Buffering structure used between hood inner plate and engine room longitudinal beam of vehicle engine room

Abstract

A buffering structure used between a hood inner plate and an engine room longitudinal beam of a vehicle engine room comprises a buffering block, a vibration reduction piece connected between the engine room longitudinal beam and the buffering block, and a concave-inwards part arranged at the position of the inner side face of the hood inner plate. The concave-inwards part is provided with a downward opening so that when the engine room is closed, the buffering block can stretch into the concave-inwards part through the opening. The shapes and the sizes of the concave-inwards part and the buffering block are set in the manner that when the engine room is in a closed state, the buffering block at least abuts against the inner surface of the concave-inwards part in the vertical direction and the transverse direction of a vehicle. According to the matching manner of the concave-inwards part and the buffering block of the buffering structure used between the hood inner plate and the engine room longitudinal beam of the vehicle engine room, the buffering effect is provided for a hood in the vertical direction, meanwhile, an obvious buffering effect is also provided for the hood in the transverse direction of the vehicle, the Y-direction constraint modal frequency of the hood is greatly improved, and therefore the phenomenon that resonance happens to the hood and outside excitation is reduced, and the breakage risk of a hinge is reduced.

Description

[0001] This application is a divisional application of an invention patent application with an application date of September 25, 2013, an application number of 201310444338.1, and a title of "A buffer structure between the inner panel of the hood of the vehicle engine compartment and the longitudinal beam of the engine compartment". technical field [0002] The invention relates to buffering technology, in particular to a buffering structure used between the inner panel of the hood of the vehicle engine compartment and the longitudinal beam of the engine room. Background technique [0003] The external excitation received by the hood of the engine mainly comes from the road surface. According to the different driving speeds of the vehicle, the external excitation frequency will generally be concentrated in 0-50HZ. Since the vibration frequency of the hood is low in the closed state, it is very easy to resonate with external excitations, so that the hinge of the hood is broken...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a buffer structure between the inner panel of the hood of the vehicle engine compartment and the longitudinal beam of the engine room, so as to solve the problem that the hinge is easy to break

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