Slim-type motor having a heat-dissipating structure, and washing machine adopting a direct drive system
AssigneeAmotech Co., Ltd.
InventorByoung Soo Kim
Life of this patent
Estimating the term…
Abstract
A slim type motor for a washing machine having a direct drive system and having a heat radiating structure includes: a stator in which stator cores around which coils are wound are disposed in an annular form in an annular stator support whose central portion is open, in order to emit heat generated in the inside of the motor to the outside; a rotor in which a number of permanent magnets are arranged in a back yoke mounted on a circular rotor support, to thus form an air gap with respect to the stator; and a rotating shaft that is coupled to the central portion of the rotor support and is driven by a torque of the rotor.
Claims13
A slim type motor having a heat radiating structure for a washing machine having a direct drive system, the slim type motor comprising:
- a stator in which stator cores around which coils are wound are disposed in an annular form in an annular stator support, wherein the annular stator support includes an outer circumferential edge portion and an inner circumferential edge portion defining a circular opening in the annular stator support in order to emit heat generated in the inside of the motor to the outside, the circular opening of the annular stator support being completely open;
- a rotor in which a plurality of permanent magnets are arranged in a back yoke mounted on a circular rotor support, to thus form an air gap with respect to the stator;
- a rotating shaft that is coupled to the central portion of the rotor support and is driven by a torque of the rotor;
- and
- a plurality of bolting-couplers that are respectively extended from the outer circumferential edge portion of the annular stator support and include bolt-coupling holes through which bolts are fitted to couple the annular stator support directly to a tub of the washing machine,
- wherein the stator cores are supported by the annular stator support and held in place at the annular stator support in such a way that the rotor can be operatively accommodated inside a space provided by the annular stator support and the tub of the washing machine.
A direct drive washing machine having a direct drive system, the direct drive washing machine comprising:
- a tub;
- a stator in which stator cores around which coils are wound are disposed in an annular form in an annular stator support, wherein the annular stator support includes an outer circumferential edge portion and an inner circumferential edge portion defining a circular opening in the annular stator support in order to emit heat generated in the inside of the motor to the outside, the circular opening of the annular stator support being completely open;
- a rotor in which a plurality of permanent magnets are arranged in a back yoke mounted on a circular rotor support, to thus form an air gap with respect to the stator;
- and
- a rotating shaft whose front end is coupled to the tub and whose rear end is coupled to the central portion of the rotor support and that is driven by a torque of the rotor;
- and
- at least one pair of bearings that are mounted in the tub in order to rotatably support the rotating shaft,
- wherein a plurality of bolting-couplers respectively extended from the outer circumferential edge portion of the annular stator support and include bolt-coupling holes through which bolts are fitted to couple the annular stator support directly to the tub of the washing machine,
- wherein the stator cores are supported by the annular stator support and held in place at the annular stator support in such a way that the rotor can be operatively accommodated inside a space provided by the annular stator support and the tub of the washing machine.
Dependencies are inferred from the claim text.