Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Wuerzburg

Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Wūrzburg

Jacek Junak

Grzegorz Ombach

Horst Steegmueller

Ansgar Ackva

The present invention relates to an electric machine, in particular a brushless permanent magnet motor, provided with a rotor and a stator which has a plurality of teeth with winding phases provided thereon, wherein each winding phase has at least four windings, wherein, of the at least four windings of a winding phase, in each case two windings are connected in series with one another, and wherein these windings which are connected in series are connected in parallel. The present invention also relates to a steering device.

Electric machine and steering device

A brushless synchronous motor includes a rotor having a number n of embedded permanent magnets and being rotatable relative to a stator having a number of stator teeth provided with a three-phase stator winding, while forming an air gap. An angle between two adjacent permanent magnets is 360&#xb0;/n where n&#x3e;8, an angle between two adjacent stator teeth is 360&#xb0;/n+2, and an inner contour of the stator facing the rotor has a curved structure with curvature valleys provided at ends of the stator teeth.

Brushless synchronous motor having a periodically varying air gap

The present invention relates to a permanent-magnet synchronous motor, particularly an electric three-phase motor, comprising a stator having a stator yoke in which stator teeth with interposed stator grooves are arranged, wherein on each stator tooth at least one winding is provided, further comprising a rotor having permanent magnets, wherein the stator teeth are arranged in layers as disks in the axial direction of the stator and designed at least as two different disks, wherein the stator teeth in a first disk are connected peripherally among each other at the ends thereof pointing toward the rotor in the form of a stator star by a connecting bridge and in a second disk have an interruption instead of the connecting bridge. The present invention further relates to an electric power-assisted steering system.

Permanent-magnet synchronous motor and electric power-assisted steering system

An electric motor () has a stator (), a rotor () and a number of permanent magnets (). The use of permanent magnets () having a cuboidal shape, without impairing performance. The stator () has a number of permanent magnets () having a cuboidal shape, which are embedded in recesses () and whose axial length () is greater than the axial length () of the stator ().

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Hoechberg, Germany

Jacek Junak