KR100437774B1 - separate-cooling type refrigerator - Google Patents

Abstract

The present invention relates to an independent cooling refrigerator, and an object of the present invention is to provide an independent cooling refrigerator capable of independently cooling each of the cold air passages of the refrigerating compartment and the cold air passages of the freezing compartment, despite having one evaporator.

In order to achieve the above object, the independent refrigeration refrigerator according to the present invention is provided in the freezer compartment side cold air duct 10, the refrigerator compartment side cold air duct 20 partitioned from the freezer compartment side cold air duct, and the freezer compartment side cold air duct. It is provided in the evaporator 30, the actual cold air is heat-exchanged, heat transfer means 40 receiving heat from the evaporator by convection or conduction, and the cold compartment-side cold air is heat-exchanged, and the freezer compartment side cold air duct and the cold compartment side cold air duct, respectively. And a blowing fan for forcibly sucking and discharging cold air in the refrigerator by an evaporator or a heat transfer means.

Therefore, the independent refrigeration refrigerator according to the present invention, as the cold air circulating the freezer compartment is heat-exchanged by the evaporator and the cold air circulating the refrigerating compartment is heat-exchanged by the heat transfer means, even though one evaporator is provided independently of the freezer compartment and the refrigerating compartment Can be cooled.

Description

Independent Cooling Refrigerator {separate-cooling type refrigerator}

The present invention relates to a refrigerator, and more particularly, to an independent cooling refrigerator capable of separating a cold air passage circulating a freezer compartment and a cold air passage circulating a refrigerating compartment using one evaporator.

In general, a refrigerator is a device that keeps food fresh for a certain period of time by reducing the temperature in the refrigerator as the refrigerant is repeatedly compressed, condensed, expanded, and evaporated.

Such a refrigerator includes a compressor for raising / heating a low temperature / low pressure gas refrigerant to a high temperature / high pressure gas refrigerant, a condenser for condensing the refrigerant introduced from the compressor by outside air, and a narrow diameter compared to the diameter of other parts. It consists of an expansion valve for reducing the refrigerant introduced from the condenser, and the evaporator which absorbs the heat in the refrigerator as the refrigerant passing through the expansion valve in a low pressure state as a basic component constitutes a refrigeration cycle.

Hereinafter, a structure and an operation of a general refrigerator will be described with reference to the accompanying drawings.

First, as shown in FIG. 1A, the refrigerator includes a freezer compartment 1 in which cold air heat exchanged by the evaporator 3 is directly introduced to maintain an internal temperature of about −18 ° C., and cold air in the freezer compartment is introduced. Largely divided into a refrigerating chamber that maintains an internal temperature of about 0 ~ 7 ℃, the machine room 5 is provided under the back of the freezing chamber.

In addition, an upper part of the evaporator (3) is provided with a blowing fan (6) for forcibly circulating the cold air cooled through the evaporator to the freezing chamber (1) and a motor for driving the blowing fan, the freezing chamber in front of the evaporator The cold air duct 10 is formed by the inner plate 7 partitioning the inner space of the refrigerator and the space in which the evaporator is installed. In addition, a plurality of cold air outlets 11 are formed in the inner plate 7 to communicate with the freezer compartment, and a cold air inlet through which the hot air is introduced into the evaporator 3 while circulating the freezer compartment at the lower end of the cold air duct 10. (13) is formed.

As shown in FIG. 1B, a refrigerating compartment 2 partitioned from the freezing compartment by a barrier 3 is provided at one side of the freezing compartment 1, and cold air discharged into the freezing compartment above and below the barrier 3 is provided. Some of the cold air communication port (3a) is discharged to the refrigerating chamber and the cold air communication port (3b) is formed to circulate the refrigerating chamber (2) to the high temperature cold air flows back into the freezing chamber (1).

