobile rack, the stationary unit includes a stationary platform and a coolant tank, the docking unit can transfer the supporting unit to the stationary platform, the stationary unit can monitor the real-time temperature of the battery pack, and when the real-time temperature exceeds a preset temperature, the stationary unit can control the stationary platform to move into the coolant tank to reduce the temperature of the battery pack.

[0013] Optionally, the clamping unit comprises a connecting rod clamping piece, and the connecting rod clamping piece is used to clamp or release the supporting unit.

[0014] Optionally, the clamping unit also includes a clamping top plate and a ball lifting platform, the clamping top plate is used to support the supporting unit, the clamping top plate is provided with a ball through hole, the ball lifting platform is provided with balls, and the ball lifting platform can move upward until the balls pass through the ball through holes so that the balls abut against the supporting unit.

[0015] Optionally, the docking unit includes a docking conveyor belt to support and convey the supporting unit;

[0016] And / or, a stationary conveyor belt is arranged on the stationary platform to support and convey the supporting unit.

[0017] Optionally, the docking unit further includes a traction assembly, the traction assembly including a first traction rail and a traction claw arranged on the first traction rail, the support unit is provided with a traction column, the traction claw can lock the traction column and slide along the first traction rail to pull the support unit to the docking unit.

[0018] Optionally, the docking unit further includes a lifting frame, and the lifting frame is used to support the lifting of the docking conveyor belt.

[0019] Optionally, a stationary lifting rail is provided on the mobile rack, and the stationary unit includes a stationary frame and a lifting slider connected to each other, and the lifting slider can move on the stationary lifting rail.

[0020] Optionally, the stationary unit further comprises an explosion-proof roof arranged above the stationary conveyor belt.

[0021] Optionally, a smoke exhaust port is provided on the explosion-proof top, and the battery pack collision test safety protection device further includes a smoke collection and purification device, and the smoke collection and purification device is connected to the smoke exhaust port.

[0022] Optionally, a docking horizontal slide rail is further provided on the mobile rack, and the docking unit further includes a docking slider arranged at the bottom, and the docking slider can move on the docking horizontal slide rail.

[0023] Beneficial effects of the present invention:

[0024] The present invention provides a battery pack collision test safety protection device, including a support unit, a clamping unit, a mobile frame, a docking unit and a stationary unit. Among them, the support unit is used to fix the battery pack. The clamping unit is arranged on a trolley, and the trolley is used to carry the battery pack for collision testing. The clamping unit can support the support unit and can clamp or loosen the support unit. The docking unit is arranged on the mobile frame, and the docking unit can track the position of the trolley and control the mobile frame to move to the trolley. The docking unit can tow and transfer the support unit to the docking unit. The stationary unit is arranged on the mobile frame, and the stationary unit includes a stationary platform and a coolant tank. The docking unit can transfer the support unit to the stationary platform. The stationary unit can monitor the real-time temperature of the battery pack, and when the real-time temperature exceeds the preset temperature, the stationary unit can control the stationary platform to move into the coolant tank to reduce the temperature of the battery pack. That is, a clamping unit is arranged on the trolley, and the clamping unit supports the support unit, and the support unit fixes the battery pack. After the trolley carrying the battery pack completes the collision test, the docking unit begins to track the position of the trolley and controls the mobile frame to move to the trolley. The docking unit then tows and transfers the support unit to the docking unit, and then the docking unit transports the support unit to the stationary platform of the stationary unit. The stationary unit can monitor the real-time temperature of the battery pack. When the real-time temperature of the battery pack exceeds the preset temperature, the stationary unit can control the stationary platform to move into the coolant tank so that the battery pack is immersed in the coolant to isolate oxygen and reduce the temperature of the battery pack, thereby realizing the automated process of safe handling of damaged battery packs. The battery pack collision test safety protection device can not only increase the speed of safe handling of damaged batteries and reduce the risk of battery pack combustion or even explosion, but also improve work efficiency and ensure the personal safety of technicians. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a structural schematic diagram of a battery pack collision test safety protection device provided by an embodiment of the present invention from a first perspective (including a battery pack);

[0026] Figure 2 is a structural schematic diagram of a battery pack collision test safety protection device provided by an embodiment of the present invention from a second viewing angle (excluding the battery pack);

[0027] Figure 3 It is a structural schematic diagram of the battery pack collision test safety protection device provided by an embodiment of the present invention from a third perspective (excluding the battery pack).

