KR970022096A - How to control cold air temperature of refrigerator - Google Patents

Abstract

The present invention relates to a method for controlling a refrigerator's cold air temperature of a refrigerator, and a temperature sensor is mounted at a cold air supply part and a cold air return part of a refrigerator to maintain the refrigerator compartment at a set cold air temperature regardless of load input or door opening and closing. As a technical cold air temperature control method, the freezer temperature sensor senses the cold air temperature of the freezer compartment and the temperature sensor mounted on the cold air supply part and the cold air return part of the freezer compartment respectively supplies the cold air temperature and the elevated temperature from the cold compartment. The first step of detecting the cold air temperature returned to the cold air return duct, and if the detected cold air temperature of the freezer compartment is the compressor off temperature, the cold air temperature and the cold compartment supplied to the cold compartment detected by the temperature sensor mounted on the cold air supply part of the cold compartment The second step of comparing the first temperature set for control and the comparison result of the second step, the sensed refrigeration chamber If the cold air temperature is higher than the first temperature, the return air from the refrigerating compartment detected by the temperature sensor of the cold return region compares the second temperature set for the control of the refrigerating compartment, and at the same time, the cold air temperature supplied to the refrigerating compartment from the cold air temperature returned from the refrigerating compartment. A third step comparing the difference temperature subtracted from the third temperature preset for the control of the refrigerator compartment, and the third step comparison result, when the return cooling air temperature from the refrigerating compartment is higher than the second temperature or the difference temperature is higher than the third temperature. It is characterized in that the cold air temperature of the refrigerating compartment is higher than the cold air temperature set by the user, characterized in that the fourth step of driving the cold air temperature control device of the refrigerating compartment.

Description

How to control cold air temperature of refrigerator

As this is a public information case, the full text was not included.

2 is a cross-sectional view of a refrigerator showing a position where a temperature sensor according to the present invention is mounted;

3 is a control flowchart showing a method of adjusting a cold air temperature of a refrigerating chamber according to the present invention.

Claims (1)

By installing the corresponding temperature sensors 108, 104, 105 in the freezer compartment 100 and the cold air supply region 110 and the cold air return region 106 of the refrigerating chamber 103; The freezer compartment temperature sensor 108 senses the cold air temperature (F ° C.) of the freezer compartment 100 and is mounted on the cold air supply unit 110 and the cold air return unit 106 of the refrigerating compartment 103 respectively. A first step of sensing a cold air temperature (R1 ° C) supplied to the refrigerating compartment and a cold air temperature (R2 ° C) for which the elevated temperature from the refrigerating compartment is returned to the cold air return duct 109 respectively; When the detected cold air temperature (F ° C.) of the freezer compartment is the compressor off temperature, the cold air temperature (R 1 ° C.) and the refrigerating compartment 103 supplied to the refrigerating compartment detected by the temperature sensor 104 mounted on the cold air supply unit 110 of the refrigerating compartment. A second step of comparing a first temperature (X1 ° C.) set for control; As a result of the second step comparison, if the cold air temperature (R1 ° C) supplied to the refrigerating chamber to be sensed is higher than the first temperature (X1 ° C), the return chiller (R2) from the refrigerating room detected by the temperature sensor 105 of the cold return region 106 is detected. ℃) and the second temperature (X2 ℃) set for the control of the refrigerator compartment 103, and at the same time the difference temperature subtracted the cold air temperature (R1 ℃) supplied to the refrigerating chamber at the cold air temperature (R2 ℃) returned from the refrigerating compartment A third step of comparing (R2 ° C-R1 ° C) and a third temperature (5 ° C. or less X3 ° C.) preset for controlling the refrigerator compartment 103; As a result of the third stage comparison, when the return cooling air temperature (R2 ° C) from the refrigerating chamber is higher than the second temperature (X2 ° C) or the difference temperature (R2 ° C-R1 ° C) is higher than the third temperature (X3 ° C), And a fourth step of driving the cold air temperature control device of the refrigerating compartment 103 by determining that the cold air temperature of 103 is higher than the cold air temperature set by the user (-Y ° C.). ※ Note: The disclosure is based on the initial application.