Pool Light Assembly With Water-Channel LED Cooling
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Solution Overview
Problem
Existing pool lighting systems, particularly those using high-intensity LEDs, suffer from excessive heat generation, leading to rapid deterioration and increased maintenance needs, without effective heat dissipation solutions that maintain the physical appearance and dimensions of existing pool structures.
Innovation Solution
A pool light assembly design that minimizes the distance between high-intensity LEDs and a cooling source by using a thermally conductive substrate mounted near a water channel, allowing water to flow through and act as a cooling medium, with optional insulation layers to manage heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If high-intensity LEDs are used for pool illumination, then illumination intensity is improved, but temperature increases causing rapid deterioration of the lighting assembly
Solution Approach 1:
A thermally conductive substrate is introduced as an intermediary between the LED and the water channel. This substrate conducts heat away from the LED to the water channel, enabling effective heat dissipation while maintaining the high-intensity LED illumination. The substrate acts as a thermal bridge without compromising the LED's light output.
Solution Approach 2:
The patent utilizes water flow through the water channel as a cooling medium to dissipate heat from the LED assembly. The water channel is positioned to receive heat-conducted thermal energy from the LED via the substrate, and flowing water removes this heat, preventing temperature buildup and extending assembly lifespan.
2Illumination intensity
If a reflector or reflector plate is added to increase lighting focus and intensity, then illumination intensity is improved, but heat in the illumination system increases
Solution Approach 1:
The thermally conductive substrate serves as a mediator that decouples the optical function (reflector) from the thermal management function. It conducts heat away from both the LED and the reflector assembly to the water channel, allowing the reflector to maintain its light-focusing function while the substrate handles the heat dissipation that would otherwise accumulate in the reflector structure.
3Reliability
If cooling structure is added to dissipate heat from LED, then temperature is reduced improving reliability, but device complexity increases
Solution Approach 1:
The water channel is designed to serve multiple functions: it provides structural support for the LED assembly, acts as a thermal management system through water flow, and maintains the pool's aesthetic appearance. This multi-functionality reduces the need for separate cooling components, thereby limiting the increase in device complexity while improving reliability through effective heat dissipation.
Solution Approach 2:
The cooling function is merged with the existing water channel structure rather than being implemented as a separate system. The water channel that already exists in the pool is integrated into the LED assembly structure, combining support and cooling functions into a single unified component, thus minimizing additional complexity.
4Duration of action of stationary object
If LED assembly is positioned closer to water channel for cooling, then temperature is reduced improving lifespan, but manufacturing precision requirements increase
Solution Approach 1:
The thermally conductive substrate is designed with localized thermal pathways concentrated at the LED mounting area, where heat dissipation is most critical. This localized approach allows precise thermal management at the heat source without requiring high precision throughout the entire assembly. The substrate's thermal conductivity is optimized specifically at the LED interface, reducing the overall manufacturing precision burden while maintaining effective cooling.
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
Effectively dissipates heat from high-intensity LEDs, prolonging the assembly's lifespan and reducing maintenance requirements while maintaining the aesthetic and functional integrity of pool lighting systems.
Implementation Method 1
the water channel has a hollow wall defining a hollow space in which the first substrate is located, the hollow wall is adapted for allowing water to flow therethrough, and thereby water flowing through the water channel cools the LED assembly
Implementation Method 2
water flowing through the water channel cools the LED assembly
Data Source
Figure 1
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AI summary
Disclosed is a pool light assembly having structure for providing cooling to pools having illumination elements. The light assembly includes a sub-assembly (90) having one or more light elements, preferably high output LED elements (92). Additionally, the light assembly has a water channel. The LED sub-assembly (90) is located proximate the water channel. In the several embodiments shown, the structure of a typical light assembly has been modified such that the distance between the LED sub-assembly (90) and the water channel is minimized.