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公开(公告)号：US20200321845A1
公开(公告)日：2020-10-08
申请号：US16304185
申请日：2017-08-04
Applicant: JAHWA ELECTRONICS CO., LTD.
Inventor： Nam Jin CHOI , Kyung Hoon JO , Soon Koo SHIM , Young Bin CHONG , Chun CHOI , Won Gook LEE , Min Goo LEE
Abstract: A vibration generating apparatus includes a bracket coupled to a rectangular case to form an inner space, a stator including a circuit board coupled to an upper surface of the bracket and a coil connected to the circuit board, a vibrator including a permanent magnet arranged on an exterior of the coil and a weighted body coupled to an outer circumferential surface of the permanent magnet, and an elastic member connecting the stator and the vibrator and elastically supporting the vibrator. The weighted body is polyhedral, and the vibrator moves up-and-down.
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公开(公告)号：US20230112671A1
公开(公告)日：2023-04-13
申请号：US17790436
申请日：2020-12-30
Applicant: JAHWA ELECTRONICS CO., LTD.
Inventor： Soon Koo SHIM , Kyung Yang JUNG , Won Gook LEE , Han Ho YOO , Seung Ki KIM
IPC: H02K33/06
Abstract: A horizontal linear-vibration generating apparatus that includes: a case coupled to a bracket so as to provide mounting space therein; a stator mounted in the mounting space and including a coil-yoke unit electrically connected to a circuit substrate on the bracket; a vibrator having magnets corresponding to the coil-yoke unit and weighted bodies configured to amplify vibration and vibrating in a first direction with respect to the stator in the mounting space; and first and second springs correspondingly provided between the case and the vibrator and elastically supporting a shaking motion of the vibrator in the first direction with respect to the stator in the mounting space, at opposite sides of the vibrator, where the first spring and the second spring are integrally provided with first and second spring feet, respectively, for mounting the vibrator.
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公开(公告)号：US20180166960A1
公开(公告)日：2018-06-14
申请号：US15580999
申请日：2015-11-25
Applicant: JAHWA electronics Co., Ltd.
Inventor： Soon Koo SHIM , Young Bin CHONG , Chun Choi , Won Gook LEE , Min Goo LEE
IPC: H02K33/02
CPC classification number: H02K33/02
Abstract: A linear vibration generating device, which includes a stator fixed on a bracket and having a center yoke concentrically fixed in an inner space of coil winding units and at least one blade extending from the center yoke in a direction perpendicular to the concentric axis, and a vibrator having a magnet surrounding outer circumferences of the coil winding units, and an elastic body disposed between the stator and the vibrator. The blade has at least one passage through which a coil wire for electrically connecting the coil winding units passes.
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公开(公告)号：US20180042102A1
公开(公告)日：2018-02-08
申请号：US15461618
申请日：2017-03-17
Applicant: JAHWA electronics Co., Ltd.
Inventor： Chun CHOI , Soon Koo SHIM , Young Bin CHONG , Nam Jin CHOI , Won Gook LEE , Min Goo LEE , Kyung Hoon JO
CPC classification number: H05K1/0216 , B06B1/0207 , B06B1/045 , H02K11/02 , H02K33/16 , H02K2211/03 , H05K1/09 , H05K1/112 , H05K1/165 , H05K2201/09263 , H05K2201/09481 , H05K2201/09672
Abstract: A printed circuit board includes a pad to receive an electric signal from a controller, a plurality of signal lines connected to the pad to transmit the electric signal received at the pad, and a signal transmission unit connected to the signal lines to transmit the electric signal to a coil. The plurality of signal lines are configured to face each other in at least a partial region and/or disposed in a zigzag form in at least a partial region. If the printed circuit board and a vibration actuator including the printed circuit board are used, it is possible to change a high frequency interference region according to a pattern by changing a pattern of the printed circuit board, and to improve receiving efficiency of an antenna by reducing high frequency noise.
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