KR-20260066618-A - REFRIGERATOR

KR20260066618AKR 20260066618 AKR20260066618 AKR 20260066618AKR-20260066618-A

Abstract

A refrigerator is disclosed. The refrigerator includes a cabinet having a storage compartment and a refrigerator door for opening and closing the storage compartment. The refrigerator door includes a first door rotatably mounted to open and close the storage compartment and a second door rotatably mounted on the first door to open and close the storage compartment of the first door. The refrigerator includes a cold air supply device for supplying cold air to the storage compartment. The cold air supply device includes a cooling fan and an intake duct. The cooling fan is mounted at the upstream end of the intake duct with respect to the direction of flow of the cold air. Through this, cold air can be supplied to the upper side of the storage compartment.

Inventors

백우경
이희준
신재훈
서창호
장진호

Assignees

엘지전자 주식회사

Dates

Publication Date: 20260512
Application Date: 20250910
Priority Date: 20241104

Claims (20)

Cabinet equipped with a storage room; A refrigerator door having a storage compartment and opening and closing the storage compartment; and It includes a cold air supply device that supplies cold air to the storage unit so that the cold air of the storage room circulates through the storage unit, and The above cold air supply device is, A cooling fan provided in the refrigerator door and drawing in cold air from the storage room; and A refrigerator comprising a cooling fan and an intake duct connected to the upper part of the storage compartment and transmitting the cold air sucked in by the cooling fan to the upper part of the storage compartment.
In paragraph 1, The above cold air supply device is, A refrigerator provided on the upper part of the refrigerator door.
In paragraph 1, The above storage room includes a refrigerator room, and The above refrigerator door is, A first door having the above storage compartment and rotatably mounted on the cabinet to open and close the refrigerator compartment; A refrigerator comprising a second door rotatably mounted on the first door to open and close the storage compartment.
In paragraph 3, The above second door is formed of a transparent material so that the user can look into the storage compartment.
In paragraph 1, The above refrigerator door is, An ice-making unit provided on the rear wall of the above storage unit; and A refrigerator further comprising an insulating wall having a predetermined thickness, disposed between the storage unit and the ice-making unit.
In paragraph 1, The above suction duct is, A first bend portion positioned downstream of the cooling fan based on the direction of flow of the above cold air and formed to be inclined upward in one direction with respect to the horizontal line; and A refrigerator comprising a second bend portion formed to slope downward in the same direction on the downstream side of the first bend portion.
In paragraph 6, The above suction duct is, A refrigerator further comprising a connecting portion disposed between the first bend portion and the second bend portion, connecting the first bend portion and the second bend portion.
In paragraph 2, An inlet is formed at the top of the above storage portion, and A discharge port is formed at the bottom of the storage unit to discharge the cold air introduced through the inlet port into the storage room, and The above cooling fan is positioned on one side of the intake duct at a downward incline toward the storage room, and The above suction duct is, A refrigerator comprising a bent portion formed at a predetermined angle with respect to a horizontal line through the above-mentioned inlet, wherein the bent portion covers the cooling fan.
In paragraph 3, The above suction duct is, A duct body that accommodates the cooling fan and forms a flow path for the cold air; and A refrigerator comprising a bent portion formed to be bent on the downstream side of the duct body based on the direction of flow of the cold air.
In Paragraph 9, The above-mentioned bend is positioned at the front end of the duct body, and The above-mentioned bent portion is, A first bend portion formed to be inclined upward with respect to a horizontal line passing in one direction at the bottom of the duct body; and A refrigerator comprising a second bend portion connected to the front end of the first bend portion and formed to be inclined downward in one direction.
In Paragraph 10, The cooling fan is positioned inside the duct body at a downward inclination toward the storage room, and A refrigerator in which the height of the upper part of the second bend is equal to or greater than the maximum height of the lower part of the cooling fan, based on the above horizontal line.
In Paragraph 10, The above duct body is, An upper duct on which the above cooling fan is mounted and which accommodates the upper part of the cooling fan; and A refrigerator comprising a lower duct coupled to the lower part of the upper duct and accommodating the lower part of the cooling fan.
In Paragraph 12, The above-mentioned first bend portion is, A first upper bend portion disposed on the downstream side of the upper duct based on the flow direction of the cold air and bent upward from the upper duct; and It includes a first lower bend portion disposed on the downstream side of the lower duct and bent upward from the lower duct, The above second bend portion is, A second upper bend portion connected to the downstream end of the first upper bend portion and bent downward from the first upper bend portion; and A refrigerator comprising a second lower bend portion connected to the downstream end of the first lower bend portion and bent downward from the first lower bend portion.
In Paragraph 12, The above suction duct is, A fan mounting portion formed to protrude upward from the upper duct and having a fan receiving portion inside; and A refrigerator comprising a fan cover mounted to cover the upper part of the fan mounting portion and having a grill portion.
In Paragraph 14, The above-mentioned first door is, A door outer case positioned toward the storage room; and It includes a suction port formed on the upper surface of the above door outer case, and The above suction duct is, A flange formed to protrude from the upper portion of the fan mounting portion so as to overlap with the upper surface of the door outer case; and A refrigerator comprising a coupling guide that protrudes from the inner end of the flange to make surface contact with the inner surface of the suction port.
In Paragraph 9, The above-mentioned first door is, A door outer case positioned toward the storage room and equipped with an intake port; It includes a door inner case that is housed inside the door outer case and has an inlet connected to communicate with the suction port, The above suction duct is, A first connecting part protruding from the front end of the above-mentioned bending part and connected to the upper surface of the door inner case; and It includes a second connecting part that protrudes downward from the front end of the above-mentioned bending part and is connected to the rear surface of the door inner case, The above inlet is a refrigerator disposed between the first connecting part and the second connecting part.
In paragraph 3, The above-mentioned first door is, A door frame positioned toward the second door; A door outer case positioned toward the storage room from the above door frame; A suction port connected to the storage room and formed on the upper side of the door outer case; A door inner case that is accommodated inside the door outer case and forms the storage portion; and It includes an inlet formed on the upper rear side of the door inner case toward the storage chamber and connected to communicate with the suction port, The above suction duct extends from the suction port to the inlet, and A refrigerator in which the above intake port is positioned higher than the above inlet port.
In Paragraph 9, The above suction duct is, A plurality of first boss portions formed to protrude from one side to the opposite side in the vertical direction within the interior of the duct body, supporting the inner surface of the duct body; and A refrigerator comprising a second boss portion that supports the inner surface of the bent portion, formed to protrude from one side to the opposite side in a direction inclined at a predetermined angle with respect to the vertical direction within the bent portion.
In paragraph 3, The above cold air supply device is a refrigerator provided on the side of the first door.
In Paragraph 19, The above-mentioned first door is, A door outer case positioned toward the above storage room; A suction port formed on the lower side of the above door outer case; A door inner case accommodated inside the above door outer case; and It includes an inlet formed on the lower side of the door inner case to communicate with the above suction port, and The above cold air supply device is, A first grille part mounted on the above intake port; A second grille mounted on the above-mentioned inlet; and A refrigerator comprising a fan housing that accommodates the cooling fan and is coupled to one side of the suction duct connecting the suction port and the inlet port.

