Magnetic Master Jig for Precise Battery Foreign Matter Inspection
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Solution Overview
Problem
Existing secondary battery foreign matter inspection devices face challenges in accurately and efficiently inspecting for foreign matter due to issues with reproducing small-sized foreign matter and interference from materials and colors, leading to inaccurate measurements.
Innovation Solution
A master jig device with a jig body, magnetic force supply part, and current collection part is used to securely attach a to-be-inspected member replicating foreign matter, ensuring accurate inspection by magnetic force fixation and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single master jig device is used to inspect multiple battery models, then production and storage costs are reduced, but the device must accommodate varying sizes and configurations of different battery models
Solution Approach 1:
The master jig device is designed with a universal structure that can accommodate multiple battery models. The jig body includes adjustable components and standardized interfaces that allow the same device to inspect different battery sizes and configurations, eliminating the need for separate inspection devices for each model variant.
Solution Approach 2:
The master jig device is divided into modular components including a jig body, magnetic force supply part, and current collection part. These segmented components can be independently adjusted or reconfigured to match different battery models, providing both cost efficiency through reuse and adaptability through modular adjustment.
2Measurement precision
If magnetic force is used to fix the to-be-inspected member to the current collection part, then positioning accuracy and measurement precision are improved, but the magnetic force supply part adds structural complexity
Solution Approach 1:
The patent replaces traditional mechanical fixing methods (such as clips, adhesives, or fasteners) with a magnetic force supply part that uses magnetic attraction to secure the to-be-inspected member. This substitution improves positioning accuracy by eliminating mechanical tolerances and potential slippage, while the magnetic component itself is designed to be relatively simple in structure.
Solution Approach 2:
The magnetic force supply part acts as an intermediary between the jig body and the to-be-inspected member. It provides a non-contact or minimal-contact fixing mechanism that achieves precise positioning without complex mechanical linkages, thereby improving measurement precision while keeping the added structural complexity manageable.
3Reliability
If the to-be-inspected member is positioned outside the magnetic power supply part, then interference with the magnetic field is reduced, but the distance for magnetic force fixation increases
Solution Approach 1:
The current collection part is designed with localized magnetic field zones that are concentrated at specific positions outside the magnetic power supply part. This local concentration of magnetic field strength ensures reliable fixation of the to-be-inspected member at the optimal position, balancing the need to avoid magnetic interference with the requirement for sufficient magnetic force.
Solution Approach 2:
Instead of positioning the to-be-inspected member directly adjacent to the magnetic power supply part, the design utilizes the spatial dimension by placing it at an optimized distance outside the magnetic part. This dimensional adjustment reduces magnetic field interference while maintaining adequate magnetic force through proper positioning in three-dimensional space.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The master jig device enables quick and precise inspection of foreign matter inspection devices, reducing production and storage costs by using a single jig for multiple models, and improving measurement accuracy by replicating foreign matter's size and material.
Implementation Method 1
a magnetic force supply part on at least one of one side or another side in the longitudinal direction of the jig body and configured to generate a magnetic force
Data Source
AI summary
A master jig device for a secondary battery foreign matter inspection device configured to inspect whether a foreign matter inspection device is operating normally. The master jig device includes a jig body having a shape corresponding to a secondary battery; a magnetic force supply part on at least one of one side or another side in the longitudinal direction of the jig body and configured to generate a magnetic force; a current collection part outside the magnetic power supply part; and a to-be-inspected member fixed to the outside of the current collection part by the magnetic force of the magnetic force supply part and that is configured to be measured as foreign matter by a foreign matter inspection device.