Decorative Light Bulb Snap-Fit Sealing for Low-Cost Assembly
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Solution Overview
Problem
Existing decorative light bulbs have complex assembly methods and high production costs due to cumbersome sealing structures, making them inefficient and costly to produce.
Innovation Solution
A simplified decorative light bulb design featuring a lampshade with an integrated mounting seat, a connective structure with snap-fit components, and a waterproof transparent seat, along with a production process that uses injection molding and interference fits to reduce assembly complexity and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple sealing structures are added between the light bulb and connective structure, then waterproof sealing is improved, but device complexity and production cost increase
Solution Approach 1:
The patent integrates the sealing function directly into the connective structure by forming a sealing ring groove within the connecting component's through hole, and positioning a sealing ring at the bottom of the groove. This merges the connection and sealing functions into a single integrated structure, eliminating the need for separate sealing components while maintaining waterproof performance.
Solution Approach 2:
The patent introduces a sealing ring as an intermediary element that fits into the sealing ring groove of the connective structure. This sealing ring acts as a mediator between the light bulb and the connective structure, providing effective waterproof sealing without requiring complex multi-layer sealing arrangements.
2Reliability
If multiple sealing structures are added between the light bulb and connective structure, then waterproof sealing is improved, but production cost increases
Solution Approach 1:
The sealing ring groove is integrated into the connective structure's through hole, allowing the sealing function to be achieved without adding separate sealing components. This integration reduces the number of parts and assembly steps, thereby lowering production cost while maintaining waterproof sealing effectiveness.
Solution Approach 2:
The patent uses a simple, inexpensive sealing ring made of elastomeric material that can be easily replaced if needed. This disposable-like approach with a simple sealing ring is more cost-effective than implementing complex, expensive multi-layer sealing structures.
3Reliability
If complex sealing structures are used, then waterproof sealing is improved, but assembly method becomes cumbersome
Solution Approach 1:
The connective structure integrates both connection and sealing functions in one component. The sealing ring is positioned at the bottom of the sealing ring groove within the connective structure, allowing both functions to be achieved through a single assembly operation rather than multiple separate sealing steps.
Solution Approach 2:
The snap-fit connection mechanism automatically positions and secures the light bulb within the connective structure, with the sealing ring naturally engaging in the sealing ring groove during assembly. This self-positioning feature eliminates the need for complex alignment procedures or additional sealing operations.
Data Source
AI summary
An improved decorative light bulb, including a lampshade, a lamp holder, a light source component, a power supply component and a connecting structure; the lampshade includes a cover body and a mounting seat; the connective structure comprises a lampshade base, a lamp holder base and a connecting component; the lampshade base includes a first end and a second end; the mounting seat is detachably inserted in the first end, the lamp holder base is detachably inserted in the lamp holder, and the connecting component is detachably inserted in the second end; glue is filled in an accommodating space.