The development of LED lighting industry, as the ramifications of the LED backlight LED panel light, its light uniformity, no glare, delicate structure to give a lot of people's favorite, is the new trend of modern fashion indoor lighting.
01:The main part of the LED panel light
1. The panel light aluminum frame:
Is the main channel LED cooling, Simple and elegant appearance, you can use ZY0907, die stamping using low mold costs, processing costs are low; die-cast aluminum frame IP rating may be a bit high, surface texture, and overall appearance, but the initial investment cost of mold higher.
2.LED source:
Typically LED lamp beads using 3528, it was 3014 and the use of low cost 5050.3014 and 5050, slightly worse luminous efficiency, the key is its light guide network design problems. 3528 light-efficient outlets common good.
3.LED light guide:
The sides of the LED light refracted through the network so that uniform light derived from the front, the light guide plate is the key point LED panel light quality control. Network design is not good, to see the overall effect on the poor light, usually appear in the middle on both sides of dark light, or light into the Department has occurred with light or dark areas visible locally, and then there are different angles or brightness inconsistent. To improve the efficiency of light guide plate depends mainly on the design of the network, followed by the quality of the plate, but did not need superstition famous line of the plate, the light transmittance between the plates is usually qualified almost the same. General small LED lights are a direct factory to buy the common use of the light guide plate, you do not need to re-proofing design, many manufacturers use the public version of the usual quality standards.
4.LED diffusion plate:
The homogeneous light guide plate export, but also play the role of fuzzy outlets. 2.0 General use acrylic diffusion plate or sheet material PC, PS handicap is lower cost materials, acrylic and high light transmittance higher than PC, acrylic weak brittle anti-aging properties, PC prices slightly expensive, but the anti-aging properties strong. Diffusion plate mounted on the network can not see the future, and the transmission rate to about 90%. Acrylic light transmittance 92%, PC is 88%, PS probably also 80%, we can choose the diffusion plate material according to the needs, for most manufacturers are using acrylic material.
5. Reflective paper:
Reflected off the back corner of the light guide plate in order to improve light efficiency, usually RW250.
6. Rear cover:
The main function is to seal LED panel light, usually with 1060 aluminum, can also play a little cooling effect.
7. The drive power:
There are two kinds of LED driver power supply, one constant current power supply, high efficiency of this mode, PF value up to 0.95, cost-effective; the second is to use a constant voltage with constant current power supply, stable performance, but low efficiency, high cost, generally use this is the main power outlet, the other requires a certification request shall use of safety power supply. In fact, home use constant current power supply is very safe, because users are difficult to reach power, and the use of light itself is safe low voltage.
8. Install the pendant:
Hanging wire, mounting brackets for mounting and other accessories.
From the point of view of quality control, to improve the light efficiency of the additional money in the LED light source and LED light guide plate is the most effective, from the market point of view, the additional money in the aluminum frame cover pendant, etc. you can enhance product quality.
02:LED panel light of the three key technology
Light performance (light): Optical performance of the LED panel lights are mainly related to luminosity, spectral and color and other aspects of performance requirements. According to the latest industry standard "semiconductor light-emitting diode test method", the main emission peak wavelength, spectral radiation bandwidth axial luminous intensity angle, luminous flux, radiant flux, luminous efficiency, chromaticity coordinates, correlated color temperature, color purity and dominant wavelength, color rendering index and other parameters. LED panel lights commonly used white LED, color temperature, color rendering index and illuminance is particularly important, it is an important indicator of the atmosphere and lighting effects, and color purity and dominant wavelength is generally not required.
LED mainstream practice within the industry is later packaged LED chip light source or light source module is formed, when the re-lamp made in light distribution, which is used in the original practice of traditional light sources, because the traditional light source is a 360 ° light. If you want to use the light guide end, Philips is currently the best of traditional lamps do a light loss of 40%. The lamp optical parameters of our many domestic manufacturers of LED downstream applications are in fact optical parameters of the chip or the light source, instead of the optical parameters of the overall lighting of the indicators.
