# US 2024/0200848 A1 · Refrigerator > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2024/0200848 A1 - Document ID: US20240200848A1 - Status: Published application - Kind: A1 - Application number: 18/542,046 - Filed: 2023-12-15 - Published: 2024-06-20 - Earliest claimed: 2022-12-16 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Daekil KANG - Web page: https://patentgrep.com/patent/US20240200848A1 ## CPC - F25C 5/22: {particularly adapted for household refrigerators} - F25D 17/045: {Air flow control arrangements} - F25D 17/065: {with compartments at different temperatures} - F25D 23/025: {Secondary closures} - F25D 23/028: {Details} - F25D 23/04: with special compartments, e.g. butter conditioners - F25D 2201/10: with respect to heat - F25C: PRODUCING, WORKING OR HANDLING ICE - F25D: REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR (refrigerated showcases A47F3/04; thermally-insulated vessels for domestic use A47J41/00; refrigerated vehicles, see the appropriate subclasses of classes B60 - B64; containers with thermal insulation in general B65D81/38; heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants, or materials for the production of heat or cold by chemical reactions other than by combustion C09K5/00; thermally-insulated vessels for liquefied or solidified gases F17C; air-conditioning or air-humidification F24F; refrigeration machines, plants, or systems F25B; cooling of instruments or comparable apparatus without refrigeration G12B) ## Abstract A refrigerator includes a cabinet having a refrigerating compartment and a freezing compartment, and a door configured to open and close the refrigerating compartment. The door includes a first door rotatably mounted on the cabinet, and a second door provided in front of the first door and configured to rotate in a direction of the first door to open and close at least a front portion of the first door. The first door includes an ice-making chamber that is provided in a rear surface of the first door and accommodates an ice maker, a door storage portion provided in a front surface of the first door and opened and closed by the second door, and a supply duct configured to allow the ice-making chamber to communicate with the door storage portion and supply cold air of the ice-making chamber to the door storage portion. ## Claims ### Claim 1 A refrigerator comprising: a cabinet that has a refrigerating compartment and a freezing compartment, each of the refrigerating compartment and the freezing compartment having a front opening; and a refrigerating compartment door configured to open and close at least a portion of the refrigerating compartment, wherein the refrigerating compartment door comprises: a first door rotatably disposed at the cabinet, and a second door disposed at a front side of the first door and configured to rotate relative to the first door to thereby open and close at least a portion of the front side of the first door, and wherein the first door comprises: an ice-making chamber defined at a rear side of the first door, an ice maker accommodated in the ice-making chamber, a door storage portion defined at the front side of the first door and configured to be opened and closed by the second door, the door storage portion comprising a food storage space, and a supply duct configured to fluidly connect the ice-making chamber to the door storage portion and to supply cold air from the ice-making chamber to the door storage portion. ### Claim 2 (depends on 1) The refrigerator according to claim 1, wherein the first door further comprises a damper configured to open and close the supply duct and to selectively supply the cold air from the ice-making chamber to the door storage portion. ### Claim 3 (depends on 1) The refrigerator according to claim 1, wherein the first door further comprises a discharge duct disposed below the supply duct and configured to fluidly connect the door storage portion to the ice-making chamber, the discharge duct being configured to discharge air from the door storage portion to the ice-making chamber. ### Claim 4 (depends on 3) The refrigerator according to claim 3, wherein the ice-making chamber comprises: an inlet configured to introduce the cold air into the ice-making chamber; and an outlet configured to discharge air from the ice-making chamber toward the cabinet, and wherein the discharge duct is opened at a position adjacent to the outlet and configured to direct the air discharged through the discharge duct toward the cabinet through the outlet. ### Claim 5 (depends on 1) The refrigerator according to claim 1, wherein the cabinet comprises: an evaporator configured to generate cold air; a blowing fan configured to blow the cold air generated by the evaporator; and a cabinet duct configured to guide a flow of the cold air between the evaporator and the first door, wherein the first door further comprises an ice-making chamber duct configured to, based on the first