CN220829580U - Device for continuously testing breakdown voltage of lithium battery diaphragm - Google Patents

Abstract

The utility model discloses a device for continuously testing the breakdown voltage of a lithium battery diaphragm, which comprises a detection table, wherein the upper surface of the detection table is fixedly connected with a fixed square box, the left side surface of the fixed square box is fixedly connected with a fixed plate, the upper surface of the fixed plate is fixedly connected with a hydraulic push rod, the output end of the hydraulic push rod penetrates through the fixed square box and extends into the fixed square box, and the output end of the hydraulic push rod is fixedly connected with a connecting large plate. This device passes through hydraulic push rod promotion and connects big board, supports diaphragm and test roll round trip movement, can utilize the round trip movement of test roll and contact piece to roll the diaphragm of lithium cell and detect, has avoided appearing the condition that the test is not comprehensive enough when testing the diaphragm, cooperates electric voltage tester, test roll and contact piece's use to reached and detected more convenient effect to the lithium cell diaphragm, can detect the diaphragm of persistence, improved the detection efficiency to the diaphragm.

Description

Device for continuously testing breakdown voltage of lithium battery diaphragm

Technical Field

The utility model relates to the field of lithium battery diaphragm detection, in particular to a device for continuously testing the breakdown voltage of a lithium battery diaphragm.

Background

In the structure of the lithium battery, the diaphragm is one of key inner layer components, the performance of the diaphragm determines the interface structure, internal resistance and the like of the battery, the characteristics of capacity, circulation, safety and the like of the battery are directly influenced, the diaphragm with excellent performance plays an important role in improving the comprehensive performance of the battery, the diaphragm has the main roles of separating the positive electrode from the negative electrode of the battery and preventing the contact of the two electrodes from being short-circuited, in addition, the diaphragm has the function of enabling electrolyte ions to pass through, the diaphragm material is non-conductive, and the physical and chemical properties of the diaphragm have great influence on the performance of the battery.

The utility model discloses a battery diaphragm breakdown voltage testing arrangement of publication number CN209842005U chinese patent, including direct current test circuit, first electrode and movable clamp, movable clamp includes the second electrode, direct current test circuit respectively with movable clamp first electrode electricity is connected. Through direct current test circuit respectively with movable fixture, first electrode electricity is connected, set up a low voltage value in the direct current test circuit and regard as withstand voltage's upper limit value, this testing arrangement can test the diaphragm of large tracts of land, and can measure effectively whether the diaphragm exists weak point and the position and corresponding breakdown voltage number that weak point is located, but can cause other articles to also contact the diaphragm when making round trip to move on the diaphragm in above-mentioned patent using the conducting rod, owing to need detect a large amount of lithium cell diaphragms, can influence the testing result to the lithium cell diaphragm to cause the inefficiency to the test of diaphragm and test inconvenient problem inadequately, for this reason, we propose a sustainable test lithium cell diaphragm breakdown voltage's device to solve above-mentioned problem.

Disclosure of utility model

The utility model aims to provide a device for continuously testing the breakdown voltage of a lithium battery diaphragm, so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The utility model provides a sustainable device of testing lithium cell diaphragm breakdown voltage, includes the detection platform, the last fixed surface of detection platform is connected with fixed square box, the left surface fixedly connected with fixed plate of fixed square box, the last fixed surface of fixed plate is connected with hydraulic push rod, hydraulic push rod's output runs through fixed square box and extends to the inside of fixed square box, hydraulic push rod's output fixedly connected with connects the big board, the front end of connecting the big board runs through fixed square box and extends to the place ahead of fixed square box, the front fixedly connected with who connects the big board supports the diaphragm, the last fixed surface who supports the diaphragm is connected with electric putter, electric putter's output fixedly connected with U-shaped frame, the inner wall fixedly connected with of U-shaped frame supports the round bar, the surface rotation of supporting the round bar is connected with the test roller, the surface fixedly mounted of test roller has the contact piece that the equidistance was arranged, the upper surface fixedly mounted of fixed square box has electric voltage tester, electric voltage tester's surface is equipped with two and connects the torch.

In a further embodiment, the upper surface of the detection table is fixedly connected with a test board, and four elastic clamps are fixedly arranged on the upper surface of the test board.

In a further embodiment, the bottom surface of the detection platform is fixedly connected with four supporting legs, and the bottom end of each supporting leg is fixedly connected with an insulating block.

In a further embodiment, the front surface of the fixed square box is provided with a square through hole, the size of the square through hole is matched with the size of the connecting large plate, and the outer surface of the connecting large plate and the outer surface of the supporting transverse plate are fixedly connected with reinforcing plates together.

