KR101864621B1

KR101864621B1 - Refrigerator

Info

Publication number: KR101864621B1
Application number: KR1020160110189A
Authority: KR
Inventors: 김진동
Original assignee: 엘지전자 주식회사
Priority date: 2016-08-29
Filing date: 2016-08-29
Publication date: 2018-06-07
Also published as: KR20180024279A

Abstract

According to the present invention, there is provided a refrigerator comprising: a heat insulating material having a cold air flow path formed therein and having a first cold air discharge port; And a second cool air discharge port corresponding to the first cool air discharge port, wherein the heat insulating material is installed inside the duct casing; A rib extending from the inner circumferential surface of the second cold air discharging opening to the inside of the first cold air discharging opening to obstruct a gap between the heat insulating material and the duct casing; And a protrusion formed to protrude from the inner circumferential surface of the second cool air discharge port and to change the flow direction of cool air discharged from the cool air flow path through the first and second cool air discharge openings.

Description

Refrigerator {REFRIGERATOR}

The present invention relates to a refrigerator effective for maintaining the freshness of food.

Generally, a refrigerator is a household appliance having a freezer compartment and a refrigerating compartment in a main body, and storing food at a predetermined temperature in a freezing compartment and a refrigerating compartment to maintain the freshness of the food.

The temperature of a refrigerator is an essential property for food storage, but an essential property that affects the quality of food.

It is important to keep the temperature of the storage space at a certain level by cooling the food with cold air to maintain the freshness of the food stored in the refrigerator.

In order to provide cooling air into the freezing room or the refrigerating room, a cold discharge duct is provided inside the freezing room or the refrigerating room.

1 is a cross-sectional view illustrating a cold air discharge duct provided in a conventional refrigerating chamber.

The cold air discharge duct (10) can be installed in the rear wall (2) in the refrigerating chamber (1). The cold air discharge duct (10) can be composed of the duct injection (12) and the heat insulating material (11). The heat insulating material (11) is installed inside the duct injection mold (12). The cool air discharge port 12a is formed on the front face of the duct injection object 12 and the cool air discharge port 11a is formed in the heat insulating material 11 at a position corresponding to the cool air discharge port 12a of the duct injection object 12.

The cold air flow path 13 is formed inside the heat insulating material 11 and the cold air flows from the cold air flow path 13 through the cold air discharge ports 11a and 12a formed in the heat insulating material 11 and the duct injection object 12, .

However, in the conventional cold air discharge duct 10, a part of the cool air discharged through the cold air discharge openings 11a and 12a is not transferred to the refrigerating chamber 1 and the clearance 14 between the heat insulating material 11 and the duct injection body 12 So that the duct ejection 12 can be sub-cooled.

In this case, the difference between the temperature in the refrigerating chamber 1 and the surface temperature of the duct injection mold 12 is large, and dew is generated on the surface of the duct injection mold 12.

When a gap 14 between the heat insulating material 11 and the duct injection molding 12 is large or a step is formed on the assembly surface of the heat insulating material 11 and the duct injection molding 12, The strength and direction can not be maintained constant.

For example, when cool air passes through the gap 14 between the heat insulating material 11 and the duct injection 12 while passing through the cold air discharge ports 11a and 12a at a high speed, a part of the cool air flows into the gap 14 The flow resistance due to the vortex is generated, the flow rate of the cool air decreases, the flow rate of the cool air becomes weak, and the direction of the cold air fluctuates irregularly.

FIG. 2 is a conceptual view showing a cold air discharge port forming structure of a refrigerator disclosed in the prior art document D1.

In the prior art document D1, cool air is prevented from flowing into the gap 24 between the duct ejection 22 of the cold air discharge duct 20 provided in the rear wall 2 of the refrigerator compartment 1 of the refrigerator and the heat insulating material 21 of the styrofoam A closed rib 23 is provided. A step 21b is formed around the cold air discharge opening 11a of the heat insulating material 11 and the closed rib 23 is formed so as to surround the cold air discharge opening 21a of the heat insulating material 21 around the cold air discharge opening 22a of the ductwork 12 And is engaged with the step 21b by interference fit. The closed rib 23 cuts off the gap 24 between the duct ejection 22 and the heat insulating material 21 to prevent air from flowing into the gap 24.

