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CN-224233425-U - Stator assembly and motor

CN224233425UCN 224233425 UCN224233425 UCN 224233425UCN-224233425-U

Abstract

An embodiment of the utility model provides a stator assembly and a motor, the stator assembly comprises a stator core, a stator coil and insulating paper, wherein the stator core is provided with a plurality of slots penetrating along an axial direction, at least one part of the stator coil is accommodated in the slots, the insulating paper is arranged in the slots and is positioned between the stator core and the stator coil, the insulating paper comprises a first side part opposite to a bottom surface of the slots, and the first side part is formed with a protrusion protruding towards the bottom surface and extending along the axial direction. The insulating paper has a first side opposite to the bottom of the slot of the stator core, and the first side of the insulating paper is provided with a protrusion to increase the strength of the insulating paper, thereby avoiding the blocking during the insertion of the insulating paper, facilitating the insertion of the insulating paper into the slot, and facilitating the positioning of the insulating paper and avoiding the protruding of the insulating paper from the stator core in the radial direction.

Inventors

  • Sen Zhishu

Assignees

  • 尼得科株式会社

Dates

Publication Date
20260512
Application Date
20250331

Claims (10)

  1. 1. A stator assembly, the stator assembly comprising: A stator core provided with a plurality of slots penetrating in an axial direction; a stator coil having at least a portion thereof received in the slot, and An insulating paper disposed in the slot and located between the stator core and the stator coil, Wherein the insulating paper includes a first side portion opposed to a bottom surface of the groove, the first side portion being formed with a protrusion protruding toward the bottom surface and extending in an axial direction.
  2. 2. The stator assembly of claim 1 wherein the stator assembly is formed from a plurality of stator segments, The projection extends from one axial end of the first side portion to the other axial end of the first side portion.
  3. 3. The stator assembly of claim 1 wherein the stator assembly is formed from a plurality of stator segments, The first side portion includes an inclined portion and a bottom portion, and the inclined portion extends from the bottom portion toward the bottom surface and the side surface of the groove to form the projection.
  4. 4. The stator assembly of claim 1 wherein the stator assembly is formed from a plurality of stator segments, The groove comprises the bottom surface, a first side surface and a second side surface which are connected with the bottom surface, a first angle is formed at the joint of the bottom surface and the first side surface, a second angle is formed at the joint of the bottom surface and the second side surface, The protrusion is in contact with at least one of the first corner and the second corner.
  5. 5. The stator assembly of claim 1 wherein the stator assembly is formed from a plurality of stator segments, The protrusions include a first protrusion and a second protrusion, which are located at both ends of the first side portion in a circumferential direction, respectively.
  6. 6. The stator assembly of claim 5 wherein the stator assembly is configured to receive the stator assembly, The first side portion is formed with a recess between the first projection and the second projection.
  7. 7. The stator assembly of claim 5 wherein the stator assembly is configured to receive the stator assembly, The insulating paper further includes a second side portion and a third side portion, wherein the second side portion is opposite to the first side surface of the slot, the third side portion is opposite to the second side surface of the slot, the first side portion connects the second side portion and the third side portion, Wherein a first crease is formed at the connection of the first side part and the second side part, a second crease is formed at the connection of the first side part and the third side part, The first side is formed with a third crease and a fourth crease, the third crease and the fourth crease are positioned between the first crease and the second crease, The first side part comprises a first inclined part connected with the first crease and the third crease, a second inclined part connected with the second crease and the fourth crease and a bottom connected with the third crease and the fourth crease.
  8. 8. The stator assembly of claim 7 wherein the stator assembly is formed from a plurality of stator segments, A third angle is formed between the first inclined portion and the second side portion, A fourth angle is formed between the second inclined portion and the third side portion, The angle of the third angle is equal to the angle of the fourth angle, and the angle of the third angle is smaller than 90 degrees.
  9. 9. The stator assembly of claim 7 wherein the stator assembly is formed from a plurality of stator segments, The distance between the first crease and the second crease is equal to the width of the bottom surface of the groove when seen along the axial direction.
  10. 10. A motor comprising the stator assembly of any one of claims 1 to 9.

Description

Stator assembly and motor Technical Field The present utility model relates to the field of electromechanics, and in particular to a stator assembly and a motor. Background The stator assembly of the motor comprises a stator core and a stator coil, and insulating paper is arranged between the stator core and the stator coil and used for insulating the stator core and the stator coil. It should be noted that the foregoing description of the background art is only for the purpose of providing a clear and complete description of the technical solution of the present utility model and is presented for the convenience of understanding by those skilled in the art. The above-described solutions are not considered to be known to the person skilled in the art simply because they are set forth in the background of the utility model section. Disclosure of utility model The inventors found that if the crease of the insulating paper is insufficient during the formation of the insulating paper, the strength of the insulating paper is lowered, and further that the insulating paper may be jammed when the insulating paper is inserted into the stator core. In addition, the crease of the insulating paper is insufficient, which may cause inaccurate positioning of the insulating paper in the stator core, for example, the end of the insulating paper may protrude from the stator core after the insulating paper is inserted into the stator core, and thus, the stator core and the stator coil may not be reliably insulated and may not be aesthetically pleasing. To address one or more of the above problems or other similar problems, embodiments of the present utility model provide a stator assembly and a motor. The insulating paper in the stator assembly has a first side opposite to the bottom surface of the slot of the stator core, and the first side of the insulating paper is provided with a protrusion, so that the strength of the insulating paper can be increased, the insulating paper is prevented from being blocked when being inserted, the insulating paper is convenient to be inserted into the slot, the insulating paper is convenient to be positioned, and the insulating paper is prevented from protruding out of the stator core in the radial direction. According to an aspect of an embodiment of the present utility model, there is provided a stator assembly including a stator core provided with a plurality of slots penetrating in an axial direction, a stator coil at least a portion of which is received in the slots, and insulating paper disposed in the slots between the stator core and the stator coil, wherein the insulating paper includes a first side portion opposing a bottom surface of the slots, the first side portion being formed with a protrusion protruding toward the bottom surface and extending in the axial direction. In one or more embodiments, the projection extends from an axial one end of the first side portion to an axial other end of the first side portion. In one or more embodiments, the first side includes an inclined portion and a bottom portion, the inclined portion extending from the bottom portion toward the bottom surface and the side surface of the groove to form the protrusion. In one or more embodiments, the groove includes the bottom surface, and first and second sides connected to the bottom surface, a first angle is formed at a connection of the bottom surface and the first side, a second angle is formed at a connection of the bottom surface and the second side, and the protrusion contacts at least one of the first and second angles. In one or more embodiments, the protrusions include first and second protrusions located at both ends of the first side portion in a circumferential direction, respectively. In one or more embodiments, the first side portion is formed with a recess between the first protrusion and the second protrusion. In one or more embodiments, the insulating paper further includes a second side portion and a third side portion, wherein the second side portion is opposite to the first side surface of the slot, the third side portion is opposite to the second side surface of the slot, the first side portion connects the second side portion and the third side portion, Wherein a first crease is formed at the connection of the first side part and the second side part, a second crease is formed at the connection of the first side part and the third side part, The first side is formed with a third crease and a fourth crease, the third crease and the fourth crease are positioned between the first crease and the second crease, The first side part comprises a first inclined part connected with the first crease and the third crease, a second inclined part connected with the second crease and the fourth crease and a bottom connected with the third crease and the fourth crease. In one or more embodiments, a third angle is formed between the first angled portion and the second side portion, A fourth angl