Dishwasher

Abstract

A dishwasher comprises: a tub that forms a washing chamber; a spray unit that sprays water into the washing chamber; a sump housing that includes a first coupling portion; a pump, coupleable to the sump housing, and includes a second coupling portion; and a pump holder that connects the first coupling portion of the sump housing and the second coupling portion of the pump to thereby allow the pump to be mounted on the sump housing. In order to prevent the pump from separating from the sump housing, at least one of the first coupling portion or the second coupling portion may include a first extension portion extending along a first direction and a second extension portion extending from the first extension portion along a second direction intersecting with the first direction.

1 . A dishwasher comprising:
 a tub forming a washing chamber;   a spray unit configured to spray water into the washing chamber;   a sump housing comprising a water reservoir chamber to reserve water flowing from the washing chamber, a pump flange through which water from the water reservoir chamber passes, and a first coupler protruding outward from the water reservoir chamber;   a pump configured to pump water of the water reservoir chamber to the spray unit and to be couplable to the pump flange of the sump housing, the pump comprising a second coupler arrangeable to correspond to the first coupler while the pump is coupled to the pump flange; and   a pump holder to connect the first coupler of the sump housing with the second coupler of the pump to thereby allow the pump to be mounted on the sump housing,   wherein at least one of the first coupler or the second coupler comprises a first extension extending along a first direction and a second extension extending along a second direction intersecting with the first direction to prevent the pump from being separated from the sump housing.   
     
     
         2 . The dishwasher according to  claim 1 , wherein the pump holder is caught by the second extension along the first direction. 
     
     
         3 . The dishwasher according to  claim 1 , wherein the sump housing comprises a rib extending toward one side of the pump while the pump is coupled to the pump flange,
 wherein the pump further comprises a protrusion protruding to be spaced apart from the rib toward the pump flange along the first direction while the pump is coupled to the pump flange.   
     
     
         4 . The dishwasher according to  claim 3 , wherein
 the rib is a first rib,   the protrusion is a first protrusion,   the sump housing further comprises a second rib extending toward another side of the pump to face the first rib while the pump is coupled to the pump flange, and   the pump further comprises a second protrusion protruding to be spaced apart from the second rib toward the pump flange along the first direction while the pump is coupled to the pump flange.   
     
     
         5 . The dishwasher according to  claim 1 , wherein the pump holder comprises
 a pump holder body extending along a vertical direction,   a first end formed at an upper region of the pump holder and couplable to the first coupler, and   a second end formed at a lower region of the pump holder and couplable to the second coupler.   
     
     
         6 . The dishwasher according to  claim 1 , further comprising a connector configured to guide water pumped by the pump to the spray unit,
 wherein the pump further comprises an inlet connected to the pump flange to receive water from the water reservoir chamber, and an outlet connected to the connector to supply the water to the spray unit received through the inlet, and   the pump is fixed to the sump housing by the inlet, the outlet, and the second coupler.   
     
     
         7 . The dishwasher according to  claim 1 , wherein the pump holder comprises a rubber material. 
     
     
         8 . The dishwasher according to  claim 1 , further comprising a base frame disposed below the tub and provided to accommodate the sump housing, the pump, and the pump holder,
 wherein the pump is located to be spaced apart from a bottom of the base frame.   
     
     
         9 . The dishwasher according to  claim 1 , further comprising a sealing member located on an inner side surface of the pump flange to prevent leakage of water between the sump housing and the pump. 
     
     
         10 . The dishwasher according to  claim 3 , wherein the pump further comprises a pump connector provided to transmit and receive an electrical signal,
 wherein the rib is provided to cover the pump connector to prevent water from entering the pump connector.   
     
     
         11 . The dishwasher according to  claim 1 , further comprising a projection projecting toward the pump holder from one end of the second extension. 
     
     
         12 . The dishwasher according to  claim 5 , wherein the second end of the pump holder further comprises an insertion hole into which the second coupler of the pump is insertable,
 wherein the second coupler further comprises a holding protrusion with a width greater than a width of the insertion hole to be caught by the second end in a state of being inserted into the insertion hole.   
     
     
         13 . The dishwasher according to  claim 1 , wherein the pump comprises a pump motor,
 an impeller configured to rotate in a state of being connected to the pump motor, and   a case provided to accommodate the pump motor and the impeller and including the second coupler.   
     
     
         14 . The dishwasher according to  claim 1 , wherein the pump is detachably couplable to the pump flange of the sump housing along the first direction. 
     
     
         15 . The dishwasher according to  claim 5 , wherein the pump holder further comprises a cut opening formed between the first end and the second end.