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Cooling system and defrosting control method thereof

A technology of cooling system and control method, which is applied in the direction of defrosting, refrigeration and liquefaction, and cooling fluid circulation device, etc., which can solve the problems of affecting the output value of capacitance sensor and inaccurate detection, so as to minimize temperature change and reduce heater Frequency of operation, effect of reducing operation time

Inactive Publication Date: 2012-03-21
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the oscillation frequency of the sensor drive signal may affect the output value of the capacitive sensor according to the temperature change of the driver board
Therefore, the amount of frost formed on the evaporator may not be accurately detected

Method used

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  • Cooling system and defrosting control method thereof
  • Cooling system and defrosting control method thereof
  • Cooling system and defrosting control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0072] Exemplary embodiments are described below with reference to the drawings.

[0073] Each exemplary embodiment is adapted to control defrosting by accurately detecting whether or not frost has formed on an evaporator of a cooling system and the amount of formed frost by a frost detector using a capacitance sensor and controlling driving of a heater according to the detection result. operation, thereby increasing the defrosting efficiency of the cooling system and thus reducing power consumption. Exemplary embodiments are described below with reference to an example in which a cooling system is used in a refrigerator.

[0074] Exemplary embodiments are described below in conjunction with the case where the cooling system is used in a refrigerator adapted to store food for a longer period of time by repeating a refrigeration cycle to sequentially compress, condense, expand, and evaporate a refrigerant to keep the storage compartment at a low temperature. Stored in a fresh ...

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Abstract

The invention discloses a cooling system. The cooling system includes an evaporator to exchange heat with air, a frost detector installed on the evaporator to detect frost, and a control unit to determine whether a current time corresponds to a frost detection point, to control the frost detector to operate when the current time corresponds to the frost detection point, and to control a defrosting operation based on a frost detection signal from the frost detector. It is possible to accurately detect the amount of frost formed on the evaporator by executing the frost detection under constant frost detection environmental conditions.

Description

technical field [0001] The present invention relates to a cooling system that detects frost formed on an evaporator due to heat exchange and performs defrosting control according to the detected amount of frost, and a defrosting control method of the cooling system. Background technique [0002] The cooling system is adapted to cool an enclosed space by circulating a refrigerant through a refrigeration cycle. As such a cooling system, there are refrigerators, Kimchi refrigerators, air conditioners, and the like. [0003] Here, the refrigeration cycle includes four stages of changing the state of refrigerant, ie, a compression stage, a condensation stage, an expansion stage, and an evaporation stage. For this, the cooling system should include a compressor, condenser, expansion valve and evaporator. [0004] When gaseous refrigerant is supplied to the condenser after being compressed according to the operation of the compressor, the refrigerant in a compressed state is cool...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B47/00F25B49/02F25D21/02F25D29/00
CPCF25D21/006F25D21/02F25D21/004F25D21/06F25D29/00F25D2321/00F25D2700/10F25D2700/12
Inventor 金兑奎郭泫硕高泳哲
Owner SAMSUNG ELECTRONICS CO LTD
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