Refrigerator

Abstract

The invention discloses a refrigerator. The refrigerator comprises a cabinet body with a storage chamber and a refrigerator door for opening and closing the storage chamber. The refrigerator door includes a first door rotatably mounted so as to open and close the storage chamber, and a second door rotatably mounted to the first door so as to open and close the storage portion of the first door. The refrigerator comprises a cold air supply device for supplying cold air to the storage part. The cold air supply device comprises a cooling fan and a suction air duct. The cooling fan is attached to the upstream end of the suction duct with respect to the flow direction of the cold air. Therefore, cold air can be supplied to the upper side of the accommodating part.

Description

Technical Field

[0001] This invention relates to refrigerators. Background Technology

[0002] Generally, a refrigerator is a device for storing or freezing items.

[0003] Regarding the refrigeration and storage of refrigerators, a refrigerator is disclosed in prior art patent document No. 10-2022-0084003 (hereinafter referred to as the "Patent Document"; published on June 21, 2022).

[0004] According to the aforementioned patent document, a refrigerator may include: a cabinet forming a storage compartment; a heat exchange chamber formed inside the cabinet; an evaporator provided to the heat exchange chamber; a door for opening and closing at least a portion of the storage compartment; a cabinet provided to the door and forming a storage space; and an air duct that guides the cold air generated by the evaporator into the interior of the cabinet, extends from the heat exchange chamber, and is defined as a cold air flow path connected to the door at a position where the door is closed.

[0005] The aforementioned air duct includes a first air duct extending forward along at least one wall of the inner shell of the cabinet in a manner away from the aforementioned heat exchange chamber, and the cabinet may include a cold air inlet and a cold air outlet.

[0006] The refrigerator described above uses air ducts to transfer the cold air generated by the evaporator to the door cabinet, thereby cooling the storage space inside the cabinet.

[0007] However, the cold air generated by the evaporator is supplied not only to the storage compartment of the cabinet, but also to the cabinet through the air duct, which causes fluctuations in the circulation.

[0008] Furthermore, the aforementioned air duct is connected to the heat exchange chamber located at the lower back of the cabinet via the lower side of the door, which makes it difficult for cold air to be supplied from the lower part of the door to the upper part or to circulate within the aforementioned storage space.

[0009] Furthermore, the aforementioned first air duct is embedded in a manner that extends along at least one wall of the inner shell of the cabinet toward the side of the door, thereby reducing the heat insulation performance of the refrigerator. Summary of the Invention

[0010] Technical problems to be solved

[0011] The purpose of this invention is to provide a refrigerator with a structure that can solve the above-mentioned problems.

[0012] The primary objective is to provide a refrigerator with a structure that can supply cold air from the refrigerator compartment to the storage space inside the door.

[0013] The second objective is to provide a refrigerator with a structure capable of achieving refrigerator-level temperatures.

[0014] The third objective is to provide a refrigerator with a structure that prevents the refrigerator's insulation performance from deteriorating by embedding air ducts in a separate cabinet.

[0015] The fourth objective is to provide a refrigerator with a structure that can improve the circulation of cold air so that it passes through the storage section inside the door without any changes in the circulation process.

[0016] The fifth objective is to provide a refrigerator with a structure that prevents the cooling fan installed on the door from being exposed to the outside.

[0017] means of solving technical problems

[0018] The inventors of this invention have discovered through focused research that the technical problems of this invention and the first to fifth objectives described above can be achieved through the following embodiments of this invention.

[0019] To achieve the above objectives, a refrigerator according to an embodiment of the present invention includes: a cabinet having a storage compartment; a refrigerator door having a storage section for opening and closing the storage compartment; and a cold air supply device for supplying cold air to the storage section so that the cold air in the storage compartment circulates through the storage section.

[0020] The aforementioned air supply device includes: a cooling fan located on the refrigerator door to draw in cold air from the storage compartment; and an air intake duct connected to the cooling fan and the upper part of the storage section to transmit the cold air drawn in by the cooling fan to the upper part of the storage section.

[0021] Therefore, the aforementioned cold air supply device can supply cold air to the storage section of the refrigerator door in a cold air circulation manner.

[0022] According to one embodiment, the aforementioned air supply device can be located at the upper part of the refrigerator door. Therefore, the air supply device can supply cold air from the storage compartment to the upper side of the storage section.

[0023] According to one embodiment, the storage compartment includes a refrigerator compartment. The refrigerator door includes: a first door having the aforementioned storage portion, rotatably mounted to the cabinet to open and close the refrigerator compartment; and a second door rotatably mounted to the first door to open and close the storage portion.

[0024] Therefore, the aforementioned air supply device can supply air to the storage section of the first door.

[0025] According to one embodiment, the second door is made of a transparent material so that the user can view the storage section.

[0026] According to one embodiment, the refrigerator door further includes: an ice-making unit disposed on the rear wall of the storage section; and a heat-insulating wall disposed between the storage section and the ice-making unit, having a predetermined thickness.

[0027] Therefore, the ice-making unit can reduce the heat insulation load of the storage section of the first door.

[0028] According to one embodiment, the above-mentioned intake air duct may include: a first bend portion, which is disposed on the downstream side of the cooling fan with reference to the flow direction of the cold air, and is formed to be inclined upward in a direction relative to the horizontal line; and a second bend portion, which is formed to be inclined downward in the direction from the downstream side of the first bend portion.

[0029] Therefore, the first bend and the second bend can shield the cooling fan to prevent it from being exposed to the user.

[0030] According to one embodiment, the above-mentioned intake air duct may further include: a connecting portion disposed between the first bend portion and the second bend portion, thereby connecting the first bend portion and the second bend portion.

[0031] According to one embodiment, an inlet can be formed at the upper part of the aforementioned receiving section. An outlet can be formed at the lower part of the aforementioned receiving section to spray the cold air flowing in through the aforementioned inlet into the aforementioned storage chamber. The aforementioned cooling fan can be disposed at an angle downward toward the aforementioned storage chamber on one side of the aforementioned intake air duct.

[0032] The aforementioned intake duct may include a bend formed at a predetermined angle relative to the horizontal line through the aforementioned inlet. The aforementioned bend may shield the aforementioned cooling fan.

[0033] According to one embodiment, the intake air duct may include: an air duct body that houses the cooling fan and forms a flow path for the cold air; and a bend that bends from the downstream side of the air duct body with reference to the flow direction of the cold air.

[0034] According to one embodiment, the aforementioned bend can be disposed at the front end of the aforementioned air duct body.

[0035] The aforementioned bend may include: a first bend that is formed at an upward angle relative to a horizontal line passing through the lowest end of the aforementioned air duct body in one direction; and a second bend that is connected to the front end of the first bend and is formed at a downward angle in the aforementioned direction.

[0036] According to one embodiment, the cooling fan can be arranged at an angle downward toward the storage chamber inside the air duct body.

[0037] Based on the aforementioned horizontal line, the height of the upper end of the second bend can be the same as or higher than the lowest point of the lower end of the cooling fan.

[0038] Therefore, the second bend can block the cooling fan from the user's line of sight.

[0039] According to one embodiment, the main body of the air duct may include: an upper air duct on which the cooling fan is mounted and which houses the upper part of the cooling fan; and a lower air duct connected to the lower part of the upper air duct and which houses the lower part of the cooling fan.

[0040] Therefore, the aforementioned intake air duct can be easily formed. This improves the assemblability of the aforementioned intake air duct and the aforementioned cooling fan.

[0041] According to one embodiment, the first bend may include: a first upper bend, which is disposed downstream of the upper air duct and bends upward from the upper air duct, based on the flow direction of the cold air; and a first lower bend, which is disposed downstream of the lower air duct and bends upward from the lower air duct. Thus, the first upper bend and the first lower bend can form a flow path within the first bend.

[0042] The aforementioned second bend may include: a second upper bend connected to the downstream end of the first upper bend and bending downward from the first upper bend; and a second lower bend connected to the downstream end of the first lower bend and bending downward from the first lower bend. Thus, the second upper bend and the second lower bend can form a flow path within the second bend.

[0043] According to one embodiment, the above-mentioned intake air duct may include: a fan mounting portion that protrudes upward from the above-mentioned upper air duct and has a fan receiving portion inside; and a fan cover that is installed to cover the upper part of the above-mentioned fan mounting portion and has a mesh portion.

[0044] Therefore, the aforementioned fan mounting section can improve the assemblability of the aforementioned cooling fan and the aforementioned intake air duct.

[0045] According to one embodiment, the first door may include: a door housing disposed toward the storage room; and an intake formed on the upper surface of the door housing.

[0046] The aforementioned intake duct may include: a flange that protrudes from the upper end of the aforementioned sash mounting portion in a manner that overlaps with the upper surface of the aforementioned door housing; and a connecting guide that protrudes from the inner end of the aforementioned flange in a manner that contacts the inner surface of the aforementioned intake port.

[0047] Therefore, the aforementioned flange can increase the rigidity of the door housing along the periphery of the aforementioned intake port. The aforementioned connecting guide facilitates the assembly of the aforementioned intake duct and the aforementioned first door.

[0048] According to one embodiment, the first door may include: a door shell disposed toward the storage room and having an intake port; and a door inner shell housed inside the door shell and having an inlet port that is fluidly connected to the intake port.

[0049] The aforementioned intake duct may include: a first connecting portion protruding from the front end of the aforementioned bend, thereby connecting to the upper surface of the aforementioned inner door shell; and a second connecting portion protruding downward from the front end of the aforementioned bend, thereby connecting to the back surface of the aforementioned inner door shell. The aforementioned inlet may be disposed between the aforementioned first connecting portion and the aforementioned second connecting portion.

[0050] Therefore, the first connecting portion and the second connecting portion can improve the rigidity of the inner shell of the door along the periphery of the inlet.

[0051] According to one embodiment, the first door may include: a door frame disposed toward the second door; a door shell disposed from the door frame toward the storage room; an intake port communicating with the storage room and formed on the upper side of the door shell; a door inner shell housed inside the door shell to form the storage portion; and an inlet port formed on the upper back side of the door inner shell toward the storage room and fluidly connected to the intake port.

[0052] The aforementioned intake duct can extend from the aforementioned intake port to the aforementioned inlet port. The aforementioned intake port can be positioned higher than the aforementioned inlet port. This allows for the smooth maintenance of the airflow.

[0053] According to one embodiment, the above-mentioned intake air duct includes: a first protruding column portion, which is formed inside the air duct body and protrudes from one side to the opposite side in a vertical direction, thereby supporting the inner side of the air duct body.

[0054] The aforementioned intake duct may further include: a second protruding column portion, which is formed inside the aforementioned bend portion, protruding from one side to the opposite side along a direction inclined at a predetermined angle relative to the aforementioned vertical direction, thereby supporting the inner side surface of the aforementioned bend portion.

[0055] According to other embodiments, the aforementioned air conditioning supply device can be located on the side of the first door. Therefore, the air conditioning supply device can supply air to the storage section through the side of the first door.

[0056] According to other embodiments, the first door may include: a door shell disposed toward the storage room; an intake port formed on the lower side of the door shell; an inner door shell housed inside the door shell; and an inlet port formed on the lower side of the inner door shell in communication with the intake port.

[0057] The aforementioned air supply device may include: a first mesh section installed at the aforementioned inlet; a second mesh section installed at the aforementioned inlet; and a fan housing section attached to one side of the aforementioned air intake duct connecting the aforementioned inlet and the aforementioned inlet, housing the aforementioned cooling fan.

[0058] Therefore, the aforementioned air supply device can supply air to the aforementioned storage compartment through the lower side of the first door.

[0059] Invention Effects

[0060] According to embodiments of the present invention, the following effects can be achieved.

[0061] First, the air conditioning supply device can be embedded in the upper part of the first door. The air conditioning supply device includes a cooling fan that draws in the cold air from the refrigerator compartment and circulates it. The cooling fan can be located inside the intake port formed on the rear side of the first door.

[0062] The aforementioned suction inlet is formed at the upper end of the door shell. The aforementioned suction inlet is housed in the refrigerator compartment and can be fluidly connected to the refrigerator compartment.

[0063] The air supply device includes an intake duct that forms part of the air circulation path. The intake duct is fluidly connected to the intake port and the inlet of the first door. The inlet may be formed on the upper part of the back side of the inner shell of the door.

[0064] The front end of the intake duct is fluidly connected to the aforementioned inlet. At the rear end of the intake duct, which communicates with the aforementioned intake inlet, the aforementioned cooling fan is arranged at an angle downward toward the refrigerator compartment.

[0065] Therefore, the cooling fan can draw in cold air from the refrigerator compartment through the intake. The intake duct can then supply the cold air drawn in by the cooling fan to the upper part of the first door's storage section for circulation.

[0066] Therefore, the air supply device supplies cold air from the refrigerator compartment to the storage section of the first door through a cooling fan and an air intake duct, thereby cooling the storage section.

[0067] Second, the cold air supply device circulates the cold air in the refrigerator compartment through a cooling fan and an intake duct so that the cold air in the refrigerator compartment passes through the receiving section of the first door, thereby enabling the temperature of the receiving section to reach the refrigerator compartment level.

