Rotor structure, electric motor structure, and clothing treating device

1 . A rotor structure comprising:

a rotor iron core comprising at least one first punching sheet, at least one second punching sheet, and at least one third punching sheet that are stacked along an axial direction of the rotor iron core to form a plurality of permanent magnet slots arranged in a circumferential direction of the rotor iron core,

wherein:

at least one of the at least one first punching sheet, the at least one second punching sheet, or the at least one third punching sheet forms magnetic barriers adjacent to, and on at least one side of, the permanent magnet slots in the circumferential direction,

each of the magnetic barriers has a first end proximate a respective permanent magnet slot and a second end proximate an outer edge of the rotor iron core,

the at least one first punching sheet forms a first convex plate with protrusions extending radially outward from radially inward sides of the permanent magnet slots,

the at least one second punching sheet forms a second convex plate with protrusions extending radially outward from radially inward sides of the permanent magnet slots,

the at least one third punching sheet forms a third convex plate with protrusions extending radially outward from radially inward sides of the permanent magnet slots, and

the protrusions of the third convex plate are higher than those of the first convex plate, or

the protrusions of the third convex plate are higher than those of the second convex plate; and

permanent magnets disposed in the permanent magnet slots and abutting the protrusions of the third convex plate.

2 . The rotor structure according to claim 1 , wherein:

the magnetic barriers are formed by the at least one first punching sheet, and

the at least one second punching sheet is provided on at least one end of the rotor iron core along the axial direction.

3 . The rotor structure according to claim 2 , wherein:

the at least one first punching sheet comprises multiple first punching sheets that are adjacent to one another; and

the at least one second punching sheet comprises two second punching sheets disposed on respective ends of the rotor iron core in the axial direction.

4 . The rotor structure according to claim 1 , wherein:

a number of the at least one third punching sheet is less than a number of the at least one first punching sheet; or

a number of the at least one third punching sheet is less than a number of the at least one second punching sheet.

5 . The rotor structure according to claim 1 , wherein:

the magnetic barriers are located on one side of the permanent magnet slots; or

a configuration of the magnetic barriers of at least one of the at least one first punching sheet, the at least one second punching sheet, and the at least one third punching sheet is different from a configuration of the magnetic barriers of at least one other of the at least one first punching sheet, the at least one second punching sheet, and the at least one third punching sheet.

6 . The rotor structure according to claim 1 , wherein:

the at least one first punching sheet forms a first injection molding hole,

the at least one second punching sheet forms a second injection molding hole, and

the second injection molding hole is aligned with the first injection molding hole.

7 . The rotor structure according to claim 1 , wherein

the magnetic barriers are provided proximate leading sides of the permanent magnet slots in a rotation direction of the rotor structure.

8 . The rotor structure according to claim 1 , wherein:

the first end is part of a first slot segment extending towards the respective permanent magnet slot; and

the second end is part of a second slot segment in communication with the first slot segment that extends towards the outer edge of the rotor iron core.

9 . An electric motor structure comprising:

a stator structure; and

the rotor structure according to claim 1 ,

wherein the rotor structure is:

coaxially arranged with the stator structure, and

configured to rotate relative to the stator structure unidirectionally or bidirectionally.

10 . The electric motor structure according to claim 9 , wherein the stator structure comprises:

a stator iron core comprising a plurality of stator convex teeth that are circumferentially arranged about an axis of the stator iron core; and

a stator winding

wound around the stator convex teeth.

11 . A clothing treating device comprising:

a housing; and

the electric motor structure according to claim 9 , wherein the electric motor structure is provided in the housing.

12 . A rotor structure comprising:

a rotor iron core comprising at least one first punching sheet, at least one second punching sheet, and at least one third punching sheet that are stacked along an axial direction of the rotor iron core to form a plurality of permanent magnet slots arranged in a circumferential direction of the rotor iron core,

wherein:

at least one of the at least one first punching sheet, the at least one second punching sheet, or the at least one third punching sheet forms magnetic barriers adjacent to, and on at least one side of, the permanent magnet slots in the circumferential direction,

each of the magnetic barriers has a first end proximate a respective permanent magnet slot and a second end proximate an outer edge of the rotor iron core,

the at least one first punching sheet forms protrusions extending radially outward from radially inward sides of the permanent magnet slots,

the at least one second punching sheet forms protrusions extending radially outward from radially inward sides of the permanent magnet slots, and

the at least one third punching sheet forms protrusions:

extending radially outward from radially inward sides of the permanent magnet slots, and

extending circumferentially from at least one of a circumferentially leading or trailing side of the permanent magnet slots towards an opposite side of the permanent magnet slots; and

permanent magnets disposed in the permanent magnet slots and abutting the protrusions of the third convex plate.