With the continuous improvement of LED application technology and the gradual decline of cost, LED lamps have become more and more widely used in mass production vehicle systems after the initial stage of technical verification and concept car display in automotive electronics. Good prospects. Starting from the full use of LED lights in the Audi R8 electronic system, companies such as Mercedes-Benz, BMW, Cadillac, and Toyota have also introduced their own LED lights to replace traditional incandescent and HID-lighted car models. Various colorful LED lamps are used to enhance the color of new cars. Less, it has attracted the attention of consumers. At the same time, it also provides a new bright spot for future car design. I believe that more car manufacturers will soon use LED lights as the first choice for car lighting, indicating, backlighting and decoration.
LED is suitable for various lighting applications of automotive electronics, including headlights (high beam and low beam), fog lights, tail lights, brake lights, turn signals, daytime running lights, pedal lights, interior lights, Wide lights, navigation, entertainment systems, instrument backlights and indicators. LED lamps are mainly used in automotive systems with the following advantages: First, high color saturation makes the output light clearer and softer, in line with the characteristics of automotive headlight applications; second, long service life, durability, and strong shock resistance It can last more than 10,000 hours, while the life of traditional halogen lamps is generally around 300 hours. Third, the efficiency is high, and there is less extra loss. Compared with the complicated heat dissipation system of traditional lamps, it can be seen that the heat loss of LED lamps is much smaller. The conversion efficiency can reach more than 85%, especially suitable for the future car to pay attention to energy-saving design concept; Fourth, the response speed is fast, different from traditional incandescent light, HID lamp needs a longer drive lighting delay, more real-time reflection of vehicle conditions and road conditions, stay Give the driver longer judgment time and reduce car safety accidents; fifth, small size, light weight, can achieve smaller and more elaborate lamps, save more space for other models design; sixth, LED lights belong to color Very good light source, no infrared light, ultraviolet light and other light, low heat, radiation, suitable for automotive interior lighting , backlight applications.
The use of LED lights in automobiles is currently concentrated on the use of headlights, taillights, lights, car GPS backlights, etc., especially taillights, which account for about 10% of the entire market.
Five technical challenges
The scale of domestic automotive LEDs currently only accounts for about 10% of the automotive light source market. At present, it is mainly concentrated in high-end vehicle applications. Although the cost of LED lamps continues to decline, to achieve the same level as traditional light sources, it is necessary to gradually increase the quality and output to reduce the cost of LEDs and expand the market share of LEDs in the automotive electronics market.
High cost is not the only factor that delays the application of LED lights in automotive electronics. Some technical performance problems need to be solved. For example, the illumination intensity of a single LED is still insufficient, which makes it impossible to reduce the number of LEDs to reduce the size of the lamps. At the same time, the smaller volume is not conducive to the heat dissipation of the light source. This requires the LED manufacturer to do a good job of thermal management of the product, in order to fully utilize the advantages of the LED, and provide a better state for the life or color rendering of the LED. It can only be counterproductive and reduce the quality of products; the conversion efficiency of LED drive system is also a key issue at present. In high-power applications, many solutions have low conversion efficiency while balancing costs; Automobile electronics are all high-end cars, and most of the high-end cars are controlled by foreign automakers. The selection and certification of LED suppliers by foreign manufacturers is very demanding. It is difficult for domestic LED companies to enter their supply chains. Most of the level still stays within the requirements of civil products, it is difficult to reach the automotive-level application standards, even if Some manufacturers of automotive-grade applications may not have enough production capacity and product consistency, and it is difficult to meet the high-volume demand for mass-produced automobiles.
Therefore, in order to accelerate the occupation of the entire vehicle light source, LED lamps must first solve the problem on these issues, such as thermal management issues, production costs and product consistency issues.
Corn Sheller,Hand Corn Sheller,Corn Sheller Machine,Hand Crank Corn Sheller
Hunan Furui Mechanical and Electrical Equipment Manufacturing Co., Ltd. , https://www.frcornthresher.com