[0028] In the figure:

[0029] 1. Support unit; 11. Frame bottom plate; 12. Upper frame; 13. Lower frame;

[0030] 2. Clamping unit; 21. Clamping box; 211. Clamping top plate; 212. Clamping bottom plate; 22. Connecting rod clamping piece; 23. Ball lifting platform;

[0031] 3. Docking unit; 31. Docking conveyor belt; 32. Traction assembly; 321. Traction claw; 322. First traction slide rail; 323. First traction drive member; 33. Lifting frame; 34. Docking bottom plate; 35. Docking slider;

[0032] 4. Static unit; 41. Static conveyor belt; 42. Static frame; 43. Lifting slide block; 44. Coolant tank; 45. Explosion-proof roof; 451. Smoke exhaust port;

[0033] 5. Move the rack; 51. Connect the rack body; 52. Connect the guide rails; 53. Static rack body; 54. Move the wheels;

[0034] 6. Smoke collection and purification device;

[0035] 7. Trolley;

[0036] 8. Trolley guide rails. DETAILED DESCRIPTION

[0037] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and implementation methods. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, rather than all of them.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0040] The battery pack needs to undergo a collision test before leaving the factory. When the battery pack is subjected to a collision test at a speed of 50km / h, the internal structure of an unqualified battery pack will change during the collision, which may cause a short circuit in the battery cell. If the local short circuit expands, the internal temperature of the battery pack will rise sharply in a very short period of time, causing the battery pack to burn, and there is even a risk of the battery pack exploding. The existing solution requires technicians to remove the battery pack from the trolley 7 and push it into the water to isolate oxygen, lower the temperature of the battery pack, and stop the burning. This treatment method not only delays the starting point of the treatment, takes a long time to process, and is prone to burning or even exploding, but also poses a threat to the personal safety of technicians. Therefore, this embodiment provides a battery pack collision test safety protection device to solve the above problems.

[0041] like Figure 1-Figure 3As shown, the battery pack collision test safety protection device includes a support unit 1, a clamping unit 2, a mobile frame 5, a docking unit 3 and a stationary unit 4. Among them, the support unit 1 is used to fix the battery pack. The clamping unit 2 is arranged on a trolley 7, and the trolley 7 is used to carry the battery pack for collision testing. The clamping unit 2 can support the support unit 1 and can clamp or loosen the support unit 1. The docking unit 3 is arranged on the mobile frame 5. The docking unit 3 can track the position of the trolley 7 and control the mobile frame 5 to move to the trolley 7. The docking unit 3 can tow and transfer the support unit 1 to the docking unit 3. The stationary unit 4 is arranged on the mobile frame 5. The stationary unit 4 includes a stationary platform and a coolant tank 44. The docking unit 3 can transfer the support unit 1 to the stationary platform. The stationary unit 4 can monitor the real-time temperature of the battery pack, and when the real-time temperature exceeds the preset temperature, the stationary unit 4 can control the stationary platform to move into the coolant tank 44 to reduce the temperature of the battery pack. That is, a clamping unit 2 is provided on the trolley 7, and the clamping unit 2 supports the support unit 1, and the support unit 1 fixes the battery pack. After the trolley 7 carries the battery pack to complete the collision test, the docking unit 3 starts to track the position of the trolley 7 and controls the mobile frame 5 to move to the trolley 7. Then the docking unit 3 tows and transmits the support unit 1 to the docking unit 3, and then the docking unit 3 transports the support unit 1 to the stationary platform of the stationary unit 4. The stationary unit 4 can monitor the real-time temperature of the battery pack. When the real-time temperature of the battery pack exceeds the preset temperature, the stationary unit 4 can control the stationary platform to move to the coolant tank 44, so that the battery pack is immersed in the coolant to isolate oxygen and reduce the temperature of the battery pack, thereby realizing the automated process of safe handling of damaged battery packs. The battery pack collision test safety protection device can not only increase the speed of safe handling of damaged batteries and reduce the risk of battery pack combustion or even explosion, but also improve work efficiency and ensure the personal safety of technicians.

