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    • 2. 发明申请
    • MOUNTING OF THE COIL IN AN ELECTROACOUSTIC TRANSDUCER
    • 电感传感器中的线圈安装
    • WO0074436A3
    • 2001-07-12
    • PCT/NL0000374
    • 2000-05-31
    • MICROTRONIC NEDERLAND BVHALTEREN AART ZEGER VANWILMINK ENGBERTDOLLEMAN HENDRIKHAL PAUL CHRISTIAAN VAN
    • VAN HALTEREN AART ZEGERWILMINK ENGBERTDOLLEMAN HENDRIKVAN HAL PAUL CHRISTIAAN
    • H04R9/04H05K1/18H04R11/00
    • H04R9/04H05K1/182
    • An electroacoustic transducer comprising a case accommodating an armature with at least two armature legs (6); a coil (9) with an air gap, which is fitted around one armature leg (6a); a magnetic element (7, 8) with an air gap which is likewise fitted around the one armature leg, with the air gap of the coil and that of the magnetic element being located in line with each other; a diaphragm (4); and a connecting element (5) which couples a free end of the one armature leg to the diaphragm; and a printed circuit board (14) with terminals (15) for the wires of the coil and for external connections. According to the invention, the coil is attached to the printed circuit board by an end face thereof which is located essentially perpendicularly to the longitudinal axis of the air gap, and the printed circuit board is provided with at least one recess adapted to cooperate with a leg of the armature. Through these measures, the coil can be positioned symmetrically with respect to the armature leg with very high accuracy.
    • 一种电声换能器,包括容纳具有至少两个电枢腿(6)的电枢的壳体; 具有气隙的线圈(9),其围绕一个电枢腿(6a)安装; 具有气隙的磁性元件(7,8),其同样装配在一个电枢支腿周围,线圈的气隙和磁性元件的空气间隔彼此一致; 隔膜(4); 以及连接元件(5),其将所述一个电枢腿的自由端连接到所述隔膜; 以及印刷电路板(14),其具有用于线圈的导线和用于外部连接的端子(15)。 根据本发明,线圈通过其端面附接到印刷电路板,其端面基本上垂直于气隙的纵向轴线,并且印刷电路板设置有至少一个适于与 电枢的腿。 通过这些措施,线圈可以非常高的精度相对于电枢腿对称地定位。