A clamp for testing lithium battery residual energy release

Abstract

The utility model relates to lithium battery clamp technical field, concretely relates to a clamp for testing lithium battery residual electric energy release, including bottom plate, the symmetric fixed setting of bottom plate has the limit stop, a plurality of baffle are fixedly arranged between the limit stop, the area between the limit stop is divided into a plurality of test area by baffle, and the clamp is fixedly arranged in each test area center, and the both ends of clamp are symmetrically provided with fixed part, and the clamp includes arc plate, and the both sides of arc plate are rotatably provided with the clamp plate, and a plurality of heat dissipation grooves are penetrated and established on the clamp plate, and the clamp plate and arc plate coordinate and cooperate use, and the lithium battery of different size is applied, and it is ensured that the contour is closely combined with lithium battery, the heat dissipation groove on the clamp plate improves the heat dissipation effect, and the design of elastic strip improves the clamping stability, and also help to reduce the damage or deformation of lithium battery due to clamping too tightly, through the cooperation of clamp and fixed part, the all -round fixation of lithium battery can be realized, and it is helpful to improve the accuracy and reliability of test.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery clamp technical field especially for a kind of clamp for testing lithium battery residual power release. BACKGROUND

[0002] With the wide application of lithium battery in electric vehicle, energy storage system and portable electronic device, the performance requirement of lithium battery is also higher and higher. In order to ensure the safety and reliability of lithium battery, it needs to be tested strictly in the production and use process. Among them, testing the residual power release capacity of lithium battery is a key indicator, which is directly related to the endurance and service life of lithium battery.

[0003] The clamp for testing the residual power release of lithium battery is an important part of lithium battery detection technology field. The clamp can firmly hold the lithium battery through specific structural design, and ensure that the lithium battery does not loosen or fall off during testing. This function is the basis of accurate testing. With the continuous progress of testing technology, the accuracy of the clamp will be continuously improved.

[0004] The lithium battery clamp has the problems of high heat production temperature of lithium battery during testing and low flexibility of clamp leading to unstable clamping in the case of needing to clamp multiple lithium batteries and different specifications of lithium batteries. Therefore, a clamp for testing the residual power release of lithium battery is provided. SUMMARY

[0005] The main purpose of the utility model is to provide a clamp for testing the residual power release of lithium battery, to solve the problem of unstable clamping of lithium battery clamp in the case of needing to clamp multiple lithium batteries and different specifications of lithium batteries, and high heat production temperature of lithium battery during testing and low flexibility of clamp.

[0006] In order to achieve the above purpose, according to one aspect of the utility model, a clamp for testing the residual power release of lithium battery is provided, which includes a bottom plate, a limiting plate is fixed symmetrically on the bottom plate, a plurality of partition plates are fixed between the limiting plates, the area between the limiting plates is divided into a plurality of test zones by the partition plates, a clamp is fixed at the center of each test zone, and a fixed part is symmetrically arranged at both ends of the clamp.

[0007] The clamp includes an arc-shaped plate, a clamping plate is rotatably arranged on both sides of the arc-shaped plate, a plurality of heat dissipation grooves are formed through the clamping plate, and the clamping plate is used to clamp and fix the lithium battery.

[0008] Further, the clamping plate is arc-shaped, and a connecting plate is fixedly connected to the bottom of the clamping plate. The connecting plate is a straight plate, and a plurality of elastic strips are fixedly arranged on the inner wall of the clamping plate.

[0009] Further, a plurality of fixed blocks and a long plate are fixedly arranged on the bottom plate, a limiting groove is formed in the fixed block, one end of the connecting plate is rotatably installed in the limiting groove, and a bolt is threadedly arranged through the fixed block and the connecting plate.

[0010] Further, springs are fixedly arranged at both ends of the top of the long plate, the other end of the spring is fixedly connected with the lower surface of the arc-shaped plate, and the long plate is located at the four corner edges of the arc-shaped plate.

[0011] Further, the fixed part comprises a fixed plate slidably arranged on the upper surface of the bottom plate, two screw rods are rotatably arranged at one side of the fixed plate, a connecting block is fixedly arranged at one end of the screw rod, the connecting block is rotatably installed in the fixed plate, and a through hole is formed in the center of the fixed plate.

[0012] Further, the screw rod penetrates through the limiting plate and is threadedly connected with the limiting plate, and a nut is threadedly arranged at one end of the screw rod.

