Storage battery pack convenient to disassemble and fix for new energy automobile

Abstract

The invention relates to the technical field of vehicle batteries, in particular to a new energy vehicle storage battery pack convenient to disassemble and fix, which comprises a quick-assembly shell and a battery pack arranged in the quick-assembly shell, and further comprises an unlocking mechanism mounted in the quick-assembly shell; the triggering mechanism is mounted in the quick-mounting shell and is used for triggering the unlocking mechanism when the battery pack burns; the push-down mechanism is mounted in the quick-mounting shell, is positioned on the battery pack and is used for pushing out the battery pack during combustion; the fire extinguishing mechanism is mounted on the unlocking mechanism and is used for extinguishing fire of the quick-assembly shell when the battery pack is pushed; the unlocking mechanism comprises a supporting assembly a, a supporting assembly b, a limiting assembly a, a limiting assembly b, a locking assembly, a first rod, a first bevel block and a second bevel block. According to the invention, the battery pack is pushed away from the lower part of the quick-mounting shell and leaves the bottom of the automobile, so that the battery pack is pushed away when the battery pack is burnt due to thermal runaway, and the situation that the battery pack is burnt at the bottom of the automobile and the whole automobile is burnt is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle batteries, and particularly relates to a battery pack for a new energy vehicle that is convenient for disassembly and fixation. Background Art

[0002] The battery pack is one of the power devices of a new energy vehicle and is one of the core components of a new energy vehicle. During daily use, electrical energy is released by the battery to drive the new energy vehicle.

[0003] Chinese Patent with the authorization announcement number CN208630342U discloses a battery fixing bracket for an electric vehicle, which includes an upper cover plate, a support plate, a lower fixing ring and a bracket. The above-mentioned prior art has a reasonable structure and is convenient for installation. The battery is suspended, clamped and fixed firmly by the upper cover plate and the support plate, and the battery case will not be damaged. There is a gap between the batteries for heat dissipation, effectively solving the technical problem of inconvenient use of the battery fixing bracket of the existing electric vehicle.

[0004] However, at the present stage, during the process of the battery pack being impacted or charged, due to the instability of the battery pack itself, the battery pack may undergo thermal runaway and then catch fire. At this time, the battery pack is still installed in the vehicle, and as the battery pack continues to burn, the flame may burn the entire vehicle, resulting in a major accident. Summary of the Invention

[0005] The object of the present invention is to propose a battery pack for a new energy vehicle that is convenient for disassembly and fixation in view of the problems in the background art.

[0006] The technical solution of the present invention: A battery pack for a new energy vehicle that is convenient for disassembly and fixation, including a quick-installation shell and a battery pack. The battery pack is arranged in the quick-installation shell, and further includes: An unlocking mechanism, which is installed in the quick-installation shell; A triggering mechanism, which is installed in the quick-installation shell and is used to trigger the unlocking mechanism when the battery pack catches fire; A downward-pushing mechanism, which is installed in the quick-installation shell and is located above the battery pack to push the battery pack out during combustion; A fire extinguishing mechanism, which is installed on the unlocking mechanism to extinguish the fire of the quick-installation 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, an inclined block 1, and an inclined block 2; the rod 1 is installed on the movable end of the triggering component, the support component a is installed in the quick-installation shell to support the battery pack, and a limit component a for restricting the lateral movement of the support component a is installed inside it. An inclined block 1 pressed by the rod 1 is installed on the limit component a; the support component b is installed in the quick-installation shell to support the battery pack, and a limit component b for restricting the flipping of the support component b is installed inside it. An inclined block 2 located on the movement path of the rod 1 is installed on the limit component b, and a locking component for locking the flipped support component b is arranged inside the support component b.

[0007] Preferably, the support component a includes a plate 2, an elastic member 2, and a plate 3; The plate 2 is installed in the quick-installation shell, the elastic member 2 is installed inside the quick-installation shell, and its other end is connected to the plate 3 that is limited by the limit component a and supports the battery pack; when the rod 1 is separated from the inclined block 1, the limit component a releases the limit on the plate 3, and the elastic member 2 pulls the plate 3 to move laterally towards the elastic member 2, releasing the support for the battery pack.