The refrigerator configured as described above is operated by receiving a control signal from a controller (not shown) in the freezer compartment 1 and the refrigerating compartment 2 while supplying power in a state in which food is filled in the freezer compartment 1 and the refrigerating compartment 2. In (3), a heat exchange environment is created. Therefore, the cold air passing through the evaporator is lowered by the endothermic action, and is discharged to the cold air duct 10 by the operation of the blower fan 6. Subsequently, the cold air flows into the freezing chamber 1 through the cold air discharge port 11, and some of the cold air flows into the cold storage chamber 2 through the cold air communication port 3a. Thereafter, the cold air that has been heated while circulating the freezing compartment and the refrigerating compartment has a cold air circulation structure introduced into the evaporator 3 through the suction port 13 again.

That is, the refrigerator as described above has a structure in which some of the cold air heat exchanged through the evaporator 3 is introduced into the refrigerating chamber 2 via the freezing chamber 1. In this case, even though the set temperature of the refrigerating compartment is higher than that of the freezing compartment, the cooling efficiency of the refrigerating compartment is inferior due to the small amount of cold air.

In addition, as the cold air in the freezer compartment 1 and the refrigerating compartment 2 are interchanged with each other, the problem that the smell of food stored in the refrigerator interferes with each other. In general, the refrigerated object accommodated in the refrigerating chamber is a concentration of the smell is higher than the refrigeration object, the smell of such a refrigerated object is introduced into the freezing chamber to be incorporated into the freezing object.

In order to solve this problem, a refrigerator having a cold air duct of a freezer compartment and a cold air duct of a refrigerating compartment is separated from each other, and each of the cold air ducts has a separate evaporator.

However, in this case, as well as the burden of the cost of having two expensive evaporators, as well as the structure of the refrigeration cycle is complicated, the cost of the refrigerator increases.

The present invention has been made to solve the above problems, an object of the present invention is to provide an independent cooling refrigerator that can be independently cooled by separating the cold air flow path of the refrigerating compartment and the cold air flow path of the freezing compartment, respectively, even though one evaporator is provided. It is.

Figure 1a and 1b is a longitudinal cross-sectional view showing the structure and operation of a typical refrigerator

Figure 2 is a schematic view showing the structure of an independent cooling refrigerator according to the present invention

3 is a longitudinal sectional view showing the structure and operation of an independent cooling refrigerator according to a first embodiment of the present invention;

Figure 4 is a longitudinal cross-sectional view showing the structure and operation of the independent cooling refrigerator according to the second embodiment of the present invention.

5 is a longitudinal sectional view showing the structure and operation of an independent cooling refrigerator according to a third embodiment of the present invention;

Figure 6a is a cross-sectional view showing the structure of an independent cooling refrigerator according to a fourth embodiment of the present invention

6B is a front view and a side view showing the operation of the independent cooling refrigerator according to the fourth embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

1: freezer 2: cold storage room

3: Barrier 10: Freezing chamber side cold air duct

20: refrigeration chamber side cold air duct 30: evaporator

40: heat transfer means 41: plate member

43: pin-shaped member

In order to achieve the above object, the independent refrigeration refrigerator according to the present invention is an evaporator in which a freezer compartment side cold air duct, a refrigerating compartment side cold air duct partitioned from the freezer compartment side cold air duct, and the freezer compartment side cold air duct are heat exchanged. And heat transfer means for receiving heat by convection or conduction from the evaporator and for exchanging cold air in the refrigerating compartment and the cold air duct in the freezer compartment and the cold air duct of the refrigerating compartment, respectively, and forcibly inhaling cold air in the refrigerator by the evaporator or the heat transfer means. And a blowing fan for discharging.

Therefore, the independent refrigeration refrigerator according to the present invention, as the cold air circulating the freezer compartment is heat-exchanged by the evaporator and the cold air circulating the refrigerating compartment is heat-exchanged by the heat transfer means, even though one evaporator is provided independently of the freezer compartment and the refrigerating compartment Can be cooled.

