Waterproof Lamp Mounting Member Chamber Segmentation
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Solution Overview
Problem
Conventional waterproof lighting devices often rely on plastic injection molding for sealing, which, while effective, may not provide a robust enough barrier against liquids, and there is a need for an improved waterproofing mechanism that does not require this process.
Innovation Solution
A waterproof lamp design featuring a lamp base with multiple chambers and mounting openings, where the mounting member is positioned higher than the openings, preventing liquid ingress and allowing it to flow out, and a cap with limiting portions that threadedly connects to the base, ensuring effective sealing without the need for plastic injection molding for cable sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If plastic injection molding is used for sealing between lamp holder and cables, then waterproof performance is achieved, but manufacturing complexity and cost increase
Solution Approach 1:
The lamp holder is divided into multiple chambers (first chamber and second chamber) separated by a mounting member. This segmentation allows liquid to be contained in the first chamber while keeping the second chamber dry, achieving waterproof protection without requiring complex injection molding processes. The cables pass through the mounting member to connect components across the liquid barrier.
Solution Approach 2:
The mounting member acts as an intermediary structure between the first and second chambers. It includes mounting holes for cable passage and positioning features for securing components. This intermediary structure provides a simple mechanical solution for waterproofing without requiring plastic injection molding, reducing manufacturing complexity while maintaining reliability.
2Reliability
If mounting member is positioned higher than mounting openings, then liquid ingress is prevented, but device height increases
Solution Approach 1:
Instead of increasing height vertically, the design uses the horizontal positioning of the mounting member relative to the mounting openings. The mounting member is positioned higher than the openings in the vertical dimension, but this is achieved through the horizontal arrangement of chambers and components. The first chamber collects liquid while the mounting member's elevated position prevents liquid from reaching the second chamber, solving the waterproofing need without excessive overall height increase.
Data Source
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AI summary
A waterproof lamp includes a lamp base (10) defining a first chamber (11) and including a mounting member (12) received in the first chamber (11), and a cap (20) threadedly connected to the lamp base (10). The lamp base defines a first mounting opening (13) and a second mounting opening (14) that both communicate with the first chamber (11). The mounting member (12) defines a second chamber (122) and includes a first mounting post (121) received in the second chamber (122).