Connector Contact Insert With Spring Grounding for Easy PE Wiring
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Solution Overview
Problem
Existing contact solutions for connector parts often require complex screw connections for attaching protective lines, which can be cumbersome and difficult to access, especially when the contact insert is already inserted into a connector housing.
Innovation Solution
A contact use featuring a grounding element with a contact device that includes a housing with a plug opening for the protective line and a spring element to lock and contact the protective line with the grounding element, allowing for easy plugging and reliable connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a screw terminal is used to connect the protective wire, then a reliable mechanical connection is achieved, but the operation becomes cumbersome and difficult to access when the contact insert is already inserted into the connector housing
Solution Approach 1:
The patent replaces the screw terminal mechanism with a spring-loaded push-button connection system. The spring element provides continuous contact pressure to maintain reliable electrical connection, while the push-button mechanism allows for tool-free attachment and detachment. This substitution eliminates the need for screwdrivers and complex tightening operations, making the connection device easily accessible and operable even when the contact insert is mounted in the connector housing.
Solution Approach 2:
The spring element automatically maintains contact pressure with the protective wire without requiring manual adjustment or tightening. The connection device self-regulates the contact force through the spring's elastic properties, ensuring reliable connection while eliminating the need for operator intervention to maintain proper torque or tightness.
2Stability of the object's composition
If a screw terminal is used, then secure fixation is achieved, but additional operating steps are required to attach multiple protective wires
Solution Approach 1:
The connection device features multiple independent plug-in openings, each with its own spring element and push-button mechanism. This segmentation allows multiple protective wires to be connected simultaneously or sequentially without interfering with each other. Each wire can be attached and detached independently, significantly reducing the time required to connect multiple wires compared to using a single screw terminal that would require repeated tightening operations.
Solution Approach 2:
The spring elements are pre-loaded and positioned within the housing, ready to immediately engage with protective wires. The push-button mechanisms are pre-configured to release the spring's clamping force when activated. This preliminary preparation eliminates the need for manual adjustment or tightening steps during the connection process, allowing for rapid attachment of multiple wires.
3Strength
If a screw connection is used, then a robust connection is achieved, but the device complexity increases
Solution Approach 1:
The patent extracts the complex screw-threaded connection mechanism and replaces it with a simplified spring-loaded system. The essential function of maintaining contact pressure is achieved through the spring element, while the connection and disconnection operations are simplified to single push-button actions. This extraction of the screw mechanism reduces device complexity while maintaining adequate connection strength through the spring's elastic force.
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 a simple, convenient, and reliable connection of protective lines to the grounding element without the need for additional operating steps, improving accessibility and ease of use compared to traditional screw connections.
Implementation Method 1
a spring element (26) arranged on the housing (230) for locking the protective line (25) in the plug-in opening (231) and for contacting the protective line (25) with the grounding element (22)
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A contact insert (2, 4) for a connector part (1, 3) comprises a frame part (20) which has a plug-in section (200) for plugging connection to a further plug-in connector part (3, 1), at least one on the plug-in section (200) arranged electrical contact element (211, 411) and on the frame part (20) arranged grounding element (22) to which a protective line (25) can be connected. In addition, a contacting device (23) arranged on the grounding element (22) is provided, which has a housing (230) with a plug-in opening (231) for plugging in the protective cable (25) and a spring element (26) arranged on the housing (230) for locking the protective line (25) in the plug-in opening (231) and for contacting the protective line (25) with the grounding element (22). In this way, a contact insert for a connector part is made available, which enables a protective line to be connected in a simple manner.