Equipment and method for detecting explosion-proof performance of battery of new energy automobile

Abstract

The invention relates to the field of battery testing, and particularly discloses equipment and a method for detecting the explosion-proof performance of a battery of a new energy automobile, which are used for solving the problem of single battery test in the prior art. Comprising a test box, a base is arranged at the bottom of the test box, a plurality of supporting legs are arranged at the lower end of the base and the lower end of the test box, a lifting component used for lifting a battery is arranged at the upper end of the base, and a battery positioning component used for locking the position of the battery is arranged in the test box. The upper end of the test box is provided with an impact part used for generating impact force on the upper end face of the battery positioning part. The device is designed according to existing requirements, the battery can be subjected to a beating test and a vibration test, the vibration amplitude can be adjusted according to requirements, in addition, the battery can be turned over, and therefore the reliability of battery test data is improved by combining vibration and impact of the battery.

Description

Technical Field

[0001] The present invention relates to the field of battery testing, and in particular to equipment and methods for testing explosion-proof performance of batteries for new energy vehicles. Background Art

[0002] Lithium battery is a common type of battery. When in use, multiple lithium battery cells are usually combined into a battery system according to a specific configuration and connection method, that is, a lithium battery pack. In order to ensure the safety of lithium battery packs, mechanical explosion-proof performance tests are required. The explosion-proof performance tests mainly include: impact test, which is designed to simulate the battery short circuit caused by accidental impact or collision; extrusion test, which can simulate the situation where the battery is squeezed by hard objects or damaged by external forces; vibration test, which can simulate the battery damage caused by vibration during transportation or use;

[0003] The existing patent announcement number CN117433734B discloses a high and low temperature explosion-proof test system for lithium batteries. The system tests the battery performance by striking different positions on the surface of the battery pack. However, the test method here is only striking. During driving, the vehicle must withstand various bumps and vibrations. The existing technology can only detect impacts on the top and sides of the battery pack. However, this detection cannot detect the bottom and the bump amplitude, thereby reducing the reliability of data collection.

[0004] Based on this, a new energy vehicle battery explosion-proof performance testing device and method are now provided to eliminate the drawbacks of existing devices. Summary of the invention

[0005] The purpose of the present invention is to provide a new energy vehicle battery explosion-proof performance detection device and method, which solves the problem of single battery testing in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] New energy vehicle battery explosion-proof performance testing equipment includes a test box, a base is provided at the bottom of the test box, a plurality of legs are provided at the base and the lower end of the test box, a lifting component for lifting the battery is provided at the upper end of the base, a battery positioning component for locking the battery position is provided inside the test box, an impact component for generating an impact force on the upper end surface of the battery positioning component is provided at the upper end of the test box, the test box is open on one side facing the lifting component, a movable door group is provided at the opening position, and an observation window is also provided on the outer side of the test box.

[0008] On the basis of the above technical solution, the present invention also provides the following optional technical solution:

[0009] In an optional scheme: the impact component includes a guide shell arranged at the upper end of the test box, a floating slide is slidingly provided on the inner wall of the guide shell, the upper end of the floating slide is connected to a height-adjusting push rod for driving the floating slide to slide, an impact base is provided on the test box frame above the guide shell, the impact base is connected to the test box through an impact connecting rod, the height-adjusting push rod is fixedly set on the impact base, an impact base is provided below the floating slide, the impact base is connected to the bottom of the floating slide through a plurality of adjusting rotating columns, a plurality of impact arc frames are distributed in an array at the lower end of the impact base, a plurality of impact heads are provided at the lower end of each impact arc frame, and an impact adjusting member for driving the plurality of impact arc frames to open or contract is provided on the impact base.

[0010] In an optional scheme: the impact adjustment member includes a positioning link rotatably set in the middle position of the impact base, the outer side of the positioning link is fixedly connected to the expansion gear ring through a radiation rod, the outer side of the expansion gear ring is meshed with multiple expansion gears, the expansion gear is fixedly set at the end of the driving shaft, the driving shaft is rotatably set on the impact base, the lower end of the driving shaft is connected to the inner end of the impact arc frame, the upper end of the positioning link is provided with an impact adjustment worm gear, the positioning link is rotatably set on the floating slide, one side of the impact adjustment worm gear is meshed with an impact adjustment worm, one end of the impact adjustment worm is rotatably connected to the fixed block on the floating slide, and the other end of the impact adjustment worm is connected to an impact adjustment motor for driving it to rotate.

