Lighting Profile Sealing with Integrated Plug Elements

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Solution Overview

Problem

Existing light band systems face challenges in sealing the channel-like receiving space effectively at the end areas, leading to potential ingress of dust and moisture, which compromises the protection of electrical and electronic components.

Innovation Solution

The introduction of plug-like sealing elements that fit form-fittingly into the front area of the receiving space, exerting pressure on the profile parts to enhance sealing, along with through-openings for cables and optional sealing inserts, and end caps that provide additional pressure and protection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If the receiving space is sealed at the front area, then protection against dust and moisture is improved, but assembly complexity increases due to additional sealing components

Engineering Contradiction:
Improveprotection against dust and moistureVSAvoidassembly complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The sealing element is integrated directly into the profile part to form a unified component. The sealing element and profile part are designed as a single integrated structure where the sealing function is built-in, eliminating the need for separate sealing components and reducing assembly steps while maintaining effective dust and moisture protection.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The sealing element is designed as a flexible component that can be integrated into the profile part. This flexible sealing structure adapts to the receiving space geometry and provides effective sealing against dust and moisture without requiring complex rigid sealing mechanisms, thereby simplifying the overall assembly.

Inventive Principle:
Principle #30Flexible shells and thin films

2Device complexity

If sealing elements are integrated into the profile part, then assembly is simplified, but manufacturing precision requirements increase

Engineering Contradiction:
Improveassembly simplicityVSAvoidintegration precision
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The sealing element is designed with specific dimensional parameters that allow for tolerance compensation. By optimizing the geometry and material properties of the integrated sealing element, the design accommodates manufacturing variations while maintaining effective sealing, thereby reducing the stringency of manufacturing precision requirements.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The integrated sealing element features localized sealing surfaces and structures that concentrate sealing functionality in specific areas. This local quality approach allows the majority of the profile part to be manufactured with standard tolerances while only requiring high precision in the critical sealing zones, thereby balancing manufacturing precision requirements with assembly simplicity.

Inventive Principle:
Principle #3Local quality

3Object-affected harmful factors

If the receiving space is completely enclosed, then component protection is improved, but cable access becomes more difficult

Engineering Contradiction:
Improvecomponent protectionVSAvoidcable access
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The enclosed receiving space is segmented to include integrated cable access features. The profile part is divided into sections where cable entry points are built-in, allowing cables to pass through sealed conduits or designated openings while maintaining the overall enclosed protection. This segmentation enables both complete enclosure for protection and facilitated cable access.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The integrated sealing element serves as an intermediary structure that provides sealed cable access. Cables pass through the sealing element via integrated conduits or grommets that maintain the seal while allowing cable passage. This intermediary approach enables cable access without compromising the enclosed protection of the receiving space.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Object-affected harmful factors

If pressure is exerted on the profile part, then sealing effect is improved, but structural stability may be compromised

Engineering Contradiction:
Improvesealing effectVSAvoidstructural stability
Core Design Contradiction:
Object-affected harmful factorsVSStability of the object's composition

Solution Approach 1:

Pressure for sealing purposes is applied locally at the sealing surfaces rather than uniformly across the entire profile part. The integrated sealing element is designed to concentrate sealing force at specific contact points where dust and moisture infiltration would occur, while the rest of the profile part maintains its structural stability without excessive loading.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The material properties and geometric parameters of the integrated sealing element are optimized to achieve effective sealing with minimal pressure. By adjusting the sealing element's hardness, elasticity, and contact surface area, the design achieves adequate sealing effect while maintaining structural stability of the overall profile part under normal operating conditions.

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

Ensures a reliable and complete enclosure of the receiving space, protecting components from dust and moisture while allowing for easy passage of cables, thereby achieving a higher protection class with simplified assembly and maintenance.

Implementation Method 1

the sealing element consists of an at least slightly compressible material and is designed in such a way that when it is not arranged in the receiving space it has a slightly enlarged cross section compared to the cross section of the receiving space

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Implementation Method 2

special means are provided which exert pressure on the outside of the profile parts in the front area of the receiving space in order to optimize the sealing effect of the sealing elements

Methodology Applied
Scientific EffectMechanical pressure: Pressure Increase

Implementation Method 3

end caps to be fastened in the front area, which in the fastened state exert additional pressure on at least one of the profile parts

Methodology Applied
Scientific EffectMechanical pressure: Pressure Increase

Data Source

PatentEP3196549B1Arrangement for forming an elongated storage space for lighting units
Publication Date: 2018.10.24 ZUMTOBEL LIGHTING GMBH
  • EP3196549B1 patent drawingFigure 1~3
  • EP3196549B1 patent drawingFigure 4~6
  • EP3196549B1 patent drawingFigure 7~8

AI summary

An arrangement for forming an elongated, channel-like receiving space (145), which is designed in particular for receiving lighting units (31), comprises two elongated profile parts (140, 150) which are connected to each other in a form-fitting or clamping manner to form the receiving space (145), wherein a sealing element (10) is arranged on each of the end faces of the receiving space (145), which fills the receiving space (145) in the end face area.