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Buffer structure between inner hood plate and engine room longitudinal girder for vehicle engine room

A buffer structure and engine compartment technology, applied in the buffer field, can solve problems such as easy breakage of hinges

Active Publication Date: 2014-01-29
ZHEJIANG GEELY HLDG GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 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

Method used

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  • Buffer structure between inner hood plate and engine room longitudinal girder for vehicle engine room
  • Buffer structure between inner hood plate and engine room longitudinal girder for vehicle engine room
  • Buffer structure between inner hood plate and engine room longitudinal girder for vehicle engine room

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Embodiment Construction

[0038] In the vehicle coordinate system used in this application, the X direction refers to the longitudinal direction of the vehicle, the Y direction refers to the lateral direction of the vehicle, and the Z direction refers to the vertical direction.

[0039] The present invention provides a buffer structure between a hood inner panel 100 and a nacelle longitudinal beam 101 for a vehicle engine compartment. The buffer structure includes a buffer block 200 , a vibration damping member 300 and a concave portion 400 .

[0040] like figure 1 and figure 2 As shown, the vibration damping member 300 is respectively connected with the cabin longitudinal beam 101 and the buffer block 200 , so that the vibration damping member 300 is integrally located between the cabin longitudinal beam 101 and the buffer block 200 .

[0041] The buffer block 200 has a separable outer sleeve 201 and an inner insert 202 . The inner insert 202 of the buffer block 200 is fixedly connected to the damp...

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Abstract

A buffer structure between an inner hood plate and an engine room longitudinal girder for a vehicle engine room comprises a buffer block, a vibration reduction piece connected between the engine room longitudinal girder and the buffer block and an inward-recessed portion arranged on the inner side face of the inner hood plate. The inward-recessed portion is provided with an opening facing downwards, so that when the engine room is closed, the buffer block extends into the inward-recessed portion through the opening. The shapes and the sizes of the inward-recessed portion and the buffer block satisfy the requirement that when the engine room is in the closed state, the buffer block abuts against the inner surface of the inward-recessed portion at least in the vertical direction and the transverse direction of a vehicle. According to the matching mode of the inward-recessed portion and the buffer block, the buffer function is achieved for a hood in the vertical direction and the buffer function is also achieved for the hood in the transverse direction of the vehicle, so that the Y-direction constraint modal frequency of the hood is greatly increased, the frequency of the phenomenon of resonance generated by the hood and external stimulation is reduced, and therefore the risk that a hinge is broken is reduced.

Description

technical field [0001] The invention relates to buffer technology, in particular to a buffer structure used between a hood inner panel of a vehicle engine compartment and a longitudinal beam of the engine compartment. Background technique [0002] The external excitation of the hood of the engine mainly comes from the road surface. According to the different driving speed of the car, the external excitation frequency is generally concentrated in 0-50HZ. Since the vibration frequency of the hood is low in the closed state, it is easy to resonate with the external excitation, so that the hinge of the hood is broken or the hinge mounting seat is damaged. Certain models with a larger hood size and weight (eg SUV models) exacerbate the risk of broken hinges or damaged hinge mounts. [0003] When a car hits a pedestrian, the pedestrian hits the hood outer panel and impacts the hinges. Therefore, in the car design stage, considering the impact of the hinge on pedestrian protectio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D27/04
CPCB62D27/04E05F5/06E05Y2900/536
Inventor 荣兵常晓宇李永生门永新陈勇冯擎峰
Owner ZHEJIANG GEELY HLDG GRP CO LTD