Curved Lighting Base Body for Dust Shedding

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Solution Overview

Problem

Conventional lighting devices with plate-shaped base bodies and vertical cooling ribs suffer from dust and dirt clogging, leading to reduced cooling efficiency and increased maintenance costs, especially in high-ceilinged environments like exhibition halls.

Innovation Solution

A lighting device with a plate-shaped base body featuring a conical or similarly shaped upper side that directs dust, dirt, and contaminants towards the outer circumference for easy discharge, combined with a cooling element and a detachable supporting frame, and a coating or surface structure that prevents adhesion and promotes water repellency, ensuring efficient cooling and easy maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If cooling fins are arranged vertically on a plate-shaped base body, then cooling efficiency is improved, but dust and dirt accumulation occurs leading to reduced cooling performance over time

Engineering Contradiction:
Improvecooling efficiencyVSAvoiddust and dirt accumulation
Core Design Contradiction:
TemperatureVSObject-affected harmful factors

Solution Approach 1:

The base body is designed with a curved, dome-shaped upper surface instead of a flat plate. This curvature causes dust and dirt to slide off the surface due to gravity, preventing accumulation on the cooling fins while maintaining vertical fin arrangement for effective cooling

Inventive Principle:
Principle #14Spheroidality (Curvature)

2Area of stationary object

If the lighting device is installed in high-ceilinged spaces, then illumination coverage is improved, but maintenance and cleaning become more difficult and costly

Engineering Contradiction:
Improveillumination coverage areaVSAvoidmaintenance accessibility
Core Design Contradiction:
Area of stationary objectVSEase of operation

Solution Approach 1:

The curved base body surface automatically sheds dust and dirt through gravitational force, providing self-cleaning functionality. This eliminates the need for manual cleaning operations, making the device suitable for high-ceilinged spaces where maintenance would otherwise be difficult and expensive

Inventive Principle:
Principle #25Self-service

3Temperature

If regular cleaning and maintenance are performed, then cooling efficiency is maintained, but operational costs and time investment increase significantly

Engineering Contradiction:
Improvecooling efficiencyVSAvoidmaintenance time and cost
Core Design Contradiction:
TemperatureVSLoss of time

Solution Approach 1:

The curved surface design enables automatic dust and dirt removal through gravity, providing continuous self-cleaning without human intervention. This maintains optimal cooling efficiency throughout the device's operational life while eliminating maintenance time and associated costs

Inventive Principle:
Principle #25Self-service

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 design provides a stable, cost-effective, and easy-to-maintain lighting solution with enhanced cooling efficiency, reducing operational costs and eliminating the need for frequent cleaning and safety precautions in high-ceilinged spaces.

Implementation Method 1

the upper side of the plate-shaped base body is in cross-section approximately conical, conical, cone-shaped, frustoconical, convex, hemispherical or hemispherical, cup-shaped, pot-shaped or bowl-shaped, such that dust striking the upper side, Dirt or other contaminants and/or incident water or similar media are guided in the direction of its longitudinal axis towards its outer circumference and can be discharged via the outer circumference

Methodology Applied
Scientific EffectGravity: Gravitation

Implementation Method 2

A cooling element is arranged on the base body, comprising cooling fins that extend essentially perpendicularly from the top of the base body and from the outer circumference of the base body in the direction of its longitudinal axis

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 3

cooling fins that extend essentially perpendicularly from the top of the base body and from the outer circumference of the base body in the direction of its longitudinal axis

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 4

a coating or surface structure that prevents adhesion and promotes water repellency

Methodology Applied
Scientific EffectHydrophobic effect: Hydrophobe

Data Source

PatentEP3336423B1Lighting device, a method for producing a base body and/or cooling element of the illumination device and their use
Publication Date: 2019.11.06 GIFAS BETEILIGUNGEN
  • EP3336423B1 patent drawingFigure 1~2
  • EP3336423B1 patent drawingFigure 3~5
  • EP3336423B1 patent drawingFigure 6~8

AI summary

Lighting device (10) with a substantially plate-shaped base body (12), at least partially on the upper surface (14) of which a cooling element (20) is arranged, the cooling element comprising cooling fins (22) extending substantially perpendicularly away from the upper surface (14) of the base body (12) and extending from the outer circumference (16) of the base body (12) in the direction of the longitudinal axis (24) of the base body (12), and on the lower surface (18) of which a retaining or supporting element (26) comprising at least one light source (28) can be attached, wherein the upper surface (14) of the plate-shaped base body (12) is designed such that dirt, dust or other impurities and/or water or similar media striking the upper surface (14) are guided in the direction of its longitudinal axis (24) towards its outer circumference (16) and can be discharged via the outer circumference (16).