CN102805551B - Anti-overflow moisture-preserving electric cooker and cooking control method thereof - Google Patents
Anti-overflow moisture-preserving electric cooker and cooking control method thereof Download PDFInfo
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- CN102805551B CN102805551B CN201210159344.8A CN201210159344A CN102805551B CN 102805551 B CN102805551 B CN 102805551B CN 201210159344 A CN201210159344 A CN 201210159344A CN 102805551 B CN102805551 B CN 102805551B
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- 241000209094 Oryza Species 0.000 claims description 17
- 235000007164 Oryza sativa Nutrition 0.000 claims description 17
- 235000009566 rice Nutrition 0.000 claims description 17
- 238000009835 boiling Methods 0.000 claims description 16
- 230000003020 moisturizing effect Effects 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 8
- 238000009790 rate-determining step (RDS) Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
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Abstract
The invention discloses an anti-overflow moisture-preserving electric cooker and a cooking control method thereof, and relates to the technical field of kitchen cooking equipment. By the anti-overflow moisture-preserving electric cooker, the technical problem that overflow is difficult to avoid in the prior art. The anti-overflow moisture-preserving electric cooker comprises a cooker body and a cooker cover, wherein a steam valve with vent holes is arranged on the cooker cover; accommodating space opposite to the vent holes is arranged in the steam valve; a valve body is accommodated in the accommodating space and encloses part of areas of the vent holes under the action of the gravity of the valve body and is away from the vent holes under the pushing of air flow which is exhausted from the vent holes; and a sensor which is connected to a control circuit is arranged on the cooker cover and sends a detection signal to the control circuit under the trigger action of the valve body. The anti-overflow moisture-preserving electric cooker is mainly used for various electric cookers such as ordinary electric cookers, electromagnetic heating electric cookers and the like.
Description
Technical field
The present invention relates to kitchen cooking equipment technical field, particularly relate to the anti-overflow moisturizing electric cooker in kitchen cooking equipment and cooking control method thereof.
Background technology
The electric cookers such as existing electric cooker, electric cooking pot generally can install exhaust steam valve on pot cover, the steam produced in heating process is discharged, better simply exhaust steam valve scheme is on pot cover, arrange a through hole identical with the external world, and the steam in pot is discharged by this through hole.Relevant exhaust steam valve structure has been designed in prior art, as: at exhaust steam valve place design fan structure, can stave by the bubble in the steam of exhaust steam valve, make vapor bubbles to become liquid, to be back in pot.
Realizing and using in the process of above-mentioned exhaust steam valve, inventor finds that in prior art, at least there are the following problems: after having steam in existing electric rice cooker heated to pot, steam can be discharged at once from exhaust steam valve, by keeping certain humidity in pot, can not be unfavorable for cooking food; In addition, if user forgets installation exhaust steam valve, existing electric cooker still can heat, and causes certain energy dissipation.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art and provides a kind of anti-overflow moisturizing electric cooker and cooking control method thereof, can prevent soup spill in cooking process.
For achieving the above object, the present invention adopts following technical scheme:
A kind of anti-overflow moisturizing electric cooker, comprises pot body and pot cover, described pot cover is provided with the steam valve with steam vent; The position corresponding to described steam vent in described steam valve is provided with accommodation space, valve body is equipped with in described accommodation space, described valve body seals described vent section region under self gravitation effect, and away from described steam vent under the air propels of discharging from steam vent;
Described pot cover is provided with the sensor being connected to control circuit, and detection signal is sent to described control circuit by described sensor under valve body trigger action.
Described sensor is mechanical actuating type sensor, and described valve body triggers described mechanical actuating type sensor under gravity; Or described valve body is magnetic valve body, described sensor is magneto-dependent sensor.
Described magnetic valve body is tool magnetic column valve body or the magnetic ellipse ball valve of tool or the magnetic ball valve of tool.
Described steam valve comprises bonnet, and the bottom flange of involutory assembling;
Described bottom flange inside is provided with groove, and described steam vent is opened in described groove; Described valve body is located in the accommodation space of described groove formation; Or
Described bottom flange comprises cover plate and valve holder, is provided with perforation bottom described cover plate, and described valve holder is located at described perforation place; Described valve holder is provided with described steam vent, and described valve body is located in the accommodation space of described valve holder inside.
Described accommodation space diapire and described valve body are respectively equipped with the guide frame matched, and described valve body moves along guide frame.
Described pot cover is provided with the Anti-stop cover with air-vent covering described steam vent; Or described pot cover is provided with the anti-blocking baffle plate covering described vent section exhaust gas region.
A cooking control method for claim electric cooker, described method comprises:
Detecting step A: in first scheduled time of control circuit after starting electric cooker cooking function, if described sensor detects that described valve body is away from described steam vent, then stop heating.
Described steps A comprises: control circuit performs following steps in first scheduled time after starting electric cooker cooking function:
A1) current kettle temperature is detected;
A2) when kettle temperature is less than protection temperature, if described sensor detects that described valve body is away from described steam vent, then heating is stopped;
A3) kettle temperature be not less than protection temperature time, then stop heating, and if stopping heating the 3rd scheduled time after sensor detect that described valve body is away from described steam vent, then maintain stop heated condition.
A cooking control method for electric cooker, described method comprises:
Anti-overflow rate-determining steps B: if select that there is Anti-spill culinary art, after first scheduled time after starting electric cooker cooking function, if described sensor detects that described valve body is away from described steam vent, then control circuit carries out the culinary art of anti-overflow pattern or stops heating.