In a further embodiment, the inner wall of the fixed square box is fixedly connected with a sliding straight rod, the outer surface of the sliding straight rod is slidably connected with a sliding plate, and the outer surface of the sliding plate is fixedly connected with the bottom surface of the connecting large plate.

In a further embodiment, the upper surface of the fixed square box is fixedly provided with a controller, the outer surface of the electric voltage tester is fixedly provided with an alarm lamp, and the alarm lamp and the electric voltage tester are electrically connected with the controller through wires.

Compared with the prior art, the utility model has the beneficial effects that:

This device passes through hydraulic push rod promotion and connects big board, support diaphragm and test roll round trip movement, can utilize the round trip movement of test roll and contact piece to roll the diaphragm of detecting the lithium cell, the condition that appears testing inadequately comprehensively when having avoided testing the diaphragm, the use of cooperation electric voltage tester, test roll and contact piece, thereby reached the effect that detects the lithium cell diaphragm more convenient, the operation degree of difficulty when having great reduction to detect, can the sustainability detect the diaphragm, improved the detection efficiency to the diaphragm, the advantage of simple operation when having the test lithium cell diaphragm.

Drawings

Fig. 1 is a schematic front perspective view of a device for continuously testing the breakdown voltage of a lithium battery separator.

Fig. 2 is a schematic rear sectional structure of a device for continuously testing the breakdown voltage of a lithium battery separator.

Fig. 3 is a schematic side view of a device for continuously testing the breakdown voltage of a lithium battery separator.

Fig. 4 is an enlarged schematic view of the structure a in fig. 3 in a device for continuously testing the breakdown voltage of a lithium battery separator.

In the figure: 1. a detection table; 2. fixing the square box; 3. a fixing plate; 4. a hydraulic push rod; 5. connecting a large plate; 6. a supporting cross plate; 7. an electric push rod; 8. a U-shaped frame; 9. supporting the round rod; 10. a test roller; 11. a contact block; 12. a reinforcing plate; 13. an electrical voltage tester; 14. a flashlight is connected; 15. a test board; 16. an elastic clamp; 17. support legs; 18. an insulating block; 19. sliding the straight rod; 20. a sliding plate; 21. square through holes; 22. a controller; 23. an alarm lamp.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the device for continuously testing the breakdown voltage of a lithium battery membrane in the utility model comprises a detection table 1, wherein the upper surface of the detection table 1 is fixedly connected with a fixed square box 2, the left side surface of the fixed square box 2 is fixedly connected with a fixed plate 3, the upper surface of the fixed plate 3 is fixedly connected with a hydraulic push rod 4, the output end of the hydraulic push rod 4 penetrates through the fixed square box 2 and extends to the inside of the fixed square box 2, the output end of the hydraulic push rod 4 is fixedly connected with a connecting large plate 5, the front end of the connecting large plate 5 penetrates through the fixed square box 2 and extends to the front of the fixed square box 2, the front surface of the connecting large plate 5 is fixedly connected with a supporting transverse plate 6, the upper surface of the supporting transverse plate 6 is fixedly connected with an electric push rod 7, the output end of the electric push rod 7 is fixedly connected with an inner wall of a U-shaped frame 8,U, the outer surface of the supporting round rod 9 is rotatably connected with a test roller 10, the outer surface of the test roller 10 is fixedly provided with equidistantly arranged contact blocks 11, the upper surface of the fixed square box 2 is fixedly provided with an electric voltage tester 13, and the electric voltage tester 13 is provided with two electric boxes 5 and the outer surfaces of the electric tester are connected with the two transverse plates 6, and the electric tester is made of the insulating material and is made of the insulating material.

The upper surface fixedly connected with test board 15 of test bench 1, the upper surface fixed mounting of test board 15 has four elasticity to press from both sides 16, use elasticity to press from both sides 16 to fix the diaphragm, can make things convenient for the inspector to fix the diaphragm, have the advantage that fixed more firm, the bottom surface fixedly connected with four supporting legs 17 of test bench 1, the equal fixedly connected with insulation block 18 in bottom of every supporting leg 17 can avoid static can cause the influence to test bench 1, improve the accuracy of the device when testing breakdown voltage, the advantage that has the measuring result more accurate, square through hole 21 has been seted up in the front of fixed square box 2, and the big or small looks adaptation of connecting big or small board 5 of the size of square through hole 21, the outer surface of connecting big or small board 5 and the outer surface of supporting diaphragm 6 fixedly connected with gusset plate 12 jointly, set up square through hole 21, make when connecting big or small board 5 remove, be provided with gusset plate 12, make connect between big or small board 5 and supporting diaphragm 6 more firm, prevent the condition that bending.

