KR101694663B1 - Refrigerator - Google Patents

Abstract

A refrigerator according to an embodiment of the present invention includes a guide duct including a cabinet provided with a storage chamber and at least a portion of the guide duct extending from a rear surface of the storage chamber to a front surface, And the cool air to be supplied is discharged to the front of the storage chamber.

Description

Refrigerator {Refrigerator}

This embodiment relates to a refrigerator.

2. Description of the Related Art Generally, a refrigerator is a household appliance that allows food to be stored at a low temperature in an internal storage space that is shielded by a door. The refrigerator is stored by cooling the inside of the storage space using cool air generated through heat exchange with a refrigerant circulating in a refrigeration cycle It is configured to store foods in optimal condition.

Such a refrigerator is in a trend of becoming larger and multifunctional as the dietary life change and user 's taste are diversified, and it is being developed in various forms for the convenience of the user.

2. Description of the Related Art [0002] Recently, a refrigerator cabinet has a refrigerator compartment, a freezer compartment, a storage compartment for forming an independent space, and a refrigerator which can be used as a refrigerator compartment or a refrigerator compartment by controlling the temperature of the refrigerator. In addition, the storage chamber communicates with the freezing chamber or the heat exchange chamber to receive the cool air, and may be configured to discharge the cool air from the rear surface to the front side.

However, in the case of the storage room, when the refrigerator is used as a refrigerator room, the flow rate of cold air is reduced. When the length of the storage chamber is long in the front-rear direction, the cool air in the rear side is not moved to the front of the storage chamber due to an insufficient flow rate, and is sucked into the freezing chamber or the heat exchange chamber.

Particularly, the front surface where the door is located on the structure of the refrigerator is relatively vulnerable to adiabatic heat so that it is affected by the external temperature. Therefore, there is a problem that the temperature distribution inside the storage chamber becomes unbalanced and storage performance is lowered.

The object of the present invention is to provide a refrigerator which improves the storage performance by evenly distributing the temperature distribution inside the storage compartment.

According to an aspect of the present invention, there is provided a refrigerator comprising: an in-case; an out-case for accommodating the in-case; a cabinet cover for shielding an opened rear surface of the out- The cabinet cover, and the cabinet cover. In the cabinet, a cabinet in which a freezing chamber, a storage chamber formed above the freezing chamber, and a refrigerating chamber formed above the storage chamber are formed, ; A grill fan which divides the freezing chamber into a front and a rear space; A heat exchange chamber corresponding to the space on the rear side of the grill pan; An evaporator placed in the heat exchange chamber; An inlet of a heat exchange chamber and an outlet of a heat exchange chamber formed on a back surface of the phosphorus case defining a rear surface of the heat exchange chamber; A storage chamber inlet and a storage chamber outlet formed on the back surface of the phosphorus case defining a rear surface of the storage chamber; An inlet of a refrigerator compartment and an outlet of a refrigerator compartment formed on a back surface of the in-case case defining a rear surface of the refrigerating compartment; A supply duct assembly in which a plurality of cool air supply passages connecting the inlet of the heat exchange chamber and the inlet of the storage chamber and the inlet of the refrigerating chamber are defined in a module form; A suction duct assembly in which a plurality of cool air return channels connecting the storage chamber outlet, the refrigerating chamber outlet, and the heat exchange chamber outlet are defined in a module form; At least a portion of the guide duct extends from a rear surface of the storage chamber toward a front surface so that cool air supplied through the storage chamber inlet is directed toward the front of the storage chamber To be discharged.

According to the proposed embodiment, cool air is supplied to the inside of the storage chamber by the guide duct. The guide duct extends from a rear surface of the storage chamber to a front half portion, and cool air is discharged from a front end of the guide duct.

Therefore, the cold air guided from the heat exchange chamber is guided to the front of the storage chamber by the guide duct, and then supplied to the inside of the front half of the storage chamber. Accordingly, it is possible to effectively cool the inner front half of the storage compartment having a relatively high temperature, so that the temperature distribution inside the storage compartment can be made even.

In addition, the guide ducts are provided on both left and right sides of the storage chamber so that cool air can be uniformly supplied to both the left and right sides of the storage chamber. As a result, it is possible to effectively cool both the left and right sides as well as the first half of the storage chamber having a relatively high temperature.

