Vacuum cleaner motor device and vacuum cleaner

A vacuum cleaner motor device, comprising:

• a motor assembly, and
• an expansion assembly, wherein the motor assembly comprises:
• a rotor,
• a stator, and
• a main shaft, wherein the expansion assembly comprises:
• a first motor support,
• a second motor support,
• a fan blade member,
• a fan blade member support,
• a PCBA assembly,
• a first bearing, and
• a second bearing, wherein the stator comprises:
• four U-shaped upper winding supports,
• four U-shaped lower winding supports, and
• four motor silicon steel sheets, wherein U-shaped openings of the four U-shaped upper winding supports and U-shaped openings of the four U-shaped lower winding supports are oppositely arranged such that the four motor silicon steel sheets are fixed between the four U-shaped upper winding supports and the four U-shaped lower winding supports, wherein the four U-shaped upper winding supports, the four U-shaped lower winding supports and the four motor silicon steel sheets are fixed within a first motor support through bolts, wherein the main shaft penetrates through the stator and is sequentially provided with the first bearing, the rotor, the second bearing and a Hall magnet from top to bottom, wherein the rotor is arranged in the middle of the main shaft and is surrounded by the stator, wherein the second bearing is fixed with a lower portion of the first motor support, and the Hall magnet is fixed at a lower end of the main shaft, wherein the rotor is a neodymium iron boron magnet made of neodymium iron boron, wherein a fan blade member support is arranged above the first motor support, and the fan blade member is arranged at a top end of the main shaft penetrating through the fan blade member support, wherein the first bearing is fixedly arranged at a lower middle portion of the fan blade member support, wherein an outer circumferential diameter of the fan blade member ranges from 35 to 40 mm, wherein the lower portion of the first motor support is further provided with a connecting piece, and the connecting piece is fixedly connected with the PCBA assembly, wherein the PCBA assembly is provided with a buckling member, the second motor support is internally provided with a buckling position, and the second motor support is buckled with the PCBA assembly, wherein the second motor support covers the first motor support and the PCBA assembly from top to bottom such that the first motor support and the PCBA assembly are fixed within the second motor support.