Robert Boschgmbh

Susanne Evans

Juergen Herp

Steven-Andrew Evans

Matthias Henschel

Markus Heidrich

Tilo Koenig

Steven Andrew Evans

Lin Feuerrohr

Markus Peters

Wolf-Joachim Eggers

Helmut Aesche

Harald Bux

Marlene Aesche, Legal Representative

Jens Helmut Aesche, Legal Representative

Heidi Marlene Aesche, Legal Representative

Joachim Van Wijhe

The invention relates to an electric machine excited by a permanent magnet. The electric machine comprises a rotor arrangement having buried permanent magnets and a stator arrangement having an inner recess for rotationally movably receiving the rotor arrangement, the rotor arrangement comprising a plurality of rotor segments, each having a pole shoe, the outer contour thereof corresponding to an arc contour having a contour radius, the contour radius being smaller than the radius of the rotor arrangement, thus forming a gap between two adjacent rotor segments, the at least one outer contour of one of the rotor segments having an arc contour, wherein the dimensions of the contour are optimized with regard to the distortion factor of the course of the flux density distribution of the pole shoe.

Electric machine and rotor arrangement

The present invention relates to an electrical machine including a rotor shaft, a hollow-cylindrical magnet element, a first covering disk, and a second covering disk, in which the first and second covering disks are secured to the rotor shaft, and the magnet element is secured on its first axial end to the first covering disk and on its second axial end to the second covering disk.

Rotor for an electrical machine with improved temperature stability

An electrical machine, in particular a brushless synchronous motor has a stator () and a rotor () with salient poles () disposed distributed over its circumference, each of which poles has an enclosed permanent magnet () and a pole shoe () that extends radially outward from the permanent magnet and defines an air gap () between the stator () and rotor (). In order to achieve a low cogging torque and a low torque undulation, the pole shoes () are embodied as magnetically anisotropic, with a preferred direction of the greater magnetic conductivity extending parallel to the radial salient pole axis.

Electric machine, in particular brushless synchronous motor

An armature of the prior art has a lamination packet which leads to a high loss of magnetic flux in the lamination, since it completely encloses the magnets that are disposed in the lamination. An armature () of the invention comprises at least one lamination () that only partly encloses the magnets (). Losses in the magnetic flux are thus reduced.

Armature with coated laminate bundle

Growing community of inventors

Buehl, Germany

Susanne Evans