Abstract: A winding pack for a stator assembly of an electric motor, including a coil assembly having twelve coils arranged in three groups, each having four coils of a winding, which are interleaved circumferentially. Each group has two pairs of adjacent coils, between which two pairs of the other groups are positioned. All groups have an identical sequence of their winding direction. Each pair contains both winding directions, the order of which differs between the two pairs. The technical winding start coming from one of the terminal regions in the pair that is first when viewed in the circumferential direction and the technical winding end leading to one of the terminal regions in the second pair of the relevant group are located, in relation to the winding pack, at the end face and on the side of the relevant second coil of the pair facing the first coil of this pair.

Abstract: A winding pack for a stator assembly of an electric motor, including a coil assembly having twelve coils arranged in three groups, each having four coils of a winding, which are interleaved circumferentially. Each group has two pairs of adjacent coils, between which two pairs of the other groups are positioned. All groups have an identical sequence of their winding direction. Each pair contains both winding directions, the order of which differs between the two pairs. The technical winding start coming from one of the terminal regions in the pair that is first when viewed in the circumferential direction and the technical winding end leading to one of the terminal regions in the second pair of the relevant group are located, in relation to the winding pack, at the end face and on the side of the relevant second coil of the pair facing the first coil of this pair.

Abstract: An electric motor includes a printed circuit board, a rotor which is mounted rotatably about an axis of rotation, and a stator circumferentially surrounded by the rotor. The stator includes stator teeth and coils wound around the stator teeth, the coils being made from a winding wire with winding wire ends. The stator is overmolded by an injection molding, and a plug assembly is made on an upper side of the stator by the injection molding. The plug assembly includes contacts overmolded by the injection molding and defining a plug connection of an external power supply connection on one side and making direct electrical contact with the printed circuit board on another side.

Abstract: An electric motor includes a rotor which is mounted rotatably about an axis of rotation and which surrounds a stator on a circumferential side, the stator including stator teeth and coils wound around the stator teeth, the coils being made of a winding wire with winding wire ends, and a printed circuit board. The stator is encapsulated by an injection molding. Receptacles are provided on an upper side of the stator. At least one winding wire end is inserted into the receptacles. An insulation displacement contact is inserted into the receptacles to make electrical contact with the at least one winding wire end. The insulation displacement contact includes a plug-in pin which makes direct electrical contact with the printed circuit board.

Abstract: A rotor assembly includes an annular rotor core surrounding a central axis, magnet arrangements arranged around the rotor core in a circumferential direction of the rotor assembly, each magnet assembly including a convex outer peripheral surface, an inner contact surface, two axial end surfaces and two side surfaces pointing in the radial direction, a magnet holder integrally injection-moulded on the rotor core and including holding sections uniformly spaced in the circumferential direction, each between two adjacent magnet arrangements. The holding sections each include a shaft section and a head section, the shaft section being located circumferentially between the magnet arrangements and the head section being at one end of the shaft section.

Abstract: A rotor unit assembly of a brushless electric motor includes an annular rotor core surrounding a central axis permanent magnets around the rotor core in a circumferential direction of the rotor unit assembly and each including a planar outer contact surface, a planar inner contact surface, two axial end surfaces, and two side surfaces, and magnetic flux conductors. One magnetic flux conductor is respectively provided to one permanent magnet. The magnetic flux conductors each include a convex outer circumferential surface and a planar inner contact surface with the planar inner contact surfaces being in contact with the planar outer contact surfaces of thc corresponding permanent magnets. Each of the magnetic flux conductors is defined by a single unitary structure made of extruded material.

Abstract: An electric motor includes a rotor rotatable about a rotation axis, and a stator that externally surrounds the rotor and includes a stator core and coils wound on the stator core. The windings are defined by a winding wire including winding wire end portions that are electrically contacted at end surfaces thereof by busbars held at least partially in a busbar holder, and include a ground contact to connect the stator to a ground potential. The ground contact includes a first end region received in a longitudinal groove on an outside of the stator core.

Abstract: An integrally molded internal rotor core of a brushless electric motor includes a central bore, and the rotor core is manufactured by a cold extrusion process.

Abstract: A transmission housing assembly includes a transmission housing and a freewheel including an inner ring and an outer ring. The inner ring is non-positively connectable to a motor shaft, and a steel bearing bush is inserted into an opening of the transmission housing, into which the freewheel is pressed in order to press-fit the outer ring with the steel bearing bush and the transmission housing.

Abstract: A transmission housing assembly includes a transmission housing and a freewheel including an inner ring and an outer ring. The inner ring is non-positively connectable to a motor shaft. The transmission housing includes a steel bearing bush overmolded with aluminum, which defines an opening of the transmission housing into which the freewheel is pressed.

Abstract: A method of manufacturing a motor shaft of an electric motor which is part of an actuator providing a rotary actuating movement of an actuator through a transmission, includes providing a cylindrical shaft blank including a second end and a second end portion extending from the second end. An outside diameter of the second end portion is greater than outside diameters of all remaining portions of the shaft. The method further includes forming a toothing into the second end portion, and grinding the toothing to size in a region spaced from the second end to define a bearing seat, an outside diameter of the bearing seat being less than an outside diameter of an engagement region of the toothing between the bearing seat and the second end.

Abstract: A wire holder for a stator of an electric motor includes a main body including a first wall portion and a second wall portion, and a partially annular clamp section which extends over 90° to 210° in a circumferential direction. The second wall portion defines an end surface of the clamp section and projects radially inwards, and includes at least two clamp sockets on the end surface and pointing away from the clamp section in an axial direction. The clamp sockets include at least one slot into which a winding connection wire can be laid.

Abstract: An electric motor includes a rotor rotatable about a rotation axis, and a stator that externally surrounds the rotor and includes a stator core and coils wound on the stator core. The windings are defined by a winding wire including winding wire end portions that are electrically contacted at end surfaces thereof by busbars held at least partially in a busbar holder, and include a ground contact to connect the stator to a ground potential. The ground contact includes a first end region received in a longitudinal groove on an outside of the stator core.