Fan rotary speed control system and method

Abstract

The invention relates to a fan speed control system and relative method, which is used in the electric device for adjusting the temperature of fan. Said system comprises: a temperature-range record module which at least records a fan first speed when its temperature is higher than said temperature range, and a fan second speed when its temperature is lower than the temperature range; a speed record module for recording the fan speed; a temperature detecting module for detecting the temperature and outputting temperature parameters after adjusting the temperature of heat radiation matter; and a judgment module for judging the relation between the output temperature parameters and the recorded temperature range to control the fan speed. The invention can avoid the system temperature vibration affecting the fan speed to significantly prolong the service life and reduce system noise.

Description

technical field [0001] The present invention relates to a fan speed control system and method, in particular to a fan speed control system and method based on a preset temperature range. Background technique [0002] With the rapid development of computer technology, computers have become an indispensable tool in people's daily life and work. Due to the continuous improvement of computer performance, the processing it performs becomes more complex, so the calculation speed of the central processing unit is also relatively improvement. The central processing unit will generate a large amount of heat under high-speed calculation, which will have a significant impact on the system. The light one may cause the system to crash, or even cause irreversible hardware damage to the system. Therefore, the heat dissipation of the system is increasingly affected. Pay attention to. [0003] The air-cooling heat dissipation method is the most common heat dissipation method in the industr...

AI Technical Summary

Problems solved by technology

After adding the temperature change Δt, the fan can maintain stability for a long time, but this method cannot completely solve the problem of frequent changes in the speed caused by temperature oscillations

As shown in the figure, when the system temperature change curve 20 is at the critical temperature value Ct 1 When vibrating nearby, the fan speed will still be adjusted frequently, forming a fan speed change line 22 and causing a sudden change in the speed 220 at the corresponding position, which seriously reduces the life of the fan

Images