Pump and dishwasher comprising the same

Abstract

The present disclosure relates to a pump which sends washing water and generates steam in order to wash the dishes or the cooking utensils, and a dishwasher including the same. The pump according to an embodiment of the present invention includes a housing; an impeller which is disposed inside the housing and flows washing water; and a heater which is coupled to a lower side of the housing and generates steam by heating the washing water in the housing, wherein the housing includes: a pump lower portion through which the washing water is introduced by rotation of the impeller; and a pump upperportion through which the washing water flows out by rotation of the impeller and the steam generated by the heater flows out, thereby generating steam.

Description

technical field [0001] The present invention relates to a dishwasher, and more particularly, to a pump for sending washing water and generating steam to wash dishes or cookware and a dishwasher including the same. Background technique [0002] A dishwasher is a home appliance for washing dirt such as food waste on dishes or cookware by high-pressure washing water sprayed from a spray arm (hereinafter, referred to as "washing object"). A dishwasher generally includes a tub forming a washing chamber and a sump mounted on the bottom of the tub to store washing water. Subsequently, the wash water is moved to the spray arm by the pumping operation of the wash pump installed inside the sump, and the wash water moved to the spray arm is sprayed at high pressure through spray holes formed in the spray arm. Then, the cleaning water sprayed at high pressure hits the surface of the cleaning object, so that the dirt on the cleaning object falls to the bottom of the tub. [0003] Meanw...

AI Technical Summary

Problems solved by technology

In addition, since heat transfer can only be performed when the heater is in contact with washing water, there are problems in that heat exchange efficiency decreases due to adhesion of foreign matter to the surface of the heater, and durability deteriorates because the surface of the heater is corroded

However, there is a problem in that the pressure of the wash water sprayed through the spray arm is lowered by introducing air or discharging wash water through the flow path for discharging steam.

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