Terminal Block Fastening Handle for Vibration Stability
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Solution Overview
Problem
Conventional pluggable-type terminal blocks experience loose connections due to equipment vibrations and wire displacement, leading to instability in signal transmission and power delivery.
Innovation Solution
A terminal block design featuring a fastening handle with a protruding plate, cavity, and retaining slot, allowing for secure fastening without tools and enabling easy detachment, while reducing weight and enhancing structural strength through a central fastening handle configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the plug and socket are engaged only by their structure configuration, then the installation is quick and easy, but the connection becomes loose due to vibrations and wire displacement
Solution Approach 1:
The terminal block employs a self-fastening mechanism where the handle automatically engages with the fastening portion upon insertion, eliminating the need for separate fastening operations. The structure configuration itself provides the fastening function through the interaction between the protruding plate and fastening portion, making the system self-sufficient for maintaining connection stability
Solution Approach 2:
The terminal block incorporates a dynamic fastening system where the handle can move between inserted and pulled states. The fastening portion is designed to engage automatically during insertion and can be released by pulling the handle, providing adaptability to operational needs while maintaining stable connection during normal use
2Reliability
If a fastening handle is added to improve connection stability, then the connection becomes secure, but the device complexity increases
Solution Approach 1:
The terminal block merges the fastening function with the existing structural components. The protruding plate and fastening portion are integrated into the plug and socket structures respectively, while the handle serves dual purposes as both a manipulation tool and a fastening element. This consolidation avoids adding separate complex fastening mechanisms
Solution Approach 2:
The fastening system is segmented into distinct functional elements: the protruding plate on the plug, the fastening portion on the socket, and the handle. Each segment performs a specific function and can be independently analyzed, which simplifies the overall design while achieving reliable connection through their coordinated interaction
3Weight of moving object
If the fastening handle is positioned centrally, then the configuration becomes compact and weight is reduced, but the manufacturing precision requirements increase
Solution Approach 1:
The fastening mechanism employs asymmetric geometric features including the protruding plate with its specific shape and the correspondingly designed fastening portion. These asymmetric elements provide inherent alignment guidance during insertion, ensuring that the handle correctly engages with the fastening portion even with variations in manufacturing precision
Solution Approach 2:
The structural configuration of the protruding plate and fastening portion is designed to automatically guide the handle into the correct position during insertion. This preliminary alignment action occurs before the final fastening engagement, reducing the impact of manufacturing precision variations on the overall assembly accuracy
Data Source
AI summary
A terminal block includes a first connection member, a second connection member and a fastening handle. The first connection member includes a handle platform, a protruding plate protruding from the handle platform, and a cavity inside the handle platform. A retaining slot communicating with the cavity is formed inside the protruding plate. The second connection member includes a fastening slot into which the protruding plate is plugged and includes a fastening portion arranged near the fastening slot. The fastening handle includes an end section inserted through the retaining slot and engaged with the protruding plate, an engagement section extended from the end section and received in the cavity, and a head section protruding out of the handle platform.