Electric drive, especially for motor vehicles

US6831381B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Eckhard Ursel · Laufenburg (Baden), DE
• Bruno Droll · Bühl, DE
• Walter Haussecker · Bühl, DE
• Martin Karl · Sasbachwalden, DE
• Wolfgang Thomar · Friedrichstadt, DE
• Stefan Freund · Gaggenau, DE
• Thomas Huck · Bühl, DE

Key dates

• Filing date: Jan 24, 2002
• Grant date: Dec 14, 2004
• Expiry date: May 27, 2022

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H1/16
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

In an electrical drive mechanism, in particular for motor vehicles, having a commutator motor (14) disposed in a housing (10), which commutator motor (14) has a rotor shaft (17) with a commutator (22) non-rotatably supported on it and has a brush holder (30) affixed to the housing (10), and having a bearing (25) disposed in the vicinity of the commutator (22), which bearing has a bearing bush (34) that encloses the rotor shaft (17) with rotary play and a bearing seat (35) that contains the bearing bush (34), in order to achieve a simple embodiment for the bearing (25), a clamping member (37) is formed onto the brush holder (30) of one piece with it, which clamps the bearing bush (34) in a frictionally engaged, axial fashion in the bearing seat (35) formed in the housing (10) (FIG. 1).