The inner wall fixedly connected with slip straight-bar 19 of fixed square box 2, the surface sliding connection of slip straight-bar 19 has slide plate 20, the surface of slide plate 20 and the bottom surface fixed connection who connects big board 5, drive slide plate 20 when making connect big board 5 remove and slide on slide straight-bar 19, improve the stability of connecting big board 5 removal, the condition that can take place the card when preventing its removal, the upper surface fixed mounting of fixed square box 2 has controller 22, the surface fixed mounting of electric voltage tester 13 has warning light 23, and warning light 23 and electric voltage tester 13 all are connected with controller 22 electricity through the wire, can make warning light 23 light when testing breakdown voltage, thereby play the effect of warning.

The working principle of the utility model is as follows:

When in use, the lithium battery diaphragm is paved on the test board 15, the diaphragm is pressed by the elastic clamp 16, the power supply is turned on, the electric push rod 7 is started to push the U-shaped frame 8 to move downwards, the supporting round rod 9 and the test roller 10 are pushed to move downwards when the U-shaped frame 8 moves downwards, the test roller 10 and the contact block 11 are contacted with the diaphragm on the test board 15, then the hydraulic push rod 4 is started to push the large connecting board 5 to drive the supporting transverse board 6 to move, the electric push rod 7 and the U-shaped frame 8 are driven to move left and right when the supporting transverse plate 6 moves, the test roller 10 and the contact block 11 are driven to roll on the diaphragm when the U-shaped frame 8 moves, the contact block 11 can transmit signals to the electric voltage tester 13 through a wire, and then the electric voltage tester 13 can be used for testing the data of breakdown voltage, so that the electric voltage tester has the advantage of higher efficiency of breakdown voltage testing.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (6)

1. The utility model provides a sustainable device that tests lithium cell diaphragm breakdown voltage which characterized in that: including detecting platform (1), the fixed square box (2) of upper surface fixedly connected with of detecting platform (1), the left surface fixedly connected with fixed plate (3) of fixed square box (2), the upper surface fixedly connected with hydraulic push rod (4) of fixed plate (3), the output of hydraulic push rod (4) runs through fixed square box (2) and extends to the inside of fixed square box (2), the output fixedly connected with of hydraulic push rod (4) connects big board (5), the front end of connecting big board (5) runs through fixed square box (2) and extends to the place ahead of fixed square box (2), the front fixedly connected with of connecting big board (5) supports diaphragm (6), the upper surface fixedly connected with electric putter (7) of supporting diaphragm (6), the output fixedly connected with U-shaped frame (8) of electric putter (7), the inner wall fixedly connected with of U-shaped frame (8) supports round bar (9), the surface rotation of supporting round bar (9) is connected with and is connected with test roll (10), the fixed surface of test roll (10) is arranged in fixed surface of test roll (11) fixed surface arrangement has electric contact (11), the outer surface of the electric voltage tester (13) is provided with two flashlight (14).

2. The device for sustainable testing of lithium battery separator breakdown voltage according to claim 1, wherein: the upper surface of the detection table (1) is fixedly connected with a test plate (15), and four elastic clamps (16) are fixedly arranged on the upper surface of the test plate (15).

3. The device for sustainable testing of lithium battery separator breakdown voltage according to claim 1, wherein: the bottom surface fixedly connected with four supporting legs (17) of test bench (1), every the bottom of supporting leg (17) all fixedly connected with insulating piece (18).

4. The device for sustainable testing of lithium battery separator breakdown voltage according to claim 1, wherein: square through-hole (21) has been seted up in the front of fixed square chest (2), and the size of square through-hole (21) and the big board of connection (5) size looks adaptation, the surface of connecting big board (5) and the surface of supporting diaphragm (6) are fixed connection has gusset plate (12) jointly.

5. The device for sustainable testing of lithium battery separator breakdown voltage according to claim 1, wherein: the inner wall fixedly connected with slip straight-bar (19) of fixed square chest (2), the surface sliding connection of slip straight-bar (19) has sliding plate (20), the surface of sliding plate (20) is connected with the bottom surface fixed connection of connecting big board (5).

6. The device for sustainable testing of lithium battery separator breakdown voltage according to claim 1, wherein: the upper surface fixed mounting of fixed square chest (2) has controller (22), the surface fixed mounting of electric voltage tester (13) has warning light (23), and warning light (23) and electric voltage tester (13) are all connected with controller (22) electricity through the wire.