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公开(公告)号：US11329540B2
公开(公告)日：2022-05-10
申请号：US16369646
申请日：2019-03-29
Applicant: NIDEC SANKYO CORPORATION
Inventor： Masao Tsuchihashi , Tadashi Takeda , Hiroshi Kitahara
Abstract: An actuator may include a movable body; a support body; a connecting body arranged where the movable body and the support body face each other to contact both of the movable body and the support body; and a magnetic drive circuit. The magnetic drive circuit may include an air-core coil provided on a first-side member among the movable body and the support body; and a permanent magnet provided on a second-side member among the movable body and the support body to face the coil in a first direction, the magnetic drive circuit being configured to vibrate the movable body with respect to the support body in a second direction crossing the first direction. In the first-side member, the coil may be fixed by an adhesive to a surface of a plate-shaped coil holder on a first side in the first direction while an air-cores is directed in the first direction.
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公开(公告)号：US11264881B2
公开(公告)日：2022-03-01
申请号：US16627336
申请日：2018-06-11
Applicant: NIDEC SANKYO CORPORATION
Inventor： Masao Tsuchihashi , Tadashi Takeda , Hiroshi Kitahara
IPC: H02K33/16
Abstract: In a magnetic drive circuit of an actuator, a first yoke and a second yoke are disposed on both sides in a first direction across a coil, and a first magnet and a second magnet are fixed to the first yoke and the second yoke. The first yoke includes a first connecting plate part and a second connecting plate part that extend toward the second yoke. Thus, welding of the first connecting plate part and the second yoke and the second connecting plate part and the second yoke can be efficiently performed on a different side in the first direction (a side where the second yoke is located).
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公开(公告)号：US11070120B2
公开(公告)日：2021-07-20
申请号：US16499309
申请日：2018-03-23
Applicant: NIDEC SANKYO CORPORATION
Inventor： Hiroshi Kitahara , Tadashi Takeda , Masao Tsuchihashi
Abstract: An actuator is provided. In the actuator, a first magnetic drive circuit and a third magnetic drive circuit that vibrate a movable body in a second direction with respect to a support are provided respectively on both sides in a first direction. A second magnetic drive circuit that vibrates the movable body in a third direction with respect to the support is provided. The first magnetic drive circuit, the second magnetic drive circuit and the third magnetic drive circuit are arranged to be sequentially stacked from one side to the other side in the first direction.
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公开(公告)号：US12206308B2
公开(公告)日：2025-01-21
申请号：US17974542
申请日：2022-10-27
Applicant: NIDEC SANKYO CORPORATION
Inventor： Masao Tsuchihashi
Abstract: A movable body of an actuator includes a first yoke to which a first magnet facing a coil from a Z1 direction is fixed, and a second yoke to which a second magnet facing the coil from a Z2 direction is fixed. The portion of the first yoke to which the first magnet is fixed consists of two members: a first inner member and a first outer member. The portion of the second yoke to which the second magnet is fixed consists of two members: a second inner member and a second outer member. The portions surrounding both sides of the coil in the X direction bond first connecting plate portions of the first outer member and second connecting plate portions of the second outer member.
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公开(公告)号：US11411482B2
公开(公告)日：2022-08-09
申请号：US16499308
申请日：2018-03-23
Applicant: NIDEC SANKYO CORPORATION
Inventor： Hiroshi Kitahara , Tadashi Takeda , Masao Tsuchihashi
Abstract: An actuator comprising: a support body; a movable body which is movable with respect to the support body; and a drive mechanism structured to drive the movable body; wherein the drive mechanism comprises: a first magnetic drive circuit which comprises a first coil and a first magnet facing each other in a first direction and is structured to drive the movable body in a second direction perpendicular to the first direction; and a second magnetic drive circuit which comprises a second coil and a second magnet facing each other in the first direction at a position overlapping with the first magnetic drive circuit in the first direction, the second magnetic drive circuit being structured to drive the movable body in a third direction perpendicular to the first direction and intersecting the second direction.
