Underwater Light Nested Housing Sealing
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Solution Overview
Problem
Existing underwater lights for swimming pools, particularly those using LED strips, face challenges with watertightness, especially in chlorinated water, as chlorine can damage the encapsulation compounds, leading to leaks and requiring additional covers for sealing.
Innovation Solution
An underwater light design featuring an elongated inner housing profile with an LED strip inserted into a shorter outer housing profile, where both ends are filled with a hardened sealing compound, providing interlocking and chlorine-resistant materials like polyvinyl chloride, and scattering particles for homogeneous light distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If LED strips are embedded in a watertight all-round encapsulation, then watertightness is improved, but chlorine in the water can diffuse into the encapsulation compound and damage it, making the watertightness void
Solution Approach 1:
The housing is divided into an inner housing profile and an outer housing profile, creating a nested structure. The LED strip is embedded in the inner housing, which is then inserted into the outer housing with sealing compound at both ends, segmenting the protection system to prevent chlorine diffusion damage
Solution Approach 2:
The invention uses a composite structure combining inner and outer housing profiles made of chlorine-resistant materials (such as polyvinyl chloride or stainless steel), sealed with sealing compound, creating a composite protective system that resists chlorine penetration while maintaining watertightness
2Reliability
If additional covers are added to ensure watertightness, then sealing reliability is improved, but device complexity increases
Solution Approach 1:
The inner housing profile, outer housing profile, and sealing compound are merged into a single integrated assembly unit. The LED strip with inner housing is inserted into the outer housing, and the sealing compound simultaneously seals both ends, combining multiple sealing functions into one structure
Solution Approach 2:
The inner housing profile is nested within the outer housing profile, with the LED strip embedded in the inner housing. This nested arrangement allows the sealing compound to seal the interface between the two housing profiles at both ends, creating a compact integrated structure without additional external covers
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
This design achieves enhanced permanent watertightness and homogeneous illumination, protecting against chlorine damage and eliminating the need for additional covers, ensuring reliable operation in chlorinated water environments.
Implementation Method 1
The material, in particular polyvinyl chloride, of the outer housing and/or inner housing is preferably mixed with scattering particles, so that the light generated is scattered on these particles.
Implementation Method 2
at both ends of the arrangement of inner and outer housing profile the inner area of the outer housing profile between its end and the associated end of the inner housing profile is filled with a hardened sealing compound
Data Source
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AI summary
The invention relates to an underwater light, particularly for swimming pools, comprising a longitudinally extended inner housing profile (1) into which an LED strip (3) with a plurality of light-emitting diodes is inserted, and a longitudinally extended outer housing profile (2) into which the inner housing profile (1) is inserted, wherein at both ends of the arrangement of inner and outer housing profiles (1, 2) the inner region of the outer housing profile (2) between its end and the associated end of the inner housing profile (1) is filled with a hardened potting compound (11). The invention also relates to a method for manufacturing an underwater light.