Secondary Battery Surface Inspection for Stable Sidewall Scanning
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Solution Overview
Problem
Existing secondary battery inspection systems struggle to accurately inspect the entire outer appearance of larger and more stable batteries, particularly the side surfaces, leading to inefficiencies and reduced accuracy.
Innovation Solution
A system comprising a transfer device, top and bottom inspecting device, side surface inspecting device, and rotating device, utilizing 3D cameras and mirrors to inspect the entire battery surface, including a rotating mechanism to ensure all surfaces are examined efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the cylinder type secondary battery is inspected while rotating in an upright state, then the side surface inspection is performed, but the inspection accuracy decreases and stability decreases during transfer
Solution Approach 1:
The patent inverts the traditional inspection approach by placing the battery in a horizontal state instead of upright rotation. The inspection device moves along the battery's longitudinal axis in a horizontal configuration, which stabilizes the battery during transfer while maintaining comprehensive side surface inspection capability through linear scanning rather than rotational scanning.
2Quantity of substance
If the size and capacity of the cylinder type secondary battery increase, then the energy storage increases, but the stability during transfer decreases and inspection accuracy decreases
Solution Approach 1:
The patent adapts the inspection system to dynamic handling of larger batteries by using a horizontal transfer mechanism that can accommodate varying battery sizes. The linear scanning approach allows the inspection device to adjust its scanning parameters and positioning dynamically based on battery dimensions, maintaining stability and accuracy for increased battery capacities.
3Ease of operation
If the battery is gripped for inspection, then the inspection can be performed, but the inspection of the outer appearance is not properly carried out on the portion at which the battery is gripped
Solution Approach 1:
The patent segments the inspection process into multiple scanning positions along the battery's longitudinal axis. By dividing the side surface inspection into multiple sections that are scanned sequentially as the device moves horizontally, the system ensures complete coverage of the entire battery surface including areas that would be obscured by gripping points in traditional upright rotation methods.
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 system provides precise inspection of the entire secondary battery surface, minimizing false positives and improving stability during transfer, enhancing the accuracy and efficiency of the inspection process.
Implementation Method 1
a side surface inspecting device which is disposed at a second inspection position and inspects a side surface of the secondary battery and the secondary battery for swelling
Data Source
AI summary
An outer appearance inspection system, which inspects an outer appearance of a secondary battery, according to the present invention includes a transfer device, which transfers the secondary battery according to an inspection position, a top and bottom inspecting device, which is disposed at a first inspection position and inspects an upper portion and a lower portion of the secondary battery, a side surface inspecting device, which is disposed at a second inspection position and inspects a side surface of the secondary battery and the secondary battery for swelling, and a rotating device which is disposed at the second inspection position and rotates the secondary battery, wherein the side surface inspecting device inspects the side surface of the secondary battery and the secondary battery for swelling in a state in which the secondary battery lies on the transfer device.