LED Lighting Apparatus Sealing and Light Distribution
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Solution Overview
Problem
LED lighting apparatuses face issues with waterproofing, dust-proofing, and insect blocking, as well as the need for adjustable light distribution angles without complex mechanisms, especially in outdoor and ceiling-mounted applications.
Innovation Solution
An LED lighting apparatus with a closed structure featuring a main cover, external and inner frames, and a close-and-seal cover, which includes a sealing member and a reflection member to achieve waterproofing, dust-proofing, and adjustable light distribution angles through varying the shape of the inner frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealing structure is added for waterproofing and dust-proofing, then protection against foreign matter is improved, but device complexity and cost increase
Solution Approach 1:
The sealing structure is divided into multiple components: a sealing ring with first and second sealing surfaces, a first sealing member at the first end, and a second sealing member at the second end. This segmentation allows each component to perform a specific sealing function, achieving comprehensive protection while maintaining modularity and ease of assembly.
Solution Approach 2:
The sealing ring is made of a flexible elastic material that can deform to create effective sealing contact between the cover and the housing. This flexibility allows the sealing structure to adapt to manufacturing tolerances and thermal expansion, providing reliable waterproofing and dust-proofing without requiring complex rigid sealing mechanisms.
2Adaptability or versatility
If a complex mechanism is added for adjusting light distribution angle, then adaptability to different installation locations is improved, but device complexity increases
Solution Approach 1:
The inner frame includes reflection surfaces with different local optical properties: a first reflection surface facing the first end for narrow beam distribution, and a second reflection surface facing the second end for wide beam distribution. By positioning the LED at different locations along the elongated axis, the system achieves variable light distribution patterns without requiring moving parts or complex adjustment mechanisms.
Solution Approach 2:
The system provides dynamic adaptability through a simple mechanical approach: the LED can be positioned at either the first end or the second end of the elongated inner frame, or at intermediate positions. This dynamic repositioning allows the lighting apparatus to adapt to different installation scenarios (low ceiling vs. high ceiling) while maintaining a fixed, simple overall structure.
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 provides an economical and simple internal structure for effective waterproofing and adjustable light distribution, maintaining a closed and sealed structure while allowing for various light distribution angles, thus addressing the challenges of foreign matter ingress and lighting efficiency.
Implementation Method 1
a close-and-seal cover closing and sealing both open ends of the main cover to close and seal the inner space of the main cover, wherein the bottom surface of the inner frame supports an emitted LED, and the close-and-seal cover is coupled to the external frame and the inner frame
Data Source
AI summary
An LED lighting apparatus is disclosed. The lighting apparatus according to an exemplary embodiment of the present invention includes: a main cover with an elongated pipe shape having a cross-section formed of a closed curve line and both ends of a length direction formed to be open; an external frame sliding-coupled to an external surface of the main cover along a length direction of the main cover; an inner frame having a shape extending in a direction parallel to the length direction of the main cover and sliding-coupled to an internal surface of the main cover along with the length direction of the main cover to be positioned at the inner space of the main cover; and a close-and-seal cover closing and sealing both open ends of the main cover to close and seal the inner space of the main cover, wherein the bottom surface of the inner frame supports an emitted LED, and the close-and-seal cover is coupled to the external frame and the inner frame.