CN102661541B - LED light engine module - Google Patents

LED light engine module Download PDF

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Publication number
CN102661541B
CN102661541B CN201210119041.3A CN201210119041A CN102661541B CN 102661541 B CN102661541 B CN 102661541B CN 201210119041 A CN201210119041 A CN 201210119041A CN 102661541 B CN102661541 B CN 102661541B
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China
Prior art keywords
substrate
led
led chip
light
layer
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Expired - Fee Related
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CN201210119041.3A
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Chinese (zh)
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CN102661541A (en
Inventor
郑永生
赵巍
石阳
肖国胜
张亮
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JIANGYIN HAOHAN PHOTOELECTRIC TECHNOLOGY CO LTD
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JIANGYIN HAOHAN PHOTOELECTRIC TECHNOLOGY CO LTD
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Priority to CN201210119041.3A priority Critical patent/CN102661541B/en
Publication of CN102661541A publication Critical patent/CN102661541A/en
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Abstract

The present invention relates to a kind of LED light engine module, described module includes LED die set light source (1), secondary optical lens (2), radiator (3) and power supply (4), described LED die set light source (1) includes substrate (1.5), described substrate (1.5) is welded with multiple LED chip (1.1), described substrate (1.5) is also provided with a box dam (1.2), described LED chip (1.1) is all positioned in the middle of this box dam (1.2), described secondary optical lens (2) gland is in LED chip (1.1), the substrate (1.5) of described LED die set light source (1) is fixed on the top of radiator (3), and be provided with silica gel pad (3.1) between LED die set light source (1) and substrate (1.5), described power supply (4) is fixed on the sidewall of radiator (3), and power supply (4) is electrically connected with the printed wire on substrate (1.5).LED light engine module of the present invention, specular removal and be easy to assembling and safeguard.

