Clothing treatment apparatus provided with steam generation device, and method for controlling clothing treatment apparatus

A clothing treatment apparatus comprising a cabinet, an accommodation part disposed inside the cabinet and configured to accommodate an object, and a steam generation device disposed outside the object accommodation part and configured to generate steam to be supplied to the object accommodation part, wherein the steam generation device comprises:

• a housing configured to receive steam water and to form a heating space;
• a cover configured to cover the heating space;
• a water level sensing unit configured to sense a first water level and a second water level of steam water supplied to the heating space, the second water level being higher than the first water level;
• a first heater configured to heat steam water below the first water level;
• and
• a second heater configured to heat steam generated over the first water level through heating by the first heater, thereby generating overheated steam, or to heat the steam water supplied up to the second water level, thereby generating steam.

A clothing treatment apparatus comprising a cabinet, an accommodation part disposed inside the cabinet and configured to accommodate an object, and a steam generation device disposed outside the object accommodation part and configured to generate steam to be supplied to the object accommodation part, wherein:

• the steam generation device comprises:
• a box-shaped housing configured to receive steam water supplied thereto;
• a cover configured to cover the heating space;
• a first heater disposed under the housing;
• a lower barrier wall disposed over the first heater;
• a second heater disposed over the lower barrier wall;
• and
• an upper barrier wall disposed over the second heater;
• and
• steam generated through heating by the first heater is moved to a space between the lower barrier wall and the upper barrier wall and is then changed into overheated steam by the second heater.

A clothing treatment apparatus comprising a cabinet, an accommodation part disposed inside the cabinet and configured to accommodate an object, and a steam generation device disposed outside the object accommodation part and configured to generate steam to be supplied to the object accommodation part, wherein:

• the steam generation device comprises:
• a housing configured to receive steam water and to form a heating space;
• a cover configured to cover the heating space;
• a water level sensing unit configured to sense a first water level and a second water level of steam water supplied to the heating space, the second water level being higher than the first water level;
• a first heater disposed below the first water level;
• a second heater disposed between the first water level and the second water level;
• a lower barrier wall disposed between the first water level and the second heater;
• and
• an upper barrier wall disposed above the second water level and configured to form a steam flow path together with the lower barrier wall;
• and
• the second heater heats steam generated through heating by the first heater when the steam water is disposed at the first water level, and heats the steam water together with the first heater when the steam water is disposed at the second water level, thereby generating steam.

A control method of a clothing treatment apparatus comprising a steam generation device comprising a water level sensing unit configured to sense a first water level and a second water level of steam water supplied to a heating space, the second water level being higher than the first water level, a first heater disposed below the first water level, and a second heater disposed between the first water level and the second water level, the control method comprising:

• water supply of supplying steam water to the steam generation device;
• first water level sensing of sensing the first water level of the supplied steam water;
• preheating of preheating the steam water of the first water level by the first heater;
• second water level sensing of sensing the second water level higher than the first water level;
• and
• heating of heating the steam water of the second water level by the second heater in accordance with the sensing of the second water level, thereby generating steam.

A control method of a clothing treatment apparatus comprising a steam generation device comprising a water level sensing unit configured to sense a first water level and a second water level of steam water supplied to a heating space, the second water level being higher than the first water level, a first heater disposed below the first water level, and a second heater disposed between the first water level and the second water level, the control method comprising:

• water supply of supplying steam water to the steam generation device;
• first water level sensing of sensing the first water level of the supplied steam water;
• heating of heating the steam water of the first water level by the first heater, thereby generating steam;
• and
• overheated steam generation of heating the steam generated at the first water level by the second heater, thereby generating overheated steam.