Abstract: A washing machine for washing laundry is provided. The washing machine includes a tub to hold washing water, a drum in the tub to hold laundry, a rotational shaft connected to a rear surface of the drum, a tub back, which forms a rear side of the tub and through which the rotational shaft passes, a bearing housing that supports the rotational shaft, and a suspension that buffers and supports the bearing housing. A vibration sensor senses vibration of a structure supported by the suspension, thereby enabling control of rotation of the drum based on the sensed vibration.

Abstract: A washing machine includes a laundry drum which is rotatably mounted inside a tub. The tub is connected in a fixed manner within a surrounding housing. The axis of rotation of the laundry drum is variable in height with respect to the tub. Elastic elements are positioned outside the tub to suspend the laundry drum together with a drive unit within the housing in an oscillating manner. The presence of a relatively high water consumption of the washing machine can be avoided and the relative position of the laundry drum with respect to the tub can be adjusted by providing a position-adjusting device, by which the height and/or the angle of the axis of rotation can be adjusted within limits, and which engages with a part that is connected in a fixed manner to the bearing for the drive shaft of the laundry drum.

Abstract: A control method of a laundry machine is disclosed. The control method of a laundry machine comprising a balancer includes an unbalance sensing step, wherein the unbalance sensing step recognizes an unbalancemaximum value and an unbalanceminimum value of an unbalance wave and the unbalance sensing step determines an average value of the two unbalance maximumvalue and unbalanceminimum value to be of the unbalance generated in a drum provided in the laundry machine.

Abstract: The present disclosure relates to a tubless washing machine, and more particularly, to a tubless washing machine including only a drum without a tub containing wash water.

Abstract: A laundry treatment machine includes a drum, a motor to rotate the drum, and a driving unit to drive the motor, wherein the driving unit includes an inverter to convert direct current (DC) voltage into alternating current (AC) voltage and to output the AC voltage to the motor and an inverter controller to control the inverter to supply an alignment current to the motor so as to align the motor during a starting operation of the motor and to supply a torque current for rotating the motor to the motor together with the alignment current after the motor is aligned. Such a laundry treatment apparatus prevents a reverse rotation phenomenon of the drum due to load.

Abstract: Disclosed is a drum type washing machine, including a housing; a tub in the housing and having an opening; a drum in the tub; a rotary driving member in the housing configured to provide motive power to the drum and/or to rotate the drum; a tilting driving member between a side wall of the tub and the housing to provide the motive power to tilt the tub; and one or more damping members between the side wall of the tub and the housing to support the tub. The damping member(s) can be varied by tilting the tub.

Abstract: The present invention relates to a method for assembling a motor set that includes: coupling a rotor housing having a plurality of operating holes to a stator having shaft bushings with holes formed therein through the operating holes, thereby making the holes to be seen through the operating holes; coupling the holes of the stator associated with the rotor housing to stator assembly holes of a motor set assembly, the holes of the stator being aligned with the stator assembly holes of the motor set assembly; and inserting rivets into the holes through the operating holes and coupling the rivets to the stator assembly holes.

Abstract: A motor for washing machines having a first insulator of the motor which surrounds a lower portion of a stator core of a stator of the motor and includes a ring-shaped mounting unit including a plurality of connection bosses so as to mount the stator on a tub of a washing machine, and at least one heat dissipation hole is provided on the mounting unit, thereby improving a cooling effect of the stator core.

Abstract: A laundry machine is provided that includes a tub to receive wash water, a drum rotatably disposed in the tub, a shaft connected to the drum, a bearing housing to support the shaft, a tub back including a rim that extends in a front to rear direction and coupled to the bearing housing at a front thereof, a rear gasket coupled to the rim of the tub back, and a suspension configured to reduce vibration of the drum. The rear gasket is connected between the tub back and the tub rear.

Abstract: The present application relates to a laundry machine for washing laundry, including a tub for holding washing water, the tub including at least one fastener for fastening and wiring a wire harness along an outside surface thereof, a drum in the tub for holding laundry, a rotation shaft connected to a rear surface of the drum, a tub back which forms a rear side of the tub and through which the rotation shaft passes, a bearing housing for supporting the rotation shaft, a rear gasket connected between the tub and the tub back, and a suspension unit for supporting the bearing housing.

Abstract: Disclosed herein is a washing machine that is capable of increasing a frictional force between an outer diameter of a rotary shaft and an inner race of a bearing to prevent the sliding between the rotary shaft and the bearing due to a gap between the outer diameter of the rotary shaft and the inner race of the bearing, thereby preventing creep noise from the rotary shaft. The washing machine includes at least one elastic member disposed between the outer diameter of the rotary shaft and the inner race of the bearing to prevent noise due to the sliding between the rotary shaft and the bearing.

