Unit Cell Transfer Alignment Correction Using Multi-Stage Sensing
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Solution Overview
Problem
Existing transfer apparatuses for unit cells in battery manufacturing struggle to precisely detect and correct alignment errors during the transfer process, leading to inefficiencies and potential defects in electrode assembly production.
Innovation Solution
The proposed transfer apparatus includes an adsorbing part, a rotor part with rotary wings and adsorbing plates, and multiple sensing parts to detect the alignment of unit cells. The controller adjusts the adsorption angle and position of the adsorbing plate based on the detected alignment, ensuring precise transfer and alignment correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional transfer apparatus is used to transfer unit cells, then the transfer process can be completed, but the alignment precision of unit cells cannot be precisely detected and corrected
Solution Approach 1:
The first sensing part detects the alignment of the unit cell before the rotor part transfers it. By performing alignment detection in advance (preliminary action), the system can identify misalignment issues before they affect the transfer process, enabling proactive correction rather than reactive adjustment.
Solution Approach 2:
The sensing parts provide real-time feedback on unit cell alignment status to the controller. This feedback mechanism enables the controller to adjust the adsorption angle and position of the adsorbing plate based on detected alignment deviations, creating a closed-loop control system that continuously optimizes alignment precision.
2Measurement precision
If multiple sensing parts are added to detect alignment at different positions, then the alignment detection capability is improved, but the device complexity increases
Solution Approach 1:
The alignment detection function is segmented into multiple sensing parts positioned at different locations (first sensing part before transfer, second sensing part below the unit cell, third sensing part at release position). Each sensing part handles a specific detection task at a specific stage, dividing the complex measurement problem into manageable segments that can be independently optimized.
Solution Approach 2:
The sensing parts serve multiple functions: detecting alignment status, providing feedback for controller adjustment, and enabling quality control at different stages. This multi-functionality reduces the need for separate dedicated components for each function, thereby managing complexity while enhancing detection capability.
3Manufacturing precision
If the adsorption angle and position are adjusted based on detected alignment, then the transfer precision is improved, but the control system complexity increases
Solution Approach 1:
The adsorption angle and position of the adsorbing plate are made dynamically adjustable rather than fixed. The controller modifies these parameters in real-time based on feedback from the sensing parts, allowing the system to adapt to varying alignment conditions and maintain high transfer precision across different operating scenarios.
Solution Approach 2:
The control system adjusts critical parameters (adsorption angle and position) based on detected alignment deviations. By changing these parameters dynamically, the system compensates for misalignment without requiring complex mechanical reconfiguration, achieving high precision through parameter optimization rather than structural complexity.
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
This solution enables advanced detection and correction of unit cell alignment before transfer, significantly improving the precision and efficiency of the transfer process, thereby enhancing the production yield of electrode assemblies.
Implementation Method 1
an adsorbing part, which adsorbs the unit cell disposed in the magazine
Data Source
AI summary
An apparatus for transferring a unit cell according to an embodiment of the present invention may allow a first sensing part to detect alignment of the unit cell before a rotor part adsorbs the unit cell, and correct the alignment of the unit cell on the basis of the detected information. Accordingly, the alignment detection and correction operations may be performed in advance to more precisely correct the alignment of the unit cell. In addition, in the apparatus for transferring the unit cell, a first sensing part to a third sensing part may be disposed at positions, respectively, so that an alignment correction range is secured, and the discarded unit cells are reduced to lead an increase in production of electrodes.