Clamping device for battery test

Abstract

The utility model provides a clamping device for battery testing. The clamping device comprises a bottom plate; the two oppositely arranged length adjusting plates are arranged on the bottom plate, each length adjusting plate comprises a vertical plate, and a tested battery is placed between the two opposite vertical plates; kidney-shaped holes are formed in the two opposite vertical plates, and the length direction of the kidney-shaped holes extends in the height direction of the vertical plates; the test probes and the kidney-shaped holes are fixed through the probe fixing nuts, so that the test probes and the kidney-shaped holes are fixed to the corresponding vertical plates, and the first ends of the test probes on the two opposite vertical plates are used for making contact with the nearest end face of the tested battery. And the height and the length can be adjusted to match the heights of two poles of batteries with different models and sizes, so that the test cost is reduced, and the test efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery testing technology auxiliary technology, and in particular to a clamping device for battery testing. Background Technology

[0002] Cylindrical batteries boast high energy density, a safety upper limit allowing support for higher energy density chemistry systems, and compatibility with all-tab technology, enhancing safety and fast-charging performance. Their production efficiency is 4-5 times that of prismatic batteries. Currently, cylindrical batteries account for over 70% of the market, making them one of the major application markets. While the industrialization of cylindrical batteries is accelerating, immature key technologies and other factors constrain large-scale production. In particular, during R&D and experimental battery performance testing, each battery model requires a separate testing device, which increases costs and reduces efficiency. Utility Model Content

[0003] Based on the above problems, this utility model provides a clamping device for battery testing, which aims to solve the technical problems of high cost and low efficiency in existing battery testing technologies.

[0004] A clamping device for battery testing, comprising:

[0005] Base plate;

[0006] Two opposing length adjustment plates are set on the base plate. Each length adjustment plate includes a vertical plate, and the battery to be tested is placed between the two opposing vertical plates.

[0007] Both opposing upright plates are provided with waist holes, the length of which extends along the height of the upright plate;

[0008] The probe fixing nut is used to fix the test probe and the waist hole, thereby fixing them to the corresponding upright plate. The first end of the test probe on the two opposing upright plates is used to contact the nearest end face of the battery under test.

[0009] Furthermore, the test probe is a spring test probe.

[0010] Furthermore, the length adjustment plate also includes a horizontal plate, and the horizontal plate and the vertical plate of the length adjustment plate form an L shape;

[0011] The base plate has two parallel strip-shaped holes;

[0012] Fixing holes are provided at the positions corresponding to the horizontal plate and each strip hole, and nuts are used to fix the horizontal plate and the base plate in the fixing holes.

[0013] Furthermore, the horizontal plate has test line inlets corresponding to each strip hole.

[0014] Furthermore, the base plate is provided with a groove, and the strip hole is set in the groove.

[0015] Furthermore, the dimensions of the horizontal plate in the first direction are adapted to the width of the groove;

[0016] The first direction is perpendicular to the length direction of the slot;

[0017] The length of the groove is parallel to the length of the strip hole.

[0018] Furthermore, the distance from the center line between the two slots to the two long sides of the groove is the same.

[0019] Furthermore, the centerline of the waist hole along its length and the centerline between the two strip holes are coplanar.

[0020] The beneficial technical effects of this utility model are as follows: This utility model sets up a pair of length adjustment plates, each plate has a waist hole, and the relative distance between the length adjustment plates can be adjusted to match the length of the battery. The waist hole can adjust the height of the test probe to match the height of the two poles of batteries of different models and sizes. The adjustable device can be suitable for the performance testing of various battery models, reducing testing costs and improving testing efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a clamping device for battery testing according to the present invention.

[0022] 1-Base plate;

[0023] 2-Upright board;

[0024] 3-The battery under test;

[0025] 4- Waist hole;

[0026] 5-Probe retaining nut;

[0027] 6-Test probe;

[0028] 7-Horizontal plate;

[0029] 8-Strip-shaped hole;

[0030] 9-Fixing hole;

[0031] 10 - Test line entrance;

[0032] 11-Groove. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0036] See Figure 1 This utility model provides a clamping device for battery testing, comprising:

[0037] Base plate 1;

[0038] Two opposing length adjustment plates are set on the base plate 1. Each length adjustment plate includes a vertical plate 2. The battery to be tested 3 is placed between the two opposing vertical plates 2.

[0039] Each of the two opposing upright plates 2 is provided with a waist hole 4, and the length of the waist hole 4 extends along the height of the upright plate.

[0040] The probe fixing nut 5 is used to fix the test probe 6 and the waist hole 4, thereby fixing them to the corresponding upright plate 2. The first end of the test probe 6 on the two opposing upright plates 2 is used to contact the nearest end face of the battery under test 3.

[0041] This invention utilizes a pair of length adjustment plates, raising the two end plates and machining them into elongated openings. The height and length of the two ends are adjusted according to the long diameter and length of the battery being tested to match the device to the battery, enabling rapid testing of cylindrical batteries of different models. Specifically, the relative distance between the length adjustment plates can be adjusted to match the battery length, and the elongated openings can adjust the height of the test probes to match the height of the two poles of batteries of different models and sizes. The length and height can be manually adjusted according to different battery models and sizes to match the testing conditions. This adjustable device is suitable for performance testing of various battery models and sizes, reducing testing costs and improving testing efficiency. This battery testing clamping device can be widely used in battery testing experiments.

