Patent · US Active

Rolling bearing having an integrated generator and method for the energy management of a rolling bearing of said type

US9328766B2 · kind B2 · utility

0Cited by

5References

4Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Frank Benkert · Waigolshausen, DE
Thomas Rink · Waldfenster, DE

Key dates

Filing date	May 9, 2011
Grant date	May 3, 2016
Priority date	—
Expiry date	Sep 30, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH02K7/1846
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A rolling bearing having a permanently excited first generator (09) which is arranged in an intermediate space between two bearing rings which are rotatable relative to one another, the first generator having a primary part and a secondary part and generating a first generator voltage when it operates, the secondary part has permanent magnets (04) which are arranged with alternating polarity on the circumference of one of the bearing rings at least in sections. The rolling bearing includes a second generator (21), and the first generator voltage serves for the supply of energy to a sensor arrangement and/or actuator arrangement integrated in the bearing, whereas the second generator outputs a voltage signal for position determination and rotational speed measurement. A method for the energy management of a rolling bearing of this type is also provided.

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