Hereinafter, an independent cooling refrigerator according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First, FIG. 2 is a configuration diagram schematically showing a structure of an independent cooling refrigerator according to the present invention. The independent cooling refrigerator according to the present invention has a freezing chamber side cold air duct forming a flow path through which cold air circulating in the freezing chamber 1 is heat exchanged. 10) and a refrigerating compartment side cold air duct 20 which is partitioned with the freezing compartment side cold air duct and forms a flow path through which cold air circulating in the refrigerating compartment 2 is heat-exchanged. At this time, the freezing chamber 1 and the refrigerating chamber 2 are partitioned thermally and at the same time the flow of cold air is partitioned by the barrier 3 which is a heat insulating material.

The freezer compartment side cold air duct 10 is provided with an evaporator 30 constituting a refrigeration cycle, the heat transfer means 40 for heat-exchanging cold air circulating the refrigerating compartment 2 receives heat from the evaporator is a freezer compartment side cold air. It is provided across the duct 10 and the refrigerator compartment side cold air duct 20. That is, one end of the heat transfer means 40 is located in the freezer compartment side cold air duct around the barrier 3 and the other end is located in the cold compartment side cold air duct.

At this time, the heat transfer means 40 is composed of a plate-like member 41 adjacent to one surface of the evaporator 30, and a plurality of fin-like member 43 protruding from the plate-like member to the refrigerator compartment side cold air duct (20). . That is, the plate member 41 is a member located in the freezer compartment side cold air duct 10 and receiving heat from the evaporator 30 by convection of cold air. Therefore, since the evaporator 30 is generally a fin-tube type, the plate member 41 is preferably provided along the longitudinal direction in a direction facing the fin of the evaporator.

And the pin-shaped member 43 serves to transfer the heat transferred to the plate-like member to the cold room side cold air duct (20) by conduction. At this time, the number of the fin-shaped members is better in terms of heat exchange efficiency.

On the other hand, the plate member 41 may be provided to contact one surface of the evaporator (30). In this case, the plate member receives heat by conduction by direct contact with the evaporator.

On the other hand, in terms of heat transfer efficiency, the heat transfer means 40 is preferably made of a metal having high thermal conductivity. Thus, it is suggested that the heat transfer means 40 is made of any one of copper, aluminum, and iron having high thermal conductivity.

In the independent cooling refrigerator configured as described above, an axial fan or a crossflow fan is applied as a blower fan according to the structure of the freezing chamber side cold air duct and the refrigerating chamber side cold air duct, that is, the cold air circulating structure. Various embodiments are therefore presented below. In this case, the crossflow fan is preferably composed of a sirocco fan.

First, Figure 3 is a longitudinal cross-sectional view showing the structure and operation of the independent cooling refrigerator according to the first embodiment of the present invention.

As shown in FIG. 3, the independent cooling refrigerator according to the first embodiment of the present invention includes a freezing compartment 1 on the left side and a refrigerating compartment 2 on the right side of the drawing, centering on the barrier 3. A freezer compartment side cold air duct 10 is provided on the left side of the barrier and a cold compartment side cold air duct 20 is provided on the right side of the barrier.

At this time, the refrigerating compartment side cold air duct 20 extends from the right side of the barrier 3 to the upper surface of the refrigerating compartment 2.

The freezer compartment side cold air duct 10 is provided with an evaporator 30 constituting a refrigeration cycle, and a heat transfer means 40 is provided across the freezer compartment side cold air duct and the refrigerating compartment side cold air duct. At this time, the heat transfer means 40 is a plate-like member 41 which is provided adjacent to the evaporator in the freezer compartment cold air duct as described above, and a fin-like member extending through the barrier from the plate-like member to the cold air chamber duct ( 43).

In addition, a cold air suction port 13 and a cold air discharge port 11 through which cold air of the freezing chamber 1 is sucked and discharged are formed in the lower and upper portions of the freezing chamber side cold air duct 10, respectively. A cold air intake port 23 through which cold air of the refrigerating compartment 2 is sucked is formed at a lower side of the side surface of the refrigerating chamber side cold air duct 20, and a cold air discharge port 21 through which cold air heat-exchanged is discharged.

