Title:
ACTUATOR FOR GENERATING VIBRATION
Document Type and Number:
WIPO Patent Application WO/2021/215628
Kind Code:
A1
Abstract:
An actuator for generating vibration of the present invention comprises: a shaft; a middle supporter comprising a fitting part fitted around an upper portion of the shaft, and a support part disposed in a lower portion of the fitting part and forming a first space through which a lower portion of the shaft is exposed; a circuit board including a driving coil and a hollow portion which extends through the middle supporter; a housing which includes an inner space formed therein so as to accommodate the middle supporter and the circuit board, and to which the circuit board is fixed; a first yoke plate which includes a first magnet installed thereon and facing an upper surface of the driving coil, and is fixedly coupled to an upper portion of the middle supporter; a second yoke plate which includes a second magnet installed thereon and facing a lower surface of the driving coil, and is fixedly coupled to a lower portion of the middle supporter; and a weight member installed in at least one of the first and second yoke plates.
Inventors:
KIM HYO JUN (KR)
SHIM SOON KOO (KR)
RYU JONG SOO (KR)
SUNG HYUN GYU (KR)
JANG JUNG HOON (KR)
LEE JUN KI (KR)
SHIM SOON KOO (KR)
RYU JONG SOO (KR)
SUNG HYUN GYU (KR)
JANG JUNG HOON (KR)
LEE JUN KI (KR)
Application Number:
PCT/KR2021/001268
Publication Date:
October 28, 2021
Filing Date:
February 01, 2021
Export Citation:
Assignee:
JAHWA ELECTRONICS CO LTD (KR)
International Classes:
H02K7/065; G06F3/041; H02K5/173; H02K7/00; H02K7/08; H04M19/04
Foreign References:
| KR20070075747A | 2007-07-24 | |||
| KR101097615B1 | 2011-12-22 | |||
| KR100726243B1 | 2007-06-08 | |||
| JP2013103142A | 2013-05-30 | |||
| US20010013730A1 | 2001-08-16 | |||
| KR102144680B1 | 2020-08-28 |
Attorney, Agent or Firm:
JEONG, Young Chan (KR)
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