Split-Core Stator Wire Routing for Shorter Axial Length
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing split core type stators face a challenge in achieving a short axial length while accommodating crossover wires that cross each other without interference, which can lead to increased axial length if the connecting portions are positioned to avoid interference.
Innovation Solution
The stator design includes a guiding portion on the linking portion that extends radially outward, allowing crossover wires connected to winding-end portions to be held on the opposite axial side of the linking portion, thereby avoiding interference and maintaining a compact axial length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If crossover wires are positioned to avoid interference, then interference between wires is eliminated, but axial length increases
Solution Approach 1:
The patent positions crossover wires on opposite axial sides of the linking portion, utilizing the axial dimension to separate wires that would otherwise interfere in the radial plane. This dimensional separation allows wires to cross without contact while maintaining compact axial length
Solution Approach 2:
The linking portion acts as an intermediary structure that holds and positions the crossover wires on opposite axial sides. This mediator component enables wire separation and interference prevention without requiring increased overall axial length
2Manufacturing precision
If guiding portion is added to holding wires, then wire position control is improved, but device complexity increases
Solution Approach 1:
The guiding portion is integrated into the linking portion structure, combining the functions of mechanical connection and wire guidance into a single component. This merger reduces overall device complexity while maintaining precise wire position control
Solution Approach 2:
The linking portion serves multiple functions: it connects insulating portions mechanically and simultaneously acts as a guide for positioning crossover wires. This multi-functionality reduces the need for separate guiding components, simplifying the overall structure
Data Source
AI summary
A crossover wire is led out from a winding portion in a direction in which the winding portion is tightened. The crossover wire connected to a winding-end portion is crossed at a connecting portion between an insulating section and a linking portion such that it is located on one axial side of the linking portion with respect to the crossover wire connected toa winding-start portion. The crossover wire connected to the winding-end portion is held by a guiding portion so as to pass through the other axial side of the linking portion so that the position of a held portion held by a guiding portion is lowered to the position of the crossover wire connected to the winding-start portion.