CN201987261U - Electric heating pan capable of detecting watering status after dry burning - Google Patents
Electric heating pan capable of detecting watering status after dry burning Download PDFInfo
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- CN201987261U CN201987261U CN2010206237380U CN201020623738U CN201987261U CN 201987261 U CN201987261 U CN 201987261U CN 2010206237380 U CN2010206237380 U CN 2010206237380U CN 201020623738 U CN201020623738 U CN 201020623738U CN 201987261 U CN201987261 U CN 201987261U
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Abstract
The utility model discloses an electric heating pan capable of detecting a watering status after dry burning, wherein the electric heating pan comprises a pan body, a cover body and an inner container arranged in the pan body; the pan body is internally equipped with a heating device, a bottom temperature detector for detecting the temperature of the inner container and a control device; the control device comprises a main controller and a counter, a temperature memory, a detection time memory, a decision value memory, a temperature variation memory and a timer which are respectively connected to the main controller; an output end of the bottom temperature detector is connected to an input end of the main controller; and an output end of the main controller is electrically connected to the hating device. The electric heating pan capable of detecting a watering status after dry burning, provided by the utility model has the advantages that the watering action after dry combustion burning is judged according to the change rate of the temperature detected, the purpose of alarming and switching to safe mode can be carried out, the potential safety hazard caused by the dry combustion burning for a long time can be prevented, and the food can be prevented from underdone state caused by immediately switching to the safe mode in case of the detection of dry burning. Furthermore, the method is simple, the detection is accurate, and the method provided by the utility model can be applied to rice cooker, electric stewpot and electric chafing dish and the like products of electric heating pan.
Description
Technical field
The utility model belongs to the transformation of the electric food warmer technology of products such as comprising electric cooker, electric cooking pot, particularly a kind ofly can detect the electric food warmer that adds water state after the dry combustion method.
Background technology
The various computermatic electric food warmer of Chu Shouing generally all is provided with the dry-fire condition detection in the market, if detect dry-fire condition when cooking food, just enters keeping warm mode immediately, prevents that the too high generation of temperature is dangerous.But the user is sometimes when cooking food, and it is on the low side or forget and discharge water that water is put, enters insulation immediately after detecting dry combustion method as electric food warmer, can cause the food of cooking not yet done like this.
In addition, also there is the part electric food warmer to be lower than the uniform temperature value on the market and is judged as the water state that adds after the dry combustion method according to the temperature in the interior pot the bottom of a pan, but the judgement temperature in this determination methods is single temperature spot, and the user adds the temperature of water is different, and the amount that adds water also varies, in addition the environment temperature difference, comprehensive above-mentioned all conditions, temperature spot of single judgement judges to have or not and adds hydrodynamic(al) and do that very science is not easy to erroneous judgement again, influences the quality and the performance of product.
The utility model content
Problem to be solved in the utility model provides and a kind ofly can detect the new type electric heating pot that adds water state after dry combustion method exactly, detects in the special time of this electric food warmer after dry combustion method to add water state and keep operate as normal, guarantees the cooking quality of food.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind ofly can detect the electric food warmer that adds water state after the dry combustion method, comprise a pot body, lid and the inner bag that places in pot body, be provided with heater in the described pot body, be used to detect the end thermal detector of inner bag temperature and the control device of control electric food warmer work, described control device comprises master controller and the counter that is connected with master controller respectively, the temperature memory, detection time memory, the decision content memory, the temperature variation memory, first timer and second timer, the output of end thermal detector is connected with the input of master controller, and the output of master controller is electrically connected with heater.
Further, described control device also comprises the time of fire alarming memory that is electrically connected with master controller.
Further, also be provided with the alarm that is electrically connected with master controller in the described pot body.
The utility model with respect to the beneficial effect of prior art is:
Devices such as the end thermal detector of the utility model employing electric food warmer and control device carry out abstract and modeling with electric food warmer at the temperature curve that adds after the dry combustion method under the water state, rate of change by detected temperatures, whether add the hydrodynamic(al) work after judging dry combustion method, and report to the police and be transformed into safe mode, both avoided the potential safety hazard that causes because of long-time dry combustion method, can not enter safe mode immediately and cause food cooking not yet done again because of detecting dry combustion method, give user's more space and selection, design hommization more, and method is simple, detect accurately, be applicable to electric cooker, electric cooking pot, electric food warmer products such as electric chafing dish.
