Energy storage battery explosion-proof shell sealing pressure resistance detection equipment
By combining components such as a pressure storage mechanism and an impact assembly, and utilizing the design of a guide block and a buffer electromagnet, the problem of inaccurate rebound distance detection in the explosion-proof housing sealing pressure resistance testing equipment for energy storage batteries was solved, thus achieving accurate detection of the housing material strength and reliable test results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGDONG CHENYU ELECTRIC POWER DESIGN CONSULTING CO LTD
- Filing Date
- 2025-12-11
- Publication Date
- 2026-07-14
AI Technical Summary
Existing energy storage battery explosion-proof housing sealing pressure resistance testing equipment suffers from residual pressure gas inside the sealing impact drive channel when using pneumatic impact, which hinders the rebound of the impact hammer, affects the rebound distance detection, and cannot effectively reduce speed and buffer, resulting in inaccurate test results.
The system combines a accumulator mechanism, an impact assembly, a guide assembly, a reset assembly, a positioning assembly, a projectile measuring assembly, and a buffer assembly. The guide block extends the guide of the impact hammer, and the buffer electromagnet reduces the rebound impact force, ensuring the accuracy of the impact hammer's rebound distance.
It enables accurate testing of the strength of the explosion-proof housing material of energy storage batteries, reduces energy loss, avoids collisions between the impact hammer and components, and improves testing efficiency and the reliability of results.
Smart Images
Figure CN121298459B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of pressure resistance testing technology for explosion-proof housings of energy storage batteries, specifically referring to a pressure resistance testing device for the explosion-proof housings of energy storage batteries. Background Technology
[0002] As one of the important carriers of electrical energy, batteries have advantages such as high energy density, large specific energy, long cycle life and safety. They are widely used in new energy vehicles and energy storage systems and are of great significance to the development of the new energy industry. For energy storage batteries, the sealing and pressure resistance performance of their explosion-proof shells are the core to ensure safety.
[0003] The existing testing equipment for the sealing and pressure resistance of explosion-proof housings for energy storage batteries has the following problems:
[0004] Existing energy storage battery explosion-proof housing sealing pressure resistance testing equipment uses pneumatic impact to test the housing pressure resistance strength. However, the residual pressure gas inside the sealing impact drive channel hinders the rebound of the impact hammer, thus affecting the detection of the impact hammer rebound distance. This makes it impossible to reflect the impact resistance strength of the housing material, and therefore it lacks the ability to test the strength of the housing material through the impact hammer rebound distance. Furthermore, traditional energy storage battery explosion-proof housing sealing pressure resistance testing equipment does not have the ability to decelerate or buffer the rebound impact hammer when using pneumatic impact to test the housing pressure resistance strength. This causes the rebound impact hammer to collide with the component structure, affecting the test results.
[0005] Therefore, it cannot meet the existing requirements for testing the sealing and pressure resistance of explosion-proof housings for energy storage batteries. Summary of the Invention
[0006] In response to the above situation and to overcome the shortcomings of the existing technology, this solution provides a sealing pressure resistance testing device for explosion-proof housings of energy storage batteries that can detect the strength of the housing material by measuring the rebound distance of the impact hammer, and can reduce and buffer the rebound speed of the impact hammer to ensure the accuracy of the test results.
[0007] The technical solution adopted in this solution is as follows: This solution proposes a pressure resistance testing device for the explosion-proof casing of an energy storage battery, including a base, a pressure box, a clamping frame, a pressure accumulator, a test mechanism, and a sample inspection mechanism. The pressure box is located on the base, and the clamping frame is located on the side wall of the pressure box. The pressure accumulator includes a charging component, a releasing component, and an impact component. The charging component is located on the side of the pressure box near the clamping frame, and the releasing component is located on the side of the pressure box away from the charging component. The impact component is located on the upper wall of the pressure box. The test mechanism includes a guiding component, a resetting component, a positioning component, and a sealing component. The guiding component is located on the impact component, and the resetting component and the sealing component are both located inside the impact component. The sealing component is located on the side near the resetting component, and the positioning component is located on the clamping frame. The sample inspection mechanism includes a test component and a buffer component. The test component is located on the upper wall of the impact component, and the buffer component is located on the inner wall of the impact component.
