KR101804629B1 - Refrigerator and control method thereof - Google Patents

Abstract

The present invention relates to a control method of a refrigerator and a refrigerator, and more particularly, to a control method of a refrigerator and a refrigerator in which a cabinet having a long space and equipped with a compressor is provided. A barrier for partitioning the storage space into a refrigerating chamber and a freezing chamber; An evaporator provided in the freezing chamber; A blowing fan provided in the freezing chamber for blowing cool air generated by the evaporator; A damper installed in the barrier for opening and closing the flow passage so that cool air of the evaporator can flow into the refrigerating chamber; A return duct provided in the barrier for allowing air in the refrigerating compartment to flow into the freezing compartment; And a control unit for controlling the operation of the compressor, the blowing fan, and the damper so that the refrigerating chamber and the freezing chamber maintain a predetermined temperature, and cooling the refrigerating chamber and the freezing chamber, wherein the controller controls the damper So as to be opened and closed continuously.

Description

[0001] The present invention relates to a refrigerator and a refrigerator,

The present invention relates to a refrigerator and a control method of the refrigerator.

Generally, a refrigerator is a household appliance that allows low-temperature storage of food in an internal storage space that is shielded by a door. To this end, the refrigerator is configured to cool the inside of the storage space by using cool air generated through heat exchange with the refrigerant circulating in the refrigeration cycle, thereby storing the stored food in an optimum state.

Such a refrigerator allows the temperature inside the refrigerator to be maintained at a predetermined temperature so that the food stored in the refrigerator can always be stored in the best condition. In order to maintain the set temperature, the inside must be sealed, and it is configured to have a structure capable of continuous cooling by supplying cold air using a refrigeration cycle.

The storage space in the furnace enables the cool air generated in the evaporator to be supplied to the interior space by driving the blowing fan, in order to maintain a constant temperature. At this time, the blowing fan is driven when the temperature in the furnace is higher than the set temperature, and the cool air is supplied to the storage space to cool the furnace. When the furnace temperature is lower than the set temperature, the blowing fan is stopped to stop the supply of cool air to the storage space.

Korean Patent Laid-Open Publication No. 1997-0070868 discloses a refrigerator in which a storage space is composed of a refrigerating chamber and a freezing chamber, and a freezing chamber is maintained at a set temperature by cold air generated in an evaporator provided in the freezing chamber. A damper is provided on the flow path of the cool air supplied to the refrigerating chamber, and the refrigerator is capable of supplying cold air so that the refrigerating chamber maintains the set temperature by opening and closing the damper.

In this case, when the compressor starts to be driven, the damper is opened and the freezer compartment and the refrigerating compartment are simultaneously cooled. At this time, when the operation of the refrigerating compartment having a higher set temperature is completed first and the damper is closed, It proceeds.

At this time, if the cooling operation of the freezing compartment is completed in the state where the operation of the refrigerating compartment is completed, the temperature of the freezing compartment rises to be higher than the set temperature and the damper for cooling the freezing compartment can be opened again.

In such a situation, the refrigerating chamber may be cooled again, but the high-temperature refrigerating chamber air is introduced into the freezing chamber again to increase the temperature of the freezing chamber and the operation time of the compressor becomes longer. Even if the temperature of the refrigerating chamber is lowered below the set temperature Further operation is inevitable for cooling the freezing chamber.

That is, the refrigerating chamber may be cooled more than once while the freezing chamber is once operated after the operation of the compressor is started. In such a situation, the power consumption may increase.

An object of the present invention is to provide a refrigerator and a control method of a refrigerator which can perform a cooling operation of a refrigerator in a driving section of a refrigerator in which the freezing compartment is cooled by delaying a time point at which a cooling operation of the refrigerating compartment is terminated .

In the embodiment of the present invention, when the cooling operation of the refrigerating chamber is performed twice or more during the operation period of the immediately preceding compressor, the ending point of the cooling operation of the next refrigerating chamber is delayed so that the operation of the refrigerating chamber can be performed once during the driving period of the compressor And a control method of the refrigerator and the refrigerator.

