Title:
回転電機
Document Type and Number:
Japanese Patent JP6579395
Kind Code:
B2
Abstract:
A vehicle alternating-current power generator includes a stator formed by winding an armature winding on a stator core and a rotor arranged on the radial inside of the stator. The rotor includes a field core having a boss part and a plurality of claw-shaped magnetic pole parts, a field winding that is wound on the outer peripheral side of the boss part, and a permanent magnet that is arranged between the circumferentially adjacent claw-shaped magnetic pole parts. A d-axis magnetic circuit formed by magnetomotive force of the field winding and at least part of first and second magnet magnetic circuits formed by magnetic force of the permanent magnet are shared. When an electrical load is connected to the rotor, the relationship between a permeance Prt of the d-axis magnetic circuit and a permeance Pst of a q-axis magnetic circuit is set to satisfy Pst>Prt.
Inventors:
Hiroki Takahashi
Tomokazu Hisada
Tomokazu Hisada
Application Number:
JP2017089380A
Publication Date:
September 25, 2019
Filing Date:
April 28, 2017
Export Citation:
Assignee:
株式会社デンソー
International Classes:
H02K1/22; H02K1/24; H02K19/24
Domestic Patent References:
| JP2006060922A | ||||
| JP2009207333A | ||||
| JP2000050588A |
Foreign References:
| US6885129 |
Attorney, Agent or Firm:
Patent business corporation Kyoritsu