Lithium battery voltage and internal resistance testing device

Abstract

The utility model relates to a lithium battery voltage internal resistance testing device, which comprises a bottom plate assembly, a supporting assembly and a testing assembly, and is characterized in that the bottom plate assembly comprises a bottom plate, and a battery testing area is arranged on the bottom plate; the supporting assembly comprises a supporting rod and an adjusting rod, the bottom end of the supporting rod is vertically arranged on the bottom plate, and the adjusting rod is arranged on the supporting rod in a sliding mode; the test assembly comprises a quick fixing pressure clamp, a probe fixing plate and a probe, the quick fixing pressure clamp is fixed at one end of the adjusting rod, the bottom end of the quick fixing pressure clamp is connected with the middle part of the probe fixing plate, and the probe fixing plate is vertically connected with a pressure clamp rod of the quick fixing pressure clamp; the left part and the right part of the probe fixing plate are respectively provided with a mounting hole, a probe is arranged in the mounting hole, and the probe can move in the mounting hole to adjust the position and is fixed; the test assembly is arranged above the battery test area, and the probe is used for performing contact test with the lithium battery to be tested in the battery test area. The lithium battery internal resistance testing device can adjust the positions of the adjusting rod and the probe, and is suitable for voltage internal resistance testing of lithium batteries of different specifications.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production equipment, in particular to a lithium battery voltage internal resistance testing device. Background Art

[0002] Lithium-ion batteries have the advantages of high voltage, large capacity, long cycle life, no memory effect, light weight, and wide operating range. The market currently has higher and higher requirements for the performance and capacity of lithium-ion batteries. In the existing technology, the safety of large-capacity lithium-ion batteries has always been one of the main issues restricting their development, so in actual production, voltage resistance test devices are used to test the batteries.

[0003] In the process of testing the voltage internal resistance of lithium batteries, manual testing is usually used to connect the lithium batteries. For example, the tester places the lithium battery on the test bench and uses both hands to touch the positive and negative electrodes of the lithium battery with the test probes to read the test data. However, this manual operation method is prone to poor contact between the probe and the lithium battery pole, different measurement positions and different forces, resulting in inaccurate test data, and the operation is cumbersome and time-consuming.

[0004] Therefore, based on the above-mentioned defects in the prior art, there is an urgent need in the art to develop a lithium battery voltage internal resistance testing device that is easy to operate and accurate in testing. Summary of the invention

[0005] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a lithium battery voltage internal resistance testing device to solve the problems of poor contact, different measurement positions and different forces. It is easy to operate, time-saving and efficient, has good versatility, a wide range of applications and high accuracy.

[0006] The purpose of the utility model is achieved in this way:

[0007] A lithium battery voltage internal resistance test device, comprising a base plate assembly, a support assembly and a test assembly, wherein the base plate assembly comprises a base plate, on which a battery test area is arranged; the support assembly comprises a support rod and an adjustment rod, wherein the bottom end of the support rod is vertically arranged on the base plate, and the adjustment rod is slidably arranged on the support rod;

[0008] The test assembly includes a quick-fix pliers, a probe fixing plate and a probe, wherein the quick-fix pliers is fixed at one end of an adjusting rod, the bottom end of the quick-fix pliers is connected to the middle of the probe fixing plate, and the probe fixing plate is vertically connected to the pliers rod of the quick-fix pliers; a mounting hole is respectively provided on the left and right parts of the probe fixing plate, and a probe is arranged in the mounting hole, and the probe can be moved and fixed in the mounting hole to adjust the position; the test assembly is arranged above a battery test area, and the probe is used to perform a contact test with a lithium battery to be tested in the battery test area.

[0009] Furthermore, the bottom plate is also provided with a first limiting plate and a second limiting plate, the first limiting plate and the second limiting plate are arranged on the bottom plate, the first limiting plate and the second limiting plate are arranged vertically, and a battery testing area is formed therebetween.

[0010] Furthermore, the adjusting rod is provided with a row of evenly distributed guide holes, and the side of the adjusting rod is provided with a row of screw holes corresponding to the guide holes for inserting rotating screws, and the supporting rod is inserted into the guide holes on the adjusting rod and fixed by rotating screws.

[0011] Furthermore, the mounting hole is a long waist-shaped hole.

[0012] Furthermore, the probes in the two mounting holes of the probe fixing plate are positive electrode probes and negative electrode probes respectively.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides a lithium battery voltage internal resistance test device, which replaces manual work to perform voltage internal resistance test on lithium batteries by arranging the cooperation of a bottom plate assembly, a support assembly and a test assembly, and can realize probe position adjustment in three directions of x, y and z, with convenient operation, time saving and high efficiency; and the limit plate on the bottom plate is movable, which is suitable for voltage internal resistance test of lithium batteries of different specifications, and has the characteristics of good versatility, wide application range and low production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a structural schematic diagram of the utility model from another angle.

[0017] Figure 3 It is a side view of the utility model.

