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Fan speed control method, device and cooling method for projection system

A technology of fan speed and control method, applied in pump control, pump device, non-variable-capacity pump, etc., can solve problems such as inability to cool down electronic equipment and affect the performance of electronic equipment, achieve accurate fan speed value, ensure performance, and achieve Precisely tuned effects

Active Publication Date: 2018-03-27
QINGDAO HISENSE LASER DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a fan speed control method, device, and heat dissipation method for a projection system, which are used to solve the problem that the fan speed control method in the prior art cannot cool down the electronic equipment in time and affect the performance of the electronic equipment

Method used

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  • Fan speed control method, device and cooling method for projection system
  • Fan speed control method, device and cooling method for projection system
  • Fan speed control method, device and cooling method for projection system

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Embodiment 1

[0030] figure 1 It is a schematic flowchart of a fan speed control method according to an embodiment of the present invention.

[0031] see figure 1 , each step of the fan speed control method in the embodiment of the present invention is completed by the fan speed control device, and the method includes:

[0032] S101: Obtain the fan speed, total heat generation, total heat dissipation of the electronic device in the nth time period, and the air outlet air temperature of the electronic device in the n+1 time period; where n is greater than or equal to 1 Integer; the fan includes an air inlet fan and an air outlet fan, the air inlet fan is installed in the air inlet, the air outlet fan is installed in the air outlet, and the fan speed includes the air inlet fan RPM and / or RPM of the outlet fan;

[0033]Specifically, an air inlet fan is installed at the air inlet of the electronic device, and an air outlet fan is installed at the air outlet. In order to ensure the pressure ...

Embodiment 2

[0068] image 3 It is a schematic diagram of the frame structure of the fan control device according to the embodiment of the present invention.

[0069] see image 3 , the fan speed control device 50 in the embodiment of the present invention includes:

[0070] The acquisition module 310, acquires the fan speed, air temperature at the air inlet, air temperature at the air outlet, total heat generation of the electronic device in the nth time period, and the air temperature at the air outlet of the electronic device in the n+1 time period ; Wherein, n is an integer greater than or equal to 1; the fan includes an air inlet fan and an air outlet fan, the air inlet fan is installed in the air inlet, and the air outlet fan is installed in the air outlet, so The fan speed includes the speed of the air inlet fan and / or the speed of the air outlet fan;

[0071] A processing module 320, configured to determine the electronic device at the nth time period according to the fan speed,...

Embodiment 3

[0102] An embodiment of the present invention also provides a projection system. Figure 4 It is a schematic structural diagram of a projection system according to an embodiment of the present invention. In a possible implementation manner, the fan rotation speed control method and device in the embodiments of the present invention may be used in the projection system.

[0103] see Figure 4 , the projection system includes a light source device 10, a wavelength conversion device 20, an air inlet fan 30, an air outlet fan 40, and a fan speed control device 50 in each of the above device embodiments. The light source device 10 is used to emit projection laser light, the wavelength conversion device 20 is used to convert the projection laser light into light of different wavelengths, and the fan speed control device 50 is used to control the air inlet fan 30 and the air outlet The speed of the fan 40 is adjusted. The fan speed control device 50 executes the fan speed control ...

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Abstract

The invention provides a fan rotating speed control method and device and a heat dissipating method of a projection system. The method comprises the steps of obtaining a fan rotating speed, a heating total quantity and a heat dissipating total quantity in the nth time period and an air outlet air temperature in the n+1th time period; determining a predicted fan rotating speed in the n+1th time period according to the heating total quantity and the heat dissipating total quantity in the nth time period and the air outlet air temperature in the n+1th time period; and determining the fan rotating speed in the n+1th time period according to the fan rotating speed in the nth time period and the predicted fan rotating speed and a preset rotating speed adjusting threshold in the n+1th time period. The fan rotating speed control method and device and the projection system can be used for adjusting the fan rotating speed before the temperature rises through controlling the heat accumulation in electronic equipment.

Description

technical field [0001] The invention relates to the field of electronic products, in particular to a method and device for controlling the rotational speed of a fan and a heat dissipation method for a projection system. Background technique [0002] When electronic devices (such as computers, laser projectors, etc.) work, they usually generate a lot of heat in the system. The internal temperature of the system is too high, which will damage the performance of electronic equipment. Therefore, a fan needs to be installed in the electronic device for heat dissipation. If the fan speed is too slow, it will cause poor heat dissipation performance and affect the performance of electronic equipment. If the fan speed is too fast, it will increase the noise generated during the operation of the electronic equipment and waste system resources. Therefore, it is necessary to quickly and accurately control the rotational speed of the fan in the electronic device. [0003] The common f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D25/08F04D27/00
CPCF04D25/082F04D27/004
Inventor 王晨星
Owner QINGDAO HISENSE LASER DISPLAY CO LTD
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