In addition, the always guide duct is provided with a front discharge opening that opens forward and a downward discharge opening that opens downward, and is configured to be able to effectively cool the inside of the storage compartment by simultaneously discharging the refrigerant in front of and behind the discharge opening.

Accordingly, it is possible to improve the cooling efficiency in the storage chamber, and to have an even temperature distribution as a whole, thereby improving the storage performance of the storage chamber.

1 is a front view of a refrigerator according to the present embodiment.
2 is a perspective view of the refrigerator door and the storage compartment door of the refrigerator opened;
3 is a front view showing the interior of the storage chamber.
4 is an exploded perspective view showing a state in which the rear cover of the refrigerator is opened.
5 is an exploded perspective view showing the combination of the supply duct assembly and the suction duct assembly according to the present embodiment.
6 is an exploded perspective view showing the structure of the supply duct assembly.
7 is an exploded perspective view showing the structure of the suction duct assembly.
8 is a view showing a state in which the guide duct according to the present embodiment is mounted.
9 is a sectional view taken along line I-I 'of Fig.
10 is a perspective view of the guide duct as viewed from the front.
11 is a perspective view of the guide duct as seen from the rear side.
FIGS. 12 and 13 are diagrams schematically showing the overall circulation state of the refrigerator.
14 is a view schematically showing the circulation state of the cool air inside the storage chamber.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. It should be understood, however, that there is no intention to limit the scope of the present invention to the embodiment shown, and that other embodiments falling within the scope of the present invention may be easily devised by adding, Can be proposed.

1 is a front view of a refrigerator according to the present embodiment. FIG. 2 is a perspective view of the refrigerator door and the storage compartment door of the refrigerator. FIG.

Referring to FIGS. 1 and 2, the refrigerator 1 according to the present embodiment is formed in an outer shape by a cabinet 10 and a door.

The cabinet 10 forms a storage space therein and is divided into upper and lower spaces to form a refrigerating chamber 20, a freezing chamber 30, and a storage chamber 100, respectively. The refrigerating chamber 20 is formed on the upper portion of the cabinet 10 and the storage chamber 100 and the freezing chamber 30 are formed in order below the refrigerating chamber 20.

The refrigerating compartment 20, the storage compartment 100, and the freezing compartment 30 are formed as separate spaces separated from each other. The refrigerating compartment 20, the storage compartment 100, and the freezing compartment 30 may be divided into a plurality of spaces as required. Meanwhile, a plurality of receiving members for storing food may be provided in the refrigerating compartment 20, the storage compartment 100, and the freezing compartment 30.

The door opens and closes the opened front of the refrigerating compartment 20 and the storage compartment 100 and the freezing compartment 30 and may include a refrigerator compartment door 22, a storage compartment door 110 and a freezing compartment door 32 . The door may be configured to be pivotable or retractable depending on the opening and closing of the refrigerator compartment 20, the storage compartment 100, and the freezer compartment 30.

When the refrigerator compartment 20, the storage compartment 100, and the freezer compartment 30 are partitioned into a plurality of spaces, the doors may be formed in corresponding numbers and may be configured to open and close the refrigerators. And may be configured to open and close the space.

For example, the refrigerator compartment door 22 is provided on both left and right sides and is configured to open and close the refrigerator compartment 20 by rotation. The storage room door 110 and the freezer compartment door 32 may be configured so that the storage room 100 and the freezer compartment 30 corresponding to the storage room door 110 and the freezer compartment door 30 can be slidingly drawn in and out and individually opened and closed.

The storage room door 110 and the freezing compartment door 32 are formed in a drawer so that a basket for storing the compartment can be integrally provided on the rear surface of the storage room door 110 and the freezing room door 32. Therefore, the basket may be taken out together with the opening and closing of the storage chamber door 110 and the freezing chamber door 32. A separate storage container may be provided in the basket or inside the storage compartment 100 and the freezing compartment 30.

3 is a front view showing the interior of the storage chamber.

Referring to FIG. 3, the storage compartment 100 is formed with a front opening. The refrigerator compartment 20 and the freezer compartment 30 are formed above and below the storage compartment 100, respectively.

