It can be seen from the LED light decay curve that the light decay of the LED is related to its junction temperature. The higher the junction temperature, the sooner the light decay occurs and the shorter the lifetime.
Therefore, the key to extending the life of the LED is to reduce the junction temperature. The key to lowering the junction temperature is that a good heat sink can dissipate the heat generated by the LED in time.
As a key component of the LED lighting industry supply chain, the improvement of the radiator material, the innovation of the design and the improvement of the process are of great importance to the development of the industry. As the LED light source (light bulb) and power supply industry have gradually matured, in 2014, all major LED lighting manufacturers have shifted their research and development focus to the radiator.
A good heat sink not only has good transmission and heat dissipation functions, but also requires excellent manufacturing and molding processes. At the same time, in the general environment where the radiator is generally reduced in price, in addition to having the above performance, it also needs to have the advantage of cost performance.
To this end, the “Kangrong Cup National LED Heatsink Design Contestâ€, which aims to discover the thermal design of the LED industry, discover innovative design talents, and promote the healthy development of the LED thermal materials industry, has begun to enter the prototype. Cooling effect test phase.
According to the organizing committee, the registration of the “Kangrong Cup†contest, which lasted more than five months, attracted dozens of thermal materials companies to participate in the application. After the preliminary screening of the organizing committee, it was from Sunlight Lighting, Puwan Optoelectronics, and Jiyi Optoelectronics. Dozens of outstanding companies such as Blue One and Metal Products, Kangrong Fine Ceramics, Yaocheng Lighting, Jiamei Times Lighting, Honghui Lighting, Feitai Technology, Zhixin Lighting, etc. were selected to participate in the final heat dissipation performance of finished lamps.
The entry for this competition is the 9W LED Bulb Cooling Kit. The participating companies will use the lamp and power supply provided by the organizing committee to produce 9W LED bulb samples.
The reporter learned from the organizing committee that the LED lamp beads and power supply used in this competition were sponsored by Smect Optoelectronics and Ganxing Microelectronics respectively. At the same time, the third-party testing agency designated by the competition is the excitation testing (LTL), and the designated testing equipment is Fluke FLUKE (Infrared Thermal Imager Ti400).
The contest also invited the CTOs of well-known LED lighting companies such as Sanxiong Aurora, Mulinsen Lighting, Huayi Lighting, BYD Lighting, Lighting, Guangmingyuan, Tongfang Lighting and Guoxing Optoelectronics as judges. At that time, the judges will judge the entries according to the LED lamp bead temperature, heat dissipation effect, heat sink weight, heat sink size, appearance shape, texture, and heat dissipation cost performance.
The prize money is rich, the total prize money is nearly 80,000 yuan, and the prizes are set: one first prize (a prize of 30,000 RMB), two second prizes (a prize of 10,000 RMB), and three third prizes (a bonus of 5000 RMB). Encourage four prizes (bonus 2000RMB).
The on-site jury and awards ceremony will be held on May 16, 2014 at Crowne Plaza Foshan. In the same period, the 2014 China LED Lighting Supply Chain Good Product Tour Foshan Station Seminar will be held.
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