Circuit Breaker Housing with Segmented Current Path Regions
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Solution Overview
Problem
Circuit breakers face challenges in optimizing internal space allocation within standardized housings, leading to suboptimal distribution of protection devices and potential functional inefficiencies due to space constraints.
Innovation Solution
A single-pole circuit breaker housing design with two current path regions, each equipped with electromagnetic and thermal protection devices, arc extinguishing mechanisms, and an operating mechanism, optimizing space usage by allocating sections for coils, bimetallic strips, and arc chambers to provide comprehensive protection within standardized dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the housing is divided into two current path regions with equal volume distribution, then space utilization is optimized and functional performance is enhanced, but the device complexity increases due to additional sections and components
Solution Approach 1:
The housing is divided into two current path regions (first and second current path regions) with multiple sections each (first, second, third, and fourth sections), allowing independent optimization of space allocation for different functional components while maintaining overall compactness
Solution Approach 2:
Each section is configured to receive specific protection devices (electromagnetic, thermal, arc extinguishing, operating mechanism), enabling the housing structure to serve multiple protective functions simultaneously within standardized envelope dimensions
2Adaptability or versatility
If standardized envelope dimensions are used, then compatibility with existing installations is maintained, but the available internal space is constrained limiting the number of protection devices
Solution Approach 1:
The housing utilizes the full three-dimensional space within standardized envelope dimensions by creating multiple levels and sections (first, second, third, fourth sections) that vertically and laterally organize protection devices, effectively increasing usable volume without exceeding external dimensions
3Reliability
If more protection devices are incorporated, then circuit protection capability is enhanced, but the housing dimensions increase beyond standard sizes
Solution Approach 1:
Multiple protection devices (electromagnetic protection, thermal protection, arc extinguishing devices, operating mechanisms) are nested within the housing structure through hierarchical sectioning, where each section contains specific devices that are integrated into the overall compact arrangement
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 enables efficient double protection for single-phase circuits and full protection for three-phase circuits, optimizing space allocation and enhancing functional performance by utilizing the entire internal width effectively.
Implementation Method 1
a first section configured to receive an electromagnetic protection device
Implementation Method 2
a second section configured to receive a thermal protection device
Implementation Method 3
a third section configured to receive an arc extinguishing device
Data Source
Figure 1
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AI summary
Housing for single-pole circuit breaker, defining a housing that includes two current path regions, each region having a first section configured in order to receive an electromagnetic-protection device, a second region configured in order to receive a thermal-protection device, a third section configured in order to receive an arc-extinguishing device, and a fourth section configured in order to receive a mechanical functioning device, in which each first section occupies a substantial part of the available inner width of the housing and is placed between the respective third and fourth sections, and in which each second section occupies approximately half the available inner width of the housing.