CN101751055A - Food unfreezing method of microwave oven - Google Patents
Food unfreezing method of microwave oven Download PDFInfo
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- CN101751055A CN101751055A CN200810153727A CN200810153727A CN101751055A CN 101751055 A CN101751055 A CN 101751055A CN 200810153727 A CN200810153727 A CN 200810153727A CN 200810153727 A CN200810153727 A CN 200810153727A CN 101751055 A CN101751055 A CN 101751055A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The invention relates to a food unfreezing method of a microwave oven, wherein a sensor probe of the microwave oven measures the food temperature simultaneously with a plurality of sampling points; the food unfreezing method comprises the following steps: a temperature sensor and a controller are initialized; the temperature sensor measures through the plurality of the sampling points; the highest temperature and the lowest temperature are worked out through comparison; the measured highest temperature and the measured lowest temperature are respectively compared with the set upper limit and the set lower limit of the temperature, and the microwave oven is controlled to work according to the comparison results; and if the measured highest temperature is lower than the upper limit of the temperature and the measured lowest temperature is also lower than the lower limit of the temperature, an object needs to be continued to be unfrozen, the power level of the microwave oven is adjusted according to the lowest temperature, the step of measuring with the plurality of the sampling points is executed again, until the unfreezing is suspended, so as to ensure the object has the best unfreezing effect.
Description
Technical field
The invention belongs to the technical field of micro-wave oven, be specifically related to a kind of multi-point temp for the treatment of unfrozen object by the multi-sample point measurement, utilize minimum temperature and the maximum temperature measured to control the step of thawing simultaneously, guarantee that object can access the food unfreezing method that optimum solution is frozen the micro-wave oven of effect.
Technical background
Micro-wave oven is that magnetron produces microwave behind power connection, and these microwave irradiations on heating objects such as food and the device of cooking food.Such micro-wave oven can be divided into home-use micro-wave oven that is equipped with small-sized magnetron and the commerce micro-wave oven that is equipped with large-scale or a plurality of magnetrons.Micro-wave oven can also be divided into home-use micro-wave oven according to the mode of heat food and generally adopt rotation to fill the glass rotating disk mode of food, and commerce mainly adopts the figure of confusion mode of scattered radiation microwave with micro-wave oven.Commercial mainly be applicable to the convenience store that utilization rate is high and the food supply retail shop of cooking food at short notice, so generally need the high relatively output of more home-use micro-wave oven with micro-wave oven.
Fig. 1 is the microwave oven structure synoptic diagram.
As shown in Figure 1, micro-wave oven comprises by the shell that forms outward appearance, furnace chamber 20 and is positioned at the electricity storage chamber 30 of furnace chamber 20 right side sides, also comprises the door 40 that is located at furnace chamber 20 fronts.Right-hand member at the lateral surface of door 40 is provided with handle 41, and the two ends of handle 41 are screwed with door 40 and are connected.Shell forms the micro-wave oven outward appearance, also plays the effect of the inner furnace chamber 20 of protection simultaneously, so shell generally will be made of the steel plate with certain intensity.Shell comprises the rear panel 17 at the base plate 13 below the top panel 11 of the top and two sides that cover furnace chamber 20 simultaneously, protection, the front panel 15 that forms furnace chamber 20 fronts and protection furnace chamber 20 back sides.Furnace chamber 20 is spaces of cooking such as cooking food thing, constitutes the food after both can having put into food and take out the cooking from opening the place ahead of furnace chamber 20 by the tetragonal chest of front openings.There is certain space the right side side of furnace chamber 20, and this space is to be the electricity storage chamber 30 that electronic unit is set, and electricity storage chamber 30 inside are provided with a plurality of electronic units such as transformer 31, magnetron 33, capacitor 37.Be provided with control panel assembly 26 in the front of electricity storage chamber 30.
In addition, the inside of electricity storage chamber 30 is provided with demarcation strip 39 between transformer 31 and radiator fan 35.Transformer 31, radiator fan 35, capacitor 37 and demarcation strip 39 be fixed on sub-panel above.Between sub-panel and base plate 13 top at intervals.
