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公开(公告)号：US10312788B2
公开(公告)日：2019-06-04
申请号：US15412865
申请日：2017-01-23
摘要： A linear vibration motor is disclosed. A linear vibration motor includes a housing with an accommodation space, a main magnetic circuit system accommodated in the housing, and a plurality of elastic components each including a first elastic component and a second elastic component separated and opposite to each other. The first elastic component and the second elastic component are electrically connected with an exterior circuit. The motor further includes a vibration module suspended by the elastic components and including a weight connected to the elastic components and a voice coil connected to the elastic components. The voice coil is disposed around the main magnetic circuit system and comprises an inlet terminal electrically connected with the first elastic component and an outlet terminal electrically connected with the second elastic component.
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公开(公告)号：US20190165662A1
公开(公告)日：2019-05-30
申请号：US16313416
申请日：2017-05-24
发明人： Masaya ENDO
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.
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公开(公告)号：US10284066B2
公开(公告)日：2019-05-07
申请号：US15403405
申请日：2017-01-11
发明人： Dong Huang , Jinquan Huang , Zhilin Chai , Na Wu
摘要： A vibration motor includes a housing; a fixed component; an elastic connecting piece; and a vibrating component comprising a counterweight suspended by the elastic connecting piece. One of the fixed component and the vibrating component includes a coil, and the other includes a magnet. The vibration motor further includes a damping piece fixed on the counterweight and facing the elastic connecting piece. One of the counterweight and the damping piece is provided with a slot and a glue dispersing slot connecting with the slot, and a projecting part formed on the other of the counterweight and the damping piece for matching with the slot.
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公开(公告)号：US10277154B2
公开(公告)日：2019-04-30
申请号：US15698559
申请日：2017-09-07
申请人： Apple Inc.
发明人： Arman Hajati , Hari Vasudevan
IPC分类号： H02P25/032 , H02P29/68 , H02K11/25 , H02K33/16 , H02K11/215
摘要： In an embodiment of a system for closed-loop control of a linear resonant actuator, a system processor coupled to a magnetic field sensor is configured to: receive a magnetic field sensor signal from a channel coupling a magnetic field sensor and the system processor; receive measurements of actuator current and actuator voltage from drive electronics; receive a temperature signal from a linear resonant actuator, the temperature signal indicating a temperature of the magnetic field sensor; calculate a first estimate of mass position using the magnetic field sensor signal, actuator current and a magnetic model; calculate an estimate of coil resistance based on the temperature signal, the actuator current, the actuator voltage and a thermal model; and calculate a second estimate of mass position and an estimate of mass velocity based on the first estimate of mass position, the actuator current, the actuator voltage and the estimated coil resistance.
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公开(公告)号：US20190115816A1
公开(公告)日：2019-04-18
申请号：US16090347
申请日：2017-03-24
申请人： Yuki TAKAHASHI , Yasutaka KITAMURA , Masaharu KAGAMI , Chikara SEKIGUCHI , Kazutaka SAKAGUCHI , Shigenori INAMOTO
发明人： Yuki TAKAHASHI , Yasutaka KITAMURA , Masaharu KAGAMI , Chikara SEKIGUCHI , Kazutaka SAKAGUCHI , Shigenori INAMOTO
摘要： An actuator has: an affixed section having a coil; a first mobile section that is elastically held and disposed so as to allow movement in the axial direction inside one end of the coil, and has a first magnet magnetized in the axial direction of the coil and disposed on one end in the axial direction; and a second mobile section that is elastically held and disposed so as to allow movement in the axial direction inside another end of the coil, and has a second magnet magnetized in the axial direction and disposed on the other end in the axial direction. The first and second magnets are disposed such that identical magnetic poles are in the same direction in the axial direction, and the first and second mobile sections move in opposite directions along the same axis when a current is applied to the coil.
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公开(公告)号：US10247827B2
公开(公告)日：2019-04-02
申请号：US16001952
申请日：2018-06-07
申请人： Apple Inc.
