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Magnesium alloy front end frame assembly beneficial to pedestrian protection and vehicle

A front-end frame, pedestrian protection technology, applied in vehicle components, vehicle safety arrangements, pedestrian/occupant safety arrangements, etc., can solve the problems of weak collision performance, inability to correct and repair, easy to break, etc., to improve the collapse energy absorption performance, The effect of enhancing pedestrian protection performance and meeting lightweight requirements

Inactive Publication Date: 2022-03-01
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional automobile front-end frame assembly structure is a metal frame assembled by tailor-welding or bolts of multiple stamping parts. The buffering and energy-absorbing effect from the structure to the material is poor, and it cannot form effective protection for pedestrians. The market-developed Another type of plastic front-end frame structure, with high integration, but weak collision performance, easy to break after collision, cannot be corrected and repaired in the later stage, and needs to be replaced as a whole, and the maintenance cost is too high

Method used

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  • Magnesium alloy front end frame assembly beneficial to pedestrian protection and vehicle
  • Magnesium alloy front end frame assembly beneficial to pedestrian protection and vehicle
  • Magnesium alloy front end frame assembly beneficial to pedestrian protection and vehicle

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Embodiment Construction

[0036] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0037] see Figure 1 to Figure 8 , the magnesium alloy front-end frame assembly that is beneficial to pedestrian protection, includes a frame body 1, and the frame body 1 is an integrally formed magnesium alloy die-casting, which not only meets the performance requirements of the body on the front-end frame assembly, but also maximizes the Compared with the traditional steel front frame, the weight is reduced by more than 60%, and compared with the all-plastic front frame, the weight is reduced by more than 30%.

[0038] The lower front of the frame body 1 is provided with a leg protection beam 2, the left and right end sides of the leg protection beam 2 are connected to the front end of the energy-absorbing box 4, and the left and right sides of the frame body 1 are integrally formed with The first installation plate 15 , the rear end of the crash box 4 is connecte...

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Abstract

The magnesium alloy front end frame assembly facilitating pedestrian protection comprises a frame body and a leg protection cross beam, the frame body is an integrally-formed magnesium alloy die casting, and the left end side and the right end side of the leg protection cross beam are connected with the front end of an energy absorption box. First mounting plates are integrally formed on the left side and the right side of the frame body respectively, and the rear ends of the energy absorption boxes are connected with the front sides of the first mounting plates of the frame body. Pedestrian protection performance in the collision process can be effectively improved, and the requirement for light weight of a vehicle body is met.

Description

technical field [0001] The invention relates to the technical field of automobile bodies, in particular to a magnesium alloy front-end frame assembly and a vehicle which are beneficial to pedestrian protection. Background technique [0002] In recent years, with the development of the automobile industry, national regulations and user needs have made automobiles develop in a safer and more environmentally friendly direction. Pedestrian protection is a technical evaluation based on the protection of pedestrians, which requires related work in the early stage of automobile development. concept design. Pedestrians are in an obvious disadvantaged position in traffic accidents. According to statistics, pedestrians account for about a quarter of road fatalities. After the leg is hit, the head will fall and the head will be injured. Pedestrian protection is included in the evaluation criteria in the 2018 version of C-NCAP. [0003] The traditional automobile front-end frame assem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D21/02B62D21/15B62D29/00B60R19/34B60R21/34
CPCB62D21/02B62D21/15B62D29/008B60R19/34B60R21/34
Inventor 贾少伟张金生
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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