Waterproof Lamp Head Double-Sided Extrusion Sealing
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Solution Overview
Problem
Existing waterproof lamp head structures suffer from poor waterproof performance due to the degradation of sealing rings exposed to sunlight and rain, leading to moisture ingress and potential short circuits.
Innovation Solution
A waterproof lamp head structure featuring a lampshade, lamp cap, and lamp holder with a double-sided extrusion sealing mechanism, where the connecting portion of the lampshade and the groove inside the lamp cap form a tight and waterproof connection, enhanced by a threaded connection and elastic sealing material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealing ring is used between the lamp body and lamp holder, then waterproofing is achieved, but the sealing ring degrades under sunlight and rain exposure, reducing waterproof performance over time
Solution Approach 1:
The patent removes the traditional sealing ring component entirely and replaces it with a groove structure integrated into the lamp holder. This extraction eliminates the degradation issue of separate sealing rings while maintaining waterproof functionality through the groove design that allows direct contact and sealing between the lamp body and lamp holder surfaces.
Solution Approach 2:
The patent merges the sealing function into the structural design of the lamp holder by creating a groove that directly interfaces with the lamp body. This integration combines the structural support and sealing functions into a single unified design, eliminating the need for separate degradable sealing components.
2Reliability
If a complex waterproof structure is implemented, then waterproof performance improves, but the assembly and disassembly become difficult
Solution Approach 1:
The patent segments the lamp head into modular components (lamp body and lamp holder) that connect through a simple groove interface. This segmentation allows each component to be independently manufactured and easily assembled or disassembled by aligning and inserting the lamp body into the groove, maintaining operational simplicity while achieving waterproof sealing.
Data Source
AI summary
Disclosed is a waterproof lamp head structure, including a lampshade and a lamp cap, where a connecting portion is arranged at a bottom of the lampshade, a cavity is arranged inside the lamp cap, and the connecting portion is detachably connected to the cavity; a lamp holder is arranged between the lampshade and the lamp cap, the lamp holder includes a fixing base, a fixing post, and plugs, and the fixing base includes first and second end faces; a bottom surface of the connecting portion is tightly abutted against the first end face; a connecting seat is arranged inside the lamp cap, grooves corresponding to the plugs are formed inside the connecting seat, and a top surface of the connecting seat is abutted against the second end face; the lamp holder is provided with through holes, and the through holes are communicated with interiors of the lampshade and the grooves.