Lithium battery protection board detection device

Abstract

The utility model relates to the technical field of battery detection, in particular to a lithium battery protection plate detection device which comprises a detection frame, a detection groove is formed in the front side of the detection frame, a fixing piece is fixedly installed in the detection groove, a first electric push rod is arranged at the top of the detection frame, and a limiting piece is arranged at the driving end of the first electric push rod. Two mounting seats are symmetrically mounted at the bottom of the limiting piece; by opening the first electric push rod, the driving end of the first electric push rod can extend to drive the pressing plates to move downwards to extrude the battery to be detected, the hardness of the battery can be detected, then by opening the two second electric push rods, the driving ends of the two second electric push rods are shortened, the two pressing plates can rotate to be in a V shape, and the hardness of the battery can be detected. And then according to the principle, the V-shaped bottom formed by the two pressing plates presses the to-be-detected battery, so that the stress area for pressing the battery can be reduced, the puncture resistance of the to-be-detected battery can be detected, and the detection effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery detection, in particular to a lithium battery protection board detection device. Background Art

[0002] Batteries are common functional devices in our daily life. In order to prevent the battery from being damaged by collision, there will be a battery protection plate on the outside of the battery to protect the battery body. Before the battery protection plate leaves the factory, the battery protection plate will be tested with a hardness testing device.

[0003] For example, the patent specification of an existing Chinese patent (publication number: CN216208049U) discloses a hardness detection device for a battery protection plate that can avoid breakage and splashing. The hydraulic rod fixed on the lower surface of the top plate is controlled by a controller to extend and retract, and at the same time, the single body of the vertical rod supports the top plate, so that the pressure plate can be lowered more stably, so that the battery protection plate can be longitudinally squeezed to perform hardness tests on multiple battery protection plates.

[0004] However, in the implementation of relevant technologies, it was found that the hardness detection device for the battery protection plate designed to avoid breakage and splashing has the following problems: although the hardness detection device for the battery protection plate designed to avoid breakage and splashing can detect the hardness of the battery by applying pressure to the battery, the detection is relatively simple, which only applies pressure to the battery. Since the battery may also be impacted by sharp objects, the force area of ​​the sharp objects on the battery is small, so the pressure is relatively large. Under the same pressure, the damage caused by pressure on different force areas is not different.

[0005] In view of this, a lithium battery protection board detection device is provided to overcome the above-mentioned defects. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and proposes a lithium battery protection board detection device.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a lithium battery protection board detection device, comprising a detection frame, a detection groove is opened on the front side of the detection frame, a fixing piece is fixedly installed in the detection groove, a first electric push rod is arranged on the top of the detection frame, a limiting piece is arranged on the driving end of the first electric push rod, two mounting seats are symmetrically installed on the bottom of the limiting piece, a second electric push rod is rotatably arranged in the mounting seat, a fixing seat is rotatably sleeved on the driving end of the second electric push rod, a pressing plate is fixedly installed on the bottom of the fixing seat, the two pressing plates are rotatably connected, and a pressure sensor is embedded on the top of the fixing piece.

[0008] As a further description of the above technical solution: a first pin is arranged in the mounting seat, a second pin is arranged in the fixing seat, and two ends of the second electric push rod are rotatably sleeved on the first pin and the second pin respectively.

[0009] As a further description of the above technical solution: a limit seat is arranged on one of the pressing plates, a third pin is arranged in the limit seat, and the other pressing plate is rotatably sleeved on the third pin.

[0010] As a further description of the above technical solution: a bidirectional screw is rotatably arranged in the fixing part, and two nuts are symmetrically threaded on the bidirectional screw, a connecting part is fixedly installed on the top of the nut, a positioning part is fixedly installed on the top of the connecting part, and the positioning part is slidably connected to the top of the fixing part, and a motor is embedded in the fixing part, and the driving shaft of the motor is transmission connected to one end of the bidirectional screw. Turning on the motor to rotate the bidirectional screw allows the two nuts to drive the connecting part and the positioning part to approach each other until the battery to be tested is clamped stably, which can avoid the problem of battery collapse during battery testing and improve safety.

[0011] As a further description of the above technical solution: a slide rail and a fixing opening are respectively provided inside and on the top of the fixing member, the bidirectional screw rod is rotatably connected in the slide rail, and the connecting member is slidably connected in the fixing opening.

[0012] As a further description of the above technical solution: a guide member is fixedly installed on the bottom of the nut, and a placement groove is provided at the bottom of the guide member. A ball is rotatably provided in the placement groove, and the ball is rollingly connected in the slide rail. When the nut moves, the ball will drive the ball to roll in the slide rail, which can limit the direction of the nut to avoid the nut from being offset, and the sliding friction of the limiting structure is changed to rolling friction, which can reduce friction and thus reduce mechanical loss.

