LED Light Bulb Segmented Stem and Plastic Housing
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Solution Overview
Problem
Conventional LED light bulbs have complex and costly manufacturing processes due to embedded rigid conductive wires and are made from vulnerable glass materials, posing safety risks during production.
Innovation Solution
An LED light bulb design featuring a transparent plastic lampshade, stem, and seat with integrated conductive wires and a power supply board, allowing for simplified assembly and reduced costs, enhanced safety through plastic materials, and improved waterproofing with a sealant and threaded base connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If rigid conductive wires are embedded during sintering to support LED filaments, then the LED light bulb can be manufactured with proper structural support, but the manufacturing process becomes complicated and costs increase
Solution Approach 1:
The patent divides the stem into multiple segments (first stem segment, second stem segment, third stem segment) that can be assembled separately. The rigid conductive wires are embedded only in specific segments where needed, rather than requiring complete embedding throughout the entire stem structure, thereby simplifying the manufacturing process while maintaining structural support.
Solution Approach 2:
The rigid conductive wires are pre-embedded in specific stem segments before final assembly, allowing for easier integration compared to embedding after complete stem formation. This preliminary action reduces manufacturing complexity by preparing components in advance.
2Reliability
If glass is used for lampshades and stems, then the material provides good transparency and heat resistance, but the material becomes vulnerable and requires open-fire heating during manufacturing which creates safety risks
Solution Approach 1:
The patent changes the material parameter from glass to plastic for the lampshade and stem components. This material substitution eliminates the need for open-fire heating during manufacturing, thereby removing the safety risks associated with glass processing while maintaining the necessary durability and functionality through appropriate plastic material selection.
3Illumination intensity
If translucent but not transparent lampshade is used, then the LED light bulb achieves proper light diffusion, but the outer appearance differs significantly from conventional light bulbs
Solution Approach 1:
The patent applies different transparency qualities to different parts of the lampshade. The lampshade includes both transparent portions (to maintain appearance similarity with conventional bulbs) and translucent portions (to provide proper light diffusion). This local differentiation of material properties allows simultaneous achievement of both light diffusion and appearance requirements.
Data Source
AI summary
The present invention provides an LED light bulb comprising a transparent lampshade, a base, a transparent stem, a transparent seat, a power supply board fixedly mounted on the transparent seat, a first rigid conductive wire passing through the transparent stem, second rigid conductive wires passing through the transparent stem and connecting to the power supply board, and LED filaments fixedly connected to the first rigid conductive wire and the second rigid conductive wires. The second rigid conductive wires are two in number. The LED filaments are two or more in number. Each of the LED filaments are evenly distributed around the transparent stem, and each of the second rigid conductive wires is connected to at least one of the LED filaments.