US Patent No. 10,397,990

MICROWAVE OVEN AND THAWING CONTROL METHOD AND DEVICE FOR THE SAME


Patent No. 10,397,990
Issue Date August 27, 2019
Title Microwave Oven And Thawing Control Method And Device For The Same
Inventorship Xiangwei Tang, Foshan (CN)
Yuze Jia, Foshan (CN)
Yan Li, Foshan (CN)
Chun Luan, Foshan (CN)
Dawen Sun, Foshan (CN)
Zhong Han, Foshan (CN)
Xinan Zeng, Foshan (CN)
Assignee GUANGDONG MIDEA KITCHEN APPLIANCES MANUFACTURING CO., LTD., Foshan (CN) MI...

Claim of US Patent No. 10,397,990

1. A thawing control method for a microwave oven, wherein the microwave oven comprises a microwave generator, the method comprises:detecting temperatures of a plurality of temperature detecting points on food in the microwave oven;
controlling the microwave generator to start, and thawing the food according to the temperatures of the plurality of temperature detecting points on the food;
wherein thawing the food according to the temperatures of the plurality of temperature detecting points on the food comprises:
thawing the food according to the temperatures of the plurality of temperature detecting points on the food, to maintain the temperature of the food between ?3° C.-0° C.;
wherein the temperatures of the plurality of temperature detecting points on the food are detected by an infrared temperature sensor disposed in the microwave oven, the infrared temperature sensor comprises M infrared temperature sensing probes, and the temperatures of the plurality of temperature detecting points on the food are detected by N infrared temperature sensing probes, where N and M are positive integers, and N is less than or equal to M;
wherein thawing the food according to the temperatures of the plurality of temperature detecting points on the food, to maintain the temperature of the food between ?3° C.-0° C. comprises:
thawing the food with a first firepower level, wherein the first firepower level is 30%-60% of a maximum firepower;
when 30% of the temperature detection values of the N infrared temperature sensing probes are larger than ?4° C., thawing the food with a second firepower level, wherein the second firepower level is 20%-40% of the maximum firepower;
when 60% of the temperature detection values of the N infrared temperature sensing probes are larger than ?4° C., thawing the food with a third firepower level, wherein the third firepower level is 30%-60% of the maximum firepower;
when 30% of the temperature detection values of the N infrared temperature sensing probes are between ?3° C.-0° C., thawing the food with a fourth firepower level, wherein the fourth firepower level is 0%-30% of the maximum firepower; and
when 80% of the temperature detection values of the N infrared temperature sensing probes are between ?3° C.-0° C., stopping thawing the food.