KR102099391B1 - Method for driving kimchi refrigerator - Google Patents

Abstract

The present invention is a step of determining whether the compressor is stopped in the process of selectively supplying refrigerant to each storage chamber through a refrigerant control valve to operate each storage chamber in either a refrigeration mode or a refrigeration mode. As a result of the determination, when the compressor is stopped, the storage chamber It characterized in that it comprises the step of checking whether the operation was not very much and the step of changing the position of the refrigerant control valve to the storage compartment side of the operation stop state when the compressor is stopped according to whether the operation is performed for each storage room.

Description

Control method of Kimchi refrigerator {METHOD FOR DRIVING KIMCHI REFRIGERATOR}

The present invention relates to a method for controlling the operation of a kimchi refrigerator, and more specifically, a kimchi refrigerator that reduces noise generated due to liquid refrigerant accumulated in an accumulator of a storage room in operation when the compressor is stopped in a kimchi refrigerator equipped with a plurality of storage rooms. It relates to a driving control method.

In general, the Kimchi refrigerator comprises a refrigeration cycle including a compressor, a condenser, an expansion device, and an evaporator, and matures the storage stored in the storage room through heat transfer between a heater provided separately around the evaporator and the storage room and the air inside the storage room, if necessary, or Store in low temperature.

The Kimchi refrigerator is a direct cooling method (hereinafter referred to as 'direct cooling') that cools the storage room using a pipe type evaporator arranged to surround the outer surface of the storage space according to the cooling method, and an evaporator equipped with a cooling fin on one side of the storage room. It is classified into an indirect cooling method (hereinafter referred to as 'intercooled') in which a fan is installed and a fan is driven to supply cold air to the storage room.

On the other hand, recently, a mixed type kimchi refrigerator that mixes and applies a direct-cooled storage room and a simple-cooled storage room has been proposed.

The mixed-type kimchi refrigerator is set to a refrigeration mode or a refrigeration mode depending on how each storage room is used, so that frozen food or refrigerated food can be stored.

The background technology of the present invention is disclosed in 'Compound Kimchi Refrigerator' of Korean Patent Publication No. 10-2010-0084715 (2010.07.28.).

In a conventional mixed-type kimchi refrigerator, when a storage room is operated through a compressor, liquid refrigerant accumulates in the accumulator of the storage room.

At this time, when the compressor is stopped, the liquid refrigerant accumulated in the accumulator is countercurrent by the compressor equalizing action, and noise is generated.

In addition, when the compressor is started, the liquid refrigerant accumulated in the evaporator is rapidly ejected to the accumulator to generate noise.

Moreover, during the operation of the compressor, there was a problem that noise was generated by excessively accumulated liquid refrigerant in the accumulator.

Therefore, there is a need to improve this.

The present invention was created to improve the above problems, and the object of the present invention is to prevent noise from being generated by the liquid refrigerant accumulated in the accumulator of the storage compartment in operation by changing the position of the refrigerant control valve when the compressor is stopped. To provide a method for controlling the operation of the Kimchi refrigerator.

Another object of the present invention is to provide a method for controlling the operation of a kimchi refrigerator, which prevents a liquid refrigerant accumulated in an accumulator that was being operated when the compressor is stopped from flowing back and generating noise.

Another object of the present invention is to provide a method for controlling the operation of a kimchi refrigerator that prevents noise from being generated because the liquid refrigerant accumulated in the evaporator is rapidly ejected by an accumulator when the compressor is started.

Another object of the present invention is to provide a method for controlling the operation of a kimchi refrigerator to prevent noise from being generated due to excessively accumulated liquid refrigerant in the accumulator during compressor operation.

An operation control method of a kimchi refrigerator according to an aspect of the present invention includes determining whether a compressor is stopped; As a result of the determination, if the compressor is stopped, checking whether the compressor is operating when the compressor is stopped for each storage room; And changing the position of the refrigerant control valve to the storage chamber side in the stopped state when the compressor is stopped depending on whether the storage chamber is operated.

