Segmented PCB Stator Architecture for Compact Axial Field Rotaries
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Solution Overview
Problem
Conventional axial field rotary energy devices with layered disk stators are large, complex, and expensive, and existing designs using printed circuit board (PCB) stators are not modular, making them costly and difficult to manufacture effectively.
Innovation Solution
The development of an axial field rotary energy device featuring a rotor with a magnet and a coaxial stator composed of modular PCB segments, where each stator segment includes a PCB layer with a coil, allowing for efficient coupling of electrical phases and improved manufacturing simplicity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional layered disk stators with wires are used, then the device can be manufactured, but the device becomes large and difficult to manufacture
Solution Approach 1:
The patent replaces traditional mechanical wire winding and interconnection systems with a printed circuit board (PCB) based system. The PCB stator uses standardized PCB manufacturing processes to create coil windings and electrical interconnections, eliminating the need for manual wire winding, insulation wrapping, and mechanical fastening operations. This substitution dramatically simplifies manufacturing while reducing device volume through more efficient space utilization of the PCB structure.
2Ease of manufacture
If PCB stators are used, then manufacturing is simplified, but the device becomes complicated and expensive
Solution Approach 1:
The patent divides the PCB stator into multiple modular segments, each containing a specific number of coils and electrical phases. These segments can be independently manufactured, tested, and assembled, reducing the overall complexity of any single PCB unit. The segmentation allows for standardized production of identical modules that can be replicated and combined to create different device configurations, thereby simplifying the manufacturing process while managing design complexity through modularity.
3Volume of moving object
If PCB stators with multiple phases are integrated into single segments, then the device is more compact, but manufacturing becomes more expensive and complex
Solution Approach 1:
The patent separates the stator into multiple segments, each handling a specific electrical phase or coil set. This segmentation allows each segment to be manufactured as a simpler, more cost-effective PCB unit using standardized manufacturing processes. The segments are then assembled together to form the complete multi-phase stator, achieving the desired compactness while avoiding the exponential cost and complexity increases that would result from integrating all phases into a single complex PCB.
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 solution results in a cost-effective, modular, and efficient axial field rotary energy device with improved manufacturing ease and reduced complexity, enhancing the overall performance and efficiency of the system.
Implementation Method 1
a rotor comprising an axis of rotation and a magnet; and a stator coaxial with the rotor, the stator comprises a printed circuit board (PCB) having a PCB layer comprising a coil
Data Source
AI summary
An axial field rotary energy device can include a rotor comprising an axis of rotation and a magnet. In addition, a stator can be coaxial with the rotor. The stator can include a plurality of stator segments that are coupled together about the axis. Each stator segment can include a printed circuit board (PCB) having a PCB layer comprising a coil. Each stator segment also can include only one electrical phase. The stator itself can include one or more electrical phases.


