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Patent Searching and Data


Title:
ACTUATOR, HEAD LAMP COMPRISING SAME, AND ACTUATOR CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2018/097615
Kind Code:
A1
Abstract:
According to the present invention, there may be provided an actuator comprising: a shaft comprising a thread; a rotor surrounding the shaft; a stator arranged outside the rotor; a moving portion coupled to the thread of the shaft; a housing that holds both ends of the shaft; and a substrate that is arranged on the housing and comprises a sensor portion for sensing the position of the moving portion, wherein the moving portion comprises a magnet; the sensor portion comprises a first sensor and a second sensor for sensing the amount of magnetic flux change following the position of the magnet; the first sensor generates a first signal including an area in which the measured voltage increases linearly as the magnet moves away from the first sensor; and the second sensor generates a second signal including an area in which the measured voltage decreases linearly as the magnet moves away from the second sensor.

Inventors:
LEE JIN SEOB (KR)
Application Number:
KR2017/013407
Publication Date:
May 31, 2018
Filing Date:
November 23, 2017
Export Citation:
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Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
B60Q1/068; B60Q1/00; B60Q1/076; F16H25/20; H02K7/08; H02K11/20
Foreign References:
KR20080084614A2008-09-19
KR20140016492A2014-02-10
KR20120070161A2012-06-29
KR101559924B12015-10-13
KR20040025830A2004-03-26
Other References:
See also references of EP 3546288A4
Attorney, Agent or Firm:
DANA PATENT LAW FIRM (KR)
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