CN101193539A - Radiator with dust removal function - Google Patents

Abstract

The invention discloses a heat radiator with a dust removal function, which is used for removing dust on a heat radiating metal sheet and comprises a heat conduction assembly and a vibrator. The heat conduction assembly is provided with a plurality of metal sheets, and the vibrator can be directly or indirectly connected to the heat conduction assembly and is used for providing a vibration source to the metal sheets so as to shake off dust accumulated on the metal sheets through vibration. The vibrator is, for example, a piezoelectric element or an eccentric motor. In addition, the vibrator may be an ultrasonic generator with a thermally conductive assembly attachment for providing a non-contact source of vibration to the sheet metal.

Description

Radiator with dust removal function

technical field

The present invention relates to a radiator, and in particular to a radiator with dust removal function.

Background technique

In recent years, with the rapid development of computer technology, the running speed of the computer has been continuously improved, and the heating power of the electronic components inside the computer host has also been continuously increased. In order to prevent the electronic components inside the computer host from overheating, the electronic components will temporarily or permanent failure, must provide sufficient cooling performance to the electronic components inside the computer.

Generally speaking, a radiator is mainly composed of a fan, cooling fins and a heat pipe. The cooling fin group is arranged at the air outlet of the fan and connected with the heat pipe to absorb waste heat conducted by the heat pipe. The heat dissipation fin group is composed of a plurality of metal sheets arranged in parallel, and there is a certain gap between adjacent metal sheets to provide waste heat to dissipate into the air through convection. Therefore, when the fan is in operation, the cooling airflow can flow to the heat dissipation fin group through the air outlet, and pass through the gaps between the metal sheets, so that the waste heat can be discharged out of the body through convection, thereby reducing the working temperature of the internal electronic components.

It is worth noting that when the radiator is used for a long time, the dust in the air will gradually accumulate between the metal sheets of the radiator fin group. If it is not cleaned, once too much dust accumulates on the metal sheet, it will be difficult for the wind blown by the fan to remove the waste heat from the heat dissipation fin set, resulting in a significant reduction in the heat dissipation capacity of the heat sink.

Contents of the invention

The object of the present invention is to provide a heat sink with a dust removal function for removing the dust accumulated on the cooling fin assembly.

The invention provides a radiator with dust removal function, which includes a heat conduction component and at least one vibrator. The heat conduction component includes a plurality of metal sheets arranged in the same direction, and the vibrator is connected to the heat conduction component to provide a vibration source to the metal sheets.

The present invention proposes another radiator with dust removal function, which includes a heat conduction component and at least one vibrator. The heat conduction component includes a plurality of metal sheets arranged in the same direction, and the vibrator is arranged near the heat conduction component to provide a non-contact vibration source to the metal sheets.

According to an embodiment of the present invention, the vibrator includes a piezoelectric element, and the piezoelectric element is deformed to generate a vibration source.

According to an embodiment of the present invention, the vibrator includes an eccentric motor, and the eccentric motor rotates an eccentric element to generate a vibration source.

According to an embodiment of the present invention, the radiator further includes a controller coupled to the vibrator for controlling the vibrator to provide a vibration source. In addition, the controller may include a timer, and the timer is set to count the time when the vibrator provides the vibration source.

According to an embodiment of the present invention, the heat conduction component further includes at least one heat pipe. One end of the heat pipe is connected to the metal sheets, and the other end is connected to a heat source, so that the heat generated by the heat source is conducted to the metal sheets through the heat pipe.

According to an embodiment of the present invention, the heat sink further includes a fan assembly having an air outlet corresponding to the metal sheets for providing a cooling airflow passing between the metal sheets.

Because the present invention adopts the radiator with dust removal function, the dust on the metal sheet can be shaken off by the vibration of the vibrator. Since the heat sink can automatically clean the dust on the metal sheet regularly or irregularly, the airflow generated by the fan can quickly remove the waste heat from the metal sheet, thereby significantly improving the heat dissipation capacity of the heat sink.

In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments are exemplified below and described in detail with accompanying drawings.

Description of drawings

Fig. 1 is a schematic diagram of a radiator with dust removal function according to an embodiment of the present invention.

