Abstract: The present invention provides A motor comprising: a shaft; a rotor including a hole in which the shaft is disposed; and a stator outside the rotor, wherein the rotor comprises a rotor core and a magnet, wherein the rotor core comprises: a main body; a pocket which is formed in the main body and in which the magnet is disposed; first barriers extending from both sides of the pocket; and second barriers formed between an inner circumferential surface of the main body and an outer circumferential surface of the main body, wherein a center (C11) of the second barrier has a certain arrangement angle (?) in a circumferential direction from a first line (L11) passing through a center (CC) of the main body and a center of a width (W) of the magnet.

Abstract: In an embodiment, disclosed is a motor comprising: a stator; a rotor disposed to correspond to the stator; and a shaft coupled to the rotor, wherein the rotor comprises: a rotor core including a yoke and a plurality of rotor teeth arranged on the yoke so as to spaced apart in the circumferential direction; a plurality of magnets arranged between the rotor teeth; and a can disposed on the rotor core on which the plurality of magnets are arranged, the can includes a first can having a hole and a second can having a protruding part coupled to the hole, and the protruding part is disposed to face the outer surface of the magnet. Therefore, the motor uses the protruding part of the can so as to inhibit the separation of the magnets, inhibit the leakage of flux, and be implemented to be more compact than a conventional spoke-type motor. In addition, the motor can inhibit the leakage of magnetic flux that flows toward the shaft.

Abstract: An embodiment relates to a rotor and a motor including the same, the rotor comprising: a rotor core; coils wound around the rotor core; covers respectively arranged at the upper part of the rotor core, wherein the cover includes: a main body disposed at the rotor core; a plurality of blades arranged on the upper surface of the main body; and at least two first protruding parts protruding in the axial direction from the upper surface of the main body. Therefore, the rotor and the motor including the same can perform a balance correction operation.

Abstract: The present invention provides an electric pump, the electric pump comprising: a motor unit which includes a shaft, a rotor coupled to the shaft, and a stator disposed outside the rotor; a pump unit which includes a first rotor including a first lobe coupled to the motor unit and having a plurality of gear teeth, and a second rotor disposed outside the first rotor and including a second lobe; and a second cover including a second surface on which the pump unit is disposed, wherein the second surface has a second suction port and a second discharge port disposed thereon, and the second suction port provided on the second surface includes a third protrusion protruding to the inside of the second suction port. The angle formed by a first line connecting the center of the first rotor and the center of the second rotor, and a second line connecting the center of the first rotor and a distal end of the third protrusion is inversely proportional to the number of gear teeth of the first lobe.

Abstract: The present invention provides A motor comprising: a shaft; a rotor including a hole in which the shaft is disposed; and a stator outside the rotor, wherein the rotor comprises a rotor core and a magnet, wherein the rotor core comprises: a main body; a pocket which is formed in the main body and in which the magnet is disposed; first barriers extending from both sides of the pocket; and second barriers formed between an inner circumferential surface of the main body and an outer circumferential surface of the main body, wherein a center (C11) of the second barrier has a certain arrangement angle (?) in a circumferential direction from a first line (L11) passing through a center (CC) of the main body and a center of a width (W) of the magnet.

Abstract: A rotor may include a first rotor core and a second rotor core. The first rotor core includes a first core body and a first teeth protruding from an outer circumferential surface of the first core body. and the second rotor core includes a second core body and a second teeth protruding from an outer circumferential surface of the second core body. Each of the first teeth includes a first extension protruding axially in a first direction, and each of the second teeth includes a second extension protruding axially in a second direction opposite the first direction. The first extension includes a first protrusion provided on a first inner circumferential surface of the first extension, and the second extension includes a second protrusion provided on a second inner circumferential surface of the second extension.

Abstract: Provided is a rotor including the first extension includes a first protrusion disposed on the inner circumferential surface of the first extension, the first body includes a first groove formed in the outer circumferential surface of the first body, the second extension includes a second protrusion disposed on the inner circumferential surface of the second extension, the second body includes a second groove formed in the outer circumferential surface of the second body, the first body and the second body are stacked and coupled to each other, the first protrusion is disposed in the second groove, and the second protrusion is disposed in the first groove.

Abstract: A rotor comprises: a first motor which comprises a first rotor body and a plurality of first teeth formed on an outer circumferential surface of the first rotor body; a second rotor which comprises a second rotor body stacked on and coupled to the first rotor body and a plurality of second teeth formed on an outer circumferential surface of the second rotor body; a first coil which is wound around the first teeth; a second coil which is wound around the second teeth; a first insulator which is disposed between the first teeth and the first coil; and a second insulator which is disposed between the second teeth and the second coil.

Abstract: The present invention provides an electric pump, the electric pump comprising: a motor unit which includes a shaft, a rotor coupled to the shaft, and a stator disposed outside the rotor; a pump unit which includes a first rotor including a first lobe coupled to the motor unit and having a plurality of gear teeth, and a second rotor disposed outside the first rotor and including a second lobe; and a second cover including a second surface on which the pump unit is disposed, wherein the second surface has a second suction port and a second discharge port disposed thereon, and the second suction port provided on the second surface includes a third protrusion protruding to the inside of the second suction port. The angle formed by a first line connecting the center of the first rotor and the center of the second rotor, and a second line connecting the center of the first rotor and a distal end of the third protrusion is inversely proportional to the number of gear teeth of the first lobe.