[0042] Specifically, the battery is a cylindrical battery. For cylindrical batteries of different diameters, the height of the test probes on the waist hole is adjusted to match the two poles of the cylindrical battery. The first end of one test probe contacts the positive pole of the cylindrical battery, and the first end of the other test probe contacts the negative pole of the cylindrical battery.

[0043] Specifically, the cylindrical battery is of the lithium iron phosphate, ternary, or sodium-ion battery type.

[0044] Furthermore, test probe 6 is a spring test probe.

[0045] The first ends of the two spring test probes are respectively in contact with the positive / negative terminals of the battery, and the second ends are connected to the test leads for testing.

[0046] Furthermore, the length adjustment plate also includes a horizontal plate 7, and the horizontal plate 7 and the vertical plate 2 of the length adjustment plate form an L shape;

[0047] The base plate 1 has two parallel strip-shaped holes 8;

[0048] The horizontal plate 7 and each strip hole 8 are provided with fixing holes 9 at corresponding positions, and the horizontal plate 7 and the base plate 1 are fixed by nuts in the fixing holes.

[0049] The horizontal plate 7 moves horizontally on the base plate 1 to adjust the length distance between the two vertical plates. After adjusting the length distance according to the battery being tested, the horizontal plate 7 is then fixed to the base plate 1 with bolts and nuts to achieve a fixed length between the two vertical plates.

[0050] Furthermore, the horizontal plate 7 has test line inlets 10 corresponding to each strip hole 8.

[0051] After the length is fixed, the test lead is introduced from below into the horizontal plate 7 through the strip hole 8, and then into the test probe for connection. This avoids the test lead extending from the end face of the base plate, shortening and elongating as the length is adjusted, which would affect aesthetics and neatness. Furthermore, having test leads at both ends connected to the test probe would compromise aesthetics and neatness, and could lead to instability in the contact connection with the test probe due to easy contact by the tester. By always entering from below, and with a relatively fixed distance between the test lead inlet 10 and the strip hole, connection to the test probe is easier and contact with the tester is reduced.

[0052] Furthermore, the base plate 1 is provided with a groove 11, and the strip hole 8 is provided in the groove 11.

[0053] Furthermore, the dimensions of the horizontal plate 7 in the first direction are adapted to the width dimensions of the groove 11;

[0054] The first direction is perpendicular to the length direction of the strip hole 8;

[0055] The length of the groove 11 is parallel to the length of the strip hole 8.

[0056] By confining the length adjustment plate within the groove, the simple design of the groove prevents the length adjustment plate from shifting in the width direction without the need for additional specialized restraint mechanisms, thus avoiding the test probes from deviating from the battery poles and affecting the test.

[0057] Furthermore, the distance from the center line between the two strip holes 8 to the two long sides of the groove 11 is the same.

[0058] Furthermore, the centerline of the waist hole along its length and the centerline between the two strip holes 8 are coplanar.

[0059] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A clamping device for battery testing, characterized by, The utility model relates to a battery testing device, including: a bottom plate (1); two length adjusting plates oppositely arranged on the bottom plate (1), each length adjusting plate comprising a vertical plate (2), a battery (3) to be tested being placed between the two opposite vertical plates (2); a waist hole (4) being arranged on each of the two opposite vertical plates (2), the length direction of the waist hole (4) extending along the height direction of the vertical plate; a probe fixing nut (5) being used to fix a test probe (6) and the waist hole (4) so as to be fixed to the corresponding vertical plate (2), the first end of the test probe (6) on the two opposite vertical plates (2) being used to contact the nearest end face of the battery (3) to be tested.

2. The battery test clamping device of claim 1, wherein, The test probe (6) is a spring test probe.

3. The battery test clamping device of claim 1, wherein, The length adjusting plate further comprises a horizontal plate (7), the horizontal plate (7) and the vertical plate (2) of the length adjusting plate forming an L shape; the bottom plate (1) being provided with two parallel strip-shaped holes (8); a fixing hole (9) being arranged at the corresponding position of the horizontal plate (7) and each strip-shaped hole (8), the fixing of the horizontal plate (7) and the bottom plate (1) being realized through the fixing hole and a nut.

4. The battery test clamping device of claim 3, wherein, a test line inlet (10) being arranged on the horizontal plate (7) and corresponding to each strip-shaped hole (8).

5. The battery test clamping device of claim 3, wherein, a groove (11) being arranged on the bottom plate (1), the strip-shaped hole (8) being arranged in the groove (11).

6. A clamping device for testing a battery as defined in claim 5, wherein the size of the horizontal plate (7) in the first direction and the width size of the groove (11) being matched; the first direction being perpendicular to the length direction of the strip-shaped hole (8); the length direction of the groove (11) being parallel to the length direction of the strip-shaped hole (8).

7. The battery test clamping device of claim 5, wherein, the distance from the center line between the two strip-shaped holes (8) to the two long sides of the groove (11) being the same.

8. A clamping device for testing a battery as defined in claim 7, characterized in that the center line of the length direction of the waist hole and the center line of the length direction of the waist hole and the center line between the two strip-shaped holes (8) being coplanar.

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