Switching assembly of gas stove
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Solution Overview
Problem
Conventional gas stoves require separate switches for natural gas and liquid gas cylinder types due to differences in gas passageway size, leading to incomplete combustion or small flames when an incorrect switch is used, increasing manufacturing costs.
Innovation Solution
A switching assembly for gas stoves that includes a regulating valve with a rotatable regulating member, a shaft, a knob, a stop board with a curved slot, and a restricting device, allowing adjustable gas flow by changing the open area of the exit, making it suitable for both types of gas stoves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a gas switch for natural gas type is mounted in a gas cylinder type gas stove, then the gas supply is high, but incomplete combustion occurs
Solution Approach 1:
The patent implements a rotatable regulating member with different open area configurations that can be dynamically adjusted between at least two positions. One position provides a larger open area for natural gas applications, while another position provides a smaller open area for gas cylinder applications, allowing the same gas switch to adapt to different gas types and prevent incomplete combustion
Solution Approach 2:
The patent changes the physical parameter of the gas passageway open area by providing the regulating member with multiple configured positions. Each position corresponds to a different open area size, enabling the gas switch to match the appropriate gas flow parameters for either natural gas or gas cylinder applications, thereby ensuring proper combustion
2Quantity of substance
If a gas switch for gas cylinder type is mounted in a natural gas type gas stove, then the gas supply is low, but the stove only provides small flames
Solution Approach 1:
The rotatable regulating member allows dynamic adjustment of the gas passageway open area between different positions. When used in natural gas applications, the regulating member can be positioned to provide a larger open area, enabling sufficient gas flow to support large flame output and appropriate cooking productivity
Solution Approach 2:
By changing the open area parameter of the gas passageway through rotation of the regulating member to different positions, the gas switch can accommodate the higher gas supply requirements of natural gas stoves, ensuring adequate flame size and cooking productivity
3Adaptability or versatility
If both types of gas switches are prepared for different gas stoves, then different gas stoves can be properly supported, but manufacturing cost increases
Solution Approach 1:
The patent designs a universal gas switch assembly with a multi-position regulating member that can function with both natural gas and gas cylinder types. This single multi-functional design eliminates the need for manufacturers to produce separate gas switches for different gas types, reducing manufacturing complexity and cost while maintaining compatibility with various stove types
Solution Approach 2:
The regulating member is segmented into distinct rotational positions, each corresponding to a specific open area configuration optimized for different gas types. This segmentation allows one component to provide multiple functions, replacing the need for multiple separate components and reducing overall manufacturing cost
Data Source
AI summary
A switching assembly of a gas stove includes a regulating valve, a knob, a stop board, and a restricting device. The regulating valve has a valve member and a regulating member, which is rotatable to regulate a gas flow through the valve member. The knob is connected to an end of a shaft which is connected to the regulating member with an opposite end thereof, and therefore the regulating member can be rotated by turning the knob. The stop board is located between the valve member and the knob, wherein the stop board has a curved slot, which has a first stop portion and a second stop portion. The restricting member is movable in the curved slot and is restricted by the first or the second stop portions. When the restricting member touches the first stop portion, the switching assembly allows larger gas flow to flow through.