How to better improve the performance of light, it is the world's latest technology in the chip package to do with light, a light guide out of the chip, to maintain maximum light output, so that light loss rate of only 5% -10%. As technology continues to improve, more and more light loss rate will be low, the light source efficiency will be higher. Also with such light fixtures do not need light, relative lamp efficiency will be greatly improved, making it more widely used to functional lighting, forming a considerable scale market channels. Therefore, a good LED supplier, we are a top priority, we do not need to spend a high price to research how to go with our LED light as well, do not need to spend a lot of time and experience allows engineers to use simulation software, the easiest way is to let the white LED suppliers to match. You know, as our engineers to use simulation software, then action is required input and output. Import data input and output the results of the simulation that is preliminary, it requires preliminary data must be accurate in order to correct the rear end of the simulation.
Thermal properties (structure): the lighting of the LED luminous efficiency and power to provide one of the key LED industry, in the meantime, LED PN junction temperature and shell heat issues is particularly important. PN junction temperature of the lamp body temperature the greater the difference, the greater the resistance, along with the light energy is converted into heat energy consumed in vain, and in severe damage to the LED. A good structural engineer, not only to consider the structure of the lamp and LED thermal resistance, but also consider the shape of the lamp is reasonable, fashion, new, of course, reliability and maintainability, and usability, it is necessary to stand designer perspective to think about, but also from the user's point of view to consider products.
Today common technique is the use of aluminum plate package, and chip cooling light conversion efficiency aluminum plate package are present core technology bottleneck, can not effectively control the junction temperature stably maintain a high power light output, and the application will be higher because the chip light efficiency required greater area of the aluminum plate, it will increase the cost and volume of applications, very inconvenient. So how to get out of this misunderstanding new paths is a central feature of the new technology. In keeping costs low and passive cooling of the premise, the use of high heat transfer medium, through new devices / Lamps overall structure, reduce the thermal resistance, junction temperature reduces the PN junction, PN junction work within the allowable operating temperature, keeping the maximum amount of photons output, the minimum requirements are as follows:
(1) Ultra-low thermal resistance material, the overall structure of rapid cooling techniques;
(2) high thermal conductivity, anti-UV packaging technology;
(3) Application of low environmental stress structure technology;
(4) the overall thermal resistance of <20K / W, junction temperature <80 degrees;
(5) LED illumination module temperature controlled at below 65 ℃.
Electrical properties (electronic): If a lighting likened a girl, then with just her meaning, structure is her looks, her heart is electronic. (Always catches the eye of those who look beautiful, stylish beauty who is also true product). People no heart no life, no electronic lighting power is not a good drive power also determine the life of a product. Criteria and parameters electronics often much more complex than the structure, the early R & D effort into relatively large. Current technology trend is changing and updating, one day a kind, the engineers have to spend a lot of effort to learn, absorb and break down, application of new technologies. Electronic pre-plan design, implement medium-term, post-forming process for an entire documented form data which is the design of the most complicated things. For example: a pre-program a power supply design, product profiles, standards based, in accordance with safety standards, electrical performance expectations, process requirements, materials evaluation, testing methods, and so have formed the system files.
LED drive power in the field, and now as an industry leader MOSO company's development path, full of legendary. For the LED industry keen sense of smell, MOSO head Gu Yongde led his team in 2006 began R & D power LED. Today, MOSO world's leading technology has been leading the LED lights intelligent drive the trend, offered to provide the most reliable drive solutions for intelligent LED street light manufacturers, which in turn is a leading concept model.
03:Powerful LED drive power role
LED power supply as the core components of LED lights, like LED heart, LED drive power directly determines the quality of LED lamps.
First, the structural design, outdoor LED drive power must have strict waterproof function, otherwise, can not afford outside harsh environment.
Secondly, LED drive power lightning protection is also crucial. The outside world will inevitably encounter when working thunderstorms, lightning protection function if no drive power, will directly affect the LED lamp life, increase lamp maintenance costs.
Finally, on the selection of raw materials, its reliability must meet the needs of its life, the functional properties required good enough.
Currently LED chip theory of life is about 100,000 hours, life-limited parts and components industry To match, select key components must be perfect DMT, DVT verification management to ensure long life and reliability requirements, or life is not enough power, lamp life will not be achieved.