[0008] As a further preferred embodiment of the present invention, the pressurizing assembly includes a pressurizing pump and a pressure sensor. The pressurizing pump is located on the side of the pressure chamber near the clamping frame, with its pressurizing end penetrating inside the pressure chamber. The pressure sensor is located on the side wall of the pressure chamber, with its pressure measuring end penetrating inside the pressure chamber. The depressurization assembly includes a depressurization electric valve and a depressurization pipe. The depressurization electric valve is connected to the side of the pressure chamber away from the pressurizing pump, and the depressurization pipe is connected to the side of the depressurization electric valve away from the pressure chamber. The impact assembly includes an impact seat, an impact cylinder, a pneumatic pipe, and an impact hammer. The impact seat is located on the upper wall of the pressure chamber, and the impact cylinder is located on the upper wall of the impact seat. The impact cylinder is open at one end. The end of the depressurization pipe away from the depressurization electric valve is connected to the side wall of the impact cylinder. The pneumatic pipe is connected to the side of the depressurization pipe near the impact cylinder and is located inside the impact cylinder. The impact hammer is slidably located at the end of the impact cylinder away from the pneumatic pipe, and the impact hammer and the pneumatic pipe are arranged opposite each other.
[0009] During use, the charging pump fills the pressure tank with gas through the charging end, and the pressure sensor monitors the pressure inside the pressure tank in real time through the pressure measuring end. When the pressure inside the pressure tank reaches the preset threshold of the pressure sensor, the charging pump stops charging. At this time, the pressure relief electric valve opens, and the gas inside the pressure tank is transported to the pressure pipe through the pressure relief pipe. The pressure pipe ejects high-pressure gas to impact the impact hammer. The impact hammer slides along the impact cylinder to perform impact quality testing on the explosion-proof housing of the energy storage battery to be tested.
[0010] Preferably, the guiding assembly includes a guide groove and a guide block. The guide groove is located on the upper wall of the impact cylinder and is open on both sides. The guide block is located on the upper wall of the impact hammer, with one end of the guide block slidably disposed inside the guide groove away from the impact hammer. The resetting assembly includes a resetting electromagnet and a rebound magnet. The resetting electromagnet is located on the outer side of the pneumatic pipe near the impact hammer, and the rebound magnet is located on the side of the impact hammer near the resetting electromagnet. The resetting electromagnet and the rebound magnet are arranged opposite to each other. The positioning assembly includes a positioning platform and fixing bolts. The positioning platform is located on the upper wall of the clamping frame, and the fixing bolts are symmetrically located on both sides of the positioning platform and are threadedly connected to the positioning platform. The sealing assembly includes a sealing ring plate and a telescopic sleeve. The sealing ring plate is located on the inner wall of the impact cylinder between the resetting electromagnet and the impact hammer, and the telescopic sleeve is located between the sealing ring plate and the impact hammer.
[0011] In use, the reset electromagnet generates magnetism when energized. The reset electromagnet and the rebound magnet are set with opposite poles. The reset electromagnet is fixed to the end of the air pressure pipe near the impact hammer and attracts the rebound magnet through magnetic force. The rebound magnet drives the impact hammer to slide close to the air pressure pipe. The explosion-proof housing of the energy storage battery to be tested is placed on the bottom wall of the positioning platform. The fixing bolt is rotated, and the fixing bolt rotates along the positioning platform to position and clamp the explosion-proof housing of the energy storage battery. The impact hammer slides out of the impact cylinder under the push of high-pressure gas. The impact hammer drives the guide block to slide along the guide groove. The guide block extends and guides the impact path of the impact hammer. During the movement, the impact hammer stretches the telescopic sleeve, which seals the impact gas, so that all the energy of the high-pressure gas is applied to the impact hammer. The high-speed moving impact hammer impacts the explosion-proof housing of the energy storage battery fixed on the bottom wall of the positioning platform for impact testing.