On the other hand, the freezer compartment side cold air duct 10 is provided along the left side of the barrier 3, at the upper predetermined position of the evaporator 30 for forced circulation of cold air, specifically parallel to the cold air outlet 11 An axial fan 60 is provided at the position. And the refrigerator compartment side cold air duct 20 is provided from the right side of the barrier to the upper surface of the refrigerating chamber, the cross flow fan 50 is provided in the portion where the cold air duct is bent from the side to the upper surface for forced circulation of cold air. . Therefore, the cold air heat exchanged through the evaporator 30 is discharged from the side surface of the freezing chamber 1, and the cold air heat exchanged through the heat transfer means 40 is discharged from the upper surface of the refrigerating chamber 2.

In the independent cooling refrigerator configured as described above, when the heat exchange environment is formed in the evaporator 30 by the operation of the compressor, the axial flow fan 60 and the crossflow fan 50 are operated to circulate cold air in the refrigerator. At this time, the cold air circulating in the freezer compartment 1 flows into the freezer compartment side cold air duct 10 through the cold air inlet 13 and heat exchanges through the evaporator 30, and then passes through the cold air outlet 11 to the freezer compartment. The cycle of discharge is repeated.

At this time, some of the cold air passing through the freezer compartment side cold air duct 10 passes between the evaporator 30 and the plate member 41 of the heat transfer means to transfer heat of the evaporator to the plate member. The heat of the plate member thus transferred is conducted to the pin member (43).

On the other hand, the cold air circulating in the refrigerating compartment 2 is introduced into the refrigerating compartment side cold air duct 20 through the cold air inlet 23 by the operation of the crossflow fan 50, and subsequently passes through the fin-shaped member 43 of the heat transfer means. Heat exchange. The cold air heat-exchanged in this way moves to the cold air duct on the upper surface of the refrigerating chamber by the operation of the cross flow fan, and repeats the circulation process discharged to the refrigerating chamber 2 through the cold air discharge port 21.

Therefore, the independent cooling refrigerator according to the above-described embodiment can sufficiently cool the freezing compartment and the refrigerating compartment independently by using only one evaporator, and according to the refrigerating chamber-side cold air duct, a separate cross flow fan is provided for the air volume of the cold air circulating in the refrigerating compartment. Can be increased.

Next, FIG. 4 is a longitudinal sectional view showing the structure and operation of the independent cooling refrigerator according to the second embodiment of the present invention. The independent cooling refrigerator according to the second embodiment of the present invention has a left side in the drawing, centering on the barrier 3. The freezer compartment 1 is provided in the refrigerator compartment 2 is provided on the right side, the freezer compartment side cold air duct 110 is provided on the left side of the barrier and the refrigerating compartment side cold air duct 120 is provided on the right side.

At this time, the freezer compartment side cold air duct 110 is formed extending from the left side of the barrier (3) to the upper surface of the freezer compartment (1).

Therefore, the cold air inlet 113 of the freezer compartment side cold air duct 110 is provided on the lower side of the freezer compartment and the cold air outlet 111 is formed on the upper surface of the freezer compartment. The cold air suction port 123 and the cold air discharge port 121 of the refrigerating compartment side cold air duct 120 are formed at the lower and upper portions of the refrigerating compartment, respectively.

The freezer compartment side cold air duct 110 is provided with an evaporator 30 constituting a refrigeration cycle, and the fin member 43 of the heat transfer means is provided in the freezer compartment side cold air duct in the refrigerating compartment side cold air duct 120. It is provided through the barrier from 41.

On the other hand, the freezer compartment side cold air duct 110 is provided from the left side of the barrier 3 to the upper surface of the freezer compartment 1, the cold air duct is bent from the side to the top surface for forced circulation of cold air The cross flow fan 50 is provided. In addition, the refrigerating chamber-side cold air duct 120 is provided along the right side surface of the barrier, in order to circulate cold air at an upper predetermined position of the heat transfer means, in particular, in a position parallel to the cold air outlet 121. Is provided. Therefore, the cold air heat exchanged through the evaporator 30 is discharged from the upper surface of the freezer compartment 1, and the cold air heat exchanged through the heat transfer means is discharged from the upper side of the refrigerating compartment 2.