Described method also comprises:
Rice cooking step C: if select rice culinary art, control circuit, when described sensor does not detect described valve body away from described steam vent, is cooked according to cooking rice pattern.
Described step B comprises: if select to have Anti-spill culinary art, control circuit performs following steps after described first scheduled time after starting electric cooker cooking function:
B1) current kettle temperature is detected;
B2) when the temperature detected is greater than spilling temperature, if described sensor detects that described valve body is away from described steam vent, then carry out the culinary art of anti-overflow pattern;
B3) when the temperature detected is not more than spilling temperature, if described sensor detects that described valve body is away from described steam vent, then heating is stopped.
The culinary art that described control circuit carries out anti-overflow pattern comprises:
1) when sensor detects described valve body away from described steam vent, heating is stopped;
2) when sensor detects described valve body near described steam vent, after time delay second scheduled time, heating is started.
State in control circuit of electric rice cooker the corresponding relation prestoring at least two boiling temperatures Yu add ratio of specific heat;
The culinary art of described anti-overflow pattern also comprises: when sensor detects described valve body away from described steam vent, searches target according to the temperature detected and adds ratio of specific heat in described boiling temperature and heating are than corresponding relation;
Startup in described anti-overflow pattern culinary art is heated to be and adds ratio of specific heat according to described target and heat.
Described method also comprises:
Uncap and remind step D: after completing culinary art, if described sensor detects that described valve body reaches scheduled duration continuously near described steam vent, control circuit then sends the prompting allowing to uncap; Otherwise control circuit sends the prompting not allowing to uncap.
Anti-overflow moisturizing electric cooker provided by the invention and cooking control method thereof, owing to being provided with valve body at steam vent place, a part of steam can being hindered to discharge electric cooker by this valve body, make the humidity that electric cooker can remain certain, play the effect of moisturizing, be conducive to cooking food; And after adopting the embodiment of the present invention, if the quantity of steam in pot is comparatively large, can valve body be promoted, make steam vent can steam discharge normally, the normal work of electric cooker can not be affected.
In addition, adopt the electric cooker that the embodiment of the present invention provides, by in steam valve, valve body is set, this valve body is detected by sensor, can judge to show that this electric cooker may be in following state: fluidized state in neglected loading steam valve state or uncapped state or pot, to carry out the control of electric cooker, as stopped heating, electric cooker can better, more safely be worked.
Adopt the cooking control method of electric cooker in the embodiment of the present invention, condition adjudgement can be carried out by the state detecting steam valve, can judge whether be in normal occlusion lid state and whether correctly steam valve be installed at the initial stage just starting to cook, can anti-overflow culinary art be carried out after culinary art a period of time, make the Anti-spill of electric cooker more reliable.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the electric cooker partial schematic diagram that the embodiment of the present invention is provided with steam valve;
Fig. 2 is steam valve lower cover direction schematic perspective view in the embodiment of the present invention one;
Fig. 3 is steam valve upper cover direction schematic perspective view in the embodiment of the present invention one;
Fig. 4 is the cover plate side schematic diagram of the bottom flange of steam valve in the embodiment of the present invention one;
Fig. 5 is the cover plate opposite side schematic diagram of the bottom flange of steam valve in the embodiment of the present invention one;
Fig. 6 is the valve holder structure schematic diagram of steam valve in the embodiment of the present invention one;
Fig. 7 does not set up defences in the embodiment of the present invention against stopping up the pot cover sectional view of plate;
Fig. 8 is electronic type control loop schematic diagram in the embodiment of the present invention one;
Fig. 9 is mechanical type control loop schematic diagram in the embodiment of the present invention one;
Figure 10 is the steam valve control flow chart of the cooking control method of electric cooker in the embodiment of the present invention two;
Figure 11 is the control flow chart of cooking the incipient stage in the embodiment of the present invention two;
Figure 12 is the control flow chart in cooking process stage in the embodiment of the present invention two;
Figure 13 is the flow chart of anti-overflow culinary art in the embodiment of the present invention two;
Figure 14 is the control flow chart of cooking ending phase in the embodiment of the present invention two.
Reference numeral:
10 bonnet, 20 bottom flange 40 buckle structures
21 steam vent 22 accommodation space 50 hook structures
23 plate 24 cover plate 60 magneto-dependent sensors
25 valve holders 26 are bored a hole 70 single-chip microcomputers
The anti-blocking baffle plate of 27 guide-track groove 30 valve body 28
Detailed description of the invention
The embodiment of the present invention provides a kind of anti-overflow moisturizing electric cooker, and as shown in Figure 1, this electric cooker comprises pot cover 1 and pot body 2, and pot cover is provided with steam valve 3, can keep certain humidity in electric cooker; In the embodiment of the present invention, steam valve is provided with the steam vent 21 corresponding with the pore on pot cover; The position corresponding to described steam vent 21 in described steam valve is provided with accommodation space 22, and is provided with valve body 30 in accommodation space 22, and this valve body 30 seals the valve body 30 of described steam vent 21 subregion under self gravitation effect; When steam in pot is discharged by this steam vent 21, if vapor flow speed is comparatively large, then this valve body 30 can, by the air propels passed through from described steam vent 21, make valve body 30 away from exhaust hole 21.Electric cooker is controlled in order to the state of steam valve can be utilized, the embodiment of the present invention is provided with the sensor being connected to control circuit on pot cover 1, detection signal is sent to described control circuit by described sensor under valve body trigger action, and in Fig. 7, magneto-dependent sensor 60 is exactly a kind of implementation of sensor.
