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    • 10. 发明授权
    • Speaker unit for headphones
    • 耳机扬声器单元
    • US4399334A
    • 1983-08-16
    • US252442
    • 1981-04-09
    • Tsutomu KakiuchiYoshiyuki Kamon
    • Tsutomu KakiuchiYoshiyuki Kamon
    • H04R9/06H04R1/10H04R5/033H04R7/26H04R9/02
    • H04R9/02H04R1/1008H04R5/033
    • A speaker unit for headphones including a magnetic circuit which has a magnetic gap and including a diaphragm which is moveable to generate sound in response to energy applied to a coil wound on a bobbin which is connected to the diaphragm and mounted within the magnetic gap and including a frame for supporting the magnetic circuit and the diaphragm and a protecting means mounted at the front of the diaphragm and having projections so as to engage the diaphragm near the region where the bobbin is mounted so as to limit the maximum motion of the diaphragm and the protecting means formed with openings such that the protector prevents the bobbin from moving completely out of the magnetic gap. The invention is applicable to speaker units for open air type headphones, for example.
    • 一种用于耳机的扬声器单元,包括具有磁隙的磁路,并且包括响应于施加到缠绕在与所述隔膜连接的线轴上并安装在所述磁隙内的线圈的线圈的能量而产生声音的振动膜,并且包括: 用于支撑磁路和隔膜的框架和安装在隔膜前部的保护装置,并且具有突起,以便在隔膜安装的区域附近接合隔膜,从而限制隔膜的最大运动和 保护装置形成有开口,使得保护器防止线轴完全移出磁隙。 本发明适用于例如露天式耳机的扬声器单元。