The independent cooling refrigerator configured as described above has the same function as the independent cooling refrigerator of FIG. 3, but the cold air circulation structure of the freezer compartment and the refrigerating compartment is different. That is, since the freezer compartment side cold air duct 110 extends from the left side of the barrier 3 to the top side of the freezer compartment 1, the heat exchanged cold air passing through the evaporator 30 is discharged from the top side of the freezer compartment. Since the cold air duct 120 is provided on the right side of the barrier, the cold air that has been heat-exchanged while passing through the heat transfer means is discharged from the upper side of the side of the refrigerating compartment 2.

Next, FIG. 5 is a longitudinal sectional view showing the structure and operation of the independent cooling refrigerator according to the third embodiment of the present invention. The independent cooling refrigerator according to the third embodiment of the present invention has a left side in the drawing with respect to the barrier 3. A freezer compartment (1) is provided in the refrigerating chamber (2) is provided on the right side, the freezer compartment side cold air duct 210 is provided on the left side of the barrier and the refrigerating compartment side cold air duct 220 is provided on the right side.

In this case, the freezing compartment side cold air duct 210 and the refrigerating compartment side cold air duct 220 are formed to extend from the side of the barrier 3 to the upper surface of the freezing compartment 1 or the refrigerating compartment 2, respectively.

Accordingly, the cold air outlet 211 of the freezer compartment side cold air duct and the cold air outlet 221 of the cold compartment side cold air duct are formed on the upper surface of the freezer compartment 1 and the upper surface of the refrigerating compartment 2, respectively. The cold air suction port 213 and the cold air suction port 223 of the refrigerating chamber side cold air duct are formed in the lower side of the freezer compartment 1 and the lower side of the refrigerating compartment 2, respectively.

The freezer compartment side cold air duct 210 is provided with an evaporator 30 constituting a refrigerating cycle, and the plate-like member 43 of the heat transfer means is provided in the freezer compartment side cold air duct in the refrigerating compartment side cold air duct 220. It is provided through the barrier 3 from the member 41.

Meanwhile, the freezing compartment side cold air duct 210 and the refrigerating compartment side cold air duct 220 are provided on the upper surface of the freezing compartment 1 and the upper surface of the refrigerating compartment 2 from the side of the barrier 3, respectively. The cross flow fan 50 is provided at a portion where the cold air duct is bent from the side to the upper surface for forced circulation. Therefore, the cold air heat exchanged through the evaporator 30 is discharged from the upper surface of the freezer compartment 1, and the cold air heat exchanged through the heat transfer means is also discharged from the upper surface of the refrigerating compartment 2.

The independent cooling refrigerator configured as described above has the same function as the independent cooling refrigerator of FIG. 3, but the cold air circulation structure of the freezer compartment and the refrigerating compartment is different, and the difference is that the heat-exchanged cold air is different from the upper surface of the freezer compartment 1, respectively. It is discharged from the upper surface of the refrigerating chamber (2).

Next, Figure 6a is a cross-sectional view showing a structure of an independent cooling refrigerator according to a fourth embodiment of the present invention, Figure 6b is a front view and a side view showing the operation of the independent cooling refrigerator according to the fourth embodiment of the present invention.

As shown in Figure 6a, the independent cooling refrigerator according to the fourth embodiment of the present invention is provided with a freezer compartment (1) on the left side and a refrigerating compartment (2) on the right side of the drawing with respect to the barrier (3), The freezer compartment side cold air duct 310 is provided on the rear side of the freezer compartment and the cold compartment side cold air duct 320 is provided on the rear side of the refrigerator compartment.

