GB2308465A - Microwave oven for modelling charcoal barbecuing - Google Patents
Microwave oven for modelling charcoal barbecuing Download PDFInfo
- Publication number
- GB2308465A GB2308465A GB9626343A GB9626343A GB2308465A GB 2308465 A GB2308465 A GB 2308465A GB 9626343 A GB9626343 A GB 9626343A GB 9626343 A GB9626343 A GB 9626343A GB 2308465 A GB2308465 A GB 2308465A
- Authority
- GB
- United Kingdom
- Prior art keywords
- string
- barbecuing
- grill
- power spectrum
- microwave oven
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003610 charcoal Substances 0.000 title claims description 15
- 238000001816 cooling Methods 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000010411 cooking Methods 0.000 claims abstract description 10
- 238000001228 spectrum Methods 0.000 claims description 30
- 235000021168 barbecue Nutrition 0.000 abstract description 4
- 235000013305 food Nutrition 0.000 abstract description 2
- 239000000796 flavoring agent Substances 0.000 abstract 1
- 235000019634 flavors Nutrition 0.000 abstract 1
- 238000002474 experimental method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/647—Aspects related to microwave heating combined with other heating techniques
- H05B6/6482—Aspects related to microwave heating combined with other heating techniques combined with radiant heating, e.g. infrared heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/02—Stoves or ranges heated by electric energy using microwaves
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Baking, Grill, Roasting (AREA)
- Electric Ovens (AREA)
Abstract
In a microwave oven for mimicking a barbecuing effect, a heater 2 at the top of the cooking chamber 1 heats a grill 3 and a cooling fan 4 is switched on and off so that the temperature at a central region of the grill fluctuates as it would in a barbecue. The method of determining the switching pattern is disclosed. The aim is to impart a realistic barbecued flavour and odour to the food being cooked.
Description
MICROWAVE OVEN APPARATUS AND METHOD FOR MODELING CHARCOAL
BARBECUING
The present invention relates to a microwave oven, and more particularly to a microwave oven apparatus and method for modeling a charcoal-barbecuing by realizing a frequency property of a thermally variant wave serving as a natural thermal property of charcoal, thereby obtaining a natural odor and taste therefrom as barbecued by charcoal.
A conventional microwave oven serves to warm or simply cook a prepared food so that a user has hardly realized a charcoal-barbecued taste when barbecuing therein.
Accordingly, It is an alm of enbmmments of the present invention to provide a microwave oven apparatus and method for modeling a charcoal-barbecuing by realizing a frequency property of a thermally variant wave serving as a natural thermal property of charcoal, thereby obtaining a natural odor and taste in a barbecue cooked therein as in charcoal barbecuing.
To achieve the above-described aim , the microwave oven
apparatus for modeling a charcoal-barbecuing includes a cooking chamber, a heater provided in an upper portion of the cooking chamber, a grill heated by the heater for barbecuing,
and a cooling fan for being switched on/off in accordance with a thermal variation of a central portion of the grill so as to
fluctuate a temperature of the central portion of the grill.
Further, a microwave oven apparatus for modeling a charcoal-barbecuing may include a controller optimizing an on/off
time of a cooling fan to control a thermal variation of a central portion of a grill, a simulator for simulating the relation between a central temperature of the grill and an on/off time of the cooling fan in accordance with the controller, a power spectrum generator for generating power
spectrum by calculating the value of a power spectrum in accordance with the central thermal wave of the simulated grill, and a string generator for sending to the controller an optimized string value generated by comparing a barbecuing power spectrum signal with a power spectrum signal output from
the power spectrum generator.
Still further, a method for modeling a charcoalbarbecuing in a microwave oven apparatus may include the steps of initializing a string set, judging in accordance with an evaluating function whether a certain string selected from the initialized string set is an optimal value, generating a new string between when the selected string is not an optimal value, leaving a string of the generated strings which is identical to an optimal value and eliminating the rest thereof, evaluating an optimal string of the remaining values and adding the resultant to a population thereof, judging whether the optimal string added to the population is desirable, and obtaining a desired optimal value by repeating the above steps when the string of the optimal value is not desirable judging from the decided resultant, or outputting the string of the optimal value when desirable, thereby determining an on/off time of the cooling fan.
