KR102222501B1 - A Refrigerator - Google Patents

Abstract

The present invention relates to a bottom freezer refrigerator in which an ice-making compartment is formed on a door, and in more detail, cold air formed in an independent space of the refrigerating compartment is individually guided to the ice-making compartment and the refrigerating compartment,
As the length of the flow path increases, power consumption and noise can be eliminated, and each food can be refrigerated or frozen in a clean state.
The present invention relates to a refrigerator that can freshly store food in a refrigerating room in a high humidity state and prevent the door from being forcibly opened.

Description

Refrigerator{A Refrigerator}

The present invention relates to a bottom freezer refrigerator in which an ice-making compartment is formed in a door, and in more detail, cold air formed by an evaporator installed in an independent refrigerating compartment is individually guided to the ice-making compartment of the door,

It relates to a refrigerator that can minimize power consumption and noise and maintain a clean state, as well as store food in the refrigerator compartment in a high-humidity state, prevent the door from being forcibly opened, and secure enough interior space in the refrigerator compartment. .

In general, refrigerators are devices intended for low-temperature storage of food, and are household appliances that are frozen or refrigerated according to the condition of the food to be stored. I'm doing it.

That is, by forming an inner inlet on the inside of a polygonal body, and installing a partition wall separating the upper and lower spaces on the inner inlet

A refrigerating chamber is formed in the upper part and a freezing chamber is formed in the lower part,

A plurality of doors are rotatably coupled to the front,

A bottom freezer refrigerator that allows users to easily take out and use food stored in the refrigerator room without having to bend their back has appeared.

According to an embodiment, a refrigerator in which an ice-making facility is built on the door of the refrigerating compartment has also appeared.

However, in such a refrigerator, the evaporator of the freezer located at the bottom generates cold air by a heat exchange method, and moves it to the inside of the ice making room along the flow path to generate ice. Keep the items in cold storage. In addition, the cold air in the refrigerating chamber is moved back to the freezing chamber, and the ice-making chamber, the refrigerating chamber, and the freezing chamber are repeatedly circulated.

Therefore, in the conventional bottom freezer refrigerator, as the length of the flow path that moves the freezing compartment, the ice-making compartment, and the refrigerating compartment becomes longer, it is difficult to control the cooling rate.

In particular, as the length of the flow path through which the cold air travels becomes longer, the power consumed due to the operation of the motor and heat loss to maintain it is inevitably increased, and the noise is inevitable.

In addition, in the conventional refrigerator, the refrigerating compartment located at the top must be in a state of sufficient moisture to keep it fresh. On the contrary, the freezer compartment is kept dry because there is a problem such as frost trapping inside when there is a lot of moisture. Must be given. However, in a conventional refrigerator, as cold air in a high-humidity state of the refrigerating chamber moves to the freezer, frost is generated inside, while cold air in the dry freezer is moved to the refrigerating chamber through the ice-making chamber, creating a state of insufficient moisture, which causes time to pass. After that, there was a problem that the freshness of the food decreases.

Moreover, in a conventional bottom freezer refrigerator, cold air circulates between a refrigerator compartment and a freezer compartment in which different doors are installed, and at this time, the refrigerator compartment and the freezer compartment communicate with each other. Therefore, when the door of the refrigerating chamber located at the top is closed, air is introduced to the inside, and the air introduced at this time is moved to the freezer through the refrigerating chamber, and the door of the freezing chamber is forcibly opened.

In addition, as cold air moves between the freezing compartment, the ice-making compartment, and the refrigerating compartment, there was a problem in that the smell of food stored in the refrigerator compartment or the freezer compartment spreads to the entire refrigerator.

In addition, when the ice-making facility was built, the dispenser was formed on the door, but the ice-making compartment was installed in a state in which a separate space was provided inside the refrigerating compartment, resulting in a narrow interior space.

