CN108309041A - Electric cooking pot and its anti-spilled control device and anti-overflow discharge control method - Google Patents
Electric cooking pot and its anti-spilled control device and anti-overflow discharge control method Download PDFInfo
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- CN108309041A CN108309041A CN201710052029.8A CN201710052029A CN108309041A CN 108309041 A CN108309041 A CN 108309041A CN 201710052029 A CN201710052029 A CN 201710052029A CN 108309041 A CN108309041 A CN 108309041A
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- cooking pot
- electric cooking
- power regulation
- heating
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/56—Preventing boiling over, e.g. of milk
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/24—Warming devices
- A47J36/2483—Warming devices with electrical heating means
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J2201/00—Devices having a modular construction
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Cookers (AREA)
Abstract
The invention discloses a kind of electric cooking pots and its anti-spilled control device and anti-overflow discharge control method, anti-overflow discharge control method to include the following steps：After electric cooking pot enters boiling stage, heating work is carried out with default Power Regulation cooking pot more electric than control, and detect the steam bubble generated when electric cooking pot culinary art；If detecting steam bubble, heating time of the electric cooking pot within the current Power Regulation period is obtained, and need to stop the time T of heating after electric cooking pot overflows than calculating according to heating time of the electric cooking pot within the current Power Regulation period and default Power Regulation；The electric cooking pot of control stops heating, and when the stopping heating time of electric cooking pot reaching T, restore to carry out heating work with default Power Regulation cooking pot more electric than control, so as to heating Power Regulation based on electric cooking pot than calculating stopping heating time when electric cooking pot will overflow, it can not only prevent electric cooking pot from spillover occurs, moreover it is possible to ensure the abundant boiling of electric cooking pot when cooking food.
Description
Technical field
The present invention relates to cooking appliance technical field, more particularly to a kind of anti-overflow discharge control method of electric cooking pot, one kind
The anti-spilled control device of electric cooking pot and a kind of electric cooking pot.
Background technology
Two ways is generally used when the anti-spilled control of electric cooking pot such as electric cooker in the related technology, one is uses
Small-power controls electric cooker heating, to ensure that electric cooker is not overflowed in boiling stage, but boiling can be caused insufficient, shadow
Ring the mouthfeel of cooking food；Another kind is to detect whether electric cooker occurs in boiling stage by assembling anti-spilled detection device
It overflows, and when detecting that electric cooker will overflow, control electric cooker stops heating, and stops the time of heating all every time
It is changeless, equally will also result in boiling deficiency, influence the mouthfeel of cooking food.
Therefore, anti-spilled control mode needs in the related technology are improved.
Invention content
The present invention is directed to solve one of the technical problem in above-mentioned technology at least to a certain extent.For this purpose, the present invention
One purpose is to propose a kind of anti-overflow discharge control method of electric cooking pot, can be counted based on the heating Power Regulation ratio of electric cooking pot
The stopping heating time that electric cooking pot is calculated when will overflow, it can not only prevent electric cooking pot from spillover occurs, moreover it is possible to
Ensure the abundant boiling of electric cooking pot when cooking food.
It is another object of the present invention to propose a kind of anti-spilled control device of electric cooking pot.The present invention another
Purpose is to propose a kind of electric cooking pot.
In order to achieve the above objectives, a kind of anti-overflow discharge control method for electric cooking pot that one aspect of the present invention embodiment proposes,
Include the following steps：After the electric cooking pot enters boiling stage, added than controlling the electric cooking pot with default Power Regulation
Thermal technology makees, and detects the steam bubble generated when the electric cooking pot culinary art by foam detecting device, wherein the default tune
Time the ratio between of the work(than heating time and Power Regulation period for the electric cooking pot within a Power Regulation period；If detecting institute
Steam bubble is stated, then obtains heating time of the electric cooking pot within the current Power Regulation period, and exist according to the electric cooking pot
Heating time and the default Power Regulation in the current Power Regulation period need the time T of stopping heating than calculating the electric cooking pot；
It controls the electric cooking pot and stops heating, and when the stopping heating time of the electric cooking pot reaching T, restore with described default
Power Regulation carries out heating work than controlling the electric cooking pot.
