CN219121864U

CN219121864U - Battery puncture test device

Info

Publication number: CN219121864U
Application number: CN202223154792.7U
Authority: CN
Inventors: 扈博洋; 赵儒杰; 李丹; 李云峰; 田志平; 张�浩
Original assignee: Fengfan Co Ltd
Current assignee: Fengfan Co Ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-06-02
Anticipated expiration: 2032-11-25

Abstract

The utility model provides a battery puncture test device, which belongs to the technical field of battery tests and comprises a bottom plate, a pressing plate, a mounting frame and a linear driving mechanism, wherein a placing groove is formed in the middle of the upper end face of the bottom plate, the mounting frame is arranged at the upper end of the bottom plate, the linear driving mechanism is arranged at the top of the mounting frame, the pressing plate is positioned above the placing groove, a through hole is formed in the pressing plate, the lower end of the linear driving mechanism is connected with a top plate, two ends of the top plate are respectively provided with an elastic rod, the lower ends of the two elastic rods are respectively connected with two sides of the pressing plate, the lower end of the linear driving mechanism is connected with puncture needles which are arranged corresponding to the through hole, two sides of the bottom plate are respectively longitudinally provided with an explosion-proof plate, and the top of the mounting frame is provided with a camera. According to the battery puncture test device provided by the utility model, the explosion-proof plate can isolate the battery from an operator, so that the injury to the operator caused by the ignition or explosion of the battery is avoided. The camera can acquire the video signal of battery in the puncture process, makes things convenient for operating personnel to observe.

Description

Battery puncture test device

Technical Field

The utility model belongs to the technical field of battery testing, and particularly relates to a battery puncture test device.

Background

The high specific energy of lithium ion batteries means high risk, and in general, lithium ion batteries are required to pass various safety performance tests in addition to capacity, internal resistance, and high and low temperature charging performance.

When the battery is subjected to puncture test, the detected battery is in danger of ignition and explosion, the explosion is in risk in a certain range, and the injury to operators is possibly caused, and in addition, the observation of the operators is also influenced by smoke sparks generated by the explosion.

Disclosure of Invention

The utility model aims to provide a battery puncture test device, which aims to solve the problems that the battery puncture test is dangerous to fire and explosion, the operation personnel is possibly damaged, and smoke and sparks generated by the explosion influence the observation of the operation personnel.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a battery puncture test device, including bottom plate, clamp plate, mounting bracket and sharp actuating mechanism, the standing groove has been seted up at the middle part of the up end of bottom plate, the mount set up in the upper end of bottom plate, sharp actuating mechanism install in the top of mounting bracket, the clamp plate is located the top of standing groove, the through-hole has been seted up on the clamp plate, sharp actuating mechanism's lower extreme is connected with the roof, the both ends of roof are equipped with the elastic rod respectively, two the lower extreme of elastic rod is connected respectively the both sides of clamp plate, sharp actuating mechanism's lower extreme be connected with the pjncture needle that the through-hole corresponds the setting, the both sides of bottom plate are longitudinal arrangement explosion-proof plate respectively, the camera is installed at the top of mounting bracket.

In one possible implementation manner, two explosion-proof plates are respectively arranged on the same side of the bottom plate, and the two explosion-proof plates positioned on the same side slide towards each other or back.

In one possible implementation manner, two sides of the upper end face of the bottom plate are respectively provided with a sliding groove, a screw rod is arranged in the sliding groove, two sides of the screw rod are respectively provided with reverse threads, two sides of the screw rod are respectively provided with a supporting block in a threaded manner, the two supporting blocks are respectively arranged along the sliding grooves in a sliding manner, and the lower ends of the two explosion-proof plates on the same side are respectively connected to the two supporting blocks.

In one possible implementation, one end of the screw rod extends to the outer side of the bottom plate, and a servo motor is connected.

In one possible implementation, the inner side of the explosion-proof panel is provided with a wire mesh.

In one possible implementation, the camera includes at least two cameras respectively mounted on two sides of the mounting frame and facing the placement groove.