However, since the cold air discharge duct 20 according to the prior art reference is formed such that the cold air discharge port 22a (including the closed rib 23) of the ductwork 22 is formed at right angles, the position of the discharge port 20 is fixed There is a problem that it is difficult to change the discharge direction of the cool air.

In addition, there is a problem that the discharge direction of the cold air is fixed in the front direction, and there is a region in which it is difficult to transfer cold air to a specific position.

For example, a storage space separated from the refrigerating chamber 1 in the refrigerating chamber 1 door is provided in the discharge direction of the cold air discharge ports 21a, 22a so as to be able to cope with the demand of consumers who want to store various kinds of food conveniently. It is difficult to transfer the cool air to the storage space when the cool air discharge port 11a is located at a position lower than the cool air discharge port 11a.

D1: registered patent 10-0557490 (registered on February 24, 2006)

Accordingly, it is a first object of the present invention to provide a cold air discharge duct for a refrigerator and a refrigerator having the same, which can prevent the cold air from flowing into a gap between the heat insulating material and the duct injection.

A second object of the present invention is to provide a cold air discharge duct for a refrigerator that can effectively transfer cold air required for food cooling to a specific position, and a refrigerator having the same.

In order to accomplish the first object of the present invention, the cold air discharge duct for a refrigerator of the present invention includes ribs extending from the cold air discharge port of the duct injection product to the inside of the cold air discharge port of the heat insulating material to prevent the gap between the heat insulating material and the duct injection have.

In order to achieve the second object of the present invention, a cold air discharge duct for a refrigerator of the present invention includes protrusions protruding from an inner circumferential surface of a cold air discharge port of a duct injection product, and includes a heat insulating material and a cold air discharge port The flow direction can be switched.

In order to achieve the above object, according to the present invention, there is provided a cold air discharge duct for a refrigerator, comprising: a heat insulating material having a cold air flow path formed therein and having a first cold air discharge port; And a second cool air discharge port corresponding to the first cool air discharge port, wherein the heat insulating material is installed inside the duct casing; A rib extending from the inner circumferential surface of the second cold air discharging opening to the inside of the first cold air discharging opening to obstruct a gap between the heat insulating material and the duct casing; And protrusions formed to protrude from the inner circumferential surface of the second cool air discharge port and to switch the flow direction of cool air discharged from the cool air flow path through the first and second cool air discharge openings.

According to an example of the cold discharge duct of the present invention, the projection may protrude in a direction intersecting the extending direction of the rib.

According to an embodiment of the present invention, the protrusion may include a first protrusion protruding in the gravity direction from an upper portion of the inner circumferential surface of the second cold air discharge opening.

According to an example of the cold discharge duct of the present invention, the protrusion may further include a second protrusion protruding laterally from both side surfaces of the inner circumferential surface of the second cold air discharge opening.

According to an example of the cold discharge duct of the present invention, the second protrusion may have a shorter protrusion length in the direction of gravity.

A refrigerator having a cold discharge duct according to the present invention includes: a main body having a refrigerator compartment, a freezer compartment, and a plurality of shelves for partitioning the refrigerator compartment and the freezer compartment; A door having a plurality of baskets inside and opening / closing the refrigerating and freezing chambers; And a cold air discharge duct installed at a rear wall of the refrigerator compartment or the freezer compartment, wherein the cold air discharge duct has a cold air passage formed therein, and a first cold air discharge port; And a second cool air discharge port corresponding to the first cool air discharge port, wherein the heat insulating material is installed inside the duct casing; And a flow direction of the cool air discharged from the cool air passage through the first and second cool air discharge openings is formed in a basket or a basket at a lower position than the first and second cool air discharge openings, And a projection which is switched toward the communication hole communicating with the basket.

According to an embodiment of the refrigerator of the present invention, the refrigerator further includes a door cover, which is a door that is rotatably mounted on the inside of the door, having a plurality of baskets vertically spaced from each other, The door cover, which is a door, may include a plurality of cool air communication holes communicating with the spaces between the plurality of shelves.

