What is the rear beam assembly of a car
automobile rear beam assembly is an important part of automobile body structure, mainly located at the back end of the vehicle, with a variety of functions and design features.
Definition and function
The rear beam assembly is located at the rear end of the vehicle and is an important part of the body structure. It plays a decisive role in low-speed collisions and can reduce maintenance costs; In high-speed collision, it plays an important role in energy absorption and force transmission, protecting the safety of the members of the car, and reducing the damage of important components .
In addition, the rear beam assembly also needs to meet after-sales service convenience requirements and various safety test standards .
Design and materials
The rear beam assembly usually consists of a rear beam body and a patch plate. The rear beam body is successively distributed with a first rear beam, a middle passage connecting beam and a second rear beam. The middle passage is connected with a first transition plate with a tilt between one end of the beam and the first back beam, and a second transition plate with a tilt between the other end and the second back beam. The patch plate comprises a patch part connected to a first rear beam, a second patch part connected to a middle channel connecting to a beam, and a third patch part connected to a second rear beam.
This design makes the rear beam assembly structurally more robust and durable.
Type and application scenario
There are many types of automobile rear beam assembly, including front seat rear beam assembly, front floor assembly and automobile. Take a Zhejiang Geely patent as an example, the patent discloses a front seat rear beam assembly, including a rear beam body and a patch plate, with an integrated structural design that can significantly improve the structural performance of an automobile .
In addition, rear collision beams are especially important for electric vehicles, as they not only protect the members of the vehicle in a high-speed crash, but also protect the electrical safety of the rear end .
The main functions of the rear beam assembly of the automobile include improving the overall stiffness of the rear segment of the automobile, distributing and absorbing the impact force, protecting the safety of the occupants and reducing the maintenance cost .
Increase the overall rear stiffness of the vehicle : The rear beam assembly significantly increases the overall rear stiffness of the vehicle by forming an integral part with the rear beam in the top cover. This helps to improve the noise of the vehicle and avoid large deformation of the body in the case of side impact .
impact dispersion and absorption : The rear beam assembly is usually made of high-strength steel and is mostly rectangular or trapezoidal in shape. When the vehicle is hit, the rear beam can disperse and absorb the impact force, protecting the occupants from serious injury. This design helps prevent the transfer of crash energy directly into the vehicle, thereby reducing the risk of occupant injury .
To protect the safety of occupants : in a high-speed collision, the rear beam assembly plays a role in absorbing energy, protecting the safety of the members of the car and reducing the damage of important components. For electric vehicles, the rear anti-collision beam is particularly important because it also protects the rear end appliances .
Reduced maintenance costs : The design of the rear beam assembly helps reduce maintenance costs in low-speed collisions. By spreading and absorbing the impact force, the rear beam reduces damage to the bumper and body skeleton, thereby reducing maintenance costs .
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