[0068] Third, the first door itself has an air intake duct to circulate cold air in the refrigerator compartment, instead of using a separate cabinet to embed the air duct, which can improve the refrigerator's heat insulation performance.

[0069] Fourth, the air supply device supplies cold air to the upper part of the storage section through a cooling fan and an intake duct, thereby ensuring smooth air circulation in the storage section.

[0070] Fifth, the intake air duct includes an upper air duct and a lower air duct. A cooling fan is installed in the upper air duct. The upper air duct is combined with the lower air duct in such a way that it covers the upper side of the lower air duct. The upper and lower air ducts accommodate the cooling fan and form a flow path for cold air.

[0071] However, the cooling fan is configured to tilt downwards and backwards from the user's line of sight, so that the user can see the lower end of the cooling fan through the inlet. This not only harms the product's appearance, but may also reduce the product completion rate.

[0072] Furthermore, users' fingers may come into contact with the cooling fan through the inlet, potentially causing their fingers to get caught when the cooling fan is running.

[0073] To solve this problem, the intake duct includes a first bend that bends forward and a second bend that bends downward in the aforementioned forward direction.

[0074] The first bend includes a first lower bend. The first lower bend bends at an angle from the front end of the lower air duct toward the forward direction. The second bend includes a second lower bend. The second lower bend bends at an angle downward from the front end of the first lower bend toward the forward direction.

[0075] Using the horizontal line at the lowest point of the lower air duct in the front-to-back direction as a reference, the height of the second lower bend is the same as or higher than the height of the highest point of the lower end of the cooling fan.

[0076] Thus, the intake air duct allows the movement of cold air through the first bend and the second bend, but the second lower bend of the second bend blocks the lower end of the cooling fan from the user's line of sight, thereby preventing not only the user's hands from approaching, but also the exposure of the cooling fan, thereby improving the product's finish and appearance quality. Attached Figure Description

[0077] Figure 1 This is a conceptual diagram showing what a refrigerator door looks like when installed on a refrigerator cabinet according to an embodiment of the present invention.

[0078] Figure 2 It is shown Figure 1 A concept image of what the second door of a refrigerator would look like when it's open relative to the first door.

[0079] Figure 3 It is shown Figure 2 A frontal view of the first door when the second door is open.

[0080] Figure 4 This shows the view from the rear. Figure 3 A 3D view of the back of the first door.

[0081] Figure 5 yes Figure 3 The cross-sectional view along VV is a conceptual diagram showing how the air conditioning supply device is embedded in the upper part of the first door.

[0082] Figure 6 It is magnification Figure 5 The enlarged view of section VI is a conceptual diagram showing the movement path of the cold air through the cold air supply device.

[0083] Figure 7 Looking from the front Figure 2 A 3D disassembly diagram showing the first door being removed.

[0084] Figure 8 Observation from the rear Figure 5 A 3D disassembly diagram showing the first door being removed.

[0085] Figure 9 It is shown Figure 2 A conceptual diagram showing the front end of the intercooler supply device connected to the fourth plate of the inner shell of the first door.

[0086] Figure 10 It is a conceptual diagram illustrating whether the user can see the cooling fan with the naked eye, based on the installation location of the cooling fan and the user's line of sight.

[0087] Figure 11 It is shown Figure 9 A three-dimensional view of the intercooling air supply unit.

[0088] Figure 12 This shows the view from the side. Figure 11 A side view of the air conditioning supply unit.

[0089] Figure 13 Viewed from above Figure 11 A top view of the air conditioning supply unit.

[0090] Figure 14 yes Figure 13 The cross-sectional view along XIV-XIV is a conceptual diagram showing how the bend in the intake air duct obstructs the cooling fan from the user's view.

[0091] Figure 15 It is shown Figure 14A frontal view of the air intake duct as seen from the front.

[0092] Figure 16A Looking from the front Figure 11 A 3D view showing the disassembly of the air conditioning supply unit.

[0093] Figure 16B Observation from the rear Figure 11 A 3D view showing the disassembly of the air conditioning supply unit.

[0094] Figure 17 Viewed from the bottom Figure 16A A concept image showing the cooling fan installed in the upper air duct.

[0095] Figure 18 This is a front view of the air conditioning supply device located on the side of the first door, as seen from the front, according to another embodiment of the present invention.

[0096] Figure 19 Viewed from the side Figure 18 A side view showing the intercooling air supply device located on the side of the first door.

[0097] Figure 20 yes Figure 19 A three-dimensional view showing the disassembly of the air conditioning supply unit.

[0098] Figure 21 It is shown Figure 20 A three-dimensional view of the intercooling air supply unit.

[0099] Figure 22 This shows the view from above. Figure 21 A top view of the air conditioning supply unit.

[0100] Figure 23 This shows a side view. Figure 21 A side view of the air conditioning supply unit.

[0101] Figure 24 It is shown Figure 21 A 3D view showing the disassembly of the air conditioning supply unit.

[0102] Figure 25 This is a conceptual diagram illustrating the concealed structure of an intake duct according to yet another embodiment of the present invention.

[0103] Figure 26 This is a conceptual diagram illustrating the structure of the bend in the intake duct according to yet another embodiment of the present invention. Detailed Implementation

[0104] The refrigerator of the present invention will now be described in detail with reference to the accompanying drawings. When labeling the constituent elements of the various drawings, the same reference numerals are used for the same constituent elements even if they are shown in different drawings. Furthermore, when describing the embodiments of the present invention, detailed descriptions of related well-known structures or functions are omitted if it is determined that such detailed descriptions would hinder the understanding of the embodiments of the present invention.

[0105] 1. Terminology Definition

[0106] When describing the constituent elements of embodiments of the present invention, terms such as first, second, A, B, (a), and (b) are sometimes used. These terms are only used to distinguish the corresponding constituent element from other constituent elements; the nature, order, or sequence of the corresponding constituent elements are not limited by these terms. Terms including ordinal numbers such as first and second can be used to describe multiple constituent elements, but the constituent elements are not limited to these terms. These terms are only used to distinguish one constituent element from other constituent elements.

[0107] When a constituent element is described as being "connected" or "joined" with other constituent elements, the connection or joint can be direct, but it should be understood that other constituent elements may exist in between. Conversely, when a constituent element is described as being "directly connected" or "directly joined" with other constituent elements, it should be understood that no other constituent elements exist in between. Unless the context clearly indicates a different meaning, the singular expressions used in this specification include plural expressions.

[0108] The terms “front side,” “rear side,” “left side,” “right side,” “upper side,” and “lower side” used in the following description should be based on Figure 1 Explanation of the coordinate system shown.

[0109] The first door used in the following description can be named the inner door or the main door. The second door can be named the outer door or the secondary door.

[0110] The front surface of the second door forms the exterior appearance of the refrigerator door. The back surface of the second door faces the first door.

[0111] The front surface of the first door forms the appearance of the front surface of the first door and faces the back of the second door. The back of the first door faces the cabinet or storage room.

[0112] In the following description, a bend can be understood as an inclined portion that tilts in one direction. For example, a first bend can be understood as a first inclined portion, and a second bend can be understood as a second inclined portion.

[0113] 2. Description of the refrigerator structure according to an embodiment of the present invention

[0114] The components of a refrigerator according to an embodiment of the present invention will now be described with reference to the accompanying drawings.

[0115] Figure 1 This is a conceptual diagram showing a refrigerator cabinet 100 with refrigerator doors 104 and 128 installed on it, according to an embodiment of the present invention.

[0116] Figure 2 It is shown Figure 1 A concept image of the second door 124 of the refrigerator being open relative to the first door 105.

[0117] Figure 3 It is shown Figure 2 A frontal view of the first door 105 as seen from the front with the second door 124 open.

[0118] Figure 4 This shows the view from the rear. Figure 3 A 3D view of the back of the first door, which looks like 105.

[0119] Figure 5 yes Figure 3 The cross-sectional view along VV is a conceptual diagram showing how the air supply device 130 is embedded in the upper part of the first door 105.

[0120] Figure 6 It is magnification Figure 5 The enlarged view of section VI is a conceptual diagram showing the movement path of the cold air through the cold air supply device 130.

[0121] Figure 7 Looking from the front Figure 2 A 3D disassembly diagram showing the first door (105) being disassembled.

[0122] Figure 8 Observation from the rear Figure 5 A 3D disassembly diagram showing the first door (105) being disassembled.

[0123] Figure 9 It is shown Figure 2 A conceptual diagram showing the front end of the intercooler supply device 130 connected to the fourth plate 1084 of the inner shell 108 of the first door 105.

[0124] The refrigerator includes a cabinet 100. The cabinet 100 has a storage compartment 101 inside. The storage compartment 101 houses items for refrigeration and freezing. The refrigerator includes a door. The door is hinged to one side of the cabinet 100 in a rotatable manner; for example, it is hinged to the front side. Thus, the door can open and close the storage compartment 101.

[0125] Storage compartment 101 can be divided into a refrigerator compartment 102 and a freezer compartment 103 by a partition wall. The refrigerator compartment 102 and the freezer compartment 103 can be divided in the vertical or horizontal direction of the cabinet 100. This embodiment shows the vertical division. The refrigerator compartment 102 can be located in the upper part of the cabinet 100. The refrigerator compartment 102 can be located on the left and right sides of the cabinet 100, respectively.

[0126] The freezer compartment 103 can be located at the bottom of the cabinet 100. The freezer compartment 103 can be located on the left and right sides of the cabinet 100.

[0127] In other embodiments, the refrigerator compartment 102 may be located at the lower part of the cabinet 100, and the freezer compartment 103 may be located at the upper part of the cabinet 100.

[0128] The doors may include a refrigerator door 104 for opening and closing the refrigerator compartment 102 and a freezer door 128 for opening and closing the freezer compartment 103.

[0129] The refrigerator door 104 may include an ice-making unit 116, which will be described later.

[0130] The refrigerator door 104 or the freezer door 128 may include at least two doors. This embodiment shows the refrigerator door 104 having two doors.

[0131] The refrigerator door 104 may include a first door 105. The first door 105 may be mounted on the front surface of the cabinet 100 in a manner that allows it to rotate relative to the cabinet 100 about a first hinge. Thus, the first door 105 can open and close the storage compartment 101.

[0132] The first door 105 can be configured to include a first door frame 106 and a door shell 107.

[0133] The first door frame 106 can be formed into a quadrilateral frame shape. The first door frame 106 is positioned at the front of the first door 105.

[0134] The door housing 107 may include an inner door housing 108 and an outer door housing 114. A heat insulation wall 115 may be provided between the inner door housing 108 and the outer door housing 114.

[0135] The inner door shell 108 is mounted on the back of the first door frame 106. The inner door shell 108 may include a first mounting guide 1080, a first plate 1081, a plurality of second plates 1082a, 1082b, a third plate 1083, and a fourth plate 1084. The first mounting guide 1080 extends along the front edge of the inner door shell 108 in both vertical and horizontal directions.

[0136] The first installation guide 1080 guides the installation position so that the inner door shell 108 can be easily installed on the front surface of the first door frame 106.

[0137] A first plate 1081 is disposed on the upper side of the first mounting guide 1080. The first plate 1081 can be formed by protruding rearward from the upper side of the first mounting guide 1080. The first plate 1081 can extend obliquely relative to the horizontal line. The first plate 1081 can extend long in the left-right direction. The first plate 1081 can form the upper surface of the inner shell 108 of the door.

[0138] Second plates 1082a and 1082b can be configured on the left and right sides of the back of the first mounting guide 1080. Multiple second plates 1082a and 1082b are configured separately in the left-right direction. Second plates 1082a and 1082b can extend elongatedly in the vertical direction. Second plates 1082a and 1082b can form the left and right sides of the inner shell 108 of the door.

[0139] The first board 1081 can be connected to the top of each of multiple second boards 1082a and 1082b.

[0140] The third plate 1083 can be disposed on the lower side of the back of the first mounting guide 1080. The third plate 1083 can extend longitudinally in the left-right direction. The third plate 1083 can connect to the lower end of each of the plurality of second plates 1082a, 1082b. The third plate 1083 can form the lower surface of the inner shell 108 of the door.

[0141] The fourth plate 1084 can be formed into a rectangle. The fourth plate 1084 can extend long in the vertical direction. The fourth plate 1084 can be connected to the first plate 1081 and multiple second plates 1082a, 1082b. The fourth plate 1084 can form the back of the inner shell 108 of the door.

[0142] The first door 105 has storage sections 109 and 121 for storing items. The storage sections 109 and 121 may include a first storage section 109 and a second storage section 121. The first storage section 109 may be formed by a first plate 1081, a plurality of second plates 1082a and 1082b, and a fourth plate 1084.

[0143] The first storage section 109 can be formed into a rectangle. The first storage section 109 can be extended to be longer in the vertical direction than in the horizontal direction.

[0144] A basket 110 may be provided in the first storage section 109. The basket 110 may support food containers, etc. The basket 110 may be configured to overlap with the ice-making unit 116 in the front-back direction. A virtual line may be drawn along the front-back direction in the area where the basket 110 is located, and this virtual line may pass through the ice-making unit 116.