[0011] Material toggling mechanism, its both ends are to be connected with the rotation of the steering wheel, and the steering wheel is in the rotation with a forward direction, and the steering wheel is in the rotation with a forward direction, and a steering wheel is in the rotation with a turning direction.

[0012] In an optional scheme: the flip clamping member includes two clamping sliders slidably arranged on the upper end surface of the floating platform, the clamping slider threadedly arranged on the clamping screw, the clamping screw is provided with two threaded areas with opposite rotation directions corresponding to the clamping slider, one end of the clamping screw is rotatably connected to the fixed block on the floating platform, and the other end of the clamping screw is connected to a clamping motor for driving it to rotate, the upper end of the clamping slider is connected to the clamping plate through a clamping connecting seat, and the clamping surfaces of the two clamping plates are distributed with a plurality of floating sliding holes, each floating sliding hole is slidably provided with a floating pin, the floating pin is connected to the floating sliding hole by a spring, a plurality of floating pins constitute a clamping surface, and the clamping surface here can match the shape of the battery, each clamping plate is connected to the end of the flip shaft on the clamping connecting seat, a flip worm gear is provided at the outer end of the flip shaft, the outer side of the flip worm gear is meshed with the flip worm, the two ends of the flip worm are rotatably connected to the fixed frame on the clamping connecting seat, and the flip worm is connected to a reversing motor for driving it to rotate, and the reversing motor is a synchronous motor.

[0013] In an optional scheme: the vibration driving component includes a pushing plate connected to the bottom of the floating platform, the lower end of the pushing plate is rotatably connected to the transmission connecting rod, the lower end of the transmission connecting rod is rotatably connected to the eccentric slider, the eccentric slider is slidably arranged on the surface of the driving disk, and the driving disk is provided with a linear pushing unit for driving the position adjustment of the eccentric slider, the rotating shaft at the end of the driving disk is rotatably connected to the bearing frame at the upper end of the support seat, a vibration worm gear is fixedly provided at the end of the driving disk, the vibration worm gear and the vibration worm are meshed with each other, one end of the vibration worm is fixedly connected to the output end of the vibration motor group, and the other end of the vibration motor group and the vibration worm is connected to the vibration bracket group on the support seat.

[0014] In an optional scheme: the linear pushing unit includes an eccentric screw arranged along the diameter direction of the driving disk, the eccentric screw matches the threaded hole on the eccentric slider, one end of the eccentric screw is rotatably connected to the fixed block on the driving disk, and the other end of the eccentric screw is connected to an eccentric adjustment motor for driving the eccentric screw to rotate, the eccentric adjustment motor is fixedly set on the driving disk, an eccentric guide rod is slidably provided in the guide hole on the eccentric slider, and both ends of the eccentric guide rod are fixedly connected to the fixed block on the driving disk.

[0015] In an optional solution: the rotating member includes a steering motor fixedly arranged on the outside of the adjusting base ring, and a steering gear is provided at the output end of the steering motor, and the steering gear is meshed with the tooth surface on the outside of the adjusting gear disc.

[0016] In an optional solution: the movable door group includes a movable door arranged at the opening position of the test box, the movable door is slidably arranged with the test box, the upper end of the movable door is connected to a door opening push rod for driving it to slide along the side of the test box, and the door opening push rod is fixedly arranged at the upper end of the test box.

[0017] In an optional solution: the lifting component includes a lifting vertical plate fixedly arranged at the end of the base, a lifting slider is slidably provided on the surface of the lifting vertical plate, a lifting screw is threadedly provided on the lifting slider, the upper end of the lifting screw is connected to the output end of the lifting motor, and the lifting motor is fixedly arranged on the surface of the lifting vertical plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention is designed according to existing needs. It can not only perform impact tests on batteries, but also perform vibration tests on batteries. The amplitude of vibration can be adjusted as needed. In addition, the battery can be turned over to combine its vibration and impact, so that the reliability of battery test data can be improved.

[0020] 2. When clamping the battery, the present invention constructs a floating surface for clamping so as to clamp batteries of different shapes, and uses a worm gear structure for flipping. This self-locking structure is used to maintain the test state of the battery. During the test, the battery can also be driven to rotate so that the impact force on the battery surface is more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of one side of the present invention.