[0008] Preferably, the support component b includes an elastic member 3, a plate 4, a plate 5, a rectangular block, and a pulley; The elastic member 3 is installed in the quick-installation shell, and its other end is connected to the plate 4. The plate 5 for supporting the battery pack is rotatably connected inside the plate 4. Rectangular blocks are installed on the rotating shafts on both sides of the plate 5, and the rectangular blocks are limited by the limit component b. Pulleys are installed on both the plate 4 and the support component a.

[0009] Preferably, the limit component a includes a spring 1 and a rod 2; The spring 1 is installed in the plate 2, and its other end is connected to the inclined block 1. A rod 2 for restricting the lateral movement of the plate 3 is installed at the bottom end of the inclined block 1; when the rod 1 moves and is separated from the inclined block 1, the spring 1 drives the inclined block 1 and the rod 2 to rise, releasing the limit on the plate 3.

[0010] Preferably, the limit component b includes a spring 2 and a limit frame; The spring 2 is installed in the plate 4, and its other end is connected to the inclined block 2. A limit frame is installed at the bottom end of the inclined block 2, and the limit frame fits with the rectangular block; when the rod 1 moves to press the inclined block 2, the limit frame descends to release the limit on the rectangular block, and the plate 5 flips by its own weight.

[0011] Preferably, the locking component includes a spring 3, a rod 3, and a jack; The jack is opened on the plate 5, the spring 3 is installed in the plate 4, and its other end is connected to the rod 3; after the plate 5 flips, the elasticity of the spring 3 drives the rod 3 to descend and insert into the jack.

[0012] Preferably, the triggering mechanism includes an elastic member 1, a plate 1, a quick-burning strip, and a ring 1; Ring 1 is installed on the support component a, elastic component 1 is installed inside the quick - installation shell, and its other end is connected to plate 1. A rapid - combustion strip is connected to plate 1. Installation rods 1 are installed on both sides of plate 1. The rapid - combustion strip passes through Ring 1 and is connected to the quick - installation shell, and the rapid - combustion strip covers the battery pack. When the battery pack catches fire due to thermal runaway, after the flame burns through the rapid - combustion strip, the elasticity of elastic component 1 drives plate 1 to move.

[0013] Preferably, the downward - pushing mechanism includes cylinder 5, spring 5, downward - pressing rod, and inserting rod. Cylinder 5 is installed inside the quick - installation shell, spring 5 is installed on cylinder 5 and sleeved on the outer periphery of cylinder 5. The other end of spring 5 is connected to the downward - pressing rod. The inserting rod is installed on the movable end of the triggering component and is inserted into cylinder 5 and the downward - pressing rod to limit the positions of spring 5 and the downward - pressing rod.

[0014] Preferably, the fire - extinguishing mechanism includes cylinder 1, circular tube, cylinder 2, spring 4, blocking block, rod 4, cylinder 3, telescopic tube, control valve, spray head, and flipping unit. Cylinder 1 is installed inside the quick - installation shell, and a control valve for supplementing compressed gas is installed on it. Cylinder 3 is vertically installed inside the quick - installation shell. Both ends of the circular tube penetrate through cylinder 1 and the top end of the inner cavity of cylinder 3 respectively. Cylinder 2 is installed on the circular tube, and spring 4 is installed inside it. The other end of spring 4 is connected to the blocking block. The blocking block is located at the connection of the circular tube and cylinder 2. Rod 4 that limits the installation of the blocking block is supported by support component b. The bottom end of cylinder 3 penetrates through the telescopic tube, and the other end of the telescopic tube is connected to the spray head. In the initial state, the spray head faces cylinder 3.

[0015] Preferably, the flipping unit includes cylinder 4, torsion spring, rotating block, and Ring 2. Cylinder 4 is installed inside support component b, the torsion spring is installed inside cylinder 4, the center of the torsion spring is connected to the rotating block, Ring 2 is installed on the rotating block, and Ring 2 is internally connected to the spray head. When support component b pushes the battery pack, the spray head first extinguishes the fire inside the quick - installation shell. Subsequently, after the telescopic tube is pulled to the longest state, it pulls the rotating block to flip, so that the spray head faces the battery pack on the ground and extinguishes the fire on it.

