PCB Housing Interface That Isolates Plug-In Forces
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Solution Overview
Problem
Existing interfaces for electrically contacting printed circuit boards using plug connectors often transmit undesirable plug-in and extraction forces to the board, risking damage during repeated cycles.
Innovation Solution
A double-sided or two-part interface configuration that absorbs plug-in and extraction forces by distributing them through a housing, using a combination of contact elements with sockets and pins, and insulating members to secure and stabilize the connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If contact pins are used to electrically connect the plug connector to the printed circuit board, then electrical connection is established, but plug-in and extraction forces are transmitted to the printed circuit board causing damage during repeated cycles
Solution Approach 1:
The interface is divided into two separate parts: a first interface with contact elements that connect to the printed circuit board, and a second interface with contact elements that connect to the plug connector. This segmentation isolates the printed circuit board from plug-in and extraction forces, allowing the housing to absorb these forces while maintaining reliable electrical connection through the intermediary second interface.
2Object-affected harmful factors
If a double-sided or two-part interface configuration is used to absorb plug-in and extraction forces, then the printed circuit board is protected from stress, but the device complexity increases
Solution Approach 1:
The housing serves multiple functions: it provides mechanical support, absorbs plug-in and extraction forces, and houses the second interface with contact elements. This multi-functionality reduces the need for additional specialized components, thereby limiting the increase in device complexity despite the double-sided interface configuration.
3Reliability
If contact elements are soldered to the printed circuit board to ensure reliable electrical connection, then electrical stability is improved, but the manufacturing process becomes more complex and time-consuming
Solution Approach 1:
The first contact elements are pre-connected to the printed circuit board terminals before final assembly. This preliminary connection allows for simplified manufacturing processes such as press-fit or snap-fit connections instead of requiring complex soldering operations during final assembly, while still ensuring reliable electrical stability.
Data Source
AI summary
An interface for electrically contacting a printed circuit board housed in a housing is formed as a double-sided and/or two-part interface by a first interface having at least one first contact element which is brought into electric contact with at least one terminal of the printed circuit board; a second interface having at least one second contact element corresponding to the first interface and arranged on an opening of the housing in a stationary manner such that the first and second contact elements are brought into contact with each other. The second contact element provides a terminal which can be contacted from outside the housing, wherein plug-in and/or pulling forces acting on the terminal are received by the second interface and/or the housing. The second interface is designed for connecting a plug connector on the housing exterior, and the first contact element is provided by a stamped bent contact.