Battery extrusion needling test device

Abstract

The utility model discloses a battery extrusion acupuncture test device, which comprises a box body, a fourth electric push rod, a support plate and a box door, a second electric push rod is fixedly connected to the center of the inner top end of the box body, a top plate is fixedly connected to the bottom of the second electric push rod, and third electric push rods are fixedly connected to the top end surfaces of the top plate on the front and rear sides of the second electric push rod; the telescopic end of the third electric push rod penetrates through the top plate and is connected with a fixing plate. The bottom of the fixing plate is fixedly connected with a needle. A supporting plate is fixedly connected to the inner side wall of the box body below the top plate, penetrating grooves are formed in the two sides of the surface of the supporting plate, a two-way screw rod is rotationally connected between the left inner wall and the right inner wall of the box body below the penetrating grooves, and moving blocks penetrate through the two sides of the surface of the two-way screw rod and are in threaded connection with the two sides of the surface of the two-way screw rod; the top end of the moving block penetrates through the penetrating groove and is fixedly connected with the clamping plate. According to the utility model, the clamping plate, the top plate and the front baffle plate are attached to each other, so that the puncture of the battery is arranged in a smaller space, the splashing of fragments is avoided, and the cleaning and recycling are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of battery safety testing, in particular to a battery extrusion and puncture testing device. Background Art

[0002] With the rapid development of new energy vehicles, energy storage systems and other fields, the requirements for battery safety are increasing. By physically puncturing and squeezing the battery, the extreme conditions that the battery may encounter in actual use are simulated. The main purpose of this test method is to evaluate the safety performance of the battery under internal short circuit conditions and ensure the safety of the battery under various extreme conditions.

[0003] Patent number CN 219121904 U discloses a battery extrusion needle penetration test device. A push plate is provided to push the burning battery and its residue after the needle penetration into a square groove and drop it into an explosion-proof box for unified collection, avoiding damage to the test equipment caused by the continuous high-temperature combustion of the battery. The explosion-proof box is equipped with a fire extinguishing device to extinguish the fire, realize the unified collection of battery residues, reduce the subsequent cleaning work, and allow it to be used again immediately, saving time and effort and improving the efficiency of battery testing.

[0004] However, in use, there are the following defects:

[0005] Although batteries are pushed into an explosion-proof box for fire extinguishing and unified collection, the batteries may cause fragments to fly after fire and explosion, increasing the difficulty of cleaning. In addition, the combustion of batteries in the explosion-proof box during fire extinguishing will produce some smoke and exhaust gas. Due to the lack of shielding in the explosion-proof box, the smoke and exhaust gas will float out of the explosion-proof box and affect the air quality inside the device. Utility Model Content

[0006] The purpose of the utility model is to provide a battery extrusion needle penetration test device, which solves the problems proposed in the background art that batteries may cause fragments to fly after fire and explosion, increasing the difficulty of cleaning, and that the combustion of batteries in an explosion-proof box before extinguishing the fire will generate some smoke and exhaust gas, which will float out of the explosion-proof box due to the lack of shielding, affecting the air quality inside the device.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a battery extrusion puncture test device, comprising a box body, a No. 4 electric push rod, a support plate and a box door, a No. 2 electric push rod is fixedly connected to the center of the inner top of the box body, the bottom of the No. 2 electric push rod is fixedly connected to the top plate, the top surfaces of the top plates on both sides of the front and rear of the No. 2 electric push rod are fixedly connected to the No. 3 electric push rod, the telescopic end of the No. 3 electric push rod passes through the top plate and is connected to the fixed plate, the bottom of the fixed plate is fixedly connected to the needle head; the inner wall of the box body below the top plate is fixedly connected to the support plate, both sides of the surface of the support plate are provided with through grooves, and a two-way screw is rotatably connected between the left and right inner walls of the box body below the through groove, the surface of the two-way screw rod is penetrated by moving blocks on both sides and is connected to the moving block by thread. The top of the moving block passes through the through slot and is fixedly connected to the splint; an adjusting slot is provided on the top surface of the support plate close to the box door, and the inner side of the adjusting slot is laterally slidably connected to a block, and the No. 4 electric push rod is fixedly connected to the right side wall of the box body at the horizontal position of the block, and the telescopic end of the No. 4 electric push rod passes through the side wall of the box body and is fixedly connected to the right end of the block; a drop opening is provided in the center of the inner bottom of the adjusting slot, and the drop opening is connected to a recovery slot provided at the bottom of the box body; the box door is movably connected to the opening of the box body, and the center of the outer surface of the box door is fixedly connected to the No. 1 electric push rod, and the telescopic tube of the No. 1 electric push rod passes through the box door and is fixedly connected to the front baffle; the side wall of the recovery slot is connected to an exhaust pipe, and the other end of the exhaust pipe is connected to the exhaust device outside the box body.