In a plurality of electronic units, transformer 31 and magnetron 33 produce the microwave of irradiation furnace chamber 20 inside.Electronic unit generates heat in the process that produces microwave, so in the time of cooking food, the temperature of electricity storage chamber 30 rises.Need to suck extraneous air for the electricity storage chamber 30 of cooling off heating, so radiator fan 35 sucks extraneous air.
In the temperature sensor of micro-wave oven, sensor probe is arranged on outside the furnace chamber of micro-wave oven, see through the observation port that forms on the furnace chamber and receive the infrared signal that food sends in the furnace chamber and measure food temperature, temperature signal is converted to the controller that electric signal is input to micro-wave oven; Sensor outer housing holds protection and fixation of sensor probe.
In the food unfreezing method of the micro-wave oven of prior art, sensor probe adopts is the metering system of a sampling spot independently, measure comprehensive temperature for the treatment of unfrozen object simultaneously by a sampling spot, and go out a temperature value as the object temperature that compares by algorithm computation.In fact owing to treat that unfrozen object does not always have uniform physical state and identical physical characteristics, cause sensor also untrue by the object temperature value that single sampling spot obtains, temperature sensor can't obtain treating the temperature distribution state of thawed foodstuff exactly, also just can't objectively pass judgment on the defrost result of food, in course of defrosting, always can cause the situation of thawing or owing to thaw.
Summary of the invention
The present invention provides a kind of multi-point temp for the treatment of unfrozen object by the multi-sample point measurement for solving the technical matters that exists in the prior art, utilize minimum temperature and the maximum temperature measured to control the step of thawing simultaneously, guarantee that object can access the food unfreezing method that optimum solution is frozen the micro-wave oven of effect.
The technical scheme that the present invention takes for the technical matters that exists in the solution prior art is:
The sensor probe of micro-wave oven of the present invention adopts a plurality of sampling spots simultaneously food temperature to be measured; Food unfreezing method may further comprise the steps: temperature sensor, controller initialization; Draw the maximum temperature and the minimum temperature of current time object by the measurement temperature that contrasts each sampling spot; The maximum temperature measured and the ceiling temperature of setting are compared, if measure that temperature is higher than ceiling temperature then the operation of forcing to stop micro-wave oven, preventing that object from being crossed is thawed; Be lower than under the situation of ceiling temperature in the maximum temperature of measuring, the minimum temperature that measures is compared with the lower limit of design temperature,, illustrate that then course of defrosting finishes, stop the running of micro-wave oven if the temperature of measurement is higher than lower limit temperature; If the maximum temperature of measuring is lower than the minimum temperature of ceiling temperature and measurement and also is lower than lower limit temperature, then this object need continue to thaw, the power grade that adjust micro-wave oven according to the minimum temperature of measuring this moment heats object, thereby continue to re-execute the multi-sample point measuring process of temperature sensor, until the termination of thawing.
The present invention can also adopt following technical measures:
Each sampling spot is arranged on the diameter of meal tray.
Temperature sensor is started working, and treats the multi-point temp of unfrozen object by a plurality of sampling spot measurements, and the measurement result that does not cover or do not cover fully the sampling spot for the treatment of unfrozen object does not possess representativeness, rejected.
The temperature range at the minimum temperature place of the object that goes out according to temperature sensor measurement is set the power grade of corresponding micro-wave oven this moment.
Every kind of power grade all has the fixing minimum execution time, enters into different temperature ranges even if minimum temperature changes, and also will just can change to different power grades after finishing the current ongoing minimum execution time.
Divide the temperature ranges of different capacity grades with 3 ℃ and 8 ℃: when the minimum temperature of sampling spot less than 3 ℃, micro-wave oven adopts first power grade to heat; When the minimum temperature of sampling spot greater than 3 ℃ of whiles less than 8 ℃, micro-wave oven adopts second power grade to heat; When the minimum temperature of sampling spot greater than 8 ℃, micro-wave oven adopts the 3rd power grade to heat; The firepower of first, second, third power grade reduces successively, and the minimum execution time of each power grade is 30 seconds.