According to an embodiment of the present invention, there is provided a refrigerator including: a cabinet having a storage space and provided with a compressor; A barrier for partitioning the storage space into a refrigerating chamber and a freezing chamber; An evaporator provided in the freezing chamber; A blowing fan provided in the freezing chamber for blowing cool air generated by the evaporator; A damper installed in the barrier for opening and closing the flow passage so that cool air of the evaporator can flow into the refrigerating chamber; A return duct provided in the barrier for allowing air in the refrigerating compartment to flow into the freezing compartment; And a control unit for controlling the operation of the compressor, the blowing fan, and the damper so that the refrigerating chamber and the freezing chamber maintain a predetermined temperature, and cooling the refrigerating chamber and the freezing chamber, wherein the controller controls the damper So as to be opened and closed continuously.

The refrigerator compartment cooling operation starts with the refrigeration operation of the freezer compartment at the time of driving the compressor, and ends before the cooling operation of the freezer compartment is finished.

And the refrigerator compartment cooling operation is performed once in a driving period of the compressor.

When the additional refrigeration compartment cooling operation is started before the freezing compartment cooling operation is completed, the control unit adjusts the opening / closing cycle of the damper so that the ending point of the next refrigerating compartment cooling operation is delayed.

According to an embodiment of the present invention, there is provided a refrigerator including: a cabinet having a storage space and provided with a compressor; A barrier for partitioning the storage space into a refrigerating chamber and a freezing chamber; An evaporator provided in the freezing chamber; A blowing fan provided in the freezing chamber for blowing cool air generated by the evaporator; A damper installed in the barrier for opening and closing the flow passage so that cool air of the evaporator can flow into the refrigerating chamber; A return duct provided in the barrier for allowing air in the refrigerating compartment to flow into the freezing compartment; And a control unit for controlling the operation of the compressor, the blowing fan, and the damper so that the refrigerating chamber and the freezing chamber maintain the preset temperature, and cooling the refrigerating chamber and the freezing chamber, wherein the controller controls the cooling operation of the refrigerating chamber When the cooling operation of the refrigerating compartment is performed twice in the driving section of the compressor, the damper is maintained in the open state in the next refrigerating compartment cooling operation, And the damper is continuously opened and closed at regular intervals during the refrigerating chamber cooling operation to delay the end of the cooling operation of the refrigerating chamber.

A control method for a refrigerator according to an embodiment of the present invention includes a damper for selectively supplying cool air of the evaporator to a refrigerating compartment partitioned by a barrier and an evaporator and a blowing fan in a freezing chamber and a control unit for controlling driving of the compressor Wherein the damper is continuously opened and closed at a predetermined cycle during a cooling operation of the refrigerating chamber to control the end point of the cooling operation of the refrigerating chamber.

The control method of a refrigerator according to an embodiment of the present invention is characterized in that when the cooling operation of the refrigerating chamber is performed a plurality of times while the cooling operation of the freezing chamber is continued, Wherein the cooling operation is performed once in a state where the cooling operation of the freezing chamber is continued by delaying the ending point of the cooling operation of the refrigerating chamber by adjusting the cycle.

A control method for a refrigerator according to an embodiment of the present invention is a method for controlling a refrigerator in which a compressor and a blowing fan are driven by a control unit and a damper for supplying cool air to a refrigerating chamber at a set temperature is opened and closed to cool the refrigerating chamber and the freezing chamber to a set temperature, Wherein when the cooling operation of the freezing compartment is completed, an additional cooling operation of the refrigerating compartment is confirmed before the freezing compartment reaches the set temperature, and when no further cooling operation of the refrigerating compartment occurs, When the additional cooling operation of the refrigerating chamber occurs, the damper repeatedly opens and closes continuously at a set cycle in a subsequent cooling operation of the refrigerating chamber to further delay the end of the cooling operation of the refrigerating chamber .

The control method of the refrigerator and the refrigerator according to the embodiment of the present invention has the following effects.