[0013] Further, an electromagnetic shielding layer is fixedly arranged in the partition plate, and the partition plate is used for reducing electromagnetic interference between lithium batteries.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. In the clamp for testing the residual power release of lithium battery, the clamp is arranged and cooperates with the arc-shaped plate to clamp and fix the lithium battery, different sizes of lithium batteries can be applied, the contour of the lithium battery is ensured to be closely combined, the surface area of the clamping plate is increased by the heat dissipation groove on the clamping plate, the heat dissipation effect is improved, the clamping stability is improved by the design of the elastic strip, and the damage or deformation of the lithium battery caused by clamping too tightly is also reduced.

[0016] 2. In the clamp for testing the residual power release of lithium battery, the fixed part is arranged to ensure that the lithium battery is stable in the horizontal position and is not easy to shake or displace, the clamp is used in cooperation with the fixed part, the lithium battery can be fixed in all directions, and the accuracy and reliability of the test are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the lithium battery clamp in the preferred embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of the fixed part in the preferred embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of the overall structure of the clamp in the preferred embodiment of the utility model;

[0020] Figure 4The schematic diagram of the overall structure of the clamping plate in the preferred embodiment of the utility model is shown in the figure.

[0021] Figure 5 The schematic diagram of the overall structure of the arc-shaped plate in the preferred embodiment of the utility model is shown in the figure.

[0022] Figure 6 The schematic diagram of the overall structure of the clamping plate in the preferred embodiment of the utility model is shown in the figure. Figure 5 The schematic diagram of the structure at A in the figure is shown in the figure.

[0023] The schematic diagram of the structure at A in the figure is shown in the figure.

[0024] 1, base plate; 11, limiting plate; 12, partition plate;

[0025] 2, clamp; 21, clamping plate; 211, heat dissipation groove; 212, elastic strip; 213, connecting plate; 22, arc-shaped plate; 221, spring; 23, fixed block; 231, limiting groove; 232, bolt; 24, long plate;

[0026] 3, fixed part; 31, fixed plate; 32, through hole; 33, screw rod; 331, connecting block; 34, nut. DETAILED DESCRIPTION

[0027] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model are described in detail as follows in combination with the preferred embodiments and the drawings.

[0028] Please refer to Figures 1-6 The utility model discloses a clamp for testing the residual energy release of lithium battery, which comprises a base plate 1, a plurality of limiting plates 11 are symmetrically arranged on the base plate 1, a plurality of partition plates 12 are fixed between the limiting plates 11, the area between the limiting plates 11 is divided into a plurality of test areas by the partition plates 12, a clamp 2 is fixed at the center of each test area, and a fixed part 3 is symmetrically arranged at the two ends of the clamp 2.

[0029] The clamp 2 comprises an arc-shaped plate 22, clamping plates 21 are rotatably arranged at the two sides of the arc-shaped plate 22, a plurality of heat dissipation grooves 211 are formed through the clamping plates 21, and the clamping plates 21 are used for clamping and fixing lithium batteries.

[0030] The clamping plate 21 is arc-shaped, which can better fit the surface of the lithium battery, thereby providing uniform clamping force and avoiding local stress concentration during clamping, which can cause surface damage or deformation of the lithium battery. The bottom of the clamping plate 21 is fixedly connected with a connecting plate 213, which is a straight plate. A plurality of elastic strips 212 are fixedly arranged on the inner wall of the clamping plate 21. The elastic strips 212 are made of soft and elastic materials such as rubber or silicone. The main function is to provide additional clamping force and buffering effect to prevent the lithium battery from being damaged by excessive pressure during clamping. At the same time, the elastic strips 212 can also increase the friction between the clamping plate 21 and the lithium battery, ensuring that the lithium battery maintains a stable position during testing.

[0031] The heat dissipation grooves 211 are evenly arranged between the elastic strips 212, which increase the heat dissipation area of the clamping plate 21 and improve the heat dissipation efficiency of the lithium battery during testing. Through the heat dissipation grooves 211, the heat generated by the lithium battery can be effectively dissipated, avoiding the accumulation of heat and causing the temperature of the lithium battery to be too high, thereby affecting the accuracy of the test and the performance of the lithium battery.