KR 10-2005-0127516 A1 KR 10-2005-0008905 A1

Accordingly, the present invention is to solve the problem that occurs when the length of the flow path through which the cold air generated inside the freezing chamber by the evaporator repeatedly circulates between the ice making chamber and the refrigerating chamber is kept long.

In other words, the present invention is to minimize the power consumption and noise generated while maintaining a long flow path length of the cold air moving between the freezing compartment, the ice-making compartment and the refrigerating compartment.

In addition, the refrigerating chamber maintains a sufficient high humidity state for a long period of time, while the freezing chamber maintains a dry state so that frost does not occur.

In addition, the present invention is to prevent food odor from spreading to the entire refrigerator to maintain each refrigerating compartment, freezing compartment, and ice-making compartment in a clean state.

In addition, the present invention is to minimize the fact that the door is forcibly opened and that the inner space of the refrigerating chamber is narrowed due to the ice making chamber.

To this end, in the present invention, the refrigerating chamber and evaporator formed on the upper side, the freezing chamber and the third evaporator formed on the lower side, at least one door rotatably installed in the refrigerating chamber and the freezing chamber, respectively, and the door formed on the door. The ice-making compartment, the cold air inflow duct installed in the front-rear direction inside or outside the refrigerating compartment, and the other end is installed in a state exposed to the inside of the refrigerating compartment, and the other end of the cold air outflow duct when it is closed by being installed on one side of the ice-making compartment of the door In a refrigerator configured to include a connector that is in close contact with and communicates with, and is configured to move cold air generated inside the cold air forming part by a heat exchange method when the evaporator is operated to the ice making room or the refrigerating room of the door through the cold air outflow duct and the connector,
A cold air forming part divided into a first cooling air forming part and a second cooling air forming part is formed in the refrigerating compartment of the refrigerator,
The first cold air forming unit and the second cold air forming unit share one evaporator, and the cold air generated by the heat exchange method when the evaporator is operated is configured to be separately accommodated into a first cooling air forming unit and a second cooling air forming unit,
The cold air of the first cold air forming unit is directly guided into the refrigerating chamber, and the cold air of the second cold air forming unit is guided to the ice-making compartment of the door, so that the cold air is circulated separately,
The length of the flow path is shortened to reduce power consumption, noise, and frost generated in the ice making room, while preventing food odor from spreading to the entire refrigerator to maintain a clean state.

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In the present invention, a third evaporator is installed in a freezing chamber, and an evaporator or a first evaporator and a second evaporator are installed in the refrigerating chamber,

As cold air generated in each independent space is supplied to each ice maker, freezer and refrigerator compartment,

The length of the cold air passage is shortened, reducing power consumption and noise,

At the same time, the refrigerator compartment was kept in a sufficiently high humidity state to keep food freshly refrigerated, and the freezer compartment was kept dry to minimize the occurrence of frost.

It is possible to keep each refrigerator compartment, freezer compartment, and ice maker clean by preventing damage caused by the movement of odors of food.

When one side of the refrigerator compartment door is closed, it is possible to prevent the other side of the freezing compartment door from being forcibly opened.

In addition, according to the present invention, as the ice-making compartment is installed on the door, it is possible to sufficiently secure the interior space of the refrigerating compartment.

1 and 2 are perspective views before and after a door of a refrigerator according to an embodiment of the present invention is opened.
Figure 3 is a use state diagram showing the appearance of the connector of the door according to the embodiment of the present invention
4 to 6 are diagrams illustrating a state in which cold air circulates in a refrigerator according to an exemplary embodiment of the present invention.
7 is a circuit diagram schematically showing the configuration of a refrigerator according to an embodiment of the present invention.

Hereinafter, specific details for carrying out the present invention will be described with reference to the accompanying drawings.

First, FIGS. 1 to 2 are views illustrating a case when a door of a refrigerator according to an exemplary embodiment of the present invention is opened and when it is closed.

As shown, the refrigerator of the present invention forms an inner inlet inside the polygonal body 1, and a partition wall separating the upper and lower spaces is provided at the inner inlet, so that the refrigerating chamber 10 and the freezing chamber are respectively on one side and the other side. Form 20.

