Waterproof Outdoor Lamp Assembly With Snap-Fit Cord Sealing
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Solution Overview
Problem
Conventional outdoor decorative light strings face issues with waterproofing and assembly complexity due to on-site manual piercing of power cords and lack of sealing structures, leading to potential short circuits and cumbersome assembly processes.
Innovation Solution
A waterproof outdoor lamp design featuring a power cord with integrated lamp holder and inner plug, utilizing upper and lower rivets for electrical contact, and a snap-fit mechanism for alignment, ensuring seamless assembly and enhanced waterproofing through injection-molding and snap-fit connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If on-site manual piercing of power cord is used for electrical connections, then assembly flexibility is improved, but assembly complexity increases and waterproofing deteriorates
Solution Approach 1:
The lamp holder and inner plug are pre-assembled into an integrated unit before deployment. The power cord is pre-routed through the lamp holder, and connection terminals are pre-positioned, eliminating the need for on-site piercing operations while maintaining assembly flexibility.
Solution Approach 2:
The lamp holder and inner plug are merged into a single integrated assembly that functions as one unit. This combination simplifies the overall structure by reducing the number of separate components that need to be assembled on-site, thereby decreasing assembly complexity.
2Device complexity
If power cord passes through lamp cap without sealing structure, then assembly simplicity is improved, but waterproofing deteriorates
Solution Approach 1:
A waterproof sealing structure is integrated into the lamp holder assembly, utilizing flexible sealing elements and thin film barriers to prevent rainwater from entering along the power cord. This sealing mechanism maintains assembly simplicity while ensuring reliable waterproofing.
Solution Approach 2:
A sealing structure acts as an intermediary element between the power cord and the lamp holder. This intermediate component prevents direct contact between water and electrical components, thereby ensuring waterproofing without complicating the assembly process.
3Ease of manufacture
If modular assembly approach is used, then manufacturing convenience is improved, but on-site assembly time increases
Solution Approach 1:
The lamp holder and inner plug are pre-assembled into an integrated unit during manufacturing, with all necessary connections and positioning already established. This preliminary assembly eliminates time-consuming on-site assembly operations while maintaining the benefits of modular manufacturing.
Solution Approach 2:
The lighting system is segmented into modular components (lamp holder, inner plug, light bulbs) that can be manufactured separately and then quickly assembled on-site. The pre-integrated design of the lamp holder and inner plug reduces on-site assembly time while preserving manufacturing convenience.
Data Source
AI summary
A waterproof outdoor lamp easy to assemble and an assembling method thereof are provided. The waterproof outdoor lamp easy to assemble includes a power cord, a lamp holder, an inner plug, a light source, two upper rivets, two lower rivets, and a light bulb. The lamp holder includes a cord connecting portion and an inner plug accommodating portion, the cord connecting portion and the inner plug accommodating portion are integrally injection-molded on the power cord. An inner plug limiting protrusion is disposed on an upper end surface of the inner plug, an inner plug limiting groove is defined on the inner threads of the inner plug accommodating portion, the inner plug limiting protrusion is clamped in the inner plug limiting groove. Compared with conventional outdoor lamps, the waterproof outdoor lamp easy to assemble has better waterproof performance and is also simpler in structure.