Waterproof Electrical Socket With Removable Inner Housing
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Solution Overview
Problem
Electrical installation boxes that are waterproofed using casting materials often render the internal devices inaccessible for repair or replacement, preventing maintenance and maintenance-related issues.
Innovation Solution
A double-walled housing configuration with a removable inner housing cover, where the transition area between the inner and outer housings is encapsulated with a potting material, allowing for easy access while maintaining watertightness, and using a silicone-like casting resin that can be cut for repair access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the interior of the electrical junction box is encapsulated with potting compound to achieve waterproof protection, then the protection class IP 68 is achieved, but the electrical or electronic equipment becomes inaccessible for repair or replacement
Solution Approach 1:
The housing is divided into an outer housing and an inner housing that can be separated. The inner housing contains the electrical or electronic equipment and can be removed from the outer housing, allowing access to the equipment for repair or replacement while maintaining the waterproof seal through the removable inner housing cover.
Solution Approach 2:
The inner housing cover is designed to be removable rather than fixed, transforming the enclosure from a static sealed structure to a dynamic one that can be opened for maintenance and closed for protection. This allows the system to switch between protective and accessible states.
2Ease of repair
If the electrical or electronic equipment is made accessible for repair after potting, then ease of repair is improved, but the waterproof seal and protection class IP 68 are compromised
Solution Approach 1:
By segmenting the housing into outer and inner housings with a removable cover, the design allows selective access to equipment without compromising the overall waterproof seal. The inner housing can be removed for repair and reinstalled to maintain IP 68 protection.
Solution Approach 2:
The inner housing cover can be removed for maintenance operations and then reinstalled to restore the waterproof seal. This allows temporary disclosure of the interior for repair purposes followed by recovery of the protective enclosure.
3Ease of repair
If a removable inner housing cover is provided for access to equipment, then ease of repair is improved, but the structural complexity of the housing increases
Solution Approach 1:
The housing is segmented into outer and inner housings with a removable cover, adding structural elements for access. However, this segmentation allows modular assembly and disassembly, simplifying maintenance operations despite the increased number of components.
Data Source
Figure 1
AI summary
The electricity installation box has an external housing (1) in which an internal housing (2) is provided. The electrical or electronic unit (8) is arranged in the internal housing. The internal housing is locked by a removable internal housing cover (9). The transition zone of the internal housing cover is sealed with a grouting material on the internal housing.