Title:
ELECTRIC MOTOR
Document Type and Number:
WIPO Patent Application WO/2008/111776
Kind Code:
A3
Abstract:
An electric motor is disclosed. The motor in which a rotor (120) is started using induction torque generated as power is supplied to a coil (112, 114) of a stator, the rotor (120) includes a rotor core (123), conductive bars (122) arranged along a circumferential direction, in an outer rim region of the rotor core (120), to generate an induction current, magnets (130) provided in the rotor core (120), to generate a magnetic flux, for generation of a magnetic torque, and end-rings (150, 151 ) provided at the top and bottom of the rotor core (120) to have no interference with the magnets (130), the end-rings (150, 151 ) being connected with the plurality of conductive bars (122). Another embodiment, instead of the magnets (130), comprises flux barriers (140) formed in the rotor core (120), to interrupt flow of a magnetic flux, for generation of reluctance torque.
Inventors:
NAM HYUK (KR)
EUM SANG JOON (KR)
EUM SANG JOON (KR)
Application Number:
PCT/KR2008/001324
Publication Date:
January 20, 2011
Filing Date:
March 07, 2008
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
NAM HYUK (KR)
EUM SANG JOON (KR)
NAM HYUK (KR)
EUM SANG JOON (KR)
International Classes:
H02K1/27; H02K17/26; H02K21/46
Foreign References:
| GB917209A | 1963-01-30 | |||
| US20030090170A1 | 2003-05-15 | |||
| GB940997A | 1963-11-06 | |||
| DE10254967A1 | 2004-06-09 |
Attorney, Agent or Firm:
BAHNG, Hae Cheol et al. (15th Floor YoSam Building,648-23 Yeoksam-dong, Kangnam-ku, Seoul 135-748, KR)
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