At this time, the refrigerating compartment 10 is formed on the main body, and a shelf for efficiently storing various types of food is installed in the refrigerating compartment 10 to divide the space of the refrigerating compartment 10, and the shelf It is installed so that the height can be adjusted as well as detachable/requestable.

In addition, an evaporator 11 is installed at the rear of the refrigerating chamber 10, and a cold air forming part 12 is formed inside. When the evaporator 11 is operated, cold air is formed inside the cold air forming part 12 by a heat exchange method. It is built to be created.

At this time, the generated cold cold air flows into the refrigeration compartment 10 so that food can be refrigerated, and some of it flows in/out to the ice-making compartment 33 of the door along the cold air inflow duct 40 to make ice. It is designed to be stored frozen.

At this time, the cold air forming part 12 is divided into a first cold air forming part 12a and a second cold air forming part 12b according to an embodiment, and is divided,

The cold air generated inside the first cold air forming part 12a is guided into the refrigerating compartment 10 to lower the temperature of the refrigerating compartment 10, and the cold air generated inside the second cold air forming part is guided to the ice-making compartment of the door. It is designed to be able to create and store frozen.

In addition, the evaporator 11 installed at this time may be composed of one, but depending on the embodiment, it is divided into a first evaporator 11a and a second evaporator 11b to form a first cold air forming part 12a and a second cooling air respectively. It may be installed on the part 12b.

And the cold air outflow pressure duct 40 formed long in the front-rear direction is fixedly installed on the wall surface of the refrigerating chamber 10 in a protruding state, and one side of this cold air inflow duct is connected to the cold air forming part 12 , The other end of which the through hole is formed is installed in a state exposed to the inside of the refrigerating chamber 10.

And in the corresponding door 30, the outlet 31 is formed, and when the door is closed, the other end 41 of the cold air outlet duct 40 and the outlet 31 of the door 30 are While in close contact, the cold air flows into or out of the ice making chamber 33 along the cold air outflow pressure duct 40.

In addition, a temperature sensor 34 is installed around the outlet 31, and when it detects that the door 30 is open, the other end 41 of the cold air outlet duct 40 and the door are leaked. It is confirmed that the inlets 31 are separated from each other, and the motor or damper is automatically controlled to control the movement of cold air.

In addition, the cold air inflow and outflow duct 40 may be installed protruding inside the refrigerating chamber, or may be installed so as to expose only the other end inside the wall surface.

In addition, the cold air inflow duct 40 may be formed to form a longitudinally elongated partition wall inside one enclosure so that one side of the cold air flows in and the other side flows out,

Separately, it is divided into a cold air inflow duct 40a for transferring cool air from the cold air forming part 12 to the inside of the ice making room, and a cold air outflow duct 40b for transferring cold air from the ice making room to the cold air forming part of the refrigerating compartment 10. It is installed, and the inlet and outlet may be formed on the side or rear side of the door 30 corresponding thereto.

At this time, the cold air inflow duct 40 or the cold air inflow duct 40a and the cold air outflow duct 40b are installed at the shortest distance between the ice making room and the cold air forming part as possible in order to minimize the length of the flow path through which the cold air flows.

For reference, the doors 30a and 30b are formed of a plurality of doors and are rotatably installed on the front left and right sides of the refrigerating chamber 10, respectively, to completely or partially cover or open the front of the opened refrigerating chamber 10.

In addition, a freezing chamber 20 is formed in the lower portion of the refrigerating chamber 10, and a shelf for efficiently storing food stored in the freezing chamber is formed inside the freezing chamber 20, and in the front of the freezing chamber 20 A separate freezing chamber 20 and a door 30c for shielding the open inner space are installed to be rotatable.

In addition, a third evaporator 21 is installed at the rear of the freezing chamber 20, and the third evaporator 21 generates cold air in the third cold air forming unit 22 inside the freezing chamber 20 by a heat exchange method. And, the cold air generated by the third evaporator 21 is configured to flow into the freezer compartment 20 in which the shelf is installed, so that the food stored in the freezer compartment 20 can be frozen and stored.