[0008] In this technical solution,

[0009] Preferably, a hose is connected through the surface of one of the clamping plates on the surface of the support plate, the other end of the hose is connected to the side wall of the exhaust pipe, and the exhaust pipe is connected to the area between the two clamping plates inside the box through the hose.

[0010] Preferably, the top end of the stopper and the top end surface of the support plate are located in the same horizontal plane, and the front and rear sides of the stopper are respectively fitted with the front and rear inner walls of the adjustment slot.

[0011] Preferably, a servo motor is fixedly connected to the outer side wall of the box body at the horizontal position of the bidirectional screw rod, and the output end of the transmission shaft of the servo motor is fixedly connected to one end of the bidirectional screw rod.

[0012] Preferably, a side of the front baffle close to the support plate is in contact with the top plate, the clamping plate and the support plate at the same time.

[0013] Preferably, a material storage box is provided at the bottom of the box body on one side of the recovery tank, the material storage box is communicated with the nozzle, and the bottom of the nozzle is located on the inner side of the material storage box.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The utility model can block debris through the top plate, clamping plate and front baffle. The clamping plate clamps the battery from both sides, and the No. 2 electric push rod drives the top plate to descend and fit together with the top of the clamping plate. Then the No. 1 electric push rod is started to drive the front baffle to move toward the support plate until the front baffle fits together with the sides of the top plate, clamping plate and support plate, thereby forming a smaller enclosed space around the battery. Therefore, when performing the puncture test, the flying debris will be more concentrated, which is convenient for cleaning.

[0016] 2. The utility model can shield the recovery tank by arranging the exhaust pipe, the adjustment tank, the block and the No. 4 electric push rod. Before the push plate pushes the battery, the block slides down to the edge of the adjustment tank driven by the No. 4 electric push rod. After the battery enters the recovery tank, the block resets and returns to the center of the adjustment tank to block the drop mouth, thereby blocking the smoke and exhaust gas generated by the battery before the fire is extinguished. The smoke and exhaust gas can be more conveniently extracted through the exhaust pipe and wait for subsequent further processing, avoiding the influence of a large amount of smoke and exhaust gas on the upper detection area, speeding up the puncture test and improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0018] Figure 1 It is an overall view of the utility model;

[0019] Figure 2 This is a cross-sectional schematic diagram of the splint of the present utility model;

[0020] Figure 3 This is a cross-sectional schematic diagram of the recovery tank of the present utility model;

[0021] Figure 4 It is a side sectional schematic diagram of the present utility model.

[0022] In the figure: 1. Box body; 2. Box door; 3. Electric push rod No. 1; 301. Front baffle; 4. Electric push rod No. 2; 5. Top plate; 6. Electric push rod No. 3; 601. Fixed plate; 602. Needle; 7. Support plate; 701. Through slot; 8. Bidirectional screw rod; 801. Moving block; 802. Clamp; 803. Servo motor; 9. Adjustment slot; 10. Stop block; 1001. Electric push rod No. 4; 11. Dropping port; 12. Recovery slot; 13. Hose; 14. Exhaust pipe; 15. Exhaust device; 16. Storage box; 17. Nozzle; 18. Electric push rod No. 5; 181. Push plate; 19. Inflating port. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, they are further elaborated below in conjunction with specific implementation methods.

