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Title:
UNIVERSAL MOTOR AND LAMINATION FOR STATOR THEREOF
Document Type and Number:
Japanese Patent JP2007159400
Kind Code:
A
Abstract:

To provide a lamination for the stator core of a universal motor.

The lamination 10 for the stator of a universal motor has two poles 12 and a ring-shaped magnetic-flux return path for jointing the two poles together. Each pole 12 has a pole face 16. A rotor space 20 for receiving a rotor is demarcated between the pole faces. Each pole 12 has a neck part for receiving a stator field winding; the width (A) of a ring 14, the length (B) of each pole 12, the radial distance (C) between the pole faces 16, and the width (D) of the neck part 18 are selected, on the basis of a formula for achieving improved power output and output torque.


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Inventors:
TANG XIAN
YUAN WEIFENG
ZHAO JIAN
Application Number:
JP2006357080A
Publication Date:
June 21, 2007
Filing Date:
December 05, 2006
Export Citation:
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Assignee:
JOHNSON ELECTRIC SA
International Classes:
H02K1/14; H02K1/18; H02K1/26
Attorney, Agent or Firm:
Sadao Kumakura
Fumiaki Otsuka
Takaki Nishijima
Hiroyuki Suda