[0022] Figure 2 It is a structural schematic diagram of another side of the present invention.

[0023] Figure 3 It is a schematic diagram of the lower structure of the present invention.

[0024] Figure 4 It is a schematic diagram of the internal structure of the present invention.

[0025] Figure 5 It is a schematic diagram of the upper structure of the battery positioning component of the present invention.

[0026] Figure 6 It is a schematic diagram of the lower structure of the battery positioning component of the present invention.

[0027] Figure 7 It is a structural schematic diagram of one side of the drive disk of the present invention.

[0028] Figure 8 It is a schematic diagram of the structure of the other side of the driving disk of the present invention.

[0029] Fig. 9 It is a schematic structural diagram of one side of the impact component of the present invention.

[0030] Fig.10 It is a schematic diagram of the bottom structure of the impact component of the present invention.

[0031] Fig.11 It is a schematic diagram of the impact base structure of the present invention.

[0032] Reference numerals: test box 100, base 101, movable door 102, door opening push rod 103, supporting leg 104;

[0033] Lifting component 200, lifting vertical plate 201, lifting slider 202, lifting support plate 203, lifting screw rod 204, lifting motor 205;

[0034] Impact component 300, impact base 301, height adjustment push rod 302, impact connecting rod 303, impact adjustment motor 304, floating slide 305, impact base plate 306, impact adjustment worm 307, impact adjustment worm wheel 308, guide housing 309, adjustment rotating column 310, expansion gear 311, impact arc frame 312, impact head 313, expansion gear ring 314, radiation rod 315, positioning connecting rod 316;

[0035] Battery positioning component 400, horizontal sliding seat 402, supporting seat 403, walking wheel 404, horizontal push rod 405, steering motor 406, steering gear 407, adjusting base ring 408, adjusting toothed disc 409, clamping screw 410, clamping slider 411, clamping motor 412, floating pin 413, reversing motor 414, clamping plate 415, flip worm gear 416, flip worm 417, clamping connecting seat 418, floating platform 419, floating spring 420, floating slide 421, vibrating worm 422, vibrating worm gear 423, vibrating bracket group 424, vibrating motor group 425, center opening 426, pushing plate 427, transmission connecting rod 428, driving disk 429, eccentric slider 430, eccentric screw 431, eccentric guide rod 432, eccentric adjustment motor 433. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] like Figure 1-Figure 11As shown, an embodiment of the present invention provides an explosion-proof performance testing device for a new energy vehicle battery, including a test box 100, wherein a base 101 is provided at the bottom of the test box 100, and a plurality of legs 104 are provided at the base 101 and the lower end of the test box 100, and a lifting component 200 for lifting the battery is provided at the upper end of the base 101, and a battery positioning component 400 for locking the battery position is provided inside the test box 100, and an impact component 300 for generating an impact force on the upper end surface of the battery positioning component 400 is provided at the upper end of the test box 100, and the test box 100 is opened on one side facing the lifting component 200, and a movable door group is provided at the opening position, and the battery is lifted up by the lifting component 200, and then the battery positioning component 400 is moved out and fixed, and then the battery is transferred into the test box 100, and then the test box 100 is closed by the movable door group, and the test is performed with the help of the impact component 300;

[0038] The test box 100 is also provided with an observation window on its outer side so as to observe the internal test status thereof;

[0039] The impact component 300 includes a guide shell 309 disposed at the upper end of the test box 100, a floating slide 305 is slidably disposed on the inner wall of the guide shell 309, and the upper end of the floating slide 305 is connected to a height adjustment push rod 302 for driving the floating slide 305 to slide. An impact base 301 is mounted on the test box 100 above the guide shell 309, and the impact base 301 is connected to the test box 100 through an impact connecting rod 303. The height adjustment push rod 302 is fixedly disposed on the impact base 301, and the floating slide 305 is disposed below the guide shell 309. An impact base 306 is provided, and the impact base 306 is connected to the bottom of the floating slide 305 through multiple adjustment rotating columns 310. A plurality of impact arc frames 312 are arranged in an array at the lower end of the impact base 306, and a plurality of impact heads 313 are arranged at the lower end of each impact arc frame 312. An impact adjustment member for driving the plurality of impact arc frames 312 to open or contract is provided on the impact base 306. The plurality of impact arc frames 312 are driven to rotate by the impact adjustment member, so as to adjust the impact area according to the size of the test battery, so that the equipment test range is guaranteed;