According to an embodiment of the refrigerator of the present invention, the first and second cool air discharge openings may be formed in a plurality of spaced apart from each other in the vertical direction.

According to one example of the refrigerator according to the present invention, the plurality of cold air communication holes are first to nth cold air communication holes arranged in the upward direction from the bottom of the door cover, Wherein the first to n-th chilled air communication holes have an increased area in the front-rear direction of the space between each of the cold air communication holes and the shelf, the higher the height of the first to nth chilled air communication holes, And the flow direction of the cool air can be switched to the first end and the second end air coolant communication hole, respectively.

According to an embodiment of the refrigerator of the present invention, each of the first and second cold air discharge openings may be disposed adjacent to a lower surface of the shelf.

According to the present invention configured as described above, the following effects can be obtained.

First, a rib may be provided between the heat insulating material and the duct injection object, so that the cold air passing through the cold air discharge opening by the rib can be prevented from flowing into the gap between the heat insulating material and the duct injection object. As a result, the flow resistance can be minimized when the high-speed cool air passes the cool air discharge port, the discharge intensity of the cool air can be weakened, or the discharge direction of the cool air can be kept constant without shaking.

Second, the rib extends from the cold air discharge port of the duct injection object to the cold air discharge port of the heat insulating material to wrap the inner peripheral surface of the cold air discharge port of the heat insulating material, thereby reducing the scattering of the coupling between the heat insulating material and the duct injection object.

Thirdly, even in the case of a refrigerator composed of a separate storage space of a complicated structure so as to cope with a demand of a consumer who wants to store various kinds of food conveniently, a protrusion is provided on the inner circumferential surface of the cold air discharge opening of the duct injection, By switching the direction to a specific position, for example, a separation storage space of a door, etc., it is possible to effectively transmit cool air to a specific position, thereby improving freshness and storage performance of the food.

Fourth, when the cold air passes through the cold air discharge opening having a narrow flow area, the flow speed increases and vortexes are generated when the high speed cold air hits the protrusion formed at the tip of the cold air discharge opening. By the action of the vortex, A pressure difference is generated, and the direction of the flow can be switched from the high pressure side where the projections are formed to the low pressure side where the flow velocity is high. Since the protrusion formed at the tip of the cold air discharge port has a simple structure and can be formed integrally with the duct injection object, the flow of cold air can be guided in a necessary direction without additional material cost.

1 is a cross-sectional view illustrating a cold air discharge duct provided in a conventional refrigerating chamber.
FIG. 2 is a conceptual view showing a cold air discharge port forming structure of a refrigerator disclosed in the prior art document D1.
3 is a perspective view of a refrigerator according to the present invention.
FIG. 4 is a conceptual view showing a state in which the cold air discharge duct is divided into a duct injection mold and a heat insulating material in FIG.
5 is an enlarged view showing protrusions formed on the cold air discharge opening in the portion "A" of Fig.
6 is a cross-sectional view taken along line BB in Fig.
7 is a cross-sectional view for explaining the action of the protrusion formed on the cold air discharge opening in the portion "A " in Fig.
8 is a cross-sectional view illustrating a refrigerator compartment to which a door cover, which is a door related to the present invention, is applied.
FIG. 9 is a conceptual view showing a state in which a shelf and a drawer are mounted on the cold discharge duct in the refrigerating chamber in FIG.
10 is a conceptual view showing a cold air discharge port formed in the cold air discharge duct of FIG.
FIG. 11 is a conceptual view showing a door cover which is a door installed inside the door of FIG. 8. FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a cold air discharge duct for a refrigerator and a refrigerator having the same according to the present invention will be described in detail with reference to the drawings. The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be obscured.

3 is a perspective view of a refrigerator according to the present invention.

The outer appearance of the refrigerator is formed by the main body 100 and the door 110.

The main body 100 includes an outer case and an inner case.

The outer case forms the remaining outer surface of the refrigerator except for the front portion of the refrigerator formed by the door 110. [ The top and side surfaces of the refrigerator shown in Fig. 3 correspond to the outcases.

