CN202546430U

CN202546430U - LED (light-emitting diode) light source

Info

Publication number: CN202546430U
Application number: CN2012202007209U
Authority: CN
Inventors: 郑柏林
Original assignee: ZHEJIANG YINYU LIGHTING TECHNOLOGY Co Ltd
Current assignee: ZHEJIANG YINYU LIGHTING TECHNOLOGY Co Ltd
Priority date: 2012-04-23
Filing date: 2012-04-23
Publication date: 2012-11-21
Anticipated expiration: 2022-04-23

Abstract

The utility model relates to an LED (light-emitting diode) light source. The LED light source comprises a copper rod, a mounting table, a graphite heat-conducting sheet and an LED luminous body, wherein one end of the copper rod is fixedly mounted with the mounting table, the graphite heat-conducting sheet is arranged between the mounting table and the LED luminous body, the LED luminous body and the mounting table are fixedly mounted through a screw, the copper rod is a hollow pipe, the LED luminous body comprises a transparent silica gel, a light-emitting chip, a ceramic substrate and an aluminum sheet, the light-emitting chip is packaged on the ceramic substrate, the transparent silica gel is stuck on the light-emitting chip, the aluminum sheet is arranged on the back surface of the ceramic substrate, and the aluminum sheet is stamped in the ceramic substrate. The LED light source disclosed by the utility model has the advantages of reasonable design, reliable performance, high light transmittance and good heat radiation effect, the junction temperature can be controlled within 65 DEG C, and the heat resistance is lower than 0.5 DEG C/W.

Description

Led light source

Technical field

The utility model relates to a kind of led light source, is mainly used in a kind of indoor and outdoor lighting light fixture.

Background technology

Led light source is a kind of solid semiconductor device that can directly electric energy be converted into visible light, has that volume is little, energy consumption is low, light efficiency is high, little an or the like advantage of long service life, caloric value.After incandescent lamp, three-color fluorescent lamp; LED is called as third generation energy-saving illumination light source as lighting source, and its development trend is to come into huge numbers of families, replaces present widely used incandescent lamp and three primary colours energy-saving fluorescent lamp; If LED substitutes the incandescent lamp and the fluorescent lamp of half; Can practice thrift the energy that is equivalent to crude oil more than 10,000,000,000 liters every year, and can reduce the generation of carbon dioxide and other greenhouse gases, improves the environment that people live and live.At present; Be used for being promoted the use of of outdoor lighting like LED street lamp, Tunnel Lamp, Landscape Lamp and some dedicated lamp such as LED mine lamp, LED auto lamp etc.; Be used for room lighting particularly the light fixture of home lighting still be in elementary developing stage; It is known wherein to adopt the LED lamp to constitute bulb type led light source, lamp tube type led light source and LED shot-light, and existing procucts sell in the market, and led light source ubiquity heat dissipation problem in the market; Its junction temperature is higher relatively, thereby has influence on service life and light decay is serious.

The utility model content

The purpose of the utility model is to overcome the above-mentioned deficiency that exists in the prior art, and a kind of Rational structure design is provided, perfect heat-dissipating, long service life, the led light source of energy-conserving and environment-protective.

The utility model addresses the above problem the technical scheme that is adopted: a kind of led light source comprises copper rod, erecting bed, graphite heat-conducting fin and LED illuminator, said copper rod one end and erecting bed fixed installation; Be provided with graphite heat-conducting fin between said erecting bed and the LED illuminator, LED illuminator and erecting bed adopt the screw fixed installation, and said copper rod is a hollow pipe; Said LED illuminator comprises transparent silica gel; Luminescence chip, ceramic substrate and aluminium flake, said luminescence chip is encapsulated on the ceramic substrate, and transparent silica gel sticks on the luminescence chip; The back side of ceramic substrate is provided with aluminium flake, and the aluminium flake punching press is in ceramic substrate.

The said silica gel of the utility model, the center of luminescence chip, ceramic substrate and aluminium flake is on same vertical line.

