Method for manufacturing an electrical contact part

Patent metadata

Field	Value
Publication number	US-11817663-B2
Application number	US-202117909961-A
Country	US
Kind code	B2
Filing date	Jan 31, 2021
Priority date	Mar 12, 2020
Publication date	Nov 14, 2023
Grant date	Nov 14, 2023

Abstract

An electrical contact part comprising, a carrier substrate of a metallic material, a metallic coating applied to the carrier substrate, and a coating barrier material applied to the carrier substrate in a partial area of the carrier substrate, wherein the coating barrier material substantially prevents coating of the carrier substrate in the portion.

First claim

What is claimed is:

1. Method of manufacturing an electrical connection comprising:
providing a carrier substrate of a metallic material, wherein the carrier substrate has at least a first and a second surface and wherein the first surface and the second surface are located on opposing sides of the carrier substrate;
applying a coating comprising an electrically non-conductive barrier material on the first surface of the carrier substrate such that the coating barrier material covers only a partial area of the first surface;
coating the carrier substrate on the first surface and the second surface with a metallic coating material, wherein the coating barrier material substantially prevents coating of said carrier substrate with said applied metallic coating material in said partial area;
placing the carrier substrate with the partial area onto an anvil or a sonotrode of an ultrasonic welding tool, such that a relief-shaped surface of the anvil or the sonotrode abut the coating barrier material within said partial area; and
materially bonding, with the ultrasonic welding tool, an electrical conductor to the second surface coated with the metallic coating material, the second surface facing away from the first surface.

2. Method according to claim 1 , wherein the carrier substrate is coated in a connection area with a material which is thinner than the carrier substrate or wherein the carrier substrate is coated in a connection area with a sheet metal, strap or foil which is thinner than the carrier substrate, wherein the partial area lies within the connection area, and
that the carrier substrate and parts of the connection area are coated with the metallic coating material.

3. Method according to claim 1 , further comprising removing the coating barrier material after the metallic coating or removing the coating barrier material after the metallic coating by evaporation, or removing the coating barrier material after the metallic coating by evaporation using a radiation source.

4. Method according to claim 1 , wherein after the metallic coating, a contact part cut or punched out of the carrier substrate.

5. Method according to claim 1 , wherein the coating barrier material is continuously applied to the carrier material via a nozzle.

6. Method according to claim 1 , wherein the coating barrier material is applied to the substrate in liquid or paste form.

7. Method according to claim 1 , wherein applying a metallic coating material comprises wet-chemically metallically coating, or wherein applying a metallic coating material comprises electroplating the carrier substrate.

Assignees

• Auto Kabel Man Gmbh

Inventors

• Scharkowski Oliver
• Redder Marie

Classifications

• H01R4/029 Primary

  Welded connections (H01R4/021 - H01R4/028 take precedence) · CPC title

• H01B1/02

  mainly consisting of metals or alloys · CPC title

• H01R4/58

  characterised by the form or material of the contacting members (H01R4/01 takes precedence) · CPC title

• H01R43/0207

  Ultrasonic-, H.F.-, cold- or impact welding · CPC title

• C23C28/00 Primary

  Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D · CPC title