Circuit Breaker Deionizing Structure for Zero Flashover
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Solution Overview
Problem
Existing circuit breakers release ionized gas and metal vapor into the surrounding environment, posing safety hazards and increasing production costs due to the need for additional space and materials to contain them.
Innovation Solution
Incorporating deionizing components, such as metal braided mesh or foam metal, within the circuit breaker housing to deionize and contain ionized gas and metal vapor without increasing the device's size or material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a terminal cover is installed outside the circuit breaker to contain ionized gas and metal vapor, then safety is improved, but the occupation space and manufacturing cost increase
Solution Approach 1:
The deionizing component is nested within the existing housing structure, specifically positioned between the arc extinguishing chamber and the gas outlet passage. This internal placement eliminates the need for external terminal covers while maintaining the containment function, thereby reducing occupation space without compromising safety
Solution Approach 2:
A deionizing component is introduced as an intermediary element between the arc extinguishing chamber and the external environment. This component neutralizes ionized gas and metal vapor internally, preventing them from escaping without requiring external containment structures
2Reliability
If a terminal cover is installed outside the circuit breaker to contain ionized gas and metal vapor, then safety is improved, but the manufacturing cost increases
Solution Approach 1:
The deionizing function is merged into the existing housing structure by integrating the deionizing component within the interior space. This combines the containment and deionizing functions into a single integrated design, eliminating the need for separate terminal covers and reducing material costs
Solution Approach 2:
The deionizing component serves as an internal mediator that neutralizes harmful substances before they can escape, replacing the need for expensive external terminal covers with a more cost-effective internal solution
3Device complexity
If ionized gas and metal vapor are allowed to escape via gas outlet passage, then the structure remains simple, but surrounding circuits and power devices are harmed
Solution Approach 1:
The deionizing component is positioned as an intermediary between the arc extinguishing chamber and the gas outlet passage. It neutralizes ionized gas and metal vapor internally, preventing harmful factors from escaping while maintaining a simple overall structure without external covers
Solution Approach 2:
The harmful properties (ionization and conductivity) are extracted from the gas and vapor through the deionizing component. This removes the harmful factors from the exhaust stream before it reaches the gas outlet passage, allowing the simple original structure to remain safe
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
Prevents the release of ionized gas and metal vapor into the environment, ensuring safety and significantly reducing manufacturing costs by minimizing space and material requirements.
Implementation Method 1
a deionizing component is arranged between the arc extinguishing chamber and the gas outlet passage in the interior space of the housing, thereby preventing the ionized gas and the metal vapor flying out of the circuit breaker via the gas outlet passages
Data Source
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AI summary
Disclosed is a circuit breaker, including a housing 1 and an arc extinguishing chamber 2 arranged in an interior space of the housing 1, wherein a gas outlet passage is formed in a first sidewall 13 of the housing 1, the gas outlet passage is designed to communicate the interior space of the housing with a surrounding environment of the circuit breaker, at least one deionizing component 3, 4 is arranged between the arc extinguishing chamber 2 and the gas outlet passage, and the deionizing component 3, 4 is configured to allow conductive gases to pass therethrough and designed to cool the conductive gases therethrough. By the circuit breaker having the above-described configuration, the conductive gases are kept inside the housing of the circuit breaker and prevented from flying out of the circuit breaker, thus achieving zero flashover function.