# US 2021/0239393 A1 · Refrigerator > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0239393 A1 - Document ID: US20210239393A1 - Status: Published application - Kind: A1 - Application number: 17/238,988 - Filed: 2021-04-23 - Published: 2021-08-05 - Earliest claimed: 2015-07-08 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Hyun Joo KIM; Yong Man SEO; In-Sung HWANG; Bok Hyun JANG; Tae Youl LEE; Jeong Won CHOI - Web page: https://patentgrep.com/patent/US20210239393A1 ## CPC - F25D 29/005: {Mounting of control devices} - F25D 23/02: Doors; Covers (F25D23/08 takes precedence {locks or fastenings E05B65/0042}) - F25D 23/025: {Secondary closures} - F25D 2323/023: Door in door constructions - F25D 2400/06: Refrigerators with a vertical mullion - F25D 2400/361: Interactive visual displays - 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 may include a storage compartment, an inner door which comprises an opening having a size corresponding to a size of the storage compartment, a plurality of door guards, and an outer door which open and close the storage compartment, wherein the inner door comprises a control unit may control an internal environment of the storage compartment. ## Claims ### Claim 1 A refrigerator comprising: a body; a storage compartment formed in the body; a first door pivotably coupled with the body and comprising an opening that allows access to the storage compartment from outside of the refrigerator by a user of the refrigerator when the first door is closed; a door basket mounted to the first door, and on which food is storable; a control unit coupled to the first door, and including a display portion to display information of the storage compartment and a user interface portion to receive an input from the user, the control unit configured to control an internal environment of the storage compartment in accordance with the received input; and a second door pivotable with respect to the first door and including a transparent or translucent portion that, while the first door and the second door are closed, allows the door basket to be visible to the user through the transparent or translucent portion and the opening, and allows the display portion and the user interface portion to be visible to the user through the transparent or translucent portion, wherein the second door covers the user interface portion to thereby prevent the user from operating the user interface portion when the second door is closed, the second door uncovers the user interface portion to thereby allow the user to operate the user interface portion when the second door is opened, and in response to the first door being opened, the first door, the second door, and the control unit are opened together. ### Claim 2 (depends on 1) The refrigerator of claim 1, wherein the control unit comprises: a circuit board comprising an operational portion, and a cover covering the circuit board, the cover comprising a button portion on the operational portion, wherein the user interface portion comprises the display portion and the button portion. ### Claim 3 (depends on 2) The refrigerator of claim 2, further comprising: a mounting portion provided on the first door, wherein the control unit is mounted on the mounting portion, the control unit comprises a housing which accommodates the circuit board and the cover, and the housing is coupled with the mounting portion. ### Claim 4 (depends on 1) The refrigerator of claim 1, wherein the door basket is provided to store food, and the transparent or translucent portion is provided to allow the food stored in the door basket to be visible to the user. ### Claim 5 (depends on 1) The refrigerator of claim 1, wherein the control unit is configured to control at least one of a temperature, humidity, smell, and lighting of the storage compartment in accordance with the received input. ### Claim 6 (depends on 1) The refrigerator of claim 1, wherein the first door comprises an upper frame, a lower frame, a left frame, and a right frame which form the opening, and the control unit is disposed on at least one of the upper frame, the lower frame, the left frame, and the right frame. ### Claim 7 (depends on 1) The refrigerator of claim 1, wherein the first door comprises an inner panel, an outer panel forming an interposing space with the inner panel, and an insulator foamed in the interposing space, and the control unit is disposed between the inner panel and the outer panel.