Motor Conical Magnetic Units Segmentation Power Density
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Solution Overview
Problem
Existing motors face challenges in increasing output power without increasing weight and volume, necessitating improved energy conversion efficiency for household and industrial applications.
Innovation Solution
The motor design incorporates a stator and rotor with conical magnetic units and bearings, generating attractive and repulsive forces to enhance energy conversion efficiency and power saving, featuring a stator magnetic conductive structure with silicon steel sheets and a driving circuit board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the size of the motor is directly increased to increase output power, then the output power is improved, but the weight and volume of the motor increase
Solution Approach 1:
The motor is divided into multiple magnetic units (first magnetic unit with first/second magnetic pole surfaces, second magnetic unit with fifth/sixth magnetic pole surfaces) and corresponding bearings (first bearing with first groove, second bearing with second groove). This segmentation allows independent optimization of each magnetic unit's magnetic field distribution, improving overall power conversion efficiency without requiring a proportional increase in total motor size.
Solution Approach 2:
Each magnetic unit and bearing combination is designed with specific local magnetic pole arrangements (alternating magnetic poles on circumferential surfaces) to create optimized magnetic fields in specific regions. The conical groove shapes and alternating magnetic pole configurations ensure that magnetic flux is concentrated and utilized more effectively in critical areas, improving power density without increasing overall motor volume.
2Power
If the size of the motor is directly increased to increase output power, then the output power is improved, but the volume of the motor increases
Solution Approach 1:
The motor is divided into multiple magnetic units (first magnetic unit with first/second magnetic pole surfaces, second magnetic unit with fifth/sixth magnetic pole surfaces) and corresponding bearings (first bearing with first groove, second bearing with second groove). This segmentation allows independent optimization of each magnetic unit's magnetic field distribution, improving overall power conversion efficiency without requiring a proportional increase in total motor size.
Solution Approach 2:
Each magnetic unit and bearing combination is designed with specific local magnetic pole arrangements (alternating magnetic poles on circumferential surfaces) to create optimized magnetic fields in specific regions. The conical groove shapes and alternating magnetic pole configurations ensure that magnetic flux is concentrated and utilized more effectively in critical areas, improving power density without increasing overall motor volume.
3Ease of manufacture
If conventional magnetic units and bearings are used, then the structure is simple, but the energy conversion efficiency is low
Solution Approach 1:
The motor is divided into multiple magnetic units (first magnetic unit with first/second magnetic pole surfaces, second magnetic unit with fifth/sixth magnetic pole surfaces) and corresponding bearings (first bearing with first groove, second bearing with second groove). This segmentation allows independent optimization of each magnetic unit's magnetic field distribution, improving overall power conversion efficiency without requiring a proportional increase in total motor size.
Solution Approach 2:
The bearings are designed with conical grooves (first groove and second groove) that match the conical shapes of the magnetic units. These curved surfaces optimize the magnetic field distribution and contact between magnetic units and bearings, reducing magnetic leakage and improving energy conversion efficiency while maintaining manufacturability through standard conical machining processes.
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 improves energy conversion efficiency and achieves a power saving effect by utilizing conical magnetic units and bearings, allowing the motor to efficiently convert energy while maintaining a compact size.
Implementation Method 1
The first magnetic unit has a first outer surface including a plurality of first magnetic pole surfaces and a plurality of second magnetic pole surfaces which are alternately arranged. Magnetic poles of the first magnetic pole surfaces are different from magnetic poles of the second magnetic pole surfaces.
Implementation Method 2
The motor design incorporates a stator and rotor with conical magnetic units and bearings, generating attractive and repulsive forces to enhance energy conversion efficiency and power saving
Data Source
AI summary
A motor includes a stator, a rotor, and a first bearing. A housing of the stator has a top wall, a bottom wall opposite, a side wall and a first opening in the top wall. A rotating shaft of the rotor has a first magnetic unit having a first outer surface. The first outer surface includes first and second magnetic pole surfaces alternately arranged. The first and second magnetic pole surfaces have different magnetic poles. The first bearing having a first groove is disposed in the first opening. The first magnetic unit is located in the first groove having a first inner surface facing the first outer surface. The first inner surface includes third and fourth magnetic pole surfaces alternately arranged. The third and fourth magnetic pole surfaces have different magnetic pole. The first and third as well as second and fourth magnetic pole surfaces have the same magnetic poles.