Cell Phone Cooling
Causes of mobile phone heating:
The root cause of mobile phone heating is that during the operation of the mobile phone, the current output by the battery generates heat when passing through the electrical components. Under normal circumstances, the mobile phone will certainly generate heat during the operation. The main heating places of the smart phone include CPU, chip, processor, mobile phone battery, etc
Generally, the heat generated by mobile phones is naturally emitted through the thermal materials on the back of mobile phones, which requires good hthermal materials and a suitable cooling environment. Now, the exterior of mobile phones is generally a metal back shell, and the heat is scattered to the surrounding environment through the metal back shell. This method of cooling is used on many mobile phones, but when too much heat is generated, the mobile phones are not suitable for use, Therefore, new heat dissipation materials and methods are required.
Graphite cooling sheet:
This is a mainstream thermal cooling method at present. The graphite cooling sheet is used to distribute the central temperature of the mobile phone heating evenly on a two-dimensional plane, so as to facilitate uniform heat dissipation. In addition, the thermal conductive grease directly transfers the heat on the surface of the processor to the heat dissipation material, so as to ensure that the components in the mobile phone can work normally and stably
An experiment on the cooling principle of graphite fins shows that during the continuous use of mobile phones, when no heat dissipation measures are taken, the high temperature is locally concentrated, and the surrounding is close to the high temperature. After the use of graphite fins, the local high temperature diffuses, and the high temperature of the heat source is controlled.
Metal backplate cooling:
In this way, a layer of metal heat conduction plate is placed inside the mobile phone to transfer the heat generated by the mobile phone to the metal heat conduction plate, and then to the four parts of the body, so as to ensure that the mobile phone can operate at normal temperature, so that the heat can spread rapidly.
Heatpipe Cooling:
The advantages of heatpipe cooling method are that the heat pipe self cooling system does not need a fan, has no noise, is maintenance free, is safe and reliable, and the heat pipe air cooling or even self cooling can replace the liquid cooling system, saving water resources and related auxiliary equipment investment. In addition, the heat pipe heat dissipation can centralize and even seal the heating parts, while moving the heat dissipation part to the outside or far away can prevent dust, moisture and explosion, and improve the safety, reliability and application range of electrical equipment.
While smart phones allow users to experience high performance, most users have experienced the scalding of the back shell of the mobile phone. Especially when playing games or working for a long time, the phenomenon of mobile phone heating brings great security risks to users, so it is necessary to solve the heating problem of the mobile phone.