A guide duct 500 is provided inside the storage chamber 100. The guide duct 500 is configured to guide the cool air supplied from the heat exchange chamber 400 to the inner side of the storage chamber 100.

The guide duct 500 is installed on the inner rear surface and the upper surface of the storage chamber 100 and extends forward from the rear of the storage chamber 100. The first guide part 520 and the second guide part 530 are formed on both sides of the left and right sides of the storage compartment 100. The first guide part 520 and the second guide part 530, (530). ≪ / RTI >

A temperature sensor 570 is provided at the center of the extension 510. The temperature sensor 570 senses the internal temperature of the storage chamber 100 and is connected to the control unit to control the opening and closing of the damper 540, which will be described below.

A storage chamber outlet 104 is formed at the bottom of the rear surface. The storage chamber outlet 104 is connected to the storage chamber suction duct 330 described below. Cool air in the storage compartment 100 can be sucked into the heat exchange chamber 400 through the storage compartment outlet 104.

The left and right side surfaces of the storage compartment 100 are further provided with a rail mounting part 120 on which a rail member for guiding the sliding draw-out of the storage compartment door 110 is mounted.

4 is an exploded perspective view showing a state in which the rear cover of the refrigerator is opened. 5 is an exploded perspective view showing the combination of the supply duct assembly and the suction duct assembly according to the present embodiment.

4 and 5, the cabinet 10 includes an outer case 12 forming an outer shape and a case 14 disposed inside the outer case 12. The in-case 14 forms the refrigerating compartment 20, the storage compartment 100 and the freezing compartment 30. Between the out-case 12 and the in-case 14, foam insulation is filled.

The inlet case 14 forms a heat exchange chamber 400 having an evaporator 410 generating cold air. The heat exchange chamber 400 is formed behind the freezing chamber 30 and can be partitioned from the freezing chamber 30 by a grill pan 420 described below.

The rear surface of the cabinet 10 is formed by a cabinet cover 16 and a machine room cover 18. [ The machine room cover 18 is configured to shield the machine room 40 below the cabinet 10 and the cabinet cover 16 is mounted on the cabinet 10 except for the portion to be shielded by the machine room cover 18. [ And is configured to shield the rest of the back surface.

The cabinet cover 16 is formed with a mounting hole 17 through which a printed circuit board is mounted. The printed circuit board forms a control unit for controlling the operation of electric components constituting the refrigerator 1 and the refrigerator 1 and is configured to be exposed through the mounting hole 17. [

A supply duct assembly 200 for circulating cool air between the heat exchange chamber 400 and the refrigerating compartment 20 and the storage compartment 100 and a suction duct assembly 200 for circulating cool air are provided between the case 14 and the cabinet cover 16, (300). The supply duct assembly 200 and the suction duct assembly 300 are provided behind the refrigerating chamber 20 and the storage chamber 100 and the heat exchange chamber 400 and are embedded in the heat insulating material filled in the cabinet 10, do.

The supply duct assembly 200 and the suction duct assembly 300 may be separately formed. The suction duct assembly 300 may be disposed at a lateral center of the suction case 14 and the supply duct assembly 200 may be disposed at a side of the suction duct assembly 300.

6 is an exploded perspective view showing the structure of the supply duct assembly.

5 and 6, the supply duct assembly 200 includes the heat exchange chamber inlet 402, the refrigerating compartment inlet 24, and the storage compartment inlet 102, Respectively. Therefore, the cool air in the heat exchange chamber 400 can be guided to the refrigerator compartment 20 and the storage compartment 100 through the supply duct assembly 200.

In detail, the supply duct assembly 200 includes a supply duct connection part 210, a supply flow path part 220, a refrigerated chamber side supply part 240, and a storage chamber side supply part 230.

The supply duct connection part 210 is fixedly mounted on the rear surface of the heat exchange chamber 400 and is formed to be able to communicate with the heat exchange chamber inlet 402. The supply duct connecting portion 210 is formed with a supply flow passage 220.

