Method for reducing noise of equipments based on control of fan rotate speed

A noise reduction and fan speed technology, applied in pump control, mechanical equipment, non-variable pumps, etc., can solve the problems of fan speed control, unsatisfactory effect of equipment noise, and low accuracy of fan speed control. The effect of safe heat dissipation and reducing equipment noise

Inactive Publication Date: 2003-10-08
HUAWEI TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Since this method cannot control the fan speed according to the heat dissipation conditions of the key components of the equipment, the control accuracy of the fan speed is not high, and the effect of reducing the noise of the equipment is not ideal.

Method used

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  • Method for reducing noise of equipments based on control of fan rotate speed
  • Method for reducing noise of equipments based on control of fan rotate speed
  • Method for reducing noise of equipments based on control of fan rotate speed

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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0016] In the actual application of electronic and electrical equipment, the working environment of the equipment changes, so the fan of the equipment can adjust the speed while ensuring the effective heat dissipation of the equipment according to the change of the application environment of the equipment, thereby reducing the noise of the equipment. Lower fan speed can be reduced. Generally speaking, the speed, flow, and wind pressure of the fan change with the change of the fan voltage. Therefore, the fan speed, air flow, and wind pressure can be controlled by controlling the fan voltage, thereby controlling the noise of the device. In the process of removing heat from the equipment, the cooling air passes over the hot surface of the device or circuit board, and the two exchange heat. The temperature of the cold air is raised by heating, and...

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Abstract

This invention discloses a method for reducing equipment noise based on controlling the rotating speed of fan to distribute temp detection points for monitoring instruments temp at all the key instruments of the equipment and design temp control zone of ensuring normal operation of equipment and alarming temp, when any one of all temp detection points is higher than the top limit of alarming or the control temp zone, the fan works at high speed, or it works at low speed, if temp of equipment is lower than the bottom limit of control temp zone.

Description

technical field [0001] The invention relates to a method for reducing noise of electrical or electronic equipment, in particular to a method for reducing equipment noise by controlling the fan speed in the equipment. Background technique [0002] With the development of electronic technology, the increase in the integration of electrical and electronic equipment has led to an increase in power consumption, making the heat dissipation problem of the equipment more and more prominent. In order to make the equipment work reliably, a heat dissipation device needs to be provided in the equipment, and the design of the heat dissipation device of the equipment usually has a large redundancy. In addition, considering that the equipment may have abnormal system operating voltage or partial failure of the cooling system during actual operation, it is necessary to have a certain degree of redundancy when designing the cooling device. The heat dissipation device in the equipment usuall...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D27/00
Inventor 司丽
Owner HUAWEI TECH CO LTD
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