In the present invention, the step of changing the position of the refrigerant control valve is characterized in that the position of the refrigerant control valve is changed to the storage chamber side of the operation stop state when the compressor is stopped.

In the present invention, the step of changing the position of the refrigerant control valve is characterized in that the position of the refrigerant control valve is changed to a storage room in which the operation mode is a refrigeration mode among the storage rooms in the stopped state.

In the present invention, the step of changing the position of the refrigerant control valve further comprises changing the position of the refrigerant control valve according to the capacity of the accumulator in the storage compartment.

In the present invention, the step of changing the position of the refrigerant control valve is characterized in that the position of the refrigerant control valve is changed to the storage chamber having the largest capacity of the accumulator among the storage chambers in the stopped state.

In the present invention, the storage room having the largest capacity of the accumulator is characterized in that any one of the storage rooms in which the operation mode is a refrigeration mode.

In the present invention, when the compressor is stopped, it characterized in that it further comprises the step of rotating the cooling fan of the storage chamber in operation when the compressor is stopped.

In the present invention, the rotation time of the cooling fan is characterized in that it increases or decreases according to any one or more of the amount of liquid refrigerant and the operation mode of the storage chamber that was operating when the compressor was stopped.

According to the present invention, when the compressor is stopped, the position of the refrigerant control valve is changed to prevent noise from being generated by the liquid refrigerant accumulated in the accumulator of the storage compartment operating in the refrigeration mode or the refrigeration mode.

The present invention controls the position of the refrigerant control valve when the compressor is stopped, thereby changing the compressor equalization position, thereby preventing backflow of the liquid refrigerant accumulated in the accumulator inside the storage compartment, and thereby preventing noise from being caused by backflow.

The present invention reduces the pressure of the liquid refrigerant ejected from the evaporator to the accumulator by controlling the position of the refrigerant control valve when the compressor is started, thereby reducing the ejection speed of the liquid refrigerant and thereby generated by the liquid refrigerant ejected from the evaporator to the accumulator. Reduces noise.

The present invention controls the position of the refrigerant control valve during the operation of the compressor to prevent noise from being generated by excessively accumulated liquid refrigerant in the accumulator.

The present invention evaporates the liquid refrigerant inside the evaporator by rotating the cooling fan inside the evaporator to evaporate the liquid refrigerant inside the evaporator and reduces the liquid refrigerant ejected from the evaporator to the accumulator to reduce the noise generated by the liquid refrigerant.

1 is a block diagram of a kimchi refrigerator according to an embodiment of the present invention.
2 is a view conceptually showing a storage structure of a kimchi refrigerator according to an embodiment of the present invention.
3 is a flow chart illustrating a method for controlling the operation of a kimchi refrigerator under refrigeration conditions according to an embodiment of the present invention.
4 is a view showing an operation mode for each storage room in a refrigerating condition according to an embodiment of the present invention.
5 is a flow chart showing a method for controlling the operation of a kimchi refrigerator in a single load condition according to an embodiment of the present invention.
6 is a view showing an operation mode for each storage room under a single load condition according to an embodiment of the present invention.
7 is a diagram illustrating an operation mode for each storage room under a single load condition according to an embodiment of the present invention.
8 is a flowchart illustrating a method for controlling operation of a kimchi refrigerator under standard conditions according to an embodiment of the present invention.
9 is a view showing an operation mode for each storage room under standard conditions according to an embodiment of the present invention.

Hereinafter, an operation control method of a kimchi refrigerator according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In this process, the thickness of the lines or the size of components shown in the drawings may be exaggerated for clarity and convenience. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or practice. Therefore, definitions of these terms should be made based on the contents throughout this specification.

1 is a block diagram of a kimchi refrigerator according to an embodiment of the present invention, and FIG. 2 is a diagram conceptually showing a storage structure of a kimchi refrigerator according to an embodiment of the present invention.