The inside of the supply passage 220 is partitioned by a plurality of partition plates 222 so that the inside of the supply passage 220 is branched. Therefore, the cold air flowing along the supply passage 220 can be independently supplied to the refrigerating chamber side supply unit 240 and the storage chamber side supply unit 230. A plurality of the partition plates 222 are formed to prevent deformation of the supply passage 220 when the heat insulating material is foamed.

A storage chamber side supply unit 230 is mounted on the upper end of the supply channel unit 220. The storage chamber side supply unit 230 is fixedly mounted on the back surface of the storage chamber 100. The storage chamber side supply part 230 communicates with the storage chamber inlet 102. The storage chamber side supply unit 230 has a shape corresponding to the bottom surface and top edge of the storage chamber 100.

Meanwhile, the inside of the storage chamber feeder 230 may be partitioned. Therefore, some of the cool air flowing into the storage chamber side supply unit 230 may be supplied to the storage chamber 100, and some of the cool air may be supplied to the refrigerator chamber 20 through the refrigeration chamber side supply unit 240.

Therefore, the refrigerator-side supply unit 240 is provided on the storage-chamber-side supply unit 230. The refrigerating chamber side supply part 240 communicates with the storage chamber side supply part 230 and the upper end of the refrigerating chamber side supply part 240 is fixedly mounted on the back surface of the refrigerating chamber 20. The refrigerating chamber side supply portion 240 communicates with the refrigerating chamber outlet 26 so that the cool air of the heat exchange chamber 400 can be supplied to the refrigerating chamber 20. The upper end of the refrigerating chamber side supply part 240 is formed to have a shape corresponding to the backside and bottom edge of the refrigerating chamber 20.

The storage room side supply part 230 and the refrigerating room side supply part 240 may be formed as one member and the interior of the refrigerating room side supply part 230 may be branched so as to supply cold air to the refrigerating room 20 and the storage room 100 .

Meanwhile, dampers 232 and 242 may be provided on the storage chamber side supply unit 230 and the refrigerated chamber side supply unit 240. Accordingly, the dampers 232 and 242 can be opened or closed by a user's operation or setting, and the cooling of the storage compartment 100 and the refrigerating compartment 20 can be controlled by controlling the flow of cool air by opening and closing the dampers 232 and 242 .

7 is an exploded perspective view showing the structure of the suction duct assembly.

5 and 7, the suction duct assembly 300 includes the refrigerating compartment outlet 26 and the storage compartment outlet 104 and the heat exchanging compartment outlet 404 . Therefore, air in the refrigerating compartment 20 and the storage compartment 100 can be guided to the heat exchange chamber 400 through the suction duct assembly 300.

In detail, the suction duct assembly 300 may include a refrigerating chamber suction duct 320, a storage chamber suction duct 330, and a suction duct connection portion 310.

The suction duct connecting portion 310 is connected to the lower end of the refrigerating chamber suction duct 320 and the storage chamber suction duct 330 and is connected to the heat exchange chamber outlet 404. Therefore, the cold air introduced from the refrigerating chamber suction duct 320 and the storage chamber suction duct 330 is guided to be supplied to the heat exchange chamber 400.

Of course, the suction duct connecting part 310 may not be provided if necessary, and the refrigerating room suction duct 320 and the storage room suction duct 330 may be directly connected to the heat exchange room outlet 404.

The refrigerating chamber suction duct 320 communicates the refrigerating chamber 20 and the heat exchange chamber 400 and guides the cool air of the refrigerating chamber 20 to the heat exchange chamber 400. The refrigerating chamber suction duct 320 may include a refrigerating chamber flow path portion 322 and a refrigerating chamber connecting portion 324.

The refrigerating chamber flow path portion 322 may be formed in a tubular shape and the lower end thereof may be connected to the suction duct connecting portion 310 and the upper end thereof may be connected to the refrigerating chamber connecting portion 324. The refrigerating compartment connecting portion 324 may communicate with the refrigerating compartment inlet 24 and may have a shape corresponding to the bottom and bottom edges of the refrigerating compartment 20.

Meanwhile, the storage chamber suction duct 330 is separately provided at the side of the refrigerating chamber suction duct 320. The storage chamber suction duct 330 communicates the storage chamber 100 with the heat exchange chamber 400 and guides the cool air of the storage chamber 100 to the heat exchange chamber 400. The storage chamber suction duct 330 may include a storage chamber channel portion 332 and a storage chamber connection portion 334.

