A heat pump dishwasher

Abstract

The present invention relates to a dishwasher comprising a body; a tub; a drying pocket disposed at least one lateral wall of the tub, that is in thermal contact with the tub and that provides the condensation of the humid air inside the tub by being cooled in the drying step; a heat pump disposed inside the body, that provides the heating of the water to be used in the washing step and that has a first heat exchanger drawing heat from the ambient air, a second heat exchanger transferring the heat received from the first heat exchanger to the wash water and a compressor fluidly connected to the first heat exchanger and the second heat exchanger, realizing the refrigerant cycle, and a drip tray disposed immediately under the first heat exchanger, wherein the water condensing on the first heat exchanger is collected.

1 . A dishwasher comprising a body; a tub that is disposed inside the body and wherein the steps of washing, rinsing and drying are realized; a drying pocket that is disposed at least one lateral wall of the tub, that is in thermal contact with the tub and that provides the condensation of the humid air inside the tub by being cooled in the drying step; a heat pump that is disposed inside the body, that provides the heating of the water to be used in the washing step and that has a first heat exchanger drawing heat from the ambient air, a second heat exchanger transferring the heat received from the first heat exchanger to the wash water and a compressor fluidly connected to the first heat exchanger and the second heat exchanger, realizing the refrigerant cycle, and a drip tray that is disposed immediately under the first heat exchanger, wherein the water condensing on the first heat exchanger is collected, characterized by a water duct that extends between the drying pocket and the drip tray, a pump that is disposed on the water duct and that enables the water in the drip tray to be delivered to the drying pocket, a hole that is arranged on the drying pocket and that opens into the tub and a control unit that enables the water collected in the drip tray to be delivered to the drying pocket, further providing the discharge of the water in the drying pocket into the tub by means of the hole by controlling the pump. 
     
     
         2 . A dishwasher as in  claim 1 , characterized by a channel wherein the water transferred from the pump is passed so as to cool the drying pocket, the channel being disposed on the drying pocket and having an inlet enabling the water delivered to the drying pocket to enter therein and an outlet fluidly connected to the hole. 
     
     
         3 . A dishwasher as in  claim 2 , characterized by the channel that is disposed on at least one surface of the tub. 
     
     
         4 . A dishwasher as in  claim 3 , characterized by the channel that is bent in serpentine form so as to cover at least one surface of the tub. 
     
     
         5 . A dishwasher as in  claim 3 , characterized by the channel that surrounds the lateral surfaces of the tub all around. 
     
     
         6 . A dishwasher as in  claim 2 , characterized by a first valve that is connected to the inlet and a second valve that is connected to the outlet and both controls the flow of the water in the channel. 
     
     
         7 . A dishwasher as in  claim 6 , characterized by the control unit that keeps the first valve and the second valve closed, thus enables the water to be kept in the channel. 
     
     
         8 . A dishwasher as in  claim 1 , characterized by a circulation pump that is disposed on the channel and that enables the water in the channel to be circulated in the channel. 
     
     
         9 . A dishwasher as in  claim 1 , characterized by an opening that is arranged on the lateral surface of the tub and that opens into the drying pocket. 
     
     
         10 . A dishwasher as in  claim 9 , characterized by a fan that directs the humid air inside the tub towards the drying pocket so as to pass through the opening. 
     
     
         11 . A dishwasher as in  claim 4 , characterized by the channel that surrounds the lateral surfaces of the tub all around. 
     
     
         12 . A dishwasher as in  claim 3 , characterized by a first valve that is connected to the inlet and a second valve that is connected to the outlet and both controls the flow of the water in the channel. 
     
     
         13 . A dishwasher as in  claim 4 , characterized by a first valve that is connected to the inlet and a second valve that is connected to the outlet and both controls the flow of the water in the channel. 
     
     
         14 . A dishwasher as in  claim 5 , characterized by a first valve that is connected to the inlet and a second valve that is connected to the outlet and both controls the flow of the water in the channel. 
     
     
         15 . A dishwasher as in  claim 2 , characterized by an opening that is arranged on the lateral surface of the tub and that opens into the drying pocket. 
     
     
         16 . A dishwasher as in  claim 3 , characterized by an opening that is arranged on the lateral surface of the tub and that opens into the drying pocket. 
     
     
         17 . A dishwasher as in  claim 4 , characterized by an opening that is arranged on the lateral surface of the tub and that opens into the drying pocket. 
     
     
         18 . A dishwasher as in  claim 5 , characterized by an opening that is arranged on the lateral surface of the tub and that opens into the drying pocket. 
     
     
         19 . A dishwasher as in  claim 6 , characterized by an opening that is arranged on the lateral surface of the tub and that opens into the drying pocket. 
     
     
         20 . A dishwasher as in  claim 7 , characterized by an opening that is arranged on the lateral surface of the tub and that opens into the drying pocket.