A method for controlling the defrosting of a refrigerator

A control method and refrigerator technology, applied in defrosting, refrigerators, refrigeration components, etc., can solve problems such as heat waste, achieve the effects of reducing energy consumption, reducing impact, and defrosting thoroughly

Active Publication Date: 2017-10-03
CHANGHONG MEILING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] When the frost-free air-cooled refrigerators on the market defrost, most of them use the defrost heater to defrost. The temperature of the evaporator when the refrigerator enters the defrost is generally relatively low. And when the refrigerator just enters the defrosting, the temperature of the refrigerant without capillary throttling is about 50 degrees higher than that of the evaporator, and this part of the heat is wasted

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  • A method for controlling the defrosting of a refrigerator
  • A method for controlling the defrosting of a refrigerator

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Embodiment Construction

[0024] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0025] see figure 1 , the present invention provides a refrigerator, the refrigeration system of which includes a frequency conversion compressor 1, an anti-condensation pipe 2, a condenser 3, a filter 4, a capillary tube 6, an evaporator 7 and a liquid storage A defrosting heater 9 is arranged on the evaporator 8 and the evaporator 7, and a defrosting branch is connected across the two ends of the capillary 6, and a solenoid valve 5 is arranged on the defrosting branch.

[0026] see figure 2 , the present invention also provides the defrosting control method of the refrigerator, comprising the following steps: ...

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Abstract

The invention discloses a defrosting control method of a refrigerator, comprising the following steps: when the refrigerator reaches the defrosting condition, controlling the rotation speed of the frequency conversion compressor to switch from the original first rotation speed to the second rotation speed; After running for t1 period, control the solenoid valve to open; after the solenoid valve opens for t2 period, control the inverter compressor to stop; control the defrost heater to open, solenoid valve to close, and the inverter compressor to return from the second speed to the original first speed ; When the defrost exit condition is reached, the defrost heater is controlled to be turned off, and the defrost ends. Compared with the prior art, the present invention has the following advantages: the defrosting control method provided by the present invention uses the heat of the refrigerant that has not been throttled by the capillary tube to defrost the evaporator before turning on the defrosting heater, thereby avoiding the waste of energy, And because the defrosting heating method is defrosting in the tube, the heating effect is more obvious, which reduces the load of the defrosting heater and reduces the energy consumption of the refrigerator when defrosting.

Description

technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to a defrosting control method for a refrigerator. Background technique [0002] When the frost-free air-cooled refrigerators on the market defrost, most of them use the defrost heater to defrost. The temperature of the evaporator when the refrigerator enters the defrost is generally relatively low. The evaporator is heated and defrosted; and when the refrigerator just enters the defrost, the temperature of the refrigerant that has not been throttled by the capillary is about 50 degrees higher than that of the evaporator, and this part of the heat is wasted. Contents of the invention [0003] The object of the present invention is to overcome the deficiencies of the prior art and provide a defrosting control method for a refrigerator. [0004] The present invention is achieved through the following technical solutions: [0005] A defrosting control method for a r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25D21/06F25D29/00F25B47/02
Inventor 尚殿波刘宏宇陈开松
Owner CHANGHONG MEILING CO LTD
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