KR100906844B1 - Refrigerator - Google Patents

Abstract

A refrigerator is provided to improve the temperature distribution in the storage compartments by selecting whether to open all the dampers controlling the cooling air supply to each storage compartment or alternately open and close the dampers. A refrigerator comprises a storing room(1) housing stock, a cooling cycle including a compressor(3), a first evaporator(6), and a first fan(9) circulating the cooling air by the condenser, a partition dividing the storage room into a first compartment(21) and a second compartment(22), a first damper(11) and a second damper(12) controlling the cooling air supply to the respective first and second compartments, and a control unit which controls the first and second dampers to open alternately.

Description

Refrigerator {REFRIGERATOR}

The present invention relates to a refrigerator, and more particularly, to a refrigerator control method characterized by improving distribution of internal temperature by controlling fan and damper when cold air is not supplied to a storage compartment.

1A is a view illustrating a conventional refrigerator. The refrigerator includes a first storage space 1, a first portion 21 of a second storage space, a second portion 22 of a second storage space, a compressor 3, a first evaporator 6, and a second evaporator ( 7), the first fan 9, the second fan 10, the first damper 11, the second damper 12, so that the first and second portions of the second storage space can be maintained at different temperatures The partition 13 is provided. Since the method for cooling the first storage space 1 is a well-known technique, a detailed description thereof will be omitted, and a condenser for condensing the refrigerant passing through the compressor in a cooling cycle with a high temperature and high pressure liquid refrigerant, and the refrigerant may be the first evaporator 6 or the second. The valve to the evaporator 7 is omitted.

When the second storage space is cooled, the compressor 3 is driven, and the compressed refrigerant passes through the condenser (not shown) and the valve (not shown) to reach the second evaporator (7), whereby heat exchange occurs and the second fan (10) This operation circulates cold air. When the first portion 21 of the second storage space needs to be cooled, the first damper 11 is opened to allow cold air to circulate in the first portion 21 of the second storage space. When the cooling of the second part 22 is required, the second damper 12 is opened to allow cool air to circulate in the first part 22 of the second storage space.

If cooling of the first storage space 1 is not necessary, no cold air is generated in the first evaporator 6. However, the first fan 9 may repeat driving and stopping at a predetermined period to evenly distribute the temperature distribution of the first storage space 1. If it is determined that cooling of the second storage space is not necessary, no cold air is generated in the second evaporator 7. However, in order to evenly distribute the temperature distribution of the first portion 21 and the second portion 22 of the second storage space, the driving and stopping may be repeated at regular intervals. Here, the first damper 11 and the second damper 12 are opened to allow air of the first part 21 and the second part 22 of the second storage space to circulate through the second fan 10. Should be

1B is a view illustrating opening and closing of a damper according to a cooling cycle in a control method of a conventional refrigerator. As illustrated in FIG. 1A, the first damper 11 and the second damper 12 should be understood to regulate the supply of cold air to the first portion 21 and the second portion 22 of the second storage space. .

When cold air can be generated in the second evaporator 7 (t2 to t3), the temperature of the first and second parts 21 and 22 in the second storage is lower than the respective reference temperatures. Opening and closing of the first damper 11 and the second damper 12 is different. Since such control is a prior art, a detailed description may be omitted. When the refrigerant passing through the compressor 3 is supplied to the first evaporator 6 (t0 to t1) or when the compressor 3 is not operated (t1 to t2), the first damper is alternately opened or the second The damper opens. At the same time, when the first damper and the second damper are opened, the first part 21 and the second part 22 are circulated due to the second fan 10. At this time, the first part 21 and the second part ( If the temperature difference of 22) is large, it affects the temperature of each other, which hinders food storage. Therefore, when the first damper is opened, the second damper is closed to prevent the air of the first part 21 and the second part 22 from circulating and affecting the first damper.

FIG. 1C is a view illustrating whether a cooling cycle is driven and whether a first fan and a second fan are driven in a conventional method of controlling a refrigerator.

