Patent ID: 11955861
Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A stator of a brushless motor, comprising a stator core, an insulation frame arranged on the stator core, and a plurality of windings wound around the insulating frame,
wherein, the stator core comprises a ring-shaped yoke part, and a pole part mounted to a radial inner side of the yoke part;
the pole part comprises a plurality of teeth spaced-apart from each other along a circumferential direction, and a ring-shaped portion connected to radial inner sides of the teeth;
radial outer sides of the teeth abut against the radial inner side of the yoke part;
the insulating frame is arranged on the pole part;
a plurality of power terminals are fixed to one axial end of the insulating frame and respectively electrically connected to the windings,
the ring-shaped portion comprises a plurality of pole shoes respectively corresponding to the teeth, and a plurality of bridges configured to connect adjacent pole shoes;
the ring-shaped portion further comprises a plurality of holes, each of which is formed between two axially adjacent bridges, and
the insulating frame comprises an inner ring corresponding to the ring-shaped portion and a plurality of branches respectively corresponding to the teeth, the windings are wound on the branches, the insulating frame further comprises a plurality of protrusions formed at a radial inner side of the inner ring corresponding to the holes, and the protrusions are received in the corresponding holes.