Motor Interphase Insulation Paper Parting Strip Design
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Solution Overview
Problem
The existing method of automatically inserting interphase insulation paper between coil ends in motors results in a decline of the space factor within the winding, as the connecting parts of the insulation paper remain inside the slot, increasing costs and operational inefficiencies.
Innovation Solution
A motor design and production method that includes interphase insulation paper with a parting strip between adjacent windings, which is sandwiched and fixed by collapsing the windings in a circumferential direction, allowing for automatic insertion without reducing the space factor, using a stator core with laminated electromagnetic steel sheets and multiple slots for three-phase windings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If interphase insulation paper with connecting parts is automatically inserted between coil ends, then insertion efficiency is improved, but the space factor of the winding declines
Solution Approach 1:
The connecting parts of the interphase insulation paper are extracted from the slot interior and repositioned to the slot opening. This allows the insulation paper to maintain its connecting function while eliminating the space occupation inside the slot, thereby resolving the contradiction between automated insertion efficiency and winding space factor.
2Reliability
If manual labor is used to insert interphase insulation paper, then insulation performance is improved, but manufacturing cost increases
Solution Approach 1:
The interphase insulation paper is designed with self-fixing characteristics where the parting strip automatically positions itself between adjacent windings during the insertion process. This self-service mechanism ensures proper insulation placement without requiring manual intervention, thereby maintaining insulation performance while reducing manufacturing costs through automation.
3Stability of the object's composition
If connecting parts of insulation paper remain inside the slot, then insulation continuity is improved, but winding space is reduced
Solution Approach 1:
The connecting parts of the insulation paper are repositioned from the interior dimension (inside the slot) to the exterior dimension (at the slot opening). This dimensional change allows the insulation continuity to be maintained through proper positioning at the opening, while the winding space inside the slot is preserved for copper conductors.
Data Source
AI summary
Provided are a motor and method for producing the motor that automatically insert interphase insulation paper. Interphase insulation paper (7) has a parting strip (8) that partitions the boundary between windings (5) that are adjacent in the circumferential direction when inserted into coil ends (6). The parting strip (8) is sandwiched between the adjacent windings (5, 5).