Power assembly and electric vehicle

An electric vehicle, comprising:

• a battery configured to provide electric energy;
• and
• a power assembly configured to receive the electric energy, wherein the power assembly comprises:
• a power component comprising a stator disposed in a rotating shaft cavity and configured to drive cooling liquid to flow during rotation of the power component;
• and
• a shell comprising:
• an accommodating structure filled with cooling liquid and rotatably disposing the power component;
• a flow diversion structure configured to guide a flow direction of the cooling liquid to flow;
• a liquid storage structure configured to:
• receive the cooling liquid that is guided from the flow diversion structure;
• store the cooling liquid;
• and
• distribute the cooling liquid;
• a heat dissipation structure comprising:
• a spacer plate disposed on a top of the rotating shaft cavity and comprising a liquid guiding hole;
• and
• a stator heat dissipation groove in communication with the liquid storage structure and the accommodating structure, wherein the stator heat dissipation groove is configured to:
• receive the cooling liquid from the liquid storage structure;
• and
• transfer the cooling liquid to the stator through the liquid guiding hole for cooling the power component;
• and
• a heat exchange structure configured to:
• perform heat exchange on the cooling liquid in the accommodating structure;
• and
• perform cooling on the cooling liquid in the accommodating structure.