KR102010382B1 - Refrigerator and Control method of the same - Google Patents

Abstract

The refrigerator of the present invention includes a main body having a freezing compartment and a refrigerating compartment; A refrigeration cycle apparatus installed in the main body and including a compressor, a condenser, an expansion mechanism, and an evaporator through which refrigerant passes sequentially, and a refrigerant passing through the evaporator to cool air; A blowing fan for blowing air cooled by an evaporator to the freezing compartment and the refrigerating compartment; A refrigeration chamber damper that regulates the air blown from the evaporator to the fridge, and if the freezer temperature is unsatisfactory and the fridge temperature is unsatisfactory, the compressor is driven, the fridge damper is open and the blower fan is operated in simultaneous operation with a first voltage applied. If the freezer compartment temperature is unsatisfactory and the refrigerator compartment temperature is satisfied during the simultaneous operation, the compressor is driven, the refrigerator damper is closed, and the blower fan is operated in a freezer compartment alone operation in which a second voltage lower than the first voltage is applied. There is an advantage that can minimize the power consumption when operating the freezer alone.

Description

Refrigerator and its operation method {Refrigerator and Control method of the same}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator and a method of operating the same, and more particularly, to a refrigerator and a method of operating the same, in which a blower fan blows air to a freezing compartment and a refrigerating compartment.

In general, a refrigerator is a device that cools a storage compartment such as a refrigerating compartment and a freezing compartment by using a refrigeration cycle device including a compressor, a condenser, an expansion mechanism, and an evaporator.

The refrigerator may include a main body having a freezer compartment and a refrigerating compartment, a freezer compartment door connected to the main body to open and close the freezer compartment, and a refrigerating compartment door connected to the main body to open and close the refrigerating compartment. The refrigerator may be provided with a blowing fan for blowing air to the evaporator. The air cooled by the evaporator when the blowing fan is driven may be supplied to the freezing compartment and the refrigerating compartment or may be supplied to the freezing compartment. The refrigerator may include a refrigerator compartment damper to allow cold air to be supplied to or blocked from the refrigerator compartment. In the refrigerator, when the refrigerator compartment damper is opened, a part of the air cooled by the evaporator may flow into the refrigerating compartment, and the rest of the air cooled by the evaporator may flow into the freezer compartment.

The blowing fan may be driven together when the compressor is driven and may be stopped together when the compressor is stopped. That is, the blowing fan may be driven together when the compressor is driven so that the air in the freezer compartment or the air in the refrigerating compartment may exchange heat with the low temperature refrigerant passing through the evaporator, and may be stopped when the compressor is driven.

KR 10-0400470 B1 (2003.10.01)

The refrigerator according to the related art drives the freezer compartment fan at the first rotational speed when both the freezer compartment and the refrigerating compartment are required for cooling operation, and when the damper is closed and only the freezer compartment is required for the cooling operation, the freezer fan is faster than the first rotational speed. Since driving at the rotational speed, there is a big problem in the power consumption required for driving the freezer compartment fan when the freezer compartment alone.

Refrigerator according to the present invention for solving the above problems is a freezer compartment and the refrigerator compartment formed body; A refrigeration cycle device installed in the main body and including a compressor, a condenser, an expansion mechanism, and an evaporator through which refrigerant passes sequentially, and a refrigerant passing through the evaporator to cool air; A blowing fan for blowing air cooled by the evaporator to the freezing compartment and the refrigerating compartment; And a refrigerator compartment damper that regulates air blown from the evaporator to the refrigerator compartment, wherein if the freezer compartment temperature is unsatisfactory and the refrigerator compartment temperature is unsatisfactory, the compressor is driven, the refrigerator compartment damper is open, and a first voltage is applied to the blower fan. If the freezer compartment temperature is unsatisfactory and the refrigerating compartment temperature is satisfactory during the simultaneous operation, the compressor is driven, the refrigerating chamber damper is closed, and a second voltage lower than the first voltage is applied to the blower fan. The freezer is operated by a single operation.

 When the freezer compartment temperature is satisfied during the freezer compartment alone, the compressor may be stopped and the voltage applied to the blower fan may be cut off.

When the freezer compartment temperature is satisfied during the freezer compartment alone operation, the compressor is stopped, and the blower fan may be operated by an additional blower fan that is continuously driven for a set time.

 When the set time elapses, the voltage applied to the blowing fan may be cut off.

In the blowing fan additional operation, the second voltage may be applied to the blowing fan.

During the additional operation of the blower fan, a third voltage lower than the second voltage may be applied to the blower fan.

In the operation method of the refrigerator according to the present invention, if the freezer compartment temperature is unsatisfactory and the refrigerating compartment temperature is unsatisfactory, the compressor is driven, the refrigerator compartment damper is opened to regulate the supply of the refrigerator compartment of the air cooled by the evaporator, and the air cooled by the evaporator Applying a first voltage to a blowing fan for blowing air into the freezing compartment and the refrigerating compartment; If the freezer compartment temperature is unsatisfactory and the refrigerator compartment temperature is satisfied during the step, the compressor is continuously driven, the refrigerator compartment damper is closed, and a second voltage lower than the first voltage is applied to the blower fan.

 If the freezer compartment temperature is satisfied while the second voltage is applied to the blower fan, the compressor may be stopped, and the voltage applied to the blower fan may be blocked.

If the freezer compartment temperature is satisfied while the second voltage is applied to the blower fan, the compressor may be stopped, and the blower fan may be further driven for a predetermined time.

After the set time has elapsed, the voltage applied to the blowing fan may be cut off.

The second voltage may be applied to the blowing fan during the set time.

A third voltage lower than the second voltage may be applied to the blower fan during the set time.