After the electric cooker adopting the embodiment of the present invention to provide, valve body is detected by sensor, can judge to show that this electric cooker may be in following state: fluidized state in neglected loading steam valve state or uncapped state or pot, to carry out the control of electric cooker, as stopped heating, electric cooker can better, more safely be worked.
Electric cooker provided by the invention and cooking control method thereof, owing to arranging sexual valve body at steam vent place, a part of steam can be hindered to discharge electric cooker by this valve body, make the humidity that electric cooker can remain certain, play the effect of moisturizing, be conducive to cooking food; And after adopting the embodiment of the present invention, if the quantity of steam in pot is comparatively large, can valve body be promoted, make steam vent can steam discharge normally, the normal work of electric cooker can not be affected.
In the embodiment of the present invention, the specific implementation of steam valve, valve body, sensor can adopt multiple different schemes, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one:
The embodiment of the present invention provides a kind of electric cooker, this electric cooker comprises pot cover 1 and pot body 2, and pot cover 1 is provided with steam valve 3, certain humidity can be kept in electric cooker, as shown in Figures 2 and 3, the steam valve 3 that the embodiment of the present invention provides comprises bonnet, 10 and the bottom flange 20 of involutory assembling, and is provided with steam vent 21 on bottom flange 20; In order to certain humidity can be kept in pot, as shown in Figure 2, the position that embodiment of the present invention exhaust steam valve corresponds to described steam vent 21 in described bottom flange 20 is provided with accommodation space (not shown in Fig. 2), this accommodation space in fig. 2 by the plate 23 in figure around forming, and in accommodation space, be equipped with the valve body 30 (shown in Figure 1) blocking described steam vent 21 subregion, after steam vent 21 subregion is blocked, steam in pot will reduce the velocity of discharge, thus keep having certain humidity in pot.In addition, the valve body 30 in the embodiment of the present invention by the air propels passed through from described steam vent 21, valve body 30 can be pushed open after boiling in pot, can carry out very fast steam discharge.
Involutory structure in the embodiment of the present invention between bonnet, 10 and bottom flange 20 can adopt but be not limited to buckle structure 40 as shown in Figure 2 and hook structure 50.
After the steam valve adopting the embodiment of the present invention to provide, make can maintain certain humidity in electric cooker, play the effect of moisturizing, be conducive to cooking food; And after adopting the embodiment of the present invention, if the quantity of steam in pot is comparatively large, valve body 30 can be promoted, make steam vent can steam discharge normally, the normal work of electric cooker can not be affected.
The embodiment of the present invention also on pot cover the position of corresponding described valve body be provided with the sensor being connected to control circuit, valve body can trigger sensor, and after valve body triggers described sensor, detection signal is sent to described control circuit by sensor, controls so that control circuit carries out culinary art.Carry out detecting steam valve to coordinate, the valve body in the embodiment of the present invention and sensor can adopt but be not limited to following scheme:
The first, sensor is mechanical actuating type sensor, described valve body touches described mechanical actuating type sensor under gravity, described mechanical actuating type sensor can be triggered after valve body touches detection signal is sent to described control circuit, the concrete mounting means of mechanical actuating type sensor and valve body is not shown in the accompanying drawing of the embodiment of the present invention, but those skilled in the art can design as required.
The second, as shown in Figure 1, valve body 30 in the present embodiment can adopt the magnetic valve body of tool, or described valve body is magnetic valve body, described sensor is magneto-dependent sensor 60, and the detection signal of the described magnetic valve body detected is sent to described control circuit by described magneto-dependent sensor 60; During concrete utilization, magneto-dependent sensor can adopt but be not limited to magnetoresistive transducer, Hall element, tongue tube, door status switch or microswitch etc.
For the ease of valve body described in Steam Actuation, need valve body 30 to be designed to the shape being easy to move, specifically the embodiment of the present invention can by valve design for but be not limited to following scheme: be tool magnetic column valve body or the magnetic ellipse ball valve of tool or the magnetic ball valve of tool by valve design.
In the embodiment of the present invention, steam vent can adopt but be not limited to following scheme: as shown in Figure 4, Figure 5 and Figure 6, described bottom flange comprises cover plate 24 and valve holder 25, wherein Fig. 4 and Fig. 5 represents cover plate 24 structure, Fig. 6 represents valve holder structure 25, be provided with perforation 26 bottom described cover plate 24, and described valve holder 25 is located at described perforation 26 place; Described valve holder 25 is provided with described steam vent 21, and described valve body 30 is placed in the accommodation space 22 of described valve holder 25 inside.When reality uses, above-mentioned cover plate 24 and valve holder 25 can adopt but be not limited to ultrasonic bonding mode and be fixed together.
Except the above-mentioned mode arranging accommodation space and steam vent, valve holder and cover plate can also be made of one by the embodiment of the present invention, and specific implementation can be provided with groove in bottom flange inside, and steam vent is opened in described groove; Above-mentioned valve body is placed in the accommodation space of described groove formation, during concrete utilization, can also two baffle plates be set in described groove, to limit the space of valve body, ensure that the side that valve body is designing in advance moves upward, can also a cover plate be set on described baffle plate, to ensure that the valve body when reversing pot cover in groove can not drop.When valve body is positioned at the side at steam vent place, will the blocking to steam in pot be formed, thus play the effect of moisturizing, will velocity of exhaust be accelerated after valve body is pushed open by steam.