Referring to FIG. 1, the kimchi refrigerator according to an embodiment of the present invention includes a compressor 10 for compressing a gaseous refrigerant, a condenser 20 for condensing the refrigerant compressed in the compressor 10 into a liquid state, and a condenser ( Refrigerant control valve (30) for supplying the liquid refrigerant condensed in 20) to each storage chamber, installed on the inlet side of the first to fourth storage chambers (81 to 84) to lower the pressure of the liquid refrigerant to facilitate evaporation of the liquid refrigerant. It is installed in the first to fourth expansion devices 41 to 44 and the first to fourth storage rooms 81 to 84 to adjust the internal temperature of each of the first to fourth storage rooms 81 to 84 by evaporating the liquid refrigerant. It is installed in the first to fourth evaporators 51 to 54 and the first to fourth storage rooms 81 to 84, respectively, to collect the liquid refrigerant of the first to fourth evaporators 51 to 54 and supply them to the compressor 10 It is installed in the first to fourth accumulators 61 to 64 to be installed in the first to fourth storage rooms 81 to 84 to cool the liquid refrigerant inside the first to fourth evaporators 51 to 54. It includes first to fourth cooling fans 71 to 74 and a control unit 90 for overall control of the kimchi refrigerator.

In this embodiment, the first to fourth storage rooms 81 to 84 are provided in the kimchi refrigerator, and the first to fourth evaporators 51 to 54 and the first to fourth storage rooms 81 to 84 are provided in the kimchi refrigerator. The first accumulator to the fourth accumulator 61 to 64 and the first to fourth cooling fans 71 to 74 are respectively installed.

In addition, the refrigerant pipe at the outlet side of the first storage chamber 81 is combined with the refrigerant pipe at the outlet side of the third storage chamber 83, and the refrigerant pipe at the outlet side of the second storage chamber 82 is combined with the refrigerant pipe at the outlet side of the fourth storage chamber 84. And these refrigerant pipes are finally combined to be connected to the above-described compressor 10.

Moreover, as illustrated in FIG. 2, the first storage chamber 81 and the second storage chamber 82 are disposed above the kimchi refrigerator, and the third storage chamber 83 and the fourth storage chamber 84 are located below the kimchi refrigerator. Is placed.

For reference, in this embodiment, the kimchi refrigerator has first to fourth storage rooms 81 to 84, and the first storage room 81 and the second storage room 82 are disposed on the upper side of the kimchi refrigerator, and the third storage room It will be described as an example that the 83 and the fourth storage chamber 84 is disposed under the kimchi refrigerator. However, the technical scope of the present invention is not limited to this. That is, the kimchi refrigerator of the present invention includes a plurality of storage compartments, and these storage compartments are arranged in various shapes and structures inside the kimchi refrigerator, and will include all kimchi refrigerators that operate each storage compartment in a refrigerating mode or a freezing mode.

Meanwhile, the refrigerant control valve 30 may be a 5-way step valve having one inlet and four outlets according to an embodiment.

In this embodiment, the kimchi refrigerator having the first to fourth storage rooms 81 to 84 will be described as an example, and the 5-way step valve suitable for the above-described system with the refrigerant control valve 30 will be described as an example. However, the technical scope of the present invention is not limited to this, and various types and structures of valves may be employed according to the number and arrangement of storage chambers as the refrigerant control valve 30.

The 5-way step valve is installed between the inlet pipe 35 for introducing the refrigerant from the condenser 20 and the first to fourth expansion devices 41 to 44 to cool the refrigerant in the first to fourth expansion devices 41 to 44. Furnaces are provided with first to fourth discharge pipes 31 to 34, respectively.

When the refrigerant flows from the inlet pipe 35, the 5-way step valve rotates from the origin to the stop point according to the rotation of the step motor (not shown) provided therein, wherein the first to fourth outlet pipes 31 for each step ~ 34) to sequentially open and close to discharge refrigerant. In this case, the 5-way step valve opens only one of the first to fourth discharge pipes 31 to 34 for each step and closes the rest.

