After owning a car, the use of smart devices such as driving recorders, navigation, mobile phones and tablets, the power supply becomes a problem. Most of the cars are designed with only one cigarette lighter, and some cars come with a USB port. But it generally only 500mA output, can not meet the need of fast charging. The car charger is more needed.
There is no special distinction between good and bad. The car charger case is generally divided into metal and non-metal. The metal is generally aluminum alloy. The appearance is good, but if the process is not good, it is easy to leak electricity. Non-metal is generally high temperature resistant and environmentally friendly material. The appearance is relatively poor, but it is isolated. The enclosure has no influences on the using.
Regardless of the material, the car charger housing must meet the flame retardant requirements. If the internal components of the car charger are short-circuited or have other malfunctions , it is also possible to block these hazards inside the product.
The metal shell of the car charger is completely flame-retardant, and the non-metal shell car charger is relatively worrying. Generally, the non-metal shell has high temperature resistant flame retardant ABS engineering plastic and ordinary plastic. According to the test, the car charger is short circuit, the temperature can be as high as 95 degrees Celsius, and the plastic can be melted directly. ASB engineering plastics have good electrical insulation and are virtually immune to temperature, humidity and frequency, as well as excellent impact resistance.
The material of the metal-filled car charger looks good . However, due to the tolerance of the car cigarette lighter, it is inserted in the cigarette lighter of some models. It may be caused by the metal casing being electrically conductive, causing the cigarette lighter to short-circuit and burn the car. Insurance.