[0018] in:

[0019] Base plate assembly 1, base plate 101, first limit plate 102, second limit plate 103, support assembly 2, support rod 201, adjustment rod 202, guide hole 203, rotating screw 204, test assembly 3, quick fixing clamp 301, probe fixing plate 302, probe 303, mounting hole 304. DETAILED DESCRIPTION

[0020] In order to better understand the technical solution of the present invention, the following will be described in detail in conjunction with the relevant illustrations. It should be understood that the following specific embodiments are not intended to limit the specific implementation of the technical solution of the present invention, and are only implementations that can be adopted by the technical solution of the present invention. It should be noted that the description of the positional relationship of each component in this article, such as component A being located above component B, is based on the description of the relative positions of the components in the illustration, and is not intended to limit the actual positional relationship of the components. Example 1

[0021] See also Figure 1-Figure 3 , Figure 1 The schematic diagram of the structure of the utility model is drawn. As shown in the figure, the utility model relates to a lithium battery voltage internal resistance test device, which includes a bottom plate assembly 1, a support assembly 2 and a test assembly 3, the bottom plate assembly 1 includes a bottom plate 101, a first limit plate 102 and a second limit plate 103, the first limit plate 102 and the second limit plate 103 are arranged on the bottom plate 101, the first limit plate 102 and the second limit plate 103 are arranged vertically, and a battery test area is formed between the two.

[0022] The first limiting plate 102 and the second limiting plate 103 are L-shaped.

[0023] The support assembly 2 includes a support rod 201 and an adjusting rod 202. The bottom end of the support rod 201 is vertically arranged on the base plate 101, and the adjusting rod 202 is slidably arranged on the support rod 201; a row of evenly distributed guide holes 203 are arranged on the adjusting rod 202, and a row of screw holes corresponding to the guide holes 203 are arranged on the side of the adjusting rod 202 for inserting a rotating screw 204. The support rod 201 is inserted into the guide hole 203 on the adjusting rod 202 and fixed by the rotating screw 204.

[0024] The test assembly 3 includes a quick-fix clamp 301, a probe fixing plate 302 and a probe 303. The quick-fix clamp 301 is fixed to one end of the adjusting rod 202, the bottom end of the quick-fix clamp 301 is connected to the middle of the probe fixing plate 302, and the probe fixing plate 302 is vertically connected to the clamp rod of the quick-fix clamp 301; the left and right parts of the probe fixing plate 302 are respectively provided with a mounting hole 304, the mounting hole 304 is a long waist-shaped hole, and the probe 303 is arranged in the mounting hole 304, and the probe 303 can be moved in the mounting hole 304 to adjust the position and be fixed.

[0025] The test assembly 3 is arranged above the battery test area, and the probe 303 is used to perform a contact test with the lithium battery to be tested in the battery test area.

[0026] The probes 303 in the two mounting holes 304 of the probe fixing plate 302 are positive and negative probes respectively.

[0027] Working principle:

[0028] A lithium battery voltage internal resistance testing device according to the present embodiment, the testing component adjusts its position in the y-axis direction by sliding the adjusting rod on the support rod, adjusts its position in the x-axis direction by adjusting the support rod to insert into different guide holes, and adjusts its position in the z-axis direction by moving the probe in the long mounting hole, thereby achieving adjustment of the probe position in three directions; the quick fixing clamp is used to drive the probe fixing plate to move up and down in the direction of the battery testing area, so that the probe can be contacted with the lithium battery in the battery testing area for testing.

[0029] The above are only specific application examples of the utility model, and do not constitute any limitation on the protection scope of the utility model. Any technical solution formed by equivalent transformation or equivalent replacement falls within the protection scope of the utility model.

Claims

1. A lithium battery voltage internal resistance test device, characterized in that: It comprises a base plate assembly (1), a support assembly (2) and a test assembly (3), wherein the base plate assembly (1) comprises a base plate (101), and a battery test area is provided on the base plate (101); the support assembly (2) comprises a support rod (201) and an adjustment rod (202), the bottom end of the support rod (201) is vertically arranged on the base plate (101), and the adjustment rod (202) is slidably arranged on the support rod (201); The test assembly (3) comprises a quick-fixing pressure clamp (301), a probe fixing plate (302) and a probe (303); the quick-fixing pressure clamp (301) is fixed to one end of an adjusting rod (202); the bottom end of the quick-fixing pressure clamp (301) is connected to the middle of the probe fixing plate (302); the probe fixing plate (302) is vertically connected to the pressure clamp rod of the quick-fixing pressure clamp (301); a mounting hole (304) is respectively provided on the left and right parts of the probe fixing plate (302); a probe (303) is arranged in the mounting hole (304); the probe (303) can be moved and adjusted in position and fixed in the mounting hole (304); the test assembly (3) is arranged above a battery test area; the probe (303) is used to perform a contact test with a lithium battery to be tested in the battery test area.

2. A lithium battery voltage internal resistance test device according to claim 1, characterized in that: A first limiting plate (102) and a second limiting plate (103) are also provided on the bottom plate (101); the first limiting plate (102) and the second limiting plate (103) are arranged on the bottom plate (101); the first limiting plate (102) and the second limiting plate (103) are arranged vertically, and a battery test area is formed between the first limiting plate (102) and the second limiting plate (103).

3. A lithium battery voltage internal resistance test device according to claim 1, characterized in that: The adjusting rod (202) is provided with a row of evenly distributed guide holes (203); the side of the adjusting rod (202) is provided with a row of screw holes corresponding to the guide holes (203) for inserting rotating screws (204); the supporting rod (201) is inserted into the guide holes (203) on the adjusting rod (202) and fixed by the rotating screws (204).

4. A lithium battery voltage internal resistance test device according to claim 1, characterized in that: The mounting hole (304) is a long waist-shaped hole.

5. A lithium battery voltage internal resistance test device according to claim 1, characterized in that: The probes (303) in the two mounting holes (304) of the probe fixing plate (302) are respectively positive electrode probes and negative electrode probes.

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