The anti-overflow discharge control method of the electric cooking pot proposed according to embodiments of the present invention enters boiling stage in electric cooking pot
Afterwards, it if generated steam bubble when detecting that electric cooking pot is cooked by foam detecting device, obtains electric cooking pot and exists
Heating time in the current Power Regulation period, and according to heating time of the electric cooking pot within the current Power Regulation period and default Power Regulation ratio
Between relationship calculate electric cooking pot and need to stop the time T of heating, and the electric cooking pot of control stops heating, until electricity culinary art
When the stopping heating time of device reaches T, restore to carry out heating work with default Power Regulation cooking pot more electric than control, to cook based on electricity
Prepare food device heating Power Regulation than calculating stopping heating time when electric cooking pot will overflow, can not only prevent electric culinary art
Spillover occurs for device, moreover it is possible to ensure the abundant boiling of electric cooking pot when cooking food, ensure electric cooking pot institute cooking food
Mouthfeel, improve the quality of life of user.
In some embodiments of the invention, the heating time and institute according to the electric cooking pot within the current Power Regulation period
When stating time T of the default Power Regulation than calculating the electric cooking pot needs stopping heating, wherein as N >=M, T=a-M, wherein a
For the first preset constant, N is heating time of the electric cooking pot within the current Power Regulation period, and M is that the default Power Regulation compares
The heating time answered；As N ＜ M, T=b-N, wherein b is the second preset constant.
In some embodiments of the invention, the heating time and institute according to the electric cooking pot within the current Power Regulation period
When stating time T of the default Power Regulation than calculating the electric cooking pot needs stopping heating, wherein as N >=M, T=M0- N, wherein
M0For the time in a Power Regulation period, N is heating time of the electric cooking pot within the current Power Regulation period, and M is described default
Power Regulation is than corresponding heating time；As N ＜ M, T=b-N, wherein b is the second preset constant.
Specifically, in one embodiment of the invention, wherein M ＜ a ＜ 2M0, M ＜ b ＜ 2M0, M0For a Power Regulation week
The time of phase.
According to one embodiment of present invention, the foam detecting device is arranged in the upper cover of the electric cooking pot.
In order to achieve the above objectives, the anti-spilled control device for the electric cooking pot that another aspect of the present invention embodiment proposes, packet
Include detection module and main control module, wherein after the electric cooking pot enters boiling stage, the main control module is to preset Power Regulation
Heating work is carried out than controlling the electric cooking pot, the detection module detects the electric cooking pot by foam detecting device and cooks
The steam bubble generated when preparing food detects signal to generate foam, wherein the default Power Regulation ratio is the electric cooking pot at one
The ratio between the time of heating time and Power Regulation period in the Power Regulation period；If the detection module exports the foam and detects signal
To the main control module, the main control module then obtains heating time of the electric cooking pot within the current Power Regulation period, and root
It calculates the electric cooking pot according to heating time of the electric cooking pot within the current Power Regulation period and the default Power Regulation ratio and needs
Stop the time T of heating；The main control module, which controls the electric cooking pot when receiving the foam and detecting signal, to be stopped adding
Heat, and when the stopping heating time of the electric cooking pot reaching T, restore with the default Power Regulation than controlling the electric cooking pot
Carry out heating work.
The anti-spilled control device of the electric cooking pot proposed according to embodiments of the present invention enters boiling stage in electric cooking pot
Afterwards, if detection module foam output detects signal to main control module, main control module if, obtains electric cooking pot in current Power Regulation week
Heating time in phase, and according to heating time of the electric cooking pot within the current Power Regulation period and the relationship between default Power Regulation ratio
It calculates electric cooking pot to need to stop the time T of heating, and the electric cooking pot of control stops heating, until the stopping of electric cooking pot adds
When the hot time reaches T, restore to carry out heating work with default Power Regulation cooking pot more electric than control, to the heating based on electric cooking pot
Power Regulation not only can prevent electric cooking pot from overflowing than calculating stopping heating time when electric cooking pot will overflow
Phenomenon, moreover it is possible to ensure the abundant boiling of electric cooking pot when cooking food, ensure the mouthfeel of electric cooking pot institute cooking food, improve
The quality of life of user.