Description

LED light engine module
Technical field
The present invention relates to a kind of LED light engine module, belong to lighting technical field.
Background technology
Light emitting diode (Light Emitting Diodes, LED) has the significant advantage such as energy-saving and environmental protection, long-life and is widely used in the fields such as road lighting, room lighting, special lighting.Current China electric consumption on lighting accounts for 12% of national electricity consumption total amount, and China's electric power about 81% is still thermal power generation, and consume huge to raw coal, produce the noxious gas emission such as a large amount of flue dust, CO2, SO2, environmental pollution is very serious simultaneously.Wherein, the main body of electric consumption on lighting is city illumination, and along with the further maturation of LED technology and the continuous decrease of cost, energy-efficient LED replaces traditional high-pressure mercury lamp becomes New Energy-saving Tendency gradually; Compared with high-pressure mercury lamp, LED all has obvious advantage in energy-conservation, life-span, colour rendering index, environmental protection, light utilization, start-up time etc.LED street lamp light efficiency at present for road lighting is commonly 70-80lm/W, usually adopts the LED of 200W-250W and the high-pressure mercury lamp of alternative traditional 400W, than conventional high-tension sodium vapor lamp power saving 37.5%-50%.
Current LED street lamp light fixture mainly contains the product in two kinds of technology path directions: " multiple spot configuration " and " modularity " LED street lamp.Wherein, the frame mode that " multiple spot configuration " LED street lamp structure is taked " radiator+many independently 1 ~ 3W LED light source connection in series-parallel+PC/PMMA lens+dustproof glass cover+driving power ", this structure has many defects: 1. many independent LED light source connection in series-parallel, and single inefficacy easily causes whole LED lamp to lose efficacy; 2. PC/PMMA lens transmission is low, uvioresistant ability, cannot directly cruelly leak in atmosphere, and needing increases cover glass cover; 3. dustproof glass cover is frangible, light transmittance is low; These defects cause this structure LED street lamp light efficiency generally (whole light effect be about 70 ~ 80lm/W) on the low side, not the open defect such as easy care.Another kind of " modularity " LED street lamp structure takes " radiator+several high-capacity LED module integrated optical source (50W, 80W, the module integrated optical sources such as 100W)+glass lens " frame mode, this structure has a lot of defect equally: no matter be 50W, 80W, 100W LED module integrated optical source, all pass through 50, 80, 100 LEDs chips concentrate in a support, connected by gold thread, gold thread very easily ruptures, high-capacity LED module caloric value is concentrated simultaneously, the undesirable LED street lamp light decay that causes of radiating effect is serious, life-span is much smaller than 30 of nominal, 000 hour, and because of the not high not easy care equally of each device integration.Therefore, two kinds of mainstream technology directions of current LED street lamp have that light efficiency is low, the life-span is short, complex manufacturing and the large defect of later maintenance difficulty.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, provide a kind of specular removal and the LED light engine module being easy to assembling and safeguarding.
The object of the present invention is achieved like this: a kind of LED light engine module, described module includes LED die set light source, secondary optical lens, radiator and power supply, described LED die set light source includes substrate, described substrate is welded with multiple LED chip, described substrate is also provided with a box dam, described LED chip is all positioned in the middle of this box dam, described secondary optical lens gland is in LED chip, and be provided with layer of silica gel and phosphor powder layer between described secondary optical lens and LED chip, described phosphor powder layer is covered in LED chip, described layer of silica gel is covered on phosphor powder layer, the substrate of described LED die set light source is fixed on the top of radiator, and is provided with silica gel pad between LED die set light source and substrate, and described power supply is fixed on the sidewall of radiator, and the printed wire on power supply and substrate is electrically connected.
LED light engine module of the present invention, described substrate is metal substrate or ceramic substrate.
LED light engine module of the present invention, described LED chip upside-down mounting is arranged on substrate.
LED light engine module of the present invention, the material of described secondary optical lens is optical grade PC or PMMA, described secondary optical lens is coated with the anti-reflection film that thickness is 1um.
LED light engine module of the present invention, described anti-reflection film is SiO 2thin layer or TiO 2thin layer.
LED light engine module of the present invention, described LED chip is blue-light LED chip, the Y of the material of described phosphor powder layer to be granular size be 14 ~ 17um 3al 5o 12: Ce 3+yellow fluorescent powder.
LED light engine module of the present invention, described LED chip is blue-light LED chip, the material of described phosphor powder layer to be the β-SiAlON green emitting phosphor of 14 ~ 17um and granular size the be CaSiAlN of 5 ~ 10 μm 3: Eu 2+the mixture of red fluorescence powder.
LED light engine module of the present invention, described layer of silica gel is the transparent silicon glue-line that refractive index is greater than.
LED light engine module of the present invention, the thickness of described silica gel pad is 1mm, and thermal conductivity factor is 1W/m.k.
LED light engine module of the present invention, the supply line of described LED chip and power supply is in series with an infrared switch.
Compared with prior art, the invention has the beneficial effects as follows:
Relative to prior art, LED light engine module of the present invention abandons the structure " 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 " that traditional LED street lamp adopts " multiple spot configuration " and " LED module ".And adopt optical grade PMMA lens surface to plate SiO 2or TiO 2secondary optical lens is directly exposed in air by the mode of anti-reflection film, effectively can reduce because lens material light transmittance is low and cloche hinders loss to light, significantly promote the luminous efficiency of LED street lamp; Simultaneously, by directly forming the 10W LED light engine unit that has optics, electricity, radiator structure in the mode of radiator side fixed L ED constant-current supply, and the more high-power LED street lamp as 30 ~ 200W can be carried out using this photo engine module as elementary cell.Simplify fixing link, and in the maintenance process of later stage practical application, directly can replace the maintenance that this module realizes simple and fast.
And the chip in this LED light engine module is directly welded on MCPCB substrate by reverse installation process, traditional LED street lamp can be avoided to adopt multiple chips to form the problems such as the reliability of gold thread in high-power die set light source process is low by gold thread connection in series-parallel, significantly promote the service life of LED street lamp.Meanwhile, can control as the control devices such as infrared induction, photoinduction, wireless network realize more intelligentized LED street lamp by further integrated more control device in this design basis.Therefore, the present invention not only can solve traditional LED street lamp complex manufacturing and the large technical barrier of later maintenance difficulty, and greatly can improve life-span and the luminous efficiency of LED street lamp.
Accompanying drawing explanation
Fig. 1 is the assembly structure schematic diagram of LED light engine module of the present invention.
Fig. 2 is Fig. 1's of LED light engine module of the present invention partial enlarged drawing.
Wherein:
LED die set light source 1, secondary optical lens 2, radiator 3, power supply 4;
LED chip 1.1, box dam 1.2, layer of silica gel 1.3, phosphor powder layer 1.4, substrate 1.5;
Silica gel pad 3.1.
Detailed description of the invention
See Fig. 1 and Fig. 2, a kind of LED light engine module that the present invention relates to, described module includes LED die set light source 1, secondary optical lens 2, radiator 3 and power supply 4, it is metal substrate MCPCB or ceramic substrate that described LED die set light source 1 includes this substrate 1.5 of substrate 1.5(), described substrate 1.5 is welded with LED chip 1.1 upside-down mounting described in multiple LED chip 1.1(to be arranged on substrate 1.5), described substrate 1.5 is also provided with a box dam 1.2, described LED chip 1.1 is all positioned in the middle of this box dam 1.2, described secondary optical lens 2 gland is in LED chip 1.1, and be provided with layer of silica gel 1.3 and phosphor powder layer 1.4 between described secondary optical lens 2 and LED chip 1.1, described phosphor powder layer 1.4 is covered in LED chip 1.1, described layer of silica gel 1.3 is covered on phosphor powder layer 1.4, the substrate 1.5 of described LED die set light source 1 is fixed on the top of radiator 3, and be provided with silica gel pad 3.1 between LED die set light source 1 and substrate 1.5, described power supply 4 is fixed on the sidewall of radiator 3, and power supply 4 is connected with the printed wire on substrate 1.5, the LED chip 1.1 be welded on substrate 1.5 is powered.
Preferably, the material of described secondary optical lens 2 is that its light transmittance of optical grade PC or PMMA(is greater than 93%), described secondary optical lens 2 is coated with the anti-reflection film that thickness is 1um, and described anti-reflection film is SiO 2thin layer or TiO 2thin layer;
Described LED chip 1.1 is blue-light LED chip, the Y of the material of described phosphor powder layer 1.4 to be granular size be 14 ~ 17um 3al 5o 12: Ce 3+yellow fluorescent powder, or to be the β-SiAlON green emitting phosphor of 14 ~ 17um and granular size the be CaSiAlN of 5 ~ 10 μm 3: Eu 2+the mixture of red fluorescence powder;
Described layer of silica gel 1.3 is greater than the transparent silicon glue-line of 1.5 for refractive index;
The thickness of described silica gel pad 3.1 is 1mm, and thermal conductivity factor is 1W/m.k;
Described LED chip 1.1 and the supply line of power supply 4 are in series with an infrared switch, and this infrared switch can realize can only close and open LED chip 1.1; Infrared switch detected pedestrian or vehicle by time, can supply line be connected, LED chip 1.1 be lighted and throws light on; When detect do not have pedestrian or vehicle by time, the supply line of LED chip 1.1 can be disconnected, thus serve energy-conservation effect further.