Abstract: An embodiment relates to a rotor and a motor including the same, the rotor comprising: a rotor core; coils wound around the rotor core; covers respectively arranged at the upper part of the rotor core, wherein the cover includes: a main body disposed at the rotor core; a plurality of blades arranged on the upper surface of the main body; and at least two first protruding parts protruding in the axial direction from the upper surface of the main body. Therefore, the rotor and the motor including the same can perform a balance correction operation.

Abstract: A rotor includes a first rotor core and a second rotor core that are axially stacked; the first rotor core includes a first core body and a first teeth protruding from an outer circumferential surface of the first core body; the second rotor core includes a second core body and a second teeth protruding from an outer circumferential surface of the second core body; wherein each of the first teeth includes a first extension protruding axially in a first direction past a first surface of the first core body, and each of the second teeth includes a second extension protruding axially in a second direction opposite the first direction past a first surface of the second core body, wherein the first extension includes a first protrusion provided on a first inner circumferential surface of the first extension, wherein the second extension includes a second protrusion provided on a second inner circumferential surface of the second extension, wherein the first protrusion includes a third inner circumferential surface

Abstract: A rotor comprises: a first motor which comprises a first rotor body and a plurality of first teeth formed on an outer circumferential surface of the first rotor body; a second rotor which comprises a second rotor body stacked on and coupled to the first rotor body and a plurality of second teeth formed on an outer circumferential surface of the second rotor body; a first coil which is wound around the first teeth; a second coil which is wound around the second teeth; a first insulator which is disposed between the first teeth and the first coil; and a second insulator which is disposed between the second teeth and the second coil.

Abstract: A rotor includes a first insulator coupled to a first rotor core, and a second insulator coupled to a second rotor core. The first rotor core may include first teeth protruding from a first outer circumferential surface thereof, and the second rotor core may include second teeth protruding from a second outer circumferential surface thereof. The first insulator may include a body configured to surround the first teeth. A first outer guide may be formed at an outside of the body with respect to a radial direction of the first rotor core, and the second insulator may include a body configured to surround the second teeth. A second outer guide may be formed at an outside of the body with respect to a radial direction of the second rotor core. The first teeth and the second teeth may be disposed at different positions with respect to a circumferential direction.

Abstract: Provided is a rotor including the first extension includes a first protrusion disposed on the inner circumferential surface of the first extension, the first body includes a first groove formed in the outer circumferential surface of the first body, the second extension includes a second protrusion disposed on the inner circumferential surface of the second extension, the second body includes a second groove formed in the outer circumferential surface of the second body, the first body and the second body are stacked and coupled to each other, the first protrusion is disposed in the second groove, and the second protrusion is disposed in the first groove.

Abstract: Provided is a rotor including a first rotor body including a first protrusion protruding from an outer circumferential surface thereof and a second rotor body stacked on and coupled to the first rotor body and including a second protrusion disposed at a position different from the first protrusion with respect to a circumferential direction and protruding from an outer circumferential surface thereof, wherein a height of the first protrusion is formed to be greater than a height of the first rotor body, and a height of the second protrusion is formed to be greater than a height of the second rotor body. The rotor is formed so that coils are wound around the respective protrusions that are divided and have relatively wide winding spaces unlike a rotor integrated with protrusions around which coils are wound, thereby increasing a coil space factor and providing an effect of facilitating a winding task.

Abstract: A rotor that may include a first rotor core, a second rotor core disposed below the first rotor core, a first insulator coupled to the first rotor core, and a second insulator coupled to the second rotor core. The first rotor core may include first teeth protruding from a first outer circumferential surface thereof, and the second rotor core may include second teeth protruding from a second outer circumferential surface thereof. The first insulator may include a body configured to surround the first teeth. A first outer guide may be formed at an outside of the body with respect to a radial direction of the first rotor core, and the second insulator may include a body configured to surround the second teeth. A second outer guide may be formed at an outside of the body with respect to a radial direction of the second rotor core. The first teeth and the second teeth may be disposed at different positions with respect to a circumferential direction.

Abstract: Provided is a rotor including a first rotor body including a first protrusion protruding from an outer circumferential surface thereof and a second rotor body stacked on and coupled to the first rotor body and including a second protrusion disposed at a position different from the first protrusion with respect to a circumferential direction and protruding from an outer circumferential surface thereof, wherein a height of the first protrusion is formed to be greater than a height of the first rotor body, and a height of the second protrusion is formed to be greater than a height of the second rotor body. The rotor is formed so that coils are wound around the respective protrusions that are divided and have relatively wide winding spaces unlike a rotor integrated with protrusions around which coils are wound, thereby increasing a coil space factor and providing an effect of facilitating a winding task.