[0145] The basket 110 can be formed into a rectangular shape. The basket 110 can extend long in the left and right direction. The upper side of the basket 110 can be open upward. The rear side of the basket 110 can be open towards the first heat insulation wall 1151.

[0146] The basket 110 may be composed of a first wall 111, multiple second walls 112, and a third wall 113. The first wall 111 may be rectangular. The first wall 111 may extend to be longer in the left-right direction than in the front-back direction. The first wall 111 may form the bottom surface of the basket 110.

[0147] Multiple second walls 112 can extend upward from both ends of the first wall 111 in the left and right directions, respectively. The second walls 112 can be formed in the shape of a trapezoid or a rectangle. The shape of the second walls 112 is not limited to these. The multiple second walls 112 can respectively form the left and right sides of the basket 110.

[0148] The second wall 112 can be extended to be longer in the vertical direction than in the front-back direction. The front-back length of the second wall 112 can be formed to correspond to the front-back length of the first wall 111.

[0149] The third wall 113 can be formed as a quadrilateral. The third wall 113 can protrude upward from the front end of the first wall 111 or be arranged in a near-vertical manner with respect to the vertical direction. The third wall 113 can form the front surface of the basket 110.

[0150] As an example, compared to the lower end of the third wall 113, the upper end of the third wall 113 protrudes further forward from the first wall 111. The front-rear length of the upper end of the second wall 112 can be made longer than the front-rear length of the lower end of the second wall 112.

[0151] The rear ends of the first wall 111 and the second wall 112 can be configured to separate from the first heat insulation wall 1151 in the front-rear direction. The gap between the rear end of the basket 110 and the first heat insulation wall 1151 is set to a level that prevents the container stored in the basket 110 from falling downwards.

[0152] The distance between the front end of the basket 110 and the inner surface of the second door 124 can be different from the distance between the rear end of the basket 110 and the first heat insulation wall 1151. In this embodiment, the distance between the front end of the basket 110 and the inner surface of the second door 124 is shown to be smaller than the distance between the rear end of the basket 110 and the first heat insulation wall 1151.

[0153] An ice-making unit 116 can be disposed on the back of the first storage section 109. With the first door 105 closed as a reference, the ice-making unit 116 can be disposed between the storage compartment 101 and the first storage section 109.

[0154] When the first door 105 is closed, the first storage section 109 can be configured in the opposite direction to the storage room 101, with reference to the ice-making unit 116. The first storage section 109 and the ice-making unit 116 can be configured to overlap at least partially in the front-back direction, separated by the first heat insulation wall 1151.

[0155] As an example, the first storage section 109 can be entirely included within the area of ​​the ice-making unit 116. If a virtual line is drawn along the front-back direction in the area where the first storage section 109 is located, the virtual line can pass entirely through the ice-making unit 116.

[0156] The ice-making unit 116 can transfer heat or cold to the first storage section 109 through the first heat insulation wall 1151.

[0157] Therefore, the ice-making unit 116 can play a significant role in reducing the heat insulation load of the first storage section 109 when cooling it. Here, the heat insulation load refers to the heat required for cooling.

[0158] Preferably, the first heat insulation wall 1151 between the first storage section 109 and the ice-making unit 116 has an appropriate thickness. If the thickness of the first heat insulation wall 1151 is excessively reduced, the heat insulation load of the first storage section 109 can be significantly reduced, but there is a problem of condensation on the surface of the second door 124 due to the temperature difference.

[0159] To prevent condensation on the surface of the second door 124, the thickness of the first insulation wall 1151 is above a predetermined value.

[0160] It should be noted that if the thickness of the first insulation wall 1151 is too thick, the insulation load of the ice-making unit 116 can be greatly reduced, but it will not only increase the insulation load of the first storage part 109, but also make it difficult to cool the temperature of the first storage part 109 to the temperature of the refrigerator compartment 102 by relying solely on cold air circulation.

[0161] Furthermore, in order to raise the temperature of the first storage section 109 to the temperature of the refrigerator compartment 102, additional cooling measures are required to lower the temperature.

[0162] A second storage section 121 may be provided at the lower part of the first storage section 109. The first storage section 109 and the second storage section 121 are fluidly connected in the vertical direction.

[0163] The vertical length of the first storage section 109 can be the same as or longer than that of the second storage section 121. In this embodiment, the vertical length of the first storage section 109 is shown to be greater than that of the second storage section 121.

[0164] The length of the second storage section 121 in the front-to-back direction can be the same as or longer than that of the first storage section 109. In this embodiment, the second storage section 121 is shown to have a front-to-back length greater than that of the first storage section 109. Therefore, compared to the first storage section 109, the second storage section 121 can accommodate items with a wider front-to-back width.

[0165] An exhaust outlet 122 may be provided at the rear of the second storage section 121. The exhaust outlet 122 may be formed in the lower part of the fourth plate 1084 in a through-flow manner. The exhaust outlet 122 may communicate with the storage chamber 101 to allow cold air passing through the first storage section 109 and the second storage section 121 to be ejected from the storage chamber 101 of the cabinet 100.

[0166] The inner door housing 108 can be housed inside the outer door housing 114. A portion of the outer door housing 114 can be housed in the storage compartment 101 of the cabinet 100. The outer door housing 114 may include a second mounting guide 1140, a first cover 1141, a plurality of second covers 1142a, 1142b, a third cover 1143, and a fourth cover 1144.

[0167] The second installation guide 1140 extends along the front edge of the door housing 114 in both vertical and horizontal directions.

[0168] The second installation guide 1140 can be installed on the back of the first door frame 106. The second installation guide 1140 guides the installation position so that the door outer shell 114 and the door inner shell 108 can be easily installed on the back of the first door frame 106.

[0169] The first cover 1141 can be formed by projecting rearward from the upper side of the second mounting guide 1140. The first cover 1141 can extend obliquely relative to the horizontal line. The front end of the first cover 1141 can be configured to overlap the rear end of the first plate 1081 in the vertical direction. The first cover 1141 can extend elongatedly in the horizontal direction. The first cover 1141 can form the upper surface of the door shell 114.

[0170] Second covers 1142a and 1142b can be configured on the left and right sides of the rear of the second mounting guide 1140. Multiple second covers 1142a and 1142b are configured separately in the left-right direction. Second covers 1142a and 1142b can extend elongatedly in the vertical direction. Second covers 1142a and 1142b can form the left and right sides of the door housing 114.

[0171] The first cover 1141 can be connected to the upper end of each of the multiple second plates 1142a and 1142b.

[0172] The third cover 1143 can be disposed on the lower side of the back of the second mounting guide 1140. The third cover 1143 can extend elongated in the left-right direction. The third cover 1143 can connect to the lower end of each of the plurality of second covers 1142a, 1142b. The third cover 1143 can form the lower surface of the door shell 114.

[0173] The fourth cover 1144 can be rectangular. The fourth cover 1144 can extend elongated in the vertical direction. The fourth cover 1144 can be connected to the first cover 1141 and a plurality of second covers 1142a, 1142b. The fourth cover 1144 can form the back or a portion of the back of the door shell 114.

[0174] This embodiment shows what the fourth cover 1144 looks like as part of the back side of the door housing 114. The fourth cover 1144 can extend through to form an ice-making chamber opening in the front-to-back direction.

[0175] In this case, the rear cover 1145 can be installed on the back of the fourth cover 1144 to cover the ice-making chamber opening.

[0176] An ice-making shell 117 may be provided on the upper inner side of the door shell 114. The ice-making shell 117 may be formed into a rectangular shape. The ice-making shell 117 may extend long in the vertical direction.

[0177] The first plate 1081, multiple second plates 1082a, 1082b, and a fourth plate 1084 of the inner shell 108 are located in front of the ice-making shell 117. The fourth plate 1084 is configured to overlap with the ice-making shell 117 in the front-back direction.

[0178] The front-to-back length of the first plate 1081 and the plurality of second plates 1082a and 1082b of the inner shell 108 is less than the front-to-back length of the first cover 1141 and the plurality of second covers 1142a and 1142b of the outer shell 114.

[0179] The front surfaces of the fourth plate 1084 and the ice-making shell 117 can be separated from each other. The upper surface and left and right sides of the ice-making shell 117 can be configured to be separated from the first cover 1141 and the plurality of second covers 1142a and 1142b of the door shell 114, respectively.

[0180] An ice-making chamber 118 can be formed inside the ice-making shell 117. An ice-making unit 116 can be housed in the ice-making chamber 118.

[0181] The ice-making unit 116 can be configured to include a water supply unit, a cold air supply module, an ice-making module, an ice-removing module, an ice storage box, and an ice supply module. Thus, ice stored in the ice storage box can be retrieved when requested by the user.

[0182] The ice supply module can operate when ice is removed. KR20230094436A discloses information regarding... Figure 8 as well as Figure 9 The technology of the ice-making unit and the flow path for supplying cold air to the ice maker can be included in the description of this invention. Various other ice-making unit technologies can also be applied to this invention.

[0183] The heat insulation wall 115 encloses the ice-making shell 117, thereby shielding the ice-making chamber 118 from heat transfer between the ice-making chamber 118 and the storage chamber 101, or between the ice-making chamber 118 and the receiving portions 109, 121 of the first door 105. Thus, the heat insulation wall 115 prevents the ice generated in the ice-making unit 116 from melting.

[0184] The insulation wall 115 can be formed by foaming PU foam (polyurethane foam).

[0185] The heat insulation wall 115 may include a first heat insulation wall 1151, a second heat insulation wall 1152, and a third heat insulation wall 1153.

[0186] The first heat insulation wall 1151 can be disposed between the fourth plate 1084 and the front surface of the ice-making chamber 118. Thus, the first heat insulation wall 1151 can shield the heat transfer between the ice-making chamber 118 and the storage portions 109, 121 of the first door 105.

[0187] The second heat insulation wall 1152 can be installed on the back of the door housing 114. The second heat insulation wall 1152 can be disposed on the inner surface of the rear cover 1145 through the ice-making chamber opening. Thus, the second heat insulation wall 1152 can shield the heat transfer between the ice-making chamber 118 and the storage chamber 101.

[0188] The third heat insulation wall 1153 is disposed between the first cover 1141 and the upper surface of the ice-making shell 117, and between the inner surfaces of the multiple second covers 1142a and 1142b and the left and right sides of the ice-making shell 117, thereby being able to wrap the upper surface and left and right sides of the ice-making shell 117.

[0189] A chute 119 may be provided at the lower part of the ice-making unit 116. The chute 119 is configured to guide the ice-making unit 116 to discharge ice cubes. A funnel 120 may be provided at the lower part of the ice-making unit 116. The funnel 120 is configured to drop ice cubes into a user's holding container. The holding container includes cups and the like, and its shape is not limited as long as it can hold ice cubes.

[0190] An air duct 123 can be provided on the lower inner side of the door shell 114. The air duct 123 is located at the lower part of the ice-making shell 117. The air duct 123 can be formed into a rectangular tube. The air duct 123 can extend in the front-back direction.

[0191] The exhaust duct 123 can be formed through the door housing 114 in the front-to-back direction. A portion of the left and right sides of the exhaust duct 123 can be formed through the door housing 114 in the left-to-right direction (see...). Figure 8 ).

[0192] The front end of the ejector duct 123 is connected in communication with the ejector outlet 122. The rear end of the ejector duct 123 is connected in communication with the storage chamber 101.

[0193] The upper surface, left and right sides, and lower surface of the exhaust duct 123 can be covered by the third heat insulation wall 1153. The exhaust duct 123 can be arranged behind the second storage section 121.

[0194] The refrigerator door 104 may also include a second door 124. The second door 124 may be disposed on the front surface of the first door 105. The second door 124 may be mounted on the front surface of the first door 105 in a manner that allows it to rotate relative to the first door 105 with regard to a second hinge. Thus, the second door 124 can open and close the storage portions 109 and 121 of the first door 105.

[0195] The second door 124 may include a second door frame 125. The second door frame 125 may be configured as a quadrilateral frame. The second door frame 125 may be configured to include multiple transparent panels 126a, 126b, and 126c. The multiple transparent panels 126a, 126b, and 126c may be configured to be separated in the front-to-back direction.

[0196] This embodiment shows a plurality of transparent plates 126a, 126b, and 126c arranged sequentially from the outside of the second door 124 to the inside of the second door 124, consisting of three plates: the first transparent plate 126a to the third transparent plate 126c. The first transparent plate 126a forms the exterior of the second door 124. The third transparent plate 126c forms the inner surface of the second door 124.

[0197] Multiple transparent panels 126a, 126b, and 126c can be connected by multiple connecting plates. The transparent panels 126a, 126b, and 126c can extend longitudinally in the vertical direction. As an example, multiple first connecting plates 127 connecting one end of the multiple transparent panels 126a, 126b, and 126c can extend in the horizontal direction. The multiple first connecting plates 127 can respectively connect to the upper and lower ends of the transparent panels 126a, 126b, and 126c.

