Apple 12 rechargeable mobile phone has a fever.

Users who use the iPhone will find a problem. When charging a mobile phone, it is often encountered that the mobile phone burns. In fact, the burning of mobile phones is related to the current intensity and environment of mobile phone charging. The higher the current, the faster the mobile phone charges, which often leads to the serious burning of the mobile phone. In fact, in addition to the current, the size of the mobile phone charger is also a problem. Nowadays, for the convenience of carrying, people often like to carry it with a smaller charger. In fact, the charger becomes smaller and the heat dissipation will become worse. The following small series will introduce in detail why the iPhone is hot, and what are the solutions?

The components that generate a lot of heat in the charger are: high-voltage capacitor, switch tube and high-frequency transformer, and the temperatures of these three components are quite high. It is not difficult to reduce the temperature of these three parts. Generally speaking, under the condition of constant output current, the power of high-frequency transformer is relatively large, and the temperature of high-power high-frequency transformer is much lower. Simply put, it is to give it extra power, which is as effortless as pulling small things with a big car. Of course, the switch tube is easier to dissipate heat, as long as it is equipped with enough heat sinks. However, due to the volume limitation, the calorific value cannot be reduced. Therefore, it is inevitable that the charger will heat up.

Of course, the above only refers to the fever of the genuine charger. If it is a cottage charger, it is another matter. The stability of the output voltage of the cottage charger itself is not as good as that of the original charger, which will cause problems such as slow charging and serious heating of the charger.

Why can't I use the cottage charger?

As we mentioned earlier, there are many electronic components in the charger. Its principle is to convert 220 volts alternating current into 5 volts direct current through the rectifier bridge, and then charge the mobile phone through the data cable. In this process, if the input 220-volt alternating current breaks through the rectifier bridge and the switch tube, and the short-circuit protection and insulation of the charger itself just fail, then the charger may directly output 220-volt alternating current to the data line and the mobile phone, leading to an accident.

From the appearance, there is no difference between the original charger and the cottage charger, but after it is disassembled, the difference is obvious, and the original charger is much safer. From the design point of view, the original charger has circuit protection and is filled with glue, which can improve the heat dissipation and insulation of the charger. These are all important ways to improve the safety of chargers, but there are basically no shanzhai chargers.

At the same time, in addition to the charger itself, the original and cottage equipped data lines are also very different. The original data cable uses about 20 copper cores, so even if the current of 1-2 amps passes through, it will not be too hot, which is safer, while the cottage data cable basically has only 7 copper cores, and its current passing capacity is only one third of that of the original data cable.

In addition, some data lines are fragile. After a long time, the connector connecting the mobile phone may be exposed. If the exposed part just needs to pass through the 220-volt fire line, then the user will get an electric shock when making a phone call.

So when you find that your charger is seriously hot, Bian Xiao suggests that you confirm whether you are using the original charger. If it is an original charger, don't worry too much. If it's a fake charger, Bian Xiao suggests you unplug it slowly, then open the window, aim out of it, save your strength and go ~ ~ Congratulations, your security alarm has been lifted.

How to avoid charger heating as much as possible

Excluding the problem of the cottage charger, the rest is relatively simple. We know that even the original charger will still have serious fever, so how to avoid this situation as much as possible? It's actually very simple. In fact, the heating of the charger is related to the output current intensity and the ambient temperature. We can start from these two points and try to solve the problem.

First of all, we can charge in a cool environment.

If the mobile phone charger is overheated, it is best to charge it in a cool environment in summer, such as an air-conditioned room. This way, the mobile phone charger will not be too hot.

Secondly, don't play with your mobile phone while it is charging.

If you are still playing with your mobile phone while charging, it will inevitably lead to overheating of the mobile phone charger, because the charger will work longer than normal, which is not good for the charger and will also reduce its life.

And don't charge more.

Generally, the original mobile phone charger can be fully charged in about 3 hours. Do not continue to charge after being fully charged, otherwise the charger will be overloaded and overheated. Remember to unplug the charger in time.

Also be careful of the surrounding heat sources.

When charging the mobile phone, the charger should be placed far away from the heat source, such as gas cooker, steamer, etc. , in order to avoid the charger overheating due to high ambient temperature.

Finally, reduce the fees.

If the charger is charged many times a day, it will lead to overheating, so we should control the number of times of charging, usually once a day or once every two days, which will help to prolong the life of the charger.