Breaker Box Insulation Detection for Series-Connected Battery Boxes
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Solution Overview
Problem
Current insulation detection methods for electrical box systems with multiple electrical boxes connected in series cannot detect the insulation status of individual boxes, leading to inaccuracies and inefficiencies in identifying faulty components.
Innovation Solution
Each electrical box in the system is equipped with its own insulation detection assembly, comprising resistors and detectors, allowing for independent insulation detection without interference, and utilizing alternating current injection for improved accuracy and speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If multiple electrical boxes are connected in series for insulation detection, then the detection process is simplified, but the detection precision of individual electrical boxes deteriorates
Solution Approach 1:
The patent divides the insulation detection system into independent detection units, with each electrical box equipped with its own insulation detection assembly. This segmentation allows each box to be detected independently while maintaining system-level simplicity, resolving the contradiction between detection process simplicity and individual detection precision.
2Device complexity
If a common ground is shared among multiple electrical boxes, then the system structure is simplified, but the detection accuracy of individual boxes deteriorates due to mutual interference
Solution Approach 1:
The patent implements independent grounding for each electrical box's insulation detection assembly, separating the ground references to eliminate mutual interference. This segmentation of grounding systems ensures that detection signals from one box do not affect others, maintaining both structural simplicity and detection accuracy.
Solution Approach 2:
Each electrical box is equipped with its own insulation detection assembly with locally optimized detection circuits and grounding. This local quality approach ensures that each detection system operates independently with optimal performance, preventing interference while maintaining overall system simplicity.
3Ease of operation
If insulation detection is performed on the entire electrical box system as a whole, then the detection operation is simplified, but the ability to identify faulty components deteriorates
Solution Approach 1:
The patent equips each electrical box with its own insulation detection assembly, enabling independent detection of each box. This segmentation provides detailed information about which specific box has insulation issues while maintaining simple detection operations through standardized independent units.
Solution Approach 2:
Each electrical box performs its own insulation detection through its dedicated detection assembly, enabling self-diagnosis. This self-service approach provides precise fault identification information while keeping the detection operation simple and automated.
Data Source
AI summary
A breaker box system comprises a plurality of breaker boxes, the plurality of breaker boxes not sharing a ground. Each breaker box comprises a housing, a battery cell, and an insulation detection assembly, the battery cell and the insulation detection assembly being disposed in the housing. One end of the insulation detection assembly is connected to a positive electrode of the battery cell, the other end is connected to a negative electrode of the battery cell, and a reference ground of the insulation detection assembly is the housing of the breaker box.