Sectioned Stator Multiphase Motor Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The assembly of large and high-torque motors is challenging due to difficulties in stator winding, particularly in motor fabrication, where existing technologies struggle with efficiently producing high torque at low speeds while maintaining a compact design.
Innovation Solution
A multiphase motor design featuring a sectioned stator with arcuately arranged stator sections, each including a yoke and radially extending teeth, wound with electrically conductive wire windings for all power phases, allowing for efficient torque production and manageable assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the stator is divided into multiple sectioned parts, then the ease of manufacture and assembly is improved, but the device complexity increases
Solution Approach 1:
The stator is divided into multiple sectioned parts, each containing a subset of the total windings for all power phases. This segmentation allows each section to be manufactured and wound independently, significantly improving ease of manufacture and assembly while the sections are later assembled together to form the complete stator structure.
2Power
If the motor is designed for high torque at low speeds, then the power output is improved, but the manufacturing difficulty increases
Solution Approach 1:
The stator sections can be manufactured separately with optimized winding configurations for high torque production, then assembled together. This approach enables the motor to achieve high torque at low speeds through proper winding design in each section while avoiding the manufacturing difficulties of building the entire high-torque stator as a single piece.
Solution Approach 2:
Multiple stator sections, each contributing to the overall torque production, are assembled together to achieve the total high torque output. The combined effect of all sections produces the desired high torque at low speeds while each individual section remains manufacturable with standard equipment.
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
The design enables high torque production at low speeds with a compact motor size, achieving efficiencies of at least 70% and facilitating easier assembly by dividing the stator into manageable sections, thus overcoming the challenges of large motor assembly.
Implementation Method 1
The stator includes a plurality of electrically conductive wire windings. Each of the windings corresponds with a respective power phase.
Data Source
AI summary
A multiphase motor is provided. The motor includes a rotor rotatable about an axis and a sectioned stator. The sectioned stator includes one or more stator sections. Each stator section has a core section including a yoke and a plurality of arcuately spaced apart teeth that extend generally radially from the yoke. The stator includes a plurality of electrically conductive wire windings. Each of the windings corresponds with a respective power phase. Each stator section is wound with each of the windings such that each stator section includes windings for all of the power phases.