First, during the cooling operation of the refrigerating chamber, the opening and closing of the damper is repeated periodically, thereby delaying the end of the cooling operation of the refrigerating chamber. Accordingly, it is possible to perform the operation of cooling the refrigerating compartment one time during the operation period of the compressor, to prevent the inflow of the high temperature air into the refrigerating compartment into the freezing compartment, thereby shortening the operation time of the freezing compartment and the driving time of the compressor, There is an effect.

Second, when the cooling operation of the refrigerating chamber is further generated before the cooling operation of the freezing chamber is completed, the damper is opened or closed periodically during the cooling operation of the next refrigerating chamber, or the opening and closing cycle of the damper is adjusted The time point at which the cooling operation of the refrigerating compartment is terminated can be delayed.

Therefore, when the cooling additional operation of the refrigerating compartment does not occur, the refrigerating compartment can be cooled at a high speed to improve the cooling performance, and even if the additional cooling operation of the refrigerating compartment occurs, The cooling operation period of the compressor can be shortened, and the driving time of the compressor can be shortened to reduce power consumption.

1 is a schematic view illustrating a refrigerator according to an embodiment of the present invention.
2 is a block diagram showing a control signal flow of the refrigerator.
FIG. 3 is a graph showing changes in the operating state of the refrigerator over time.
4 is a flowchart sequentially showing the operation of the refrigerator.
FIG. 5 is a graph illustrating the internal temperature and power consumption of the refrigerator according to the embodiment of the present invention.
FIG. 6 is a graph showing the internal temperature and the power consumption of the refrigerator according to the conventional art.
FIG. 7 is a graph showing changes in the operating state of the refrigerator according to another embodiment of the present invention with time.
8 is a flowchart sequentially showing the operation of the refrigerator.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. However, it should be understood that the present invention is not limited to the embodiment shown in the drawings, and that other embodiments falling within the spirit and scope of the present invention may be easily devised by adding, .

In other words, the embodiment of the present invention is described as an example of a side-by-side type refrigerator in which a refrigerator compartment and a freezer compartment are arranged side by side for convenience of explanation and understanding. However, It is noted that the present invention is applicable to all types of refrigerator.

1 is a schematic view illustrating a refrigerator according to an embodiment of the present invention. 2 is a block diagram showing a control signal flow of the refrigerator.

As shown in the drawing, the refrigerator 1 according to the embodiment of the present invention may be formed by a cabinet 10 for forming a storage space therein and a door 20 for opening and closing the storage space .

The storage space inside the cabinet 10 is divided into left and right sides by the barrier 11 to form the freezing compartment 12 and the refrigerating compartment 13, respectively. The door 20 includes a freezing compartment door 21 and a refrigerating compartment door 22 so that a pair can be rotatably mounted on both sides of the cabinet 10. The freezer compartment door 21 and the refrigerator compartment door 22 may be configured to independently open and close the freezer compartment 12 and the refrigerating compartment 13.

A plurality of drawers and shelves for storing food may be provided in the freezing room 12 and the refrigerating room 13. A basket for storing food may be provided on the rear surface of the freezer compartment door 21 and the refrigerator compartment door 22. The freezer compartment door 21 may be provided with an ice maker for making ice and a dispenser for taking out the ice made by the ice maker. A home bar may be provided in the refrigerator compartment door 22.

Meanwhile, although not shown in detail, a machine room partitioned from the storage space may be formed at the lower end of the cabinet 10. Inside the machine room, a compressor (31) constituting a refrigeration cycle and a condenser, a compressor (31) and a fan for cooling the condenser may be provided.

An evaporator 121 may be disposed at the rear of the freezer compartment 12 and a blowing fan 122 may be installed above the evaporator 121 to cool the freezer compartment 12 ) Or forcedly flow toward the refrigerating chamber (13). The evaporator 121 and the blowing fan 122 may be shielded by a grill pan forming a rear wall of the freezing chamber 12.

The grill pan may have a plurality of cool air discharge openings 124 and may discharge the cool air generated by the evaporator 121 toward the freezing chamber 12. The discharge port 124 is provided on the upper part of the freezing chamber 12 and the cool air blown by the rotation of the blowing fan 122 is moved downward of the freezing chamber 12, The freezing chamber 12 can be cooled evenly.

