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公开(公告)号：US11264158B2
公开(公告)日：2022-03-01
申请号：US16184024
申请日：2018-11-08
申请人： Ferric Inc.
发明人： Noah Sturcken , Ryan Davies , Michael Lekas
IPC分类号： H01F7/06 , H01F7/08 , H01F7/126 , H01F7/14 , B64C33/02 , H01L23/522 , H01L27/092 , H01F7/17 , B64C39/02
摘要： A ferromagnetic actuator is disposed between first and second semiconductor devices that include first and second inductors. Each inductor is disposed on top of a multilevel wiring structure. Current flows through the first inductor to generate a first magnetic field that attracts the ferromagnetic actuator towards the first inductor causing the ferromagnetic actuator to transition from a first state to a second state. In the second state, a portion of the ferromagnetic actuator is disposed closer to the first inductor than it is in the first state. Current flows through the second inductor to generate a second magnetic field that attracts the ferromagnetic actuator towards the second inductor causing the ferromagnetic actuator to transition from the first or second state to a third state. In the third state, a portion of the ferromagnetic actuator is disposed closer to the first inductor than it is in the first state.
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公开(公告)号：US11264157B2
公开(公告)日：2022-03-01
申请号：US16622854
申请日：2018-08-03
申请人： Tae Kwang Choi
发明人： Tae Kwang Choi
摘要： A magnetic force control device includes a first pole piece having an interaction surface, made of a ferromagnetic material, and configured to be in contact with an N pole of a permanent magnet, a second pole piece having an interaction surface, made of a ferromagnetic material, and configured to be in contact with an S pole of the permanent magnet or another permanent magnet different from the permanent magnet, rotary permanent magnet configured to be rotatable to define a first arrangement state in which an N pole thereof is magnetically connected to the second pole piece and an S pole thereof is magnetically connected to the first pole piece and a second arrangement state in which the N pole is magnetically connected to the first pole piece and the S pole is magnetically connected to the second pole piece.
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公开(公告)号：US11227711B2
公开(公告)日：2022-01-18
申请号：US16941827
申请日：2020-07-29
发明人： Amit Shah
摘要： A fluid flow control valve with swiveled & compensated stroke (100) comprising a solenoid coil assembly (60), a permanent magnet (181), a bridge mounted solenoid assembly (120), a compensated swivel fulcrum (150), a counterweight arrangement (160), and a base unit arrangement (180), wherein a slender cylindrical rod (70) of the compensated swiveled fulcrum (150) is non-rotatably trapped in a fulcrum receptacle (33) of a bridge (30), a compensating spring (85) continuously presses a pair of the plurality of spherical balls (80) against a conical surface (72) of the lender cylindrical rod (70), the bridge mounted solenoid assembly (120) swivels around an axis (121), an electric supply impressed at the electrical terminals of the solenoid coil assembly (60) generates a magnetic field and the solenoid coil assembly (60) moves in an arc (61), the swiveled valve with the compensated precision stroke (100) is mountable in any orientation. Such a valve is a small pre-stage valve with a sub-millimeter stroke, to a big valve of high energy.
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公开(公告)号：US10781937B2
公开(公告)日：2020-09-22
申请号：US15785568
申请日：2017-10-17
申请人： Sun Hydraulics, LLC
发明人： Andy Borja
摘要： An example actuator assembly includes a valve body having a body locating shoulder as a protrusion from an interior peripheral surface of the valve body, and an actuator having an end that is inserted into the valve body. The end has a first portion with a first diameter and a second portion with a second diameter that is larger than the first diameter, and the second portion includes a threaded region. A locating shoulder is between the first portion and the second portion of the end of the actuator arranged at a position where the first diameter changes to the second diameter. The locating shoulder mates with the body locating shoulder of the valve body when the actuator is inserted and screwed into the valve body to enable alignment of the valve body and the actuator.
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公开(公告)号：US20200059726A1
公开(公告)日：2020-02-20
申请号：US16529732
申请日：2019-08-01
发明人： Jiasheng Zhou , Long Zhang
摘要： A sounding device includes a holder, a magnetic circuit unit, and an elastic sheet fixing the magnetic circuit unit to the holder. The magnetic circuit unit includes a yoke, a main magnet fixed to the yoke, at least two auxiliary magnets disposed around two opposite sides of the main magnet, and an upper clamping plate respectively covering and fixed to the auxiliary magnets. One end of the elastic sheet is fixed to the holder, and the other end of the elastic sheet is fixed to the upper clamping plate.