[0042] Optionally, the support unit 1 includes an upper frame 12, a lower frame 13 and a frame bottom plate 11 from top to bottom, and the upper frame 12, the lower frame 13 and the frame bottom plate 11 are fixedly connected. Among them, the upper frame 12 is used to place the battery pack, and the frame body of the upper frame 12 is attached to the surface of the battery pack. There is no relative movement between the battery pack and the upper frame 12, which can avoid collision and damage between the two. Due to the large size of the battery pack, directly carrying the upper frame 12 requires a larger-sized carrying equipment, so a lower frame 13 is also fixed under the upper frame 12, and the width of the lower frame 13 is smaller than that of the upper frame 12. The frame bottom plate 11 is fixed to the bottom of the lower frame 13, and the clamping unit can fix the battery pack by clamping the frame bottom plate 11.

[0043] Optionally, the clamping unit includes a clamping box 21, the clamping box 21 includes a clamping top plate 211 at the top and a clamping bottom plate 212 at the bottom, and a receiving cavity is provided in the clamping box 21. Optionally, the clamping top plate 211 is used to support the support unit 1, and the clamping bottom plate 212 is fixedly connected to the trolley 7 below.

[0044] In order to clamp the support unit 1, the clamping unit 2 may further include a connecting rod clamping member 22, which is used to clamp or release the support unit 1, that is, the connecting rod clamping member 22 is used to clamp or release the frame bottom plate 11. Optionally, a connecting rod through hole is provided on the clamping top plate 211, and the connecting rod clamping member 22 is partially provided in the accommodating cavity, and partially provided above the plane where the clamping top plate 211 is located through the connecting rod through hole, and the bottom of the connecting rod clamping member 22 is fixed to the clamping bottom plate 212. In order to ensure that the connecting rod clamping member 22 can always clamp the frame bottom plate 11 of the support unit 1 during the transportation of the trolley 7, a plurality of connecting rod clamping members 22 may be provided, which are respectively provided at the two ends of the frame bottom plate 11 that are subjected to greater force along the movement direction of the trolley 7. Of course, connecting rod clamping members 22 may also be provided on all sides of the frame bottom plate 11, and the specific setting position of the connecting rod clamping member 22 may be adjusted according to the movement direction of the trolley 7.

[0045] In order to reduce the friction force to which the support unit 1 is subjected during the process of moving from the clamping unit 2 to the docking unit 3, the clamping unit 2 optionally further includes a ball lifting platform 23. The ball lifting platform 23 is disposed in the accommodating cavity of the clamping box 21, and balls are disposed on the ball lifting platform 23. A ball through hole is disposed on the clamping top plate 211, and the ball lifting platform 23 can be moved upward until the ball passes through the ball through hole so that the ball abuts against the support unit 1. It can be known that as long as the abutting contact between the ball and the bottom surface of the frame bottom plate 11 of the support unit 1 can be achieved so that the frame bottom plate 11 and the clamping top plate 211 are no longer in contact, the ball can be partially disposed through the ball through hole, or completely disposed through the ball through hole. Optionally, the driving component that drives the ball lift 23 to move up and down is an electric cylinder or a pneumatic cylinder, or a motor drives a worm gear to drive the ball lift 23 to move up and down, or an electric cylinder is used in conjunction with a motor to drive a worm gear to achieve dual drive of the ball lift 23 to ensure the stability of the movement of the ball lift 23.

[0046] In order to quickly and smoothly transfer the support unit 1 from the clamping unit 2 to the stationary unit 4 to achieve observation and hazard treatment of the battery pack after the collision, the docking unit 3 optionally includes a docking platform, and a docking conveyor belt 31 is provided on the docking platform to support and transport the support unit 1. Optionally, the docking unit 3 also includes a traction assembly 32, the traction assembly 32 includes a first traction slide rail 322 and a traction claw 321 provided on the first traction slide rail 322, and a traction column is provided on the support unit 1. The traction claw 321 can lock the traction column and slide along the first traction slide rail 322 to pull the support unit 1 to the docking unit 3. The length direction of the first traction slide rail 322 is consistent with the direction from the clamping unit 2 to the stationary unit 4. Optionally, the traction claw 321 includes a horizontally arranged L-shaped fixing rod, and the L-shaped fixing rod includes a first rod and a second rod connected vertically. Among them, the second rod is used to hang the traction column and pull the traction column. Optionally, the traction claw 321 also includes a reinforcing rib to improve the structural strength of the traction claw 321. Optionally, the reinforcing rib includes a third rod parallel to the first rod, one end of the third rod is vertically connected to the second rod, and the reinforcing rib also includes an inclined rod connecting the first rod and the second rod.

[0047] Optionally, in addition to being able to move along the first traction rail 322, the traction claw 321 can also move up and down. During the traction process, the traction claw 321 first moves up to a position that exceeds the height of the traction column, then moves horizontally to the rear side of the traction column and then moves down, so that the second rod can hang on the traction column. Optionally, the traction claw 321 can also be configured to be able to move in a direction perpendicular to the first traction rail 322 on a horizontal plane, first move to the side of the traction column, then move along the direction of the first traction rail 322 to the rear side of the traction column, and then move in the opposite direction perpendicular to the first traction rail 322, so that the traction claw 321 can also hang on the traction column. This embodiment uses the second setting method, and the traction assembly 32 includes a second traction rail, and the length direction of the second traction rail is perpendicular to the first traction rail 322. The traction assembly 32 further includes a first traction slider and a second traction slider. The first traction slider cooperates with the first traction slide rail 322, that is, the first traction slider moves along the first traction slide rail 322, and the second traction slider cooperates with the second traction slide rail, that is, the second traction slider moves along the second traction slide rail. The first traction slider is fixedly connected to the second traction slide rail, and the second traction slider is fixedly connected to the traction claw 321. Optionally, the traction assembly 32 further includes a first traction drive 323 and a second traction drive. The first traction drive 323 drives the movement of the first traction slider, and the second traction drive drives the movement of the second traction slider. Optionally, the first traction drive 323 and the second traction drive are both cylinders. Optionally, two sets of traction assemblies 32 are provided in this embodiment to reduce the force on one traction claw 321.

[0048] In order to make the height of the docking platform adjustable to adapt to the height of the trolley 7 and the height of the stationary platform, the docking unit 3 optionally further includes a lifting frame 33, which is used to support the lifting of the docking platform, that is, to support the lifting of the docking conveyor belt 31. Optionally, the lifting frame 33 has a self-locking function.

[0049] In order to make the position of the docking platform on the horizontal plane flexibly adjustable to adapt to the positions of the clamping platform and the static platform, optionally, a docking horizontal slide rail is also provided on the mobile frame 5, and the docking unit 3 also includes a docking slider 35 arranged at the bottom, and the docking slider 35 can move on the docking horizontal slide rail.

[0050] Optionally, the docking unit 3 further includes a position tracking and monitoring sensor and a docking controller. The position tracking and monitoring sensor is used to track the position of the trolley 7, the position tracking and monitoring sensor is communicatively connected to the docking controller, and the position tracking and monitoring sensor can transmit an electrical signal of the position of the trolley 7 to the docking controller, and the docking controller can control the mobile frame 5 according to the electrical signal of the position of the trolley 7, so that the mobile frame 5 moves to the trolley 7.