The barrier 11 is divided into the freezing chamber 12 and the freezing chamber 13 so that the freezing chamber 12 is provided with a freezing chamber 13 , And from the freezing chamber (13) to the freezing chamber (12).

In detail, a damper 40 is provided on the upper portion of the barrier 11 so that the cool air generated by the evaporator 121 can be supplied to the refrigerating chamber 13 through the barrier 11 through the damper 40 . ≪ / RTI > A return duct 112 is provided at a lower portion of the barrier 11 so that the air in the refrigerating chamber 13 flows into the freezing chamber 12.

The freezing room temperature sensor 123 and the refrigerating room temperature sensor 133 are provided in the freezing room 12 and the refrigerating room 13 to sense the temperatures of the freezing room 12 and the refrigerating room 13, respectively. The control unit 30 controls the driving of the compressor 31 and the damper 40 based on the temperature sensed by the refrigerator compartment temperature sensor 133 and the freezer compartment temperature sensor 123, And the refrigerator compartment 13 can be cooled to maintain the set temperature.

That is, when the temperature inside the freezing chamber 12 is not satisfied, the cooling air of the evaporator 121 is supplied into the freezing chamber 12 by driving the blowing fan 122, . At this time, the damper (40) is closed and the cool air of the evaporator (121) flows only into the freezing chamber (12) to cool the freezing chamber (12).

When the temperature inside the refrigerating chamber 13 is not satisfied, the damper 40 is opened and the cool air of the evaporator 121 passes through the damper 40 as well as the freezing chamber 12, 13). The refrigerating chamber 13 can be cooled by the cold air supplied into the refrigerating chamber 13 and the air inside the refrigerating chamber 13 can be recovered to the freezing chamber 12 through the return duct 112 have.

The damper 40 can selectively supply cold air from the freezing compartment 12 to the refrigerating compartment 13 through the various structures and is controlled by the controller 30 so that the refrigerating compartment 13 can maintain the set temperature .

That is, the damper 40 is opened when the internal temperature of the refrigerating chamber 13 becomes a predetermined temperature or more so that the refrigerating chamber 13 can be cooled. When the internal temperature of the refrigerating chamber 13 is lower than the set temperature So that the refrigerating chamber 13 can maintain the set temperature range.

Hereinafter, operation of the refrigerator according to the embodiment of the present invention will be described with reference to the drawings.

FIG. 3 is a graph showing changes in the operating state of the refrigerator over time. 4 is a flowchart sequentially showing the operation of the refrigerator.

The refrigerator compartment temperature sensor 133 and the freezer compartment temperature sensor 123 provided in the refrigerating compartment 13 and the freezer compartment 12 measure the temperature in the compartment, And the damper 40 are controlled so that the temperature in the hearth can be maintained within the set temperature range.

In detail, by driving the compressor (31) and the blowing fan (122), cooling of the refrigerating chamber (13) and the freezing chamber (12) is started. The refrigerating chamber 13 can be supplied with the cool air generated by the evaporator 121 toward the refrigerating chamber 13 according to the opening and closing of the damper 40 so that the refrigerating chamber 13 can be cooled to a predetermined temperature .

When the temperature of the refrigerating compartment 13 detected by the refrigerating compartment temperature sensor 133 is equal to or higher than the upper limit temperature T3, the damper 40 is opened for cooling the refrigerating compartment 13. [ The cool air of the evaporator 121 can be introduced into the refrigerating chamber 13 by opening the damper 40.

The cooling air of the evaporator 121 can be introduced into the refrigerating chamber 13 through the damper 40 and cooled inside the refrigerating chamber 13 by driving the blowing fan 122. [ The air that has been cooled in the refrigerating chamber 13 can be introduced into the freezing chamber 12 through the return duct 112 and then sucked into the evaporator 121 to be cooled.

