Guangdong Kai Kai launched energy-efficient LED street lamp

Zhuhai City, Guangdong province Kai Electronics Technology Co., Ltd. launched a high voltage control circuit, light control circuit, time control circuit of high efficiency and energy-saving LED street lamp. The utility model has the advantages of simple structure, high efficiency, light weight, good safety performance, good energy saving effect, no pollution, no maintenance and long service life.

In recent years, in the world the voice of energy saving, energy consumption and the tide raging like a storm, electricity load growth, since last year the province has 2/3 (area, city) there are different degrees of power shortage and even blackouts phenomenon, seriously affecting the economic and social development and improve people's living standards. According to statistics, China's lighting electricity consumption has accounted for the total amount of 10% ~ 12%. in accordance with China's "green lighting project", lighting energy saving has become an important aspect of.

At present, the energy saving potential of the lighting is very large, and the general energy saving scheme can save 20 to 35%, and the power consumption of the whole country can be saved by adopting the calculation of the quantity of 20%. To promote energy-saving lighting, not equal to lower the requirements for visual operations and reduce the quality of lighting should be under the premise of ensuring the quality of lighting and illumination standard, ensure the visual requirements without reducing the workplace, and strive to reduce the energy loss in the lighting system, the most effective use of electricity. The energy consumption per unit of illumination and unit area (W/m2.lx) is used as the lighting energy saving index.

With the development of semiconductor technology, high brightness light-emitting diode manufacturing technology breakthrough, the country hopes to promote and gradually replace the light source, high luminous efficiency low light effect light. Zhuhai City, Guangdong province Kai Electronics Technology Co., Ltd. after two years of independent research and development, the successful production of an energy-saving LED street lamp products. The structure of the product is mainly composed of a shell, a radiator, a LED light source, a switching power supply and a constant current IC.

Shell part: cast imported high-quality aluminum with high thermal conductivity, light body appearance part through oxidation and spray treatment, ultraviolet resistance and oxidation, while effectively protecting the long-term light from the sun and rain was beating without discoloration or fade, especially suitable for outdoor use.

Heat dissipation part: at present, there are several forms of heat dissipation of high power LED: natural cooling, installation of fan forced cooling and heat pipe technology. Natural heat dissipation using natural convection air heat conduction and thermal radiation, the installation of forced cooling fan mainly uses forced air convection to achieve heat dissipation, heat pipe cooling mainly use heat pipe as heat sink. The lowest natural thermal cost, reliable structure, easy to be waterproof, but the structure design of the lamp body itself requires high; installing the fan forced cooling heat quickly, but the high cost, high noise, short service life, difficult to do waterproof fan often need to replace the heat pipe cooling; no moving parts, the system is stable, but the cost is high, too not pretty.

Driving part: the core of LED street lamp is the design of switch power supply and the structure of constant current drive. A good electronic products, to ensure the normal work, but also can interfere in other equipment and to ensure the electromagnetic circuit construction mode at work without electromagnetic interference with other equipment -- is the most stable: first constant and constant current, effective protection because the input voltage is too high and refers to the whole lamp current. The value concept, effective protection in the peripheral voltage fluctuated under unstable state LED can work normally, and not safe use because the external voltage and current voltage instability caused by the LED lamp at work and change, effectively reduce the disturbance of peripheral circuit fluctuation characteristics of instability. And affect the life of LED and attenuation performance, currently used LED lamp switch power widely with rectifier and filter circuit, control circuit, sampling circuit, The overcurrent protection circuit and the DC constant current output circuit.

Source: using the white LED chip, the highest light efficiency of this kind of LED light source of mature products has exceeded 85~95lm/W, and the device has low production cost, stable performance, easy to accept the market, high efficiency and energy saving, long life, good color index, cold light source, environment friendly, to replace the traditional high pressure sodium lamp the light source has obvious advantages. LED life is 4 times that of ordinary lamp, LED lamp does not need to be replaced in the past 12 years. In addition, the biggest advantage is to save LED street lights. If the national highway two or more replaced by energy-saving LED street lamps, a year can save electricity consumption of nearly 5 billion kwh. Commuted to save 2 million tons of standard coal, reduce CO2 emissions 1 million tons, reducing emissions of 43 thousand tons of SO2, LED lamp technology, economic, social and environmental benefits will grow with each passing day, more significant.

Author: Guangdong Province, Zhuhai Kai Electronics Technology Co., Ltd.