CN101389203A - Fan heat radiation system - Google Patents

Abstract

The invention discloses a fan heat radiation system, which is arranged in an electronic device providing heat radiation airflow by a fan to remove dust carried by the airflow, and comprises: the input module is used for receiving a control instruction; the programmable logic module is electrically connected with the input module and used for judging the control instruction received by the input module so as to output a logic result according to the control instruction; and the static module is provided with a static filtering unit and a static control unit which is electrically connected with the static filtering unit and the programmable logic module, the static filtering unit is arranged adjacent to the fan to receive the airflow, and the static control unit applies static electricity to the static filtering unit according to a logic result transmitted by the programmable logic module so that the static filtering unit adsorbs dust carried by the airflow in a static way.

Description

Fan Cooling System

technical field

The invention relates to a fan heat dissipation system, in particular to a fan heat dissipation system applied to an electronic device that uses a fan to provide heat dissipation airflow and electrostatically absorbs the airflow fine dust.

Background technique

Most of the current electronic devices are light, thin and small, and the high speed and better performance of the electronic devices are emphasized. When the speed and performance of the electronic devices are improved, the temperature of the electronic devices is also relatively increased. Electronic parts are damaged due to high temperature. A common way to reduce the temperature of electronic equipment is to install a cooling fan to reduce the temperature inside the electronic equipment, suck in the cold air outside the electronic equipment, and let the cold air flow inside the electronic equipment to reduce the temperature. The temperature inside the electronic device.

However, when the cooling fan sucks in cold air, it also brings in dust around the electronic equipment. Moreover, due to the miniaturization of electronic equipment, the volume of the electronic equipment is reduced, and the density of electronic parts inside the electronic equipment is increased. Therefore, in the case of limited space and high density of electronic parts, the flow of cold air inside the electronic equipment is hindered. Flow, and the dust entrained by the cold air drawn by the fan is more likely to accumulate in a limited space, which will relatively reduce the heat dissipation effect of the electronic equipment. In severe cases, the accumulation of dust will cause short circuits of electronic parts, thus reducing the life of electronic equipment.

Therefore, how to improve the problem of poor heat dissipation caused by dust accumulation in the existing fan heat dissipation technology and the shortened service life of electronic parts of electronic equipment is a problem that needs to be considered urgently today.

Contents of the invention

In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a fan cooling system that electrostatically absorbs airflow dust at the fan airflow inlet of electronic equipment to prevent dust from invading the interior of the electronic equipment, thereby improving heat dissipation efficiency and eliminating Dust accumulates inside electronic equipment and causes short circuits in electronic parts.

In order to achieve the above object, the present invention provides a fan heat dissipation system, which is installed in an electronic device that uses a fan to provide heat dissipation airflow, so as to remove the dust entrained by the airflow. The fan heat dissipation system includes: an input module for receiving control commands; Programmable logic module, electrically connected to the input module, used to judge the control command received by the input module, so as to output the logic result according to the control command; and the electrostatic module, which has an electrostatic filter unit and is electrically connected to the electrostatic filter unit and the electrostatic control unit of the programmable logic module, the electrostatic filter unit is arranged adjacent to the fan to receive the airflow, and the electrostatic control unit applies static electricity to the electrostatic filter unit according to the logic result transmitted from the programmable logic module, so that the The electrostatic filter unit electrostatically absorbs the dust entrained by this airflow.

Compared with the existing fan heat dissipation technology, the fan heat dissipation system of the present invention can effectively prevent the dust entrained by the fan airflow from intruding into the electronic equipment, and it makes the electrostatic filter unit absorb the dust in the fan airflow through the electrostatic effect. In addition, through the input The module and the programmable logic module can realize the function of turning on and off the electrostatic dust removal function and selecting the dust removal intensity, which is convenient for the user to control the required dust removal effect and improve the cooling performance of the fan.

Description of drawings

Fig. 1 is a schematic block diagram of the fan cooling system of the present invention; and

FIG. 2 is a schematic diagram showing the configuration of the fan cooling system of the present invention applied to electronic equipment. Explanation of main component symbols

1 fan cooling system

10 fans

11 Electrostatic module

110 Electrostatic filter unit

111 Static control unit

12 Programmable logic modules

13 input module

2 electronic equipment

Detailed ways

The implementation of the present invention will be described below through specific specific examples. Please describe the specific examples of the present invention with reference to the accompanying drawings, so that those skilled in the art can easily understand the technical features and achieved effects of the present invention.

As shown in Figure 1, it is a schematic block diagram of the fan heat dissipation system of the present invention. When the cold air is guided into the interior of the electronic device through the air outlet, the dust carried by the cold air is effectively removed.