The inner case is disposed inside the main body 100. The inner case is configured to form a food storage compartment inside the refrigerator. The food storage room can be divided into a refrigerating room (101) and a freezing room (102) according to a set temperature.

3 shows a bottom freezer type refrigerator in which a refrigerating chamber 101 is provided at an upper portion of a main body 100 and a freezing chamber 102 is provided at a lower portion thereof. However, the present invention is not limited to the bottom freezer type refrigerator. The present invention relates to a top-mount type refrigerator having a side-by-side type refrigerator in which a refrigerating chamber (101) and a freezing chamber (102) The refrigerator of the present invention can be applied.

The inner case forms an inner wall of the food storage chamber. The inner case can be classified according to the position. For example, in Fig. 3, a side wall 101b and a rear wall 101a of the refrigerating chamber 101 are shown.

The cold air discharge duct 120 is installed on the rear wall 101a of the refrigerating chamber 101. [ A cool air flow path (123) for supplying cool air to the refrigerating chamber (101) is formed in a space that is visually obscured by the cold air discharge duct (120). The cold air discharge duct (120) is provided with a cold air discharge opening which opens toward the refrigerating chamber (101).

A cold room fan (not shown) is installed behind the cold air discharge duct 120, and the cold air formed by the cold room fan flows along the cold air channel 123 and is supplied to the refrigerating chamber 101 through the cold air outlet.

The configuration of the cool air channel 123, the fan, and the cool air discharge port provided in the refrigerating chamber 101 can be similarly applied to supply the cool air to the freezing chamber 102.

Insulation material is charged between the outer case and the inner case. The insulation is formed by a foaming process.

The door 110 is connected to the main body 100 and forms an outer appearance of the front portion of the outer appearance of the refrigerator. The door 110 is configured to open and close the front opening of the main body 100. The door 110 may be divided into a rotary door 110 or a drawer-type door according to an opening and closing method. The rotatable door 110 is rotatably installed in the main body 100, and the drawer-type door is slidably connected to the main body 100.

The door 110 can be divided according to the installation position. The door 110 for opening and closing the refrigerating chamber 101 is divided into a refrigerating chamber door 111 and the door 110 for opening and closing the freezing chamber 102 can be divided into a freezing chamber door 112. The left refrigerating chamber door 111, the right refrigerating chamber door 111, the left freezing chamber door 112 or the right freezing chamber door 112 may be divided depending on whether the installation position is the left side or the right side.

The door 110 has a door liner on the inside thereof, and a gasket is installed around the door lanner to prevent the leakage of the cold air. The door lanier forms a storage space for the food together with the basket 114 to be described later. The gasket is brought into close contact with the front edge of the main body 100 to seal the food storage chamber.

3, a rotatable door 110 rotatably installed on the main body 100 is shown. The refrigerator has a hinge (113) for realizing rotation of the rotary door (110).

The hinge 113 is divided into an upper hinge 113, a middle hinge 113 or a lower hinge 113 depending on the installation position. Referring to FIG. 3, the upper hinge 113 is installed on the upper surface of the main body 100. The middle hinge 113 is installed between the refrigerator compartment door 111 and the freezer compartment door 112. The lower hinge 113 is installed below the freezer compartment door 112.

The upper hinge 113 and the middle hinge 113 are connected to the upper and lower portions of the refrigerator compartment door 111 to implement the rotation of the refrigerator compartment door 111, respectively. The middle hinge 113 and the lower hinge 113 are connected to the upper and lower portions of the freezing chamber door 112 to implement the rotation of the freezing chamber door 112, respectively.

At least one storage unit for efficiently utilizing the space of the food storage room is provided in the refrigerator. The receiving unit is a concept including a shelf 103, a drawer 104 (or tray), a panning tree and a basket 114. The shelf 103, the drawer 104 and the pantry can be installed in the food storage room and the basket 114 can be installed inside the door 110.

The shelf 103 is in the form of a plate. The shelf 103 is installed horizontally in the food storage room so that food can be placed on the upper surface. The shelf holder 121 is installed in the rear wall 101a of the food storage chamber or the cold discharge duct 120 and the shelf 103 can be mounted on the shelf holder 121.