The control unit 90 selectively supplies the first to fourth storage rooms 81 to 84 to either the refrigeration mode or the refrigeration mode by supplying refrigerant to the first to fourth storage rooms 81 to 84 through the refrigerant control valve. In the process of, when the compressor 10 is stopped, it is checked whether or not the operation is performed when the compressor 10 is stopped for each of the first to fourth storage rooms 81 to 84. The control unit 90 changes the position of the refrigerant control valve 30 to the storage chamber side in the stopped state when the compressor is stopped according to the result of checking whether the operation has been performed. In this case, the storage chamber in the operation-on-time state may be a storage chamber in a refrigeration mode or a storage chamber having the largest accumulator capacity among storage chambers in a refrigeration mode.

Hereinafter, an operation control method of a kimchi refrigerator according to an embodiment of the present invention will be described for each refrigeration condition, single load condition, and standard condition.

First, the operation control method of the kimchi refrigerator under refrigeration conditions will be described with reference to FIGS. 3 and 4.

3 is a flowchart illustrating a method for controlling the operation of a kimchi refrigerator in a refrigerating condition according to an embodiment of the present invention, and FIG. 4 is a diagram illustrating an operation mode for each storage room in a refrigerating condition according to an embodiment of the present invention to be.

In the refrigeration condition, as shown in FIG. 4, all of the first to fourth storage rooms 81 to 84 are set to the refrigeration mode, and the first to fourth storage rooms ( 81 ~ 84).

Referring to FIG. 3, the control unit 90 sets the first to fourth storage rooms 81 to 84 in a refrigeration mode according to refrigeration conditions, and drives the compressor 10. At this time, the control unit 90 controls the refrigerant control valve 30 to supply the refrigerant to any of the first to fourth storage rooms 81 to 84 to operate the corresponding storage room (S110).

At this time, the control unit 90 determines whether the compressor 10 is stopped (S120). Here, the condition in which the compressor 10 is stopped may include maintaining an internal temperature of the storage chamber in operation within a preset temperature range.

When the compressor 10 is stopped, the control unit 90 checks whether each of the first to fourth storage rooms 81 to 84 is operated when the compressor is stopped (S130).

The control unit 90 controls the position of the refrigerant control valve 30 toward the storage compartment of the refrigerating mode in the stopped state according to the result of checking whether the operation is performed for each of the first to fourth storage rooms 81 to 84 (S140).

For example, if the compressor 10 is stopped while the first storage chamber 81 or the third storage chamber 83 is in operation, the refrigerant control valve is set to the refrigerating mode and is turned to the fourth storage chamber 84, which is in the stopped state when the compressor is stopped. Change the position of (30). That is, the control unit 90 opens the fourth discharge pipe 34 of the refrigerant control valve 30.

In addition, when the compressor 10 is stopped while the second storage chamber 82 or the fourth storage chamber 84 is operating in the refrigerating mode, the refrigerant control valve is set to the refrigerating mode and is turned to the third storage chamber, which is in the stopped state when the compressor is stopped ( 30). That is, the control unit 90 opens the third discharge pipe of the refrigerant control valve 30.

Accordingly, when the compressor is stopped, by changing the compressor equalization position, the liquid refrigerant in the accumulator of the storage chamber in operation when the compressor is stopped is prevented from flowing back into the evaporator, and the speed of the liquid refrigerant ejection inside the evaporator is reduced to reduce the noise level of the liquid refrigerant Order.

Moreover, when the compressor 10 is stopped, the control unit 90 rotates the cooling fan of the storage chamber in operation when the compressor is stopped (S150).

In this case, the control unit 90 increases or decreases the rotation time for rotating the cooling fan according to any one or more of the operation mode of the storage chamber and the amount of liquid refrigerant that were operating when the compressor was stopped. Through this, it is possible to vaporize the liquid refrigerant according to the operation mode and the amount of the liquid refrigerant.