In one possible implementation manner, the lower end of the puncture needle is provided with a diamond block, the puncture needle is internally provided with a hollow cavity, and a temperature sensor is arranged in the hollow cavity and used for sensing the temperature of the diamond block.

In one possible implementation manner, the elastic rod comprises a sleeve and a push rod, the upper end of the sleeve is connected to the top plate, the lower end of the push rod is connected to the pressing plate, a sliding block is slidably arranged in the sleeve, the push rod is connected to the lower end of the sliding block, a spring located above the sliding block is arranged in the sleeve, and the spring is used for providing elasticity for downward movement of the sliding block.

In one possible implementation manner, angle steel is respectively arranged at two sides of the bottom plate, and a plurality of mounting holes are sequentially formed in one side, away from the bottom plate, of the angle steel.

In one possible implementation manner, the mounting frame comprises a cross rod arranged above the bottom plate in parallel, the linear driving mechanism is mounted in the middle of the cross rod, two longitudinal rods are respectively arranged at two ends of the cross rod, the lower ends of the two longitudinal rods are vertically mounted on the bottom plate, a supporting rod is arranged at one side of the upper end of the longitudinal rod, and the camera is mounted at the end part of the supporting rod.

The battery puncture test device provided by the utility model has the beneficial effects that: compared with the prior art, the battery is placed in the placing groove, the linear driving mechanism drives the top plate to move downwards, the pressing plate is pressed at the upper end of the battery, and along with the downward movement of the top plate, the two elastic rods continuously apply pressure to the pressing plate, so that the pressing plate presses the battery. The puncture needle moves downwards through the top plate, and the puncture needle penetrates through the through hole in the pressing plate, so that the battery is punctured. The explosion-proof plates positioned on the two sides of the bottom plate can isolate the battery and operators, and avoid the injury to the operators when the battery fires or explodes. Install the camera at the mounting bracket top, can gather the video signal of battery in puncture in-process, make things convenient for operating personnel to observe.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a perspective view of a battery puncture test device according to an embodiment of the present utility model;

FIG. 2 is a front cross-sectional view of a battery penetration test apparatus according to an embodiment of the present utility model;

FIG. 3 is a perspective view of a battery puncture test apparatus according to an embodiment of the present utility model with an explosion-proof plate removed;

FIG. 4 is a schematic view of the structure of a puncture needle according to an embodiment of the present utility model;

fig. 5 is a schematic structural view of an elastic rod according to an embodiment of the present utility model.

Reference numerals illustrate:

1. a bottom plate; 2. a pressing plate; 3. an explosion-proof plate; 4. a temperature sensor; 5. a mounting frame; 6. a placement groove; 7. a cylinder; 8. a puncture needle; 9. a through hole; 10. angle steel; 11. a threaded hole; 12. a top plate; 13. a sleeve; 14. a push rod; 15. a spring; 16. a sliding block; 17. a diamond block; 18. a wire outlet hole; 19. a chute; 20. a partition block; 21. a screw rod; 22. a servo motor; 23. a support block; 24. a support rod; 25. a camera is provided.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 5, a battery puncture test apparatus provided by the present utility model will now be described. The utility model provides a battery puncture test device, including bottom plate 1, clamp plate 2, mounting bracket 5 and linear drive mechanism, standing groove 6 has been seted up at the middle part of the up end of bottom plate 1, mounting bracket 5 sets up in the upper end of bottom plate 1, linear drive mechanism installs in the top of mounting bracket 5, clamp plate 2 is located the top of standing groove 6, through-hole 9 has been seted up on clamp plate 2, linear drive mechanism's lower extreme is connected with roof 12, the both ends of roof 12 are equipped with the elastic rod respectively, the lower extreme of two elastic rods is connected respectively in the both sides of clamp plate 2, linear drive mechanism's lower extreme is connected with the pjncture needle 8 that corresponds the setting with through-hole 9, the both sides of bottom plate 1 are vertically provided with explosion-proof plate 3 respectively, camera 25 is installed at the top of mounting bracket 5.

