Drive unit for a motor vehicle with an electric machine

US8604654B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Alexander Markow · Schweinfurt, DE
• Manfred Zimmer · Frankfurt am Main, DE

Key dates

• Filing date: Mar 16, 2011
• Grant date: Dec 10, 2013
• Expiry date: May 28, 2031

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60K6/26
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A drive unit for a motor vehicle having an electric machine including a rotor mounted so as to be rotatable around an axis A and coupleable, with a driveshaft acting on the vehicle wheels, and a stator having an electric winding whose terminations are connected to a power source by a connection device arranged at a housing opening of the drive unit and guided through this opening. A housing element encloses the rotor and the stator on the radially outer side. To arrange the connection device such that the installation space is optimized, the winding terminations are connected to first contact elements arranged fixed in position at the stator constructed as axial connectors with respect to the electric machine, and constitute stator contacts. These first contact elements are connected to second contact elements constructed to correspond to the first contact elements arranged at a wall area of the drive unit, and constitute wall contacts. The wall contacts are electrically connected to the connection device or form this connection device.