In some embodiments of the invention, the main control module according to the electric cooking pot within the current Power Regulation period
When heating time and the default Power Regulation need to stop the time T of heating than calculating the electric cooking pot, wherein as N >=M, T
=a-M, wherein a is the first preset constant, and N is heating time of the electric cooking pot within the current Power Regulation period, and M is described
Default Power Regulation is than corresponding heating time；As N ＜ M, T=b-N, wherein b is the second preset constant.
In some embodiments of the invention, the main control module according to the electric cooking pot within the current Power Regulation period
When heating time and the default Power Regulation need the time T for stopping heating than calculating after the electric cooking pot overflows, wherein
As N >=M, T=M0- N, wherein M0For the time in a Power Regulation period, N is the electric cooking pot within the current Power Regulation period
Heating time, M are the default Power Regulation than corresponding heating time；As N ＜ M, T=b-N, wherein b is second default normal
Number.
Specifically, in one embodiment of the invention, wherein M ＜ a ＜ 2M0, M ＜ b ＜ 2M0, M0For a Power Regulation week
The time of phase.
According to one embodiment of present invention, the foam detecting device is arranged in the upper cover of the electric cooking pot.
In addition, the embodiment of the present invention also proposed a kind of electric cooking pot comprising the anti-spilled control of above-mentioned electric cooking pot
Device processed.
Electricity cooking pot according to the ... of the embodiment of the present invention can be based on heating Power Regulation ratio by above-mentioned anti-spilled control device
Stopping heating time when will be overflowed to calculate can not only prevent from overflowing, moreover it is possible to ensure filling when cooking food
Divide boiling, ensures the mouthfeel of institute's cooking food, improve the quality of life of user.
Description of the drawings
Fig. 1 is the flow chart of the anti-overflow discharge control method of electric cooking pot according to the ... of the embodiment of the present invention；
Fig. 2 is the heating cooking curve synoptic diagram of electric cooking pot according to an embodiment of the invention；
Fig. 3 a are the structural schematic diagrams of electric cooking pot accord to a specific embodiment of that present invention；
Fig. 3 b are the overflow checking schematic diagrams of electric cooking pot accord to a specific embodiment of that present invention；
Fig. 4 is the structural schematic diagram according to the electric cooking pot of another specific embodiment of the invention；
Fig. 5 a are the circuit diagrams of foam inductive component accord to a specific embodiment of that present invention；
Fig. 5 b are the circuit diagrams according to the foam inductive component of another specific embodiment of the invention；
Fig. 6 is the structural schematic diagram of foam inductive component according to an embodiment of the invention；
Fig. 7 a are the structural representations of the foam inductive component for electric cooking pot accord to a specific embodiment of that present invention
Figure；
Fig. 7 b are shown according to the structure of the foam inductive component for electric cooking pot of another specific embodiment of the invention
It is intended to；
Fig. 8 is the flow chart of the anti-overflow discharge control method of electric cooking pot according to an embodiment of the invention；And
Fig. 9 is the block diagram according to the anti-spilled control device of the electric cooking pot of the embodiment of the present invention.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings come the anti-overflow discharge control method for describing the electric cooking pot that the embodiment of the present invention proposes, electric cooking pot
Anti-spilled control device and electric cooking pot with the anti-spilled control device.
In an embodiment of the present invention, electric cooking pot can be the culinary products such as electric cooker, electric pressure cooking saucepan.