Advantage and good effect that the present invention has are:
In the food unfreezing method of micro-wave oven of the present invention, the sensor probe of micro-wave oven adopts a plurality of sampling spots simultaneously food temperature to be measured, each sampling spot is arranged on the diameter of meal tray, sensor probe sampling spot is as much as possible all dropped on the food, and the feedback temperature difference of guaranteeing temperature sensor is in acceptable error range.The sampling spot that covers fully on the food is many more, and the temperature distribution state of each point just can be got over all sidedly and obtain on the food, also just approaches the actual state of food heating more, thereby heating process is controlled accurately.The carrying out of controlling the step of thawing simultaneously by the minimum temperature that measures and maximum temperature at every turn, and change the power grade of micro-wave oven at any time according to minimum temperature, guarantee that object can access the food unfreezing method that optimum solution is frozen the micro-wave oven of effect.
Description of drawings
Fig. 1 is the microwave oven structure synoptic diagram;
Fig. 2 is the process flow diagram of the food unfreezing method of micro-wave oven of the present invention.
Embodiment
It is following that the present invention is described in detail with reference to drawings and Examples:
Fig. 2 is the process flow diagram of the food unfreezing method of micro-wave oven of the present invention.
As shown in Figure 2, in the food unfreezing method of micro-wave oven of the present invention, the sensor probe of micro-wave oven adopts a plurality of sampling spots simultaneously food temperature to be measured, and each sampling spot is arranged on the diameter of meal tray; Food unfreezing method may further comprise the steps: temperature sensor, controller initialization; Temperature sensor is started working, and treats the multi-point temp of unfrozen object by a plurality of sampling spot measurements, and the measurement result that does not cover or do not cover fully the sampling spot for the treatment of unfrozen object does not possess representativeness, rejected; Draw the maximum temperature and the minimum temperature of current time object by the measurement temperature that contrasts each sampling spot; The maximum temperature measured and the ceiling temperature of setting are compared, if measure that temperature is higher than ceiling temperature then the operation of forcing to stop micro-wave oven, preventing that object from being crossed is thawed; Be lower than under the situation of ceiling temperature in the maximum temperature of measuring, the minimum temperature that measures is compared with the lower limit of design temperature,, illustrate that then course of defrosting finishes, stop the running of micro-wave oven if the temperature of measurement is higher than lower limit temperature; If the maximum temperature of measuring is lower than the minimum temperature of ceiling temperature and measurement and also is lower than lower limit temperature, then this object need continue to thaw, the power grade that adjust micro-wave oven according to the minimum temperature of measuring this moment heats object, thereby continue to re-execute the multi-sample point measuring process of temperature sensor, until the termination of thawing.
The temperature range at the minimum temperature place of the object that goes out according to temperature sensor measurement is set the power grade of corresponding micro-wave oven this moment.Every kind of power grade all has the fixing minimum execution time, enters into different temperature ranges even if minimum temperature changes, and also will just can change to different power grades after finishing the current ongoing minimum execution time.
Divide the temperature ranges of different capacity grades with 3 ℃ and 8 ℃: when the minimum temperature of sampling spot less than 3 ℃, micro-wave oven adopts first power grade to heat; When the minimum temperature of sampling spot greater than 3 ℃ of whiles less than 8 ℃, micro-wave oven adopts second power grade to heat; When the minimum temperature of sampling spot greater than 8 ℃, micro-wave oven adopts the 3rd power grade to heat.The firepower of first, second, third power grade reduces successively, the minimum execution time of each power grade is 30 seconds, every kind of power grade will just can be transformed into after having carried out 30 seconds in the lower power grade of firepower at least, thereby prevent the phase mutual interference that different power grades causes when directly switching, avoid the mistake of food to thaw.
In the food unfreezing method of micro-wave oven of the present invention, the sensor probe of micro-wave oven adopts a plurality of sampling spots simultaneously food temperature to be measured, each sampling spot is arranged point-blank, sensor probe sampling spot is as much as possible all dropped on the food, and the feedback temperature difference of guaranteeing temperature sensor is in acceptable error range.The sampling spot that covers fully on the food is many more, and the temperature distribution state of each point just can be got over all sidedly and obtain on the food, also just approaches the actual state of food heating more, thereby heating process is controlled accurately.The carrying out of controlling the step of thawing simultaneously by the minimum temperature that measures and maximum temperature at every turn simultaneously, and change the power grade of micro-wave oven at any time according to minimum temperature, guarantee that object can access the food unfreezing method that optimum solution is frozen the micro-wave oven of effect.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention with preferred embodiment openly as above, yet, be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, certainly can utilize the technology contents of announcement to make a little change or modification, become the equivalent embodiment of equivalent variations, be the content that does not break away from technical solution of the present invention in every case, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all belong in the scope of technical solution of the present invention.