No matter adopt which kind of mode to arrange accommodation space and steam vent, for the ease of the motion of valve body, the embodiment of the present invention all can be respectively equipped with the guide frame matched on the diapire of accommodation space with on described valve body, the air-flow passed through from steam vent will promote described valve body, and valve body is moved along described guide frame.Concrete guide frame can adopt but be not limited to following structure: as shown in Figure 6, accommodation space 22 diapire arranges rail groove 27, valve body 30 is arranged and the convex tendon matched with rail groove 27, during Steam Actuation valve body, moving of being valve body along rail groove is provided guiding by the convex tendon on valve body 30; In order to ensure that valve body can continue to block steam vent 21 when steam power deficiency, one end that described guide-track groove 27 is positioned at described steam vent 21 by the embodiment of the present invention is designed to the other end lower than guide-track groove 27, make after steam is discharged, valve body 30 can rely on self gravitation to get back to the position of steam vent, continues to play moisture-keeping function.
Adopt after the embodiment of the present invention, valve body can be detected by sensor, specifically can be distinguished the following two kinds state of valve body by the difference of sensor signal: valve body away from steam vent state or valve body near steam vent state; The embodiment of the present invention concrete detection control process can be: when the detection signal that described sensor detects indicates described valve body away from described steam vent, then may occur that neglected loading steam valve or pot cover are opened or boiling in pot, so control circuit can determine according to the duty before electric cooker that described electric cooker is fluidized state in neglected loading steam valve state or uncapped state or pot, to control described electric cooker further.Generally speaking, the embodiment of the present invention, after detecting that above-mentioned state occurs, can control heater circuit and stop heating, or control electric cooker carries out other actions, does not repeat one by one herein.
When the electric food warmer culinary art using the embodiment of the present invention to provide is cooked congee, because congee is comparatively sticky, in order to ensure that valve body can not be blocked by dope, the embodiment of the present invention can be provided with the Anti-stop cover with air-vent covering described steam vent on pot cover; Also the anti-blocking baffle plate 28 covering described vent section exhaust gas region can be set on pot cover according to scheme shown in Fig. 1.Certainly, those skilled in the art can remove this anti-blocking baffle plate or Anti-stop cover as required, and adopt scheme shown in Fig. 7.
After the electric food warmer adopting the embodiment of the present invention to provide, only having to install steam valve and cover pot cover just to make door status switch or microswitch close, to start culinary art, in cooking process, along with pot inner pressure increases, promotion is had magnetic valve body by steam, and when reaching certain displacement amount, door status switch or microswitch will be switched to off-state by by closure state.The steam valve checkout gear adopting the embodiment of the present invention to provide, can utilize its signal detected to carry out the power adjusting of heat-generating system, thus realizes insulation, Anti-spill.
Concrete magneto-dependent sensor 60 can use electronic type control loop, also can use mechanical type control loop, introduces the principle carrying out after magneto-dependent sensor detects signal controlling below respectively in detail:
The first, when adopting electronic type control loop, the schematic diagram of control loop as shown in Figure 8.
Steam valve detects and detection of uncapping: in fig. 8, if do not install steam valve or pot cover is in open mode, valve body 30 in steam valve moves along the OFF direction shown in arrow in Fig. 8, door status switch K1 is in OFF state, single-chip microcomputer 70 detects high level signal, and under this state, machine does not work; When installation steam valve and when covering pot cover, door status switch K1 is in ON state, microprocessor detect is to low level signal, and under this state, machine normally works.
Boiling detection: when adopting the scheme of Fig. 8 to cook, as steam valve is in place, single-chip microcomputer detects low level signal at the beginning; When single-chip microcomputer detects high level signal first, illustrate that in pot, steam is more, should fluidized state be in, can heating be suspended, so can be controlled by the signal detected to stop heating.
The second, when adopting mechanical type control loop, the schematic diagram of control loop as shown in Figure 9.
Steam valve detects and detection of uncapping: in fig .9, if do not install steam valve or pot cover is in open mode, the valve body 30 in steam valve moves along the OFF direction shown in arrow in Fig. 9, and microswitch K2 disconnects, and under this state, machine does not work; When installation steam valve and when covering pot cover, microswitch K2 closes, and under this state, machine normally works.
Boiling detection: when adopting the scheme of Fig. 9 to cook, as steam valve is in place, microswitch K2 closes, and can carry out normal heating, in pot, steam is more, is promoted by the valve body in steam valve, microswitch K2 will be made to disconnect, illustrate and seethe with excitement.
Embodiment two:
The embodiment of the present invention provides a kind of cooking control method of electric cooker, this electric cooker adopts the structure provided in embodiment one, can describe in reference example one, repeat no more herein, the cooking control method of electric cooker comprises detecting step A: in first scheduled time after starting electric cooker cooking function, if described sensor detects that described valve body is away from described steam vent, then stop heating; Because the carrying out after starting detects, general valve body can not because of the promotion of steam away from steam vent, does not cover put in place, so need to stop heating so can be defined as neglected loading steam valve or pot cover; Certainly now otherwise user can also be pointed out, as carried out the state etc. of alarm or display stopping heating.
