Electric motor

US9806588B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Martin Hoffmann · Zwingenberg, DE
• Gerhard Huth · Stuttgart, DE

Key dates

• Filing date: Feb 28, 2012
• Grant date: Oct 31, 2017
• Expiry date: Feb 28, 2032

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02K3/522
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

An electric motor comprising a rotor which has a plurality of permanent magnets arranged along a circumferential direction, a stator arrangement with a winding arrangement which surrounds, at least in parts, the permanent magnets. Said stator arrangement comprises a first stator having a plurality of windings and the stator arrangement comprises a second stator, the windings of the first and second stators being embodied, respectively as frame-shaped coils, said coils of the first stator being arranged in the radial direction on the outside of the permanent magnets, the coils of the second stator being arranged in the radial direction inside the permanent magnets, and the coils are arranged along the winding axis thereof in the radial direction and the permanent magnets are arranged along the magnetization direction thereof in the radial direction.