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Patent Agency Ranking
公开(公告)号：US11323015B2
公开(公告)日：2022-05-03
申请号：US16499306
申请日：2018-03-23
Applicant: NIDEC SANKYO CORPORATION
Inventor： Hiroshi Kitahara , Tadashi Takeda , Masao Tsuchihashi
IPC: H02K33/10
Abstract: An actuator is provided. In order to reduce the planar area of an actuator, a first magnetic drive circuit and a third magnetic drive circuit that vibrate a movable body in an X direction with respect to a support are provided respectively on both sides, in a Z direction, of a second magnetic drive circuit that vibrates the movable body in a Y direction with respect to the support. The movable ranges, in the X direction and the Y direction, of the movable body with respect to the support are regulated by a stopper mechanism constituted between a first magnet and a first coil holder holding a first coil, a stopper mechanism constituted between a second magnet and a second coil holder holding a second coil, and a stopper mechanism constituted between a third magnet and a third coil holder holding a third coil.
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公开(公告)号：US10938287B2
公开(公告)日：2021-03-02
申请号：US16260424
申请日：2019-01-29
Applicant: NIDEC SANKYO CORPORATION
Inventor： Masao Tsuchihashi , Tadashi Takeda , Hiroshi Kitahara
Abstract: An actuator may include a supporting body; a movable body; a first magnetic drive circuit including a first coil and a first magnet disposed adjacent to each other in a first direction and driving the movable body in a second direction orthogonal to the first direction; and a second magnetic drive circuit including a second coil and a second magnet disposed adjacent to each other in the first direction and driving the movable body in a third direction orthogonal to the first direction and intersecting the second direction. The second coil and the second magnet may be disposed in alignment with the first magnetic drive circuit in the first direction. The supporting body may include a restraining member. A first elastic member may be in contact with both the movable body and the restraining member. A second elastic may be in contact with both the movable body the restraining member.
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公开(公告)号：US11283338B2
公开(公告)日：2022-03-22
申请号：US16499312
申请日：2018-03-23
Applicant: NIDEC SANKYO CORPORATION
Inventor： Hiroshi Kitahara , Tadashi Takeda , Masao Tsuchihashi
Abstract: Each of holders which holds a coil or a magnet used in a magnetic drive circuit, in a stacked manner in a first direction without causing rattling in an actuator (1), a first coil holder (65) of a first magnetic drive circuit (6), a second coil holder (75) of a second magnetic drive circuit (7), and a third coil holder (85) of a third magnetic drive circuit (8) are arranged in a stacked manner in a Z direction, and the first coil holder, the second coil holder, and the third coil holder are fastened in the Z direction by a restraining member (90). Thus, the first coil holder, the second coil holder, and the third coil holder can be arranged in a stacked manner in the Z direction without causing rattling. The restraining member is constituted by a first member (91) and a second member (92) having the same configuration, including size and shape.
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公开(公告)号：US11271465B2
公开(公告)日：2022-03-08
申请号：US16627338
申请日：2018-06-11
Applicant: NIDEC SANKYO CORPORATION
Inventor： Hiroshi Kitahara , Tadashi Takeda , Masao Tsuchihashi
Abstract: In the actuator, the viscoelastic members are arranged at positions at which the support body and the movable body face each other in the first direction, and the magnetic drive circuit drives the movable body in the second direction which crosses the first direction. The viscoelastic members connect the movable body and the support body together while having the thickness direction thereof in the first direction and extending in the second direction. Therefore, resonance caused when the movable body is vibrated can be restricted. Reproducibility of vibration acceleration corresponding to the input signals can be improved by utilizing the spring elements of the viscoelastic members in the shearing direction, thus enabling the actuator to vibrate with delicate nuances. Further, the viscoelastic members can be prevented from being pressed in the thickness direction and greatly deformed, therefore, preventing the gap between the movable body and the support body from greatly varying.
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公开(公告)号：US11217375B2
公开(公告)日：2022-01-04
申请号：US16627342
申请日：2018-06-11
Applicant: NIDEC SANKYO CORPORATION
Inventor： Masao Tsuchihashi , Tadashi Takeda , Hiroshi Kitahara
Abstract: In the actuator, the first end plate part of the first cover member in the support body is layered on one side in the first direction of the holder and faces the first yoke of the movable body from one side in the first direction. The second end plate part of the second cover member in the support body is layered on the other side in the first direction of the holder and faces the movable body from the other side in the first direction. Thus, the first viscoelastic member interposed between the movable body and the first end plate part in the first direction properly contacts with the movable body and the first end plate part. The second viscoelastic member interposed between the movable body and the second end plate part in the first direction properly contacts with the movable body and the second end plate part.
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