door being closed, fluidly connect to the cabinet duct and supply the cold air to the ice-making chamber, and wherein the supply duct is connected to the ice-making chamber duct. ### Claim 6 (depends on 5) The refrigerator according to claim 5, wherein the ice-making chamber duct comprises: an ice-making chamber supply duct connected to the cabinet duct and configured to supply the cold air from the cabinet duct toward the ice-making chamber; and an ice-making chamber return duct connected to the cabinet duct and configured to discharge air from the ice-making chamber toward the cabinet duct. ### Claim 7 (depends on 6) The refrigerator according to claim 6, wherein the first door further comprises a discharge duct configured to discharge air from the door storage portion, wherein the supply duct is configured to fluidly connect to the ice-making chamber supply duct, and wherein the discharge duct is configured to fluidly connect to the ice-making chamber return duct. ### Claim 8 (depends on 6) The refrigerator according to claim 6, wherein the first door further comprises a discharge duct configured to discharge air from the door storage portion, and wherein the discharge duct is opened toward an outlet-side of the ice-making chamber return duct. ### Claim 9 (depends on 6) The refrigerator according to claim 6, wherein the first door further comprises: a dispenser disposed at the front side of the first door and configured to fluidly connect to the ice-making chamber, the dispenser being configured to dispense ice from the ice-making chamber; and a discharge duct configured to discharge air from the door storage portion, and wherein the discharge duct is connected to the ice-making chamber return duct through the dispenser. ### Claim 10 (depends on 1) The refrigerator according to claim 1, further comprising a dispenser disposed at a front surface of the first door and configured to fluidly connect to the ice-making chamber, the dispenser being configured to dispense ice, and wherein the dispenser is disposed below the door storage portion. ### Claim 11 (depends on 10) The refrigerator according to claim 10, wherein the second door is configured to close the door storage portion and the dispenser simultaneously. ### Claim 12 (depends on 10) The refrigerator according to claim 10, wherein the second door comprises a panel assembly that overlaps with at least an area of each of the door storage portion and the dispenser, the panel assembly being configured to allow a rear side of the second door to be visible therethrough. ### Claim 13 (depends on 12) The refrigerator according to claim 12, further comprising a display disposed between the door storage portion and the dispenser, and wherein the display is configured to be visible through the panel assembly. ### Claim 14 (depends on 12) The refrigerator according to claim 12, further comprising a door light disposed at the first door or the second door, the door light being configured to be turned on and off by a manipulation of a user and to selectively illuminate an inside of the door storage portion. ### Claim 15 (depends on 10) The refrigerator according to claim 10, wherein the first door further comprises a protrusion that is disposed at a lower portion of the first door and protrudes forward relative to the door storage portion, and wherein the dispenser is disposed at the protrusion. ### Claim 16 (depends on 15) The refrigerator according to claim 15, wherein the first door further comprises a discharge duct disposed above the protrusion and configured to fluidly connect the door storage portion to the ice-making chamber and to discharge the cold air from the door storage portion to the ice-making chamber. ### Claim 17 (depends on 1) The refrigerator according to claim 1, wherein the door storage portion is disposed forward relative to the ice-making chamber and overlaps with at least a portion of the ice-making chamber along a front-rear direction. ### Claim 18 (depends on 1) The refrigerator according to claim 1, wherein a rear surface of the second door is recessed and defines at least a portion of the door storage portion. ### Claim 19 (depends on 1) The refrigerator according to claim 1, further comprising: an ice-making chamber door configured to cover an opened rear surface of the ice-making chamber; and an insulation material that surrounds the ice-making chamber. ### Claim 20 (depends on 1) The refrigerator according to claim 1, wherein the door storage portion includes a closed space configured to be defined between the first door and the second door based on the second door being closed. ### Claim 21 (depends on 1) The refrigerator according to claim 1, wherein the second door comprises: a door panel that defines a front surface of the refrigerating compartment door; and an insulation material that is provided inside the door panel and extends from an upper end of the door panel and a lower end of the door panel.