公开(公告)号：US10542348B2

公开(公告)日：2020-01-21

申请号：US15959706

申请日：2018-04-23

Applicant: RION Co., Ltd.

Inventor： Takashi Iwakura ,  Fumitaka Funahashi ,  Kei Koyama

IPC: H04R11/02 ,  H04R1/10 ,  H02K35/06 ,  H01F7/124

Abstract: An electromechanical transducer includes: a structural portion configured such that two pairs of magnets magnetized in opposite directions, a yoke configured to guide magnetic fluxes from the magnets, and a coil configured to receive a supplied electric signal are located integrally; an armature having an inner portion penetrating an internal space of the structural portion and outer portions protruding from the inner portion toward both sides in a first direction, forming, together with the structural portion, a magnetic circuit through regions of the inner portion facing the two pairs of magnets, and configured to displace in a second direction perpendicular to the first direction by magnetic force of the magnetic circuit; and a pair of elastic members each located on both sides of the armature in the second direction, and configured to provide, to the armature, restoring force according to relative displacement of the armature corresponding to the structural portion.

公开(公告)号：US09601980B2

公开(公告)日：2017-03-21

申请号：US14172681

申请日：2014-02-04

Applicant: Rion Co., Ltd.

Inventor： Takashi Iwakura ,  Fumitaka Funahashi

IPC: H02K33/00 ,  H04R11/00 ,  H04R11/02

CPC classification number: H02K33/00 ,  H04R11/02

Abstract: An electromechanical transducer of the invention comprises a structural unit, an armature, and two elastic units. The structural unit includes magnets, a yoke and a coil. The armature has an inner portion disposed to pass through inside the structural unit and two outer portions protruding from the inner portion, and the armature constitutes a magnetic circuit with the structural unit via two regions through which components of the magnetic flux flow in reverse directions in the inner region. The elastic units give restoring forces to the outer portions in response to displacement of the armature due to magnetic forces of the magnetic circuit. Each of the elastic units includes a pair of elastic members symmetrically arranged via the armature in a direction of the displacement. Each of the elastic members has one end engaging one of the outer portions and another end engaging one of the elastic member attaching portions.

公开(公告)号：US20150207392A1

公开(公告)日：2015-07-23

申请号：US14172681

申请日：2014-02-04

Applicant: Rion Co., Ltd.

Inventor： Takashi Iwakura ,  Fumitaka Funahashi

IPC: H02K33/00

CPC classification number: H02K33/00 ,  H04R11/02

Abstract: An electromechanical transducer of the invention comprises a structural unit, an armature, and two elastic units. The structural unit includes magnets, a yoke and a coil. The armature has an inner portion disposed to pass through inside the structural unit and two outer portions protruding from the inner portion, and the armature constitutes a magnetic circuit with the structural unit via two regions through which components of the magnetic flux flow in reverse directions in the inner region. The elastic units give restoring forces to the outer portions in response to displacement of the armature due to magnetic forces of the magnetic circuit. Each of the elastic units includes a pair of elastic members symmetrically arranged via the armature in a direction of the displacement. Each of the elastic members has one end engaging one of the outer portions and another end engaging one of the elastic member attaching portions.

Abstract translation: 本发明的机电换能器包括结构单元，电枢和两个弹性单元。 结构单元包括磁体，磁轭和线圈。 电枢具有设置成穿过结构单元内部的内部部分和从内部部分突出的两个外部部分，并且电枢通过两个区域与结构单元构成磁路，通过该区域，磁通量的分量沿着相反方向流过 内部区域。 由于磁路的磁力，弹性单元响应于电枢的位移而向外部产生恢复力。 每个弹性单元包括一对弹性构件，该弹性构件通过衔铁在排列方向上对称地布置。 每个弹性构件具有接合外部之一的一端和与弹性构件附接部中的一个接合的另一端。