In the cooling operation of the refrigerating compartment 13, the damper 40 is opened and closed repeatedly on and off periodically, and when the temperature inside the refrigerating compartment 13 sensed by the refrigerating compartment temperature sensor 133 is lower than the lower limit temperature Is repeatedly opened and closed until reaching the fourth time point T4.

Therefore, the time of the entire cooling operation of the refrigerating chamber 13 can be adjusted according to the opening / closing cycle of the damper 40, and the time when the cooling operation of the refrigerating chamber 13 is finished can be adjusted.

The cooling operation of the refrigerating chamber 13 can be terminated relatively later than the state in which the damper 40 is continuously opened through the periodic on and off of the damper 40. [ That is, the cooling operation of the refrigerating chamber 13 can be terminated at a point of time similar to the ending point of the cooling operation of the freezing chamber 12. As a result, the freezing chamber 12, The cooling operation of the heat exchanger 13 is performed once and completed.

Meanwhile, when the damper 40 is closed while the temperature of the refrigerating chamber 13 reaches the lower limit temperature T3, the temperature of the refrigerating chamber 13 rises and the cooling operation of the refrigerating chamber 13 becomes too high. The temperature of the refrigerating chamber 13 may rise to the upper limit temperature T4 again in a state where the compressor 31 continues to be driven.

The refrigerating compartment temperature sensor 133 senses the temperature of the refrigerating compartment 13 and the temperature of the refrigerating compartment 13 reaches the upper limit temperature T4 before the temperature of the freezing compartment 12 reaches the lower limit temperature T1 The damper 40 is opened again to further perform the cooling operation of the refrigerating chamber 13. [

On the other hand, when the compressor 31 and the blowing fan 122 start to be driven, the cooling operation of the freezing chamber 12 is started. That is, the cooling operation of the freezing chamber 12 and the cooling operation of the refrigerating chamber 13 can be started at the same time when the compressor 31 and the blowing fan 122 start driving.

When the temperature of the freezing chamber 12 is detected by the freezing room temperature sensor 123 to reach the upper limit temperature T2, the controller 30 determines that the temperature of the freezing chamber 12 is unsatisfactory, The compressor 31 is driven. The refrigeration cycle is activated by the operation of the compressor 31 and cold air is generated in the evaporator 121. The generated cold air is supplied into the freezing chamber 12 by the blowing fan 122 to cool the freezing chamber 12.

The freezing chamber 12 can be continuously cooled by the operation of the compressor 31. When it is detected that the temperature of the freezing chamber 12 reaches the lower limit temperature T1 by the freezing room temperature sensor 123 , It is determined that the temperature of the freezing chamber 12 is satisfied and the compressor 31 is stopped. In this way, the operation of the compressor 31 is determined according to the temperature of the freezing chamber 12, and the freezing chamber 12 can be maintained below the set temperature.

The cooling operation of the refrigerating chamber 13 can be terminated earlier than the operation of the freezing chamber 12 because the temperature of the freezing chamber 12 is cooled to a temperature significantly lower than the temperature of the refrigerating chamber 13 . When the cooling operation of the refrigerating chamber 13 is terminated too early, the temperature of the refrigerating chamber 13 may rise to the upper limit temperature T4 during the cooling operation of the freezing chamber 12, The refrigeration operation of the refrigerator compartment 13 may further occur.

The relatively high temperature air inside the refrigerating chamber 13 can not be introduced into the freezing chamber 12 when the refrigerating chamber 13 is further cooled, Which increases the driving time of the compressor 31 as a whole and increases the power consumption, which is undesirable.

Therefore, in order to prevent the refrigerating chamber 13 from being further cooled, the controller 30 controls the damper 40 to cool the refrigerator compartment 13 immediately before the refrigerator compartment 13 is cooled, Thereby controlling the opening / closing cycle.

That is, by increasing the time during which the damper 40 is closed, the cooling operation of the refrigerating chamber 13 is performed for a relatively longer period of time, and the cooling operation of the refrigerating chamber 13 is similar to the cooling operation of the freezing chamber 12 So that it can be terminated in time.