Description of drawings
Fig. 1 is the structural representation of embodiment electric cooker;
Fig. 2 is the circuit module schematic diagram of embodiment electric cooker;
Dry combustion method did not add the temperature-time relationship curve synoptic diagram of water when Fig. 3 worked for the embodiment electric cooker;
Dry combustion method had the temperature-time relationship curve synoptic diagram that adds water when Fig. 4 worked for the embodiment electric cooker;
Fig. 5 is for judging whether to add the flow chart of water state after the dry combustion method of embodiment electric cooker;
Fig. 6 is the warning stage flow chart after the embodiment electric cooker dry-fire condition.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Present embodiment is that example describes with the electric cooker, as Fig. 1, shown in 2, electric cooker comprises pot body 1, place the inner bag 2 that is used to hold cooking food in pot body 1, capping device lid 3, be located at the heater 4 that in pot body 1 inner bag 2 is heated, corresponding inner bag 2 bottom outside are provided with the end thermal detector 5 that is used to detect the inner bag temperature in the pot body 1, control electric cooker the cook control device 6 and the alarm 16 of work, control device 6 includes master controller 7 and the counter 8 that is connected with master controller 7 respectively, temperature memory 9, time of fire alarming memory 10, detection time, memory 11, decision content memory 12, temperature variation memory 13, first timer 14 and second timer 15, the output of end thermal detector 5 is connected with the input of master controller 7, the output of master controller 7 and heater 4, alarm 16 is electrically connected.
Electric cooker in the course of the work, if in time do not add water after the dry combustion method, heater 4 stops heating, interior pot bottom will form temperature curve shown in Figure 3, interior pot bottom temperature is kept very little fluctuation in upper punch a little substantially to peak; In time add water if having after the electric cooker dry combustion method, interior pot bottom will form temperature curve shown in Figure 4, and interior pot bottom temperature has one and significantly falls suddenly after after water injection.This temperature steep drop trend only adds water and just can form, and belongs to the inherent characteristic of electric cooker and has uniqueness, and the temperature curve that does not add water after the control procedure dry combustion method of electric cooker according to itself is different with it.
According to concrete needs, decision content N can be set at 2,3,4,5 or the like, choosing of decision content N is crucial, electric cooker for the identical style of producing in batches, though structure is identical, but inevitably, in processing, aspects such as assembling, still can there be the difference in the tolerance band between the single individuality, these differences can cause single electric cooker product adding the deviation that temperature curve under the water state has certain limit after the dry combustion method, carry out a large amount of experiments by electric cooker product, and the data that obtain are carried out Mathematical Statistics Analysis, finally obtain the optimum value of N some.In the present embodiment, N is 3, and M is 3 ℃, and △ t was 5 seconds, and ts is 3 minutes.
After confirming that electric cooker is in dry-fire condition, master controller 7 enters warning stage S0, as shown in Figure 6, data t2 in second timer 15 is carried out zero clearing and picks up counting, driving alarm 15 begins to report to the police, remind user's electric cooker this moment dry-fire condition, require the user to add water, and detection judges whether to add water state simultaneously.
Electric cooker judge add water state after the dry combustion method recognition methods as shown in Figure 5, comprising:
S1, preparatory stage: the data n in 7 pairs of counters 8 of master controller is carried out zero clearing, enters the S2 stage.
S2, detection-phase: the data t1 in 7 pairs first timers 14 of master controller carries out zero clearing and picks up counting, and receives the interior pot temperature T that end thermal detector 5 detects
N, and with the data T in the temperature memory 9
LBe updated to pot temperature in this; When first timer 14 time t1 when reaching temperature detection time interval △ t default in the memory 11 detection time, master controller 7 receives the interior pot temperature T that end thermal detectors 5 detect
N, and enter the S3 stage.
S3, decision stage: the interior pot temperature T that master controller 7 detects end thermal detector 5
NWith the T in the temperature memory 9
LCarry out following comparison:
If T
NMore than or equal to T
L, get back to the S2 stage;
If T
NLess than T
L, then with T
LWith T
NDifference △ T and temperature variation memory 13 in default temperature gap M carry out following comparison:
If △ T less than M, gets back to the S2 stage;
If △ T is more than or equal to M, then the data n in 7 pairs of counters 8 of master controller adds 1 renewal processing, and default decision content N compares in data n after will upgrading and the decision content memory 12:
If n less than decision content N, then gets back to the S2 stage and restarts;
If n reaches decision content N, master controller 7 is judged electric cooker at this moment for adding water state, and the S3 stage finishes.
Master controller 7 judges that electric cooker is after having added water state after the dry combustion method, continues the course of work that keeps dry-fire condition preceding; If master controller 7 judges that electric cooker is not add water state after the dry combustion method, then with second timer 15 time t2 and time of fire alarming memory 10 in default warning binding hours ts compare, if t2 is more than or equal to ts, master controller 7 finishes warning stage S0, enters keeping warm mode; If t2 is less than ts, master controller 7 adds the detection of water state again.The electric cooker that designs like this has more intellectuality, hommization.
The present embodiment electric cooker is at warning stage, alarm 16 is an acoustical generator, carry out the alarm user by the sound means and add water, in the pre-set time, if detecting, master controller 7 do not add water, then continue to report to the police, if the time arrives, also do not detect the user and add water, the warning of electric cooker is disengaged, and stops the prompting of sound.