The storage chamber channel portion 332 is formed in a tubular shape and the lower end thereof is connected to the suction duct connection portion 310 and the upper end thereof is connected to the storage chamber connection portion 334. The storage chamber connection portion 334 may communicate with the storage chamber outlet 104 and may have a corresponding shape so as to be seated at the bottom and bottom edges of the storage chamber 100.

8 is a view showing a state in which the guide duct according to the present embodiment is mounted. 9 is a sectional view taken along line I-I 'of Fig. 10 is a perspective view of the guide duct as viewed from the front. 11 is a perspective view of the guide duct as seen from the rear side.

Referring to FIGS. 8 to 11, the guide duct 500 is mounted on an inner rear wall surface and an upper surface of the storage chamber 100. The guide duct 500 is formed to have a space in which the cool air can flow when the guide duct 500 is installed in the storage room 100. The guide duct 500 extends from the rear wall of the storage compartment 100 to the first half of the storage compartment 100 to guide the cool air to the first half of the storage compartment 100.

The guide duct 500 may include an extension 510, a first guide 520, and a second guide 530. The guide duct 500 may include a first guide part 520 and a second guide part 530.

The extension 510 is mounted on the rear wall of the storage compartment 100 and is elongated in the transverse direction. In addition, the extension 510 is opened rearward to form a flow path of cool air when installed in the storage chamber 100. In addition, the extension 510 is mounted to communicate with the storage compartment inlet 102. Therefore, the cool air introduced through the storage chamber inlet 102 can flow along the extension portion 510.

A damper 540 may be provided on the inside of the storage chamber inlet 102 or the guide duct 500 and a cool air introduced into the guide duct 500 by opening and closing the damper 540 Becomes adjustable.

The first guide part 520 and the second guide part 530 are respectively provided on both left and right ends of the extension part 510, respectively. The first guide part 520 and the second guide part 530 are formed to guide the cool air moving through the extended part 510 forward. The first guide part 520 and the second guide part 530 are formed to open on the upper surface of the storage chamber 100 to form a coolant flow path when mounted on the storage chamber 100.

The first guide part 520 and the second guide part 530 extend forward of the storage compartment 100. At this time, the first guide part 520 and the second guide part 530 may protrude at least more than the center of the storage compartment 100.

The first guide portion 520 is positioned on the right side in FIG. At this time, the first guide unit 520 is formed at a position corresponding to the storage chamber inlet 102, so that the cool air discharged from the storage chamber inlet 102 can be moved forward through the first guide unit 520 .

On the other hand, the second guide portion 530 is positioned on the left side in FIG. Therefore, the cool air introduced through the storage chamber inlet 102 is moved along the extension portion 510 and then moved forward along the second guide portion 530.

The second guide portion 530 has a longer cooler flow path than the first guide portion 520 so that the inner cross sectional area of the second guide portion 530 is larger than the inner cross sectional area of the first guide portion 520 Can be formed larger.

A plurality of discharge ports are formed in the first half of the first guide part 520 and the second half of the guide part 530. The discharge port is configured to discharge cold air guided through the first guide part 520 and the second guide part 530 to the inside of the storage compartment 100 and includes a front discharge port 550 and a lower discharge port 560 .

The front discharge port 550 is formed to be opened at the front ends of the first guide part 520 and the second guide part 530. The front discharge port 550 is formed on an inclined front surface of the first guide part 520 and the second guide part 530 to discharge cold air forward. At this time. It can be discharged in a downwardly inclined direction by an inclined front angle.

In addition, a plurality of the downward discharge ports 560 are formed behind the front discharge port 550. The lower discharge port 560 is located at least in front of the center of at least the first guide part 520 and the second guide part 530 and is formed at a predetermined interval at a position adjacent to the front discharge port 550 do.

The cool air guided to the first half of the storage compartment 100 through the first guide part 520 and the second guide part 530 is guided to the storage compartment 100 by the front discharge port 550 and the lower discharge port 560. [ As shown in FIG. The front discharge port 550 and the lower discharge port 560 may be elongated in the horizontal direction or may be arranged in two rows.

