CN102661541A - Light-emitting diode (LED) light engine module - Google Patents
Light-emitting diode (LED) light engine module Download PDFInfo
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- CN102661541A CN102661541A CN2012101190413A CN201210119041A CN102661541A CN 102661541 A CN102661541 A CN 102661541A CN 2012101190413 A CN2012101190413 A CN 2012101190413A CN 201210119041 A CN201210119041 A CN 201210119041A CN 102661541 A CN102661541 A CN 102661541A
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- photo engine
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- light source
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Abstract
The invention relates to a light-emitting diode (LED) light engine module which comprises an LED module light source (1), a secondary optical lens (2), a radiator (3) and a power supply (4). The LED module light source (1) comprises a substrate (1.5), a plurality of LED chips (1.1) are welded on the substrate (1.5), a box dam (1.2) is further arranged on the substrate (1.5), the LED chips (1.1) are all located in the middle of the box dam (1.2), the secondary optical lens (2) is covered on the LED chips (1.1), the substrate (1.5) of the LED module light source (1) is fixed on the top portion of the radiator (3), a silica gel pad sheet (3.1) is arranged between the LED module light source (1) and the substrate (1.5), and the power supply (4) is fixed on the lateral wall of the radiator (3), and the power supply (4) is electrically connected with a printed wire on the substrate (1.5). The LED light engine module is high in lighting effect, and easy to assemble and maintain.
Description
Technical field
The present invention relates to a kind of LED photo engine module, belong to lighting technical field.
Background technology
(Light Emitting Diodes LED) has significant advantages such as energy-saving and environmental protection, long-life and is widely used in fields such as road lighting, room lighting, special lighting light emitting diode.China's electric consumption on lighting accounts for 12% of national electricity consumption total amount at present, and China's electric power about 81% to the raw coal consume significant, produces noxious gas emissions such as a large amount of flue dust, CO2, SO2 still for thermal power generation simultaneously, and environmental pollution is very serious.Wherein, the main body of electric consumption on lighting is a city illumination, and along with the further maturation of LED technology and the lasting decline of cost, energy-efficient LED lamp replaces traditional high-pressure mercury lamp becomes energy-conservation new trend gradually; Compare with high-pressure mercury lamp, the LED lamp all has remarkable advantages at aspects such as energy-conservation, life-span, colour rendering index, environmental protection, light utilization, start-up times.The LED road lamp efficiency that is used for road lighting at present is commonly 70-80lm/W, and the LED lamp that adopts 200W-250W usually is the high-pressure mercury lamp of alternative traditional 400W, than conventional high-tension sodium vapor lamp power saving 37.5%-50%.
The LED road lamp mainly contains the product of two kinds of technology path directions at present: " multiple spot configuration " and " modularity " LED street lamp.Wherein, " multiple spot configuration " LED lamp post structure is taked the frame mode of " radiator+many independently 1～3W led light source connection in series-parallel+PC/PMMA lens+dustproof glass cover+driving powers "; This structure has many defectives: 1. many independent led light source connection in series-parallel, and single inefficacy is prone to cause the whole LED light fixture to lose efficacy; 2. the PC/PMMA lens transmission is low, and the uvioresistant ability can't directly be leaked in air cruelly, needs to increase the cover glass cover; 3. the dustproof glass cover is frangible, light transmittance is low; These defectives cause this structure LED road lamp efficiency, and generally on the low side (whole light is imitated and is about 70～80lm/W), not open defect such as easy care.Another kind of " modularity " LED lamp post structure is taked the frame mode of " radiator+several high-capacity LED module integrated optical sources (module integrated optical sources such as 50W, 80W, 100W)+glass lens "; This structure has a lot of defectives equally: no matter be 50W, 80W, 100W LED module integrated optical source, all through 50,80,100 LEDs chips are concentrated in the support, connect through gold thread; Gold thread very easily ruptures; High-capacity LED module caloric value is concentrated simultaneously, and the undesirable LED street lamp light decay that causes of radiating effect is serious, and the life-span is much smaller than 30 of nominal; 000 hour, and because of the not high easy care not equally of each device integrated level.Therefore, two of current LED street lamp kinds of mainstream technology directions have that light efficiency is low, the life-span short, complex manufacturing and the big defective of later maintenance difficulty.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, a kind of high light efficiency is provided and is easy to the LED photo engine module assembling and safeguard.
The objective of the invention is to realize like this: a kind of LED photo engine module; Said module includes LED die set light source, secondary optical lens, radiator and power supply, and said LED die set light source includes substrate, is welded with a plurality of led chips on the said substrate; Also be provided with a box dam on the said substrate; Said led chip all is positioned in the middle of this box dam, and said secondary optical lens gland and is provided with silica gel layer and phosphor powder layer between said secondary optical lens and the led chip on led chip; Said phosphor powder layer is covered on the led chip, and said silica gel layer is covered on the phosphor powder layer; The substrate of said LED die set light source is fixed in the top of radiator, and is provided with silica gel pad between LED die set light source and the substrate, and said power supply is fixed on the sidewall of radiator, and the printed wire on power supply and the substrate is electrically connected.
