A battery pack for new energy vehicles that is easy to disassemble and fix

Abstract

The present invention relates to the field of vehicle battery technology, specifically a battery pack for new energy vehicles that is easy to disassemble and fix, including a quick-release shell and a battery pack. The battery pack is arranged in the quick-release shell, and further includes: an unlocking mechanism installed in the quick-release shell; a triggering mechanism installed in the quick-release shell for triggering the unlocking mechanism when the battery pack burns; a pushing mechanism installed in the quick-release shell and located on the battery pack for pushing the battery pack out when burning; a fire extinguishing mechanism installed on the unlocking mechanism for extinguishing the quick-release shell when pushing the battery pack; the unlocking mechanism includes a support component a, a support component b, a limit component a, a limit component b, a locking component, a rod 1, a ramp block 1, and a ramp block 2. The present invention pushes the battery pack away from the bottom of the quick-release shell and away from the bottom of the car, so that when the battery pack thermally runs away and burns, the battery pack is pushed away to avoid burning at the bottom of the car, which would cause the entire car to burn.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle batteries, and in particular to a battery pack for new energy vehicles that is easy to disassemble and fix. Background Art

[0002] The battery pack is one of the power units of new energy vehicles and one of the core components of new energy vehicles. During daily use, the battery releases electrical energy to drive the new energy vehicle.

[0003] Chinese patent application number CN208630342U discloses a battery mounting bracket for electric vehicles, comprising an upper cover, a support plate, a lower retaining ring, and a bracket. This prior art design offers a rational structure and convenient installation. The battery is suspended and securely fastened by the upper cover and support plate, without damaging the battery housing. Spacing is provided between the batteries for heat dissipation, effectively resolving the inconvenience inherent in prior art battery mounting brackets for electric vehicles.

[0004] However, at present, when a battery pack is hit or charged, it may suffer thermal runaway and fire due to the battery pack's own instability. At this time, the battery pack is still installed in the car. As the battery pack continues to burn, the flames may burn the entire car, causing a major accident. Summary of the Invention

[0005] The present invention aims to solve the problems existing in the background technology and to provide a battery pack for new energy vehicles that is easy to disassemble and fix.

[0006] The technical solution of the present invention is a battery pack for new energy vehicles that is easy to disassemble and fix, including a quick-release shell and a battery pack, wherein the battery pack is arranged in the quick-release shell, and further comprising:

[0007] an unlocking mechanism, which is mounted in the quick-release housing;

[0008] A trigger mechanism, which is installed in the quick-release housing and is used to trigger the unlocking mechanism when the battery pack burns;

[0009] A push-down mechanism, which is installed in the quick-release housing and located on the battery pack, is used to push the battery pack out during combustion;

[0010] A fire extinguishing mechanism, which is installed on the unlocking mechanism and is used to extinguish the fire of the quick-release shell when the battery pack is pushed;

[0011] The unlocking mechanism includes a support component a, a support component b, a limit component a, a limit component b, a locking component, a rod 1, an inclined plane block 1 and an inclined plane block 2; the rod 1 is installed on the movable end of the trigger component, the support component a is installed in the quick-release shell to support the battery pack, the limit component a for limiting the lateral movement of the support component a is installed inside the support component a, and the inclined plane block 1 pressed by the rod 1 is installed on the limit component a; the support component b is installed in the quick-release shell to support the battery pack, the limit component b for limiting the flipping of the support component b is installed inside the support component b, the inclined plane block 2 located on the moving path of the rod 1 is installed on the limit component b, and a locking component for locking the flipped support component b is provided in the support component b.

[0012] Preferably, the support assembly a comprises a second plate, a second elastic member and a third plate;

[0013] Plate 2 is installed in the quick-release shell, and elastic part 2 is installed on the inner side of the quick-release shell. Its other end is connected to plate 3 which is limited by limiting component a and supports the battery pack; rod 1 is separated from inclined block 1, limiting component a releases the limit on plate 3, and elastic part 2 pulls plate 3 to move horizontally toward elastic part 2, thereby releasing the support for the battery pack.

