How to solve the heat dissipation problem of wireless chargers?
[ Date: 2021-06-09 09:22:04 Author: Popularity: ]
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Wireless charging works through the principle of electromagnetic induction. Since it is a magnetic field cutting method, it will inevitably generate heat. Heat will not only affect the efficiency of the wireless charger, but also conduct heat to the mobile phone. In order to better solve the heat dissipation problem, it is necessary to use metal materials instead of plastic materials for the wireless charging case as much as possible. At the same time, the demand for thermally conductive silicone pad is also very important! 


According to the performance of wireless charger, Dasen recommend 3W/m.K thermal pad.

1. The thermal conductivity of SK30 silicone pad: 3.0W/m.K;


2. Cut according to customers' drawings;

3. Hardness of SK30: 20-50 shore 00;

4. SK30 is resistant to high temperature, works stably in the environment of -40~200℃, has good insulation and compressibility;

5. It meets environmental protection requirements and has passed EU ROHS standards and REACH testing.




Performance advantages of Dasen Electronics 3.0W/m.K thermally conductive silicone pad:

1. Soft, good compression performance, good thermal insulation performance, relatively large adjustable range of the thickness, suitable for filling the cavity, the two sides have natural viscosity, and the operability and maintenance are strong;

2. It can effectively reduce the contact thermal resistance between the surface of the heat source and the contact surface of the heat sink, and the SK30 thermally conductive silicone pad can fill the gap of the contact surface well;

3. Since air is a poor conductor of heat, it will seriously hinder the transfer of heat between the contact surfaces, and installing the thermal pad between the heat source and the radiator can squeeze the air out of the contact surface;

4. With the supplement of thermal conductive silicon pad, the contact surface between the heat source and the radiator can be better and fully contacted, so that the face-to-face contact can be achieved, and the temperature difference can be as small as possible;

5. The thermal conductive silicon pad is adjustable, and the thermal stability is better;

6. The process difference of thermal pad in structure is bridged to reduce the process difference requirements of radiator and heat dissipation structure;

7. The thermal conductive silica gel pad has the effect of shock absorption and sound absorption;

8. The thermal conductive silica pad has the convenience of installation, test and reuse.


Most wireless charger customers are satisfied with SK30 thermal pad. 3.0W/m.K thermal conductive silica gel pad can solve the problem of wireless charging and cooling, and also save the cost of materials for customers. More importantly, it can help customers greatly improve the product quality and performance. The cooperation with the customer has become another classic application case of Dasen Electronics.