US 12,345,467 B2
Partial-freezing meat fresh-preservation control method, controller, and refrigerator
Qinqin Gong, Anhui (CN); Huixin Shi, Anhui (CN); Zhigang Wu, Anhui (CN); and Zhifang Ning, Anhui (CN)
Assigned to HEFEI HUALING CO., LTD., Hefei (CN); HEFEI MIDEA REFRIGERATOR CO., LTD., Hefei (CN); and MIDEA GROUP CO., LTD, Foshan (CN)
Appl. No. 16/612,252
Filed by HEFEI HUALING CO., LTD., Anhui (CN); HEFEI MIDEA REFRIGERATOR CO., LTD., Anhui (CN); and MIDEA GROUP CO., LTD., Guangdong (CN)
PCT Filed Jun. 30, 2017, PCT No. PCT/CN2017/091137
§ 371(c)(1), (2) Date Nov. 8, 2019,
PCT Pub. No. WO2018/205386, PCT Pub. Date Nov. 15, 2018.
Claims priority of application No. 201710322733.0 (CN), filed on May 9, 2017.
Prior Publication US 2021/0156610 A1, May 27, 2021
Int. Cl. F25D 29/00 (2006.01); A23B 2/00 (2025.01); A23B 2/80 (2025.01); A23B 2/82 (2025.01); A23B 4/06 (2006.01); A23B 4/07 (2006.01); G05B 15/02 (2006.01)
CPC F25D 29/00 (2013.01) [A23B 2/001 (2025.01); A23B 2/805 (2025.01); A23B 2/82 (2025.01); A23B 4/066 (2013.01); A23B 4/07 (2013.01); G05B 15/02 (2013.01); F25D 2600/02 (2013.01); F25D 2600/06 (2013.01); F25D 2700/16 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A refrigerator comprising a compartment configured to store a piece of meat; and
a controller configured to:
acquire a first temperature of a piece of meat in the compartment;
determine whether the first temperature of the piece of meat is greater than or equal to a first temperature threshold, the first temperature threshold being a temperature value that keeps the piece of meat in a partially-frozen and easy-to-cut state;
control a cooling operation on the compartment in response to that the controller determines that the first temperature of the piece of meat is greater than or equal to the first temperature threshold;
determine whether the piece of meat is frozen during the cooling operation;
start a timing operation in response to that the controller determines that the piece of meat is frozen during the cooling operation; and
control a heating operation on the compartment after the timing operation has lapsed a first preset time period, wherein the first preset time period has a duration of at least one hour and is chosen to maintain the piece of meat in the partially-frozen and easy-to-cut state, and to reduce a cooling-warming switching frequency.