US 12,292,222 B2
Refrigerator and control method therefor
Zhanpeng Cui, Shandong (CN); Jiaming Li, Shandong (CN); Peng Lyu, Shandong (CN); and Lisheng Ji, Shandong (CN)
Assigned to CHONGQING HAIER REFRIGERATION ELECTRIC APPLIANCE CO., LTD., Chongqing (CN); QINGDAO HAIER REFRIGERATOR CO., LTD., Shandong (CN); and HAIER SMART HOME CO., LTD., Shandong (CN)
Appl. No. 18/025,274
Filed by CHONGQING HAIER REFRIGERATION ELECTRIC APPLIANCE CO., LTD., Chongqing (CN); QINGDAO HAIER REFRIGERATOR CO., LTD., Shandong (CN); and HAIER SMART HOME CO., LTD., Shandong (CN)
PCT Filed Aug. 31, 2021, PCT No. PCT/CN2021/115636
§ 371(c)(1), (2) Date Mar. 8, 2023,
PCT Pub. No. WO2022/057614, PCT Pub. Date Mar. 24, 2022.
Claims priority of application No. 202010969233.8 (CN), filed on Sep. 15, 2020.
Prior Publication US 2023/0324100 A1, Oct. 12, 2023
Int. Cl. F25D 17/06 (2006.01)
CPC F25D 17/062 (2013.01) 10 Claims
OG exemplary drawing
 
9. A refrigerator, comprising:
a refrigerator body, having a front side opened to define a first chamber;
a door body, comprising a main door and a secondary door, wherein the main door is configured to open or close the first chamber and defines a second chamber, the secondary door is configured to open or close the second chamber, and a rear side of the main door is provided with an air supply port configured to introduce cold air in the first chamber into the second chamber; and
a controller, comprising a processor and a memory, wherein the memory stores a computer program, and the processor is configured to:
when the computer program is executed by the processor, acquire an absolute air humidity ρ1 of the first chamber and an air temperature T2 of the second chamber;
calculate an expected relative humidity φ3 of air in the first chamber when the temperature changes to T2 based on the absolute air humidity pi and the air temperature T2;
determine a relative air humidity threshold φ0 at which air in the second chamber begins to condense on an inner wall of the second chamber;
compare the expected relative humidity φ3 with the relative air humidity threshold φ0; and
if φ3<φ0, enable the air supply port to supply air to the second chamber, otherwise enable the air supply port to stop supplying air to the second chamber.