CN202177080U

CN202177080U - LED (light-emitting diode) lamp device applying silicon-urethane foaming and radiating materials

Info

Publication number: CN202177080U
Application number: CN2011202968292U
Authority: CN
Inventors: 王志军; 史渊博; 李亚楠
Original assignee: HENAN XINSIWEI PHOTOELECTRIC TECHNOLOGY Co Ltd
Current assignee: HENAN XINSIWEI PHOTOELECTRIC TECHNOLOGY Co Ltd
Priority date: 2011-08-16
Filing date: 2011-08-16
Publication date: 2012-03-28
Anticipated expiration: 2021-08-16

Abstract

The utility model relates to an LED (light-emitting diode) lamp device applying silicon-urethane foaming and radiating materials, which can effectively solve the radiating problem of an LED lamp. The technical scheme adopted by the utility model is as follows: the LED lamp device comprises the LED lamp and a silicon-urethane radiator, wherein the LED lamp consists of a counter electrode, an insulating base, an LED chip and a silica gel body; the insulating base is respectively provided with the counter electrode and the LED chip; the LED chip is connected with the counter electrode by a lead wire and is packaged on the insulating base by the silica gel body; the outer end of the electrode extends out of the silica gel body; the insulating base is provided with the silicon-urethane radiator; the silicon-urethane radiator consists of an upper aluminium substrate and a lower silicon-urethane foaming and radiating body; the aluminium substrate is formed by combining an insulating layer, a copper-coated layer and a solder-resisting layer which are arranged at the upper part of the aluminium substrate in sequence; the silicon-urethane foaming and radiating body is arranged at the lower part of the aluminium plate; and the electrode is welded on the copper-coated layer. In the LED lamp device, the radiating effect is good, the processing is easy and the cost is low.

Description

A kind of LED light fixture of applying silicon amine fat foaming heat sink material

Technical field

The utility model relates to the LED light fixture, particularly a kind of LED light fixture of applying silicon amine fat foaming heat sink material.

Background technology

Along with being widely used of LDE lamp; The heat radiation of LED is more and more paid attention to by people now, and this is that the bad junction temperature of dispelling the heat is just high because the light decay of LED or its life-span are directly relevant with its junction temperature; Life-span is just short; Can prolong 2 times according to 10 ℃ of life-spans of the every reduction of A Leiniusi rule temperature, if junction temperature can be controlled at 65 ° of C, the life-span of its light decay to 70% could be up to 100,000 hours so! Though and at present the radiator of LED lamp is of a great variety, because the problem of structural existence, radiating effect is poor, uses not fully up to expectations so that the life-span of LED light fixture become a subject matter that influences its performance, so improvement and innovate imperative.

Summary of the invention

To above-mentioned situation, for overcoming the prior art defective, the purpose of the utility model just provides a kind of LED light fixture of applying silicon amine fat foaming heat sink material, can effectively solve the heat dissipation problem of LED lamp.

The technical scheme that the utility model solves is, comprises LED lamp and silicon amine fat radiator, and the LED lamp is made up of pair of electrodes, insulator foot, led chip and colloidal silica; Pair of electrodes and led chip are arranged respectively on the insulator foot; Led chip is connected with pair of electrodes through lead, is encapsulated on the insulator foot by colloidal silica, and colloidal silica is stretched out in the electrode outer end; Silicon amine fat radiator is housed on the insulator foot; Silicon amine fat radiator is made up of top aluminium base and following silicon amine fat foaming radiator, and aluminium base is to be combined by insulating barrier, copper-clad and the solder mask that be equipped with successively on aluminium sheet top to constitute, and silicon amine fat foaming radiator is made up of last silicon amine fat layer and following silicon amine fat layer; Silicon amine fat foaming radiator is contained in the bottom of aluminium sheet, and electrode is welded on the copper-clad.

The utility model good heat dissipation effect is prone to processing, and cost is low.

Description of drawings

Fig. 1 is the structural front view of the utility model.

The specific embodiment

Elaborate below in conjunction with the specific embodiment of accompanying drawing to the utility model.

