ELECTRIC ROTATING MACHINE AND METHOD FOR MANUFACTURING A STATOR CORE FOR THE ELECTRIC ROTATING MACHINE

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20130140930A1
SERIAL NO

13817344

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Electric rotating machine suppressing narrowing of a magnetic path caused by a skin effect in a housing to increase torque, including stator core having e.g. core back and teeth; stator windings wound around the teeth; stator including stator core and stator windings; housing composed of a magnetic body accommodating the stator; rotor disposed for rotation on an inner circumferential side of the stator. An air gap is provided between an inside wall of the housing and an outer circumferential surface of core back. The core back has projections on a radial back surface of a portion where the teeth are provided. The projections are each provided to be continuous in an axial direction and have tip portions in contact with inside wall of the housing. The air gap may be defined by the inside wall of the housing, the outer circumferential surface of the core back and the projections.

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Patent Owner(s)

Patent OwnerAddress
HITACHI AUTOMOTIVE SYSTEMS LTD2520 TAKABA HITACHINAKA-SHI IBARAKI 312-8503

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kakugawa, Shigeru Hitachi, JP 46 325
Kikuchi, Satoshi Naka-gun, JP 104 1403
Koka, Hidetoshi Hitachi, JP 8 30
Maki, Kohji Hitachi, JP 44 223
Matsunobu, Yutaka Mito, JP 79 920
Sugimoto, Shinji Hitachi, JP 32 160

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