The cooling operation of the refrigerating compartment 13 is prevented from being further generated before the completion of the cooling operation of the freezing compartment 12 by delaying the end of the cooling operation of the refrigerating compartment 13. As a result, the refrigerator compartment 13 and the freezer compartment 12 operate in the same manner once each time the compressor 31 is operated.

When the freezing chamber 12 reaches the upper limit temperature and the cooling operation of the refrigerating chamber 13 is not further generated, the damper 40 may be opened and closed at the same period, Thereby maintaining the same opening / closing cycle.

FIG. 5 is a graph illustrating the internal temperature and power consumption of the refrigerator according to the embodiment of the present invention. 6 is a graph showing the internal temperature and the power consumption of the refrigerator according to the conventional art.

5, when the damper 40 is periodically opened and closed during the cooling operation of the refrigerating chamber 13, the ending point of the cooling operation of the refrigerating chamber 13 is delayed The cooling operation of the refrigerating compartment 13 is performed only once in the section in which the compressor 31 is driven and the operating time of the compressor 31 is further increased And the power consumption is reduced.

However, as shown in FIG. 6, in the case of the conventional refrigerator, the damper is continuously opened without being periodically opened and closed during the cooling operation of the cold-storage refrigerating chamber, and the cooling operation of the refrigerating chamber is significantly faster than the ending time of the cooling operation of the freezing chamber In this case, additional operation of the refrigerating compartment occurs due to a rise in the temperature of the refrigerating compartment in a section where the compressor is driven.

Further, by the additional operation of the refrigerating chamber, the high temperature air in the refrigerating chamber flows into the freezing chamber to raise the temperature of the evaporator. As a result, the time for completing the cooling operation of the freezing chamber is delayed and the operation time of the compressor becomes longer, Is increased.

Meanwhile, the control method of the refrigerator and the refrigerator according to the embodiment of the present invention may be various other embodiments than the above-described embodiment.

According to another embodiment of the present invention, the controller controls the damper to be continuously opened or closed periodically during the cooling operation of the refrigerating chamber according to the cooling operation state of the immediately preceding refrigerating chamber.

In the other embodiment of the present invention, only the operation method of the damper is different, but the structure thereof is the same as that of the above-described embodiment, so a detailed description of its structure will be omitted.

FIG. 7 is a graph showing changes in the operating state of the refrigerator according to another embodiment of the present invention with time. 8 is a flowchart sequentially showing the operation of the refrigerator.

The refrigerator compartment temperature sensor 133 and the freezer compartment temperature sensor 123 provided in the refrigerating compartment 13 and the freezer compartment 12 measure the temperature in the compartment, The controller 30 controls the driving of the compressor 31 and the damper 40 so that the temperature in the hearth can be kept below the set temperature.

More specifically, when the compressor 31 and the blowing fan 122 are driven under the control of the controller 30, cooling of the refrigerating compartment 13 and the freezing compartment 12 is started. At this time, the refrigerating chamber 13 is supplied with the cool air generated by the evaporator 121 to the refrigerating chamber 13 according to the operation of the damper 40, so that the refrigerating chamber 13 can be cooled to a predetermined temperature.

When the temperature of the refrigerating compartment 13 exceeds the upper limit temperature T3 by the refrigerating compartment temperature sensor 133, the damper 40 is opened to cool the refrigerating compartment 13, And cool air is introduced into the refrigerating chamber (13).

The cooling air of the evaporator 121 flows into the inside of the refrigerating chamber 13 through the damper 40 and the inside of the refrigerating chamber 13 is cooled by the driving of the blowing fan 122. The air that has been cooled in the refrigerating chamber 13 can be introduced into the freezing chamber 12 through the return duct 112 and then sucked into the evaporator 121 to be cooled.

The damper 40 is kept open until the temperature of the refrigerating compartment 13 reaches the lower limit temperature T3 and the refrigerating compartment 13 is opened at a high speed through the continuous supply of cold air to the refrigerating compartment 13 Can be cooled.

On the other hand, when the temperature of the refrigerating compartment 13 reaches the lower limit temperature T3 and the cooling operation of the refrigerating compartment 13 is terminated, The temperature of the refrigerating chamber 13 may rise again to the upper limit temperature T4 before the operation is terminated.

