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LED lamp cooling fin convenient for cooling

A technology for LED lamps and heat sinks, applied in the field of LEDs, can solve the problems of poor thermal conductivity and heat resistance, reduced lamp life, poor tensile yield strength, etc., to improve thermal conductivity, improve dispersion effect, and long service life. Effect

Inactive Publication Date: 2015-06-24
WUHU SHENLONG NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the heat sinks used in LED lamps in the prior art have defects such as poor thermal conductivity and heat resistance, easy thermal deformation, poor tensile yield strength, and easy breakage, which greatly reduces the life of the lamp.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The LED light heat sink for heat dissipation in this embodiment is prepared from the following raw materials in parts by mass: 20 parts of silicon carbide, 10 parts of aluminum nitride, 8 parts of graphite, 6 parts of paraffin, 6 parts of glass fiber, polycarbonate 6 parts, polyglycolic acid 4 parts, sodium fluorosilicate 2 parts, vinyl acetate resin 2 parts, modifier 1 part, ferrous chloride 2 parts, alum 1 part, silicon nitride powder 1 part.

[0016] The preparation method of above-mentioned radiator comprises the steps:

[0017] 1) Weighing raw materials: Weighing each raw material according to parts by mass for subsequent use;

[0018] 2) Preparation of modified silicon carbide: Send silicon carbide to a ball mill, grind it to a powder with a particle size of 300 mesh or more, then put the powder in a container, then add a modifier, and centrifuge at 1000 rpm for 10 minutes to obtain ; The modifier is prepared by uniformly mixing isopropyl titanate, water and acet...

Embodiment 2

[0023] The LED light heat sink for heat dissipation in this embodiment is prepared from the following raw materials in parts by mass: 25 parts of silicon carbide, 15 parts of aluminum nitride, 9 parts of graphite, 8 parts of paraffin wax, 8 parts of glass fiber, polycarbonate 7 parts, polyglycolic acid 5 parts, sodium fluorosilicate 3 parts, vinyl acetate resin 4 parts, modifier 2 parts, ferrous chloride 3 parts, alum 2 parts, silicon nitride powder 2 parts.

[0024] The preparation method of above-mentioned radiator comprises the steps:

[0025] 1) Weighing raw materials: Weighing each raw material according to parts by mass for subsequent use;

[0026] 2) Preparation of modified silicon carbide: Send silicon carbide to a ball mill, grind it to a powder with a particle size of 300 mesh or more, then put the powder in a container, then add a modifier, and centrifuge at 1000 rpm for 10 minutes to obtain ; The modifier is prepared by uniformly mixing isopropyl titanate, water a...

Embodiment 3

[0031] The LED light heat sink for heat dissipation in this embodiment is prepared from the following raw materials in parts by mass: 30 parts of silicon carbide, 20 parts of aluminum nitride, 10 parts of graphite, 10 parts of paraffin, 10 parts of glass fiber, polycarbonate 8 parts, polyglycolic acid 6 parts, sodium fluorosilicate 4 parts, vinyl acetate resin 5 parts, modifier 3 parts, ferrous chloride 4 parts, alum 3 parts, silicon nitride powder 3 parts.

[0032] The preparation method of above-mentioned radiator comprises the steps:

[0033] 1) Weighing raw materials: Weighing each raw material according to parts by mass for subsequent use;

[0034] 2) Preparation of modified silicon carbide: Send silicon carbide to a ball mill, grind it to a powder with a particle size of 300 mesh or more, then put the powder in a container, then add a modifier, and centrifuge at 1000 rpm for 10 minutes to obtain ; The modifier is prepared by uniformly mixing isopropyl titanate, water an...

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Abstract

The invention relates to an LED lamp cooling fin convenient for cooling. The LED lamp cooling fin is prepared by raw materials comprising, by weight, 20-30 parts of silicon carbide, 10-20 parts of aluminium nitride, 8-10 parts of graphite, 6-10 parts of paraffin wax, 6-10 parts of glass fibers, 6-8 parts of polycarbonate, 4-6 parts of polyglycolic acid, 2-4 parts of sodium silicofluoride, 2-5 parts of chlorine vinegar resin, 1-3 parts of modifiers, 2-4 parts of ferrous chloride, 1-3 parts of alums and 1-3 parts of silicon nitride powder. Heat-conducting property, flame retardant property and mechanical property are greatly improved by adding the raw materials of the modified silicon carbide, the glass fibers, the polycarbonate, the alums, the silicon nitride powder and the like in a composite material; modification is performed through the silicon carbide, dispersion effect of the silicon carbide is improved, and accumulation of the silicon carbide is avoided; an LED lamp is heat resistant, aging resistant and long in service life.

Description

technical field [0001] The invention belongs to the technical field of LEDs, and in particular relates to a heat sink for LED lamps which is convenient for heat dissipation. Background technique [0002] LED lamps, the full name of light-emitting diode lamps, refer to appliances that can transmit light, distribute and change the light distribution of LED light sources. With its technical characteristics of high efficiency, energy saving, longevity, and compactness, LED lamps have effectively promoted the rapid development of the environmental protection and energy saving industry. Due to the light generation characteristics of the LED, only 20% of its energy input when illuminating the device is converted into light energy, while the remaining 80% is converted into thermal energy in the junction part, thereby increasing the internal temperature. Most heat sinks used in LED lamps in the prior art have defects such as poor thermal conductivity and heat resistance, easy therma...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L67/04C08L91/06C08L27/06C08K13/06C08K9/04C08K3/34C08K3/28C08K3/04C08K7/14C08K3/16
CPCC08L69/00C08K2201/003C08K2201/014C08L2201/02C08L2205/035C08L67/04C08L91/06C08L27/06C08K13/06C08K9/04C08K3/34C08K2003/282C08K3/04C08K7/14C08K3/16
Inventor 蒋宏青王德如刘瑞
Owner WUHU SHENLONG NEW ENERGY TECH
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