Detergent case and washing machine having the same

A detergent case comprising:

• at least one liquid detergent accommodation space;
• a first discharge hole formed in one of the at least one liquid detergent accommodation space to generate siphonage so as to discharge a liquid accommodated therewithin if the liquid reaches a designated height;
• and
• a second discharge hole passing through a bottom surface of the liquid detergent accommodation space provided with the first discharge hole so as to discharge a remainder of the liquid not discharged through the first discharge hole, and the second discharge hole is separated from the first discharge hole,
• an opening and closing unit moving upwardly and downwardly due to buoyancy of the liquid accommodated within the liquid detergent accommodation space to open and close the second discharge hole,
• wherein the opening and closing unit includes:
• a buoyancy member and a sealing member located beneath the buoyancy member, and the sealing member is connected to a lower end of the buoyancy member, and
• wherein the buoyancy member is floated due to the buoyancy of the liquid accommodated within the liquid detergent accommodation space and the sealing member seals the remaining water discharge hole.

A washing machine having a detergent supply device installed at one side of a main body, the detergent supply device comprising a detergent case having a liquid detergent accommodation space, wherein the detergent case includes:

• a siphon pipe to generate siphonage so as to discharge a liquid if the liquid reaches a designated height;
• a remaining water discharge hole to discharge a remainder of the liquid not discharged by the siphon pipe;
• and
• an opening and closing unit moving upwardly and downwardly due to buoyancy of the liquid accommodated within the liquid detergent accommodation space to open and close the remaining water discharge hole,
• wherein the opening and closing unit includes:
• a buoyancy member and a sealing member located beneath the buoyancy member, and the sealing member is connected to a lower end of the buoyancy member, and
• wherein the buoyancy member is floated due to the buoyancy of the liquid accommodated within the liquid detergent accommodation space and the sealing member seals the remaining water discharge hole.