For a better understanding of the present invention and as to how the same may be carried into effect, reference will now be made by way of example to the acccanpanymg drawings m which:
Figure 1 is a simplified cross-sectional view of a microwave oven apparatus and method for modeling a charcoalbarbecuing embodying the present invention;
Figure 2 is a block diagram showing a string value generating device of the microwave oven apparatus and method for modeling a charcoal-barbecuing embodymg the present invention;
Figure 3 is a table showing an input string value for controlling a cooling fan of the microwave oven apparatus and method for modeling a charcoal-barbecuing embodying the present invention;;
Figure 4 is a flow chart showing a string generating method of the microwave oven apparatus and method for modeling a charcoal-barbecuing embodymg the present invention;
Figure 5 is a flow chart showing a thermal variation proof of a heater and a control method till an end of an experiment with regard to the microwave oven apparatus and method for modeling a charcoal-barbecuing ernodying the present invention; Figure 6 is a graph showing a thermal variation of a barbecue grill of the microwave oven apparatus and method for modeling a charcoal-barbecuing embodying the present invention;
Figure 7 is a graph showing a power spectrum according to a thermally variant temperature of the microwave oven apparatus and method for modeling a charcoal-barbecuing embodying the present invention;;
Figure 8A is a table of an optimal input string value in accordance with an embodiment of the present invention;
Figure 8B is a graph showing a power spectrum of a simulation in accordance with an embodiment of the present invention; and
Figure SC is a graph showing a power spectrum in accordance with an embodiment of the present invention.
As shown in Fig. 1 the microwave oven according to an erndimn-t of the present invention includes a cooking chamber 1; a heater 2 provided in an upper portion of the cooking chamber 1; a grill .3 heated by the heater 2 for barbecuing; and a cooling fan 4
for being switched on/off in accordance with a thermal variation of a central portion of the grill 3 so as to
fluctuate a temperature of the central portion of the grill 3.
With reference to Fig. 2, a string value generating devlce embodying the present invention: a controller 5 optimiZing an on/off time of the cooling fan 4 to control a thermal variation of a central portion of the grill 3; a simulator 6
for simulating the relation between a central temperature of
the grill 3 and an on/off time of the cooling fan 4 in accordance with the controller 5; a power spectrum generator 7 for generating a power spectrum by calculating the value of a power spectrum in accordance with the central thermal wave of the simulated grill 3; and a string generator 8 for sending
to the controller 5 an optimized string value generated by comparing a barbecuing power spectrum signal PSb with a power spectrum signal PSa output from the power spectrum generator 7.
Here, a string denotes an optimal value of 2-bit string sets, and yet, as shown in Fig. 3, an optimal value for heating the cooling fan 4 for a predetermined time
(approximately 4 minutes) has one of 240-bit strings so that the 240-bit string is referred to as a string.
Referring to Fig. 4, the string generating method for minimizing an on/off time of the cooling fan 4 embodying the present invention includes the steps of: initializing a string set (41) judging in accordance with an evaluating function whether a certain string selected from the initialized string set is an optimal value (42); generating a new string between when the selected string is not an optimal value (43); leaving a string of the generated strings which is identical to an optimal value and eliminating the rest thereof(44) ; evaluating an optimal string of the remaining values and adding the resultant to a population thereof (45); judging whether the optimal string added to the population is desirable (46); and obtaining a desired optimal value by repeating the above steps when the string of the optimal value is not desirable judging .from the decided resultant, or outputting the string of the optimal value when desirable, thereby determining an on/off time of the cooling fan 4.
As shown in Fig. 5, a thermal variation proof of the heater 2 and a control method till an end of an experiment in measuring a thermal variation for barbecuing an charcoal when modeling a charcoal-barbecuing according an embodiment of the present invention includes the steps of: measuring a thermal variation for barbecuing (51); noticing a relative distribution of a barbecuing energy by using the measured thermal variation
(52); modeling a thermal variation of the heater 2 after viewing the relative distribution of the barbecuing energy
(53); setting an on/off timing point of the cooling fan 4
(54); simulating a thermal variation of the heater 2 by starting from an on/off timing point of the set cooling fan 4
(55); noticing an energy distribution depending on a frequency of the heater 2 by using an thermal variation of a simulated heater (56); detecting whether an error of the energy distribution is within a standard value (57); approaching optimally a charcoal-barbecuing thermal property when the detected error is within a standard value (58); proving and experimenting a thermal variation of the heater 2; and feeding back to the step (54) when the error remains other than a standard value.