For example, when the storage chamber that was operating when the compressor was stopped is operating in the refrigeration mode, the rotation time of the cooling fan may be set to 2 minutes.

This is because more liquid refrigerant accumulates in the accumulator in the refrigeration mode in which the internal temperature of the storage room is controlled to be relatively low.

Here, the rotation time of the cooling fan is not limited to the above-described time, and may be variously set by a storage room, an accumulator, and an evaporator.

On the other hand, as described above, the control unit 90 can evaporate the liquid refrigerant of the evaporator by rotating the cooling fan of the storage chamber in operation when the compressor is stopped, thereby reducing the amount of liquid refrigerant ejected from the evaporator, and through this, the noise caused by the liquid refrigerant Decreases.

Next, a method for controlling the operation of the kimchi refrigerator under a single load condition will be described with reference to FIGS. 5 to 7.

5 is a flow chart illustrating a method for controlling the operation of a kimchi refrigerator in a single load condition according to an embodiment of the present invention, and FIG. 6 shows an operation mode for each storage room in a single load condition according to an embodiment of the present invention 7 is a diagram illustrating an operation mode for each storage room under a single load condition according to an embodiment of the present invention.

Under the single load condition, as shown in FIGS. 6 and 7, the kimchi refrigerator has one of the first to fourth storage rooms 81 to 84 set to a refrigeration mode, and the other storage rooms to a refrigeration mode, and a refrigerant control valve ( 30), any one of the first to fourth storage rooms 81 to 84 is operated. For reference, in FIG. 6, the fourth storage chamber 84 disposed under the kimchi refrigerator is in the freezing mode, and the first to third storage chambers 81 to 83 are in the refrigeration mode. In FIG. 7, the third storage compartment 83 disposed under the kimchi refrigerator is in the freezing mode, and the first to second storage compartments and the fourth storage compartments 81, 82 and 84 are in the refrigeration mode.

Referring to FIG. 5, the control unit 90 drives the compressor 10 by setting any one of the first to fourth storage rooms 81 to 84 to a refrigeration mode and setting the remaining storage rooms to a refrigeration mode according to a single load condition. Order. At this time, the control unit 90 controls the refrigerant control valve 30 to supply the refrigerant to one of the first to fourth storage rooms 81 to 84 to operate the corresponding storage room (S210).

At this time, the control unit 90 determines whether the compressor 10 is stopped (S220).

When the compressor 10 is stopped, the control unit 90 checks whether each of the first to fourth storage rooms 81 to 84 is operated when the compressor is stopped (S230).

The control unit 90 is the refrigerant control valve 30 toward the storage chamber having the largest accumulator capacity among the storage chambers in the refrigerated mode in which the operation is stopped, according to a result of checking whether the operation is performed for each of the first to fourth storage chambers 81 to 84 Control the position of (S240).

For example, the position of the refrigerant control valve 30 is changed to any one of a large accumulator capacity among the lower third storage chamber 83 and the fourth storage chamber 84 set to the refrigeration mode. That is, the control unit 90 opens any one of the third ejection pipe 33 and the fourth ejection pipe 34.

Accordingly, when the compressor is stopped, the liquid refrigerant in the accumulator of the storage chamber that was in operation when the compressor is stopped is prevented from flowing back into the evaporator when the compressor is stopped, and the liquid refrigerant ejection rate inside the evaporator is reduced to reduce the noise level of the liquid refrigerant. Order.

Moreover, when the compressor 10 is stopped, the control unit 90 rotates the cooling fan of the storage chamber that was operating when the compressor was stopped (S250).

In this case, the control unit 90 increases or decreases the rotation time for rotating the cooling fan according to the operation mode of the storage room that was operating when the compressor was stopped.

For example, when the storage compartment operating when the compressor is stopped is operating in the refrigeration mode, the rotation time of the cooling fan may be set to 2 minutes, and when the storage compartment operating when the compressor is stopped is operating in the refrigeration mode, the rotation time of the cooling fan Can be set to 4 minutes.

