Pedestrian protection leg type protection integrated structure

Abstract

The invention relates to a pedestrian protection leg type protection integrated structure. The protection integrated structure comprises a lower protection plate, an energy absorption block and an anti-collision beam, the lower protection plate is installed between a front end frame and a front bumper skin, the two ends of the lower protection plate are connected with the anti-collision beam through side supporting supports, the anti-collision beam is connected with a longitudinal beam, and the energy absorption block is fixed to the anti-collision beam. A shank supporting cross beam is integrated on the lower protection plate, and part of collision energy on the lower portion of the shank is transmitted to the side supporting supports through the shank supporting cross beam and then transmitted to a vehicle body through the front anti-collision beam; and part of collision energy is transmitted to the front end frame through the lower protection plate and then transmitted to the longitudinal beam. The lower protection plate is connected with a lower cross beam of the front end frame, and a gap between a front bumper and the bottom of the front end frame is sealed. Light weight is achieved, impact energy on the lower portions of shanks of pedestrians can be effectively absorbed, the number of parts is reduced, cost is reduced, the modality of the whole front end is improved, andimprovement of NVH is facilitated.

Description

technical field [0001] The invention relates to the technical field of automobile pedestrian protection, in particular to a pedestrian protection leg type protection integrated structure. Background technique [0002] Pedestrian protection has received more and more attention, and its technology has developed rapidly in recent years. Regulations and NCAP are constantly being updated, and the requirements are getting higher and higher. With extensive research investment, new structures and technologies are constantly emerging. In the traditional pedestrian protection technology, the lower support structure of the calf is generally transferred to the car body through the metal water tank lower beam, or the lower support structure of the lower leg is designed as a sheet metal part and welded to the front anti-collision beam. In the former solution, since the water tank frame is designed as a sheet metal part, the overall weight is relatively heavy; and, in order to effectivel...

AI Technical Summary

Problems solved by technology

In the former solution, since the water tank frame is designed as a sheet metal part, the overall weight is relatively heavy; and, in order to effectively support the calf support frame, the structure at the lower beam of the water tank also needs to be designed stronger or a separate bracket is designed to support it; the latter As the lower support structure of the calf is designed as a sheet metal part, the lightweight level is not high, and the structural design and layout also have more restrictions on the shape

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