CN106322448B - The heating means of cookware - Google Patents

The heating means of cookware Download PDF

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Publication number
CN106322448B
CN106322448B CN201510402128.5A CN201510402128A CN106322448B CN 106322448 B CN106322448 B CN 106322448B CN 201510402128 A CN201510402128 A CN 201510402128A CN 106322448 B CN106322448 B CN 106322448B
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CN
China
Prior art keywords
heating
temperature
cookware
gas
gas flow
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Expired - Fee Related
Application number
CN201510402128.5A
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Chinese (zh)
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CN106322448A (en
Inventor
黄重景
黄锦颖
黄信铭
黄信雄
叶严仁
林冠州
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Grand Mate Co Ltd
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Grand Mate Co Ltd
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Publication date
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Priority to CN201510402128.5A priority Critical patent/CN106322448B/en
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Abstract

The present invention is a kind of heating means of cookware, which includes the following steps:A, the gas with one first gas flow is provided to the heating device, to heat the cookware;B, the temperature of the cookware is monitored, and obtains the temperature of the cookware by a heating time of one first temperature rise a to second temperature;C, the weight of the heating object in the cookware is judged according to first gas flow and the heating time;D, when the temperature of the cookware reaches a third temperature, the gas with one second gas flow will be provided to the heating device according to the weight of the heating object, the temperature of the cookware is set to be maintained at the third temperature, wherein second gas flow is less than first gas flow.

