Title:
AC GENERATOR FOR VEHICLE
Document Type and Number:
Japanese Patent JP2001103721
Kind Code:
A
Abstract:
To improve efficiency by reducing the copper loss in the stator coil, which is the largest loss in an AC generator of a vehicle by optimizing the balance of the ratio of the outer diameter of a rotor and that of a stator.
In the AC generator of a vehicle, a permanent magnet is arranged between the nail shaped magnetic poles of the AC generator for a vehicle with nail shaped magnetic pole structure, the ratio of the outer diameter of a rotor and that of a stator is set to less than 0.73, and the copper loss is drastically reduced in the stator coil.
Inventors:
KANAZAWA HIROYUKI
TAWARA KAZUO
HONDA YOSHIAKI
TAKANO MASAMI
SUZUKI ATSUSHI
MATSUBARA KENICHIRO
TAWARA KAZUO
HONDA YOSHIAKI
TAKANO MASAMI
SUZUKI ATSUSHI
MATSUBARA KENICHIRO
Application Number:
JP27815699A
Publication Date:
April 13, 2001
Filing Date:
September 30, 1999
Export Citation:
Assignee:
HITACHI LTD
International Classes:
H02K21/02; H02K1/12; H02K1/22; H02K19/22; H02K21/04; (IPC1-7): H02K19/22; H02K21/04
Domestic Patent References:
| JPH04222438A | 1992-08-12 | |||
| JPS4989110A | 1974-08-26 | |||
| JPS63194543A | 1988-08-11 | |||
| JPH01128973U | 1989-09-01 | |||
| JPH10313560A | 1998-11-24 | |||
| JPH11155270A | 1999-06-08 | |||
| JPH1066286A | 1998-03-06 | |||
| JPH04165950A | 1992-06-11 | |||
| JPH11187599A | 1999-07-09 | |||
| JPH0622486A | 1994-01-28 | |||
| JPH06197502A | 1994-07-15 | |||
| JPH06141499A | 1994-05-20 |
Attorney, Agent or Firm:
Sakuta Yasuo