Lg Electronics Inc.

Byungjae Choi

Gyeoungjin Jeon

Taehee Lee

Joonho Pyo

Seyoung Woo

Junyoung Song

Jeongyeon Park

Taesang Park

A clothing treatment apparatus includes: a tub; a rotating tub; a pulsator; a washing shaft connected to the pulsator; a dehydrating shaft connected to the rotating tub; a clutch mechanism transmitting rotating force to the washing shaft and the dehydrating shaft; and a clutch driver operating the clutch mechanism. The clutch driver includes: a clutch motor; a cam interlocking the clutch mechanism; and a clutch motor driver having a control circuit driving the clutch motor. The clutch motor driver includes: a motor driving circuit driving the clutch motor while adjusting a driving direction and a driving speed of the clutch motor; a shunt resistor generating a phase current due to a voltage difference generated by the motor driving circuit; and a motor sensing controller that detects currents of the shunt resistor and determines whether the clutch mechanism and the clutch motor normally operate according to the detected current values.

Clothing treatment apparatus and method for controlling clothing treatment apparatus

A laundry treatment apparatus includes: a tub, a drum provided in the tub, an agitator provided in the drum, a driver coupled to the tub and providing power for rotating at least one of the drum or the agitator, and a clutch unit provided between the driver and the agitator and transmitting the power to at least one of the drum or the agitator. The clutch unit includes: a gear unit rotating based on being engaged with the driver, a rotary shaft coupled to the gear unit and rotating the agitator, a housing coupled to the drum and accommodating the gear unit and the rotary shaft, a coupler reciprocating between the housing and the driver and rotating the housing, a moving unit including the coupler therein to reciprocate the coupler, and an actuator reciprocating the moving unit, where at least a portion of the actuator is disposed in the driver.

Laundry treatment apparatus

A laundry treating apparatus incudes a coupler that connects a housing (a gearbox) capable of rotating a driver and a drum in a clutch inside the housing.

Laundry treating apparatus

A drive assembly may transmit a driving force in a washing machine and comprise a stator and a rotor, a washing shaft connected to the rotor and to a pulsator of the washing machine, a spin-drying shaft surrounding the washing shaft and connected to an inner tub of the washing machine, a coupler provided to be vertically movable in an inner side of the spin-drying shaft to selectively connect the spin-drying shaft to and from the rotor, and a clutch providing power to move the coupler. A first bearing may support an upper outer circumferential surface of the washing shaft and a second bearing may support a lower outer circumferential surface of the washing shaft. The coupler may be provided between the first bearing and the second bearing in an axial direction.

Growing community of inventors

Seoul, South Korea

Byungjae Choi