Motor
AssigneeLG Innotek Co., Ltd.
InventorsDae Ho CHOI, Sang Jin KIM, Gi Chang MOON
Life of this patent
Estimating the term…
Abstract
The present invention can provide a motor including a shaft, a rotor coupled to the shaft, and a stator disposed to correspond to the rotor, wherein the rotor includes a rotor core, a plurality of magnets coupled to the rotor core, and a magnet holder disposed outside the magnets, the rotor core includes protrusions disposed between the adjacent magnets, the magnet holder includes a first part disposed on a side surface of each of the magnets and a second part connected to the first part and disposed on one surface of the magnet, the second part includes holes, and a part of each of the protrusions and a part of the magnet are exposed through one of the holes.
Claims10
A motor comprising:
- a shaft;
- a rotor coupled to the shaft;
- and
- a stator disposed to correspond to the rotor,
- wherein the rotor includes a rotor core, a plurality of magnets coupled to the rotor core, and a magnet holder disposed outside the magnets,
- the rotor core includes protrusions disposed between the adjacent magnets,
- the magnet holder includes a first part disposed on a side surface of each of the magnets and a second part connected to the first part and disposed on one surface of the magnet,
- the second part includes holes, and
- a part of each of the protrusions and a part of the magnet are exposed through one of the holes.
A motor comprising:
- a shaft;
- a rotor coupled to the shaft;
- and
- a stator disposed to correspond to the rotor,
- wherein the rotor includes a rotor core, a plurality of magnets coupled to the rotor core, and a magnet holder disposed outside the magnets,
- the magnets include a first magnet and a second magnet spaced apart from the first magnet in a circumferential direction,
- the rotor core includes protrusions each disposed between the first magnet and the second magnet,
- the protrusion includes a first surface facing the first magnet, a second surface facing the second magnet, and a first region disposed between the first surface and the second surface,
- the first region includes a first portion, a second portion disposed between the first portion and the first surface, and a third portion disposed between the first portion and the second surface,
- a radial length of the first portion is smaller than a radial length of the second portion or the third portion, and
- the magnet holder includes holes axially overlapping the protrusions in an axial direction,
- wherein the first magnet include a first side surface facing the second magnet, the second magnet include a second side surface facing the first side surface, and the first side surface and the second side surface may overlap the hole in the axial direction.
A motor comprising:
- a shaft;
- a rotor coupled to the shaft;
- and
- a stator disposed to correspond to the rotor,
- wherein the rotor includes a rotor core and a plurality of magnets coupled to the rotor core,
- the rotor core includes a first rotor core and a second rotor core disposed in an axial direction from the first rotor core,
- the first rotor core has a first surface in contact with the first rotor core and includes a protrusion disposed on the first surface,
- the second rotor core has a second surface in contact with the first surface and includes a first groove disposed in the second surface and a second groove disposed in a circumferential direction from the first groove, and
- the protrusion is disposed in the second groove,
- wherein the second rotor core include a first hole and a second hole spaced apart from the first hole in the circumferential direction, and the first groove and the second groove is disposed between the first hole and the second hole in the circumferential direction.
Dependencies are inferred from the claim text.