Description

The heating means of cookware
Technical field
The present invention is related with gas control;Particularly relate to a kind of heating means of cookware.
Background technology
Utensil currently used for a large amount of food materials that boil is typically based on gas pot, by taking gas pot for cooking rice as an example, gas pot for cooking rice Compared to the advantages of electronics pot for cooking rice be gas expense it is cheap compared with the electricity charge, and burn gas caused by thermal energy be more than use electric power The thermal energy of generation so that rice and water in cookware can be sufficiently mixed, well-done meal taste good, and the time boiled is short.
The temperature that the heating device of existing gas pot thermally expands inductive switching cookware using one, in the temperature of the cookware It when being raised to temperature (common is 135 degree Celsius) of acquiescence, thermally expands switch start and blocks the supply of gas, and stop heating.
For existing gas pot for cooking or when stewing food materials, lasting big fire heating can only destroy the appearance of food materials, nothing Method will be in the essence infusion to soup of food materials.In addition, the soup of food materials can be boiled always dry to receiving in pot, the temperature of cookware could reach It to 135 degree Celsius, hereat can just stop heating, therefore, still need to personnel for boil water, cooking or when stewing food materials and aside see It cares for, quite has inconvenience using upper.Therefore the design of existing gas pot do not attain yet it is perfect, still have much room for improvement place.
Invention content
In view of this, the purpose of the present invention is to provide a kind of method for heating and controlling of cookware, can accurately to cookware into Row heating.
For edge to reach above-mentioned purpose, the heating means of cookware provided by the present invention are applied to a heating device, heating dress Set to burn gas to be heated to the cookware, for the cookware for containing a heating object, which includes following step Suddenly:A, the gas with one first gas flow is provided to the heating device, to heat the cookware;B, the temperature of the cookware is monitored Degree, and the temperature of the cookware is obtained by a heating time of one first temperature rise a to second temperature;C, according to this first watt This flow and the heating time judge the weight of the heating object cookware Nei;D, reach a third temperature in the temperature of the cookware When, the gas with one second gas flow will be provided to the heating device according to the weight of the heating object, wherein this second Gas flow is less than first gas flow.
Effect of the invention is that the weight by calculating heating object, can extrapolate the second gas flow, it is accurate right Cookware heats, and allows and cooks that well-done quality of food is consistent, and enable gas for different food materials, deal and cooking pattern into Row boils, to reach multiduty function.
Description of the drawings
Fig. 1 is the Organization Chart of gas.
Fig. 2 is the method for heating and controlling flow chart of the first preferred embodiment of the invention.
【Symbol description】
100 gas
10 gas valves
12 gas pipelines
20 heating devices
30 temperature sensors
40 control units
42 A/D conversion circuits
44 computing circuits
46 control circuits
48 timers
50 input units
60 memories
200 cookwares
210 heating objects
S110~S160 steps
Specific implementation mode
For that can be illustrated more clearly that the present invention, hereby lifts preferred embodiment and diagram is coordinated to be described in detail as after.
Referring to Fig. 1, for the gas 100 of application the first preferred embodiment method for heating and controlling of the invention, to add A hot cookware 200, the gas 100 include a gas valve 10, a heating device 20, a temperature sensor 30, one control Unit 40, an input unit 50 and a memory 60.
The input unit 50 is touch-control display panel, and different heated moulds is carried out for user before heating the cookware 200 Formula is set, for example, the different modes such as aqueous mode, cooking pattern, pattern of cooking or halogen Dietary pattern are boiled, the heating mode storage It is stored in memory 60.The control unit 40 is according to the selected heating mode of user, and extraction wherein one should add out of memory 60 Heat pattern, to control the action of the gas valve 10, each heating mode corresponds to a predetermined time, and the predetermined time is as in Only supply the foundation of gas.
The gas valve 10 is set on the gas pipeline 12 for being connected to the heating device 20, and the gas valve 10 is controllably Adjust the gas flow for being supplied to the heating device 20.In practice, the gas valve 10 can be used gas proportioning valve, stepper valve etc. by Control signal driving and change gas flow by way of design.The heating device 20 receives watt from the gas valve 10 This simultaneously burns, to heat the cookware 200 of side placed on it.
The temperature sensor 30 is a negative tempperature coefficient thermistor sensor (NTC Thermistor), the temperature sensing Device 30 contacts the bottom of the cookware 200, the temperature for monitoring the cookware 200, and according to the temperature of the cookware 200, exports one The electric signal of corresponding simulation.
The control unit 40 is electrically connected the temperature sensor 30, the gas valve 10, the memory 60 and the input unit 50. The control unit 40 includes an A/D conversion circuit 42, a computing circuit 44, a control circuit 46 and a timer 48.The electric signal that the temperature sensor 30 is exported is converted into the potential value of number simultaneously by the A/D conversion circuit 42 It is output to the computing circuit 44, since the temperature sensor 30 is negative temperature coefficient, the electricity of the electric signal of its corresponding output Bit value declines with temperature rise.The computing circuit 44 calculated based on the potential value received the cookware 200 by Temperature change when hot, and judge the state that the current cookware 200 heats according to the temperature change calculated.In addition operation electricity Road 44 also exports corresponding control signal to the gas valve 10, with control gas flow through the control circuit 46.The timer 48 are used for the timing 200 required time of heating cookware.
In addition, the present invention before carrying out computer heating control, establishes a gas flow table of comparisons, this watt prior to the memory 60 in advance This flow table of comparisons include multiple referential weights and it is corresponding it is multiple refer to gas flow, wherein the referential weight is pair The heating object 210 of different weight in cookware 200 is answered, referential weight is heavier, and corresponding reference gas flow is higher, for example, When the weight of the heating object 210 is 1 kilogram, the reference gas flow of first segment is provided;When the weight of the heating object 210 When being 1.5 kilograms, the reference gas flow of second segment is provided, the reference gas flow of second segment is more than the reference gas of first segment Flow.For adjusting gas flow according to the weight of heating object, occupation mode repeats the gas flow table of comparisons after holding.
Said structure design is utilized as a result, through heating means shown in Fig. 2, you can to the heating object in cookware 200 210 are heated, and heating object 210 refers to or mixtures thereof food materials, water, seasoning.The heating means of the present invention include following Step:
Step S110:Select heating mode.In this step, user first places heating object 210 in cookware 200, And by the input unit 50 by selecting wherein one heating mode in the heating mode.
Step S120:The gas with the first gas flow is provided to heating device 20.In this step, the control unit 40 control the opening degree of the gas valve 10, make have the first gas flow, the later heating by the gas of the gas valve 10 Device 20 lights gas, to be heated to the cookware 200.
Step S130:The temperature of cookware 200 is monitored, and obtains the temperature of cookware 200 by one first temperature rise to 1 the One heating time of two temperature.In this step, for the cookware 200 while heating, which senses the cookware 200 temperature, and corresponding potential value declines with the temperature rise of the cookware 200, then according to analog/digital conversion Circuit 42 and the computing circuit 44, calculate the actual temperature change in cookware 200.