Abstract: A washing machine in accordance with the present invention includes a mounting member disposed between a stator and a bearing housing. Thus, when a motor is rotated according to an operation of the washing machine, the transmission of vibration, which is generated by a repulsive force of the stator, to the bearing housing can be reduced efficiently. Accordingly, a tub coupled to the bearing housing can be prevented from vibrating due to the vibration of the stator, and noise due to the vibration of the tub can be reduced.

Abstract: A dynamic balancer device for a laundry treating appliance includes, among other things, a first raceway piece having an L-shaped cross section defining a first annular channel and a second raceway piece having an L-shaped cross section defining a second annular channel. The first raceway piece is attached to the second raceway piece with the first annular channel facing the second annular channel to define a raceway. The dynamic balancer device also includes a mass disposed in the annular raceway and movable therein.

Abstract: Disclosed herein are a motor usable with a washing machine to assure interchangeability of constituent elements thereof and a washing machine having the same. The motor includes a stator mounted to a tub of the washing machine, and a rotor to rotate a drum of the washing machine. The stator includes a stator core, first and second insulators arranged to cover the stator core, and a plurality of mounts to couple the stator to the tub. The plurality of mounts is selectively provided at one of the first insulator and the second insulator.

Abstract: The invention relates to a housing device provided with a system for detecting the load applied to an element arranged in the housing, an internal part configured in such a way as to hold said element, and an external part for fixing the device to a mechanical group, the internal part being connected to the external part by at least two deformable connection parts in such a way that the internal part can be displaced in relation to the external part under the action of a load applied to the element. The system for detecting the applied load comprises a means for directly detecting the displacement of one of the parts, internal or external, in relation to the other part, external or internal, under the action of a load applied to the element.

Abstract: An exemplary washing machine appliance includes a cabinet, a tub positioned within the cabinet, a drum rotatably mounted within the tub, a balancing apparatus configured to offset an imbalance created by articles in the drum, and a motor in mechanical communication with the drum. The motor is configured for selectively rotating the drum within the tub. The washing machine appliance includes a controller configured to perform operations. The operations include receiving a signal indicative of a speed of the motor. The operations include determining a deviation of the speed of the motor from a target motor speed and comparing the deviation to one or more threshold values. The operations include determining whether to perform a rebalancing process or a spin out process based on the comparison of the deviation to the one or more threshold values.

Abstract: A method for operating a washing machine appliance is provided. The method includes determining a power delivered to a motor of the washing machine appliance while an angular velocity of a drum of the washing machine appliance is increasing. The method also includes establishing a slope of the power delivered to the motor. The slope of the power delivered to the motor is monitored in order to establish if the slope of the power delivered to the motor exceeds a threshold value.

Abstract: Disclosed herein are a motor usable with a washing machine to assure interchangeability of constituent elements thereof and a washing machine having the same. The motor includes a stator mounted to a tub of the washing machine, and a rotor to rotate a drum of the washing machine. The stator includes a stator core, first and second insulators arranged to cover the stator core, and a plurality of mounts to couple the stator to the tub. The plurality of mounts is selectively provided at one of the first insulator and the second insulator.

Abstract: One exemplary embodiment of the present disclosure is directed to a motor assembly for a washing machine. The motor assembly includes a rotor and a stator. The stator includes an inner diameter and an outer diameter with the inner diameter including an insulator. The insulator defines a fastening opening for joining the stator to the washing machine. The insulator includes a locating pin that is separate and in a different plane from the fastening opening and configured to mate with a bearing retainer in the washing machine.

Abstract: The present invention relates to a laundry treating apparatus (100) including a cabinet (1) having an introduction opening (11) for placing in, and taking out laundry there through, a tub (2) in the cabinet (1) having a tub opening (21) in communication with the introduction opening (11), a dram (3) rotatably provided in the tub (2) to have a drum opening (31) in communication with the tub opening (21) for holding the laundry, and a drum supporter (H, L) for levitating the dram (3) within the tub (2) with repulsive force between a permanent magnet provided to the tub (2) and a permanent magnet provided to the drum (3).

Abstract: A laundry treating apparatus may include a tub, a drum, a driving system including a bearing housing and a driving motor for rotating a rotation shaft of the drum, supporting devices extending between a lower surface of the cabinet and the bearing housing, and a plurality of dampers installed between the supporting devices and the lower surface of the cabinet. The plurality of dampers may include first dampers extending inward from a front portion of the supporting devices toward the lower surface of the cabinet, and second dampers extending downward from the supporting devices toward the rear side of the cabinet. This arrangement may prevent vibration generated during rotation of the drum from being transferred to the tub, and thus an additional component for reducing vibration of the tub may not be required. Thus, the laundry treating apparatus may have a larger capacity within a fixed size of cabinet.

