Vehicle body structure capable of resisting small offset impact and casting method of front connecting piece

A connecting piece and small offset technology, applied in the substructure, superstructure, vehicle components, etc., can solve the problems of single collision force transmission path, difficult to resist small offset collision, etc., to ensure safety, ensure the lightweight of the body, The effect of reducing the number of

Active Publication Date: 2021-04-09
HUNAN UNIV
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reinforcement plate is subjected to the impact of collision and impact to collapse and absorb the collision energy, and the collision force is decomposed and guided through the guide surface on the reinforcement plate assembly. The purpose of this reinforcement structure is to resist the small offset collision of the vehicle, but the collision force The conduction path is single, and it is difficult to resist small offset collisions

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 body structure capable of resisting small offset impact and casting method of front connecting piece
  • Vehicle body structure capable of resisting small offset impact and casting method of front connecting piece
  • Vehicle body structure capable of resisting small offset impact and casting method of front connecting piece

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as figure 1 As shown, a vehicle body structure resistant to small offset collisions includes a front anti-collision beam 101, a front longitudinal beam 4 symmetrically arranged along the front anti-collision beam 101, and a force-uploading path structure located above the front anti-collision beam 101. An energy-absorbing box 102 is arranged between the front longitudinal beam 4 and the front anti-collision beam 101. It is characterized in that the force-uploading path structure includes an upper beam 501 and a body side structure arranged symmetrically along the upper beam 501. The body side structure It includes a vertical connecting beam 3, an upper longitudinal beam 502, a front connecting piece 2 and an integrated side panel 7, one end of the vertical connecting beam 3 is connected to the front longitudinal beam 4, and the other end is connected to the upper longitudinal beam 502, the One end of the upper longitudinal beam 502 is connected to the upper cross m...

Embodiment 2

[0047] A method for casting a front connector 2 of a vehicle body structure resistant to small offset bumps, comprising the following steps:

[0048] S1. Mix and melt the aluminum alloy material, and preheat the mold for casting at 180-220°C;

[0049] S2. Inject the mixed and smelted aluminum alloy material into the preheated mold, and then close the mold;

[0050] S3. Inject oxygen into the injection cavity and cavity of the mould, make the oxygen fill the injection cavity and the cavity and get rid of the rest of the gas, so that the aluminum and oxygen react to form dispersed aluminum oxide particles;

[0051] S4. Push the molten aluminum alloy material to fill the cavity through the injection punch, end the pressurization and demould after the metal solidifies.

[0052] In this embodiment, the above-mentioned casting method is used to cast the front connector 2 of the vehicle body structure. Before the injection process, oxygen is injected into the injection cavity and th...

Embodiment 3

[0056] A method for casting a front connector 2 of a vehicle body structure resistant to small offset bumps, comprising the following steps:

[0057] S1. Mix and melt the aluminum alloy material, and preheat the mold for casting at 180-220°C;

[0058] S2. Inject the mixed and smelted aluminum alloy material into the preheated mold, and then close the mold;

[0059] S3. Inject oxygen into the injection cavity and cavity of the mould, make the oxygen fill the injection cavity and the cavity and get rid of the rest of the gas, so that aluminum and oxygen react to form dispersed aluminum oxide particles;

[0060] S4. Push the molten aluminum alloy material to fill the cavity through the injection punch, end the pressurization and demould after the metal solidifies.

[0061]Specifically, the aluminum alloy material is calculated by mass fraction: 7% of silicon element, 0.5% of magnesium element, 2% of zinc element, 0.4% of copper element, 0.75% of nickel element, 0.75% of tin elem...

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 provides a vehicle body structure capable of resisting small offset collision, which comprises a front anti-collision cross beam, front longitudinal beams symmetrically arranged along the front anti-collision cross beam and an upper force transmission path structure positioned above the front anti-collision cross beam, and an energy absorption box is arranged between the front longitudinal beams and the front anti-collision cross beam; the upper force transmission path structure comprises an upper cross beam and vehicle body side face structures symmetrically arranged along the upper cross beam, each vehicle body side face structure comprises a vertical connecting beam, an upper longitudinal beam, a front connecting piece and an integrated side wall, one end of each vertical connecting beam is connected with the corresponding front longitudinal beam, and the other end of each vertical connecting beam is connected with the corresponding upper longitudinal beam, the other end is connected with the front connecting piece, and the front longitudinal beam and the integrated side wall are respectively connected with the front connecting piece. According to the vehicle body structure, a plurality of closed-loop paths are formed, collision force is effectively transmitted, and the safety of passengers is guaranteed. The invention further provides a casting method of the front connecting piece of the vehicle body structure capable of resisting small offset collision.

Description

technical field [0001] The invention relates to the field of automobile body structure design, in particular to a body structure resistant to small offset bumps and a casting method for front connecting parts [0002] technical background [0003] Small offset collision is a common type of accident. According to the vehicle accident data collected by CIDAS from 2011 to June 2013, the proportion of small offset collision accidents is 15%. In order to better simulate actual traffic accidents and protect personal safety, the Insurance Institute for Highway Safety IIHS has developed a frontal 25% offset collision test to detect the performance of vehicles against small offset collisions, that is, vehicles travel at 64.4km / h±1km / h The speed per hour, 25% ± 1% overlap rate hits the fixed rigid barrier head-on. In this mode, the front anti-collision beam, energy-absorbing box, and front longitudinal beam of most vehicles have no or little contact with the barrier during the collisi...

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): B62D21/15B60R19/34B62D25/02B62D25/00B22D17/00B22D27/00C22C21/02
CPCB62D21/152B60R19/34B62D25/025B62D25/00B22D17/00B22D27/006C22C21/02
Inventor 姜潮雷飞韩旭张天昊
Owner HUNAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap