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    • 4. 发明申请
    • INVERTED LOUDSPEAKERS
    • 反转的扬声器
    • WO1998002017A1
    • 1998-01-15
    • PCT/SE1997001209
    • 1997-07-03
    • NOKIA AUDIO & ELECTRONICS ABCARLSSON, Mikael
    • NOKIA AUDIO & ELECTRONICS AB
    • H04R09/04
    • H04R9/025H04R9/06
    • The invention relates to an electromagnetic converter for reproducing sound as well as to a method for assembling an electromagnetic converter. The converter comprises a so called inverted loudspeaker consisting of voice coil means (1), a magnetic circuit (5-6, 8-11) and a diaphragm (2) which are to be assembled in a basket (4). The magnetic circuit comprises a pre-magnetisable magnet (10). There can also be two pre-magnetisable magnet disks (5, 10) of opposite polarisation on either side of a magnet core in two parts (6, 11). In order to join the core parts (6, 11) with great precision, male and female guiding means (6:1, 11:1) are arranged on the core parts (6, 11).
    • 本发明涉及一种用于再现声音的电磁转换器以及用于组装电磁转换器的方法。 转换器包括一个所谓的反向扬声器,它由音圈装置(1),一个磁路(5-6,8-11)和一个隔膜(2)构成,这些组合在一个篮子(4)中。 磁路包括可预磁化的磁体(10)。 在两个部分(6,11)中,也可以在磁芯的任一侧上存在两个具有相反极化的预磁化磁体盘(5,10)。 为了以高精度接合芯部(6,11),在芯部(6,11)上布置有阳,阴引导装置(6:1,11:1)。