Stator silicon steel sheet with radial flow channel, stator core, motor, and electric vehicle

A powertrain, comprising:

• a reducer or a transmission;
• and
• a motor, wherein a motor shaft of the motor is in transmission connection to an input shaft of the reducer or an input shaft of the transmission, the motor comprises a stator silicon steel sheet with a radial flow channel, the stator silicon steel sheet comprises a plurality of first cooling holes, a plurality of second cooling holes, and at least one radial flow channel, wherein,
• in an axial direction of the stator silicon steel sheet, each first cooling hole of the plurality of first cooling holes and each second cooling hole of the plurality of second cooling holes penetrate the stator silicon steel sheet;
• in a circumferential direction of the stator silicon steel sheet, the plurality of first cooling holes is spaced from each other, and the plurality of second cooling holes is spaced from each other;
• in a radial direction of the stator silicon steel sheet, a distance between each first cooling hole of the plurality of first cooling holes and a center of the stator silicon steel sheet is greater than a distance between each second cooling hole of the plurality of second cooling holes and the center of the stator silicon steel sheet;
• and
• each radial flow channel is configured to communicate with one first cooling hole of the plurality of first cooling holes and one second cooling hole of the plurality of second cooling holes, and the plurality of first cooling holes and the plurality of second cooling holes hole are adjacently arranged in the radial direction of the stator silicon steel sheet.

An electric vehicle, comprising:

• wheels,
• a transmission mechanism, and
• a powertrain wherein the powertrain is configured to drive the wheels via the transmission mechanism, the powertrain comprises a reducer or a transmission and a motor, wherein a motor shaft of the motor is in transmission connection to an input shaft of the reducer or an input shaft of the transmission, the motor comprises a stator silicon steel sheet with a radial flow channel, the stator silicon steel sheet comprises a plurality of first cooling holes, a plurality of second cooling holes, and at least one radial flow channel, wherein
• in an axial direction of the stator silicon steel sheet, each first cooling hole of the plurality of first cooling holes and each second cooling hole of the plurality of second cooling holes penetrate the stator silicon steel sheet;
• in a circumferential direction of the stator silicon steel sheet, the plurality of first cooling holes is spaced from each other, and the plurality of second cooling holes is spaced from each other;
• in a radial direction of the stator silicon steel sheet, a distance between each first cooling hole of the plurality of first cooling holes and a center of the stator silicon steel sheet is greater than a distance between each second cooling hole of the plurality of second cooling holes and the center of the stator silicon steel sheet;
• and
• each radial flow channel is configured to communicate with one first cooling hole of the plurality of first cooling holes and one second cooling hole of the plurality of second cooling holes, and the first cooling hole of the plurality of first cooling holes and the second cooling hole of the plurality of second cooling holes are adjacently arranged in the radial direction of the stator silicon steel sheet.