[0012] Specifically, the projectile measuring assembly includes an exhaust port, a proximity switch, and a sensing block. The exhaust port is located on the bottom wall of the guide slide near the impact hammer. The guide slide is connected to the impact cylinder through the exhaust port. Multiple sets of the proximity switches are installed through the top of the impact seat. The sensing block is located on the upper wall of the guide block away from the impact hammer. The buffer assembly includes a buffer electromagnet and a sliding magnet. Multiple sets of the buffer electromagnets are located on the inner side wall of the top of the impact seat. The sliding magnet is located on the upper wall of the guide block near the sensing block.
[0013] In use, when the explosion-proof housing of the energy storage battery has high rigidity, the elastic deformation of the explosion-proof housing is very small at the moment of impact. Most of the impact energy is not absorbed by the housing, but is converted into the kinetic energy of the impact hammer, causing it to rebound quickly. When the impact hammer rebounds, it slides into the impact cylinder through the guide block along the guide groove. The buffer electromagnet is energized and generates magnetism. The buffer electromagnet and the sliding magnet are set with opposite poles. The buffer electromagnet is fixed to the inner wall of the impact seat and attracts the sliding magnet by magnetic force. The sliding magnet reduces the rebound impact force of the impact hammer through the guide block, avoiding the impact hammer and the impact cylinder from colliding and affecting its rebound result. Multiple sets of proximity switches sense the sensing block respectively, thereby detecting the rebound distance of the impact hammer, and thus indirectly reflecting the impact resistance quality of the explosion-proof housing of the energy storage battery.
[0014] To prevent the pressurized gas inside the impact cylinder from creating a gas spring effect that hinders the rebound of the impact hammer, when the impact hammer drives the guide block to slide along the guide groove, once the distance between the impact hammer and the surface of the explosion-proof housing of the energy storage battery is reduced to the distance specified by the operator, the guide block moves away from the upper part of the exhaust port, allowing the impact cylinder to communicate with the outside world. The gas inside the impact cylinder that has acted on the impact hammer is then discharged through the exhaust port, thereby ensuring the accuracy of the impact hammer rebound data and eliminating uncertainties.
[0015] The pressure tank is equipped with a controller on its side wall.
[0016] Preferably, the controller is electrically connected to the pressure sensor, the pressure relief electric valve, the reset electromagnet, the proximity switch, and the buffer electromagnet, respectively.
[0017] The beneficial effects achieved by this solution using the above structure are as follows:
[0018] Compared with existing technologies, this solution combines a pressure accumulator, a test mechanism, and a sample inspection mechanism. Through the inclusion of a pressurization assembly, a depressurization assembly, an impact assembly, a guide assembly, a reset assembly, a positioning assembly, a test assembly, and a buffer assembly, the pressurized gas, in a sealed environment, fully exerts its impact force on the impact hammer, creating a stable and continuous thrust. The guide block extends and guides the impact hammer, reducing its mass and minimizing energy loss of the pressurized gas. Simultaneously, it allows all the energy of the pressurized gas to be released, driving the impact hammer to impact the explosion-proof casing of the energy storage battery. Furthermore, after the guide block slides out of the exhaust port, the impact cylinder is connected to the outside environment, allowing the increased pressure gas inside the impact cylinder to flow out, thus avoiding the internal gas spring effect and ensuring the impact hammer's rebound is undisturbed. This improves the efficiency of detecting the quality of the explosion-proof casing material of the energy storage battery. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this solution;
[0020] Figure 2 This is the front perspective stereoscopic view of this solution;
[0021] Figure 3 This is a top-view perspective view of the proposed solution.
[0022] Figure 4 This is a schematic diagram of the combined structure of the sealing assembly, impact assembly, and guide assembly in this solution;
[0023] Figure 5 This is the main view of this solution;
[0024] Figure 6 This is a side view of the design.
[0025] Figure 7 This is a top view of the plan;
[0026] Figure 8 for Figure 7 Sectional view of AA section;
[0027] Figure 9 for Figure 1 Enlarged structural view of section I;
[0028] Figure 10 for Figure 8 Enlarged structural view of Part II.
