Display Screen Bracket with Deformable and Frangible Joints
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
As motor vehicles increasingly incorporate display screens in new positions, there is a growing need for safety features to dissipate energy in the event of impacts, as existing solutions fail to adequately absorb and dissipate energy during collisions.
Innovation Solution
A display screen assembly featuring a deformable mounting feature with compression joints to absorb initial impact energy and a frangible mounting feature with breakaway joints to further dissipate energy when the initial absorption capacity is exceeded, utilizing a bracket design with specific configurations and fasteners to manage energy dissipation effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid mounting bracket is used to securely hold the display screen, then the display screen is firmly positioned, but the impact energy cannot be absorbed or dissipated, increasing injury risk during collisions
Solution Approach 1:
The mounting bracket is divided into multiple functional segments: a rigid body for positioning, deformable mounting features (compression joints) for initial energy absorption, and frangible mounting features (breakaway joints) for secondary energy dissipation. This segmentation allows different parts of the same component to serve different functions - maintaining stability under normal conditions while providing progressive energy management during impact events.
Solution Approach 2:
The deformable mounting features are designed in advance to compress and absorb impact energy before the frangible features activate. This preliminary cushioning mechanism is pre-configured in the bracket structure, allowing it to immediately respond to impact forces by deforming the compression joints, thereby reducing the energy transmitted to the display screen and occupant before the breakaway joints engage.
2Loss of energy
If the mounting bracket is made deformable to absorb impact energy, then energy absorption capability is improved, but the display screen positioning stability and support strength are reduced
Solution Approach 1:
Different regions of the mounting bracket are assigned different mechanical properties: the bracket body maintains rigid strength for positioning support, while specific mounting features (compression joints and breakaway joints) are designed with controlled deformability for energy absorption. This local differentiation allows the bracket to simultaneously provide strong support where needed and controlled deformation where energy management is required.
Solution Approach 2:
The patent combines multiple mounting features (compression joints and breakaway joints) within a single integrated bracket structure. This merging allows the bracket to exhibit both rigid support characteristics from its overall structure and energy-absorbing characteristics from its specialized joints, achieving a unified component that provides both positioning stability and impact energy management.
3Loss of energy
If frangible breakaway joints are added to the mounting bracket, then energy dissipation capability is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The mounting bracket is segmented into distinct functional zones: the main body for positioning, compression joints for initial energy absorption, and breakaway joints for secondary energy dissipation. This segmentation allows each feature to be independently designed and optimized while maintaining overall integration, making the complex structure more manageable in terms of design and manufacturing.
Solution Approach 2:
The mounting bracket is designed as a multi-functional component that simultaneously provides positioning support, initial energy absorption through compression, and secondary energy dissipation through breakaway mechanisms. By consolidating these multiple functions into a single integrated bracket rather than separate components, the overall device complexity is reduced while achieving comprehensive energy management capabilities.
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 assembly effectively absorbs and dissipates impact energy, enhancing safety by reducing the risk of injury from collisions, with the deformable and frangible features working in tandem to manage energy beyond the capacity of the deformable mounting feature.
Implementation Method 1
a deformable mounting feature to initially absorb energy in the event of an impact to the display screen
Implementation Method 2
a frangible mounting feature to further dissipate energy from the impact when that energy exceeds the capability of the deformable mounting feature to absorb the energy
Data Source
AI summary
An assembly includes a display screen, a bracket for receiving and holding the display screen, a deformable mounting feature and a frangible mounting feature. The deformable mounting feature is adapted to absorb initial energy in the event of an impact to the display screen. The frangible mounting feature is adapted to further dissipate energy to the extent that the impact energy exceeds the ability of the deformable mounting feature to absorb it.