CN201935051U - LED spotlight with high lighting effect and high color rendering property - Google Patents

LED spotlight with high lighting effect and high color rendering property Download PDF

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Publication number
CN201935051U
CN201935051U CN2010206575828U CN201020657582U CN201935051U CN 201935051 U CN201935051 U CN 201935051U CN 2010206575828 U CN2010206575828 U CN 2010206575828U CN 201020657582 U CN201020657582 U CN 201020657582U CN 201935051 U CN201935051 U CN 201935051U
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CN
China
Prior art keywords
led
light
rgb
led chip
heat sink
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Expired - Fee Related
Application number
CN2010206575828U
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Chinese (zh)
Inventor
刘东芳
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HEYUAN CHIUYUE OPTOELECTRONICS TECHNOLOGY Co Ltd
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HEYUAN CHIUYUE OPTOELECTRONICS TECHNOLOGY Co Ltd
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Priority to CN2010206575828U priority Critical patent/CN201935051U/en
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Publication of CN201935051U publication Critical patent/CN201935051U/en
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Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an LED spotlight with high lighting effect and high color rendering property, which comprises a wire box (6). A driving power source is arranged in the wire box, a light cap (1) is arranged on the side of the wire box (6), a metal radiator (2) is arranged on the back portion of the light cap (1), a circuit layer and a plurality of arc-shaped grooves (4) are arranged on the front surface of the metal radiator (2), each of the arc-shaped grooves (4) is provided with an RGB (red, green and blue) three-primary-color LED chip (3), LED chip welding points (5) electrically connected with the circuit layer are arranged on two sides of each of the arc-shaped grooves (4) on the metal radiator (2), and are electrically connected with two electrodes of the RGB three-primary-color LED chips (3) via lead wires. The RGB three-primary-color LED chips are capsulated onto the metal radiator to form an LED and metal radiator solidified body, so that radiating distance of the LED spotlight is shortened, and lighting effect and color rendering property of LEDs are improved.

