Integrated insulation structure for polypropylene film capacitor

Abstract

The invention relates to an integrated insulation structure for a polypropylene film capacitor, and belongs to the technical field of capacitor elements. The integrated insulation structure is composed of an upper insulation structure and a lower insulation structure; the upper insulation structure and the lower insulation structure are assembled to form the integrated insulation structure for thecapacitor; the upper insulation structure comprises a cover plate, an explosion-proof block, copper foil connecting pieces, rivets, reinforced extension columns, insulation bowls and leading-out ends; the copper foil connecting pieces are fixed by being inserted into corresponding bayonets of the explosion-proof block, so that the copper foil connecting pieces and the explosion-proof block are connected integrally to form a capacitor end cover; and the lower insulation structure is a pink cylindrical sleeve which is integrally formed. The production efficiency is greatly improved, and the labor cost for producing the polypropylene film capacitor is reduced; and the production operation is simpler and quicker, all-directional dead-angle-free protection of the core bodies and the lower endsurfaces of elements is realized, and higher safety and reliability are achieved.

Description

technical field [0001] The invention relates to an integrated insulating structure of a capacitor, in particular to an insulating structure applied to a polypropylene film capacitor, and belongs to the technical field of capacitor elements. Background technique [0002] Polypropylene film capacitors have self-healing properties, non-polarity, low loss value, high stability, high reliability, and high safety performance, and are widely used in household appliances such as washing machines, air conditioners, and water pumps. [0003] With the development of the economy, the market demand for polypropylene film capacitors has been increasing day by day in recent years. However, due to the constraints of raw materials, capacitor structures and equipment, its output and performance cannot be greatly improved. In other words, the current polypropylene film capacitors can no longer meet the output and performance demands of these fields. Therefore, it is imperative to improve the ...

AI Technical Summary

Problems solved by technology

However, the combination of the upper positioning sleeve, the lower positioning sleeve and the polyester film as the insulation structure of the capacitor inner core requires manual operation during the actual assembly of the production line, which is time-consuming and laborious, which greatly restricts the production efficiency of polypropylene film capacitors. The cost is also high, which brings great pressure to the development of enterprises

And the insulation structure design used in combination, sometimes due to the negligence of manual operation, there may be dead angles for insulation protection, which has caused great hidden dangers to the safety performance of capacitors

At the same time, due to the colorless and transparent design of the polyester film, there are visual blind spots during assembly, and it is not easy to be found after leakage, which has caused a great hidden danger to the safety performance of the capacitor

Due to the limitations of the above shortcomings, it is temporarily difficult to meet the production and performance requirements of polypropylene film capacitors in the fields of washing machines, air conditioners, water pumps and other household appliances

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