Dish washing machine

Abstract

Disclosed herein is a dish washing machine including a sump unit capable of reducing the number of elements thereof, and minimizing the number of coupling portions of the elements. The dish washing machine includes a washing tub, a sump unit arranged in the washing tub, and at least one injection nozzle to inject wash water into the washing tub. The sump unit includes a sump housing, an impeller to pump wash water from the sump housing, a guide member, to which the sump housing is mounted, the guide member guiding the wash water pumped by the impeller directly to the at least one injection nozzle, and a housing cover to cover the sump housing and the guide member. The housing cover is formed with a garbage chamber to collect garbage contained in the wash water.

1 . A dish washing machine comprising a washing tub, a sump unit arranged in the washing tub, and at least one injection nozzle to inject wash water into the washing tub, wherein the sump unit comprises:
 a sump housing;   an impeller to pump wash water from the sump housing;   a guide member, to which the sump housing is mounted, the guide member guiding the wash water pumped by the impeller directly to the at least one injection nozzle; and   a housing cover to cover the sump housing and the guide member, the housing cover being formed with a garbage chamber to collect garbage contained in the wash water.   
     
     
         2 . The dish washing machine according to  claim 1 , wherein:
 the at least one injection nozzle is rotatably coupled to a central portion of the housing cover; and   the impeller is arranged at a position laterally spaced apart from the central portion of the housing cover.   
     
     
         3 . The dish washing machine according to  claim 1 , wherein the guide member comprises a mounting portion, to which the impeller is mounted, and a channel extending spirally from a center of the mounting portion. 
     
     
         4 . The dish washing machine according to  claim 3 , wherein the at least one injection nozzle comprises a plurality of injection nozzles, and the plurality of injection nozzles comprise a first injection nozzle directly connected to the sump unit, and a second injection nozzle connected to the sump unit via an extension channel. 
     
     
         5 . The dish washing machine according to  claim 4 , wherein the channel is branched into a first channel to guide a flow of water to the first injection nozzle, and a second channel to guide a flow of water to the extension channel. 
     
     
         6 . The dish washing machine according to  claim 5 , wherein the sump unit further comprises a valve arranged in the second channel, to open or close the second channel. 
     
     
         7 . The dish washing machine according to  claim 3 , wherein the housing cover comprises a sampling hole to allow wash water to flow from the channel to the garbage chamber. 
     
     
         8 . The dish washing machine according to  claim 7 , wherein the housing cover further comprises a guide member to guide, to the garbage chamber, wash water introduced into the top of the housing cover via the sampling hole. 
     
     
         9 . The dish washing machine according to  claim 1 , wherein:
 the sump housing comprises a plurality of coupling ribs; and   a part of the coupling ribs are coupled with the guide member, and the remaining part of the coupling ribs are coupled with the housing cover.   
     
     
         10 . A dish washing machine comprising a washing tub, a sump unit arranged in the washing tub, and an injection nozzle rotatably coupled to the sump unit, wherein:
 the sump unit comprises a sump housing, an impeller to pump wash water from the sump housing, a guide member, to which the sump housing is mounted, a housing cover to cover the sump housing and the guide member, and a garbage chamber to collect garbage contained in the wash water introduced along the guide member; and   the housing cover and the garbage chamber are integrally formed.   
     
     
         11 . The dish washing machine according to  claim 10 , wherein:
 the sump housing comprises a plurality of coupling ribs; and   a part of the coupling ribs are coupled with the guide member, and the remaining part of the coupling ribs are coupled with the housing cover.   
     
     
         12 . The dish washing machine according to  claim 10 , wherein the guide member comprises a channel to directly guide the wash water to the injection nozzle. 
     
     
         13 . The dish washing machine according to  claim 10 , wherein the impeller has a rotating axis arranged at a position spaced apart from a rotating center of the injection nozzle. 
     
     
         14 . The dish washing machine according to  claim 10 , wherein the housing cover comprises a sampling hole to allow wash water to flow from the guide member to the garbage chamber. 
     
     
         15 . The dish washing machine according to  claim 14 , wherein the housing cover further comprises a guide member to guide wash water introduced into a top of the housing cover via the sampling hole. 
     
     
         16 . A dish washing machine comprising:
 a washing tub;   a sump housing arranged at a bottom of the washing tub;   an impeller to pump wash water from the sump housing;   a guide member comprising a mounting portion, to which the impeller is mounted, and a channel extending outwardly in a radial direction of the mounting portion; and   a housing cover to cover the guide member and the sump housing, the housing cover being formed with a garbage chamber to collect garbage contained in the wash water.   
     
     
         17 . The dish washing machine according to  claim 16 , further comprising:
 an injection nozzle rotatably mounted to the housing cover, to supply wash water to the washing tub.   
     
     
         18 . The dish washing machine according to  claim 16 , wherein the channel guides a flow of water discharged from the impeller directly to a rotating center of the injection nozzle. 
     
     
         19 . The dish washing machine according to  claim 16 , wherein:
 the sump housing comprises a plurality of coupling ribs; and   a part of the coupling ribs are coupled with the guide member, and the remaining part of the coupling ribs are coupled with the housing cover.