LED photo engine module of the present invention, said substrate is metal substrate or ceramic substrate.
LED photo engine module of the present invention, said led chip upside-down mounting is arranged on the substrate.
LED photo engine module of the present invention, the material of said secondary optical lens is optical grade PC or PMMA, is coated with the anti-reflection film that thickness is 1um on the said secondary optical lens.
LED photo engine module of the present invention, said anti-reflection film is SiO
2Thin layer or TiO
2Thin layer.
LED photo engine module of the present invention, said led chip is a blue-light LED chip, the material of said phosphor powder layer is that granular size is the Y of 14 ~ 17um
3Al
5O
12: Ce
3+Yellow fluorescent powder.
LED photo engine module of the present invention, said led chip is a blue-light LED chip, the material of said phosphor powder layer is that β-SiAlON green emitting phosphor and the granular size of 14 ~ 17um is the CaSiAlN of 5～10 μ m
3: Eu
2+The mixture of red fluorescence powder.
LED photo engine module of the present invention, said silica gel layer be refractive index greater than the transparent silicon glue-line.
LED photo engine module of the present invention, the thickness of said silica gel pad is 1mm, thermal conductivity factor is 1W/m.k.
LED photo engine module of the present invention is in series with an infrared switch in the supply line of said led chip and power supply.
Compared with prior art, the invention has the beneficial effects as follows:
With respect to prior art, LED photo engine module of the present invention is abandoned the structure that traditional LED street lamp adopts " multiple spot configuration " and " LED module " " radiator+many independently the connection in series-parallel of 1～3W led light source or 50～100W die set light source+PC/PMMA lens+dustproof glass cover+driving power ".And adopt optical grade PMMA lens surface to plate SiO
2Or TiO
2The mode of anti-reflection film is directly exposed to secondary optical lens in the air, can effectively reduce because of the lens material light transmittance is low to reach cloche to the loss of light obstruction, promotes the luminous efficiency of LED street lamp significantly; Simultaneously; Mode through the fixed L ED constant-current supply in the radiator side directly forms the 10W LED photo engine unit with optics, electricity, radiator structure, and can carry out the LED street lamp of more high-power as 30～200W with this photo engine module as elementary cell.Simplify fixing link, and can the directly simple and easy maintenance fast of this module realization of replacement in the maintenance process of later stage practical application.
And the chip in this LED photo engine module directly is welded on the MCPCB substrate through reverse installation process; Can avoid traditional LED street lamp to adopt multiple chips to form problems such as the reliability of gold thread in the high-power die set light source process is low, promote the service life of LED street lamp significantly through the gold thread connection in series-parallel.Simultaneously, can be on this design basis control devices such as further integrated more control device such as infrared induction, photoinduction, wireless network realize more intelligentized LED street lamp control.Therefore, the present invention not only can solve traditional LED street lamp complex manufacturing and the big technical barrier of later maintenance difficulty, and can greatly improve the life-span and the luminous efficiency of LED street lamp.
Description of drawings
Fig. 1 is the assembly structure sketch map of LED photo engine module of the present invention.
Fig. 2 is
partial enlarged drawing of Fig. 1 of LED photo engine module of the present invention.
Wherein:
LED die set light source 1, secondary optical lens 2, radiator 3, power supply 4;
Led chip 1.1, box dam 1.2, silica gel layer 1.3, phosphor powder layer 1.4, substrate 1.5;
Silica gel pad 3.1.
The specific embodiment
Referring to Fig. 1 and Fig. 2; A kind of LED photo engine module that the present invention relates to; Said module includes LED die set light source 1, secondary optical lens 2, radiator 3 and power supply 4, and said LED die set light source 1 includes substrate 1.5 (this substrate 1.5 is metal substrate MCPCB or ceramic substrate), is welded with a plurality of led chips 1.1 (said led chip 1.1 upside-down mountings are arranged on the substrate 1.5) on the said substrate 1.5; Also be provided with a box dam 1.2 on the said substrate 1.5; Said led chip 1.1 all is positioned in the middle of this box dam 1.2, and said secondary optical lens 2 glands and are provided with silica gel layer 1.3 and phosphor powder layer 1.4 between said secondary optical lens 2 and the led chip 1.1 on led chip 1.1; Said phosphor powder layer 1.4 is covered on the led chip 1.1, and said silica gel layer 1.3 is covered on the phosphor powder layer 1.4; The substrate 1.5 of said LED die set light source 1 is fixed in the top of radiator 3; And be provided with silica gel pad 3.1 between LED die set light source 1 and the substrate 1.5; Said power supply 4 is fixed on the sidewall of radiator 3; And power supply 4 links to each other with printed wire on the substrate 1.5, and the led chip 1.1 that is welded on the substrate 1.5 is supplied power.
