Lg Electronics Inc.

Seung Bong Choi

Young Soo Kim

Kwang Soo Kim

Jae Kyum Kim

Deug Hee Lee

Byung Hwan Ahn

Dae Yeong Han

Hung Myong Cho

Sangheon Yoon

Sang Heon Yoon

Nung Seo Park

Ki Chul Cho

Jong A Park

Hyeokdeok Kim

Nungseo Park

Ho Chul Kwon

Myong Deok Wolsn Maul 16-Cha Kim

A method for fabricating a stator core and a back yoke of an outer rotor type BLDC motor in a direct coupling type washing machine, including the steps of providing a base metal of a circular electric sheet having a predetermined diameter, and punching the base metal to form a back yoke at a periphery of the base metal and divisional cores on an inside of the back yoke of the base metal at the same time, whereby forming the stator core and the back yoke at the same time reduces working hours and saves material.

Method for fabricating stator core and back yoke of outer rotor type motor in washing machine

The present invention relates to a dishwasher. In more detail, the present invention provides a dishwasher including a sump housing for holding washing water, a washing water pumping unit for pumping the washing water, a drain chamber for receiving the washing water pumped thus, a soil chamber for receiving the washing water through the drain chamber, a guide assembly for guiding the washing water pumped thus to be provided to the soil chamber via the drain chamber, and a sump cover covered on an upper surface of the sump housing for filtering the washing water overflowed from the soil chamber, thereby filtering the washing water effectively, and improving recovery ratio of the washing water to reduce consumption of the washing water and power.

Dishwasher

Washing machine having means for detecting floating laundry, such as a pillow, over a preset height, and method for controlling the same, which enables performance of washing without spray of water or causing damage to the laundry even if the laundry floats, the washing machine including an outer case, a water storage tub inside of the outer case, a washing tub rotatably mounted inside of the water storage tub, a driving motor for rotating the washing tub, and floating laundry detecting means for detecting a case when a height of laundry held in the washing tub is higher than a preset position.

Washing machine having floating laundry detecting means and method for controlling the same

Dishwasher including a sump for holding washing water, a flow passage control valve mounted to the sump for controlling a flow direction of the washing water such that the washing water makes alternate washing, and a valve control device for controlling the flow passage control valve to be moved within a predetermined range of angle, thereby permitting an easy mounting of the flow passage control device which controls a flow direction of the washing water, and reduces waste of the washing water by alternately washing an upper part and a lower part.

Direct coupling type motor for drum type washing machine having a stator which can reduce material required for fabrication, and a weight after fabrication, simplify a fabrication process, and can be mounted on a fixing side, such as a tub or a bearing housing securely, and a rotor which can enhance rigidity an outer rotor and protect a surface of the outer rotor.

Outer rotor type motor for drum type washing machine and method for fabricating the same

A drum opening is configured to be correctly aligned with a tub opening without physical contact with a drum or motor by using a position detection sensor. The drum type washer includes a tub and brackets on the tub to support bearings. A motor includes a rotor, which includes a rotor frame made of a steel plate, a multitude of magnets attached to an inner circumference of the rotor frame, and a position decision magnet coupled to one side of the rotor frame. The stator includes a sensing unit. The sensing unit has a speed detection sensor to detect a plurality of magnets and a position detection sensor to detect the position decision magnet. A washing shaft is coupled to a front, center portion of the drum to be connected to the motor. An assist shaft is coupled to a rear, center portion of the drum.

Drum type washer

A motor for a washing machine including a driving shaft coupled to a drum, a stator for forming a magnetic field with a coil wound on a core, and a rotor rotatably mounted on an outside of the stator coupled to the driving shaft for driving the driving shaft, wherein the rotor includes a rotor frame having magnets attached to an inside surface of an outer end, a back yoke on an outside surface of the outer end for reinforcing the rotor frame and forming a magnetic path, a shaft supporting housing at a center of the rotor frame having one end portion of the driving shaft secured thereto, a bushing of a non-conductive resin having the shaft supporting housing formed as one body at a center, the bushing being secured to the rotor frame, and fastening members for fastening the bushing to the rotor frame.

Motor for washing machine

The present invention provides a stator of an outer rotor motor for a washing machine. The stator includes a ring type helical core, an upper insulator having a shape corresponding to a shape of the helical core to enclose an upper part of the helical core, a lower insulator having a shape corresponding to the shape of the helical core to enclose a lower part of the helical core, at least one locking part built in one body of the upper and lower insulators and projected from an inside of the helical core toward a center of the stator to fix the stator to a fixing side of a tub, a locking hole provided to the locking part to fix the stator to the fixing side of the tub via a locking member, and a rigidity reinforcement bracket provided between the upper and lower insulators.

Stator of outer rotor type motor for drum type washer

Door lock switch assembly in a drum type washing machine including a switch case, a switch cover fitted to the switch case, a latch holder rotatably, and elastically mounted in one side portion of the switch case for exerting a restoring force in a door open direction, a slide fitted to one side of the latch holder, for moving up or down in a direction the same with a hinge shaft of the latch holder to arrest or release the latch holder, a solenoid assembly mounted in a central portion of the switch case, for moving up or down the slide, and a switching part located below the slide, for making a switching operation as a terminal thereof makes a seesaw action following the moving up or down of the slide, thereby simplifying a structure of the door lock switch assembly, and improving an operation reliability of door locking and unlocking.

Growing community of inventors

Changwon-si, South Korea

Seung Bong Choi