Motor Stator Arched Bridge Section Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional motor stators suffer from magnetic field interference due to narrow bridge abutments at the ends of arched bridge sections, which limits the magnetic field pass space and affects efficiency.
Innovation Solution
The motor stator structure features arched bridge sections that extend along two adjacent sides of a parallelogram or other shapes, positioned outside the range of the enlarged tooth root sections, to increase the magnetic field pass space and avoid interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the arched bridge section is formed with a conventional arched shape, then the magnetic field cutting function is enhanced and magnetic loss is lowered, but the bridge abutments become narrow which interferes with the magnetic field
Solution Approach 1:
The arched bridge section is designed to extend in a direction oblique to the radial direction of the stator, creating a spatial configuration that simultaneously achieves magnetic field cutting in one dimension while providing sufficient bridge abutment width in another dimension. This oblique extension resolves the contradiction by utilizing dimensional orientation to satisfy both functional requirements.
2Loss of energy
If the arched bridge section uses a conventional shape, then the magnetic field cutting effect is achieved, but the space at the ends of the arched bridge section is limited
Solution Approach 1:
By extending the arched bridge section obliquely rather than radially, the design increases the available space at the bridge abutments while maintaining the magnetic field cutting function. This dimensional change allows both the magnetic loss reduction and sufficient end space requirements to be satisfied simultaneously.
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 configuration enhances the anti-interference effect, maintaining the magnetic field cutting function while optimizing electrical efficiency by enlarging the space at the ends of the arched bridge sections.
Implementation Method 1
when current passes the windings wound around the stator 1, the current will pass through the arched bridge section 3 to cut the adjacent magnetic field
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
A motor stator structure includes multiple teeth 20, 20', 20" and multiple arched bridge sections 30, 30', 30" respectively connected between the tooth roots 21 of the adjacent teeth. Each of the arched bridge sections 30, 30', 30" has an arched section 31, 31' extending along two adjacent sides of a predetermined parallelogram. The motor stator structure further includes multiple enlarged sections a respectively positioned at the tooth roots of the teeth 20, 20', 20". Each of the arched bridge sections 30, 30', 30" is positioned outside the range of the corresponding enlarged section a. The motor stator structure is composed of multiple small stators 10" stacked on each other. At least two punched splits 40" are respectively positioned between the tooth roots of two adjacent teeth 20" to separate the adjacent teeth 20". The space of two ends of the arched bridge section is enlarged to increase the pass space of magnetic field.