Drum washing machine

A drum washing machine to perform a drying function, comprising:

• a cabinet;
• a tub arranged within the cabinet;
• a drum rotatably arranged within the tub;
• a drying duct coupled to one side of the tub, the drying duct being equipped with a heater to heat air therein such that, during performance of the drying function, air absorbing moisture in laundry within the drum circulates between the tub and the drying duct so as to remove the moisture;
• and
• an introduction passage located between the tub and the drying duct such that air outside the tub having relatively low humidity compared with air inside the tub is introduced into the introduction passage and condensation efficiency of air inside the tub is capable of being enhanced.

A drum washing machine to perform a drying function, comprising:

• a cabinet;
• a tub arranged within the cabinet;
• a drum rotatably arranged within the tub;
• a drying duct to heat and circulate air in the tub;
• and
• a discharge member coupled to one side of the tub to discharge at least one of wash water and air to the outside of the cabinet,
• wherein a circulation passage which forms a circulation flow of air such that air moves between the tub and the drying duct is formed, a discharge passage configured such that air in the tub is discharged to the outside of the cabinet is formed, and the discharge passage is provided in the discharge member.

A drum washing machine comprising:

• a cabinet;
• a tub arranged within the cabinet;
• a drum rotatably arranged within the tub;
• a drying duct to heat and circulate condensed air within the tub;
• a suction member which is coupled, at one side thereof, to a lower side of the drying duct and is coupled, at other side thereof, to one side of the tub so as to communicate with the tub, a blowing fan being seated to the suction member, the suction member being configured such that air inside and outside the tub is sucked into the suction member;
• and
• a discharge member coupled to the other side of the tub, the discharge member comprising an introduction port through which air in the tub is introduced and a discharge port through which the introduced air is discharged.

A washing machine, comprising:

• a cabinet;
• a tub in the cabinet;
• a drum rotatably arranged in the tub;
• a drying duct including a heater;
• and
• an introduction passage located between the tub and the drying duct configured to introduce air outside the tub having lower humidity than air inside the tub.