ELECTRICAL MOTOR FOR A SUBMERSIBLE MACHINE

摘要

An electrical motor for a submersible machine, including a stator unit having a stator core and a rotor unit that is rotatably arranged in the stator unit. The rotor unit includes a rotor core and at least one permanent magnet. The rotor core has an outer diameter that is smaller than an inner diameter of the stator core. The rotor unit includes a brake, the radially outer surface of which is inscribed on a circle having a diameter that is greater than the outer diameter of the rotor core. At least a part of the brake is arranged to abut against an inner surface of the stator core upon mutual axial displacement of the rotor unit and the stator unit. The brake is spaced-apart from the stator core when the rotor unit is in the mounted state in the stator unit.