Patent ID: 11876403
Assignee: LG INNOTEK CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B | IPC H

Claim 0:
1. A motor comprising:
a shaft;
a rotor to which the shaft is coupled; and
a stator disposed on an outer side of the rotor,
wherein the stator includes a stator core having a plurality of teeth, and a coil wound around each of the teeth, and
each of the teeth includes a body part around which the coil is wound, a protrusion disposed on an end portion of the body part, and a groove formed to be concave on an inner surface of the protrusion,
wherein a side surface of the protrusion includes a first surface extending from the body part and a second surface extending from the first surface, and
the depth (D) of the groove is 0.7 to 1.3 times a length (L20) of the second surface in a radial direction.