[0029] The components are as follows: 1. Base; 2. Pressure box; 3. Clamping frame; 4. Accumulation mechanism; 5. Pressurization assembly; 6. Pressurization pump; 7. Pressure sensor; 8. Pressure release assembly; 9. Pressure release electric valve; 10. Pressure release pipe; 11. Impact assembly; 12. Impact seat; 13. Impact cylinder; 14. Air pressure pipe; 15. Impact hammer; 16. Impact testing mechanism; 17. Guide assembly; 18. Guide slide; 19. Guide block; 20. Reset assembly; 21. Reset electromagnet; 22. Rebound magnet; 23. Positioning assembly; 24. Positioning platform; 25. Fixing bolt; 26. Inspection mechanism; 27. Explosion testing assembly; 28. Exhaust port; 29. Proximity switch; 30. Sensing block; 31. Buffer assembly; 32. Buffer electromagnet; 33. Sliding magnet; 34. Controller; 35. Sealing assembly; 36. Sealing ring plate; 37. Telescopic sleeve.
[0030] The accompanying drawings are provided to further understand the present solution and form part of the specification. They are used together with the embodiments of the present solution to explain the present solution and do not constitute a limitation thereof. Detailed Implementation
[0031] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this solution, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this solution without creative effort are within the scope of protection of this solution.
[0032] In the description of this solution, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this solution and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this solution.
[0033] like Figures 1-10 As shown, the proposed solution provides a pressure resistance testing device for the explosion-proof casing of an energy storage battery, comprising a base 1, a pressure chamber 2, a clamping frame 3, a pressure accumulator 4, a test mechanism 16, and a sample inspection mechanism 26. The pressure chamber 2 is mounted on the base 1, and the clamping frame 3 is mounted on the side wall of the pressure chamber 2. The pressure accumulator 4 includes a charging component 5, a releasing component 8, and an impact component 11. The charging component 5 is located on the side of the pressure chamber 2 closest to the clamping frame 3, the releasing component 8 is located on the side of the pressure chamber 2 away from the charging component 5, and the impact component 11 is located on the side of the pressure chamber 2. The upper wall of the impact testing mechanism 16 includes a guide component 17, a reset component 20, a positioning component 23, and a sealing component 35. The guide component 17 is located on the impact component 11. The reset component 20 and the sealing component 35 are both located inside the impact component 11. The sealing component 35 is located on the side closer to the reset component 20. The positioning component 23 is located on the clamping frame 3. The inspection mechanism 26 includes a projectile testing component 27 and a buffer component 31. The projectile testing component 27 is located on the upper wall of the impact component 11, and the buffer component 31 is located on the inner wall of the impact component 11.
[0034] The pressurization assembly 5 includes a pressurization pump 6 and a pressure sensor 7. The pressurization pump 6 is located on the side of the pressure chamber 2 near the clamping frame 3, and its pressurization end extends through the interior of the pressure chamber 2. The pressure sensor 7 is located on the side wall of the pressure chamber 2, and its pressure measuring end extends through the interior of the pressure chamber 2. The pressure relief assembly 8 includes a pressure relief electric valve 9 and a pressure relief pipe 10. The pressure relief electric valve 9 is connected to the side of the pressure chamber 2 away from the pressurization pump 6, and the pressure relief pipe 10 is connected to the side of the pressure relief electric valve 9 away from the pressure chamber 2. The impact assembly 11 includes an impact... The impact chamber 12, impact cylinder 13, pneumatic pipe 14, and impact hammer 15 are provided. The impact chamber 12 is located on the upper wall of the pressure box 2. The impact cylinder 13 is located on the upper wall of the impact chamber 12. The impact cylinder 13 is open at one end. The end of the pressure relief pipe 10 away from the pressure relief electric valve 9 is connected to the side wall of the impact cylinder 13. The pneumatic pipe 14 is connected to the side of the pressure relief pipe 10 near the impact cylinder 13 and is located inside the impact cylinder 13. The impact hammer 15 is slidably located at the end of the impact cylinder 13 away from the pneumatic pipe 14. The impact hammer 15 and the pneumatic pipe 14 are arranged opposite to each other.
