Abstract: Disclosed herein is a washing machine having the structure to reinforce fastening bosses (100) formed on a front surface of a tub (56) to mount a balance weight (90). The washing machine comprises a tub (56) having a gasket coupling part (80) to which a gasket (50) is coupled, a plurality of fastening bosses (100) formed on a circumference about a central axis of the tub (56) to secure a balance weight (90), and a plurality of ribs (310) to reinforce the fastening bosses (100), wherein at least one of the ribs (310) formed in an outer direction of the tub (56) around each fastening boss (100) is thicker than the ribs (310) formed towards the central axis of the tub (56).

Abstract: A washing machine is provided that includes a tub having an open front side and a closed rear wall, and a drum rotatably mounted within the tub. A portion adjacent to a gate part, which allows resin to be injected in an injection-molding process of the rear wall of the tub, is thicker than other portions, thereby improving inflow of the resin.

Abstract: There are provided a conductivity sensor of a washing water, an installation construction of the conductivity sensor, and a method for controlling the washing machine, which are capable of controlling the washing machine by calculating a hardness of a washing water from a measured conductivity of the washing water.

Abstract: A tub having a structurally strengthened rear wall and a washing machine with the same therein are disclosed. A washing machine includes a bearing housing having a flange part and a tub injection-molded with the bearing housing inserted into a wall thereof, the wall having a recessing part and a projecting part formed on an inner or an outer surface thereof along a circumferential direction, and a circumferential rib or a radial rib formed on the recessing part.

Abstract: A drum washing machine is provided. The drum washing machine includes a tub that stores wash water therein, a drum rotatably mounted within the tub, a motor mounted in a rear of the tub, the motor having a shaft to rotate the drum, a bearing housing inserted into the tub having a hollow portion, which allows the shaft of the motor to pass therethrough, formed in a center thereof, a bearing secured to the hollow of the bearing housing, and an outlet hole that discharges gas or moisture generated in the bearing and a portion adjacent to the bearing outside of the bearing housing. The drum washing machine so constructed has enhanced durability, because it includes the outlet hole provided in the bearing housing where the shaft rotates that prevents moisture or water from remaining in the bearing housing.

Abstract: A washing machine includes a tub made of plastic to store water therein and a drum rotatably installed in the tub to hold laundry therein. A shaft passes through the tub and connects to the drum to transmit driving power from a motor to the drum. A wall having a recessing part and a projecting part is formed on an inner surface or outer surface thereof in a circumferential direction. A bearing housing has a stator fastening part where the stator fastening part has a recessing part and a projecting part corresponding with the recessing part and the projecting part of the wall in a circumferential direction, and a stator of the motor is mounted on the stator fastening part and a rotor of the motor is connected to a rear part of the shaft and surrounding the stator.

Abstract: A tub having a structurally strengthened rear wall and a washing machine with the same therein are disclosed. A washing machine includes a bearing housing having a flange part and a tub injection-molded with the bearing housing inserted into a wall thereof, the wall having a recessing part and a projecting part formed on an inner or an outer surface thereof along a circumferential direction, and a circumferential rib or a radial rib formed on the recessing part.

Abstract: A tub having a structurally strengthened rear wall and a washing machine with the same therein are disclosed. A washing machine includes a bearing housing having a flange part and a tub injection-molded with the bearing housing inserted into a wall thereof, the wall having a recessing part and a projecting part formed on an inner or an outer surface thereof along a circumferential direction, and a circumferential rib or a radial rib formed on the recessing part.

Abstract: A tub having a structurally strengthened rear wall and a washing machine with the same therein are disclosed. A washing machine includes a bearing housing having a flange part and a tub injection-molded with the bearing housing inserted into a wall thereof, the wall having a recessing part and a projecting part formed on an inner or an outer surface thereof along a circumferential direction, and a circumferential rib or a radial rib formed on the recessing part.

Abstract: A tub having a structurally strengthened rear wall and a washing machine with the same therein are disclosed. A washing machine includes a bearing housing having a flange part and a tub injection-molded with the bearing housing inserted into a wall thereof, the wall having a recessing part and a projecting part formed on an inner or an outer surface thereof along a circumferential direction, and a circumferential rib or a radial rib formed on the recessing part.

Abstract: A tub having a structurally strengthened rear wall and a washing machine with the same therein are disclosed. A washing machine includes a bearing housing having a flange part and a tub injection-molded with the bearing housing inserted into a wall thereof, the wall having a recessing part and a projecting part formed on an inner or an outer surface thereof along a circumferential direction, and a circumferential rib or a radial rib formed on the recessing part.

