Plastic Gang Box With Metal Threaded Inserts for Durable Connections
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Solution Overview
Problem
Traditional plastic gang boxes lack durability in providing threaded connections for electrical connections, leading to potential damage and insecurity.
Innovation Solution
A plastic gang box with metal threaded nut attachments, where metal insert structures with interior screw threads are used to create a more reliable and durable connection within a plastic gang box structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plastic threaded connections are used in gang boxes, then the device complexity and manufacturing cost are reduced, but the strength and reliability of the threaded connections deteriorate
Solution Approach 1:
The patent combines plastic material for the gang box body with metal material for the threaded insert, creating a composite structure that leverages the corrosion resistance and electrical properties of plastic while utilizing the strength and durability of metal for threaded connections. This resolves the contradiction by achieving high reliability threaded connections without requiring the entire structure to be metal, thus maintaining reasonable complexity.
Solution Approach 2:
The threaded connection component is segmented from the main plastic gang box body as a separate metal insert. This allows the threaded portion to be independently optimized for strength and durability while the main body retains its plastic properties. The segmented design enables selective material application, improving threaded connection reliability without unnecessarily complicating the overall device structure.
2Strength
If metal threaded inserts are added to plastic gang boxes, then the strength of threaded connections is improved, but the manufacturing process complexity increases
Solution Approach 1:
The metal threaded insert is pre-manufactured as a separate component with its threaded structure already formed, then inserted into the plastic gang box body during assembly. This preliminary action allows the threaded insert to be optimized for strength independently, while the main manufacturing process of the plastic body remains simple and unaffected, thus improving threaded connection strength without significantly complicating the overall manufacturing process.
3Reliability
If plastic material is used for the gang box body, then the corrosion resistance and electrical properties are improved, but the durability of threaded connections deteriorates
Solution Approach 1:
The patent applies different material qualities to different parts of the gang box: plastic material is used for the main body where corrosion resistance and electrical properties are critical, while metal material is used specifically for the threaded insert where mechanical strength and durability are paramount. This local differentiation of material properties resolves the contradiction by optimizing each region for its specific functional requirements.
Data Source
AI summary
The plastic gang box with metal threaded nut attachment is a containment structure. The plastic gang box with metal threaded nut attachment forms a protection space. The protection space contains one or more electrical connections. The plastic gang box with metal threaded nut attachment comprises a gang box, and an insert structure. The gang box is formed from plastic. The insert structure inserts into the gang box. The insert structure is a metal device that is formed with an interior screw thread. The insert structure provides a more durable threaded connection than is available with a traditional plastic gang box.