[0014] Preferably, the support assembly b comprises an elastic member three, a plate four, a plate five, a rectangular block and a pulley;

[0015] Elastic part three is installed in the quick-release shell, and its other end is connected to plate four. Plate four rotates inside and is connected to plate five that supports the battery pack. Rectangular blocks are installed on the rotating shafts on both sides of plate five. The rectangular blocks are limited by limiting assembly b. Pulleys are installed on plate four and support assembly a.

[0016] Preferably, the limiting assembly a comprises a spring 1 and a rod 2;

[0017] Spring 1 is installed in plate 2, and its other end is connected to inclined plane block 1. Rod 2 is installed at the bottom end of inclined plane block 1 to limit the horizontal movement of plate 3; rod 1 moves and separates from inclined plane block 1, and spring 1 drives inclined plane block 1 and rod 2 to rise, releasing the limit on plate 3.

[0018] Preferably, the limiting component b includes a second spring and a limiting frame;

[0019] Spring 2 is installed in plate 4, and its other end is connected to inclined block 2. A limit frame is installed at the bottom end of inclined block 2, and the limit frame fits the rectangular block; rod 1 moves to press inclined block 2, and the limit frame descends to release the limit on the rectangular block, and plate 5 flips over by its own weight.

[0020] Preferably, the locking assembly includes a spring three, a rod three and a socket;

[0021] The jack is provided on the plate five, the spring three is installed in the plate four, and the other end thereof is connected to the rod three; after the plate five is turned over, the elasticity of the spring three drives the rod three to descend and be inserted into the jack.

[0022] Preferably, the trigger mechanism comprises an elastic member 1, a plate 1, a quick-burning strip and a ring 1;

[0023] Ring 1 is installed on support assembly a, elastic part 1 is installed in the quick-release shell, and its other end is connected to plate 1, and a quick-burning strip is connected to plate 1. Rod 1 is installed on both sides of plate 1, and the quick-burning strip passes through ring 1 and is connected to the quick-release shell. The quick-burning strip covers the battery pack; when the battery pack thermally runs away and catches fire, the flame burns the quick-burning strip, and the elasticity of elastic part 1 drives plate 1 to move.

[0024] Preferably, the push-down mechanism comprises a cylinder five, a spring five, a push-down rod and an insertion rod;

[0025] Cylinder five is installed in the quick-release shell, spring five is installed on cylinder five and sleeved on the outer circumference of cylinder five, the other end of spring five is connected to the down-pressing rod, the insertion rod is installed on the movable end of the trigger assembly and inserted into cylinder five and the down-pressing rod to limit the spring five and the down-pressing rod.

[0026] Preferably, the fire extinguishing mechanism includes a first cylinder, a round tube, a second cylinder, a fourth spring, a blocking block, a fourth rod, a third cylinder, a telescopic tube, a control valve, a nozzle, and a flip unit;

[0027] Cylinder one is installed in the quick-release shell, and a control valve for replenishing compressed gas is installed on it; cylinder three is vertically installed in the quick-release shell, and the two ends of the circular tube pass through cylinder one and are located at the top of the inner cavity of cylinder three respectively; cylinder two is installed on the circular tube, and spring four is installed inside it, and the other end of spring four is connected to the blocking block, which is located at the connection between the circular tube and cylinder two, and the installation of the blocking block is limited by rod four of support component b; the bottom end of cylinder three passes through the telescopic tube, and the other end of the telescopic tube is connected to the nozzle; in the initial state, the nozzle faces cylinder three.

[0028] Preferably, the turning unit comprises a cylinder four, a coil spring, a rotating block and a ring two;

[0029] Cylinder four is installed in support component b, the coil spring is installed in cylinder four, the center of the coil spring is connected to the rotating block, ring two is installed on the rotating block, and the inside of ring two is connected to the nozzle; when support component b pushes the battery pack, the nozzle first extinguishes the fire inside the quick-release shell, and then after the telescopic tube is pulled to the longest state, the rotating block is pulled to flip so that the nozzle is directed towards the battery pack on the ground to extinguish the fire.

