Wiring Duct Plug With Rotating Electrodes
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Solution Overview
Problem
Conventional wiring duct plugs with movable parts for electrical switching have low operational reliability due to their mechanical complexity.
Innovation Solution
A wiring duct plug design featuring a rotatable rotator, pair of non-movable electrode terminals, and movable electrode terminals that rotate to either connect or release conductive lines to the non-movable terminals, eliminating the need for a movable part to select conductive lines, thereby improving reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an electrical switching means with a movable part is used to switch between conductors, then the plug can selectively connect different conductors, but the operational reliability decreases due to mechanical complexity
Solution Approach 1:
The patent removes the movable switching part from the electrical switching means, extracting the source of mechanical failure. The selective connection function is achieved through a fixed contact structure where different conductors are permanently positioned at different locations, and selection is made by choosing which fixed contact to use during installation, rather than through mechanical switching during operation.
Solution Approach 2:
Instead of using a movable part to select conductors during operation, the patent inverts the approach by having fixed contacts positioned at different locations, where the selection is determined by the physical arrangement and installation position rather than mechanical movement during use.
2Adaptability or versatility
If a movable part is used for switching between conductors, then the plug can dynamically change connections, but the device complexity increases
Solution Approach 1:
The movable switching mechanism is completely removed from the design. The patent achieves conductor selection through a static contact structure where different conductors are permanently positioned at different locations, eliminating mechanical complexity while maintaining the ability to establish different electrical connections.
Solution Approach 2:
The contact structure is segmented into multiple fixed contacts positioned at different locations, each corresponding to a different conductor. This segmentation allows different connection configurations to be achieved through the physical arrangement of fixed contacts rather than through a single movable switching mechanism.
Data Source
AI summary
A wiring duct plug that does not have a movable part for selecting any of a plurality of conductive lines, and has a high operational reliability is provided. A wiring duct plug can be directly connected to a respectively corresponding conductive line, and comprises a plurality of movable electrode terminals, rotating together with a rotator. At the connection position, at least two but not all of the plurality of movable electrode terminals are joined into one at the base end portion and electrically coupled to one of non-movable electrode terminals, and the remaining movable electrode terminal is electrically coupled to the other non-movable electrode terminal.