Battery Pack Airtightness Testing with Adaptive Pressing
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Solution Overview
Problem
Existing methods for checking the air tightness of battery packs require different test devices for different types, leading to low changeover efficiency on production lines.
Innovation Solution
An integrated test system with a control apparatus, scanning apparatus, and pressing apparatus that automatically identifies and presses battery packs, performing air tightness checks without manual operation, ensuring accurate and efficient testing across various types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If different test devices are used for different types of battery packs, then testing accuracy is maintained, but changeover efficiency deteriorates
Solution Approach 1:
The patent implements a universal test device that can handle multiple types of battery packs through automated identification and adaptive pressing mechanisms. The scanning apparatus reads identification codes to determine battery pack types, and the pressing apparatus automatically adjusts its pressing positions and forces based on the identified type, allowing one device to perform multiple testing functions without manual reconfiguration.
Solution Approach 2:
The pressing apparatus is designed with dynamic adjustment capabilities, where pressing positions, pressing forces, and pressing durations are automatically adjusted based on the battery pack type identified by the scanning apparatus. This dynamic adaptation enables the same hardware to optimize its testing parameters for different battery pack configurations, maintaining testing accuracy while eliminating changeover downtime.
2Device complexity
If manual operation is used for battery pack testing, then device complexity is reduced, but check rate deteriorates
Solution Approach 1:
The test device implements self-service through automated battery pack identification and testing parameter selection. The scanning apparatus automatically reads the identification code on each battery pack, the control system automatically determines the appropriate testing parameters based on the identified type, and the pressing apparatus automatically executes the testing sequence without manual intervention, thereby increasing check rate while maintaining operational simplicity through automation.
Solution Approach 2:
The patent replaces manual mechanical operations with automated systems. The scanning apparatus uses optical or electromagnetic fields to read identification codes instead of manual visual inspection. The control system uses automated logic to determine testing parameters instead of manual decision-making. The pressing apparatus uses automated mechanical actuation instead of manual pressing, thereby increasing check rate while keeping the interface simple.
3Productivity
If automated identification and pressing are implemented, then check rate increases, but device complexity increases
Solution Approach 1:
The patent merges multiple functions into an integrated test device: the scanning apparatus for identification, the control system for parameter determination, and the pressing apparatus for execution are combined into a coordinated system. This merging allows automated identification and pressing to increase check rate while managing complexity through functional integration rather than separate independent systems.
Solution Approach 2:
The control system acts as an intermediary between the scanning apparatus and the pressing apparatus. It receives identification information from the scanner, processes it to determine appropriate testing parameters, and translates these into control signals for the pressing apparatus. This intermediary layer manages system complexity by providing a clear interface and coordination mechanism between the automated components.
Data Source
AI summary
An air tightness check method and a test system are disclosed. The test system includes a control apparatus, a scanning apparatus, a pressing apparatus and a check apparatus. The air tightness check method includes: in response to a battery pack flowing into an air tightness testing station, controlling, by the control apparatus, the scanning apparatus to identify the battery pack to obtain parameter information of the battery pack, where the parameter information of the battery pack represents basic attributes of the battery pack and a position of the battery pack in the air tightness testing station; controlling, by the control apparatus based on the parameter information of the battery pack, the pressing apparatus to press down the battery pack; and controlling, by the control apparatus, the check apparatus to check air tightness of the pressed battery pack.