[0016] Compared with the prior art, the above - mentioned technical solution of the present invention has the following beneficial technical effects: When the battery pack burns due to thermal runaway, the rapid - combustion strip is burned through. Subsequently, the elasticity of elastic component 1 pulls plate 1 in the direction of elastic component 1, thereby driving rod 1 to move. Rod 1 separates from inclined - plane block 1. At this time, the elasticity of spring 1 drives rod 2 to rise, releasing the limit on plate 3. Thus, the elasticity of elastic component 2 drives plate 3 to move towards elastic component 2, causing plate 3 to separate from the bottom end of the battery pack.

[0017] The other end of rod 1 presses inclined - plane block 2 downward, thereby driving the limit frame to descend, causing the limit frame to separate from the rectangular block. Subsequently, plate 5 loses its limit, and then it flips and descends due to its own gravity. After that, the elasticity of spring 3 drives rod 3 to descend and insert into the jack to limit and lock the flipped plate 5.

[0018] Meanwhile, the insertion rod is withdrawn from the fifth cylinder and the pressing rod, releasing the limit of the fifth cylinder and the pressing rod. Subsequently, the pressing rod is driven downward by the elasticity of the fifth spring, thereby pushing the battery pack downward and away from under the quick-installation shell. Subsequently, the bottom plate of the fourth plate is driven by the elasticity of the third elastic member to move the fifth plate, pushing the battery pack away from under the quick-installation shell and away from the bottom of the vehicle. When the battery pack experiences thermal runaway and combustion, by pushing the battery pack away, it is possible to avoid the situation where the battery pack burns at the bottom of the vehicle, causing the entire vehicle to catch fire.

[0019] When the fourth plate moves, it separates from the fourth rod, thereby driving the blocking block away from the connection between the circular tube and the second cylinder. This allows the compressed gas in the inner cavity of the first cylinder to enter the inner cavity of the third cylinder along the circular tube. Subsequently, the fire extinguishing powder in the inner cavity of the third cylinder is pushed into the telescopic tube. Then, the fire extinguishing powder sprays out from the nozzle into the quick-installation shell along the telescopic tube. When the fourth plate moves to the maximum distance, the telescopic tube is straightened, thereby pulling the nozzle and driving the rotating block to rotate, causing the nozzle to face the battery pack that has been pushed out from the bottom of the vehicle. Thus, fire extinguishing powder is sprayed on the battery pack to extinguish it, achieving the goal of extinguishing the fire inside the quick-installation shell first to prevent the inside of the quick-installation shell from catching fire during the process of pushing the battery pack away, and then preliminarily extinguishing the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic internal structure diagram of the quick-installation shell proposed by the present invention; Figure 3 is proposed by the present invention Figure 2 enlarged schematic diagram at A in Figure 4 is a schematic structural diagram of the fifth cylinder and the pressing rod proposed by the present invention; Figure 5 is proposed by the present invention Figure 4 enlarged schematic diagram at B in Figure 6 is proposed by the present invention Figure 4 enlarged schematic diagram at C in Figure 7 is a schematic structural diagram of the third elastic member and the fourth plate proposed by the present invention; Figure 8 is proposed by the present invention Figure 7 enlarged schematic diagram at D in Figure 9 is a schematic structural diagram of the first cylinder and the third cylinder proposed by the present invention; Figure 10 is proposed by the present invention Figure 9 enlarged schematic diagram at E in Figure 11 is a schematic diagram of the jack opened on the fifth plate proposed by the present invention.

[0021] Reference numerals: 1, quick - mounting shell; 2, first elastic member; 3, first plate; 4, rapid - combustion strip; 5, second plate; 6, first ring; 7, first rod; 8, second elastic member; 9, third plate; 10, first spring; 11, first inclined - plane block; 12, second rod; 13, third elastic member; 14, fourth plate; 15, second spring; 16, second inclined - plane block; 17, limit frame; 18, fifth plate; 19, rectangular block; 20, third spring; 21, third rod; 22, jack; 23, first cylinder; 24, circular tube; 25, second cylinder; 26, fourth spring; 27, plugging block; 28, fourth rod; 29, third cylinder; 30, telescopic tube; 31, fourth cylinder; 32, spiral spring; 33, fifth cylinder; 34, rotating block; 35, control valve; 36, second ring; 37, nozzle; 38, fifth spring; 39, downward - pressing rod; 40, inserting rod; 41, battery pack; 42, pulley. Detailed implementation mode

[0022] Example 1, as Figures 1-11 shown, a battery pack for a new - energy vehicle that is easy to disassemble and fix proposed by the present invention includes an unlocking mechanism, a triggering mechanism, a downward - pushing mechanism, a fire - extinguishing mechanism, a quick - mounting shell 1 and a battery pack 41, and the battery pack 41 is arranged in the quick - mounting shell 1.

