Thermal conductivity of silicone encapsulant heat effect-Iota

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News > Dynamic industry > Thermal conductivity of silicone encapsulant heat effect

Thermal conductivity of silicone encapsulant heat effect

With the rapid development of the LED industry, many manufacturers have begun to develop the LED driver power, in fact, this is also a development trend of the LED industry. Because the LED industry is not very mature, the various parameters of the standard is not perfect, makes a lot of manufacturers test is not very standard, leading to market lighting appear a lot of problems, life can achieve much, decay is not serious, these problems are problems customers are worried.
There is a time to send the sample is not a problem, but the bulk production to customers where there are always several complaints of lights or lights flash problem was very headache, focused on driving power, after testing found the power inside the transformer, IC, capacitance temperature are high. In order to make the drive power supply temperature decline to take a lot of ways, change voltage regulator, change the structure of the lamp cup, for Ruby capacitor and so on. The customers are still not up to the requirements, for example, although only a few watts bulb, but feels very hot.
Later, the company has a new program - irrigation. After filling the glue can be reduced more than 10 degrees, and then the non segregation of both irrigation. Now a lot of the factory is waterproof power glue, or is used in epoxy resin vinyl, very hard, easy to strain components, and anti revisionism. Good power is commonly used thermal conductive silicone encapsulant, thermal conductivity is greater than 0.8 is very good. It is composed of A, B, A and B, which is gradually solidified to form silicone elastomer when 1:1 is mixed. Products can be cured at room temperature, when the heating can also make the curing rate (can be adjusted according to customer requirements of the curing time). It has good mobility, excellent resistance to ozone, ultraviolet ray, aging resistance, and has good flame retardant and heat conduction. Can also improve the waterproof level.
Thermal conductive silicone encapsulant in -60 degree to +250 degree under the environment of long-term use, the electronic components work under harsh conditions. So as to prolong the life of electronic components. (many large and medium-sized enterprises of electronic products are useful to silicone encapsulant)
Hid and molding and potting condensation - type available in the backlight board. Hie ballast, electrical and instrument and meter and other electronic products used as sealing material. Transparent encapsulation glue is also widely used and LED lighting (transmission rate of up to 98%), waterproof lamp, power supply module, electronic controller and other electronic components of potting. Where need to be sealed, sealed packaging, insulation, insulation, electronic and other types of products can be used.

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