Patent ID: 7649298
Filing Date: 2010-01-19
Classification: H02K,Y10T

Abstract:
1. A claw teeth type electric rotary machine comprising: a stator including an annular core with claws formed from a powder core and an annular coil installed inside the annular core, and a rotor rotatably positioned inside the stator, wherein an inner edge of the annular core is provided with plural claw poles which are protruded at a predetermined interval in a circumferential direction and extended in an axial direction of the annular core so as to alternately meshes with each other, and wherein the stator comprises the annular core with claws, the annular coil, and a molded nonmagnetic potting material filled between the annular core with claws and annular coil, so that the annular core with claws and annular coil are integrated with the molded non-magnetic potting material, wherein the rotary machine is a three-phase electric rotary machine, wherein the annular cores with claws equivalent to three phases are layered in alignment, and adjoining annular cores with claws are shifted from each other by 120 degrees of electrical angle.