Laminated Core Bonding via Magnetic Gap Opening
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Solution Overview
Problem
The existing method of manufacturing laminated cores is inefficient due to the difficulty in applying adhesive to small gaps between steel plates, which prolongs the application step.
Innovation Solution
The method involves laminating electromagnetic steel plates, exciting them in a direction intersecting the lamination direction to increase gaps, and then applying adhesive to these gaps, allowing for easier and more reliable application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive is applied to each steel plate before lamination, then bonding reliability is improved, but manufacturing time increases
Solution Approach 1:
The patent inverts the conventional sequence by first laminating the steel plates and then applying adhesive to the gaps between them, rather than applying adhesive before lamination. This reversal resolves the contradiction by enabling efficient gap application after lamination while maintaining bonding reliability.
Solution Approach 2:
The patent applies preliminary action by causing magnetic repulsion between the steel plates before adhesive application, which automatically creates and maintains gaps between plates. This preliminary gap creation facilitates subsequent adhesive application without requiring manual gap maintenance during the process.
2Productivity
If adhesive is applied to gaps between laminated steel plates, then application efficiency is improved, but gap accessibility deteriorates due to small gap size
Solution Approach 1:
The patent replaces manual mechanical gap creation with magnetic repulsion forces. By utilizing the inherent magnetic properties of the steel plates, gaps are automatically formed and maintained without requiring mechanical tools or manual intervention, thereby improving accessibility despite small gap dimensions.
Solution Approach 2:
The patent changes the physical state of the steel plates by inducing magnetic repulsion, which dynamically maintains optimal gap dimensions during adhesive application. This parameter change (from neutral to magnetically repelled state) ensures gaps remain accessible throughout the process.
3Strength
If steel plates are laminated tightly, then structural integrity is improved, but adhesive application difficulty increases
Solution Approach 1:
The patent introduces dynamic control of gap dimensions through magnetic repulsion. The gaps are maintained at optimal sizes during adhesive application, then can be reduced or eliminated afterward to achieve tight lamination and high structural integrity. This dynamic adjustment resolves the contradiction between application ease and final strength.
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 approach enables efficient adhesive application to the gaps between steel plates, reducing application time and ensuring reliable bonding, while maintaining shape accuracy and handling ease.
Implementation Method 1
the electromagnetic steel plate laminate may be excited in the direction intersecting the lamination direction, and the electromagnetic steel plates may be caused to repel each other, so that the gaps between the electromagnetic steel plates are increased
Data Source
AI summary
A method of manufacturing a laminated core in which an adhesive can be easily applied to gaps between laminated electromagnetic steel plates is provided. A method of manufacturing a laminated core according to the present disclosure includes a first step, a second step, and a third step. In the first step, an electromagnetic steel plate laminate is formed by laminating a plurality of electromagnetic steel plates in a lamination direction. In the second step, the electromagnetic steel plate laminate is excited in a direction intersecting the lamination direction. In the third step, an adhesive is applied to gaps between the plurality of electromagnetic steel plates in the electromagnetic steel plate laminate.