Double-Contact Wall Switch Control for Single-Live-Wire Dimming
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Solution Overview
Problem
Conventional dimming and speed regulation switches face challenges in achieving high-power control and stable operation for single live wire systems, particularly due to power limitations and high costs associated with wireless intelligent panels.
Innovation Solution
A mechanical switch dimming and speed regulation control system utilizing a double-contact mechanical switch, a dimming and speed regulation controller, and a controlled device, where the double-contact mechanical switch includes normally closed and normally open contacts that form current output defect gaps, allowing for reliable and stable control through a signal collector and control circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a direct output mode of using a thyristor to adjust light or a segmentation speed regulation switch to adjust speeds is adopted, then the dimming and speed regulation control can be implemented, but the power output is limited due to volume limitation of the wall dimming and speed regulation switch
Solution Approach 1:
The patent divides the control system into two parts: a compact wall switch for signal input and a separate controller for power processing. The wall switch only needs to detect button presses and send control signals, while the controller handles the actual power regulation. This segmentation allows the wall switch to remain small while the power output capability is determined by the separate controller, resolving the contradiction between limited switch volume and required power output.
2Adaptability or versatility
If a wireless intelligent panel is adopted for performing dimming and speed regulation, then the control functionality can be enhanced, but the cost increases significantly
Solution Approach 1:
The patent replaces complex wireless intelligent panels with a simplified control system that uses basic mechanical button inputs on a wall switch. The control functionality is achieved through straightforward electrical signal processing rather than expensive wireless communication modules. This substitution maintains essential dimming and speed regulation capabilities while dramatically reducing system cost.
3Reliability
If a conventional dimming and speed regulation switch is used, then the basic control function is available, but steady operation with single live wire supply is difficult to implement
Solution Approach 1:
The patent introduces a controller as an intermediary device between the wall switch and the controlled load (lamp or motor). The controller receives control signals from the wall switch and manages the power delivery to the load. This intermediary architecture enables stable operation with single live wire supply by properly managing the electrical connections and control signals, making the system reliable while maintaining installation simplicity.
Data Source
AI summary
A mechanical switch dimming and speed regulation control system includes a double-contact mechanical switch including at least one alternating current live wire input end, and at least one group of normally closed contact and normally open contact mutually short-circuited with each other, a dimming and speed regulation controller including a signal collector and a dimming and speed regulation control circuit, and a controlled device, outputs of the normally closed and open contacts loop-connected with the dimming and speed regulation controller, the dimming and speed regulation controller loop-connected with the controlled device, the signal collector electrically connected with an output loop of the double-contact mechanical switch and the dimming and speed regulation control circuit, respectively; the dimming and speed regulation control circuit loop-connected with the controlled device. The present disclosure implements high-power dimming and speed regulation control of a single live wire by using the double-contact mechanical switch, and overcomes problems of power limitation of a conventional dimming and speed regulation switch and difficulty for an intelligent switch to implement dimming and speed regulation of the single live wire.