The present invention has the advantage of minimizing the power consumption consumed when operating the freezer compartment alone.

In addition, since the blower fan is continuously driven after the freezing chamber is operated alone, the freezing chamber may be further cooled while the compressor is stopped, and there is an advantage of delaying the simultaneous operation of the freezing chamber and the refrigerating chamber thereafter.

1 is a front view showing the inside of the main body of an embodiment of the refrigerator according to the present invention;
Figure 2 is a plan sectional view when the freezer compartment and the refrigerating compartment of the refrigerator according to the embodiment of the present invention are cooled together,
3 is a cross-sectional plan view when the freezer compartment of the refrigerator 1 embodiment of the present invention is cooled alone;
4 is a view showing a refrigeration cycle apparatus of an embodiment of a refrigerator according to the present invention.
5 is a control block diagram of an embodiment of a refrigerator according to the present invention;
6 is a view showing the operation of each of the compressor, blower fan, refrigerator compartment damper, condensation fan according to the freezer compartment temperature and the refrigerator compartment temperature of one embodiment of the refrigerator according to the present invention,
7 is a flowchart illustrating one embodiment of a method for controlling a refrigerator according to the present invention;
FIG. 8 is a view illustrating operations of a compressor, a blowing fan, a refrigerator compartment damper, and a condenser fan according to a freezer compartment temperature and a refrigerator compartment temperature according to another embodiment of the refrigerator.
9 is a flowchart illustrating another embodiment of a control method of a refrigerator according to the present invention;
FIG. 10 is a view illustrating operations of a compressor, a blowing fan, a refrigerator compartment damper, and a condensation fan according to a freezer compartment temperature and a refrigerator compartment temperature according to another embodiment of the refrigerator.
11 is a flowchart illustrating another embodiment of a method for controlling a refrigerator according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a front view showing the inside of the main body of the refrigerator according to an embodiment of the present invention, Figure 2 is a cross-sectional view when the freezer compartment and the refrigerating compartment of the refrigerator according to the embodiment of the present invention is cooled together, Figure 3 is according to the present invention 4 is a cross-sectional view when the freezer compartment of one embodiment is cooled alone, and FIG. 4 is a view illustrating a refrigeration cycle apparatus of one embodiment of the refrigerator according to the present invention.

The refrigerator includes a main body 2, a refrigeration cycle device 4, a blowing fan 6, and a refrigerator compartment damper 8. The refrigeration cycle apparatus 4 is installed in the main body 2, and includes a compressor 40, a condenser 44, an expansion mechanism 46, and an evaporator 49 through which refrigerant passes sequentially, and includes an evaporator 49. The refrigerant passing through may cool the air.

The main body 2 is provided with a freezing chamber F and a refrigerating chamber R. The main body 2 may include a freezer compartment door 21 that opens and closes the freezer compartment F and a refrigerator compartment door 22 that opens and closes the refrigerator compartment R. The main body 2 may include a barrier 24 partitioning the freezing compartment F and the refrigerating compartment R. The main body 2 includes an outer casing 26 forming an exterior of a refrigerator, a freezer inner casing 28 disposed inside the outer casing 26 and having an open front surface and having a freezer compartment F formed therein, and an outer casing. (26) The refrigerator may include a refrigerator compartment inner casing 30 disposed therein and having a refrigerator compartment R formed therein. The main body 2 may be formed with a machine room (not shown) in which the compressor 40 or the like may be installed. The main body 2 may be provided with a cooling chamber C in which an evaporator 49 is installed and cooled as air passes. The cooling chamber (C) may be formed in communication with at least one of the freezing chamber (F) and the refrigerating chamber (R). The cooling chamber C may be formed inside one of the freezer compartment inner casing 28 and the refrigerator compartment inner casing 30, and may be between the freezer compartment inner casing 28 and the outer case 26 or the refrigerator compartment inner casing 30. And the outer case 26 can be formed. The main body 2 may be formed together with the freezing compartment F and the cooling chamber C in the freezer compartment inner casing 28, and the freezer compartment inner casing 28 rear plate and the cooling chamber ( The discharge panel 32 forming C) can be arranged. In the discharge panel 32, a freezer compartment cold air discharge passage 33 through which air cooled by the evaporator 49 is discharged to the freezer compartment F may be formed. In the discharge panel 32, a freezing chamber cold air recovery passage 34 through which air in the freezing chamber F is sucked into the cooling chamber C may be formed. In the barrier 24, a refrigerating chamber cold air discharge passage 35 through which air in the cooling chamber C or the freezing chamber F is discharged to the refrigerating chamber R may be formed. In the barrier 24, a refrigerating chamber cold air recovery passage 36 through which air in the refrigerating chamber R is sucked into the cooling chamber C or the freezing chamber F may be formed.

In the refrigeration cycle device 4, the compressor 40, the condenser 44, the expansion mechanism 46, and the evaporator 49 may be connected to the refrigerant passage. The refrigerant passage may be formed by a refrigerant tube through which the refrigerant passes.

The compressor 40 may suck and compress the refrigerant evaporated from the evaporator 49 and discharge the compressed refrigerant. The compressor 40 may be connected to the evaporator 49 and the compressor suction passage 41. The compressor 40 may be connected to the condenser 44 and the compressor discharge passage 42. The refrigerant evaporated in the evaporator 49 may pass through the compressor suction passage 41 and be sucked into the compressor 40, and the refrigerant compressed in the compressor 40 may pass through the compressor discharge passage 42 to the condenser 44. Can be guided. The compressor 40 may be installed in a machine room formed in the main body 2.

