SHAPE-MEMORY MATERIAL ACTUATORS
    21.
    发明公开

    公开(公告)号:US20240060480A1

    公开(公告)日:2024-02-22

    申请号:US18498595

    申请日:2023-10-31

    IPC分类号: F03G7/06

    CPC分类号: F03G7/06143 F03G7/062

    摘要: An actuator that includes a shell, a ring structure within the shell, a shape-memory material wire fixed at opposite points of the ring structure to extend in a first direction across a width of the ring structure, and a cooling fluid provided within the shell and in fluid communication with the shape-memory material wire. When the shape-memory material wire is heated, the shape-memory material wire contracts in the first direction to reduce the width of the ring structure and increases a height of the ring structure extending in a second direction perpendicular to the first direction.

    ARTIFICIAL MUSCLE ASSEMBLIES INCLUDING A CENTRAL ARTIFICIAL MUSCLE AND A PLURALITY OF INITIATING ACTUATORS

    公开(公告)号:US20230291332A1

    公开(公告)日:2023-09-14

    申请号:US17689400

    申请日:2022-03-08

    IPC分类号: H02N1/00 H01B3/44

    CPC分类号: H02N1/002 H01B3/445

    摘要: An artificial muscle assembly includes initiating actuators and an artificial muscle. The artificial muscle includes a housing including an electrode region and an expandable fluid region, and an electrode pair positioned in the electrode region. The electrode pair includes a first electrode and a second electrode fixed to respective first and second surfaces of the housing. At least one of the first electrode and the second electrode includes a central opening defining the expandable fluid region. The electrode pair is actuatable between a non-actuated state and an actuated state such that actuation from the non-actuated state to the actuated state directs a dielectric fluid into the expandable fluid region. Each initiating actuator is actuatable between a non-actuated state and an actuated state such that actuation from the non-actuated state to the actuated state applies a force against the electrode region of the artificial muscle.

    ASYMMETRIC ELECTRODE INSULATION FOR ARTIFICIAL MUSCLES

    公开(公告)号:US20220313420A1

    公开(公告)日:2022-10-06

    申请号:US17218287

    申请日:2021-03-31

    IPC分类号: A61F2/08 F03G7/00 B25J9/10

    摘要: An artificial muscle that includes a housing having an electrode region and an expandable fluid region, a dielectric fluid housed within the housing, an electrode pair positioned in the electrode region of the housing, the electrode pair including a first electrode and a second electrode, and an electrode insulator having one or more insulation layers. The electrode insulator is disposed on an inner electrode surface of the first electrode of the electrode pair. The second electrode includes a free inner electrode surface exposed to the dielectric fluid when the electrode pair is in a non-actuated state. The electrode pair is actuatable between the non-actuated state and an actuated state such that actuation from the non-actuated state to the actuated state directs the dielectric fluid into the expandable fluid region, expanding the expandable fluid region.