Plug Device for Spring-Force Connection
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Solution Overview
Problem
Spring-loaded connections often damage electrical conductors due to the hardness difference between copper-containing metals and spring steel, making it difficult to remove conductors without causing damage or requiring high force.
Innovation Solution
A plug-in device arrangement where the connection housing is detachable from the connecting sleeve, with a plug connection that remains in the spring-loaded connection, using a soft material for the plug-in connection and a crimp contact for protection, and employing latching means for secure and low-force detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a spring-loaded connection with hard spring steel clamping springs is used, then the electrical conductor is firmly clamped and good electrical conduction is ensured, but the electrical conductor is damaged by scratching and digging into the soft copper-containing metal
Solution Approach 1:
A plug-in device acts as an intermediary between the hard spring steel clamping spring and the soft copper-containing electrical conductor. The plug-in device includes a protective layer made of harder material facing the spring and a softer conductive layer facing the conductor, mediating the interaction to prevent direct damage while maintaining clamping force and electrical conduction.
Solution Approach 2:
The plug-in device is constructed with composite material structure: a first layer of harder metallic material arranged facing the clamping spring to prevent digging, and a second layer of softer, more conductive material arranged facing the electrical conductor to prevent scratching and ensure good electrical conduction.
2Stability of the object's composition
If a hard spring steel clamping spring is used to firmly clamp the electrical conductor, then the connection is secure, but pulling the electrical conductor out of the spring-loaded connection becomes very difficult
Solution Approach 1:
The plug-in device serves as a mediator that enables easy removal of the electrical conductor while maintaining stable connection during operation. The device can be actuated to release the conductor from the spring-loaded connection without requiring high pulling forces, while the spring maintains firm clamping during normal use.
3Adaptability or versatility
If the plug-in device is completely removed from the spring-loaded connection for reconfiguration, then the electrical device can be reconfigured, but the connection must be completely disconnected and reconnected
Solution Approach 1:
The connection system is segmented into three detachable components: the spring-loaded connection, the connecting sleeve with plug-in connection, and the connection housing. This allows the connection housing to be detached for reconfiguration while the plug-in connection remains in the spring-loaded connection, enabling partial disassembly for adaptability without complete disconnection.
Solution Approach 2:
The connection housing is nested within the connecting sleeve, which itself is in the spring-loaded connection. This nested structure allows the outer housing to be removed for reconfiguration while the inner plug-in connection remains engaged in the spring-loaded connection, maintaining partial connectivity.
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 easy and secure removal of electrical conductors from spring-loaded connections without damage, facilitating reconfiguration and temporary or permanent connections, while preventing automatic release due to vibrations.
Implementation Method 1
Spring-loaded connections have clamping springs, which are preferably made of hard spring steel and which are intended for clamping the electrical conductor inserted into the spring-loaded connection
Implementation Method 2
To ensure good electrical conduction, they are preferably made of a copper-containing metal or copper
Data Source
Figure 1a~1c
Figure 2a
Figure 2b~2c
AI summary
The invention relates to a plug device, in particular an interface plug device, which is intended to be inserted into a spring-force connection. The plug device has a connection housing, into which an electrical conductor is inserted, and a connecting sleeve having a plug connection arranged in the connecting sleeve. The plug device is characterized in that the connecting sleeve is detachably fastened to the connection housing. The invention further relates to an assembly of a connecting device having a spring-force connection and having a connecting sleeve of such a plug device inserted into the spring-force connection. The invention further relates to an assembly of a connecting device having a spring-force connection and having a plug device inserted into the spring-force connection.