01:The main part of the LED panel light
1. The panel light aluminum frame:
Is the main channel LED cooling, Simple and elegant appearance, you can use ZY0907, die stamping using low mold costs, processing costs are low; die-cast aluminum frame IP rating may be a bit high, surface texture, and overall appearance, but the initial investment cost of mold higher.
2.LED source:
Typically LED lamp beads using 3528, it was 3014 and the use of low cost 5050.3014 and 5050, slightly worse luminous efficiency, the key is its light guide network design problems. 3528 light-efficient outlets common good.
3.LED light guide:
The sides of the LED light refracted through the network so that uniform light derived from the front, the light guide plate is the key point LED panel light quality control. Network design is not good, to see the overall effect on the poor light, usually appear in the middle on both sides of dark light, or light into the Department has occurred with light or dark areas visible locally, and then there are different angles or brightness inconsistent. To improve the efficiency of light guide plate depends mainly on the design of the network, followed by the quality of the plate, but did not need superstition famous line of the plate, the light transmittance between the plates is usually qualified almost the same. General small LED lights are a direct factory to buy the common use of the light guide plate, you do not need to re-proofing design, many manufacturers use the public version of the usual quality standards.
4.LED diffusion plate:
The homogeneous light guide plate export, but also play the role of fuzzy outlets. 2.0 General use acrylic diffusion plate or sheet material PC, PS handicap is lower cost materials, acrylic and high light transmittance higher than PC, acrylic weak brittle anti-aging properties, PC prices slightly expensive, but the anti-aging properties strong. Diffusion plate mounted on the network can not see the future, and the transmission rate to about 90%. Acrylic light transmittance 92%, PC is 88%, PS probably also 80%, we can choose the diffusion plate material according to the needs, for most manufacturers are using acrylic material.
5. Reflective paper:
Reflected off the back corner of the light guide plate in order to improve light efficiency, usually RW250.
6. Rear cover:
The main function is to seal LED panel light, usually with 1060 aluminum, can also play a little cooling effect.
7. The drive power:
There are two kinds of LED driver power supply, one constant current power supply, high efficiency of this mode, PF value up to 0.95, cost-effective; the second is to use a constant voltage with constant current power supply, stable performance, but low efficiency, high cost, generally use this is the main power outlet, the other requires a certification request shall use of safety power supply. In fact, home use constant current power supply is very safe, because users are difficult to reach power, and the use of light itself is safe low voltage.
8. Install the pendant:
Hanging wire, mounting brackets for mounting and other accessories.
From the point of view of quality control, to improve the light efficiency of the additional money in the LED light source and LED light guide plate is the most effective, from the market point of view, the additional money in the aluminum frame cover pendant, etc. you can enhance product quality.
02:LED panel light of the three key technology
Light performance (light): Optical performance of the LED panel lights are mainly related to luminosity, spectral and color and other aspects of performance requirements. According to the latest industry standard "semiconductor light-emitting diode test method", the main emission peak wavelength, spectral radiation bandwidth axial luminous intensity angle, luminous flux, radiant flux, luminous efficiency, chromaticity coordinates, correlated color temperature, color purity and dominant wavelength, color rendering index and other parameters. LED panel lights commonly used white LED, color temperature, color rendering index and illuminance is particularly important, it is an important indicator of the atmosphere and lighting effects, and color purity and dominant wavelength is generally not required.
LED mainstream practice within the industry is later packaged LED chip light source or light source module is formed, when the re-lamp made in light distribution, which is used in the original practice of traditional light sources, because the traditional light source is a 360 ° light. If you want to use the light guide end, Philips is currently the best of traditional lamps do a light loss of 40%. The lamp optical parameters of our many domestic manufacturers of LED downstream applications are in fact optical parameters of the chip or the light source, instead of the optical parameters of the overall lighting of the indicators.
