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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
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。
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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
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.
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公开(公告)号：US20150233808A1
公开(公告)日：2015-08-20
申请号：US14357119
申请日：2012-11-16
Applicant: RION Co., Ltd.
Inventor： Junichi Motoyoshi , Takashi Iwakura
Abstract: An apparatus that is able to measure a viscosity and a density directly within a short time with a small amount of sample, which has been difficult for existing vibratory viscometer. The end part of an oscillator is formed in a shape, such as a sphere, whose resistance by a fluid can be logically derived, and the viscosity and the density of a fluid are calculated based on a predefined mechanical impedance and on an amplitude ratio and a phase difference of accelerations in the cases the oscillator is in the air and is in the fluid.
Abstract translation: 一种能够在短时间内直接用少量样品测量粘度和密度的装置，这对现有的振动粘度计来说是困难的。 振荡器的端部形成为诸如球体的形状，其流体的阻力可以被逻辑地导出，并且基于预定义的机械阻抗和振幅比计算流体的粘度和密度，并且 振荡器在空气中并处于流体的情况下的加速度的相位差。
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公开(公告)号：US20140270276A1
公开(公告)日：2014-09-18
申请号：US14167636
申请日：2014-01-29
Applicant: Rion Co., Ltd.
Inventor： Takashi Iwakura , Munehiro Date
CPC classification number: H04R11/02 , H02K35/06 , H04R1/00 , H04R11/00 , H04R2460/13
Abstract: An electromechanical transducer of the invention comprises a structural unit, an armature, and first and second elastic members. The structural unit includes at least one pair of magnets, a yoke conducting a magnetic flux generated by the magnets, and a coil supplied with an electric signal. The armature has an inner portion disposed to pass through an internal space of the structural unit and first and second outer portions protruding on both sides 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 directions opposite to each other in the inner portion. The first and second elastic members connect between the first and second outer portions of the armature and the structural unit, respectively.
Abstract translation: 本发明的机电换能器包括结构单元，电枢以及第一和第二弹性构件。 该结构单元包括至少一对磁体，一个传导由磁体产生的磁通的磁轭和一个被提供有电信号的线圈。 电枢具有设置成穿过结构单元的内部空间的内部部分和从内部两侧突出的第一和第二外部部分，并且电枢通过两个区域构成具有结构单元的磁路，通过这两个区域， 磁通量在内部彼此相反的方向流动。 第一和第二弹性构件分别连接在电枢的第一和第二外部部分和结构单元之间。
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公开(公告)号：US12289579B2
公开(公告)日：2025-04-29
申请号：US18025724
申请日：2021-09-06
Applicant: RION CO., LTD.
Inventor： Takashi Iwakura
IPC: H04R11/02
Abstract: This electromechanical transducer includes a pair of magnets, a pair of yokes that each comprise a plurality of yoke components superposed over each other in a flat-plate-form region and that guide magnetic fluxes generated by the magnets, a hollow-core coil to which an electric signal is supplied, an armature passed through a space inside a structural section formed by integrally arranging the magnets and the coil on the inner sides of the pair of yokes, and a pair of elastic members that each engage the structural section and the armature.
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Patent Agency Ranking
公开(公告)号：US11178495B2
公开(公告)日：2021-11-16
申请号：US17051135
申请日：2019-04-18
Applicant: RION CO., LTD.
Inventor： Takashi Iwakura
Abstract: The electromechanical transducer is provided with: a structure portion in which a magnet, yokes, and a coil are integrally arranged; an armature which includes an inner portion penetrating through an internal space of the structure portion along a central axis in the X-direction, and outer portions, constitutes a magnetic circuit with the structure portion, and is displaced in the Z-direction; and elastic members providing the armature with a recovery force. Each of the elastic members has a first and a second engaging portions. A width in which a force in the Z-direction acts between each of the elastic members and the structure portion via the first engaging portion has a first distance. A width between each of the elastic members and the outer portion via the second engaging portion has a second distance in the Y-direction, wherein the dimension condition of 2a>2×2b is set.
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公开(公告)号：US10447132B2
公开(公告)日：2019-10-15
申请号：US15439750
申请日：2017-02-22
Applicant: Rion Co., Ltd.
Inventor： Takashi Iwakura
Abstract: An electromechanical transducer of the invention comprises a structural unit, an armature, and the first and second elastic units. The structural unit includes magnets, a yoke and a coil. The armature includes an inner portion disposed to pass through inside the structural unit and two outer portions protruding from the inner portion in a first direction, 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. In the armature, a cross-sectional area at a predetermined position between the two regions is smaller than that at the two regions, and magnetic flux flowing in the first direction within a range of displacement of the armature.
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公开(公告)号：US11051097B2
公开(公告)日：2021-06-29
申请号：US17003443
申请日：2020-08-26
Applicant: RION Co., Ltd.
Inventor： Akihiro Soeta , Takashi Iwakura
Abstract: An installation structure of a vibrator includes elastic members formed of an elastic material, the elastic members being arranged between a housing of a listening device, and the vibrator accommodating an electromechanical transducer for transducing an electric signal into mechanical vibration. The vibrator is installed on the listening device such that a lower surface of the vibrator is disposed at a position facing an ear cartilage in a state where the listening device is worn on an ear, and a first mechanical impedance of the elastic members between the vibrator and the housing is set smaller, at a frequency of 200 Hz to 1000 Hz, than twice a second mechanical impedance, with which the vibrator is loaded, of the ear cartilage.
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公开(公告)号：US09228930B2
公开(公告)日：2016-01-05
申请号：US14357119
申请日：2012-11-16
Applicant: RION Co., Ltd.
Inventor： Junichi Motoyoshi , Takashi Iwakura
Abstract: An apparatus that is able to measure a viscosity and a density directly within a short time with a small amount of sample, which has been difficult for existing vibratory viscometer. The end part of an oscillator is formed in a shape, such as a sphere, whose resistance by a fluid can be logically derived, and the viscosity and the density of a fluid are calculated based on a predefined mechanical impedance and on an amplitude ratio and a phase difference of accelerations in the cases the oscillator is in the air and is in the fluid.
Abstract translation: 一种能够在短时间内直接用少量样品测量粘度和密度的装置，这对现有的振动粘度计来说是困难的。 振荡器的端部形成为诸如球体的形状，其流体的阻力可以被逻辑地导出，并且基于预定义的机械阻抗和振幅比计算流体的粘度和密度，并且 振荡器在空气中并处于流体的情况下的加速度的相位差。
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公开(公告)号：USD938595S1
公开(公告)日：2021-12-14
申请号：US29705397
申请日：2019-09-11
Applicant: RION CO., LTD.
Designer： Takashi Iwakura , Akihiro Soeta , Kei Koyama
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