Fire safety protection device for new energy automobile battery pack anti-collision test

Abstract

The utility model discloses a fire safety protection device for a new energy automobile battery pack anti-collision test, which comprises a battery pack test bearing frame, a battery pack fire extinguishing mechanism arranged at the upper end of the battery pack test bearing frame, a collision guide rail arranged at the front end of the battery pack test bearing frame, and a collision tractor arranged at the upper end of the collision guide rail. The battery pack test bearing frame comprises a bearing positioning frame, the front end of the bearing positioning frame is fixedly connected with a protective back plate, and the front end of the protective back plate is provided with a battery pack bearing frame. According to the fire safety protection device for the anti-collision test of the new energy automobile battery pack, the battery pack fire extinguishing mechanism is arranged, the state of the battery pack is observed after the battery pack is collided, if smoke and fire occur, the booster pump is controlled to be started, and the battery pack is extinguished. And the booster pump continuously sprays the fire extinguishing agent in the storage box to the surface of the battery pack through the spraying pipe and the nozzle, so that the purpose of cooling and extinguishing the fire of the battery pack is achieved.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle battery testing technology, and in particular to a fire safety protection device for anti-collision testing of new energy vehicle battery packs. Background Technology

[0002] Battery pack impact testing involves subjecting a battery pack to simulate external impacts or shocks to assess its safety and durability under physical impact. The purpose of this test is to determine whether the battery pack can maintain its structural integrity when subjected to impacts or external forces of varying degrees, preventing short circuits, fires, explosions, or other safety incidents within the battery.

[0003] For example, Chinese Patent Publication No. (CN215811518U) discloses a battery pack impact testing device, which describes: "It includes a base, on the upper surface of which a placement plate and a vertical plate are fixedly mounted. The upper surface of the placement plate holds the battery pack to be tested, and the side surface of the vertical plate is fixedly mounted with a mounting plate by a mounting screw. This invention stores energy by sliding a clamping plate into a groove and pulling an impact hammer to drive a connecting rod to rotate around a rotating sleeve. When the impact hammer is released, it impacts the battery pack to be tested using gravitational potential energy, better simulating the horizontal impact of the battery pack. Pulling a thin steel wire rope raises the impact block to different heights. When the thin steel wire rope is released, the impact block can fall freely and strike the battery pack to be tested, vertically detecting the impact resistance of the battery pack. This invention detects the impact resistance of the battery pack in both horizontal and vertical directions, making the testing effect more comprehensive."

[0004] In summary, the device also has the following technical problems: the device achieves the purpose of testing the battery pack by impacting it, but since the battery pack combustion is chemical combustion and the battery is very easy to burn after being impacted, prolonged combustion of the battery will damage the testing equipment and release some toxic gases. Therefore, it is necessary to propose a fire safety protection device for impact testing of new energy vehicle battery packs, and to provide a new technical solution to solve the technical problems mentioned in the above patent. Utility Model Content

[0005] Based on this, it is necessary to provide a fire safety protection device for the impact test of new energy vehicle battery packs to address the above-mentioned technical problems. By setting up a battery pack fire extinguishing mechanism, the battery pack status is observed after being impacted. If smoke or fire occurs, the booster pump is activated. The booster pump continuously sprays the fire extinguishing agent inside the storage tank onto the surface of the battery pack through the spray pipe and nozzle, thereby achieving the purpose of cooling and extinguishing the fire in the battery pack.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A fire safety protection device for impact testing of battery packs in new energy vehicles.

[0008] The fire safety protection device for the anti-collision test of the new energy vehicle battery pack specifically includes a battery pack test support frame, a battery pack fire extinguishing mechanism is provided at the upper end of the battery pack test support frame, an impact guide rail is provided at the front end of the battery pack test support frame, and an impact tractor is provided at the upper end of the impact guide rail.

[0009] The battery pack test support frame includes a support positioning frame, a protective back plate is fixedly connected to the front end of the support positioning frame, a battery pack support frame is provided at the front end of the protective back plate, and a battery pack compression locking structure is connected to the upper end of the battery pack support frame.

[0010] As a preferred embodiment of the fire safety protection device for anti-collision testing of new energy vehicle battery packs provided by this utility model, a bearing rod is symmetrically fixedly connected to the side of the protective back plate near the impact guide rail, and a spray pipe is rotatably connected inside the bearing rod. The bottom surface of the spray pipe has nozzles arranged in a linear array.

