Motor rotor, motor and vehicle

Abstract

The embodiment of the invention provides a motor rotor, a motor and a vehicle, and the motor rotor comprises a winding rotor. The winding rotor comprises a rotating shaft, a rotor iron core and a plurality of rotor coils. The rotor iron core is fixedly sleeved on the rotating shaft, a plurality of winding holes are formed in the rotor iron core around the rotating shaft at intervals, each windinghole penetrates through the two ends of the rotor iron core arranged along the axial direction, each rotor coil is wound on the hole wall between two adjacent winding holes, and two adjacent rotor coils share one winding hole. A gap is formed between two adjacent rotor coils. A first shaft hole is formed in the rotating shaft. The gap is configured to be a first heat dissipation channel communicated with the first shaft hole, and the first heat dissipation channel is used for cooling liquid flowing into the rotating shaft, so that the cooling liquid introduced into the rotating shaft from theoutside can enter the first heat dissipation channel from the first shaft hole under the action of centrifugal force to dissipate heat of the rotor coil of the wound rotor, and the heat dissipation efficiency of the rotor coil is effectively improved.

Description

technical field [0001] The embodiments of the present application relate to the technical field of drive equipment, and in particular to a motor rotor, a motor and an automobile. Background technique [0002] Because the excitation motor does not need to use magnetic steel, and the excitation of the excitation motor rotor can be adjusted, it has the characteristics of low cost, no risk of demagnetization, and high driving efficiency. The motor can be used as driving equipment in the fields of automobile main drive and auxiliary drive system, factory granulation system, etc. [0003] In the related art, an excitation motor includes a stator and a rotor, the stator is movably sleeved on the outer periphery of the rotor, and the rotor is used for connecting with a load. When working, the rotor rotates relative to the stator under the action of the rotating magnetic field generated by the stator, thereby driving the load to move. In order to ensure that the rotor of the excita...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a motor rotor, motor and automobile, which solves the problem that the traditional motor rotor adopts air-cooled heat dissipation method to dissipate heat, which leads to the inability of the motor rotor to obtain effective heat dissipation

Images