At the same time, which then calculates what cookware 200 was spent by first temperature rise to the second temperature Time, in the present embodiment, the first temperature is for 50 degree Celsius, and second temperature is for 90 degree Celsius.
Step S140:The weight of the heating object 210 cookware 200 Nei is judged according to the first gas flow and the heating time Amount.In this step, first first gas flow is multiplied with the heating time, and obtains a gas consumption.Then, operation Circuit 44 obtains the weight of the heating object 210 by calculating formula m=H/ (Δ T × K) calculating, and wherein m is the heating object 210 weight;H is the energy of the corresponding gas consumption, and as gas consumption is multiplied by the calorific value of unit gas amount;Δ T is Temperature difference between first temperature and the second temperature;K is the specific heat of the heating object 210, and is being boiled or halogen food During, usual water occupies maximum ratio in heating object 210, therefore can set K as the specific heat of water.
Step S150:When the temperature of the cookware 200 reaches a third temperature, it will thus provide to the Gas-Flow of heating device 20 Amount is changed to one second gas flow by first gas flow, and the second gas flow is less than the first gas flow, the third temperature Degree is 100° centigrade in the present embodiment.In this step, first lasting to provide the gas with first gas flow to the heating Device 20, after so that the cookware 200 is reached third temperature, the weight of the control circuit 46 according to the heating object 210, output corresponds to Control signal to the gas valve 10, so that gas valve 10 is provided the gas with the second gas flow to the heating device 20, make The temperature of the cookware 200 is maintained at the third temperature.
The judgement for reaching the third temperature is that the control circuit 46 judgement works as the constant temperature of the cookware 200 for a period of time When no longer changing (heating object 210 is to reach boil condition), then judge that the cookware 200 reaches the third temperature.In practice, also But the heating slope by the first temperature to second temperature when the cookware 200 is heated is monitored, and in the absolute of the heating slope When value is less than a predetermined value, judge that the temperature of the cookware 200 reaches the third temperature;Either directly surveyed by temperature sensor 30 The temperature measured and obtain the cookware 200 reaches the third temperature.
When cookware 200 reaches the third temperature, it will usually it is the heating object 210 in cookware 200 to reach boil condition, And it is boil condition that as long as the gas flow that is provided later, which keeps heating object 210, therefore the second gas flow can be small In first gas flow, to avoid firepower is too big and cause heating object 210 burn or cookware 200 in water overflow.
The size of the second gas flow of the present embodiment is obtained by comparing the gas flow table of comparisons in the memory 60 Preferable gas flow.By the reference weight of the weight of the heating object 210 calculated in step 140 and the gas flow table of comparisons Amount compares, then is set as second gas flow with reference to gas flow by corresponding.This design can be according to the heating object 210 Weight number, to provide the size of the second different gas flows, can avoid cause in cookware 200 because temperature is too high Food materials are burnt or temperature is too low and cause food materials that can not be cooked.
Step S160:According to the heating mode, make the second gas flow for being provided to the heating device 20 in lasting feeding After one predetermined time, stop gas to the heating device 20.In this step, which is dependent on institute in step S110 The heating mode of selection, for a period of time with the second gas flow of lasting offer, such as aqueous mode is boiled in selection, then provides second watt The gas of this flow continues 1 minute;Cooking pattern, the then gas for providing the second gas flow is selected to continue 5 minutes;Select halogen food Object pattern, the then gas for providing the second gas flow continue 30 minutes.After having served as the predetermined time, the output of control circuit 46 corresponds to Control signal to the gas valve 10, with closed gas.It is different can to meet user by different mode of heatings by the present invention Demand enables gas 100 to reach multiduty purpose.
In a second embodiment, also the second temperature and the third temperature can be again set at 100° centigrade, that is, should And then cookware 200 calculates the weight of heating object 210 when up to 100 degree, and after heating time has been calculated, then will supply The gas flow of the heating device 20 is changed to second gas flow.
In the third embodiment, between step S150 to step S160, a judgment step can be added, to judge The temperature of the cookware 200 is when providing the second gas flow, if is more than or less than the third temperature.When the temperature of the cookware 200 When degree is more than the third temperature, no moisture in cookware 200 is indicated, then judge that the cookware 200 is sky burning state, then stop to provide Gas is to the heating device 20, the damage to avoid cookware 200 or generation fire.And when the temperature of the cookware 200 is by third When temperature deteriorates to less than four temperature of the third temperature, indicate that the water in cookware 200 overflows, gas flow is insufficient or watt This such as interrupts at reasons, makes fray-out of flame, thus in order to prevent gas leakage the problem of, then stop to provide gas to the heating device 20, to protect the life and property safety of user.
Since heating object is usually made of various food in use, such as when cooking, what heating object was included Food materials are substantially rice and water, or even can sometimes add other food materials.In order in response to such situation, implement the 4th It, also can by a variety of different food materials and respectively the specific heat of combustion corresponding to the food materials builds on the memory 60 before step S110 in example In, before heating the food materials are selected through the input unit 50 by user according to institute's food materials to be used and ratio In at least both as the heating object, and set through the input unit 50 ratio of selected at least two food materials. After the completion of setting, which generates an equivalent specific heat of combustion according to the specific heat of combustion of selected food materials and the ratio of food materials. And specific heat K of the computing circuit 44 using the equivalent specific heat value as heating object in step S140, substitute into calculating formula m=H/ (Δ T × K) calculating obtains the weight of the heating object 210, to carry out subsequent plus thermally operated control.For example, institute The food materials of selection include the first food materials and the second food materials, and the first food materials specific heat of combustion is K1, and the second food materials specific heat of combustion is K2, and the two Ratio be ratio that A1: A2, A1 is the first food materials, A2 is the ratio of the second food materials, then the calculating formula of equivalent specific heat value is (K1*A1+K2*A2)/(A1+A2).If n kind food materials mixing then equivalent specific heat value be (K1*A1+K2*A2+...+Kn*An)/ (A1+A2+...+An)。
In conclusion the heating means of cookware of the present invention are by calculating the weight of heating object, and corresponding gas flow The table of comparisons can extrapolate the second gas flow, accurately to be heated to cookware, allow to cook well-done quality of food consistent, and make watt This utensil can be directed to different food materials, deal and cooking pattern and boil, to reach multiduty function.
The foregoing is merely preferably possible embodiments of the invention, description of the invention is applied such as and applies for a patent model Equivalence changes carried out by enclosing ought to be included in the scope of the claims of the present invention.