[0032] A plurality of fixed blocks 23 and long plates 24 are fixedly arranged on the bottom plate 1. Limiting grooves 231 are formed in the fixed blocks 23. One end of the connecting plate 213 is rotatably installed in the limiting grooves 231. The width of the limiting grooves 231 is greater than the thickness of the connecting plate 213, allowing the connecting plate 213 to freely rotate in the limiting grooves 231. Screws 232 are threadedly arranged through the fixed blocks 23 and the connecting plate 213. Since there are many sizes of lithium batteries, when different diameters of lithium batteries need to be clamped, the user can manually rotate the connecting plate 213 to adjust the angle of the clamping plate 21, so that it reaches the best clamping angle and matches the profile of the lithium battery, thereby accurately clamping and fixing the lithium battery. The position of the connecting plate 213 is fixed by tightening the screws 232.

[0033] The long plates 24 are fixedly arranged at both ends of the top of the long plates 24. The springs 221 are fixedly connected with the lower surface of the arc-shaped plate 22 at the other end. The long plates 24 are located at the four corner edges of the arc-shaped plate 22. The clamping plate 21 clamps and fixes the lithium battery downward, and the surface of the lithium battery is tightly attached to the surface of the arc-shaped plate 22.

[0034] The elastic setting of the springs 221 allows the arc-shaped plate 22 to move up and down within a certain range, thereby adapting to different sizes of lithium batteries. When the lithium battery is placed in the clamp 2, the spring 221 will automatically adjust its compression degree according to the size of the lithium battery to ensure that the arc-shaped plate 22 can tightly attach to the surface of the lithium battery. Due to the arc-shaped design of the arc-shaped plate 22, it can adapt to lithium batteries of different diameters, thereby ensuring the universality and adaptability of the clamp 2. The longitudinal position of the lithium battery is fixed by the cooperation of the clamping plate 21 and the arc-shaped plate 22.

[0035] The fixing part 3 comprises a fixing plate 31 slidingly arranged on the upper surface of the base plate 1, two screw rods 33 are rotatably arranged on one side of the fixing plate 31, a connecting block 331 is fixedly arranged at one end of each screw rod 33, the connecting block 331 is rotatably installed in the fixing plate 31, and a through hole 32 is formed in the center of the fixing plate 31, which is designed to expose the positive and negative poles of the lithium battery, so that the test equipment can accurately contact the positive and negative poles of the lithium battery, to ensure that the test equipment can form a good electrical connection with the lithium battery, thereby testing the remaining capacity release of the lithium battery.

[0036] The screw rod 33 penetrates the limiting plate 11 and is threadedly connected therewith, can freely rotate and move axially in the limiting plate 11, thereby adjusting the distance between the fixing plates 31, a nut 34 is threadedly arranged at one end of the screw rod 33, the distance between the fixing plates 31 is adjusted by rotating the screw rod 33, thereby fixing the transverse position of the lithium battery, when the nut 34 moves to tightly fit the side wall of the limiting plate 11, the screw rod 33 is fixed by tightening the nut 34, thereby fixing the distance between the fixing plates 31.

[0037] By cooperating the clamp 2 with the fixing part 3, the lithium battery can be fixed in all directions. The clamp 2 is mainly responsible for fixing the longitudinal position of the lithium battery, and the lithium battery is clamped and fixed on the arc-shaped plate 22 by the cooperation of the clamping plate 21 and the arc-shaped plate 22. The fixing part 3 is mainly responsible for fixing the transverse position of the lithium battery, which is realized by adjusting the distance between the fixing plates 31 and tightening the nut 34, facilitating the connection of the test equipment for testing.

[0038] The material of the partition plate 12 is insulating alloy, which has good insulation performance and mechanical strength, and an electromagnetic shielding layer is fixedly arranged in the partition plate 12, which is used to reduce the electromagnetic interference between the lithium batteries. The electromagnetic shielding layer is a material layer that can block or weaken the propagation of electromagnetic waves, which is usually made of conductive materials such as copper foil, aluminum foil or special conductive polymers. The main function of the electromagnetic shielding layer is to reduce the electromagnetic interference between the lithium batteries, to ensure that each lithium battery can maintain an independent electromagnetic environment during testing or use, thereby avoiding adverse effects between each other. When the lithium batteries are working, they will generate certain electromagnetic waves, if multiple lithium batteries are arranged together, these electromagnetic waves may interfere with each other, causing unstable battery performance or test result error. By arranging the electromagnetic shielding layer in the partition plate 12, the propagation of these electromagnetic waves can be effectively blocked or weakened, thereby reducing the electromagnetic interference between the lithium batteries.

