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    능동소음제어 기능을 갖는 팬 디바이스
    3.
    发明公开
    능동소음제어 기능을 갖는 팬 디바이스 无效
    具有主动噪声衰减功能的风扇装置

    公开(公告)号：KR1020020055288A

    公开(公告)日：2002-07-08

    申请号：KR1020000084710

    申请日：2000-12-28

    申请人： 엘지전자 주식회사

    发明人： 윤정현

    IPC分类号： G10L21/0208 ,  G06F1/20 ,  F01P5/02

    摘要： PURPOSE: A fan device having an active noise attenuating function is provided to fix an anti-noise speaker and a microphone on a series of ducts in order, and to minimize impact of external variables on a series of sound-emitting paths formed between the anti-noise speaker and the microphone, thereby making fixed patterns of the sound-emitting paths. CONSTITUTION: A case(11) having a series of receiving spaces is built in an optional equipment. A fan block(13) is quickly rotated by an external force, and emits heat generated by a driving of the equipment. A duct(12) is extended along an inner wall of the case, being exposed outside of the case, and supplies sound-emitting paths of a noise outputted from the fan block in the state of being connected to the fan block. An anti-noise speaker(15) mounted on one spot of the duct is connected to the duct, and monitors the size of a noise passing through the anti-noise speaker to generate/output a series monitoring signals reflecting the monitored result. A controller(14) is electrically connected to the anti-noise speaker and a microphone(16), and controls an anti-noise output state of the anti-noise speaker in reference to the monitoring signals.

    摘要翻译： 目的：提供具有主动噪声衰减功能的风扇装置，以将抗噪声扬声器和麦克风固定在一系列导管上，并且最小化外部变量对形成在防反射面之间的一系列发出声音的影响 - 扬声器和麦克风，从而制作出声发射路径的固定图案。 构成：在可选设备中建有具有一系列接收空间的情况（11）。 风扇块（13）通过外力迅速旋转，并且发射由设备的驱动产生的热量。 管道（12）沿着壳体的内壁延伸，暴露在壳体外部，并且在连接到风扇块的状态下提供从风扇块输出的噪声的发光路径。 安装在管道一个点上的防噪声扬声器（15）连接到管道，并且监视通过抗噪声扬声器的噪声的大小以产生/输出反映监测结果的串联监视信号。 控制器（14）电连接到抗噪声扬声器和麦克风（16），并且参考监视信号来控制抗噪声扬声器的抗噪声输出状态。