LED Lighting Apparatus with Ribs for Heat Dissipation
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Solution Overview
Problem
Existing lighting apparatus, particularly LED spotlights, face issues with heat dissipation leading to reduced lifespan, weight increase due to metal bodies, and limited versatility in lighting modes, requiring multiple spotlights for different applications.
Innovation Solution
A lighting apparatus with a support body featuring a plastic cap element and ribs for enhanced heat dissipation, along with multiple lighting devices that can be easily switched between diffused and focused lighting modes using adjustable attachment devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the support body is made of metal material to ensure heat dissipation, then heat dissipation is improved, but weight increases and manageability deteriorates
Solution Approach 1:
The patent changes the material parameter from metal to plastic, and modifies the geometric parameter by adding ribs to increase surface area. This combination allows the plastic body to achieve heat dissipation performance comparable to metal while maintaining the weight advantages of plastic material.
Solution Approach 2:
The patent adds a dimensional feature by incorporating ribs that extend from the support body, increasing the effective heat dissipation surface area without proportionally increasing volume or weight. This dimensional enhancement allows efficient heat transfer while maintaining manageable weight.
2Temperature
If the support body is made larger to increase heat dissipation surface area, then heat dissipation is improved, but weight and device complexity increase
Solution Approach 1:
The patent segments the support body surface by adding ribs that create multiple heat dissipation surfaces. This segmentation increases the effective surface area for heat transfer without requiring a proportional increase in the overall body volume, thereby improving heat dissipation efficiency without excessive size increase.
3Illumination intensity
If the spotlight is designed for a specific lighting mode, then lighting performance is optimized, but versatility deteriorates
Solution Approach 1:
The patent implements a dynamic system where the reflector can be rotated between different positions. This dynamic adjustment allows the same spotlight to switch between focused lighting mode (reflector in first position) and diffuse lighting mode (reflector in second position), providing versatility while maintaining optimized performance for each mode.
Solution Approach 2:
The patent designs a universal spotlight that can perform multiple lighting functions by incorporating a rotatable reflector mechanism. The single device can switch between focused and diffuse lighting modes, eliminating the need for separate spotlights for different lighting requirements and achieving multi-functionality.
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
Enables efficient heat dissipation, reduces weight, and allows for easy switching between lighting modes, improving manageability and convenience while maintaining effective illuminance.
Implementation Method 1
the cap element (8) has an outer surface (9a) with ribs (15, 16) arranged to facilitate heat dissipation
Implementation Method 2
the cap element (8) has an outer surface (9a) with ribs (15, 16) arranged to facilitate heat dissipation
Data Source
Figure 1~2
Figure 3
AI summary
The lighting apparatus (1) comprises at least a support body (2) and at least a lighting device (3a, 3b) associated with the support body (2), and comprises a plurality of said lighting devices (3a, 3b) of which: - at least a first lighting device (3a) comprising at least a first emitting element (4a) able to emit light radiation and at least a first lighting appliance (5a) associated with the first emitting element (4a) and having a first inner surface (6a) substantially polygonal able to diffuse the light radiation; and - at least a second lighting device (3b) comprising at least a second emitting element (4b) able to emit light radiation and at least a second lighting appliance (5b) associated with the second emitting element (4b) and having a second inner surface (6b) substantially smooth able to direct the light radiation.