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A method for defrosting a dual-system air-cooled refrigerator

An air-cooled refrigerator and dual-system technology, which is applied in refrigeration and liquefaction, defrosting, refrigerators, etc., can solve the problem of high energy consumption of air-cooled refrigerators and achieve the effect of reducing energy consumption

Active Publication Date: 2017-10-27
HENAN XINFEI ELECTRICAL EQUIP
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Problems solved by technology

[0005] In addition, the current electric heating equipment uses electric heating tubes, generally with a power of 100W-280W. Since the frequency and time of defrosting are factors that affect the energy consumption of air-cooled refrigerators, the existing air-cooled refrigerators have a low energy consumption during defrosting. high energy consumption

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  • A method for defrosting a dual-system air-cooled refrigerator

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Embodiment Construction

[0028] Below in conjunction with accompanying drawing and embodiment the present invention is described in detail:

[0029] Such as figure 1 As shown, the defrosting method of the dual-system air-cooled refrigerator of the present invention includes a freezing chamber defrosting method and a cold chamber defrosting method:

[0030] The method of defrosting the freezer includes the following steps:

[0031] Step A1: Use the electronic control device of the air-cooled refrigerator to collect the cumulative running time of the compressor. When the cumulative running time of the compressor reaches TDFTACC, enter step A2; wherein, TDFTACC is the preset cumulative running cycle of the compressor. In the present invention, 4.5 Hours ≤ TDFTACC ≤ 15 hours;

[0032] Step A2: Use the freezer temperature sensor to collect the difference in freezing room temperature. If the difference in freezing room temperature is less than or equal to THFOFF, go to step A3; When the accumulative oper...

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Abstract

The invention discloses a method for defrosting a dual-system air-cooled refrigerator, which includes a method for defrosting a freezer and a method for defrosting a refrigerator: the method for defrosting the freezer includes the following steps: A1: collect the accumulated running time of the compressor; A2: collect The freezing room temperature is poor; A3: Control the shutdown of the compressor, control the start and stop of the freezing and defrosting electric heating equipment according to the surface temperature of the evaporator in the freezing room, and then control the starting of the compressor and control the operation of the refrigerating fan; the defrosting method of the refrigerating room includes the following steps : B1 collects the accumulative running time of the compressor; B2: controls the refrigerating room to stop cooling and the refrigerating fan motor to work; then controls the refrigerating and defrosting electric heating equipment to start and stop and the compressor to run according to the surface temperature of the evaporator in the refrigerating room. The present invention can finely adjust the defrosting process by using the existing defrosting technology, further reduce the defrosting energy consumption, and realize high-efficiency defrosting control.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a method for defrosting a dual-system air-cooled refrigerator. Background technique [0002] The defrosting technology inside the air-cooled refrigerator box is to use the fan and air duct system inside the air-cooled refrigerator to blow cold air from the air outlet to the inside of the box to freeze and refrigerate food. As the air circulates, hot air and water vapor are sucked into the return air duct, and when passing through the evaporator, they freeze on the surface of the evaporator to form a frost layer, so that the frost inside the box can be removed. [0003] However, the frost layer condensed on the evaporator will affect the refrigeration performance of the air-cooled refrigerator, and even block the circulation of the air, which will cause the temperature of the box to rise, affect the cooling effect, and increase energy consumption. Therefore, it is necessary ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25D21/08F25B47/02F25D29/00
CPCF25B47/02F25D21/08F25D29/003
Inventor 王鸿海牛九胜何晖
Owner HENAN XINFEI ELECTRICAL EQUIP
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