[0013] As a further description of the above technical solution: a controller is fixedly installed on one side of the detection frame, and the controller is electrically connected to the first electric push rod, the second electric push rod, the pressure sensor and the motor, which can facilitate personnel to control the switch and operating status of the first electric push rod, the second electric push rod, the pressure sensor and the motor.

[0014] The utility model has the following beneficial effects:

[0015] The lithium battery protection board detection device designed by the utility model can detect the hardness of the battery by turning on the first electric push rod, so that the driving end of the first electric push rod can be extended to drive the pressing plate to move downward to squeeze the battery to be detected, and then the two second electric push rods are turned on to shorten the driving ends of the two second electric push rods, so that the two pressing plates can be rotated into a V shape, and then the V-shaped bottom formed by the two pressing plates is pressed on the battery to be detected according to the above principle, which can reduce the force area of ​​the battery being pressed, detect the puncture resistance of the battery to be detected, and improve the detection effect.

[0016] The lithium battery protection board detection device designed by the utility model can rotate the bidirectional screw rod by turning on the motor, so that the two nuts drive the connecting parts and the positioning parts to approach each other to clamp the battery to be detected stably, which can avoid the problem of battery flying off when detecting the battery, and improve the safety. When the nut moves, it will drive the ball to roll in the slide rail, which can limit the direction of the nut to avoid the nut from deviating, and the sliding friction of the limiting structure is changed to rolling friction, which can reduce friction, thereby reducing mechanical loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the outer part of the limiter of the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the interior of the fixing member of the utility model in a half-section view;

[0020] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle.

[0021] Legend:

[0022] 1. Detection frame; 2. Detection slot; 3. Fixing piece; 4. First electric push rod; 5. Limiting piece; 6. Mounting seat; 7. Second electric push rod; 8. Fixing seat; 9. Pressing plate; 10. Pressure sensor; 11. Limiting seat; 12. Bidirectional screw rod; 13. Nut; 14. Connecting piece; 15. Positioning piece; 16. Motor; 17. Slide rail; 18. Fixing port; 19. Guide piece; 20. Ball bearing. DETAILED DESCRIPTION

[0023] Reference Figure 1-4The utility model provides a lithium battery protection board detection device: it includes a detection frame 1, a detection slot 2 is opened on the front side of the detection frame 1, a fixing member 3 is fixedly installed in the detection slot 2, a first electric push rod 4 is arranged on the top of the detection frame 1, a limiting member 5 is arranged at the driving end of the first electric push rod 4, two mounting seats 6 are symmetrically installed at the bottom of the limiting member 5, a second electric push rod 7 is rotatably arranged in the mounting seat 6, a fixing seat 8 is rotatably sleeved on the driving end of the second electric push rod 7, a pressing plate 9 is fixedly installed at the bottom of the fixing seat 8, the two pressing plates 9 are rotatably connected, a pressure sensor 10 is inlaid on the top of the fixing member 3, a first pin is arranged in the mounting seat 6, a second pin is arranged in the fixing seat 8, two ends of the second electric push rod 7 are rotatably sleeved on the first pin and the second pin respectively, a limiting seat 11 is arranged on one of the pressing plates 9, a third pin is arranged in the limiting seat 11, and the other pressing plate 9 is rotatably sleeved on the third pin.

[0024] During the specific implementation, the battery to be tested is placed on the top of the fixing member 3, and then the first electric push rod 4 is turned on, so that the driving end of the first electric push rod 4 is extended to drive the pressing plate 9 to move downward to squeeze the battery to be tested, so as to detect the hardness of the battery, and then the two second electric push rods 7 are turned on, so that the driving ends of the two second electric push rods 7 are shortened, so that the two pressing plates 9 can be rotated into a V shape, and then according to the above principle, the V-shaped bottom formed by the two pressing plates 9 is pressed on the battery to be tested, which can reduce the force area of ​​the battery being pressed, and can detect the puncture resistance of the battery to be tested, thereby improving the detection effect.

[0025] As a further implementation scheme of the above technical scheme: a bidirectional screw rod 12 is rotatably arranged in the fixing member 3, and two nuts 13 are symmetrically threadedly sleeved on the bidirectional screw rod 12, a connecting member 14 is fixedly installed on the top of the nut 13, and a positioning member 15 is fixedly installed on the top of the connecting member 14, and the positioning member 15 is slidably connected to the top of the fixing member 3, and a motor 16 is embedded in the fixing member 3, and the driving shaft of the motor 16 is transmission-connected to one end of the bidirectional screw rod 12, and a slide rail 17 and a fixing port 18 are respectively provided inside and on the top of the fixing member 3, the bidirectional screw rod 12 is rotatably connected in the slide rail 17, and the connecting member 14 is slidably connected in the fixing port 18.

[0026] In the specific implementation, based on the above implementation, the motor 16 is turned on to rotate the bidirectional screw 12, so that the two nuts 13 drive the connecting piece 14 and the positioning piece 15 to approach each other until the battery to be tested is clamped stably, which can avoid the problem of battery collapse during battery testing and improve safety.

