Overturned L Clamping Body for Secure Wire Retention
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Solution Overview
Problem
Existing wire clamping solutions for electrical connection devices face issues with loose screw retention, irregular flat surfaces causing poor electrical contact, and difficulty in inserting wires under high electric loads, especially in compact designs.
Innovation Solution
A wire clamping mechanism with a conducting body in the form of an overturned L, featuring a vertical face with an opening for wire entry and a female thread for a screw, which upon tightening, deforms to jam the screw and prevent loosening, combining screw-type ease with resilient clamping, allowing for compact dimensions and efficient contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a screw-type slider is used for wire clamping, then the wire can be securely retained, but the screw tends to come loose with time and the complex flat surfaces are difficult to produce
Solution Approach 1:
Instead of moving the slider along the wire as in conventional designs, the invention inverts the mechanism by keeping the slider stationary and moving the screw along the slider. This inversion simplifies the counter-plate design to a simple flat surface while maintaining secure wire retention through the screw's clamping action.
Solution Approach 2:
The invention extracts the complex shaped surfaces from the counter-plate design, reducing it to a simple flat surface. The clamping function is achieved through the screw mechanism alone, eliminating the need for complex counter-plate geometries and improving manufacturability.
2Ease of operation
If a resilient plate is used for wire clamping, then the wire insertion is easy, but the resilient force required increases with electric loads making insertion difficult
Solution Approach 1:
The invention replaces the resilient plate mechanical system with a screw-based mechanical system. The screw provides adjustable clamping force that can accommodate high electric loads without requiring excessive insertion force, as the wire is guided into position before the screw is tightened.
Solution Approach 2:
The wire is inserted into the slider's guiding structure before the screw is tightened. This preliminary positioning action ensures easy wire insertion, followed by the screw's clamping action to secure the wire under various load conditions.
3Volume of moving object
If compact dimensions are used for the clamping device, then the overall size is reduced, but the ability to support high electric loads is compromised
Solution Approach 1:
The invention utilizes the longitudinal dimension of the slider to accommodate the screw's movement path. By extending the slider in the wire insertion direction, the design achieves compact transverse dimensions while maintaining sufficient screw travel distance to generate adequate clamping force for high electric loads.
Solution Approach 2:
The screw is designed to move dynamically along the slider during tightening, allowing the clamping force to be progressively applied. This dynamic adjustment capability enables the compact device to achieve and maintain the necessary clamping force for high electric load support.
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
This solution ensures secure and efficient wire clamping with reduced material usage, simplified production, and easy operation, supporting high electric loads while maintaining consistent counter-plate design for all applications, enhancing electrical contact and ease of use.
Implementation Method 1
tightening the screw in the vertical direction Z-Z and clamping the body 10 onto the wire end 1a causes deformation of the former (indicated by broken lines) with generation of a twisting moment which, being transmitted to the screw 2, causes jamming thereof
Implementation Method 2
the plate is released and, returning resiliently into the rest position, ensures clamping of the wire against the counter-plate
Data Source
Figure 1~4
Figure 5~8
AI summary
Clamping part for connecting electric wires (1, 1a), comprising a conducting body (10) where said conducting body has the form of an overturned L.