Rotor for an electrical machine and electrical machine for a drivetrain in a motor vehicle

US7952255B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Khalid Jafoui · Hallstadt, DE
• Alexander Schäflein · Ochsenfurt, DE

Key dates

• Filing date: Mar 10, 2009
• Grant date: May 31, 2011
• Expiry date: Apr 28, 2029

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02K7/006
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A rotor and an electrical machine for a motor vehicle drivetrain. The rotor includes a rotor carrier with a radial supporting area, an axial supporting area, which extends axially with respect to the axis of rotation of the rotor and which is connected to the radial supporting area and has an inner or an outer first circumferential surface, and a rotor component which conducts magnetic flux and is arranged at the circumferential surface of the axial supporting area. To achieve a rotationally locking connection between the rotor carrier and the rotor component conducting magnetic flux, it is proposed to form the axial supporting area with a positive engagement profile which extends in axial direction of the rotor for receiving, in a positive engagement, the rotor component conducting magnetic flux.