Gas Cock Electromagnetic Valve for Shaft Actuation Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing gas appliances with electromagnetic valves require complex designs and additional components for manual actuation detection, complicating construction, assembly, and maintenance, and may not ensure safe and reliable gas passage control.
Innovation Solution
A gas appliance with an electromagnetic valve that includes a cock shaft and a signal line, where the cock shaft's movement automatically controls the electromagnetic valve's opening position through electrical connection, simplifying the detection of pressure actuation and facilitating safe gas passage control without requiring specific electrical connections between the cock shaft and signal line.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a position sensor configured like an electric switch is used to detect cock shaft actuation, then the opening position of the electromagnetic valve can be detected, but the construction and assembly become more complex with additional components
Solution Approach 1:
The patent combines the signal line with the existing electromagnetic valve structure by making the signal line integral to the valve body or coil assembly. This merging eliminates the need for separate position sensing components while maintaining reliable detection of cock shaft actuation through the electromagnetic valve's inherent electrical characteristics.
Solution Approach 2:
The electromagnetic valve serves multiple functions: it controls gas flow and simultaneously provides the signal line for detecting cock shaft actuation. By making the electromagnetic valve multi-functional, the patent eliminates dedicated position sensing components while maintaining reliable detection capability through the valve's own electrical structure.
2Reliability
If additional position sensor components are added to detect manual actuation, then control detection is improved, but maintenance difficulty increases
Solution Approach 1:
The detection function is merged into the electromagnetic valve's existing electrical structure. The signal line becomes part of the valve assembly rather than a separate component, which simplifies maintenance as there are fewer independent parts that can fail or require adjustment.
Solution Approach 2:
The electromagnetic valve structure itself provides the detection capability through its electrical characteristics. The valve's own electrical circuitry serves the dual purpose of actuating the valve and detecting its position, eliminating the need for external sensing components that would require separate maintenance.
3Measurement precision
If specific electrical connections between cock shaft and signal line are required, then detection precision is improved, but device complexity and assembly difficulty increase
Solution Approach 1:
The signal line is merged with the electromagnetic valve structure so that electrical connection detection becomes inherent to the valve's operation. The cock shaft's movement naturally affects the electromagnetic valve's electrical state, providing detection without requiring separate connection mechanisms.
Solution Approach 2:
The patent replaces complex mechanical electrical connection detection with electrical field-based detection through the electromagnetic valve. Instead of requiring precise mechanical contacts or switches, the system uses the electromagnetic valve's electrical characteristics to detect cock shaft position, simplifying the connection requirements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration allows for simple and reliable automatic detection of pressure-activated gas cock opening, enhancing the safety and effectiveness of gas passage control to the burner, while simplifying the construction and maintenance of the gas appliance.
Implementation Method 1
By controlling the actuation of the coil, the movement of the moving part can be controlled, since an electric field is generated, drawing the moving part towards the static part, keeping the moving part adhered to the static part or repelling the moving part away from the static part.
Implementation Method 2
The moving element is arranged between the cock shaft and the static element, and moves being pushed by the cock shaft when the latter moves as the gas cock is pressure-activated
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
Gas cock comprising an electromagnetic valve (200) which allows the passage of gas therethrough in an opening position and prevents such passage in a closing position, a shaft (21) that moves towards the electromagnetic valve (200) when the gas cock is pressure-actuated, and a line (4). The electromagnetic valve (200) comprises a static element (201) electrically connected to the line (4) and a moving element (203) which is arranged between the shaft (21) and the static element (201) and which moves being pushed by the shaft (21) when the latter moves. The electromagnetic valve (200) is thereby caused to go to the opening position, and the line (4) is thereby electrically connected to the shaft (21) through the static element (201) and the moving element (203) of the electromagnetic valve (200), an opening signal representative of said electrical connection being transmitted through the line (4).