Pyramidal LED PCB Structure for Heat Dissipation
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Solution Overview
Problem
Conventional LED light bulbs face challenges in maximizing light and heat emission due to obstruction by printed circuit boards, which limits their efficiency and lifespan.
Innovation Solution
The use of a pyramidal structure for multiple printed circuit boards with LEDs, where each board's peripheral edges are designed not to block light and heat, ensuring maximum emission and efficient heat dissipation through a transparent housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple printed circuit boards are stacked in a conventional structure, then the LED light bulb can accommodate more LEDs, but the peripheral edges of printed circuit boards block light and heat emission
Solution Approach 1:
The patent transitions from a conventional planar arrangement of printed circuit boards to a pyramidal three-dimensional structure. This dimensional change allows the boards to be stacked at angles where upper boards do not horizontally overlap lower boards, eliminating the blocking effect while maintaining high LED density. The pyramidal configuration uses vertical space efficiently, accommodating more LEDs without compromising light emission from any board.
2Quantity of substance
If multiple printed circuit boards are stacked in a conventional structure, then the LED light bulb can accommodate more LEDs, but the structure blocks heat dissipation
Solution Approach 1:
The pyramidal structure creates vertical separation between layers of printed circuit boards, with each board positioned at a different height and angle. This three-dimensional arrangement prevents upper boards from blocking the upward and outward heat dissipation paths of lower boards. Heat can escape through the open spaces created by the pyramidal configuration, maintaining effective thermal management even with increased LED density.
3Quantity of substance
If printed circuit boards are arranged to maximize LED density, then more LEDs can be housed, but light distribution is compromised
Solution Approach 1:
The pyramidal arrangement distributes LEDs across multiple vertical levels and angular positions, creating a three-dimensional light distribution pattern. Light from each board emits in multiple directions without being blocked by other boards, resulting in uniform and comprehensive illumination. This spatial distribution enhances light coverage compared to conventional planar arrangements while accommodating more LEDs.
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 configuration enhances light distribution and facilitates safe and efficient heat dissipation, prolonging the lifespan and performance of the LED light bulb.
Implementation Method 1
facilitates safe and efficient heat dissipation
Implementation Method 2
a transparent housing that encloses the at least two printed circuit boards
Data Source
AI summary
Disclosed is an LED light bulb having safe and efficient heat dissipation, while also providing maximum light distribution by providing multiple printed circuit boards arranged in a pyramidal structure, having multiple LEDs. The multiple printed circuit boards are connected by conductor wires contained within a transparent housing, so that the multiple printed circuit boards sit on a base of the LED light bulb. A bottom printed circuit board may also be employed if additional circuitry is desired.