Abstract: The invention describes an electrical machine comprising a stator and a rotor which is separated from the stator by an air gap and has a plurality of shell-like magnet segments which are fastened to a magnetic return path element. In this case, the magnet segments are arranged opposite one another in pairs in each case and each have a plurality of magnetically differently polarized sections in the circumferential direction, said sections each forming a magnetic pole of the rotor. In this case, recesses which each serve as outer detached pole portions are provided on that side which faces the stator in the edge zones of the magnet segments which are arranged in the circumferential direction. Furthermore, further recesses are provided on that side which faces the stator in the transition zones between the magnetically differently polarized sections of the magnet segments, said recesses serving as inner detached pole portions.

Abstract: The invention describes an electrical machine comprising a stator and a rotor which is separated from the stator by an air gap and has a plurality of shell-like magnet segments which are fastened to a magnetic return path element. In this case, the magnet segments are arranged opposite one another in pairs in each case and each have a plurality of magnetically differently polarized sections in the circumferential direction, said sections each forming a magnetic pole of the rotor. In this case, recesses which each serve as outer detached pole portions are provided on that side which faces the stator in the edge zones of the magnet segments which are arranged in the circumferential direction. Furthermore, further recesses are provided on that side which faces the stator in the transition zones between the magnetically differently polarized sections of the magnet segments, said recesses serving as inner detached pole portions.

Abstract: The invention relates to a method for producing a machine component (1) for an electrical machine, wherein the machine component (1) is formed with a magnetically conductive material, in which one or more magnetically nonconductive separating regions (4) are provided, wherein the separating region (4) is formed by the introduction of austenite-forming material during a melting process of the magnetically conductive material of the machine component (1), such that an austenitic structure is formed in the magnetically conductive material of the machine component (1).

Abstract: The invention relates to a method for producing a machine component (1) for an electrical machine, wherein the machine component (1) is formed with a magnetically conductive material, in which one or more magnetically non-conductive separating regions (4) are provided, wherein the separating region (4) is formed by the introduction of austenite-forming material during a melting process of the magnetically conductive material of the machine component (1), such that an austenitic structure is formed in the magnetically conductive material of the machine component (1).

Abstract: 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.

Abstract: The invention relates to an electric machine, particularly for a synchronous machine excited by a permanent magnet.

Abstract: 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.

Abstract: A main element which can be used as a rotor or stator for an electrical machine has a short-circuit ring and radially protruding teeth formed integrally onto the short-circuit ring, which teeth are offset from one another about circumferential angles. To make it possible to press a main element of relatively great axial length of SMC material with the required high material density, the SMC body is subdivided into a plurality of separately manufactured modules, placed against one another in axially aligned fashion, two each of which modules are embodied identically and on being placed against one another are rotated 180° in the plane defined by the module axes. Each separately pressed module, to achieve the required density, has a high aspect ratio, and for pressing the plurality of modules, only two press molds are required.

Abstract: An electrical machine is described, having a stationary main element as stator and a rotating main element as rotor, of which one main element having a magnetic yoke and poles, of a predefined number of poles, projecting radially from the former, is made of SMC material and carries a pole winding on each pole. To achieve cost-effective manufacturing of the main element, the main element is assembled from at least two modules that are axially adjacent, rigidly connected to one another, and produced from SMC material, each module having a yoke part, closed in on itself, of the magnetic yoke having an equal number of divisions of poles attached thereto in one piece, which corresponds to a fraction of the number of poles determined by the number of modules.

Abstract: The invention relates to a stator for an electric machine, which has a core comprised of laminated sheet metal (1), the pole teeth (2) of each laminated sheet metal (1) of the core being connected to one another via respective webs (3). The laminated metal sheets (1) of the core are made from a two-state steel and, in the area of the pole teeth (2), have a high relative permeability and, in the area of the webs (3), have a section (5, 6, 7) with a low relative permeability.

Abstract: The present invention relates to a rotor for an electric machine, comprising a core made of metal lamellar sheets (1), which are disposed on a motor shaft (2), wherein the metal lamellar sheets (1) of the core are made of a two-state steel and have a low relative permeability in an inner region (3), in which the motor shaft (2) is attached to the metal lamellar sheets (1). Furthermore the invention relates to a production method of such a rotor.

Abstract: The invention is based on an electrical machine having a rotor rotatably mounted about an axis of rotation and a stator. The rotor has at least one permanent magnet. The rotor has alternating field-focusing and field-free regions in its rotor body which are parallel to the axis of rotation.

Abstract: The invention relates to a stator for an electric machine, which has a core comprised of laminated sheet metal (1), the pole teeth (2) of each laminated sheet metal (1) of the core being connected to one another via respective webs (3). The laminated metal sheets (1) of the core are made from a two-state steel and, in the area of the pole teeth (2), have a high relative permeability and, in the area of the webs (3), have a section (5, 6, 7) with a low relative permeability.

Abstract: 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.

Abstract: An electrical machine is described, having a stationary main element as stator and a rotating main element as rotor, of which one main element having a magnetic yoke and poles, of a predefined number of poles, projecting radially from the former, is made of SMC material and carries a pole winding on each pole. To achieve cost-effective manufacturing of the main element, the main element is assembled from at least two modules that are axially adjacent, rigidly connected to one another, and produced from SMC material, each module having a yoke part, closed in on itself, of the magnetic yoke having an equal number of divisions of poles attached thereto in one piece, which corresponds to a fraction of the number of poles determined by the number of modules.

Abstract: An electrical machine, in particular a brushless synchronous motor has a stator (14) and a rotor (12) with salient poles (18) disposed distributed over its circumference, each of which poles has an enclosed permanent magnet (11) and a pole shoe (19) that extends radially outward from the permanent magnet and defines an air gap (13) between the stator (14) and rotor (12). In order to achieve a low cogging torque and a low torque undulation, the pole shoes (19) are embodied as magnetically anisotropic, with a preferred direction of the greater magnetic conductivity extending parallel to the radial salient pole axis.

Abstract: The invention discloses an electrical machine, in particular a brushless synchronous motor that has a stator (14) and a rotor (12) with salient poles (18) disposed distributed over its circumference, each of which poles has an enclosed permanent magnet (11) and a pole shoe (19) that extends radially outward from the permanent magnet and defines an air gap (13) between the stator (14) and rotor (12). In order to achieve a low cogging torque and a low torque undulation, the pole shoes (19) are embodied as magnetically anisotropic, with a preferred direction of the greater magnetic conductivity extending parallel to the radial salient pole axis.