[0030] Compared with the prior art, the above technical solution of the present invention has the following beneficial technical effects: when the battery pack thermally runs away and burns, the fast-burning strip is burned off, and then the elasticity of the elastic part 1 pulls the plate 1 in the direction of the elastic part 1, thereby driving the rod 1 to move, and the rod 1 is separated from the inclined block 1. At this time, the elasticity of the spring 1 drives the rod 2 to rise, and the limit on the plate 3 is released, so that the elasticity of the elastic part 2 drives the plate 3 to move toward the elastic part 2, so that the plate 3 is separated from the bottom end of the battery pack.

[0031] The other end of rod one presses the inclined block two downward, thereby driving the limit frame to descend, so that the limit frame is separated from the rectangular block, and then plate five loses its limit, and then flips down by its own gravity, and then the elasticity of spring three drives rod three to descend and insert into the socket, limiting and locking the flipped plate five.

[0032] At the same time, the insertion rod is pulled out from the tube five and the lower pressure rod, releasing the limit of the tube five and the lower pressure rod, and then the elasticity of the spring five drives the lower pressure rod to descend, thereby pushing the battery pack downward to the bottom of the quick-release shell; then the elasticity of the elastic part three drives the bottom end plate five of the plate four to move, pushing the battery pack away from the bottom of the quick-release shell and away from the bottom of the car, so that when the battery pack thermally runs away and burns, the battery pack is pushed away to avoid burning at the bottom of the car, causing the entire car to burn.

[0033] When plate four moves, it separates from rod four, thereby driving the blocking block to leave the connection between the circular tube and tube two, so that the compressed gas in the inner cavity of tube one enters the inner cavity of tube three along the circular tube, and then pushes the fire extinguishing powder in the inner cavity of tube three into the telescopic tube, and then the fire extinguishing powder is sprayed from the nozzle into the quick-release shell along the telescopic tube. When plate four moves to the maximum distance, the telescopic tube is straightened, and then the nozzle is pulled to drive the rotating block to rotate, so that the nozzle is directed toward the battery pack pushed out from the bottom of the car, thereby spraying fire extinguishing powder into the battery pack to extinguish the fire. In this way, in the process of pushing the battery pack away, the fire in the quick-release shell is extinguished first to avoid fire in the quick-release shell, and then the battery pack is preliminarily extinguished. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the structure of the present invention;

[0035] Figure 2 This is a schematic diagram of the internal structure of the quick-release case proposed by the present invention;

[0036] Figure 3 The present invention proposes Figure 2 A in the middle is an enlarged schematic diagram;

[0037] Figure 4 This is a schematic structural diagram of the tube 5 and the down-pressing rod proposed in the present invention;

[0038] Figure 5 The present invention proposes Figure 4 The enlarged schematic diagram of point B in the middle;

[0039] Figure 6 The present invention proposes Figure 4 The enlarged schematic diagram of point C in the middle;

[0040] Figure 7 This is a schematic structural diagram of the elastic member 3 and the plate 4 proposed in the present invention;

[0041] Figure 8The present invention proposes Figure 7 The enlarged schematic diagram of point D in the middle;

[0042] Figure 9 This is a schematic diagram of the structure of the tube 1 and the tube 3 proposed in the present invention;

[0043] Figure 10 The present invention proposes Figure 9 The enlarged schematic diagram at E in the middle;

[0044] Figure 11 This is a schematic diagram of a fifth board provided with a jack according to the present invention.