The drawers 104 are each configured to store food in a space separate from other spaces in the food storage. The drawer 104 can be configured to be slidable and can be inserted into or withdrawn from the food storage chamber by sliding movement.

In order to generate cold air, a refrigeration cycle device is provided inside the main body 100. The refrigeration cycle apparatus comprises a compressor, a condenser, an expansion device (such as a capillary tube), and an evaporator. The refrigeration cycle apparatus can generate cold air by exchanging heat between the air and the refrigerant using the circulation of the refrigerant. The compressor compresses the refrigerant at high temperature / high pressure, the condenser cools and condenses the compressed refrigerant, and the expansion device expands and decompresses the condensed refrigerant. The evaporator evaporates the decompressed refrigerant, . At this time, the evaporator can generate cold air by cooling the air through heat exchange between the refrigerant and the air.

4 is a conceptual view showing a state in which the cold air discharge duct 120 is broken down into the ductwork 124 and the heat insulating material 122 in FIG. 3, and FIG. 5 is a view showing a state in which the cold air discharge port 125 6 is a cross-sectional view taken along the line BB in Fig. 5, and Fig. 7 is an explanatory view showing the action of the protrusion 1242 formed in the cold air discharge opening 125 in the "A" Fig.

The cold air discharge duct 120 functions as a passage through which cold air of low temperature moves. The cold air discharge duct 120 has a cold air discharge opening 125 communicating with the inner space of the refrigerating chamber 101 to supply cold air to the inner space of the refrigerating chamber 101.

The cold air discharge duct 120 may include a heat insulating material 122 and a duct injection object 124.

The duct ejection member 124 forms the appearance of the cold air discharge duct 120. The duct injection object 124 can be manufactured by injection molding plastic resin such as ABS. A plurality of cool air discharge openings 1252 are formed in the duct injector 124 so as to communicate with the inner space of the refrigerating chamber 101 so that the cool air can be discharged through the cool air discharge openings 1252.

A cool air flow path (123) is formed inside the heat insulating material (122). The heat insulating material 122 is mounted inside the duct injection object 124 except for the cold air discharge opening 1252 of the duct injection object 124 to block the heat from being transferred from the duct injection object 124 to the cold air flow path 123. The heat insulating material 122 has a cold air discharge opening 1251 communicating with the cold air discharge opening 1252 of the duct injection object 124. The cold air discharge port 1251 of the heat insulating material 122 may be formed at a position corresponding to the cold air discharge port 1252 of the duct injection object 124. The heat insulating material 122 of the cold discharge duct 120 may be made of Engineering Plastics (EP). EP is used as a substitute for metal and thermosetting resin compared to general purpose plastic, and is a resin product that is applied to various fields such as automobile parts and precision machinery field because of excellent molding processability.

The cold air discharge port 1252 of the duct ejection object 124 further includes a rib 1241. The rib 1241 is extended at right angles to surround the cold air discharge opening 1251 of the heat insulating material 122 at the cold air discharge opening 1252 of the duct injection object 124. The ribs 1241 form a cold air discharge opening 125 of the cold air discharge duct 120. The rib 1241 may be formed integrally with the duct injection mold 124. The ribs 1241 extend from the cold air discharge port 1252 of the duct injection object 124 to cover the cold air discharge port 1251 of the heat insulating material 122. The ribs 1241 are formed on the assembly surface of the duct injection object 124 and the heat insulating material 122 It is possible to prevent the occurrence of a step and reduce the scattering of the coupling between the duct injector 124 and the heat insulating material 122.

The cool air discharge port 1252 of the duct ejection object 124 includes the protrusion 1242. The protrusion 1242 is formed so as to protrude from the tip of the cold air discharge port 1252 of the duct injection object 124.

The protrusions 1242 are formed by combining a plurality of protrusions 1242 in one cool air discharge port 125 so as to effectively guide the discharge direction of cool air according to the position of the cool air discharge port 125 of the cold air discharge duct 120 .

For example, the protrusion 1242 may include a first protrusion 1242a and a second protrusion 1242b.

