Yes. It works. But please pay attention to waterproof.
The cellphone radiator is an external fan device that blows directly at the back of the mobile phone, increases the air circulation on the back of the mobile phone, and introduces relatively low-temperature air, so that all the heating elements inside the mobile phone are dissipated.
If you want to know if it’s useful
We have to start from the source
Through the disassembly diagram, we know.
The internal heat dissipation module is composed of cooling chip and conductive cold copper sheet.
The principle of the chip of thermal conductivity: When a current flows through a thermocouple pair formed by a piece of N-type semiconductor material and a piece of P-type semiconductor material, heat transfer will occur between the two ends, and the heat will be transferred from one end to the other end, thereby generating a temperature difference to form cold and heat end. However, the resistance of the semiconductor itself will generate heat when current passes through the semiconductor, which will affect the heat transfer. Moreover, the heat between the two plates will be reversely transferred through the air and the semiconductor material itself. When the hot and cold ends reach a certain temperature difference and the two kinds of heat transfer are equal, an equilibrium point will be reached, and the forward and reverse heat transfer will cancel each other out. At this time, the temperature of the hot and cold ends will not continue to change. In order to achieve a lower temperature, it can be achieved by reducing the temperature of the hot end by means of heat dissipation.
So generally, the back clip cellphone game coolers are all equiped with a fan.
It is very different from our traditional heat pipe in terms of working principle.
Traditional heat pipe cooling is like this.
It is conduction through the process of heat absorption, evaporation, condensation, and heat absorption. The whole process is a cyclic process and takes a long time.
And the faster the carrier that generates heat, the longer and larger the heat dissipation copper pipe it needs.
In contrast:
1. Thermally conductive wafers are smaller
2. The cost of thermally conductive wafers is lower
3. The thermal conduction chip conducts heat faster and can even freeze
Okay, now we know the above principle
You can start to see if this is useful for mobile phones
In early mobile phones, we can see a thin sheet of graphene heat dissipation layer.
Graphite heat dissipation layer In thermodynamics, the heat dissipation of graphene heat dissipation film includes conduction, convection, and radiation, as shown in Figure 1. For example, the direct contact between the CPU heat sink base and the CPU to take away heat is thermal conduction; common cooling fans drive gas flow, that is, heat convection; thermal radiation refers to the transfer of heat by radiation. In general (below 400 degrees Celsius), heat conduction and heat convection are the main reliances in the heat dissipation system. The heat conduction is mainly related to the thermal conductivity and heat capacity of the radiator material, and the heat convection is mainly related to the heat dissipation area of the radiator.
Later, I saw the heat dissipation layer of the copper pipe.
After that, the newer type is this VC soaking plate
From the above we can see that some mobile phones have multiple cooling systems.
VC soaking plate is the latest third-generation heat dissipation technology. It can be regarded as an upgrade technology of copper tube liquid cooling. Although both are the principle of gas-liquid phase change, the difference is that the heat pipe has only a single direction of effective heat conduction capacity. The VC soaking plate is upgraded to the entire surface, which can quickly remove the heat from all directions. So with so many cooling systems, does the heat disappear directly in the end?
According to the law of conservation of energy, energy will neither be generated out of thin air, nor will it disappear out of thin air, but can only be transferred from one object to another, and the forms of energy can also be interchanged.
So, the heat only goes from one place to another, and students should already know it.
Yes. It’s these bells and whistles, the colorful and black back cover.
Why does the mobile phone become hot when it is used for a long time, because your hands eat up the heat, and the external heat dissipation system of the mobile phone is equivalent to adding an active heat dissipation module.
Using wind energy to drive thermal energy to the atmosphere, and, as we said above, since the thermally conductive chip of the external radiator is cooled by electric energy, when the radiator is turned on when the mobile phone is not hot, the air moisture will be condensed.
