Abstract: An ice-making water purifier includes a water tank unit, an instantaneous heating device, an extraction member, an ice-maker, a supply pump, an ice-making water inlet passage, an ice-making water supply valve, a flow rate sensor, and a controller configured to control driving of the supply pump and the opening and closing of the ice-making water supply valve such that purified water corresponding to a predetermined supply amount of ice-making water is supplied to the ice-maker on the basis of a flow rate value measured by the flow rate sensor. The controller controls the opening and closing of the channel such that purified water is preferentially supplied to the instantaneous heating device among the instantaneous heating device and the ice-maker.

Abstract: Provided is a water purifier comprising: a filter unit which has a reverse osmosis membrane filter; a supply valve; an instantaneous heating device which is provided with an inflow port, and an outflow port, and which heats and purified water entering through the inflow port and flowing to the outflow port, so that hot water is discharged through the outflow port; an extraction member; a supply pump; a domestic water drain line; a hot water drain line; a hot water drain valve; and a control unit which controls the opening/closing of respective flow channels of the hot water drain line and the domestic water drain line so that, among a hot water draining process through the hot water drain line, and a domestic water draining process through the domestic water drain line, the hot water draining process is carried out first.

Abstract: A water treatment apparatus capable of sterilizing a storage tank and a sterilizing and cleansing method thereof are disclosed. The water treatment apparatus includes: a filter unit purifying raw water; a storage tank connected to the filter unit and storing purified water which has been filtered through the filter unit; an electrolytic sterilizer installed between the filter unit and the storage tank, electrolyzing only purified water which has been filtered through at least a portion of the filter unit to generate sterilization water, and supplying the sterilization water to the storage tank; a drain unit connected to the storage tank and discharging water accommodated in the storage tank; and a control unit controlling a water purification mode of the filter unit and a sterilization mode through the electrolytic sterilizer and the drain unit.

Abstract: A gear reducer and a juicer including the gear reducer are disclosed. The gear reducer transfers rotational force, provided by a drive unit, to a juice extraction screw assembly after gear reduction. The gear reducer includes one or more gear reduction units. At least one of the one or more gear reduction units includes a sun gear coaxially connected to a rotating shaft of the drive unit; a ring gear configured such that a plurality of gear teeth are formed on the inner circumferential surface thereof around the sun gear, and configured to output a rotation speed slower than the rotation speed of the sun gear; and a plurality of planetary gears disposed between the sun gear and the ring gear, and configured to transfer the rotational force of the sun gear to the ring gear.

Abstract: A gear reducer and a juicer including the gear reducer are disclosed. The gear reducer transfers rotational force, provided by a drive unit, to a juice extraction screw assembly after gear reduction. The gear reducer includes one or more gear reduction units. At least one of the one or more gear reduction units includes a sun gear coaxially connected to a rotating shaft of the drive unit; a ring gear configured such that a plurality of gear teeth are formed on the inner circumferential surface thereof around the sun gear, and configured to output a rotation speed slower than the rotation speed of the sun gear; and a plurality of planetary gears disposed between the sun gear and the ring gear, and configured to transfer the rotational force of the sun gear to the ring gear.

Abstract: A water treatment apparatus capable of sterilizing a storage tank and a sterilizing and cleansing method thereof are disclosed. The water treatment apparatus includes: a filter unit purifying raw water; a storage tank connected to the filter unit and storing purified water which has been filtered through the filter unit; an electrolytic sterilizer installed between the filter unit and the storage tank, electrolyzing only purified water which has been filtered through at least a portion of the filter unit to generate sterilization water, and supplying the sterilization water to the storage tank; a drain unit connected to the storage tank and discharging water accommodated in the storage tank; and a control unit controlling a water purification mode of the filter unit and a sterilization mode through the electrolytic sterilizer and the drain unit.