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Ternary-cycle air-cooled refrigerator and defrosting method thereof

An air-cooled refrigerator, three-cycle technology, applied in household refrigerators, cooling fluid circulation devices, defrosting, etc., can solve problems such as increasing energy consumption, blocking air circulation, and affecting refrigeration performance.

Active Publication Date: 2019-05-24
河南新飞制冷器具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the frost layer condensed on the evaporator will affect the cooling performance, and even block the air circulation, which will cause the temperature of the box to rise, affect the cooling effect, and increase energy consumption

Method used

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Examples

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Comparison scheme
Effect test

Embodiment Construction

[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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Abstract

The invention discloses a ternary-cycle air cooled refrigerator. An electrical control device internally stores parameters such as a refrigerating fan operating target time parameter LCFSJ. The defrosting method comprises a freezing chamber defrosting method, a refrigerating chamber defrosting method and a variable temperature chamber defrosting method. The freezing chamber defrosting method comprises a defrosting entering preparing step, a defrosting preparing step, a defrosting entering step, a defrosting step and a defrosting existing step. According to the ternary-cycle air-cooled refrigerator and the defrosting method thereof, considering specific working conditions in the operation process of the refrigerator, accurate matching of the defrosting control and the actual working conditions is realized, the defrosting effect is ensured, the condition that defrosting is carried out when defrosting is not needed is avoided, frequent defrosting is avoided, excessive starting of a defrosting electrical heater is avoided, so that energy is saved, and a phenomenon that defrosting cannot exit is prevented.

Description

technical field [0001] The invention relates to an air-cooled refrigerator and a defrosting method for the air-cooled refrigerator. Background technique [0002] The air-cooled refrigerator is called a frost-free refrigerator. The fan and air duct system inside the air-cooled refrigerator are used to blow cold air from the air outlet to the inside of the box to freeze and refrigerate food. As the air circulates, the hot air and water vapor are sucked into the return air duct. When the hot air passes through the evaporator, the water vapor freezes on the surface of the evaporator to form a frost layer, so that the frost inside the box can be removed. However, the frost layer condensed on the evaporator will affect the cooling performance, and even block the circulation of the air. On the contrary, it will cause the temperature of the box to rise, affect the cooling effect, and increase energy consumption. Whether it is a single-cycle, double-cycle or three-cycle refrigeratio...

Claims

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Application Information

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IPC IPC(8): F25D11/02F25D17/06F25D21/06F25D21/08F25D29/00
Inventor 何晖王鸿海仪志恒
Owner 河南新飞制冷器具有限公司
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