KR100260449B1 - A method for controlling a refrigerator having sleeping mode - Google Patents

Abstract

PURPOSE: A method is provided to prevent deterioration of performance and avoid disturbance to user's sleep by driving refrigerating and freezing compartment fans so as to increase the indoor temperature of the refrigerating compartment and freezing compartment two hours before the user bed time. CONSTITUTION: A method comprises a step(S101) judging whether a sleep mode operation key is input by a user; a step(S102,S103) of checking input frequency and time interval of the sleep mode operation key for a predetermined time period, if the sleep mode operation key is input; a step(S104) of judging whether it is a predetermined time before the user bed time, if the input frequency of the sleep mode operation key reaches a predetermined level; a step(S105,S106) of operating freezing and refrigerating compartment fans so as to increase the temperature of refrigerating and freezing compartments to a level higher than a predetermined temperature, if it is a predetermined time before the user bed time; and a step(S107,108) of operating freezing and refrigerating compartments in normal mode, if else.

Description

How to control the sleep function refrigerator

The present invention relates to a refrigerator, and more particularly, to a control method of a sleep function refrigerator for raising a temperature inside a freezer / freezer compartment 2 hours before a user sleeps.

In general, a refrigerator is an electronic product used for keeping food fresh for a predetermined period of time. As shown in FIG. 1, the refrigerator is divided into a main body 10 and a freezer compartment for freezing and storing food in the main body 10. (11) and the refrigerating compartment 12 for refrigerating, the freezer compartment 13 installed at the front of the main body 10 to open and close the freezer compartment 11, and the refrigerating compartment door 14 for opening and closing the refrigerating compartment 12; It is largely composed of a freezing cycle for making cold air required for cooling the freezing chamber 11 and the refrigerating chamber 12, and cold air supply means for sending the cold air made in the freezing cycle to the freezing chamber 11 and the refrigerating chamber 12.

As shown in FIG. 2, the refrigerating cycle of the refrigerator includes a compressor 15 for compressing a low-temperature, low-pressure gas refrigerant into a high-temperature, high-pressure gas refrigerant, and condensing the high-temperature, high-pressure gas refrigerant to a high-temperature, high-pressure pressure. A condenser 16 for converting a liquid refrigerant, a capillary tube 17 for converting the high temperature and high pressure liquid refrigerant into a low temperature and low pressure liquid refrigerant, and a low temperature and low pressure gas refrigerant for the low temperature and low pressure liquid refrigerant. And an evaporator 18 for evaporating the furnace, and a connecting pipe 19 serving as a moving passage of the refrigerant while integrating the respective components.

Therefore, when the refrigeration chamber 11 is filled with the food for freezing and the refrigeration chamber 12 is supplied with the refrigerated food in the state of filling the refrigerated food, the compressor 15 constituting the refrigeration cycle is driven under the control signal of the controller to operate at low temperature and low pressure. The gas refrigerant is compressed into a gas refrigerant of high temperature and high pressure.

The compressed high-temperature, high-pressure gas refrigerant is guided to the connecting pipe 19 and condensed into a high-temperature, high-pressure liquid refrigerant while passing through the condenser 16. The condensed high-temperature, high-pressure liquid refrigerant is transferred to the connecting pipe 19. Guided through the capillary tube 17, the temperature and pressure is rapidly converted into low-temperature, low-pressure liquid refrigerant and then guided to the connecting pipe 19 to pass through the evaporator 18 to convert to low-temperature, low-pressure gas refrigerant The evaporator 18 is then evaporated. At this time, the ambient air is heat-exchanged by the evaporation of the evaporator 18 so that cold air is generated.

As such, the cold air generated in the evaporator 18 is partially supplied to the freezing chamber 11 by the cold air supply means to cool the freezing chamber 11, so that the food stored in the freezing chamber 11 is frozen and a portion of the cold chamber 12 is cooled. Since the refrigerator is cooled to the refrigerator compartment 12, the food stored in the refrigerator compartment 12 is refrigerated.

The conventional refrigerator configured as described above has a problem of disturbing the user's sleep due to noise caused by the start of the refrigerator / freezer compartment fan of the refrigerator when the user sleeps.

The present invention has been made to solve the above problems of the prior art, an object of the present invention is to drive the freezer / refrigerator compartment fan 2 hours before bedtime of the user by raising the internal temperature of the freezer / refrigerator compartment 1 ℃ It is to provide a control method of the sleep function refrigerator to stop the operation of the freezer / refrigerator compartment fan at bedtime to remove the noise caused by the operation of the freezer / refrigerator compartment fan to achieve a comfortable sleep when the user sleeps.

The control method of the sleep function refrigerator according to the present invention includes determining whether the sleep operation key is applied by the user during normal operation of the refrigerator, and applying the sleep operation key to the refrigerator at predetermined time intervals for a predetermined period of time. Determining whether the sleep operation key has been applied to the central control unit more than a predetermined number of times at a predetermined time interval for a predetermined period of time, and when the sleep operation key is applied to the central control unit of the refrigerator more than a predetermined number of times, Determining a previous authorization; driving the freezer / refrigerator fan if the user's bedtime is earlier than a predetermined time and raising the temperature of the freezer / refrigerator above the predetermined temperature; and if the user's bedtime is not earlier than the predetermined time, freezing / Including the normal operation of the refrigerator compartment to ensure that the user to sleep at bedtime There used.