The operational principle of the microwave oven embodying
the present invention will be described.
First, when a supply voltage is applied to the microwave oven, a heat is generated by the heater 2 provided at an upper portion in the cooking chamber 1 for heating the barbecuing plate 3 provided in the cooking chamber 1.
In accordance with the heater 2, when a temperature in a central portion of the grill 3 is raised to a desired point, the cooling fan 4 is turned on or off to thereby maintain a constant temperature in the central portion of the grill 3.
Therefore, as shown in Fig. 6, a temperature of a central portion of the grill is constantly maintained by turning on/off the cooling fan 4, thereby enabling the temperature of the central portion of the grill 3 to remain identical to that of a charcoal barbecuing. As a result, when an on/off time in the cooling fan 4 is optimized as shown in Fig. 7, the barbecuing thermal wave forms an approximate line a-b according to a power spectrum for a thermal wave of the central portion of the grill 3.
That is, when a control signal is generated by the controller 5 which controls an on/off operation of the cooling fan 3 so that a temperature of a central portion of the grill 3 can be invariably maintained, the simulator 6 receives a control signal output from the controller 5 and a previous optimal input string signal to thereby simulating the relation between a temperature of the central portion of the grill 3 and an on/off timing point of the cooling fan 4.
Then, the power spectrum generator 7 calculates a spectrum value of a thermal wave of the central portion of the simulated grill 3. In the string generator 8 a barbecuing power spectrum signal PSb is compared with a power spectrum value PSa calculated in the power spectrum generator 7 and generates an optimal string to accordingly send the resultant to the controller 5, thereby optimizing an on/off time of the cooling fan 4.
A method for generating an optimal string to optimize an on/off time of the cooling fan 4 is previously explained with reference to the flow chart as shown in Fig. 4.
Referring to an embodiment for modeling a charcoal barbecuing in the microwave oven embodying the present invention, an optimal value of an on/off time of the cooling fan 4 is obtained during the operation of the microwave oven as shown in Fig. 8A, and by substituting the resultant for a .signal output from the controller 5 and calculating a power spectrum signal according to a thermal wave of the central portion of the simulated grill 3 as shown in Fig. 8B, a power spectrum value of a thermal wave of the central portion of the grill 3 in the microwave oven as shown in Fig. 8C, thereby modeling a charcoal barbecuing in the microwave oven embodymg the present invention.
As described above, the microwave oven of the present invention serves to model a charcoal barbecuing therein by realizing a frequency property of a thermally variant wave serving as a natural thermal property of charcoal, thereby obtaining a natural odor and taste in a barbecue cooked therein as in charcoal barbecuing.
Claims (6)
1. A microwave oven apparatus for modeling a charcoalbarbecuing, comprising:
a cooking chamber;
a heater provided in an upper portion of the cooking chamber;
a grill heated by the heater for barbecuing; and
a cooling fan for being switched on/off in accordance with a thermal variation of a central portion of the grill so as to fluctuate a temperature of the central portion of the grill.
2. The apparatus and method of Claim 1, wherein to optimize an on/off time of the cooling fan a power spectrum of a temperature of the cooking chamber remains approximate to that of a temperature of a charcoal barbecuing.
3. A microwave oven apparatus for modeling a charcoalbarbecuing, comprising:
a controller optimizing an on/off time of a cooling fan .to control a thermal variation of a central portion of a grill;
a simulator for simulating the relation between a central temperature of the grill and an on/off time of the cooling fan in accordance with the controller;
a power spectrum generator for generating power spectrum by calculating the value of a power spectrum in accordance with the central thermal wave of the simulated grill; and
a string generator for sending to the controller an optimized string value generated by comparing a barbecuing power spectrum signal with a power spectrum signal output from the power spectrum generator.
