What is the upper part of the rear bumper of a car
The upper body of a car rear bumper is often referred to as rear bumper upper trim or rear bumper guard . This plate not only covers and adorns the bumper, but also protects the rear of the vehicle to some extent . In addition, the upper part of the rear bumper can also be called the rear bumper trim or mask, which is mainly designed to beautify the rear of the vehicle and protect the bumper area from external damage .
Structure and Function
The upper body of the rear bumper is usually composed of outer plates, buffer materials and crossbeams, etc. The outer plate and buffer material are made of plastic, and the crossbeam is formed into a U-shaped groove by stamping cold-rolled thin plates. The outer plate and buffer material are attached to the crossbeam to form the integral bumper structure .
This DESIGN is not only aesthetically pleasing, but also effectively absorbs and mitigates external impact force to protect the body and occupants .
Design and Materials
The upper part of the rear bumper of modern cars is mostly made of plastic, and the commonly used materials include polyester and polypropylene. These materials are made by injection molding and have good toughness and impact resistance .
In design, the upper rear bumper is often in harmony with the rest of the rear part to create an overall aesthetic effect .
The upper body of the rear bumper of a CAR MAINLY HAS the FOLLOWING functions :
Youdaoplaceholder0 Beautify the appearance : The upper part of the rear bumper can beautify the appearance of the rear of the vehicle and enhance the overall aesthetic appeal .
Youdaoplaceholder0 Protect the vehicle : It can protect the bumper area at the rear of the vehicle from external damage to a certain extent and play a certain protective role .
Youdaoplaceholder0 Absorb impact force : In the event of a collision, the upper body of the rear bumper can absorb and mitigate the external impact force, thereby protecting the vehicle and its occupants .
Youdaoplaceholder0 Structure and material of the upper body of the rear bumper : usually composed of outer plate, cushioning material and crossbeam. The outer panel is usually made of plastic, which has good elasticity and energy absorption characteristics. The buffer material can further absorb the collision energy. The beam provides the main structural support .
Youdaoplaceholder0 Installation and maintenance : The installation of the upper part of the rear bumper is usually simple and can be fastened to the bumper with screws. In terms of maintenance, if damage occurs, it is usually necessary to replace or repair the outer plate and buffer material, and replace the entire assembly if necessary .
The rear bumper of a car works mainly by absorbing and reducing external impact force to protect the car body and pedestrians . The rear bumper, through its structural and material design, can effectively absorb energy during a collision, reducing the damage to vehicles and pedestrians.
Working principle
Youdaoplaceholder0 Absorb impact force : The rear bumper is designed to absorb a large amount of impact energy in the event of a collision, thereby reducing damage to other parts of the vehicle. Absorbent bumper can be divided into self-absorbent bumper, hydraulic absorbent bumper and air cavity absorbent bumper and other types, the effect also varies according to different absorbent principles .
Youdaoplaceholder0 Protect the body : The rear bumper can protect the rear part of the body, especially in low-speed collisions, effectively preventing damage to rear body components such as fenders and radiators .
Youdaoplaceholder0 Protecting pedestrians : In the event of an accident with pedestrians, the rear bumper can reduce the harm to pedestrians and provide additional cushioning .
Design and Materials
The design of the rear bumper needs to take into account factors such as appearance, installation structure and manufacturing process comprehensively. Lightweight plastic materials are often used, such as PP+EPDM(PE), which have good elasticity and durability and can automatically rebound upon impact, reducing maintenance costs .
In addition, the rear bumper also houses important functional components such as rear radar .
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