[0035] The guide assembly 17 includes a guide groove 18 and a guide block 19. The guide groove 18 is located on the upper wall of the impact cylinder 13 and is open on both sides. The guide block 19 is located on the upper wall of the impact hammer 15, with one end of the guide block 19 slidably disposed inside the guide groove 18 away from the impact hammer 15. The reset assembly 20 includes a reset electromagnet 21 and a rebound magnet 22. The reset electromagnet 21 is located on the outer side of the pneumatic pipe 14 near the impact hammer 15, and the rebound magnet 22 is located on the outer side of the impact hammer 15 near the reset electromagnet 21. On one side, the reset electromagnet 21 and the rebound magnet 22 are arranged opposite to each other; the positioning assembly 23 includes a positioning platform 24 and fixing bolts 25. The positioning platform 24 is located on the upper wall of the clamping frame 3, and the fixing bolts 25 are symmetrically arranged on both sides of the positioning platform 24. The fixing bolts 25 are threadedly connected to the positioning platform 24; the sealing assembly 35 includes a sealing ring plate 36 and a telescopic sleeve 37. The sealing ring plate 36 is located on the inner wall of the impact cylinder 13 between the reset electromagnet 21 and the impact hammer 15, and the telescopic sleeve 37 is located between the sealing ring plate 36 and the impact hammer 15.
[0036] The projectile measuring assembly 27 includes an exhaust port 28, a proximity switch 29, and a sensing block 30. The exhaust port 28 is located on the bottom wall of the guide slide 18 near the impact hammer 15. The guide slide 18 is connected to the impact cylinder 13 through the exhaust port 28. Multiple proximity switches 29 are installed through the top of the impact seat 12. The sensing block 30 is located on the upper wall of the guide block 19 away from the impact hammer 15. The buffer assembly 31 includes a buffer electromagnet 32 and a sliding magnet 33. Multiple buffer electromagnets 32 are installed on the inner side wall of the top of the impact seat 12. The sliding magnet 33 is installed on the upper wall of the guide block 19 near the sensing block 30.
[0037] The pressure tank 2 has a controller 34 installed on its side wall.
[0038] The controller 34 is electrically connected to the pressure sensor 7, the pressure relief electric valve 9, the reset solenoid 21, the proximity switch 29 and the buffer solenoid 32 respectively.
[0039] In practical use, the explosion-proof housing of the energy storage battery to be tested is placed on the bottom wall of the positioning platform 24. The fixing bolt 25 is rotated, and the fixing bolt 25 rotates along the positioning platform 24 to position and clamp the explosion-proof housing of the energy storage battery. The controller 34 controls the start of the charging pump 6. The charging pump 6 charges gas into the pressure box 2 through the charging end. The pressure sensor 7 monitors the pressure inside the pressure box 2 in real time through the pressure measuring end. When the pressure value inside the pressure box 2 reaches the threshold preset by the pressure sensor 7, the charging pump 6 stops charging gas into the pressure box 2. The controller 34 controls the start of the reset electromagnet 21. The reset electromagnet 21 generates magnetism when energized. The reset electromagnet 21 and the rebound magnet 22 are set with opposite poles. The reset electromagnet 21 is fixed at the end of the air pressure pipe 14 near the impact hammer 15 and attracts the rebound magnet 22 by magnetic force. The rebound magnet 22 drives the impact hammer 15 to slide close to the air pressure pipe 14. The impact hammer 15 is located inside the impact cylinder 13, and the guide block 19 is located inside the guide groove 18.