[0039] The utility model discloses in specific use, place the lithium battery on arc plate 22, according to the diameter of lithium battery, manually rotate connecting plate 213, adjust the angle of clamping plate 21, make it with the profile of lithium battery match, because the elasticity of spring 221, clamping plate 21 press down lithium battery and arc plate 22 closely cooperate, adapt to the lithium battery of different size, tighten bolt 232, the position of fixed connecting plate 213 to fixed clamping plate 21 and the longitudinal position of lithium battery, rotate screw rod 33, adjust the interval between fixed plate 31, until lithium battery is firmly clamped, tighten nut 34, the position of fixed screw rod 33 and fixed plate 31 to fixed the transverse position of lithium battery, the connecting wire of test equipment is connected with the positive and negative pole of lithium battery through through -hole 32.

[0040] The above is only the preferred embodiment of the utility model, and does not limit the utility model in any form, although the utility model has disclosed as above with the preferred embodiment, however, is not used to limit the utility model, any person skilled in the art, within the scope of the utility model technical scheme, can make some more changes or modification as equivalent embodiment of equivalent change with the above disclosed technical content, but as long as not departing from the utility model technical scheme content, according to the technical essence of the utility model, any brief introduction modification, equivalent change and modification of the above embodiment, still belong to the range of the utility model technical scheme.

Claims

1. A fixture for testing the release of residual energy of a lithium battery, comprising a base plate (1), a limiting plate (11) is fixed symmetrically on the base plate (1), characterized in that, A plurality of partition plates (12) are fixedly arranged between the limiting plates (11), the partition plates (12) divide the area between the limiting plates (11) into a plurality of test areas, a clamp (2) is fixedly arranged at the center of each test area, and the clamp (2) is symmetrically provided with a fixed part (3) at both ends. The clamp (2) comprises an arc-shaped plate (22), the arc-shaped plate (22) is rotatably provided with a clamping plate (21) on both sides, a plurality of heat dissipation grooves (211) are formed through the clamping plate (21), and the clamping plate (21) is used for clamping and fixing the lithium battery.

2. The fixture for testing the release of residual electrical energy of a lithium battery according to claim 1, characterized in that, The clamping plate (21) is arc-shaped, the clamping plate (21) is fixedly connected with a connecting plate (213) at the bottom, the connecting plate (213) is a straight plate, and a plurality of elastic strips (212) are fixedly arranged on the inner wall of the clamping plate (21).

3. The fixture for testing the release of residual electrical energy of a lithium battery according to claim 2, characterized in that, A plurality of fixed blocks (23) and long plates (24) are fixedly arranged on the bottom plate (1), a limiting groove (231) is formed in the fixed block (23), one end of the connecting plate (213) is rotatably installed in the limiting groove (231), and a bolt (232) is threadedly arranged through the fixed block (23) and the connecting plate (213).

4. The fixture for testing the release of residual electrical energy of a lithium battery according to claim 3, characterized in that, The long plate (24) is fixedly provided with a spring (221) at both ends of the top, the other end of the spring (221) is fixedly connected with the lower surface of the arc-shaped plate (22), and the long plate (24) is located at the four corner edges of the arc-shaped plate (22).

5. The fixture for testing the release of residual electrical energy of a lithium battery according to claim 1, wherein, The fixed part (3) comprises a fixed plate (31) slidably arranged on the upper surface of the bottom plate (1), two screw rods (33) are rotatably arranged on one side of the fixed plate (31), one end of the screw rod (33) is fixedly provided with a connecting block (331), the connecting block (331) is rotatably installed in the fixed plate (31), and a through hole (32) is formed through the center of the fixed plate (31).

6. The fixture for testing the release of residual electrical energy of a lithium battery according to claim 5, characterized in that, The screw rod (33) penetrates the limiting plate (11) and is threadedly connected therewith, and a nut (34) is threadedly arranged at one end of the screw rod (33).

7. The fixture for testing the release of residual electrical energy of a lithium battery according to claim 1, wherein An electromagnetic shielding layer is fixedly arranged in the partition plate (12), and the partition plate (12) is used for reducing electromagnetic interference between lithium batteries.

Images