4. A method for modeling a charcoal-barbecuing in a microwave oven apparatus, comprising the steps of:
initializing a string set;
judging in accordance with an evaluating function whether a certain string selected from the initialized string set is an optimal value;
generating a new string between when the selected string is not an optimal value;
leaving a string of the generated strings which is identical to an optimal value and eliminating the rest thereof;
evaluating an optimal string of the remaining values and adding the resultant to a population thereof;
judging whether the optimal string added to the population is desirable; and
obtaining a desired optimal value by repeating the above steps when the string of the optimal value is not desirable judging from the decided resultant, or outputting the string of the optimal value when desirable, thereby determining an on/off time of the cooling fan.
5. A method for charcoal barbecuing in a microwave oven apparatus substantially as hereinbefore described with reference to the accompanying drawings.
6. A microwave oven apparatus substantially as hereinbefore described with reference to the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950052583A KR100196697B1 (en) | 1995-12-20 | 1995-12-20 | Charcoal-Grilled Reproduction Device and Reproduction Method of Microwave Oven |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9626343D0 GB9626343D0 (en) | 1997-02-05 |
| GB2308465A true GB2308465A (en) | 1997-06-25 |
| GB2308465B GB2308465B (en) | 1998-03-11 |
Family
ID=19441756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9626343A Expired - Fee Related GB2308465B (en) | 1995-12-20 | 1996-12-19 | Microwave oven apparatus and method for modeling charcoal-barbecuing |
Country Status (5)
| Country | Link |
|---|---|
| KR (1) | KR100196697B1 (en) |
| CN (1) | CN1121579C (en) |
| BR (1) | BR9606078A (en) |
| GB (1) | GB2308465B (en) |
| IN (1) | IN192283B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD610903S1 (en) | 2007-03-02 | 2010-03-02 | Conagra Foods Rdm, Inc. | Container assembly |
| USD635817S1 (en) | 2006-06-09 | 2011-04-12 | Conagra Foods Rdm, Inc. | Container assembly |
| USD638701S1 (en) | 2010-09-08 | 2011-05-31 | Conagra Foods Rdm, Inc. | Container |
| USD639656S1 (en) | 2010-09-08 | 2011-06-14 | Con Agra Foods RDM, Inc. | Container lid |
| US8302528B2 (en) | 2005-10-20 | 2012-11-06 | Conagra Foods Rdm, Inc. | Cooking method and apparatus |
| USD680426S1 (en) | 2012-06-12 | 2013-04-23 | Conagra Foods Rdm, Inc. | Container |
| US8613249B2 (en) | 2007-08-03 | 2013-12-24 | Conagra Foods Rdm, Inc. | Cooking apparatus and food product |
| US8850964B2 (en) | 2005-10-20 | 2014-10-07 | Conagra Foods Rdm, Inc. | Cooking method and apparatus |
| USD717162S1 (en) | 2012-06-12 | 2014-11-11 | Conagra Foods Rdm, Inc. | Container |
| US8887918B2 (en) | 2005-11-21 | 2014-11-18 | Conagra Foods Rdm, Inc. | Food tray |
| US9027825B2 (en) | 2012-06-12 | 2015-05-12 | Conagra Foods Rdm, Inc. | Container assembly and foldable container system |
| US9132951B2 (en) | 2005-11-23 | 2015-09-15 | Conagra Foods Rdm, Inc. | Food tray |
| US9211030B2 (en) | 2005-10-20 | 2015-12-15 | Conagra Foods Rdm, Inc. | Steam cooking apparatus |
| US9676539B2 (en) | 2013-05-24 | 2017-06-13 | Graphic Packaging International, Inc. | Package for combined steam and microwave heating of food |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2463587B1 (en) * | 2010-12-13 | 2018-04-04 | BSH Hausgeräte GmbH | Cooking device |
