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公开(公告)号：US20240235354A1
公开(公告)日：2024-07-11
申请号：US18334345
申请日：2023-06-13
发明人： Xin Jin , Fan Zhang , Wei Song , Ronglin Linghu
摘要： A vibrating motor includes a housing defining an accommodating space, a vibrating unit accommodated in the accommodating space, an elastic piece elastically suspending the vibrating unit, and a driving assembly accommodated in the housing. The driving assembly drives the vibrating unit to vibrate. The vibrating unit includes a mass block and a rotor fixed to the mass block. The elastic piece and the mass block are integrally formed through stamping. A position precision of the elastic piece is high, which improves a consistency of the vibrating motor, reduces a stress fluctuation of the elastic piece in a vibrating state, and reduces a possibility of fracture and reliability failure thereof. Moreover, two elastic portions disposed on two sides of the elastic piece are consistent, symmetry of a rotor system is improved, a swing degree of the vibrating motor is reduced, and a performance and a yield level thereof are improved.
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公开(公告)号：US11801587B2
公开(公告)日：2023-10-31
申请号：US17177919
申请日：2021-02-17
发明人： Fu-Hsiang Chung , Hong Fang Chen , Shih-Wei Hung
CPC分类号： B25B21/004 , H02K7/145 , H02K33/16 , B25B21/002
摘要： The invention is an electric commutating ratchet tool comprising: a head; a ratchet mechanism with a rotating member and a latch member; the rotating member is capable of rotating, the latch member is capable of displacing and controlling rotation direction of the rotating member; and a commutating device with a commutating member, a magnetic driving member and a magnetic actuating unit; the commutating member is capable of displacing to abut against the latch member; the magnetic actuating unit is opposite to the magnetic driving member, either the magnetic actuating unit or the magnetic driving member is disposed on the commutating member; the magnetic actuating unit is at least one electromagnet; magnetic direction is changed through each of the electromagnets, so that the magnetic driving member is magnetically driven to change a position of the latch member.
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公开(公告)号：US11515774B2
公开(公告)日：2022-11-29
申请号：US16995713
申请日：2020-08-17
发明人： Xudong Yan , Yunhao Jin , Pengfei Zhang
摘要： The present disclosure discloses a vibration motor including a fixing frame, a suspending frame, an iron core, a drive coil, an elastic support and a magnetic steel assembly. The magnetic steel assembly includes a first magnetic steel, a second magnetic steel and a third magnetic steel that are superimposed in order. Polarity directions of the first magnetic steel and third magnetic steel are parallel with a central axis of the drive coil. A side of the first magnetic steel that the side facing the second magnetic steel has the same polarity with a side of the third magnetic steel that the side facing the second magnetic steel. The vibration motor can generate two magnetic loops whose magnetic forces increases drive force of the vibration motor.
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公开(公告)号：US11418099B2
公开(公告)日：2022-08-16
申请号：US17561953
申请日：2021-12-26
申请人： Yuki Takahashi , Chikara Sekiguchi , Shigeyuki Shimomura , Daisuke Kodama , Yuta Yoshii , Yasutaka Kitamura , Shigenori Inamoto
发明人： Yuki Takahashi , Chikara Sekiguchi , Shigeyuki Shimomura , Daisuke Kodama , Yuta Yoshii , Yasutaka Kitamura , Shigenori Inamoto
IPC分类号： H02K33/06
摘要： A vibration actuator has: a fixing body; a movable body; and first and second elastic support parts disposed to sandwich the movable body in the vibration direction and configured to movably support the movable body with respect to the fixing body by elastic deformation, wherein the movable body includes: a core provided to both sides of a magnet of the movable body and having an opening; and spring stoppers disposed between the magnet and the first elastic support part and between the magnet and the second elastic support part; and wherein the spring stoppers are each fixed such that one end is fixed to one of the first or second elastic support part and such that another end is fixed by insertion into the opening and abutment on a surface of the movable body core facing the one of the first or second elastic support part.
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公开(公告)号：US20220094252A1
公开(公告)日：2022-03-24
申请号：US17420316
申请日：2019-12-30
发明人： Do Jin KIM , Dong Joon SIM , Sung Ho LEE
IPC分类号： H02K33/06
摘要： An actuator is proposed. A housing and a housing cap constitute an exterior of the actuator, and a driving pin is installed by passing through an inner space of the housing such that the driving pin moves rectilinearly. A permanent magnet and an outer iron core are stacked and installed at the inner surface of the housing, that is, in the inner space. The permanent magnets and the outer iron core are stacked such that a set of permanent magnet and outer iron core in which the permanent magnet is stacked at each of opposite sides of one outer iron core.