[0024] A battery extrusion needle puncture test device, see Figures 1 to 4 , including a box body 1, a No. 4 electric push rod 1001, a support plate 7 and a box door 2, the inner top center of the box body 1 is fixedly connected to the No. 2 electric push rod 4, the bottom of the No. 2 electric push rod 4 is fixedly connected to the top plate 5, and the top surfaces of the top plates 5 on both sides of the front and rear of the No. 2 electric push rod 4 are fixedly connected to the No. 3 electric push rod 6, the telescopic end of the No. 3 electric push rod 6 passes through the top plate 5 and is connected to the fixed plate 601, and the bottom of the fixed plate 601 is fixedly connected to the needle 602; the inner side wall of the box body 1 below the top plate 5 is fixedly connected to the support plate 7, and both sides of the surface of the support plate 7 are provided with through grooves 701, and a two-way screw rod 8 is rotatably connected between the left and right inner walls of the box body 1 below the through groove 701, and the surface of the two-way screw rod 8 is penetrated by moving blocks 801 on both sides and is threadedly connected to the moving block 801, and the top of the moving block 801 passes through the through groove 7 01 and is fixedly connected to the splint 802; a drop opening 11 is provided in the center of the inner bottom of the adjusting groove 9, and the drop opening 11 is communicated with the recovery groove 12 provided at the bottom of the box body 1; a box door 2 is movably connected to the opening of the box body 1, and a No. 1 electric push rod 3 is fixedly connected to the center of the outer surface of the box door 2, and the telescopic tube of the No. 1 electric push rod 3 passes through the box door 2 and is fixedly connected to the front baffle 301, and the splint 802 clamps the battery from both sides, and the No. 2 electric push rod 4 drives the top plate 5 to descend and fits together with the top end of the splint 802, and then the No. 1 electric push rod 3 starts to drive the front baffle 301 to move toward the support plate 7 until the front baffle 301 fits together with the side surfaces of the top plate 5, the splint 802 and the support plate 7, thereby forming a smaller enclosed space around the battery, so that the flying debris will be more concentrated when the puncture test is carried out, which is convenient for cleaning;

[0025] The side wall of the recovery tank 12 is connected to an exhaust pipe 14, and the other end of the exhaust pipe 14 is connected to the exhaust device 15 on the outside of the box body 1. An adjusting groove 9 is provided on the top surface of the support plate 7 close to the box door 2, and a block 10 is connected to the inner side of the adjusting groove 9 for horizontal sliding. The No. 4 electric push rod 1001 is fixedly connected to the right side wall of the box body 1 at the horizontal position of the block 10, and the telescopic end of the No. 4 electric push rod 1001 passes through the side wall of the box body 1 and is fixedly connected to the right end of the block 10. After the battery enters the recovery tank 12, the block 10 resets and returns to the center of the adjusting tank 9 to block the drop port 11, thereby blocking the smoke and exhaust gas generated by the battery before the fire is extinguished, and the smoke and exhaust gas can be more conveniently extracted through the exhaust pipe 14 and wait for subsequent further processing, avoiding the influence of a large amount of smoke and exhaust gas on the detection area above.

[0026] Specifically, such as Figure 3 As shown, a hose 13 is connected to the surface of one of the clamping plates 802 on the surface of the support plate 7, and the other end of the hose 13 is connected to the side wall of the exhaust pipe 14, and the exhaust pipe 14 is connected to the area between the two clamping plates 802 on the inner side of the box body 1 through the hose 13. When the block 10 blocks the drop port 11, a small amount of exhaust gas will still enter from above because the blocking takes a certain amount of time. At this time, when the exhaust pipe 14 is exhausting air, the space above the support plate 7 can be extracted through the hose 13, thereby improving the efficiency of exhaust gas recovery and extraction.

[0027] It should be noted that battery fire will increase the air pressure in the internal space, so normal vacuuming can be used to extract the exhaust gas. In order to ensure complete extraction, extraction needs to be carried out for a period of time. In order to ensure normal air pressure inside the box 1, a blower can be connected to the inflation port 19 to inflate the interior of the box 1. The block 10 only needs to be closed when there is a lot of smoke and exhaust gas before extinguishing the fire, and opened during the later extraction to increase the air flow path.