[0023] Threaded holes are opened outside the quick - mounting shell 1, and the quick - mounting shell 1 can be quickly installed in the vehicle through the threaded holes.

[0024] The battery pack 41 is inserted into the quick - mounting shell 1, and the quick - mounting shell 1 is electrically connected to the vehicle.

[0025] The unlocking mechanism is installed in the quick - mounting shell 1; The triggering mechanism is installed in the quick - mounting shell 1 and is used to trigger the unlocking mechanism when the battery pack 41 burns; The downward - pushing mechanism is installed in the quick - mounting shell 1 and is located above the battery pack 41 and is used to push the battery pack 41 out during combustion; The fire - extinguishing mechanism is installed on the unlocking mechanism and is used to extinguish the fire of the quick - mounting shell 1 when pushing the battery pack 41; The unlocking mechanism includes a support assembly a, a support assembly b, a limit assembly a, a limit assembly b, a locking assembly, a first rod 7, a first inclined - plane block 11 and a second inclined - plane block 16; the first rod 7 is installed on the moving end of the triggering assembly, the support assembly a is installed in the quick - mounting shell 1 to support the battery pack 41, and a limit assembly a for restricting the lateral movement of the support assembly a is installed inside it, and the first inclined - plane block 11 pressed by the first rod 7 is installed on the limit assembly a; the support assembly b is installed in the quick - mounting shell 1 to support the battery pack 41, and a limit assembly b for restricting the flipping of the support assembly b is installed inside it, and the second inclined - plane block 16 located on the moving path of the first rod 7 is installed on the limit assembly b, and a locking assembly for locking the flipped support assembly b is arranged inside the support assembly b.

[0026] When the battery pack 41 catches fire due to thermal runaway, the triggering mechanism drives the first rod 7 to leave the first inclined block 11 and presses the second inclined block 16 to move downward. The first inclined block 11 rises, the movable end of the support assembly a moves horizontally, and at the same time, the support assembly b flips. Through the movement of the support assembly a and the support assembly b, the limit on both sides of the bottom of the battery pack 41 is released. Subsequently, through the pushing mechanism, the battery pack 41 is pushed out of the quick-installation shell 1. Then, the support assembly b drives the battery pack 41 to leave the lower part of the quick-installation shell 1.

[0027] The support assembly a includes a second plate 5, a second elastic member 8, and a third plate 9; The second plate 5 is installed inside the quick-installation shell 1. The second elastic member 8 is installed inside the quick-installation shell 1, and its other end is connected to the third plate 9 that is limited by the limiting assembly a and supports the battery pack 41. When the first rod 7 separates from the first inclined block 11, the limiting assembly a releases the limit on the third plate 9, and the second elastic member 8 pulls the third plate 9 to move horizontally towards the second elastic member 8, releasing the support for the battery pack 41.

[0028] A round hole is provided on the third plate 9, and the second rod 12 is inserted into the round hole to limit and lock the third plate 9.

[0029] The support assembly b includes a third elastic member 13, a fourth plate 14, a fifth plate 18, a rectangular block 19, and a pulley 42; The third elastic member 13 is installed inside the quick-installation shell 1, and its other end is connected to the fourth plate 14. The fourth plate 14 rotatably connects the fifth plate 18 that supports the battery pack 41. Rectangular blocks 19 are installed on the rotating shafts on both sides of the fifth plate 18. The rectangular blocks 19 are limited by the limiting assembly b. Pulleys 42 are installed on both the fourth plate 14 and the support assembly a.

[0030] When the pushing mechanism pushes the battery pack 41 to descend and leave the quick-installation shell 1, due to the slidability of the pulley 42, the battery pack 41 can descend, avoiding the situation where the elastic force of the third elastic member 13 pushes the fourth plate 14 and causes the battery pack 41 to be unable to descend.