The fan cooling system 1 of this embodiment includes an electrostatic module 11 , a programmable logic module 12 and an input module 13 . The electrostatic module 11 includes an electrostatic filter unit 110 and an electrostatic control unit 111 electrically connected to the electrostatic filter unit 110. The electrostatic filter unit 110 is a mesh, such as a mesh, and the electrostatic filter unit 110 is located at the outlet of the fan 10. On the tuyere, and the air outlet is set towards the electronic parts inside the electronic device, the electrostatic filter unit 110 is used to block the air inlet of the fan 10 from absorbing the dust entrained by the cold air, so that the dust will not invade the inside of the electronic device. The electrostatic control unit 111 is used to apply static electricity to the electrostatic filter unit 110, so that the electrostatic filter unit 110 electrostatically absorbs dust entrained by the cold air sucked by the fan 10 through the air inlet, so as to effectively block dust from invading electronic equipment.

The magnitude of the static electricity applied by the static electricity control unit 111 executes the static electricity application according to the logic result transmitted from the programmable logic module 12, and the programmable logic module 12 generates the logic result according to the control instruction received by the input module 13 . Specifically, the input module 13 of this embodiment is, for example, a keyboard or a key group composed of a plurality of keys, which is used for the user to input on or off the dust removal function provided by the fan cooling system and for the user to input desired The control instruction of the selected dust removal intensity (that is, the magnitude of static electricity), the programmable logic module 12 is such as a complex programmable logic device (Complex Programmable LogicDevice; CPLD), in order to determine the control instruction received by the input module 13 , and drive the electrostatic control unit 111 to perform processing functions corresponding to the control instruction on the electrostatic filter unit 110 according to the judged logical result, such as turning on or off the electrostatic precipitator function or adjusting the magnitude of applied static electricity.

In the preferred embodiment of the fan heat dissipation system of the present invention, the electrostatic filter unit 110 is made of a mesh that can cover the fan and allow the fan airflow to pass through. In addition, the installation position of the electrostatic filter unit 110 is not shown in the figure As shown in 1, it is set outside the air outlet of the fan 10, but it can also be set at the air inlet of the fan 10, that is, there are different installation positions depending on the implementation type. In other words, the electrostatic filter unit 11 is configured A position close to the fan to receive the airflow is sufficient.

In order to better understand the configuration relationship between the fan cooling system of the present invention and the electronic equipment, please refer to FIG. The electrostatic filter unit 110 of 1 is arranged at the air outlet of the fan 10. Since the input module 13 is used for the user to input the control command for opening and closing the dust removal function provided by the fan cooling system or selecting the dust removal intensity, the present invention In a preferred embodiment of the fan cooling system, the input module 13 is exposed on the casing of the electronic device 2, so that the user can set the dust removal function. Through the electrostatic dust removal function provided by the fan heat dissipation system of the present invention, when the fan 10 absorbs cold air through the air inlet and guides the cold air to the inside of the electronic device 2 through the air outlet, the dust entrained by the cold air is effectively isolated without causing The dust intrudes into the electronic device 2 , thereby avoiding the short circuit of the electronic components caused by the accumulation of dust in the electronic device 2 .

However, the specific embodiments described above are only used to illustrate the characteristics and effects of the present invention, rather than to limit the scope of the present invention. Without departing from the spirit and technical scope of the present invention, any application of this Equivalent changes and modifications accomplished by the content disclosed in the invention should still be covered by the scope of the claims.

Claims (7)

1. fan radiating system, being located at fan provides in the electronic equipment of radiating airflow, and to get rid of the dust that this air-flow is carried secretly, this fan radiating system comprises:

Input module is in order to receive control command;

But the programmed logic module electrically connects this input module, in order to the control command of judging that this input module receives, with according to this control command output logic result; And

The static module, but have the electro static filtering unit and electrically connect this electro static filtering unit and the electrostatic control unit that is somebody's turn to do the programmed logic module, contiguous this fan of this electro static filtering configuration of cells is to accept this air-flow, but this electrostatic control unit is according to the logical consequence that this programmed logic module is transmitted this electro static filtering unit to be applied static, makes this electro static filtering unit adsorb the dust that this air-flow is carried secretly with electrostatic means.

2. fan radiating system according to claim 1, wherein, this electro static filtering unit is a net.

3. fan radiating system according to claim 1 and 2, wherein, the air outlet place of this fan is located in this electro static filtering unit.

4. fan radiating system according to claim 1 and 2, wherein, the air inlet place of this fan is located in this electro static filtering unit.

5. fan radiating system according to claim 1, wherein, this control command comprises unlatching, close the electrostatic precipitation function and select wherein one of dedusting intensity institute cohort group.

6. fan radiating system according to claim 1, wherein, but but should the programmed logic module be complexity program logic device (Complex Programmable Logic Device; CPLD).

7. fan radiating system according to claim 1, wherein, this input module is a keyboard.

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