With the continuous development of the economy and the continuous improvement of people's living standards, more and more people have bought cars, the number of cars on the road has gradually increased, and traffic jams have become a habit. I believe it is not difficult for everyone to find that many cars have something similar to a shark fin on the roof, which makes people look confused. But do you know what exactly shark fins are used for? Let’s share it with you today, let’s take a look!
1. Receive signals
Yes, one function of this shark fin is to receive signals. The shark fin was invented by an Australian aircraft maintenance engineer. He transplanted the spoiler from the aircraft to the car and obtained a patent. After that, BMW purchased it and combined it with the weather to receive the signal. It was beautiful and generous. After all, the previous car receiving antenna was too ugly.
2. Anti-rear collision
Some shark fins are equipped with LED lights. Using the principle of solar energy, they will flash alternately at night, allowing you to travel safely at night. If you encounter rainy and foggy weather at night and very low visibility, such lights can remind the cars behind you to pay attention and prevent rear-end collisions.
3. Reduce fuel consumption
For car owners, high-speed driving is unavoidable. When a car is traveling at high speed, a large vortex will be formed at the rear of the car, which will increase the power of the car. This shark fin will cut the airflow before forming a large eddy, thereby reducing the resistance of the car. According to expert testing, this shark fin can reduce high-speed fuel consumption by 3%.
4. Release static electricity
Everyone will be irritated if they are accidentally electrostatically charged. However, cars cannot release static electricity by themselves, except for installing a static elimination belt in the exhaust pipe. In fact, shark fins can also neutralize static electricity and use the cutting-edge characteristics of electronics to reduce static electricity on the car surface, thereby protecting the safety of the car and the body circuit. Therefore, shark fins can also be called sky-facing electrostatic dischargers. Of course, the installation is also very convenient. Just wipe the upper part of the car roof clean, apply double-sided tape, and press it for about ten seconds.
I didn’t expect that a small shark fin could be so useful