What is the rear bumper rearview plate of a car
The rear bumper deflector (also known as the "rear bumper deflector") is a black plastic plate installed beneath the rear bumper of a vehicle. Its main function is to enhance driving performance and safety by optimizing aerodynamics. The following are its core functions and characteristics:
Core role
Youdaoplaceholder0 Reduce lift, increase stability
When driving at high speed, lift is prone to occur at the bottom of the vehicle, resulting in weakened grip of the rear wheels. The deflector plate, through a specially inclined design, guides the airflow to quickly pass under the vehicle, reduces lift, prevents the rear wheels from floating, and enhances driving stability.
Youdaoplaceholder0 Optimize wind resistance, save fuel
Deflector plates can reduce turbulence under the vehicle, lower air resistance, make the vehicle run more smoothly, and thereby reduce fuel consumption.
Youdaoplaceholder0 Auxiliary protection function
In the event of a minor collision, it can absorb part of the impact force, protecting the internal structure of the bumper and chassis components (such as the exhaust pipe).
Structural and installation features
Youdaoplaceholder0 Material and position : Usually made of lightweight plastic (ABS or polypropylene), fastened to the bottom of the rear bumper with clips or screws.
Youdaoplaceholder0 REPLACEABLE separately : If damaged, no need to replace the whole bumper, REplaceable separately repair.
The differences from other components
Youdaoplaceholder0 Unlike the spoiler : The spoiler is placed above the trunk lid and enhances rear wheel grip by creating downforce;
Youdaoplaceholder0 is different from a diffuser : A diffuser is located at the bottom of the rear of a vehicle and generates negative pressure by accelerating the airflow under the vehicle, commonly found in performance cars.
Youdaoplaceholder0 Note : Some sources mistakenly refer to the rear wing as a "spoiler", but strictly speaking, the rear bumper spoiler specifically refers to the aerodynamic component beneath the bumper.
Usage scenarios
Youdaoplaceholder0 Driving at high speed : The effect is most significant, it can significantly improve handling stability;
Youdaoplaceholder0 Bad Weather : Reduce crosswind disturbance and enhance driving safety.
The deflector plate (also known as the rear spoiler or rear diffuser) beneath the rear bumper of a car mainly improves vehicle performance and safety by optimizing airflow. Its specific functions are as follows:
Aerodynamic optimization
Youdaoplaceholder0 Reducing lift and enhancing stability : At high speeds, the turbulence under the vehicle can generate lift. Deflector plates sort out the airflow direction, reduce rear turbulence, weaken lift and increase tire grip, prevent rear wheels from floating, and enhance handling stability.
Youdaoplaceholder0 Reduce wind resistance and fuel consumption : Guide the airflow smoothly through the underside of the vehicle to reduce air resistance and improve fuel economy.
Safety protection
Youdaoplaceholder0 Collision cushioning : To disperse the impact force in a rear-end or scraping accident, protect the main structure of the vehicle and reduce the risk of injury to occupants.
Youdaoplaceholder0 Pedestrian protection : Absorbs some of the impact energy to reduce harm to pedestrians.
Functional added value
Youdaoplaceholder0 Improve view in rainy days : Guide the airflow to wash the rear license plate area, reduce mud and water accumulation, and maintain the visibility of the license plate.
Youdaoplaceholder0 Beautify the appearance : Design lines enhance the vehicle's sportiness and overall harmony.
Notes
If the deflector is damaged, the stability of high-speed driving will decline. It is recommended to replace it in time to maintain its original function.
Note: The air deflector (the plastic plate under the rear bumper) and the rear wing (the spoiler on the trunk lid) have similar functions but are installed in different positions. The diffuser further reduces the air pressure by accelerating the airflow under the vehicle. The three work together to enhance the aerodynamic efficiency.
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