Optimize the design and improve the life of LED lamp

Analysis of data shows that in 2011 LED market, global LED market value reached $16 billion 600 million, the industry scale is expanding constantly. In the whole product system, more than 60% of the production of more than 70% of the market failure and repair are due to device failure caused by, but most companies have no electronic reliability engineering uses a systematic approach to solve, resulting in product quality is not high, the service life is not long. China's electronic lighting industry is affected by many factors, such as price, and so on. In view of this, it can be predicted that in the process of the development of LED industry, how to evaluate and improve the service life of LED products will become a new round of topics.

Optimize the design and improve the life of LED lamp

Service life as an important indicator

Using the appropriate reliability engineering technology to test, evaluate and improve the reliability of products can be increased by more than 10 times.

The service life of LED products mainly includes the quality and reliability of the products, and the reliability of the products is the key factor which affects the service life of the products. Reliability refers to the ability of a product to perform specified functions within specified conditions and within specified time. The main reasons for the poor quality and reliability of the products include the low design level, the lack of experience in the application of hardware, and the lack of methods of electronic reliability system engineering. Practice has proved that the adoption of appropriate reliability engineering technology to product testing, evaluation and improvement, the product reliability can be increased by more than 10 times, and thus extend the life of the product.

At present, many enterprises in the face of fierce domestic competition, but also in the continuous expansion of foreign markets, increase exports to European countries and the United states. The European Union and the United States also issued a number of directives and standards for LED lighting. For example, the United States Department of energy and the Environmental Protection Agency jointly issued the "Energy Star" act, the overall life expectancy of the LED bulb is the use of 25000 hours after the maintenance of at least 70% of the initial luminous flux. North American Lighting Association has issued the LM-80-08 LED product standards, the test method to regulate, how to test the product rated lumen maintenance life to be clearly defined. In Europe, many specialized LED product assessment standards are being developed, the following specific criteria: lighting performance requirements of the standard is IEC 62722-1 and IEC 62722-2-1, the LED module performance requirements of the standard is IEC 62717, self ballasted LED bulb performance requirements of the standard is IEC 62612, IEC/EN 62384 is the LED drive performance standards. After the promulgation and implementation of these standards, LED products will receive a full range of assessment. In addition to the current safety requirements, energy efficiency requirements, coverage requirements, product life will also become an important indicator of the assessment.

Optimal design results

In order to improve the reliability, prolong the life of the products, and meet the domestic and foreign standards, LED products can be improved.

For the enterprise itself, in order to improve reliability, extend product life, in line with domestic and foreign standards, LED products can do some improvements. For example, reduce the temperature in the use of products, to improve the reliability of the product, to extend the life of the product, can play an immediate effect.

The two products are actually quite common, but similar products in the optimized design, can have a higher performance, more novel appearance.

In the heat, the traditional way is to add heat sink. However, the optimized design of the LED product is realized by the cone shape design. First of all, because the cone can form a variety of "ventilation pipe", which helps the bulb transfer heat, heat dissipation effect. Secondly, it is helpful to improve the reliability of the product by choosing the reasonable choice of the device. In addition, reasonable process improvement can also help to improve the service life of the product. In simple terms, it is necessary to reduce the stress of the device through a reasonable process to enhance the performance of the product and improve the durability of LED products.

Generally speaking, to improve the reliability of the product can effectively improve the quality of the product, and produce a higher cost, for the enterprise to create more economic benefits. At the same time, a fair and reliable certification of these products will increase the credibility of enterprises to help enterprises to enter the European and American markets more smoothly.