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Defrosting methods for double-system air-cooling 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: 2016-06-15
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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  • Defrosting methods for double-system air-cooling 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 operatin...

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Abstract

The invention discloses defrosting methods for a double-system air-cooling refrigerator. The defrosting methods comprise the freezing chamber defrosting method and the refrigerating chamber defrosting method. The freezing chamber defrosting method comprises the following steps that A1, the accumulative operating time of a compressor is collected; A2, the temperature difference of a freezing chamber is collected; and A3, the compressor is controlled to stop, freezing defrosting electric heating equipment is controlled to start or stop according to the surface temperature of a freezing chamber evaporator, then the compressor is controlled to start, and a refrigerating fan is controlled to work. The refrigerating chamber defrosting method comprises the following steps that B1, the accumulative operating time of the compressor is collected; and B2, a refrigerating chamber is controlled to stop refrigeration, a refrigerating fan motor is controlled to work, and then refrigerating defrosting electric heating equipment is controlled to start or stop and the compressor is controlled to operate according to the surface temperature of a refrigerating chamber evaporator. According to the defrosting methods for the double-system air-cooling refrigerator, the defrosting process is adjusted in a fine mode by using the existing defrosting technology, the defrosting energy consumption is further lowered, and high-efficiency defrosting control is realized.

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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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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