When cooling of the first storage space is required (t4 to t5), the compressor 3 is driven, and the compressed refrigerant reaches the first evaporator 6 via a condenser (not shown) and a valve (not shown). When heat exchange occurs in the first evaporator, the first fan 9 is always driven, and even when the second evaporator 7 is not driven, the second fan 10 repeats the operation and stop at a predetermined cycle. When heat exchange occurs in the second evaporator 7 (t6 to t7), the second fan 10 is always driven and the first fan 9 is operated at a constant cycle even when the first evaporator 6 is not driven. Repeat the stop. When the cooling cycle does not operate because the cooling of the first storage space and the second storage space is not necessary (t5 to t6), the first fan 9 and the second fan 10 repeat operation and stop at a predetermined cycle. . It is preferable to allow the driving of the second fan 10 to start when the cooling of the second storage space is started t6.

In the case of controlling the first damper, the second damper, the first fan, and the second fan by using this method, one of the first part or the second part is a time period in which at least the second storage space does not require cooling. There is a problem that the temperature distribution in the air is not improved because the air does not circulate.

In order to solve this problem, the present invention drives or stops the fan at regular intervals when the cooling cycle is not driven, and alternately alternates between the first damper and the second damper of the storage compartment within a section where cooling of a specific storage space is not required. It is an object of the present invention to provide a refrigerator that evens the temperature distribution in the cabinet by opening and closing the same.

In addition, the present invention, if the cooling cycle is not driven, whether the front of the damper for regulating the supply of cold air to each of the cabinets depending on whether the temperature difference between each part of the cabinet is greater than the reference size, whether to open or close alternately It is an object of the present invention to provide a refrigerator which is determined to improve the temperature distribution in the storage.

In order to solve this problem, the present invention the refrigerator includes a first storage for storing the storage, a compressor, a condenser for condensing the refrigerant from the compressor, a first evaporator for cooling the first storage by evaporating the supplied refrigerant, the first evaporator A cooling cycle comprising a first fan for circulating cold air by the air, a partition wall dividing the first storage compartment into a first portion and a second portion, a first damper and a first damper for regulating the supply of cold air to the first and second portions, respectively; 2 dampers, when the cooling cycle is driven, the first damper and the second damper is opened or closed according to the temperature of the first portion and the second portion, respectively, and when the cooling cycle is not driven, the first damper according to a certain condition And a control unit which controls all of the second dampers to be opened or alternately opens and closes the first and second dampers so that the entire cooling is continuously performed in the storage space.

The controller may drive the first fan when cold air is generated in the first evaporator, and control the first fan to be repeatedly driven and stopped when cold air is not generated in the first evaporator.

In addition, when the cooling cycle is not driven, the controller compares the present temperature difference or the set temperature difference between the first part and the second part and the reference temperature difference so that the present temperature difference or the set temperature difference between the first part and the second part is equal to the reference temperature difference. In the case where the first damper and the second damper are small, and when the present temperature difference or the set temperature difference between the first part and the second part is larger than the reference temperature difference, controlling the first damper and the second damper to be opened and closed alternately. desirable.

In addition, the refrigerator includes a second storage tank for storing the contents, and the cooling cycle includes a second evaporator for evaporating the supplied refrigerant to cool the second storage chamber, a second fan for circulating cold air by the second evaporator, and a condenser. It is preferable to have a valve for selectively supplying the refrigerant of the first evaporator and the second evaporator.

The control unit may drive the first fan or the second fan corresponding to the first evaporator or the second evaporator into which the refrigerant is introduced, and the first fan or the second fan corresponding to the first evaporator or the second evaporator to which the refrigerant is not introduced. Refrigerator, characterized in that the two fans control to repeat the driving and stopping.

In addition, the control method of the refrigerator according to the present invention stores a storage compartment divided into first and second parts, a compressor, a condenser for condensing the refrigerant from the compressor, an evaporator for cooling the storage by evaporating the supplied refrigerant, A control method of a refrigerator having a cooling cycle including a fan for circulating cold air by an evaporator, and a first damper and a second damper for respectively controlling cold air supply to the first and second parts, and determining whether the cooling cycle is driven. In the first step, if the cooling cycle is running, the second step of opening or closing the first damper or the second damper according to the temperature of the first portion and the second portion, if the cooling cycle does not drive, Accordingly, a third step of opening the first damper and the second damper or alternately opening and closing the first damper and the second damper.

