Recessed Clamping Unit Layout for Aerodynamic Lighting Integration

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Solution Overview

Problem

Existing methods for illuminating elongated structures like cable-stayed bridges result in high energy consumption, increased air resistance, and maintenance difficulties due to the use of powerful light sources and additional shells, leading to inefficient aesthetic lighting and elevated operational costs.

Innovation Solution

An elongated clamping unit with recesses in its interior to house electrical functional units, such as lighting units, maintaining a minimal increase in cross-sectional area and aerodynamic properties by arranging clamping elements efficiently within the shell.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If lighting elements are retrofitted to the clamping unit using clamps, then the aesthetic lighting effect is improved, but the air resistance increases due to turbulence around the lighting elements

Engineering Contradiction:
Improveaesthetic lighting effectVSAvoidair resistance
Core Design Contradiction:
Illumination intensityVSObject-affected harmful factors

Solution Approach 1:

The lighting element is merged with the clamping unit by integrating it into a recess of the shell. The shell encloses the lighting element, merging the lighting function with the structural component, thereby eliminating the need for separate clamps and reducing air resistance while maintaining aesthetic lighting effects.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The lighting element is nested within the shell by placing it in a recess that projects into the interior space of the shell. This nesting approach allows the lighting element to be housed within the existing structure, minimizing the increase in cross-sectional area and reducing turbulence-induced air resistance.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Object-affected harmful factors

If the clamping unit is clad with an additional shell to house lighting elements, then the aerodynamic properties are improved, but the cross-sectional area increases significantly

Engineering Contradiction:
Improveaerodynamic propertiesVSAvoidcross-sectional area
Core Design Contradiction:
Object-affected harmful factorsVSArea of moving object

Solution Approach 1:

Instead of adding a complete additional shell, the invention applies the shell structure locally only where needed - specifically, a recess is created in the shell at the position where the lighting element requires housing. This localized approach maintains aerodynamic properties while minimizing the increase in cross-sectional area.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The lighting element is accommodated by creating a recess that projects into the interior space of the shell, utilizing the internal volume rather than adding external bulk. This dimensional approach allows the lighting element to be housed without significantly increasing the external cross-sectional dimensions of the clamping unit.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Adaptability or versatility

If an additional shell is used to house lighting elements, then the lighting integration is improved, but the maintenance difficulty increases

Engineering Contradiction:
Improvelighting integrationVSAvoidmaintenance difficulty
Core Design Contradiction:
Adaptability or versatilityVSEase of repair

Solution Approach 1:

The lighting element is extracted from a completely enclosed shell and placed in a recess that allows access. The shell is designed with an opening or accessible recess that enables the lighting element to be removed and replaced without dismantling the entire clamping unit, thereby facilitating maintenance while maintaining integration.

Inventive Principle:
Principle #2Taking out (Extraction)

4Adaptability or versatility

If multiple components are used to arrange lighting elements, then the lighting functionality is improved, but the production cost increases

Engineering Contradiction:
Improvelighting functionalityVSAvoidproduction cost
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The shell is designed to integrate multiple functions: structural support, aerodynamic fairing, and lighting element housing. By merging these functions into a single component with a recess, the number of separate parts is reduced, simplifying assembly and lowering production costs while maintaining lighting functionality.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3334864B2Elongated clamping unit
Publication Date: 2025.12.24 DYWIDAG-SYSTEMS INTERNATIONAL GMBH
  • EP3334864B2 patent drawingFigure 1~2
  • EP3334864B2 patent drawingFigure 3~5
  • EP3334864B2 patent drawingFigure 6~8

AI summary

The invention relates to an elongated clamping unit (100) with a casing (102), which surrounds an interior (104), and a plurality of clamping elements (106), which run in the longitudinal direction (A) of the clamping unit (100) and are received in the interior (104) of the casing (102). According to the invention, the casing (102) has a depression (108) which protrudes into the interior (104) at at least one circumferential position, wherein at least one electric functional unit (112), for example at least one lighting unit, and at least one connection line (114a, 114b) for the at least one electric functional unit (112) are received in said depression. Alternatively, the at least one electric functional unit can also be received in a paired recess of a water-repelling element which is arranged on the outer surface of the casing.