The freezer compartment side cold air duct 310 is provided with an evaporator 30 constituting a freezing cycle, and the heat transfer means 140 is provided across the freezer compartment side cold air duct and the refrigerating compartment side cold air duct 320. At this time, one end of the heat transfer means 140 is provided in the freezer compartment side cold air duct 310 adjacent to the evaporator 30 and the other end is provided in the refrigerating compartment side cold air duct 320 through the barrier (3). A member 141 and a plurality of pin-shaped members 143 extending from the plate member. In this case, as the evaporator 30 and the plate member 141 are provided side by side, the area capable of heat transfer is formed to be narrower than the above-described embodiment. Therefore, the plate-shaped member 141 provided in the freezer compartment side cold air duct 310 is bent to secure the maximum area facing the evaporator 30, and the plurality of pin-shaped members 141 also extend in the freezer compartment side cold air duct. This is preferred. That is, since the cold air passing through the freezer compartment side cold air duct 310 is relatively low even before it is heat exchanged, heat can be transferred by providing a plurality of fin-shaped members 143 in the freezer compartment side cold air duct.

Meanwhile, the freezing compartment side cold air duct 310 and the refrigerating compartment side cold air duct 320 are provided at the rear of the freezing compartment 1 and the refrigerating compartment 2, respectively, and the upper part of the evaporator 30 and the heat transfer for forced circulation of cold air. An axial fan 60 is provided on top of the means 140, respectively.

As shown in FIG. 6B, the cold air inlet 313 of the freezer compartment side cold air duct and the cold air inlet 323 of the cold compartment side cold air duct are respectively formed at the bottom of the rear of the freezer compartment 1 and the bottom of the rear side of the refrigerator compartment 2. The cold air outlet 311 of the freezer compartment side cold air duct and the cold air outlet 321 of the cold compartment side cold air duct are respectively formed on the upper rear side of the freezer compartment and the rear upper side of the refrigerating compartment.

The independent cooling refrigerator configured as described above has the same function as the independent cooling refrigerator of FIG. 3, but the cold air circulation structure of the freezer compartment and the refrigerating compartment is different. That is, the freezer compartment side cold air duct 310 and the refrigerating compartment side cold air duct 320 are provided at the rear of the freezer compartment 1 and the refrigerating compartment 2, respectively, and the cold air exchanged through the evaporator 30 is freezer compartment 1. Is discharged from the upper rear side of the, the cold air heat exchanged through the heat transfer means 140 is also discharged from the rear upper portion of the refrigerating chamber (2).

So far, the present invention has been described with reference to preferred embodiments thereof, and one of ordinary skill in the art to which the present invention pertains may implement the modified embodiment within the essential technical scope of the present invention. Here, the essential technical scope of the present invention is shown in the claims, and the modified forms within the equivalent range will be construed as being included in the present invention.

Independent cooling refrigerator according to the present invention provides the following effects.

First, according to the present invention, by separately separating the cold air passage circulating the freezer compartment and the refrigerating compartment, it is possible to prevent the smell of food stored in the freezer compartment and the refrigerating compartment to interfere with each other.

Second, according to the present invention, by providing a blower fan in the freezing compartment side cold air duct and the refrigerating compartment side cold air duct, respectively, the amount of cold air in the refrigerating compartment can be increased, thereby improving cooling efficiency.

Third, according to the present invention, even though one evaporator is used, independent cooling is performed by using heat transfer means that receives heat from the evaporator and heat exchanges the cold air, thereby avoiding the addition of an evaporator for independent cooling or a complicated refrigeration cycle structure. Can reduce the unit cost.

Claims (10)

