Air-cooled frostless double-door refrigerator

Abstract

The air-cooled frostless double-door refrigerator comprises an evaporator chamber, a press bin, a control device and a ventilation pipeline communicating the evaporator chamber with the press bin, a draught fan and a baffle used for opening or closing the ventilation pipeline are arranged in the ventilation pipeline, and the control device controls the draught fan to rotate in the first rotating direction; the air-cooled frostless double-door refrigerator is characterized in that an evaporator compartment is arranged in the compressor bin, an auxiliary device for assisting the surface of the evaporator in defrosting is arranged in the evaporator compartment, a communicating mechanism is connected between the evaporator compartment and the bottom of the compressor bin, and a balance mechanism for driving the communicating mechanism to be opened and closed is arranged between the communicating mechanism and the evaporator compartment. And the fan sucks hot air into the evaporator chamber, and meanwhile, the sweeping plate is driven to sweep frost on the surface of the evaporator and accelerate falling of frost, so that the defrosting effect on the surface of the evaporator is improved, and it is ensured that the evaporator is effectively defrosted within the first steering operation time.

Description

technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to an air-cooled frost-free double-door refrigerator. Background technique [0002] Refrigerator is a kind of refrigeration equipment that keeps a constant low temperature, and it is also a civilian product that keeps food or other items in a constant low temperature and cold state. The commonly used refrigerators on the market can be divided into direct cooling refrigerators and air-cooling refrigerators. Direct cooling refrigerators refer to refrigerators with frost. The structure of direct cooling refrigerators is relatively simple, and the evaporator is directly displayed in the cabinet. It is usually used for economical products with two doors. Most of the three-door refrigerators are also direct cooling refrigerators. The advantages of direct cooling refrigerators It saves electricity. Its evaporator is placed next to the inner wall of the refrigerator. When th...

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Problems solved by technology

[0003] Although there is no frost inside the air-cooled refrigerator, frost still forms on the surface of its evaporator, so the refrigerator still needs to be defrosted regularly. During the defrosting process, a heater is used to heat the ice on its surface , to realize the ice cube falling, and then evaporate, but there will still be ice water or ice cubes remaining in the air duct, and there will be a phenomenon of refreezing, and according to the existing application number produced by Qingdao Haier Refrigerator Co., Ltd.: CN201910222843 .9, discloses an air-cooled refrigerator. In this patent application, although a ventilation duct is arranged between the compressor and the evaporator, and a fan is arranged inside the ventilation duct, when defrosting, the ventilation duct is opened to dissipate the hotter air in the compressor. The air directly passes into the evaporator to remove the frost on the surface of the evaporator. However, in the removal process, it is necessary to completely rely on the hot air in the ventilation duct to remove the frost adhered to the surface of the evaporator. The duration of a steering rotation is limited, so that the removal of frost is not complete; and the air pressure in the evaporator is continuously increasing. When the air pressure increases to a certain level, it will cause damage to the internal structure of the evaporator and greatly shorten the evaporation. The practical life of the device

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