An electric machine includes at least one rotor module. A rotor module includes a rotor hub having a hub body, and a plurality of first protrusions and a plurality of second protrusions. One or more first protrusions include an elongated portion and a head portion. One or more second protrusions include a wedge-shaped profile. The rotor module further includes a magnetic core having a plurality of core members disposed on the rotor hub. A core member of the plurality of core members is disposed such that the head portion of the first protrusion located between the adjacent second protrusions engages with the core member, and each of the one or more second protrusions extends at least partially in a space between adjacent core members of the plurality of core members. Moreover, the rotor module includes a permanent magnet disposed in a space between the adjacent core members.

A laminated core comprising a plurality of lamination sheets made of a soft magnetic alloy is provided. The lamination sheets have a main surface and a thickness d. The main surfaces of the lamination sheets are stacked one on top of another in a direction of stacking. Adjacent lamination sheets are joined to one another by a plurality of substance-to-substance joints, the joints being filler-free and entirely surrounded by the main surfaces of the adjacent lamination sheets.

An electric machine winding assembly including a stator and windings is provided. The stator may define a central axis. The windings may extend from the stator and each may include a pair of conductor ends. Each conductor end may include a minor side and a major side. The windings are arranged with the stator such that each of the major sides are aligned along a circumferential conductor axis relative to the central axis to facilitate welding adjacent conductor ends to one another. Each of the windings may further include two portions defining a U shape. Each of the two portions may include a lower portion, a mid-portion, and an upper portion. One of the mid-portions may include a first bend defining a twist shape to orient the major sides of one of the pair of conductor ends along the circumferential conductor axis.

A steering system for motor vehicles, including a steering actuator which acts on the steered wheels, is electronically controlled based on a steering request and acts on the steered wheels via a steering gear, and an actuator device which transmits reactions to a steering shaft connected to the steering wheel. The steer-by-wire steering system has a holding brake which can be activated electrically and has two positions; a holding position and an open position. The holding brake is configured to block rotation of the steering shaft in the holding position when a predefined rotational angle of the steering shaft is exceeded, and to release rotation of the steering shaft in the open position.

Embodiments involve rotors for axial flux induction rotating electric machines that use a soft magnetic composite for the rotor core. A first embodiment is directed to a rotor for a rotating electrical machine that transmits magnetic flux parallel to a shaft of the rotor. The rotor includes a rotor winding and a plurality of cores. The rotor winding consists of a solid piece of conductive material that comprises a plurality of cavities. Each core is placed in a respective cavity and comprises a highly resistive isotropic ferromagnetic powder.

The present invention may provide a motor including a rotor and a stator disposed to correspond to the rotor, wherein the rotor includes a rotor core and a magnet disposed on the rotor core, a tooth of the stator includes a first surface facing the magnet, the magnet includes a second surface in contact with the rotor core and a third surface which is spaced apart from the second surface and faces the first surface, the third surface includes a flat surface, and a first length which is a shortest distance of the flat surface is in the range of 46% to 50% of a second length of a shortest distance of the first surface.

A hermetic compressor includes an electric motor that includes a rotor having a plurality of permanent magnets inserted into a rotor core, a connection part made of a non-magnetic material and provided at an axial end portion of the rotor core, and an inertial core made of a magnetic material and provided at an axial end of the connection part. The connection part includes a plurality of first fixing portions, a plurality of second fixing portions spaced apart from the plurality of first fixing portions in an axial direction, and a plurality of link portions disposed between the plurality of first fixing portions and the plurality of second fixing portions.

Provided is a stator core formed by laminating electrical steel sheets to steadily curtail iron loss and a motor equipped with the stator core.

A stator core 10 formed by laminating electrical steel sheets 11 having a thickness of from 25 to 80 m steadily curtails iron loss. A motor 20 including the stator core 10 formed by laminating electrical steel sheets 11 having a thickness of from 25 to 80 m has a steadily improved efficiency.

Provided is a stator core formed by laminating electrical steel sheets to steadily curtail iron loss and a motor equipped with the stator core.

A stator core 10 formed by laminating electrical steel sheets 11 having a thickness of from 25 to 80 m steadily curtails iron loss. A motor 20 including the stator core 10 formed by laminating electrical steel sheets 11 having a thickness of from 25 to 80 m has a steadily improved efficiency.

Provided is a stator assembly including: i) a first stator segment, ii) a second stator segment, wherein the first stator segment and the second stator segment being arranged along a circumferential direction of the stator assembly, and wherein the first stator segment and the second stator segment are located adjacent to each other and are separated by a gap. The stator assembly further including: iii) at least one first coil set of a first multi-phase coil system, and iv) at least one second coil set of a second multi-phase coil system, wherein each coil set includes at least one coil for each phase of the respective multi-phase coil system. Each stator segment includes a first busbar arrangement having first busbar elements, and a second busbar arrangement having second busbar elements, each busbar element being assigned to one phase.