Title:
A manufacturing method of a permanent magnet motor and a permanent magnet motor
Document Type and Number:
Japanese Patent JP6071275
Kind Code:
B2
Abstract:
A permanent magnet motor includes a stator core including a core portion and chip portions each formed of dust core, a stator having a coil wound on the stator core and a rotor. The core portion includes steel plates stacked and secured to one another and an annular path portion and salient pole portions. The chip portions are attached to distal ends of the salient pole portions respectively, each chip portion having at least one axial end axially protruding from an axial end of each salient pole portion and one or more radially extending protrusions. The salient pole portions are magnetically routed by the path portion. The salient pole portions have distal end sides formed with recesses capable of accommodating the protrusions, respectively. The protrusions are accommodated in the respective recesses so that the chip portions are attached to the core portion.
Inventors:
Nitta Isamu
Application Number:
JP2012146980A
Publication Date:
February 01, 2017
Filing Date:
June 29, 2012
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H02K1/18; H02K1/02; H02K15/02; H02K15/12
Domestic Patent References:
| JP2005143237A | ||||
| JP2011244672A | ||||
| JP2011193573A |
Attorney, Agent or Firm:
Patent Business Corporation Sato International Patent Office
Previous Patent: A vibrant tune position determining device and a program
Next Patent: DRIVE FOR MARKING PRESS
Next Patent: DRIVE FOR MARKING PRESS