Therefore, in the present invention, the third evaporator 21 is installed in the freezing chamber 20, and the evaporator 11 or the first evaporator 11a and the second evaporator 11b are installed in the refrigerating chamber 10, respectively. As the cold air generated in the independent space of is supplied to the ice making room, the freezing room 20 and the refrigerating room 10,

While securing a sufficient interior space, it is possible to solve the problem of increasing power consumption and noise, damage caused by the movement of odors of food, and the problem of forcibly opening the door.

In addition, it is possible to keep food fresh by maintaining the inside of the refrigerator compartment in a high humidity state, and to keep the freezer in a dry state so that frost does not occur.

For reference, FIG. 3 is a view showing a connector that operates according to whether a door of a refrigerator is opened or closed according to an embodiment of the present invention.

Referring to this description, a connector 32 is installed at the outlet 31 of the door 30, and the connector 32 has an annular shape fixed to the edge of the outlet or a pair of outlets and inlets of the door. It comprises a mounting portion (32a) and a soft elastic body (32b) curved upward above the mounting portion.

The elastic body 32b at this time has a voluminous feel, and when the door is closed, the elastic body 32b having a voluminous feel is contracted while being in close contact with the other end 41 of the cold air outflow pressure duct 40. The spaced distance between the door and the refrigerating chamber 10 is filled in the center so that it is completely in close contact.

Therefore, in the present invention, the ice-making compartment 33 of the door 30 and the cold air outflow pressure duct of the refrigerating compartment 10 are connected by a connection port 32 mounted at the outlet or a pair of outlets and the inlet. ,

There is no need to provide a space in which a separate ice-making room is installed inside the refrigerating room, and sufficient interior space can be secured.

In addition, FIGS. 4 and 4A are diagrams illustrating a state in which cold air circulates in a refrigerator according to an exemplary embodiment of the present invention.

Referring to this description, in the refrigerator according to the embodiment of the present invention, a refrigerating chamber 10 is formed on the upper side, a cold air forming part 12 is formed inside, and an evaporator 11 is installed in the cold air forming part. Has been.

At this time, a plurality of flow paths 15 for supplying cool air into the refrigerating chamber 10 are formed in the cold air forming unit 12, and a first fan ( 13) is installed, and a first damper 14 is installed to control the on/off of cold air in/out of the flow path.

In addition, the cold air forming unit 12 may be connected to the cold air inflow and outflow duct 40, and a second damper 19 for controlling on/off of cold air flowing in/out of the cold air inflow and outflow duct may be installed.

Therefore, in the present invention, the cold air generated inside the cold air forming part 12 flows into the refrigerating chamber 10 through the flow path 15 when the first damper 14 is intercepted, and the cold air when the second damper 19 is intercepted. The cold air generated inside the forming part can flow in/out to the ice making room 33 installed in the door 30 through the cold air flow in/out duct 40.

In addition, a freezing chamber 20 is formed in the lower portion of the refrigerating chamber 10, a separate third cooling air forming part 22 is formed inside the freezing chamber 20, and a third cooling air forming part 22 is formed in the third cooling air forming part. Evaporator 21 is installed

In addition, a plurality of freezer compartments 20 flow paths for supplying cool air to the inside of the refrigerating compartment 10 are formed in the third cold air forming part 22, and the amount or cooling rate of the cold air flowing in and out of the freezer compartment 20 flow path A third fan 23 for controlling the flow and a third damper 24 for controlling on/off of cold air is installed.

In addition, FIGS. 5 and 5A are views illustrating the circulation of cold air in the refrigerator according to the second embodiment.

Referring to this description, the refrigerating chamber 10 is formed on the upper side, and the first cold air forming part 12a and the second cooling air forming part 12b are separately formed on the inside, and the first cooling air formation Each of the first evaporator 11a and the second evaporator 11b may be installed in the portion 12a and the second cold air forming portion 12b.

