Modular Conduit Junction Box With Twist-Lock Socket Assembly
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Solution Overview
Problem
Traditional electrical conduit junction boxes require on-site threading of conduit tubing, which is time-consuming and requires specialized equipment, skill, and training, limiting efficiency and accessibility for unskilled personnel.
Innovation Solution
A modular electrical conduit junction box design featuring a socket that can be easily assembled and secured to the body through a simple 90° rotation, eliminating the need for threading and allowing quick connection of conduit lengths without tools, using a socket attachment formation that engages an edge attachment formation to secure the socket to the body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional one-piece cast junction boxes with integral sockets are used, then structural strength and integrity are improved, but manufacturing complexity and on-site installation time increase due to required threading operations
Solution Approach 1:
The junction box is divided into separate components: a body portion and a socket assembly that can be assembled on-site. The socket assembly includes a socket body and a separate cover, allowing modular installation without requiring threading of integral sockets. This segmentation enables pre-manufactured components to be quickly assembled in the field, reducing installation time while maintaining structural integrity through proper engagement features.
2Reliability
If traditional casting and galvanizing processes are used, then durability and corrosion resistance are improved, but manufacturing complexity and specialized equipment requirements increase
Solution Approach 1:
The junction box components are manufactured separately using processes suitable for each part, allowing optimization of manufacturing methods. The body and socket assemblies can be produced using conventional fabrication techniques rather than requiring complex integral casting and galvanizing, reducing manufacturing complexity while maintaining durability through appropriate material selection and assembly design.
3Reliability
If on-site threading of conduit tubing is required, then secure connection of conduit is improved, but skill requirements and equipment needs increase
Solution Approach 1:
The socket assembly is designed as a separate, pre-manufactured component with integrated conduit receiving features. This eliminates the need for on-site threading of conduit into the junction box body, as the socket assembly provides the connection interface. Unskilled personnel can install the system by assembling the modular components without requiring threading equipment or specialized skills, while maintaining secure conduit connections through the designed engagement features.
4Stability of the object's composition
If integral sockets are cast into the junction box, then structural unity is improved, but adaptability and ease of modification decrease
Solution Approach 1:
The separable design allows the socket assembly to be independently configured and installed in different positions or orientations on the junction box body. This modularity provides adaptability for various installation scenarios and future modifications, while the secure engagement features maintain structural unity during service. The separate components can be repositioned or replaced more easily than integral cast sockets.
Data Source
AI summary
An electrical conduit junction box (10) includes a body (12). The body (12) defines an interior (18). The body (12) includes an edge attachment formation (24) which defines a socket receiving aperture (22). The box (10) further includes a socket (26). The socket (26) includes a socket attachment formation (28). The box (10) is movable from a disassembled condition in which the socket (26) is separate to the body (12) and an assembled condition in which the socket (26) is located in the socket receiving aperture (22) and the socket attachment formation (28) engages the edge attachment formation (24) to secure the socket (26) to the body (12).