Plug Connection Shield Support for Nonconductive Wall Bushing
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Solution Overview
Problem
Existing plug connections are ineffective for use on walls made of nonconductive materials like plastic, as they fail to provide a reliable electrical connection and shielding.
Innovation Solution
A plug connection assembly featuring a first plug connector with a shield support in the form of a shielding plate, which contacts a printed circuit board via a contact arm and stepped arms, forming a conductive connection and frictional unit, allowing for effective shielding and electrical contact through a wall bushing in nonconductive materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional plug connection is used on a wall made of nonconductive material, then the wall structure remains simple, but reliable electrical connection and shielding cannot be achieved
Solution Approach 1:
The plug connection is divided into two separate connectors (first plug connector and second plug connector) that mate together through the wall bushing. Each connector has dedicated contact elements and shielding components, allowing the electrical connection and shielding functions to be implemented reliably without requiring the wall material itself to be conductive.
Solution Approach 2:
The wall bushing serves as an intermediary component that provides a conductive pathway through the nonconductive wall. The bushing includes contact elements that receive signals from the first plug connector and transmit them to the second plug connector, enabling electrical connection through the nonconductive wall material.
2Object-affected harmful factors
If a shield support is added to provide shielding through the wall, then shielding effectiveness is improved, but the manufacturing complexity increases
Solution Approach 1:
The shield support is integrated with the first plug connector as a single component, and the wall bushing includes built-in shielding elements. This merging of shielding functions into existing components eliminates the need for separate shielding installations and simplifies the overall manufacturing process while maintaining effective electromagnetic shielding.
Solution Approach 2:
The wall bushing is designed to serve multiple functions simultaneously: it provides mechanical support for the connection, creates the electrical pathway through the wall, and provides electromagnetic shielding. This multi-functionality reduces the total number of components needed and simplifies manufacturing.
3Reliability
If direct contact between shield support and printed circuit board is ensured, then contact reliability is improved, but tolerance compensation becomes more difficult
Solution Approach 1:
The contact elements include spring-loaded or resilient components that can dynamically adjust to accommodate manufacturing tolerances and assembly variations. This dynamic contact mechanism ensures reliable electrical connection and shielding contact even when there are slight misalignments between components.
Solution Approach 2:
The contact elements are designed with adjustable contact pressure and compliance characteristics that can compensate for tolerance variations. By optimizing the mechanical properties of the contact elements (such as spring constant and contact force), reliable contact is achieved without requiring extremely tight manufacturing tolerances.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The assembly provides a reliable and efficient electrical connection and shielding capability, even in nonconductive materials, by ensuring direct contact between the shield support and the printed circuit board, minimizing transverse forces and maintaining contact despite component tolerances.
Implementation Method 1
One or more stepped arms are guided towards the opposite second side of the printed circuit board in order to hold the printed circuit board and to form with the contact arm reaching under the printed circuit board a frictional connection unit with the printed circuit board
Data Source
AI summary
A plug connection assembly includes a wall with a wall bushing and a plug connection which penetrates the wall bushing. The plug connection includes a first plug connector on one side of the wall and a second plug connector connected with the first plug connector on a second side of the wall by plugging the first and second connectors together. The second plug connector is arranged on a printed circuit board and the first plug connector includes a shield support in the form of a shielding plate. The shield support is held in contact with the printed circuit board.