The openings of the plurality of downward discharge ports 560 are formed to have a size corresponding to the cross sectional area of the inside of the first guide part 520 and the second guide part 530, So that the cold air moving along the second guide portion 530 does not cause a pressure drop due to the downward discharge port 560. In addition, cool air of a predetermined flow rate can be discharged through the front discharge port 550 and the lower discharge port 560.

The front discharge port 550 and the lower discharge port 560 are formed to have a somewhat inclined shape so that the discharged cold air has a directionality. Further, a rib-shaped discharge guide portion 562 may be further formed around the front discharge port 550 and the lower discharge port 560 as necessary.

Therefore, the cold air discharged through the front discharge port 550 and the lower discharge port 560 can be discharged obliquely toward the front side. The cool air discharged from the lower discharge port 560 may be discharged laterally.

Depending on the inclination of the front discharge port 550 and the discharge port 560 or the direction of the discharge guide portion 562, the discharge direction of the cold air can be set in various directions such as forward or inclined rearward or lateral.

Meanwhile, the first guide part 520 is formed with a first guide rib 522. The first guide ribs 522 extend from the rear end of the first guide part 520 toward the front discharge port 550 and extend parallel to the side surfaces of the first guide part 520. The first guide rib 522 divides the inside of the first guide part 520 and guides cold air discharged from the inlet of the storage compartment 100 toward the front discharge port 550 and the lower discharge port 560 do.

The first guide ribs 522 are short-circuited at a substantially central portion of the first guide portion 520 and are formed to be branched so as to form a de-covering mounting portion 524. Therefore, a deodorant for removing odors from the inside of the storage compartment 100 may be mounted on the de-covering mounting part 524.

A second guide rib 532 is formed in the second guide portion 530. The second guide ribs 532 extend from the rear end of the second guide part 530 toward the front discharge port 550 and the downward discharge port 560. At this time, the second guide rib 532 is formed to be inclined so that the cool air guided through the extended portion 510 can be guided to the front discharge port 550 and the downward discharge port 560 side.

The cross-sectional area of the flow path formed by the second guide ribs 532 is larger than the cross-sectional area of the flow path formed by the first guide ribs 522, thereby ensuring a stable discharge flow rate.

The first guide part 520 and the second guide part 530 are provided with a plurality of coupling members 526 and 534 formed in a hook shape. Therefore, the first guide part 520 and the second guide part 530 can be fixedly mounted on the upper surface of the storage compartment 100 by the interference of the coupling members 526 and 534.

Of course, the first guide part 520, the second guide part 530, and the extended part 510 may be mounted by fastening a separate coupling member such as a screw, or may be mounted by other structures have.

The guide duct 500 is not mounted in a protruding form on the upper surface of the storage compartment 100 but inserted into the upper surface of the storage compartment 100 so that only the front discharge port 550 and the lower discharge port 560 And can be mounted so as to be exposed to the outside. At this time, the outer surface of the guide duct 500 may be entirely disposed on the same plane as the upper surface of the storage chamber 100.

Hereinafter, a refrigerator according to an embodiment of the present invention will be described with reference to the drawings.

FIGS. 12 and 13 are diagrams schematically showing the overall circulation state of the refrigerator.

12 and 13, in the operation of the refrigerator 1, the evaporator 410 generates cold air by driving the refrigeration cycle provided in the refrigerator 1. [ The generated cold air is circulated through the fan motor to the refrigerator compartment 20, the storage compartment 100 and the freezer compartment 30 to cool the inside of the refrigerator compartment.

More specifically, approximately 50% of the cold air generated by the evaporator 410 is supplied to the freezing chamber 30 through the grill pan 420 partitioning the freezing chamber 30 and the heat exchange chamber 400. For this purpose, the freezing chamber outlet 424 and the freezing chamber inlet 422 are formed in the grill pan 420. When the freezing compartment 30 is divided into a plurality of spaces, the freezing compartment outlet 424 and the freezing compartment inlet 422 are provided at corresponding positions of the respective spaces. Therefore, the freezing chamber 30 is cooled by circulating cool air between the freezing chamber 30 and the heat exchange chamber 400.