Certainly, in order to prevent occurring pot phenomenon of overflowing in cooking process, embodiment of the present invention electric cooker cooking process comprises anti-overflow rate-determining steps B: if select to have Anti-spill culinary art, such as: cooking function of cooking congee, Baoshang cooking function etc., after first scheduled time after starting electric cooker cooking function, if described sensor detects that described valve body is away from described steam vent, then carry out the culinary art of anti-overflow pattern or stop heating; Owing to detecting that valve body is away from described steam vent again after heating a period of time, represent that magnetic valve body is the promotion receiving steam, so can determine now excessive pot to occur, in order to anti-Spill stopping pan needs the culinary art entering anti-overflow pattern, the culinary art of concrete anti-overflow pattern can adopt but be not limited to the scheme of subsequent descriptions.
Above-mentioned detecting step A and anti-overflow rate-determining steps B is the control mode of two time periods, only can adopt above-mentioned two steps one of them during concrete utilization.The electric cooker provided to make the embodiment of the present invention can be applicable to more function, and the cooking control method of the embodiment of the present invention can also comprise the steps:
Rice cooking step C: if select rice cooking function, because rice culinary art there will not be excessive pot phenomenon, so need adjustment culinary art pattern, no longer perform above-mentioned anti-overflow rate-determining steps B, but when described valve body not detected away from described steam vent in detecting step A, can cook according to cooking rice pattern.Any one scheme during the culinary art of concrete rice pattern can adopt, this belongs to comparatively conventional program, repeats no more herein.
Regardless of the concrete culinary art pattern of electric cooker in the embodiment of the present invention, after completing culinary art, in the embodiment of the present invention, electric cooker cooking control method can also increase following steps:
Uncap and remind step D: after completing culinary art, if described sensor detects that described valve body reaches scheduled duration continuously near described steam vent, to represent in pot that quantity of steam continues scheduled duration relatively less, now open pot cover comparatively safe, so send the prompting allowing to uncap; Otherwise represent that in pot, quantity of steam is also many, send the prompting not allowing to uncap, the scheduled duration in general in the embodiment of the present invention can adopt 0.5min to 10min not, specifically determines according to product demand.
Allow in the embodiment of the present invention uncap prompting and do not allow the combination of pointing out and all can adopt sound prompting mode or display alarm mode or two kinds of alerting patterns of uncapping.
Can by sensor setting in described steam vent position in the embodiment of the present invention; Thus, as long as detect that valve body is away from described sensor, just can show that described sensor detects that described valve body is away from described steam vent.Magneto-dependent sensor in the embodiment of the present invention can select door status switch, specifically can implementation in reference diagram 8 and Fig. 9, in such cases, detect that the signal that door status switch disconnects just can represent that magnetic valve body is away from magneto-dependent sensor, namely valve body is away from steam vent.
Above-mentioned anti-overflow rate-determining steps B specific implementation can adopt following scheme: if select to have Anti-spill culinary art, perform following steps after described first scheduled time after starting electric cooker cooking function:
B1) current kettle temperature is detected;
B2) when the temperature detected is greater than spilling temperature, if described sensor detects that described valve body is away from described steam vent, then carry out the culinary art of anti-overflow pattern;
B3) when the temperature detected is not more than spilling temperature, if described sensor detects that described valve body is away from described steam vent, then heating is stopped.
Generally, kettle temperature was difficult to reach spilling temperature within 5 minutes, and in order to prevent error detection, described first scheduled time is generally set as 0 to 5 minute by the embodiment of the present invention, and comparatively preferred time is as 5s, 10s, 20s, 30s etc.
In order to judge more accurately, need to ensure the phenomenon starting to there will not be in first scheduled time of cooking Steam Actuation magnetic valve body, so need detected temperatures in the detecting step A of the embodiment of the present invention, need when temperature is higher to cool a period of time, occur, so the detecting step A in the embodiment of the present invention specifically can adopt following scheme to get rid of Steam Actuation valve body situation: in first scheduled time after starting electric cooker cooking function, perform following steps:
A1) current kettle temperature is detected;
A2) when kettle temperature is less than protection temperature, if described sensor detects that described valve body is away from described steam vent, then heating is stopped;
A3) kettle temperature be not less than protection temperature time, then stop heating, and if stopping heating the 3rd scheduled time after sensor detect that described valve body is away from described steam vent, then maintain stop heated condition.
Protection temperature in the embodiment of the present invention generally selects 70 DEG C to 85 DEG C, and wherein 80 DEG C is preferred version, and protects temperature General Requirements to be less than spilling temperature, overflows temperature preferably 85 DEG C in the embodiment of the present invention.
In order to be illustrated more clearly in the control method in the embodiment of the present invention, below in conjunction with control flow chart, and adopt magneto-dependent sensor and magnetic valve body to be described for first scheduled time for 10s, as described in Figure 10, the cooking control method that the embodiment of the present invention provides is after entering the control flow of steam valve, three kinds of working stages can be divided into: culinary art incipient stage, cooking process stage, culinary art ending phase, and the equal corresponding a kind of processing mode of corresponding each working stage, can jump out this flow process after completing the process in this stage.
Wherein cooking the incipient stage refers within culinary art beginning first scheduled time, and namely before culinary art starts in 10s, its handling process is concrete as shown in figure 11, and described method comprises as follows:
1101, user powers on to electric cooker, starts cooking function and starts timing, and electric cooker can start the measuring ability of steam valve automatically simultaneously, also can be manually booted the measuring ability of steam valve by button by user.
1102, judge whether magneto-dependent sensor detects that magnetic valve body is away from this magneto-dependent sensor, when adopting door status switch open in usual as magneto-dependent sensor, if detect that door status switch is in closure state, then represent that magnetic valve body is in the state near this door status switch, performs 1103; If detect that door status switch is in off-state, represent that magnetic valve body is in the state away from this door status switch, perform 1105.