[0028] It is worth noting that if Figure 3 and Figure 4 As shown, the top of the block 10 is located at the same horizontal plane as the top surface of the support plate 7, and the front and rear sides of the block 10 are respectively fitted with the front and rear inner walls of the adjustment groove 9, so that the block 10 can form a whole with the surface of the support plate 7 while covering the drop opening 11.

[0029] It is worth noting that if Figure 2 As shown, the outer wall of the box body 1 in the horizontal position of the bidirectional screw rod 8 is fixedly connected to a servo motor 803, and the output end of the transmission shaft of the servo motor 803 is fixedly connected to one end of the bidirectional screw rod 8. After the servo motor 803 is started, it will drive the bidirectional screw rod 8 to rotate, so that the moving block 801 moves laterally with the splint 802, clamping the battery while limiting the splashing space of debris.

[0030] It is worth noting that if Figure 1 As shown, the side of the front baffle 301 close to the support plate 7 is simultaneously fitted with the top plate 5, the clamping plate 802 and the support plate 7. The fitted state can block the smoke and exhaust gas in the recovery tank 12 as much as possible, so that the smoke and exhaust gas basically remain in the recovery tank 12, convenient for waiting for subsequent extraction and processing.

[0031] It is worth noting that if Figure 2As shown, a storage box 16 is provided at the bottom of the box body 1 on one side of the recovery tank 12. The storage box 16 is connected to the nozzle 17, and the bottom of the nozzle 17 is located on the inner side of the storage box 16. The pipeline between the nozzle 17 and the storage box 16 is provided with an extraction pump, so that the fire extinguishing agent in the storage box 16 can be extracted to extinguish the batteries in the recovery tank 12.

[0032] It is worth noting that if Figure 4 As shown, a No. 5 electric push rod 18 is fixedly connected to the outer wall of the box body 1 in the area between the two splints 802 on the surface of the support plate 7. The telescopic end of the No. 5 electric push rod 18 passes through the surface of the box body 1 and is fixedly connected to the push plate 181. The bottom of the push plate 181 is in contact with the top surface of the support plate 7. Therefore, the surface of the support plate 7 can be scraped when pushing, making the pushing more clean.

[0033] In actual use, the box door 2 is opened, and the battery is placed on the surface of the support plate 7 between the two clamps 802, and the box door 2 is closed. Then the servo motor 803 is started to drive the bidirectional screw rod 8 to rotate, so that the moving block 801 clamps the battery from both sides with the clamps 802, and the No. 2 electric push rod 4 drives the top plate 5 to descend and fits together with the top of the clamp 802, and then the No. 1 electric push rod 3 is started to drive the front baffle 301 to move toward the support plate 7 until the front baffle 301 fits together with the top plate 5, the clamp 802 and the side of the support plate 7, thereby forming a smaller enclosed space around the battery, so that the flying debris will be more concentrated during the puncture test, which is convenient for cleaning. In this process, the No. 3 electric push rod 6 drives the fixed plate 601 and the needle 602 to descend to puncture the battery. After the puncture, the needle 602 rises, and the two clamps 802 are relatively far away, so that The push plate 181 leaks out, and then the No. 5 electric push rod 18 starts to drive the push plate 181 to move horizontally, pushing the battery and fragments from the drop port 11 into the recovery tank 12 for fire extinguishing. By setting the exhaust pipe 14, the adjusting tank 9, the block 10 and the No. 4 electric push rod 1001, the recovery tank 12 can be blocked. Before the push plate 181 pushes the battery, the block 10 slides down to the edge of the adjusting tank 9 driven by the No. 4 electric push rod 1001, and waits for the battery to enter the recovery tank 12. The block 10 resets and returns to the center of the adjusting tank 9 to block the drop port 11, thereby blocking the smoke and exhaust gas generated by the battery before the fire is extinguished, and the smoke and exhaust gas can be more conveniently extracted through the exhaust pipe 14 and wait for subsequent further processing, avoiding the influence of a large amount of smoke and exhaust gas on the upper detection area, speeding up the puncture test, and improving the processing efficiency.

[0034] In addition, the components designed in this utility model are all universal standard parts or components known to technical personnel in this field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. They can be fully implemented by technical personnel in this field. Needless to say, the content protected by this utility model does not involve improvements to internal structures and methods.

