公开(公告)号：US20230006528A1

公开(公告)日：2023-01-05

申请号：US17676073

申请日：2022-02-18

申请人： Apple Inc.

发明人： Jere C. Harrison ,  Alex J. Speltz ,  Xin Alice Wu

IPC分类号： H02K41/03 ,  H02K33/00

摘要： A double helix actuator is disclosed that includes a double helix coil wound around a movable proof mass that is enclosed within a magnetic structure. The double helix coil and the magnetic structure are arranged relative to each other so that the magnetic field generated by the entirety of the double helix coil contributes to a linear force direction of the actuator. The double helix actuator produces a greater linear force density compared to traditional racetrack coil actuators, where only a portion of the coil contributes to the linear force. The double helix actuator also produces torque in addition to linear force which allows the double helix to provide unique haptic sensations in a variety of applications.

公开(公告)号：US11258343B2

公开(公告)日：2022-02-22

申请号：US15985619

申请日：2018-05-21

申请人： Apple Inc.

发明人： Jere C. Harrison ,  Alex J. Speltz ,  Xin Alice Wu

IPC分类号： H02K41/03 ,  H02K33/00 ,  H02K35/04

摘要： A double helix actuator is disclosed that includes a double helix coil wound around a movable proof mass that is enclosed within a magnetic structure. The double helix coil and the magnetic structure are arranged relative to each other so that the magnetic field generated by the entirety of the double helix coil contributes to a linear force direction of the actuator. The double helix actuator produces a greater linear force density compared to traditional racetrack coil actuators, where only a portion of the coil contributes to the linear force. The double helix actuator also produces torque in addition to linear force which allows the double helix to provide unique haptic sensations in a variety of applications.

公开(公告)号：US10802592B2

公开(公告)日：2020-10-13

申请号：US16147321

申请日：2018-09-28

申请人： Apple Inc.

发明人： Jere C. Harrison ,  Xin Alice Wu ,  Sheng Liu ,  Yi-Heng Sen

IPC分类号： G06F3/01 ,  G06F3/046

摘要： Disclosed are embodiments of magnetic virtual springs for haptic systems. In an embodiment, a haptic system comprises: a magnetic housing having a surface with a surface profile; a mechanical spring system disposed in the housing, the mechanical spring system including one or more mechanical springs; a mass disposed within the housing and mechanically coupled to the mechanical spring system, the mass including or coupled to a magnet, the surface profile causing a magnetic force component to be generated in at least one direction that varies with the magnet position, the magnetic force component combining with a mechanical force component provided by the mechanical springs.

公开(公告)号：US20200103970A1

公开(公告)日：2020-04-02

申请号：US16147321

申请日：2018-09-28

申请人： Apple Inc.

发明人： Jere C. Harrison ,  Xin Alice Wu ,  Sheng Liu ,  Yi-Heng Sen

IPC分类号： G06F3/01 ,  G06F3/046

摘要： Disclosed are embodiments of magnetic virtual springs for haptic systems. In an embodiment, a haptic system comprises: a magnetic housing having a surface with a surface profile; a mechanical spring system disposed in the housing, the mechanical spring system including one or more mechanical springs; a mass disposed within the housing and mechanically coupled to the mechanical spring system, the mass including or coupled to a magnet, the surface profile causing a magnetic force component to be generated in at least one direction that varies with the magnet position, the magnetic force component combining with a mechanical force component provided by the mechanical springs.

公开(公告)号：US20190356210A1

公开(公告)日：2019-11-21

申请号：US15985619

申请日：2018-05-21

申请人： Apple Inc.

发明人： Jere C. Harrison ,  Alex J. Speltz ,  Xin Alice Wu

IPC分类号： H02K41/03

摘要： A double helix actuator is disclosed that includes a double helix coil wound around a movable proof mass that is enclosed within a magnetic structure. The double helix coil and the magnetic structure are arranged relative to each other so that the magnetic field generated by the entirety of the double helix coil contributes to a linear force direction of the actuator. The double helix actuator produces a greater linear force density compared to traditional racetrack coil actuators, where only a portion of the coil contributes to the linear force. The double helix actuator also produces torque in addition to linear force which allows the double helix to provide unique haptic sensations in a variety of applications.