The said aluminium flake of the utility model is aluminium oxide or aluminium nitride.

The said erecting bed of the utility model is flange-like, and erecting bed is provided with installing hole.

The utility model compared with prior art has the following advantages and effect: simple in structure, reasonable in design, and dependable performance, light transmittance height and good heat dissipation effect, luminescence chip junction temperature can be controlled in 65 ℃, and thermal resistance is lower than 0.5 ℃/W.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment.

Fig. 2 is the scheme of installation of the utility model embodiment.

Fig. 3 is the structural representation of facing of the said LED illuminator of the utility model embodiment.

Fig. 4 is the side-looking structural representation of the said LED illuminator of the utility model embodiment.

Fig. 5 is the backsight structural representation of the said LED illuminator of the utility model embodiment.

The specific embodiment

Below in conjunction with accompanying drawing and through embodiment the utility model is done further to specify, following examples are to the explanation of the utility model and the utility model is not limited to following examples.

Embodiment:

Referring to Fig. 1 to Fig. 5; A kind of led light source in the present embodiment comprises copper rod 1, erecting bed 2, graphite heat-conducting fin 4 and LED illuminator 3, said copper rod 1 one ends and erecting bed 2 fixed installations; Be provided with graphite heat-conducting fin 4 between said erecting bed 2 and the LED illuminator 3; The ceramic substrate 34 and aluminium flake 33 of graphite heat-conducting fin 4 tight iron erecting beds 2 and LED illuminator 3 can quicken heat and be transmitted to copper rod 1, strengthen heat dispersion.

The utility model LED illuminator 3 adopts the screw fixed installation with erecting bed 2,

The said copper rod 1 of the utility model is a hollow pipe.

The said LED illuminator 3 of the utility model comprises transparent silica gel 31, luminescence chip 32, ceramic substrate 34 and aluminium flake 33; Said luminescence chip 32 is encapsulated on the ceramic substrate 34; Transparent silica gel 31 adopts glue sealing to stick on the luminescence chip 32; Transparent silica gel 31 covers luminescence chip 32, and the back side of ceramic substrate 34 is provided with aluminium flake 33, and aluminium flake 33 punching presses are in ceramic substrate 34.

Center after the installation of the said transparent silica gel of the utility model 31, luminescence chip 32, ceramic substrate 34 and aluminium flake 33 is on same vertical line.

The said aluminium flake 33 of the utility model is aluminium oxide or aluminium nitride, adopts the aluminium flake 33 that metallic plate strikes out and the luminescence chip size is similar of aluminium oxide or aluminium nitride material, also can the ordinary aluminum plate punching press be processed after the aluminium flake 33 through nitrogenize or oxidation processes.

The said erecting bed 2 of the utility model is flange-like, and erecting bed 2 is provided with installing hole.

More than be the practical implementation under the utility model technical scheme framework, the simple deformation or the combination of every the utility model embodiment technical scheme and technical characterictic all should be thought the protection domain that falls into the utility model.

Claims

1. a led light source is characterized in that: comprise copper rod, erecting bed, graphite heat-conducting fin and LED illuminator, said copper rod one end and erecting bed fixed installation; Be provided with graphite heat-conducting fin between said erecting bed and the LED illuminator, LED illuminator and erecting bed adopt the screw fixed installation, and said copper rod is a hollow pipe; Said LED illuminator comprises transparent silica gel; Luminescence chip, ceramic substrate and aluminium flake, said luminescence chip is encapsulated on the ceramic substrate, and transparent silica gel sticks on the luminescence chip; The back side of ceramic substrate is provided with aluminium flake, and the aluminium flake punching press is in ceramic substrate.

2. led light source according to claim 1 is characterized in that: said silica gel, the center of luminescence chip, ceramic substrate and aluminium flake is on same vertical line.

3. led light source according to claim 1 is characterized in that: said aluminium flake is aluminium oxide or aluminium nitride.

4. led light source according to claim 1 is characterized in that: said erecting bed is flange-like, and erecting bed is provided with installing hole.