Abstract: There is provided an electronic motor in which a stator core is thinned to obtain an increased diameter of a rotor is to produce a high power output, and a stator can be positioned with high accuracy at the time when a coil is wound on the stator. The outside peripheral surface of a yoke part 31 is substantially the same as the outside peripheral surface of a flange 42 of an insulator 4, and in a part of the flange 42, a cut-away part 43 is provided to expose a part of the end face of a stator core 30.

Abstract: There is provided an electronic motor in which a stator core is thinned to obtain an increased diameter of a rotor is to produce a high power output, and a stator can be positioned with high accuracy at the time when a coil is wound on the stator. The outside peripheral surface of a yoke part 31 is substantially the same as the outside peripheral surface of a flange 42 of an insulator 4, and in a part of the flange 42, a cut-away part 43 is provided to expose a part of the end face of a stator core 30.

Abstract: There is provided a permanent magnet motor capable of reducing cogging torque and torque ripple while suppressing a decrease in motor output. In a permanent magnet motor 1 including a rotor 3 in which a plurality of permanent magnets 5 are arranged in a ring shape as a magnetic field unit, the transverse cross section of the permanent magnet 5 has an inside periphery 51 formed by a first arc 511 having the center of curvature O1 and the radius of curvature R1, and an outside periphery 52 formed by a second arc 521 having the center of curvature O2 and the radius of curvature R2, a third arc 522 having the center of curvature O3 and the radius of curvature R3 and joined to one end of the second arc 521, and a fourth arc 523 having the center of curvature O4 and the radius of curvature R4 and joined to the other end of the second arc 521. The above-described centers of curvature are disposed at different positions.

Abstract: A radial-air-gap induction motor is constituted so as to have two air gaps by setting a rotor between a cylindrical outer stator and inner stator in order to improve an efficiency by increasing the ratio of torque/(square of current) by a two air gaps, apply windings for generating a rotating magnetic field to the outer and inner stators, and form squirrel-cage windings on the rotor.

Abstract: In an axial-air-gap induction motor which has a disk-shaped stator and rotor placed coaxially around a rotating shaft with their surfaces opposing each other across a predetermined gap, the stator and rotor are each composed of a disk-shaped yoke and teeth fitted and secured in the yoke, making it easy to fasten the stator to the bracket, and the rotor to the rotating shaft, as well as to mount windings in the stator core and rotor core.

Abstract: In an axial-air-gap induction motor which has a disk-shaped stator and rotor placed coaxially around a rotating shaft with their surfaces opposing each other across a predetermined gap, the stator and rotor are each composed of a disk-shaped yoke and teeth fitted and secured in the yoke, making it easy to fasten the stator to the bracket, and the rotor to the rotating shaft, as well as to mount windings in the stator core and rotor core.

Abstract: A radial-air-gap induction motor is constituted so as to have a tow-layer air gap by setting a rotor between a cylindrical outer stator and inner stator in order to improve an efficiency by increasing the ratio of torque/(square of current) by a two-layer air-gap structure, apply a winding for generating a rotating magnetic field to the outer and inner stators, and form a squirrel-cage winding on the rotor.