Rotor cooling assembly, driving device and electric vehicle

• Main Authors: LYU LINYANG, MA YUANCHAO, GAO FENG, LEE CHUNG-WOO
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2024
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

The invention provides a rotor cooling assembly, a driving device and an electric vehicle, the rotor cooling assembly comprises a rotating shaft, an iron core structure and two end cover structures, and the rotating shaft is provided with a first overflowing cavity, an oil inlet and at least one first oil outlet; at least one permanent magnet set is embedded in the iron core structure, a polygonal area is defined by the multiple permanent magnets, and an oil guide channel of the iron core structure is located in the polygonal area. At least the first end cover structure of the two end cover structures is provided with an oil inlet channel, at least the second end cover structure of the two end cover structures is provided with an oil outlet channel, the first end of the oil inlet channel is communicated with the first oil outlet, the second end of the oil inlet channel is communicated with the first axial end of the oil guide channel, and the oil outlet channel is communicated with the second axial end of the