2 to 4 are schematic diagrams of implementing the present invention with different vibrators.

Detailed ways

Please refer to FIG. 1 , which is a schematic diagram of a radiator with dust removal function according to an embodiment of the present invention. The heat sink 100 mainly includes a heat conduction component 110 and at least one vibrator 120 , and the heat conduction component 110 provides heat dissipation for electronic components with high calorific value, so as to reduce the operating temperature of the electronic components inside the system. The heat conduction component 110 is generally made of high thermal conductivity metal such as copper and aluminum, which can be disposed on the electronic components or connected to the air-cooled or water-cooled heat dissipation components inside the system to achieve the purpose of cooling.

In the present embodiment, the heat conduction component 110 includes a plurality of metal sheets 112 arranged in the same direction, and these regularly arranged metal sheets 112 are stacked on top of each other with a gap therebetween, so as to increase the heat dissipation area of the heat conduction component. These metal sheets 112 are arranged, for example, at the air outlet 132 of the fan assembly 130 , so that the cooling airflow generated by the fan assembly 130 can smoothly pass through the gaps between the metal sheets 112 . In addition, the heat conduction component 110 may further include a heat pipe 114 connected between the metal sheets 112 and a heat source 10 (such as an integrated circuit chip). The inner tube wall of the heat pipe 114 is provided with a capillary structure for the cooling water to flow through the capillary phenomenon in the heat pipe 114, and can conduct the waste heat generated by the heat source 10 on one end of the heat pipe 114 to each metal on the other end of the heat pipe 114. Sheet 112, to achieve the purpose of cooling.

It is worth noting that the vibrator 120 can generate a vibration source for dust removal of the heat conduction component 110 so that excessive dust is not easy to accumulate on the heat dissipation surface of the metal sheet 112 and/or the heat pipe 114 . As shown in FIG. 1 , the vibrator 120 can be directly disposed on the heat conduction component 110 , which can generate a contact vibration source. Through the vibration of the vibrator 120 itself, the metal sheet 112 can feel a vibration force, and then the dust on the metal sheet 112 can be shaken off due to the vibration. In this embodiment, since dust tends to accumulate between the metal sheets 112 and/or between the metal sheets 112 and the heat pipe 114 after a period of time, especially on the fins near the fan assembly 130, the vibrator 120 is configured to The position of the metal sheet 112 close to the fan assembly 130 is preferable to generate the greatest vibration effect, but the drawings of this embodiment are not intended to limit the present invention, and other preferred configuration points obtained through design, experiment or simulation are all Applicable to the present invention. In addition, the number of vibrators 120 can also be selectively set to one or more.

In addition, the fan assembly 130 is disposed on one side of the metal sheet 112, which generates centrifugal force through the rotation of the blade 134, so that the cold air from the outside enters through the air inlet (not shown, in the same direction as the rotation axis of the blade 134), so that the blade 134 The surrounding air flows along the direction of rotation, and then flows from the air outlet 132 to the metal sheets 112 arranged in the same direction as the air flow. In this embodiment, the normal vectors of the air inlet and the air outlet 132 are perpendicular to each other, but in another embodiment, the normal vectors of the air inlet and the air outlet 132 may be parallel to each other.

Please refer to FIG. 2 , the vibrator 120 has, for example, a piezoelectric element 120 a configured and assembled on the heat conduction component 110 of FIG. 1 . The piezoelectric element 120a will be deformed by the volume change produced by the piezoelectric effect (piezoelectric effect), so when the piezoelectric element 120a is input with a high-frequency voltage signal from the outside, it will generate high-frequency mechanical vibration, so it can be used to generate source of vibration. In addition, please refer to FIG. 3 , the vibrator 120 has, for example, an eccentric motor 120b. The eccentric motor 120b has an eccentric element 122, such as an eccentric cam or an eccentric shaft. When the eccentric motor 120b receives electric energy from the outside, the high-speed rotation of the eccentric element 122 can generate an eccentric vibration source, so that the dust accumulated on the metal sheet 112 cannot adhere to it and fall off.

