A heat pump dishwasher and its control method

Abstract

The invention provides a heat pump type dishwasher and a control method of the same. The heat pump type dishwasher comprises a housing and a liner disposed in thehousing, wherein a heat pump system for heating washing water in the liner is arranged between the housing and the liner; an air duct system is further disposed in thehousing; the heat pump system is arranged between an air inlet and air outlets of the air duct system to exchange heat with the air duct system; the air duct system has the air inlet, a first air outlet and a second air outlet both controllably communicated with the air inlet; air discharging directions of the first and second air outlets are different; and the air duct system starts / opens the first air outlet or the second air outlet to change the air discharging direction. Air discharging directions of the heat pump system can be controlled via control of the open / close of the first air outlet or the second air outlet; relative air outlets can be controlled to start according to practical use environment; air with decreased temperature and discharged by the heat pump system can be fully utilized; and user use experience can be improved.

Description

technical field [0001] The invention relates to the technical field of washing equipment, in particular to a heat pump dishwasher and a control method thereof. Background technique [0002] Dishwashers are equipment used to automatically clean tableware such as bowls, chopsticks, plates, plates, knives, forks, etc. According to the structure, they can be divided into two categories: box type and conveyor type. It reduces labor intensity, improves work efficiency, and improves cleanliness and sanitation for the cooks in restaurants, hotels, and canteens of government agencies. Now, a variety of small dishwashers are on the market and are gradually entering ordinary families. [0003] Existing dishwashers all use heating tubes for the dishwasher. The heating tubes are built into the water tank at the bottom of the liner. When washing, the heating tubes are used to heat while the circulating pump circulates water to wash the dishes. But this method consumes a lot of power and...

AI Technical Summary

Problems solved by technology

[0006] First of all, although the dishwasher of the above-mentioned patent solves the problem of high heating power consumption of the heating tube to a certain extent, the heat pump system will affect the ambient temperature when it is working. Therefore, how to control the air output of the heat pump system of the dishwasher way, so that it can be fully utilized becomes a technical problem that needs to be solved

[0007] Secondly, the condenser of the above-mentioned dishwasher as a heat pump system is closely pasted or wound on the outer wall of the inner tank to achieve the purpose of heating the washing water in the inner tank. Heating efficiency is not high

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