The refrigerating chamber 20 is connected to the heat exchange chamber 400 by the supply duct assembly 200 and the suction duct assembly 300. Therefore, the inside of the refrigerating chamber (20) is cooled by the circulation of cool air between the refrigerating chamber (20) and the heat exchange chamber (400). At this time, approximately 40% of the cold air discharged from the heat exchange chamber 400 is supplied to the refrigerating chamber 20 to cool the refrigerating chamber 20.

In detail, the cool air in the heat exchange chamber 400 flows into the supply duct connection portion 210 through the heat exchange chamber inlet 402. The cool air flowing into the supply duct connection part 210 passes through the supply duct connection part 210, the supply flow path part 220 and the refrigeration side supply part 240 in order. The cold air guided through the refrigerating chamber side supply unit 240 can be introduced into the refrigerating chamber 20 through the refrigerating chamber inlet 24.

On the other hand, the inside of the supply passage 220 is branched and cool air supplied to the refrigerating chamber 20 flows into the refrigerating chamber side supplying unit 240. At this time, the refrigerating chamber side supply unit 240 may be provided with a damper 232, and the flow rate of the cool air can be adjusted by opening and closing the damper 232.

The cool air introduced into the refrigerator compartment inlet (24) flows into the refrigerator compartment cooling duct (600) provided in the refrigerating compartment (20). The refrigerator compartment cooling duct 600 may communicate with the supply duct assembly 200 and may be provided on an inner rear wall of the refrigerator compartment 20. The refrigerating chamber cooling duct 600 is formed along the periphery of the refrigerating chamber 20 and discharges the cool air into the refrigerating chamber 20 through the plurality of cooling holes 610.

The air exchanged in the refrigerating chamber (20) is discharged to the heat exchange chamber (400) through the suction duct assembly (300). More specifically, the air in the refrigerating compartment 20 flows into the refrigerating compartment suction duct 320 through the refrigerating compartment outlet 26, passes through the suction duct connecting part 310, passes through the heat exchanging compartment outlet 404, (400). The refrigerating chamber 20 is cooled through the circulation process.

Meanwhile, the storage chamber 100 is also supplied with cool air from the heat exchange chamber 400 by the supply duct assembly 200. The storage chamber 100 is supplied with approximately 10% of the cold air discharged from the heat exchange chamber 400 and discharges a relatively small amount of cool air as compared with the refrigerating chamber 20 and the freezing chamber 30. Of course, if necessary, the storage room 100 can also be provided with intensive cooling or rapid cooling by a separately provided fan.

14 is a view schematically showing the circulation state of the cool air inside the storage chamber.

12 to 14, the cool air circulation state of the storage compartment will be described below.

The cool air generated in the heat exchange chamber (400) flows into the supply duct connection portion (210) through the heat exchange chamber inlet (402). The cool air flowing into the supply duct connection part 210 is branched from the supply flow path part 220 and is transferred to the storage chamber side supply part 230. The cool air transferred to the storage chamber side supply unit 230 flows into the storage chamber 100 through the storage chamber inlet 102.

The storage chamber inlet (102) is connected to the guide duct (500). Therefore, the cool air introduced into the storage chamber inlet 102 flows into the guide duct 500. The cool air introduced into the guide duct 500 is branched by the extended portion 510 and flows toward the first guide portion 520 and the second guide portion 530, respectively.

At this time, the flow path cross-sectional areas of the first guide part 520 and the second guide part 530 are different. Therefore, even if the length of the cold air flow path is different, the discharge flow rate of cool air discharged through the first guide part 520 and the second guide part 530 becomes similar.

That is, since the first guide part 520 is located at the front corresponding to the storage compartment inlet 102, the cool air can be directly moved. The cool air introduced into the first guide portion 520 is guided by the first guide ribs 522 to move toward the front discharge port 550 and the downward discharge port 560.

Since the second guide part 530 is located in a direction opposite to the first guide part 520, the cool air is moved in the opposite direction along the extension part 510, and then the second guide part 530 ≪ / RTI > The cool air introduced into the second guide portion 530 moves toward the front discharge opening 550 and the downward discharge opening 560 by the guide of the second guide rib 532. The second guide ribs 532 are formed to be inclined so that the cold air can be supplied to the front discharge port 550 and the lower discharge port 560 at the shortest distance.

