Washing machine

Abstract

In accordance with an embodiment of the present invention, a washing machine may be provided to be able to automatically add a liquid detergent into a tub. The washing machine in accordance with an embodiment of the present invention includes a detergent box for containing a detergent or rinse; a detergent supply pump for pumping the detergent or rinse contained in the detergent box; a connection pipe connected to the detergent supply pump and a tub; and an open/close unit for opening or closing the connection pipe, wherein the open/close unit is configured to open the connection pipe only when the detergent or rinse is pumped by the detergent supply pump.

What is claimed is: 
     
         1 . A washing machine comprising:
 a detergent box for containing a detergent or rinse;   a detergent supply pump for pumping the detergent or rinse contained in the detergent box;   a connection pipe connected to the detergent supply pump and a tub; and   an open/close unit for opening or closing the connection pipe,   wherein the open/close unit is configured to open the connection pipe when the detergent supply pump is operated to pump the detergent or rinse, and block the connection pipe in order not to supply the detergent or rinse to the connection pipe when the detergent supply pump is not operating.