Multi-specification battery cell test fixture

Abstract

The utility model discloses a kind of fixture for multi-specification battery testing, including support piece, the support piece one end is vertically fixed with guide pillar, guide pillar two sides are respectively sleeved with the adjustable rack of slidable, spring is respectively sleeved on the guide pillar of each adjustable rack two sides;Each adjustable rack end is respectively fixed with chuck, chuck is respectively fixed with test probe on it.The utility model discloses a kind of fixture for multi-specification battery testing, using adjustment fixture direction and structural improvement, ensure that fixture can be adapted to the clamping test of multi-specification battery, there is convenient movement and fixed accessory on chuck spacing, it will not cause clamping to be bad because of replacing battery type.Adapt to cylindrical battery when using spring to exert pressure to fixture, adapt to square and soft package battery when using adjusting bolt to determine chuck spacing to adapt to current collector spacing.

Description

Technical Field

[0001] This utility model belongs to the field of testing equipment technology, and specifically relates to a fixture for testing multi-specification battery cells. Background Technology

[0002] The portability and high energy density of lithium-ion batteries have fueled the rapid development of the battery industry, leading to a surge in the availability of various cell specifications, primarily cylindrical, prismatic, and pouch cells. This diversity in cell specifications significantly expands the application scenarios for batteries. However, the wide range of cell specifications presents numerous challenges in testing. Cell testing fixtures are often incompatible, necessitating the purchase of multiple fixtures for incoming cell inspection. Furthermore, since fixtures are crucial for cell testing, the lack of easy replacement methods across different equipment manufacturers' test cabinets complicates fixture changes and increases the risk of inaccurate test data due to improper operation and poor contact. This places high demands on the technical skills and experience of production operators. Utility Model Content

[0003] The purpose of this invention is to provide a multi-specification battery cell testing fixture that can accommodate multiple specifications of battery cells, including both pouch and cylindrical cells, and can accurately clamp and fix them while improving work efficiency.

[0004] The technical solution of this utility model is: A multi-specification battery cell testing fixture includes a support member, one end of which is vertically fixed with a guide post, and two sides of the guide post are fitted with slidable adjustment frames, with springs fitted on the guide posts on both sides of each adjustment frame; each end of each adjustment frame is fixed with a clamp, and a test probe is fixed on the clamp.

[0005] Preferably, the adjusting frame and the guide column are fixed together by adjusting bolts.

[0006] Preferably, the clamp is provided with a clamping iron shaft, and the probe is fixedly installed at one end of the clamping iron shaft. The probes on the two clamps are positioned opposite each other and are used to detect the two poles of the battery cell.

[0007] Preferably, the clamp shaft has a hollow tube for passing through a wire, which is used to connect the probe and an external testing device.

[0008] Preferably, the chuck surface is provided with an anti-slip groove.

[0009] Preferably, the chuck surface is also provided with a temperature sensor.

[0010] Preferably, the support includes a vertical support rod and a circular base, with the lower end of the support rod fixed to the circular base and the upper end fixed to a guide post.

[0011] The advantages of this utility model are: 1. This utility model provides a multi-specification battery cell testing fixture. Through adjustments to the fixture's direction and structural improvements, it ensures the fixture can accommodate the clamping and testing of various battery cell specifications. The fixture features easily movable and fixing accessories at the clamp spacing, preventing clamping defects caused by changing battery cell types. When accommodating cylindrical battery cells, a spring applies pressure to the clamp; when accommodating prismatic and pouch battery cells, an adjusting bolt is used to determine the clamp spacing to accommodate the current collector spacing.

[0012] 2. The clamp of this utility model is equipped with a temperature sensor, which is fixed by the clamp and can be connected to a temperature sensing wire to facilitate testing the heat dissipation of the battery cell at different temperatures. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of the multi-specification battery cell testing fixture of this utility model. Detailed Implementation

[0014] like Figure 1 As shown, the multi-specification battery cell testing fixture of this utility model includes a support member 1. A guide post 2 is vertically fixed to one end of the support member 1. Sliding adjustment frames 3 are respectively fitted on both sides of the guide post 2. Springs 4 are respectively fitted on the guide posts on both sides of each adjustment frame 3. A clamp 5 is fixed to the end of each adjustment frame 3, and a test probe 6 is fixed on the clamp 5. Each adjustment frame 3 is fixed to the guide post 2 by adjusting bolts 7.

[0015] This invention utilizes an adjusting bracket 3 to slide left and right on the guide post 2 to adjust the clamp spacing, ensuring that the clamp can accommodate the clamping and testing of various battery cell specifications. The clamps 5 have convenient moving and fixing accessories to prevent clamping defects caused by changing battery cell types. When accommodating cylindrical battery cells, a spring 4 is used to apply pressure to the clamp; when accommodating prismatic and pouch battery cells, an adjusting bolt 7 is used to determine the clamp spacing to accommodate the current collector spacing.

[0016] Specifically, the clamp 5 is provided with a clamping iron shaft 8, and the probe 6 is threadedly fixed to one end of the clamping iron shaft 8. The probes 6 on the two clamps 5 are positioned opposite each other and are used to detect the two poles of the battery cell. The clamping iron shaft 8 is provided with a hollow tube for passing through a wire 9, which is used to connect the probe 6 and an external testing device.

[0017] The surface of the clamp 5 is also provided with an anti-slip groove 10 to improve the stability of clamping the battery cell.

[0018] The surface of the clamp 5 is also equipped with a temperature sensor. It can be fixed by the clamp and connected to a temperature sensing wire for convenient testing of the cell's heat dissipation at different temperatures.

[0019] The support member 1 includes a vertical support rod and a circular base 11. The lower end of the support rod is fixed on the circular base 11, and the upper end is fixed with a guide post 2.

[0020] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All modifications made in accordance with the spirit and essence of the main technical solution of this utility model should be included within the scope of protection of this utility model.

Claims

1. A fixture for testing multi-specification battery cells, characterized in that, The device includes a support member, one end of which is vertically fixed with a guide post. Sliding adjustment frames are fitted on both sides of the guide post, and springs are fitted on the guide posts on both sides of each adjustment frame. A clamp is fixed to the end of each adjustment frame, and a test probe is fixed to the clamp.

2. The multi-specification battery cell testing fixture according to claim 1, characterized in that, The adjusting frame and the guide column are fixed together by adjusting bolts.

3. The multi-specification battery cell testing fixture according to claim 2, characterized in that, The clamp is equipped with a clamping iron shaft, and the probe is fixedly installed at one end of the clamping iron shaft. The probes on the two clamps are positioned opposite each other and are used to detect the two poles of the battery cell.

4. The multi-specification battery cell testing fixture according to claim 3, characterized in that, The clamp's iron shaft has a hollow tube for passing through wires, which are used to connect probes and external testing equipment.

5. The multi-specification battery cell testing fixture according to claim 4, characterized in that, The chuck surface is provided with anti-slip grooves.

6. The multi-specification battery cell testing fixture according to claim 4, characterized in that, The chuck surface is also equipped with a temperature sensor.

7. The multi-specification battery cell testing fixture according to claim 1, characterized in that, The support includes a vertical support rod and a circular base. The lower end of the support rod is fixed to the circular base, and the upper end is fixed to a guide post.

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