[0045] Figure 1: 1. Quick-release housing; 2. Elastic member 1; 3. Plate 1; 4. Fast-burning strip; 5. Plate 2; 6. Ring 1; 7. Rod 1; 8. Elastic member 2; 9. Plate 3; 10. Spring 1; 11. Inclined block 1; 12. Rod 2; 13. Elastic member 3; 14. Plate 4; 15. Spring 2; 16. Inclined block 2; 17. Limiting frame; 18. Plate 5; 19. Rectangular block; 20. Spring 3; 21. Rod three; 22. Socket; 23. Cylinder one; 24. Round tube; 25. Cylinder two; 26. Spring four; 27. Blocking block; 28. Rod four; 29. ​​Cylinder three; 30. Telescopic tube; 31. Cylinder four; 32. Coil spring; 33. Cylinder five; 34. Rotating block; 35. Control valve; 36. Ring two; 37. Nozzle; 38. Spring five; 39. Press-down rod; 40. Insert rod; 41. Battery pack; 42. Pulley. DETAILED DESCRIPTION

[0046] Example 1, as Figures 1-11 As shown, the present invention proposes a battery pack for a new energy vehicle that is easy to disassemble and fix, including an unlocking mechanism, a trigger mechanism, a push-down mechanism, a fire extinguishing mechanism, a quick-release shell 1 and a battery pack 41, and the battery pack 41 is arranged in the quick-release shell 1.

[0047] A threaded hole is provided on the outside of the quick-release housing 1 , and the quick-release housing 1 can be quickly installed in the car through the threaded hole.

[0048] The battery pack 41 is inserted into the quick-release housing 1 , and the quick-release housing 1 is electrically connected to the vehicle.

[0049] The unlocking mechanism is installed in the quick release housing 1;

[0050] The trigger mechanism is installed in the quick-release housing 1 and is used to trigger the unlocking mechanism when the battery pack 41 burns;

[0051] The push-down mechanism is installed in the quick-release housing 1 and is located on the battery pack 41 for pushing the battery pack 41 out during combustion;

[0052] The fire extinguishing mechanism is installed on the unlocking mechanism and is used to extinguish the fire of the quick-release housing 1 when the battery pack 41 is pushed;

[0053] The unlocking mechanism includes a support component a, a support component b, a limit component a, a limit component b, a locking component, a rod 7, an inclined plane block 11 and an inclined plane block 2 16; the rod 17 is installed on the movable end of the trigger component, the support component a is installed in the quick-release shell 1 to support the battery pack 41, and the limit component a for limiting the lateral movement of the support component a is installed inside the support component a, and the inclined plane block 11 pressed by the rod 17 is installed on the limit component a; the support component b is installed in the quick-release shell 1 for supporting the battery pack 41, and the limit component b for limiting the flipping of the support component b is installed inside the support component b, and the inclined plane block 2 16 located on the moving path of the rod 17 is installed on the limit component b, and a locking component for locking the flipped support component b is provided in the support component b.

[0054] When the battery pack 41 thermally runs away and catches fire, the trigger mechanism drives the rod 1 7 to leave the inclined plane block 1 11 and squeeze the inclined plane block 2 16 to move downward, the inclined plane block 11 rises, the movable end of the support component a moves laterally, and the support component b flips over. Through the movement of the support components a and b, the limit on both sides of the bottom of the battery pack 41 is released, and then the battery pack 41 is pushed out of the quick-release shell 1 through the push-down mechanism, and then the support component b drives the battery pack 41 to leave the bottom of the quick-release shell 1.

[0055] Support assembly a includes plate 2 5, elastic member 2 8 and plate 3 9;

[0056] Plate 2 5 is installed in the quick-release housing 1, and elastic member 2 8 is installed on the inner side of the quick-release housing 1, with its other end connected to plate 3 9 which is limited by limiting assembly a and supports the battery pack 41; rod 1 7 is separated from inclined block 1 11, limiting assembly a releases the limit on plate 3 9, and elastic member 2 8 pulls plate 3 9 to move horizontally toward elastic member 2 8, releasing the support for the battery pack 41.

[0057] A circular hole is provided on the plate three 9, and the rod two 12 is inserted into the circular hole to limit and lock the plate three 9.

[0058] Support assembly b includes elastic member three 13, plate four 14, plate five 18, rectangular block 19 and pulley 42;

[0059] Elastic member three 13 is installed in the quick-release shell 1, and its other end is connected to plate four 14. Plate four 14 is rotatably connected to plate five 18 that supports the battery pack 41. Rectangular blocks 19 are installed on the rotating shafts on both sides of plate five 18. The rectangular blocks 19 are limited by the limiting component b. Pulleys 42 are installed on both plate four 14 and support component a.

