A PCB stator axial flux motor system integrated with an encoder
By integrating the encoder and its detection circuit onto the PCB stator, the problems of high cost, large axial length, and high installation complexity of external encoder solutions for PCB stator axial flux motors are solved. This enables miniaturization of the motor and improves control performance, while ensuring detection accuracy and stability.
CN122456818APending Publication Date: 2026-07-24SUZHOU ETRON TECH CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SUZHOU ETRON TECH CO LTD
- Filing Date
- 2026-04-20
- Publication Date
- 2026-07-24
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Figure CN122456818A_ABST
Abstract
The application discloses a PCB stator axial flux motor system integrated with an encoder, and aims to solve the technical problems of large axial size, complex assembly, poor signal anti-interference and low integration of a rotor assembly caused by an existing external encoder. The motor system comprises a PCB stator module configured to integrate an encoder and a detection circuit thereof, to realize detection of rotor position and speed; a rotor module integrated with a rotating shaft and interacting with the PCB stator module through magnetic field change; and a FOC control module realizing precise electromagnetic field orientation control based on received position signals, integrating a temperature sensor and an overcurrent protection circuit to guarantee system safety, and supporting multiple communication protocols. The application realizes high integration and miniaturization of the motor, improves control precision and system safety, and is suitable for application scenarios such as electronic water pumps, robot joints, portable devices, eVTOLs and new energy sources.
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