What is the difference between a collision proof beam and a bumper?

Bumpers are generally made of plastic or resin with high elasticity to slow the impact of minor collisions on the car. The collision proof beam is generally hidden in the bumper and inside the door. Under the action of a large impact force, when the elastic material can no longer buffer the energy, it really plays a role in protecting the occupants in the car.


Bumpers and collision proof beams are not the same thing. As the first barrier of passive safety of automobile, bumper is an important safety device that absorbs and mitigates external impact force and protects the front and rear of the vehicle body. Generally, automobiles basically have bumpers, which are distributed in the front and rear, and are mostly made of plastic, resin and other highly elastic materials, especially those produced by the main factory contain silk, etc., while those produced by the auxiliary factory do not have these things. , the flexibility is greatly reduced. Bumpers are mainly used to reduce the impact of minor collisions on the car, and even if they are damaged, they are relatively easy to replace.

The collision proof beam is generally hidden in the bumper and inside the door. Under the action of a large impact force, when the elastic material can no longer buffer the energy, it really plays a role in protecting the occupants in the car. The collision proof beam is not available in every car, it is mostly made of metal materials, such as aluminum alloys, steel pipes and the like. Now more and more manufacturers put the side door collision proof beam into the side door of the car. The side door collision proof beam is also called the door collision proof beam, which refers to adding a beam to the internal structure of the door to strengthen the structure of the side of the vehicle. Based on the probability of a side impact, door crash protection acts as an additional energy-absorbing protection that reduces the external forces that the occupants may be exposed to. Facts have proved that door collision proof beams are very effective in protecting the vehicle when it hits a fixed object (such as a tree). Especially in a low-speed collision accident, the car without the anti-collision steel beam will be directly damaged, destroying the parts inside the car.

The collision proof beam is used to strengthen the structure of the vehicle, thereby improving the anti-collision resistance during side impact, so as to improve the safety of the side. Protect the occupants of the vehicle and protect the main components such as the engine. The front and rear collision proof beams of the car are generally arranged behind the bumper, and the side collision proof beams are generally arranged inside the door structure.