Waterproof Camera Dual-Cavity IP67 Isolation
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Solution Overview
Problem
Existing waterproof camera designs with a pan-tilt platform often fail to completely prevent water vapor ingress due to imperfect sealing, leading to issues like lens hazing and PCB corrosion, which compromises the operational integrity of outdoor monitor devices.
Innovation Solution
A dual-cavity design is implemented, where the cylinder body forms a first cavity with a protection level of IP67 to isolate the front end assembly, and the pan-tilt platform forms a second cavity with a protection level of IP66, ensuring effective waterproofing by isolating the two cavities from each other.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-cavity waterproof design is used with IP66 protection level, then the transmission mechanism and front end assembly are housed in one cavity, but water vapor may still enter the cavity due to imperfect bearing sealing, causing lens hazing and PCB corrosion
Solution Approach 1:
The single cavity is divided into two separate cavities: a first cavity for the front end assembly and a second cavity for the transmission mechanism. This segmentation allows each cavity to have independent sealing, so that imperfect sealing in one cavity does not compromise the other, thereby improving overall waterproof reliability while maintaining structural simplicity
Solution Approach 2:
Different protection levels are applied to different cavities based on their specific requirements. The first cavity (front end assembly) achieves IP67 protection level with enhanced sealing, while the second cavity (transmission mechanism) achieves IP66 protection level, optimizing waterproof performance locally where needed most
2Reliability
If the protection level of the cylinder body is increased to IP67, then water vapor isolation is improved, but the structural complexity increases due to separate cavity design
Solution Approach 1:
The camera is divided into functionally independent first and second cavities with separate sealing systems. The first cavity can achieve IP67 protection level for the front end assembly while the second cavity handles the transmission mechanism, allowing high protection levels without excessive overall complexity
Solution Approach 2:
The pan-tilt platform with the second cavity is integrated into the overall camera structure in a nested manner, where the first cavity (cylinder body) and second cavity (pan-tilt platform) are arranged concentrically or interlocked, achieving IP67 protection while maintaining compact structure
Data Source
AI summary
A waterproof camera and a supporting structure thereof are provided. The supporting structure includes a cylinder body and a pan-tilt platform. The cylinder body is configured to form a first cavity for holding a front end assembly. The pan-tilt platform is provided outside of the cylinder body, and includes a second cavity isolated from the first cavity. The first cavity is isolated from the second cavity. A protection level of the cylinder body may be up to IP67 to better isolate water vapor, while a protection level of the pan-tilt platform may be up to IP66 to meet a waterproof demand of a transmission mechanism.