[0060] When the push-down mechanism pushes the battery pack 41 down and out of the quick-release housing 1, the battery pack 41 can be lowered by the sliding property of the pulley 42, thereby preventing the elastic member 3 13 from elastically pushing the plate 4 14 so that the battery pack 41 cannot be lowered.

[0061] The limiting component a includes a spring 10 and a rod 2 12;

[0062] Spring 10 is installed in plate 2 5, and its other end is connected to inclined block 11. The bottom end of inclined block 11 is installed with rod 2 12 for limiting the lateral movement of plate 3 9; rod 17 moves and separates from inclined block 11, and spring 10 drives inclined block 11 and rod 2 12 to rise, releasing the limit on plate 3 9.

[0063] The limiting component b includes a spring 2 15 and a limiting frame 17;

[0064] Spring 2 15 is installed in plate 4 14, and its other end is connected to inclined block 2 16. A limit frame 17 is installed at the bottom end of inclined block 2 16, and the limit frame 17 is in contact with the rectangular block 19; rod 1 7 moves to press inclined block 2 16, and the limit frame 17 descends to release the limit on the rectangular block 19, and plate 5 18 flips over by its own weight.

[0065] After flipping, the fourth plate 14 and the fifth plate 18 are transformed from being L-shaped as a whole into straight plates.

[0066] A rectangular groove is provided at the bottom end of the inner cavity of plate four 14, and the rectangular block 19 and the limit frame 17 are both located in the rectangular groove.

[0067] The locking assembly includes a spring 3 20, a rod 3 21 and a socket 22;

[0068] The jack 22 is provided on the plate 5 18 , the spring 3 20 is installed in the plate 4 14 , and its other end is connected to the rod 3 21 ; after the plate 5 18 is turned over, the elasticity of the spring 3 20 drives the rod 3 21 to descend and be inserted into the jack 22 .

[0069] The trigger mechanism includes an elastic member 2, a plate 3, a fast-burning strip 4 and a ring 6;

[0070] Ring 1-6 is installed on the support assembly a, and elastic member 1-2 is installed in the quick-release shell 1. Its other end is connected to plate 1-3, and the plate 3 is connected to the fast-burning strip 4. Rods 1-7 are installed on both sides of the plate 3. The fast-burning strip 4 passes through ring 1-6 and is connected to the quick-release shell 1. The fast-burning strip 4 covers the battery pack 41; when the battery pack 41 thermally runs away and catches fire, the flame burns the fast-burning strip 4, and the elasticity of elastic member 2 drives the plate 3 to move.

[0071] The fast burning strip 4 is made of fast burning material.

[0072] Example 2, as Figure 2 and Figure 4 As shown, the present invention proposes a battery pack for a new energy vehicle that is easy to disassemble and fix. Compared with the first embodiment, the push-down mechanism of this embodiment includes a fifth cylinder 33, a fifth spring 38, a push-down rod 39 and an insertion rod 40;

[0073] Cylinder 5 33 is installed in the quick-release housing 1, spring 5 38 is installed on cylinder 5 33 and sleeved on the outer circumference of cylinder 5 33, the other end of spring 5 38 is connected to the downward pressure rod 39, and the insertion rod 40 is installed on the movable end of the trigger assembly and inserted into cylinder 5 33 and the downward pressure rod 39 to limit the spring 5 38 and the downward pressure rod 39.

[0074] Example 3, as Figure 2 、 Figure 3 and Figure 7-10 As shown, the present invention proposes a battery pack for a new energy vehicle that is easy to disassemble and fix. Compared with the second embodiment, the fire extinguishing mechanism of this embodiment includes a cylinder 1 23, a circular tube 24, a cylinder 25, a spring 4 26, a blocking block 27, a rod 4 28, a cylinder 3 29, a telescopic tube 30, a control valve 35, a nozzle 37 and a flip unit;

[0075] Cylinder 1 23 is filled with compressed gas, which can be carbon dioxide or nitrogen.