[0035] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A battery extrusion needle penetration test device, comprising a box body (1), a No. 4 electric push rod (1001), a support plate (7) and a box door (2), characterized in that: The center of the inner top of the box body (1) is fixedly connected to a No. 2 electric push rod (4), the bottom of the No. 2 electric push rod (4) is fixedly connected to a top plate (5), the top surfaces of the top plates (5) on both sides of the No. 2 electric push rod (4) are fixedly connected to a No. 3 electric push rod (6), the telescopic end of the No. 3 electric push rod (6) passes through the top plate (5) and is connected to the fixed plate (601), and the bottom of the fixed plate (601) is fixedly connected to a needle (602); the box body (1) below the top plate (5) The inner wall is fixedly connected with a support plate (7), and both sides of the surface of the support plate (7) are provided with through grooves (701), and a bidirectional screw rod (8) is rotatably connected between the left and right inner walls of the box body (1) below the through grooves (701), and both sides of the surface of the bidirectional screw rod (8) are penetrated by moving blocks (801) and are threadedly connected to the moving blocks (801), and the top end of the moving block (801) passes through the through grooves (701) and is fixedly connected to the clamping plate (802); the support plate (7) is close to the inner wall of the box body (1), and the two sides of the surface of the box body (1) are connected to the left and right inner walls of the box body (1). An adjusting groove (9) is provided on the top surface of the side near the box door (2), and a stopper (10) is connected to the inner side of the adjusting groove (9) in a transverse sliding manner. The fourth electric push rod (1001) is fixedly connected to the outer right side wall of the box body (1) at the horizontal position of the stopper (10), and the telescopic end of the fourth electric push rod (1001) passes through the side wall of the box body (1) and is fixedly connected to the right end of the stopper (10); a drop opening (11) is provided in the center of the inner bottom of the adjusting groove (9), and the drop opening (11) It is connected to a recovery tank (12) provided at the bottom of the box body (1); a box door (2) is movably connected to the opening of the box body (1); a No. 1 electric push rod (3) is fixedly connected to the center of the outer surface of the box door (2); a telescopic tube of the No. 1 electric push rod (3) passes through the box door (2) and is fixedly connected to the front baffle (301); a side wall of the recovery tank (12) is connected to an exhaust pipe (14), and the other end of the exhaust pipe (14) is connected to an exhaust device (15) outside the box body (1).

2. The battery extrusion needle penetration test device according to claim 1, characterized in that: A hose (13) is connected through the surface of one of the clamping plates (802) on the surface of the support plate (7), and the other end of the hose (13) is connected to the side wall of the exhaust pipe (14). The exhaust pipe (14) is connected to the area between the two clamping plates (802) inside the box (1) through the hose (13).

3. The battery extrusion needle penetration test device according to claim 1, characterized in that: The top end of the stopper (10) and the top end surface of the support plate (7) are located on the same horizontal plane, and the front and rear sides of the stopper (10) are respectively fitted with the front and rear inner side walls of the adjustment groove (9).

4. The battery extrusion needle penetration test device according to claim 1, characterized in that: A servo motor (803) is fixedly connected to the outer side wall of the box body (1) at the horizontal position of the bidirectional screw rod (8), and the output end of the transmission shaft of the servo motor (803) is fixedly connected to one end of the bidirectional screw rod (8).

5. The battery extrusion needle penetration test device according to claim 1, characterized in that: The side of the front baffle (301) close to the support plate (7) is simultaneously in contact with the top plate (5), the clamping plate (802) and the support plate (7).

6. The battery extrusion needle penetration test device according to claim 1, characterized in that: A material storage box (16) is provided at the bottom of the box body (1) on one side of the recovery tank (12). The material storage box (16) is communicated with the nozzle (17), and the bottom of the nozzle (17) is located inside the material storage box (16).

7. The battery extrusion needle penetration test device according to claim 1, characterized in that: A No. 5 electric push rod (18) is fixedly connected to the outer wall of the box body (1) in the area between the two clamping plates (802) on the surface of the support plate (7), and the telescopic end of the No. 5 electric push rod (18) passes through the surface of the box body (1) and is fixedly connected to the push plate (181).

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