Leakage Current Protection Assembly With Integrated Power Conversion
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Solution Overview
Problem
Leakage current protection devices lack integration of appliance functions, such as AC/DC conversion and electromagnetic compatibility filtering, limiting their versatility and reliability across various electrical applications.
Innovation Solution
A leakage current protection device with a core assembly that includes a leakage current protection assembly and an auxiliary function assembly, capable of performing load-end functions like power conversion and electromagnetic compatibility filtering, integrated into a single unit with a control circuit board and wire crimping assembly for enhanced functionality and adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If leakage current protection device integrates auxiliary functions (AC/DC conversion, EMC filter), then functionality and versatility are improved, but device complexity increases
Solution Approach 1:
The patent combines the leakage current protection function with auxiliary functions (AC/DC conversion, EMC filtering) into a single integrated device. The execution unit integrates both the leakage current protection assembly and auxiliary function assembly, allowing one device to perform multiple functions that would traditionally require separate components, thereby improving versatility while managing complexity through unified design.
Solution Approach 2:
The leakage current protection device is designed with universal applicability by incorporating auxiliary function assemblies that can perform multiple load-end functions. The execution unit can connect and disconnect electrical connections for different types of appliances while providing both protection and auxiliary functions, making the device adaptable to various electrical applications beyond its traditional single-purpose design.
2Reliability
If leakage current protection device integrates auxiliary functions, then reliability is improved, but device complexity increases
Solution Approach 1:
By merging the leakage current protection assembly and auxiliary function assembly into a single execution unit, the patent ensures that both protection and auxiliary functions operate as an integrated system. This unified structure improves reliability by ensuring coordinated operation between protection and auxiliary functions, while the shared control architecture reduces the complexity that would arise from multiple independent systems.
3Adaptability or versatility
If leakage current protection device integrates auxiliary functions, then versatility across applications is improved, but ease of manufacture decreases
Solution Approach 1:
The execution unit is divided into distinct assemblies: the leakage current protection assembly and the auxiliary function assembly. This segmentation allows each assembly to be manufactured and tested separately, improving ease of manufacture while maintaining the integrated functionality. The separate assemblies can be produced using different manufacturing processes optimized for their specific functions, then combined into the final integrated device.
Data Source
AI summary
A leakage current protection device includes a shell and a core assembly disposed within the shell, the core assembly including a leakage current protection assembly coupled to power supply lines, the leakage current protection assembly including an execution unit and an operation unit configured to control the execution unit, the execution unit being operable to connect and disconnect an electrical connection between the input end and the output end of the power supply lines, and a auxiliary function assembly, coupled to the leakage current protection assembly, configured to perform at least one load-end function. By integrating the auxiliary function assembly into the leakage current protection device, the device can perform at least a part of the load-end function, such as power conversion function and/or electromagnetic compatibility filter function. The device is reliable and versatile, suitable for various electrical appliances. It also has a simple structure and wide applicability.