Abstract: The present invention relates to a motor for a washing machine for enhancing rigidity of a rotor frame, easy verification and adjustment of a gap, and improving a cooling performance of the motor. To achieve the objects of the present invention, a motor for a washing machine includes a stator having an AC power applied thereto, a rotor core on an outer side of the stator mounted so as to be rotatable by interaction of electromagnetic force with respect to the stator, a rotor frame arranged to surround the outer side of the stator, rotor core securing means formed along a side of the rotor frame for seating, and securing the rotor core, and preventing the rotor core from moving in up/down directions, strength reinforcing means for improving strength of the rotor frame, and gap verifying means provided to the rotor frame for verifying a gap between the rotor core and the stator.

Abstract: A drum washing machine is disclosed. The drum washing machine according to the present invention includes a tub for storing wash water therein, a drum rotatably mounted within the tub, a motor mounted in rear of the tub, the motor having a shaft to rotate the drum, a bearing housing inserted into the tub with a hollow allowing the shaft of the motor to pass through formed in a center thereof, a bearing secured to the hollow of the bearing housing and an outlet hole for discharging gas or moisture generated in the bearing and the adjacent portion of the bearing to and outside of the bearing housing. The present invention has an advantageous effect of enhancing durability thereof, because the drum washing machine includes the outlet hole provided in the bearing housing where the shaft is rotated to prevent moisture or water from remaining in the bearing housing.

Abstract: Disclosed herein is a washing machine having a hall sensor wire stably secured to a tub through a rear wall of the tub, thereby preventing the hall sensor wire from freely moving due to vibration transmitted from the tub when operating the washing machine. The washing machine comprises a tub installed in a body of the washing machine to contain water, and a fixing bracket positioned on a rear wall of the tub to prevent movement of at least one hall sensor wire connected with a hall sensor serving to detect a speed of a motor installed on the rear wall of the tub.

Abstract: Disclosed herein is a washing machine having the structure to reinforce fastening bosses (100) formed on a front surface of a tub (56) to mount a balance weight (90). The washing machine comprises a tub (56) having a gasket coupling part (80) to which a gasket (50) is coupled, a plurality of fastening bosses (100) formed on a circumference about a central axis of the tub (56) to secure a balance weight (90), and a plurality of ribs (310) to reinforce the fastening bosses (100), wherein at least one of the ribs (310) formed in an outer direction of the tub (56) around each fastening boss (100) is thicker than the ribs (310) formed towards the central axis of the tub (56).

Abstract: A washing machine is disclosed. The washing machine according to the present invention having a tub having a front side opened and a rear wall closed and a drum rotatably mounted within the tub, wherein a portion adjacent to a gate part allowing resin injected therein in injection-molding the rear wall of the tub is thicker than the other portions to improve inflow of the resin. An object of the present invention devised to solve the problem is to provide a tub structure of a washing machine capable of flowing resin smoothly in injection-molding a tub.

Abstract: A structure for cooling a motor of a washing machine is disclosed, which is suitable for improving cooling efficiency of the motor. A structure for cooling a motor of a washing machine, the washing machine provided with a motor assembly including a cylindrical rotor in an inner circumferential surface of a rotor housing, and a cylindrical rotor in an inner circumferential surface of the rotor, is provided with a plurality of holes on a lower surface of the rotor housing forming the stator; and a plurality of blades, each provided in one side of the hole.

Abstract: The present invention is related to a motor for a washing machine, in which an insulator structure is changed so as not to expose a coil to an outside of the stator for preventing accidents of electric shock caused by negligence of safety from occurring in advance, to enhance safety of the motor, and damage to the coil, and which enables to reduce magnetic attraction force and prevent interference between the stator and the rotor caused by the non-uniform gap between the stator and the rotor. To achieve this, the present invention provides a motor for a washing machine including a stator including a substantially annular core having a stack of steel pieces, a coil wound on the core having an AC power applied thereto, and an insulator mounted on an outside surface of the core, the insulator having one edge extended to cover the coil, wherein a plurality of the coils are wound along a circumference of the core, and connected in parallel.

Abstract: The present invention relates to an outer rotor type induction motor mounted on an underside of an outer tub of a washing machine, in which a rotor core and a rotor bushing are insert injection molded with a rotor frame as one body, for simplifying a rotor structure for easy fabrication of the rotor.

Abstract: A structure for cooling a motor of a washing machine is disclosed, which is suitable for improving cooling efficiency of the motor. A structure for cooling a motor of a washing machine, the washing machine provided with a motor assembly including a cylindrical rotor in an inner circumferential surface of a rotor housing, and a cylindrical rotor in an inner circumferential surface of the rotor, is provided with a plurality of holes on a lower surface of the rotor housing forming the stator; and a plurality of blades, each provided in one side of the hole.