Lg Electronics Inc.

Jongseok Jung

Seongmin Jang

Junho Lee

Sangwook Lee

Kiwook Lee

Jonghwan Lee

Kihoon Choi

Woonghui Won

Jihong Woon Lee

Junho Park

Kwanwoong Jeong

Junsung Kim

Jieon Kim

Sungwan Kim

Bokyung Cho

Sungha Ryu

Jungyeol Lee

Changgyu Choi

The present disclosure relates to a drain pump driving apparatus and a laundry treatment machine including the same. A drain pump driving apparatus according to an embodiment of the present disclosure and a laundry treatment machine including the same include: an inverter converting a direct current (DC) voltage from a converter into an alternating current (AC) voltage based on a switching operation and to output the converted AC voltage to a drain motor; and a controller to control the motor to, when a drain channel in a drain pump is clogged, be temporarily stopped in a period during which a speed of the motor increases and then to repeatedly rotate and stop in a first direction the same as a start-up direction, and to repeatedly rotate and stop in a second direction opposite to the first direction when the drain channel is clogged even after the motor repeatedly rotates and stops in the first direction. Accordingly, when impurities are introduced into the drain pump, the impurities can be removed in a simple manner.

Drain pump driving apparatus and laundry treatment machine including the same

The present disclosure relates to a laundry treatment machine. A drain laundry treatment machine according to an embodiment of the present disclosure: an inverter converting a direct current (DC) voltage from a converter into an alternating current (AC) voltage based on a switching operation and outputting the converted AC voltage to a drain motor; an output current detector to detect an output current flowing in the drain motor; and a controller to control the drain motor to rotate at a speed lower than a first speed when the output current flowing in the drain motor decreases in a state where a speed of the drain motor is the first speed. Accordingly, it is possible to reduce a pressure in a vortex chamber of the drain pump during dewatering.

Laundry treatment machine

The present disclosure relates to a laundry treatment machine and a method for controlling the same. An increased amount of wash water during dewatering is introduced into a pump by decreasing the speed of a pump motor provided in the pump and increasing it again based on changes in the speed of the main motor during dewatering, and the wash water introduced while the speed of the pump motor is increasing is drained. Thus, the amount of noise generated during drainage may be reduced, drainage performance may be improved, and drainage time may be shortened.

Laundry treatment machine and method for controlling the same

A laundry treatment apparatus includes a tub that stores wash water; a drum rotatably disposed in the tub; a heater that heats wash water in the tub; a temperature sensor that senses a temperature of wash water; an output unit that displays at least one operation setting of the laundry treatment apparatus; and a controller configured to: determine an initial operation time based on the at least one operation setting; output the initial operation time through the output unit; determine an operation time based on (i) the temperature of wash water sensed by the temperature sensor during a supply of water to the tub and (ii) a level of wash water supplied to the tub; and output the operation time through the output unit.

Laundry treatment apparatus and control method thereof

The present invention relates to a laundry processing apparatus and a control method therefor, and to a laundry processing apparatus having a plurality of washing parts for performing washing independently of each other, the apparatus: determining whether the plurality of washing parts simultaneously perform washing; and determining whether a simultaneous operation is performed on the basis of the time required when water is supplied, so as to determine an error for the simultaneous operation on the basis of a standard different from an error determination standard during a single operation, thereby reducing the errors frequently occurring because of the simultaneous operation in a normal state.

Laundry processing apparatus and control method therefor

A method of controlling a laundry treatment apparatus includes: determining whether bubbles have been generated in a tub of the laundry treatment apparatus in a state in which a second washing apparatus of the laundry treatment apparatus is operated based on a sequence of operations; and based on a determination that bubbles have been generated, reducing bubbles by (i) adding at least one first operation to the sequence of operations or (ii) replacing at least one second operation of the sequence of operations.

Laundry treatment apparatus and method of controlling the same

A laundry treatment apparatus that includes: a cabinet; a first cabinet door; a second cabinet door; a first washing apparatus; and a second washing apparatus including: a tub that is accessible through a second opening in a state in which the second cabinet door is opened, that is configured to store water, and that includes a tub opening at a top of the tub, a tub cover that is coupled to the tub and that covers the tub opening, and a drum that is configured to rotate about a shaft, the shaft extending in the second direction, wherein the tub cover includes an air channel unit that is configured to transfer air between an interior area of the tub and an exterior area of the tub in a state in which the second washing apparatus is operational is disclosed.

A method of controlling a laundry treatment apparatus, the method including: determining whether bubbles have been generated in a tub of the laundry treatment apparatus in a state in which a second washing apparatus of the laundry treatment apparatus is operated based on a sequence of operations; and based on a determination that bubbles have been generated, reducing bubbles by (i) adding at least one first operation to the sequence of operations or (ii) replacing at least one second operation of the sequence of operations, is disclosed.

Growing community of inventors

Seoul, South Korea

Jongseok Jung