Display Screen Mounting With Dual Damper Vibration Control

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Solution Overview

Problem

Existing display screen mounting systems in vehicles face issues with sub-optimal viewing angles due to fixed predetermined positions, which do not accommodate varying passenger heights or preferences, and suffer from instability in manual systems prone to inadvertent movement during vehicle motion.

Innovation Solution

A display screen surface-mounting structure featuring a dual damper system with an electric drive and manual adjustment mechanism, where the second damper connected to the motor has a higher damping force, allowing secure electric rotation and manual adjustment to optimal viewing angles, while preventing vibration-induced movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If electric drive rotation is used to rotate the display screen to a predetermined position, then the rotation is repeatable and secure, but the viewing angle cannot be adjusted for different user preferences or heights

Engineering Contradiction:

Improverotation stabilityVSAvoidviewing angle adjustability

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The system transitions from a purely electrically fixed position to a dynamic hybrid system where the display screen can be initially positioned by the electric drive and then manually adjusted by the user. This allows the system to adapt to different user needs while maintaining the initial secure positioning capability.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The first damper acts as an intermediary element between the electric drive and the display screen, allowing controlled manual adjustment while maintaining connection to the electric positioning system. This mediator enables both electric positioning and manual fine-tuning.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If manual rotation mechanism is used to allow user adjustment of display screen angle, then viewing angle adaptability is improved, but the system becomes prone to inadvertent movement due to vibration

Engineering Contradiction:

Improveviewing angle adjustabilityVSAvoidposition stability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The first damper is installed beforehand in the manual adjustment mechanism to cushion and dampen vibrations before they can cause inadvertent movement of the display screen. This preemptive damping prevents the stability issues that would otherwise occur with pure manual mechanisms.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The damping coefficient of the first damper is specifically designed to provide sufficient resistance to vibration-induced movement while still allowing intentional manual adjustment. By changing the damping parameter, the system achieves both stability and adjustability.

Inventive Principle:

Principle #35Parameter changes

3Reliability

If higher damping force is applied to prevent vibration-induced movement, then position stability is improved, but manual adjustment becomes more difficult

Engineering Contradiction:

Improveposition stabilityVSAvoidmanual adjustment ease

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

Different damping forces are applied at different locations in the mechanism. The first damper in the manual adjustment path has a lower damping force to allow easy manual adjustment, while the second damper in the electric drive path has a higher damping force to prevent vibration-induced movement during electric positioning.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The damping forces are intentionally made asymmetric - the first damper provides lighter damping for user-friendly manual adjustment, while the second damper provides heavier damping for stable electric positioning. This asymmetric damping configuration optimizes both manual operation and electric control performance.

Inventive Principle:

Principle #4Asymmetry

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

Enables secure, repeatable, and adjustable display screen positioning, accommodating different user preferences and reducing vibration-related issues, by allowing electric rotation to a predetermined position and manual fine-tuning for optimal viewing angles.

Implementation Method 1

the rotational movement mechanism comprises an electric drive, a manual rotational adjustment mechanism and a first damper arranged to be connected to one side of a connected display screen by the first connector in use and further comprising a second damper arranged to be connected to an opposite side of a connected display screen

Methodology Applied

Scientific EffectDamping: Damping

Data Source

PatentEP2981437B1Display screen mounting

Publication Date: 2017.03.15 BENTLEY MOTORS

AI summary

A display screen surface-mounting structure (100) comprising a display screen connector (111, 113), a surface connector (115, 117) for connecting the structure to a surface in use, and further comprising a rotational movement mechanism for axial rotation of an attached display screen (400) in use, wherein the rotational movement mechanism comprises an electric drive (109) and an manual rotational adjustment mechanism, and wherein the rotational movement mechanism comprises first and second dampers (105, 109), arranged to be connected either side of a connected display screen (400), in use.