[0011] As a preferred embodiment of the fire safety protection device for anti-collision testing of new energy vehicle battery packs provided by this utility model, a booster pump is fixedly connected to the side of the protective back plate, a storage tank is fixedly connected to one side of the booster pump, and the storage tank is connected to the booster pump. A delivery pipe is fixedly connected to the output end of the booster pump, and multiple diversion pipes are fixedly connected to the surface of the delivery pipe. The end of the diversion pipe away from the delivery pipe is connected to the spray pipe, and the diversion pipe is a flexible hose.

[0012] As a preferred embodiment of the fire safety protection device for anti-collision testing of new energy vehicle battery packs provided by this utility model, an L-shaped positioning rod is provided at the upper end of the bearing rod, a smooth rod is slidably connected inside the L-shaped positioning rod, and a rack is fixedly connected to the surface of the smooth rod.

[0013] As a preferred embodiment of the fire safety protection device for anti-collision testing of new energy vehicle battery packs provided by this utility model, a spring is sleeved on the surface of the light rod, and the two ends of the spring are fixedly connected to an L-shaped positioning rod and a rack, respectively. A driven gear is fixedly connected to the surface of the spray pipe, and the driven gear meshes with the rack.

[0014] As a preferred embodiment of the fire safety protection device for anti-collision testing of new energy vehicle battery packs provided by this utility model, a servo motor is fixedly connected to the surface of the L-shaped positioning rod, a transmission shaft is rotatably connected to the transmission end of the servo motor, and a half-tooth gear is fixedly connected to the end of the transmission shaft away from the servo motor, and the half-tooth gear meshes with a rack.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The fire safety protection device for anti-collision testing of new energy vehicle battery packs provided by this utility model has a battery pack fire extinguishing mechanism. After the battery pack is impacted, the battery pack status is observed. If smoke or fire occurs, the booster pump is activated. The booster pump continuously sprays the fire extinguishing agent inside the storage tank onto the surface of the battery pack through the spray pipe and nozzle, thereby achieving the purpose of cooling and extinguishing the fire of the battery pack.

[0017] The fire safety protection device for anti-collision testing of new energy vehicle battery packs provided by this utility model, by setting a rack and driven gear in the battery pack fire extinguishing mechanism, the servo motor starts to drive the half gear to drive the rack to rotate back and forth, thereby making the spray pipe swing, thereby increasing the spray area and spray angle, and thus effectively increasing the overall massage effect of the device. Attached Figure Description

[0018] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the overall structure of the fire safety protection device for anti-collision testing of new energy vehicle battery packs provided by this utility model;

[0020] Figure 2 A schematic diagram of the connection structure between the battery pack fire extinguishing mechanism and the battery pack test support frame of the fire safety protection device for anti-collision testing of new energy vehicle battery packs provided by this utility model.

[0021] Figure 3 A schematic diagram of the fire extinguishing mechanism of the fire safety protection device for fire protection testing of new energy vehicle battery packs provided by this utility model.

[0022] Figure 4 A schematic diagram of the bottom structure of the fire extinguishing mechanism of the battery pack for fire protection device used in the anti-collision test of new energy vehicle battery packs provided by this utility model;

[0023] Figure 5 A schematic diagram of the connection structure of the rack and driven gear in the fire safety protection device for anti-collision testing of new energy vehicle battery packs provided by this utility model.

[0024] The markings in the diagram are explained as follows:

[0025] 1. Battery pack test support frame; 2. Battery pack fire extinguishing mechanism; 3. Impact guide rail; 4. Impact traction vehicle; 5. Support positioning frame; 6. Protective back plate; 7. Battery pack support frame; 8. Battery pack compression locking structure; 9. Support rod; 10. Sprinkler pipe; 11. Nozzle; 12. Booster pump; 13. Storage tank; 14. Delivery pipe; 15. Diverter pipe; 16. L-shaped positioning rod; 17. Smooth rod; 18. Spring; 19. Rack; 20. Driven gear; 21. Servo motor; 22. Drive shaft; 23. Half gear. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0027] As described in the background art, the device achieves the purpose of testing the battery pack by impacting it. However, since the battery pack combustion is a chemical combustion and the battery is very easy to burn after being impacted, prolonged burning of the battery will damage the testing equipment and release some toxic gases.

