Title:
APPARATUS FOR SENSING ROTOR LOCATION AND MOTOR COMPRISING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2018/044141
Kind Code:
A1
Abstract:
The present invention provides an apparatus for sensing rotor location, the apparatus comprising: a sensing magnet; and a substrate arranged above the sensing magnet, wherein the sensing magnet comprises a main magnet and sub magnet, the substrate comprises a first sensor and second sensor arranged along the same circular path with respect to the center of the sensing magnet, the first sensor comprises a plurality of first hole sensors adjacent to each other on the circular path, the second sensor comprises a plurality of second hole sensors adjacent to each other on the circular path, the plurality of first hole sensors are arranged separated by a first angle along the circumference of the circular path, the plurality of second hole sensors are arranged separated by the first angle along the circumference of the circular path, and the adjacent first hole sensor and second hole sensor are arranged separated by a second angle different from the first angle along the circumference of the circular path.
Inventors:
WOO SHUNG HUN (KR)
KIM NAM HOON (KR)
KIM NAM HOON (KR)
Application Number:
PCT/KR2017/009704
Publication Date:
March 08, 2018
Filing Date:
September 05, 2017
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
H02K11/215; G01D5/14; H02K29/08
Foreign References:
| JP2002262541A | 2002-09-13 | |||
| JP2007252096A | 2007-09-27 | |||
| JP2010243152A | 2010-10-28 | |||
| JP2001349747A | 2001-12-21 | |||
| JP2009128246A | 2009-06-11 |
Other References:
See also references of EP 3509198A4
Attorney, Agent or Firm:
DANA PATENT LAW FIRM (KR)
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