Title:
PERMANENT MAGNET TYPE ROTARY ELECTRIC MACHINE AND COMPRESSOR USING SAME
Document Type and Number:
Japanese Patent JP2007074898
Kind Code:
A
Abstract:
To provide a permanent magnet type rotary electric machine that deliversa a high power output and develops low noise.
A permanet magnet type rotary electric machine 11 has a stator 7 in which a concentrated armature winding 9 is applied so as to surround teeth 0 within a plurality of slots 13 formed on a stator core 12, and a rotor 1 in which permanent magnets 3 are housed in a plurality of permanent magnet inserting holes 14 formed at a rotor core 2. A high power output and low noise can be achieved by keeping a magnetic pole angle of θ1 of the rotor core 2 to be within a range between 100 °and 120°, and forming a recess 15 between poles on the outer periphery of the rotor core 2.
Inventors:
WAKUI SHINICHI
KIKUCHI SATOSHI
OHARAGI HARUO
TAKAHATA RYOICHI
NOMA KEIJI
KIKUCHI SATOSHI
OHARAGI HARUO
TAKAHATA RYOICHI
NOMA KEIJI
Application Number:
JP2006337722A
Publication Date:
March 22, 2007
Filing Date:
December 15, 2006
Export Citation:
Assignee:
HITACHI LTD
HITACHI IND EQUIPMENT SYS
HITACHI IND EQUIPMENT SYS
International Classes:
H02K1/24; H02K1/27; H02K21/14
Domestic Patent References:
| JP2002078255A | 2002-03-15 | |||
| JP2001218404A | 2001-08-10 | |||
| JP2001251825A | 2001-09-14 | |||
| JP2000166134A | 2000-06-16 | |||
| JPH11146584A | 1999-05-28 |
Foreign References:
| WO1994005075A1 | 1994-03-03 |
Attorney, Agent or Firm:
Manabu Inoue