Gas Safety Valve Coil Reel With Compression Wire Contacts
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Solution Overview
Problem
Existing gas safety valves for cooking appliances face challenges in reliable electrical connections due to soldering issues, which can lead to electrical connection failures and gas leakage risks.
Innovation Solution
The design incorporates a reel with axial projections that provide electrical contact areas for phase and grounding wires, eliminating the need for soldering by using compression to establish and maintain connections between the wires and the valve's components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If soldering is used to connect phase and grounding wires to the electromagnet, then electrical connections can be established, but the reliability of electrical connections deteriorates due to soldering issues and gas leakage risks
Solution Approach 1:
The patent replaces the soldering process (thermal/chemical joining) with a mechanical compression connection system. The reel structure provides dedicated contact areas where phase and grounding wires are mechanically compressed against conductive elements, eliminating the need for soldering while ensuring reliable electrical connections.
Solution Approach 2:
The reel acts as an intermediary component that facilitates electrical connections without requiring direct soldering between wires and the electromagnet. The reel's contact areas serve as intermediate connection points, mediating the electrical connection through mechanical compression rather than thermal joining.
2Ease of manufacture
If soldering is used to connect wires, then electrical connections are established, but the risk of gas leakage and connection failures increases
Solution Approach 1:
The patent eliminates soldering operations that could compromise the integrity of gas-containing components. By using mechanical compression connections through the reel structure, the system avoids thermal processes that might create weak points or defects in the gas valve housing, thereby reducing gas leakage risks.
Solution Approach 2:
The reel structure is designed with built-in compression contact areas that provide predetermined, reliable connection points. This pre-engineered connection system cushiones against potential connection failures by ensuring robust mechanical and electrical contact before the valve is put into service, preventing connection issues that could lead to gas leakage.
3Reliability
If terminals are inserted and soldered in the reel, then electrical connections are made, but the manufacturing complexity and assembly difficulty increase
Solution Approach 1:
The patent merges the functions of terminal holders, contact areas, and wire fixation into a single integrated reel structure. The reel simultaneously provides mechanical support, electrical contact surfaces, and wire positioning, eliminating the need for separate terminals and simplifying both manufacturing and assembly processes while maintaining reliable electrical connections.
Solution Approach 2:
The reel serves multiple functions: it supports the coil winding, provides structural support for the electromagnet, and creates electrical connections for both phase and grounding wires through its integrated contact areas. This multi-functional design reduces the number of separate components needed, simplifying manufacturing and assembly.
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 solution simplifies the manufacturing and assembly of the electromagnet, ensures reliable electrical connections, and reduces the risk of gas leakage and connection failures, while avoiding the drawbacks of soldering.
Implementation Method 1
an electromagnet with a fixed core, a support of the electromagnet, and a moving armature coupled to the plug and movable with respect to the electromagnet between an open valve position in which the electromagnet is energized
Implementation Method 2
both electrical contact areas exerting an elastic force against the phase connector and the support, respectively, assuring the electrical connection
Data Source
AI summary
According to one implementation a gas safety valve is provided that includes a reel onto which a coil is wound, the coil including a phase wire and a grounding wire. The reel has an elongated projection having first and second electrical contact areas onto which the phase wire and grounding wire are respectively arranged. The gas safety valve further includes an electromagnet having a core that is at least partially housed in an internal cavity of the reel. The safety gas valve also includes a support and a phase connector. The first electrical contact area is arranged such that it is inserted in the phase connector and the second electrical contact area is arranged such that it is inserted in the support, both electrical contact areas exerting an elastic force against the phase connector and the support, respectively, assuring the electrical connection between the phase wire and the phase connector, and between the grounding wire and the support, respectively.