[0198] Multiple second connecting plates (not shown) connecting the sides of multiple transparent panels 126a, 126b, and 126c can extend vertically. These multiple second connecting plates can connect to the left and right ends of the transparent panels 126a, 126b, and 126c, respectively.

[0199] The transparent panels 126a, 126b, and 126c allow light to pass through. Users can visually view the storage sections 109 and 121 of the first door 105 through the transparent panels 126a, 126b, and 126c.

[0200] Multiple transparent panels 126a, 126b, 126c and the heat insulation layer between them can serve as heat insulation. Thus, the transparent panels 126a, 126b, 126c and the heat insulation layer can cut off the heat transfer caused by the temperature difference between the outer side of the second door 124 and the storage parts 109, 121 of the first door 105.

[0201] In order to retrieve the ice produced by the ice-making unit 116, the user can open the second door 124.

[0202] The refrigerator includes a cold air supply device 130 that supplies cold air to the storage sections 109 and 121 of the first door 105.

[0203] The air supply device 130 can supply cold air in a cold air circulation manner. The air supply device 130 can circulate the cold air according to a certain circulation path. The air supply device 130 may include a cold air supply source and an intake air duct 132.

[0204] The air supply source may include a refrigerator compartment 102 and a cooling fan 150. The cooling fan 150 provides power to the air in the refrigerator compartment 102 so that the air circulates along the air circulation path.

[0205] The intake duct 132 is configured to connect the refrigerator compartment 102 with the storage sections 109 and 121 of the first door 105, which is the object to be cooled. The intake duct 132 forms part of the cold air circulation path. The cooling fan 150 and the intake duct 132 are installed in the first door 105.

[0206] The storage sections 109 and 121 of the first door 105 and the refrigerator compartment 102 can be separated in the front-to-back direction by the ice-making compartment 118. The intake air duct 132 is disposed on the upper side of the ice-making compartment 118, thereby connecting the upper side of the storage sections 109 and 121 and the upper side of the refrigerator compartment 102. The exhaust air duct 123 is disposed on the lower side of the ice-making compartment 118, thereby connecting the lower side of the storage sections 109 and 121 and the lower side of the refrigerator compartment 102.

[0207] The cooling fan 150 and the intake air duct 132 are described in further detail below.

[0208] The cold air circulation path allows cold air to circulate between the storage compartment 101 of the cabinet 100 and the storage sections 109 and 121 of the first door 105. In this embodiment, the cold air can circulate between the refrigerator compartment 102 and the storage sections 109 and 121 along the cold air circulation path.

[0209] An intake port 131 can be formed in the first cover 1141 of the door housing 114. The door housing 114 can be housed in the refrigerator compartment 102. Thus, the intake port 131 can be connected in communication with the refrigerator compartment 102. An intake duct 132 can be provided between the intake port 131 and the first receiving part 109.

[0210] The intake duct 132 can be fluidly connected to the intake port 131 and the first receiving part 109. One side of the intake duct 132 can be connected to the intake port 131. The other side of the intake duct 132 can be connected in communication with the first receiving part 109.

[0211] The inlet 131 and the air intake duct 132 can supply cold air to the upper side of the first storage section 109 so that the cold air passes through the storage sections 109 and 121 of the first door 105.

[0212] The intake duct 132, the receiving sections 109 and 121, the exhaust duct 123, and the refrigerator compartment 102 can form a cold air circulation path. With the first door 105 and the second door 124 closed, the cold air circulation path can be configured as a closed loop.

[0213] The cooling fan 150 is configured to draw in cold air from the refrigeration compartment 102. The cooling fan 150 can be formed in a quadrilateral box shape. Depending on the shape of the fan, the cooling fan 150 can also be named a box fan. The cooling fan 150 can be an axial fan. An axial fan directs the airflow in the axial direction.

[0214] The cooling fan 150 can be configured to include a fan frame 151, a bracket 152, a hub 153, an electric motor 154, and multiple blades 155. The fan frame 151 can be formed into a quadrilateral shape. The fan frame 151 forms the outer shape of the cooling fan 150.

[0215] A circular hollow section can be formed along the axial direction inside the fan frame 151. The hub 153 and the blade 155 can be rotatably accommodated in the hollow section.

[0216] The bracket 152 is located on the lower inner side of the fan frame 151. The bracket 152 can be formed in the shape of a disc. The bracket 152 can be configured on the lower part of the hub 153, which will be described later. The bracket 152 can support the electric motor 154. The bracket 152 can be connected to the fan frame 151 by a plurality of connecting ribs 1521.

[0217] A connecting rib 1521 can be formed by protruding from the outer periphery of the bracket 152 onto the inner periphery of the fan frame 151. Multiple connecting ribs 1521 can be circumferentially separated along the periphery of the inner periphery of the fan frame 151. One end of the connecting rib 1521 can be connected to the bracket 152. The other end of the connecting rib 1521 can be connected to the inner periphery of the fan frame 151.

[0218] The electric motor 154 is mounted on the upper part of the bracket 152. The electric motor 154 can be housed inside the hub 153. Thus, the electric motor 154 can be supported by the bracket 152.

[0219] The electric motor 154 has a rotating shaft 1541. The rotating shaft 1541 can be coupled to the inside of the wheel hub 153. Thus, the rotating shaft 1541 can transmit the power of the electric motor 154 to the wheel hub 153.

[0220] The hub 153 can be formed into a cylindrical shape. The hub 153 is rotatably disposed inside the hollow portion. The hub 153 can be connected to and supported by the rotating shaft 1541 of the electric motor 154.

[0221] Multiple blades 155 can be formed protruding from the outer peripheral surface of the hub 153 toward the inner peripheral surface of the fan frame 151. The multiple blades 155 can be arranged separately in the circumferential direction along the outer peripheral surface of the hub 153.

[0222] The blade 155 can be formed to be tilted at a predetermined angle relative to the length direction of the hub 153. The blade 155 can be formed into a curved shape. When power is applied to the electric motor 154, the blade 155 and the hub 153 can rotate under the power of the electric motor 154.

[0223] Therefore, the cooling fan 150 can draw in air from the refrigerator compartment 102.

[0224] The cooling fan 150 can be located inside the intake 131. The cooling fan 150 is mounted on the first cover 1141. The cooling fan 150 can be embedded inside the first cover 1141. The cooling fan 150 is positioned on one side of the intake duct 132. One end of the intake duct 132 refers to the upstream side based on the direction of cold air flow. The cooling fan 150 can be positioned upstream of the intake duct 132. Thus, the cooling fan 150 can draw in cold air through the intake 131.

[0225] An inlet 156 can be formed on the upper rear side of the inner shell 108. The inlet 156 can be formed in a manner that extends through the front-rear direction at the upper end of the fourth plate 1084. The inlet 156 can extend in the left-right direction relative to its width in the vertical direction. The left-right length of the inlet 156 can be the same as or smaller than the left-right length of the fourth plate 1084. In this embodiment, the left-right length of the inlet 156 is shown to be smaller than the left-right length of the fourth plate 1084.

[0226] The inlet 156 can be configured to be connected to or near the rear end of the first cover 1141. This embodiment shows the inlet 156 configured to be connected to the rear end of the first cover 1141.

[0227] The first cover 1141 of the door outer shell 114 is located at a higher position than the first plate 1081 of the door inner shell 108. The first cover 1141 and the first plate 1081 can be arranged parallel to each other. The first cover 1141 and the first plate 1081 can each be formed to be tilted at a predetermined angle relative to the horizontal line.

[0228] The intake 131 of the outer shell 114 is located at a higher position than the inlet 156 of the inner shell 108. One end of the intake duct 132 is located at a higher position than the other end of the intake duct 132. As a result, cold air moves from the upper side to the lower side of the intake duct 132, thus enabling smooth flow of cold air.

[0229] An outlet 170 can be formed at the other end of the intake duct 132. The outlet 170 is connected in communication with the inlet 156 of the inner shell 108. The other end of the intake duct 132 refers to the downstream side based on the direction of cold air flow.

[0230] Therefore, the intake duct 132 can supply the cold air drawn in by the cooling fan 150 to the upper side of the first storage section 109. The reason for supplying cold air to the upper side of the first storage section 109 is to facilitate the circulation of cold air.

[0231] The temperature of the cold air is relatively lower than the temperature of the air in the first receiving section 109, therefore the density of the cold air is greater than the density of the air in the first receiving section 109, and thus the cold air falls in the direction of gravity. Therefore, the cold air can move from the first receiving section 109 to the second receiving section 121.

[0232] Furthermore, the cold air moves from the first storage section 109 to the second storage section 121, while simultaneously exchanging heat between the cold air and the ambient air. The air in the first storage section 109 can be cooled by the cold air. The air in the first storage section 109 can maintain the temperature of the refrigerator compartment 102.

[0233] Furthermore, the temperature of the cold air can rise through heat exchange with the air. The heated cold air can rise to the upper part of the first receiving section 109. That is, in the first receiving section 109, a portion of the cold air rises and falls and circulates through convection due to changes in temperature and density, thereby smoothly achieving heat exchange between the cold air and the air.

[0234] The following describes the air circulation path. Cold air moves from the refrigerator compartment 102 to the intake 131 through the suction of the cooling fan 150. The cold air is then drawn into the cooling fan 150 through the intake 131. The cold air, via the cooling fan 150, moves along the intake duct 132.

[0235] Next, the cold air flows from the outlet 170 of the intake duct 132 into the inlet 156 of the first receiving section 109.

[0236] Subsequently, the cold air flowing into inlet 156 can pass through basket 110. The left, right and front sides of basket 110 are blocked, but the rear side of basket 110 can be opened. The rear end of basket 110 is separated from the fourth plate 1084 of the inner shell 108 by a predetermined interval.

[0237] Thus, the cold air can be diverted into two paths as it passes through basket 110. The first of these two paths is the path through which the cold air flows to the outside of basket 110. For example, a portion of the cold air can move downwards through the gap between the back of the second door 124 and the front surface of the third wall 113 of basket 110.

[0238] The second of the two paths described above is the path through which cold air flows into the basket 110. For example, another portion of the cold air can move into the basket 110 through the upper and side openings of the second wall 112 and the third wall 113 of the basket 110.

[0239] After the cold air flowing into the basket 110 exchanges heat with the items contained inside the basket 110, it moves toward the rear of the basket 110 and can leak to the lower part of the basket 110 through the gap between the rear end of the first wall 111 and the front surface of the fourth plate 1084.

[0240] Multiple baskets 110 can be configured as a first basket 110a and a second basket 110b. The first basket 110a can be located on the upper side of the first storage section 109. The second basket 110b can be separated from the first basket 110 and disposed on the lower side of the first storage section 109.

[0241] The cold air is diverted to the first and second paths mentioned above, that is, diverted to the front and rear directions of the multiple baskets 110, so that it can pass through the first basket 110a and the second basket 110b.

[0242] Then, the cold air moves from the lower part of the basket 110 to the second storage section 121.

[0243] Next, cold air is ejected from the second storage section 121 of the first door 105 through the nozzle 122 and along the exhaust duct 123 into the refrigerator compartment 102.

[0244] After passing through the receiving parts 109 and 121 of the first door 105, the cold air can be drawn back into the intake port 131 in the refrigerator compartment 102.

[0245] The structure of the intake air duct 132 and the cooling fan 150 of the air supply device 130 will be described in further detail below.

[0246] Figure 10 Based on the installation position of the cooling fan 150 and the user's line of sight, this is a concept diagram illustrating whether the user can see the cooling fan 150 with the naked eye.

[0247] Figure 11It is shown Figure 9 A perspective view of the intercooling air supply device 130.

[0248] Figure 12 This shows the view from the side. Figure 11 A side view of the air conditioning supply unit 130.

[0249] Figure 13 Viewed from above Figure 11 A top view of the air conditioning supply unit 130.

[0250] Figure 14 yes Figure 13 The cross-sectional view along XIV-XIV is a conceptual diagram showing how the bend 160 of the intake air duct 132 obstructs the cooling fan 150 from the user's line of sight.

[0251] Figure 15 It is shown Figure 14 The front view of the intake air duct 132 as seen from the front.

[0252] Figure 16A Looking from the front Figure 11 A three-dimensional view showing the disassembly of the air conditioning supply unit 130.

[0253] Figure 16B Observation from the rear Figure 11 A three-dimensional view showing the disassembly of the air conditioning supply unit 130.

[0254] Figure 17 Viewed from the bottom Figure 16A A concept image showing the intermediate cooling fan 150 installed in the upper air duct 134.

[0255] When the second door 124 is opened, the user can directly access the first storage section 109.

[0256] The inlet 156 of the first storage section 109 can be aligned with the user's eye level. If the intake duct 132 connected to the inlet 156 is formed as a horizontal straight line or as a straight line inclined relative to the horizontal direction, and the cooling fan 150 is configured to tilt downwards towards the refrigerator compartment 102, the following problem may occur. Here, "tilted downwards" means that the rear end of the cooling fan 150 is positioned lower than the front end of the cooling fan 150. The front end of the cooling fan 150 is positioned towards the first storage section 109. The rear end of the cooling fan 150 is positioned towards the refrigerator compartment 102.

