Flexible PCB voice coil connector
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United States of America Patent
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-
Nov 4, 2008
Grant Date -
Nov 17, 2005
app pub date -
May 11, 2005
filing date -
May 11, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In an electroacoustic transducer, a pair of coil terminals elongating from a voice coil are electrically connected to a pair of terminal members attached to a frame via a flexible printed circuit board, respectively. According to the configuration, even in a case where an electroacoustic transducer is used at a high sound pressure, breakage of the coil terminals hardly occurs. In the flexible printed circuit board, the width of an intermediate portion is set to be smaller than the widths of an end portion on the side of the coil terminals and an end portion on the side of the terminal members. Therefore, the flexibility of the intermediate portion can be enhanced, whereby transmission of characteristic vibration of the flexible printed circuit board to a diaphragm, and stress concentration in the vicinity of the end portions are effectively suppressed.
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