Application Solution Of Thermal Conductive Silicone Sheet In Wireless Charger

The surface of the thermal conductive silicone sheet has certain flexibility, excellent insulation, compressibility and natural viscosity. It is specially designed for the use of gap heat transfer design. It can fill the gap and complete the heat transfer between the heating component and the heat dissipating component. At the same time, it also plays the role of insulation, shock absorption and sealing. Can meet the design requirements of miniaturization of equipment. It has manufacturability and practicality, and its thickness has a wide range of applications. It is a good thermally conductive filler and is widely used in electronic and electrical products. Thermally conductive silicone sheet is a thermally conductive medium used to transfer the surface temperature of a heat source to a heat sink or air.

In order to achieve better heat dissipation efficiency, the wireless charging base is generally made of metal materials and integrated with anti-skid pads, which lays a good foundation for the heat dissipation of internal electronic components and achieves the effect of anti-skid and wear resistance.

In the wireless charging internal coil part, this part includes a part where heat is concentrated in the middle. Therefore, the main temperature probe will be installed in the middle of the coil to ensure that the temperature of the charger is within the safe temperature range.

When the screws of the coil metal substrate are removed, the internal structure of the bottom case of the product can be seen. The bottom shell is integrally formed of metal, which is also the key to heat dissipation. The use of metal is to better conduct the heat inside the product to the outside through the bottom case, so that the internal working temperature is always in a safe state, thereby extending the service life of the product.

Because the bottom case is connected to the wireless charging circuit board, all components are concentrated on one side of the printed circuit board. The circuit board is irregular and there is no direct seamless connection with the bottom case, so the bottom case is pasted with a thermally conductive silicone sheet and conductive foam Fill the gap between the bottom case and the circuit board,

Therefore, the heat of the circuit board is conducted to the bottom case through the thermal conductive silicone sheet and the conductive foam to dissipate heat, and it can also play the role of electromagnetic shielding.