According to the present invention, when the cooling cycle is not driven, the fan is driven or stopped at a constant cycle, and the first damper and the second damper of the storage compartment are alternately opened and closed within a section in which a specific storage space is not required to be cooled. The effect is to even out the temperature distribution in the cabinet.

In addition, the present invention, if the cooling cycle is not driven, whether the front of the damper for regulating the supply of cold air to each of the cabinets depending on whether the temperature difference between each part of the cabinet is greater than the reference size, whether to open or close alternately Determination has the effect of improving the temperature distribution in the storage.

In the following, the invention is explained in detail based on the embodiments of the invention and the accompanying drawings.

2A is a view for explaining a refrigerator according to the present invention. The refrigerator includes a first storage space 1, a first portion 21 of a second storage space, a second portion 22 of a second storage space, a compressor 3, a first evaporator 6, and a second evaporator ( 7), the first fan 9, the second fan 10, the first damper 11, the second damper 12, so that the first and second portions of the second storage space can be maintained at different temperatures It is the same as FIG. 1A which has the partition 13 shown. The refrigerator includes a condenser (not shown) for condensing the refrigerant passing through the compressor into a liquid refrigerant having a high temperature and high pressure, and a valve (not shown) for selectively sending the refrigerant to the first evaporator 6 or the second evaporator 7.

When the second storage space is cooled, the compressor 3 is driven, and the compressed refrigerant passes through the condenser (not shown) and the valve (not shown) to reach the second evaporator (7), whereby heat exchange occurs, and the second fan (10) This operation circulates cold air. When the first portion 21 of the second storage space needs to be cooled, the first damper 11 is opened to allow cold air to circulate in the first portion 21 of the second storage space. When the cooling of the second part 22 is required, the second damper 12 is opened to allow cool air to circulate in the first part 22 of the second storage space.

If cooling of the first storage space 1 is not necessary, no cold air is generated in the first evaporator 6. However, the first fan 9 may repeat driving and stopping at a predetermined period to evenly distribute the temperature distribution of the first storage space 1. If it is determined that cooling of the second storage space is not necessary, no cold air is generated in the second evaporator 7. However, in order to evenly distribute the temperature distribution of the first portion 21 and the second portion 22 of the second storage space, the driving and stopping may be repeated at regular intervals. Here, the first damper 11 and the second damper 12 are respectively provided to circulate air in the first part 21 and the second part 22 of the second storage space through the second fan 10. It must be open.

In the refrigerator of FIG. 2A, the driving of the fan to the storage space where cold air is not supplied corresponds to the evaporator when cold air is not generated in the evaporator (that is, when the refrigerant is not immersed in the evaporator) as described in FIG. 1C. The fan repeatedly starts and stops at a regular cycle. In addition, the fan for the storage space is supplied with cold air is driven.

In the present invention, when cold air is not supplied to the second evaporator 7, the operation of the first damper 11 and the second damper 12 may be performed by the current temperature of the first part 21 and the second part 22, or It may vary depending on the set temperature. This will be explained in more detail later.

2B and 2C are views illustrating whether the first damper and the second damper are opened or closed according to the method of controlling the refrigerator according to the present invention. FIG. 2B is a diagram for explaining whether the first and second dampers are opened and closed when the first and second dampers are simultaneously circulated to affect each other. For example, if the difference between the present temperature of the first portion 21 and the present temperature of the second portion 22 is greater than a predetermined temperature (e.g., ΔT previously stored in the controller), In this case, the two parts 22 need to be prevented from affecting each other when they are circulated. In addition, when the difference between the temperature of the first portion 21 set by the controller and the temperature of the second portion 22 set by the controller is larger than a predetermined temperature (for example, ΔT previously stored in the controller), it is opened and closed as shown in FIG. 2B. You may.