[0257] For example, depending on the user's height, a tall adult can look directly at the inlet 156 of the first storage section 109 from the front and can see the cooling fan 150 with the naked eye through the inlet 156 (see reference). Figure 10 (a)).

[0258] The eye level of relatively short teenagers or children can be seen from below the inlet 156 of the first storage section 109, looking upwards at the inlet 156 and visually seeing the cooling fan 150 through the inlet 156 (see reference). Figure 10 (b)

[0259] The exposure of this cooling fan 150 could potentially reduce the product's appearance quality. Furthermore, when a user inserts their finger through the inlet 156, there is a risk of finger injury as the cooling fan 150 operates.

[0260] To solve this problem, the cooling fan 150a can be positioned above the intake air duct 132a. In this case, the location of the cooling fan 150a is concealed from the user's view through the air inlet 156, thus preventing the user from seeing the cooling fan 150a (see reference). Figure 10 (a)).

[0261] However, even if the cooling fan 150a is positioned above the intake air duct 132a, and the user's line of sight is angled upwards through the inlet 156, the user can see the cooling fan 150 (see reference). Figure 10 (b)

[0262] Furthermore, when the cooling fan 150a is positioned above the intake air duct 132a, in order to ensure the installation space for the cooling fan 150a, the height of the first door 105 needs to be further increased. Therefore, there is a problem that only the size of the first door 105 and the refrigerator is increased, while the storage space of the refrigerator is not increased.

[0263] If the cooling fan 150 is positioned at the lower part of the intake air duct 132, the installation space of the cooling fan 150 overlaps with the ice-making chamber 118, thus making it difficult to ensure the installation space of the cooling fan 150.

[0264] To address the problems described above, in this embodiment, the intake duct 132 includes at least one bend 160. The bend 160 is configured to obstruct the cooling fan 150 from the user's line of sight. The bend 160 refers to a portion of a component that is bent or folded from one direction to another.

[0265] The bend 160 bends a portion of the intake duct 132 between the inlet 156 and the cooling fan 150, so that the inlet 156 and the cooling fan 150 are horizontally offset from each other. The cooling fan 150 may be located behind the bend 160 (see reference). Figure 10 (d)).

[0266] Thus, the bend 160 conceals the cooling fan 150 between the inlet 156 and the cooling fan 150, so that the user cannot see the cooling fan 150 with the naked eye through the inlet 156.

[0267] The intake air duct 132 includes an air duct body 133. The air duct body 133 can accommodate a cooling fan 150. The air duct body 133 can form a cold air flow path. Depending on its position, the air duct body 133 can be composed of an upper air duct 134 and a lower air duct 135.

[0268] The upper air duct 134 is disposed above the lower air duct 135. The upper air duct 134 may be configured to include a plurality of first side walls 1341, a first rear wall 1342, and an upper wall 1345. The plurality of first side walls 1341 form the left and right sides of the upper air duct 134. The first rear wall 1342 may form the back side of the upper air duct 134. The upper wall 1345 may form the upper surface of the upper air duct 134.

[0269] As a result, the left and right sides, back, and upper surface of the upper air duct 134 are blocked, while the lower surface of the upper air duct 134 can be opened towards the lower air duct 135. The front end of the upper air duct 134 can be connected to the rear end of the first upper bend 162 described later in a continuous manner. A flow path is formed inside the upper air duct 134 to allow cold air to flow.

[0270] The lower air duct 135 can be configured to include a plurality of second side walls 1351, a second rear wall 1352, and a lower wall 1355. The plurality of second side walls 1351 form the left and right sides of the lower air duct 135. The second rear wall 1352 can form the back side of the lower air duct 135. The lower wall 1355 can form the lower surface of the lower air duct 135.

[0271] Therefore, the left and right sides, back, and lower surface of the lower air duct 135 are blocked, while the upper surface of the upper air duct 134 can be opened towards the upper air duct 134. The front end of the lower air duct 135 can be connected to the first lower bend 163 described later in a continuous manner. A flow path is formed inside the lower air duct 135 to allow cold air to flow.

[0272] The upper air duct 134 is joined to cover the upper part of the lower air duct 135. The edges of the upper air duct 134 and the edges of the lower air duct 135 can be joined together. One end of each of the plurality of first side walls 1341 and first rear walls 1342 can be joined to one end of each of the plurality of second side walls 1351 and second rear walls 1352 in the vertical direction.

[0273] One end of each of the plurality of first sidewalls 1341 and first rearwalls 1342 may overlap and combine with one end of each of the plurality of second sidewalls 1351 and second rearwalls 1352.

[0274] As an example, one end of each of the plurality of first sidewalls 1341 and first rearwalls 1342 may wrap around one end of each of the plurality of second sidewalls 1351 and second rearwalls 1352. A first engagement groove 1343 may be formed by recessing along the periphery of the inner surfaces of the first sidewalls 1341 and first rearwalls 1342.

[0275] A second engagement groove 1353 can be formed by recessing along the periphery of the outer surfaces of the second sidewall 1351 and the second rear wall 1352. A first engagement protrusion 1344 formed on the outer surfaces of the first sidewall 1341 and the first rear wall 1342 is inserted into the second engagement groove 1353, and a second engagement protrusion 1354 formed on the inner surfaces of the second sidewall 1351 and the second rear wall 1352 can be inserted into the first engagement groove.

[0276] Thus, one end of the first sidewall 1341 and the first rearwall 1342 can be joined together by wrapping around one end of the second rearwall 1352 of the second sidewall 1351 and engaging with each other. The outer surfaces of the first sidewall 1341, the first rearwall 1342, the second sidewall 1351, and the second rearwall 1352 can form the same plane.

[0277] A fan mounting portion 136 may be provided in the upper air duct 134. The fan mounting portion 136 may be formed by protruding upward from the upper wall 1345 of the upper air duct 134. The fan mounting portion 136 may be formed in the shape of a quadrilateral in order to enclose the cooling fan 150. The shape of the fan mounting portion 136 is not limited to this, and may be formed in various shapes depending on the shape of the cooling fan 150.

[0278] A fan receiving portion 137 can be formed inside the fan mounting portion 136 in a vertically penetrating manner. The cooling fan 150 can be received in the fan receiving portion 137. The fan receiving portion 137 can be formed in a shape corresponding to the cooling fan 150 to enclose the cooling fan 150. In this embodiment, it is shown as a quadrilateral shape.

[0279] Support ribs 1371 can be formed by protruding from the four corners of the lower side of the fan housing 137 toward the inner space of the fan housing 137. The support ribs 1371 can support the cooling fan 150 to prevent it from falling downwards. The support ribs 1371 can be formed in a triangular shape, but their shape is not limited to that shape as long as they can support the cooling fan 150, and can be formed in various shapes.

[0280] Therefore, the cold air can be drawn into the intake duct 132 after passing through the cooling fan 150 housed in the fan housing 137.

[0281] A recess 138 may be provided inside the fan mounting portion 136. The recess 138 is formed recessed around the fan receiving portion 137 to enclose the fan receiving portion 137. A portion of the upper surface of the upper air duct 134 may form the bottom surface of the recess 138.

[0282] A fan shroud 140 can be mounted on the upper side of the fan mounting portion 136. The fan shroud 140 may include a mesh portion 141 and a shroud extension 142. The mesh portion 141 is formed in a quadrilateral shape. The mesh portion 141 may have the same dimensions as the cooling fan 150. The mesh portion 141 is attached in a manner that covers the upper part of the cooling fan 150.

[0283] Multiple openings 1411 are formed inside the mesh portion 141. Thus, the mesh portion 141 allows cold air to pass through the openings 1411, but restricts the passage of impurities. The openings 1411 can extend in one direction. As an example, the openings 1411 can extend a long distance in the left-right direction. The multiple openings 1411 can be arranged separately in the front-back direction.

[0284] Multiple baffles 1412 may be provided on the lower side of the mesh portion 141. The baffles 1412 may be formed in the form of thin plates. The baffles 1412 may protrude downward from the lower surface of the mesh portion 141 toward the cooling fan 150. The baffles 1412 may extend in a direction orthogonal to the extension direction of the opening portion 1411, for example, they may extend in the vertical direction.

[0285] Therefore, the baffle 1412 can maintain a constant distance between the mesh section 141 and the cooling fan 150. Through the baffle 1412, cool air can move radially from the upper surface of the hub 153 through the distance between the mesh section 141 and the cooling fan 150, thereby smoothly maintaining the flow of cool air.

[0286] If there is no gap between the mesh section 141 and the cooling fan 150, the mesh section 141 divides the space into multiple openings 1411. As a result, when the cold air passes through the openings 1411 of the mesh section 141, the flow direction of the cold air is restricted from the upper surface of the hub 153 to the extending direction of the openings 1411, thus causing a flow resistance problem.

[0287] A cover extension 142 is provided on one side of the mesh portion 141. The cover extension 142 extends from one side of the mesh portion 141. The cover extension 142 is mounted on the upper side of the fan mounting portion 136 such that it covers the recess 138 of the fan mounting portion 136, excluding the fan receiving portion 137. The cover extension 142 can be formed in the shape of a quadrilateral plate. A fastening hole extending vertically through the cover extension 142 can be formed.

[0288] The recess 138 has a fastening part 139. The fastening part 139 can be formed by protruding upward from the bottom surface of the recess 138. A fastening groove can be formed inside the fastening part 139. Fastening components such as screws can be fastened into the fastening groove of the fastening part 139 after passing through the fastening hole of the cover extension 142.

[0289] Therefore, the fan cover 140 can be fastened to the upper air duct 134 of the intake air duct 132 by fastening components.

[0290] A flange 143 may be provided at the upper end of the fan mounting portion 136. The flange 143 may be formed into a quadrilateral shape. The flange 143 may be arranged perpendicularly to the protruding direction of the fan mounting portion 136.

[0291] The flange 143 may extend along its circumference in the left-right and front-back directions at the upper end of the fan mounting portion 136. The flange 143 may be formed by protruding from the upper end of the fan mounting portion 136 in the front-back and left-back directions.

[0292] The flange 143 can be configured to overlap vertically with the first cover 1141 of the door housing 114 along the periphery of the intake 131. The flange 143 can be disposed in face contact with the inner side of the first cover 1141.

[0293] Therefore, flange 143 facilitates the connection between fan mounting portion 136 and first cover 1141. Flange 143 restricts upward movement of fan mounting portion 136 through suction port 131 of first cover 1141. Flange 143 strengthens the rigidity of first cover 1141, which is weakened by suction port 131.

[0294] Multiple joints 1431 may be provided on the left and right sides of the flange 143. The joints 1431 may be formed into a cylindrical shape. The joints 1431 extend in the vertical direction.

[0295] The upper end of the joint 1431 can be connected to the flange 143, and the lower end of the joint 1431 is connected to the upper surface of the upper air duct 134. Fastening grooves can be formed downwards in the joint 1431.

[0296] Multiple first fastening holes 1146 can be formed through the first cover 1141 in the vertical direction. Fastening components such as screws can pass through the first fastening holes 1146 through the first cover 1141 and be fastened to the fastening groove 1432 of the joint 1431. Thus, the fastening components can fasten the upper air duct 134 of the intake air duct 132 to the first cover 1141.

[0297] A connecting guide 144 can be formed by projecting upward from the flange 143. The connecting guide 144 can be formed to correspond to the shape and size of the suction port 131. The connecting guide 144 can extend along the inner circumference of the suction port 131 in the left-right and front-back directions.

[0298] The outer peripheral surface of the guide member 144 can be configured to contact the inner peripheral surface of the suction port 131. The protrusion height of the guide member 144 can be equal to the thickness of the first cover 1141. Thus, the upper end surface of the guide member 144 can form a coplanar plane with the first cover 1141.

[0299] The guide member 144 restricts the movement of the upper air duct 134 in the front-back and left-right directions. The guide member 144 is configured to cover the outer side of the fan cover 140. The fan cover 140 is attached to the inner side of the guide member 144.

[0300] Therefore, the guide 144 can restrict the movement of the fan 140 in the front-back and left-right directions.

[0301] The intake air duct 132 may include an air duct flow path 157. The air duct flow path 157 may be provided on one side of the air duct body 133, for example, it may be provided on the front side. The air duct flow path 157 may include a first bend 161, a connecting part 164 and a second bend 167, which will be described later.

[0302] The airflow section 157 can be configured to include a first airflow section 157a and a second airflow section 157b.

[0303] The first airflow path 157a can be disposed on one side of the upper airflow path 134, for example, it can be disposed on the front side. The second airflow path 157b can be disposed on one side of the lower airflow path 135, for example, it can be disposed on the front side. The first airflow path 157a and the second airflow path 157b can be respectively disposed on the upper side and the lower side and combined with each other.

[0304] The first airflow path section 157a can be configured to include a first upper bend section 162, an upper connecting section 165, and a second upper bend section 168, which will be described later.

[0305] The second air duct flow path 157b can be configured to include a first lower bending portion 163, a lower connecting portion 166, and a second lower bending portion 169, as described later.