The condenser 44 may condense the refrigerant compressed by the compressor 40. The condenser 44 may be installed in the machine room formed in the main body 2 or may be installed to be exposed to the outside of the main body 2. The refrigerator may include a condensation fan 50 for blowing air to the condenser 44. The condensation fan 50 may be installed in a machine room formed in the main body 2, and may suck air from the outside of the refrigerator into the machine room and blow the air into the condenser 44. The refrigerant passing through the condenser 44 may exchange heat with the air blown by the condensation fan 50. The condensation fan 50 may be driven together with the compressor 40 and may be stopped together with the compressor 40. The condensation fan 50 may include a motor and a blower rotated by the motor, and may include a centrifugal fan or an axial flow fan.

The condenser 44 may be connected to the condenser outlet passage 45 through which the refrigerant passing through the condenser 44 is guided. The refrigerant condensed in the condenser 44 may flow toward the expansion mechanism 46 through the condenser outlet passage 45. The refrigeration cycle apparatus 4 may include a hot line 52 through which the refrigerant flowing out of the condenser 44 passes. The hot line 52 may be installed to evaporate and remove the dew that the refrigerant passing through the condenser 44 forms in the refrigerator. Hot line 52 may be disposed after condenser 44 in the refrigerant flow direction. The hot line 52 may be formed by a refrigerant tube installed at a portion of the main body 2 that contacts the door. The hot line 52 may be installed inside the main body 2, and may radiate heat through the outer casing 26. The refrigerant passing through the condenser 44 may be radiated and condensed while passing through the hot line 52, and a portion where the body 2 and the freezer compartment door 21 are in contact, or the body 2 and the refrigerator compartment door 22 may be Dew on the contacting site may be removed by heat transferred from the hot line 52. In the refrigerator, a part of the condenser outlet flow path 45 may be the hot line 52.

The expansion mechanism 46 may expand the refrigerant condensed in the condenser 44. The expansion mechanism 46 may include a capillary tube or may include an electronic expansion valve such as EEV or LEV. The expansion mechanism 46 may comprise a plurality of capillary tubes 47, 48, two capillary tubes of the first capillary tube 47 and the second capillary tube 48. (47) (48). The first capillary tube 47 and the second capillary tube 48 may have different diameters. The first capillary tube 47 and the second capillary tube 48 may have different lengths. The refrigerator may further include a refrigerant control valve 54 capable of controlling the refrigerant flowing toward the expansion mechanism 46 in the refrigerant flow direction. The refrigerant control valve 54 may be connected to the condenser outlet flow passage 45, may be connected to the first capillary tube 47 and the first capillary tube connecting passage 55, and the second capillary tube 48 may be connected to the second capillary tube connecting passage 56. The refrigerant guided to the refrigerant control valve 54 is guided to the first capillary tube 47 through the first capillary tube connecting passage 55 and expanded, or the second capillary tube connecting passage 56 is connected to the refrigerant. It can be guided to the second capillary tube 48 through the expansion. The first capillary tube 47 and the second capillary tube 48 may be connected to the evaporator 49 by a lamination passage. The lamination passage may include a first capillary tube outlet passage 57 connected to the first capillary tube 47 and a second capillary tube outlet passage 58 connected to the first capillary tube 48. The first capillary tube outlet passage 57 and the second capillary tube outlet passage 58 may be formed by an evaporator inlet passage 59 connected to the evaporator 49. The refrigerant expanded in the expansion mechanism 46 may be guided to the evaporator 49 through the evaporator inlet passage 59. Expansion mechanism 46 may be installed to be located in the machine room or located in the cooling chamber (C).

The evaporator 49 may evaporate the refrigerant expanded in the expansion mechanism 46 by heat exchange with the interior of the chamber. The evaporator 49 may be connected to the compressor 40 and the compressor suction passage 41. Evaporator 49 may be installed to be located in the cooling chamber (C). The evaporator 49 is installed in the cooling chamber C together with the blowing fan 6 to suck and cool the air in the freezing chamber F, and to suck and cool the air in the refrigerating chamber F, It is possible to suck and cool the air of the freezing chamber F and the air of the refrigerating chamber R together. The evaporator 49 may be installed in a smaller number than the storage chambers F and R to be cooled, and a single number may cool both the freezing chamber F and the refrigerating chamber R.

The blowing fan 6 blows air cooled by the evaporator 49 to the freezing chamber F and the refrigerating chamber R. The blowing fan 6 may function as an evaporating fan (or a freezer compartment fan) which blows air to the evaporator 49 to heat-exchange the refrigerant passing through the evaporator 49 with the air. The blowing fan 6 may be installed in the cooling chamber C together with the evaporator 49. The blowing fan 6 may include a motor as a driving source and a fan rotated by the motor. The blowing fan 6 may be composed of a centrifugal fan, and may be composed of a sirocco fan or a turbo fan. The blower fan 6 can also be configured as an axial fan. Blowing fan (6) may be configured as a variable speed motor motor. The blowing fan 6 may have a variable rotation speed, and when driven at a high wind volume when rotated at the first rotation speed, may be driven at a low wind volume when rotated at a second rotation speed lower than the first rotation speed. . The blowing fan 6 may rotate the fan at a first rotational speed during the simultaneous operation of the freezer compartment F and the refrigerating compartment R, and a second rotation at which the fan is lower than the first rotational speed when the freezer compartment F is operated alone. Can be rotated at speed. The blowing fan 6 may vary the rotation speed of the fan according to the voltage change. The blowing fan 6 may change the air volume by the applied voltage, the higher the voltage may be higher air volume, the lower the voltage may be lower air volume. The blowing fan 6 may be applied with a high voltage during simultaneous cooling of the freezing chamber F and the refrigerating chamber R to flow a high volume of air. When the blower fan 6 cools the freezing chamber F alone, a low voltage may be applied to flow air of low wind volume.

