LED market analysis data show that in 2011 the global LED market value reached $ 16.6 billion, the scale of the whole industry is still expanding. The entire product system, more than 60% of the production of market failures and more than 70% of rework due to device failure, but most companies have failed to adopt systematic electronic reliability engineering methods to solve, leading to product quality is not high, life is not long. China's lighting industry has been price and other factors, is obviously insufficient to extend the life of the product design. In view of this, it can be predicted that in the development process of the LED industry, how to assess and improve the service life of LED products will become the subject of a new round.
Life as an important indicator of
Reliability engineering, testing, evaluation and improvement of product reliability can be increased by more than 10 times.
The life of LED Tunnel Light 100W products including factors such as quality and reliability of the product, which product reliability is a key element affecting the life of the product. Reliability refers to the ability to complete the required functionality within the product specified conditions and the prescribed time. Result in poor product quality and reliability of the main reasons for the low level of design, lack of experience in hardware applications, the lack of electronic reliability of systems engineering methods and other factors. Practice has proved that the use of appropriate reliability engineering techniques to test the product, evaluate and improve the product reliability can be increased by more than 10 times, thereby extending the life of the product.
At present, many companies in the face of intense domestic competition, but also expanding foreign markets to increase exports to European countries and the United States. The European Union and the United States introduced a number of directives and standards for LED lighting. For example, the U.S. Department of Energy and the EPA jointly issued the "Energy Star" Act, the overall led 10w life to 25,000 hours of use but also to maintain at least 70% of the initial luminous flux. North American Lighting Association issued the LM-80-08 LED product standards to regulate the testing methods, how to test the product rated lumen maintenance of life "to be clearly defined. In Europe, specifically for the assessment standards for LED products are being developed, specific criteria are as follows: lighting performance requirements of standard IEC 62722-1 and IEC 62722-2-1 standard high power led module performance requirements of the IEC 62717, since the town stream LED bulbs performance requirements of standard IEC 62612, the LED drive performance requirements of the standard is IEC / EN 62384. These standards are officially promulgated and implemented, led 3w products will receive a comprehensive assessment. In addition to the current safety requirements, energy efficiency requirements, covering performance requirements, the life of the product will also be an important indicator of assessment.
Optimal Design of an immediate impact
To improve reliability, extend product life, domestic and foreign standards, and do some improvements on the LED products.
For the enterprises themselves, in order to improve reliability, extend product life, domestic and foreign standards, and to do some improvements on LED products. For example, reducing the temperature of the product in use, to improve the reliability of the product to extend the life of the product, can play an immediate effect.
In the heat, the traditional way is to add a heat sink. Optimize the design of led 1w products with the tapered shape designed to achieve. First of all, because the cone can form a variety of ventilation ducts to help the bulb to transfer heat, cooling effect. Second, a reasonable choice of devices, the test excluding unqualified or early failure help to improve the reliability of the product. In addition, a reasonable process improvement also help to improve the life of the product. Simply put, is to reduce the stress on the device through standard and reasonable process, thereby strengthening the product performance and improve the durability of the LED products.
In general, improve product reliability can effectively improve product quality, and produce more cost-effective for companies to create more economic benefits. At the same time, fair, reliable certification will increase the credibility of these products to help businesses more smoothly into the European market.