Haptic Actuator Including Flexure Bearing

    公开(公告)号:US20220233951A1

    公开(公告)日:2022-07-28

    申请号:US17716935

    申请日:2022-04-08

    Applicant: Apple Inc.

    Abstract: A haptic actuator may include a housing, at least one coil carried by the housing, and a field member having opposing first and second sides. The haptic actuator may also include a respective at least one flexure bearing mounting each of the first and second sides of the field member to be reciprocally movable within the housing responsive to the at least one coil. Each flexure bearing may include two diverging arms joined together at proximal ends and having spaced distal ends operatively coupled between adjacent portions of the field member and the housing. The two diverging arms may each have a reduced size medial portion relative to respective proximal and distal ends.

    Haptic actuator including thermally coupled heat spreading layer and related methods

    公开(公告)号:US10886821B2

    公开(公告)日:2021-01-05

    申请号:US16235091

    申请日:2018-12-28

    Applicant: Apple Inc.

    Abstract: A haptic actuator may include a housing that includes a ferromagnetic material having a first heat conductance, and a coil carried by the housing in a medial portion thereof and generating waste heat when electrically powered. The haptic actuator may also include a field member movable within the housing responsive to the coil. The field member may include at least one permanent magnet establishing a magnetic path with the housing. A heat spreading layer may be thermally coupled to the housing adjacent the coil. The heat spreading layer may have a second heat conductance greater than the first heat conductance to spread the waste heat from the coil to adjacent portions of the housing.

    HAPTIC LOCOMOTION USING WIDE-BAND ACTUATOR
    15.
    发明申请

    公开(公告)号:US20190098122A1

    公开(公告)日:2019-03-28

    申请号:US15713555

    申请日:2017-09-22

    Applicant: Apple Inc.

    Abstract: The disclosed embodiments of haptic locomotion use one or more actuators to: 1) determine the properties of contact surfaces to improve various applications that use haptic locomotion; 2) automatically improve power transfer efficiency during wireless charging or cellular or wireless signal reception; 3) increase device accessibility for visually or hearing impaired users; 4) improve speaker and microphone performance; 5) protect a free falling mobile device from impact damage by orienting the mobile device to a low-risk orientation during free fall, or by driving the mobile device away from a high-risk orientation during free fall; and 6) control asymmetric surface friction using a directional magnetic field provided by an actuator to improve haptic locomotion in a desired direction of travel.

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