Stator Guide Groove Structure for Stable Winding Handling
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Solution Overview
Problem
Conventional stators with ring-shaped connecting portions offset in the axial direction lead to increased size, and when these connecting portions are omitted, the separated core elements cannot maintain their positions or winding shapes during separate handling.
Innovation Solution
A stator design with separate insulators and guide grooves that include retaining portions to secure the windings, preventing detachment and maintaining the shape of the windings without increasing the stator's axial size by omitting the connecting portion between insulators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If ring-shaped connecting portions are provided between insulators to maintain stability during separate handling, then the stator component rigidity is secured, but the axial size of the stator increases
Solution Approach 1:
The patent removes the ring-shaped connecting portions that were previously used to connect insulators, thereby eliminating the axial size increase while implementing an alternative solution (guide grooves with retaining portions) to maintain stability during separate handling of stator components
Solution Approach 2:
The patent introduces guide grooves with retaining portions as an intermediary structure within the insulators to secure windings and maintain stability during handling, replacing the function previously served by the connecting portions without requiring additional axial space
2Ease of operation
If ring-shaped connecting portions are provided to ensure stable shape of stator components, then the components can be separately handled with ease, but the device complexity increases
Solution Approach 1:
The patent eliminates the ring-shaped connecting portions, simplifying the stator structure by removing an entire subsystem while maintaining the ease of separate handling through the guide groove mechanism integrated into the insulators
Solution Approach 2:
The patent combines the guidance and retention functions directly into the insulator structure through guide grooves with retaining portions, eliminating the need for separate connecting portions and reducing overall device complexity
Data Source
AI summary
In a V-phase stator component in which a plurality of V-phase insulators are separate from each other, the V-phase insulator corresponding to a second V-phase winding includes a flange portion which is provided with a first guide groove for guiding a winding start portion led out of the second V-phase winding and connected to a crossover wire portion, and a second guide groove for guiding a winding end portion led out of the second V-phase winding and connected to a crossover wire portion. The first and second guide grooves are provided with respective retaining portions formed so that an opening width is smaller than the diameter of the conductor wire.