Asymmetric Magnetic Stator Layout for Forward-Biased Rotor Torque
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Solution Overview
Problem
Existing technologies have not successfully utilized permanent magnets as a direct source of usable power in electric motors, despite attempts to leverage their magnetic properties for power generation.
Innovation Solution
A 3-phase brushless motor with a rotor equipped with four strong, permanent neodymium magnets arranged at 90 degrees, interacting with an asymmetric magnetic stator angled between 45 and 90 degrees, which creates a region of magnetic forward-biased asymmetry, allowing for increased rotor speed and torque generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If permanent magnets are used as direct power source in motor rotor, then power generation capability is improved, but successful implementation has not been achieved in conventional motors
Solution Approach 1:
The patent applies asymmetry by configuring the stator with non-uniform magnetic pole distribution and specific angular positioning (90度和45度 angles) to create an asymmetric magnetic field. This asymmetric field interacts with the permanent magnets on the rotor to generate unidirectional torque, successfully enabling permanent magnets to function as direct power sources in motor operation.
2Ease of manufacture
If symmetric magnetic stator configuration is used, then manufacturing is simplified, but torque generation efficiency is reduced
Solution Approach 1:
The patent deliberately introduces asymmetry in the stator's magnetic pole configuration with specific angular relationships (90度和45度). This asymmetric design creates a magnetic field distribution that generates constructive interference and unidirectional force vectors, significantly improving torque generation efficiency compared to symmetric configurations.
Solution Approach 2:
The patent applies local quality by creating regions of concentrated magnetic force within the stator structure. The asymmetric configuration concentrates magnetic flux in specific areas to generate focused force vectors that act on the rotor magnets, enhancing local torque production while maintaining overall structural integrity.
3Device complexity
If conventional symmetric motor design is used, then device complexity is reduced, but power output efficiency cannot be scaled up
Solution Approach 1:
The patent uses asymmetric stator configuration with specifically positioned magnetic poles to create a magnetic field that generates enhanced unidirectional torque. This design enables the motor to achieve scaled-up power output efficiency while maintaining relatively simple device structure through the systematic application of asymmetric geometric relationships.
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 configuration enables the motor to directly generate extra torque and increase the rotor's speed, resulting in enhanced power output and efficiency, suitable for portable power source generation and energy harvesting with zero emissions and reduced noise.
Implementation Method 1
the four like-poles of the rotor magnets first encounter another like-pole located at the beginning of the stator, and then eventually they would surpass the opposite magnetic pole at the end of the stator due to the combination of the two forward-facing repulsive and attractive forces of the poles
Implementation Method 2
These magnets each encounter an asymmetric magnetic stator, and the stator is angled between 90 and 45 degrees from the horizontal axis, wherein the strongest asymmetry is found just above the 45 degree point
Data Source
AI summary
A single asymmetric magnetic stator force field is used to help breach into the next magnetic potential on a rotor disc as well as contain the extra momentum as the motor progresses faster than it normally would without it, up until an intended terminal velocity is reached. The latter side of the asymmetric stator's permanent magnet net force pinpoint position is significantly stronger than the preceding side, thereby creating a forward bias which can be used to heighten a rotor disc's speed or overall angular force for the purpose of energy harvesting and use.