The refrigerator compartment damper 8 controls the air blown from the evaporator 49 to the refrigerator compartment R. The refrigerator compartment damper 8 may be installed in the barrier 24 or disposed inside the refrigerator compartment R. When the refrigerating compartment damper 8 is installed in the barrier 24, the refrigerating compartment damper 8 may be installed in the refrigerating compartment cold air discharge passage 35, and may control the cold air passing through the refrigerating compartment cold air discharge passage 35. When the refrigerating compartment damper 8 is installed in the refrigerating compartment R, the refrigerating compartment damper 8 may be installed at an upper portion of the refrigerating compartment R, and may communicate with the refrigerating compartment cold air discharge passage 33. The refrigerating chamber damper 8 may control the cold air flowing through the refrigerating chamber cold air discharge passage 33 in the cooling chamber C. When opening the refrigerating compartment damper 8, cold air may be introduced into the refrigerating compartment R, and the refrigerating compartment damper 8 may not be introduced into the refrigerating compartment R.

5 is a control block diagram of one embodiment of a refrigerator according to the present invention, Figure 6 is a compressor, blower fan, refrigerator compartment damper, the operation of each of the condenser fan according to the freezer compartment temperature and the refrigerating chamber temperature of one embodiment of the refrigerator according to the invention is shown It is also.

 The refrigerator may include a controller 90 that controls the blower fan 6, the refrigerator compartment damper 8, and the compressor 40 according to a user input, a freezer compartment temperature TF, and a refrigerator compartment temperature TR. The controller 90 may control the condensation fan 50 together with one of the compressor 40 and the blowing fan 6.

The refrigerator may include an input unit 92 for receiving a user's command, a freezer compartment temperature sensor 94 for detecting a temperature of the freezer compartment F, and a refrigerator compartment temperature sensor 96 for detecting a temperature of the refrigerator compartment R. have.

 The input unit 92 may receive a power input, a desired temperature of a freezer compartment, a desired temperature of a refrigerator compartment, and the like, and may output a signal according to the input command to the controller 90.

The freezer compartment temperature sensor 94 may be installed in the freezer compartment F to output a signal according to the detected freezer compartment temperature to the controller 90.

The refrigerating compartment temperature sensor 96 may be installed in the refrigerating compartment R to output a signal according to the detected refrigerating compartment temperature to the controller 90.

The refrigerator may supply the air cooled by the evaporator 49 (hereinafter referred to as cold air) to at least one of the freezing chamber T and the refrigerating chamber R. Cold air is supplied to both the freezing chamber F and the refrigerating chamber R. It is possible to have a simultaneous operation mode, and the freezer compartment independent operation mode in which the cold air is supplied only to the freezer compartment (F) of the freezer compartment (F) and the refrigerating compartment (R), the cold air supply is cut off to the refrigerating compartment (R).

The refrigerator may be first operated in the simultaneous operation mode and then switched to the freezer compartment alone operation mode during the simultaneous operation mode. The refrigerator may be operated in the freezer freezing operation mode and switched to the standby mode in the middle of the freezer freezing operation mode. The refrigerator may be switched to the simultaneous operation mode in the middle of the standby mode.

The freezer compartment temperature sensor 94 may detect a temperature of the freezer compartment F and output a signal according to the temperature detected by the controller 90, and the controller 90 may output a signal according to the signal output from the freezer compartment temperature sensor 94. It may be determined whether the freezer temperature TF is satisfied or dissatisfied.

The controller 90 may determine satisfaction or dissatisfaction of the freezer compartment temperature TF based on the desired freezer compartment temperature. Here, when the user inputs a freezer desired temperature to the input unit 92, the freezer desired temperature may be a reference for determining whether the freezer desired temperature entered by the user is satisfied or dissatisfied with the freezer temperature (TF). If the desired freezer temperature is not inputted in 92), the initially set freezer temperature may be a criterion for determining the satisfaction or dissatisfaction of the freezer temperature (TF).

If the temperature detected by the freezer compartment temperature sensor 94 is lower than the freezer desired temperature, the controller 90 may determine that the freezer compartment temperature TF is satisfied, and the temperature detected by the freezer compartment temperature sensor 94 is the freezer compartment desired temperature. If higher, it can be determined that the freezer temperature TF is unsatisfactory.

The control unit 90 can determine the satisfaction and dissatisfaction of the freezer compartment temperature TF based on the upper limit temperature of the desired freezer compartment temperature and the lower limit temperature of the freezer compartment desired temperature. Here, the upper limit temperature of the desired temperature of the freezer compartment and the lower limit temperature of the desired temperature of the freezer compartment are the error temperatures of the desired temperature of the freezer compartment. For example, if the desired temperature of the freezer compartment is -17 ° C, the upper limit temperature of the desired temperature of the freezer compartment is -16.5 ° C or -16 ° C. The temperature may be a predetermined value higher than the freezer desired temperature, and the lower limit temperature of the freezer desired temperature may be a temperature lower than the desired freezer temperature such as -17.5 ° C or -18 ° C. If the temperature detected by the freezer compartment temperature sensor 94 is lower than the lower limit temperature of the desired freezer compartment temperature, the controller 90 may determine that the freezer compartment temperature TF is satisfied, and the temperature detected by the freezer compartment sensor 94 is If the freezer temperature is higher than the upper limit of the desired temperature, the freezer temperature TF may be determined to be unsatisfactory.

 The refrigerating compartment temperature sensor 96 may detect a temperature of the refrigerating compartment R to output a signal according to the temperature detected by the control unit 90, and the control unit 90 according to the signal output from the refrigerating compartment temperature sensor 96. It can be determined whether the refrigerator compartment temperature TR is satisfied or dissatisfied.

