Hollow Profile Structural Component with Internal Reinforcement Element

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Solution Overview

Problem

Modern motor vehicle structural components made of hollow profiles often collapse under excessive load, leading to limited deformation work and structural weakening due to fastening means, which contradicts the lightweight construction requirements.

Innovation Solution

A structural component with a reinforcement element extending along the profile segment's length, which absorbs impact energy by moving against multiple fastening means, distributing the force and enhancing stability through positive-fit means and secure clamping or welding, allowing for additional deformation energy absorption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Weight of moving object

If hollow profiles are used for structural components, then lightweight construction is achieved, but the profile collapses when load is exceeded and deformation work capacity is limited

Engineering Contradiction:
Improveweight of structural componentVSAvoidload-bearing capacity and deformation work
Core Design Contradiction:
Weight of moving objectVSStrength

Solution Approach 1:

The patent combines the hollow profile (providing lightweight structure) with a reinforcement element (providing enhanced strength and deformation capacity). This composite structure allows the component to maintain low weight while achieving the required load-bearing capacity and deformation work through the synergistic combination of the hollow profile and the reinforcement element.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The structural component is divided into distinct functional segments: the hollow profile segment (for lightweight construction) and the reinforcement element (for strength and deformation capacity). This segmentation allows each part to perform its specific function optimally while together they resolve the contradiction between weight and strength.

Inventive Principle:
Principle #1Segmentation

2Stability of the object's composition

If fastening means are used to attach structural components, then structural stability is achieved, but the fastening means weaken the structure

Engineering Contradiction:
Improvestructural stabilityVSAvoidstructural strength at fastening locations
Core Design Contradiction:
Stability of the object's compositionVSStrength

Solution Approach 1:

The reinforcement element is positioned in advance within the hollow profile, specifically arranged to bear against the fastening means before any impact or load is applied. This preliminary positioning ensures that when fastening means are installed, they are supported by the reinforcement element rather than directly weakening the hollow profile structure.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The reinforcement element acts as an intermediary between the fastening means and the hollow profile. It transfers and distributes the forces from the fastening means, preventing direct stress concentration and structural weakening at the fastening locations while still achieving the required structural stability.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Strength

If reinforcement elements are added to strengthen structural components, then stability and deformation energy absorption are improved, but device complexity increases

Engineering Contradiction:
Improvestability and deformation energy absorptionVSAvoidstructural complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The reinforcement element is designed as a slender, profiled component that can be easily inserted into the hollow profile. Its flexible yet strong construction allows it to provide enhanced stability and deformation energy absorption without significantly increasing the overall device complexity or manufacturing difficulty.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The reinforcement element utilizes the internal space of the hollow profile in a third dimension, placing the reinforcement inside the existing profile structure rather than adding external components. This dimensional approach provides strength enhancement without increasing the external dimensions or overall complexity of the structural component.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution provides enhanced stability and deformation energy absorption, preventing structural component collapse and maintaining lightweight construction by distributing impact forces effectively across the component's length.

Implementation Method 1

In case of an impact, such structural components are deformed in order to absorb the kinetic energy that acts upon the motor vehicle during the impact by transforming this energy into deformation work

Methodology Applied
Scientific EffectDeformation: Deformation

Data Source

PatentUS10857868B2Structural component for a motor vehicle having a reinforcing element
Publication Date: 2020.12.08 LINDE WIEMANN
  • US10857868B2 patent drawing
  • US10857868B2 patent drawing
  • US10857868B2 patent drawing

AI summary

The invention relates to a structural component for a motor vehicle, comprising an at least partially hollow profiled segment, which can be connected to a motor vehicle body by means of at least two fastening elements arranged in a fastening section. The problem addressed by the invention is that of increasing the crash safety of the structural component. This problem is solved in that a reinforcing element (6) is arranged in the fastening section between a lateral impact surface (16) and the fastening elements (4), which reinforcing element extends in the longitudinal direction of the profiled segment and, in the event of an impact from the impact surface, laterally comes into contact with the fastening means at least partially by means of displacement of the fastening elements, the impact energy thus being absorbed.