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Title:
ROTATING MACHINE WITH PERMANENT MAGNET AND METHOD FOR MANUFACTURING TEETH OF STATOR IRON CORE OF THE SAME
Document Type and Number:
Japanese Patent JP2006101673
Kind Code:
A
Abstract:

To provide a rotating machine miniaturized and reducing a torque loss and a torque pulsation.

A stator iron core 6 of the rotating machine with a plurality of permanent magnets 5 in a rotor 1, comprises a yoke 8, and teeth 9 attached to the yoke 8 and protruding toward the rotor 1. The teeth 9 are formed from at least an amorphous magnetic material. The processing unit of the amorphous magnetic material is reduced by a split constitution of the yoke 8 and the teeth 9 for constituting the stator iron core 6. A mechanical process which had been difficult to perform is easily implemented. The stator iron core can be designed and maximizes the efficiency. The compact rotating machine can be acquired and reduce the torque loss and the torque pulsation by a synergy effect of the rotor 1 with the permanent magnets 5 and the teeth 9 comprising the amorphous magnetic material.


Inventors:
Enomoto, Yuji
Oharagi, Haruo
Ito, Motoya
Yamazaki, Katsuyuki
Masaki, Ryozo
Oiwa, Shoji
Ishihara, Chio
Mita, Masahiro
Application Number:
JP2004000287661
Publication Date:
April 13, 2006
Filing Date:
September 30, 2004
Export Citation:
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Assignee:
HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO LTD
JAPAN SERVO CO LTD
HITACHI POWDERED METALS CO LTD
HITACHI METALS LTD
International Classes:
H02K1/18; H02K1/02; H02K15/02; H02K21/16
Domestic Patent References:
JPS61272331A
JPH03202432A
JP2004208386A
JPH04325845A
JPS5546839A
JPS58145052U
JPS53149855A
JPS61166902A
JP2003324867A
JP2004242369A
JP2005253168A
Attorney, Agent or Firm:
小川 勝男
田中 恭助