Abstract: There is provided a sump of a dishwasher having a plurality of nozzles for spraying washing water. The sump includes a sump case for storing the washing water, a sump cover covering the sump case, a self-cleaning filter installed on the sump cover to filter foreign objects contained in the washing water stored in the sump case, a washing pump for pumping out the washing water stored in the sump case, a pump lower receiving the washing pump and providing a soil chamber in which the foreign objects contained in the washing water are accumulated, a washing motor installed on the sump case to drive the washing pump, a drain pump installed on the sump case to drain the washing water, and a drain motor for driving the drain pump.

Abstract: There is provided a sump assembly of a dishwasher. The sump assembly includes a self-cleaning filter assembly having a mesh filter, a sump cover for mounting the self-cleaning filter assembly on a top surface thereof, the sump cover having a filter supporting sleeve extending upward for supporting the self-cleaning filter assembly, a sump case seating on an upper portion of the sump cover to reserve washing water, and a fluid passage guide for discharging the washing water stored in the sump case in a predetermined direction, the fluid passage guide having a washing pump disposed therein.

Abstract: The present invention provides a dishwasher, by which an appropriate quantity of water can be stably supplied. The present invention includes a sump storing water therein, a floater received in a chamber having a predetermined volume, the floater ascending according to a rise of a water level of the sump, a switch preventing the water from being oversupplied to the sump, a pushing member lifted by the floater to turn on the switch by pushing the switch, and an off-delay part delaying the switch to be turned off on a descent of the floater.

Abstract: The present invention provides a dishwasher, by which noise and vibration of a wash motor can be lowered and by which endurance of the wash motor can be prolonged and by which an assembly of a wash motor and a sump can be simplified. The present invention includes a sump housing having a heater container containing a heater therein and at least one motor guide rib projected from a bottom of the heater container and a wash motor having a motor housing provided with a rib container containing the at least one motor guide rib therein.

Abstract: A leakage preventing structure of a dishwasher is provided. The structure includes a wash motor with a motor shaft disposed at its center, a sump housing that the motor shaft passes through, and a scaling portion that seals the space between the wash motor and the sump housing. The sealing portion is an aircap that controls the water level of washing water introduced into the aircap by means of air pressure of air inside the aircap, or a sealing member coupled to the motor shaft of the wash motor.

Abstract: A heater assembly for a dryer is stably assembled and reduces noise. The heater assembly for a dryer includes hot wires electrically heated an insulator provided with a groove at the center, having lower and upper portions into which the hot wires are fixed, and a partition plate including an insertion hole into which the insulator is inserted and at least one clamp portion provided at the rim of the insertion hole and fixed into the groove.

Abstract: A dishwasher and a door hinge thereof are provided. The dishwasher and the door hinge include a door cover support plate that aligns a position of a door cover during assembly of the door cover and a door liner.

Abstract: There is provided a sump assembly of a dishwasher. The sump assembly includes a self-cleaning filter assembly having a mesh filter, a sump cover for mounting the self-cleaning filter assembly on a top surface thereof, the sump cover having a filter supporting sleeve extending upward for supporting the self-cleaning filter assembly, a sump case seating on an upper portion of the sump cover to reserve washing water, and a fluid passage guide for discharging the washing water stored in the sump case in a predetermined direction, the fluid passage guide having a washing pump disposed therein.

Abstract: A control method and system for a belt-driven clothes dryer are disclosed. The control system includes a drum containing a load of wet clothes to be dried, a heater heating air flowing into the drum, a motor coupled to the drum by a power transmission system for rotating the drum, and a power supply supplying power to the motor and the heater during a dry operation of the dryer. The control system further includes a moisture sensor outputting a sensor signal during the dry operation, or a photo coupler outputting voltage pulses when the motor is in operation during the dry operation. Then, a microprocessor included in the control system detects a breakage of the power transmission system upon analyzing the sensor signal of the moisture sensor or the voltage pulses generated by the photo coupler. If the microprocessor detects such breakage, it interrupts the dry operation of the clothes dryer.

Abstract: Disclosed is a dryer having an improved arrangement of heating coils. The present invention includes a cabinet, a drum, a motor, and a heater assembly including a heater case having an air passage inside, a plate partitioning the air passage into an upper passage and a lower passage, and first and second coil arrays independently provided to the air passage to alternately cross the plate between the upper and lower passages.

Abstract: Disclosed is a washing machine, in which a drive circuit of the washing machine is prevented from being damaged by a counter electromotive force generated from a wash motor making a precipitate stop. The present invention includes a cabinet, a drum, a motor, and a brake resistance assembly including a case forming an exterior, first and second connect terminals fixed to the case to be connected to an external circuit, first and second bobbins provided in the case, and first and second coils differing in resistance to be wound on the first and second bobbins, respectively.

Abstract: Disclosed is a dryer enabling to switch a starting coil and a driving coil more simply. The present invention includes a cabinet, a drum, a heater, a converting switch, and a centrifugal switch. The centrifugal switch includes a body connected to a shaft of the motor to have loading recesses at an outside, a pair of balance weights having supports wherein one ends of the supports are inserted in the loading recesses, respectively, a pair of the balance weights revolving centering on the inserted one ends to be folded/unfolded, a plate provided to rear ends of the balance weights, and a return spring having both ends hooked on hanging portions of the balance weights to be fixed thereto.

Abstract: Insulator for electric heater which can make a heater coil to expand/contract uniformly, and permits an easy fitting of the heater coil thereto, and washing and drying machine having heater assembly therewith, the insulator including a body part (30) formed of an insulating material, a fixing slot in the body part for fixing the body part (30) to a holding member, a coil seating part at an end of the body part for being inserted in the heater coil (40) for supporting the heater coil (40), and a seating slot between the coil seating part and the body part for inserting the heat coil (40).

Abstract: Brushless motor in a washing machine including a stator having a coil coupled to an upper frame, and a rotor having a lower frame entirely formed of a metal to cover an outer circumference and a bottom of the stator, a plurality of magnets fitted to an inside wall of the lower frame at fixed intervals opposite to the coil of the stator, and a support member formed as one unit with, and at a central portion of the lower frame coupled to a washing water shaft for transmission of a rotating force of the lower frame to the washing water shaft, thereby permitting smooth heat dissipation and drainage from the motor, and shortening a fabrication process and time period.