Terminal Block Slide-Lock Assembly for Fast Secure Mounting
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Solution Overview
Problem
Existing connection terminal blocks for electrical switching equipment are time-consuming and difficult to install due to the requirement of screw fixation.
Innovation Solution
A connection terminal block design that allows easy and quick fixation to a chassis using shape conjugation, featuring positioning and holding fingers and lugs that can be inserted and slid into corresponding orifices and slides in parallel or intersecting directions, along with a securing device that secures the cover to the support, preventing retraction and enabling precise positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screw fixation is used to attach the terminal block to the chassis, then the connection is secure and reliable, but the installation process becomes time-consuming and difficult
Solution Approach 1:
The terminal block is divided into separate components: a support structure with positioning fingers and a cover with positioning lugs. These segmented parts can be independently positioned and secured to the chassis, eliminating the need for time-consuming screw fixation while maintaining connection reliability through the interlocking positioning features.
Solution Approach 2:
The positioning fingers and lugs are designed to automatically engage with corresponding recesses and slides on the chassis through shape conjugation. This self-positioning and self-locking mechanism eliminates the need for additional fastening operations, allowing rapid installation while ensuring secure attachment.
2Ease of operation
If shape conjugation is used for quick fixation, then installation becomes easy and rapid, but the complexity of the positioning structure increases
Solution Approach 1:
The positioning fingers on the support and lugs on the cover serve multiple functions: they guide the terminal block components onto the chassis during installation, position them precisely in the correct location, and provide mechanical interlocking to prevent disengagement. This multi-functionality reduces the need for separate positioning and securing mechanisms, thereby simplifying the overall structure despite the quick-fixation requirement.
3Productivity
If positioning fingers and lugs are used for shape matching fixation, then the terminal block can be quickly installed, but the risk of mispositioning increases
Solution Approach 1:
The positioning fingers and lugs are designed with asymmetric cross-sections that do not match unless oriented correctly. This asymmetric geometry ensures that the components can only be installed in the correct orientation, eliminating mispositioning risks while maintaining rapid assembly speed. The shape-conjugated features act as mechanical guides that physically prevent incorrect placement.
Data Source
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AI summary
The invention relates to a terminal block that is able to be fastened to a frame of an electric cutting apparatus and comprises a holder (20) provided with at least one positioning and holding finger, a cover (40) provided with at least one positioning and holding peg (42) and a securing device (60). The at least one positioning and holding finger is able to be introduced into a positioning and holding recess in the frame. The at least one peg (42) is able to be slid in a positioning and holding slideway (114) of the frame. The securing device (60) secures the cover (40) to the holder (20) when the positioning and holding finger is introduced into the positioning and holding recess and the peg (42) is slid in the positioning and holding slideway (114).