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Title:
HORIZONTAL LINEAR VIBRATION GENERATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/203521
Kind Code:
A1
Abstract:
Disclosed is a horizontal linear vibration generating device. The horizontal linear vibration generating device according to the present invention is configured to comprise: a case coupled to a bracket so as to form a mounting space therein; a stator including a coil, which is mounted on a circuit board on a top surface of the bracket, and a yoke, which is configured such that a portion of the outer surface thereof is surrounded by the coil; a vibrator configured to surround the stator and oscillating in a first direction inside the case due to interaction with the stator; and a pair of springs for elastically supporting the vibrator from both sides in the first direction, from between the case and the vibrator. The vibrator comprises: first and second magnet groups disposed facing each other in a second direction crossing the first direction, with the stator therebetween; and weight bodies disposed adjacent to the first and second magnet groups. The first and second magnet groups each comprise: a central magnet magnetized such that the magnetic field thereof is oriented toward the stator; and a pair of auxiliary magnets installed on both sides of the central magnet so as to contact the central magnet, and magnetized such that the magnetic fields thereof are oriented toward the central magnet. Magnetic pole surfaces on which the pair of auxiliary magnets are in contact with the central magnet are inclined.

Inventors:
KIM HYO JUN (KR)
SHIM SOON KOO (KR)
YOO HAN HO (KR)
JUNG KYUNG YANG (KR)
LEE WON GOOK (KR)
KIM SEUNG KI (KR)
Application Number:
PCT/KR2019/004541
Publication Date:
October 24, 2019
Filing Date:
April 16, 2019
Export Citation:
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Assignee:
JAHWA ELECTRONICS CO LTD (KR)
International Classes:
H02K33/02; H02K33/16; H04M19/04
Foreign References:
KR101583641B12016-01-08
US9755493B22017-09-05
US20080165451A12008-07-10
JP2017212793A2017-11-30
JP2002191160A2002-07-05
Attorney, Agent or Firm:
YOON, Byong Kuk et al. (KR)
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