It is likely that you have never thought about it, and that after reading this your head has gone around the subject, and that is that, for logical reasons of space, The iPhone do not use fans To refrigerate, as if they make larger equipment such as computers.
However, it is not such a weird, because even the MacBook Air M1, the first ones that Apple launched with its own chip, do not have it either, something that adapted to this model also in future versions, and that is that the way to dissipate the heat they use is sufficient, and do not need them.
How an iPhone cools
If you have certain knowledge in technology and computer science, it is possible that this question is something absurd to you, because it is quite logical, however, many people who do not know about the subject, will question it, so we are going to see the ways in which an iPhone dissipates the heat, and how to improve this if we have temperature problems.
- Materials that dissipate heat: When making an iPhone, you think about materials, usually aluminum or glass, which help disperse the heat generated inside the device. He Aluminum is a good thermal conductorso it transfers heat to the outside and helps to cool faster, hence many models opt for this material, not just for the cost.
- Optimized internal design: The iPhone is designed so that the heat generated by the internal components (such as the processor) is distributed efficiently. The key elements are located so that the heat does not accumulate in one place, although we seem so small the space that this does not make sense.
- Energy and performance control: The iPhone operating system is scheduled to adjust the performance of the device when it detects that it is generating very heat. For example, if the processor is working too much, the phone can reduce your performance temporarily to prevent overheating. We will notice it in the maximum brightness, or that does not even let us light the flashlight.
- Natural convection: Although it has no fans, the iPhone benefits from the circulation of the air around it. Air helps dissipate heat out of the device, in a process called convection. That is why certain types of covers are not appropriatesince they would keep that heat preventing it from going abroad.
That is why, after all this, we can understand why the iPhone does not use fans, and although it is true that using them could have a much larger, limited performance due to heat, we cannot incorporate them into such a small space, which would generate, in turn, more battery expense as well.
So now that you know, try not to use covers in summer, or change the rear (if it breaks) for another of poor quality, since everything is designed so that the iPhone, as we buy it, function wonderfully, and any change, however small, could limit its performance.