Specifically, when cold air is supplied from the second evaporator 7 (t8 to t9), the second fan 10 is always driven, and the reference temperature of the first part in which the temperature of the first part 21 is stored in the control unit. If it is higher, it is determined that cooling is necessary, and the first damper 11 is opened. If the temperature of the first portion 21 is lower than the reference temperature of the first portion stored in the controller, it is determined that cooling is not necessary, and thus the first damper 11 is opened. (11) is closed. Similarly, if the temperature of the second portion 22 is higher than the reference temperature of the second portion stored in the controller, it is determined that cooling is necessary, and the second damper 12 is opened, and the temperature of the first portion 22 is stored in the controller. If it is lower than the reference temperature of the second portion, it is determined that cooling is not necessary and the second damper 12 is closed.

When the second evaporator 7 does not supply cold air (before t8 or after t9), the second fan repeats opening and closing at regular intervals as described in FIG. 1C. When the second fan is driven, the first damper 11 and the second damper 12 are alternately opened. If the first damper 11 is opened and circulated when the second fan 10 is driven, the second damper 12 is opened and circulated if the second fan 10 is driven thereafter. When the first damper 11 and the second damper 12 are alternately opened each time the second fan 10 is driven in this way, the first part 21 and the second evaporator 7 may not supply cold air. The internal temperature of the second portion can be made more uniform.

FIG. 2C is a diagram for explaining whether the first and second dampers are simultaneously opened and closed when the first and second dampers 21 and 22 are circulated to affect each other. For example, if the difference between the present temperature of the first portion 21 and the present temperature of the second portion 22 is smaller than a predetermined temperature (for example, ΔT previously stored in the controller), the first portion 21 and the first temperature may be reduced. Since the two parts 22 do not need to be prevented from affecting each other when circulating, in this case, they are opened and closed as shown in FIG. 2C. In addition, when the difference between the temperature of the first portion 21 set by the controller and the temperature of the second portion 22 set by the controller is larger than a predetermined temperature (for example, ΔT previously stored in the controller), it is opened and closed as shown in FIG. 2C. can do.

Specifically, when the cool air is supplied from the second evaporator 7 (t10 to t11) (that is, when the refrigerant is introduced into the second evaporator 7), the second fan 10 is always driven, If the temperature of the part 21 is higher than the reference temperature of the first part stored in the controller, it is determined that cooling is necessary, and the first damper 11 is opened, and the first part of which the temperature of the first part 21 is stored in the controller is determined. If it is lower than the reference temperature of, it is determined that cooling is not necessary and closes the first damper 11. Similarly, if the temperature of the second portion 22 is higher than the reference temperature of the second portion stored in the controller, it is determined that cooling is necessary, and the second damper 12 is opened, and the temperature of the first portion 22 is stored in the controller. If it is lower than the reference temperature of the second portion, it is determined that cooling is not necessary and the second damper 12 is closed.

When the second evaporator 7 does not supply cold air (before or after t10 or after t11) (ie, when no refrigerant is introduced into the second evaporator 7), the second fan may be constant as described in FIG. 1C. Repeat the opening and closing at intervals. When the second fan 10 is driven, the first damper 11 and the second damper 12 open at the same time. When the first damper and the second damper are open at the same time, it is determined that the first portion 21 and the second portion 22 may circulate and affect each other, and therefore, the first portion 21 and the second portion 22 are simultaneously applied. ) To make the distribution of the internal temperature more uniform.

3 is a block diagram of a refrigerator of the present invention. The refrigerator 30 may include a temperature sensor 31 measuring a temperature inside a refrigerator of the first storage space 1, the first portion 21 of the second storage space, the second portion 22 of the second storage space, and the user. An input unit 32 capable of receiving an input, a fan driver 33 for driving or stopping the first fan 9 and the second fan 10, a valve driver 34 for adjusting a valve (not shown), and a compressor ( And a damper controller 36 and a controller 40 for controlling the compressor drive unit 35, the first damper 11, and the second damper 12, which drive or stop 3).

