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CN-224204952-U - Stator core, double-rotor motor and clothes dryer

CN224204952UCN 224204952 UCN224204952 UCN 224204952UCN-224204952-U

Abstract

The utility model provides a stator core, birotor motor and dryer, stator core contains a plurality of outer stator wire casings and a plurality of interior stator wire casings, and outer stator wire casing and interior stator wire casing all are through evenly distributed has a plurality of tooth portions in order to separate the formation on the yoke, and two the extension direction of tooth portion on the yoke is opposite, a plurality of interior stator wire casing is used for holding the stator winding in order to form the internal magnetic field, a plurality of outer stator wire casing is used for holding the stator winding in order to form the external magnetic field, is provided with on at least one yoke and hinders magnetic structure in order to be used for restraining the internal-external magnetic field mutual interference. According to the utility model, on the premise of ensuring the output stability and efficiency of the double-rotor motor, the distance between the outer stator wire slot and the inner stator wire slot can be reduced, so that the outer diameter of the stator core is reduced, the size of the stator is reduced, the volume of the double-rotor motor is smaller, the double-rotor motor is suitable for scenes with higher volume requirements, such as clothes dryers, and the like, and the equipment is compact.

Inventors

  • ZHANG KUN
  • SUN HAOYUAN
  • TIAN ZHIFA

Assignees

  • 浙江永昌电气股份有限公司

Dates

Publication Date
20260505
Application Date
20250424

Claims (9)

  1. 1. The utility model provides a stator core for birotor motor, contains a plurality of outer stator wire casing (111) and a plurality of interior stator wire casing (112), and outer stator wire casing (111) and interior stator wire casing (112) are all through evenly distributed on yoke (113) have a plurality of tooth portions (114) in order to separate the formation, and two the extension direction of tooth portions (114) on yoke (113) are opposite, a plurality of interior stator wire casing (112) are used for holding the stator winding in order to form the internal magnetic field, a plurality of outer stator wire casing (111) are used for holding the stator winding in order to form the external magnetic field, and its characterized in that is provided with on at least yoke (113) and hinders magnetic structure in order to be used for suppressing the internal-external magnetic field mutual interference.
  2. 2. A stator core according to claim 1, characterized in that the magnetic blocking structure comprises a plurality of air slots (115) arranged circumferentially around the central axis of the yoke (113).
  3. 3. A stator core according to claim 2, characterized in that the air slots (115) sweep at least one outer stator slot (111) or one inner stator slot (112) in the circumferential direction of the yoke (113).
  4. 4. A stator core according to claim 2, characterized in that the two yokes (113) are integrally connected, either by an interference fit or by a connecting piece.
  5. 5. A stator core according to claim 1, characterized in that the magnetic blocking structure comprises a plurality of magnetic blocking sheets (116) arranged circumferentially around the central axis of the yoke (113).
  6. 6. A stator core according to claim 5, characterized in that the magnetic barrier sheet (116) is embedded in the corresponding yoke (113).
  7. 7. A stator core according to claim 1, characterized in that the magnetic blocking structure comprises a magnetic blocking ring (117), the magnetic blocking ring (117) being arranged coaxially with the yokes (113), and the magnetic blocking ring (117) being arranged between the yokes (113) and being connected to both yokes (113) as a whole.
  8. 8. A dual rotor electric machine comprising a stator core, characterized in that the stator core is as claimed in any one of claims 1 to 7.
  9. 9. A clothes dryer comprising the dual rotor motor of claim 8.

Description

Stator core, double-rotor motor and clothes dryer Technical Field The utility model relates to a stator core, a double-rotor motor and a clothes dryer, and belongs to the technical field of motors. Background One of the motors, namely a double-rotor motor, is characterized in that an inner stator slot and an outer stator slot are arranged on a stator core, and a stator winding is arranged in the corresponding stator slot to form an inner magnetic field and an outer magnetic field, such as a double-shaft independent regulation motor disclosed in China patent with the application number 202410451367.9. At present, a larger distance is needed between the outer stator wire slot and the inner stator wire slot so as to inhibit mutual interference of the inner magnetic field and the outer magnetic field, and further ensure the output stability and efficiency of the double-rotor motor, but the stator core is larger in outer diameter, the motor is huge in size, and the motor is not beneficial to being applied to scenes with higher requirements on size such as clothes dryers and is not beneficial to improving the compactness of equipment. Disclosure of utility model The application aims to provide a stator core which can reduce the outer diameter on the premise of ensuring the output stability and the output efficiency of a double-rotor motor. The utility model provides a stator core for birotor motor, contains a plurality of outer stator wire casing and a plurality of interior stator wire casing, and outer stator wire casing and interior stator wire casing all are through evenly distributed has a plurality of tooth portions in order to separate the formation on the yoke, and two the extension direction of tooth portion on the yoke is opposite, a plurality of interior stator wire casing is used for holding the stator winding in order to form the internal magnetic field, a plurality of outer stator wire casing is used for holding the stator winding in order to form the external magnetic field, is provided with on at least a yoke and hinders magnetic structure in order to be used for suppressing the internal-external magnetic field mutual interference. Preferably, the magnetic blocking structure includes a plurality of air grooves circumferentially arranged about a central axis of the yoke. Preferably, the air slot sweeps at least one outer stator slot or one inner stator slot along the circumferential direction of the yoke. Preferably, the two yokes are integrally connected, or connected by interference fit, or connected by a connecting piece. Preferably, the magnetic blocking structure includes a plurality of magnetic blocking sheets circumferentially arranged around a central axis of the yoke. Preferably, the magnetic-resistant sheet is embedded on the corresponding yoke portion. Preferably, the magnetic blocking structure comprises a magnetic blocking ring, the magnetic blocking ring and the yoke are coaxially arranged, and the magnetic blocking ring is arranged between the two yokes and connected with the two yokes into a whole. The double-rotor motor comprises a stator core, wherein the stator core is in any one of the technical schemes. A clothes dryer comprises the double-rotor motor in the scheme. In summary, the utility model has the following beneficial effects: Compared with the prior art, the utility model has the advantages that the magnetic blocking structure is arranged on the yoke part of the stator core to effectively inhibit the mutual interference between the inner magnetic field and the outer magnetic field, so that the distance between the outer stator wire slot and the inner stator wire slot can be reduced on the premise of ensuring the output stability and the output efficiency of the double-rotor motor, the outer diameter of the stator core is reduced, the size of the stator is reduced, the volume of the double-rotor motor is smaller, the double-rotor motor is suitable for scenes with higher volume requirements such as clothes dryers, and the compactness of equipment is improved. According to the utility model, the magnetic blocking structure specifically adopts the air groove, so that the air flow in the motor can be improved, and the temperature of the motor during operation can be reduced. And 3, the two yokes of the stator core are integrally connected, namely, the stator sheets forming the stator core are punched at one time to form teeth and grooves at two sides, so that the manufacturing is convenient, and the manufacturing cost is saved. Drawings FIG. 1 is a schematic diagram of a dual rotor motor; fig. 2 is a schematic structural view of the stator core of fig. 1; fig. 3 is a schematic structural view of a second stator core; Fig. 4 is a schematic structural view of a third stator core; fig. 5 is a schematic structural view of a part of the stator core constituting fig. 4; fig. 6 is a schematic structural view of another portion constituting the stator core of fig. 4; Fig. 7 is a schem