公开(公告)号：US20190165662A1

公开(公告)日：2019-05-30

申请号：US16313416

申请日：2017-05-24

申请人： NIDEC COPAL CORPORATION

发明人： Masaya ENDO

IPC分类号： H02K33/16 ,  B06B1/04

摘要： A thin linear vibration motor that suppresses the occurrence of operating noise. A linear vibration motor has a stationary element; a movable element that is supported elastically, so as to enable vibration along an axial direction, on the stationary element; and a driving portion causing the movable element to undergo reciprocating vibration along the axial direction, through the provision of a coil on the stationary element, the provision of a driving magnet on the movable element, and the application of an electric current to the coil while the driving magnet is attracted by magnetic material (supporting plate) that is provided on the stationary element side of the coil, wherein: the stationary element is provided with a stationary magnet that is magnetized in a direction that is perpendicular to the axial direction; and the movable element is provided with a movable magnet that opposes, while repelling, the stationary magnet.

公开(公告)号：US20180229270A1

公开(公告)日：2018-08-16

申请号：US15577159

申请日：2016-05-26

申请人： Nidec Copal Corporation

发明人： Risa NAKAZATO ,  Masaya ENDO ,  Kazuya MOCHIDA

IPC分类号： B06B1/04 ,  H02K33/16 ,  H02K33/06

CPC分类号： B06B1/045 ,  F16F1/027 ,  H02K33/06 ,  H02K33/16

摘要： A linear vibration motor is provided with a frame, a weight, and a plate spring 4, and is also provided with weight side drive members disposed within a through hole in the weight and attached with the through hole space along the direction of vibration therebetween, and a frame side drive member supported by the frame and disposed so as to pass through the through hole space. The plate spring 4 has a frame side seating part 4A attached to the frame, a weight side seating part attached to an end surface of the weight, and an elastic deformation part that elastically deforms between the frame side seating part and the weight side seating part. The weight side drive members are disposed so as to protrude from the end surface of the weight in the range of the thickness of the plate spring 4.

公开(公告)号：US20140035397A1

公开(公告)日：2014-02-06

申请号：US13954777

申请日：2013-07-30

申请人： Nidec Copal Corporation

发明人： Masaya ENDO ,  Yoshihide TONOGAI

IPC分类号： H02K33/18

CPC分类号： H02K33/18 ,  H02K33/16

摘要： A first weight portion of a vibration actuator includes an inner-side enlarged portion that protrudes from an end portion of a solid head in a direction of a vibration axis and that is inserted into an opening portion extending within a first compression coil spring along the direction of the vibration axis. An outer peripheral surface of the inner-side enlarged portion becomes continuously smaller in diameter from a base end towards a free end, with the vibration axis being the center of the diameter. That is, the inner-side enlarged portion has the shape of a truncated cone. The inner-side enlarged portion is inserted into the opening portion of the first compression coil spring and the opening portion is utilized to change the length of the inner-side enlarged portion in the direction of the vibration axis, thereby changing the mass of the first weight portion.

摘要翻译： 振动致动器的第一重量部分包括从实心头的端部沿振动轴线的方向突出的内侧扩大部分，并且插入到沿第一压缩螺旋弹簧的方向延伸的开口部分中 的振动轴。 内侧扩大部的外周面从基端向自由端的直径连续变小，振动轴为直径的中心。 也就是说，内侧扩大部分具有截头圆锥形状。 内侧扩大部分插入到第一压缩螺旋弹簧的开口部分中，并且开口部分用于改变内侧扩大部分在振动轴线方向上的长度，从而改变第一压缩螺旋弹簧的质量 重量部分。

公开(公告)号：US20180236487A1

公开(公告)日：2018-08-23

申请号：US15516511

申请日：2015-10-05

申请人： Nidec Copal Corporation

发明人： Masaya ENDO ,  Risa NAKAZATO

IPC分类号： B06B1/04 ,  H02K33/16 ,  H02K33/02 ,  H02P25/032 ,  H02K5/04

CPC分类号： B06B1/045 ,  H02K5/04 ,  H02K11/33 ,  H02K33/02 ,  H02K33/16 ,  H02K2203/03 ,  H02P25/032

摘要： A linear vibration motor wherein the amplitude along the direction of thickness is limited, and wherein vibration is produced with a large thrusting force while securing adequate mass in the weight. The linear vibration motor comprises: a coil that is supported over a bottom plate that faces a top face portion of a case, and that is wound along a plane that is perpendicular to the bottom plate; a magnetic pole portion that is able to produce a thrusting force in the vertical direction through an electric current that flows in the coil; a weight that vibrates integrally with the magnetic pole portion; and an elastic member that supports the weight on the top face portion of the case so as to enable vertical vibration.

公开(公告)号：US20150137628A1

公开(公告)日：2015-05-21

申请号：US14546179

申请日：2014-11-18

申请人： Nidec Copal Corporation

发明人： Masaya ENDO ,  Satoru ISHIKAWA

IPC分类号： H02K33/00

CPC分类号： H02K33/16 ,  H02K33/00 ,  H02K33/02

摘要： A vibration actuator includes: a coil having a vibration space along an axial direction; an outer case that covers the coil and that extends the vibration space in the axial direction; a movable element that comprises a magnet that vibrates within the coil and a weight unit that vibrates within the outer case and that is connected to one end side, in the axial direction, of the magnet; and an elastic member that supports elastically the vibration of the movable element in the axial direction. A resin layer is secured to an outer peripheral surface of the weight unit that faces an inner surface of the outer case. An oil film is interposed between the resin layer and the inner surface of the outer case.

摘要翻译： 振动致动器包括：沿轴向具有振动空间的线圈; 覆盖线圈并沿轴向延伸振动空间的外壳; 可动元件，其包括在所述线圈内振动的磁体和在所述外壳内振动并且与所述磁体的轴向的一端侧连接的重量单元; 以及弹性构件，其弹性地支撑可动元件在轴向上的振动。 树脂层固定在重物单元的面向外壳的内表面的外周面上。 在树脂层和外壳的内表面之间插入油膜。