[0031] The limiting assembly a includes a first spring 10 and a second rod 12; The first spring 10 is installed inside the second plate 5, and its other end is connected to the first inclined block 11. The bottom end of the first inclined block 11 is installed with the second rod 12 that restricts the horizontal movement of the third plate 9. When the first rod 7 moves and separates from the first inclined block 11, the first spring 10 drives the first inclined block 11 and the second rod 12 to rise, releasing the limit on the third plate 9.

[0032] The limiting assembly b includes a second spring 15 and a limiting frame 17; The second spring 15 is installed inside the fourth plate 14, and its other end is connected to the second inclined block 16. The bottom end of the second inclined block 16 is installed with the limiting frame 17, and the limiting frame 17 is in contact with the rectangular block 19. When the first rod 7 moves, it presses the second inclined block 16, and the limiting frame 17 descends to release the limit on the rectangular block 19, and the fifth plate 18 flips due to its own weight.

[0033] After flipping, the fourth plate 14 and the fifth plate 18 change from an overall L shape to a straight plate.

[0034] A rectangular groove is provided at the bottom end of the inner cavity of the fourth plate 14, and the rectangular block 19 and the limiting frame 17 are both located in the rectangular groove.

[0035] The locking assembly includes a third spring 20, a third rod 21, and a jack 22; The jack 22 is provided on the fifth plate 18, the third spring 20 is installed in the fourth plate 14, and the other end thereof is connected to the third rod 21; after the fifth plate 18 is flipped, the elasticity of the third spring 20 drives the third rod 21 to descend and insert into the jack 22.

[0036] The triggering mechanism includes a first elastic member 2, a first plate 3, a quick-burning strip 4, and a first ring 6; The first ring 6 is installed on the support assembly a, the first elastic member 2 is installed in the quick-installation shell 1, and the other end thereof is connected to the first plate 3. The quick-burning strip 4 is connected to the first plate 3. The first rods 7 are installed on both sides of the first plate 3. The quick-burning strip 4 passes through the first ring 6 and is connected to the quick-installation shell 1. The quick-burning strip 4 covers the battery pack 41; when the battery pack 41 catches fire due to thermal runaway, after the flame burns through the quick-burning strip 4, the elasticity of the first elastic member 2 drives the first plate 3 to move.

[0037] The quick-burning strip 4 is made of a quick-burning material.

[0038] Example 2, as Figure 2 and Figure 4 shown, a battery pack for a new energy vehicle that is easy to disassemble and fix proposed by the present invention. Compared with Example 1, the pushing mechanism in this example includes a fifth cylinder 33, a fifth spring 38, a downward pressing rod 39, and a plug rod 40; The fifth cylinder 33 is installed in the quick-installation shell 1, the fifth spring 38 is installed on the fifth cylinder 33 and sleeved on the outer periphery of the fifth cylinder 33. The other end of the fifth spring 38 is connected to the downward pressing rod 39. The plug rod 40 is installed on the movable end of the triggering assembly and is inserted into the fifth cylinder 33 and the downward pressing rod 39 to limit the fifth spring 38 and the downward pressing rod 39.

[0039] Example 3, as Figure 2 , Figure 3 and Figures 7-10 shown, a battery pack for a new energy vehicle that is easy to disassemble and fix proposed by the present invention. Compared with Example 2, the fire extinguishing mechanism in this example includes a first cylinder 23, a circular tube 24, a second cylinder 25, a fourth spring 26, a blocking block 27, a fourth rod 28, a third cylinder 29, a telescopic tube 30, a control valve 35, a spray head 37, and a flipping unit; The first cylinder 23 is filled with compressed gas, and the compressed gas can be carbon dioxide or nitrogen, etc.

[0040] The third cylinder 29 is filled with fire extinguishing powder, and the fire extinguishing powder can be ammonium phosphate, etc.

[0041] The first cylinder 23 is installed inside the quick - installation shell 1, and a control valve 35 for supplementing compressed gas is installed thereon; the third cylinder 29 is vertically installed inside the quick - installation shell 1, and both ends of the round tube 24 penetrate through the first cylinder 23 and the top end of the inner cavity of the third cylinder 29 respectively; the second cylinder 25 is installed on the round tube 24, a fourth spring 26 is installed inside it, the other end of the fourth spring 26 is connected to a blocking block 27, the blocking block 27 is located at the connection of the round tube 24 and the second cylinder 25, and the installation of the blocking block 27 is limited by a fourth rod 28 of the support assembly b; the bottom end of the third cylinder 29 penetrates through a telescopic tube 30, and the other end of the telescopic tube 30 is connected to a spray head 37; in the initial state, the spray head 37 faces the third cylinder 29.