1103, judge whether timing reaches the first scheduled time 10s, if timing does not reach 10s, then return execution 1102; If timing reaches 10s, then perform 1105.
1104, owing to carrying out in above-mentioned detection upon actuation 10s, general magnetic valve body can not because of the promotion of steam away from magneto-dependent sensor, do not cover put in place so neglected loading steam valve or pot cover can be defined as, so need to stop heating, and terminate culinary art flow process.Certainly otherwise can also point out user in this process, as carried out the state etc. of alarm or display stopping heating, the embodiment of the present invention can also perform 1105 after execution 1104.
1105, the handling process of culinary art incipient stage is jumped out.
In order to prevent the appearance of erroneous judgement, if detect that magnetic valve body is in the state away from this door status switch, first can not perform 1104, and performing following 1104-1 process:
1104-1, the temperature detected in pot, generally carry out temperature detection by the thermal detector at top, when the temperature detected is less than protection temperature, represents now for just starting heating soon, then can perform 1104; If detect that temperature is greater than protection temperature, then the food added at the beginning that expresses possibility is high temperature food, as heating boiling water heats etc., in order to prevent abnormal conditions from occurring, needs to perform 1104-2.
Protection temperature in the embodiment of the present invention can be selected but be not limited to 75 DEG C to 85 DEG C.
1104-2, stop performing 1104 processes after heating the 3rd scheduled time, and need to start heating, in the present embodiment, the 3rd scheduled time needed shorter than first scheduled time, can stop heating 5s to 1 minute according to the selection of first scheduled time.When first scheduled time was 10s, can select to stop heating 6s; Can select when first scheduled time was 1 minute to stop heating 40s or 45s etc.
In the embodiment of the present invention cooking process stage refer to culinary art beginning first scheduled time after complete this process to culinary art, the process of this process is mainly for there will be the possible cooking function of excessive pot, the culinary art pattern that only have selected user the pot that may overflow just needs to perform this flow process, such as: user have selected the pattern of cooking congee, Baoshang pattern etc., just perform the process in cooking process stage, if user have selected rice pattern, then need to cook according to rice cooking process.As shown in figure 12, the control method in concrete cooking process stage comprises:
1201, judge whether the pattern that have selected the pot that may overflow such as the pattern of cooking congee, Baoshang pattern, if so, then perform 1202; If have selected rice pattern or other non-overflow pan patterns, then perform 1206.
1202, judge current time be whether in the 10s starting cooking function within, if within 10s, then perform 1206; If beyond 10s, then perform 1203.
1203, detect the temperature in pot, generally carry out temperature detection by the thermal detector at top, when the temperature detected is greater than spilling temperature, under representing this temperature, steam power is larger, may overflow, then perform 1204; If the temperature detected is not more than spilling temperature, under representing that spilling possibility at this temperature very, so need the judgement carrying out steam valve neglected loading, then return execution 1203.
Spilling temperature in the embodiment of the present invention can select 85 DEG C to 90 DEG C, such as 85 DEG C, 86 DEG C, 87 DEG C, 88 DEG C, 89 DEG C, 90 DEG C etc., general selection 85 DEG C is comparatively reasonable.
1204, judge whether magneto-dependent sensor detects that magnetic valve body is away from this magneto-dependent sensor, when adopting door status switch open in usual as magneto-dependent sensor, if detect that door status switch is in closure state, then represent that magnetic valve body is in the state near this door status switch, then continue execution 1204; If detect that door status switch is in off-state, represent that magnetic valve body is in the state away from this door status switch, perform 1205.
1205, owing to carrying out in above-mentioned detection upon actuation 10s, magnetic valve body principle magneto-dependent sensor is not detected within 10s, so can determine not occur that steam valve neglected loading or pot cover are cover situation about putting in place, in this case again detect that magnetic valve body is away from magneto-dependent sensor, then can represent magnetic valve body be steam promotion and away from magneto-dependent sensor, the possibility that excessive pot occurs in the case is larger, in order to anti-Spill stopping pan, the present invention needs the culinary art entering anti-overflow pattern in the case, concrete culinary art flow process refers to subsequent descriptions.
1206, program is jumped out.
Below in conjunction with accompanying drawing, anti-overflow culinary art is described, specifically as shown in figure 13, anti-overflow culinary art comprises following process:
1301, due to detect may there is excessive pot phenomenon after just enter anti-overflow culinary art, so need first to stop heating.
1302, in order to the height above sea level at place when this electric cooker uses can be distinguished, the embodiment of the present invention can also detect kettle temperature, this temperature detected generally can embody the boiling point of local water preferably, thus infer current height above sea level, to carry out difference for Different Altitude Regions to control in subsequent control process, certainly, if use at fixing height above sea level, then this step can be omitted.
1303, judge whether magneto-dependent sensor detects that magnetic valve body is away from this magneto-dependent sensor, concrete detection mode can adopt above-mentioned scheme employed in figure 11, if detect that magnetic valve body is away from this magneto-dependent sensor, then continue the state keeping stopping heating, and re-execute 1303 processes; If detect that magnetic valve body is near this magneto-dependent sensor, represent that steam reduces, kettle temperature decreases, and there will not be excessive pot phenomenon, then can perform 1304.
1304, second scheduled time of time delay, then restart heating, in the embodiment of the present invention, second scheduled time can be selected but be not limited to 0 to 45s, generally selected 20s, 30s comparatively reasonable.