| CN102692039B (en) * | 2011-03-25 | 2016-02-10 | 上海松下微波炉有限公司 | A kind of micro-wave oven and control method thereof with baking function |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2127658A (en) * | 1982-07-17 | 1984-04-11 | Microwave Ovens Ltd | Microwave ovens and methods of cooking food |
| GB2237487A (en) * | 1989-10-26 | 1991-05-01 | Brother Ind Ltd | Oven with microwave convection and radiant heating |
-
1995
- 1995-12-20 KR KR1019950052583A patent/KR100196697B1/en not_active Expired - Fee Related
-
1996
- 1996-12-16 IN IN2162CA1996 patent/IN192283B/en unknown
- 1996-12-19 BR BR9606078A patent/BR9606078A/en active Search and Examination
- 1996-12-19 GB GB9626343A patent/GB2308465B/en not_active Expired - Fee Related
- 1996-12-20 CN CN96114252A patent/CN1121579C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2127658A (en) * | 1982-07-17 | 1984-04-11 | Microwave Ovens Ltd | Microwave ovens and methods of cooking food |
| GB2237487A (en) * | 1989-10-26 | 1991-05-01 | Brother Ind Ltd | Oven with microwave convection and radiant heating |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8850964B2 (en) | 2005-10-20 | 2014-10-07 | Conagra Foods Rdm, Inc. | Cooking method and apparatus |
| US10569949B2 (en) | 2005-10-20 | 2020-02-25 | Conagra Foods Rdm, Inc. | Cooking method and apparatus |
| US9505542B2 (en) | 2005-10-20 | 2016-11-29 | Conagra Foods Rdm, Inc. | Cooking method and apparatus |
| US9211030B2 (en) | 2005-10-20 | 2015-12-15 | Conagra Foods Rdm, Inc. | Steam cooking apparatus |
| US8302528B2 (en) | 2005-10-20 | 2012-11-06 | Conagra Foods Rdm, Inc. | Cooking method and apparatus |
| US9815607B2 (en) | 2005-11-21 | 2017-11-14 | Conagra Foods Rdm, Inc. | Food tray |
| US8887918B2 (en) | 2005-11-21 | 2014-11-18 | Conagra Foods Rdm, Inc. | Food tray |
| US9132951B2 (en) | 2005-11-23 | 2015-09-15 | Conagra Foods Rdm, Inc. | Food tray |
| USD653495S1 (en) | 2006-06-09 | 2012-02-07 | Conagra Foods Rdm, Inc. | Container basket |
| USD636218S1 (en) | 2006-06-09 | 2011-04-19 | Conagra Foods Rdm, Inc. | Container assembly |
| USD635817S1 (en) | 2006-06-09 | 2011-04-12 | Conagra Foods Rdm, Inc. | Container assembly |
| US8866056B2 (en) | 2007-03-02 | 2014-10-21 | Conagra Foods Rdm, Inc. | Multi-component packaging system and apparatus |
| USD610903S1 (en) | 2007-03-02 | 2010-03-02 | Conagra Foods Rdm, Inc. | Container assembly |
| US8613249B2 (en) | 2007-08-03 | 2013-12-24 | Conagra Foods Rdm, Inc. | Cooking apparatus and food product |
| USD639656S1 (en) | 2010-09-08 | 2011-06-14 | Con Agra Foods RDM, Inc. | Container lid |
| USD638701S1 (en) | 2010-09-08 | 2011-05-31 | Conagra Foods Rdm, Inc. | Container |
| USD717162S1 (en) | 2012-06-12 | 2014-11-11 | Conagra Foods Rdm, Inc. | Container |
| USD680426S1 (en) | 2012-06-12 | 2013-04-23 | Conagra Foods Rdm, Inc. | Container |
| US9027825B2 (en) | 2012-06-12 | 2015-05-12 | Conagra Foods Rdm, Inc. | Container assembly and foldable container system |
| US9676539B2 (en) | 2013-05-24 | 2017-06-13 | Graphic Packaging International, Inc. | Package for combined steam and microwave heating of food |
| US10301100B2 (en) | 2013-05-24 | 2019-05-28 | Graphic Packaging International, Llc | Package for combined steam and microwave heating of food |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2308465B (en) | 1998-03-11 |
| GB9626343D0 (en) | 1997-02-05 |
| CN1158961A (en) | 1997-09-10 |
| BR9606078A (en) | 1998-09-01 |
| KR100196697B1 (en) | 1999-06-15 |
| IN192283B (en) | 2004-03-27 |
| KR970047203A (en) | 1997-07-26 |
| CN1121579C (en) | 2003-09-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20071219 |