2023-01-31
LED lamps and lanterns are a popular class of lighting products, which are not only environmentally friendly and energy efficient, but also have a long service life, so since its introduction has been very popular, of course, some factors will affect the service life of LED lamps and lanterns, in the end, what are the factors that affect the life of LED lamps and lanterns? How to effectively improve the heat dissipation effect of LED lighting fixtures? Go together to understand it.
What are the factors affecting the life of LED lamps and lanterns.
1, the quality of the tube core is the primary condition to determine the life of the LED.
In the manufacturing process of LED, other impurities ion pollution, lattice defects and other processes will affect its life, so the use of high-quality LED core is the primary condition.
2, after the process of packaging is reasonable will affect the life of the LED.
LED after the process of packaging is reasonable will affect the life of the LED, at present, several major companies around the world such as Cree, Lumilends, Japan and other higher level of LED packaging have patent protection, the level of these companies after the process of packaging requirements are relatively high, the life of its LED is also guaranteed, but most companies after the process of LED packaging imitation more, from the appearance can be seen, its Process structure and process quality is poor, thus seriously affecting the life of the LED.
3, lamp design is the key issue affecting the life of LED lamps and lanterns.
Reasonable lamp design in addition to meet the other indicators of lamps and lanterns, a key issue is to LED light up the heat generated by the distribution, Cree and other companies of high quality LED original products used in different lamps and lanterns, LED life can vary by several times or even dozens of times, for example, now the market sales of integrated light source lamps and lanterns (a single 30W, 50W, 100W), the light source of these products and Heat dissipation channel contact part of the poor heat dissipation, resulting in some products in the light 1-3 months after the light decay led to more than 50%, some products in the use of 0.07W or so after the small power tube, due to the absence of reasonable heat dissipation mechanism, resulting in light decay very fast, these products low technology, low cost, short life.
4, the power supply of lamps and lanterns is crucial to the life of the LED.
Lamps using a reasonable power supply will also affect its life, because the LED is a current driver devices, if the power supply current fluctuations, or the power supply spike pulse occurs at a higher frequency, will affect the life of the LED light source, the life of the power supply itself depends mainly on whether the power supply design is reasonable, under the premise of a reasonable power supply design, the life of the power supply depends on the life of the components.
As above is a brief introduction on the factors affecting the life of LED lamps and lanterns, as mentioned above, the heat dissipation of LED lighting fixtures will also affect their service life, so in the production of lamps and lanterns, generally try to enhance the period of heat dissipation to ensure the service life of LED lighting fixtures, how to effectively improve the heat dissipation of LED lighting fixtures? Take a look at the following introduction it.
How to effectively improve the heat dissipation of LED lighting fixtures.
1, from the design of the LED chip to consider.
With the development of technology, we can take a more advanced process, the output power consumption will be further reduced, the use of more reasonable heat dissipation structure, improve the junction temperature and heat resistance of the LED chip, reduce the heat dissipation requirements at the same time reduce the heat generated to improve the electrical energy conversion rate.
2，Reduce temperature rise.
In the choice of materials, try to choose heat dissipation materials with outstanding thermal conductivity, in the design, try to rationalize, reduce the heat dissipation path, use better ventilation apertures, reduce the value of temperature rise to less than 30 degrees Celsius, and the heat generated by modular lamps is huge, how to improve its heat dissipation efficiency is a key research direction.
3, research insights into the packaging structure and packaging process.
Select new thermally conductive materials, such as bonding materials between metals, phosphor hybrid glue lights, effectively reduce the thermal resistance of LED devices, reduce the thermal resistance value to 10 degrees Celsius or lower.
4, in the rationalization of the thermal structure at the same time, should consider reducing the cost of heat dissipation.
Can not put the cart before the horse, spend a lot of money to design the thermal structure, shine into the cost is too high, the product cost performance is low, not practical, only in the cost control on the basis of reasonable, the thermal performance to the best, so that the product can be accepted by the market.
These are the factors that affect the life of LED lamps and lanterns and how to effectively improve the heat dissipation of LED lighting fixtures is briefly introduced here, I hope it will help you, want to know more lamps and lanterns related knowledge, quickly to pay attention to it.
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