Laminated Core Distinguishing Mark for Rotational Displacement Detection
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Solution Overview
Problem
Existing methods for manufacturing laminated cores, such as bulk stacking and block stacking, face challenges in ensuring accurate alignment and preventing rotational displacement during the lamination process, particularly due to thickness variations in metal sheets and external impacts.
Innovation Solution
A laminated core with a distinguishing mark on its peripheral surface, formed by marking lines that maintain specific separation distances and asymmetrical positions, allowing for easy identification and correction of rotational displacement and alignment issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If bulk stacking or block stacking methods are used to manufacture laminated cores, then manufacturing efficiency is improved, but alignment accuracy and prevention of rotational displacement deteriorate due to thickness variations and external impacts
Solution Approach 1:
The patent applies preliminary action by forming distinguishing marks on individual core members before lamination. These marks serve as pre-established reference features that enable subsequent detection and correction of rotational displacement, allowing the manufacturing process to maintain both efficiency and precision
2Ease of manufacture
If core members are laminated without distinguishing marks, then the manufacturing process is simpler, but detection and correction of rotational displacement becomes difficult
Solution Approach 1:
The patent uses visual marking (analogous to color changes principle) by applying distinguishing marks such as paint, ink, or colored stickers on core members. These visual features provide easy-to-detect references for identifying rotational displacement without significantly complicating the manufacturing process
3Measurement precision
If distinguishing marks are formed on peripheral surfaces of laminated core, then detection of rotational displacement is improved, but additional manufacturing steps are required
Solution Approach 1:
The distinguishing marks are formed on core members before lamination, which is the preliminary action. This timing allows the marks to be easily applied to individual components without requiring complex post-lamination operations, thus improving detection capability while minimizing additional process complexity
Data Source
AI summary
A laminated core includes: a laminate in which 1st to Nth (N is a natural number of two or more) core members are laminated in this order; and a distinguishing mark formed with a marking that is placed on a peripheral surface of the laminate so as to be continuously positioned over all of the 1st to Nth core members.