Heat Pipe Tower LED Heat Sink

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  A LED heat sink based on a double -layer heat pipe tower aluminum fins structure:

The working principle of heat pipe tower LED heat sink:

  This type of heat sink is based on a double-layer heat pipe tower aluminum fin structure, This heat sink includes copper pedestal and aluminum substrates, double -layer heat pipes, and aluminum fins. In order to solve the thermal problem of LED which is greatly limited due to the limited heat dissipation area, this type of heat sink uses several heat pipes in the form of double layers on the substrate. There are many aluminum fins in the cold end. The heat emitted by the LED chip is transmitted to the two sides above the LED by the copper pedestal and double -layer heat pipe. This type of heat sink can significantly increase the area of the heat sink, thereby effectively increasing the heat dissipation of LED, extending LED service life, and improving the working environment of LED.  This type of heat sink is usually used in the field of LED lighting lamps, especially a high power LED device.

Background

  The LED light requires an electrical current driving. the input electrical energy to LED, only about 15 % to 25 % can be converted into light, which means that a lot of heat will generate during the LED luminous process. In nowadays, thermal problems have become a key factor restricting LED development. With the improvement of the LED power, the effects of thermal characteristics on LED are becoming more and more significant, which will not only cause the device's life to decay sharply, but also seriously affect the parameters of the wavelength, power, and optical flux of LED.

  Regarding the improvement of LED heat dissipation technology, many manufacturers have made attempts, such as using aluminum fins as radiator and single -layer heat pipe technology, but the results are not obvious. Adopting new technologies and improving LED heat dissipation are of great significance to promoting the development of "green energy" such as LED.

1,The connection between the double layer heat pipes and the aluminum substrate: there are raised square holes on the aluminum substrate. The heat pipes are fixed through the square hole in the form of stacking. The gap between the aluminum substrate and the heat pipe, the upper heat pipe and the lower heat pipe are filled by the thermal gel.

2. heat pipe tube material: considering the two aspects of pressure and reduce thermal resistance, the heat pipe uses copper as the tube, which can reduce the weight and cost of the heat pipe; This design often solder the aluminum fins with heat pipes to dissipate the heat to the air.

3. Heat pipe working fluid: Analyze the temperature range of LED heat dissipation, and the low temperature heat pipe should be selected (below 200 ° C). and the working fluid is usually used pure water.

4. Aluminum fins: The method of welding sheets is used to connect heat pipes and aluminum fins, which can increase heat exchange. The fins material is selected for aluminum alloy, which is selected by cheap price, good thermal conductivity, high yield strength, pumping pressure, and easy processing.

Compared with existing technology, the useful new type of useful effects are as follows:

1. Compared with the structure of the heat sink directly on the aluminum -based plate, the dual -layer heat pipe structure is used to transfer the heat to the two sides of heatsink above the LED, to avoid the imited area of the heat sink leads to the great restrictions on the heat dissipation, which greatly improve the thermal performance, which is conducive to extending the service life of LED devices and providing an environment that is more conducive to LED work.

2. Compared with the single -layer heat pipe, the heat pipe tower LED heat sink can increase the heat exchange area of the working fluid in the heat pipe, thereby enhancing the ability of heat pipe to transmit heat.

3. The new model is composed of heat pipes and aluminum fins. It has simple structure, easy production, low cost, and practical function. Therefore, this device has high practicality.

Sinda Thermal is a professional heat sink manufacturer, we are experienced in heat sink design, manufacturing, we own a team of thermal experts, precise facilities and equipment, we are always providing the best service to the global customers, please feel free to contact us if you have any heat sink requirements.

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