At this time, a plurality of flow paths 15 for supplying cold air to the inside of the refrigerating chamber 10 are formed in the first cold air forming part 12a, and a first for controlling the amount or cooling rate of the cold air flowing in and out of the flow path. A fan 13 is installed, and a first damper 14 may be installed to regulate on/off of cold air in/out according to an embodiment.

In addition, the second cold air forming unit 12b may be connected to the cold air inflow and outflow duct 40, and a second damper 19 for controlling on/off of cold air flowing in/out of the cold air inflow and outflow duct may be installed. At this time, the second damper 19 is installed inside the ice making room according to the embodiment to allow cold air to be introduced into the ice making room.

Therefore, in the present invention, the cold air generated inside the first cold air forming portion 12a is introduced into the refrigerating chamber 10 and the cold air generated inside the second cold air forming portion 12a is installed on the door through the cold air inflow and outflow duct. It will flow into/out of the ice making room (33),

It is possible to solve the problem of increasing power consumption and noise while securing a sufficient interior space, damage caused by movement of smells of food, and the problem of forcibly opening the door.

In addition, it is possible to keep food fresh by maintaining the inside of the refrigerator compartment in a high humidity state, and to keep the freezer compartment in a dry state so that frost does not occur.

In addition, a freezing chamber 20 is formed in the lower portion of the refrigerating chamber 10, a separate third cooling air forming unit is formed inside the freezing chamber 20, and a third evaporator is formed in the third cooling air forming unit 22. (21) is installed. In addition, a plurality of freezer compartments 20 flow paths for supplying cool air to the inside of the refrigerating compartment 10 are formed in the third cold air forming part 22, and the amount or cooling rate of the cold air flowing in and out of the freezer compartment 20 flow path A third fan 23 for controlling the flow and a third damper 24 for controlling on/off of cold air is installed.

For reference, FIG. 6 schematically shows a configuration for circulating cold air in the refrigerating compartment 10 according to an embodiment of the present invention,

When described with reference to this, separate first and second cold air forming portions 12a and 12b are formed inside the refrigerating chamber 10, and one of the first and second cold air forming portions The evaporator 11 may be installed in a shared state.

At this time, the first cold air forming part 11a and the second cooling air forming part 11b have different areas, as well as different areas that share the evaporator, and are created inside the first and second cool air forming parts. The temperatures are different and are insulated.

In addition, a plurality of flow paths 15 for supplying cold air to the inside of the refrigerating chamber 10 are formed in the first cold air forming part 12a. One fan 13 is installed, and according to an embodiment, a first damper 14 may be installed for controlling on/off of cold air in/out.

In addition, the second cold air forming part 12b is connected to the cold air inflow duct 40, and the second damper 19 and the amount of cold air to control on/off cold air moving in and out of the cold air inflow duct 40 A second fan 18 is formed to reduce the cooling rate. At this time, the formed second damper or the second fan may be installed inside the ice making room 33 according to an exemplary embodiment.

Therefore, in the present invention, the cold air generated in the first cold air forming unit and the second cold air forming unit in different regions with one evaporator flows into and out of the refrigerating chamber 10 and the ice making chamber 33, respectively.

It is possible to solve the problem of increasing power consumption and noise while securing a sufficient interior space, damage caused by the movement of odors of food, and the problem of forcibly opening the door.

In addition, it can keep food fresh by keeping the inside of the refrigerator in a high humidity state, and keep the freezer in a dry state so that frost does not occur.

In this case, as shown in FIG. 6A, a second flow path through which cold air can move from one side to the other or from the other side to one side between the second cold air forming part 12b and the first cooling air forming part 12a according to an embodiment. To form (16),

By forming a fourth damper 17 capable of controlling cold air that can enter and exit through the second flow path 16,

When the fourth damper 17 is operated, the first cold air forming part 12a secures an additionally expanded cold air by the second cooling air forming part 12b, or, conversely, the second cold air forming part 12b becomes the first cold air. By securing the cold air extended by the forming part 12a, the temperature of the refrigerating compartment 10 or the ice making compartment 33 may be rapidly cooled or the temperature may be adjusted.

