Electrical Pass-Through Housing With Anti-Rotation Cable Locking
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Solution Overview
Problem
Existing electrical pass-through housings do not provide a secure and efficient mechanism for retaining and protecting electrical cables as they pass through barriers, such as walls, while allowing for cable movement restriction and electrical connectivity.
Innovation Solution
The electrical pass-through housing features a cap assembly with a cap lock and non-circular cable openings, along with a cap catch mechanism, to securely retain cables and prevent rotation, combined with a contact assembly for electrical connection and a housing design that accommodates cable supports and seals to prevent moisture ingress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional circular cable opening is used, then cable installation is easy, but cable rotation cannot be prevented
Solution Approach 1:
The patent employs a non-circular cable opening with an asymmetric cross-sectional shape that matches the asymmetric shape of the cable. This asymmetric geometry prevents the cable from rotating within the opening while still allowing for straightforward installation by aligning the corresponding asymmetric features, thus resolving the contradiction between ease of installation and prevention of rotation.
2Stability of the object's composition
If a secure cable retention mechanism is implemented, then cable stability is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple functions into the cap assembly: it serves as both a retention mechanism (through the cap catch and cap lock engagement) and as a protective cover. The cap assembly integrates the retention feature with the protective function, providing secure cable retention while avoiding the need for separate complex retention devices, thus reducing overall device complexity.
Solution Approach 2:
The housing is divided into modular components including the cap assembly, cap catch, and cap lock. This segmentation allows for simplified manufacturing and assembly of individual parts while achieving secure cable retention through their coordinated engagement, reducing the complexity of any single component.
3Stability of the object's composition
If a non-circular cable opening is used, then cable rotation is prevented, but manufacturing precision requirements increase
Solution Approach 1:
The non-circular asymmetric cable opening geometry is designed with features that are straightforward to manufacture using conventional processes. The asymmetric shape provides rotational prevention while maintaining manufacturability through simple geometric forms that do not require complex precision machining or molding operations.
Data Source
AI summary
A electrical pass-through includes a housing and a cap assembly. The housing has a cap lock and a cable opening that extends through the housing and that defines a cable axis. The cable opening has a non-circular cross-sectional shape when viewed perpendicularly relative to the cable axis. The cap assembly has a cap base and a cap catch. A cap opening extends through the cap base and the cable axis extends through the cap opening. The cap assembly movable relative to the housing to a locked position wherein the cap catch engages the cap lock to retain the cap assembly in the locked position relative to the housing.