[0040] At this time, the controller 34 controls the pressure relief electric valve 9 to open, and the pressurized gas inside the pressure tank 2 is transported to the pressure pipe 14 through the pressure relief pipe 10. The pressure pipe 14 sprays the high-pressure gas onto the impact hammer 15. The impact hammer 15 slides out of the impact cylinder 13 under the push of the high-pressure gas. The impact hammer 15 drives the guide block 19 to slide along the guide groove 18. The guide block 19 extends and guides the impact path of the impact hammer 15. During the movement, the impact hammer 15 stretches the telescopic sleeve 37, which seals the impact gas, so that all the energy of the high-pressure gas is applied to the impact hammer 15. The high-speed moving impact... The hammer 15 impacts the explosion-proof housing of the energy storage battery fixed to the bottom wall of the positioning platform 24. When the guide block 19 drives the sensing block 30 out of the sensing range of the last set of proximity switches 29, the controller 34 controls the buffer electromagnet 32 to start. The buffer electromagnet 32 is energized and generates magnetism. The buffer electromagnet 32 and the sliding magnet 33 are set with opposite poles. The buffer electromagnet 32 is fixed to the inner side wall of the impact seat 12 and magnetically attracts the sliding magnet 33. The sliding magnet 33 reduces the rebound impact force of the hammer 15 through the guide block 19, so as to avoid the impact hammer 15 and the impact cylinder 13 from colliding and affecting its rebound result.
[0041] To prevent the pressurized gas inside the impact cylinder 13 from generating a gas spring effect that hinders the rebound of the impact hammer 15, when the impact hammer 15 drives the guide block 19 to slide along the guide groove 18, after the distance between the impact hammer 15 and the surface of the explosion-proof housing of the energy storage battery is shortened to a preset distance, the guide block 19 leaves the upper part of the exhaust port 28, so that the impact cylinder 13 is connected to the outside. The pressurized gas inside the impact cylinder 13 acting on the impact hammer 15 is discharged through the exhaust port 28, thereby ensuring the accuracy of the rebound data of the impact hammer 15 and eliminating uncertainties.
[0042] After the impact hammer 15 strikes the explosion-proof housing of the energy storage battery, due to the high rigidity of the housing, the elastic deformation of the housing is small at the moment of impact. Most of the impact energy is not absorbed by the housing but is converted into the kinetic energy of the hammer 15, causing it to rebound rapidly. During the rebound, the hammer 15 slides along the guide groove 18 through the guide block 19 into the impact cylinder 13. Multiple proximity switches 29 sense the sensing block 30, thereby detecting the rebound distance of the hammer 15. If a proximity switch 29 farther from the explosion-proof housing senses the sensing block 30, it indicates that the material strength of the housing is higher and the structural design is more reasonable. Conversely, it indicates that the material strength is lower and the structural design is relatively unreasonable, thus indirectly reflecting the impact resistance of the housing and completing the inspection of the explosion-proof housing. The above procedure can be repeated for the next use.
[0043] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0044] The present solution and its implementation methods have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present solution; the actual structure is not limited to this. In conclusion, if a person skilled in the art, inspired by this description, designs a similar structure and embodiment without departing from the inventive intent of this solution, such design should fall within the protection scope of this solution.
Claims
1. A pressure resistance testing device for the explosion-proof casing of an energy storage battery, characterized in that: It includes a base, a pressure box, a clamping frame, a pressure accumulator, a punching and testing mechanism, and a sample inspection mechanism; the pressure box is mounted on the base, and the clamping frame is mounted on the side wall of the pressure box; The pressure storage mechanism includes a pressure charging component, a pressure releasing component, and an impact component. The pressure charging component is located on the side of the pressure box near the clamping frame, the pressure releasing component is located on the side of the pressure box away from the pressure charging component, and the impact component is located on the upper wall of the pressure box. The impact testing mechanism includes a guide assembly, a reset assembly, a positioning assembly, and a sealing assembly. The guide assembly is located on the impact assembly, the reset assembly and the sealing assembly are both located inside the impact assembly, the sealing assembly is located on the side closer to the reset assembly, and the positioning assembly is located on the clamping frame. The pressure relief assembly includes a pressure relief tube; The guiding component includes a guide block; The impact assembly includes an impact seat, an impact cylinder, a pneumatic pipe, and an impact hammer; the impact seat is located on the upper wall of the pressure box, the impact cylinder is located on the upper wall of the impact seat and has one end open, the pneumatic pipe is connected to the pressure relief pipe and is located inside the impact cylinder, and the impact hammer is slidably located at the end of the impact cylinder away from the pneumatic pipe and opposite to the pneumatic pipe. The sample collection mechanism includes a projectile measuring component and a buffer component. The projectile measuring component is located on the upper wall of the impact component, and the buffer component is located on the inner wall of the impact component. The projectile measuring component includes an exhaust port, which connects the impact component to the outside to prevent residual gas from hindering the rebound of the impact hammer. The buffer component is used to buffer the impact force of the rebound of the impact hammer, the reset component is used to drive the impact hammer to reset, the sealing component is used to seal the impact gas, and the projectile measuring component detects the rebound distance of the impact hammer through a sensing structure. When the distance between the impact hammer and the surface of the explosion-proof housing of the energy storage battery is shortened to the preset distance, the guide block leaves the upper part of the exhaust port, so that the impact cylinder is connected to the outside world, and the pressure gas inside the impact cylinder acting on the impact hammer is discharged through the exhaust port.
