Pre-Assembled Wall Plug Assembly for Factory Quality Checks
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Solution Overview
Problem
Electrical plugs requiring assembly on different sides of a wall by the customer lack a final quality check, making it difficult to determine if defects originate from manufacturing or customer assembly.
Innovation Solution
A pre-assembled plug assembly comprising a first housing part, a second housing part, and a base plate that fastens to the wall, allowing the manufacturer to assemble the plug before delivery, ensuring a quality check and reducing customer assembly work.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the plug is assembled by the customer on-site, then the installation flexibility is improved, but the quality control and defect identification capability deteriorate
Solution Approach 1:
The plug assembly is pre-assembled by the manufacturer before delivery, including fastening the first housing part and second housing part on different sides of the base plate. This preliminary assembly action enables the manufacturer to perform final quality checks and identify defects before the product leaves the factory, while the customer only needs to perform the simple task of fastening the base plate to the wall, thus maintaining installation flexibility.
2Device complexity
If the plug is assembled by the customer, then the manufacturing complexity is reduced, but the assembly error rate increases
Solution Approach 1:
The manufacturer performs the complex assembly of fastening the first housing part and second housing part on different sides of the base plate during the manufacturing process. This allows professional quality control to ensure correct assembly, eliminating assembly errors that would occur if customers performed this complex task themselves.
3Reliability
If the plug is pre-assembled by the manufacturer, then the quality check capability is improved, but the assembly time increases
Solution Approach 1:
The plug assembly is pre-assembled during the manufacturing process when proper equipment and time are available, allowing thorough quality checks. The customer then only needs to perform the single remaining step of fastening the base plate to the wall, which significantly reduces the customer's assembly time despite the additional manufacturing time required.
Data Source
AI summary
A plug assembly for an electrical plug extending through a wall includes a first housing part having a contact chamber receiving an electrical contact, a second housing part having a receptacle in which the first housing part is received, and a base plate fastening the plug assembly to the wall. The plug assembly is pre-assembled by fastening the first housing part and the second housing part on different sides of the base plate.