A circuit that increases input voltage to higher output voltage connected to a variable frequency drive in an appliance. Several switching arrangements, timing, and safety mechanisms are in place to assist. When the circuit experiences high draw, high voltage output values of circuit decrease over time, but different aspects of the circuit can be constructed so that the amount of time required at a higher voltage does not exceed the amount of time in which the high voltage output is provided.

Provided is a balance assembly applied in a household appliance. The balance assembly includes: a balancing body having a chamber defined therein; a balancer movably located in the chamber; a first wireless charging assembly; and an energy storage device located outside the balancer and connected to the first wireless charging assembly. The first wireless charging assembly is configured to receive a charging energy wirelessly transmitted by the household appliance. The energy storage device, the first wireless charging assembly, and the balancing body are mounted within a cavity of the household appliance. The chamber has a first conductive structure provided on an inner wall thereof, and the first conductive structure is electrically connected to the energy storage device. The balancer includes a second conductive structure movably connected to the first conductive structure.

A laundry treating machine includes a case, a tub, a drum, a drain pump housing, and a drain pump motor, wherein a plurality of fastening protrusions that are formed at one of the drain pump housing and the drain pump motor are inserted into a plurality of fastening grooves that are formed at the other of the drain pump housing and the drain pump motor, and wherein a length of one fastening protrusion is formed to be different from lengths of the other fastening protrusion such that the drain pump housing and the drain pump motor is prevented from being assembled wrongly.

A laundry treating machine includes a case, a tub, a drum, a drain pump housing, and a drain pump motor, wherein a plurality of fastening protrusions that are formed at one of the drain pump housing and the drain pump motor are inserted into a plurality of fastening grooves that are formed at the other of the drain pump housing and the drain pump motor, and wherein a length of one fastening protrusion is formed to be different from lengths of the other fastening protrusion such that the drain pump housing and the drain pump motor is prevented from being assembled wrongly.

A dryer includes a rotating drum; a lifter positionable on an inner surface of the rotating drum; an energy harvester positionable inside the lifter so that while the energy harvester is positioned inside the lifter, the energy harvester generates electric power as the rotating drum rotates while the lifter is positioned on the inner surface of the rotating drum; a humidity sensor positionable inside the lifter so that while the humidity sensor is positioned inside the lifter, the humidity sensor receives the electric power generated by the energy harvester and senses humidity; a circuit board positionable inside the lifter and on which the humidity sensor is disposed; and an air passage formed through the lifter so as to allow air inside the rotating drum to pass through the lifter. The humidity sensor senses the humidity according to air passing through the air passage of the lifter.

A dryer includes a rotating drum; a lifter positionable on an inner surface of the rotating drum; an energy harvester positionable inside the lifter so that while the energy harvester is positioned inside the lifter, the energy harvester generates electric power as the rotating drum rotates while the lifter is positioned on the inner surface of the rotating drum; a humidity sensor positionable inside the lifter so that while the humidity sensor is positioned inside the lifter, the humidity sensor receives the electric power generated by the energy harvester and senses humidity; a circuit board positionable inside the lifter and on which the humidity sensor is disposed; and an air passage formed through the lifter so as to allow air inside the rotating drum to pass through the lifter. The humidity sensor senses the humidity according to air passing through the air passage of the lifter.

A dryer including a drum; a heat pump including a compressor, evaporator, condenser, and electronic expansion valve; a user interface; a power module to control power supply to the compressor motor and the drum motor; a duct to receive air from the drum so that the received air flows in the duct to be heated by operation of an evaporator and condenser, and to discharge the heated air to the drum; a plurality of temperature sensors to detect temperature of the heat pump, the power module, and the duct; and a controller configured to identify a factor to be controlled from among a plurality of factors that may cause incomplete drying, based on at least one of output data from the plurality of temperature sensors and opening degree data of the electronic expansion valve, and control the user interface to output a notification of the identified factor to be controlled.

A laundry appliance may include a cabinet, a drum, a door, a transmitter power coil, a receiver power coil, and an electronic component. The drum may be mounted within the cabinet. The drum may define a space for the receipt of articles therein. The door may be movably mounted to the cabinet to selectively restrict access to the drum. The transmitter power coil may be mounted to the cabinet proximal to the door. The receiver power coil may be mounted to the door in selective electromagnetic communication with the transmitter power coil to receive an electromagnetic field therefrom. The electronic component may be in electrical communication with the receiver power coil to receive power therefrom.

A clothing treatment apparatus includes a plurality of inverters for controlling the motors of a drum, a compressor, and a blowing fan, a converter for converting input power input from an external source and outputting the converted power to the inverters, and a control unit for controlling the plurality of inverters and the converter.

A clothing treatment apparatus includes a plurality of inverters for controlling the motors of a drum, a compressor, and a blowing fan, a converter for converting input power input from an external source and outputting the converted power to the inverters, and a control unit for controlling the plurality of inverters and the converter.