Provided by Fig. 1, the structure of the utility model is to comprise LED lamp and silicon amine fat radiator; The LED lamp is made up of pair of electrodes, insulator foot, led chip and colloidal silica, and pair of electrodes 1 and led chip 3 are arranged respectively on the insulator foot 2, and led chip is connected with pair of electrodes through lead; Be encapsulated on the insulator foot by colloidal silica 4; Colloidal silica is stretched out in the electrode outer end, and silicon amine fat radiator is housed on the insulator foot, and silicon amine fat radiator is made up of top aluminium base and following silicon amine fat foaming radiator; Aluminium base is to be combined by insulating barrier 9, copper-clad 8 and the solder mask 7 that be equipped with successively on aluminium sheet 10 tops to constitute; Silicon amine fat foaming radiator is made up of with following silicon amine fat layer 6 last silicon amine fat layer 5, and silicon amine fat foaming radiator is contained in the bottom of aluminium sheet, and electrode is welded on the copper-clad.

Be evenly equipped with fin 11 on the bottom surface of described silicon amine fat layer 6 down; The described silicon amine fat layer 5 of going up is the composite bodies that carbon dust compound, metal dust and paraffin oil mix with following silicon amine fat layer 6, and wherein the carbon dust compound is carborundum and carbon fibers thing; Metal dust is copper, aluminium, magnesium and molybdenum compsns.

The utility model is to use on the copper-clad of tin cream with welding of LED lamp and aluminium base; Heat process insulator foot, tin cream weld layer (being solder mask), copper-clad, insulating barrier, aluminium sheet and silicon amine fat heat sink radiates that led chip (claiming PN junction again) sends are in air; Accomplish the heat radiation process; Mainly be to utilize silicon amine fat good heat-conducting, the heat with LED lamp pearl on heat sink is transmitted on the silicon amine fat radiator quickly and evenly, eliminates " hot spots " zone; Accelerated silicon amine fat radiator and cross-ventilation, and then heat has been delivered in the air.

The utlity model has following characteristics:

1, high thermal conductivity coefficient, the pyroconductivity maximum can reach 1500W/mK in the plane;

2, low thermal resistance, thermal resistance is lower by 43% than aluminium, than copper low 22%;

3, processing and cost are low easily.

The silicon amine fat of the utility model foaming radiator (claiming silicon amine fat radiator again) surface can with other combinations of materials such as metal, plastic cement, adhesive sticker to satisfy more design function and needs; Heat sink applications foam to silicon amine fat in the LED street lamp; LED lamp pearl and temperature-uniforming plate be tiled on the silicon amine fat radiator dispel the heat; Make that LED lamp pearl is heat sink to be adjacent to temperature-uniforming plate and silicon amine fat radiator, this structure can make life of product improve 18%, and efficiency improves 15%; Cost descends 12%, and huge economic benefit and social benefit are arranged.

Claims

1. the LED light fixture of applying silicon amine fat foaming heat sink material; Comprise LED lamp and silicon amine fat radiator, it is characterized in that the LED lamp is made up of pair of electrodes, insulator foot, led chip and colloidal silica; Pair of electrodes (1) and led chip (3) are arranged respectively on the insulator foot (2); Led chip is connected with pair of electrodes through lead, is encapsulated on the insulator foot by colloidal silica (4), and colloidal silica is stretched out in the electrode outer end; Silicon amine fat radiator is housed on the insulator foot; Silicon amine fat radiator is made up of top aluminium base and following silicon amine fat foaming radiator, and aluminium base is to combine formation by insulating barrier (9), copper-clad (8) and the solder mask (7) that be equipped with successively on aluminium sheet (10) top, and silicon amine fat foaming radiator is made up of last silicon amine fat layer (5) and following silicon amine fat layer (6); Silicon amine fat foaming radiator is contained in the bottom of aluminium sheet, and electrode is welded on the copper-clad.

2. the LED light fixture of applying silicon amine fat foaming heat sink material according to claim 1 is characterized in that, is evenly equipped with fin (11) on the bottom surface of described silicon amine fat layer (6) down.