[0027] As a further implementation of the above technical solution: a guide member 19 is fixedly installed at the bottom of the nut 13, and a placement groove is provided at the bottom of the guide member 19. A ball 20 is rotatably provided in the placement groove, and the ball 20 is rollingly connected in the slide rail 17. When the nut 13 moves, the ball 20 is driven to roll in the slide rail 17, which can limit the direction of the nut 13 to prevent the nut 13 from deviating, and the sliding friction of the limiting structure is changed to rolling friction, which can reduce friction, thereby reducing mechanical loss.

[0028] As a further implementation of the above technical solution: a controller is fixedly installed on one side of the detection frame 1, and the controller is electrically connected to the first electric push rod 4, the second electric push rod 7, the pressure sensor 10 and the motor 16. It is convenient for personnel to control the switch and operation status of the first electric push rod 4, the second electric push rod 7, the pressure sensor 10 and the motor 16.

[0029] Working principle:

[0030] When using the utility model, firstly, all the electrical appliances involved in the lithium battery protection board detection device are connected to an external power supply, then the battery to be detected is placed on the top of the fixing member 3, and then the motor 16 is turned on to rotate the bidirectional screw rod 12, so that the two nuts 13 drive the connecting member 14 and the positioning member 15 to approach each other until the battery to be detected is clamped stably. In this process, the movement of the nut 13 will drive the ball 20 to roll in the slide rail 17, which can limit the direction of the nut 13 to prevent the nut 13 from deviating, and the sliding friction of the limiting structure is changed to rolling friction, which can The friction force is reduced, thereby reducing the mechanical loss. Then, the first electric push rod 4 is turned on, and the driving end of the first electric push rod 4 is extended to drive the pressing plate 9 to move downward to squeeze the battery to be tested, so as to detect the hardness of the battery. Then, the two second electric push rods 7 are turned on, and the driving ends of the two second electric push rods 7 are shortened, so that the two pressing plates 9 can be rotated into a V shape. Then, according to the above principle, the V-shaped bottom formed by the two pressing plates 9 is pressed on the battery to be tested, which can reduce the force area of ​​the battery being pressed, detect the puncture resistance of the battery to be tested, and improve the detection effect.

[0031] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lithium battery protection board detection device, comprising a detection frame (1), characterized in that: The front side of the detection frame (1) is provided with a detection groove (2), a fixing member (3) is fixedly installed in the detection groove (2), a first electric push rod (4) is arranged on the top of the detection frame (1), a limit member (5) is arranged at the driving end of the first electric push rod (4), two mounting seats (6) are symmetrically installed at the bottom of the limit member (5), a second electric push rod (7) is rotatably arranged in the mounting seat (6), a fixing seat (8) is rotatably sleeved on the driving end of the second electric push rod (7), a pressing plate (9) is fixedly installed at the bottom of the fixing seat (8), the two pressing plates (9) are rotatably connected, and a pressure sensor (10) is embedded on the top of the fixing member (3).

2. A lithium battery protection board detection device according to claim 1, characterized in that: A first pin is arranged in the mounting seat (6), a second pin is arranged in the fixing seat (8), and two ends of the second electric push rod (7) are rotatably sleeved on the first pin and the second pin respectively.

3. A lithium battery protection board detection device according to claim 1, characterized in that: A limit seat (11) is arranged on one of the pressing plates (9), a third pin shaft is arranged in the limit seat (11), and the other pressing plate (9) is rotatably sleeved on the third pin shaft.

4. A lithium battery protection board detection device according to claim 1, characterized in that: A bidirectional screw rod (12) is rotatably arranged inside the fixing member (3), two nuts (13) are symmetrically threadedly sleeved on the bidirectional screw rod (12), a connecting member (14) is fixedly installed on the top of the nut (13), a positioning member (15) is fixedly installed on the top of the connecting member (14), and the positioning member (15) is slidably connected to the top of the fixing member (3), a motor (16) is embedded in the fixing member (3), and a driving shaft of the motor (16) is drivingly connected to one end of the bidirectional screw rod (12).

5. A lithium battery protection board detection device according to claim 4, characterized in that: A slide rail (17) and a fixing opening (18) are respectively provided inside and on the top of the fixing member (3); the bidirectional screw rod (12) is rotatably connected in the slide rail (17); and the connecting member (14) is slidably connected in the fixing opening (18).

6. A lithium battery protection board detection device according to claim 5, characterized in that: A guide member (19) is fixedly mounted at the bottom of the nut (13), a placement groove is provided at the bottom of the guide member (19), a ball (20) is rotatably arranged in the placement groove, and the ball (20) is rollingly connected in the slide rail (17).

7. A lithium battery protection board detection device according to claim 4, characterized in that: A controller is fixedly mounted on one side of the detection frame (1), and the controller is electrically connected to the first electric push rod (4), the second electric push rod (7), the pressure sensor (10) and the motor (16).

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