Method and structure for connecting aluminum alloy automobile cable with copper terminal

Abstract

The invention discloses a method for connecting an aluminum alloy automobile cable with a copper terminal, comprising the following steps of (1) extracting an aluminum alloy conductor from an aluminumalloy automobile cable, and then ultrasonically soldering the aluminum alloy conductor to the copper terminal; (2) coating the surface of the aluminum alloy conductor at the soldering position with ahigh-temperature-resistant and corrosion-resistant sealant layer and solidifying the sealant layer; (3) wrapping a thermoplastic sleeve around the sealant layer, the aluminum alloy conductor, the copper terminal at the soldering position, and the aluminum alloy automobile cable outer sheath by thermal shrinkage. The invention also discloses a structure for connecting an aluminum alloy automobilecable with a copper terminal. The structure is less likely to corrode and has a long service life.

Description

technical field [0001] The invention relates to the technical field of connection between cables and terminals, in particular to a connection method and structure between an aluminum alloy automobile cable and a copper terminal. Background technique [0002] With the continuous improvement of people's requirements for the economy of automobiles, the types of electronic products on automobiles are also increasing, and the number and complexity of automobile wiring harnesses are increasing. From the perspective of new energy vehicles, lightweight design is a means to ensure the economy of vehicles. [0003] At present, the lightweight design adopted in the automotive wiring harness mainly uses aluminum metal conductors to replace copper conductors. Since the connection of dissimilar metals is prone to electrochemical corrosion, the current main solution is to use copper-aluminum transition terminals for connection. The copper-aluminum transition terminal is a combination of a...

Images