Cooling apparatus and frost detecting method thereof

a technology of cooling apparatus and frost detection, which is applied in the direction of domestic cooling apparatus, refrigeration machines, defrosting, etc., can solve the problems of excessive power consumption, inefficient removal method of frost formed on the evaporator, and inability to detect so as to accurately determine the amount of frost formed, accurately determine the noise contained in the signal received, and achieve the effect of easy and accurate determination
US20110185755A1Inactive Publication Date: 2011-08-04SAMSUNG ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
SAMSUNG ELECTRONICS CO LTD
Publication Date
2011-08-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

A cooling apparatus including a frost sensor to sense frost, a multiplexer having a first input terminal, to which the frost sensor is connected, and a second input terminal as a non-connected input terminal, a signal processor to subtract a signal input through the second input terminal from a signal input through the first input terminal, and to output a signal obtained by the subtraction, and a controller to detect an amount of frost sensed by the frost sensor, based on the output signal from the signal processor. It is possible to easily and accurately determine noise contained in a signal received from the frost sensor by determining, as noise, the signal received from the input terminal, to which the frost sensor is not connected, and subtracting the noise from the signal received from each input terminal, to which the frost sensor is connected.
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Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims the benefit of Korean Patent Application No. 2010-8391 filed on Jan. 29, 2010 in the Korean Intellectual Property Office, the disclosures of which are incorporated herein by reference in its entirety.BACKGROUND

[0002] 1. Field

[0003] Embodiments relate to a cooling apparatus and a frost detecting method thereof, and, more particularly, to a cooling apparatus capable of directly detecting frost formed on an evaporator due to heat exchange and a frost detecting method thereof.

[0004] 2. Description of the Related Art

[0005] A cooling apparatus is adapted to cool a confined space by circulating a refrigerant through a refrigeration cycle. As such a cooling apparatus, there are a refrigerator, a Kimchi refrigerator, an air conditioner, etc.

[0006] Here, the refrigeration cycle includes four stages to change the phase of the refrigerant, namely, compression, condensation, expansion, and vaporization stages. To this end, the cooli...

Claims

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