[0040] like Figure 9-11As shown, the impact adjustment member includes a positioning link 316 rotatably set in the middle position of the impact base 306, the outer side of the positioning link 316 is fixedly connected to the expansion gear ring 314 through a radiation rod 315, the outer side of the expansion gear ring 314 is meshed with a plurality of expansion gears 311, and the expansion gear 311 is fixedly set at the end of the driving shaft, the driving shaft is rotatably set on the impact base 306, the lower end of the driving shaft is connected to the inner end of the impact arc frame 312, the upper end of the positioning link 316 is provided with an impact adjustment worm gear 308, the positioning link 316 is rotatably set on the floating slide 305, and the impact adjustment An impact adjustment worm 307 is meshed with one side of the worm wheel 308, one end of the impact adjustment worm 307 is rotatably connected to the fixed block on the floating slide 305, and the other end of the impact adjustment worm 307 is connected to the impact adjustment motor 304 for driving the impact adjustment worm 307 to rotate. Driven by the impact adjustment motor 304, the impact adjustment worm 307 matches the impact adjustment worm wheel 308, thereby driving the positioning link 316 to rotate, the positioning link 316 drives the expansion gear ring 314 to rotate through the radiation rod 315, and the expansion gear ring 314 drives the impact arc frame 312 to rotate through the expansion gear 311, thereby providing power for adjustment;

[0041] like Figure 4-9 As shown, the battery positioning component 400 includes a horizontal sliding seat 402 slidably arranged with the upper end of the base 101, and walking wheels 404 are rotatably arranged at both ends of the horizontal sliding seat 402. A horizontal push rod 405 for driving the horizontal sliding seat 402 to move horizontally is arranged on the outer side of the test box 100; a support seat 403 is fixedly arranged on the upper end of the horizontal sliding seat 402, and an adjustment base ring 408 is arranged above the support seat 403. The adjustment base ring 408 is connected to the support seat 403 through a plurality of horizontal push rods 405, and an adjustment toothed disc 409 is rotatably arranged on the upper end of the adjustment base ring 408, and a central opening 42 is arranged at the center position of the adjustment toothed disc 409. 6. The adjusting toothed disc 409 is connected to a rotating member for driving the adjusting toothed disc 409 to rotate. A floating platform 419 is provided above the central opening 426. A plurality of floating slide bars 421 are provided at the lower end of the floating platform 419. The floating slide bars 421 slide through the slide holes on the adjusting toothed disc 409. A floating spring 420 is sleeved on the floating slide bars 421 to connect the floating platform 419 and the adjusting toothed disc 409. The floating platform 419 is connected to a vibration driving member for driving the adjusting toothed disc 409 to bump up and down. A flip clamp for clamping the battery is provided on the floating platform 419. The battery can be fixed by the flip clamp, and the battery can also be turned, so that multiple parts of the battery can be stressed.

[0042] The flip clamping member includes two clamping sliders 411 slidably arranged on the upper end surface of the floating platform 419, the clamping slider 411 is threadedly arranged on the clamping screw 410, and the clamping screw 410 is provided with two threaded areas with opposite rotation directions corresponding to the clamping slider 411, one end of the clamping screw 410 is rotatably connected to the fixed block on the floating platform 419, and the other end of the clamping screw 410 is connected to the clamping motor 412 used to drive it to rotate, under the action of the clamping motor 412, the clamping slider 411 and the clamping screw 410 rotate relative to each other, under the action of the thread, the two clamping sliders 411 approach or move away from each other to provide power for clamping, the upper end of the clamping slider 411 is connected to the clamping plate 415 through the clamping connecting seat 418, and the clamping surfaces of the two clamping plates 415 are distributed with a plurality of floating sliding holes, and a floating pin 413 is slidably provided in each floating sliding hole, and the floating pin 4 13 is connected to the floating slide hole by a spring, and multiple floating pins 413 constitute a clamping surface, and the clamping surface here can match the battery shape, thereby improving the clamping effect. Each clamping plate 415 is connected to the end of the flip shaft on the clamping connection seat 418, and a flip worm wheel 416 is provided at the outer end of the flip shaft. The outer side of the flip worm wheel 416 is meshed with a flip worm 417, and the two ends of the flip worm 417 are rotatably connected to the fixed frame on the clamping connection seat 418. The flip worm 417 is connected to a reversing motor 414 for driving it to rotate. The reversing motor 414 is a synchronous motor, and the reversing motor 414 drives the flip worm 417 to rotate. The flip worm 417 matches the flip worm wheel 416, thereby driving the clamping plate 415 to rotate, so that the clamped battery is flipped, so that different positions of the battery are subjected to impact tests, so that the test data is more sufficient;

