The thermally conductive plastic LED lighting has become popular in heat sink system
It is understood that the current traditional lamp shell heat material mainly consists of the following three types: metal, ceramic and plastic in general. Relative to the metal materials, thermal plastic with heat evenly, light weight, and high safety factor, design flexibility and other characteristics; with respect to the ceramic, thermally conductive plastic sturdy, easy molding processing, higher design freedom; with respect to general plastic, thermal higher expansion coefficient of plastic.
Compared to traditional metal materials, thermally conductive plastic has many advantages, summed up the following four points:
The aluminum density 2700kg / m3, the density of aluminum is larger, and the density is usually in the thermally conductive plastic is 1500 ~ 2000kg / m3, the choice of the thermally conductive plastic heat can significantly decrease the illumination component product (from about 30% to 50%) so that lighting merchandise lightweight and useful means to cut indirect costs of transport.
2. Designing freedom
DOF planning is an outstanding advantage of the organic thermally conductive plastics. The main way to produce die-cast aluminum radiator or stretch forming, in the production process more difficult to process than the messy shape. The organic plastic outstanding mobility, can produce very thin parts, as well as planning even more chaotic shape may be further completed product weight. And injection commodity beautiful, good finish, to complete diversified commodity color without the need for subsequent painting, color, and other processes.
3. mass production
A thermally conductive plastic can be molded without post-processing, simple plan to complete large batch production, complete planning benefits. Useful information after the cut aluminum extrusion deburring, nickel, etc. after the procedure. Together, the mold production cost compared with aluminum and other materials, long life, reducing the processing cycle and cost.
4. Security and simplify the power structure
Aluminum radiator due to its high electrical conductivity, if the choice of non-blocking mode power supply through high pressure is difficult to test aspects of the certification. Thermal insulating properties of plastics, in terms of having a high voltage test positive advantage, making the choice of non-blocking mode power production may become a fixture can not only reduce costs, commodity planning was even more delicate, more important it is to reduce the user during the conductive metal housing safety problems that may occur. Safety and environmental protection, recycling can do, good insulation to ensure the safety of its use.
With the Chinese government pay more attention to this sector, increase the intensity of technological innovation and investment in special materials, LED materials, especially thermally conductive plastic will have a very good prospect and development space.