2. The energy storage battery explosion-proof housing sealing pressure resistance testing device according to claim 1, characterized in that: The pressurization assembly includes a pressurization pump and a pressure sensor. The pressurization end of the pressurization pump is installed inside the pressure chamber, and the pressure measuring end of the pressure sensor is installed inside the pressure chamber.
3. The energy storage battery explosion-proof housing sealing pressure resistance testing device according to claim 1, characterized in that: The pressure relief assembly also includes a pressure relief electric valve, which is connected to the side of the pressure tank away from the pressurization assembly. One end of the pressure relief pipe is connected to the pressure relief electric valve, and the other end is connected to the impact assembly.
4. The energy storage battery explosion-proof housing sealing pressure resistance testing device according to claim 1, characterized in that: The guiding assembly also includes a guide groove; the guide groove is located on the upper wall of the impact cylinder and is open on both sides, and the guide block is located on the upper wall of the impact hammer, with the end of the guide block away from the impact hammer slidably located in the guide groove.
5. The energy storage battery explosion-proof housing sealing pressure resistance testing device according to claim 1, characterized in that: The reset assembly includes a reset electromagnet and a rebound magnet; the reset electromagnet is located on the outer side of the pneumatic tube near the impact hammer, and the rebound magnet is located on the side of the impact hammer near the reset electromagnet, with the reset electromagnet and the rebound magnet having opposite poles.
6. The energy storage battery explosion-proof housing sealing pressure resistance testing device according to claim 1, characterized in that: The positioning assembly includes a positioning platform and fixing bolts; the positioning platform is located on the upper wall of the clamping frame, and the fixing bolts are symmetrically located on both sides of the positioning platform and are threadedly connected to the positioning platform.
7. The energy storage battery explosion-proof housing sealing pressure resistance testing device according to claim 1, characterized in that: The sealing assembly includes a sealing ring plate and a telescopic sleeve; the sealing ring plate is located on the inner wall of the impact cylinder between the reset electromagnet and the impact hammer, and the telescopic sleeve is located between the sealing ring plate and the impact hammer.
8. The energy storage battery explosion-proof housing sealing pressure resistance testing device according to claim 1, characterized in that: The projectile measuring assembly also includes multiple sets of proximity switches and sensing blocks; the proximity switches are installed through the top of the impact seat, and the sensing blocks are installed on the upper wall of the guide block at the end away from the impact hammer; the buffer assembly includes multiple sets of buffer electromagnets and sliding magnets, the buffer electromagnets are installed on the inner side wall of the top of the impact seat, and the sliding magnets are installed on the upper wall of the guide block at the end near the sensing block, with the buffer electromagnets and sliding magnets having opposite poles.
9. The energy storage battery explosion-proof housing sealing pressure resistance testing device according to claim 1, characterized in that: The pressure tank is equipped with a controller on its side wall, which is electrically connected to the pressure sensor, the pressure relief electric valve, the reset electromagnet, the proximity switch, and the buffer electromagnet.