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White light LED light source component and production method thereof

A technology of LED light source and production method, which is applied in the direction of light source, electric light source, point light source, etc., which can solve the problems of low light output efficiency of LED lamps and wide-angle lighting of LED lamps, and achieve simple manufacturing process and high light output efficiency , The effect of simple process

Inactive Publication Date: 2015-06-03
ELEC TECH INT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The light output efficiency of this kind of LED lamp is not high, so that the LED lamp cannot realize wide-angle lighting

Method used

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  • White light LED light source component and production method thereof

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Experimental program
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Effect test

Embodiment 1

[0037] The production method of the above-mentioned white LED light source assembly 10 includes the following steps:

[0038] Step S101, uniformly mixing low melting point glass powder and yttrium aluminum garnet fluorescent powder to prepare initial raw materials, the weight percentage of each component of the initial raw materials is: 49.5% PbO, 30% SiO 2 , 20% ZnO and 0.5% yttrium aluminum garnet phosphor.

[0039] Step S102, calcining the above-mentioned initial raw materials in a furnace at 400° C., and then forming the matrix 11 by hot pressing with a hot pressing die;

[0040] Step S103 , on the base 11 , an encapsulation cavity 11 a is formed by extruding a cofferdam of phosphor silica gel, and 5 wt % of yttrium aluminum garnet phosphor is mixed in the phosphor silica gel;

[0041] Step S104, screen printing silver paste on the substrate 11 to form two main lines;

[0042]Step S105, bonding the LED blue light chip 12 in the packaging cavity 11a through phosphor silic...

Embodiment 2

[0046] The production method of the white LED light source assembly 10 in this embodiment includes the following steps:

[0047] Step S201, uniformly mixing low melting point glass powder and yttrium aluminum garnet fluorescent powder to prepare initial raw materials, the weight percentage of each component of the initial raw materials is: 55% PbO, 25% SiO 2 , 15% ZnO and 5% yttrium aluminum garnet phosphor.

[0048] Step S202, calcining the above-mentioned initial raw materials in a furnace at 400°C, and then forming the base body 11 by hot pressing with a hot pressing die, and the base body 11 is hot pressing molded with an encapsulation cavity 11a;

[0049] Step S203, screen printing silver paste on the substrate 11 to form two main lines;

[0050] Step S204, bonding the LED blue light chip 12 in the packaging cavity 11a through phosphor silica gel, where 10 wt% of yttrium aluminum garnet phosphor is mixed in the phosphor silica gel;

[0051] Step S205, welding one end of...

Embodiment 3

[0055] The production method of the white LED light source assembly 10 in this embodiment includes the following steps:

[0056] Step S301, uniformly mixing low melting point glass powder and yttrium aluminum garnet fluorescent powder to prepare initial raw materials, the weight percentage of each component of the initial raw materials is: 45% PbO, 30% SiO 2 , 20% ZnO and 5% yttrium aluminum garnet phosphor.

[0057] Step S302, calcining the above-mentioned initial raw materials in a furnace at 600°C, and then forming the base body 11 by hot pressing with a hot pressing die, and the base body 11 is hot pressing molded with an encapsulation cavity 11a;

[0058] Step S303, screen printing silver paste on the substrate 11 to form two main lines;

[0059] Step S304, bonding the LED blue light chip 12 in the packaging cavity 11a through phosphor silica gel, where 8wt% of yttrium aluminum garnet phosphor is mixed in the phosphor silica gel;

[0060] Step S305, welding one end of t...

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Abstract

The invention discloses a white light LED light source component and a production method thereof. The white light LED light source component comprises an yttrium aluminum garnet phosphor powder fluorescent glass matrix, an LED blue light chip, and a connecting circuit. The melting point of the matrix is 400-600 degrees centigrade; and the matrix comprises 45-55wt% of PbO, 20-30wt% of SiO2, 15-20wt% of ZnO, and 0.5-5wt% of yttrium aluminum garnet phosphor powder. The LED blue light chip is fixed on the surface of the matrix and the light-emitting surface of the LED blue light chip faces to the matrix. The connecting circuit is used for connecting the LED blue light chip with an external power supply. The disclosed white light LED light source component breaks the limitation of light-emitting angle of the LED single-side lamp source in the prior art by arranging the LED blue light chip and the connecting circuit on the fluorescent glass matrix which has a low melting point; therefore, a wide-angle light emission is achieved by a simple manufacturing technology. The disclosed white light LED light source component has very high light-emitting efficiency.

Description

technical field [0001] The invention relates to a lighting device, in particular to a white LED light source assembly and a production method thereof. Background technique [0002] As the fourth-generation lighting source, LED has significant advantages in energy saving and longevity. With the development of society, the problem of lighting energy consumption in daily life has become increasingly prominent. Therefore, LED lamps with significant energy-saving advantages are more and more popular. However, since the LED light-emitting chip is a point light source, the light-emitting angle of the LED is limited by its light-emitting angle, so the general LED lamps use an LED array single-sided light source. The light extraction efficiency of this kind of LED lamp is not high, so that the LED lamp cannot realize wide-angle lighting. Contents of the invention [0003] In view of the above-mentioned current state of the art, the technical problem to be solved by the present in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00F21V19/00F21Y101/02
CPCH01L33/486F21V23/06H01L25/0753H01L33/507H01L2933/0033H01L2933/0041
Inventor 王冬雷李廷宏凌云
Owner ELEC TECH INT CO LTD
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