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One of the most important factors affecting the life and luminous efficiency of LED planar passive (COB planar light source) is the junction temperature. The junction temperature of LED planar light source (COB planar light source) refers to the light emitted by the integrated LED chip The core of LED junction temperature is to solve the problem of heat dissipation ability. The junction temperature of LED planar passive (COB planar light source) is related to the following factors: chip structure, package thermal resistance of LED chip itself, thermal resistance of secondary radiator (especially thermal resistance of lamps, heat sink thermal conductivity and heat dissipation area) The size of the plane light source module and the thermal resistance of the interface of the secondary radiator, the thermal resistance of the aluminum substrate (or ceramic substrate) of the COB plane light source, the structure of the lamp, the rated input power and the ambient temperature of the LED plane light source (COB plane without The lower the junction temperature of the source), the longer the service life. Based on the comprehensive consideration of the light efficiency and life of the LED planar light source module, regardless of the power, the most ideal method is to control the junction temperature of the LED planar light source below 60°C ．To solve the heat dissipation capability is to reduce the junction temperature and reduce the temperature rise:
1. Improve the electro-optical conversion efficiency of LED chips, so that as much input power as possible can be converted into light energy
2. Reduce the thermal resistance between the LED chip and the heat sink of the peripheral lamps, thereby improving the heat dissipation capacity of the LED chip and foreign lamps
3. The reasonable space design of the lamps, the use of shell materials and COB planar light source substrate materials, the purpose is to reduce the thermal resistance of LED planar light sources (COB planar passive).
Shenzhen Aihongyang Lighting Co., Ltd. is a high-tech energy-saving company specializing in the production of COB LED planar light sources. The company has 6 automated production lines with a daily output of 400K. The main advantageous products are LED lighting matrix packaging and LED lighting lamps. The company relies on LED With many years of experience in LED application in the electronic packaging industry, we have a production team developed by experts, masters and senior engineers. Products and services, dedicated to the application of LED T5, T8, T10 fluorescent lamps, LED ceiling lamps, LED bulb lamps, LED spotlights, LED downlights and other lamps; dedicated to LED light sources and products with low light decay and long life services. Continuous innovation in LED application products. The enterprise adheres to the principle of "integrity and sustainability", treats products with monographs, treats customers with sincerity, and acts as a model of honest management with the determination to build a century-old enterprise. Realize the perfect combination of the company's planar light source and traditional lamps, and contribute high-quality and low-cost products to the LED industry.