Title:
BLDC MOTOR
Document Type and Number:
WIPO Patent Application WO/2011/145791
Kind Code:
A1
Abstract:
The present invention relates to a brushless DC (BLDC) motor, and more particularly, to a BLDC motor in which: a rotor includes a permanent magnet, and neither a brush nor a commutator; a field pole is disposed so as to have a coil of a 3-phase motor; and a power device such as a field effect transistor (FET) controls a current flowing through a corresponding field coil after a hole sensor or a photo sensor detects the position of the rotor, in order to obtain rotary power through repulsive and attractive forces. Furthermore, the present invention relates to a BLDC motor including a coil that is not wound onto a core, but wound onto a bobbin. According to the present invention, a coil (12) is not wound onto a large and heavy core, but is wound onto a slim and light bobbin (11). Thus, the BLDC motor of the present invention may have increased output and be smaller in size (volume) and lower in weight as compared to a typical BLDC motor, and also may have drastically increased output while having the same or similar size and weight as a typical BLDC motor.
Inventors:
SEONG JANG YEON (KR)
CHOI SOO BONG (KR)
CHOI SOO BONG (KR)
Application Number:
PCT/KR2010/008473
Publication Date:
November 24, 2011
Filing Date:
November 29, 2010
Export Citation:
Assignee:
SEONG JANG YEON (KR)
CHOI SOO BONG (KR)
CHOI SOO BONG (KR)
International Classes:
H02K3/46; H02K29/00
Foreign References:
| JP2009033968A | 2009-02-12 | |||
| JP2008245414A | 2008-10-09 | |||
| JP2525483B2 | 1996-08-21 | |||
| US20060111214A1 | 2006-05-25 | |||
| KR100660305B1 | 2006-12-21 |
Attorney, Agent or Firm:
SO, JIN HO (KR)
소진호 (KR)
소진호 (KR)
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Claims: