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Light-emitting diode illumination device using diamond powder-copper powder composite material to radiate heat

A technology of light-emitting diodes and composite materials, applied in the field of LED invention, can solve the problems of heat dissipation of LED lighting devices, and achieve the effects of enhancing convection heat radiation, increasing contact area, and good heat dissipation effect

Inactive Publication Date: 2013-06-05
SOUTH CHINA NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the heat dissipation problem of the existing LED lighting device, and provide a light-emitting diode lighting device that uses diamond powder-copper powder composite material to dissipate heat. The specific technical scheme is as follows

Method used

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  • Light-emitting diode illumination device using diamond powder-copper powder composite material to radiate heat
  • Light-emitting diode illumination device using diamond powder-copper powder composite material to radiate heat
  • Light-emitting diode illumination device using diamond powder-copper powder composite material to radiate heat

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Embodiment Construction

[0028] Referring to FIG. 1 to FIG. 10 , the present invention provides a preferred embodiment of an LED lighting device using a diamond powder-copper powder composite material as a heat sink, but the embodiment of the present invention is not limited thereto.

[0029] like Figure 1a As shown: The LED 5 is directly placed on the upper surface of the heat dissipation substrate 1 made of diamond powder and copper powder composite material at the center through the heat conduction glue 4 . The thermal conductive adhesive 4 here can be replaced by gold-tin alloy, and the combination of the LED 5 and the heat dissipation substrate 1 can also be realized by eutectic soldering technology. The heat of the LED 5 is radiated to the air through the heat dissipation substrate 1 . The lower surface of the heat dissipation substrate 1 is formed with heat dissipation fins 11, and the size and arrangement of the fins 11 can be changed. The heat dissipation substrate 1 is a diamond powder-cop...

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Abstract

The invention discloses a light-emitting diode illumination device using a diamond powder-copper powder composite material to radiate heat. The light-emitting diode illumination device comprises a heat radiation substrate (1) made of the diamond powder-copper powder composite material, an LED (Light-emitting Diode) (5) and a side heat radiation plate (9); and the LED (5) is directly adhered on the upper surface of the heat radiation substrate (1) through heat-conduction glue (4). In addition, the LED illumination device also comprises a reflection cup made of the diamond powder-copper powder composite material. The LED illumination device, which utilizes the diamond powder-copper powder composite material to be a heat radiation device, can effectively radiate the heat and also can consider luminescence characteristics at the same time; and the light-emitting diode illumination device is convenient for manufacturing and can be produced in batches.

Description

technical field [0001] The invention relates to the technical field of LED inventions, in particular to a light-emitting diode lighting device using a diamond powder-copper powder composite material as a heat sink. Background technique [0002] Due to the advantages of small size, energy saving, environmental protection, and long life of LED, its application is more and more extensive, from early indicator lights and signal lights to current backlights, indoor and outdoor lighting, and automotive light sources. When the LEDs are densely arranged, lit for a long time or input a large current, the problem of heat generation becomes obvious. How to solve the problem of heat dissipation is an unavoidable problem in the application process of LEDs. If the heat dissipation problem is not solved, the heat of the LED cannot be dissipated, and the operating temperature of the LED will rise. Will it have any impact? There are two main effects on this: (1) weakening of luminous bright...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L33/64H01L33/48H01L33/60
Inventor 姚光锐范广涵张涛郑树文周德涛赵芳贺龙飞
Owner SOUTH CHINA NORMAL UNIVERSITY