Preferably, the material of said secondary optical lens 2 is optical grade PC or PMMA (its light transmittance is greater than 93%), is coated with the anti-reflection film that thickness is 1um on the said secondary optical lens 2, and said anti-reflection film is SiO
2Thin layer or TiO
2Thin layer;
Said led chip 1.1 is a blue-light LED chip, and the material of said phosphor powder layer 1.4 is that granular size is the Y of 14 ~ 17um
3Al
5O
12: Ce
3+Yellow fluorescent powder perhaps is that β-SiAlON green emitting phosphor and the granular size of 14 ~ 17um is the CaSiAlN of 5～10 μ m
3: Eu
2+The mixture of red fluorescence powder;
Said silica gel layer 1.3 is a refractive index greater than 1.5 transparent silicon glue-line;
The thickness of said silica gel pad 3.1 is 1mm, and thermal conductivity factor is 1W/m.k;
Be in series with an infrared switch in the supply line of said led chip 1.1 and power supply 4, this infrared switch can be realized can only close and open led chip 1.1; Infrared switch detected pedestrian or vehicle through the time, can connect supply line, make led chip 1.1 light and throw light on; When detect do not have pedestrian or vehicle through the time, the supply line that can break off led chip 1.1, thus further played energy-conservation effect.
Claims (10)
1. LED photo engine module; It is characterized in that: said module includes LED die set light source (1), secondary optical lens (2), radiator (3) and power supply (4); Said LED die set light source (1) includes substrate (1.5); Be welded with a plurality of led chips (1.1) on the said substrate (1.5), also be provided with a box dam (1.2) on the said substrate (1.5), said led chip (1.1) all is positioned in the middle of this box dam (1.2); Said secondary optical lens (2) gland is on led chip (1.1); And be provided with silica gel layer (1.3) and phosphor powder layer (1.4) between said secondary optical lens (2) and the led chip (1.1), said phosphor powder layer (1.4) is covered on the led chip (1.1), and said silica gel layer (1.3) is covered on the phosphor powder layer (1.4); The substrate (1.5) of said LED die set light source (1) is fixed in the top of radiator (3); And be provided with silica gel pad (3.1) between LED die set light source (1) and the substrate (1.5); Said power supply (4) is fixed on the sidewall of radiator (3), and the printed wire on power supply (4) and the substrate (1.5) is electrically connected.
2. a kind of according to claim 1 LED photo engine module is characterized in that: said substrate (1.5) is metal substrate or ceramic substrate.
3. a kind of according to claim 1 LED photo engine module is characterized in that: said led chip (1.1) upside-down mounting is arranged on the substrate (1.5).
4. like claim 1 or 2 or 3 said a kind of LED photo engine modules, it is characterized in that: the material of said secondary optical lens (2) is optical grade PC or PMMA, is coated with the anti-reflection film that thickness is 1um on the said secondary optical lens (2).
5. like the said a kind of LED photo engine module of claim 4, it is characterized in that: said anti-reflection film is SiO
2Thin layer or TiO
2Thin layer.
6. like claim 1 or 2 or 3 said a kind of LED photo engine modules, it is characterized in that: said led chip (1.1) is a blue-light LED chip, and the material of said phosphor powder layer (1.4) is that granular size is the Y of 14 ~ 17um
3Al
5O
12: Ce
3+Yellow fluorescent powder.
7. like claim 1 or 2 or 3 said a kind of LED photo engine modules; It is characterized in that: said led chip (1.1) is a blue-light LED chip, and the material of said phosphor powder layer (1.4) is that the β of 14 ~ 17um-SiAlON green emitting phosphor and granular size are the CaSiAlN of 5～10 μ m
3: Eu
2+The mixture of red fluorescence powder.
8. like claim 1 or 2 or 3 said a kind of LED photo engine modules, it is characterized in that: said silica gel layer (1.3) is the transparent silicon glue-line of refractive index greater than (1.5).
9. like claim 1 or 2 or 3 said a kind of LED photo engine modules, it is characterized in that: the thickness of said silica gel pad (3.1) is 1mm, and thermal conductivity factor is 1W/m.k.
10. like claim 1 or 2 or 3 said a kind of LED photo engine modules, it is characterized in that: be in series with an infrared switch in the supply line of said led chip (1.1) and power supply (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210119041.3A CN102661541B (en) | 2012-04-23 | 2012-04-23 | LED light engine module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210119041.3A CN102661541B (en) | 2012-04-23 | 2012-04-23 | LED light engine module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102661541A true CN102661541A (en) | 2012-09-12 |
| CN102661541B CN102661541B (en) | 2015-09-09 |
Family
ID=46771082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210119041.3A Expired - Fee Related CN102661541B (en) | 2012-04-23 | 2012-04-23 | LED light engine module |
Country Status (1)
| Country | Link |
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| CN (1) | CN102661541B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108185652A (en) * | 2017-11-29 | 2018-06-22 | 贵州德鑫冲压有限责任公司 | A kind of infrared induction lifting electric heating tea table |
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| Publication number | Publication date |
|---|---|
| CN102661541B (en) | 2015-09-09 |
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Granted publication date: 20150909 Termination date: 20170423 |