Claims (6)
1. the food unfreezing method of a micro-wave oven, it is characterized in that: the sensor probe of micro-wave oven adopts a plurality of sampling spots simultaneously food temperature to be measured; Food unfreezing method may further comprise the steps: temperature sensor, controller initialization; Draw the maximum temperature and the minimum temperature of current time object by the measurement temperature that contrasts each sampling spot; The maximum temperature measured and the ceiling temperature of setting are compared, if measure that temperature is higher than ceiling temperature then the operation of forcing to stop micro-wave oven, preventing that object from being crossed is thawed; Be lower than under the situation of ceiling temperature in the maximum temperature of measuring, the minimum temperature that measures is compared with the lower limit temperature of setting,, illustrate that then course of defrosting finishes, stop the running of micro-wave oven if the minimum temperature of measurement is higher than lower limit temperature; If the maximum temperature of measuring is lower than the minimum temperature of ceiling temperature and measurement and also is lower than lower limit temperature, then this object need continue to thaw, the power grade that adjust micro-wave oven according to the minimum temperature of measuring this moment heats object, thereby continue to re-execute the multi-sample point measuring process of temperature sensor, until the termination of thawing.
2. the food unfreezing method of micro-wave oven according to claim 1, it is characterized in that: each sampling spot is arranged on the diameter of meal tray.
3. the food unfreezing method of micro-wave oven according to claim 1 and 2, it is characterized in that: temperature sensor is started working, treat the multi-point temp of unfrozen object by a plurality of sampling spot measurements, the measurement result that does not cover or do not cover fully the sampling spot for the treatment of unfrozen object does not possess representativeness, is rejected.
4. the food unfreezing method of micro-wave oven according to claim 1 is characterized in that: the temperature range at the minimum temperature place of the object that goes out according to temperature sensor measurement is set the power grade of corresponding micro-wave oven this moment.
5. the food unfreezing method of micro-wave oven according to claim 4, it is characterized in that: every kind of power grade all has the fixing minimum execution time, enter into different temperature ranges even if minimum temperature changes, also will after finishing the current ongoing minimum execution time, just can change to different power grades.
6. the food unfreezing method of micro-wave oven according to claim 5 is characterized in that: with 3 ℃ and 8 ℃ of temperature ranges of dividing the different capacity grades: when the minimum temperature of sampling spot less than 3 ℃, micro-wave oven adopts first power grade to heat; When the minimum temperature of sampling spot greater than 3 ℃ of whiles less than 8 ℃, micro-wave oven adopts second power grade to heat; When the minimum temperature of sampling spot greater than 8 ℃, micro-wave oven adopts the 3rd power grade to heat; The firepower of first, second, third power grade reduces successively, and the minimum execution time of each power grade is 30 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810153727A CN101751055A (en) | 2008-12-04 | 2008-12-04 | Food unfreezing method of microwave oven |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810153727A CN101751055A (en) | 2008-12-04 | 2008-12-04 | Food unfreezing method of microwave oven |
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| CN101751055A true CN101751055A (en) | 2010-06-23 |