The temperature sensor 31 measures the internal temperature of the first storage space 1, the first portion 21 of the second storage space and the second portion 22 of the second storage space, and controls the measured temperature information. Pass in 40. It is possible to measure the internal temperature of the first storage space 1, the first portion 21 of the second storage space, and the second portion 22 of the second storage space by the command of the controller 40. It is also possible to measure every hour.

The input unit 32 receives an input from a user and delivers it to the control unit 40. Specifically, whether the cooling cycle is driven, a desired temperature or a set temperature of each storage space may be input.

The fan driver 33 drives or stops the first fan 9 or the second fan 10 according to a driving command of the controller 40. Here, the first fan 9 supplies cold air to the first storage space 1, and the second fan 10 supplies cold air to the first portion 21 and the second portion 22 of the second storage space. do. Normally, the fan is operated when refrigerant is supplied to the evaporator corresponding to the fan, and when the refrigerant is not supplied to the evaporator corresponding to the fan, the fan stops or the drive and stop are repeated at regular intervals for high temperature distribution. Is described above.

The compressor driver 35 drives the compressor 3 and determines whether to drive and stop the signal according to a signal from the controller 40.

The damper controller 36 adjusts the opening and closing of the first damper 11 and the second damper 12 according to the signal of the controller 40. When cooling of the first part 21 or the second part 22 is necessary, the control part 40 sends a signal to the damper control part 36, and opens the 1st damper 11 or the 2nd damper 12, respectively, Even if cooling is not required, when the second fan 10 operates to uniform the temperature distribution in the refrigerator, the first damper may be used to uniformize the temperature distribution in the first portion 21 or the second portion 22. 11) or the second damper 12 may be opened respectively.

The controller 40 receives information about the temperature from the temperature sensor 31, and receives a user's driving command, a desired temperature, or a set temperature from the input unit 32. It is determined whether the fan is driven, whether the valve is driven, whether the compressor is driven, whether the damper is opened or closed through the information or the command so transmitted, and the control signal is transmitted to the fan driver 33, the valve driver 34, the compressor driver 35, It transmits to the damper control part 36.

Specifically, when the temperature sensor 31 receives information about the temperature of the first storage space 1, the first portion 21 of the second storage space, the second portion 22 of the second storage space, Compared with the reference temperatures of the first storage space 1, the first portion 21 of the second storage space, and the second portion 22 of the second storage space, the present temperature is lower than the reference temperature previously stored in the controller 40. If it is higher than the reference temperature, it is determined that cooling is not necessary. The pre-stored reference temperature may be determined at the time of production of the refrigerator or may be received from the input unit 32. If the control unit 40 determines that cooling is required, a signal for driving a fan corresponding to the space determined to be cooled is transmitted to the fan driving unit 33, and the refrigerant is supplied to the evaporator corresponding to the space determined to require cooling. The signal for controlling the valve to move is transmitted to the valve driver 34, and the signal for driving the compressor is transmitted to the compressor driver 35. If cooling of the first portion 21 or the second portion 22 of the second storage space is necessary, a signal is supplied to the damper controller 36 to open the first damper 11 or the second damper 12 corresponding thereto. send.

When the controller 40 determines that cooling of the second storage space including the first damper 11 and the second damper 12 is not necessary, the present temperature T1 and the second portion 22 of the first portion 21 are determined. Find the difference between T2's current temperature. When the temperature difference is greater than ΔT, which is a value previously stored in the controller 40, the controller 40 determines that the first damper and the second damper should not be opened at the same time. When the temperature difference is less than or equal to ΔT, the first damper and the second damper are determined. I think you can open both at the same time. T1 and T2 may be set temperatures of the first part 21 and the second part 22 transmitted from the input part 32 as well as the current temperature of the first part 21 and the second part 22. In this case, when it is determined that the first damper 11 and the second damper 12 should not be opened at the same time, the first damper 21 and the second damper 22 are alternately opened and closed, and the first damper and If it is determined that the second damper may be opened at the same time, a signal is applied to the damper controller 36 to open at the same time.

4 is a flowchart in which the controller 40 determines opening / closing control of the damper.

