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公开(公告)号：US11651883B2
公开(公告)日：2023-05-16
申请号：US17340557
申请日：2021-06-07
CPC分类号： H01F7/206 , B66C1/06 , H01F7/0257 , H01F7/04 , H01F7/17 , H01F2007/208
摘要： A switchable permanent magnetic unit is disclosed. The unit comprises: a housing, first and second permanent magnets, and a conductive coil. The first magnet is mounted within the housing and the second magnet is rotatable between first and second positions and mounted within the housing in a stacked relationship with the first magnet. The unit generates a first level of magnetic flux at a workpiece contact interface when the second magnet is in the first position and a second level of magnetic flux at the interface when the second magnet is in the second position, the second level being greater than the first level. The conductive coil is arranged about the second magnet and generates a magnetic field. A component of the conductive coil's magnetic field is directed from S to N along the second magnet's N-S pole pair when the second magnet is in the first position.
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公开(公告)号：US11031166B2
公开(公告)日：2021-06-08
申请号：US16618690
申请日：2018-06-08
摘要： A switchable permanent magnetic unit is disclosed. The unit comprises: a housing, first and second permanent magnets, and a conductive coil. The first magnet is mounted within the housing and the second magnet is rotatable between first and second positions and mounted within the housing in a stacked relationship with the first magnet. The unit generates a first level of magnetic flux at a workpiece contact interface when the second magnet is in the first position and a second level of magnetic flux at the interface when the second magnet is in the second position, the second level being greater than the first level. The conductive coil is arranged about the second magnet and generates a magnetic field. A component of the conductive coil's magnetic field is directed from S to N along the second magnet's N-S pole pair when the second magnet is in the first position.
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公开(公告)号：US10746957B2
公开(公告)日：2020-08-18
申请号：US16091559
申请日：2016-04-05
申请人： Tomohiko Osaka , Norikazu Kudo
发明人： Tomohiko Osaka , Norikazu Kudo
摘要： A lens driving device according to the present invention is a lens driving device that includes an auto-focus coil and an auto-focus magnet and that moves a movable auto-focus unit including the auto-focus coil in the direction of an optical axis relative to a fixed auto-focus unit including the auto-focus magnet by using a driving force of a voice coil motor constituted of the auto-focus coil and the auto-focus magnet. The fixed auto-focus unit includes a case formed of a non-magnetic material and having a rectangular shape in plan view and a base on which the case is fixed. The auto-focus magnet has the shape of a flat plate disposed on a side face of the case, and at least one of the four side faces of the case is a non-magnet-disposed face, on which the auto-focus magnet is not disposed.
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公开(公告)号：US20200185137A1
公开(公告)日：2020-06-11
申请号：US16618690
申请日：2018-06-08
摘要： A switchable permanent magnetic unit is disclosed. The unit comprises: a housing, first and second permanent magnets, and a conductive coil. The first magnet is mounted within the housing and the second magnet is rotatable between first and second positions and mounted within the housing in a stacked relationship with the first magnet. The unit generates a first level of magnetic flux at a workpiece contact interface when the second magnet is in the first position and a second level of magnetic flux at the interface when the second magnet is in the second position, the second level being greater than the first level. The conductive coil is arranged about the second magnet and generates a magnetic field. A component of the conductive coil's magnetic field is directed from S to N along the second magnet's N-S pole pair when the second magnet is in the first position.
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公开(公告)号：US2966064A
公开(公告)日：1960-12-27
申请号：US72331758
申请日：1958-03-24
申请人： CAROL R METCALF
发明人： COURTNEY JAMES T
CPC分类号： H02K7/065 , F16H2025/127 , H01F7/145 , H01F7/17 , Y10T74/18568
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公开(公告)号：US11521773B2
公开(公告)日：2022-12-06
申请号：US16392938
申请日：2019-04-24
发明人： Norbert Seltner , Stefan Buschmann , Stefan Bauer
摘要： A pneumatic solenoid valve includes a fluid connector, a magnet coil which extends along a coil axis, a yoke arranged on the magnet coil, and an armature movable relative to the yoke and which extends along an armature axis and which is formed for opening and closing the fluid connector. The armature can assume three different switching positions. In the first switching position, the armature and coil axes are arranged parallel to one another and the armature completely closes off the fluid connector. In the second switching position, the armature is rotated about an axis of rotation, such that the armature axis and the coil axis assume an angle with respect to one another and the armature partially opens the fluid connector. In the third switching position, the armature is in a state axially displaced in relation to the first switching position, such that the fluid connector is completely open.
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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：US10940506B2
公开(公告)日：2021-03-09
申请号：US16086980
申请日：2017-03-23
发明人： Jai Hi Cho , Shin Young Kim , Dae Keun Yoon , Joong Jae Lee , Bum Jae You
摘要： Disclosed is an actuator generating haptic sensations, the actuator having a spherical rotor driven by a magnetic force vector created around the same, a stator having a space corresponding in shape to the spherical rotor defined therein to allow the spherical rotor to be positioned in the space and having a portion of an upper part of the spherical rotor exposed, at least three rotation-driving coils formed in the stator at a given distance from each other to provide the magnetic force vector to the spherical rotor, and a driving unit independently controlling electric current supplied to each of the rotation-driving coils to create the magnetic force vector.
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公开(公告)号：US10522278B2
公开(公告)日：2019-12-31
申请号：US15766214
申请日：2016-09-21
发明人： Michael Beuschel , Markus Ziegelmeier , Stefan Bauer , Alexander Kerler , Martin Kolbinger , Holger Fernengel
摘要： Disclosed is a pneumatic solenoid valve comprising an air chamber with multiple air connections which can be connected via multiple switching positions of the valve by interconnecting the air chamber. The valve comprises a magnetic coil, a yoke arranged on the coil, and an armature arranged about the yoke and able to move relative to the yoke, all within the air chamber. When the coil is energized, the magnetic force generated rotates the armature about a single axis of rotation against a restoring force, until the magnetic force corresponds to the restoring force. When the armature rotates, the size of at least one overlapping region between the yoke and the armature changes, wherein an air gap is formed between the yoke and the armature. The distance of the air gap between the yoke and the armature remains substantially constant in the direction of rotation of the armature.
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公开(公告)号：US20190107684A1
公开(公告)日：2019-04-11
申请号：US16091559
申请日：2016-04-05
申请人： Tomohiko OSAKA , Norikazu KUDO
发明人： Tomohiko OSAKA , Norikazu KUDO
摘要： A lens driving device according to the present invention is a lens driving device that includes an auto-focus coil and an auto-focus magnet and that moves a movable auto-focus unit including the auto-focus coil in the direction of an optical axis relative to a fixed auto-focus unit including the auto-focus magnet by using a driving force of a voice coil motor constituted of the auto-focus coil and the auto-focus magnet. The fixed auto-focus unit includes a case formed of a non-magnetic material and having a rectangular shape in plan view and a base on which the case is fixed. The auto-focus magnet has the shape of a flat plate disposed on a side face of the case, and at least one of the four side faces of the case is a non-magnet-disposed face, on which the auto-focus magnet is not disposed.
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