How to better improve the performance of light, it is the world's latest technology in the chip package to do with light, a light guide out of the chip, to maintain maximum light output, so that light loss rate of only 5% -10%. As technology continues to improve, more and more light loss rate will be low, the light source efficiency will be higher. Also with such light fixtures do not need light, relative lamp efficiency will be greatly improved, making it more widely used to functional lighting, forming a considerable scale market channels. Therefore, a good LED supplier, we are a top priority, we do not need to spend a high price to research how to go with our LED light as well, do not need to spend a lot of time and experience allows engineers to use simulation software, the easiest way is to let the white LED suppliers to match. You know, as our engineers to use simulation software, then action is required input and output. Import data input and output the results of the simulation that is preliminary, it requires preliminary data must be accurate in order to correct the rear end of the simulation.
Thermal properties (structure): the lighting of the LED luminous efficiency and power to provide one of the key LED industry, in the meantime, LED PN junction temperature and shell heat issues is particularly important. PN junction temperature of the lamp body temperature the greater the difference, the greater the resistance, along with the light energy is converted into heat energy consumed in vain, and in severe damage to the LED. A good structural engineer, not only to consider the structure of the lamp and LED thermal resistance, but also consider the shape of the lamp is reasonable, fashion, new, of course, reliability and maintainability, and usability, it is necessary to stand designer perspective to think about, but also from the user's point of view to consider products.
Today common technique is the use of aluminum plate package, and chip cooling light conversion efficiency aluminum plate package are present core technology bottleneck, can not effectively control the junction temperature stably maintain a high power light output, and the application will be higher because the chip light efficiency required greater area of the aluminum plate, it will increase the cost and volume of applications, very inconvenient. So how to get out of this misunderstanding new paths is a central feature of the new technology. In keeping costs low and passive cooling of the premise, the use of high heat transfer medium, through new devices / Lamps overall structure, reduce the thermal resistance, junction temperature reduces the PN junction, PN junction work within the allowable operating temperature, keeping the maximum amount of photons output, the minimum requirements are as follows:
(1) Ultra-low thermal resistance material, the overall structure of rapid cooling techniques;
(2) high thermal conductivity, anti-UV packaging technology;
(3) Application of low environmental stress structure technology;
(4) the overall thermal resistance of <20K / W, junction temperature <80 degrees;
(5) LED illumination module temperature controlled at below 65 ℃.
Electrical properties (electronic): If a lighting likened a girl, then with just her meaning, structure is her looks, her heart is electronic. (Always catches the eye of those who look beautiful, stylish beauty who is also true product). People no heart no life, no electronic lighting power is not a good drive power also determine the life of a product. Criteria and parameters electronics often much more complex than the structure, the early R & D effort into relatively large. Current technology trend is changing and updating, one day a kind, the engineers have to spend a lot of effort to learn, absorb and break down, application of new technologies. Electronic pre-plan design, implement medium-term, post-forming process for an entire documented form data which is the design of the most complicated things. For example: a pre-program a power supply design, product profiles, standards based, in accordance with safety standards, electrical performance expectations, process requirements, materials evaluation, testing methods, and so have formed the system files.
LED drive power in the field, and now as an industry leader MOSO company's development path, full of legendary. For the LED industry keen sense of smell, MOSO head Gu Yongde led his team in 2006 began R & D power LED. Today, MOSO world's leading technology has been leading the LED lights intelligent drive the trend, offered to provide the most reliable drive solutions for intelligent LED street light manufacturers, which in turn is a leading concept model.
03:Powerful LED drive power role
LED power supply as the core components of LED lights, like LED heart, LED drive power directly determines the quality of LED lamps.
First, the structural design, outdoor LED drive power must have strict waterproof function, otherwise, can not afford outside harsh environment.
Secondly, LED drive power lightning protection is also crucial. The outside world will inevitably encounter when working thunderstorms, lightning protection function if no drive power, will directly affect the LED lamp life, increase lamp maintenance costs.
Finally, on the selection of raw materials, its reliability must meet the needs of its life, the functional properties required good enough.
Currently LED chip theory of life is about 100,000 hours, life-limited parts and components industry To match, select key components must be perfect DMT, DVT verification management to ensure long life and reliability requirements, or life is not enough power, lamp life will not be achieved.
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