Segmented Stator Core Radial Winding Teeth Redundancy
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Solution Overview
Problem
Redundant electric motors require significant installation space due to the need for independent stator windings to ensure continuous operation in case of faults, leading to a bulky design.
Innovation Solution
A stator core composed of multiple segments with radially aligned winding teeth, where no straight teeth from different segments intersect, allowing for a compact and robust design by preventing electrical and magnetic crosstalk through spatial nesting and alternating arrangements of winding teeth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If independent stator windings are used to ensure continuous operation in case of faults, then reliability is improved, but installation space increases significantly
Solution Approach 1:
The stator core is divided into multiple stator core segments, each with its own winding teeth. This segmentation allows the stator to be constructed from modular units that can be independently manufactured and assembled, enabling redundancy while reducing overall space requirements compared to traditional independent winding arrangements.
Solution Approach 2:
The stator core segments are arranged in a nested configuration where segments are positioned at different radial distances from the rotation axis. This nesting approach allows multiple winding sets to be compactly arranged within a smaller volume, maintaining reliability through redundancy while significantly reducing installation space.
2Object-generated harmful factors
If stator core segments are arranged with winding teeth that do not intersect along any straight line parallel to the rotation axis, then crosstalk is reduced, but manufacturing complexity increases
Solution Approach 1:
Each stator core segment is designed with specific local characteristics, including the radial orientation of winding teeth and their specific angular positions. This local quality approach ensures that winding teeth from different segments do not align along straight lines parallel to the rotation axis, thereby minimizing crosstalk while maintaining manageable manufacturing complexity through standardized segment designs.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design achieves a compact and robust stator core that minimizes crosstalk and allows for efficient assembly, maintaining motor functionality with reduced space requirements while ensuring redundancy.
Implementation Method 1
A stator core (2) that defines a rotation axis (9) for a rotor (10) and is composed of several stator core segments (1, 6), each of which has several radially oriented winding teeth (3, 11)
Data Source
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AI summary
The invention relates to a stator core (2) that defines an axis of rotation (9) for a rotor (10) and that consists of several stator core segments (1, 6), each of which has several radially oriented winding teeth (3, 11). The stator core (2) is assembled such that all winding teeth (3, 11) of all stator core segments (1, 6) are straight winding teeth (3, 11) and extend in a radial direction.