US 2014/0180484 A1Published application

Fan noise and vibration elimination system

AssigneeAsia Vital Components (China) Co., Ltd.

InventorTe-Chung Wang

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Abstract

A fan noise and vibration elimination system includes a sound wave sensor, a vibration sensor, a computing controller, a sound wave generator and a vibration generator. The sound wave sensor and the vibration sensor respectively receive noise and vibration produced by a fan during operation thereof to generate corresponding sound wave detection signal and vibration detection signal to the computing controller. Based on the received sound wave detection signal and vibration detection signal, the computing controller generates a sound wave cancel-out signal and a vibration cancel-out signal to the sound wave generator and the vibration generator, respectively, for the latter to generate a phase-inverted sound wave and a reverse vibration frequency to cancel the noise and the vibration produced by the operating fan.

Claims8

Dependent claims

A fan noise and vibration elimination system applied to a fan, comprising:

a sound wave sensor being arranged in the fan for receiving noise produced by the fan during operation thereof and correspondingly generating a sound wave detection signal;
a vibration sensor being arranged in the fan for detecting vibration produced by the fan during operation thereof and correspondingly generating a vibration detection signal;
a computing controller being electrically connected to the sound wave sensor and the vibration sensor for receiving the sound wave detection signal and the vibration detection signal and correspondingly generating a sound wave cancel-out signal and a vibration cancel-out signal;
a sound wave generator being electrically connected to the computing controller for receiving the sound wave cancel-out signal and correspondingly generating a phase-inverted sound wave for canceling the noise produced by the fan;
and
a vibration generator being electrically connected to the computing controller for receiving the vibration cancel-out signal and correspondingly generating a reverse vibration frequency for canceling the vibration produced by the fan.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/726,182Filed 23 Dec 2012
Published: 26 Jun 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

F16F 15/002
Suppression of vibrations in systems ; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion: characterised by…
F04D 25/08
Units comprising pumps and their driving means: the working fluid being air, e.g. for ventilation
F04D 29/665
Sound attenuation: by means of resonance chambers or interference
F16F 15/00
Suppression of vibrations in systems