The refrigerating compartment temperature sensor 133 senses the temperature of the refrigerating compartment 13 and detects the temperature of the refrigerating compartment 13 before the temperature of the freezing compartment 12 reaches the lower limit temperature T1, ) Again reaches the upper limit temperature (T4), the damper (40) is opened again to further perform the cooling operation of the refrigerating chamber (13).

On the other hand, the freezing chamber 12 starts the cooling operation at the start of the driving of the compressor 31 and the blowing fan 122. That is, the cooling operation of the freezing chamber 12 and the cooling operation of the refrigerating chamber 13 can be started at the same time.

When the temperature of the freezing compartment 12 is detected by the freezing compartment temperature sensor 123 to reach the upper limit temperature T2, it is determined that the temperature of the freezing compartment 12 is unsatisfactory and the compressor 31 is driven do. The refrigeration cycle is activated by the operation of the compressor 31 and cold air is generated in the evaporator 121. The generated cold air is supplied into the freezing chamber 12 by the blowing fan 122 to cool the freezing chamber 12.

The freezing chamber 12 is continuously cooled by the operation of the compressor 31. When it is detected that the temperature of the freezing chamber 12 reaches the lower limit temperature T1 by the freezing room temperature sensor 123, It is determined that the temperature of the freezing chamber 12 is satisfied and the compressor 31 is stopped. The operation of the compressor 31 is determined according to the temperature of the freezing chamber 12, so that the freezing chamber 12 can be maintained at a predetermined temperature or lower.

Since the temperature of the freezing chamber 12 is cooled to a temperature significantly lower than the temperature of the refrigerating chamber 13, the cooling operation of the refrigerating chamber 13 is terminated earlier than the operation of the freezing chamber 12 . When the cooling operation of the refrigerating chamber 13 is terminated too early, the temperature of the refrigerating chamber 13 may rise to the upper limit temperature T4 during the cooling operation of the freezing chamber 12, The refrigeration operation of the refrigerator compartment 13 may further occur.

The additional operation of cooling operation of the refrigerating chamber (13) causes the relatively high temperature air in the refrigerating chamber (13) to flow into the freezing chamber (12). Therefore, the cooling operation time of the freezing chamber 12 is increased and the overall driving time of the compressor 31 is increased, which increases the power consumption, which is not preferable.

Therefore, when the cooling operation of the refrigerating chamber 13 is further generated in the immediately preceding cooling operation of the refrigerating chamber 13, the controller 30 can control the damper 40 to be periodically opened and closed . That is, during the cooling operation of the refrigerating chamber 13, the damper 40 periodically opens and closes while being repeatedly turned on and off to delay the time point at which the cooling operation of the refrigerating chamber 13 is completed.

That is, when it is determined that the cooling operation of the immediately preceding refrigerating compartment 13 has been additionally performed, until the temperature inside the refrigerating compartment 13 detected by the refrigerating compartment temperature sensor 133 reaches the lower limit temperature T4, The damper 40 is opened and closed repeatedly. The cooling operation of the refrigerating chamber 13 can be terminated relatively later than the state in which the damper 40 is continuously opened through the periodic on and off of the damper 40. [ The cooling operation of the refrigerating compartment 13 may be terminated at a point of time similar to the end of the cooling operation of the freezing compartment 12.

The cooling operation of the refrigerating compartment 13 is prevented from being further generated before the completion of the cooling operation of the freezing compartment 12 by delaying the end of the cooling operation of the refrigerating compartment 13. As a result, the refrigerator compartment 13 and the freezer compartment 12 are operated in the same manner once each time the compressor 31 is operated.

When the freezing chamber 12 has reached the lower limit temperature T1 and the previous cooling operation of the refrigerating chamber 13 is not further generated, the damper 40 is opened during the following cooling operation of the refrigerating chamber 13, It may be maintained.

