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US 11,637,462 B2Granted
Stator and motor including same
AssigneeLG Innotek Co., Ltd.
InventorsJin Su Pyeon, Shung Hun Woo
Life of this patent
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Abstract
An embodiment provides a stator comprising a stator core having a plurality of teeth and coils wound around the teeth, wherein the tooth includes a body around which the coil is wound and a shoe connected to the body, the shoe includes a plurality of grooves and a curvature center of the inner peripheral surface of the shoe is the same as the center of the stator core.
Claims20
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,
- 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, and
- a depth (D) of the groove is 0.175 to 0.325 times a distance (W21) between one end of a first protrusion of one tooth among the plurality of teeth and one end of a second protrusion of another tooth adjacent to the one end of the first protrusion of the one tooth,
- 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 die second surface in a radial direction.
6 more elements
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,
- 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, and
- a depth (D) of the groove is 0.175 to 0.325 times a distance (W21) between one end of a first protrusion of one tooth among the plurality of teeth and one end of a second protrusion of another tooth adjacent to the one end of the first protrusion of the one tooth,
- 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,
- wherein the first surface has a first inclination (θ1) with respect to a side surface of the body, and the second surface has a second inclination (θ2) with respect to the first surface,
- wherein the first inclination (θ1) is an exterior angle, and the second inclination (θ2) is an interior angle, and
- wherein the first inclination (θ1) is in a range of 145° to 155°.
8 more elements
Dependencies are inferred from the claim text.