日期：2012年6月19日

Key technical bottleneck in track led lighting have new breakthrough

Over the past few years, prospect of LED develops fast but the household popularity of the process is very slow. “This is not just a price, production or other issue. In addition to consumer recognition problem, there are a number of technical bottleneck.” According to the China Illuminating Engineering Society director Wang Jinsui introduces, this leads to a commercially available track led lighting beans gall lights, LED down light, LED lamps, compared with traditional lamps, it still has very big difference, fass less well than said.

At present, the domestic market oriented with Trinity form of LED products. One of the three major key elements: source, drive power, heat dissipation. The light source is the part of the core products, chip technology mastered by Europe and the United Stated and Japan. Most domestic enterprises adopt buy the assembling way. Therefore, although the LED illumination threshold is not high, yet if you want to do well, it is necessary to solve two key problems–heat dissipation, driving power supply. In contrast, drive power challenges focused on outdoor lighting environment, while heat dissipation is for home used light to enter a large obstacle. According to industry sources, in Zhongshan Ancient Town, there are many LED assembly business, simply to put the track led lighting source assembly into the traditional lamp.  Heat, light and a two optical design is not just as one wishes. Life span can not obtaion the ideal value also.

LED cooling is not good, which will cause the light, and life span shorten. In the current exhibition, the reporter found that the technical problems have had new breakthrough. From the friends of Shenzhen completely subverb the ordinary LED heat, they first introduce the new fin type LED interior lighting series, modeling include ceiling lamp, cast light lamps. According to its general manager, it can save aluminum 4% or more above. The weight is the 1/3 of the traditional lamps. Through more efficient heat conduction and heat radiation, in order to meet the domestic LED relability and life requirements. According to several hundred watts of power LED heat problem, a new research — micro slot cluster compound phase-change cooling technology, become this year’s show is a prominent spot in this study.

t8 led light tubes problems

As the price of LED Lights compared to traditional light sources is a great disadvantage, how quickly the advantages of the LED really play out has become practitioners must face technical problems. To really carve out a new semiconductor lighting era, efforts to overcome technical problems but also from the following aspects:

1. to improve the LED (t8 led light tubes) luminous efficiency problems.
The main method of the LED luminous efficiency improving is to improve the structure and manufacturing process of the semiconductor light-emitting material and the LED chip. Since this part of the work requires a strong theoretical basis and advanced semiconductor process equipment, is still relatively difficult to achieve 200 lumens / watt target road. Although the traditional CCFL lamp power consumption is a little higher,  but the luminous efficiency can reach 50-100 lm / W luminous efficiency white LED devices in the nascent only 20lm / W, which doomed is not suitable as an LCD display backlight LED at the beginning. However, white LED Lamps luminous efficiency of an annual increase rate of 60% increase, so far, the luminous efficiency of white LED devices breakthrough 50lm / W, began to reach the practical level.

2. to solve the life problems of high-power light fades.
As lighting, luminous flux of a single LED (t8 led light tubes) output must be large enough to want to increase the flux LED, you must first inject a sufficient electric power. But the temperature rise of the LED chip can not be too high, otherwise the properties, especially the service life will be greatly affected. Clearly, the design of a larger input power LED components and lighting, in addition to the required larger chip, but also must have good thermal structure.

3. reasonable lighting structure design challenges
LED lighting by a number of LED tubes, the discrete nature of its parameters, also a technical issue. In addition to the pre-selection, classification, and try to ensure consistency, we must also design of the lamp structure (including the LED arrangement and location of the layout) and on an appropriate driver circuit, to prevent the occasional energy concentrated and burned part of the LED.

 

t8 led lighting for Miner Lamp

As the substantial increasing in luminous flux of the LED, high-power LED lighting applications become possible in more places. Because of the technology in research and development costs, technical applications, the use of the concept of reason, the cost is still relatively high, but a series of advantages inherent in such energy-saving LED lighting, longevity, safety, environmental protection, maintenance-free, as an application trends replace the traditional lighting can not be stopped. The successful application of high power LED lights (t8 led lighting) source in some special areas of lighting.

Miner belonging to the mine with explosion-proof lamps, miner’s daily working hours as long as 12 hours or more, and therefore the weight of the lamp and the lamp luminous flux,  discharge time and service life have high requirements for these indicators are often conflicting, requirements such as the lamp luminous flux, you need to improve the color temperature of light bulbs or increase the power of the bulb, but increase the bulb color temperature will greatly reduce its use life, frequent bulb replacement, increases security risks.

t8 led lighting for Miner Lamp

Increasing the lamp power is bound to increase the battery capacity to ensure the continuous miner working hours, the result is the lamp size and weight increase, the inconvenience to the miners to carry and work, so the miner use incandescent bulbs.

LED miner’s lamp has the following advantages:
1. using the most advanced fourth generation of solid state light source, the life of theoretically up to 100,000 hours.

2. the beginning of illumination (1 meter) up to 1200lux, lighting 11 hours after the illumination is still greater than 600lux effective in improving the working conditions of miners.

3 new high energy battery, small size, large capacity, and once fully charged, continuous illumination of not less than 15 hours.

Completely changed the traditional miner’s lamp and battery sub-structure model, weighs less than 200g, wearing very light.

The traditional miner’s lamp incandescent operating temperatures up to 2500 degrees, and high-power LED miner’s lamp LED Street Light(t8 led lighting) source operating temperature only 60 degrees less than that even if the lamp is smashed not detonate gas applications mature lithium power management technology, the fundamental solution to traditional battery short circuit, leakage, explosion risks, therefore, the LED Tubes future (t8 led lighting)in the miner will quickly replace the incandescent lamp miner’s lamp market.