公开(公告)号：US20230392707A1

公开(公告)日：2023-12-07

申请号：US17829932

申请日：2022-06-01

申请人： TangTring Seating Technology Inc.

发明人： Tsun-Hsiang WEN ,  Shih-Chung HSU ,  Jun XIE ,  Jian ZENG ,  Xian-Chang ZOU

IPC分类号： F16K31/02 ,  F16K31/524

CPC分类号： F16K31/025 ,  F16K31/52408

摘要： An air valve structure arranged on a base comprises an air plug and a state-switching component. The air plug is arranged in an air chamber in an axial direction. The air plug includes a closing state to close the air hole, and an opening state to open the air hole. The state-switching component comprises a driving member that links the air plug, a shape-memory alloy (SMA) wire connected with the driving member, and at least one conductive member connected with the SMA wire. The driving member exerts an acting force to the air plug based on a condition of electricity provided by the conductive member for the SMA wire. The direction of the acting force is non-parallel with the axial direction and the air plug is moved and changed between the closing state and the opening state by the acting force.