Washing machine

Abstract

The present invention relates to a washing machine. The washing machine includes a drum unit 10 , wherein a drum 11 in which the washing is contained and that is rotated, an inflow line 12 for introducing water into the drum 11 and an outflow line 13 for discharging water therein are connected to the drum unit 10 ; a water supply unit 20 including a water tank 21 for storing a certain amount of water therein, a first forced pump 22 for forcibly sending the water of the water tank 21 , a heat exchanger 23 for cooling the forcibly sent water, a first valve V 1 for turning on/off the connection to the inflow line 12 , and a second valve V 2 disposed between a line between the heat exchanger 23 and the first valve V 1 and the water tank 21 , wherein the second valve V 2 is turned on/off so that the water sent from the water tank 21 circulates to the water tank 21 ; a water circulation unit 30 including a second forced pump 32 for forcibly sending the water discharged from the outflow line 13 , and a check valve 33 for making the water sent from the second forced pump 32 flow toward the inflow line 12 only; and a drain valve 40 for discharging the water discharged from the outflow line 13.

1 . A washing machine, comprising: 
 a drum unit  10 , wherein a drum  11  for containing the washing which rotates,    an inflow line  12  for introducing water into the drum  11  and an outflow line  13  for discharging water therein are connected to the drum unit  10 ,    a water supply unit  20  for storing water to be supplied to the drum unit  10  therein, wherein the water supply unit is connected to the inflow line  12 ,    a water circulation unit  30  for circulating the water supplied to the drum unit  10  toward the drum unit  10  again, wherein the water circulation unit is connected to the inflow line  12  and the outflow line  13 , and    a drain valve  40  for discharging the water discharged from the outflow line  13 ,    wherein the water supply unit  20  comprises a water tank  21  for storing a certain amount of water therein, a first forced pump  22  for forcibly sending the water of the water tank  21 , a heat exchanger  23  for cooling the forcibly sent water, a first valve V 1  for turning on/off the connection to the inflow line  12 , a second valve V 2  disposed between a line between the heat exchanger  23  and the first valve V 1  and the water tank  21 , wherein the second valve V 2  is turned on/off so that the water sent from the water tank  21  is circulated toward the water tank  21 , and an electrolysis device  24  for electrolyzing the water contained in the water tank  21 , and    the water circulation unit  30  comprises a second forced pump  32  for forcibly sending the water discharged from the outflow line  13 , and a check valve  33  for allowing the water sent from the second forced pump  32  to flow toward the inflow line  12  only.    
   
   
       2 . The washing machine as claimed in  claim 1 , wherein the water supply unit  20  further comprises an electrolysis device  24  disposed in the water tank  21 , for electrolyzing the water.  
   
   
       3 . The washing machine as claimed in  claim 1 , wherein the inflow line  12  is directly connected to a sub inflow line  12 ′ connected to water pipes.  
   
   
       4 . The washing machine as claimed in  claim 1 , wherein the water circulation unit  30  is connected to a detergent supply unit  50  for supplying a detergent.  
   
   
       5 . The washing machine as claimed in  claim 1 , wherein the heat exchanger  23  of the water supply unit  20  is a means for cooling water within the water tank  21  to 4° C. to 8° C. in order to make a cluster of a molecule small and prevent shrinkage or deformation of a texture having a fine fibrous tissue.  
   
   
       6 . The washing machine as claimed in  claim 2 , wherein the electrolysis device  24  is a means for increasing the cleaning capability by making a mixture of water and a detergent uniform and rapidly infiltrated into a fibrous tissue of a texture in the drum  11  and for preventing shrinkage or deformation of the fibrous tissue by keeping constant the amount of water and temperature among fibrous tissues.