Terminal Block Assembly Using C-Shaped Coupling for Vibration Reliability
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Solution Overview
Problem
Existing terminal block configurations lack reliability in maintaining coupling between adjacent units due to loosening from vibrations, leading to potential disconnection issues.
Innovation Solution
A terminal block set featuring a C-shaped coupling member that sandwiches and holds the wall portions of adjacent terminal blocks, enhancing coupling reliability through press-fit and accommodation mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If adjacent terminal block units are coupled by inserting a coupling fitting into an insertion hole, then the coupling structure is simple, but the coupling reliability deteriorates due to loosening from vibration
Solution Approach 1:
The coupling member is divided into a C-shaped main body with multiple arms that can independently engage with insertion holes of different terminal blocks. This segmentation allows each arm to provide independent coupling force, preventing loosening while maintaining structural simplicity
Solution Approach 2:
Multiple terminal blocks are merged into a single coupled assembly by the C-shaped coupling member that simultaneously engages with multiple insertion holes. The coupling member combines the function of multiple individual couplings into one unified structure, ensuring reliable connection across all adjacent terminal blocks
2Adaptability or versatility
If multiple terminal blocks are coupled using individual coupling fittings, then each coupling is independent, but the overall coupling reliability of the terminal block set deteriorates
Solution Approach 1:
The C-shaped coupling member merges multiple coupling functions into a single component that simultaneously connects multiple terminal blocks. This unified structure ensures that all couplings work together to maintain overall reliability, preventing the propagation of loosening across the terminal block set
Data Source
AI summary
A terminal block which can be coupled to another terminal block in an electrically connected state includes a housing, an input-side power supply terminal and an output-side power supply terminal. The housing includes a first wall portion and a second wall portion. The input-side power supply terminal and the output-side power supply terminal are arranged along the second wall portion inside the housing. The housing includes a protruding portion that functions as an obstructing member that hinders connection of the input-side power supply line to the input-side power supply terminal and a through hole that is arranged in a vicinity of the input-side power supply terminal of the second wall portion and penetrates the second wall portion in the first direction to allow insertion of the obstructing member.