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公开(公告)号：US11235481B2
公开(公告)日：2022-02-01
申请号：US15950837
申请日：2018-04-11
摘要： An oscillatory linear actuator includes: an output movable element which is reciprocated by a periodically varying magnetic field and performs work on an object; and a vibration absorbing movable element which is reciprocated at a phase opposite to a phase of the output movable element and reduces vibration of the oscillatory linear actuator. The vibration absorbing movable element is lighter in weight than the output movable element.
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公开(公告)号：US11211858B2
公开(公告)日：2021-12-28
申请号：US16476340
申请日：2017-10-25
发明人： Masaki Koyama , Shuhei Nagata , Naoyuki Oohata , Kan Kobayashi , Yoshinori Kawai
摘要： An object of the present invention is to provide a linear motor and a compressor which are effective against a non-fixed structure in which end portions of a resonant spring are not fixed and are capable of restraining loads in an up-down direction and a left-right direction which act on a slider. A linear motor includes a slider (2) which is driven in a first direction, a resonance spring (400) which is capable of vibrating in the first direction, and a permanent magnet (210) which is provided at the slider (2) and is magnetized in a second direction perpendicular to the first direction. The linear motor includes a bearing (480) that is movable against both forces of a force in the second direction and a force in a third direction perpendicular to the first direction and the second direction, and an elastic-body support member (450) which connects the resonant spring (400) and the bearing (480) to each other.
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公开(公告)号：US20210328491A1
公开(公告)日：2021-10-21
申请号：US17271614
申请日：2019-08-28
申请人： Minebea Mitsumi Inc.
发明人： Yuki TAKAHASHI , Chikara SEKIGUCHI , Shigeyuki SHIMOMURA , Daisuke KODAMA , Yuta YOSHII , Yasutaka KITAMURA , Shigenori INAMOTO
IPC分类号： H02K33/06
摘要： This vibration actuator has: a stationary body having a coil; a movable body having a magnet disposed radially inside the coil; and an elastic support part for supporting the movable body so that the movable body can move relative to the stationary body. The stationary body has a coil holding part. The coil holding part has, on the inner diameter side of the coil, a coil protection wall part. The elastic support part has at least two or more plate springs bridged between the coil holding part and the movable body so as to sandwich the movable body in a vibration direction. In order that the movable body does not come into contact with the coil holding part when not vibrating and when vibrating, the plate springs support the movable body so that the movable body is movable in the vibration direction.
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公开(公告)号：US11052553B2
公开(公告)日：2021-07-06
申请号：US15952535
申请日：2018-04-13
摘要： An oscillatory linear actuator includes an electromagnet that changes a magnetic field periodically, a first movable body, a second movable body, a holder, and a coupling spring. The first movable body is disposed on one side in the first direction of the electromagnet, includes a permanent magnet, and acts on a target object. The permanent magnet reciprocates in a second direction intersecting with the first direction by the electromagnet. The second movable body is juxtaposed to the first movable body and reciprocates in the second direction. The holder holds the first and second movable bodies to provide space between the first and second movable bodies and the electromagnet and to allow the first and second movable bodies to move in the second direction. The coupling spring is disposed on one side in the first direction of the holder and couples the first movable body and the second movable body.
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公开(公告)号：US10819203B2
公开(公告)日：2020-10-27
申请号：US16311071
申请日：2017-05-02
IPC分类号： H02K33/06 , H02K33/16 , H02K41/035 , H02K3/46
摘要： A linear actuator is provided that has a configuration capable of inhibiting contact between an inner core and a plate spring that is connected to the inner core and an outer core, and which is realized by a configuration that is easy to assemble. A stator is arranged in an opening section of a through-hole in the inner core, and has a spacer through which a shaft passes. An outer frame section of the plate spring is connected to the outer core, and a fixed section of the plate spring is connected to the inner core through the spacer in a state in which the shaft passes therethrough. The spacer includes a penetration section having an insertion hole which the shaft is inserted through, and restriction sections and which restrict a displacement of a predetermined amount or more of the plate spring to the inner core side.
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