Claims (8)

A cabinet having a storage space formed therein and having a compressor;
A barrier for partitioning the storage space into a refrigerating chamber and a freezing chamber;
An evaporator provided in the freezing chamber;
A blowing fan provided in the freezing chamber for blowing cool air generated by the evaporator;
A damper installed in the barrier for opening and closing the flow passage so that cool air of the evaporator can flow into the refrigerating chamber;
A return duct provided in the barrier for allowing air in the refrigerating compartment to flow into the freezing compartment; And
And a control unit for controlling the operation of the compressor, the blowing fan, and the damper so that the refrigerating chamber and the freezing chamber maintain the set temperature, thereby cooling the refrigerating chamber and the freezing chamber,
Wherein the controller controls the damper to continuously open and close at predetermined intervals during a cooling operation of the refrigerating chamber,
The refrigerator compartment cooling operation is started when the compressor is in operation and before the cooling operation of the freezer compartment is completed,
When the additional refrigeration compartment cooling operation is started before the freezing compartment cooling operation is terminated, the controller controls the damper so that the end time of the refrigerating compartment cooling operation, which is progressed while the compressor is stopped after the operation is stopped, Closing period of the refrigerator.
delete The method according to claim 1,
Wherein the refrigerating chamber cooling operation is performed once in a driving period of the compressor.
delete A cabinet having a storage space formed with a storage space and equipped with a compressor;
A barrier for partitioning the storage space into a refrigerating chamber and a freezing chamber;
An evaporator provided in the freezing chamber;
A blowing fan provided in the freezing chamber for blowing cool air generated by the evaporator;
A damper installed in the barrier for opening and closing the flow passage so that cool air of the evaporator can flow into the refrigerating chamber;
A return duct provided in the barrier for allowing air in the refrigerating compartment to flow into the freezing compartment; And
And a control unit for controlling the operation of the compressor, the blowing fan, and the damper so that the refrigerating chamber and the freezing chamber maintain the set temperature, thereby cooling the refrigerating chamber and the freezing chamber,
Wherein,
When the cooling operation of the refrigerating chamber immediately before is performed once in the driving section of the compressor, the damper is controlled to maintain the opened state in the following refrigerating chamber cooling operation,
The damper is continuously opened and closed at regular intervals during a cooling operation of the refrigerating compartment after the compressor is stopped and the operation is restarted after the compressor has been operated twice or more in the driving period of the compressor, Wherein the control unit is configured to delay the end of the cooling operation of the refrigerating compartment.
A damper for selectively supplying cool air of the evaporator to a refrigerating compartment partitioned by a barrier, and a control unit for controlling the operation of the refrigerator in which the refrigerator compartment and the freezing compartment are cooled by a control unit for controlling the driving of the compressor, In the method,
Wherein the damper is continuously opened and closed at a predetermined cycle during a cooling operation of the refrigerating chamber so that the ending point of the cooling operation of the refrigerating chamber is controlled,
Wherein when the cooling operation of the refrigerating chamber is performed a plurality of times in a state where the cooling operation of the freezing chamber is continued,
In the cooling operation of the refrigerating compartment after the operation of the compressor is stopped after the operation is resumed, the cooling operation of the freezing compartment is continued by controlling the opening / closing cycle of the damper to delay the ending time of the cooling operation of the refrigerating compartment Wherein the cooling operation of the refrigerator is performed once.
delete The compressor and the blowing fan are driven by the control unit and the damper for supplying the cool air to the refrigerating chamber at the set temperature is opened and closed to cool the refrigerating chamber and the freezing chamber to the set temperature,
Wherein in the state where the cooling operation of the freezing chamber is completed, an additional cooling operation of the refrigerating chamber is confirmed before the freezing chamber reaches the set temperature,
When the additional cooling operation of the refrigerating chamber is not performed, the damper maintains the opened state in the following cooling operation of the refrigerating chamber,
In the cooling operation of the refrigerating chamber after the operation of the compressor is stopped and the operation of the compressor is continued after the additional cooling operation of the refrigerating chamber occurs, the damper repeatedly opens and closes continuously at the set cycle to complete the cooling operation of the refrigerating chamber And the time point is further delayed.

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