Lamination Stack Compression via Weight Distribution Plates
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Solution Overview
Problem
The assembly of dynamoelectric machine laminations often results in undesirable waves due to burrs and trapped air, which are not effectively addressed by existing compression methods.
Innovation Solution
An apparatus and method utilizing weight distribution plates and pressing plates to apply a compressive force to the lamination stack, ensuring even pressure distribution and removal of trapped air and burrs, comprising weight distribution plates placed on one end of the stack with pressing plates on top, facilitating manual handling and adjustable force application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If manual assembly of laminations is performed, then the lamination stack can be assembled, but undesirable waves are caused by burrs and trapped air
Solution Approach 1:
The patent applies preliminary compression action by placing weight distribution plates and pressing plates on the lamination stack before final assembly completion. This preliminary action compresses the laminations to remove waves caused by burrs and trapped air, ensuring flatness is achieved before the stack is fully installed in the stator core.
Solution Approach 2:
The patent introduces weight distribution plates and pressing plates as intermediary elements between the compression force and the lamination stack. These plates distribute the compressive force evenly across the lamination surface, preventing localized deformation while effectively removing waves and trapped air during the compression process.
2Manufacturing precision
If compression force is applied to remove waves and trapped air, then lamination flatness improves, but device complexity increases
Solution Approach 1:
The patent segments the compression apparatus into distinct functional components: weight distribution plates that spread the compressive force evenly, and pressing plates that apply the compression force. This segmentation allows each component to perform its specific function efficiently while keeping the overall apparatus simple and manageable.
Solution Approach 2:
The patent uses simple flat plates as compression elements, copying the basic geometric form rather than using complex curved or shaped components. This approach achieves the desired compression function while minimizing device complexity, as the plates can be easily manufactured and positioned.
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 solution effectively compresses the lamination stack, removing waves and burrs, ensuring a stable and uniform assembly of the dynamoelectric machine core, improving the structural integrity and efficiency of the lamination process.
Implementation Method 1
A compressive force is applied to the lamination stack via the plurality of weight distribution plates and the plurality of pressing plates
Data Source
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AI summary
An apparatus is provided for compressing the lamination stack (200) for a dynamoelectric machine. The apparatus includes a plurality of weight distribution plates (400) and a plurality of pressing plates (500). The plurality of weight distribution plates (400) are placed on one end of the lamination stack (200) of the dynamoelectric machine. The plurality of pressing plates (500) are placed on the plurality of weight distribution plates (400). A compressive force is applied to the lamination stack (200) via the plurality of weight distribution plates (400) and the plurality of pressing plates (500).