In the car with the car cigarette lighter charger to charge the mobile phone often encounter the situation of hot mobile phone, in fact, hot mobile phone is related to the current intensity of mobile phone charging and the environment, the higher the current the faster the mobile phone charging, often this will easily lead to the mobile phone hot serious, in fact, in addition to the current in the mobile phone charger volume is also a problem, Now, in order to go out and carry easily, people often like to use smaller car chargers in the car, in fact, the volume of the car charger has become smaller, and the heat dissipation will become worse.
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The components that heat up the car charger shell are: high-voltage capacitor, switching tube, high-frequency transformer, and the temperature of these three components is quite high. It is not difficult to reduce the temperature of these three components, in general, in the case of constant output current, the power of the high-frequency transformer is relatively large, and the temperature of the high-power high-frequency transformer is much smaller. Simply put, it is to give it extra power, just like a big car pulling small things as effortlessly. Of course, the switch tube heat dissipation is easier, as long as it is equipped with enough heat sinks. However, due to volume limitations, it is not possible to reduce the heat generated. Therefore, the heat of the car charger shell is inevitable.
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Of course, the above only refers to the genuine charger heat, if it is a cottage charger, then it is a different matter, the cottage charger itself output voltage stability is not as good as the original charger, which will cause slow charging, car shell heat serious problems.
It may be caused by overload of the charger or prolonged use. It is recommended to stop using the charger and wait for it to cool down before using it. If the problem persists, contact the manufacturer or professional maintenance personnel for maintenance. Do not disassemble or repair the charger privately, so as not to cause safety accidents.
Car charger conversion efficiency of more than 90% will heat, if hot indicates that the quality of the charger is not up to standard, should be used with caution.