In addition, FIGS. 7 to 7B are flowcharts schematically showing the configuration of a refrigerator according to an exemplary embodiment of the present invention.

Referring to this, in the present invention, one side of a compressor is connected to an evaporator of an ice making room and the other side is connected to a condenser. And the other side of the condenser connected in this way is connected in series with the dryer.

And the other side of this dryer is connected to a valve (VAL_VE), the valve (VAL_VE) is connected to the capillary (R_CAPILLARY) of the refrigerating compartment (10), the capillary (R_CAPILLARY) of the freezing compartment (20) is 1 It is connected to the evaporator (R_EVA).

At this time, the other side of the first evaporator (R_EVA) is connected to the third evaporator (F_EVA), and the third evaporator (F_EVA) is connected in series with the second evaporator (I/M_EVA) installed in another area in the refrigerating chamber, and the The other side of the second evaporator I/M_EVA is connected to a compressor.

At this time, between the valve (VAL_VE) and the third evaporator (F_EVA), a capillary tube (F_CAPILLARY) of the freezing chamber 20 may be connected in parallel,

Depending on the embodiment, between the valve VAL_VE and the second evaporator I/M_EVA, a capillary tube F_CAPILLARY and a third evaporator F_EVA of a series-connected freezing chamber may be connected in parallel.

In addition, in a state in which a capillary tube (F_CAPILLARY) and a third evaporator (F_EVA) of a freezing chamber connected in series are connected in parallel between the valve and the compressor according to the embodiment,

A capillary tube (R_CAPILLARY) and a first evaporator (R_EVA) of a refrigerating chamber connected in series between the valve and the compressor are connected in parallel,

In addition, the capillary tube (I/M_CAPILLARY) of the ice making room connected in series between the valve and the compressor and the second evaporator (I/M_EVA) are connected in parallel,

While each evaporator operates individually, it may be constructed so that cold air generated by the second evaporator (I/M_EVA) of the refrigerating chamber is applied to the inside of the ice making chamber.

Accordingly, in the present invention, a third evaporator is installed in the freezing chamber, and an evaporator or a first evaporator and a second evaporator are installed in the refrigerating chamber, and the cold air generated in each separate space is supplied to each ice maker, the freezing chamber, and the refrigerating chamber, respectively. Losing,

As the length of the cold air flow path has been shortened, consumption can reduce power and noise,

In addition, fresh food can be refrigerated by maintaining the refrigerator in a high humidity state,

Food and ice stored in each refrigerator, freezer, and ice making room can be kept clean by preventing damage caused by the movement of food odors.

When one side of the refrigerator compartment door is closed, the other side of the freezer compartment door is prevented from being forcibly opened.

1; body 10: refrigerator
11: evaporator 11a: first evaporator
11b: second evaporator 12: cold air forming part
12a: first cold air forming portion 12b: first cold air forming portion
13: The 1st fan
14: first damper 15: euro
16 Euro 2 17: Damper 4
18: second fan 19: second damper
20: Freezer
21: 3rd evaporator 22: 3rd cold air formation part
23: 3rd fan 24: 3rd damper
30: door 31: outlet
32: connector 32a: mounting part
32b: elastic body 33: ice making room
40: cold air inlet duct
41: the other end

Claims (9)