On the other hand, as described above, the control unit 90 can evaporate the liquid refrigerant of the evaporator by rotating the cooling fan of the storage chamber in operation when the compressor is stopped, thereby reducing the amount of liquid refrigerant ejected from the evaporator, and through this, the noise caused by the liquid refrigerant Decreases.

Finally, a method for controlling the operation of the kimchi refrigerator under standard conditions will be described with reference to FIGS. 8 and 9.

8 is a flowchart illustrating a method for controlling the operation of a kimchi refrigerator under standard conditions according to an embodiment of the present invention, and FIG. 9 is a diagram illustrating an operation mode for each storage room under standard conditions according to an embodiment of the present invention to be.

Under standard conditions, as shown in FIG. 9, the kimchi refrigerator is set to the first and second storage rooms 81 and 82 in the upper part of the kimchi refrigerator, and the third and fourth storage rooms are disposed in the refrigeration mode. (83,84) is set to the refrigeration mode, any one of the first to fourth storage chambers 81 to 84 is operated by the refrigerant control valve 30 described above.

Referring to FIG. 8, the control unit 90 sets the first and second storage rooms 81 and 82 to a refrigeration mode and sets the third and fourth storage rooms 83 and 84 to a freezing mode according to standard conditions. The compressor 10 is driven. At this time, the control unit 90 controls the refrigerant control valve 30 to supply the refrigerant to one of the first to fourth storage rooms 81 to 84 to operate the corresponding storage room (S310).

At this time, the control unit 90 determines whether the compressor 10 is stopped (S320). Here, the conditions in which the compressor 10 is stopped may include maintaining the storage room temperature within a preset temperature range during operation.

When the compressor 10 is stopped, the control unit 90 checks whether each of the first to fourth storage rooms 81 to 84 is operated when the compressor is stopped (S330).

The control unit 90 controls the position of the refrigerant control valve 30 toward the storage compartment of the refrigerating mode in the stopped state according to the result of checking whether the operation is performed for each of the first to fourth storage rooms 81 to 84 (S440). .

For example, when the compressor 10 is stopped while the first storage chamber 81 or the third storage chamber 83 is in operation, the refrigerant control valve is set to the refrigerating mode and is set to the second storage chamber, which is in the stopped state when the compressor is stopped ( 30). That is, the control unit 90 opens the second discharge pipe 32 of the refrigerant control valve 30.

In addition, when the compressor 10 is stopped while the second storage chamber 82 or the fourth storage chamber 84 is operating, the refrigerant control valve is set to the first storage chamber 81 which is set to the refrigeration mode and is stopped when the compressor is stopped ( 30). That is, the control unit 90 opens the first discharge pipe 31 of the refrigerant control valve 30.

Accordingly, when the compressor is stopped, the liquid refrigerant in the accumulator of the storage chamber that was in operation when the compressor is stopped is prevented from flowing back into the evaporator when the compressor is stopped, and the liquid refrigerant ejection rate inside the evaporator is reduced to reduce the noise level of the liquid refrigerant. Order.

Moreover, when the compressor 10 is stopped, the control unit 90 rotates the cooling fan of the storage chamber that was operating when the compressor was stopped (S250).

In this case, the control unit 90 increases or decreases the rotation time for rotating the cooling fan according to the operation mode of the storage room that was operating when the compressor was stopped.

For example, when the storage compartment operating when the compressor is stopped is operating in the refrigeration mode, the rotation time of the cooling fan may be set to 2 minutes, and when the storage compartment operating when the compressor is stopped is operating in the refrigeration mode, the rotation time of the cooling fan Can be set to 4 minutes.

On the other hand, as described above, the control unit 90 can reduce the amount of liquid refrigerant ejected from the evaporator by evaporating the liquid refrigerant of the evaporator by rotating the cooling fan in the storage compartment in operation when the compressor is stopped. Decreases.

