Patent · US Active

Slip ring, slip ring unit, electric machine, and wind turbine

US11799257B2 · kind B2 · utility

0Cited by

2References

20Claims

0Family size

Assignee

Flender GmbH · DE

Inventors

Herbert Binder · Hagebök, DE
Robert Gruber · Regensburg, DE
Oliver Memminger · Passau, DE
Roman Svach · Luhačovice, CZ

Key dates

Filing date	Jul 17, 2019
Grant date	Oct 24, 2023
Priority date	—
Expiry date	Mar 14, 2040

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/72
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A slip ring, in particular for use in a wind turbine, includes an axle extending in an axial direction and a contact region having a contact surface on a peripheral surface of the contact region and a recess extending in a tangential circumferential direction along the peripheral surface. The contact region includes an axial end face formed with an opening which communicates with the recess. The contact region includes three essentially cylindrical segments which define two covering segments and an intermediate segment arranged in a center between the two covering segment. Each of the two covering segments defines a radius which is larger than a radius of the intermediate segment so that a peripheral surface of the intermediate segment forms an underside of the recess. An insulating region is arranged adjacent to the contact region on the axle.

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