Snap Connection for Emergency Lighting Panel Assembly

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Solution Overview

Problem

Existing information panels for emergency lighting systems require high operational effort for installation and maintenance due to complex mechanical and electrical connections, leading to increased costs and risk of damage.

Innovation Solution

A snap connection is designed as both a mechanical and electrical conductor, allowing for simplified assembly and maintenance by eliminating the need for separate electrical lines and precise alignment, with snap elements serving as conductors for energy supply and control, and featuring a ring snap connection for enhanced stability and safety.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate mechanical and electrical connections are provided between holder and structural unit, then reliable electrical connection is achieved, but device complexity and installation effort increase

Engineering Contradiction:
Improveelectrical connection reliabilityVSAvoidconnection system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines mechanical and electrical connection functions into a single snap connection element. The snap connection includes both mechanical engagement features (protrusion and recess) and electrical contact elements (conductive contacts), eliminating the need for separate mechanical and electrical connection systems between the holder and structural unit.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The snap connection element serves multiple functions simultaneously: it provides mechanical attachment, electrical connection, and alignment guidance. This multi-functional design reduces the overall number of components while maintaining reliable electrical connectivity and mechanical stability.

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

2Reliability

If precise alignment guidance is provided for mechanical and electrical connections, then connection reliability is improved, but manufacturing precision requirements and design effort increase

Engineering Contradiction:
Improveconnection reliabilityVSAvoidalignment precision
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

By merging mechanical and electrical alignment features into a single integrated snap connection structure, the patent reduces the number of independent alignment requirements. The protrusion and recess geometry provides inherent alignment guidance for both mechanical and electrical elements simultaneously.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The snap connection design creates a self-aligning system where the mechanical and electrical elements are positioned at equivalent alignment potentials. The geometric relationship between protrusion and recess ensures that both mechanical engagement and electrical contact occur at the same alignment stage, eliminating cumulative tolerance errors.

Inventive Principle:
Principle #12Equipotentiality

3Stability of the object's composition

If complex mechanical and electrical connection systems are used, then connection stability is achieved, but installation and maintenance time increase

Engineering Contradiction:
Improveconnection stabilityVSAvoidinstallation and maintenance time
Core Design Contradiction:
Stability of the object's compositionVSLoss of time

Solution Approach 1:

The patent segments the information board into modular components (holder, structural unit with display and light-conducting plate) connected by a simple snap connection. This segmentation allows the structural unit to be quickly detached and reattached without complex tools or procedures, significantly reducing installation and maintenance time.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The snap connection provides dynamic functionality, allowing the structural unit to be easily inserted and locked into position during installation, and quickly removed during maintenance. The connection transitions between locked and unlocked states through simple actions, enabling rapid assembly and disassembly while maintaining stable operation during use.

Inventive Principle:
Principle #15Dynamics

4Reliability

If multiple separate connection elements are provided, then functional reliability is improved, but risk of damage to individual components increases

Engineering Contradiction:
Improvefunctional reliabilityVSAvoidrisk of damage
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

By combining mechanical and electrical connection elements into a single integrated snap connection structure, the patent reduces the number of separate components that could potentially fail or be damaged. The integrated design protects electrical contacts within the mechanical connection housing, reducing exposure to damage during handling and installation.

Inventive Principle:
Principle #5Merging (Combining)

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

This design simplifies the assembly and maintenance of information panels, reduces production costs, and enhances safety by allowing secure electrical connections through mechanical guidance, while reducing the risk of damage and design complexity.

Implementation Method 1

at least one illuminant (6) which has at least one light-emitting diode (17)

Methodology Applied
Scientific EffectLight-emitting diode: Light Emitting Diode

Implementation Method 2

at least one positive-locking snap connection (8, 11) acting on the light-conducting plate (4) forming a mechanical connection

Methodology Applied
Scientific EffectSnap connection: Mechanical Fastener

Data Source

PatentEP2757546B1Information display panel, in particular for an emergency lighting system
Publication Date: 2018.08.29 DIN DIETMAR NOCKER FACILITYMANAGEMENT GMBH
  • EP2757546B1 patent drawingFigure 1
  • EP2757546B1 patent drawingFigure 2~3
  • EP2757546B1 patent drawingFigure 4

AI summary

The board (1) comprises a holder (2), a back-lit display (5), a lighting element (6) having a LED (17), and a light-conductive plate (4) for backlighting the display. The light-conductive plate, the display and the lighting element are arranged to form a detachable assembly (9) for mechanical and electrical connections of the holder. A pair of form-locking snap connection element (8,11) comprises a pair of snap-in element (10,12) which is formed as an electrical conductor for supplying power and/or control of the lighting element.