The cool air introduced into the first guide part 520 and the second guide part 530 is discharged to the front discharge port 550 and the lower discharge port 560 in the front part of the storage compartment 100, respectively. At this time, the chilled air discharged to the front discharge port 550 can be discharged downward by a slight inclination due to the inclination of the front discharge port 550. The cool air discharged to the downward discharge port 560 discharges cool air downward through a plurality of down discharge ports 560. The cool air discharged through the downward discharge port 560 by the discharge guide portion 562 can be discharged to the left and right side walls of the storage chamber 100, respectively.

Since the first guide part 520 and the second guide part 530 are provided on both right and left sides of the storage compartment 100, the cool air can be discharged from both right and left sides of the first half of the storage compartment 100. Accordingly, the first half and the left and right sides of the storage compartment 100 having a relatively high temperature can be cooled.

The air in the storage chamber 100 flows into the storage chamber suction duct 330 through the storage chamber outlet 104 provided in the lower rear wall of the storage chamber 100. The storage chamber suction duct 330 is formed separately from the refrigerating chamber suction duct 320 and flows to the heat exchange chamber 400 without being mixed with the refrigerating chamber suction duct 320. The refrigerant is sucked into the storage chamber 100 through the heat exchange chamber outlet 404, Of the air. Therefore, the cool air in the storage chamber 100 and the heat exchange chamber 400 can be circulated continuously, thereby cooling the inside of the storage chamber 100.

The refrigerating chamber suction duct 320 and the storage chamber suction duct 330 are formed to have separate passages so that the refrigerating chamber 20 and the cool air sucked in the storage chamber 100 are not mixed with each other, Do not happen.

Meanwhile, a damper 540 may be provided at one side of the guide duct 500 connected to the storage chamber inlet 102. The damper 540 is configured to adjust the cool air flowing into the guide duct 500. Accordingly, the inflow of cold air is controlled by opening and closing the damper 540, and the temperature of the storage compartment 100 can be adjusted.

The damper 540 is electrically connected to the temperature sensor 570 by a control unit and is opened when the temperature condition of the temperature sensor 570 is not satisfied to supply cool air to the storage chamber 100.

Meanwhile, the guide duct 500 may be independently provided on the right and left sides of the upper surface of the storage compartment 100 without being connected by the extension part 510. At this time, the end of the storage chamber side supply unit 230 may be branched to the left and right sides to be directly connected to the first guide duct 500 and the rear end of the second guide duct 500, respectively.

Claims (1)

An outer case for accommodating the in case, a cabinet cover for shielding an opened rear face of the out case, and a heat insulating material filled in a space formed between the in case, the out case, and the cabinet cover, A cabinet in which a freezing chamber, a storage chamber formed above the freezing chamber, and a refrigerating chamber formed above the storage chamber are formed inside the case;
A grill fan which divides the freezing chamber into a front and a rear space;
A heat exchange chamber corresponding to the space on the rear side of the grill pan;
An evaporator placed in the heat exchange chamber;
An inlet of a heat exchange chamber and an outlet of a heat exchange chamber formed on a back surface of the phosphorus case defining a rear surface of the heat exchange chamber;
A storage chamber inlet and a storage chamber outlet formed on the back surface of the phosphorus case defining a rear surface of the storage chamber;
An inlet of a refrigerator compartment and an outlet of a refrigerator compartment formed on a back surface of the in-case case defining a rear surface of the refrigerating compartment;
A supply duct assembly in which a plurality of cool air supply passages connecting the inlet of the heat exchange chamber and the inlet of the storage chamber and the inlet of the refrigerating chamber are defined in a module form;
A suction duct assembly in which a plurality of cool air return channels connecting the storage chamber outlet, the refrigerating chamber outlet, and the heat exchange chamber outlet are defined in a module form;
And a guide duct mounted inside the storage chamber and communicating with the storage chamber inlet,
Wherein at least a portion of the guide duct extends from a rear surface of the storage compartment to a front side so that cool air supplied through the storage compartment inlet is discharged to the front of the storage compartment.

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