Compared with the prior art, the battery puncture test device provided by the utility model has the advantages that the battery is firstly placed in the placement groove 6, the linear driving mechanism drives the top plate 12 to move downwards, the pressing plate 2 is pressed at the upper end of the battery, and along with the downward movement of the top plate 12, the two elastic rods continuously apply pressure to the pressing plate 2, so that the pressing plate 2 presses the battery. The puncture needle 8 is moved downward through the top plate 12, and the puncture needle 8 penetrates through the through hole 9 in the pressing plate 2, thereby puncturing the battery. The explosion-proof plates 3 positioned on the two sides of the bottom plate 1 can isolate the battery and operators, and avoid the injury to the operators when the battery fires or explodes. Install the camera 25 at mounting bracket 5 top, can gather the video signal of battery in the puncture in-process, make things convenient for operating personnel to observe.

The mounting frame 5 comprises a cross rod and two longitudinal rods, and the mounting frame 5 is integrally a U-shaped frame. The horizontal pole level sets up in the top of bottom plate 1, and the both ends at the horizontal pole are connected respectively to the upper ends of two vertical poles, and the lower extreme of vertical pole corresponds respectively and connects in the both ends of bottom plate 1.

The linear driving mechanism is a cylinder 7, and the cylinder 7 is installed downwards. Wherein, the cylinder body part of cylinder 7 is installed in the middle part of the horizontal pole upper end of mounting bracket 5, and the piston part of cylinder 7 runs through the horizontal pole downwards, and the lower extreme is connected on roof 12. Through adopting the movable cylinder 7 to carry out mechanical transmission, in the battery puncture process, realize full mechanization, avoid the excessive intervention of manpower, further can improve work efficiency and security performance.

Specifically, for normal use, firstly, for test stability, the bottom plate 1 needs to be fixed, in this embodiment, angle steel 10, namely angle steel plate, is welded on two sides of the bottom plate 1, a plurality of mounting holes are formed in the angle steel 10, hole site threaded holes 11 are formed in the mounting holes, the bottom plate 1 can be fixedly mounted through screws, after the bottom plate 1 is mounted, a battery is preassembled, the battery is placed in a placing groove 6 formed in the bottom plate 1, the middle of the battery is located below a through hole 9 of the pressing plate 2, and preassembling is completed.

After the preassembly is completed, remote control is performed, and the puncture needle 8 is driven to puncture by the air cylinder 7. Specifically, the piston end fixedly connected with roof 12 of cylinder 7 lower part, the one side middle part welded fastening pjncture needle 8 of roof 12 keeping away from cylinder 7, the both ends of one side of roof 12 towards pjncture needle 8 still welded fastening have the elastic lever, the elastic lever includes sleeve pipe 13 and ejector pin 14, the upper end of sleeve pipe 13 is connected on roof 12, the lower extreme of ejector pin 14 is connected on clamp plate 2, the intraductal sliding of sleeve pipe 13 is provided with slider 16, ejector pin 14 is connected at the lower extreme of slider 16, be equipped with the spring 15 that is located slider 16 top in the sleeve pipe 13, spring 15 is used for providing the elasticity that slider 16 moved downwards.

Further, a spring 15 is arranged in the sleeve 13, the upper end of the spring 15 is fixed at the top of the sleeve 13, the lower end of the spring 15 is fixedly connected with a sliding block 16, and the sliding block 16 slides in the sleeve 13. When the puncture needle 8 is located above the pressing plate 2 by a certain distance, the inner part of the push rod 14 located in the sleeve 13 is in contact with the sliding block 16, the elastic potential energy of the spring 15 is larger, the spring 15 is guaranteed not to be compressed at the first time, and then when the cylinder 7 drives the top plate 12 to move, the sleeve 13 and the inner sliding block 16 push the push rod 14 at first, so that the battery is compressed, the fixing stability of the battery is improved, meanwhile, as the top plate 12 moves downwards further, the pressing plate 2 presses the battery to bear force, the sliding block 16 in the sleeve 13 moves slowly under the compression of the spring 15, and moves downwards further at the same time, and the puncture needle 8 punctures the battery.

Preferably, the joint of the ejector rod 14 and the pressing plate 2 is provided with a reinforcing rib so as to improve the compression resistance of the pressing plate 2.

