Plug Connecting Structure With Arc-Free Power Switching
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Solution Overview
Problem
The insertion and removal of plugs in electronic products can generate high-voltage electric arcs, leading to carbon accumulation and functional abnormalities due to sparks, which existing technologies have not adequately addressed.
Innovation Solution
A connecting structure and base that includes a bevel on the plug to drive a switch to power-off during insertion and a limiting structure to prevent unplugging, using a bevel and blocking piece to maintain the switch in the off position until fully inserted, and a restoring mechanism to power-on after full insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a plug is inserted into a socket during use, then electrical connection is established, but high-voltage electric arcs are generated causing carbon accumulation and functional abnormalities
Solution Approach 1:
The patent applies preliminary action by implementing a switch that automatically turns off the circuit board power before the plug makes full electrical contact with the socket. The bevel structure on the plug engages the actuating part during insertion, triggering the switch to close the circuit and cut power prior to complete connection, thereby preventing electric arcs from occurring during the connection process.
2Reliability
If manual operation is required to control power during plug insertion, then power control is achieved, but operational complexity and user burden increase
Solution Approach 1:
The patent implements self-service by designing an automatic power control mechanism where the plug's own insertion motion triggers the power-off action through the bevel-actuating part interaction. The system automatically detects the insertion event and executes the power cut without requiring any separate manual operation from the user, thereby maintaining ease of operation while ensuring reliable power control.
3Reliability
If a limiting structure is added to prevent unplugging, then connection stability is improved, but device complexity increases
Solution Approach 1:
The patent applies merging by integrating the limiting structure directly into the actuating part that controls the switch. The actuating part serves dual functions: it triggers the power-off switch during insertion and simultaneously acts as a limiting structure with a blocking piece that prevents unintended unplugging. This combination of functions into a single component achieves connection stability without significantly increasing overall device complexity.
Data Source
AI summary
A connecting structure includes a connecting base and a connecting assembly. The connecting base includes a housing, a circuit board, and a switch. The housing has a connecting opening. The circuit board is disposed in the housing. The switch is electrically connected to the circuit board. The connecting assembly includes a plug. The plug is detachably connected to the connecting opening. The plug includes a driving part. When the plug is inserted into the connecting opening and is located at a first position relative to the connecting opening, the driving part drives the switch to turn off to control power-off of the circuit board. When the plug is inserted into the connecting opening and located at a second position relative to the connecting opening, the switch is driven to turn on to control power-on of the circuit board.