Vehicle Display Carrier Deformable Walls Impact Protection

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing display carrying devices in vehicles are rigid and fail to provide adequate protection against head impacts while maintaining effective heat conduction, leading to potential head injuries during accidents.

Innovation Solution

A display carrying device with a force-absorbing portion comprising deformable wall elements that extend from the carrier portion to the mounting portion, forming hollow spaces for cooling and energy absorption, allowing for elastic or plastic deformation to absorb impact energy and reduce passenger injuries.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If rigid heat conducting structures are used to conduct heat from the display, then heat conduction efficiency is improved, but protection properties against head impacts deteriorate

Engineering Contradiction:
Improveheat conduction efficiencyVSAvoidhead impact protection
Core Design Contradiction:
TemperatureVSObject-affected harmful factors

Solution Approach 1:

The force absorbing portion is segmented into multiple wall elements (first wall element, second wall element, third wall element) that form hollow spaces between them. This segmentation allows the structure to deform in a controlled manner during impact while maintaining heat conduction pathways through the wall elements themselves.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The wall elements are designed with specific geometric parameters (oblique extension angles, hollow space configurations) that enable them to change their deformation characteristics based on impact conditions. The parameters are optimized to provide both heat conduction capability and impact energy absorption through controlled deformation.

Inventive Principle:
Principle #35Parameter changes

2Object-affected harmful factors

If deformable wall elements are used to absorb impact energy, then protection properties against head impacts are improved, but heat conduction capability may deteriorate

Engineering Contradiction:
Improvehead impact protectionVSAvoidheat conduction capability
Core Design Contradiction:
Object-affected harmful factorsVSTemperature

Solution Approach 1:

The force absorbing portion combines deformable wall elements with hollow spaces in a composite structure. The wall elements serve as heat conduction pathways while the hollow spaces provide energy absorption capacity. This composite approach allows simultaneous achievement of both heat conduction and impact protection functions.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The wall elements serve multiple functions: they conduct heat from the display device, provide structural support, and absorb impact energy through controlled deformation. The hollow spaces between wall elements contribute to both impact absorption and potentially to cooling airflow, demonstrating multi-functionality that resolves the contradiction between heat conduction and impact protection.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Stability of the object's composition

If rigid structures are used to maintain structural integrity, then structural stability is improved, but energy absorption during impact deteriorates

Engineering Contradiction:
Improvestructural integrityVSAvoidimpact energy absorption
Core Design Contradiction:
Stability of the object's compositionVSUse of energy by moving object

Solution Approach 1:

The force absorbing portion transitions from a static rigid structure to a dynamic deformable structure during impact. The wall elements are designed to deform in a controlled sequence, changing the structural configuration from stable to energy-absorbing state, which resolves the contradiction between maintaining structural integrity and absorbing impact energy.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The hollow spaces between the wall elements are pre-configured to provide cushioning effect before impact occurs. During normal operation, the structure maintains its integrity, but the pre-designed hollow spaces are ready to collapse and absorb energy when impact occurs, providing beforehand cushioning that resolves the contradiction between structural stability and energy absorption.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

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 device effectively absorbs impact energy, reducing head injuries during accidents while maintaining efficient heat conduction through the hollow spaces, meeting regulatory standards for impact protection and cooling.

Implementation Method 1

The at least two wall elements of the force absorbing portion are configured to be deformable at least in a normal direction of the front side of the carrier portion upon an impact on the display and are configured to absorb impact energy of the impact

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Implementation Method 2

the at least two wall elements each comprise at least a portion that extends obliquely (i.e. not parallel and not orthogonal) to the backside of the carrier portion to provide advantageous deformation properties in respect to force absorption and elasticity

Methodology Applied
Scientific EffectPlastic deformation: Plasticity

Implementation Method 3

maintaining efficient heat conduction through the hollow spaces

Methodology Applied
Scientific EffectHeat conduction: Conduction (thermal)

Data Source

PatentEP3257697B1Display carrying device and vehicle comprising same
Publication Date: 2019.05.08 ALPINE ELECTRONICS INC
  • EP3257697B1 patent drawingFigure 1
  • EP3257697B1 patent drawingFigure 2~3
  • EP3257697B1 patent drawingFigure 4~5

AI summary

A display carrying device (2) for a vehicle comprising a carrier portion (4) that is configured to receive a display (5), the carrier portion (4) comprising a front side (6), a backside (8), a topside (10) and a bottom side (12), a mounting portion (14) that is configured to mount the display carrying device (2) to a vehicle panel, and a force absorbing portion (17) connecting the carrier portion (4) and the mounting portion (14) and comprising at least two wall elements (18, 20) that extend from the backside (8) of the carrier portion (4) to the mounting portion (14), wherein the at least two wall elements (18,20) are configured to form at least one hollow space (26, 26c, 38, 40, 42, 51, 52, 54, 56) between the carrier portion (4) and the mounting portion (14), the hollow space (26, 26c, 38, 40, 42, 51, 52, 54, 56) being open at the topside (10) and the bottom side (12) of the carrier portion (4) to allow a cooling fluid to flow through the at least one hollow space (26, 26c, 38, 40, 42, 51, 52, 54, 56), wherein the at least two wall elements (18,20) of the force absorbing portion (17) are configured to be deformable at least in a normal direction of the front side (6) of the carrier portion (4) upon an impact on the display (5) and are configured to absorb impact energy of the impact.