[0076] The third cylinder 29 is filled with fire extinguishing powder, which can be ammonium phosphate or the like.

[0077] Cylinder one 23 is installed in the quick-release shell 1, and a control valve 35 for replenishing compressed gas is installed on it; cylinder three 29 is vertically installed in the quick-release shell 1, and the two ends of the circular tube 24 pass through cylinder one 23 and are located at the top of the inner cavity of cylinder three 29 respectively; cylinder two 25 is installed on the circular tube 24, and a spring four 26 is installed therein, and the other end of the spring four 26 is connected to the blocking block 27, which is located at the connection between the circular tube 24 and cylinder two 25, and the installation of the blocking block 27 is limited by the rod four 28 of the support component b; the bottom end of cylinder three 29 passes through the telescopic tube 30, and the other end of the telescopic tube 30 is connected to the nozzle 37; in the initial state, the nozzle 37 faces cylinder three 29.

[0078] When the air pressure in the inner cavity of cylinder 1 23 decreases, compressed gas can be added to cylinder 1 23 through control valve 35 to maintain the air pressure in cylinder 1 23 .

[0079] The flip unit includes a cylinder 4 31, a coil spring 32, a rotating block 34 and a ring 2 36;

[0080] Cylinder four 31 is installed in support assembly b, and coil spring 32 is installed in cylinder four 31. The center of coil spring 32 is connected to rotating block 34, and ring two 36 is installed on rotating block 34. Ring two 36 is connected to the inside of ring two 36. When support assembly b pushes battery pack 41, nozzle 37 first extinguishes the fire inside quick-release shell 1. Then, after the telescopic tube 30 is pulled to the longest state, it pulls the rotating block 34 to flip, so that the nozzle 37 is directed towards the battery pack 41 on the ground to extinguish the fire.

[0081] In summary, in the present invention, in the initial state, the battery pack 41 is plugged into the quick-release housing 1 , and the battery pack 41 is supported and fixed by the third plate 9 and the fifth plate 18 .

[0082] When the battery pack 41 burns due to thermal runaway, the fast-burning strip 4 will be burned off. Due to the fast-burning property of the fast-burning strip 4, when one part of the battery pack 41 burns, the entire fast-burning strip 4 will be burned off. At this time, the elasticity of the elastic part 2 drives the plate 3 to move toward the elastic part 2, thereby driving the rod 7 to move, and the rod 7 is separated from the top of the inclined block 11. At this time, the elasticity of the spring 10 drives the rod 2 12 to rise and be pulled out of the plate 3 9, thereby releasing the limit of the plate 3 9, and then the elasticity of the elastic part 2 8 drives the plate 3 9 to move in the direction of the elastic part 2 8 and leave the bottom of the battery pack 41.

[0083] At the same time, rod 1 7 is squeezed against inclined surface block 2 16, pressing inclined surface block 2 16 downward, thereby driving limit frame 17 to descend, so that limit frame 17 is separated from rectangular block 19, and then plate 5 18 flips over by its own weight. When the socket 22 provided on plate 5 18 is located at rod 3 21, the elasticity of spring 3 20 drives rod 3 21 to be inserted into socket 22 to lock plate 5 18 in a limited position.

[0084] At the same time, plate 1 3 drives the insertion rod 40 to be pulled out from tube 5 33 and the lower pressure rod 39, releasing the limit of the lower pressure rod 39 and tube 5 33, and then the elasticity of spring 5 38 drives the lower pressure rod 39 to descend, pushing the battery pack 41 to descend to the bottom of the quick-release shell 1.

[0085] Then, the elasticity of the elastic member three 13 drives the plate four 14 and the plate five 18 to push the battery pack 41 located at the bottom of the car to one side of the car. During the pushing process, the rod four 28 separates from the plate four 14. At this time, the blocking block 27 is driven by the elasticity of the spring four 26 to leave the connection between the circular tube 24 and the tube two 25. Then, the compressed gas in the inner cavity of the tube one 23 enters the tube three 29 along the circular tube 24, thereby pushing the fire extinguishing powder in the tube three 29 and the telescopic tube 30, causing it to be ejected from the nozzle 37. The nozzle 37 sprays the fire extinguishing powder into the quick-release shell 1 to prevent fire in the quick-release shell 1.

