Stator Insulator Assembly for Axial Insertion Without Tilting
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Solution Overview
Problem
Existing electrical insulator assemblies for concentrated winding motors require tilting and are time-consuming to install, with a risk of damage during the process, due to the orientation of recessed parts on the stator core flanges.
Innovation Solution
The electrical insulator assemblies are designed with recessed parts that are open to the second side in the axial direction, allowing for straightforward insertion of insulation members without tilting, and include projections to prevent movement and enhance dielectric strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the recessed parts are oriented perpendicular to the axial direction (conventional design), then the insulator assembly provides adequate insulation, but the installation process requires tilting and is time-consuming with risk of damage
Solution Approach 1:
The recessed parts are inverted from the conventional orientation (perpendicular to axial direction) to face the axial direction. This inversion allows the insulation member to be inserted axially without tilting, eliminating installation complexity and reducing time loss.
2Reliability
If the recessed parts are open axially (new design), then installation is simplified and time is reduced, but additional structural features are required to prevent movement and ensure reliability
Solution Approach 1:
Projections are added to the insulator assembly that preliminarily prevent axial movement of the insulation member before final assembly. This preliminary constraint ensures reliability is maintained while allowing the simplified axial insertion method.
Data Source
AI summary
Electrical insulator assemblies fitted onto stator teeth each have a first flange and a second flange. An outer peripheral surface of the first flange has first and second recessed parts on first and second sides of a through hole in a circumferential direction. The first recessed part is open radially outwardly to the first side in the circumferential direction and to a second side in an axial direction. The second recessed part is open radially outwardly to the second side in the circumferential direction and to the second side in the axial direction. The first flange has a projection formed on a side surface on the first side in the circumferential direction and protruding to the first side in the circumferential direction and a projection formed on a side surface on the second side in the circumferential direction and protruding to the second side in the circumferential direction.