Search International and National Patent Collections

1. (WO2018044141) APPARATUS FOR SENSING ROTOR LOCATION AND MOTOR COMPRISING APPARATUS

Pub. No.:    WO/2018/044141    International Application No.:    PCT/KR2017/009704
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Wed Sep 06 01:59:59 CEST 2017
IPC: H02K 11/215
H02K 29/08
G01D 5/14
Applicants: LG INNOTEK CO., LTD.
엘지이노텍 주식회사
Inventors: WOO, Shung Hun
우승훈
KIM, Nam Hoon
김남훈
Title: APPARATUS FOR SENSING ROTOR LOCATION AND MOTOR COMPRISING APPARATUS
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.