[0043] The worm gear structure is used here, which has self-locking performance and can maintain the flipping state of the battery;

[0044] The vibration driving member includes a pushing plate 427 connected to the bottom of the floating platform 419, the lower end of the pushing plate 427 is rotatably connected to the transmission connecting rod 428, the lower end of the transmission connecting rod 428 is rotatably connected to the eccentric slider 430, the eccentric slider 430 is slidably arranged on the surface of the driving disk 429, and the driving disk 429 is provided with a linear pushing unit for driving the position adjustment of the eccentric slider 430, the rotating shaft at the end of the driving disk 429 is rotatably connected to the bearing frame at the upper end of the support seat 403, and a vibration worm gear 423 is fixedly provided at the end of the driving disk 429, the vibration worm gear 423 and the vibration worm 422 are meshed with each other, and one end of the vibration worm 422 is connected to the vibration motor group 4 25 output end is fixedly connected, the other end of the vibration motor group 425 and the vibration worm 422 is connected to the vibration bracket group 424 on the support seat 403, the vibration motor group 425 and the vibration bracket group 424 are fixedly connected, the vibration worm 422 and the vibration bracket group 424 are rotationally connected, under the drive of the vibration motor group 425, the vibration worm 422 matches the vibration worm wheel 423, thereby driving the driving disk 429 to rotate, the driving disk 429 drives the eccentric slider 430 to rotate, and the eccentric slider 430 drives the floating platform 419 to float up and down through the transmission connecting rod 428 and the push plate 427, and the battery on the floating platform 419 is bumped and vibrated by using this crank-connecting rod structure;

[0045] like Figure 8 As shown, the linear pushing unit includes an eccentric screw 431 arranged along the diameter direction of the driving disk 429, the eccentric screw 431 matches the threaded hole on the eccentric slider 430, one end of the eccentric screw 431 is rotatably connected to the fixed block on the driving disk 429, and the other end of the eccentric screw 431 is connected to an eccentric adjustment motor 433 for driving the rotation thereof, the eccentric adjustment motor 433 is fixedly arranged on the driving disk 429, an eccentric guide rod 432 is slidably provided in the guide hole on the eccentric slider 430, both ends of the eccentric guide rod 432 are fixedly connected to the fixed blocks on the driving disk 429, under the action of the eccentric adjustment motor 433, the eccentric guide rod 432 and the eccentric slider 430 rotate relative to each other, and under the action of the thread, the eccentric slider 430 slides along the eccentric guide rod 432, thereby causing the eccentric slider 430 to deviate from the center of the circle, thereby adjusting the vibration amplitude;

[0046] like Figure 5 As shown, the rotating member includes a steering motor 406 fixedly arranged on the outside of the adjusting base ring 408, and a steering gear 407 is provided at the output end of the steering motor 406, and the steering gear 407 is meshed with the tooth surface on the outside of the adjusting toothed disc 409, and the steering gear 407 is driven to rotate by the steering motor 406, and the steering gear 407 matches the tooth surface to drive the adjusting toothed disc 409 to rotate;

[0047] like Figure 1-Figure 3As shown, the movable door group includes a movable door 102 arranged at the opening position of the test box 100, the movable door 102 is slidably arranged with the test box 100, the upper end of the movable door 102 is connected to a door opening push rod 103 for driving it to slide along the side of the test box 100, and the door opening push rod 103 is fixedly arranged at the upper end of the test box 100. The movable door 102 is driven to move horizontally by the door opening push rod 103, so that the opening position of the test box 100 can be blocked, so that the test is in a closed environment, which improves the safety of the test;