1 is a longitudinal sectional view showing a main configuration of a general refrigerator;

2 is a block diagram showing a refrigeration cycle of a typical refrigerator;

3 is a block diagram of a refrigerator having a sleep driving key according to the present invention;

4 is a view illustrating a sleep operation key and a sleep operation display unit of FIG. 3 installed at a predetermined position outside the refrigerator;

5 is a flowchart illustrating a control method of a sleep function refrigerator according to the present invention.

Explanation of symbols on the main parts of the drawings

20: door open and close detection unit 21: freezer compartment temperature detection unit

22: central control unit 23: ROM

24 RAM 25 Compressor

26: freezer compartment fan drive unit 27: the sleep operation key

28: sleep operation display unit

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of a refrigerator having a sleep operation key and a control method thereof according to the present invention will be described.

3 is a block diagram illustrating a refrigerator according to the present invention, FIG. 4 is a view illustrating a sleep operation key and a sleep operation display unit of FIG. 3 installed at a predetermined position outside the refrigerator, and FIG. 5 is a view of the sleep function refrigerator according to the present invention. A flow chart showing a control method.

Referring to Figure 3, the refrigerator according to the present invention, the door opening and closing detection unit 20 for detecting whether the door of the refrigerator opening or closing, the freezer compartment temperature detecting unit 21 for detecting a predetermined temperature of the freezer of the refrigerator, freezer compartment temperature detection The central control unit 22 controls the entire system according to the predetermined temperature sensed by the unit, a ROM 23 in which a program operates according to the control signal of the central control unit 22, and the central control unit 22 is selected. RAM 24 which stores data and reads out the stored data, and which is controlled by the central control unit 22 according to a predetermined temperature detected by the freezer compartment temperature sensing unit 21 and is a low-temperature, low-pressure gas in the refrigerator. The compressor 25 compresses the refrigerant into a high-temperature, high-pressure gas refrigerant, and the high-temperature, high-pressure gas refrigerant generated by the compressor 25 is provided through a condenser (not shown), a capillary tube (not shown), and an evaporator (not shown). Converted to a low-temperature, low-pressure gas refrigerant A refrigeration / refrigeration chamber fan 26 which sends cold air of low-temperature and low-pressure gas refrigerant to the refrigerating and refrigerating chamber, a sleep operation key 27 for inputting a sleep operation key by the user to the central control unit 22, and It is composed of a sleep operation display unit 28 to inform the user when the sleep operation key 27 is applied to the central control unit 22.

The sleep operation key 27 and the sleep operation indicator 28 are provided at a predetermined position outside the refrigerator as shown in FIG.

The operation of the control method of the sleep function refrigerator according to the present invention configured as described above will be described with reference to FIG. 5.

First, it is determined whether the sleep driving key 27 is applied from the user during normal operation of the refrigerator (S101).

When the sleep operation key 27 is applied to the refrigerator, the sleep operation display unit 28 installed on one side of the refrigerator is turned on, and the central controller 22 is 10 hours apart (0 o'clock to 2 o'clock) for 10 days. (2 o'clock to 4 o'clock), ... (20 o'clock to 22 o'clock) (22 o'clock to 24 o'clock) Check how many times the sleep operation key 27 is applied (S102) and the sleep operation key (for 10 days It is determined whether 27) has been applied more than eight times (S103).

Subsequently, when the sleep operation key 27 is applied to the central control unit 22 of the refrigerator more than eight times, it is determined whether the user's sleep time (22 o'clock to 24 o'clock) is 2 hours before (20 o'clock to 22 o'clock). S104).

If the user's bedtime (22:00 to 24:00) is two hours earlier (20 to 22:00), the freezer / refrigerator fan 26 is driven to raise the temperature of the freezer / refrigerator by 1 ° C (S105) (S106). ),

If the user's sleep time (22 o'clock to 24 o'clock) is not two hours earlier (20 o'clock to 22:00), the freezer / refrigeration chamber is normally operated (S107) (S108).

Therefore, when the user's bedtime is 2 hours before (20 o'clock to 22:00), the freezer / refrigerator fan 26 is driven to raise the temperature of the freezer / freezer by 1 ° C. to remove frost on the evaporator.

The control method of the sleep function refrigerator according to the present invention drives the freezer / refrigerator fan 2 hours before bedtime of the user to increase the internal temperature of the freezer / refrigerator by 1 ° C. so as to prevent the performance deterioration during the sleep function operation. do.

Claims (3)

Determining whether a sleep operation key is applied from a user during normal operation of the refrigerator; Checking how many times the sleep driving key has been applied to the refrigerator at a predetermined time interval for a predetermined period of time and determining whether the sleep driving key has been applied to the central control unit more than a predetermined number of times at a predetermined time interval for a predetermined period of time; Determining whether the user's sleeping time is before a predetermined time when the sleep driving key is applied to the central control unit of the refrigerator more than a predetermined number of times; Driving a freezing / refrigeration chamber fan to raise the temperature of the freezing / refrigeration chamber by a predetermined temperature or more when the user's sleeping time is earlier than a predetermined time; If the user's bedtime is not earlier than a predetermined time, the control method of the refrigerator, characterized in that it comprises the step of operating the freezer / refrigerator compartment normally. The method of claim 1, And the sleep operation key is applied to the central control unit of the refrigerator at least 8 times at intervals of 2 hours for 10 days. The method of claim 1, And controlling the temperature of the freezer / freezer compartment by 1 ° C. by driving a freezer / refrigerator fan when the user's sleeping time is earlier than a predetermined time.

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