发明公开
US20240276887A1 DEVICE
审中-公开
- 专利标题: DEVICE
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申请号: US18563731申请日: 2022-05-13
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公开(公告)号: US20240276887A1公开(公告)日: 2024-08-15
- 发明人: Wolfgang Wallnöfer , Jockum Lönnberg , Johannes Burger
- 申请人: TDK Electronics AG
- 申请人地址: DE München
- 专利权人: TDK Electronics AG
- 当前专利权人: TDK Electronics AG
- 当前专利权人地址: DE München
- 优先权: DE 2021113843.4 2021.05.28
- 国际申请: PCT/EP2022/063009 2022.05.13
- 进入国家日期: 2023-11-22
- 主分类号: H10N30/88
- IPC分类号: H10N30/88 ; G01L1/16 ; H10N30/20 ; H10N30/30 ; H10N30/50
摘要:
In an embodiment a device includes a piezoelectric multilayer element having a top surface and being configured to change its extension in a first direction in response to an applied voltage, a mechanical amplifying element having an end portion fixed to the top surface of the piezoelectric multilayer element and an active portion movable relative to the piezoelectric multilayer element, wherein the mechanical amplifying element is configured such that the active portion is movable in a second direction perpendicular to the first direction when an extension of the piezoelectric multilayer element changes, the second direction being parallel to a surface normal of the top surface and a mechanical stop limiting a distance by which the active portion is movable towards the top surface.
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