Installation Box Coupling With Dual Rotational Axes and Seal Integrity
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Solution Overview
Problem
Current electrical installation boxes face challenges in coupling, including relative movements and sealing issues due to high friction coefficients, which complicate the assembly of multiple boxes and affect the integrity of the seal between them.
Innovation Solution
The design incorporates a coupling system with first and second rotational coupling axes, allowing for pivotal movements between installation boxes, which restricts relative translational and rotational movements, and includes a sealing mechanism that prevents sliding, thereby improving the sealing and ease of assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sealing material with high friction coefficient is used to seal the coupling between installation boxes, then sealing integrity is improved, but coupling difficulty increases due to difficulty in sliding movement
Solution Approach 1:
A coupling element is introduced as an intermediary component between the two installation boxes. This coupling element features a first portion that engages with the first installation box and a second portion that engages with the second installation box, enabling the boxes to be coupled together without direct sliding contact between their sealing surfaces. The coupling element acts as a mediator that transfers the coupling force while preserving the sealing integrity of both boxes.
Solution Approach 2:
The coupling system is segmented into distinct components: the first installation box, the coupling element, and the second installation box. The coupling element is further divided into a first portion and a second portion, each designed to engage with specific features of the respective installation boxes. This segmentation allows the sealing surfaces of the boxes to remain intact while the coupling element handles the mechanical connection and movement.
2Adaptability or versatility
If coupling systems are added to installation boxes to enable flexible assembly, then adaptability is improved, but device complexity increases due to additional coupling components
Solution Approach 1:
The coupling element is designed as a universal component that can be used to couple any two installation boxes of the same type, regardless of their specific configuration. The first and second portions of the coupling element are configured to engage with standard features found on multiple installation boxes, making the coupling element a multi-functional solution that simplifies the overall system while providing assembly flexibility.
Solution Approach 2:
The coupling system incorporates localized engagement features: a first engagement feature on the first installation box, a coupling element with differentiated first and second portions, and a second engagement feature on the second installation box. Each portion of the coupling element is specifically designed to interact with its corresponding engagement feature, creating a simple yet effective localized coupling mechanism that does not complicate the overall box design.
Data Source
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AI summary
The present invention relates to an installation box for an electrical installation for mounting in a hole of a wall, the installation box having a longitudinal axis, and comprising a bottom wall, a side wall, at least one coupling system for coupling the installation box to a corresponding coupling system of another installation box, the at least one coupling system comprising a first coupling device located at the bottom wall, and a second coupling device located on the side wall at a distance away from the bottom wall, wherein the first coupling device defines a first rotational coupling axis and a second rotational coupling axis, wherein the coupling system is configured to be coupled to said corresponding coupling system by coupling the first coupling device of the installation box to the corresponding first coupling device of the corresponding coupling system of the other installation box via a first rotation about the first rotational coupling axis, and subsequently coupling the second coupling device of the installation box to the corresponding second coupling device of the corresponding coupling system of the other installation box via a second rotation about the second rotational coupling axis.