High-strength metallized film capacitor

Abstract

A high-strength metallized film capacitor comprises a mounting mechanism, the mounting mechanism comprises a box body and a contact piece, pins are electrically assembled and connected to the side surface of the box body, contact pieces distributed in a rectangular array are arranged at the bottom of the box body, each contact piece comprises a metal separation blade and a filler cavity, each metal separation blade is of a hollow annular structure, and the bottom surface of each metal separation blade is attached to and electrically contacts with the corresponding metal plating layer; an inner hollow area of the metal separation blade includes the filler cavity, the filler cavity is filled with a conductive material, and the conductive material is used for fixing the mounting mechanism and the metallized film into a whole; and the pins, the conductive material, the metal separation blade and the metal coating are electrically connected. According to the invention, the box body, the pins, the metal separation blade and the metallized film can be connected into a whole by the conductive material in a molten state, the fixing process is simpler and more convenient, and as the contact pieces are distributed in a rectangular array, the fixing surface can cover each position, and the connecting strength is higher.

Description

technical field [0001] The invention belongs to the technical field of processing metallized film capacitors, in particular to high-strength metallized film capacitors. Background technique [0002] Metallized film capacitors are capacitors made of organic plastic film as the medium, metallized film as the electrode, and made by winding (except for the laminated structure). The films used in metallized film capacitors include polyethylene, polyester Acrylic, polycarbonate, etc., in addition to the winding type, there are also laminated types; among them, polyester film media and polypropylene film media are the most widely used; [0003] During the production of metallized film capacitors, it is necessary to fix the ends of the metallized film and the pins together, but the current mainstream fixing method is welding, and the welding places are only distributed on the outer periphery of the connection area, resulting in low internal connection strength. The bonding effect i...

AI Technical Summary

Problems solved by technology

[0003] During the production of metallized film capacitors, it is necessary to fix the ends of the metallized film and the pins together, but the current mainstream fixing method is welding, and the welding places are only distributed on the outer periphery of the connection area, resulting in low internal connection strength. The bonding effect is not good enough; and because the bonding strength is not high, the connection surface between the pin and the metallized film will also decrease, resulting in an increase in the contact resistance at the connection, which affects the stable use of the capacitor

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