In step S11, the controller 40 determines whether cooling is required in the second storage space including the first damper 11 and the second damper 12. If cooling is required, go to step S12, and if cooling is not necessary, go to step S13. The determination of whether cooling is required is performed by comparing the present temperature with reference temperatures of the first part 21 of the second storage space and the second part 22 of the second storage space. Whether it is lower than the reference temperature has been described above.

In step S12, cooling is required, so that the present temperature of the first portion 21 of the second storage space and the second portion 22 of the second storage space is changed to the first portion 21 of the second storage space. The control unit 40 needs to cool the first part 21 according to whether the present temperature is lower than the reference temperature previously stored in the control unit 40 compared to the reference temperature of the second part 22 of the storage space. When it is determined that the first damper opening signal is transmitted to the damper control unit 36, and if it is determined that cooling of the second part 22 is necessary, the second damper opening signal is transmitted to the damper control unit 36.

In step S13, when it is determined that cooling is not necessary, the controller 40 determines that a difference between the present temperature or the set temperature T1 of the first portion and the present temperature or the set temperature T2 of the second portion is previously stored in the controller 40. It is determined whether the magnitude is greater than ΔT. If it is greater than ΔT, which is a value previously stored in the control unit 40, the control unit 40 determines that the first damper 11 and the second damper 12 should not be opened at the same time, and goes to step S15. In the same case, it is determined that the first damper 11 and the second damper 12 may be opened at the same time, and the flow advances to step S14.

In step S14, since it is determined that the first damper 11 and the second damper 12 may be opened at the same time, the first damper 11 and the second damper 12 are simultaneously opened.

In step S15, since it is determined that the first damper 11 and the second damper 12 should not be opened at the same time, the second fan 10 opens the first damper 11 and the second damper 12. When open and close alternately.

The above-described embodiment is applied to a cooling system in which two evaporators are connected in parallel, but in the case of one evaporator, a plurality of storage spaces are separated by a constant partition wall and applied to a system in which inflow and inflow rates of cold air are controlled by dampers. Can be.

The scope of the present invention is not limited by the following embodiments and drawings, and the scope of the present invention will be limited only by the contents described in the claims below.

1A is a view illustrating a conventional refrigerator.

1B is a view illustrating opening and closing of a damper according to a cooling cycle in a control method of a conventional refrigerator.

FIG. 1C is a view illustrating whether a cooling cycle is driven and whether a first fan and a second fan are driven in a conventional method of controlling a refrigerator.

2A is a view for explaining a refrigerator according to the present invention.

2B and 2C are views illustrating whether the first damper and the second damper are opened or closed according to the method of controlling the refrigerator according to the present invention.

3 is a block diagram of a refrigerator of the present invention.

4 is a flowchart in which the controller determines opening / closing control of the damper.

Claims (8)