Description

Refrigerator The present invention relates to a refrigerator. Generally, a refrigerator is a device that stores objects by refrigerating or freezing them. A refrigerator is disclosed in prior art patent publication No. 10-2022-0084003 (hereinafter referred to as the 'Patent Document'; published on June 21, 2022) related to refrigerated storage of a refrigerator. According to the above patent document, a refrigerator may include a cabinet forming a storage compartment; a heat exchanger formed inside the cabinet; an evaporator provided to the heat exchanger; a door that opens and closes at least a portion of the storage compartment; a housing provided to the door and forming a storage space; and a duct that guides cold air generated from the evaporator into the interior of the housing and defines a cold air flow path extending from the heat exchanger and connected to the door at a position where the door is closed. The above duct includes a first duct extending forward along at least one wall of the inner case so as to be away from the heat exchange chamber, and the housing may include a cold air inlet and a cold air outlet. The above refrigerator can cool the storage space of the housing by transferring cold air generated from the evaporator to the door housing through a duct. However, the cold air generated in the above evaporator is supplied not only to the storage room of the cabinet but also to the housing through the duct, which causes a problem of fluctuation in cycle operation. In addition, the above duct is connected to the heat exchanger located at the lower rear of the cabinet and the lower side of the door, which presents a problem in that it is difficult for cold air to be supplied from the bottom of the door to the top or to circulate within the storage space. In addition, the first duct is installed embedded so as to extend to the side of the door along at least one wall of the inner case of the cabinet, which causes a problem of reduced thermal insulation performance of the refrigerator. FIG. 1 is a conceptual diagram showing a refrigerator door mounted on a cabinet of a refrigerator according to one embodiment of the present invention. Figure 2 is a conceptual diagram showing the second door of the refrigerator door in Figure 1 opened relative to the first door. FIG. 3 is a front view showing the first door as seen from the front with the second door open in FIG. 2. Fig. 4 is a rear perspective view showing the first door of Fig. 3 as seen from the rear. FIG. 5 is a cross-sectional view taken along VV in FIG. 3, and is a conceptual diagram showing a cold air supply device embedded in the upper part of the first door. Figure 6 is an enlarged view of part VI in Figure 5, and is a conceptual diagram showing the cold air movement path through the cold air supply device. Fig. 7 is a disassembled perspective view of the first door in Fig. 2, viewed from the front. FIG. 8 is an exploded perspective view of FIG. 5 with the first door disassembled, viewed from the rear. FIG. 9 is a conceptual diagram showing the front end of the cold air supply device in FIG. 2 connected to the fourth panel of the door inner case of the first door. Figure 10 is a conceptual diagram explaining whether a cooling fan is visible to the user with the naked eye depending on the installation location of the cooling fan and the user's line of sight. FIG. 11 is a perspective view showing the cold air supply device in FIG. 9. Fig. 12 is a side view showing the cold air supply device of Fig. 11 viewed from the side. Fig. 13 is a top view of the cold air supply device of Fig. 11. FIG. 14 is a cross-sectional view taken along XIV-XIV in FIG. 13, and is a conceptual diagram showing how the bent portion of the intake duct blocks the cooling fan from the user's line of sight. Fig. 15 is a front view showing the intake duct in Fig. 14 as viewed from the front. FIG. 16a is an exploded perspective view of the disassembled cold air supply device in FIG. 11, viewed from the front. FIG. 16b is an exploded perspective view of the disassembled cold air supply device in FIG. 11, viewed from the rear. Figure 17 is a conceptual diagram of the cooling fan mounted in the upper duct in Figure 16a, viewed from the bottom. FIG. 18 is a front view looking from the front of a cold air supply device according to another embodiment of the present invention installed on the side of the first door. FIG. 19 is a side view looking at the cold air supply device installed on the side of the first door in FIG. 18. FIG. 20 is an exploded view of the cold air supply device in FIG. 19. FIG. 21 is a perspective view showing the cold air supply device in FIG. 20. FIG. 22 is a top view of the cold air supply device of FIG. 21. FIG. 23 is a side view showing the cold air supply device of FIG. 21 as viewed from the side. FIG. 24 is an exploded perspective view showing the cold air supply device in FIG. 21 disassembled. FIG. 25 is a conceptual diagram illustrating a co