Choice of thermal conductive materials for heat dissipation design of electronic products
The heat transfer medium materials traditionally used in electronic equipment mainly include thermal grease, thermal conductive silicone tape, soft thermal silica gel pad, thermal conductive mica plate, thermal conductive ceramic sheet, thermal phase change material.
The application of thermal grease is wide and the price is suitable: the insulation is slightly poor and the application is not easy.
The thermal conductive silicone tape has strong tear resistance and good insulation; the heat conduction effect is general, the price is lower, and the economy is practical.
The soft silicone thermal pad has good insulation and thermal conductivity, is flexible, and has strong thickness filling selectivity; the price is slightly higher.
The heat-conductive mica sheet has good insulation performance and is a traditional economical heat-conducting material; it is easy to crack and needs to be matched with thermal grease.
Thermal ceramic sheet, good insulation, high thermal conductivity; large work difference, hard material, need to be used with thermal grease.
Specializing in the production of soft silicone thermal insulation mat (thermal silica gel)
As electronic devices continue to integrate more powerful functions into smaller components, temperature control has become one of the most important challenges in design, namely how to effectively take away when the architecture is tight and the operating space is getting smaller. More heat from larger unit power. The product has a thermal conductivity of 2.55W/mK and a voltage breakdown resistance of more than 4000 volts. It has a certain flexibility, and it is well-bonded between the power device and the heat-dissipating aluminum sheet or machine casing to achieve the best thermal conductivity. And the purpose of heat dissipation, in line with the current requirements of the electronic industry for thermal materials. The soft silicone thermal insulation pad is one of the heat transfer interface materials. It has good thermal conductivity and high level of withstand voltage. Its function is to fill the large requirements between the processor and the heat sink. It is an alternative to thermal grease. The best product for the binary cooling system of mica sheets. These products can be cut at will, which is convenient for automated production and product maintenance. The thickness of the thermal conductive insulating mat of silicone rubber varies from 0.5mm to 5mm, 0.5mm per 0.5mm, that is 0.5mm 1mm 1.5mm 2mm up to 5mm, and the special requirement can be increased to 13mm, which is specially designed for the design of heat transfer through the gap. It can fill the gap, complete the heat transfer between the heat-generating part and the heat-dissipating part, and also play the role of damping insulation and sealing, etc. It can meet the design requirements of miniaturization and thinning of the equipment, and is a new material with great craftability and usability. And the thickness is applicable to a wide range of applications, especially for the electronic equipment industry such as automobiles, displays, computers and power supplies.
Flame retardant and fireproof performance meets UL 94V-0 requirements and complies with EU SGS environmental protection certification. Operating temperature is generally between -50 °C and 220 °C.
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