Supercharge Your Innovation With Domain-Expert AI Agents!

Vehicle cavity separation member and application method thereof

A barrier and cavity technology, applied in the field of automotive cavity barrier, can solve the problems of insignificant vibration and noise reduction, poor versatility, etc., and achieve the effects of simple structure, not easy to deform, and favorable for foaming

Active Publication Date: 2012-01-25
ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention overcomes the disadvantages of existing automotive cavity fillers, such as complex structure, poor versatility, and inconspicuous effect of vibration and noise reduction, and provides an automotive cavity barrier and its use method, which has a simple structure and strong versatility. After the barrier is foamed, it closes the cavity of the car body, cuts off the air flow in the cavity, and has an obvious effect on the vibration and noise reduction of the car

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Vehicle cavity separation member and application method thereof
  • Vehicle cavity separation member and application method thereof
  • Vehicle cavity separation member and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: as figure 1 , figure 2As shown, a car cavity barrier includes a closed cuboid skeleton, the inside of which is hollow and evacuated. The frame is made of glass fiber reinforced nylon 66 with a mass fraction of glass fiber content of 25%. The front and rear surfaces of the frame are respectively provided with a reinforcement layer 4 and a vibration damping layer 8 . The reinforcing layer covers the entire front surface of the framework, and the vibration-damping layer covers the entire surface of the rear surface of the framework; the reinforcing layer is made of low-expansion epoxy resin material, with a thickness of 2mm; the vibration-damping layer is made of rubber-modified epoxy resin material, with a thickness of 1.5mm. There are two buckles 5 used to fix the cavity barrier on the reinforcement layer. The buckles are made of glass fiber reinforced nylon 66 with a glass fiber content of 25% by mass. The buckles penetrate the reinforcement layer and a...

Embodiment 2

[0027] Embodiment 2: as image 3 , Figure 4 As shown, a car cavity barrier includes a closed cuboid skeleton, the inside of which is hollow and evacuated. The left and right surfaces of the skeleton are concave-convex surfaces with reinforcing ribs. The cross-section of the concave-convex surfaces is zigzag. After bending, a layer of unfoamed foam material is attached to the concave-convex surface. The concave-convex surface on the left surface of the skeleton is symmetrical to the concave-convex surface on the right surface, and the included angle between the inclined rectangular surface and the symmetrical plane of the concave-convex surfaces on the left and right surfaces of the skeleton is 20°. The uppermost inclined rectangular surface inclines from top to bottom toward the symmetrical plane away from the concave-convex surfaces on the left and right sides of the skeleton. The foam material layer includes the left foam layer 6 on the inclined rectangular surface of th...

Embodiment 3

[0029] Embodiment 3: as Figure 5 , Image 6 As shown, a car cavity barrier includes a closed cuboid skeleton, the inside of which is hollow and evacuated. The left and right surfaces of the skeleton are concave-convex surfaces with reinforcing ribs. The concave-convex surface is composed of four connected rectangular units. The rectangular unit is composed of two triangular surfaces. The overlapping hypotenuses of the two triangular surfaces are convex or Concave inward (shown as convex outward in the figure), two adjacent rectangular units are distributed symmetrically along their connection line, the reinforcement includes oblique reinforcement and transverse reinforcement, and the oblique reinforcement is two triangular faces The bend at the coincidence of the hypotenuses, and the transverse reinforcement is the bend at the junction of two adjacent rectangular units. The concave-convex surface on the left surface of the skeleton is symmetrical to the concave-convex surfa...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a vehicle cavity separation member and an application method thereof for overcoming the defects of the traditional vehicle cavity filling, such as complicated structure, poor generality and unapparent vibration attenuation and noise reduction effects. The vehicle cavity separation member comprises a framework shaped like a closed hexahedron, an enhancement layer and a vibration attenuation layer are respectively arranged on the front surface and the rear surface of the framework, a buckle for fixing the cavity separation member is arranged on the enhancement layer, penetrates through the enhancement layer and is integrated with the framework, a foaming material layer which is not foamed is arranged on each of the upper surface and the lower surface of the framework, the left surface and the right surface of the framework are uneven faces with reinforcing ribs, and a foaming material layer is attached to each uneven face. The buckle is buckled on a metal plate of a vehicle cavity, the vibration attenuation layer is attached to the metal plate of the vehicle cavity, the cavity separation member is baked by electrophoresis so that the foaming material layer isfoamed to separate and seal the vehicle cavity, and the foamed enhancement layer is tightly attached to the metal plate of the vehicle cavity. The whole cavity separation member has the advantages ofsimple structure, high generality and obvious vibration attenuation and noise reduction effects.

Description

technical field [0001] The invention relates to an automobile part, more specifically, to an automobile cavity barrier with good vibration and noise reduction effects and its application method. Background technique [0002] The NVH performance and safety performance of automobiles are comprehensive technical indicators to measure the manufacturing level of modern automobiles. Especially for cars, interior noise and collision safety level are one of the important criteria to measure the grade and brand of cars. The major vehicle manufacturers and component companies in the world's automobile industry attach great importance to the NVH performance and safety performance of vehicles. These two vehicle performances have also become an important weight for the market competitiveness of various brands of models. There are some closed box reinforced beam structures in the car body, the so-called "bypass cavity structure", such as threshold, front wall, side wall and so on. The ca...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B60R13/08
CPCB62D29/002
Inventor 岳洋顾颍王海林刘强马芳武赵福全
Owner ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com