The first protrusion 1242a may be formed so as to protrude in the gravity direction at an upper portion of the inner circumferential surface of the cold air discharge port 1252 of the duct injection object 124. [ The first protrusion 1242a forms a swirl of cool air above the cool air discharge port 1252 of the duct ejection 124 when the cold air passes through the cool air discharge port 125 from the cool air flow path 123. The cool air discharge port 1252 (The pressure at the first protrusion 1242a) of the first protrusion 1242a is relatively higher than the lower side thereof, so that the discharge direction of the cold air is inclined from the upper side to the lower side.

Each of the plurality of second projections 1242b may be formed so as to protrude laterally from both sides of the inner circumferential surface of the cold air discharge port 1252. [ The second protrusion 1242b may be formed so that the protrusion length in the lateral direction becomes shorter toward the gravity direction. The second protrusions 1242b are formed on both left and right sides of the cool air discharge port 1252 so that the pressure in the second protrusions 1242b is higher than the space between the second protrusions 1242b, To the space between them. The second protrusion 1242b can further increase the flow rate of the cool air.

Here, the first and second protrusions 1242a and 1242b may be formed so as to protrude in a direction intersecting the extending direction of the rib 1241.

The flow velocity increases when the cold air passes through the cold air discharge opening 125 having a narrow flow area and vortex occurs when the high speed cold air hits the projection 1242 formed at the tip of the cold air discharge opening 1252. [ A pressure difference is generated in each cold air flow position by the action of the vortex and the direction of the flow is switched from the high pressure side where the protrusions 1242 are formed to the low pressure side where the flow velocity is fast.

Therefore, according to the present invention, the protrusions 1242 formed in the cold air discharge port 1252 of the duct ejection 124 are arranged in a specific position in the storage space separated by a complicated structure so that cold air can conveniently store various kinds of plants. Can be effectively transmitted.

Since the protrusion 1242 formed at the tip of the cold air discharge port 1252 of the duct injection object 124 has a simple structure and can be formed integrally with the duct injection object 124, , The freshness of the food can be maintained, and the storage performance of the food can be improved.

FIG. 8 is a sectional view showing a refrigerating chamber 201 to which a door cover 231 according to the present invention is applied, and FIG. 9 is a sectional view showing the shelf 203 and the drawers 210 in the cold air discharge duct 220 in the refrigerating chamber 201, FIG. 10 is a conceptual view showing a cool air discharge port 225 formed in the cold air discharge duct 220 of FIG. 9, FIG. 11 is a conceptual view showing a state where the door 210 installed inside the door 210 of FIG. And a door cover 231. FIG.

The refrigerator according to the present embodiment includes a main body 200 and a door 210. The main body 100 includes a refrigerating chamber 201 and a freezing chamber. The refrigerating chamber 201 and the freezing chamber may be partitioned by a plurality of shelves 203.

The door 210 is rotatably installed in front of the main body 200 to open and close the freezing chamber 201 and the freezing chamber. The door 210 has a plurality of baskets 214 on the inside thereof for storing food. The plurality of baskets 214 are vertically spaced apart and detachably coupled to the door 210.

A door 230 is rotatably mounted inside the door 210. The door 230 is rotatably installed to the refrigerator compartment door 211 or the freezer compartment door. The door 230 is rotatably installed independently of the door 210, but may be rotated together with the door 210. A door-side door cover 231 is installed inside the door-side door 230. The door cover 231, which is a door, has a plurality of baskets 114 on the inner side for storing food. The plurality of baskets 114 are vertically spaced apart and detachably coupled to the inside of the door cover 231.

The basket 214 of the door 210 and the basket 232 of the door 230 may be disposed to correspond to each other in the height direction or may have a height difference therebetween.

Each of the plurality of baskets 214 may have a rectangular box shape opened upward. The lateral length of the basket 214 is formed to correspond to the lateral length of the door 210 and can be fitted into the inside of the door 210 of the basket 214. The basket 232 of the door cover 231, which is a door, can also be formed to correspond to the lateral length of the door cover 231 as a door.

The cold discharge duct 220 may be installed in the refrigerating chamber 201 or the rear wall 201a of the freezing chamber. The present embodiment shows a state where it is installed on the rear wall 201a of the refrigerating chamber 201. [

The cold air discharge duct 220 is composed of a heat insulating material and a duct injection.

