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High-power LED radiating lamp and preparation method for non-uniform wettability patterned surface

A heat dissipation lamp and high-power technology, applied in lighting and heating equipment, components of lighting devices, semiconductor devices of light-emitting elements, etc., can solve the problems of high-power LED temperature rise, small thermal conductivity, burnout, etc., and achieve improved startup The effects of speed, enhanced heat transfer, and efficient conduction

Pending Publication Date: 2017-09-22
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the small thermal conductivity of steam, the sudden drop of the heat transfer coefficient will also cause the temperature of the high-power LED to rise sharply and burn out

Method used

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  • High-power LED radiating lamp and preparation method for non-uniform wettability patterned surface
  • High-power LED radiating lamp and preparation method for non-uniform wettability patterned surface
  • High-power LED radiating lamp and preparation method for non-uniform wettability patterned surface

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Embodiment 1

[0037] The structural representation of the high-power LED cooling lamp of the present invention is as follows: figure 1 , figure 2 , Figure 4 As shown, it includes lampshade 1, LED chip 2, fixing bolt 3, heat exchange medium 4, condensation section 5, spiral channel 6, cover plate 7, liquid filling and air extraction hole 8, trapezoidal fin 9, evaporation section 10, bottom plate 11 and LED circuit substrate 12. The LED chip 2 is connected to the LED circuit substrate 12 by eutectic soldering of tin-gold alloy; the LED circuit substrate 12 is fixedly connected to the bottom plate 11 through the fixing bolt 3, and the insulating heat-conducting glue is filled between the circuit substrate 12 and the evaporation section bottom plate 11; The surface of the bottom plate is treated with non-uniform wettability, and the surface is divided into superhydrophilic regions 14 and radial superhydrophobic regions 13 (such as image 3 shown); the bottom plate of the evaporation sectio...

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Abstract

The invention discloses a high-power LED radiating lamp and a preparation method for a non-uniform wettability patterned surface. The LED radiating lamp comprises a gravity heat pipe radiator, an LED circuit substrate and an LED light source module; the gravity heat pipe radiator comprises an upper condensation section and a lower evaporation section condensation section; the condensation section comprises a heat pipe, trapezoidal fins and a cover plate; the inner side of the heat pipe and the bottom surface of the cover plate are subjected to super-hydrophobic treatment and have the super-hydrophobic properties; the evaporation section is a cylindrical cavity, a base plate of the cavity is connected to the LED circuit substrate through bolts; the cavity is internally filled with heat exchange working mediums; the surface of the base plate of the cavity is subjected to non-uniform wettability treatment and is divided into a super-hydrophobic region and a super-hydrophilic region; and the super-hydrophobic area is radialized. The LED radiating lamp has teh advantages of being simple in structure, high in response speed and high in radiating capacity, the high-power LED lamp can be effectively maintained to operate at the normal temperature, the luminous efficiency can be enhanced, and the service life can be prolonged.

Description

technical field [0001] The invention belongs to the technical field of LED lighting, and in particular relates to a high-power LED heat dissipation lamp and a method for preparing a non-uniform wettability patterned surface. Background technique [0002] The new solid-state lighting source LED (Light Emitting Diode) has many advantages such as energy saving, environmental protection, and long service life, and is recognized as the fourth-generation lighting source. LED lighting applications and industrial development prospects are attractive, but there are still many problems to be solved if LEDs are to be widely used on a large scale. Heat dissipation is one of the difficulties, key and core issues. At present, the photoelectric conversion efficiency of LED is still relatively poor, only 10% to 15% of the input electric energy is converted into light energy, and the remaining 85% to 90% of the energy is mainly converted into heat energy in the form of lattice vibration gene...

Claims

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Application Information

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IPC IPC(8): F21K9/20F21V29/51F21V23/00F21V19/00F21V29/56F21V31/00F21V29/89F21Y115/10
CPCF21K9/20F21V19/001F21V23/004F21V29/51F21V29/56F21V29/89F21V31/005F21Y2115/10
Inventor 蒋翔黄鹏朱琦
Owner SOUTH CHINA UNIV OF TECH
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