Patent ID: 11863030
Assignee: MIDEA WELLING MOTOR TECHNOLOGY (SHANGHAI) CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A motor comprising:
a stator assembly, comprising a stator core and two groups of mutually independent windings, wherein a hollow channel is arranged in a radial middle part of the stator core, wherein two axial end portions of the stator core are provided with stator teeth protruding towards two axial sides of the stator core, and wherein the two groups of windings are wound on two groups of stator teeth respectively;
two mutually independent rotor assemblies, being oppositely and coaxially arranged on two axial sides of the stator assembly and forming an axial air gap with the stator assembly, wherein the two rotor assemblies are configured to rotate independently; and
two mutually independent rotating shaft assemblies being coaxially connected with the two rotor assemblies respectively and protruding in a direction of the same side away from the stator core along an axial direction of the motor, wherein parts of the two rotating shaft assemblies are arranged in the hollow channel,
wherein:
a rotating shaft of one of the rotating shaft assemblies is a hollow shaft, and
a rotating shaft of the other one of the rotating shaft assemblies extends out through the hollow shaft and is configured to rotate relative to the hollow shaft, and

wherein:
the rotating shaft of said the other one of the rotating shaft assemblies comprises a connecting section and an extending section connected with the connecting section,
an outer diameter of the connecting section is equal to an outer diameter of the hollow shaft,
the connecting section and the hollow shaft are arranged along the axial direction of the hollow channel, and
the extending section extends through the hollow shaft.