A cool air flow path (223) is formed inside the heat insulating material. The heat insulating material has a first cold air discharge opening.

Insulation is mounted inside the ductwork. The duct injection object has a second cold air discharge opening corresponding to the first cold air discharge opening.

The first and second cold air discharge ports are formed to communicate with each other to form a single cold air discharge port 225. The first and second cool air discharge openings are spaced apart from each other in the vertical direction to form a plurality of cool air discharge openings 225.

And protrusions are integrally formed on the inner circumferential surface of the second cool air discharge opening provided in the duct injection object.

The protrusions are arranged in such a manner that a flow direction of cool air discharged from the cool air passage 223 through the first and second cool air discharge openings is communicated with the baskets 214 and 232 or the baskets 214 and 232 located lower than the first and second cool air discharge openings Air communication hole 233 as shown in FIG.

Each of the cold air discharge openings 125 is disposed adjacent to the lower surface of the shelf 203 so that cold air can be transferred from the cold air discharge opening 225 while moving along the shelf 203.

Referring to FIG. 8, the door cover 231, which is a door, has a cool air communication hole 233 communicating with the upper portion of the basket 232. The cool air communication holes 233 may correspond to the number of the baskets 232 or may be less than the number of the baskets 232. 8 is provided at the upper part of the door cover 231 which is a door and the cold air communication hole 233 is formed in the upper part of the door 231 in order to communicate the inner space of the refrigerating chamber 201 and the basket 232, And is formed in the door cover 231.

The protrusion formed on the cold air discharge port 225 may be about 1/10 of the height of the cold air discharge port 225. However, it is not limited to the above values.

The discharge direction of the cold air discharged from the cold air flow path 223 through the cold air discharge port 225 is made to be communicated with the basket 232 of the door cover 231 and the door 210 or the basket 232 Even in the case of a refrigerator configured as a separate storage space of a complicated structure so as to be able to cope with a demand of a consumer who wants to store various kinds of food conveniently by switching to the cold air communication hole 233, And the basket (114, 232), it is possible to improve the freshness maintenance and storage performance of the food.

11, the door 230 as a door is installed inside the door 210, and the door cover 231 as a door is composed of a first cover member 2311 and a second cover member 2312 . The second cover member 2312 can be coupled to the front end of the first cover member 2311 toward the inner space of the refrigerating chamber 101. A plurality of cold air communication holes 233 are formed in the second cover member 2312 so as to be spaced apart in the vertical direction.

The plurality of cold air communication holes 233 may include first to nth stage cold air communication holes 2331 to 233n (n is a natural number of 2 or more). The first through n-th chilled air communication holes 233 may be spaced apart from each other in the upward direction from a lower portion of the door cover 231 as a door.

The first to nth-stage chilled air communication holes 2331 to 233n may have different sizes or may have the same area. In the case of the cold air communication hole 233 shown in FIG. 11, the sizes of the first stage and second stage air communication holes 2331 and 2332 are the same, and the size of the third stage air communication hole 2333 is the same as that of the first and second And is smaller than the cool air communication holes 2331 and 2332.

A cool air communication hole 2334 may be formed in the first cover member 2311 of the door cover 231 as a door facing the upper wall of the refrigerating chamber 201. The cold air communication hole 2334 is located at the uppermost end of the door cover 231 as a door so that cold air can be transmitted to the upper basket 114.

A part of the first stage chilled air communication hole 2331 is covered by a drawer 104 located in the lower portion of the refrigerating chamber 101 and another portion of the first stage chilled air communication hole 2331 is interposed between the shelves 103 And the inflow area of the cool air flowing into the first-stage cool air communication holes 2331 is narrowed. That is, the first stage cool air communication hole 2331 has an area overlapping with the cold air flowing space between the shelves 203 in the forward and backward direction, as compared with the second short air communication hole 2332.

In the present invention, it is necessary to change the cold air flow direction so that the discharge direction of the cold air discharged from the cold air discharge port (225) is directed to the first short air cooler communication hole (2331) with a narrow inflow area of cold air.