Description

The LED shot-light of high light efficiency and high-color rendering
Technical field
The utility model belongs to the technical field of lighting, specifically is meant the LED shot-light of a kind of high light efficiency and high-color rendering.
Background technology
The shot-light structure mainly is made up of line box, lamp holder, metal heat sink, power supply, led light source.Be mainly used in interior decoration illuminations such as store display show window, restaurant, dining room, show local lightings such as the Room, the artistic Room, museum, office, reading room.The illumination of atmosphere such as bar, disco, Karaoke.
Along with the semi-conductor industry development of technology, the light emitting diode cost performance improves day by day, and it is trend of the times that the LED shot-light replaces traditional shot-light.
At present, on the market on the substrate (as aluminium base) of the most weld metal material of the LED of all LED shot-lights.The heat radiation approach of whole shot-light: outside LED → pcb board (aluminium base) → thermal conductive insulation glue → metal shell → lamp body, though metal substrates such as aluminium base have very good heat conductivility and high-intensity electrical insulation properties, but the heat radiation approach is oversize, the heat that LED produces is difficult for getting rid of, cause the LED junction temperature to raise, the rising of LED junction temperature can make transistorized current amplification factor increase sharply, cause collector current to increase, junction temperature is further raise, finally cause the LED light efficiency to descend until inefficacy.In addition, the LED shot-light is under the high temperature work for a long time, can cause bad phenomenon such as insulating properties degeneration, components and parts damage, the heat ageing of material, low melting point weld cracking, the solder joint of shot-light come off.
In addition, the Heat Conduction Material that in heat radiation, adopts, a lot of LED manufacturers still use heat-conducting silicone grease as the heat conduction packing material always.The heat-conducting silicone grease that adopts is as the heat conduction packing material, it is along with the light fixture working time prolongs, and the main component silicone oil volatilization slowly of the inside becomes dry to the end, its heat conductivility will reduce greatly, has dispelled the heat affecting the normal of light fixture. and at this moment the life-span of light fixture is also and then influenced.
Radiating treatment has become one of vital challenge in the design of LED shot-light, promptly tighten at framework, under the more and more littler situation in operating space, how to solve the heat radiation of LED, the heat that PN junction is produced can distribute as soon as possible, not only can improve the luminous efficiency of product, also improve reliability of products and life-span simultaneously.In view of LED to the having relatively high expectations of radiating condition, the limit value if the PN junction junction temperature is above standard, LED will aggravate light decay, reduces luminous efficiency, even quits work.So, improve the light efficiency of LED shot-light, in fact just need to solve the heat dissipation problem of LED.
In addition, the preparation method of white light LEDs main flow is that blue-light LED chip excites the YAG:Ce3+ yellow fluorescent powder.Can obtain the higher white light of luminous flux and luminous efficiency.Shortcoming is the white light that is difficult to obtain low colour temperature high-color rendering, owing to lack the ruddiness composition in the spectrum, so colour temperature height and colour rendering is poor.At present, the scheme that blue-light LED chip and YAG:Ce3+ yellow fluorescent powder mix is difficult to be implemented in 4, low colour temperature and Ra that 000K is following〉white light of 80 high-color renderings.The color drift of great power LED is not only by the aging institute of fluorescent material and is caused that main factor is the variation of material itself.Encapsulating material (as silica gel etc.) aging easily under the irradiation of ultraviolet light, the lost of life can cause the color drift of LED serious.Do not hinder eyes for the LED lamp is sent, give the comfortable warm white light of human eye perceives, just need to improve the LED colour rendering.
The utility model content
The purpose of this utility model is to provide a kind of LED shot-light, and it solves the difficult problem of LED heat radiation, shortens the heat radiation approach of LED, improves the LED light efficiency, improves the LED colour rendering, makes it send soft warm white light, does not hinder eyes, gives human eye perceives comfortable.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the LED shot-light of high light efficiency and high-color rendering, comprise the line box, be provided with driving power in the line box, the sidepiece of described line box is provided with lamp holder, the rear portion of lamp holder is provided with metal heat sink, the front of described metal heat sink is provided with line layer, the front of metal heat sink is provided with several circular grooves, be provided with RGB three-primary color LED chip in the described circular groove, metal heat sink is provided with the led chip solder joint that is electrically connected with line layer in the both sides of each circular groove, the led chip solder joint is electrically connected by lead the two poles of the earth with RGB three-primary color LED chip.
Be filled with thermal conductive insulation glue between described RGB three-primary color LED chip and the circular groove.
The top of described line box is provided with guide-rail coupling member.
Described metal heat sink is made by aluminium, is column, and its side face is evenly equipped with fin.
Owing to adopted above-mentioned structure, LED shot-light of the present utility model is encapsulated into RGB three-primary color LED chip in the metal heat sink, forms LED and metal heat sink firming body, and it has following beneficial effect:
(1), directly is encapsulated on " metal heat sink " owing to " RGB three-primary color LED chip ", take the vertical, horizontal radiating treatment, area of dissipation increases, and can effectively solve the drawback of the heat radiation difficulty of LED existence, junction temperature when having effectively reduced LED work avoids causing the irreversibility light decay;
(2), aspect the production of LED shot-light, because " RGB three-primary color LED chip " is potted directly on " metal heat sink ", can save raw material such as aluminium base and heat-conducting silicone grease, in the production of LED shot-light, reduce by three road manufacturing procedures at least simultaneously, be suitable for the LED shot-light and produce in batches;
(3), add the fluorescent material technology with traditional blue light and compare, adopt " RGB three-primary color LED chip " to be potted directly on " metal heat sink ", its light efficiency height, the colour rendering index height, light decay is low;
(4), adding the fluorescent material technology with traditional blue light compares, adopt " RGB three-primary color LED chip " to be potted directly on " metal heat sink ", owing to do not need encapsulating materials such as fluorescent material, bad problems such as encapsulating material such as fluorescent material is aging can not occur, can solve the problem of colour temperature drift effectively;
(5), since " RGB three-primary color LED chip " be potted directly on " metal heat sink ", the LED shot-light reaches 80000 hours service life;
(5), LED is cold light source, photochromic soft, free from glare contains some pernicious gases unlike other light source, and the recyclable utilization of LED waste products, is real green energy conservation product;
(6), led light source is that a kind of high hardness resin illuminator but not tungsten filament glass etc. damage light source easily, so seismic force is higher relatively, the environment temperature adaptive faculty is strong;
(7), the LED shot-light switching response time is short, no stroboscopic phenomenon, low colour temperature (about 3000K), soft warm white light is not hindered eyes, and is comfortable to human eye perceives;
(8), the dustproof and waterproof grade that adopts of LED shot-light is up to IP54, LED shot-light light source electrical equipment is integrated, install simple, easy maintenance;
(9), since " RGB three-primary color LED chip " be potted directly on " metal heat sink ", effectively solved the heat dissipation problem of LED shot-light, improve the LED luminous efficiency exactly; Under this prerequisite, sustainment rate 〉=96% of sustainment rate 〉=98%, the 10000 hour luminous flux of 5000 hours luminous fluxes of LED shot-light;
(10), than energy-conservation more than 70% with traditional shot-light of illumination;
(11), because " RGB three-primary color LED chip " is potted directly on " metal heat sink ", and the heat radiation approach shortens, and light fixture adopts the directional type radiating treatment, the heat that produces when making shot-light work conducts to shell rapidly;
(12), the constant-current driving power supply of shot-light has over-voltage over-current protection, the anti-surge surge protection of start, good functions such as EMI processing; Have the PFC circuit for rectifying, have higher power factor, improve the utilization rate of whole electrical network;
(13), guide-rail coupling member can be convenient to LED shot-light described in the utility model is installed on the guide rail, is convenient to move and adjust the position of LED shot-light like this.
Description of drawings
Fig. 1 is the stereogram of the LED shot-light of high light efficiency and high-color rendering.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.
As shown in Figure 1, the LED shot-light of high light efficiency described in the utility model and high-color rendering comprises line box 6, is provided with driving power in the line box 6.The top of described line box 6 is provided with guide-rail coupling member 7, and guide-rail coupling member can be convenient to LED shot-light described in the utility model is installed on the guide rail, is convenient to move and adjust the position of LED shot-light like this.The sidepiece of described line box 6 is provided with lamp holder 1, and the rear portion of lamp holder 1 is provided with metal heat sink 2, and metal heat sink 2 is made by aluminium, is column, and its side face is evenly equipped with fin, and fin can increase the area that radiator contacts with air, further strengthens radiating efficiency.The front of described metal heat sink 2 is provided with line layer, the front of metal heat sink 2 is provided with several circular grooves 4, be provided with RGB three-primary color LED chip 3 in the described circular groove 4, metal heat sink 2 is provided with the led chip solder joint 5 that is electrically connected with line layer in the both sides of each circular groove 4, led chip solder joint 5 is electrically connected by lead the two poles of the earth with RGB three-primary color LED chip 3.
Be filled with thermal conductive insulation glue between described RGB three-primary color LED chip 3 and the circular groove 4, the effect of thermal conductive insulation glue is to increase heat transfer efficiency, increases radiating efficiency.
The utility model is when concrete encapsulation, go up setting " circular groove " in " metal heat sink ", in " RGB three-primary color LED chip " placement " circular groove ", between " RGB three-primary color LED chip " and " circular groove ", be filled with thermal conductive insulation glue, both sides at " circular groove " are provided with " led chip solder joint ", " led chip solder joint " is arranged on " metal heat sink ", the P of RGB three-primary color LED chip, the N utmost point is fixed on " led chip solder joint " by playing the gold thread connection or deciding machine group with group, makes copper foil circuit according to the actual production requirement in " metal heat sink " then.Take this method for packing, RGB three-primary color LED chip and metal heat sink become one " LED and metal heat sink firming body ".Compare with " LED → pcb board (aluminium base) → thermal conductive insulation glue → metal shell → lamp body is outer " heat radiation approach, adopt the heat radiation approach of the shot-light of this method for packing design to be " LED and metal heat sink firming body → lamp body are outer ", the step of only need dispelling the heat together just can solve the heat dissipation problem of LED shot-light.Adopt the light fixture good heat dissipation effect of such method for packing, the temperature when effectively reducing RGB three-primary color LED chip operation can improve LED luminous efficiency, colour rendering and service life effectively.
In a word; though the utility model has exemplified above-mentioned preferred implementation; but should illustrate; though those skilled in the art can carry out various variations and remodeling; unless such variation and remodeling have departed from scope of the present utility model, otherwise all should be included in the protection domain of the present utility model.