Claims (3)
1. one kind can be detected the electric food warmer that adds water state after the dry combustion method, comprise a pot body (1), lid (3) and place inner bag (2) in pot body (1), be provided with heater (4) in the described pot body (1), be used to detect the end thermal detector (5) of inner bag temperature and the control device (6) of control electric food warmer work, it is characterized in that: described control device (6) comprises master controller (7) and the counter (8) that is connected with master controller (7) respectively, temperature memory (9), memory detection time (11), decision content memory (12), temperature variation memory (13), first timer (14) and second timer (15), the output of end thermal detector (5) is connected with the input of master controller (7), and the output of master controller (7) is electrically connected with heater (4).
2. electric food warmer according to claim 1 is characterized in that: described control device (6) also comprises the time of fire alarming memory (10) that is electrically connected with master controller (7).
3. electric food warmer according to claim 2 is characterized in that: also be provided with the alarm (16) that is electrically connected with master controller (7) in the described pot body (1).
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CN2010206237380U CN201987261U (en) | 2010-11-25 | 2010-11-25 | Electric heating pan capable of detecting watering status after dry burning |
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CN2010206237380U CN201987261U (en) | 2010-11-25 | 2010-11-25 | Electric heating pan capable of detecting watering status after dry burning |
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CN201987261U true CN201987261U (en) | 2011-09-28 |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015149362A1 (en) * | 2014-04-04 | 2015-10-08 | 史伯梅 | Electric pressure cooker |
CN105266566A (en) * | 2015-11-23 | 2016-01-27 | 珠海格力电器股份有限公司 | Cooker, and control method and control apparatus thereof |
CN105595789A (en) * | 2014-11-24 | 2016-05-25 | 佛山市顺德区美的电热电器制造有限公司 | Method and device for detecting whether water is added as well as cooking utensil and cooking control method |
CN106618154A (en) * | 2016-12-07 | 2017-05-10 | 宁波方太厨具有限公司 | Dry heating protection implementation method for cooking equipment |
CN107157317A (en) * | 2016-03-07 | 2017-09-15 | 广东美的生活电器制造有限公司 | A kind of liquid heating, electric hot water bottle and its anti-dry control method |
CN107562091A (en) * | 2016-06-30 | 2018-01-09 | 佛山市顺德区美的电热电器制造有限公司 | Charging recognition methods, device in electric cooking pot and its cooking process |
CN108535430A (en) * | 2018-06-06 | 2018-09-14 | 深圳酷平方科技有限公司顺德分公司 | A kind of curing detection module |
CN109793421A (en) * | 2017-11-16 | 2019-05-24 | 佛山市顺德区美的电热电器制造有限公司 | Cooking control method and culinary art control device, storage medium and pressure cooking appliance |
-
2010
- 2010-11-25 CN CN2010206237380U patent/CN201987261U/en not_active Expired - Fee Related
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015149362A1 (en) * | 2014-04-04 | 2015-10-08 | 史伯梅 | Electric pressure cooker |
CN105595789A (en) * | 2014-11-24 | 2016-05-25 | 佛山市顺德区美的电热电器制造有限公司 | Method and device for detecting whether water is added as well as cooking utensil and cooking control method |
CN105595789B (en) * | 2014-11-24 | 2017-11-03 | 佛山市顺德区美的电热电器制造有限公司 | Detect whether method and apparatus and cooking apparatus and the cooking control method added water |
CN105266566A (en) * | 2015-11-23 | 2016-01-27 | 珠海格力电器股份有限公司 | Cooker, and control method and control apparatus thereof |
CN105266566B (en) * | 2015-11-23 | 2017-04-19 | 珠海格力电器股份有限公司 | Cooker, and control method and control apparatus thereof |
CN107157317A (en) * | 2016-03-07 | 2017-09-15 | 广东美的生活电器制造有限公司 | A kind of liquid heating, electric hot water bottle and its anti-dry control method |
CN107562091A (en) * | 2016-06-30 | 2018-01-09 | 佛山市顺德区美的电热电器制造有限公司 | Charging recognition methods, device in electric cooking pot and its cooking process |
CN106618154A (en) * | 2016-12-07 | 2017-05-10 | 宁波方太厨具有限公司 | Dry heating protection implementation method for cooking equipment |
CN106618154B (en) * | 2016-12-07 | 2018-10-02 | 宁波方太厨具有限公司 | A kind of dry combustion method the protection implement method of cooking equipment |
CN109793421A (en) * | 2017-11-16 | 2019-05-24 | 佛山市顺德区美的电热电器制造有限公司 | Cooking control method and culinary art control device, storage medium and pressure cooking appliance |
CN109793421B (en) * | 2017-11-16 | 2022-04-01 | 佛山市顺德区美的电热电器制造有限公司 | Cooking control method and cooking control device, storage medium and pressure cooking appliance |
CN108535430A (en) * | 2018-06-06 | 2018-09-14 | 深圳酷平方科技有限公司顺德分公司 | A kind of curing detection module |
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Granted publication date: 20110928 Termination date: 20131125 |