Extruded Polymeric Lighting Section Bar with Open End Insertion
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Solution Overview
Problem
Existing lighting solutions for roofing installations, such as pergolas and curtains, face challenges in customization, ease of installation, and protection of LED strips from environmental factors, as they often require sealed sections that are difficult to modify and replace individual LEDs without exposing them to dust and liquids.
Innovation Solution
A lighting device featuring a section bar made of extruded polymeric material with an open end to allow removable insertion and housing of LED strips, providing IP65-IP68 protection and acting as both a containment and diffuser, with a protective casing that ensures the LED strip is already protected against dust and liquids, allowing for easy customization and replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the section bar is closed and sealed at both ends to protect LED diodes from external agents, then protection against dust and liquids is improved, but customization and ease of installation are worsened
Solution Approach 1:
The section bar is divided into a protective section (closed at both ends) and an open end section (with one open end). This segmentation allows the LED diodes to be protected in the closed section while enabling easy insertion and customization at the open end, resolving the contradiction between protection and ease of installation
Solution Approach 2:
The open end section acts as an intermediary element between the protected LED diodes and the external environment. It allows for easy insertion, customization, and maintenance of LED strips while the closed protective section maintains environmental protection, thus resolving the contradiction
2Reliability
If the section bar is closed and sealed at both ends to protect LED diodes, then protection from external agents is improved, but device complexity and manufacturing cost are worsened
Solution Approach 1:
The section bar is segmented into protective closed sections and open end sections, allowing protection where needed while simplifying installation areas. This reduces overall device complexity by eliminating the need for complex sealing mechanisms at all locations
Solution Approach 2:
The open end section can be easily replaced or customized if needed, acting as a disposable or easily replaceable component. This reduces manufacturing complexity of the entire system by allowing simple, inexpensive open-end sections rather than complex sealed sections throughout
3Reliability
If the LED strip is fixed inside the closed section bar, then protection is improved, but ease of repair and replacement are worsened
Solution Approach 1:
The section bar is segmented with an open end section that allows the LED strip to be easily inserted and removed. This segmentation enables maintenance and repair access while the closed protective section maintains environmental protection, resolving the contradiction between protection and ease of repair
Solution Approach 2:
The open end section provides dynamic access for inserting and removing LED strips, while the closed protective section remains static for protection. This dynamic design allows easy replacement of LED strips without compromising the protective function, resolving the contradiction
4Reliability
If plugs are used to seal the ends of the section bar, then protection is improved, but manufacturing complexity and cost are worsened
Solution Approach 1:
The section bar is segmented into closed protective sections and open end sections. This eliminates the need for complex plugs and seals at all locations, reducing manufacturing complexity while maintaining protection where required
Solution Approach 2:
The complex plug and seal components are extracted/removed from the design entirely at the open end section. Instead of using plugs, the open end section relies on the inherent protection of the LED strip and the structural design, simplifying manufacturing
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 enables quick, easy, and cost-effective installation of a uniform lighting system that is customizable and maintains protection of the LED strips from environmental factors, providing aesthetically pleasing and high-quality lighting without the need for additional sealing or complex manufacturing processes.
Implementation Method 1
at least one LED strip (40), in particular comprising a plurality of LED diodes (41)
Implementation Method 2
said section bar 30 comprises at least one portion (35) which is configured to allow, at least in part, the transmission towards the external environment of the light generated by said LED strip (40)
Data Source
Figure 1~4
Figure 5~7
AI summary
Improved lighting device (18) for an installation and/or for a structure in which lighting is required and/or provided, preferably for a roofing installation (1), characterized in that it comprises: - a section bar (30) made of extruded polymeric material and comprising a longitudinally extending seat (31), said longitudinally extending seat (31) comprising a cavity (32) which is defined inside said section bar (30), - at least one LED strip (40) which is removably inserted and housed, at least in part, in said cavity (32) of said section bar (30), said LED strip (40) comprises a plurality of LED diodes (41), which are connected to each other, and a protective casing and/or coating (43), for covering said LED diodes (41), which is configured so that said LED strip (40) is already protected on its own against the penetration of dust and against any penetration of liquid substances, said protective casing and/or coating (43) of said LED strip (40) having protection level, defined according to IEC 60529, which: - as a first characteristic figure it is greater than or equal to 5, preferably equal to 6, - as a second significant digit it is greater than 1, preferably equal to or greater than 4, and also characterized by the fact that: - in correspondence with at least one end of said section bar (30), said cavity (32) of said section bar (30) is and remains open/communicating towards the outside so as to allow the removable insertion of said at least one LED strip (40), - said section bar (30) comprises at least one portion (35) which is configured to allow, at least in part, the transmission towards the external environment of the light generated by said LED strip (40).