[0042] When the air pressure inside the first cylinder 23 decreases, compressed gas can be supplemented into the first cylinder 23 through the control valve 35 to maintain the air pressure inside the first cylinder 23.

[0043] The flipping unit includes a fourth cylinder 31, a coil spring 32, a rotating block 34, and a second ring 36; The fourth cylinder 31 is installed inside the support assembly b, the coil spring 32 is installed inside the fourth cylinder 31, the center of the coil spring 32 is connected to the rotating block 34, the second ring 36 is installed on the rotating block 34, and the spray head 37 is connected inside the second ring 36; when the support assembly b pushes the battery pack 41, the spray head 37 first extinguishes the fire inside the quick - installation 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 spray head 37 faces the battery pack 41 on the ground and extinguishes the fire on it.

[0044] In summary, in the present invention, in the initial state, the battery pack 41 is inserted into the quick - installation shell 1, and the battery pack 41 is supported and fixed by the third plate 9 and the fifth plate 18.

[0045] When the battery pack 41 undergoes thermal runaway combustion, the rapid - combustion strip 4 is burned off. Due to the rapid - combustion property of the rapid - combustion strip 4, when one part of the battery pack 41 burns, the entire rapid - combustion strip 4 is burned off. At this time, the first elastic member 2 drives the first plate 3 to move towards the first elastic member 2 through its elasticity, thereby driving the first rod 7 to move. The first rod 7 separates from above the inclined - plane block 11. At this time, the first spring 10 drives the second rod 12 to rise and pull out from the third plate 9 through its elasticity, thereby releasing the limit of the third plate 9. Subsequently, the second elastic member 8 drives the third plate 9 to move in the direction of the second elastic member 8 through its elasticity and move away from below the battery pack 41.

[0046] At the same time, the first rod 7 presses against the second inclined - plane block 16, pressing the second inclined - plane block 16 downward, thereby driving the limit frame 17 to descend, so that the limit frame 17 separates from the rectangular block 19. Subsequently, the fifth plate 18 flips due to its own weight. When the jack 22 opened on the fifth plate 18 is located at the third rod 21, the third rod 21 is driven to insert into the jack 22 through the elasticity of the third spring 20 to lock and limit the fifth plate 18.

[0047] Meanwhile, the first board 3 drives the insertion rod 40 to pull out from the fifth cylinder 33 and the downward pressure rod 39, releasing the limit of the downward pressure rod 39 and the fifth cylinder 33. Subsequently, the elastic force of the fifth spring 38 drives the downward pressure rod 39 to descend, pushing the battery pack 41 down to the position below the quick installation shell 1.

[0048] Subsequently, the elastic force of the third elastic member 13 drives the fourth board 14 and the fifth board 18 to push the battery pack 41 located at the bottom of the vehicle to one side of the vehicle. During the pushing process, the fourth rod 28 separates from the fourth board 14. At this time, the elastic force of the fourth spring 26 drives the blocking block 27 to leave the connection of the circular tube 24 and the second cylinder 25. Subsequently, the compressed gas in the cavity of the first cylinder 23 enters the third cylinder 29 along the circular tube 24, thereby pushing the fire extinguishing powder in the third cylinder 29 and the telescopic tube 30, causing it to spray out from the nozzle 37. The nozzle 37 sprays the fire extinguishing powder into the quick installation shell 1 to prevent a fire inside the quick installation shell 1.

[0049] When the fourth board 14 moves to the farthest position, the telescopic tube 30 is straightened, thereby pulling the nozzle 37, and then driving the rotating block 34 to flip, thus driving the nozzle 37 to flip and spray the fire extinguishing powder onto the battery pack 41 on the ground. Subsequently, the fire extinguishing powder is sprayed onto the battery pack 41 to initially extinguish the combustion of the battery pack 41.

[0050] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those skilled in the art.