The control unit 90 can determine the satisfaction and dissatisfaction of the refrigerating compartment temperature TR based on the desired refrigerating compartment temperature. Here, the refrigerator compartment desired temperature may be a criterion for determining the satisfaction or dissatisfaction of the refrigerator compartment temperature (TR) when the user inputs the refrigerator compartment desired temperature to the input unit 92, and the user input unit ( If the desired temperature of the refrigerating compartment is not inputted in 92), the initially set refrigerating compartment setting temperature may be a criterion for determining satisfaction or dissatisfaction of the refrigerating compartment temperature TR.

The controller 90 may determine that the refrigerator compartment temperature TR is satisfactory when the temperature detected by the refrigerator compartment temperature sensor 96 is lower than the refrigerator compartment desired temperature, and the temperature detected by the refrigerator compartment temperature sensor 96 is the refrigerator compartment desired temperature. If it is higher, it can be judged that the refrigerator compartment temperature TR is unsatisfactory.

The control unit 90 can determine the satisfaction and dissatisfaction of the refrigerating compartment temperature TR based on the upper limit temperature of the refrigerating compartment desired temperature and the lower limit temperature of the refrigerating compartment desired temperature. Here, the upper limit temperature of the refrigerating chamber desired temperature and the lower limit temperature of the refrigerating chamber desired temperature are error temperatures of the refrigerating chamber desired temperature. For example, when the refrigerating chamber desired temperature is 4 ° C, the upper limit temperature of the refrigerating chamber desired temperature is 4.5 ° C or 5 ° C, It may be a temperature higher than the desired temperature of the refrigerator compartment, and the lower limit temperature of the desired temperature of the refrigerator compartment may be a temperature lower than the desired temperature of the refrigerator compartment, such as 3.5 ° C or 3 ° C. The controller 90 may determine that the refrigerator compartment temperature TR is satisfactory when the temperature sensed by the refrigerator compartment temperature sensor 96 is lower than the lower limit temperature of the refrigerator compartment desired temperature, and the temperature detected by the refrigerator compartment temperature sensor 96 is determined. If the temperature is higher than the upper limit of the desired temperature of the refrigerating compartment, it may be determined that the refrigerating compartment temperature TR is not satisfied.

The refrigerator is unsatisfied when the freezer temperature (TF) is unsatisfactory, when the freezer temperature (TR) is satisfied when the freezer temperature (TF) is unsatisfactory, and the freezer temperature (TF) is satisfied. There may be a case where the refrigerator compartment temperature TR is unsatisfactory, and the freezer compartment temperature TF is satisfactory and the refrigerator compartment temperature TR is satisfied.

The refrigerator can be operated in simultaneous operation (A) if the freezer temperature (TF) is unsatisfactory and the refrigerator compartment temperature (TR) is unsatisfactory, during the simultaneous operation the compressor 30 is driven and the refrigerator compartment damper 8 is open and the blowing fan As (6), a first voltage is applied. In the simultaneous operation, the condensation fan 50 may be driven by applying a voltage.

When the compressor 40 is driven, the compressor 40 may suck and compress a refrigerant, and then discharge the refrigerant. The refrigerant compressed in the compressor 40 is condensed in the condenser 44, and the refrigerant condensed in the condenser 44. Is expanded by the expansion mechanism 46, the refrigerant expanded by the expansion mechanism 46 can be evaporated in the evaporator (49). The blowing fan 6 is applied with a first voltage. The blowing fan 6 may flow the air of the freezer compartment and the air of the refrigerating compartment to the evaporator 49, and the air flowed into the evaporator 49 may be cooled by heat exchange with the evaporator 49. The cold air may be dispersed and flowed into the freezing compartment F and the refrigerating compartment R, and the freezing compartment F and the refrigerating compartment R may be cooled together. In the refrigerator, the refrigerator compartment temperature TR may be lowered below the lower limit temperature of the refrigerator compartment desired temperature or the refrigerator compartment desired temperature, and the refrigerator compartment temperature TR may be determined to be satisfactory.

If the freezer compartment temperature is unsatisfactory and the refrigerating compartment temperature is satisfactory during the simultaneous operation A, the simultaneous operation A is completed, and the refrigerator may be operated in the freezer compartment single operation B.

 The freezer operation alone (B) may be carried out after the simultaneous operation (A) followed by the simultaneous operation (A). In the freezer compartment operation B, the compressor 40 is driven, the refrigerating compartment damper 8 is closed, and a second voltage lower than the first voltage may be applied to the blower fan 6.

 The compressor 40 which is driven during the simultaneous operation (A) may continue to be driven during the freezer compartment alone operation (B), and the refrigerant may continue to be operated by the compressor 40, the condenser 44, the expansion mechanism 46, and the evaporator ( 49) can be cycled. The refrigerator compartment damper 8 prevents the air cooled by the evaporator 49 from closing to the refrigerator compartment R any more. The refrigerator has a smaller air volume than the case where the freezer temperature TF is unsatisfactory and the refrigerator compartment temperature TR is unsatisfactory, and the refrigerator is supplied with a second voltage lower than the first voltage to the blower fan 6. Thereby the power consumption can be reduced. Here, the second voltage may be preferably 30 to 70% of the first voltage, and the minimum of the second voltage is preferably set to a voltage at which cold air can circulate between the freezer compartment F and the evaporator 49. In the freezer compartment independent operation B, cold air is not supplied to the refrigerating compartment R, but cold air is continuously supplied to the freezer compartment F, and the freezer compartment temperature TF continues to fall.

