An electric motor including a motor rotor and a motor stator including a stator core including a plurality of stator teeth spaced along a circumferential direction of the stator core, a plurality of coil groups, wherein each of the plurality of coil groups includes a plurality of coils wound on a corresponding stator tooth, and an incoming line terminal and an outgoing terminal both comprising a same number of coil ends, and two motor lead groups, wherein a number of the plurality of motor leads of each of the two motor lead groups is equal to a number of the plurality of coil groups, and wherein each of the plurality of motor leads is connected to one incoming line terminal or one outgoing line terminal of one corresponding coil group of the plurality of coil groups.

A rotor for a rotating electrical machine includes a rotor core body that includes a bridge through which a first inner surface is connected to a second inner surface of an innermost flux barrier when the rotor core body is viewed in an axial direction of a rotor core. The innermost flux barrier has an outer-side closed space that is a defined space and is formed between the bridge and an outer periphery of the rotor core body. The outer diameter closed space is filled, in the axial direction of the rotor core body, with a reinforcing part that is made of a non-magnetic material.

A rotor for a rotating electrical machine includes a rotor core body that includes a bridge through which a first inner surface is connected to a second inner surface of an innermost flux barrier when the rotor core body is viewed in an axial direction of a rotor core. The innermost flux barrier has an outer-side closed space that is a defined space and is formed between the bridge and an outer periphery of the rotor core body. The outer diameter closed space is filled, in the axial direction of the rotor core body, with a reinforcing part that is made of a non-magnetic material.

A flux machine includes a stator and a rotor. A set of electrical coil assemblies with side surfaces and sets of plural permanent magnets are arranged circularly on the stator and the rotor. Pole faces of the magnets are positioned adjacent to and spaced apart from side surfaces of permeable cores of the coil assemblies. In each coil assembly a pair of like pole faces of the magnets mutually face across the permeable core and a third magnet pole face faces transversely relative to the mutually facing pole faces of the pair of magnets.

A vehicle electric motor including: a tubular-shaped stator core constituted by electromagnetic steel sheets that are laminated on each other; a rotor disposed inside the stator core so as to be rotated about an axis; and a housing storing therein the tubular-shaped stator core and the rotor, and including a circumferential wall and axially opposite end walls that are opposed to each other in a direction parallel with the axis. The stator core is fixed at one of its axially end portions to one of the axially opposite end walls of the housing. The housing includes a stator-core-inclination restraining portion that protrudes from an inner circumferential surface of the circumferential wall of the housing toward a part of an outer circumferential surface of the stator core, wherein the part is located on a side of the other of the axially end portions of the stator core.

A vehicle electric motor including: a tubular-shaped stator core constituted by electromagnetic steel sheets that are laminated on each other; a rotor disposed inside the stator core so as to be rotated about an axis; and a housing storing therein the tubular-shaped stator core and the rotor, and including a circumferential wall and axially opposite end walls that are opposed to each other in a direction parallel with the axis. The stator core is fixed at one of its axially end portions to one of the axially opposite end walls of the housing. The housing includes a stator-core-inclination restraining portion that protrudes from an inner circumferential surface of the circumferential wall of the housing toward a part of an outer circumferential surface of the stator core, wherein the part is located on a side of the other of the axially end portions of the stator core.

This is a novel magnetic configuration that is to be used to build extra efficient PM motors. This magnetic configuration uses mono polarities of permanent magnet as field-poles instead of dipolar field-poles configuration. Armature teeth are built, energized and used very differently in this magnetic configuration. This configuration revitalizes repulsive force three times inside a running PM motor without using more than usual current. Revitalized repulsive force allows using very strong permanent magnets, which produces heavy attractive force in the same running motor. The revitalized repulsive force along with the heavy attractive force produces extra output power in the motor at no-cost. This magnetic configuration is self-sufficient and unparalleled. It could only be implanted in new designs of PM motors. This magnetic configuration has been built around new experimental findings. The functions of three newly invented electrical machines including a fully-functional prototype validate this magnetic configuration.

Examples include an actuator that includes a rotor that includes a permanent magnet; a stator that at least partially surrounds the rotor; a plurality of electromagnets coupled to the stator that are configured to apply magnetic force to the permanent magnet to rotate the rotor; a first lock that (i) has a first mechanical bias to engage the rotor and prevent rotation of the rotor when the rotor is in a home position and (ii) is configured to disengage the rotor against the first mechanical bias while receiving a first control signal; and a second lock that (i) has a second mechanical bias to disengage the rotor and (ii) is configured to engage the rotor against the second mechanical bias to prevent rotation of the rotor while receiving a second control signal.

Examples include an actuator that includes a rotor that includes a permanent magnet; a stator that at least partially surrounds the rotor; a plurality of electromagnets coupled to the stator that are configured to apply magnetic force to the permanent magnet to rotate the rotor; a first lock that (i) has a first mechanical bias to engage the rotor and prevent rotation of the rotor when the rotor is in a home position and (ii) is configured to disengage the rotor against the first mechanical bias while receiving a first control signal; and a second lock that (i) has a second mechanical bias to disengage the rotor and (ii) is configured to engage the rotor against the second mechanical bias to prevent rotation of the rotor while receiving a second control signal.

A brushless motor is at least partially located in a hermetically sealed space. An electric work machine includes a brushless motor, an output unit, a motor case, a lead wire, and a first seal. The brushless motor includes a stator, a rotor rotatable with respect to the stator, and a rotor shaft fixed to the rotor. The output unit is drivable by the rotor shaft. The motor case includes an internal space and a wiring passage. The internal space accommodates the stator and the rotor. The lead wire is located in the wiring passage connecting the internal space and an external space of the motor case. The first seal seals between the lead wire and the motor case.