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A control apparatus and method for starting fan

A control device and start-up control technology, which is applied in the computer field, can solve the problems of fans not starting up and high noise, and achieve the effect of avoiding noise

Inactive Publication Date: 2007-04-25
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Although such a method can reduce the noise to a certain extent, it will bring about the problem of selecting the starting intensity. If the selected starting intensity is too strong, the noise will be very high; if the selected starting intensity is too low, the fan may not be able to start. Especially when the fan has been used to a certain lifespan, dust or aging may make the fan require more strength to start up. Once it cannot be started, it may cause more serious consequences

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  • A control apparatus and method for starting fan
  • A control apparatus and method for starting fan
  • A control apparatus and method for starting fan

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Embodiment Construction

[0035] A fan starting device and method of the present invention will be further described in detail below in conjunction with accompanying drawings 1-3.

[0036] In the embodiment, all use the central processing unit (CPU) fan as the fan of the control device and method for fan activation of the present invention to illustrate the realization of the present invention, but fans of other parts inside the computer can also be used as the fan of the fan activation of the present invention. The fan of the control device and method does not affect the realization of the present invention, and at the same time, the present invention is not limited to the start-up control of the CPU fan.

[0037] As shown in Figure 1, the fan starting device of this embodiment includes:

[0038] The rotational speed reading device 2 is used to read the rotational speed of the CPU fan 3;

[0039] The setting device 4 includes control variables such as driving voltage Vj, setting time T and setting sp...

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PUM

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Abstract

An apparatus for controlling a fan's activation and method thereof comprises: a rotational speed read means(2); a setting means(4) including three controlling value of driving strength, setting time and setting rotational speed; a controlling means(1) connected with the setting means(4), the rotational speed read means(2) and the fan(3), which controls to activate the fan in accordance with the driving strength set by the setting means(4) and receives the fan's rotational speed in a predetermined timing, and determines whether to output the controlling signal to the setting means(4) by comparing the rotational speed with the setting speed, then the setting means(4) resetting the fan's driving strength and enable the fan to be activated by the strength reset . When a computer system is powered on, it can revolve the fan without huge noise.

Description

technical field [0001] The invention relates to the field of computers, in particular to a control device and method for starting a fan in a computer cooling system. Background technique [0002] At present, the performance of computers is getting higher and higher, and the speed is getting faster and faster, so a large amount of heat energy is generated. This high-temperature heat energy must be discharged from the computer in time, otherwise it will seriously affect the performance of computing performance, and may even seriously damage computer components. And further crash the computer. [0003] The main way for computer system to dissipate heat is fan heat dissipation. Generally speaking, increasing the size and speed of the fan improves the heat dissipation effect of the fan. However, noise will also be generated during the rotation of the fan. Increasing the size and speed of the fan also improves the cooling effect of the fan. Computer noise. Therefore, in the comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/20G06F9/445
Inventor 张建辉
Owner LENOVO (BEIJING) LTD