Equipment and method for testing paper breakdown voltage of electrolytic capacitor

Abstract

The invention relates to the field of testing equipment, in particular to electrolytic capacitor paper breakdown voltage testing equipment and method.The electrolytic capacitor paper breakdown voltage testing equipment comprises a testing table arranged on a rack, the testing table is provided with a pair of testing electrodes including a cathode and an anode which are separated from each other, one testing electrode is arranged on the testing table, and the other testing electrode is arranged on the rack; another test electrode is movably arranged above the test electrode; the test electrode is connected with an electrode controller; the test electrode is also connected with a boosting module, a high-voltage test module and a leakage current measurement module; the electrode control mechanism comprises a driving element arranged on the rack and a transmission head arranged on the driving element; the equipment further comprises a paper feeding mechanism used for driving electrolytic capacitor paper to move, the paper feeding mechanism comprises roller sets located on the left side and the right side of the lower electrode, each roller set comprises a lower roller and an upper roller, and during testing, the electrolytic capacitor paper is clamped between the lower rollers and the upper rollers. Automatic continuous testing is achieved, testing efficiency is improved, and personal safety is guaranteed.

Description

technical field [0001] The invention relates to the field of test equipment, in particular to an electrolytic capacitor paper breakdown voltage test equipment and method. Background technique [0002] Electrolytic capacitor paper is an important material that constitutes a capacitor. After being absorbed by the electrolyte, it serves as a carrier and the electrolyte becomes a cathode, which acts as a foil isolation between the two poles. At present, in the production of electrolytic capacitor paper, impurities are mostly removed by rinsing and purification, but there are still some metal impurities that cannot be removed. At the same time, due to the extremely thin thickness of the product (electrolytic capacitor paper), holes are prone to occur during production, which will cause the loss of the pressure-resistant layer. Due to the lack of metal impurities and the voltage-resistant layer, the electrolytic capacitor paper is easily broken down, resulting in damage to the ca...

AI Technical Summary

Problems solved by technology

[0006] 1: The AC / DC withstand voltage insulation tester needs to rise from 0V to the set high voltage test voltage value within the rising and falling time of the high voltage test voltage. Usually the high voltage test voltage value is set to 5kV. If the experimenter directly touches the electrode before the button stops, high-voltage electric shock casualties will occur

[0007] 2: After long-term test data, it is proved that the weight of the electrode placed by the experimenter will affect the stability and repeatability of the breakdown voltage value

[0008] 3: The existing test device does not restore the real structure of the breakdown of the electrolytic capacitor, and does not use metal cathode foil and metal anode foil as electrodes according to the structure and capacitance principle of the electrolytic capacitor

[0010] 5: If the electrolytic capacitor paper needs to test multiple positions, it is necessary to manually start and stop the test frequently, and to test the next position, it is necessary to manually move the tested paper sample, and the test efficiency is low

[0011] 6: The data of the test results cannot be processed, saved, printed, or transmitted, and the results can only be recorded manually

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