Steam generator , and laundry device and method thereof

A laundry machine comprising:

• a tub;
• a drum rotatably mounted in the tub to hold laundry therein;
• and
• a steam generator to generate steam for supplying to the drum, the steam generator comprising:
• a steam generation unit having a water inlet port formed at one side thereof, an outlet port formed at the other side thereof, and a flow channel connected between the water inlet port and the outlet port, wherein the outlet port is at a higher place than the inlet port on the basis of a horizontal line, thereby water excluding steam is prevented from being discharged through the outlet port;
• and
• a heater for heating water being supplied through the water inlet port and flowing through the flow channel to generate steam;
• a water supply pipe for supplying water to the flow channel through the inlet port;
• a discharge pipe for discharging the steam generated in the flow channel through the outlet port to the drum;
• a detergent box for supplying detergent to the tub;
• a connection pipe connected between the detergent box and a water supply valve for supplying water to the detergent box;
• and
• an overflow pipe connected to the water supply pipe for discharging water overflowing from the flow channel when the water flowing through the flow channel overflows.

A laundry machine comprising:

• a machine case which forms an external appearance of the laundry machine;
• a tub mounted in the machine case;
• a drum rotatably mounted in the tub to hold laundry therein;
• a steam generator to generate steam for supplying to the drum, the steam generator comprising:
• a steam generation unit having a water inlet port, an outlet port, and a flow channel connected between the water inlet port and the outlet port;
• and
• a heater for heating water being supplied through the water inlet port and flowing through the flow channel to generate steam;
• a water supply pipe for supplying water to the flow channel through the inlet port;
• a discharge pipe for discharging the steam generated in the flow channel through the outlet port to the drum without a device for blocking the steam flow to generate the steam;
• a detergent box for supply detergent to the tub;
• a connection pipe connected between the detergent box and a water supply valve for supply water to the detergent box;
• and
• a supporting bracket to fix the steam generator to the machine case.