When restarting heating, the add ratio of specific heat (heat time and the ratio that stop heat time) different according to the different choice of height above sea level can heat, in the embodiment of the present invention, at least two boiling temperatures and the corresponding relation adding ratio of specific heat can be prestored at electric cooker; Then in described boiling temperature and heating are than corresponding relation, search target according to detect temperature and add ratio of specific heat, and adopt target to add ratio of specific heat in this process to heat.
Generally, the boiling point of the place correspondence that height above sea level is higher is lower, the ratio of specific heat that adds corresponding to it also can be relatively high, in the embodiment of the present invention general by height above sea level according to 90 DEG C, 95 DEG C and 100 DEG C of differentiations that boiling temperature detected, corresponding boiling temperature 90 DEG C to add ratio of specific heat maximum, corresponding boiling temperature 100 DEG C to add ratio of specific heat then minimum.
1305, judge whether culinary art completes, generally whether can be arrived total time by culinary art and judge whether culinary art, if cooked, enter holding mode, concrete holding temperature can be selected but be not limited to 75 DEG C, if culinary art does not complete, returns execution 1303.
The embodiment of the present invention applied in Electromagnetic Heating electric cooker, above all methods heating or start to heat that stops can adopting the mode of shutoff IGBT or startup IGBT to realize.
After the cooking control method of electric cooker adopting the embodiment of the present invention to provide, can judge whether whether neglected loading steam valve or pot cover cover exactly at the culinary art initial stage and put in place, serve the effect of safeguard protection; In cooking process, then can carry out anti-overflow culinary art, reduce the possibility of excessive pot, ensure that the hygiene of electric cooker itself.
After completing culinary art, in order to ensure the safety of uncapping of user, as shown in figure 14, the embodiment of the present invention adopts in culinary art ending phase prompting step of uncapping, the following handling process of concrete employing:
1401, judge whether magneto-dependent sensor detects that magnetic valve body is away from this magneto-dependent sensor, and this state reaches scheduled duration continuously, scheduled duration can be set as that 1min to 5min is not etc. by the present embodiment, concrete detection mode can adopt above-mentioned scheme employed in figure 11, if detect that magnetic valve body reaches scheduled duration away from this magneto-dependent sensor, then perform 1402 processes; Otherwise can 1403 be performed.
1402, send the prompting allowing to uncap, buzzer or display unit specifically can be adopted to send this prompting.
1403, send the prompting not allowing to uncap, buzzer or display unit specifically can be adopted to send prompting.
The embodiment of the present invention mainly applies to electric cooker, especially needs to ensure to have certain humidity in pot, and is exhausted the electric cooker that detection installed by valve.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (14)
1. an anti-overflow moisturizing electric cooker, comprises pot body and pot cover, described pot cover is provided with the steam valve with steam vent; It is characterized in that, the position corresponding to described steam vent in described steam valve is provided with accommodation space, be equipped with valve body in described accommodation space, described valve body seals described vent section region under self gravitation effect, and away from described steam vent under the air propels of discharging from steam vent;
Described pot cover is provided with the sensor being connected to control circuit, and detection signal is sent to described control circuit by described sensor under valve body trigger action.
2. anti-overflow moisturizing electric cooker according to claim 1, is characterized in that, described sensor is mechanical actuating type sensor, and described valve body triggers described mechanical actuating type sensor under gravity; Or described valve body is magnetic valve body, described sensor is magneto-dependent sensor.
3. electric cooker according to claim 2, is characterized in that, described magnetic valve body is tool magnetic column valve body or the magnetic ellipse ball valve of tool or the magnetic ball valve of tool.
4. anti-overflow moisturizing electric cooker according to claim 1, is characterized in that, described steam valve comprises bonnet, and the bottom flange of involutory assembling;
Described bottom flange inside is provided with groove, and described steam vent is opened in described groove; Described valve body is located in the accommodation space of described groove formation; Or
Described bottom flange comprises cover plate and valve holder, is provided with perforation bottom described cover plate, and described valve holder is located at described perforation place; Described valve holder is provided with described steam vent, and described valve body is located in the accommodation space of described valve holder inside.
5. the anti-overflow moisturizing electric cooker according to claim 1 or 4, is characterized in that, described accommodation space diapire and described valve body are respectively equipped with the guide frame matched, and described valve body moves along guide frame.
6. anti-overflow moisturizing electric cooker according to claim 1, is characterized in that, described pot cover is provided with the Anti-stop cover with air-vent covering described steam vent; Or described pot cover is provided with the anti-blocking baffle plate covering described vent section exhaust gas region.
7. the cooking control method of electric cooker described in any one in claim 1 to 6, it is characterized in that, described method comprises:
Detecting step A: in first scheduled time of control circuit after starting electric cooker cooking function, if described sensor detects that described valve body is away from described steam vent, then stop heating.
8. the cooking control method of electric cooker according to claim 7, is characterized in that, described steps A comprises: control circuit performs following steps in first scheduled time after starting electric cooker cooking function:
A1) current kettle temperature is detected;
A2) when kettle temperature is less than protection temperature, if described sensor detects that described valve body is away from described steam vent, then heating is stopped;
A3) kettle temperature be not less than protection temperature time, then stop heating, and if stopping heating the 3rd scheduled time after sensor detect that described valve body is away from described steam vent, then maintain stop heated condition.
