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    SPEAKER DEVICE WITH BISTABLE ACTIVE VENT
    2.
    发明公开
    SPEAKER DEVICE WITH BISTABLE ACTIVE VENT 审中-公开

    公开(公告)号：EP4387266A1

    公开(公告)日：2024-06-19

    申请号：EP23217139.7

    申请日：2023-12-15

    申请人： GN Hearing A/S

    发明人： Christensen, René

    IPC分类号： H04R1/10

    CPC分类号： H04R2460/1120130101 ,  H04R1/1016 ,  H04R1/1041

    摘要： A speaker device configured to be worn at least partially in a user's ear canal. The speaker device comprises a speaker and an active vent to reduce occlusion of the ear canal. The active vent comprises a passage adapted to provide fluid communication between the ear canal and the user's surroundings when the speaker device is positioned in the ear canal. The active vent comprises a blocking mechanism having a closed state in which the blocking mechanism at least partially blocks the passage, and an open state in which the blocking mechanism blocks the passage less than in the closed state. Wherein the active vent further comprises a bistable device adapted to hold the blocking mechanism in the open state and in the closed state. Where the bistable device is unstable when the blocking mechanism is between the open and the closed state. Where the bistable arrangement comprises a bulging element.