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Energy-absorbing block and bumper device provided with same

An energy-absorbing block and bumper technology, applied in bumpers, transportation and packaging, pedestrian/occupant safety layout, etc., to achieve the effect of reducing weight, improving layout space, and improving energy-absorbing efficiency

Active Publication Date: 2013-05-08
SAIC GENERAL MOTORS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the deficiency of the energy-absorbing block of the existing bumper, the present invention provides a device that can effectively reduce the injury of pedestrians and the front of the car when they collide; and can effectively increase the layout space of the front compartment

Method used

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  • Energy-absorbing block and bumper device provided with same
  • Energy-absorbing block and bumper device provided with same
  • Energy-absorbing block and bumper device provided with same

Examples

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Embodiment Construction

[0027] See Figure 3-5 , a structural schematic diagram of an embodiment of the energy-absorbing block of the present invention, the energy-absorbing block includes an upper energy-absorbing portion 10, a lower energy-absorbing portion 20, and a façade energy-absorbing portion 30 connecting the upper and lower sides. Wherein, "up" and "down" in this article are reference directions relative to a coordinate system that is a horizontal plane relative to the ground. The upper energy-absorbing part, the lower energy-absorbing part and the facade energy-absorbing part form a rectangular or trapezoidal groove, such as image 3 As shown, the energy-absorbing block of the present invention is composed of an upper energy-absorbing part 10, a lower energy-absorbing part 20, and a facade energy-absorbing part 30 connecting the upper and lower sides to form an incompletely enclosed space. The cross-section of the energy portion is similar to a C-shape.

[0028] The energy-absorbing bloc...

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Abstract

The invention discloses an energy-absorbing block and a bumper device provided with the same. The bumper device comprises the energy-absorbing block, a front bumper bar and vehicle front skin. The energy-absorbing block is arranged between the front bumper bar and the vehicle front skin and comprises an upper energy-absorbing portion, a lower energy-absorbing portion and a vertical face energy-absorbing portion. The upper energy-absorbing portion, the lower energy-absorbing portion and the vertical face energy-absorbing portion are made of metal plates, the vertical face energy-absorbing portion is connected between the upper energy-absorbing portion and the lower energy-absorbing portion, the upper energy-absorbing portion, the lower energy-absorbing portion and the vertical face energy-absorbing portion form a rectangular groove or a dovetail groove, hollow bores are reserved on at least one of three energy-absorbing portions, and the upper energy-absorbing portion and the lower energy-absorbing portion of the energy-absorbing block are respectively welded to the front bumper bar and are spaced from the vehicle front skin. By the adoption of the hollow bores on the energy-absorbing portion, weight of the energy-absorbing block is alleviated and overall strength of the energy-absorbing block is lowered, sufficient energy absorption is facilitated, impact of legs of a pedestrian is reduced, and leg fracture of the pedestrian is avoided.

Description

technical field [0001] The invention relates to a bumper energy-absorbing block, in particular to an energy-absorbing block and a bumper device with the energy-absorbing block. Background technique [0002] In automobile traffic accidents, pedestrian's legs are very vulnerable key parts, especially easy to collide with automobile hood and front bumper. [0003] For this reason, in some current vehicle design schemes, bumper energy-absorbing blocks are set between the anti-collision bar and the skin on the car. When a collision occurs, the deformation of the energy-absorbing block itself can absorb part of the energy of the impacting parts. [0004] The existing bumper energy-absorbing block is basically a foam energy-absorbing block, and the foam-type energy-absorbing block is formed by hot pressing of foamed PP (polypropylene) particles, but the energy-absorbing efficiency of this energy-absorbing block is low, and the material The cost is high, and because of the use of ...

Claims

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Application Information

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IPC IPC(8): B60R19/18B60R21/34
Inventor 孙金霞刘宏翔沈海东
Owner SAIC GENERAL MOTORS
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