The vibrator 120 is implemented not only as a contact vibration source generated by a piezoelectric element and an eccentric motor, but also can be arranged near the heat conduction component 110 in a non-contact manner to generate a non-contact vibration source. Please refer to FIG. 4 , the vibrator is, for example, an ultrasonic generator 120c, and the ultrasonic waves generated by the vibrator reach the heat conduction component 110 through the air. The fluctuation of the air can prevent the dust from adhering to the surface of the metal sheet 112, so as to produce the effect of dust removal. Because the frequency of the ultrasonic vibration source exceeds the frequency that can be received by the human ear, it will not generate noise to people.

In addition, please refer to FIG. 1 , the vibrator 120 can cooperate with the controller 140 to generate functions such as automatic timing, activation and shutdown, so that the vibrator 120 is set to be automatically activated when the cooling system or electronic components are activated, And when the heat dissipation system or electronic components are in the closed state, it will be automatically closed. Of course, the present invention can also set a hot key or use a built-in dust removal management unit to notify the user, allowing the user to choose the timing of dust removal according to the situation. In addition, the vibrator 120 can also cooperate with a timer (not shown) to count the time when the vibrator 120 provides the vibration source, so that the controller 140 can set the working time of dust removal.

In summary, the present invention proposes a heat sink with dust removal function through research and development and simulation, which can reduce the amount of dust attached to the heat conduction components, especially for the dust accumulated on the metal sheets (radiating fin groups) arranged in the same direction The amount has an excellent weight reduction effect, so as to avoid excessive dust accumulation on the metal sheet near the air outlet of the fan assembly, which will affect the heat dissipation performance of the metal sheet. At the same time, the cooling airflow generated by the fan assembly can easily take away the waste heat on the metal sheet, so the heat dissipation capacity of the radiator is relatively improved.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention, and anyone with ordinary knowledge in the technical field may make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be defined by the claims.

Claims (13)

1. A radiator with dust removal function, comprising: a thermally conductive assembly comprising a plurality of equally arranged metal sheets; and At least one vibrator is connected to the heat conduction component to provide a vibration source to the metal sheets. 2. The heat sink with dust removal function as claimed in claim 1, wherein the vibrator comprises a piezoelectric element, and the piezoelectric element is deformed to generate the vibration source. 3. The radiator with dust removal function as claimed in claim 1, wherein the vibrator comprises an eccentric motor, and the eccentric motor generates the vibration source by rotating an eccentric element. 4. The radiator with dust removal function as claimed in claim 1, further comprising a controller coupled to the vibrator for controlling the vibrator to provide the vibration source. 5. The radiator with dust removal function as claimed in claim 4, wherein the controller comprises a timer, and the timer is set to count the time when the vibrator provides the vibration source. 6 . The heat sink with dust removal function according to claim 1 , wherein the heat conduction component further comprises at least one heat pipe, one end of the heat pipe is connected to the metal sheets, and the other end is connected to a heat source. 7. The heat sink with dust removal function as claimed in claim 1, further comprising a fan assembly having an air outlet corresponding to the metal pieces. 8. A radiator with dust removal function, comprising: a thermally conductive assembly comprising a plurality of equally arranged metal sheets; and A vibrator is arranged near the heat conduction component to provide a non-contact vibration source to the metal sheets. 9. The heat sink with dust removal function as claimed in claim 8, wherein the vibrator comprises an ultrasonic generator for providing an ultrasonic vibration source. 10. The radiator with dust removal function as claimed in claim 8, further comprising a controller coupled to the vibrator for controlling the vibrator to provide the vibration source. 11. The radiator with dust removal function as claimed in claim 10, wherein the controller comprises a timer, and the timer is set to count the time when the vibrator provides the vibration source. 12 . The heat sink with dust removal function as claimed in claim 8 , wherein the heat conduction component further comprises at least one heat pipe, one end of the heat pipe is connected to the metal sheets, and the other end is connected to a heat source. 13 . 13. The heat sink with dust removal function as claimed in claim 8, further comprising a fan assembly disposed on one side of the metal sheets for providing a cooling airflow passing between the metal sheets.

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