Stator Core Positioning Apparatus with Engager and Pressers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for positioning and fixing stator cores in electrical machines face challenges with positional misalignment, leading to inefficient insertion of electrical conductors and potential damage to the stator core.
Innovation Solution
A method and apparatus using a plurality of positioners that include an engager and a sub-engager to preliminarily and mainly position and fix the stator core, ensuring correct alignment and preventing phase shifts, with the engager applying a larger pressing force than the sub-engager to maintain stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If only a single positioning mechanism is used for the stator core, then the device complexity is reduced, but the positioning precision and stability are insufficient leading to misalignment
Solution Approach 1:
The positioning mechanism is divided into multiple independent positioners (first positioner, second positioner, third positioner, fourth positioner) that can be distributed around the stator core. Each positioner independently positions a specific region, and their combined action achieves comprehensive precise positioning without requiring a single complex positioning system
Solution Approach 2:
The positioners are configured to perform preliminary positioning of the stator core before the electrical conductor insertion process begins. This preliminary positioning ensures the stator core is correctly aligned with the slots, preventing misalignment during the actual insertion operation
2Reliability
If the positioning mechanism applies insufficient pressing force, then the stator core may shift during insertion, but excessive pressing force may deform the stator core or damage the electrical conductor
Solution Approach 1:
Different positioners apply different pressing forces to different regions of the stator core based on local requirements. The first and second positioners apply greater pressing forces to opposite regions to prevent major shifts, while the third and fourth positioners apply lighter forces to adjacent regions to fine-tune positioning and prevent deformation
Solution Approach 2:
The pressing force parameters are dynamically adjusted during the positioning process. The positioners can vary the magnitude of pressing forces applied to different regions of the stator core, optimizing the balance between maintaining positioning stability and preventing damage to the stator core and electrical conductor
3Productivity
If the stator core positioning is not precisely controlled, then the insertion process may be repeated, reducing productivity, but implementing precise control requires more complex positioning mechanisms
Solution Approach 1:
Each positioner is designed with multi-functionality, serving both as a positioning element and a pressing element. The positioners can independently adjust their positions and pressing forces, allowing a single positioning mechanism to handle multiple positioning requirements simultaneously, thereby improving insertion efficiency without proportionally increasing device complexity
Solution Approach 2:
The positioning mechanism performs preliminary positioning of the stator core before the electrical conductor insertion begins. This preliminary action ensures that the stator core is correctly aligned with all slots, preventing the need to repeat the insertion process and thereby improving productivity
Data Source
AI summary
A positioning and fixing apparatus that fixes a position of a stator core includes a plurality of positioners that are displaced so as to approach or separate from the stator core, by a positioner displacing unit. One of the positioners is an engager that engages with a first tab section being an engaging section. First, the engager engages with the first tab section, and then, pressers being the remainder of the positioners position a certain region of the stator core.