Refrigerator

Abstract

The invention provides a refrigerator with high energy-saving performance and capability of preventing storage chamber from being dry and reducing defrosting frequency and power consumption. The refrigerator comprises a storage chamber, a first evaporator (22), a second evaporator (23), a switching valve (25), a fan 13, a first air channel opening and closing device (11) and a second air channel opening and closing device (12), wherein the storage chamber is at least divided into a refrigerating chamber (3) and a freezing chamber (4); the first evaporator (22) is arranged in a cooling chamber (8); the cooling chamber (8) is connected with the refrigerating chamber (3) and the freezing chamber (4) via an air supply channel (9) and an air supply channel (10); the second evaporator (23) is arranged in the freezing chamber (4); the switching valve (25) is used for switching a refrigerant to flow to a refrigerant channel connected with the second evaporator (23); the fan (13) is used for enabling the air cooled by the first evaporator (22) to flow from the cooling chamber (8) to the refrigerating chamber (3) and the freezing chamber (4); the first air channel opening and closing device (11) is inserted into the air supply channel (9) connected with the refrigerating chamber (3); the second air channel opening and closing device (12) is inserted into the air supply channel (9) connected with the freezing chamber (4). The refrigerator is capable of preventing the refrigerating chamber (3) and the freezing chamber (4) from being dry and reducing defrosting frequency and power consumption.

Description

technical field [0001] The invention relates to a refrigerator, which refrigerates and preserves food in a storage room, in particular to a refrigerator with a forced circulation evaporator and a direct cooling evaporator. Background technique [0002] Among the traditional refrigerators, there is a kind of refrigerator that forcibly circulates the air cooled by the evaporator in the storage room (for example, the patent document Japanese Patent Application Laid-Open No. 2011-58689 (pp. 6-7, figure 2 )). In such a refrigerator, the evaporator is disposed inside a cooling room separated from the storage room, and the air cooled by the evaporator is blown out by a fan and supplied to the storage room through a supply air duct. The storage room is usually divided into a plurality of storage rooms such as a refrigerator room and a freezer room, and the amount of cold air supplied to each storage room is controlled by opening and closing a damper provided on the supply air duct....

AI Technical Summary

Problems solved by technology

Such electric heaters for anti-freezing not only consume power, but also increase the cooling load, which increases the power consumption caused by cooling.

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