Title:
PERMANENT MAGNET TYPE ROTARY MACHINE
Document Type and Number:
Japanese Patent JPS6013457
Kind Code:
A
Abstract:
PURPOSE:To gradually reduce a magnetic flux from the center of a magnet toward the end, to decrease a magnetic sound and to equalize an air gap by forming the shape of the ends of the magnet in wavy shape. CONSTITUTION:A magnet 2 is secured by an adhesive to the inside of a cylindrical yoke 1. The circumferential end 3a of the magnet 2 is formed in a wavy shape. The wavy portion 2a may be essentially irregular at the end of the magnet. An armature 3 is disposed inside the magnet 2.
Inventors:
NISHIO YUKIHIRO
HAYASHI NOBUYUKI
HAYASHI NOBUYUKI
Application Number:
JP12129383A
Publication Date:
January 23, 1985
Filing Date:
July 04, 1983
Export Citation:
Assignee:
NIPPON DENSO CO
International Classes:
H02K1/27; H02K23/04; (IPC1-7): H02K21/08; H02K23/04
Domestic Patent References:
| JPS5846280B2 | 1983-10-15 |
Attorney, Agent or Firm:
Takashi Okabe