When the freezer compartment temperature TR is satisfied during the freezer compartment alone operation B, the compressor 40 may be stopped and the voltage applied to the blower fan 6 may be cut off. The refrigerator may cut off the voltage applied to the condensation fan 50 when the compressor 40 is turned off, and thus stop the condensation fan 50. When the freezer compartment temperature TR is satisfied during the freezer compartment alone operation B, the refrigerator may be in a standby state C that does not force cold air to the freezer compartment F any longer. When the compressor 40 is off, the refrigerant no longer circulates through the compressor 40, the condenser 44, the expansion mechanism 46, and the evaporator 49, and the cold air is no longer forcedly blown into the freezer compartment F.

The refrigerator may be unsatisfactory in the freezer compartment temperature TF and unsatisfactory in the refrigerator compartment temperature TR due to the load in the middle of the standby state C, in which case the simultaneous operation A may be resumed. The refrigerator may be repeated in the order of simultaneous operation (A), freezer operation alone (B), and standby state (C).

7 is a flowchart illustrating an embodiment of a control method of a refrigerator according to the present invention.

In the control method of the refrigerator according to the present embodiment, when the freezer compartment temperature TF is unsatisfactory and the refrigerator compartment temperature TR is unsatisfactory, the compressor 40 is driven and the refrigerator compartment supply of the air cooled by the evaporator 49 is adjusted. The refrigerator compartment damper 8 is opened, and the first voltage is applied to the blower fan 6 which blows air cooled by the evaporator 49 to the freezer compartment F and the refrigerator compartment R (ie, simultaneous cooling). Step). (S1) (S2) (S3)

When the compressor 40 is driven, the refrigerant circulates the compressor 40, the condenser 44, the expansion mechanism 46, and the evaporator 49, and the evaporator 49 may cool the air.

When the first voltage is applied to the blower fan 8, the blower fan 8 may flow air in the freezing chamber F and air in the refrigerating chamber R to the evaporator 49, and exchange heat with the evaporator 49. Air may be forced to the freezing chamber (F) and the refrigerating chamber (R). Some of the air cooled by the evaporator 49 may flow into the freezer compartment F to cool the freezing compartment F, and the remaining of the air cooled by the evaporator 49 may flow into the refrigerating chamber R to store the refrigerator compartment ( R) can be cooled.

The refrigerator may first reach a desired temperature of the freezer compartment R among the freezer compartment F and the refrigerator compartment R, and the freezer compartment temperature TF is still unsatisfactory during the simultaneous operation of the freezer compartment F and the refrigerator compartment R. The refrigerator compartment temperature TR may be satisfactory.

If the freezer compartment temperature TF is unsatisfactory and the refrigerating compartment temperature TR is satisfactory during the step of cooling the freezer compartment F and the refrigerating compartment C together as described above, the compressor 40 continues to be driven and the refrigerating compartment damper 8 Is closed, and the blowing fan 6 is applied with a second voltage lower than the first voltage (ie, freezing chamber alone cooling step). (S4) (S5)

When the compressor 40 is driven, the refrigerant may continue to circulate the compressor 40, the condenser 44, the expansion mechanism 46, and the evaporator 49, and when the refrigerator compartment damper 8 is closed, the refrigerator compartment damper ( 8) prevents the air cooled by the evaporator 49 from flowing into the refrigerating chamber (R). As the second voltage is applied, the blowing fan 6 may reduce the air volume more than when the first voltage is applied, and the air in the freezing compartment F may circulate between the evaporator 49 and the freezing compartment F, and the freezing compartment ( The temperature of F) continues to fall further.

If the freezer compartment temperature TF is satisfied during the step of cooling the freezer compartment F alone as described above, the compressor 40 is stopped and the voltage applied to the blower fan 6 is cut off. (S7) That is, if the freezer compartment temperature TF is satisfied while the second voltage is being applied, the blower fan 6 no longer applies the second voltage to the blower fan 6 and the blower fan 6 Is stopped.

The control method of the refrigerator according to the present embodiment is a standby step (S6) (S7), after the simultaneous operation step (S1) (S2) (S3) and freezer compartment operation step (S4) (S5) and the standby step (S6) ( S7) may be repeated sequentially.

FIG. 8 is a view illustrating operations of a compressor, a blowing fan, a refrigerator compartment damper, and a condenser fan according to a freezer compartment temperature and a refrigerator compartment temperature according to another embodiment of the refrigerator.

In the refrigerator of the present embodiment, if the freezer compartment temperature (TF) is satisfied during the freezer compartment operation (B), the compressor 40 is stopped, and the blower fan 6 is continuously driven for the set time T, and then the blower fan is stopped. It can be driven by operation C '. The set time T may be set longer as the size of the evaporator 49 is larger, and may be set shorter as the size of the evaporator 49 is smaller. The set time T may be set in proportion to the size of the evaporator 49. For example, when the set time T is set to 2 minutes, the refrigerator may continue to operate the blowing fan 6 for 2 minutes after the compressor 40 is stopped, and after the compressor 40 is turned off, When minutes pass, the blowing fan 6 may be stopped. The refrigerator may have a larger size of the evaporator 49 as the capacity of the refrigerator increases, and the set time may be set in proportion to the capacity of the refrigerator. The set time may be set in various ways in proportion to the capacity of the refrigerator such as 1 minute, 2 minutes, 3 minutes, 5 minutes, 10 minutes, and the like.

The refrigerator of the present embodiment may be in a standby state D in which cold air is no longer forcedly blown to the freezing compartment F after the additional blower fan C '. Since the refrigerator of the present embodiment has the same configuration and operation as the refrigerator of the exemplary embodiment of the present invention except for the additional operation of the cooling fan (C ′) and the standby state (D), detailed description thereof will be omitted.

In the refrigerator of the present embodiment, the same operation (A) and the freezer operation alone (B) may be sequentially performed as in the embodiment of the present invention, and an additional blower fan operation (C ′) is performed after the freezer operation alone (B). It may be a standby state (D) after the blowing fan additional operation (C ').

