Vehicle Display Energy-Absorbing Structure for Collision Buffering

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Solution Overview

Problem

Existing vehicle display screens lack a safety protection structure, making them vulnerable to damage during collisions and posing a risk to passengers.

Innovation Solution

An energy-absorbing structure comprising a telescopic cavity with a brittle connecting member and an elastic buffer piece, where the brittle member fractures upon impact to convert kinetic energy into fracture energy, and the elastic buffer absorbs residual energy, protecting the display screen.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a display screen is installed in a vehicle without a safety protection structure, then the device complexity is reduced and manufacturing is simpler, but the reliability and passenger safety deteriorate during collisions

Engineering Contradiction:
Improvestructure complexityVSAvoidcollision safety
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent implements energy-absorbing structures (brittle connecting members and elastic buffer pieces) that are pre-installed in the display screen assembly before collision occurs. These structures are designed to activate automatically upon impact, absorbing collision energy and protecting passengers. This resolves the contradiction by adding safety functionality without requiring complex active control systems or increasing manufacturing complexity significantly.

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

Solution Approach 2:

The patent converts the harmful collision force into beneficial energy absorption through specially designed brittle connecting members that fracture to absorb energy, and elastic buffer pieces that deform to dissipate impact energy. This transforms the harmful kinetic energy from the collision into useful energy dissipation, protecting passengers while maintaining relatively simple device structure.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

2Reliability

If an energy-absorbing structure is added to the display screen, then the collision safety and passenger protection are improved, but the device complexity and manufacturing difficulty increase

Engineering Contradiction:
Improvecollision safetyVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The energy-absorbing structure is segmented into distinct functional components: brittle connecting members (first and second) that fracture under impact, and elastic buffer pieces (first and second) that deform to absorb energy. This segmentation allows each component to be optimized for its specific function while keeping the overall structure manageable and manufacturable, resolving the contradiction between safety improvement and complexity increase.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent utilizes parameter changes in material properties - specifically the brittle connecting members are designed with controlled fracture characteristics and the elastic buffer pieces are designed with specific elasticity parameters. By carefully selecting and controlling these material parameters, the structure achieves effective energy absorption without requiring overly complex designs, thus balancing safety improvement with manufacturing feasibility.

Inventive Principle:
Principle #35Parameter changes

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

Effectively absorbs and buffers impact energy, reducing the risk of display screen damage and enhancing passenger safety by converting kinetic energy into potential energy during collisions.

Implementation Method 1

The first connecting member 11 and the second connecting member 12 are connected by a brittle connecting member 13

Methodology Applied
Scientific EffectFracture: Fracture Mechanics

Implementation Method 2

The elastic buffer member 14 is arranged in the telescopic cavity 123. The elastic buffer member 14 can be compressed and deformed by the first connecting member 11 and the second connecting member 12, to absorb energy during collision

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS12179672B2Energy absorbing structure for vehicle-mounted display screen and display screen using the same
Publication Date: 2024.12.31 FUTAIJING PRECISION ELECTRONICS (YANTAI) CO LTD
  • US12179672B2 patent drawing
  • US12179672B2 patent drawing
  • US12179672B2 patent drawing

AI summary

An energy absorbing structure comprises a first connecting member, a second connecting member, a brittle connecting member and an elastic buffering element. The first connecting member comprises a first end portion, and the first end portion defines a first accommodating cavity. The second connecting member comprise a second end portion, the second end portion defines a second accommodating cavity, and the first accommodating cavity communicates with the second accommodating cavity to form a telescopic cavity. The first connecting member and the second connecting member are connected by the brittle connecting member, the brittle connecting member is configured for breaking during a collision to absorb the energy generated by the collision. The elastic buffering element is arranged in the telescopic cavity, and the elastic buffering element is configured to be compressed by the first connecting member and the second connecting element together to deform and absorb energy during a collision.