Title:
自己始動式同期電動機
Document Type and Number:
Japanese Patent JP4849507
Kind Code:
B2
Abstract:
In a method of manufacturing a self-start synchronous motor for preventing deterioration of permanent magnets used in a rotor, and also for enhancing the efficiency of the self-start synchronous motor, the self-start synchronous motor comprising a stator having a stator core and windings wound around the stator core, and a rotor having an outer diameter slightly smaller than an inner diameter of the stator and arranged inside of the stator. The rotor is provided with a rotor core, a plurality of conductor bars embedded in the outer peripheral portion of the rotor core over an entire periphery thereof, end rings provided on opposite end sides of the conductor bars and constituting a squirrel cage conductor in cooperation with the conductor bars, and a plurality of permanent magnets embedded in the rotor core and arranged at a position inner than that of an inner peripheral surface of the conductor bars. Further, the conductor bars and the end rings are electrically and mechanically joined together through frictional agitation joint.
Inventors:
Yellow
Yoshio Tomio
Yasuro Oishi
Takahashi Akashi
Haruo Oharaki
Yoshio Tomio
Yasuro Oishi
Takahashi Akashi
Haruo Oharaki
Application Number:
JP2005153698A
Publication Date:
January 11, 2012
Filing Date:
May 26, 2005
Export Citation:
Assignee:
Hitachi Appliances, Inc.
International Classes:
H02K15/03; H02K1/27; H02K21/46
Domestic Patent References:
| JP2002359956A | ||||
| JP2004236456A | ||||
| JP8009604A | ||||
| JP2001339884A | ||||
| JP63202249A | ||||
| JP200512992A |
Attorney, Agent or Firm:
Polaire Patent Business Corporation