Claims (9)

1. a kind of heating means of cookware, be applied to a heating device, the heating device to burn gas with to the cookware into Row heating, for containing a heating object, which includes the following steps the cookware:
A, the gas with one first gas flow is provided to the heating device, to heat the cookware;
B, the temperature of the cookware is monitored, and obtains the temperature of the cookware by a heating of one first temperature rise a to second temperature Time;
C, first gas flow is multiplied with the heating time, and obtains a gas consumption, then according to the gas consumption Obtain the weight of the heating object;And
D, reach a third temperature in the temperature of the cookware, will be provided with one second Gas-Flow according to the weight of the heating object The gas of amount is to the heating device, wherein second gas flow is less than first gas flow.
2. heating means as described in claim 1, which is characterized in that step c is somebody's turn to do according to calculating formula m=H/ (Δ T × K) The weight of heating object, wherein m is the weight of the heating object, and H be the energy of the corresponding gas consumption, Δ T for this first Temperature difference between temperature and the second temperature, K are the specific heat of the heating object.
3. heating means as claimed in claim 2, which is characterized in that include to establish a variety of different food materials before step a And each specific heat of combustion corresponding to the food materials, and by being selected wherein at least both as the heating object in the food materials, and according to An equivalent specific heat of combustion is generated according to the specific heat of combustion of selected food materials and the ratio of food materials;The specific heat of the heating object is in step c The equivalent specific heat value.
4. heating means as claimed in claim 3, which is characterized in that the food materials selected before step a are the first food materials and the Two food materials;The calculating formula of the equivalent specific heat value is (K1*A1+K2*A2)/(A1+A2), and wherein K1 is the first food materials specific heat of combustion, K2 is the second food materials specific heat of combustion, and A1 is the ratio of the first food materials, and A2 is the ratio of the second food materials.
5. heating means as described in claim 1, which is characterized in that include to establish gas flow control before step a Table, the gas flow table of comparisons include multiple referential weights and it is corresponding it is multiple refer to gas flow;This is added in step d The weight of hot object is compared with the referential weight of the gas flow table of comparisons, and corresponding this is set with reference to gas flow It is set to second gas flow.
6. heating means as described in claim 1, which is characterized in that further include the following steps:
Include that wherein one heating mode is selected from multiple heating modes before step a, wherein the heating mode is individual It is corresponding with a different predetermined times;And
Include, according to the selected heating mode, the second gas flow for being provided to the heating device being made to exist after step d After persistently supplying the corresponding predetermined time, stop to provide gas to the heating device.
7. heating means as described in claim 1, which is characterized in that further include in step d:
When the temperature of the cookware is more than the third temperature, stop to provide gas to the heating device.
8. heating means as described in claim 1, which is characterized in that further include in step d:
In the state that lasting offer gas gives the heating device, when the temperature of the cookware deteriorates to less than this by the third temperature When one four temperature of third temperature, stop to provide gas to the heating device.
9. heating means as described in claim 1, which is characterized in that judge that the cookware reaches the third temperature in step d Method includes:
The heating slope when cookware is heated is monitored, and when the absolute value of the heating slope is less than a predetermined value, judging should The temperature of cookware reaches the third temperature.
CN201510402128.5A 2015-07-10 2015-07-10 The heating means of cookware Expired - Fee Related CN106322448B (en)

