A high-efficient magnetic rotating apparatus and motor generator are provided which are capable of further reducing a detent torque. The magnetic rotating apparatus and the motor generator each includes a stator in which cores with a winding are disposed and a rotor in which permanent magnets are disposed. The permanent magnet has a magnetic pole of an N-pole or an S-pole and has a counter face, opposed to the core, with an inclination angle. In each set of magnet bodies, the two permanent magnets are so disposed that two counter faces have different magnetic poles and are inclined reversely. The two permanent magnets are magnetically connected through a joint member made of a magnetic material so that the two counter faces act as magnetic poles on both ends of the magnet body.

A rotary reciprocating drive actuator includes an assembled magnetic member has a rectangular shape surrounding the movable member in a plane orthogonal to the axis direction, the core extends in the X direction along one edge of the rectangular shape, and the pair of core parts respectively extend in the Y direction along a pair of opposing edges of the rectangular shape that are different from the one edge, the assembled magnetic member including the pair of magnetic poles, the pair of core parts around which the pair of coils are respectively wound, and the core at which the rotation angle position holding part is disposed, and winding axes of the pair of coils extend along the Y direction.

A brushless motor has a stator assembly. and a frame within which the stator assembly is housed. The frame is overmoulded to the stator assembly; and the frame includes a plurality of turbulators.

A thin axial gap motor includes: a base, a circuit unit installed on the base; a stator module including at least one flat permeable frame and at least one winding, and the permeable frame having at least one support arm and an induced magnetic part connected to the at least one support arm, and the winding being wound around the support arm; a rotor module including a flat permanent magnet installed at the top of the induced magnetic parts and having an orthographic projection range corresponsive to the area of the induced magnetic part, and the at least one winding being disposed on an outer side of the permanent magnet; and a pivoting element installed between the base and the rotor module and including a bearing housing and a spindle plugged into the bearing housing for rotating the rotor module with respect to the base.

An electromagnetic unit configured for being employed in a stator of an electric machine. The electromagnetic unit is constituted by a unitary solid body, and comprises a neck portion constituted by two end extensions sufficiently spaced apart for receiving therein a portion of a driven component of the electrical machine. The end extensions define therebetween a symmetry axis. The electromagnetic unit further comprises a frame extending from the end extensions and lying on the same or parallel plane as that of the end extensions. The frame has a first frame portion extending to one side of the symmetry axis to an extent W1, and a second frame portion extending to the other side of the symmetry axis to an extent W2<W1. W1, W2 are measured perpendicular to the symmetry axis, and wherein at least the first frame portion is configured for receiving therein a coil of the electrical machine.

A motor including a stator includes a first stator core, and a second stator core that is independent from the first stator core and that is symmetric to the first stator core with respect to a vertical line that passes through a center of the stator. Each of the first and second stator cores includes a yoke, a center tooth that extends from a center of the yoke toward the center of the stator, and outer teeth that extend from a first end of the yoke and a second end of the yoke, respectively. The center tooth is located between the outer teeth, and a length of the outer teeth is greater than a length of the center tooth.

A transverse flux reciprocating motor and a reciprocating compressor including a transverse flux reciprocating motor are provided. The transverse flux reciprocating motor may include a stator having an inner stator and an outer stator located outside and spaced apart from the inner stator in a radial direction, at least one magnet coil wound on the stator, at least one magnet coupled to an outer circumferential surface of the inner stator or an inner circumferential surface of the outer stator and having different magnetic poles arranged in an orthogonal direction of flux generated by the magnet coil, and a mover inserted into a cavity formed between the inner stator and the outer stator, formed of a magnetic material and reciprocating with respect to the stator. A magnetic resonant spring for causing resonant motion of the mover with respect to the stator using a force moving to low magnetic resistance between the stator and the mover is implemented, thereby reducing a size and weight of the reciprocating motor and the reciprocating compressor including the reciprocating motor and obtaining higher efficiency.

A stator module pack for an axial flux electric machine includes a housing for attachment to a stator base, a plurality of stator modules attached to the housing, and a drive unit attached to the housing. Each stator module includes a core having at least one winding disposed thereon. The drive unit is electrically connected to at least one stator module. A plurality of stator module packs and a plurality of drive units are coupled to the stator base to form a stator of the axial flux electric machine.

A rotor module for an axial flux electric machine includes a back iron segment configured for attachment to a rotor base and a plurality of permanent magnets attached to the back iron segment. The back iron segment has a length less than a circumference of the rotor base. Each permanent magnet attached to the back iron segment has an opposite magnetic pole orientation from each adjacent permanent magnet attached to the back iron segment. A plurality of rotor modules is coupled to the rotor base to form a rotor for the axial flux electric machine.

An actuator includes a yoke extending about a rotation axis. A coil is wrapped about the yoke. A rotor having a direct axis and a quadrature axis is supported for rotation about a rotation axis relative to the yoke. The rotor has a reluctance along the direct axis that is different than a reluctance along the quadrature axis to rotate the rotor when current is applied to the coil.