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| CN200810153727A Pending CN101751055A (en) | 2008-12-04 | 2008-12-04 | Food unfreezing method of microwave oven |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676680A (en) * | 2014-02-14 | 2015-06-03 | 广东美的厨房电器制造有限公司 | Microwave oven and microwave thawing method for microwave oven |
| CN105318370A (en) * | 2015-09-09 | 2016-02-10 | 深圳市福田区青少年科技教育协会 | Intelligent environment-friendly microwave oven |
| CN104676679B (en) * | 2014-02-14 | 2016-11-02 | 广东美的厨房电器制造有限公司 | Microwave oven and the microwave thawing method for microwave oven |
| CN107390747A (en) * | 2017-07-31 | 2017-11-24 | 北京宇航系统工程研究所 | A kind of temperature control system |
| CN107504526A (en) * | 2017-07-11 | 2017-12-22 | 宁波高新区敦和科技有限公司 | The energy-saving control method and control system of a kind of micro-wave oven |
| CN107549288A (en) * | 2016-07-01 | 2018-01-09 | 青岛海尔智能技术研发有限公司 | A kind of unfreezing control method for thawing apparatus |
| WO2018223946A1 (en) * | 2017-06-06 | 2018-12-13 | 青岛海尔股份有限公司 | Thawing method for thawing apparatus |
| CN109062277A (en) * | 2018-08-23 | 2018-12-21 | 珠海格力电器股份有限公司 | Food heating method and device, storage medium and processor |
| WO2019179038A1 (en) * | 2018-03-22 | 2019-09-26 | 佛山市顺德区美的电热电器制造有限公司 | Temperature control method and apparatus for cookware, and cookware and storage medium |
| WO2020156333A1 (en) * | 2019-01-28 | 2020-08-06 | 青岛海尔特种电冰箱有限公司 | Heating device and refrigerator having same |
| CN114205942A (en) * | 2020-09-17 | 2022-03-18 | 广东美的厨房电器制造有限公司 | Microwave cooking apparatus, control method of microwave cooking apparatus, and readable storage medium |
-
2008
- 2008-12-04 CN CN200810153727A patent/CN101751055A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676680A (en) * | 2014-02-14 | 2015-06-03 | 广东美的厨房电器制造有限公司 | Microwave oven and microwave thawing method for microwave oven |
| CN104676679B (en) * | 2014-02-14 | 2016-11-02 | 广东美的厨房电器制造有限公司 | Microwave oven and the microwave thawing method for microwave oven |
| CN104676680B (en) * | 2014-02-14 | 2018-09-14 | 广东美的厨房电器制造有限公司 | Micro-wave oven and microwave thawing method for micro-wave oven |
| CN105318370A (en) * | 2015-09-09 | 2016-02-10 | 深圳市福田区青少年科技教育协会 | Intelligent environment-friendly microwave oven |
| CN107549288A (en) * | 2016-07-01 | 2018-01-09 | 青岛海尔智能技术研发有限公司 | A kind of unfreezing control method for thawing apparatus |
| US11197352B2 (en) | 2017-06-06 | 2021-12-07 | Haier Smart Home Co., Ltd. | Thawing method for thawing device |
| WO2018223946A1 (en) * | 2017-06-06 | 2018-12-13 | 青岛海尔股份有限公司 | Thawing method for thawing apparatus |
| CN107504526A (en) * | 2017-07-11 | 2017-12-22 | 宁波高新区敦和科技有限公司 | The energy-saving control method and control system of a kind of micro-wave oven |
| CN107390747A (en) * | 2017-07-31 | 2017-11-24 | 北京宇航系统工程研究所 | A kind of temperature control system |
| CN107390747B (en) * | 2017-07-31 | 2019-08-09 | 北京宇航系统工程研究所 | A kind of temperature control system |
| WO2019179038A1 (en) * | 2018-03-22 | 2019-09-26 | 佛山市顺德区美的电热电器制造有限公司 | Temperature control method and apparatus for cookware, and cookware and storage medium |
| CN110297512A (en) * | 2018-03-22 | 2019-10-01 | 佛山市顺德区美的电热电器制造有限公司 | Temprature control method, device, cooking apparatus and the storage medium of cooking apparatus |
| US20210015298A1 (en) * | 2018-03-22 | 2021-01-21 | Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co., Ltd. | Temperature control method and apparatus for cookware, and cookware and storage medium |
| CN109062277A (en) * | 2018-08-23 | 2018-12-21 | 珠海格力电器股份有限公司 | Food heating method and device, storage medium and processor |
| WO2020156333A1 (en) * | 2019-01-28 | 2020-08-06 | 青岛海尔特种电冰箱有限公司 | Heating device and refrigerator having same |
| CN114205942A (en) * | 2020-09-17 | 2022-03-18 | 广东美的厨房电器制造有限公司 | Microwave cooking apparatus, control method of microwave cooking apparatus, and readable storage medium |
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Open date: 20100623 |