Resilient Contact Arm for Plug Connection Damage Reduction
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Solution Overview
Problem
Existing electrical contacting arrangements are prone to damage during connection and disconnection due to scratching or scraping of contact faces, which can lead to reliability issues and increased risk of failure.
Innovation Solution
A resiliently redirectable contact arm system with a counter-element that displaces parallel to the contact arm, allowing the contact arm to be redirected transversely relative to the displacement direction, reducing the risk of damage by keeping the contact faces protected within a housing until they protrude for contact, and utilizing a pivot and redirection portion configuration to ensure consistent and secure contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the contact arm is kept retracted within the housing during insertion, then the contact face is protected from damage, but the contact arm cannot establish electrical contact until after insertion is complete
Solution Approach 1:
The contact arm transitions from a static retracted position to a dynamically redirected position during the insertion process. The redirectable contact arm is designed to change its orientation from parallel to transverse relative to the displacement direction, enabling it to engage the counter-contact face after the housing has been inserted, thus protecting the contact face during insertion while still establishing contact efficiently
Solution Approach 2:
The contact arm is pre-positioned in a retracted state within the housing before insertion begins. This preliminary positioning protects the contact face during the critical insertion phase, and the arm is designed to automatically redirect to its contact position once the housing is properly seated, ensuring both protection and timely contact establishment
2Object-affected harmful factors
If the contact arm is made resiliently redirectable, then the contact face becomes less scratched and scraped, but the structure becomes more complex
Solution Approach 1:
The contact arm utilizes a resilient, flexible structure that can bend and redirect during insertion. This flexible design allows the contact arm to transition from a parallel to transverse orientation relative to the displacement direction, enabling it to engage the counter-contact face in a controlled manner that minimizes scratching and scraping while maintaining structural simplicity
Solution Approach 2:
The contact arm's physical state changes during insertion, transitioning from a retracted parallel position to an extended transverse position. This parameter change in orientation and position allows the same simple structure to serve multiple functions: protection during insertion and contact establishment afterward, without requiring complex additional mechanisms
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 solution significantly reduces the risk of damage to contact faces by protecting them during initial alignment and insertion, ensuring reliable and consistent electrical contact with minimal wear, while also allowing for secure clamping and easy assembly.
Implementation Method 1
a resiliently redirectable contact arm (5) having a contact face (15) and a counter-element (6) which can be displaced parallel with the contact arm (5), the counter-element (6) being displaced with respect to a start position in a contact position and the contact arm (5) thereby being resiliently redirected transversely relative to the displacement direction of the counter-element (6)
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to an arrangement (1) for electrical contacting and a plug type connection (40) comprising such an arrangement (1). The invention further relates to a method for joining an arrangement (1) for electrical contacting to a counter-arrangement (3). An object of the invention is to provide an arrangement (1) for electrical contacting, in which the risk of damage is as small as possible. This object is achieved by an arrangement (1) for electrical contacting which comprises a resiliently redirectable contact arm (5) having a contact face (15) and a counter-element (6) which can be displaced parallel with the contact arm (5), wherein the counter-element (6) is displaced with respect to a start position (A) in a contact position (K) and the contact arm (5) is thereby resiliently redirected transversely relative to the displacement direction (M) of the counter-element (6).