Method for winding core cladding of ripple current-resisting electrolytic capacitor and electrolytic capacitor thereof

Abstract

The invention relates to a method for winding a core cladding of a ripple current-resisting electrolytic capacitor and an electrolytic capacitor thereof, wherein the method comprises that the core cladding is formed by winding two layers of anode foils, two layers of cathode foils and four layers of electrolytic paper layers and the stacked order is one layer of anode foil, one layer of electrolytic paper, one layer of cathode foil, one layer of electrolytic paper, one layer of anode foil, one layer of electrolytic paper, one layer of cathode foil and one layer of electrolytic paper; during the winding process, eight raw material discs are used to perform the constant tension control on each layer of anode foils and cathode foils and each layer of electrolytic paper layers; with the whole machine, four sets of cold pressing dies are synchronously used to rivet lead bars to the four layers of electrode foils, thus making sure that two pairs of lead bars are positioned accurately without error on the completion of winding the core cladding; and during the winding process, each of the raw material discs can automatically carry out deviation rectification control. The electrolytic capacitor of the invention is an electrolytic capacitor provided with the core cladding winded by the above method. By adopting the method provided herein, the equivalent series resistance of a counter electrode is reduced, thus improving the ability of the product to resist ripple current; and the core cladding winding method provided herein not only improves the production speed, but also enhance the bearing capacity of the product to large current charging and discharging.

Description

technical field [0001] The invention belongs to the technical field of electrolytic capacitors, in particular to a core-wrapped winding method of an electrolytic capacitor with resistance to ripple current and the electrolytic capacitor. Background technique [0002] With the development of switching power supplies, frequency converters, and servo motor electronic equipment, aluminum electrolytic capacitors will face harsher operating environments, especially the impact of high-frequency pulsating currents and the increase in operating temperature of capacitors, making ripple currents gradually become a problem for aluminum electrolytic capacitors. Important performance parameters of capacitors. Factors that affect the ripple current resistance of aluminum electrolytic capacitors include the selection of raw materials, anode foil, electrolyte, electrolytic paper and the design of the core structure. The traditional electrolytic capacitor core is made of a layer of anode foi...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a core-wrapped winding method of an electrolytic capacitor capable of resisting ripple current and the capacitor thereof, so as to solve the problem that the capacitor produced by the traditional core-wrapped winding method has poor ripple current resistance and the core-wrapped The problem of long winding and slow production speed

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