Why Don’t Cars Have Windshield Defrosters?

of vehicles back in their windows The available de-icing wires are an indispensable aid for many drivers during the winter months. However, as we mentioned, these wires are not located on the windshield.

The reason behind this situation is actually quite logical It is based on some technical details you will find. Come on, let’s examine it together.

First, let’s take a look at the mechanics of the windshield and rear glass.

In rear windows, it is usually embedded in the glass. heater wires An electric defrost system is used. When this system is activated, the wires heat up and the fog or ice on the glass is quickly cleared. This method allows the rear window to be removed from the vehicle. weather flow This is very useful considering the lack of direct access to their systems.

On the windshields, hot air coming from the vehicle’s heater, engine as it gets warmer It is caused by blowing from the ventilation holes in the windshield. This air is directed to the glass and the ice is dissolved.

So why are different systems used in two glasses?

The method on the windshield ensures that the engine is sufficiently warming up Considering the time required for slow It might be coming. However, integrating heating elements into windshields, as in rear windows, would be more expensive and complex because the windshield is larger and requires clear visibility without visual interruptions such as wires.

Pre-heated windows are also available on the market.

Heated windshields are also available on some vehicles but are generally more high on featured models or optional They are available as. These glasses can quickly defog the glass using the network of fine wires inside them.

This feature was once an exclusive technology found in vehicles produced by Ford, but with the expiration of the patent, it has spread to a wider audience.

In summary, a simple and costly electric grid system can be used for rear windows, while front windows generally use an air-based system, which is slower due to cost and design requirements. Heated windshields offer a faster alternative, but their use is less due to their higher cost.

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