Direct Current Circuit Breaker Handcart With Integrated Commutation
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Solution Overview
Problem
The existing direct current switch cabinets are complex, bulky, and inconvenient to operate and maintain due to their fixed structure, posing reliability risks during assembly, transportation, and maintenance.
Innovation Solution
A direct current circuit breaker handcart integrating a support frame, current carrying element, commutation element, and energy absorbing element, facilitating assembly, transportation, and maintenance by optimizing the spatial arrangement and electrical connections of key components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional direct current switch cabinet with separated control elements is used, then monitoring and handling of power supply failures is achieved, but the device becomes complex and bulky with inconvenient operation and maintenance
Solution Approach 1:
The patent merges multiple separated control elements (main circuit breaker, auxiliary circuit breaker, commutation components, energy absorbing elements) into an integrated handcart assembly. This consolidation maintains the functional capability to monitor and handle power supply failures while reducing overall device complexity and improving operational convenience.
Solution Approach 2:
The patent segments the direct current switch cabinet functionality into a movable handcart unit that can be independently assembled, transported, and maintained. This segmentation allows the control elements to be separated from the main cabinet structure, facilitating easier operation and maintenance while preserving reliability.
2Reliability
If a fixed structure direct current switch cabinet is used, then stable power supply is achieved, but assembly, transportation, and maintenance become inconvenient posing reliability risks
Solution Approach 1:
The patent transforms the fixed structure into a dynamic, movable handcart assembly that can be easily assembled, transported, and disassembled. The handcart design with movable components and standardized connections maintains electrical stability while dramatically improving operational ease during assembly, transportation, and maintenance activities.
Solution Approach 2:
The patent extracts the control elements from the fixed cabinet structure and places them on a movable handcart platform. This extraction allows the power supply system to maintain stability while enabling convenient assembly, transportation, and maintenance operations that were previously constrained by the fixed structure.
3Reliability
If multiple separated control elements are used in direct current switch cabinet, then comprehensive monitoring capability is achieved, but space utilization is reduced and operation becomes inconvenient
Solution Approach 1:
The patent combines multiple control elements (main circuit breaker, auxiliary circuit breaker, commutation capacitor, commutation inductor, energy absorbing elements) into a compact integrated handcart assembly. This merging maintains comprehensive monitoring capability while significantly improving space utilization compared to separated arrangements.
Solution Approach 2:
The patent arranges control elements in a three-dimensional optimized layout on the handcart platform, utilizing vertical and lateral spaces efficiently. This dimensional optimization allows comprehensive monitoring capability to be achieved within a compact footprint, improving space utilization.
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
Enhances control convenience and reliability by rationalizing element positions, reducing size and weight, and improving space utilization, thus simplifying operations and enhancing safety.
Implementation Method 1
a commutation capacitor, a commutation inductor, a commutation switch assembly, and a commutation capacitor charger that are electrically connected with each other
Implementation Method 2
a commutation capacitor, a commutation inductor, a commutation switch assembly, and a commutation capacitor charger that are electrically connected with each other
Implementation Method 3
An energy absorbing element is located on the support surface and is electrically connected with the current carrying element
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
A direct current circuit breaker handcart and a direct current switch apparatus are provided. In the direct current circuit breaker handcart, the current carrying element is located on the support surface, and includes a main circuit breaker and an auxiliary circuit breaker electrically connected with each other; the commutation element is located on the support surface, is electrically connected with the current carrying element, and includes a commutation capacitor, a commutation inductor, a commutation switch assembly, and a commutation capacitor charger electrically connected with each other; the repulsive assembly is configured to control opening and breaking off of the main circuit breaker; the energy absorbing element is located on the support surface, and is electrically connected with the current carrying element and the commutation element, respectively.