Noise abatement system of fan

A technology to eliminate system and fan noise, applied to instruments, electrical digital data processing, digital data processing components, etc., can solve problems such as no effect, high unit cost that does not meet the requirements, and damage to electronic parts

Inactive Publication Date: 2009-08-05
ASIA VITAL COMPONENTS SHENZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Changes in the size design of mechanical components or improved fan materials for passive noise suppression will increase costs, and will have no effect on low-frequency noise
[0006] In order to reduce the noise of the fan, additional passive fan blades or frames are installed to make the resonanc

Method used

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  • Noise abatement system of fan
  • Noise abatement system of fan

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Embodiment Construction

[0014] The above-mentioned purpose of the present invention and its structural and functional characteristics will be described according to the preferred embodiments of the accompanying drawings.

[0015] The present invention is a fan noise cancellation system, see figure 1 , figure 2 It is a preferred embodiment of the present invention. As shown in the figure, the system is a standalone (Standalone) system, and its application method is active noise control (Active Noise Control, referred to as ANC), which is aimed at the low-frequency noise of the fan Do processing, and do not need to be used with a personal computer for auxiliary use, in order to achieve cost savings; wherein the system includes at least a digital signal microprocessor 1 (Micro Digital Signal Processor, Micro-DSP for short), a sensing unit 15 (Sensor ) and a loudspeaker 16 (Loudspeaker), wherein the sensing unit 15 can be an error microphone 151 (Error Microphone), which is a feedback signal for detect...

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Abstract

The invention relates to a fan noise eliminating system which at least comprises a loudspeaker, a sensor unit and a data signal microprocessor, wherein the data signal microprocessor is provided with a signal amplifying unit, a signal conversion unit and a combination controller, the signal amplifying unit is provided with a prime amplifier and a post amplifier, the prime amplifier is electrically connected with the sensor unit, the post amplifier is electrically connected with the loudspeaker, the signal conversion unit is provided with an analog/digital converter and a digital/analog converter, the analog/digital converter is electrically connected with the prime amplifier, the digital/analog converter is electrically connected with the post amplifier, the combination controller is electrically connected with the analog/digital converter and the digital/analog converter, therefore, noise waves generated by the fan can be mutually cancelled with reverse sound waves generated by the loudspeaker to effectively reduce noise and ensure good radiating effect.

Description

technical field [0001] The invention relates to a noise elimination system, especially a fan noise elimination system. Background technique [0002] Due to the rapid development of information technology, electronic products (such as: computers, etc.) have occupied an increasingly important position in people's life and work, and have become an indispensable tool. Generally, in order to improve the operating performance of the computer, the power consumed by the electronic components (for example: central processing unit, Central Processing Unit) working inside the computer is increased. Therefore, the thermal effect generated by the electronic components is also greater, and relatively The higher the temperature inside the computer, the easier it is for the working curve to drift, resulting in unstable operation of electronic parts, easy to make the computer malfunction, and even cause the computer to crash, and in serious cases, it will burn the electronic parts working in...

Claims

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Application Information

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IPC IPC(8): F04D29/66F04D25/08G06F1/20
Inventor 苏富诚廖元良廖翊宏李志仁
Owner ASIA VITAL COMPONENTS SHENZHEN CO LTD
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