# US 2024/0200856 A1 · Refrigerator > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2024/0200856 A1 - Document ID: US20240200856A1 - Status: Published application - Kind: A1 - Application number: 18/287,921 - Filed: 2022-05-27 - Published: 2024-06-20 - Earliest claimed: 2021-06-04 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Donghoon LEE; Wookyong LEE - Web page: https://patentgrep.com/patent/US20240200856A1 ## CPC - F25D 23/04: with special compartments, e.g. butter conditioners - F25D 23/065: {Details} - F25D 17/045: {Air flow control arrangements} - F25D 23/025: {Secondary closures} - F25D 2201/10: with respect to heat - F25D 2323/024: Door hinges - 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 according to the present disclosure may include a first insulation wall having a first storage space: a second insulation wall configured to be arranged in a first direction together with the first insulation wall and having a second storage space maintained at a different temperature from the first storage space, and configured to open and close the first storage space: and a door configured to be arranged in the first direction together with the second insulation wall and to open and close the second storage space. ## Claims ### Claim 1 A refrigerator comprising: a first insulation wall having a first storage space; a second insulation wall configured to be arranged in a first direction together with the first insulation wall and having a second storage space maintained at a different temperature from the first storage space, and configured to open and close the first storage space; and a door configured to be arranged in the first direction together with the second insulation wall and to open and close the second storage space. ### Claim 2 (depends on 1) The refrigerator of claim 1, wherein the second insulation wall includes an upper wall, a lower wall, and a rear wall connecting the upper wall and the lower wall, and wherein the rear wall opens and closes the first storage space. ### Claim 3 (depends on 2) The refrigerator of claim 2, wherein the second insulation wall is rotated after sliding in a direction parallel to the first direction to open the first storage space. ### Claim 4 (depends on 3) The refrigerator of claim 3, further comprising: an outer wall configured to be disposed outside the first insulation wall and the second insulation wall to guide the sliding movement of the second insulation wall. ### Claim 5 (depends on 4) The refrigerator of claim 4, wherein a part of the outer wall is installed on the upper wall and the lower wall of the first insulation wall, wherein other part of the outer wall extends from the first insulation wall in the first direction, and wherein the other part of the outer wall is provided with a guide slot for movement of the second insulation wall. ### Claim 6 (depends on 5) The refrigerator of claim 5, wherein the second insulation wall includes a hinge for rotation, and wherein the hinge is accommodated in the guide slot. ### Claim 7 (depends on 4) The refrigerator of claim 4, wherein the outer wall further includes a side part positioned on the side of each of the first insulation wall and the second insulation wall, and wherein the side part covers a boundary between the first insulation wall and the second insulation wall in a state in which the second insulation wall closes the first storage space. ### Claim 8 (depends on 4) The refrigerator of claim 4, wherein the second insulation wall includes a first opening opened and closed by the door and a second opening exposed to an outside when the second insulation wall opens the first storage space. ### Claim 9 (depends on 8) The refrigerator of claim 8, wherein the second opening of the second insulation wall is covered by the outer wall in a state in which the second insulation wall closes the first storage space. ### Claim 10 (depends on 1) The refrigerator of claim 1, wherein the second insulation wall includes a first partial wall and a second partial wall divided in a second direction intersecting the first direction, wherein each of the first partial wall and the second partial wall is movable relative to the first insulation wall, wherein the first partial wall opens and closes a part of the first storage space and the second partial wall opens and closes another part of the first storage space. ### Claim 11 (depends on 10) The refrigerator of claim 10, wherein the door includes a first door configured to open and close the first partial wall and a second door configured to open and close the second partial wall. ### Claim 12 (depends on 1) The refrigerator of claim 1, further comprising: a locking mechanism configured to lock or unlock the door and the second insulation wall, wherein, in a state in which the door and the second insulation wall are unlocked, the door opens the second insulation wall, and wherein, in a state in which the door and the second insulation wall are locked, the second insulation wall opens the first storage space. ### Claim 13 (depends on 12) The refrigerator of claim 12, wherein the lock mechanism includes a lever provided on the door; a transmission mechanism connected to the lever to transmit the operation force of the lever; and a fixing mechanism configured to receive the operation force of the lever from the transmission mechanism to fix the door and the second insulation wall. ### Claim 14 (depends on 1) The refrigerator of claim 1, wherein the first insulation wall includes a machine room which is a space independent from the first storage space, an evaporator and a fan accommodated in the machine room, and a supply flow path configured to supply the air heat-exchanged with the evaporator toward the second insulation wall, wherein the second insulation wall includes a cold air flow path communicating with the supply flow path in a state in which the first storage space is closed. ### Claim 15 (depends on 14) The refrigerator of claim 14, wherein, in the supply flow path, a damper operated to open the supply flow path in a state in which the second thermal insulation wall closes the first storage space, and to close the supply flow path in a state in which the second insulation wall opens the first storage space. ### Claim 16 A refrigerator comprising: a first insulation wall having a freezing chamber; a second insulation wall having a refrigerating chamber and one side wall configured to open and close the freezing chamber; and a door configured to open and close the refrigerating chamber. ### Claim 17 (depends on 16) The refrigerator of claim 16, wherein the second insulation wall is located in front of the first insulation wall and a rear wall of the second insulation wall opens and closes the freezing chamber, or wherein the second insulation wall includes a front opening and a side opening, the door opens and closes the front opening, and when the second insulation wall opens the first storage space, the side opening of the second insulation wall is opened. ### Claim 18 (depends on 17) The refrigerator of claim 17, further comprising: an outer wall disposed outside the first insulation wall and the second insulation wall to guide a sliding movement of the second insulation wall. ### Claim 19 A refrigerator comprising: a first insulation wall having a freezing chamber and a front opening configured to access to the freezing chamber; and a second insulation wall movable with respect to the first insulation wall and configured to open and close the front opening, and having a refrigerating chamber; wherein the second insulation wall rotates after sliding to open the front opening. ### Claim 20 (depends on 19) The refrigerator of claim 19, further comprising a door configured to open and close the refrigerating chamber. ### Claim 21 A refrigerator comprising: a first insulation wall having a refrigerating chamber; a second insulation wall configured to open and close the freezing chamber and including a refrigerating chamber and a first opening and a second opening configured to access to the refrigerating chamber; and a door configured to open and close the first opening; wherein, when the second insulation wall opens the first storage space in a state in which the door closes the first opening, the second opening of the second insulation wall is opened.