Ultrasonic wave automatic defrosting device for refrigerator

An ultrasonic and refrigerator technology, which is applied in the field of ultrasonic automatic defrosting devices for refrigerators, can solve the problems of wasting electric energy, refrigerator temperature rise, and electricity consumption, and achieve the effects of improving heat exchange efficiency, maintaining freezing temperature, and ensuring freezing quality
CN1888764AInactive Publication Date: 2007-01-03SHANGHAI JIAO TONG UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
SHANGHAI JIAO TONG UNIV
Publication Date
2007-01-03
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

An ultrasonic automatic defrost equipment for refrigerator in the refrigeration technology field, including the ultrasonic producer, the ultrasonic energy transducer and the frost-layer inductor. The ultrasonic energy transducer sticks near one side of the cold-producing medium pipeline, the ultrasonic producer fixes beside the ultrasonic energy transducer and cannot touch with the evaporator, the frost-layer inductor sets near the evaporator in the freezing chamber of the refrigerator and consist of two probes, one is connected with the evaporator, there is a gap between the other probe and the evaporator. The invention is: at the condition of maintaining the temperature of the freezing chamber, removes the frost layer of the evaporator surface; it not only improves the heat exchange efficiency of the evaporator and ensures the refrigeration capacity at the higher level because it defrosts when the frost-layer is thin, but also ensures the freezing quality of the food by maintaining the temperature of the freezing chamber during the defrost process.
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Description

technical field

[0001] The invention relates to a device in the technical field of refrigeration, in particular to an ultrasonic automatic defrosting device for a refrigerator. Background technique

[0002] During the use of the refrigerator, the food in the box and the moisture in the air will form a frost layer on the surface of the evaporator. Because the thermal conductivity of frost is very small, when the frost layer is too thick, it will seriously hinder the heat exchange of the evaporator, thereby significantly affecting the cooling capacity of the refrigerator. Therefore, when the frost layer on the surface of the evaporator reaches a certain thickness, it needs to be defrosted in time (the existing method defrosts when the frost layer reaches about 5 mm).

[0003] Find through literature search to prior art, in prior art, application number is 200510093253, the name is the invention patent of refrigerator, utilizes electric heater to heat frost layer, impels frost...

Claims

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