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CN-224204853-U - Safe and compact-structure double-rotor motor and clothes dryer comprising same

CN224204853UCN 224204853 UCN224204853 UCN 224204853UCN-224204853-U

Abstract

The utility model provides a safe and compact structure's birotor motor and contain its dryer, contains stator core, stator frame, and stator frame passes through a plurality of metal connecting pieces to be connected on stator core's axial terminal surface, and stator core has the outer stator wire casing that is used for holding outer stator winding and is used for holding the interior stator wire casing of interior stator winding, and metal connecting pieces set up between outer stator wire casing and interior stator wire casing, be equipped with on the stator frame and be located outer insulating ring between outer stator wire casing and the metal connecting piece and be located interior insulating ring between interior stator wire casing and the metal connecting piece. The double-rotor motor is more compact in structure and smaller in volume.

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 (8)

  1. 1. The utility model provides a safe and compact structure's birotor motor, contains stator core (11), stator frame (12), and stator frame (12) are connected on the axial terminal surface of stator core (11) through a plurality of metal connection piece (13), and stator core (11) have outer stator wire casing (111) that are used for holding outer stator winding and are used for holding interior stator wire casing (112) of interior stator winding, and metal connection piece (13) set up between outer stator wire casing (111) and interior stator wire casing (112), a serial communication port, be equipped with on stator frame (12) and be located outer insulating ring (124) between outer stator wire casing (111) and metal connection piece (13) and be located interior insulating ring (125) between interior stator wire casing (112) and metal connection piece (13).
  2. 2. The double rotor motor according to claim 1, wherein the outer insulation ring (124) is integrally connected to the stator frame (12), and the inner insulation ring (125) is integrally connected to the stator frame (12).
  3. 3. The safe and compact dual rotor motor as claimed in claim 1, wherein the outer wall of the outer insulating ring (124) is recessed toward the inner wall of the outer insulating ring (124) to form a creepage path extension (1241).
  4. 4. The safe and compact dual rotor motor as claimed in claim 1, wherein the inner wall of the inner insulating ring (125) is recessed toward the outer wall of the inner insulating ring (125) to form a creepage path extension two (1251).
  5. 5. A safe and compact double-rotor motor as claimed in claim 1, wherein the stator core (11) has a yoke (113), the stator bobbin (12) includes a yoke fitting ring (123) for fitting to the yoke (113), an outer periphery of the yoke fitting ring (123) is provided with a plurality of outer insulation portions (121) for insulating a plurality of teeth (114) relatively outward on the stator core (11), and an inner periphery of the yoke fitting ring (123) is provided with a plurality of inner insulation portions (122) for insulating a plurality of teeth (114) relatively inward on the stator core (11); the outer insulating ring (124) is arranged at the outer circumference of the yoke fitting ring (123), and the inner insulating ring (125) is arranged at the inner circumference of the yoke fitting ring (123).
  6. 6. The safe and compact dual rotor motor as claimed in claim 5, wherein the yoke portion attaching ring (123) is provided with a connecting hole (1231) through which the metal connecting piece (13) passes, the connecting hole (1231) is tangential to the inner wall of the outer insulating ring (124), and the connecting hole (1231) is tangential to the outer wall of the inner insulating ring (125).
  7. 7. The safe and compact dual-rotor motor as claimed in claim 5, wherein the yoke fitting ring (123) is further provided with a plurality of positioning posts (1232) facing the axial end face of the stator core (11), and the axial end face of the stator core (11) facing the yoke fitting ring (123) is provided with positioning holes (118) cooperating with the positioning posts (1232).
  8. 8. A clothes dryer comprising the dual rotor motor of any one of claims 1 to 7.

Description

Safe and compact-structure double-rotor motor and clothes dryer comprising same Technical Field The utility model relates to a safe and compact double-rotor motor and a clothes dryer with the same, and belongs to the technical field of double-rotor motors. Background In the prior art, the stator core of the dual-rotor motor often fixes an insulating framework on the axial end face of the stator core through a high-strength metal connecting piece such as a press-fit shaft, so as to ensure the electrical safety of the inner stator winding, the outer stator winding and the stator core. Because the inner stator winding needs to keep a larger safety distance from the metal connecting piece and the outer stator winding from breakdown, the outer diameter of the stator core is larger, and correspondingly, the motor is larger, thereby being not beneficial to scenes with higher volume requirements, such as clothes dryers, and the like, and being not beneficial to compact design of equipment. Disclosure of utility model One of the purposes of the application is to provide a double-rotor motor which has good electrical safety, more compact structure and smaller volume. The double-rotor motor comprises a stator core and a stator frame, wherein the stator frame is connected to the axial end face of the stator core through a plurality of metal connecting pieces, the stator core is provided with an outer stator wire groove for accommodating an outer stator winding and an inner stator wire groove for accommodating an inner stator winding, the metal connecting pieces are arranged between the outer stator wire groove and the inner stator wire groove, and an outer insulating ring arranged between the outer stator wire groove and the metal connecting pieces and an inner insulating ring arranged between the inner stator wire groove and the metal connecting pieces are arranged on the stator frame. Preferably, the outer insulating ring is connected with the stator frame in an integrated manner, and the inner insulating ring is connected with the stator frame in an integrated manner. Preferably, the outer wall of the outer insulating ring is recessed towards the inner wall of the outer insulating ring to form a first creepage path extension section. Preferably, the inner wall of the inner insulating ring is recessed towards the outer wall of the inner insulating ring to form a creepage path extension section II. Preferably, the stator core has a yoke, the stator bobbin includes a yoke attaching ring for attaching to the yoke, a plurality of outer insulating portions provided on an outer periphery of the yoke attaching ring for insulating a plurality of teeth on the stator core relatively outward, and a plurality of inner insulating portions provided on an inner periphery of the yoke attaching ring for insulating a plurality of teeth on the stator core relatively inward; The outer insulating ring is arranged at the outer circumference of the yoke fitting ring, and the inner insulating ring is arranged at the inner circumference of the yoke fitting ring. Preferably, the yoke part attaching ring is provided with a connecting hole for the metal connecting piece to pass through, the connecting hole is tangential with the inner wall of the outer insulating ring, and the connecting hole is tangential with the outer wall of the inner insulating ring. Preferably, the yoke fitting ring surface is further provided with a plurality of positioning columns toward the axial end surface of the stator core, and the axial end surface of the stator core facing the yoke fitting ring is provided with positioning holes matched with the positioning columns. Another object of the present application is to provide a clothes dryer comprising the dual rotor motor of any of the above-mentioned aspects. In summary, the utility model has the following beneficial effects: 1. According to the double-rotor motor, the outer insulating ring arranged between the outer stator wire slot and the metal connecting piece and the inner insulating ring arranged between the inner stator wire slot and the metal connecting piece are arranged on the stator wire frame, so that the creepage distance between the metal connecting piece and the outer stator winding is increased, the creepage distance between the metal connecting piece and the inner stator winding is increased by the inner insulating ring, the size of the stator can be reduced on the premise of ensuring electrical safety, the double-rotor motor is correspondingly compact in structure and smaller in size, and the double-rotor motor is suitable for clothes dryers and other scenes with higher volume requirements. 2. According to the double-rotor motor, the outer wall of the outer insulating ring is recessed towards the inner wall of the outer insulating ring to form the creepage path extension section I, so that the creepage distance between the metal connecting piece and the outer stator winding is further increased, me