Claims (4)

1. the LED shot-light of high light efficiency and high-color rendering, it is characterized in that: comprise line box (6), the line box is provided with driving power in (6), the sidepiece of described line box (6) is provided with lamp holder (1), the rear portion of lamp holder (1) is provided with metal heat sink (2), the front of described metal heat sink (2) is provided with line layer, the front of metal heat sink (2) is provided with several circular grooves (4), be provided with RGB three-primary color LED chip (3) in the described circular groove (4), metal heat sink (2) is provided with the led chip solder joint (5) that is electrically connected with line layer in the both sides of each circular groove (4), led chip solder joint (5) is electrically connected by lead the two poles of the earth with RGB three-primary color LED chip (3).
2. according to the LED shot-light of described high light efficiency of claim 1 and high-color rendering, it is characterized in that: be filled with thermal conductive insulation glue between described RGB three-primary color LED chip (3) and the circular groove (4).
3. according to the LED shot-light of claim 1 or 2 described high light efficiencies and high-color rendering, it is characterized in that: the top of described line box (6) is provided with guide-rail coupling member (7).
4. according to the LED shot-light of claim 1 or 2 described high light efficiencies and high-color rendering, it is characterized in that: described metal heat sink (2) is made by aluminium, is column, and its side face is evenly equipped with fin.
CN2010206575828U 2010-12-14 2010-12-14 LED spotlight with high lighting effect and high color rendering property Expired - Fee Related CN201935051U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206575828U CN201935051U (en) 2010-12-14 2010-12-14 LED spotlight with high lighting effect and high color rendering property

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206575828U CN201935051U (en) 2010-12-14 2010-12-14 LED spotlight with high lighting effect and high color rendering property

Publications (1)

Publication Number Publication Date
CN201935051U true CN201935051U (en) 2011-08-17

Family

ID=44446570

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010206575828U Expired - Fee Related CN201935051U (en) 2010-12-14 2010-12-14 LED spotlight with high lighting effect and high color rendering property

Country Status (1)

Country Link
CN (1) CN201935051U (en)

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C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110817

Termination date: 20121214