Conductor Terminal Lever Support for Compact Secure Clamping
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Solution Overview
Problem
Existing conductor connection terminals face challenges in providing robust and compact designs with efficient clamping mechanisms that require additional securing means and are not ergonomically optimized for ease of use.
Innovation Solution
The conductor terminal incorporates an actuating lever supported on a busbar with a recessed guide and bearing projection, allowing for pivoting guidance and fixation in specific positions, combined with a clamping spring and busbar design that minimizes space and material usage, and integrates a spring driver for efficient force transmission without additional components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the actuating lever is pivotably mounted in the insulating housing with support on the busbar, then the structural robustness and positioning accuracy are improved, but the device complexity increases due to additional mounting requirements
Solution Approach 1:
The busbar is designed to serve dual functions: as the electrical conductor and as the support structure for the actuating lever. The recess in the busbar provides both mechanical support and guidance for the lever, eliminating the need for separate mounting brackets or support structures. This merging of functions reduces device complexity while maintaining positioning accuracy.
Solution Approach 2:
The busbar is transformed into a multi-functional component that simultaneously performs electrical conduction, mechanical support, and positioning guidance. The recess feature in the busbar creates a bearing surface and guide for the actuating lever, making the busbar a universal structural element rather than just an electrical component.
2Power
If the clamping spring has an actuating leg with drive opening for spring driver engagement, then the force transmission efficiency is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The clamping spring's actuating leg is designed with the drive opening as an integral feature, eliminating the need for separate components or complex assembly operations. The spring itself provides the driving interface through its actuating leg, simplifying manufacturing while ensuring precise force transmission from the actuating lever to the clamping mechanism.
3Reliability
If the actuating lever is locked in place by locking element and counter-locking element, then the reliability under vibration is improved, but the ease of operation decreases due to additional locking mechanisms
Solution Approach 1:
The locking mechanism is integrated into the actuating lever assembly itself, with the locking element and counter-locking element forming a self-contained locking system. This merging ensures that the locking function does not require separate external mechanisms, maintaining operational simplicity while providing reliable vibration resistance through the engaged locking elements.
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 design achieves a robust, compact, and ergonomically friendly conductor terminal with secure clamping and minimal external space requirements, ensuring reliable operation under various loads and vibration conditions.
Implementation Method 1
a clamping spring (4) which, together with the busbar (3), forms a clamping point for spring clamping
Implementation Method 2
an actuating lever (5) with which the actuating leg (42) can be deflected to open or close the clamping point (7)
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a conductor terminal block with an insulating housing, a busbar, a clamping spring and an actuating lever which is pivotably mounted in the insulating housing over a pivoting range and which is pivotable between an open position and a closed position, wherein the clamping spring has an actuating leg which is deflected at least in the open position via a spring driver of the actuating lever, characterized in that the actuating lever is supported in the open position at a first and a second support point spaced apart therefrom and the actuating lever is pulled against the first and the second support point by a tensile force of the clamping spring acting from the actuating leg onto the spring driver.