Abstract: A washing machine includes a main body defining an outer appearance, a tub disposed within the main body, a main drum rotatably mounted in the tub, a sub drum mounted in the main drum to be relatively rotatable with respect to the main drum, an outer shaft for rotating the main drum, an inner shaft for rotating the sub drum, being disposed inside the outer shaft, and a driving motor having a stator, an outer rotor connected to the inner shaft that is rotatable outside the stator, and an inner rotor connected to the outer shaft that is rotatable inside the stator, wherein the driving motor independently drives the main drum and the sub drum.

Abstract: A drum type washing machine is provided. The washing machine may include a tub, a drum, a motor rotating the drum, bearing housings housing bearings to support a rotation shaft, a suspension connected to the bearing housings and a cabinet to mitigate vibration, a bracket coupled to the bearing housings, and a gasket installed between the bracket and the tub. Such an arrangement may allow volumes of the tub and the drum may be increased without increasing the volume of the cabinet.

Abstract: A tub for a washing machine appliance is configured to create a tangential discharge of fluid from the tub. A sump portion is configured so that fluid is ejected from a main portion of the wash tub along a direction tangential to the circular direction of rotation of the wash basket. A drain outlet is connected to the sump portion and can be positioned with an opening aligned with the tangential discharge so as to facilitate the movement of fluid into the drain outlet.

Abstract: A washing machine includes a main body defining an outer appearance, a tub disposed within the main body, a main drum rotatably mounted in the tub, a sub drum mounted in the main drum to be relatively rotatable with respect to the main drum, an outer shaft for rotating the main drum, an inner shaft for rotating the sub drum, being disposed inside the outer shaft, and a driving motor having a stator, an outer rotor connected to the inner shaft that is rotatable outside the stator, and an inner rotor connected to the outer shaft that is rotatable inside the stator, wherein the driving motor independently drives the main drum and the sub drum.

Abstract: Disclosed is a laundry treatment apparatus. The laundry treatment apparatus includes a drum rotatably placed in a cabinet defining an external appearance of the laundry treatment apparatus, a housing secured to the drum, a receiving space defined in the housing, a balancing unit movably received in the receiving space, a housing power line installed in the receiving space to extend in a movement path of the balancing unit, the housing power line coming into contact with the balancing unit, and a power supply unit to supply power to the balancing unit through the housing power line.

Abstract: A washing machine actively resolving unbalancing is provided. The washing machine includes: a drum accommodating laundry and configured to be rotatable; a balancing unit moving along the circumference of the drum and changing the center of gravity of the drum; and a wireless power transmission unit wirelessly supplying power to the balancing unit.

Abstract: A washing machine includes a balancer to offset unbalanced load generated during rotation of a drum, wherein the balancer includes a balancer housing mounted at the drum, the balancer housing having an annular channel defined therein, a balancing module disposed in the annular channel such that the balancing module is movable when electric power from a power source outside a cabinet is supplied to the balancing module, a conductive film, one side of which is attached to an inside of the balancer housing and the other side of which is provided with a conductive rail to supply electric power to the balancing module, and an electric wire to electrically connect the power source outside the cabinet to the conductive rail.

Abstract: A washing machine is provided. The washing machine includes a cabinet having an opening, a tub placed within the cabinet, a drum rotatably placed within the tub, a gasket connecting the tub and the cabinet to each other to reduce vibration of the tub to be transmitted to the cabinet during rotation of the drum, and an injection device configured to inject wash water into the tub. The injection device includes an injection nozzle into which wash water is introduced, the injection nozzle penetrating the gasket, an injection guide configured to guide wash water introduced through the injection nozzle so as to inject the wash water, and a fastener penetrating the gasket to fix a position of the injection nozzle. The washing machine configuration ensures easy coupling of the injection device and prevent change in the direction of the injection device.

Abstract: A drum type washing machine is provided. The drum type washing machine may include a cabinet, a tub fixed to an inner side of the cabinet, a drum rotatably arranged in the tub, and a driving motor positioned at a rear side of the drum for generating a driving force that rotates the drum. The washing machine may also include a supporting plate to rotatably support a rotational shaft extending between the motor and the drum, and a plurality of supporters connected between the supporting plate and the cabinet. Such an arrangement may increase washing capacity by increasing a diameter of the drum without increasing an external size of the cabinet.

