Battery Inspection Circuit With Pathway Switching Automation

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Solution Overview

Problem

The existing battery inspection processes are manual and cannot be automated, leading to inefficiencies and the risk of missed tests.

Innovation Solution

An inspection circuit and method that includes a plurality of inspection devices and pathway switching circuits, allowing for automated connection of inspection devices to test terminals based on inspection signals, thereby enabling automated battery inspection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual inspection process is used, then device complexity is reduced, but productivity is low and inspection accuracy is compromised

Engineering Contradiction:
Improveinspection efficiencyVSAvoidinspection circuit complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The inspection circuit is segmented into multiple independent pathway switching circuits, each responsible for connecting specific inspection devices to test terminals. This modular segmentation allows automated inspection functionality to be added without creating a monolithic complex system, as each segment can be independently controlled and maintained.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The pathway switching circuits serve multiple functions: they route inspection signals from different inspection devices to appropriate test terminals, enable automated switching between inspection modes, and provide a unified interface for both manual and automated inspection operations. This multi-functionality reduces the need for separate dedicated circuits for each inspection type.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Extent of automation

If automated inspection is implemented, then productivity increases, but device complexity increases

Engineering Contradiction:
Improveinspection automationVSAvoidinspection circuit complexity
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The pathway switching circuits incorporate dynamic switching capabilities that allow the inspection circuit to automatically reconfigure connections based on inspection requirements. The switching circuits can dynamically connect different inspection devices to test terminals under test control, enabling automated inspection sequences without requiring a fixed complex wiring arrangement.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The pathway switching circuits act as intermediaries between the inspection devices and test terminals, mediating the connection and signal flow. This intermediary layer simplifies the overall system architecture by providing a controlled interface that manages the complexity of automated switching, rather than directly connecting all devices to all terminals.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Measurement precision

If multiple inspection devices are connected, then measurement precision improves, but device complexity increases

Engineering Contradiction:
Improveinspection accuracyVSAvoidinspection circuit complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

Each inspection device is connected through its own dedicated pathway switching circuit segment, which segments the complex multi-device connection into manageable independent paths. This segmentation allows multiple inspection devices to operate simultaneously with high measurement precision while the overall complexity is managed through modular organization of the switching circuits.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4517350A1Test circuit and method
Publication Date: 2025.03.05 CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
  • EP4517350A1 patent drawingFigure 1
  • EP4517350A1 patent drawingFigure 2
  • EP4517350A1 patent drawingFigure 3a

AI summary

This application discloses an inspection circuit and method, belonging to the field of battery inspection technologies. According to this application, a plurality of inspection devices and a plurality of pathway switching circuits are provided in an inspection circuit. Input ends of the pathway switching circuits are respectively connected to different test lines. The test lines are connected to a test terminal corresponding to a battery cell under test. Output ends of the pathway switching circuits are respectively connected to the plurality of inspection devices. The pathway switching circuit is configured to connect, according to an inspection signal, an inspection device corresponding to the inspection signal and a test terminal corresponding to the battery cell under test. The inspection device is configured to obtain an inspection result of the battery cell under test.