Self-Blow Switch Combined Inflation Pressure Relief Valve
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Solution Overview
Problem
Existing self-inflating circuit breakers in high-voltage technology are complex and require numerous components, complicating their construction and operation.
Innovation Solution
A self-inflating switch design featuring a single combined inflation and pressure relief valve, which reduces the number of components by using a single plate to isolate the compression and exhaust volumes, simplifying the structure and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single combined inflation and pressure relief valve is used, then the number of components is reduced and construction is simplified, but the valve must perform multiple functions simultaneously
Solution Approach 1:
The patent combines the inflation valve and pressure relief valve into a single integrated valve assembly. The valve body contains both the inflation passage (for filling the compression volume) and the pressure relief passage (for venting excess pressure), with separate controllable openings for each function. This merging reduces the number of components while maintaining both functions within one unified structure.
Solution Approach 2:
The single valve assembly is designed to perform multiple functions: it can control gas inflow during normal operation (inflation function) and can also release excess pressure when needed (pressure relief function). The valve includes separate controllable openings that can be independently actuated, allowing one component to fulfill the roles of what would traditionally require two separate valves.
2Reliability
If two plates with overlap zones and springs are used to control gas flow, then pressure control is achieved, but the construction becomes complicated and requires precise alignment
Solution Approach 1:
The patent merges the functions of multiple plates and springs into a single integrated valve assembly. Instead of using two separate plates with overlap zones and multiple springs, the invention uses one valve body with internal passages and controllable openings, eliminating the need for precise alignment of multiple components and reducing assembly complexity.
3Ease of operation
If multiple separate valves and alignment procedures are used, then gas flow control is achieved, but assembly time and operational complexity increase
Solution Approach 1:
The patent combines multiple separate valve components into a single pre-assembled valve unit. This integrated design eliminates the need for time-consuming alignment procedures and multiple assembly steps, while maintaining effective control over gas flow in both inflation and pressure relief modes.
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 design simplifies the construction and reduces the number of components required, enhancing the operational efficiency and reliability of the self-inflating switch while maintaining effective arc extinction in high-voltage applications.
Implementation Method 1
a compression volume (4) and an exhaust volume (5) which are filled with a gas
Implementation Method 2
The compression volume (4) is isolated from the exhaust volume (5) by means of a combined inflation and pressure relief valve (9) formed as one plate
Implementation Method 3
The inflation and pressure relief valve (9) includes at least one tab (7) formed in the panel
Implementation Method 4
In the arcing zone (3), an arc (15) occurs between the two arcing contacts (2a, 2b) when the circuit is switched off
Data Source
Figure 1
Figure 2a~2d
Figure 3
AI summary
The self-blowing switch (1) according to the invention, with contacts for switching an electrical circuit on and off, has a heating volume (19), a compression volume (4), and an exhaust volume (5). The compression volume (4) is connected to the heating volume by means of at least one first valve (14), which in turn is connected to an arc zone (3). In the arc zone (3), an arc (15) is generated between the two arc contacts (2a, 2b) when the electrical circuit is switched off during the separation of a first arc contact (2a) from an associated second arc contact (2b). The compression volume (4) is separated from the exhaust volume (5) by means of a combined filling and pressure relief valve (9) designed as at least one plate, with at least one tab (7) formed in the plate.