Intelligent cooling fan device and fan rotation speed controlling method thereof

a technology of intelligent cooling fan and fan rotation speed, which is applied in the direction of machines/engines, mechanical equipment, engine starters, etc., can solve the problems of system crash, hardware device damage, affecting hardware device, etc., and achieve the effect of greatly simplifying the program architecture required by software and effectively improving the performance of the fan
US20090155045A1Inactive Publication Date: 2009-06-18INVENTEC CORP
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
INVENTEC CORP
Publication Date
2009-06-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

A fan cooling device and a method of controlling a fan rotation speed are provided. The fan cooling device includes a thermo sensor, a thermo monitor unit, a processing unit, a driving unit, and a fan. The thermo monitor unit compares the sensed result from the thermo sensor with at least one threshold, and decides whether or not to send an interrupt event according to the compared result. The processing unit executes an interrupt service according to the interrupt event, and then sets and outputs a value of the fan rotation speed. The driving unit drives the fan and controls the rotation speed of the fan according to the value of the fan rotation speed. The fan sends out a wind flow to reduce the internal temperature of a computer system or a CPU.
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Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This application claims the priority benefit of Taiwan application serial no. 96147648, filed on Dec. 13, 2007. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.BACKGROUND OF THE INVENTION

[0002] 1. Field of the Invention

[0003] The present invention generally relates to a temperature control device and a method thereof, and more particularly, to a cooling fan device and a method of controlling a fan rotation speed.

[0004] 2. Description of Related Art

[0005] With the rapid development of technology, computer hardware has been developed rapidly in recent years, for example, central processing units (CPUs) commonly used by hardware devices such as desktop computers, laptop computers, and even servers and workstations. The clock speed of the CPUs becomes increasingly high, so as to cater to the mass's requirements on processing an increasingly large amount of data...

Claims

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