公开(公告)号：US20030112994A1

公开(公告)日：2003-06-19

申请号：US10315181

申请日：2002-12-10

Applicant: STAR MICRONICS CO., LTD.

Inventor： Yoshio Imahori ,  Hiroshi Fujinami ,  Yoshiharu Oishi ,  Takahiro Sone

IPC: H04R025/00 ,  H04R001/02 ,  H04R001/00 ,  H04R009/06 ,  H04R011/02

CPC classification number: H05K3/325 ,  H04R9/02

Abstract: An electroacoustic transducer adapted to be mounted on a printed circuit board in which a coil spring is accommodated and supported in a cylindrical recess of a frame while it is fixed to neither a terminal plate nor the frame. Particularly, a protruding pin of the coil spring is passed through a though hole of the terminal plate to allow a leading portion of the protruding pin to be hooked thereon. When the electroacoustic transducer is mounted on the printed circuit board, any horizontal displacement between the compressed spring and the printed circuit board would not cause stress concentration on the coil spring since the coil spring is onlly horizontally shifted in the cylindrical recess until a coil portion of the coil spring hits against the wall of the cylindrical recess.

Abstract translation: 一种电声换能器，其适于安装在印刷电路板上，其中螺旋弹簧被容纳并支撑在框架的圆柱形凹部中，同时固定到端子板或框架。 特别地，螺旋弹簧的突出销穿过端子板的通孔，以允许突出销的引导部分钩在其上。 当电声换能器安装在印刷电路板上时，压缩弹簧和印刷电路板之间的任何水平位移不会引起螺旋弹簧上的应力集中，因为螺旋弹簧在圆柱形凹槽中水平移位，直到线圈部分 螺旋弹簧撞击圆柱形凹槽的壁。