For this, the protrusion of the cold air discharge port 225 is formed in the second cold air discharge port of the duct injection product located in the lower portion of the refrigerating chamber 201 or the freezer compartment rear wall 201a, Holes 2331, it is possible to effectively transmit cold air to specific positions such as the separation space of the door 210 and the door cover 231 as a door.

Further, when the projections of the present invention are applied, the discharge direction of the cold air discharged from the cold air discharge port 225 is directed to the second-stage or third-stage cold air communication holes 2332, 2333 which are located lower than the cold air discharge port 225 The flow direction of the cool air can be changed.

It will be apparent to those skilled in the art that various modifications, substitutions and alterations can be made hereto without departing from the spirit and scope of the invention as defined by the appended claims. will be.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. .

The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be interpreted as being included in the scope of the present invention.

100, 200:
101,201: Refrigerator
101a, 201a: rear wall
102: Freezer
103,203: Shelf
104,204: Drawers
110: Door
111,211: Refrigerator door
112: Freezer door
113: Hinge
114,214: Basket
120, 220: cold discharge duct
121: Shelf holder
122: Insulation
123: cold air flow
124: Duct injection
1241: rib
1242: projection
1242a: first projection
1242b: second projection
125,225: Cool air outlet
1251: first cold air discharge port
1252: Second cool air discharge outlet
230: Door in door
231: Door-in door cover
2311: first cover member
2312: second cover member
232: Basket
233: Cool air communication hole
2331: First stage cool air communication hole
2332: Second stage cold air communication hole
2333: Third stage cold air communication hole
2334: Cold air communication hole

Claims

A refrigerator compartment, a freezer compartment, and a plurality of shelves for partitioning the refrigerator compartment and the freezer compartment, respectively;
A door having a plurality of baskets inside and opening / closing the refrigerating and freezing chambers;
A door cover having a plurality of baskets spaced apart in the vertical direction inside the door and being rotatably mounted on the door inside the door; And
And a cold discharge duct installed on a rear wall of the refrigerating chamber or the freezing chamber,
In the cold air discharge duct,
A heat insulating material having a cold air flow path formed therein and having a first cold air discharge port;
And a second cool air discharge port corresponding to the first cool air discharge port, wherein the heat insulating material is installed inside the duct casing;
A rib extending from the inner circumferential surface of the second cold air discharging opening to the inside of the first cold air discharging opening to obstruct a gap between the heat insulating material and the duct casing; And
And a flow direction of the cool air discharged from the cool air passage through the first and second cool air discharge openings is formed to protrude from the inner circumferential surface of the second cool air discharge opening, A communication hole communicating with the communication hole;
Lt; / RTI >
The door cover, which is the door,
And a plurality of cool air communication holes communicating with the space between the plurality of shelves,
Wherein the plurality of cold air communication holes include first through n-th stage freezing communication holes (n is a natural number of 2 or more) arranged in order upward from a lower portion of the door cover as the door,
As the height of the first to nth stage cool air communication holes increases, the area overlapping in the front-rear direction of the spaces between the respective cool air communication holes and the shelves increases,
Wherein the protrusions are respectively formed in a second cold air discharge opening located at the first and second positions upward in the lower portion of the refrigerating chamber or the rear wall of the freezing compartment so as to switch the flow direction of the cold air to the first and second cold air communication holes.

The method according to claim 1,
And the protrusion protrudes in a direction intersecting the extending direction of the rib.

The method according to claim 1,
Wherein the protrusion includes a first protrusion protruding in an gravity direction from an upper portion of an inner circumferential surface of the second cold air discharge opening.

The method of claim 3,
Wherein the protrusion further includes a second protrusion protruding laterally from both side surfaces of the inner circumferential surface of the second cold air discharge port.

5. The method of claim 4,
And the second protrusion has a shorter protrusion length in a direction toward the gravity direction.

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The method according to claim 1,
Wherein the first and second cold air discharge openings are formed in a plurality of spaced apart from each other in the vertical direction.

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The method according to claim 1,
Wherein each of the first and second cold air discharge openings is disposed adjacent to a lower surface of the shelf.