LED Filament Bulb Heat Dissipation via Glass Support
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Solution Overview
Problem
Existing LED technologies face challenges in heat dissipation, appearance, and robustness when applied to filament light bulb applications, making it difficult to replace traditional filament bulbs effectively.
Innovation Solution
A light bulb apparatus featuring a head cup with a driver circuit, glass bottom support for heat dissipation, and multiple LED light strips with adjustable color temperature and luminance, integrated with a central support and bracket for structural integrity and efficient heat management, using materials like glass and metal to enhance appearance and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If LED technology is applied to replace filament bulbs, then luminous efficacy is improved, but heat dissipation becomes a problem
Solution Approach 1:
The bulb is divided into distinct functional zones: a head cup containing the driver circuit, a bottom support for structural stability and additional heat dissipation, and a bulb shell for light emission. This segmentation allows each part to address specific challenges, with the bottom support and head cup working together to manage heat from the LED modules.
Solution Approach 2:
A driver circuit is introduced as an intermediary component between the power source and LED modules. This driver circuit not only provides proper driving current to the LEDs but also serves as a heat dissipation pathway, converting excess electrical energy to heat that can be managed through the head cup structure.
2Adaptability or versatility
If LED modules with different color temperatures are used, then color temperature adjustability is improved, but device complexity increases
Solution Approach 1:
Multiple LED modules with different color temperatures (e.g., warm white, neutral white, cool white) are merged into a single bulb apparatus. The driver circuit combines control signals to simultaneously or selectively activate different LED modules, achieving color temperature adjustment without requiring multiple separate bulbs or complex mechanical switching mechanisms.
3Temperature
If glass material is used for bottom support, then appearance and heat dissipation are improved, but manufacturing complexity increases
Solution Approach 1:
The bottom support is constructed as a composite structure combining glass material (for appearance and heat dissipation) with metal components (for structural strength and electrical connectivity). This composite approach allows each material to contribute its superior properties while mitigating individual weaknesses, with the glass providing aesthetic appeal and thermal management and the metal providing mechanical robustness.
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 a cost-effective and aesthetically pleasing LED light bulb that addresses heat dissipation and structural robustness issues, offering adjustable color temperature and luminance, while maintaining the nostalgic appearance of filament bulbs.
Implementation Method 1
The multiple light strips are mounted with LED modules
Implementation Method 2
Parts of the bottom support are made of glass material. To provide better heat dissipation, heat dissipation air may be introduced into the bulb apparatus
Implementation Method 3
heat dissipation air may be introduced into the bulb apparatus
Data Source
AI summary
A light bulb apparatus includes a head cup, a bottom support, multiple light strips and a bulb shell. The head cup is connected to an external power source. The bottom support is extended from the head cup. Each light strip has a top end and a bottom end. The bottom ends of the light strips are connected to the bottom support. The top ends of the light strips form a top polygonal shape and the bottom ends of the light strips form a bottom polygonal shape. The bottom polygonal shape has a bigger area size than the top polygonal shape. Each light strip has a skewed angle with respect to a middle axis perpendicular to the bottom shape.