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US 12,738,803 B2Granted
Motor for laundry apparatus
AssigneeLG Electronics Inc.
InventorsKyeong-Hwan Kim, Seung-Suk Oh, Hyojin Ko, Yoonuk Kim, Jun Young Song
Life of this patent
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Abstract
An embodiment of the present invention relates to a motor for a laundry apparatus, comprising: a stator comprising a core and a coil; and a rotor comprising a magnet and a rotor frame, wherein the rotor frame comprises a base frame, an extension frame, an edge portion, and a suction port disposed on the edge portion. Thus, the heat dissipation performance of the motor can be improved while securing the strength of the rotor frame.
Claims22
A motor for a laundry apparatus, comprising:
- a stator comprising (i) a stator core that has a ring shape and (ii) a coil that is wound around the stator core;
- and
- a rotor comprising (i) a magnet that is disposed outside the stator with an air gap between the magnet and the stator and (ii) a rotor frame that supports the magnet and is configured to rotate about the stator,
- wherein the rotor frame comprises:
- a base frame that faces the coil and is spaced apart from the coil, the base frame having a circular shape,
- an extension frame that is connected to an edge of the base frame and extends along the edge of the base frame in a circumferential direction, wherein the magnet is fixed to an inner circumferential surface of the extension frame, and
- an edge portion disposed at a connection portion between the extension frame and the base frame, the edge portion defining a suction port configured to suction air into the rotor frame based on rotation of the rotor frame.
4 more elements
A motor for a laundry apparatus, comprising:
- a stator comprising (i) a stator core that has a ring shape and (ii) a coil that is wound around the stator core;
- a rotor comprising (i) a magnet that is disposed outside the stator with an air gap between the magnet and the stator and (ii) a rotor frame that supports the magnet and is configured to rotate about the stator;
- and
- a driving shaft configured to receive a rotational force from the rotor frame,
- wherein the rotor frame comprises:
- a shaft connection part disposed at a center of the rotor frame and connected to the driving shaft,
- a base frame that faces the coil and is spaced apart from the coil, the base frame having a circular shape about the center of the rotor frame,
- an extension frame that is connected to an edge of the base frame and extends along the edge of the base frame in a circumferential direction, wherein the magnet is fixed to an inner circumferential surface of the extension frame,
- a lower edge portion disposed at a connection portion between a lower end portion of the extension frame and the base frame, the lower edge portion defining a suction port configured to suction external air into the rotor frame based on rotation of the rotor frame, and
- an upper edge portion that extends radially outward from an upper end portion of the extension frame.
7 more elements
Dependencies are inferred from the claim text.