Title:
SELF-START PERMANENT MAGNET SYNCHRONOUS MOTOR, AND COMPRESSOR USING THE SAME
Document Type and Number:
Japanese Patent JP2009153307
Kind Code:
A
Abstract:
To provide a self-start permanent magnet synchronous motor which generates a stable starting torque and adjusts the starting torque arbitrarily, irrespective of a generating position of magnetic flux of a stator which changes according to the timing and voltage phase of power supply, and to provide a compressor and an air conditioner using the motor.
At least one pair or more of bars which constitute a squirrel cage coil and form an opposite angle at a magnetic pole pitch are made nonconductive. The self-start permanent magnet synchronous motor with a rotor structure can reduce and adjust a difference of the starting torque produced by a voltage phase and a rotor position, and improve motor efficiency.
Inventors:
KIKUCHI SATOSHI
MIKAMI HIROYUKI
TAKAHASHI AKIFUMI
YOSHIKAWA TOMIO
TANAKA KEIJI
MIYAKE SHIGEJI
KO HAKUEI
OTAWARA MASARU
TOJO KENJI
KUMAKURA HIDEYUKI
MIKAMI HIROYUKI
TAKAHASHI AKIFUMI
YOSHIKAWA TOMIO
TANAKA KEIJI
MIYAKE SHIGEJI
KO HAKUEI
OTAWARA MASARU
TOJO KENJI
KUMAKURA HIDEYUKI
Application Number:
JP2007329483A
Publication Date:
July 09, 2009
Filing Date:
December 21, 2007
Export Citation:
Assignee:
HITACHI APPLIANCES INC
International Classes:
H02K21/46; F04C29/00; H02K1/27; H02K17/16; H02K21/14
Domestic Patent References:
| JP2001037127A | 2001-02-09 | |||
| JP2001037126A | 2001-02-09 |
Attorney, Agent or Firm:
Manabu Inoue
Yuji Toda
Yuji Toda