Title:
SINGLE-PHASE MOTOR AND HERMETIC COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2007/116431
Kind Code:
A1
Abstract:
An inexpensive high-efficiency single-phase motor obtained by employing a
stator core having a profile of good blank layout while ensuring the magnetic
path of a core back. The single-phase motor comprises a stator core (1) formed
by laminating a plurality of magnetic steel sheets and provided with N slots where
N/2 is an odd number and a part of the slots are large slots (4) while the other slots
are small slots (3) shallower than the large slot (4), a main winding (6) of single-phase
two-pole concentric winding system inserted into the large slots (4) or the small
slots (3), and an auxiliary winding (7) of single-phase two-pole concentric
winding system inserted into the large slots (4) or the small slots (3) and located
at a position other than 90° electric angle with respect to the main winding
(6), characterized in that such slots out of the N slots as having a smaller space
factor of winding than the others because of the auxiliary winding (7) being arranged
at a position other than 90° electric angle with respect to the main winding
(6) are small slots (3) and the other slots are large slots (4).
Inventors:
YOSHINO HAYATO (JP)
TAKITA YOSHIO (JP)
YABE KOJI (JP)
OIKAWA TOMOAKI (JP)
TSUTSUMI TAKAHIRO (JP)
TAKITA YOSHIO (JP)
YABE KOJI (JP)
OIKAWA TOMOAKI (JP)
TSUTSUMI TAKAHIRO (JP)
Application Number:
PCT/JP2006/306613
Publication Date:
October 18, 2007
Filing Date:
March 30, 2006
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
YOSHINO HAYATO (JP)
TAKITA YOSHIO (JP)
YABE KOJI (JP)
OIKAWA TOMOAKI (JP)
TSUTSUMI TAKAHIRO (JP)
YOSHINO HAYATO (JP)
TAKITA YOSHIO (JP)
YABE KOJI (JP)
OIKAWA TOMOAKI (JP)
TSUTSUMI TAKAHIRO (JP)
International Classes:
H02K17/08
Foreign References:
| JPS5826555A | 1983-02-17 |
Attorney, Agent or Firm:
MIZOI, Shoji (17-10 Ofuna 2-chome, Kamakura-sh, Kanagawa 56, JP)
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