Abstract: A drum type washing machine is provided. The washing machine may include a tub, a drum, a motor rotating the drum, bearing housings housing bearings to support a rotation shaft, a suspension connected to the bearing housings and a cabinet to mitigate vibration, a bracket coupled to the bearing housings, and a gasket installed between the bracket and the tub. Such an arrangement may allow volumes of the tub and the drum may be increased without increasing the volume of the cabinet.

Abstract: The body of the motor (2), which is outside of the tub (2.2) has coils (1.1) used as a fixed stator of an electric motor (2). The drum (2.1) which rotates inside the tub (2.2) has natural permanent magnetic bars (2.1.1) used as a rotor (2.1) of a direct as current electric motor. In this way, there is no need to use additional electric motor and connection parts for working of washing machine.

Abstract: A washing machine including a vibration reduction member formed in a stator is provided. Therefore, when a motor rotates according to operation of the washing machine, delivery of a vibration due to a repulsive force of the stator to a bearing housing can be efficiently reduced. Further, a vibration of a tub fastened to the bearing housing due to the vibration is prevented and noise due to the vibration of the tub is reduced.

Abstract: A sensor for determining the mode or cycle of a washing machine appliance is provided. The sensor detects the position of a clutch mechanism that is used to shift a wash basket between a spin mode and a wash or rinse mode. The sensor can provide a signal to a controller of the appliance to identify the position of the clutch.

Abstract: A washing machine with a direct drive motor system including a tub, a drum rotatably mounted inside the tub, a shaft connected to the drum, and a direct drive motor comprising a rotor assembly fastened to the shaft and including magnets positioned in a circumferential direction, and a stator assembly. The stator assembly includes a plurality of magnetic cores and a disc-shaped element including a plurality of finger-shaped portions. Each of the finger-shaped portions has one of the plurality of magnetic cores secured thereto.

Abstract: A laundry treatment apparatus is provided comprising a cabinet having a prescribed shape; a supporter provided in the cabinet; a drum configured to rotate and provided on the supporter, the supporter supporting a circumferential portion of the drum, a cross section of the drum being a simple closed curve where first distance between a rotational axis of the drum and a first location on an inner surface of the drum is different from second distance between the rotational axis of the drum and a second location on the inner surface of the drum; and a motor to rotate the drum.

Abstract: A stator of an electric motor and a washing apparatus having the same are disclosed. The stator includes a stator core, which has a plurality of bases stacked one above another after being wound, each base having a plurality of poles formed at one side surface thereof and a plurality of notches formed at the other side surface thereof. Each base is divided into at least two parts to be assembled with one another.

Abstract: A laundry machine that treats laundry housed in a rotating drum is disclosed. The laundry machine includes a cabinet (110), a tub (120) provided in the cabinet (110) to store wash water, a drum (130) rotatably provided in the tub (120) to house laundry, an angle change device (170) to change a tilting angle of a rotation shaft (144) of the drum (130), and a controller to control an operation of the angle change device (170) and a rotating operation of the drum (130) in a plurality of rotation angle modes.

Abstract: A drum type washing machine including a balancer capable of rapidly reducing vibration of a spin tub. The drum type washing machine includes a spin tub which is rotated by receiving rotational force from a driving motor through a rotating shaft, a rear balancer having an annular shape and being coupled to the spin tub, and a shaft flange provided at a center portion thereof with the rotating shaft and coupled to the spin tub so as to uniformly transfer the rotational force to the spin tub. The rear balancer is supported on a rear surface of a rear cover by the shaft flange. Thus, the balls accommodated in the balancer are prevented from moving out of the balancer, even if the balancer is broken due to long-period use.

Abstract: A pneumatic variable damping device for attenuating the motion of a wash tub in a washing machine is disclosed. The pneumatic variable damping device includes a pneumatic cylinder defining a first chamber and a second chamber. The pneumatic cylinder includes a piston slidably mounted to the cylinder. The piston separates the first chamber from the second chamber. The pneumatic variable damping device includes a first valve coupled to the first chamber and a second valve coupled to the second chamber. The first valve and the second valve are configured to restrict the flow of pneumatic fluid from the respective chambers of the pneumatic cylinder. The first valve and the second valve can also be configured to allow the free flow of pneumatic fluid from the respective chambers of the pneumatic cylinder.

Abstract: A drum type washing machine is provided. The washing machine may include a tub, a drum, a motor rotating the drum, bearing housings housing bearings to support a rotation shaft, a suspension connected to the bearing housings and a cabinet to mitigate vibration, a bracket coupled to the bearing housings, and a gasket installed between the bracket and the tub. Such an arrangement may allow volumes of the tub and the drum may be increased without increasing the volume of the cabinet.