 If the freezer temperature TF is unsatisfactory and the refrigerator compartment temperature TR is unsatisfactory, the simultaneous operation A can be started, the compressor 40 is driven in the simultaneous operation A, and the refrigerator compartment damper 8 is open. A first voltage is applied to the blowing fan 6. In the simultaneous operation (A), a voltage may be applied to the condensation fan 50 to be driven. In the simultaneous operation A, cold air is supplied to the freezer compartment F and the refrigerating compartment R, and the freezer compartment temperature TF and the refrigerating compartment temperature TR may be lowered.

If the freezer compartment temperature TF is unsatisfactory and the refrigerating compartment temperature TR is satisfied in the middle of the simultaneous operation A, the simultaneous operation A is completed and the freezer compartment single operation B can be started. In the freezer compartment independent operation B, the compressor 40 is continuously driven, the refrigerator compartment damper 8 is closed, and a second voltage is applied to the blower fan 6. During the freezing chamber alone operation (B), the condensation fan 50 is continuously applied, so the condensation fan 50 may be driven together with the compressor. In the freezer compartment operation B, cold air is no longer supplied to the refrigerating compartment R, and cold air is supplied to the freezer compartment F so that the freezer compartment temperature TF is lowered.

If the freezer compartment temperature TF is satisfied in the middle of the freezer compartment operation B, an additional blower fan operation C 'may be started, and during the blower fan operation C', the compressor 40 is stopped and the refrigerator compartment damper (8) is closed, and a 2nd voltage is applied to the blowing fan 6. The voltage may not be applied to the condensation fan 50 during the additional blower fan operation C ′, and may be stopped together with the compressor 40. In the additional blower fan C ', the blower fan 6 is continuously driven to circulate air to the evaporator 49 and the freezer compartment F. The evaporator F continues after the compressor 40 is stopped. The cooling chamber F can be cooled. The refrigerant remaining in the evaporator (F) at the start of the blower fan additional operation (C ') can continue to heat exchange with the air for a predetermined time (T) even after the compressor 40 is turned off, and the cold power of the evaporator (F) is maximized. It may be delivered to the freezer compartment (F).

When the set time has elapsed after the additional blower fan operation C ′ is started, the refrigerator may be in a standby state D. In the standby state D, a second voltage is not applied to the blower fan 6. The blowing fan 6 is stopped.

In the refrigerator, after the freezing chamber alone operation B, the blower fan 6 is further operated for a predetermined time, the refrigerator may delay the resumption of the simultaneous operation A performed after the standby state D. FIG.

The refrigerator may be unsatisfactory in the freezer compartment temperature TF and unsatisfactory in the refrigerator compartment temperature TR due to the load in the middle of the standby state D, in which case the simultaneous operation A may be resumed. The refrigerator may be repeated in the order of simultaneous operation (A), freezer operation alone (B), additional blower fan operation (C ′), and standby state (D).

9 is a flowchart illustrating another embodiment of a control method of a refrigerator according to the present invention.

In the control method of the refrigerator of the present embodiment, if the freezer compartment temperature TF is satisfied during the step S4 of cooling the freezer compartment F alone (S5), the compressor 40 is stopped and the blower fan 6 is set. A step (ie, an additional blower fan operation step) that continues to be driven for a time T may be performed. (S6) (S7 ') The blower fan 6 has a set time T after the compressor 40 is stopped. While a second voltage may be applied. In the refrigerator, when the set time T elapses, a second voltage is not applied to the blowing fan 6, and a step (ie, a waiting step) of stopping the blowing fan 6 may be performed. (S8) (S9) Other configurations and operations are the same as or similar to the control method of the refrigerator in one embodiment of the present invention, and detailed description thereof will be omitted.

  The control method of the refrigerator according to the present embodiment is a standby operation (S8) (S9), after the simultaneous operation step (S1) (S2) (S3) and freezer compartment operation step (S4) (S5) and additional fan operation step ( S6) S7 'and the waiting steps S8 and S9 may be repeated sequentially.

FIG. 10 is a view illustrating operations of a compressor, a blowing fan, a refrigerator compartment damper, and a condensation fan according to a freezer compartment temperature and a refrigerator compartment temperature according to another embodiment of the refrigerator.

   In the refrigerator of the present embodiment, a lower voltage may be applied to the blower fan 6 when the blower fan is additionally operated (C ″) than the freezer compartment alone (B), and the freezer compartment is operated solely by the blower fan 6 when the blower is added. Since the configuration and operation except that a lower voltage is applied at (B) are the same as or similar to other embodiments of the present invention, a detailed description thereof will be omitted.

A third voltage lower than the second voltage may be applied to the blower fan 6 during the additional blower fan operation C ″.

When the freezer compartment temperature TF is unsatisfactory and the refrigerating compartment temperature TR is satisfied, a second voltage may be applied to the blower fan 6, and a freezer compartment temperature TF is applied while the second voltage is applied to the blower fan 6. ) Is satisfied, a third voltage lower than the second voltage may be applied to the blowing fan 6. When the third voltage is applied, the blowing fan 6 has a smaller air volume than when the second voltage is applied.

The refrigerator of this embodiment may be repeated in the order of simultaneous operation (A), freezer compartment independent operation (B), additional blower fan operation (C "), and standby state (D), as in another embodiment of the present invention. Only the air volume during the additional operation (C ") may be smaller than the freezer alone operation (B).

 11 is a flowchart illustrating another embodiment of a method for controlling a refrigerator according to the present invention.

