Laminated piezoelectric element and electroacoustic transducer

    公开(公告)号:US12075211B2

    公开(公告)日:2024-08-27

    申请号:US17946825

    申请日:2022-09-16

    摘要: Provided are a laminated piezoelectric element and an electroacoustic transducer capable of obtaining high piezoelectric characteristics and easily ensuring an electric contact to an electrode layer. A plurality of layers of piezoelectric films, each of which is formed by laminating a first protective layer, a first electrode layer, a piezoelectric layer, a second electrode layer, and a second protective layer in this order, are laminated. Each of the piezoelectric layers is polarized in a thickness direction. In each of the piezoelectric films, the first electrode is disposed on an upstream side in a polarization direction of the piezoelectric layer, and the second electrode is disposed on a downstream side. Each of the plurality of piezoelectric films has a cemented portion which is cemented to an adjacent piezoelectric film and a protruding portion which is not cemented to the adjacent piezoelectric film and in which at least the first electrode layer and the first protective layer or the second electrode layer and the second protective layer protrude from the cemented portion toward the outside in a plane direction. At the protruding portion of each of the piezoelectric films, at least one of a first contact, to which the first electrode layers of the piezoelectric films are electrically connected to each other, or a second contact, to which the second electrode layers of the piezoelectric films are electrically connected to each other, is formed.

    Board end connector and connector assembly

    公开(公告)号:US12074395B2

    公开(公告)日:2024-08-27

    申请号:US18145679

    申请日:2022-12-22

    IPC分类号: H01R13/627 H01R24/60

    CPC分类号: H01R13/6271 H01R24/60

    摘要: A board end connector and a connector assembly. The board end connector comprises a board end insulating body, a terminal module, and a housing. The board end insulating body comprises a board end plugging surface and a plugging slot. The plugging slot is disposed on the board end plugging surface and comprises two interference sidewalls which are oppositely disposed. The terminal module is disposed in the board end insulating body. The housing is disposed on one side of the board end insulating body. A plugging bump member is provided on one side of the housing. The plugging bump member is disposed in the plugging slot. An interfering bump is provided on at least one side of the plugging bump member. The interfering bump interferes with at least one of the two interference sidewalls to increase the holding force between the housing and the board end insulating body.

    Electrical connector with stop function

    公开(公告)号:US12074393B2

    公开(公告)日:2024-08-27

    申请号:US17579091

    申请日:2022-01-19

    发明人: Bin Huang Rongzhe Guo

    摘要: An electrical connector includes an insulating body, a number of first conductive terminals and a metal shell. The insulating body includes a first butting protrusion having a first slot. The metal shell is assembled to the insulating body along an assembling direction. The metal shell includes a top wall, a bottom wall, two side walls and a partition wall. The metal shell includes a first receiving cavity for receiving a first mating plug. The metal shell further includes an installation opening extending downwardly to receive the insulating body. The electrical connector includes a first stop portion provided on the first mating protrusion and adapted for stopping further insertion of the first mating plug.