[0028] To address this technical problem, this utility model provides a fire safety protection device for impact testing of new energy vehicle battery packs.

[0029] For details, please refer to Figures 1-4 The fire safety protection device for anti-collision testing of new energy vehicle battery packs specifically includes a battery pack test support frame 1, a battery pack fire extinguishing mechanism 2 is provided at the upper end of the battery pack test support frame 1, an impact guide rail 3 is provided at the front end of the battery pack test support frame 1, and an impact tractor 4 is provided at the upper end of the impact guide rail 3.

[0030] The battery pack test support frame 1 includes a support positioning frame 5, a protective back plate 6 is fixedly connected to the front end of the support positioning frame 5, a battery pack support frame 7 is provided at the front end of the protective back plate 6, and a battery pack compression locking structure 8 is connected to the upper end of the battery pack support frame 7.

[0031] The fire safety protection device for the anti-collision test of new energy vehicle battery packs provided by this utility model has a battery pack fire extinguishing mechanism 2. After the battery pack is impacted, the battery pack status is observed. If smoke or fire occurs, the booster pump 12 is activated. The booster pump 12 continuously sprays the fire extinguishing agent inside the storage tank 13 onto the surface of the battery pack through the spray pipe 10 and the nozzle 11, thereby achieving the purpose of cooling and extinguishing the fire of the battery pack.

[0032] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0033] Example 1:

[0034] Please refer to Figures 1-4 A fire safety protection device for anti-collision testing of new energy vehicle battery packs includes a battery pack test support frame 1, a battery pack fire extinguishing mechanism 2 is provided at the upper end of the battery pack test support frame 1, an impact guide rail 3 is provided at the front end of the battery pack test support frame 1, and an impact tractor 4 is provided at the upper end of the impact guide rail 3.

[0035] The battery pack test support frame 1 includes a support positioning frame 5, a protective back plate 6 is fixedly connected to the front end of the support positioning frame 5, a battery pack support frame 7 is provided at the front end of the protective back plate 6, and a battery pack compression locking structure 8 is connected to the upper end of the battery pack support frame 7.

[0036] Specifically, a bearing rod 9 is symmetrically fixedly connected to the side of the protective back plate 6 near the impact guide rail 3. A spray pipe 10 is rotatably connected inside the bearing rod 9. The bottom surface of the spray pipe 10 has nozzles 11 arranged in a linear array.

[0037] Specifically, a booster pump 12 is fixedly connected to the side of the protective back panel 6, a storage tank 13 is fixedly connected to one side of the booster pump 12, and the storage tank 13 is connected to the booster pump 12. A delivery pipe 14 is fixedly connected to the output end of the booster pump 12, and multiple diversion pipes 15 are fixedly connected to the surface of the delivery pipe 14. The end of the diversion pipe 15 away from the delivery pipe 14 is connected to the spray pipe 10. The diversion pipe 15 is a flexible hose.

[0038] With the above structural design, the battery pack is placed on top of the battery pack support frame 7 during testing, and then the battery pack is squeezed and fixed by the battery pack compression locking structure 8. After completion, the battery pack is subjected to an impact test by sliding the traction impact tractor 4 on the surface of the bearing positioning frame 5.

[0039] If the battery pack catches fire, the booster pump 12 can be turned on. The booster pump 12 delivers the fire extinguishing agent inside the storage tank 13 to the interior of the spray pipe 10 through the delivery pipe 14 and the diversion pipe 15, and then sprays it onto the surface of the battery pack through the nozzle 11, thereby extinguishing the fire in the battery pack.

[0040] Example 2:

[0041] The fire safety protection device for impact testing of new energy vehicle battery packs provided in Example 1 has been further optimized, specifically, as follows: Figures 2-5 As shown, an L-shaped positioning rod 16 is provided at the upper end of the bearing rod 9. A smooth rod 17 is slidably connected inside the L-shaped positioning rod 16, and a rack 19 is fixedly connected to the surface of the smooth rod 17.

[0042] Specifically, a spring 18 is fitted on the surface of the bare rod 17, and the two ends of the spring 18 are fixedly connected to the L-shaped positioning rod 16 and the rack 19 respectively. A driven gear 20 is fixedly connected to the surface of the spray pipe 10, and the driven gear 20 meshes with the rack 19.