Freezer duct cold air duct; A refrigerator compartment side cold air duct partitioned from the freezer compartment side cold air duct; An evaporator provided in the freezing compartment side cold air duct to heat exchange the freezing compartment side cold air; Heat transfer means for receiving heat from the evaporator and transferring the cold air flowing in the refrigerating chamber side cold air duct to heat exchange the cold storage side cold air; And a blower fan provided in the freezing compartment side cold air duct and the refrigerating compartment side cold air duct, respectively, forcibly sucking and discharging cold air in the refrigerator by an evaporator or a heat transfer means. The method of claim 1, The heat transfer means is an independent cooling refrigerator, characterized in that provided across the freezer compartment side cold air duct and the cold compartment side cold air duct. The method of claim 2, The heat transfer means comprises a plate-shaped member adjacent to one surface of the evaporator, and a plurality of fin-shaped member to be discharged from the plate-shaped member to the cold air chamber side cold air duct. The method of claim 3, wherein Independent cooling refrigerator, characterized in that the plate-like member and the evaporator contact each other. The method of claim 1, The heat transfer means is an independent cooling refrigerator, characterized in that made of any one of high thermal conductivity copper, aluminum, iron. The method of claim 1, The blowing fan is an independent cooling refrigerator, characterized in that the axial flow fan or cross flow fan. A barrier partitioning the freezer compartment and the refrigerating compartment from side to side; A freezer compartment cold air duct provided on one side of the barrier; A refrigerator compartment side cold air duct provided on the other side of the barrier and an upper surface of the refrigerator compartment; An evaporator provided in the freezing compartment side cold air duct to heat exchange cold air circulating in the freezing compartment; A cold air circulating in the refrigerating compartment by receiving heat from convection and conduction from the evaporator, including a plate member provided adjacent to the evaporator in the freezer compartment side cold air duct and protruding from the plate member to the cold side duct. Heat transfer means for exchanging heat; An axial fan provided on an evaporator of the freezing chamber side cold air duct to discharge cold air from an upper side of the freezing compartment; And a cross-flow fan provided at the bent portion of the refrigerating compartment side cold air duct to discharge cold air from the upper surface of the refrigerating compartment. A barrier partitioning the freezer compartment and the refrigerating compartment from side to side; A freezing compartment side cold air duct provided over one side of the barrier and an upper surface of the freezing compartment; A refrigerator compartment side cold air duct provided on the other side of the barrier; An evaporator provided in the freezing compartment side cold air duct to heat exchange cold air circulating in the freezing compartment; A cold air circulating in the refrigerating compartment by receiving heat from convection and conduction from the evaporator, including a plate member provided adjacent to the evaporator in the freezer compartment side cold air duct and protruding from the plate member to the cold side duct. Heat transfer means for exchanging heat; A cross flow fan provided at a bent portion of the freezing compartment side cold air duct to discharge cold air from an upper surface of the freezing compartment; And an axial fan provided above the heat transfer means of the cold air duct of the refrigerating compartment and discharging cold air from the upper side of the refrigerating compartment. A barrier partitioning the freezer compartment and the refrigerating compartment from side to side; A freezing compartment side cold air duct provided over one side of the barrier and an upper surface of the freezing compartment; A refrigerator compartment side cold air duct provided on the other side of the barrier and an upper surface of the refrigerator compartment; An evaporator provided in the freezing compartment side cold air duct to heat exchange cold air circulating in the freezing compartment; A cold air circulating in the refrigerating compartment by receiving heat from convection and conduction from the evaporator, including a plate member provided adjacent to the evaporator in the freezer compartment side cold air duct and protruding from the plate member to the cold side duct. Heat transfer means for exchanging heat; A cross flow fan provided at a bent portion of the freezing compartment side cold air duct to discharge cold air from an upper surface of the freezing compartment; And a cross-flow fan provided at the bent portion of the refrigerating compartment side cold air duct to discharge cold air from the upper surface of the refrigerating compartment. A freezer compartment and a refrigerating compartment partitioned left and right by a barrier; A freezer compartment side cold air duct provided at the rear of the freezer compartment; A refrigerator compartment side cold air duct provided at the rear of the refrigerator compartment; An evaporator provided in the freezing compartment side cold air duct to heat exchange cold air circulating in the freezing compartment; One end is provided in the freezing chamber side cold air duct adjacent to the evaporator and the other end includes a plate member provided in the refrigerator compartment side cold air duct and a pin member protruding from the plate member to receive heat from the evaporator by convection and conduction. Heat transfer means for heat-exchanging cold air circulating in the refrigerating compartment; An axial fan provided at an upper part of the evaporator of the cold air duct of the freezer compartment and discharging cold air from an upper rear side of the freezer compartment; And an axial fan provided above the heat transfer means of the cold air duct of the refrigerating compartment and discharging cold air from the upper rear side of the refrigerating compartment.