Title:
GENERATOR AND CLOCK
Document Type and Number:
Japanese Patent JP2010206873
Kind Code:
A
Abstract:
To provide a generator reducing cogging torque while a density of magnetic flux occurring inside a stator is sufficiently secured.
The generator includes a rotor 1 and the stator 2. The rotor 1 has a rotor magnet 11. A part surrounding the rotor magnet 11 of the stator 2 is made thicker than the rotor magnet 11. Specifically, the thickness of a part surrounding the rotor magnet 11 of the stator 2 is ≥1.5 times of that of the rotor magnet 11 and ≤5 times thereof.
Inventors:
MASAI SATOSHI
TSUCHIYA KAZUHIRO
KOJIMA HIROYUKI
TSUCHIYA KAZUHIRO
KOJIMA HIROYUKI
Application Number:
JP2009046879A
Publication Date:
September 16, 2010
Filing Date:
February 27, 2009
Export Citation:
Assignee:
SEIKO EPSON CORP
International Classes:
H02K21/14; G04C10/00; H02K1/14
Attorney, Agent or Firm:
Tetsuya Mori
Yoshiaki Naito
Yasuhiro Bono
Yoshiaki Naito
Yasuhiro Bono