[0043] Specifically, a servo motor 21 is fixedly connected to the surface of the L-shaped positioning rod 16, and a transmission shaft 22 is rotatably connected to the transmission end of the servo motor 21. A half-tooth gear 23 is fixedly connected to the end of the transmission shaft 22 away from the servo motor 21, and the half-tooth gear 23 meshes with the rack 19.

[0044] Through the above structural design, the booster pump 12 starts and the servo motor 21 starts simultaneously. The servo motor 21 drives the half-gear 23 to rotate via the transmission shaft 22. The rotation of the half-gear 23 drives the rack 19 to slide inside the L-shaped positioning rod 16 in conjunction with the guide rod 17. The movement of the L-shaped positioning rod 16 drives the driven gear 20 to rotate, which in turn drives the spray pipe 10 to rotate. The rotation of the spray pipe 10 drives the change of the spray angle of the nozzle 11. As the guide rod 17 moves, the rack 19 and the L-shaped positioning rod 16 spring back to their original positions. Spring 18 is compressed until the half-gear 23 rotates 180 degrees, at which point the half-gear 23 disengages from rack 19. At this time, spring 18 pushes rack 19 to slide in the opposite direction inside L-shaped positioning rod 16 in conjunction with light rod 17. At the same time, rack 19 drives spray pipe 10 to reverse, so that the spray angle of nozzle 11 can swing again. After half-gear 23 rotates 180 degrees again, it meshes with rack 19, so that rack 19 can drive driven gear 20 to rotate again. By repeating this process, the spray angle and spray range can be changed.

Claims

1. A fire safety protection device for impact testing of battery packs in new energy vehicles, characterized in that; It includes a battery pack test support frame (1), the upper end of which is provided with a battery pack fire extinguishing mechanism (2), the front end of which is provided with an impact guide rail (3), and the upper end of the impact guide rail (3) is provided with an impact tractor (4). The battery pack test support frame (1) includes a support positioning frame (5), a protective back plate (6) is fixedly connected to the front end of the support positioning frame (5), a battery pack support frame (7) is provided at the front end of the protective back plate (6), and a battery pack compression locking structure (8) is connected to the upper end of the battery pack support frame (7).

2. The fire safety protection device for anti-collision testing of new energy vehicle battery packs according to claim 1, characterized in that, The protective backplate (6) is symmetrically fixedly connected to a bearing rod (9) on the side near the impact guide rail (3). The bearing rod (9) is rotatably connected to a spray pipe (10). The bottom surface of the spray pipe (10) has nozzles (11) arranged in a linear array.

3. The fire safety protection device for anti-collision testing of new energy vehicle battery packs according to claim 2, characterized in that, A booster pump (12) is fixedly connected to the side of the protective back plate (6). A storage tank (13) is fixedly connected to one side of the booster pump (12), and the storage tank (13) is connected to the booster pump (12). A delivery pipe (14) is fixedly connected to the output end of the booster pump (12). Multiple diversion pipes (15) are fixedly connected to the surface of the delivery pipe (14). The end of the diversion pipe (15) away from the delivery pipe (14) is connected to the spray pipe (10). The diversion pipe (15) is a flexible hose.

4. The fire safety protection device for impact testing of new energy vehicle battery packs according to claim 3, characterized in that, An L-shaped positioning rod (16) is provided at the upper end of the bearing rod (9). A smooth rod (17) is slidably connected inside the L-shaped positioning rod (16). A rack (19) is fixedly connected to the surface of the smooth rod (17).

5. The fire safety protection device for impact testing of new energy vehicle battery packs according to claim 4, characterized in that, A spring (18) is fitted on the surface of the light rod (17). The two ends of the spring (18) are fixedly connected to the L-shaped positioning rod (16) and the rack (19) respectively. A driven gear (20) is fixedly connected to the surface of the spray pipe (10). The driven gear (20) meshes with the rack (19).

6. The fire safety protection device for anti-collision testing of new energy vehicle battery packs according to claim 5, characterized in that, A servo motor (21) is fixedly connected to the surface of the L-shaped positioning rod (16). A transmission shaft (22) is rotatably connected to the transmission end of the servo motor (21). A half-tooth gear (23) is fixedly connected to the end of the transmission shaft (22) away from the servo motor (21). The half-tooth gear (23) meshes with the rack (19).

Images