1. The sign for automatic headlight cleaning is a small square under the headlight. Many cars such as Mercedes-Benz, BMW, Porsche, etc. have this function. The working principle is the same as before you wash the windshield, spray water to clean it.
2. The headlight cleaning device is installed on the car bumper, or a retractable extension nozzle holder can be used to hide it in the bumper.
There are also those installed under the headlights and near and below the headlights.
3. The headlight cleaning device refers to a water outlet under the headlight, which can clean dust and dirt from the headlight at any time. Generally, more advanced models have this function.
Extended information:
1. Function
When a car is driving at night or in dark light, rain and dust will reduce the illumination of the headlights. If it is reduced by 90, the driver's vision will be seriously affected, which poses a great hidden danger to driving safety. Ensuring sufficient illumination of the headlights and giving the driver a clear line of sight has become an important issue that needs to be solved in this case.
The headlight cleaning device provides a simple and effective way to solve this problem. Laws in many countries now stipulate that headlight cleaning systems must be installed on cars.
2. The headlight cleaning device has two structural modes:
1. Wiping/washing system
This system can only be used for glass light mirrors , because although plastic light-distributing lenses have a friction-resistant coating, they are still sensitive to mechanical cleaning. This type of cleaning system can also be seen on older generation models.
2. High-pressure cleaning system
High-pressure cleaning systems have become increasingly recognized and can be used on glass and plastic lenses. The cleaning effect mainly depends on the distance between the nozzle and the light distribution mirror, the size of the water droplets sprayed, the contact angle, the water spray speed and the water spray volume.
Reference source: Baidu Encyclopedia ?Headlight cleaning device