Over-molded liquid cooled three-stack motor

A direct current electric motor comprising:

• a housing;
• three electrically and mechanically independent stator sections longitudinally disposed along a common axis within the housing, and independently connected to three motor drive phase modules, wherein a controller circuitry sequentially activates the three motor drive phase modules;
• a three stage rotor assembly having a center rotor element and two end rotor elements, the center rotor element having a magnetic orientation that is in opposite phase from the magnetic orientation of the end rotor elements;
• and
• a motor driver circuit disposed integral with the housing, the motor driver circuit comprising the three separate motor drive phase modules, each motor drive phase module electrically coupled to a respective one of the independent stator sections;
• wherein each of the three electrically and mechanically independent stator sections includes an injection-molded plastic over-mold.