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110623517A (en) * 2018-06-21 2019-12-31 佛山市顺德区美的电热电器制造有限公司 Control method of cooking appliance, cooking appliance and storage medium
CN110623519B (en) * 2018-06-21 2021-06-25 佛山市顺德区美的电热电器制造有限公司 Control method of cooking appliance, cooking appliance and storage medium

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CN1515827A (en) * 1997-01-31 2004-07-28 林内株式会社 Gas stove with rice-cooking functio nand control method
CN1540233A (en) * 2003-04-25 2004-10-27 乐金电子(天津)电器有限公司 Method for measuring weight cooked and microwave oven
CN1888562A (en) * 2005-06-27 2007-01-03 乐金电子(天津)电器有限公司 Electronic microwave oven utilizing electric wave identificating system and automatic cooking method thereof
CN101936549A (en) * 2010-03-15 2011-01-05 谢国华 Gas stove with weighing function and weighing control method thereof
CN203215746U (en) * 2013-03-20 2013-09-25 中山华帝燃具股份有限公司 Intelligent gas stove
CN104207635A (en) * 2013-05-30 2014-12-17 林内株式会社 Heating cooling device
CN204301144U (en) * 2014-12-12 2015-04-29 张海莉 A kind of gas-cooker intelligent controlling device

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Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1515827A (en) * 1997-01-31 2004-07-28 林内株式会社 Gas stove with rice-cooking functio nand control method
US6253761B1 (en) * 1999-03-05 2001-07-03 Timothy Edward Shuler Sensing device for stoves
CN1540233A (en) * 2003-04-25 2004-10-27 乐金电子(天津)电器有限公司 Method for measuring weight cooked and microwave oven
CN1888562A (en) * 2005-06-27 2007-01-03 乐金电子(天津)电器有限公司 Electronic microwave oven utilizing electric wave identificating system and automatic cooking method thereof
CN101936549A (en) * 2010-03-15 2011-01-05 谢国华 Gas stove with weighing function and weighing control method thereof
CN203215746U (en) * 2013-03-20 2013-09-25 中山华帝燃具股份有限公司 Intelligent gas stove
CN104207635A (en) * 2013-05-30 2014-12-17 林内株式会社 Heating cooling device
CN204301144U (en) * 2014-12-12 2015-04-29 张海莉 A kind of gas-cooker intelligent controlling device

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