Modular Mechanical Breakpoint Layout for Solid-State Circuit Breakers
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Solution Overview
Problem
Existing solid-state circuit breakers have integrated mechanical breakpoints with inseparable components, making them unsuitable for switching between different application requirements (AC/DC) and complicating maintenance and replacement.
Innovation Solution
A modular layout for the mechanical breakpoint, comprising a housing, breaking unit, mechanism, and transmission modules, allowing independent installation and disassembly, enabling flexible switching between AC/DC applications and varying numbers of stages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an integrated structure is used for the mechanical breakpoint, then the structural strength and reliability are improved, but the adaptability to different application requirements deteriorates
Solution Approach 1:
The mechanical breakpoint is divided into separate modules: a mechanism module, a breaking unit module, and a transmission module. This segmentation allows each module to be independently selected and configured for different applications (AC/DC, different numbers of stages) while maintaining structural reliability through standardized connection interfaces.
2Ease of manufacture
If an integrated structure is used for the mechanical breakpoint, then the manufacturing simplicity is improved, but the ease of maintenance and replacement deteriorates
Solution Approach 1:
The breaking unit module is designed as a separable component that can be independently removed from the mechanism module and transmission module. This allows faulty breaking units to be quickly replaced without disassembling the entire mechanical breakpoint, significantly improving maintenance efficiency while the standardized modules maintain manufacturing simplicity.
3Adaptability or versatility
If modules are made independent and separable, then the ease of maintenance and adaptability are improved, but the device complexity increases
Solution Approach 1:
The mechanism module and transmission module are designed as universal components that can work with different breaking unit configurations. The standardized interfaces and modular architecture allow the same base modules to support various application requirements (AC/DC switching, different numbers of stages) by simply changing the breaking unit module, thereby achieving adaptability without proportionally increasing overall device complexity.
Data Source
AI summary
The present disclosure discloses a solid-state circuit breaker, a mechanical breakpoint of the solid-state circuit breaker adopts a modular layout, which includes: a housing module; a breaking unit module including a stationary contact and a movable contact; a mechanism module configured to drive an action of the breaking unit module; and a transmission module, configured to connect the mechanism module and the breaking unit module, wherein the housing module, the mechanism module, the breaking unit module and the transmission module are independent from each other and are able to be installed and disassembled from each other. The solid-state circuit breaker according to the present disclosure is modularized, the installation process is simple, the switching of different application requirements is facilitated, and the maintenance and replacement of internal components are more convenient.