The diamond block 17 is installed to the lower extreme of pjncture needle 8, and the inside of pjncture needle 8 possesses the cavity, installs temperature sensor 4 in the cavity, and temperature sensor 4 is used for the temperature of response diamond block 17.

Specifically, inlay in pjncture needle 8 near bottom department and be equipped with annular diamond piece 17, pjncture needle 8 inside sets up the cavity and is used for placing temperature sensor 4, temperature sensor 4 probe area is located diamond piece 17 coverage area, pjncture needle 8 side has still been seted up wire hole 18, temperature sensor 4's wire is led out along wire hole 18, with the digital display thermometer of connection outside, digital display thermometer adopts the model wst491dm high accuracy's digital display thermometer, its wire is led out along wire hole 18, the wire is connected the temperature display screen, because diamond's mechanical strength is high and heat conductivility is excellent, consequently can be quick the temperature from pjncture needle 8 outside is led into inside, and then through temperature sensor 4 with temperature signal transmission to digital display thermometer, but real-time temperature measurement.

The camera 25 includes at least two, installs in the both sides of mounting bracket 5 respectively, and all faces standing groove 6.

When two cameras 25 are installed, a support bar 24 is installed at one side of the upper end of one of the longitudinal bars of the mounting frame 5, and one of the cameras 25 is installed at the end of the support bar 24 remote from the longitudinal bar. Likewise, a support bar 24 is mounted on the other side of the upper end of the other longitudinal bar of the mounting bracket 5, wherein a further camera 25 is mounted on the end of the support bar 24 remote from the longitudinal bar. In order to improve the observation effect on the battery, the two sides of the upper end of each vertical rod can be provided with the supporting rods 24, the tail end of each supporting rod 24 is provided with the camera 25, and the battery can be observed from multiple directions.

Since the battery is generally exploded along the side in the puncture test, in order to sufficiently improve the safety performance during the test, the explosion-proof plates 3 are provided on both sides of the bottom plate 1, and the explosion-proof plates 3 are used to avoid the loss caused by the oversized sparks generated by the explosion of the battery.

Specifically, a chute 19 is formed in the bottom plate 1, the chute 19 is symmetrically arranged about the middle of the placement groove 6, a partition block 20 is fixed in the middle of the chute 19, a screw rod 21 is rotatably connected in the chute 19, one end of the screw rod 21 extends out of the chute 19, a servo motor 22 is fixed at the extending end of the screw rod 21, a supporting block 23 is connected to the screw rod 21 in a threaded manner, and the supporting block 23 can slide along the length direction of the chute 19. The two supporting blocks 23 are respectively arranged at two sides of the separation block 20, and the two supporting blocks 23 at the same side of the bottom plate 1 are respectively arranged on the two supporting blocks 23 on the same screw rod 21, wherein the screw rods 21 are positioned at two sides of the separation block 20 in opposite spiral directions.

When the battery punctures, the servo motor 22 is opened, the servo motor 22 controls the screw rod 21 to rotate, along with the rotation of the screw rod 21, the supporting blocks 23 can slide along the sliding grooves 19 due to the threaded connection between the supporting blocks 23 and the screw rod 21, the screw threads of the screw rod 21 on two sides of the partition block 20 are opposite in direction, along with the forward and reverse rotation of the servo motor 22, the two supporting blocks 23 can move synchronously in opposite directions or in opposite directions, and further the two explosion-proof plates 3 on the same side are driven to move, so that the two explosion-proof plates 3 are opened and closed. When the battery punctures, the two explosion-proof plates 3 move towards each other to achieve the closing effect, sparks generated by battery explosion are sputtered on the explosion-proof plates 3, and after the battery test is completed, the two explosion-proof plates 3 move backwards to achieve the closing effect, so that the battery can be conveniently taken out or the next test battery can be conveniently placed.

