Systems and methods for cooling an electric aircraft

An electric motor assembly comprising:

• a motor housing having an end face;
• a motor within the motor housing;
• an electronics assembly disposed on the end face of the motor housing, the electronics assembly comprising:
• a casing comprising a casing interior cavity and an outer surface, wherein the outer surface comprises a plurality of slots, and wherein the casing defines an enclosure;
• at least one electronic device within the enclosure;
• one or more fin segments comprising a first fin, a second fin, and a connecting portion that connects the first fin to the second fin, wherein the first fin and the second fin are inserted into the plurality of slots such that the first fin and the second fin protrude from the outer surface of the casing, wherein the first fin and the second fin each comprises a fin interior cavity;
• and
• one or more pulsating heat pipes disposed within the fin interior cavity of the first fin and the second fin.

An electric vertical take-off and landing vehicle (eVTOL) comprising:

• an electric motor assembly comprising:
• a motor housing having an end face;
• a motor within the motor housing;
• an electronics assembly disposed on the end face of the motor housing, the electronics assembly comprising:
• a casing comprising a casing interior cavity and an outer surface, wherein the casing defines an enclosure;
• at least one electronic device within the enclosure;
• one or more fins protruding from the outer surface of the casing, wherein the one or more fins comprises a fin interior cavity;
• and one or more pulsating heat pipes disposed within both of the casing interior cavity and the fin interior cavity of the one or more fins.