Bulging test equipment for aluminum electrolytic capacitor

Abstract

The invention discloses an aluminum electrolytic capacitor bump test device, and belongs to the technical field of capacitor production, the aluminum electrolytic capacitor bump test device can carry out power-on test on a capacitor, the capacitor generates temperature when current is large, then the capacitor is expanded due to electrolyte liquefaction to generate a bump condition, and when the capacitor has a bump phenomenon, the capacitor is not damaged. The bump area extrudes the collision original column, the collision original column extrudes early warning liquid in the liquid injection barrel to enter the inner liquid filling bag to be expanded, the variable magnetic cover expands under the expansion effect of the inner liquid filling bag, the penetrating magnetic field is enhanced, on one hand, the variable magnetic cover reacts on the collision original column to mark the bump area, and on the other hand, the collision area is marked; and on the other hand, the expanded variable magnetic cover performs early warning and is recorded by the camera, and compared with existing testing equipment, the device can detect the bulging condition of the capacitor under the current effect and perform early warning and marking in time, so that the use safety of the capacitor is improved.

Description

Technical field [0001] The invention involves the field of capacitor production technology, and more specifically, it involves a type of aluminum electrolytic capacitor drum testing equipment. Background technique [0002] Two of the conductors close to each other, a layer of non -conductive insulating medium is clamped in the middle, which constitutes a capacitor. When the two polar plates of the capacitor are added with a voltage, the capacitor is stored in charge. The capacity of the capacitor is equal to the amount of charge on the electrode plate from the voltage between the two polar plates. The basic unit of capacitors of capacitors is Fara (F). In the circuit diagram, letters C generally use the capacitor element. [0003] The aluminum electrolytic capacitance is made of an aluminum cylinder, which is equipped with liquid electrolytes, and a curved aluminum belt is inserted as a positive electrode. It is also needed to be treated with a DC voltage to form a layer of oxide...

AI Technical Summary

Problems solved by technology

[0004] At present, most capacitors need to undergo aging tests before leaving the factory to detect capacitor performance. There are few tests for capacitor bulges, and the main reason for capacitor bulges is that the temperature in the power supply is too high, exceeding the temperature of the capacitor. It is a liquid electrolytic capacitor. At high temperature, the liquid in the capacitor vaporizes, which increases the pressure on the capacitor shell, resulting in bulging. Once the bulge occurs in the capacitor, it will affect the use of the capacitor itself, and even have certain safety hazards. Therefore, Necessary for bulge testing of capacitors

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