Abstract: Provided are a motor and a washing machine using the motor. The motor has a stator, a rotor, a rotor frame, a permanent magnet, and a comb polarizing ring. The rotor rotates against the stator. The permanent magnet is installed on the rotor frame and has protrusions with alternating North and South polarities. The comb polarizing ring includes a plurality of teeth disposed between the protrusions of the permanent magnet, and is formed of a material with a magnetism that is weaker than a magnetism of the protrusions.

Abstract: A motor having a structure configured to reduce magnetic resistance between a rotor and a stator, a method for manufacturing the motor, and a washing machine using the motor are disclosed. The motor includes a rotor, and a stator co-operating with the rotor. The stator includes a main core and an auxiliary core. The main core includes a base and a plurality of teeth protruding from the base. The auxiliary core is structured to prevent the occurrence of magnetic resistance from being generated from spaces, defined between adjacent teeth, when the stator co-operates with the rotor.

Abstract: An induction motor for a drum washing machine and a drum washing machine using the same are disclosed. An induction motor for a drum washing machine includes: a concentrated winding stator with a plurality of teeth that project from a circumference thereof and a coil wounded around each tooth; a rotor frame connected to a shaft directly fixed to a rotatable drum in the drum washing machine, wherein the concentrated winding stator is located in the rotor frame; and a rotor conductor that generates induced currents in closed circuits along a circumferential direction of the rotor frame when electric currents are applied to the coils so that the rotor frame rotates, wherein the closed circuit is skewed.

Abstract: A driving device and a method of driving a washing machine is disclosed. The efficiency of the motor of the washing machine is enhanced and the capacity of an inverter is reduced thereby reducing manufacturing costs. The driving device includes a variable motor, of which the rotational speed varies to apply a driving force to a drum to rotate, an inverter to convert a direct current voltage into an alternating current voltage and to vary a voltage applied to the variable motor, and an inverter driver to compare a control signal with a carrier to drive the inverter by pulse width modulation. A frequency of the carrier wave is varied for the pulse width modulation.

Abstract: The operating apparatuses of a washing machine and the methods on that are renovated. The afore-mentioned washing machine is including: a memory that the reference signals are saved in order to operate a motor in a best condition according to each of the condition of the torque and noise; a control unit which generates the switching signals as calling the reference signals which are different each other according to the strokes of a washing machine, and comparing with the carrier signals; an inverter which generates a motor operating signal as an external power is switched by a switching signal; a motor which is rotated by a motor operating signal; and a revolving screen of a washing machine which is operated by a motor.

Abstract: The present invention provides a dishwasher, by which an assembly of a sump and washing motor is structurally improved. The present invention includes a sump storing water therein, the sump having a shaft coupling hole coupled with a washing motor shaft, at least one or more guide pieces outwardly projected from one surface of the sump, and a washing motor having a guide groove receiving the at least one or more guide pieces therein.

Abstract: The present invention provides a washer, damper thereof, and control method thereof, by which noise is reduced by adjusting a damping force of the damper in a manner of turning on/off power of the damper according to an oscillation frequency of a vibrating body such as a washer. The control method reduces noise by supplying power to a damper in an excessive vibration state of a vibrating body such as a washer or by cutting off the power supplied to the damper in a normal vibration state of the vibrating body.

Abstract: A refrigerator includes a cold water dispenser mounted in the door thereof to enable water to be dispensed without the door being opened. The dispenser includes a housing mounted in the door and forming a dispensing chamber. A manually actuable lever is swingably mounted to the housing and is accessible exteriorly of the door. A hollow cylinder is mounted to the housing and extends into the refrigerating compartment. The cylinder forms a water conduit having a water outlet in the chamber and an upwardly facing water inlet spaced from the outlet. A slide is reciprocable in the cylinder and is pushed by swinging the lever. A water storage vessel is mounted on the cylinder so that a valved water passage on a lower portion thereof communicates with the water inlet. By pushing the lever, the slide is pushed to lift the valve to enable water to travel from the vessel to the water outlet.