Motor rotor, motor, and vehicle

A motor comprising:

• a stator;
• and
• a motor rotor comprising a wound rotor, wherein the wound rotor comprises:
• a rotating shaft;
• a rotor core fixedly sleeved on the rotating shaft;
• a plurality of rotor coils;
• a plurality of winding holes surrounding the rotating shaft and provided at intervals on the rotor core, wherein each winding hole penetrates through two ends that are of the rotor core and that are disposed in an axial direction, wherein each rotor coil is wound on hole walls of two adjacent winding holes, and wherein two adjacent rotor coils share one winding hole;
• a first shaft hole formed on the rotating shaft;
• a first heat dissipation channel coupled to the first shaft hole, wherein the first heat dissipation channel comprises a gap formed between two adjacent rotor coils;
• a plurality of first heat dissipation channels, wherein the first heat dissipation channel is one of the plurality of first heat dissipation channels;
• a plurality of first shaft holes provided at intervals on the rotating shaft in a circumferential direction, wherein a quantity of the plurality of first shaft holes is equal to or less than a quantity of the plurality of first heat dissipation channels;
• a first end plate and a second end plate that are respectively disposed at the two ends that are of the rotor core and that are in the axial direction;
• a first radial channel formed between the rotor core and the first end plate and configured to couple the first shaft hole and the first heat dissipation channel;
• a first outlet channel formed between the second end plate and the rotor core and coupled to an outside of the rotor core, and wherein the first heat dissipation channel is coupled to the first outlet channel;
• and
• a first reinforcement assembly disposed between the first end plate and the rotor core, and wherein the first radial channel is disposed between the first reinforcement assembly and the first end plate,
• wherein the stator is sleeved on a periphery of the motor rotor, and wherein the motor rotor is movable relative to the stator.

A vehicle comprising:

• at least two wheels;
• a transmission component;
• and
• a motor comprising:
• a stator;
• and
• a motor rotor comprising a wound rotor, wherein the wound rotor comprises:
• a rotating shaft;
• a rotor core fixedly sleeved on the rotating shaft;
• a plurality of rotor coils;
• a plurality of winding holes surrounding the rotating shaft and provided at intervals on the rotor core, wherein each winding hole penetrates through two ends that are of the rotor core and that are disposed in an axial direction, wherein each rotor coil is wound on hole walls of two adjacent winding holes, and wherein two adjacent rotor coils share one winding hole;
• a first shaft hole formed on the rotating shaft;
• and
• a first heat dissipation channel coupled to the first shaft hole, wherein the first heat dissipation channel comprises a gap formed between two adjacent rotor coils,
• wherein the stator is movably-sleeved on a periphery of the motor rotor, wherein the motor rotor is movable relative to the stator, and
• wherein the rotating shaft is coupled to the wheels using the transmission component.