Plastic Protective Element for Corrosion-Resistant LED Lighting
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Solution Overview
Problem
Conventional LED lighting devices with elongated lamps are susceptible to corrosion when exposed to ammoniacal gases or wet environments, leading to premature failure in applications such as mast operations, wet rooms, and industrial settings.
Innovation Solution
A lighting device featuring a protective element made of plastic material that encases the lamp, providing a barrier against corrosive media, with a translucent wall for light transmission and designed for easy cleaning and fire resistance, allowing the device to be used in corrosive environments without damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional LED lighting devices are used in corrosive environments, then they provide adequate lighting function, but they suffer from corrosion damage and premature failure
Solution Approach 1:
A protective element made of corrosion-resistant material is introduced as an intermediary between the LED lighting device and the corrosive environment. This protective element acts as a barrier that prevents direct contact between corrosive media (ammoniacal gases, moisture, chemicals) and the electrical/electronic components, thereby eliminating corrosion damage while maintaining the lighting function.
Solution Approach 2:
The protective element is designed as a shell or enclosure that completely surrounds the LED lighting device. This shell structure provides comprehensive protection against corrosive environments, allowing the device to be permanently brought into contact with liquid and/or gaseous media without damage to the internal components.
2Reliability
If the lighting device is fully enclosed in a protective element, then protection against corrosive media is improved, but light transmission may be reduced
Solution Approach 1:
The protective element is designed with optical properties that allow light transmission. The material is selected or treated to have appropriate transparency or translucency characteristics, ensuring that while it provides corrosion protection, it does not significantly reduce the illumination intensity or alter the light quality required for the lighting application.
3Reliability
If the protective element is made of plastic material, then resistance to corrosive chemicals is improved, but fire resistance becomes a concern
Solution Approach 1:
The protective element is made from composite materials or plastic materials with added flame-retardant properties. This combines the chemical resistance benefits of plastic materials with fire safety requirements, creating a protective element that resists both corrosive chemicals and fire hazards simultaneously.
4Reliability
If the lighting device is enclosed in a protective element, then protection against moisture ingress is improved, but cleaning accessibility may be reduced
Solution Approach 1:
The protective element is designed as a smooth, continuous shell enclosure that completely seals the lighting device against moisture ingress. The shell is designed with appropriate surface properties and geometry that allow for easy cleaning while maintaining complete protection, enabling the device to be permanently brought into contact with liquid media.
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 solution effectively protects the LED lighting device from corrosion and chemical degradation, extending its service life and ensuring reliable operation in harsh conditions, while allowing for easy installation and maintenance.
Implementation Method 1
The wall of the protective element significantly reduces the extent of contact between the light and corrosive media... at least one area of the wall with an inner surface facing the light-emitting diode light emission surface is translucent
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
The invention relates to a lighting device (10) with an elongated lamp (12) and a protective element (14) made of a plastic material, wherein the lamp (10) has at least one light-emitting diode (16), wherein the protective element (14) has an elongated cavity (20), wherein at least a section of the lamp (12) is received in the cavity (20), wherein the protective element (14) has a wall (22) surrounding the cavity (20), wherein the wall (22) is a closed wall (22), wherein the lamp (12) has a light-emitting diode light emission surface (24), wherein at least a region (23) of the wall (22) is designed to be transparent with an inner surface (26) facing the light-emitting diode light emission surface (24).