For reference, the above-described step (S250) may be selectively employed as needed.

As described above, the operation control method of the kimchi refrigerator according to an embodiment of the present invention prevents noise from being generated by the liquid refrigerant accumulated in the accumulator.

That is, according to the present invention, when the compressor is stopped, the position of the refrigerant control valve 30 is controlled to change the compressor equalization position, thereby preventing backflow of the liquid refrigerant accumulated in the accumulator inside the storage compartment. In addition, the present invention reduces the pressure of the liquid refrigerant ejected from the evaporator to the accumulator by controlling the position of the refrigerant control valve 30 when the compressor 10 is started, thereby reducing the ejection speed of the liquid refrigerant and thereby ejecting it from the evaporator to the accumulator. It reduces the noise generated by liquid refrigerant.

Moreover, the present invention evaporates the liquid refrigerant inside the evaporator by rotating the cooling fan inside the evaporator to reduce the liquid refrigerant ejected from the evaporator to the accumulator, thereby reducing the noise generated by the liquid refrigerant.

The present invention has been described with reference to the embodiment shown in the drawings, but this is only an example, and those skilled in the art to which the technology belongs understand that various modifications and other equivalent embodiments are possible therefrom. will be. Therefore, the true technical protection scope of the present invention should be defined by the claims below.

10: compressor 20: condenser
30: refrigerant control valve 31: first discharge pipe
32: second discharge pipe 33: third discharge pipe
34: fourth discharge pipe 35: inlet pipe
41 ~ 44: first expansion device 42: second expansion device
43: third expansion device 44: fourth expansion device
51: first evaporator 52: second evaporator
53: third evaporator 54: fourth evaporator
61: first accumulator 62: second accumulator
63: third accumulator 64: fourth accumulator
71: first cooling fan 72: second cooling fan
73: third cooling fan 74: fourth cooling fan
81: first storage room 82: second storage room
83: 3rd storage room 84: 4th storage room
90: control

Claims (8)

Determining whether the compressor is stopped;
As a result of the determination, if the compressor is stopped, checking whether or not the compressor is stopped when the compressor is stopped; And
And changing the position of the refrigerant control valve toward the storage compartment in the stopped state when the compressor is stopped depending on whether the storage compartment is operated.
When the compressor is stopped, further comprising the step of rotating the cooling fan of the storage chamber in operation when the compressor is stopped,
The rotation time of the cooling fan is increased or decreased according to at least one of the operation mode of the storage compartment and the amount of liquid refrigerant that were operating when the compressor was stopped,
The rotation time of the cooling fan is the operating mode of the storage compartment, which was operating when the compressor was stopped, is a refrigeration mode, and an operation control method of a mixed kimchi refrigerator, characterized in that it increases as the amount of liquid refrigerant increases.
The method of claim 1, wherein the step of changing the position of the refrigerant control valve is
Method for controlling the operation of the mixed kimchi refrigerator, characterized in that the position of the refrigerant control valve is changed to the storage chamber side in the stopped state when the compressor is stopped.
The method of claim 2, wherein the step of changing the position of the refrigerant control valve is
A method for controlling the operation of a mixed kimchi refrigerator, wherein the position of the refrigerant control valve is changed to a storage compartment in which the operation mode is a refrigeration mode among the storage rooms in the stopped state.
The method of claim 2, wherein the step of changing the position of the refrigerant control valve is
And controlling the position of the refrigerant control valve according to the capacity of the accumulator in the storage compartment.
The method of claim 4, wherein the step of changing the position of the refrigerant control valve is
A method for controlling the operation of a mixed kimchi refrigerator, characterized in that the position of the refrigerant control valve is changed to a storage room having the largest capacity of the accumulator among the storage rooms in the stopped state.
The method of claim 5, wherein the storage room having the largest capacity of the accumulator is any one of the storage rooms in which the operation mode is a refrigeration mode.
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