Storage for storing things; A cooling cycle comprising a compressor, a condenser for condensing refrigerant from the compressor, a first evaporator for evaporating the supplied refrigerant to cool the storage compartment, and a first fan for circulating cold air by the first evaporator; A partition wall dividing the storage into a first portion and a second portion; A first damper and a second damper for respectively regulating the supply of cold air to the first and second parts; When the cooling cycle is driven, the first damper and the second damper are opened or closed according to the temperature of the first part and the second part, respectively, If the cooling cycle is not driven, according to a predetermined condition includes a control unit for controlling to open both the first damper and the second damper or to open and close the first damper and the second damper alternately, The control unit drives the first fan when cold air is generated in the first evaporator, and controls the first fan to repeat driving and stopping when no cold air is generated in the first evaporator. The method of claim 1, wherein when the cooling cycle is not driven, the controller compares the present temperature difference or the set temperature difference with the reference temperature difference between the first part and the second part to determine the present temperature difference or the set temperature difference between the first part and the second part. When the temperature difference is less than or equal to, the first damper and the second damper are both opened, and when the present temperature difference or the set temperature difference between the first part and the second part is larger than the reference temperature difference, the first damper and the second damper are alternately opened and closed. Refrigerator, characterized in that controlled to. Storage for storing things; A cooling cycle comprising a compressor, a condenser for condensing refrigerant from the compressor, a first evaporator for evaporating the supplied refrigerant to cool the storage compartment, and a first fan for circulating cold air by the first evaporator; A partition wall dividing the storage into a first portion and a second portion; A first damper and a second damper for respectively regulating the supply of cold air to the first and second parts; When the cooling cycle is driven, the first damper and the second damper are opened or closed according to the temperature of the first part and the second part, respectively, If the cooling cycle is not driven, according to a predetermined condition includes a control unit for controlling to open both the first damper and the second damper or to open and close the first damper and the second damper alternately, If the cooling cycle is not driven, the controller compares the present temperature difference or the set temperature difference and the reference temperature difference between the first part and the second part and the present temperature difference or the set temperature difference between the first part and the second part is less than or equal to the reference temperature difference. And opening both the first damper and the second damper, and controlling the first damper and the second damper to be opened and closed alternately when the present temperature difference or the set temperature difference between the first part and the second part is greater than the reference temperature difference. Refrigerator. The refrigerator of claim 1, wherein the refrigerator includes a second storage compartment for storing the contents, and the cooling cycle includes a second evaporator for evaporating the supplied refrigerant to cool the second storage compartment, and a second circulating cold air by the second evaporator. And a valve for selectively supplying the refrigerant from the fan and the condenser to the first evaporator and the second evaporator. The method of claim 4, wherein the controller is configured to drive the first fan or the second fan corresponding to the first evaporator or the second evaporator into which the refrigerant is introduced, and the first fan or the second evaporator corresponding to the first evaporator or the second evaporator into which the refrigerant is not introduced. A refrigerator, characterized in that the control of the first fan or the second fan to repeat the drive and stop. A storage compartment containing the first and second compartments, a compressor, a condenser condensing the refrigerant from the compressor, an evaporator for evaporating the supplied refrigerant, and a fan for circulating cold air by the evaporator. In the control method of the refrigerator comprising a cooling cycle, a first damper and a second damper for respectively controlling the supply of cold air to the first portion and the second portion, A first step of determining whether a cooling cycle is driven; A second step of opening or closing the first damper or the second damper, respectively, according to the temperatures of the first and second portions when the cooling cycle is being driven; A third step of opening the first damper and the second damper or alternately opening and closing the first damper and the second damper according to a predetermined condition when the cooling cycle is not driven; Including, And driving the fan when the cooling cycle is being driven, and controlling the fan to be repeatedly driven and stopped when the cooling cycle is not being driven. The method of claim 6, wherein the third step is to compare the present temperature difference or the set temperature difference and the reference temperature difference between the first portion and the second portion, and the present temperature difference or the set temperature difference between the first portion and the second portion is equal to the reference temperature difference. In the case where the first damper and the second damper are small, the first damper and the second damper are alternately opened and closed when the current temperature difference or the set temperature difference between the first and second storage compartments is larger than the reference temperature difference. Control method of the refrigerator. A storage compartment containing the first and second compartments, a compressor, a condenser condensing the refrigerant from the compressor, an evaporator for evaporating the supplied refrigerant, and a fan for circulating cold air by the evaporator. In the control method of the refrigerator comprising a cooling cycle, a first damper and a second damper for respectively controlling the supply of cold air to the first portion and the second portion, A first step of determining whether a cooling cycle is driven; A second step of opening or closing the first damper or the second damper, respectively, according to the temperatures of the first and second portions when the cooling cycle is being driven; A third step of opening the first damper and the second damper or alternately opening and closing the first damper and the second damper according to a predetermined condition when the cooling cycle is not driven; The third step includes comparing the present temperature difference or the set temperature difference and the reference temperature difference between the first part and the second part, and the current temperature difference or the set temperature difference between the first part and the second part is less than or equal to the reference temperature difference. And opening both the first damper and the second damper and alternately opening and closing the first damper and the second damper when the current temperature difference or the set temperature difference between the first and second storage compartments is greater than the reference temperature difference. How to control the refrigerator.

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