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 installed in the quick-release housing (1); A trigger mechanism, which is mounted 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, which is mounted on the unlocking mechanism and is used to extinguish a fire in the quick-release housing (1) when the battery pack (41) is pushed; The unlocking mechanism comprises 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 surface block 1 (11) and an inclined surface block 2 (16); the rod 1 (7) is mounted on the movable end of the trigger component; the support component a is mounted in the quick-release housing (1) to support the battery pack (41); a limit component a for limiting the lateral movement of the support component a is mounted therein; the limit component a is mounted on the inclined surface block 1 (11) pressed by the rod 1 (7); the support component b is mounted in the quick-release housing (1) to support the battery pack (41); a limit component b for limiting the flipping of the support component b is mounted therein; the limit component b is mounted on the inclined surface block 2 (16) located on the moving path of the rod 1 (7); and a locking component for locking the flipped support component b is arranged in the support component b.

2. The battery pack for new energy vehicles that is easy to disassemble and fix according to claim 1 is characterized in that: Support assembly a comprises 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 inside the quick-release shell (1), and the other end of the second elastic member (8) is connected to the third plate (9) which is limited by the limiting assembly a and supports the battery pack (41); the first rod (7) is separated from the inclined block (11), the limiting assembly 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 1 is characterized in that: Support assembly b comprises elastic member three (13), plate four (14), plate five (18), a rectangular block (19) and a pulley (42); The elastic member 3 (13) is installed in the quick-release housing (1), and the other end thereof is connected to the plate 4 (14). The plate 4 (14) is rotatably connected to the plate 5 (18) supporting the battery pack (41). Rectangular blocks (19) are installed on the rotating shafts on both sides of the plate 5 (18), and the rectangular blocks (19) are limited by the limiting assembly b. Pulleys (42) are installed on both the plate 4 (14) and the supporting assembly a.

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

5. The battery pack for new energy vehicles that is easy to disassemble and fix according to claim 3 is characterized in that: The limiting component b comprises a second spring (15) and a limiting frame (17); The second spring (15) is installed in the fourth plate (14), and the other end thereof is connected to the second inclined surface block (16). The bottom end of the second inclined surface block (16) is installed with a limit frame (17), and the limit frame (17) is fitted with the rectangular block (19); the first rod (7) moves to press the second inclined surface block (16), and the limit frame (17) descends to release the limit on the rectangular block (19), and the fifth plate (18) turns over by its own weight.

6. The battery pack for new energy vehicles that is easy to disassemble and fix according to claim 3 is characterized in that: The locking assembly comprises a spring three (20), a rod three (21) and a socket (22); The jack (22) is formed on the plate (18), the spring (20) is installed in the plate (14), and the other end of the spring (20) is connected to the rod (21); after the plate (18) is turned over, the elasticity of the spring (20) drives the rod (21) to descend and be inserted into the jack (22).

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

8. The battery pack for new energy vehicles that is easy to disassemble and fix according to claim 1 is characterized in that: The push-down mechanism comprises a cylinder five (33), a spring five (38), a push-down rod (39) and an insertion rod (40); The cylinder (33) is installed in the quick-release housing (1), the spring (38) is installed on the cylinder (33) and sleeved on the outer circumference of the cylinder (33), the other end of the spring (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 (33) and the down-pressing rod (39) to limit the spring (38) and the down-pressing rod (39).

9. 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 comprises a cylinder 1 (23), a round 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; The first cylinder (23) is installed in the quick-install housing (1), and a control valve (35) for replenishing compressed gas is installed on the cylinder; the third cylinder (29) is vertically installed in the quick-install housing (1), and the two ends of the circular tube (24) respectively penetrate the first cylinder (23) and are located at the top of the inner cavity of the third cylinder (29); the second cylinder (25) is installed on the circular tube (24), and a spring (26) is installed therein, and the other end of the spring (26) is connected to a blocking block (27), and the blocking block (27) is located at the connection between the circular tube (24) and the second cylinder (25), and the installation of the blocking block (27) is limited by a rod (28) of a support assembly b; the bottom end of the third cylinder (29) penetrates the telescopic tube (30), and the other end of the telescopic tube (30) is connected to a nozzle (37); in the initial state, the nozzle (37) faces the third cylinder (29).

10. The battery pack for new energy vehicles that is easy to disassemble and fix according to claim 9, characterized in that: The turning unit comprises 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 component 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 rotating block (34) is installed with the ring two (36), and the ring two (36) is connected to the nozzle (37); when the support component 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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