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公开(公告)号：US10381910B2
公开(公告)日：2019-08-13
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
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：US10389219B2
公开(公告)日：2019-08-20
申请号：US15334691
申请日：2016-10-26
Applicant: JAHWA electronics Co., Ltd.
Inventor： Nam Jin Choi , Kyung Hoon Jo , Soon Koo Shim , Young Bin Chong , Won Gook Lee , Min Goo Lee
Abstract: A vibration actuator includes a bracket coupled to a case to form an inner space; a stator having a circuit board coupled to an upper surface of the bracket, a coil connected to the circuit board, and a yoke provided in the coil; a vibrator having a permanent magnet disposed at an outer side of the coil and a weight coupled to an outer circumference of the permanent magnet; an elastic member configured to connect the stator and the vibrator and elastically support the vibrator; and a non-magnetic damper provided between the weight and the elastic member.
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公开(公告)号：US09742254B1
公开(公告)日：2017-08-22
申请号：US15347922
申请日：2016-11-10
Applicant: JAHWA electronics Co., Ltd.
Inventor： Nam Jin Choi , Kyung Hoon Jo , Soon Koo Shim , Young Bin Chong , Won Gook Lee , Min Goo Lee
IPC: H02K33/00
Abstract: Disclosed is an apparatus for generating linear vibration with a damper, which includes a housing having an inner space formed therein, a fixed body provided in the inner space and having a coil, a vibrating body having a magnet and a weight coaxially disposed with the coil and configured to move in a vertical direction on the basis of the fixed body, an elastic body configured to elastically support the vibrating body, a viscous fluid provided at an upper surface of the magnet and having viscosity, and a damper installed in the housing to face an upper surface of the vibrating body and configured to make a surface contact with the viscous fluid when the vibrating body moves upwards, the damper having a shape not making a surface contact with the entire viscous fluid simultaneously.
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公开(公告)号：US12040684B2
公开(公告)日：2024-07-16
申请号：US17783476
申请日：2021-02-01
Applicant: JAHWA electronics Co., Ltd.
Inventor： Hyo Jun Kim , Soon Koo Shim , Jong Soo Ryu , Hyun Gyu Sung , Jung Hoon Jang , Jun Ki Lee
CPC classification number: H02K7/063 , H02K3/26 , H02K5/1732 , H02K7/083 , H02K5/1677 , H02K2203/03
Abstract: An actuator for generating vibration, including a shaft; a middle supporter having a fitting portion fitted into an upper portion of the shaft and a support portion below the fitting portion to form a first space where a lower portion of the shaft is exposed; a circuit board having a driving coil and a hollow formed through the middle supporter; a housing having an inner space that accommodates the middle supporter and the circuit board so the circuit board is fixed thereto; a first yoke plate having a first magnet installed to face an upper surface of the driving coil and coupled to an upper portion of the middle supporter; a second yoke plate having a second magnet installed to face a lower surface of the driving coil and coupled to a lower portion of the middle supporter; and a weight installed to at least one of the yoke plates.
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公开(公告)号：US20170141666A1
公开(公告)日：2017-05-18
申请号：US15420334
申请日：2017-01-31
Applicant: JAHWA electronics Co., Ltd.
Inventor： Soon Koo Shim , Young Bin Chong , Nam Jin Choi , Min Goo Lee
Abstract: Disclosed is a linear vibration generating device including: a stator including a bracket on which a coil is seated, and a case made of a magnetic material which is engaged to the bracket to form an inner space; a vibrator including a permanent magnet for generating a vibration force in cooperation with the coil, and a weight enclosing a circumference of the permanent magnet; a resilient member which is positioned between the vibrator and the stator to resiliently support vertical oscillation of the vibrator; and a plate which is positioned between the resilient member and the vibrator.
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Patent Agency Ranking
公开(公告)号：US20160172950A1
公开(公告)日：2016-06-16
申请号：US15049569
申请日：2016-02-22
Applicant: Jahwa Electronics Co., Ltd.
Inventor： Soon Koo Shim , Young Bin Chong , Nam Jin Choi , Min Goo Lee
IPC: H02K33/00
Abstract: Disclosed is a linear vibration generating device including: a stator including a bracket on which a coil is seated, and a case made of a magnetic material which is engaged to the bracket to form an inner space; a vibrator including a permanent magnet for generating a vibration force in cooperation with the coil, and a weight enclosing a circumference of the permanent magnet; a resilient member which is positioned between the vibrator and the stator to resiliently support vertical oscillation of the vibrator; and a plate which is positioned between the resilient member and the vibrator.
Abstract translation: 本发明公开了一种线性振动发生装置，其特征在于，包括：定子，其具有支架，线圈被放置在所述支架上;以及壳体，由磁性材料制成，所述壳体与所述支架接合以形成内部空间; 振动器，其包括用于与线圈一起产生振动力的永磁体和包围永磁体的圆周的重量; 位于振动器和定子之间以弹性地支撑振动器的垂直振荡的弹性构件; 以及位于弹性构件和振动器之间的板。
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公开(公告)号：US12278544B2
公开(公告)日：2025-04-15
申请号：US18739267
申请日：2024-06-10
Applicant: JAHWA electronics Co., Ltd.
Inventor： Hyo Jun Kim , Soon Koo Shim , Jong Soo Ryu , Hyun Gyu Sung , Jung Hoon Jang , Jun Ki Lee
Abstract: An actuator for generating vibration, including a middle supporter to form a first space; a shaft provided in the middle supporter and exposed in the first space; a circuit board having a driving coil and a hollow formed through the middle supporter; a housing having an inner space formed to accommodate the middle supporter and the circuit board so that the circuit board is fixed thereto; a first yoke plate having a first magnet installed to face an upper surface of the driving coil and fixedly coupled to an upper portion of the middle supporter; a second yoke plate having a second magnet installed to face a lower surface of the driving coil and fixedly coupled to a lower portion of the middle supporter; and a weight installed to at least one of the first and second yoke plates.
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公开(公告)号：US11070121B2
公开(公告)日：2021-07-20
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：US09913364B2
公开(公告)日：2018-03-06
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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公开(公告)号：US09800126B2
公开(公告)日：2017-10-24
申请号：US15049569
申请日：2016-02-22
Applicant: Jahwa Electronics Co., Ltd.
Inventor： Soon Koo Shim , Young Bin Chong , Nam Jin Choi , Min Goo Lee
Abstract: Disclosed is a linear vibration generating device including: a stator including a bracket on which a coil is seated, and a case made of a magnetic material which is engaged to the bracket to form an inner space; a vibrator including a permanent magnet for generating a vibration force in cooperation with the coil, and a weight enclosing a circumference of the permanent magnet; a resilient member which is positioned between the vibrator and the stator to resiliently support vertical oscillation of the vibrator; and a plate which is positioned between the resilient member and the vibrator.
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