A method for piercing the lead wire of an aluminum electrolytic capacitor core

Abstract

The invention discloses a method for piercing a lead wire of an aluminum electrolytic capacitor core, which comprises the following steps: (1) welding and fusing all the positive lead wires on the core pack of an aluminum electrolytic capacitor to form a positive connecting wire; (2) welding the aluminum electrolytic capacitor core The negative lead wires on the package are all welded and fused to form the negative connecting wire; (3) Cooperate the Washer with the positive connecting wire and the negative connecting wire respectively, and puncture the washer from the positive connecting wire and the negative connecting wire respectively. The method of the present invention is easy to operate in practical applications; when the lead wire piercing method of the present invention is used to pierce holes, multiple pairs of lead wires can jointly form a large embossed whole, which can effectively prevent the embossing formed when the lead wires are pierced. drop, thereby avoiding the risk of failure of the capacitor due to the falling of the flower; the puncture method of the present invention can effectively reduce the change of the contact resistance of the lead-rivet riveting during and after the use of the capacitor, and is suitable for long-life or large-scale capacitors. Aluminum electrolytic capacitors required for ripple applications.

Description

technical field [0001] The invention relates to the technical field of capacitors, in particular to a method for piercing lead wires in an aluminum electrolytic capacitor core; the method for piercing lead wires in an aluminum electrolytic capacitor core is suitable for piercing holes in multiple pairs of lead wires. Background technique [0002] The manufacturing process of aluminum electrolytic capacitors includes: slitting-riveting-dipping-dipping-assembly-aging test five links, in which the assembly process is composed of three links: thorn riveting-waist sealing-casing, thorn riveting is the guiding line It can be said that the quality of riveting is an important factor in determining the connection between the core package inside the capacitor and the terminal cover. At present, the mainstream riveting method of cover plate and lead wire is mainly cold pressure welding, followed by laser welding and ultrasonic welding. The cold pressure welding of aluminum refers to t...

AI Technical Summary

Problems solved by technology

[0004] For (1) the aluminum electrolytic capacitor core package with a multi-pair lead wire structure will occasionally fall off when the lead wires are pierced, and the falling embellishments are likely to cause ignition and breakdown of the leads and the aluminum foil on the upper edge of the core package. There is a problem of potential failure of the capacitor; (2) The contact resistance of the aluminum electrolytic capacitor is applied in the middle and late stages of the lead-cover rivet riveting, which is not conducive to the application of long life and large ripple environment.

[0005] The present invention provides a method for piercing the lead wire of an aluminum electrolytic capacitor core. The above problems are solved by the piercing method of the present invention. This solves the hidden danger of capacitor failure caused by sporadic turning and falling; (2) solves the problem of the lead-cover rivet riveting contact resistance becoming larger due to the oxidation of the lead wire during use, which affects long life and large ripples application requirements

Images