Printed circuit board stator axial field rotary energy device with rotor disks and ferromagnetic yoke

An axial field rotary energy device

• a housing;
• a rotor coupled to the housing and comprising an axis of rotation and two rotor disks comprising magnets on both sides of each rotor disk;
• four stators coaxial with the rotor, each stator comprising a printed circuit board (PCB) having conductive layers laminated together with layers of an insulating material, each conductive layer comprises coils that can carry electrical current when connected to an external voltage source, and the stators are directly and axially mechanically coupled to the housing, so the stators react to torque produced by the device;
• four ferromagnetic yokes coaxial with the rotor and the stators, the ferromagnetic yokes are directly mechanically and thermally coupled to the stators, respectively, to provide a path for magnetic flux produced by the magnets and a direct path to conduct heat generated by the stators from the stators to respective cooling plates, and the ferromagnetic yokes do not transmit torque;
• the cooling plates comprise three cooling plates that are coaxial with the rotor and directly coupled to the ferromagnetic yokes, respectively, and the cooling plates comprise a continuous sealed channel connected to an inlet and an outlet and configured to convey a liquid coolant;
• the housing comprises end sections and mid-sections wherein:
• each end section is directly mechanically coupled to a respective stator, ferromagnetic yoke, cooling plate and mid-section;
• and
• each mid-section is directly mechanically coupled to a respective stator, ferromagnetic yoke, cooling plate and end section.

An axial field rotary energy device

• a housing;
• a rotor coupled to the housing and comprising an axis of rotation and two rotor disks comprising magnets;
• a stator coaxial with the rotor, the stator comprises a printed circuit board (PCB) with conductive layers laminated together with layers of an insulator, each conductive layer comprises coils that are configured to carry electrical current when connected to an external voltage source, and the stator is directly and axially mechanically coupled to the housing, so the stator reacts to torque produced by the device;
• a ferromagnetic yoke coaxial with the rotor and the stator, the ferromagnetic yoke is directly mechanically and thermally coupled to the stator to provide a path for magnetic flux produced by the magnets and a direct path to conduct heat generated by the stator from the stator to the cooling plate, and the ferromagnetic yoke does not transmit torque;
• a cooling plate coaxial with the rotor, stator and ferromagnetic yoke, the cooling plate is directly coupled to the ferromagnetic yoke, and the cooling plate comprises a continuous sealed channel connected to an inlet and an outlet and configured to convey a liquid coolant.