Precise testing device of safety valve of cylindrical lithium-ion battery
A lithium-ion battery and testing device technology, which is applied in the direction of liquid tightness measurement by using liquid/vacuum degree, and by measuring the increase and deceleration rate of fluid, can solve the problems of low test accuracy, low work efficiency, cumbersome operation, etc., and achieve Reduce manual operations, reduce consumables, and detect stable effects
Inactive Publication Date: 2011-07-20
TAIXING ZHENGXING ELECTRON
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Problems solved by technology
[0005] The purpose of the present invention is to overcome the influence of human factors and equipment sensitivity on test results in the prior art, as well as the shortcomings of multiple performance tests on multiple safety valves, low test accuracy, cumbersome operation, low work efficiency, and many consumables. And provide a cylindrical lithium-ion battery safety valve precision testing device that can complete multiple performance tests on the same safety valve at one time, with high test accuracy, convenient operation, high work efficiency, and less consumables
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[0025] The present invention will be further described below in conjunction with accompanying drawings and embodiments.
[0026] figure 1 As shown, the cylindrical lithium-ion battery safety valve precision testing device mainly includes a pressure seat 1, a base 4, a control system 7, a stabilized air source 9, and an air intake pipe 11. The hollow cavity openings of the pressure seat 1 and the base 4 are respectively provided Gaskets 2, 3, and pressure seat 1 are installed on the side frame of base 4. Pull down or lift the handle along the side frame to compress or separate pressure seat 1 and base 4. The hollow cavities of pressure seat 1 and base 4 are respectively There are elastic contacts 5 and 6, and the two elastic contacts 5 and 6 are respectively connected with the control system 7, and the press seat 1 and the base 4 are pressed against the safety valve to be tested. When the safety valve to be tested is closed, the two elastic contacts 5 and 6 respectively touch ...
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The invention relates to a precise testing device of a safety valve of a cylindrical lithium-ion battery, which comprises a press seat, a base and a control system. An elastic contact is respectively arranged in the cavities of the press seat and the base, the two elastic contacts are both connected with the control system to test the internal resistance and the welding point breaking pressure ofa safety valve; the hollow cavity of the base is communicated with an air intake pipe, a pressure sensor, a solenoid valve, a progressive switch, a pressure gauge and a pressure-stabilizing air source are arranged on the air intake pipe, wherein the pressure sensor, the solenoid valve and the progressive switch are connected with the control system to test the turning pressure and the bursting pressure of the safety valve; and a press sensor connected with the control system is arranged on the elastic contact of the press seat or the base for control. The invention realizes the testing of multiple indicators with one safety valve at one step, achieves convenient, rapid and high-precision testing, avoids the error caused by manual operation and the influence of the equipment sensitivity ontesting, and also has the advantages of small testing error and low material consumption for testing.
Description
technical field [0001] The invention relates to a test device for a battery safety valve, in particular to a multi-performance integrated precision test device for a cylindrical lithium-ion battery safety valve. Background technique [0002] Cylindrical lithium-ion battery safety valve (hereinafter referred to as safety valve) is a control device for battery safety performance of portable electronic products, electric tools, and high-end precision instruments. It is composed of upper cap, throttle valve, explosion-proof membrane, and orifice plate through the seal Combined precision parts, laser welding of orifice plate and explosion-proof membrane, two air holes are set on the orifice plate. During abnormal use, a large amount of gas inside the battery expands rapidly, and the explosion-proof membrane of the safety valve withstands the pressure and bursts to release the pressure. Otherwise, the battery may explode and cause accidental injury. Therefore, the disconnection o...
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IPC IPC(8): G01M3/28
Inventor 朱剑
Owner TAIXING ZHENGXING ELECTRON
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