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Phase change material and LED light apparatus radiator prepared from the same

A technology of phase change materials and components, applied in heat exchange materials, semiconductor devices of light-emitting elements, cooling/heating devices of lighting devices, etc., can solve the problems of latent heat energy storage efficiency and poor thermal conductivity, and avoid The effect of sharp rise in temperature, good heat dissipation effect, increased life and stability

Inactive Publication Date: 2012-10-17
NINGBO KLITE ELECTRIC MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When it is used in the manufacture of LED lamp radiators, the latent heat energy storage efficiency and thermal conductivity are not good

Method used

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  • Phase change material and LED light apparatus radiator prepared from the same
  • Phase change material and LED light apparatus radiator prepared from the same
  • Phase change material and LED light apparatus radiator prepared from the same

Examples

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Effect test

Embodiment 1-14

[0031] A phase change material made by mixing the components shown in Table 1. After being heated, the phase change material is solid at normal temperature and is in the form of crystals, and its solid form is directly used as a filler in application.

[0032] Table 1

[0033] Example 1 2 3 4 5 6 7 MgCl 2 ·6H 2 O and MgSO 4 4H 2 O weight ratio - 1:1 1:1 1:1 1:1 1:1.5 1.5:1 MgCl 2 ·6H 2 O and MgSO 4 4H 2 The total amount of O - 1g 3g 3g 5g 4g 3g AL 2 o 3 ·3H 2 o 2g 2g 2g 2g 1g 3g 2g Graphene 0g 0g 0g 5g 5g 5g 5g Polyamide epichlorohydrin resin (PAE) 0.5g 0.5g 0.5g 0.5g 0.5g 0.5g 0.5g Na 2 S 2 o 3 · 5H 2 o 97.5g 96.5g 94.5g 89.5g 88.5g 87.5g 89.5g

[0034] Table 1 (continued)

[0035] Example 8 9 10 11 12 13 comparative example MgCl 2 ·6H 2 O and MgSO 4 4H 2 O weight ratio - 1:1 1:1 1:1 1:1 1:1.5 - MgCl 2 ·6H 2 O and...

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Abstract

The present invention belongs to the field of inorganic chemistry, and relates to a phase change material, and an LED light apparatus radiator prepared from the phase change material. The phase change material comprises the following components, by mass, 2-5% of a mixture, 1-3% of Al2O3.3H2O, 4-6% of graphene, 0-0.5% of polyamide resin, and the balance of Na2S2O3.5H2O, wherein the mixture is prepared by mixing MgCl2.6H2O and MgSO4.4H2O according to any ratios. According to the present invention, the phase change energy storage material is adopted to control the temperature of the LED radiator, such that the temperature of the LED chip can slowly increase so as to substantially increase service life and stability of the LED chip; when the LED light apparatus is started, the phase change material is in the crystal state, and absorbs a large amount of heat so as to slow the temperature increasing speed of the LED, then the phase change material is in the balance state, and the crystal becomes into liquid; when the light apparatus is closed, the phase change material begins to release heat from the liquid state so as to convert into the crystal. With the LED light apparatus radiator prepared from the phase change material, the LED light apparatus has characteristics of long service life and good brightness.

Description

technical field [0001] The invention belongs to the field of inorganic chemistry, and relates to a phase change material and an LED lamp heat sink made of the phase change material. Background technique [0002] Energy shortage and environmental pollution in today's society have become important problems we are facing. The emergence of LED lighting has entered an era of green and energy-saving lighting. However, the heat dissipation problem of LED light sources has become a bottleneck in the development of LED lighting. How to improve the heat dissipation effect of LED is the mainstream problem at present. Phase change material (PCM) can absorb the heat (cold) of the environment during its own phase change, and release heat (cold) to the environment when needed, so as to achieve the purpose of controlling the temperature of the surrounding environment. The phase transition process of matter is an isothermal or nearly isothermal process, in which energy is absorbed or releas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/06F21V29/00F21Y101/02F21V29/85F21Y115/10
Inventor 李徐达
Owner NINGBO KLITE ELECTRIC MFG