Specifically, the inboard of explosion-proof board 3 is provided with the silk screen, exists the compartment between explosion-proof board 3 and the silk screen, and explosion-proof board 3 still is fixed with the fixed plate with silk screen one side, and wherein the fixed plate setting is in the side, and the width surpasses explosion-proof board 3 and silk screen, when explosion-proof board 3 of a pair of two-to-one set of foldingly, explosion-proof board 3 and fixed plate can be the form of enclosing, and then the piece accessible silk screen that its explosion produced exists in the compartment between explosion-proof board 3 and the silk screen, and then still can add as the index of explosion effect according to the explosion piece.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides a battery puncture test device, its characterized in that, including bottom plate (1), clamp plate (2), mounting bracket (5) and sharp actuating mechanism, standing groove (6) have been seted up at the middle part of the up end of bottom plate (1), mounting bracket (5) set up in the upper end of bottom plate (1), sharp actuating mechanism install in the top of mounting bracket (5), clamp plate (2) are located the top of standing groove (6), through-hole (9) have been seted up on clamp plate (2), sharp actuating mechanism's lower extreme is connected with roof (12), the both ends of roof (12) are equipped with the elastic rod respectively, two the lower extreme of elastic rod is connected with respectively the both sides of clamp plate (2), sharp actuating mechanism's lower extreme be connected with pjncture needle (8) that through-hole (9) correspond the setting, the both sides of bottom plate (1) are respectively vertically provided with explosion-proof plate (3), camera (25) are installed at the top of mounting bracket (5).

2. A battery puncture test device according to claim 1, characterized in that the same side of the bottom plate (1) is provided with two explosion-proof plates (3), respectively, and the two explosion-proof plates (3) located on the same side slide in opposite directions or in opposite directions.

3. The battery puncture test device according to claim 2, wherein sliding grooves (19) are respectively formed in two sides of the upper end face of the bottom plate (1), screw rods (21) are respectively arranged in the sliding grooves (19), reverse threads are respectively arranged on two sides of the screw rods (21), supporting blocks (23) are respectively arranged on two sides of the screw rods (21) in a threaded mode, the two supporting blocks (23) are respectively arranged in a sliding mode along the sliding grooves (19), and the lower ends of the two explosion-proof plates (3) on the same side are respectively connected to the two supporting blocks (23).

4. A battery puncture test device according to claim 3, characterized in that one end of the screw (21) extends to the outside of the base plate (1) and is connected with a servo motor (22).

5. A battery puncture test device according to claim 1, characterized in that the inner side of the explosion-proof plate (3) is provided with a wire mesh.

6. A battery puncture test device according to claim 1, characterized in that the camera (25) comprises at least two cameras, which are respectively mounted on both sides of the mounting frame (5) and are each directed towards the placement groove (6).

7. The battery puncture test device according to claim 1, wherein a diamond block (17) is mounted at the lower end of the puncture needle (8), a hollow cavity is formed in the puncture needle (8), a temperature sensor (4) is mounted in the hollow cavity, and the temperature sensor (4) is used for sensing the temperature of the diamond block (17).

8. A battery puncture test device according to claim 1, characterized in that the elastic rod comprises a sleeve (13) and a push rod (14), the upper end of the sleeve (13) is connected to the top plate (12), the lower end of the push rod (14) is connected to the pressing plate (2), a sliding block (16) is slidably arranged in the sleeve (13), the push rod (14) is connected to the lower end of the sliding block (16), a spring (15) above the sliding block (16) is arranged in the sleeve (13), and the spring (15) is used for providing an elastic force for downward movement of the sliding block (16).

9. The battery puncture test device according to claim 1, wherein angle steels (10) are respectively arranged on two sides of the bottom plate (1), and a plurality of mounting holes are sequentially formed in one side, away from the bottom plate (1), of each angle steel (10).

10. The battery puncture test device according to claim 1, wherein the mounting frame (5) comprises a cross rod which is arranged above the bottom plate (1) in parallel, the linear driving mechanism is arranged in the middle of the cross rod, two ends of the cross rod are respectively provided with a longitudinal rod, the lower ends of the two longitudinal rods are vertically arranged on the bottom plate (1), one side of the upper end of each longitudinal rod is provided with a supporting rod (24), and the camera (25) is arranged at the end part of each supporting rod (24).