LED Pathlight Visor Heat Dissipation and Directional Design
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Solution Overview
Problem
Existing pathlights face challenges in efficiently dissipating heat from light sources while allowing for directional orientation, which affects their performance and longevity.
Innovation Solution
The pathlight design incorporates light emitting diodes (LEDs) with a visor that directs light and dissipates heat, using a configuration of vertical and horizontal support members and a removable visor made of heat-dissipating materials like copper or brass, allowing for rotational positioning of the LED module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If traditional light sources are used in pathlights, then illumination is provided, but heat dissipation becomes difficult
Solution Approach 1:
The patent converts the harmful heat generated by the LED module into a beneficial feature by using the heat itself for dissipation through the visor. The visor is specifically designed with heat-dissipating materials (copper or brass) and geometric features that utilize the heat radiation from the LED to cool itself, transforming the harmful thermal energy into a useful cooling mechanism.
Solution Approach 2:
The visor serves multiple functions simultaneously: it directs light in desired directions, dissipates heat from the LED module, and provides structural support. This multi-functionality resolves the contradiction by integrating heat dissipation into an existing component rather than adding separate cooling systems.
2Adaptability or versatility
If the pathlight is designed with fixed orientation, then structural simplicity is maintained, but directional orientation flexibility is limited
Solution Approach 1:
The patent introduces rotational capability to the LED module through a rotatable mounting mechanism that allows the module to be positioned at different angles while maintaining electrical connectivity. This dynamic feature enables directional orientation flexibility without requiring multiple fixed-pathlight configurations.
Solution Approach 2:
The pathlight is divided into separable components: the LED module, the visor, and the mounting structure. This segmentation allows the LED module to be independently rotated and positioned, providing directional flexibility while keeping each component structurally simple and easy to assemble.
3Temperature
If heat-dissipating materials like copper or brass are used for the visor, then heat dissipation is improved, but manufacturing cost increases
Solution Approach 1:
The patent applies heat-dissipating materials (copper or brass) specifically to the visor where heat dissipation is most critical, rather than using these expensive materials throughout the entire pathlight structure. This localized application provides effective heat management while controlling manufacturing costs.
Solution Approach 2:
The patent offers alternative material specifications for the visor, allowing selection between copper, brass, or other heat-dissipating materials based on specific application requirements and budget constraints. This flexibility in material parameter selection resolves the contradiction between heat dissipation performance and manufacturing cost.
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 effectively dissipates heat and enables directional orientation of the pathlight, improving its performance and longevity by maintaining efficient heat management and flexibility in installation.
Implementation Method 1
a visor which both directs the light and dissipates heat generated by the LEDs
Implementation Method 2
the visor 3 is configured to dissipate heat generated by the LED module
Data Source
AI summary
Pathlights for illuminating paths, walkways, and other landscape and architectural features advantageously incorporate light emitting diodes (“LEDs”) as an illumination source, and a visor which both directs the light and dissipates heat generated by the LEDs.