Microwave oven and thawing control method and device for the same

Patent metadata

Field	Value
Publication number	US-10588181-B2
Application number	US-201715468937-A
Country	US
Kind code	B2
Filing date	Mar 24, 2017
Priority date	Sep 25, 2014
Publication date	Mar 10, 2020
Grant date	Mar 10, 2020

Abstract

The present disclosure provides a microwave oven, and a thawing control method and device for the same. The method includes: acquiring a total period T of thawing according to a weight x of food in the microwave oven, wherein the total period T of thawing satisfies: T=K(x/100) seconds, where, 20 seconds/g≤K≤120 seconds/g; and controlling the microwave generator to start, and thawing the food according to the total period T of thawing. With the method, the thawed food is more nutritious, healthier, and easier to cut, and has the low temperature difference, without a cooked discoloration phenomenon.

First claim

What is claimed is:

1. A thawing control method for a microwave oven, wherein the microwave oven includes a microwave generator and a thawing control device, the thawing control device comprising a processor and a memory for storing instructions executable by the processor, and the method being executable by the processor comprises:
acquiring a total period T of thawing according to a weight x of food in the microwave oven, wherein the total period T of thawing satisfies: T=K(x/100) seconds, where, 20 seconds/g≤K≤120 seconds/g; and
controlling the microwave generator to start, and thawing the food according to the total period T of thawing, the thawing the food according to the total period T of thawing includes:
thawing food with a plurality of firepower levels successively over the total period T of thawing, each firepower level of the plurality of firepower levels being between 0%˜60% of a maximum firepower.

2. The thawing control method according to claim 1 , wherein the thawing the food with the plurality of firepower levels successively over the total period T of thawing includes a plurality of successive periods of time, each successive period of time corresponding to one of the plurality of firepower levels, wherein a sum of the plurality of successive periods of time is equal to the total period T of thawing.

3. The thawing control method according to claim 2 , wherein the thawing the food with the plurality of firepower levels successively over the total period T of thawing includes:
thawing the food with a first firepower level in a first period t1 of time, wherein the first firepower level is 30%˜60% of the maximum firepower;
thawing the food with a second firepower level in a second period t2 of time, wherein the second firepower level is 20%˜40% of the maximum firepower;
thawing the food with a third firepower level in a third period t3 of time, wherein the third firepower level is 30%˜60% of the maximum firepower; and
thawing the food with a fourth firepower level in a fourth period t4 of time, wherein the fourth firepower level is 0%˜30% of the maximum firepower.

4. The thawing control method according to claim 3 , wherein the first period t1 of time, the second period t2 of time, the third period t3 of time and the fourth period t4 of time satisfy following conditions respectively:
t 1= K ( n+ 1+ a )/4,
t 2= K ( n− 1− a )/4,

t 3= K ( n+ 1− a )/4, and

t 4= K ( n− 1+ a )/4,
where, n=x/100 g, and a=[1+(−1) n ]/2.

5. The thawing control method according to claim 3 , further comprising:
suspending the thawing after the second period t2 of time, prompting to turn over the food, and starting to detect whether the food is turned over or starting to detect whether the microwave generator is restarted; and
if it is detected that the food is turned over or it is detected that the microwave generator is restarted, controlling to execute an act of thawing the food with a third firepower level in a third period t3 of time.

6. The thawing control method according to claim 1 , wherein the microwave oven comprises one key for thawing, and the one key for thawing is configured to successively increase a weight displayed on the microwave oven by 50 g˜100 g when the one key for thawing is pressed once.

7. The thawing control method according to claim 1 , wherein the microwave oven comprises a plurality of keys for thawing corresponding to a plurality of weight grams respectively.

8. The thawing control method according to claim 1 , wherein the weight x of the food is judged by a weight sensor disposed in the microwave oven.

9. The thawing control method according to claim 1 , wherein the food is thawed to maintain the temperature of the food in the microwave oven in −3° C.˜0° C.

10. The thawing control method according to claim 1 , wherein the food is thawed to maintain the temperature of the food in the microwave oven at −1° C.

11. The thawing control method according to claim 1 , wherein the food is thawed to make the temperature of the food in the microwave oven lower than −3° C.˜0° C. in thawing, and to maintain the temperature of the food in the microwave oven in −3° C.˜0° C. after thawing.

12. The thawing control method according to claim 1 , wherein the food is thawed to make the temperature of the food in the microwave oven lower than −1° C. in thawing, and to maintain the temperature of the food in the microwave oven at −1° C. after thawing.

13. A thawing control device for a microwave oven, comprising:
a processor; and
a memory for storing instructions executable by the processor,
wherein the processor is configured to:
acquire a total period T of thawing according to a weight x of food in the microwave oven, wherein the total period T of thawing satisfies: T=K(x/100) seconds, where, 20 seconds/g≤K≤120 seconds/g; and
control the microwave generator to start, and thaw the food according to the total period T of thawing, the thaw the food according to the total period T of thawing includes:
thawing food with a plurality of firepower levels successively over the total period of T of thawing, each firepower level of the plurality of firepower levels being between 0%˜60% of a maximum firepower.

14. The thawing control device according to claim 13 , wherein the thawing the food with the plurality of firepower levels successively over the total period T of thawing includes a plurality of successive periods of time, each successive period of time corresponding to one of the plurality of firepower levels, wherein a sum of the plurality of successive periods of time is equal to the total period T of thawing.

15. The thawing control device according to claim 14 , wherein the thawing food with the plurality of firepower levels successively over the total period T of thawing includes:
thawing the food with a first firepower level in a first period t1 of time, wherein the first firepower level is 30%˜60% of the maximum firepower;
thawing the food with a second firepower level in a second period t2 of time, wherein the second firepower level is 20%˜40% of the maximum firepower;
thawing the food with a third firepower level in a third period t3 of time, wherein the third firepower level is 30%˜60% of the maximum firepower; and
thawing the food with a fourth firepower level in a fourth period t4 of time, wherein the fourth firepower level is 0%˜30% of the maximum firepower.

16. The thawing control device according to claim 15 , wherein the first period t1 of time, the second period t2 of time, the third period t3 of time and the fourth period t4 of time satisfy following conditions respectively:
t 1= K ( n+ 1+ a )/4,
t 2= K ( n− 1− a )/4,

t 3= K ( n+ 1− a )/4, and

t 4= K ( n− 1+ a )/4,
where, n=x/100 g, and a=[1+(−1) n ]/2.

17. The thawing control device according to claim 15 , wherein the processor is further configured to:
suspend the thawing after the second period t2 of time, prompt to turn over the food, and start to detect whether the food is turned over or start to detect whether the microwave generator is restarted; and
if it is detected that the food is turned over or it is detected that the microwave generator is restarted, control to execute an act of thawing the food with a third firepower level in a third period t3 of time.

18. The thawing control device according to claim 13 , wherein the microwave oven comprises one key for thawing, and the one key for thawing is configured to successively increase a weight displayed on the microwave oven by 50 g˜100 g when the one key for

Assignees

• Guangdong Midea Kitchen Appliances Mfg Co Ltd
• Midea Group Co Ltd

Inventors

• Tang Xiangwei
• Jia Yuze
• Li Yan
• Luan Chun
• Sun Dawen
• Han Zhong
• Zeng Xinan

Classifications

• F24C7/08

  Arrangement or mounting of control or safety devices · CPC title

• H05B6/725

  Rotatable antennas · CPC title

• H05B6/6455

  the sensors being infrared detectors · CPC title

• H05B6/688 Primary

  for thawing · CPC title

• H05B6/645

  using temperature sensors · CPC title