[0086] When plate four 14 moves to the farthest point, the telescopic tube 30 is straightened, thereby pulling the nozzle 37, and then driving the rotating block 34 to flip, thereby driving the nozzle 37 to flip, and toward the battery pack 41 on the ground, and then spraying the fire extinguishing powder onto the battery pack 41 to perform preliminary fire extinguishing on the burning battery pack 41.

[0087] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A battery pack for a new energy vehicle that is easy to disassemble and fix, comprising a quick-release housing (1) and a battery pack (41), wherein the battery pack (41) is arranged in the quick-release housing (1), and is characterized in that: Also includes: An unlocking mechanism, which is mounted in the quick-release housing (1); A trigger mechanism, which is installed in the quick-release housing (1) and is used to trigger the unlocking mechanism when the battery pack (41) burns; A push-down mechanism, which is installed in the quick-release housing (1) and located on the battery pack (41) and is used to push the battery pack (41) out during combustion; a fire extinguishing mechanism mounted on the unlocking mechanism and used to extinguish the quick-release housing (1) when pushing the battery pack (41); The unlocking mechanism includes a support component a, a support component b, a limit component a, a limit component b, a locking component, a rod 1 (7), an inclined plane block 1 (11) and an inclined plane block 2 (16); the rod 1 (7) is installed on the movable end of the trigger component, the support component a is installed in the quick-release shell (1) to support the battery pack (41), the limit component a for limiting the lateral movement of the support component a is installed therein, and the inclined plane block 1 (11) pressed by the rod 1 (7) is installed on the limit component a; the support component b is installed in the quick-release shell (1) for supporting the battery pack (41), the limit component b for limiting the flipping of the support component b is installed therein, the inclined plane block 2 (16) located on the moving path of the rod 1 (7) is installed on the limit component b, and a locking component for locking the flipped support component b is provided in the support component b; Support assembly b includes elastic member three (13), plate four (14), plate five (18), rectangular block (19) and pulley (42); Elastic member three (13) is installed in the quick-release housing (1), and its other end is connected to plate four (14). Plate four (14) is rotatably connected to plate five (18) supporting the battery pack (41). Rectangular blocks (19) are installed on the rotating shafts on both sides of plate five (18), and the rectangular blocks (19) are limited by the limiting component b; pulleys (42) are installed on both plate four (14) and the supporting component a. The limiting component b includes a spring 2 (15) and a limiting frame (17); Spring 2 (15) is installed in plate 4 (14), and its other end is connected to inclined block 2 (16). A limit frame (17) is installed at the bottom end of inclined block 2 (16), and the limit frame (17) is fitted with the rectangular block (19); rod 1 (7) moves to press inclined block 2 (16), and the limit frame (17) descends to release the limit on the rectangular block (19), and plate 5 (18) flips over by its own weight; The locking assembly includes a spring three (20), a rod three (21) and a socket (22); The jack (22) is provided on the plate five (18), the spring three (20) is installed in the plate four (14), and the other end thereof is connected to the rod three (21); after the plate five (18) is turned over, the elasticity of the spring three (20) drives the rod three (21) to descend and be inserted into the jack (22).

2. The battery pack for new energy vehicles that is easy to disassemble and fix according to claim 1, characterized in that: Support assembly a includes plate 2 (5), elastic member 2 (8) and plate 3 (9); The second plate (5) is installed in the quick-release shell (1), and the second elastic member (8) is installed on the inner side of the quick-release shell (1). The other end of the second elastic member (8) is connected to the third plate (9) which is limited by the limiting component a and supports the battery pack (41). The first rod (7) is separated from the first inclined block (11), the limiting component a releases the limit on the third plate (9), and the second elastic member (8) pulls the third plate (9) to move horizontally toward the second elastic member (8), thereby releasing the support for the battery pack (41).