Abstract: A bearing housing includes a bearing housing body, and a shaft support part formed at the center of the bearing housing body, wherein the shaft support part includes at least one rib groove to fix a bearing bush located on the inner circumferential surface of a front end of the shaft support part. The manufacturing method of the bearing housing uses a first mold and a second mold to form an external appearance of the bearing housing and a central core to form a shaft support part of the bearing housing, and includes inserting a bearing bush onto the outer circumferential surface of the central core, and fixing the bearing bush inserted onto the outer circumferential surface of the central core by at least one bush fixing rib formed on one of the first mold and the second mold.

Abstract: A washing machine may comprise a cabinet; a first tub fixedly mounted in an inside of the cabinet and configured to accommodate wash water; a second tub configured to accommodate laundry and rotatably mounted inside of the first tub; a drive motor mounted outside of the first tub and configured to rotate the second tub; a driving circuit unit connected with the drive motor so as to apply a driving signal to the drive motor; and/or a water-cooling cooler unit configured to cool the drive motor and the drive circuit unit with the wash water accommodated in the first tub.

Abstract: Provided is a laundry treating apparatus including a drum, a circular guide, and a panel. The drum holds laundry, has a front side and a rear side opened, and has a cross-section of a noncircular looped curve in which a distance from a rotation center is not uniform. The circular guide rotatably supports a portion of the drum in which a section curvature is uniform. The panel is provided on a front side or a rear side of the drum and supports the circular guide such that the circular guide is rotatable.

Abstract: Provided is a laundry treating apparatus including a drum, a circular guide, and a panel. The drum holds laundry, has a front side and a rear side opened, and has a cross-section of a noncircular looped curve in which a distance from a rotation center is not uniform. The circular guide rotatably supports a portion of the drum in which a section curvature is uniform. The panel is provided on a front side or a rear side of the drum and supports the circular guide such that the circular guide is rotatable.

Abstract: Disclosed herein are a washing machine and a control method of the same. The control method includes detecting a position of a coupler coupled to a rotor of a drive motor in a first mode in which power from the drive motor is transmitted to a washing shaft and a spin-drying shaft and coupled to a rotation prevention unit of a water tub in a second mode in which the power from the drive motor is transmitted to the washing shaft, determining based on the position of the coupler whether the coupling of the coupler is abnormal, shaking the coupler at a present position or moving the coupler to a position before mode switching and shaking the coupler such that the coupler is moved to a position where the mode switching is to be performed.

Abstract: A washing machine and a laundry amount detection device thereof. The washing machine includes a cabinet, a tub provided in the cabinet, an elastic member to elastically support the tub at the cabinet, and a laundry amount detection device to detect an amount of laundry placed in the tub using a deformation amount of the elastic member.

Abstract: A washing machine includes a main body defining an outer appearance, a tub disposed within the main body, a main drum rotatably mounted in the tub, a sub drum mounted in the main drum to be relatively rotatable with respect to the main drum, an outer shaft for rotating the main drum, an inner shaft for rotating the sub drum, being disposed inside the outer shaft, and a driving motor having a stator, an outer rotor connected to the inner shaft that is rotatable outside the stator, and an inner rotor connected to the outer shaft that is rotatable inside the stator, wherein the driving motor independently drives the main drum and the sub drum.

Abstract: A tub (100) for a washing machine, and a washing machine comprising the same are disclosed. The tub (100) is formed through injection molding with a bearing housing (200) inserted therein, and the washing machine comprises the same. Here, the bearing housing (200) comprises a flange (210) extending to have a protruded part (216) and a recessed part (215) in a radial direction. The tub (100), and the washing machine comprising the same solve the problems of the conventional washing machine, and fulfill various requirements. The tub (100) has excellent strength and rigidity of the rear wall thereof, exhibits a strong coupling force with respect to the inserted bearing housing (200), and reduces manufacturing costs. Thus, the washing machine has all the characteristics of the tub (100).

Abstract: A front opening horizontal axis washing machine having an outer wash tub and a rotary inner tub basket for receiving items to be laundered. The inner and outer tub have an annular gap about respective frontal portions thereof, and an annular guard is fixed to the outer tub for reducing the size of the gap. The guard has an inner lip portion that extends radially inwardly and rearwardly with respect to the front opening of the basket for defining a relatively small axial gap with a front side of the inner rotating basket for more effectively preventing migration of foreign objects between the inner and outer tubs. The inner lip of the guard has a radial clearance with the frontal portion of the inner tub that is greater than the axial gap, but recessed from sight to a user of the machine.