Refrigeration device and water dispenser

Abstract

The invention relates to the technical field of household appliances, in particular to a refrigeration device and a water dispenser. The refrigeration device comprises an evaporator, an anti-freezinglayer and a medium storage box for storing a medium (such as drinking water), wherein the evaporator is arranged on the outer wall face of the medium storage box, the anti-freezing layer is arranged at the position, corresponding to the evaporator, of the inner wall face of the medium storage box, or the evaporator is arranged in the medium storage box, and the anti-freezing layer is arranged on the outer surface of the evaporator. When low evaporation temperature of the evaporator is selected, the temperature of the drinking water located in the medium storage box and around the evaporator can be quickly reduced; due to the fact that the anti-freezing layer is arranged at the position, corresponding to the evaporator, in the medium storage box, it can be guaranteed that no freezing phenomenon occurs when the refrigeration device obtains the low-temperature drinking water, and the good refrigeration effect of the refrigeration device is guaranteed.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a refrigeration device and a water dispenser. Background technique [0002] Water dispenser is a device that heats up or cools down bottled pure water (or mineral water) and makes it convenient for people to drink. Bottled water is placed above the water dispenser for supporting use with bottled water. Water dispensers are divided into three types: warm, ice-heated, and ice-warmed. [0003] The working principle of the compressor-type refrigeration water dispenser is: the compressor starts to run, absorbs the refrigerant vapor that has absorbed heat and vaporized in the evaporator, and then compresses it into high-temperature and high-pressure gas, and then sends the high-temperature and high-pressure gas to the condenser , through the condenser to the outside air to radiate heat and condense into a high-pressure liquid, and then flow into the evaporator through the...

AI Technical Summary

Problems solved by technology

[0004] Traditional compressor-type refrigeration water dispensers usually produce cold water at a temperature between 6°C and 10°C, and it is difficult to obtain drinking water at a lower temperature

This is because, if you want to obtain low-temperature drinking water through a traditional compressor-type refrigeration water dispenser, you can set a cool storage medium with a low evaporation temperature inside the evaporator or adjust the opening of the throttle valve to make the drinking water around the evaporator The temperature drops rapidly, but this method leads to excessive overcooling of the drinking water around the evaporator, resulting in freezing at the position near the evaporator that is in contact with the drinking water

On the one hand, the formed ice layer will affect the heat transfer efficiency of the evaporator; on the other hand, heat will be released during the freezing process, which will affect the cooling effect of drinking water

In addition, it is also possible to set cold storage working fluid with high evaporation temperature inside the evaporator or adjust the opening of the throttle valve. The compressor needs to obtain low-temperature drinking water under high-load working conditions, but high-load working conditions will Seriously affect the service life of the compressor, thereby reducing the cooling efficiency of the compressor-type refrigeration water dispenser

In summary, it is difficult to obtain low-temperature drinking water from traditional compressor refrigeration water dispensers

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