Patent ID: 11876419
Assignee: JOBY AERO, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 12:
13. A method of cooling an electric motor comprising a rotor and a stator, the stator comprising:
a yoke;
a plurality of teeth being aligned substantially parallel to an axis of rotation of the motor, each tooth including a first radial end adjacent to the yoke and a second radial end extending from the yoke;
a plurality of field coils, each field coil being wrapped around a tooth
at least one radial baffle located over axial ends of the plurality of teeth,
the method comprising:
circulating a coolant through a coolant circulation path including:
a first coolant channel defined between adjacent field coils;
a second coolant channel defined between adjacent field coils and between the first radial ends of adjacent teeth:
a third coolant channel defined outside field coil portions located at axial ends of the plurality of teeth; and
a fourth coolant channel defined between the at least one radial baffle and inside the field coil portions located at axial ends of the plurality of teeth.