[0051] Optionally, a stationary conveyor belt 41 is provided on the stationary platform to support and convey the support unit 1. In order to realize the up and down movement of the stationary platform, that is, to ensure that the stationary platform can quickly move down into the coolant tank 44, optionally, a stationary lifting slide rail is provided on the mobile frame 5, and the stationary unit 4 includes a stationary frame 42 and a lifting slider 43 connected thereto, and the lifting slider 43 can move on the stationary lifting slide rail, and the stationary platform is provided on the stationary frame 42. Optionally, a worm gear is driven by a motor to drive the stationary lifting slide rail to move up and down to ensure the load-bearing capacity.

[0052] When the real-time temperature of the battery pack exceeds the preset temperature and is about to burn or even explode, the battery pack needs to be quickly moved to the coolant tank 44 for cooling and isolating from oxygen. Optionally, the stationary unit 4 also includes a temperature sensor and a stationary controller. The temperature sensor is used to measure the real-time temperature of the battery pack. The temperature sensor is connected to the stationary controller so that the temperature sensor transmits the real-time temperature of the battery pack to the stationary controller. The stationary controller is connected to the motor that drives the stationary frame 42 to move up and down. When the real-time temperature of the battery pack exceeds the preset temperature, the stationary controller can control the motor to run and drive the stationary platform to move down into the coolant tank 44.

[0053] Optionally, the stationary unit 4 further includes an explosion-proof top 45 disposed above the stationary conveyor belt 41 to prevent the top of the equipment above from burning when the battery pack explodes. In order to collect and purify the smoke generated when the battery pack burns or even explodes, a smoke exhaust port 451 is optionally provided on the explosion-proof top 45, and the battery pack collision test safety protection device further includes a smoke collection and purification device 6, which is connected to the smoke exhaust port 451.

[0054] Optionally, the mobile rack 5 includes a docking rack body 51 and a stationary rack body 53, the docking rack body 51 is used to support the docking unit 3, and the stationary rack body 53 is used to support the stationary unit 4. It can be seen that the docking horizontal slide rail is arranged on the docking rack body 51, and the stationary lifting slide rail is arranged on the stationary rack body 53.

[0055] In order to enable the mobile frame 5 to move freely to approach the clamping platform and to remain stable during the movement of the support unit 1 , optionally, a moving wheel 54 and supporting feet are provided at the bottom of the mobile frame 5 .

[0056] The working principle of the battery pack collision test safety protection device is as follows:

[0057] The trolley 7 carries the clamping unit 2, and the support unit 1 containing the test battery pack is fixed on the clamping unit 2. The trolley 7 runs along the trolley rail 8 to perform a collision test on the battery pack. After the collision test is completed, the docking unit 3 starts to track the position of the trolley 7 and controls the mobile frame 5 to move to the trolley 7. The connecting rod clamping member 22 of the clamping unit 2 releases the frame bottom plate 11 of the support unit 1, and at the same time, the traction claw 321 of the docking unit 3 pulls the traction column on the support unit 1 to pull the support unit 1 to the docking unit 3. When the support unit 1 is partially moved to the docking unit 3, the docking conveyor belt 31 acts on the support unit 1 at the same time to transfer it all to the docking unit 3. Then the lifting frame 33 and the docking slider 35 of the docking unit 3 are respectively operated to adjust the position of the docking platform to correspond to the position of the static platform. Under the joint action of the docking conveyor belt 31 and the static conveyor belt 41, the support unit 1 is transported to the static platform of the static unit 4. The temperature sensor of the static unit 4 monitors the real-time temperature of the battery pack and transmits the real-time temperature of the battery pack to the static controller. The static controller is connected to the motor that drives the static frame 42 to move up and down. When the real-time temperature of the battery pack exceeds the preset temperature, the static controller can control the motor to drive the static platform to move down into the coolant tank 44. The battery pack is immersed in the coolant to isolate oxygen and reduce the temperature of the battery pack, thereby realizing the automated process of safe handling of damaged battery packs.

[0058] The battery pack collision test safety protection device can not only increase the speed of safe handling of damaged batteries and reduce the risk of battery pack combustion or even explosion, but also improve work efficiency and ensure the personal safety of technicians.