3. The battery pack for new energy vehicles that is easy to disassemble and fix according to claim 2, characterized in that: The limiting assembly a includes a spring 1 (10) and a rod 2 (12); Spring 1 (10) is installed in plate 2 (5), and its other end is connected to inclined plane block 1 (11). The bottom end of inclined plane block 1 (11) is installed with rod 2 (12) for limiting the horizontal movement of plate 3 (9); rod 1 (7) moves and separates from inclined plane block 1 (11), and spring 1 (10) drives inclined plane block 1 (11) and rod 2 (12) to rise, thereby releasing the limit on plate 3 (9).

4. The battery pack for new energy vehicles that is easy to disassemble and fix according to claim 1, characterized in that: The trigger mechanism comprises an elastic member (2), a plate (3), a quick-burning strip (4) and a ring (6); Ring 1 (6) is installed on the support assembly a, elastic member 1 (2) is installed in the quick-install shell (1), and the other end thereof is connected to plate 1 (3), and the plate 1 (3) is connected to the fast-burning strip (4). Rods 1 (7) are installed on both sides of the plate 1 (3), and the fast-burning strip (4) passes through ring 1 (6) and is connected to the quick-install shell (1). The fast-burning strip (4) covers the battery pack (41); when the battery pack (41) thermally runs away and catches fire, after the flame burns the fast-burning strip (4), the elasticity of the elastic member 1 (2) drives the plate 1 (3) to move.

5. The battery pack for new energy vehicles that is easy to disassemble and fix according to claim 1, characterized in that: The push-down mechanism includes a cylinder five (33), a spring five (38), a push-down rod (39) and an insertion rod (40); The cylinder five (33) is installed in the quick-release shell (1), the spring five (38) is installed on the cylinder five (33) and is sleeved on the outer periphery of the cylinder five (33), the other end of the spring five (38) is connected to the down-pressing rod (39), the insertion rod (40) is installed on the movable end of the trigger assembly, and is inserted into the cylinder five (33) and the down-pressing rod (39) to limit the spring five (38) and the down-pressing rod (39).

6. The battery pack for new energy vehicles that is easy to disassemble and fix according to claim 1, characterized in that: The fire extinguishing mechanism includes a cylinder 1 (23), a circular tube (24), a cylinder 2 (25), a spring 4 (26), a blocking block (27), a rod 4 (28), a cylinder 3 (29), a telescopic tube (30), a control valve (35), a nozzle (37) and a flip unit; Cylinder one (23) is installed in the quick-release housing (1), and a control valve (35) for replenishing compressed gas is installed on it; cylinder three (29) is vertically installed in the quick-release housing (1), and the two ends of the circular tube (24) respectively pass through cylinder one (23) and are located at the top of the inner cavity of cylinder three (29); cylinder two (25) is installed on the circular tube (24), and a spring four (26) is installed therein, and the other end of the spring four (26) is connected to a blocking block (27), which is located at the connection between the circular tube (24) and cylinder two (25), and the installation of the blocking block (27) is limited by a rod four (28) of a support assembly b; the bottom end of cylinder three (29) passes through the telescopic tube (30), and the other end of the telescopic tube (30) is connected to the nozzle (37); in the initial state, the nozzle (37) faces cylinder three (29).

7. The battery pack for new energy vehicles that is easy to disassemble and fix according to claim 6, characterized in that: The turning unit includes a cylinder four (31), a coil spring (32), a rotating block (34) and a ring two (36); The cylinder four (31) is installed in the support assembly b, the coil spring (32) is installed in the cylinder four (31), the center of the coil spring (32) is connected to the rotating block (34), the ring two (36) is installed on the rotating block (34), and the ring two (36) is connected to the nozzle (37); when the support assembly b pushes the battery pack (41), the nozzle (37) first extinguishes the fire in the quick-release shell (1), and then after the telescopic tube (30) is pulled to the longest state, the rotating block (34) is pulled to flip, so that the nozzle (37) is directed toward the battery pack (41) on the ground to extinguish the fire.

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