[0306] The first bend 161 may be composed of a first upper bend 162 and a first lower bend 163. The first upper bend 162 is disposed on one side of the upper air duct 134. Here, "one side of the upper air duct 134" refers to the downstream side of the upper air duct 134 based on the direction of airflow. Furthermore, "one side of the upper air duct 134" can be defined as the front end of the upper air duct 134.

[0307] The first upper bend 162 can be formed by tilting upward at a predetermined angle from the upper wall 1345 of the upper air duct 134. The first upper bend 162 is formed by tilting forward from the point where the front end of the fan mounting part 136 intersects with the upper wall 1345 of the upper air duct 134. Here, "front" can refer to the horizontal direction towards the second door 124 when the second door 124 is closed and the storage parts 109 and 121 of the first door 105 are closed. The rear end 1623 of the first upper bend 162 can be connected to the lower end of the front end of the fan mounting part 136 or the front end of the upper wall 1345 of the upper air duct 134.

[0308] The first upper bend 162 extends from one side of the upper air duct 134. The first upper bend 162 includes a first upper wall 1621 and a plurality of first upper side walls 1622. The first upper wall 1621 of the first upper bend 162 is connected to one side of the upper wall 1345 of the upper air duct 134. The first upper side walls 1622 of the first upper bend 162 are respectively connected to one side of the side wall of the upper air duct 134.

[0309] The first upper bend 162 can be formed by tilting forward from the front end of the upper air duct 134. The front end of the first upper bend 162 can be located at a higher position than the rear end 1623 of the first upper bend 162.

[0310] The first upper bend 162 can be formed by tilting upward relative to the second horizontal line H2 from the lower end of the front end of the fan mounting part 136. The second horizontal line H2 refers to the straight line at the point where the fan mounting part 136 intersects with the first air duct flow path part 157a in the front-to-back direction.

[0311] As an example, the second horizontal line H2 can represent the straight line at the point where the rear end 1623 of the first upper bend 162 and the front end of the fan mounting part 136 intersect in the front-rear direction.

[0312] The upper air duct 134 can be configured to tilt downwards at a predetermined angle relative to the second horizontal line H2. The rear end of the upper air duct 134 is located at a higher position than the front end of the upper air duct 134.

[0313] The cooling fan 150 can be tilted at a predetermined angle relative to the second horizontal line H2 inside the fan mounting portion 136. The cooling fan 150 can be tilted upward relative to the second horizontal line H2 toward the first upper bend portion 162. The front end of the cooling fan 150 is located at a higher position than the rear end of the cooling fan 150. The lower end of the front surface of the cooling fan 150 can be located at a higher position than or the same position as the lower end of the front surface of the fan mounting portion 136. The lower end of the rear surface of the cooling fan 150 can be located at a lower position than the lower end of the rear surface of the fan mounting portion 136. The lower end of the rear surface of the cooling fan 150 can be accommodated in the space inside the lower air duct 135.

[0314] As the front surface of the cooling fan 150 approaches the back of the cooling fan 150, the height of the lower end of the cooling fan 150 is further reduced from the lower wall 1355 of the lower air duct 135.

[0315] Most of the upper part of the cooling fan 150 is housed inside the fan mounting part 136 and does not protrude downwards toward the second horizontal line H2 via the lower air duct 135, thus it can be concealed by the fan mounting part 136.

[0316] However, if the lower end of the cooling fan 150 protrudes below the second horizontal line H2 along the lower air duct 135, and there is no concealed structure in front of the cooling fan 150 along the second horizontal line H2, for example, the intake air duct 132 is a straight line instead of a bend, then it may be exposed in front.

[0317] To prevent the lower end of the cooling fan 150 from being exposed to the user, it may include a first lower bend 163, a lower connecting portion 166, and a second lower bend 169, which will be described later. The first lower bend 163 may be formed by tilting upward at a predetermined angle from the lower air duct 135 toward the front relative to the first horizontal line H1.

[0318] A first lower bend 163 extends from one side of the lower air duct 135. The first lower bend 163 includes a first lower wall 1631 and a plurality of first lower side walls 1632. The first lower wall 1631 of the first lower bend 163 is connected to one side of the lower wall 1355 of the lower air duct 135. The first lower side walls 1632 of the first lower bend 163 are respectively connected to one side of the side wall of the lower air duct 135.

[0319] The first lower bend 163 can be formed by tilting upward relative to the first horizontal line H1 from the front end of the lower air duct 135. The front end of the first lower bend 163 can be located at a higher position than the rear end of the first lower bend 163. The first horizontal line H1 refers to a virtual horizontal line passing through the front end of the lower wall 1355 of the lower air duct 135.

[0320] Using the first horizontal line H1 as a reference, the height of the front end of the first lower bend 163 can be the same as or higher than the height of the second horizontal line H2. In this embodiment, it is shown that, using the first horizontal line H1 as a reference, the height of the front end of the first lower bend 163 is the same as the height of the second horizontal line H2. Using the first horizontal line H1 as a reference, the height of the front end of the first lower bend 163 can be the same as or higher than the height of the rear end 1623 of the first upper bend 162. The height between the first horizontal line H1 and the front end of the first lower bend 163 can be higher or the same as the height between the first horizontal line H1 and the rear end 1623 of the first upper bend 162. In this embodiment, using the first horizontal line H1 as a reference, the height of the front end of the first lower bend 163 can be the same as the height of the rear end 1623 of the first upper bend 162.

[0321] With reference to the first horizontal line H1, the height of the front end of the first lower bend 163 can be higher than or the same as the lower end of the front end of the cooling fan 150. The height between the first horizontal line H1 and the front end of the first lower bend 163 can be higher than or the same as the height between the first horizontal line H1 and the lower end of the front end of the cooling fan 150. In this embodiment, it is shown that, with reference to the first horizontal line H1, the height of the front end of the first lower bend 163 is the same as the lower end of the front end of the cooling fan 150.

[0322] The lower air duct 135 can be inclined downward at a predetermined angle relative to the first horizontal line H1 towards the first bend 161. The front end of the lower air duct 135 is connected to the rear end of the first lower bend 163. The rear end of the lower air duct 135 is located at a higher position than the front end of the lower air duct 135.

[0323] Therefore, the cold air from the cooling fan 150 can move more smoothly to the first bend 161 through the downward-sloping structure of the lower air duct 135.

[0324] The rotation axis 1541 of the cooling fan 150 can be configured to be slightly tilted in the front-to-back direction relative to the vertical. As a result, the air passing through the cooling fan 150 along the axial direction of the rotation axis 1541 can move more smoothly from the lower wall 1355 of the lower air duct 135 to the first bend 161.

[0325] A connecting portion 164 may be provided on one side of the first bend 161. The connecting portion 164 is configured to connect the first bend 161 and the second bend 167, which will be described later. The connecting portion 164 may be composed of an upper connecting portion 165 and a lower connecting portion 166.

[0326] One side of the first bend 161 can be considered as the front end of the first bend 161. Another side of the first bend 161 can be considered as the downstream side of the first bend 161 in the direction of cold air movement.

[0327] The upper connecting portion 165 is configured to connect the first upper bending portion 162 and the second upper bending portion 168, which will be described later. The upper connecting portion 165 includes an upper connecting wall 1651 and a plurality of upper connecting side walls 1652. The upper wall 1651 of the upper connecting portion 165 can be formed into a planar shape.

[0328] The upper connecting wall 1651 of the upper connecting portion 165 can extend parallel to the second horizontal line H2. The rear end of the upper connecting wall 1651 of the upper connecting portion 165 can be connected to the front end of the upper wall 1621 of the first upper bending portion 162.

[0329] The upper connecting sidewall 1652 can be connected to the first upper sidewall 1622 of the first upper bent portion 162.

[0330] The lower connecting portion 166 is configured to connect the first lower bending portion 163 and the second lower bending portion 169, which will be described later. The lower connecting portion 166 includes a lower connecting wall 1661 and a plurality of lower connecting side walls 1662.

[0331] The lower connecting wall 1661 of the lower connecting portion 166 can be formed as a curved surface in the shape of an arc or a straight line. In this embodiment, the lower connecting wall 1661 of the lower connecting portion 166 is shown as a gently curved surface in the shape of an arc. The lower connecting wall 1661 of the lower connecting portion 166 can be connected to the front end of the first lower bending portion 163.

[0332] The lower connecting sidewall 1662 can be connected to the first lower sidewall 1632 of the first lower bending portion 163.

[0333] A second bend 167 may be provided on one side of the connecting portion 164. One side of the connecting portion 164 may refer to the front end of the connecting portion 164. Another side of the connecting portion 164 may refer to the downstream side of the connecting portion 164 in the direction of airflow.

[0334] The second bend 167 can be composed of a second upper bend 168 and a second lower bend 169. The second upper bend 168 includes a second upper wall 1681 and a plurality of second upper side walls 1682. The second upper wall 1681 of the second upper bend 168 can be formed to slope forward and downward from the upper connecting wall 1651 of the upper connecting portion 165.

[0335] Based on the direction of cold air movement, the second upper sidewall 1682 of the second upper bend 168 can be formed to slope downward from the upper connecting wall 1651 of the upper connecting part 165 towards the downstream side of the upper connecting wall 1651.

[0336] The front end of the second upper wall 1681 of the second upper bend 168 is located at a lower position than the rear end of the second upper wall 1681.

[0337] The second sidewall 1351 of the second upper bend 168 can be connected to the upper connecting sidewall 1652 of the upper connecting part 165.

[0338] A first connecting portion 171 can be formed by protruding from the second upper wall 1681 of the second upper bend 168 toward the first plate 1081 of the inner shell 108. The first connecting portion 171 can be arranged to overlap in the vertical direction in such a way that it covers the rear end of the first plate 1081.

[0339] Thus, the first connecting portion 171 can be placed on and supported on the upper surface of the first plate 1081. The first connecting portion 171 can restrict the front end of the second upper bend 168 from moving downward while supported by the upper surface of the first plate 1081. The front end of the intake duct 132 can be supported by the first plate 1081 through the first connecting portion 171.

[0340] The second lower bend 169 includes a second lower wall 1691 and a plurality of second lower side walls 1692. The second lower wall 1691 of the second lower bend 169 may be formed to be inclined downward relative to the second horizontal line H2 from the lower connecting wall 1661 of the lower connecting portion 166.

[0341] Based on the direction of cold air movement, the second lower wall 1691 of the second lower bend 169 can be formed to slope downward from the lower connecting wall 1661 of the lower connecting part 166 toward the downstream side of the lower connecting wall 1661.

[0342] The front end of the second lower wall 1691 of the second lower bend 169 is located at a lower position than the rear end of the second lower wall 1691.

[0343] The second lower sidewall 1692 of the second lower bend 169 can be connected to the lower connecting sidewall 1662 of the lower connecting part 166.

[0344] A second connecting portion 172 can be formed by protruding downward along the fourth plate 1084 of the inner shell 108 on the second lower wall 169 of the second lower bend 169. The second connecting portion 172 can be configured to overlap the back of the fourth plate 1084.

[0345] Therefore, the second connecting portion 172 can be placed on the back side of the fourth plate 1084 and supported. The second connecting portion 172 can restrict the front end of the second lower bend 169 from moving forward while supported by the back side of the fourth plate 1084. The front end of the intake duct 132 can be supported by the fourth plate 1084 through the second connecting portion 172.

[0346] The inlet 156 is located at the corner where the rear end of the first plate 1081 of the inner shell 108 intersects with the upper end of the fourth plate 1084, which may reduce the strength of the connection between the first plate 1081 and the fourth plate 1084.

[0347] By adding the first connecting part 171 to the upper surface of the first plate 1081 so that it is located above the inlet 156, and adding the second connecting part 172 to the back surface of the fourth plate 1084 so that it is located below the inlet 156, the strength degradation caused by the inlet 156 can be compensated.

[0348] Multiple first protruding pillars 173 can be formed downwardly protruding from the inner side of the upper wall 1345 of the upper air duct 134. The first protruding pillars 173 can be formed into a cylindrical shape. The first protruding pillars 173 can extend in the vertical direction. A fastening groove is formed inside the first protruding pillars 173.

[0349] Multiple first protrusions 173 can clamp the cooling fan 150 and are respectively arranged on the left and right sides. The lower end of the first protrusion 173 can be arranged in a surface-contact manner on the inner surface of the lower wall 1355 of the lower air duct 135.

[0350] Multiple second fastening holes 174 can be formed through the lower air duct 135 in the vertical direction. The second fastening holes 174 are configured to overlap with the fastening groove of the first protrusion 173 in the vertical direction. First fastening components such as screws can pass through the second fastening holes 174 of the lower air duct 135 and be fastened to the fastening groove of the first protrusion 173. Thus, the upper air duct 134 and the lower air duct 135 can be fastened together by multiple first fastening components.

[0351] At least one second protruding post 175 may be formed protruding from the inner side of the upper wall 1345 of the first upper bend 162. In this embodiment, a second protruding post 175 is shown at the center of the inner side of the upper wall 1345 of the first upper bend 162.