The refrigerating chamber and evaporator formed in the upper part, the freezing chamber and the third evaporator formed in the lower part, at least one door rotatably installed in the refrigerating compartment and the freezing compartment, respectively, an ice-making compartment formed in the door, and the inside of the refrigerating compartment Alternatively, the cold air outflow duct is installed on the outside in the front and rear direction and the other end is exposed inside the inner wall of the refrigerating compartment, and is installed on one side of the ice-making compartment of the door so that when it is closed, it is in close contact with the other end of the cold air inflow duct and communicates with it. In a refrigerator configured to include a connection port, wherein the cold air generated inside the cold air forming part by a heat exchange method when the evaporator is operated is moved to the ice making room or the refrigerating room of the door through the cold air outflow duct and the connection port,
A cold air forming part divided into a first cooling air forming part and a second cooling air forming part is formed in the refrigerating compartment of the refrigerator,
The first cold air forming unit and the second cold air forming unit share one evaporator, and the cold air generated by the heat exchange method when the evaporator is operated is configured to be separately accommodated into a first cooling air forming unit and a second cooling air forming unit,
The cold air of the first cold air forming unit is directly guided into the refrigerating chamber, and the cold air of the second cold air forming unit is guided to the ice-making compartment of the door, so that the cold air is circulated separately,
It is configured to reduce power consumption, noise, and frost generated in the ice making room by shortening the length of the flow path, while preventing food odor from spreading to the entire refrigerator to prevent the interior space from becoming narrow while maintaining a clean state. Refrigerator, delete delete delete The method of claim 1,
A refrigerator, characterized in that a temperature sensor is installed at the other end of the cold air inlet duct or around the connector to detect the opening and closing of the door and to control the cold air flowing out, The method of claim 1,
The connector is a refrigerator, characterized in that an annular mounting portion fixedly installed at the outlet or a pair of outlets and the inlet of the door, and a soft elastic body curved upward above the mounting portion are integrally formed, The method of claim 1,
The first cooling air forming part is provided with a first fan for controlling the amount or cooling speed of the cold air moving along the flow path, and a first damper for controlling on/off of the cold air moving out of the flow path,
The second cooling air forming part is equipped with a second fan to control the amount or cooling speed of the cold air moving along the cold air inflow duct, and a second damper to control on/off of the cold air moving to the ice making room through the cold air inflow duct. Became,
Refrigerator, characterized in that it is configured to circulate the cold air of the first cooling air forming unit and the second cooling air forming unit separately The method of claim 7,
A second flow path is formed between the second cooling air forming part and the first cooling air forming part, and a fourth damper capable of intercepting cold air that can enter and exit through the second flow path is formed,
When the fourth damper is operated, the first cold air forming unit is configured to secure cold air that is additionally expanded as much as the second cold air forming unit, or conversely, the second cold air forming unit is configured to secure cold air that is expanded by the first cold air forming unit. Refrigerator characterized by. The refrigerating chamber formed at the top, the first and second cooling units each having a first evaporator and a second evaporator, a freezing chamber and a third evaporator and a third cooling unit formed at the bottom, the refrigerating chamber and the freezing chamber At least one door rotatably installed in the door, the ice-making compartment formed in the door, the cold air inflow duct installed in a longitudinal direction inside or outside the refrigerating compartment, and the other end exposed inside the inner wall of the refrigerating compartment, the door In the refrigerator comprising a connector that is installed on one side of the ice making room of and is in close contact with the other end of the cold air inflow duct when it is closed and communicates with,
One side of the compressor of the refrigerator is connected to a second evaporator (I/M_EVA) of the ice making room, the other side is connected to one side of a condenser, and the other side of the condenser is a dryer. Is connected in series with one side of the dryer, and the other side of the dryer is connected to one side of the valve VAL_VE,
The valve (VAL_VE) is connected to one end of a capillary tube (R_CAPILLARY) of the refrigerating chamber and a capillary tube (F__CAPILLARY) of the freezing chamber, respectively, and the other side of the capillary tube (R_CAPILLARY) is connected to one side of the first evaporator (R_EVA), and the first evaporator The other side of (R_EVA) is connected to one side of a third evaporator (F_EVA) and the other side of a capillary tube (F__CAPILLARY), and the third evaporator (F_EVA) is connected in series with one side of the second evaporator (I/M_EVA), and the first 2 A refrigerator, characterized in that the other side of the evaporator (I/M_EVA) is connected to a compressor.

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