[0059] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A battery pack collision test safety protection device, characterized in that: include: A support unit (1), the support unit (1) being used to fix the battery pack; A clamping unit (2), the clamping unit (2) being arranged on a trolley (7), the trolley (7) being used to carry the battery pack for a collision test, the clamping unit (2) being capable of supporting the support unit (1) and being capable of clamping or releasing the support unit (1); Mobile rack (5); A docking unit (3), the docking unit (3) being arranged on the mobile frame (5), the docking unit (3) being capable of tracking the position of the trolley (7) and controlling the mobile frame (5) to move to the trolley (7), and the docking unit (3) being capable of pulling and transferring the supporting unit (1) to the docking unit (3); A stationary unit (4), the stationary unit (4) being arranged on the mobile frame (5), the stationary unit (4) comprising a stationary platform and a cooling liquid tank (44), the docking unit (3) being capable of transferring the support unit (1) to the stationary platform, the stationary unit (4) being capable of monitoring the real-time temperature of the battery pack, and when the real-time temperature exceeds a preset temperature, the stationary unit (4) being capable of controlling the stationary platform to move into the cooling liquid tank (44) so ​​as to reduce the temperature of the battery pack; The support unit (1) comprises, from top to bottom, an upper frame (12), a lower frame (13) and a frame bottom plate (11), and the upper frame (12), the lower frame (13) and the frame bottom plate (11) are fixedly connected.

2. The battery pack collision test safety protection device according to claim 1, characterized in that: The clamping unit (2) comprises a connecting rod clamping piece (22), and the connecting rod clamping piece (22) is used to clamp or release the supporting unit (1).

3. The battery pack collision test safety protection device according to claim 1, characterized in that: The clamping unit (2) further comprises a clamping top plate (211) and a ball lifting platform (23); the clamping top plate (211) is used to support the support unit (1); a ball through hole is provided on the clamping top plate (211); a ball is provided on the ball lifting platform (23); the ball lifting platform (23) is capable of moving upward until the ball passes through the ball through hole, so that the ball abuts against the support unit (1).

4. The battery pack collision test safety protection device according to claim 1, characterized in that: The docking unit (3) comprises a docking conveyor belt (31) for supporting and conveying the supporting unit (1); And / or, a stationary conveyor belt (41) is arranged on the stationary platform to support and convey the supporting unit (1).

5. The battery pack collision test safety protection device according to claim 1, characterized in that: The docking unit (3) further comprises a traction assembly (32), the traction assembly (32) comprising a first traction rail (322) and a traction claw (321) arranged on the first traction rail (322); a traction column is arranged on the support unit (1); the traction claw (321) can lock the traction column and slide along the first traction rail (322) to pull the support unit (1) onto the docking unit (3).

6. The battery pack collision test safety protection device according to claim 4, characterized in that: The docking unit (3) further comprises a lifting frame (33), wherein the lifting frame (33) is used to support the lifting of the docking conveyor belt (31).

7. The battery pack collision test safety protection device according to claim 1, characterized in that: The mobile frame (5) is provided with a stationary lifting slide rail, and the stationary unit (4) comprises a stationary frame (42) and a lifting slide block (43) connected to each other, and the lifting slide block (43) can move on the stationary lifting slide rail.

8. The battery pack collision test safety protection device according to claim 4, characterized in that: The stationary unit (4) further comprises an explosion-proof roof (45) arranged above the stationary conveyor belt (41).

9. The battery pack collision test safety protection device according to claim 8, characterized in that: The explosion-proof top (45) is provided with a smoke exhaust port (451), and the battery pack collision test safety protection device further comprises a smoke collection and purification device (6), and the smoke collection and purification device (6) is connected to the smoke exhaust port (451).

10. The battery pack collision test safety protection device according to any one of claims 1 to 9, characterized in that: The mobile frame (5) is also provided with a docking horizontal slide rail, and the docking unit (3) also includes a docking slider (35) arranged at the bottom, and the docking slider (35) can move on the docking horizontal slide rail.

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