Patent · US Active

Brush device for an electric machine, and electric machine

US9231456B2 · kind B2 · utility

0Cited by

4References

19Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Peter Bohr · Karlsruhe, DE
Tarek Mili · Karlsruhe, DE

Key dates

Filing date	Aug 27, 2014
Grant date	Jan 5, 2016
Priority date	—
Expiry date	Aug 27, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH01R39/381
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A brush device (100) for an electric machine (10), having a brush (20) which is arranged in a brush guide element (21; 21a) so as to be longitudinally displaceable in the direction of a contact element (16) and which bears against the contact element (16) by way of a contact surface (30), wherein the brush (20) has a longitudinal axis (25) arranged at a first oblique angle (α) with respect to an axis of rotation (11) of the contact element (16), wherein that face side (23) of the brush (20) which is situated opposite the contact surface (30) is subjected to the spring force (F) of a spring element (32) in an abutment region (31).

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