发明人： Alexander Sromin , Naftali Chayat , Raviv Erlich , Yuval Gerson , Alexander Shpunt , Raviv Weber
摘要： Optical apparatus (64) includes a stator assembly (47), which includes a core (78, 90, 91) containing an air gap and one or more coils (80, 92, 94, 116, 120) including conductive wire wound on the core so as to cause the core to form a magnetic circuit through the air gap in response to an electrical current flowing in the conductive wire. A scanning mirror assembly (45, 83, 85, 130) includes a support structure (68), a base (72), which is mounted to rotate about a first axis relative to the support structure, and a mirror (46), which is mounted to rotate about a second axis relative to the base. At least one rotor (76, 132) includes one or more permanent magnets, which are fixed to the scanning mirror assembly and which are positioned in the air gap so as to move in response to the magnetic circuit. A driver (82) is coupled to generate the electrical current in the one or more coils.
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公开(公告)号：US10236760B2
公开(公告)日：2019-03-19
申请号：US15025425
申请日：2013-09-30
申请人： Apple Inc.
摘要： In an embodiment, an actuator or circuit includes elements moveably coupled via bearings positioned between curved grooves. The bearings and the curves may exert a restorative force to return the elements to an original position after movement and may be spherical, cubic, cylindrical, and/or include gears that interact with groove gears. In some embodiments, an electrical coil may be coplanar with a surface of an element and a hard magnet may be positioned in the center and be polarized to stabilize or destabilize the element with respect to another element. In various embodiments, a magnetic circuit includes an element with an electrical coil wrapped in multiple directions around the element. In some embodiments, an actuator includes attraction elements and exertion of force causes an element to approach, contact, and/or magnetically attach to one of the attraction elements.
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公开(公告)号：US10164511B2
公开(公告)日：2018-12-25
申请号：US15075758
申请日：2016-03-21
发明人： Hongfu Xu , Zhilin Chai , Na Wu , Fanghua Ling
摘要： A vibration motor is disclosed. The vibration motor includes a housing, a substrate engaging with the housing, a vibration unit received in the housing, an elastic member suspending the vibration unit, and a coil assembly interacting with the vibration unit. The elastic member includes a second fixing part having a first segment with a first width, a second segment having a second width smaller than the first width for forming a step, and the vibration unit includes a latch corresponding to and engaging with the step for positioning the elastic member.
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公开(公告)号：US10161392B2
公开(公告)日：2018-12-25
申请号：US15288829
申请日：2016-10-07
申请人： APEX MEDICAL CORP.
发明人： Ming-Han Lin , Chiu-Yu Yeh , Wen-Hsien Lin , Chih-Tsan Chien
IPC分类号： H02K33/12 , F04B35/04 , F04B45/027 , H02K33/16 , F04B39/12 , H01F7/08 , H01F7/10 , H01F7/14 , H02K1/14
摘要： Disclosed is an electromagnetic vibratory pump, comprising a first C-shaped winding and a first magnet. The first C-shaped winding comprises a first coil and a first electromagnetizable member. The first coil covers the first electromagnetizable member, which comprises a first main body, a first leg and a second leg. The legs are connected to the first main body, and the distance between the legs is reduced from a first width to a second width from the first main body. The first magnet swings in a circular tangential direction. A point of tangency of the circular tangential direction is configured apart from the first leg and the second leg respectively by a first minimum distance. The first minimum distance is less than a half of the second width. The first magnet is driven by the first magnetic line of force to move in the first circular tangential direction, and the first magnet is driven by the second magnetic line of force to move in the second circular tangential direction.
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公开(公告)号：US10158277B2
公开(公告)日：2018-12-18
申请号：US15111137
申请日：2015-06-29
申请人： G2HYSONIC CO., LTD.
发明人： Se Jun Chun
摘要： The present invention relates to a haptic actuator, and the vibrating body includes a first magnet and a second magnet that are disposed on one end of the coil member in the vertical direction to be spaced apart from each other; a third magnet and a second magnet that are disposed on the other end of the coil member in the vertical direction to be spaced apart from each other; a first magnetic body that is mounted on one end of the first magnet and the third magnet in the horizontal direction; a second magnetic body that is mounted on the other end of the second magnet and the fourth magnet in the horizontal direction; and the first weight and the second weight that is mounted the first magnetic body and the second magnetic body respectively, the polarities of the first magnet and the second magnet having a north pole in the direction facing each other and a south pole in the opposite direction thereof, and the polarities of the third magnet and the forth magnet having a north pole in the direction facing each other and a south pole in the opposite direction thereof, a magnetic field lines emanating from the north poles of the first magnet, the second magnet, the third magnet, and the fourth magnet being to be converged to the coil member.
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