Patent · US Active

Method for joining copper hairpins and stator

US12142976B2 · kind B2 · utility

0Cited by

5References

18Claims

0Family size

Assignee

TRUMPF LASER- UND SYSTEMTECHNIK GMBH · DE

Inventors

Tim Hesse · Ditzingen, DE
Oliver Bocksrocker · Sachsenheim, DE

Key dates

Filing date	Feb 11, 2020
Grant date	Nov 12, 2024
Priority date	—
Expiry date	Dec 19, 2041

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23K2103/12
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A method for joining copper hairpins includes providing at least two ends to be joined to one another of the copper hairpins, and joining the copper hairpins. The copper hairpins are joined by laser beam welding with a machining beam having a wavelength of less than 1000 nm.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.