锂电池短路测试机构

Abstract

本实用新型属于电池测试领域，具体涉及一种锂电池短路测试机构，包括两块对应设置的竖直支撑板、设置在所述的竖直支撑板之间的上下设置的探针测试单元、电池夹紧单元和电池输送单元；所述的探针测试单元包括气缸、与所述的气缸的输出端连接的底板、与所述的底板连接的探针治具以及与探针治具连接的探针。本实用新型的方型锂电池短路测试机构在提高测试效率、降低设备成本、保证测试、简化换型过程、提高生产效率等方面，相比于现有技术有显著的优越性。

Claims

1. A short circuit test mechanism for a lithium battery, characterized by, It includes two corresponding vertical support plates, a probe testing unit, a battery clamping unit, and a battery conveying unit arranged vertically between the vertical support plates; the probe testing unit includes a cylinder, a base plate connected to the output end of the cylinder, a probe fixture connected to the base plate, and a probe connected to the probe fixture.

2. The lithium battery short circuit test mechanism of claim 1, wherein, A cover plate is provided on the upper side of the base plate; a vertical straight optical axis is provided between the cover plate and the base plate; the two sides of the cover plate are connected to the vertical support plate.

3. The lithium battery short circuit test mechanism of claim 2, wherein, The cylinder is positioned above the cover plate; the piston rod at the output end of the cylinder is sequentially connected to the base and the bottom plate via a Y-type connector.

4. The lithium battery short circuit test mechanism of claim 1, wherein, The probe fixture is H-shaped and is connected to the guide connecting plate of the base plate by a vertical setting to form a clearance fit; the guide connecting plate is provided with a trapezoidal slide rail; the probe fixture is provided with a corresponding trapezoidal groove; and the probe fixture is provided with a set screw mounting hole. The base plate is connected to the vertical support with clearance on both sides; the base plate is provided with a protrusion, and the vertical support plate is provided with a corresponding sliding groove; the vertical support plate is provided with a plurality of positioning pin mounting holes in the vertical direction for connection with the base plate.

5. The lithium battery short circuit test mechanism of claim 1, wherein, The probe fixture has a probe groove; the probe fixing block is disposed in the probe groove; the outer surface of the probe is provided with threads; nuts matching the threads are provided on the upper and lower sides of the fixing block; and a flexible part is provided on the top of the probe.

6. The lithium battery short circuit test mechanism of claim 1, wherein, The battery clamping unit includes a servo motor, a left-hand and right-hand ball screw connected to the servo motor, an intermediate fixed plate disposed between the vertical support plates, and multiple movable clamping plates disposed on both sides of the intermediate fixed plate; the left-hand and right-hand ball screw connects the intermediate fixed plate and the movable clamping plates; the left-hand and right-hand ball screw is provided with two ball screw nuts that are respectively connected to the outermost movable clamping plate.

7. The lithium battery short circuit testing mechanism of claim 6, wherein, The movable clamping plate is equipped with a square pressure sensor to test the pressure after the battery is clamped; the intermediate fixing plate and / or the movable clamping plate are equipped with a removable pad; the intermediate fixing plate and the movable clamping plate are equipped with a horizontal linear optical axis.

8. The lithium battery short circuit test mechanism of claim 6, wherein, The movable clamping plate between the middle fixed plate and the outermost movable clamping plate is connected to a tension spring; both ends of the tension spring are respectively connected to the transverse fixed plate and the movable clamping plate via tension spring support columns; the transverse fixed plate is located below the base plate.

9. The lithium battery short circuit test mechanism of claim 1, wherein, The battery conveying unit includes a support, a speed-regulating motor mounted on the support, a drive roller and a driven roller mounted at both ends of the support, and a conveyor belt connecting the drive roller and the driven roller; the speed-regulating motor is connected to the drive roller.

10. The lithium battery short circuit testing mechanism of claim 9, wherein, The support includes a base, two logistics lines disposed on the base, a support plate disposed between the logistics lines and parallel to the logistics lines, and a support shaft disposed between the support plates; the support shaft is disposed between the support plates.

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