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公开(公告)号：US20200045430A1
公开(公告)日：2020-02-06
申请号：US16524067
申请日：2019-07-28
发明人： Wei Song
摘要： The present disclosure provides a speaker having a magnetic conductive element including a lower magnetic conductive plate for carrying a magnet thereon and an upper magnetic conductive plate engaging with the lower magnetic conductive plate. The lower magnetic conductive plate includes a first oblique portion and a first horizontal portion extending from the first oblique portion both for increasing an outer diameter of the lower magnetic conductive plate. The upper magnetic conductive plate includes a second oblique portion and a second horizontal portion both for increasing an outer diameter of the upper magnetic conductive plate. The lower and upper magnetic conductive plates cooperatively form a receiving space for accommodating a suspension to support a coil assembly. The suspension is used for supporting the coil assembly for providing balanced vibration to the diaphragm.
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17.发明申请公开(公告)号：US20190310708A1
公开(公告)日：2019-10-10
申请号：US16008043
申请日：2018-06-14
申请人： PREH GMBH
发明人： TOBIAS BODENSTEIN
摘要： A touch-sensitive input device includes a support, an input part with a touch-sensitive input surface, an elastic device which bears the input part at the support, an electromagnetic actuator which acts between the input part and the support to produce a deflection of the input part out of a resting position, and control electronics. The electromagnetic actuator comprises a coil with a cavity, a core arranged at least in part in the cavity, and an armature arranged outside the cavity. The core generates a magnetic field defining a pole direction. The armature interacts with the magnetic field. The control electronics generate an electrical control signal for the coil to produce the deflection of the input part out of the resting position and to provide a maximum deflection of the input part. A duration of the electrical control signal is limited so as to provide, after the deflection, a haptic feedback.
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公开(公告)号：US10371278B2
公开(公告)日：2019-08-06
申请号：US15452663
申请日：2017-03-07
发明人： Matt Pellmann , Brian Heidemann
摘要： An electromagnetic actuator having a unitary pole piece arranged within and coupled to a housing is provided. The housing is coupled to the unitary pole piece such that a load on the unitary pole piece is reduced during assembly and/or installation of the electromagnetic actuator. The unitary pole piece is structured to reduce leakage past an armature slidably received within the pole piece.
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公开(公告)号：US20190206601A1
公开(公告)日：2019-07-04
申请号：US16295354
申请日：2019-03-07
发明人： Tomokuni WAUKE
摘要： A vibration generating device includes an electromagnet including a coil and a magnetic core around which the coil is wound; a permanent magnet; a casing to which the electromagnet or the permanent magnet is fixed; and an elastic body in which the electromagnet or the permanent magnet is held. The vibration generating device generates a vibration by relatively moving the electromagnet and the permanent magnet by energizing the coil. The casing has a polyhedral structure made of a plate material, and includes a first surface in which a gap portion is provided and another surface in which an extension portion is provided. The vibration generating device further includes a reinforcement portion that is formed by the extension portion extending from the another surface toward the first surface, thereby being fitted into the gap portion and flush with the first surface.
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20.发明申请公开(公告)号：US20190079585A1
公开(公告)日：2019-03-14
申请号：US16186669
申请日：2018-11-12
摘要： An electromagnetic feedback actuator for an operating element includes an electromagnet, a magnet armature, and a metal body. The electromagnet includes a magnetic coil and a magnetic core. The magnet armature is moveable relative to the electromagnet. The operating element includes an actuating element (e.g., touch surface, sensor surface). The magnet armature is mechanically coupled to the operating element to provide a force pulse to the operating element in response to contact with, or pressure actuation on, an actuating element of the operating element. The electromagnet is arranged in the metal body. The metal body, in integral fashion, forms the magnet armature, a magnet yoke for the magnetic core of the electromagnet, and a holder for the electromagnet. An arrangement includes at least one such electromagnetic feedback actuator coupled to an operating element.
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