Three-cycle air-cooled refrigerator and its defrosting method
An air-cooled refrigerator and three-cycle technology, which is applied in household refrigerators, cooling fluid circulation devices, defrosting, etc., can solve the problems of box temperature rise, blocked air circulation, and affecting refrigeration performance, so as to reduce energy consumption of refrigerators, Save energy and ensure the effect of defrosting
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[0067] The three-cycle air-cooled refrigerator of the present invention includes a box body with a refrigerating room, a variable temperature constant and a freezing room, and an electric control device and a refrigeration system are arranged in the box body. Connected compressor, condenser, expansion valve and evaporator. The evaporators include freezer evaporators, refrigerator evaporators and variable room evaporators. The freezer evaporator is equipped with a freezing evaporation temperature sensor, and the refrigerator There is a refrigeration evaporation temperature sensor, and a variable temperature evaporation temperature sensor is installed at the evaporator of the variable temperature chamber; a refrigerator door switch is installed at the refrigerator door, a freezer door switch is installed at the freezer door, and a variable temperature door switch is installed at the variable temperature chamber door The refrigerating room is correspondingly equipped with a refrig...
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