Plug Connector Holding Frame With Integrated PE Terminal Access
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Solution Overview
Problem
Existing holding frames for plug connectors face challenges in connecting large cross-section PE conductors due to limited installation space, especially when using spring-loaded connection terminals, which often require additional housings and restrict conductor size.
Innovation Solution
A U-shaped contact chamber integrated with the holding frame accommodates a spring-loaded connection terminal and actuation element, allowing for a large insertion region and guiding mechanism, eliminating the need for additional housings and enabling connection of larger conductors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a spring-loaded connection terminal with additional housing is used, then the connection of PE conductors is simplified and quick, but the installation space requirement increases and the maximum conductor cross-section is restricted
Solution Approach 1:
The patent integrates the spring-loaded connection terminal directly into the holding frame structure, merging the terminal housing with the frame body. This eliminates the need for separate additional housings while maintaining the spring-loaded connection functionality, thereby reducing installation space requirements while preserving ease of conductor connection
Solution Approach 2:
The holding frame serves multiple functions: it provides structural support for contact inserts, integrates the PE terminal connection system, and incorporates the actuation mechanism for the spring-loaded terminal. This multi-functionality reduces the need for separate components and additional housing structures, optimizing space utilization
2Ease of operation
If a spring-loaded connection terminal with additional housing is used, then the connection of PE conductors is simplified and quick, but the device complexity increases
Solution Approach 1:
The patent combines the PE terminal housing, spring-loaded connection mechanism, and actuation element into a single integrated structure formed as one piece with the holding frame. This merging reduces the number of separate components and assembly steps, thereby reducing device complexity while maintaining operational simplicity
Solution Approach 2:
The spring-loaded connection terminal is designed to be self-actuating through the integrated actuation element, which automatically deflects the clamping leg when moved into the second position. This self-service mechanism eliminates the need for complex external actuation systems, reducing overall device complexity
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
Enables simple and secure connection of large cross-section PE conductors even in confined spaces by integrating the actuation element within the U-shaped contact chamber, ensuring efficient use of limited installation space.
Implementation Method 1
the clamping leg being deflected counter to a spring force thereof by the actuation element when the actuation element is in the second position
Data Source
AI summary
A holding frame for a plug connector for receiving a plurality of contact inserts includes: two side parts opposite one another; two end parts which opposite one another, at least one of the two end parts having a PE terminal having a metal terminal contact and a spring-loaded connection terminal, the spring-loaded connection terminal having a clamping spring and a contact piece, the clamping spring having a clamping leg that forms, together with the contact piece, a clamping site for a PE conductor to be connected, the contact piece being connected to the terminal contact in an electrically conductive manner; and an actuation element movable out of a first position, in which the clamping site is closed, into a second position, in which the clamping site is open, the clamping leg being deflected counter to a spring force thereof by the actuation element.