9. the cooking control method of electric cooker described in any one in claim 1 to 6, it is characterized in that, described method comprises:
Anti-overflow rate-determining steps B: if select that there is Anti-spill culinary art, after first scheduled time after starting electric cooker cooking function, if described sensor detects that described valve body is away from described steam vent, then control circuit carries out the culinary art of anti-overflow pattern or stops heating.
10. the cooking control method of electric cooker according to claim 9, is characterized in that, described method also comprises:
Rice cooking step C: if select rice culinary art, control circuit, when described sensor does not detect described valve body away from described steam vent, is cooked according to cooking rice pattern.
The cooking control method of 11. electric cookers according to claim 9, it is characterized in that, described step B comprises: if select to have Anti-spill culinary art, control circuit performs following steps after described first scheduled time after starting electric cooker cooking function:
B1) current kettle temperature is detected;
B2) when the temperature detected is greater than spilling temperature, if described sensor detects that described valve body is away from described steam vent, then carry out the culinary art of anti-overflow pattern;
B3) when the temperature detected is not more than spilling temperature, if described sensor detects that described valve body is away from described steam vent, then heating is stopped.
12. according to the cooking control method of the electric cooker in claim 9 to 11 described in any one, and it is characterized in that, the culinary art that described control circuit carries out anti-overflow pattern comprises:
1) when sensor detects described valve body away from described steam vent, heating is stopped;
2) when sensor detects described valve body near described steam vent, after time delay second scheduled time, heating is started.
13., according to the cooking control method of electric cooker described in claim 12, is characterized in that, prestore at least two boiling temperatures and the corresponding relation adding ratio of specific heat in described control circuit of electric rice cooker;
The culinary art of described anti-overflow pattern also comprises: when sensor detects described valve body away from described steam vent, searches target according to the temperature detected and adds ratio of specific heat in described boiling temperature and heating are than corresponding relation;
Startup in described anti-overflow pattern culinary art is heated to be and adds ratio of specific heat according to described target and heat.
14. according to the cooking control method of the electric cooker in claim 9 to 11 described in any one, and it is characterized in that, described method also comprises:
Uncap and remind step D: after completing culinary art, if described sensor detects that described valve body reaches scheduled duration continuously near described steam vent, control circuit then sends the prompting allowing to uncap; Otherwise control circuit sends the prompting not allowing to uncap.
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| CN201210159344.8A CN102805551B (en) | 2011-11-11 | 2012-05-22 | Anti-overflow moisture-preserving electric cooker and cooking control method thereof |
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| CN201110356893.X | 2011-11-11 | ||
| CN201110356893 | 2011-11-11 | ||
| CN201210159344.8A CN102805551B (en) | 2011-11-11 | 2012-05-22 | Anti-overflow moisture-preserving electric cooker and cooking control method thereof |
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| CN103598801A (en) * | 2013-07-25 | 2014-02-26 | 上海新概念电器有限公司 | Novel anti-overflow pot, anti-overflow temperature control scheme and implementation method of anti-overflow temperature control scheme |
| CN105078232B (en) * | 2014-05-14 | 2017-11-03 | 佛山市顺德区美的电热电器制造有限公司 | Cooking apparatus and its control method |
| CN105167591B (en) * | 2015-10-28 | 2018-10-19 | 珠海格力电器股份有限公司 | Electric pressure cooker cover and electric pressure cooker with same |
| CN105373003B (en) * | 2015-11-26 | 2018-09-04 | 小米科技有限责任公司 | parameter correction method and device |
| WO2018032589A1 (en) * | 2016-08-19 | 2018-02-22 | 佛山市顺德区美的电热电器制造有限公司 | Electric cooking device |
| CN107874612B (en) * | 2016-09-30 | 2020-03-03 | 佛山市顺德区美的电热电器制造有限公司 | Cooking utensil |
| CN108201344B (en) * | 2016-12-16 | 2023-05-23 | 佛山市顺德区美的电热电器制造有限公司 | Anti-overflow subassembly and cooking utensil |
| CN108618563B (en) * | 2017-03-17 | 2023-11-28 | 佛山市顺德区美的电热电器制造有限公司 | Cooking appliance and control method of cooking appliance |
| CN108851968A (en) * | 2017-05-12 | 2018-11-23 | 浙江绍兴苏泊尔生活电器有限公司 | Cooking utensil |
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| CN109662603A (en) * | 2017-10-13 | 2019-04-23 | 佛山市顺德区美的电热电器制造有限公司 | The steam valve and cooking apparatus of cooking apparatus |
| CN110558838A (en) * | 2018-06-06 | 2019-12-13 | 佛山市顺德区美的电热电器制造有限公司 | anti-overflow device and cooking assembly |
| CN110572892B (en) * | 2018-06-06 | 2022-07-08 | 佛山市顺德区美的电热电器制造有限公司 | Heating furnace, and control method and system of heating furnace |
| CN109452842B (en) * | 2018-06-26 | 2024-05-14 | 浙江苏泊尔家电制造有限公司 | Cooking appliance and control method for cooking appliance |
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| CN110811289B (en) * | 2018-08-10 | 2021-08-13 | 佛山市爱米吧科技有限公司 | Rice cooking method and device, electric cooker, computer equipment and storage medium |
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Address after: Huaiyin District of Ji'nan City, Shandong Province, 250117 US 999 miles Patentee after: Joyoung Company Limited Address before: Xinsha Road, Huaiyin District of Ji'nan city of Shandong Province, No. 12 250118 Patentee before: Joyoung Company Limited |