[0048] like Figure 2 As shown, the lifting component 200 includes a lifting vertical plate 201 fixedly arranged at the end of the base 101, a lifting slider 202 is slidably arranged on the surface of the lifting vertical plate 201, a lifting screw 204 is threadedly arranged on the lifting slider 202, and the upper end of the lifting screw 204 is connected to the output end of the lifting motor 205, and the lifting motor 205 is fixedly arranged on the surface of the lifting vertical plate 201. When in use, the lifting screw 204 and the lifting slider 202 are driven by the lifting motor 205 to rotate relative to each other. Under the action of the thread, the lifting support plate 203 is lowered to a position flush with the base 101, and then the battery is placed on the lifting support plate 203, and then the lifting support plate 203 is driven by the lifting slider 202 to lift to the target position, so that the battery can be clamped and fixed later;

[0049] The clamping plate 415 is provided with a leakage detection component for detecting the battery and a charging detection component for charging the battery. The functions of these two components are to detect whether the battery has leakage and normal charging problems after impact or vibration testing, so as to make the quality inspection of the battery more comprehensive;

[0050] Whether the battery can be charged normally: measure the charging current, connect the ammeter in series in the charging circuit, and measure the size of the charging current. Under normal circumstances, the charging current should be within the range specified by the charger or battery. If the charging current is too large or too small, it may indicate that there is a problem in the charging process. For example, the charging current of a general car battery should be about 1 / 10 of the battery capacity;

[0051] The leakage detection here can be: infrared thermal imaging detection method, current detection method;

[0052] Use an ammeter or multimeter with the current range to connect it in series between the battery and the circuit. For leakage detection of larger capacity batteries such as car batteries, you need to first turn off all electrical devices in the car, remove the negative terminal of the battery, and then connect the red test lead of the ammeter or multimeter to the battery line, and the black test lead to the negative terminal of the battery, and observe the current value. If the current value exceeds the normal range, it means that the battery is leaking;

[0053] When a battery leaks, the leaking part will generate heat due to the current passing through, causing the local temperature to rise. Infrared thermal imagers can capture this temperature difference and convert it into a visible thermal image, thereby intuitively showing the leaking part. Connect the battery to a normal working circuit or charging circuit to put it in working condition, and then use an infrared thermal imager to scan and photograph the battery surface. Observe whether there is an abnormally high temperature area in the thermal image. If so, it indicates that there may be a leakage fault in this part.

[0054] Working principle: In actual use, the battery to be tested is lifted to a predetermined position by the lifting component 200, and then the horizontal sliding seat 402 is pushed by the horizontal push rod 405, so that the support seat 403 moves to the position of the lifting component 200. Under the action of the clamping motor 412, the clamping slider 411 and the clamping screw 410 rotate relative to each other. Under the action of the thread, the two clamping sliders 411 approach each other, so that the clamping plate 415 completes the clamping of the battery. Then, the battery is transferred into the test box 100 by the horizontal push rod 405, and the movable door group is closed to perform the vibration test first.

[0055] Then, the vibration test is started. Under the drive of the vibration motor group 425, the vibration worm 422 is matched with the vibration worm wheel 423, thereby driving the driving disk 429 to rotate, and the driving disk 429 drives the eccentric slider 430 to rotate. The eccentric slider 430 drives the floating platform 419 to float up and down through the transmission connecting rod 428 and the push plate 427. The crank-connecting rod structure is used to realize the bump vibration of the battery on the floating platform 419. During the test, the amplitude of the vibration can be adjusted to complete different degrees of tests. Under the action of the eccentric adjustment motor 433, the eccentric guide rod 432 and the eccentric slider 430 rotate relative to each other. Under the action of the thread, the eccentric slider 430 will slide along the eccentric guide rod 432, so that the eccentric slider 430 deviates from the center of the circle, thereby adjusting the vibration amplitude. During the test, the battery can also be driven to flip, so that the battery can complete the vibration test under different conditions.

[0056] The impact adjusting member drives multiple impact arc frames 312 to rotate, thereby adjusting the impact area according to the size of the test battery, and then the floating slide 305 is driven down by raising the push rod 302, so that the impact base 306 moves to the floating position of the battery test, so that the battery can be impact tested while vibrating, or the impact base 306 can be directly driven by raising the push rod 302 to impact the battery for impact test. The test can be carried out according to actual needs.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A new energy vehicle battery explosion-proof performance testing device, comprising a test box (100), wherein a base (101) is provided at the bottom of the test box (100), and wherein: The upper end of the base (101) is provided with a lifting component (200) for lifting the battery, the inside of the test box (100) is provided with a battery positioning component (400) for locking the battery position, the upper end of the test box (100) is provided with an impact component (300) for generating an impact force on the upper end surface of the battery positioning component (400), the test box (100) is open on one side facing the lifting component (200), a movable door group is provided at the opening position, and an observation window is also provided on the outer side of the test box (100).

2. The new energy vehicle battery explosion-proof performance testing equipment according to claim 1 is characterized in that: The impact component (300) comprises a guide shell (309) arranged at the upper end of the test box (100); a floating slide (305) is slidably provided on the inner wall of the guide shell (309); the upper end of the floating slide (305) is connected to a height adjustment push rod (302) for driving the floating slide (305) to slide; an impact base (301) is provided on the test box (100) above the guide shell (309); the impact base (301) is connected to the test box (100) via an impact connecting rod (303); the height adjustment push rod (302) is connected to the test box (100) via an impact connecting rod (303); 02) is fixedly arranged on the impact base (301), an impact base (306) is provided below the floating slide (305), the impact base (306) is connected to the bottom of the floating slide (305) through a plurality of adjusting rotating columns (310), a plurality of impact arc frames (312) are arranged in an array at the lower end of the impact base (306), a plurality of impact heads (313) are arranged at the lower end of each impact arc frame (312), and an impact adjusting member for driving the plurality of impact arc frames (312) to open or contract is provided on the impact base (306).

3. The new energy vehicle battery explosion-proof performance testing equipment according to claim 2 is characterized in that: The impact adjustment member comprises a positioning link (316) rotatably arranged in the middle position of the impact base (306); the outer side of the positioning link (316) is fixedly connected to the expansion gear ring (314) through a radiation rod (315); the outer side of the expansion gear ring (314) is meshed with a plurality of expansion gears (311); the expansion gear (311) is fixedly arranged at the end of a driving shaft; the driving shaft is rotatably arranged on the impact base (306); the lower end of the driving shaft is connected to the inner end of the impact arc frame (312); the upper end of the positioning link (316) is provided with an impact adjustment worm wheel (308); the positioning link (316) is rotatably arranged on the floating slide (305); one side of the impact adjustment worm wheel (308) is meshed with an impact adjustment worm (307); one end of the impact adjustment worm (307) is rotatably connected to a fixed block on the floating slide (305); the other end of the impact adjustment worm (307) is connected to an impact adjustment motor (304) for driving the impact adjustment worm wheel (307) to rotate.

4. The new energy vehicle battery explosion-proof performance testing equipment according to claim 1, characterized in that: The battery positioning component (400) comprises a horizontal sliding seat (402) slidably arranged with the upper end of the base (101); running wheels (404) are rotatably arranged at both ends of the horizontal sliding seat (402); a horizontal push rod (405) for driving the horizontal sliding seat (402) to move horizontally is arranged on the outer side of the test box (100); a support seat (403) is fixedly arranged at the upper end of the horizontal sliding seat (402); an adjustment base ring (408) is arranged above the support seat (403); the adjustment base ring (408) is connected to the support seat (403) via a plurality of horizontal push rods (405); an adjustment toothed disc (409) is rotatably arranged at the upper end of the adjustment base ring (408); A central opening (426) is provided at the center of the adjusting toothed disc (409), and the adjusting toothed disc (409) is connected to a rotating member for driving the adjusting toothed disc (409) to rotate. A floating platform (419) is provided above the central opening (426), and a plurality of floating slide bars (421) are provided at the lower end of the floating platform (419). The floating slide bars (421) slide through the slide holes on the adjusting toothed disc (409), and a floating spring (420) is sleeved on the floating slide bars (421) for connecting the floating platform (419) and the adjusting toothed disc (409). The floating platform (419) is connected to a vibration driving member for driving the floating platform (419) to bump up and down, and a flip clamp for clamping the battery is provided on the floating platform (419).