[0352] The second protruding portion 175 can be formed into a cylindrical shape. A fastening groove is formed inside the second protruding portion 175. The second protruding portion 175 can extend at a predetermined angle relative to the first protruding portion 173. The second protruding portion 175 can be configured to be perpendicular to the first upper wall 1621 of the first upper bend portion 162.

[0353] The lower end of the second protruding column 175 can be disposed in a surface-contact manner on the inner surface of the first lower wall 1631 of the first lower bend 163.

[0354] At least one third fastening hole 176 can be formed through the first lower wall 1631 of the first lower bend 163. The third fastening hole 176 is configured to overlap with the fastening groove of the second protrusion 175. A second fastening component such as a screw can be fastened to the fastening groove of the second protrusion 175 after passing through the second fastening hole 174 of the first lower bend 163. Thus, the upper air duct 134 and the lower air duct 135 are fastened by at least one second fastening component.

[0355] Multiple first protruding pillars 173 and second protruding pillars 175 can form triangular vertices on the inner surfaces of the upper wall 1345 of the upper air duct 134 and the first upper wall 1621 of the first upper bend 162.

[0356] Thus, the plurality of first protruding pillars 173 can support the flow path space between the upper wall 1345 of the upper air duct 134 and the lower wall 1355 of the lower air duct 135 of the intake air duct 132. The second protruding pillars 175 can support the flow path space between the first upper wall 1621 of the first upper bend 162 of the intake air duct 132 and the first lower wall 1631 of the first lower bend 163.

[0357] Multiple first protrusions 173 and second protrusions 175 can support the flow path space of the intake air duct 132 to avoid external impact.

[0358] For example, a third heat insulation wall 1153 is provided between the first cover 1141 of the door shell 114 and the upper wall 1345 of the intake air duct 132. The third heat insulation wall 1153 is a heat insulation material, formed by foaming PU foam. In this case, the plurality of first protrusions 173 and second protrusions 175 can prevent the upper wall 1345 of the intake air duct 132 from deforming due to impact during foaming.

[0359] A third heat insulation wall 1153 is provided between the lower wall of the intake air duct 132 and the upper surface of the ice-making shell 117. In this case, the plurality of first protrusions 173 and second protrusions 175 can prevent the lower wall 1355 of the intake air duct 132 from deforming due to impact during foaming.

[0360] The following describes the movement path of the cold air in the intake duct 132. The cold air drawn in through the intake port 131 passes through the cooling fan 150. The cold air passing through the cooling fan 150 can flow into the flow path between the upper air duct 134 and the lower air duct 135.

[0361] Next, the cold air moves from the flow path between the upper air duct 134 and the lower air duct 135 along the flow path between the first upper bend 162 and the first lower bend 163.

[0362] Subsequently, the cold air flows through the path between the upper connecting part 165 and the lower connecting part 166.

[0363] Afterwards, the cold air moves through the flow path between the second upper bend 168 and the second lower bend 169, and is supplied to the upper side of the first storage section 109 through the outlet 170 formed at the ends of the second upper bend 168 and the lower bend 169 and the inlet 156 of the inner shell 108.

[0364] On the other hand, when the user opens the second door 124, they can access the storage sections 109 and 121 of the first door 105. The cooling fan 150 is arranged at a downward angle toward the refrigerator compartment 102. As one approaches the rear side of the cooling fan 150 from its front side, the lower end of the cooling fan 150 is positioned lower than the lower end of the first upper bend 162. The lower end of the cooling fan 150 can be seen by the user through the inlet 156.

[0365] According to this embodiment, the second lower bending portion 169 and the lower connecting portion 166 are disposed in front of the cooling fan 150.

[0366] When a user observes the inlet 156 from the front, the height of the rear end of the second lower bend 169, referenced to the first horizontal line H1, is higher than or the same as the height of the second horizontal line H2, also referenced to the first horizontal line H1. In this embodiment, the rear end of the second lower bend 169 is shown to have the same height as the distance between the first horizontal line H1 and the second horizontal line H2.

[0367] The height of the rear end of the second lower bend 169 can be higher than or the same as the height of the lower end of the front end of the fan mounting portion 136 relative to the first horizontal line H1. In this embodiment, it is shown that the height of the rear end of the second lower bend 169 is the same as the height of the lower end of the front end of the fan mounting portion 136.

[0368] The height of the rear end of the second lower bend 169 can be the same as or higher than the lower end of the front end of the fan receiving portion 137 relative to the first horizontal line H1. In this embodiment, the height of the rear end of the second lower bend 169 is shown to be the same as the lower end of the front end of the fan receiving portion 137.

[0369] The height of the rear end of the second lower bend 169 can be the same as or higher than the lower end of the front end of the cooling fan 150 relative to the first horizontal line H1. In this embodiment, the height of the rear end of the second lower bend 169 is shown to be the same as the lower end of the front end of the cooling fan 150.

[0370] The height of the lower connecting portion 166 can be higher than or the same as the height of the second horizontal line H2 relative to the first horizontal line H1. In this embodiment, the upper end of the lower connecting portion 166 is shown to be the same height as the second horizontal line H2 relative to the first horizontal line H1.

[0371] The height of the upper end of the lower connecting portion 166 can be the same as or higher than the height of the lower end of the front end of the fan mounting portion 136 relative to the first horizontal line H1. In this embodiment, it is shown that the height of the upper end of the lower connecting portion 166 is the same as the height of the front end of the fan mounting portion 136 relative to the first horizontal line H1.

[0372] The height of the upper end of the lower connecting portion 166 can be the same as or higher than the height of the lower end of the front end of the fan receiving portion 137 relative to the first horizontal line H1. In this embodiment, it is shown that the height of the upper end of the lower connecting portion 166 is the same as the height of the front end of the fan receiving portion 137 relative to the first horizontal line H1.

[0373] The height of the upper end of the lower connecting portion 166 can be the same as or higher than the height of the lower end of the front end of the cooling fan 150. In this embodiment, it is shown that the height of the upper end of the lower connecting portion 166 is the same as the height of the lower end of the front end of the cooling fan 150.

[0374] The cooling fan 150 is located behind the bend 160. The lower end of the cooling fan 150, which is located below the second horizontal line H2, is located behind the second lower bend 169, the lower connecting part 166, and the first lower bend 163.

[0375] Therefore, the lower end of the cooling fan 150, which protrudes below the second horizontal line H2 and is concealed inside the fan mounting portion 136 by the second lower bend portion 169, the lower connecting portion 166, and the first lower bend portion 163, can prevent the user from seeing the lower end of the cooling fan 150 with the naked eye. This avoids the cooling fan 150 being exposed to the outside when the second door 124 is opened, thus preventing a reduction in the product's appearance quality.

[0376] The first bend 161 bends forward from the upper air duct 134 and the lower air duct 135, and the second bend 167 bends forward and downward from the first bend 161. As a result, the user's hands cannot approach the cooling fan 150, thereby preventing the danger of accidents such as fingers being caught when the cooling fan 150 is operating.

[0377] It should be noted that when the user's line of sight is at the same or similar height as the inlet 156 formed on the upper side of the first storage section 109 of the first door 105 and facing the front of the inlet 156, the second lower bend 169 and the lower connecting section 166 can be seen with the naked eye through the inlet 156. Furthermore, when the user's line of sight is upward towards the inlet 156, a portion of the first upper bend 162 can be seen with the naked eye through the inlet 156.

[0378] Furthermore, the second bend 167 is formed by tilting downwards towards the upper side of the first receiving portion 109. Thus, the second bend 167 tilts downwards towards the upper side of the first receiving portion 109 on the downstream side of the intake duct 132, directing the flow of cold air downwards, thereby reducing power consumption and resolving condensation issues. If the cold air were directed upwards downstream of the intake duct 132, a specific area of ​​the second door 124 might be overcooled; for example, the uppermost surface of the second door 124 might be overcooled.

[0379] 3. Description of the refrigerator structure according to other embodiments of the present invention

[0380] Figure 18 This is a front view of the air conditioning supply device 230 located on the side of the first door 105, as seen from the front according to another embodiment of the present invention.

[0381] Figure 19 Viewed from the side Figure 18 A side view of the intercooling air supply device 230 located on the side of the first door 105.

[0382] Figure 20 yes Figure 19 A three-dimensional view of the disassembly of the air conditioning supply unit 230.

[0383] Figure 21 It is shown Figure 20 A perspective view of the intercooling air supply unit 230.

[0384] Figure 22 This shows the view from above. Figure 21 A top view of the air conditioning supply unit 230.

[0385] Figure 23 This shows a side view. Figure 21 A side view of the air conditioning supply unit 230.

[0386] Figure 24 It is shown Figure 21 A three-dimensional view showing the disassembly of the air conditioning supply unit 230.

[0387] This embodiment is similar to the one described above. Figures 1 to 17The difference in the embodiment is that the air supply device 230 is installed on the side of the first door 105.

[0388] A touch panel 229 can be provided on the inner back side of the second storage section 121. The touch panel 229 can be configured behind the funnel 120. The touch panel 229 is pressable and mounted on the front surface of the fourth plate 1084.

[0389] The touchpad 229 is configured to be touched by the user to remove ice cubes or similar items. Thus, by pressing the touchpad 229 while holding the container, the user can remove ice cubes into the user's container.

[0390] The air supply device 230 can be configured between the second cover 1142a, 1142b of the outer shell 114 and the second plate 1082a, 1082b of the inner shell 108.

[0391] The second covers 1142a and 1142b can form the outer side of the first door 105; for example, they can form the right side. The intake port 231 can be formed in the lower part of the second cover 1142b in a manner that extends through the left and right directions. The intake port 231 is formed in a quadrilateral shape.

[0392] The second plates 1082a and 1082b can form the inner side of the first door 205, and for example, they can form the inner right side of the storage sections 109 and 121. An inlet can be formed through the lower part of the second plate 1082b in the left-right direction. The inlet can be formed into a quadrilateral shape.

[0393] The air supply device 230 includes a cooling fan 250 and an intake duct 251.

[0394] The intake duct 251 is connected to the intake port 231 and the inlet port 256. The intake duct 251 may be formed in a cuboid shape. The right end of the intake duct 251 is fluidly connected to the fan housing 252. The left end of the intake duct 251 is fluidly connected to the inlet port 256.

[0395] The right end of the intake duct 251 refers to the upstream end of the intake duct 251 relative to the direction of cold air movement. The left end of the intake duct 251 refers to the downstream end of the intake duct 251 relative to the direction of cold air movement.

[0396] Thus, the intake duct 251 can form a flow path for the cold air drawn in by the cooling fan 250.

[0397] The second plates 1082a and 1082b are arranged separately from the second covers 1142a and 1142b in the left-right direction. A portion of the second plates 1082a and 1082b are arranged overlapping the second covers 1142a and 1142b in the left-right direction. The front ends of the second plates 1082a and 1082b may be located in front of the front ends of the second covers 1142a and 1142b. The rear ends of the second plates 1082a and 1082b are located in front of the rear ends of the second covers 1142a and 1142b.

[0398] The front end of the inlet 256 can be located in front of the front end of the suction port 231. The rear end of the inlet 256 is located in front of the rear end of the suction port 231.

[0399] The front wall 2511 and rear wall 2512 of the intake air duct 251 can be formed at an angle. The left end of the intake air duct 251 can be located in front of the right end of the intake air duct 251. The upper wall 2513 and lower wall 2514 of the intake air duct 251 can be formed in a planar shape.

[0400] A fan housing 252 can be attached to one side of the intake air duct 251. The fan housing 252 can be formed in a quadrilateral shape. It should be noted that the shape of the fan housing 252 is not limited to this and can be formed in various shapes depending on the shape of the cooling fan 250.

[0401] The cooling fan 250 can be housed inside the fan housing 252. Multiple support ribs 2521 can be formed at the four corners of one side of the fan housing 252. The support ribs 2521 can restrict the cooling fan 250 from moving left and right in the fan housing 252.

[0402] A first mesh section 253 can be installed at the upstream end of the intake duct 251, taking the direction of cold air movement as a reference. The first mesh section 253 can also be attached to the right end of the intake duct 251. The first mesh section 253 can be disposed inside the intake port 231.

[0403] The first mesh portion 253 can be formed in a quadrilateral shape. The first mesh portion 253 is configured to cover the upstream side of the cooling fan 250. The first mesh portion 253 has a plurality of first openings 2531. Thus, the first mesh portion 253 can allow cold air to pass through while inhibiting the passage of impurities.

[0404] A second mesh section 254 can be installed at the downstream end of the intake duct 251, taking into account the direction of cold air movement. The second mesh section 254 can also be attached to the left end of the intake duct 251. The second mesh section 254 can be positioned inside the inlet 256.

[0405] The second mesh portion 254 can be formed in a quadrilateral shape. The second mesh portion 254 is configured to cover the downstream side of the cooling fan 250. The second mesh portion 254 has a plurality of second openings 2541. Thus, the second mesh portion 254 allows cold air to pass through while inhibiting the passage of impurities.

[0406] A first spray outlet (not shown) may be formed on the upper side of the first storage section 109. The first spray outlet is formed through the upper side of the inner door shell 108. A second spray outlet (not shown) may be formed on the upper side of the outer door shell 114.

