In the long history of human history, no lighting device has been expected to be as mature as LED, but the slow development has also made the LED products too conceptual and lack of customer base. Even though the government is now trying to support the growth of LEDs with LED street lights as a breakthrough, LED customers are still not formed in civilian or commercial customers. At this time there is a dangerous signal: LED manufacturers have put compression costs as the top priority! Many companies have to increase the LED current to reduce the number of wicks while maintaining the brightness to save costs, or to compress the PCB area, or to reduce the safety of the device, of course, we must believe that Chinese companies in terms of compression costs Natural advantages. Not to mention the impact of this on product safety issues. As far as the industrial cluster is concerned, LED has entered the price reshuffle situation without a market, which is unfavorable for the entire industry. Intensify the decline of SMEs.
This is a dangerous situation. On the one hand, the technological development of LEDs will be stagnant or even degraded. On the other hand, the compression of costs, or the excessive cost of attention, cannot guarantee the final product characteristics, and will not display LEDs to a large extent. Advantage. Therefore, I am daring to think that the LED industry development direction is wrong at this time.
In order to open the civilian market, the LED industry now designs LED luminaires in an alternative way, that is, directly replacing existing luminaires. However, in the process of lamp development, in addition to the direct replacement of incandescent lamps with compact lamps, there are few direct replacement modes. T8 and ceiling lamps are almost patents for fluorescent lamps, and chandeliers are still the world of tungsten lamps. Why are LEDs sure? Want to take the road of replacement?
What are the disadvantages of the existing replacement luminaire design?
Heat dissipation
The poor heat resistance of LEDs is well known and will inevitably lead to problems with the life of the wick. The design of existing LED lamps is often difficult to achieve heat dissipation. In a field where heat dissipation is very demanding, it uses very inferior passive heat dissipation methods, and most of them are air-cooled or even closed air-cooled. Like some luminaires, a plastic sleeve is added between the drive plate and the aluminum heat sink to increase the reliability of the insulation. It is also necessary to heat the silicone to improve the heat dissipation capability. The T8 lamp tube is still closed, and the wick can only rely on air convection heat transfer to the aluminum tube on the back of the lamp for heat dissipation. Generally, the internal temperature of such lamps will be seventy to eighty degrees. And if you take into account heat dissipation, weight is a problem; taking into account the weight, heat is difficult to guarantee, which is a dilemma in the existing design, there is no feasible standard.
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