Claims (1)

1. a LED light engine module, it is characterized in that: described module includes LED die set light source (1), secondary optical lens (2), radiator (3) and power supply (4), described LED die set light source (1) includes substrate (1.5), described substrate (1.5) is welded with multiple LED chip (1.1), described substrate (1.5) is also provided with a box dam (1.2), described LED chip (1.1) is all positioned in the middle of this box dam (1.2), described secondary optical lens (2) gland is in LED chip (1.1), and between described secondary optical lens (2) and LED chip (1.1), be provided with layer of silica gel (1.3) and phosphor powder layer (1.4), described phosphor powder layer (1.4) is covered in LED chip (1.1), described layer of silica gel (1.3) is covered on phosphor powder layer (1.4), the substrate (1.5) of described LED die set light source (1) is fixed on the top of radiator (3), and be provided with silica gel pad (3.1) between LED die set light source (1) and substrate (1.5), described power supply (4) is fixed on the sidewall of radiator (3), and power supply (4) is electrically connected with the printed wire on substrate (1.5), described substrate (1.5) is metal substrate or ceramic substrate, described LED chip (1.1) upside-down mounting is arranged on substrate (1.5), the material of described secondary optical lens (2) is optical grade PC or PMMA, described secondary optical lens (2) is coated with the anti-reflection film that thickness is 1um, described LED chip (1.1) is blue-light LED chip, the Y of the material of described phosphor powder layer (1.4) to be granular size be 14 ~ 17um 3al 5o 12: Ce 3+yellow fluorescent powder, or the β-SiAlON green emitting phosphor of the material of described phosphor powder layer (1.4) to be granular size be 14 ~ 17um and granular size are the CaSiAlN of 5 ~ 10 μm 3: Eu 2+the mixture of red fluorescence powder, described anti-reflection film is SiO 2thin layer or TiO 2thin layer, described layer of silica gel (1.3) is greater than the transparent silicon glue-line of 1.5 for refractive index, and the thickness of described silica gel pad (3.1) is 1mm, and thermal conductivity factor is 1W/m.k, and described LED chip (1.1) and the supply line of power supply (4) are in series with an infrared switch.
CN201210119041.3A 2012-04-23 2012-04-23 LED light engine module Expired - Fee Related CN102661541B (en)

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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 Priority date Publication date Assignee Title
CN101457902A (en) * 2008-06-27 2009-06-17 上海耀东光电科技有限公司 LED illumination lamp
CN102237475A (en) * 2010-05-04 2011-11-09 李长会 LED wafer level fluorescent powder coating technology based on organic colloid
CN201724186U (en) * 2010-07-13 2011-01-26 苏伟光能科技(太仓)有限公司 Light engine
CN102392948A (en) * 2011-11-28 2012-03-28 罗业富 Modular high-definition LED (light emitting diode) daylight lamp
CN202660374U (en) * 2012-04-23 2013-01-09 江阴浩瀚光电科技有限公司 Light-emitting diode (LED) optical engine module

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