[0407] The second jet outlet can be located at a higher position than the first jet outlet.

[0408] An ejection duct (not shown) can be configured between the first and second ejection outlets. One end of the ejection duct is fluidly connected to the first ejection outlet. The other end of the ejection duct is fluidly connected to the second ejection outlet.

[0409] One end of the exhaust duct refers to the upstream end of the exhaust duct, with the direction of cold air movement as the reference. The other end of the exhaust duct refers to the downstream end of the exhaust duct, with the direction of cold air movement as the reference.

[0410] The following describes the path of the cold air movement. The cooling fan 250 can draw in cold air from the refrigerator compartment 102 to the second receiving section 121 of the first door 205. The cold air can pass through the first mesh section 253. The cold air can also pass through the cooling fan 250.

[0411] Cold air can move from the intake port 231 to the inlet port 256 along the intake duct 251. Cold air can pass through the second mesh section 254. Cold air flows into the second storage section 121. Cold air rises from the second storage section 121 to the first storage section 109. Cold air circulates between the first storage section 109 and the second storage section 121, thereby cooling the items housed in the basket 110 in the storage sections 109 and 121.

[0412] The cold air can be circulated after being sprayed into the refrigerator compartment 102 through the first nozzle, the air duct and the second nozzle formed on the upper side of the first storage section 109.

[0413] 4. Description of the concealed structure of the intake duct 132 according to yet another embodiment of the present invention

[0414] Figure 25 This is a conceptual diagram illustrating the concealed structure of the intake duct 132 according to yet another embodiment of the present invention.

[0415] This embodiment is similar to the one described above. Figure 14 The difference in the embodiment is that the height of the rear end of the second lower bend 269, the lower connecting part 266, and the front end of the first lower bend 263 is higher than the height of the second horizontal line H2 which is aligned with the first horizontal line H1.

[0416] The first horizontal line H1 refers to the straight line at the point where it intersects the lower wall 1355 of the lower air duct 135 at the rear end of the first lower bend 263 in the horizontal direction.

[0417] The second horizontal line H2 refers to the straight line at the point where it intersects the lower end of the front end of the fan mounting part 136 in the horizontal direction, passing through the rear end of the first upper bend 262.

[0418] The second lower bend 269, the lower connecting part 266, and the first lower bend 263 can be concealed in the lower end of the cooling fan 150 that protrudes below the second horizontal line H2 inside the fan mounting part 136.

[0419] The other constituent elements are the same as those mentioned above. Figures 1 to 24 The embodiments are the same or similar, so repeated descriptions are omitted.

[0420] 5. Description of the structure of the bend 360 in the intake duct 132 according to another embodiment of the present invention

[0421] Figure 26 This is a conceptual diagram illustrating the structure of the bend 360 of the intake duct 132 according to yet another embodiment of the present invention.

[0422] This embodiment is similar to the one described above. Figure 14 , Figure 25 The difference in the embodiment is that the position of the cooling fan 150 is lowered, and the height of the rear end of the second lower bend 369, the lower connecting part 366, and the front end of the first lower bend 363 is lower than the height of the second horizontal line H2 with the first horizontal line H1 as a reference.

[0423] In this embodiment, the cooling fan 150 can be configured to have a relatively low height relative to the first horizontal line H1. The lower end of the front end of the fan mounting portion 336 can be formed by protruding downward from the front end of the upper wall 1345 of the upper air duct 134. Here, the front end of the fan mounting portion 336 refers to the part that intersects with one end of the first upper bend portion 362, and as an example, the part that intersects with the rear end 1623 of the first upper bend portion 362.

[0424] The lower end of the front end of the fan mounting part 336 can be formed by protruding downward at a height lower than the second horizontal line H2, with the first horizontal line H1 as the reference.

[0425] The bottom surface of the lower air duct 335 can be arranged on the same straight line as the first horizontal line H1.

[0426] The front end of the first lower bending portion 363 can be configured to be higher or at the same height than the lower end of the front end of the fan mounting portion 336 with reference to the first horizontal line H1.

[0427] The lower connecting part 366 can be configured to be higher or at the same height as the lower end of the front end of the fan mounting part 336 with reference to the first horizontal line H1.

[0428] The rear end of the second lower bending portion 369 can be configured to be higher or at the same height than the lower end of the front end of the fan mounting portion 336, which is referenced to the first horizontal line H1.

[0429] In this embodiment, the front end of the first lower bend 363, the lower connecting part 366, and the rear end of the second lower bend 369 are arranged at a height higher than the lower end of the front end of the fan mounting part 336 relative to the first horizontal line H1.

[0430] The front end of the first lower bend 363, the lower connecting part 366, and the rear end of the second lower bend 369 can be located at the same height as the third horizontal line H3, wherein, with the first horizontal line H1 as a reference, the third horizontal line H3 is lower than the second horizontal line H2. The third horizontal line H3 is located at a position higher than the lower end of the front end of the fan mounting part 336, with the first horizontal line H3 as a reference. The third horizontal line H3 refers to a straight line passing through the highest point P of the lower connecting part 166 in the front-rear direction.

[0431] Therefore, when the user's line of sight is along the third horizontal line H3, the first lower bend 363, the lower connecting part 366, and the second lower bend 369 can conceal the lower end of the cooling fan 150 that protrudes from the lower end of the front end of the fan mounting part 336.

[0432] The heights of the front end of the first lower bend 363, the lower connecting part 366, and the rear end of the second lower bend 369 decrease with reference to the first horizontal line H1, so that the tilt angle of the first bend 361 and the second bend 367 can be formed gradually.

[0433] Therefore, the flow resistance can be minimized when the cold air from the cooling fan 150 moves toward the first bend 361, the connecting part, and the second bend 367.

[0434] The other constituent elements are the same as those mentioned above. Figures 1 to 25 The embodiments are the same or similar, so repeated descriptions are omitted.

Claims

1. A refrigerator comprising: The cabinet contains a storage compartment; The refrigerator door has a storage section for opening and closing the aforementioned storage compartment; as well as A cooling air supply device supplies cooling air to the aforementioned storage section, so that the cooling air in the aforementioned storage compartment circulates through the aforementioned storage section. The aforementioned air conditioning supply device includes: A cooling fan, located in the refrigerator door, draws in cold air from the storage compartment; and An intake air duct, connected to the upper part of the cooling fan and the storage unit, transfers the cool air drawn in by the cooling fan to the upper part of the storage unit. An inlet is formed at the top of the aforementioned storage section. An outlet is formed at the lower part of the aforementioned storage section to spray the aforementioned cold air that flows in through the aforementioned inlet into the aforementioned storage chamber. The above-mentioned intake air duct includes: The bend is formed at a predetermined angle relative to the horizontal line extending toward the user's line of sight through the aforementioned inlet, and the bend obstructs the cooling fan relative to the user's line of sight.

2. The refrigerator according to claim 1, wherein, The aforementioned storage room includes a cold storage room. The refrigerator doors mentioned above include: The first door, which has the aforementioned storage section, is rotatably mounted on the aforementioned cabinet to allow opening and closing of the aforementioned refrigerator compartment; and The second door is rotatably mounted to the first door to allow for opening and closing of the storage compartment. The second door is made of a transparent material so that users can see the storage compartment.

3. The refrigerator according to claim 1, wherein, The refrigerator doors mentioned above also include: An ice-making unit is located on the rear wall of the aforementioned storage section, positioned from the user's line of sight; and An insulating wall is disposed between the aforementioned storage section and the aforementioned ice-making unit, and has a predetermined thickness.

4. The refrigerator according to claim 1, wherein, The aforementioned air conditioning supply device is located at the top of the refrigerator door. The above-mentioned intake air duct includes: The first bend is located downstream of the cooling fan, based on the airflow direction of the aforementioned cold air, and is formed to be inclined upward in one direction relative to the horizontal line extending toward the user's line of sight. The second bend is formed to slope downward from the downstream side of the first bend in the aforementioned direction; and A connecting portion is disposed between the first bent portion and the second bent portion, connecting the first bent portion and the second bent portion.

5. The refrigerator according to claim 1, wherein, The aforementioned cooling fan is positioned downwards toward the aforementioned storage chamber on one side of the aforementioned intake air duct.

6. The refrigerator according to claim 2, wherein, The above-mentioned intake air duct includes: The main body of the air duct houses the aforementioned cooling fan, forming a flow path for the aforementioned cold air; and The aforementioned bend is formed by bending from the downstream side of the main body of the air duct, based on the flow direction of the aforementioned cold air. The aforementioned bend is located at the front end of the main air duct body, positioned from the user's line of sight. The aforementioned bent portion includes: The first bend is formed such that it slopes upward horizontally relative to the line of sight toward the user in one direction, passing through the lowest point of the main air duct body; and The second bend is connected to the front end of the first bend and is formed by tilting downward in the aforementioned direction.

7. The refrigerator according to claim 6, wherein, The aforementioned cooling fan is configured to slope downwards towards the aforementioned storage chamber inside the aforementioned air duct body. Based on the aforementioned horizontal line, the height of the upper end of the second bend is the same as or higher than the lowest point of the lower end of the cooling fan.

8. The refrigerator according to claim 6, wherein, The main body of the aforementioned air duct includes: An upper air duct, on which the aforementioned cooling fan is installed, and which houses the upper part of the aforementioned cooling fan; and The lower air duct, which is connected to the lower part of the aforementioned upper air duct, houses the lower part of the aforementioned cooling fan. The aforementioned first bend includes: The first upper bend is located downstream of the upper air duct, based on the airflow direction, and bends upward from the upper air duct; and The first lower bend is located on the downstream side of the lower air duct and bends upward from the lower air duct. The aforementioned second bend includes: The second upper bend is connected to the downstream end of the first upper bend and bends downward from the first upper bend; and The second lower bend is connected to the downstream end of the first lower bend and bends downward from the first lower bend.

9. The refrigerator according to claim 8, wherein, The above-mentioned intake air duct includes: A fan mounting section, which protrudes upward from the aforementioned upper air duct and has a fan housing section inside; and The fan cover is installed to cover the upper part of the aforementioned fan mounting section and has a mesh section.

10. The refrigerator according to claim 9, wherein, The first category mentioned above includes: The outer casing of the door faces the aforementioned storage room; and The suction inlet is formed on the upper surface of the aforementioned door shell. The above-mentioned intake air duct includes: A flange, which extends from the upper end of the aforementioned sash mounting portion and protrudes in a manner that overlaps with the upper surface of the aforementioned door shell; and The guide protrudes from the inner end of the aforementioned flange in such a way that it contacts the inner surface of the aforementioned suction port.

11. The refrigerator according to claim 6, wherein, The first category mentioned above includes: The door shell faces the aforementioned storage room and has an intake port; The inner shell of the door is housed inside the outer shell of the door and has an inlet that is fluidly connected to the suction port. The above-mentioned intake air duct includes: A first connecting portion, which protrudes from the front end of the aforementioned bend, based on the user's line of sight, and connects to the upper surface of the aforementioned inner shell of the door; and The second connecting portion protrudes downward from the front end of the aforementioned bent portion and connects to the back of the aforementioned inner shell of the door. The aforementioned inlet is located between the aforementioned first connecting portion and the aforementioned second connecting portion.

12. The refrigerator according to claim 2, wherein, The first category mentioned above includes: The door frame is configured to face the second door mentioned above; The door shell is disposed from the aforementioned door frame toward the aforementioned storage room; An intake port, which communicates with the aforementioned storage compartment, is formed on the upper side of the aforementioned door shell; The inner shell of the door, which is housed inside the outer shell of the door, forms the aforementioned storage section; and An inlet, which faces the storage chamber, is formed on the upper back side of the inner shell of the door and is in fluid connection with the suction inlet. The aforementioned intake air duct extends from the aforementioned intake port to the aforementioned inlet port. The aforementioned inlet is positioned at a higher position than the aforementioned inlet.

13. The refrigerator according to claim 6, wherein, The above-mentioned intake air duct includes: Multiple first protruding pillars, located inside the aforementioned air duct body, are formed to protrude vertically from one side to the opposite side, supporting the inner surface of the aforementioned air duct body; and The second protruding column, inside the aforementioned bent portion, is formed to protrude from one side to the opposite side along a predetermined angle relative to the aforementioned vertical direction, supporting the inner side of the aforementioned bent portion.

14. The refrigerator according to claim 2, wherein, The aforementioned air conditioning supply device is located on the side of the aforementioned first door.

15. The refrigerator according to claim 14, wherein, The first category mentioned above includes: The outer casing of the door faces the aforementioned storage room; The suction inlet is formed on the lower side of the aforementioned door shell; The inner shell of the door, which is housed within the aforementioned outer shell of the door; and An inlet is formed on the lower side of the inner shell of the door in a manner that communicates with the aforementioned suction inlet. The aforementioned air conditioning supply device includes: The first mesh section is installed at the aforementioned suction port; The second mesh section is installed at the aforementioned inlet; and The fan housing section is attached to one side of the intake air duct that connects the intake port and the flow inlet, and houses the cooling fan.

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