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A kind of electrostatic discharge device of the heavenly type
Shark fin antenna, it is actually a kind of anti-heaven type electrostatic discharge.
How to understand this? In the winter, our clothes are easy to static electricity, in fact, the car is the same reason, a winter climate is relatively dry, the body itself is easy to carry static electricity.
If the static electricity on the body cannot be ruled out, it is not just a matter of worry, especially when refueling, once a small spark is encountered, it is easy to cause safety accidents, and the top of the shark fin has the effect of releasing static electricity to a certain extent, further improving driving safety.
I believe you have also seen that at the tail of the tanker truck, there is a chain dragging on the ground, in fact, its role is to release static electricity, and the shark fin antenna has this effect.
Installing a shark fin antenna on the top or tail of a car allows static electricity on the car to be released into the air through it.
So, shark fins are not just antenna features! Do you know what humble designs in cars are useful?