5. The new energy vehicle battery explosion-proof performance testing equipment according to claim 4 is characterized in that: The flip clamping member comprises two clamping sliders (411) slidably arranged on the upper end surface of the floating platform (419); the clamping sliders (411) are threadedly arranged on the clamping screw (410); the clamping screw (410) is provided with two threaded areas with opposite rotation directions corresponding to the clamping sliders (411); one end of the clamping screw (410) is rotatably connected to a fixed block on the floating platform (419); the other end of the clamping screw (410) is connected to a clamping motor (412) for driving the clamping screw (410) to rotate; the upper end of the clamping slider (411) is connected to a clamping plate (415) via a clamping connecting seat (418); a plurality of floating sliding holes are distributed on the clamping surfaces of the two clamping plates (415); A floating pin (413) is provided for sliding, and the floating pin (413) is connected to the floating sliding hole by a spring. A plurality of floating pins (413) constitute a clamping surface, and the clamping surface here can match the shape of the battery. Each clamping plate (415) is connected to the end of a flip shaft on a clamping connection seat (418). A flip worm wheel (416) is provided at the outer end of the flip shaft. The outer side of the flip worm wheel (416) is meshed with a flip worm (417). Both ends of the flip worm (417) are rotatably connected to a fixed frame on the clamping connection seat (418). The flip worm (417) is connected to a reversing motor (414) for driving the reversing motor (414) to rotate. The reversing motor (414) is a synchronous motor.

6. The new energy vehicle battery explosion-proof performance testing equipment according to claim 5 is characterized in that: The vibration driving member comprises a push plate (427) connected to the bottom of the floating platform (419), the lower end of the push plate (427) is rotatably connected to a transmission connecting rod (428), the lower end of the transmission connecting rod (428) is rotatably connected to an eccentric slider (430), the eccentric slider (430) is slidably arranged on the surface of a driving disk (429), and a linear pushing unit for driving the position adjustment of the eccentric slider (430) is provided on the driving disk (429). The rotating shaft at the end is rotatably connected to the bearing frame at the upper end of the support seat (403); a vibration worm gear (423) is fixedly provided at the end of the driving disc (429); the vibration worm gear (423) and the vibration worm (422) are meshed with each other; one end of the vibration worm (422) is fixedly connected to the output end of the vibration motor group (425); and the other ends of the vibration motor group (425) and the vibration worm (422) are connected to the vibration bracket group (424) on the support seat (403).

7. The new energy vehicle battery explosion-proof performance testing equipment according to claim 6 is characterized in that: The linear driving unit comprises an eccentric screw (431) arranged along the diameter direction of the driving disk (429), the eccentric screw (431) matches the threaded hole on the eccentric slider (430), one end of the eccentric screw (431) is rotatably connected to the fixed block on the driving disk (429), and the other end of the eccentric screw (431) is connected to an eccentric adjustment motor (433) for driving the eccentric screw to rotate, the eccentric adjustment motor (433) is fixedly arranged on the driving disk (429), an eccentric guide rod (432) is slidably arranged in the guide hole on the eccentric slider (430), and both ends of the eccentric guide rod (432) are fixedly connected to the fixed block on the driving disk (429).

8. The new energy vehicle battery explosion-proof performance testing equipment according to claim 5 is characterized in that: The rotating member comprises a steering motor (406) fixedly arranged on the outside of the adjusting base ring (408), a steering gear (407) is provided at the output end of the steering motor (406), and the steering gear (407) is meshed with the tooth surface on the outside of the adjusting toothed disc (409).

9. The new energy vehicle battery explosion-proof performance testing equipment according to claim 1, characterized in that: The lifting component (200) comprises a lifting vertical plate (201) fixedly arranged at the end of the base (101); a lifting slider (202) is slidably arranged on the surface of the lifting vertical plate (201); a lifting screw (204) is threadedly arranged on the lifting slider (202); the upper end of the lifting screw (204) is connected to the output end of a lifting motor (205); and the lifting motor (205) is fixedly arranged on the surface of the lifting vertical plate (201).

10. A method for using the new energy vehicle battery explosion-proof performance testing device according to claim 1, characterized in that: The following steps are involved: Step 1: The battery to be tested is lifted to a predetermined position by the lifting component (200), and then the horizontal sliding seat (402) is pushed by the horizontal push rod (405), so that the support seat (403) moves to the position of the lifting component (200). Under the action of the clamping motor (412), the clamping slider (411) and the clamping screw (410) rotate relative to each other. Under the action of the thread, the two clamping sliders (411) are close to each other, so that the clamping plate (415) completes the clamping of the battery. Then, the battery is transferred into the test box (100) by the horizontal push rod (405), and the movable door group is closed to perform a vibration test first. Step 2: The vibration driving component operates to cause the battery to vibrate, and a vibration test is performed on the battery. The battery can also be impacted by an impact component (300). During the test, the direction of the battery can be adjusted so that multiple parts of the battery can be subjected to force. Step 3: After the test is completed, the battery is transferred to the lifting component (200).

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