What is the front sun visor of the car?
Summer is here, the poisonous sun not only tests us, but also tests our car. The surface temperature at 50° is really a torment. Every time you open the door, it is a real sauna. There are many in this bad weather. The owner of the car uses the front sun visor to block the sun. What is the use of this front sun visor? Is the front sun visor really insulated ? Let's take a look.
　　
First let's take a look at the principle of the sun visor .
The sun visor is in the front windshield and rear windshield of the car. In order to avoid the glare design of the sun (participation, inquiry), it can be moved back and forth to adjust the illumination of the sun to the eyes and avoid traffic accidents.
The sun visor is designed to prevent sunlight from shining directly into the interior of the car, jewelry, and to achieve cooling by reflection. So if we test the same model, useful and useless sun visor, does the temperature inside the car really change?
Prepare two cars of the same model and park them in a place that can be exposed to the sun. One car is equipped with a sun visor, one is not installed. After a sun exposure in the hot sun, we find that the temperature inside the sun visor is lower than the temperature inside the car and inside the sunless car, but over time, The temperature of the two cars will gradually increase, and the temperature outside the car has exceeded 30 minutes.
　　
When the outside temperature reached 39.2 degrees, the air temperature in the sun visor vehicle was 48.9 degrees, and the air temperature inside the vehicle without the sun visor was 51.6 degrees, which was less than 3 degrees. Sitting in the car in a 50 degree environment, it is estimated that we have already been hot enough to not have the temperature difference of 3 degrees. That is to say, the visor basically cannot block the rise of the air temperature inside the vehicle.
In fact, after many tests on the Internet, it is proved that the sun visor can not reduce the temperature inside the car well under the exposure state, but the sun visor can greatly reduce the temperature of the central control and steering wheel, so that the steering wheel will not be driven. It’s hot. In addition, the instrument panel of the universal car is made of plastic material. It will produce unpleasant smell and toxic substances when exposed to high temperature for a long time. After the data shows that the steering wheel is at the central control, the function of the sun visor avoids direct sunlight to the instrument panel. The interior is aging.
Five cool summer tricks
Helping the car to maintain a suitable interior temperature during the summer, on the one hand, let us enter the car is not so crazy, on the other hand, it also plays an active role in delaying the aging of the interior materials and reducing the volatilization of harmful substances. In addition to the practical sun visor, the editorial department also summed up the summer's five cool tricks for the riders.
1. When parking the vehicle in the open-air parking lot, turning the front of the car against the sun can effectively reduce the temperature inside the car.
2. Before getting on the train in the summer, open the door and window first, and wait for two or three minutes for the hot air to drain before starting the vehicle.
3. When the temperature inside the car is greater than the temperature outside the car , use the outer circulation; when the temperature inside the car is lower than the temperature outside the car, use the inner circulation.
4. When the air is opened, the air outlet will be upward and the cold air will sink automatically.
5. Turn off the air conditioner before reaching the destination to reduce the fuel consumption and avoid the odor of the air conditioner.
Through the above article, I believe that everyone has a deeper understanding of the front sun visor of the car, and also learned a few tricks to cool down the five tricks, which will certainly have a lot of help in our future life, I hope everyone can be flexible Use it to better protect your car.
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