 In the control method of the refrigerator of the present embodiment, if the freezer compartment temperature TF is satisfied during the step S4 of cooling the freezer compartment F alone (S5), the compressor 40 is stopped and the blower fan 6 has a set time. The driving may be continued during (T), but a third voltage lower than the second voltage may be applied to the blower fan 6 during the set time T (ie, an additional blower fan operation step). S7 ″) The third voltage may be applied to the blower fan 6 during the set time T after the compressor 40 is stopped. When the set time T has elapsed, the refrigerator may add a third voltage to the blower fan 6. A step in which the blower fan 6 is stopped (that is, a standby step) may be performed without voltage being applied. (S8) (S9) Other configurations and operations are the same as those of the refrigerator control method of the embodiment of the present invention. Or similar, so detailed description thereof will be omitted.

The control method of the refrigerator according to the present embodiment is a standby operation (S8) (S9), after the simultaneous operation step (S1) (S2) (S3) and freezer compartment operation step (S4) (S5) and additional fan operation step ( S6) S7 " and the waiting steps S8 and S9 can be repeated sequentially.

2: body 4: refrigeration cycle unit
6: blower fan 8: cold room damper
40: compressor 44: condenser
46: expansion mechanism 49: evaporator
50: condensation fan 90: control unit
92 input unit 94 freezer temperature sensor
96: cold room temperature sensor

Claims (12)

A main body having a freezing chamber, a refrigerating chamber, and a cooling chamber, a discharge panel being provided between the freezing chamber and the cooling chamber, and a barrier provided between the freezing chamber, the cooling chamber, and the refrigerating chamber;
And a compressor, a condenser, an expansion mechanism, and an evaporator installed in the main body and sequentially passing the refrigerant, wherein the evaporator is disposed in the cooling chamber so that the refrigerant passing through the evaporator cools the air in the cooling chamber. Wow;
And a blowing fan for blowing air from the cooling chamber to the freezing compartment and the refrigerating compartment.
The discharge panel includes a freezing chamber cold air discharge passage discharged from the cooling chamber to the freezing chamber, and a freezing chamber cold air recovery passage through which air from the freezing chamber is sucked into the cooling chamber.
The barrier is provided with a refrigerating chamber cold air discharge passage through which air from the cooling chamber is discharged into the refrigerating chamber, and a refrigerating chamber cold air recovery passage through which air from the refrigerating chamber is sucked into the freezing chamber.
Further comprising a refrigerator compartment damper for opening and closing the refrigerator compartment cold air discharge passage,
If the freezer temperature is unsatisfactory and the freezer temperature is unsatisfactory, the compressor is driven and the refrigerating chamber damper is open and is operated in simultaneous operation with a first voltage applied to the blower fan,
If the freezer compartment temperature is unsatisfactory and the refrigerator compartment temperature is satisfactory during the simultaneous operation, the compressor continues to operate, the refrigerator compartment damper is closed, and a second voltage in the range of 30 to 70% of the first voltage is applied to the blower fan. And is operated by a freezer compartment alone operation in which the air volume is smaller than that when the first voltage is applied and at least the cold air is circulated in the freezer compartment and the evaporator,
If the freezer compartment temperature is satisfactory during the freezer compartment operation, and the freezer compartment temperature is satisfied, the compressor is stopped, and the blower fan is operated by an additional blower fan which is continuously driven for a set time.
And a third voltage lower than the second voltage is applied to the blower fan during the additional operation of the blower fan, thereby controlling the air volume to be smaller than that when the second voltage is applied. delete delete The method of claim 1,
When the set time has elapsed, the voltage applied to the blowing fan is cut off. delete delete A main body having a freezing chamber, a refrigerating chamber, and a cooling chamber, a discharge panel being provided between the freezing chamber and the cooling chamber, and a barrier provided between the freezing chamber, the cooling chamber, and the refrigerating chamber;
And a compressor, a condenser, an expansion mechanism, and an evaporator installed in the main body and sequentially passing the refrigerant, wherein the evaporator is disposed in the cooling chamber so that the refrigerant passing through the evaporator cools the air in the cooling chamber. Wow;
And a blowing fan for blowing air from the cooling chamber to the freezing compartment and the refrigerating compartment.
The discharge panel includes a freezing chamber cold air discharge passage discharged from the cooling chamber to the freezing chamber, and a freezing chamber cold air recovery passage through which air from the freezing chamber is sucked into the cooling chamber.
The barrier is provided with a refrigerating chamber cold air discharge passage through which air from the cooling chamber is discharged into the refrigerating chamber, and a refrigerating chamber cold air recovery passage through which air from the refrigerating chamber is sucked into the freezing chamber.
In the operating method of the refrigerator further comprising a refrigerator compartment damper for opening and closing the refrigerator compartment cold air discharge passage,
If the freezer compartment temperature is unsatisfactory and the refrigerator compartment temperature is unsatisfactory, the compressor is driven, the refrigerator compartment damper is opened, and a first voltage is applied to the blower fan;
If the freezer compartment temperature is unsatisfactory and the refrigerator compartment temperature is satisfactory during the step, the compressor continues to operate, the refrigerator compartment damper is closed, and a second voltage in the range of 30 to 70% of the first voltage is applied to the blower fan. Controlling the flow rate so that the air volume is smaller than that when the first voltage is applied and at least cold air is circulated in the freezer compartment and the evaporator;
And, when the freezer compartment temperature is satisfactory while the second voltage is applied to the blower fan and the freezer compartment temperature is satisfied, the compressor is stopped, and the blower fan is continuously driven for a set time.
And a third voltage lower than the second voltage is applied to the blower fan during the set time, so that the air volume is controlled to be smaller than that when the second voltage is applied. delete delete The method of claim 7, wherein
After the set time elapses, the voltage applied to the blowing fan is cut off operation method of the refrigerator. delete delete

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