Title:
LINEAR ACTUATOR FOR DEVICE FOR SUPPLYING FLEXIBLE COMPONENTS
Document Type and Number:
WIPO Patent Application WO/2022/177141
Kind Code:
A1
Abstract:
A linear actuator according to the present invention comprises: a driving unit which is located inside a body, and provided with a first core into which a coil is inserted, a second core spaced apart from the inner circumferential surface of the first core, and a magnet located between the first core and the second core; a driving shaft which is disposed passing through a core shaft of the driving unit and is linearly reciprocated by the driving unit; a magnet holder which fixes the magnet and is coupled to the driving shaft; nuts which are located at one end and the other end of the driving shaft and prevent the rotation of the driving shaft; and resonance springs which are disposed in lower and upper portions of the driving unit and spaced apart from the outer circumferential surfaces of the nuts, and which apply force in the opposite direction of the motion of the driving unit. Accordingly, the present invention can convert the inertial force of the driving unit into the elastic energy of the springs to increase driving efficiency and thereby reduce noise, heat generation, and vertically downward residual vibrations.
Inventors:
HAN SANG WON (KR)
CHOI SEUNG HYEONG (KR)
CHOI SEUNG HYEONG (KR)
Application Number:
PCT/KR2021/020234
Publication Date:
August 25, 2022
Filing Date:
December 30, 2021
Export Citation:
Assignee:
HANSHIN CO LTD (KR)
International Classes:
B65G27/16; B65G27/32; H02K33/02; H02K41/02
Foreign References:
| JP2001220011A | 2001-08-14 | |||
| JP2019209315A | 2019-12-12 | |||
| KR20140100297A | 2014-08-14 | |||
| US20140084710A1 | 2014-03-27 | |||
| KR20160001055A | 2016-01-06 | |||
| KR102316747B1 | 2021-10-25 |
Attorney, Agent or Firm:
HANSUNG INTELLECTUAL PROPERTY (KR)
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