Fig. 1 is the flow chart according to the anti-overflow discharge control method of the electric cooking pot of the embodiment of the present invention.As shown in Figure 1, should
The anti-overflow discharge control method of electric cooking pot includes the following steps：
S1 carries out heating work, and lead to after electric cooking pot enters boiling stage with default Power Regulation cooking pot more electric than control
Cross the steam bubble generated when the electric cooking pot of foam detecting device detection is cooked, wherein default Power Regulation ratio is electric cooking pot one
The ratio between the time of heating time and Power Regulation period in a Power Regulation period.
Wherein, as shown in Fig. 2, electric cooking pot such as electric cooker generally comprises water suction stage, heating rank in cooked rice
Section and is cooked rice over a slow fire the stage at boiling stage, and the spillover of electric cooking pot is usually all to be happened at boiling stage.It needs to illustrate
It is that the boiling stage in the embodiment of the present invention can be interpreted broadly, such as can is after electric cooking pot starts culinary art, by electricity
Temperature in cooking pot is detected, and is detecting that the temperature in electric cooking pot reaches such as 85 degree Celsius -95 of certain temperature and take the photograph
When family name spends, it is believed that electric cooking pot enters boiling stage.
Therefore, in boiling stage, low-power heating can be carried out to control electric cooking pot with default Power Regulation ratio, presets Power Regulation
Than refer to electric cooking pot in boiling stage actually Power Regulation period to be taken heating time and Power Regulation period when
The ratio between, preset Power Regulation usually in seconds than corresponding heating time.That is, in boiling stage, electric cooking pot be according to
Default Power Regulation heats a period of time t1 in an i.e. Power Regulation period, stops heating another a period of time t2, t1 than carrying out intermittent-heating
With the sum of the t2 i.e. time in a Power Regulation period, t1 is default Power Regulation than corresponding heating time.
S2 obtains heating time of the electric cooking pot within the current Power Regulation period if detecting steam bubble, and according to
Heating time and default Power Regulation of the electric cooking pot within the current Power Regulation period need the time for stopping heating than calculating electric cooking pot
T。
Wherein, heating time of the electric cooking pot within the current Power Regulation period is the steam bubble for detecting electric cooking pot and generating
Completed heating time in the last one Power Regulation period when foam, usually in seconds.
S3 controls electric cooking pot and stops heating, and when the stopping heating time of electric cooking pot reaching T, restores with default
Power Regulation cooking pot more electric than control carries out heating work.
It should be noted that in the cooking process of electric cooking pot such as electric cooker, since the heat in pot is constantly accumulated,
It detects that electric cooker will overflow and control electric cooker to stop after heating, due to thermal inertia, the thin rice gruel in pot will not be fallen after rise immediately,
It has a small amount of thin rice gruel to enter in the upper cover steam valve of electric cooker, to ensure that thin rice gruel is fallen after rise to pot completely, needs detecting electricity
After rice cooker will overflow, the time T setting for stopping heating is longer, and boiling is insufficient when this will result in electric rice cooker cooking food.
And the anti-overflow discharge control method of the electric cooking pot of the embodiment of the present invention, detecting the steam bubble generated when electric cooking pot culinary art
Afterwards, it preserves first and presets Power Regulation ratio and completed heating time in the current Power Regulation period, then according to default Power Regulation than corresponding to
Heating time M and in the current Power Regulation period relationship between completed heating time N calculate electric cooking pot need to stop plus
Time T second of heat, and control electric cooking pot and stop after heating T seconds, restore to be heated than control electricity cooking pot with default Power Regulation
Work, can both ensure that thin rice gruel is fallen after rise completely, was not spilt over, and can maintain fully to boil, and thereby may be ensured that institute's cooking food
Such as the quality of rice, improve the mouthfeel of rice.
In one embodiment of the invention, it after electric cooking pot enters boiling stage, can be cooked in electricity by setting
Foam detecting device in the upper cover of device is to detect generated steam bubble when electric cooking pot is cooked.
Specifically, in conjunction with shown in Fig. 3 a to Fig. 7 b, foam detecting device 10 is arranged in the upper cover of electric cooking pot, foam inspection
It includes at least one foam inductive component 101 to survey device 10, wherein senses electric cooking pot in each foam inductive component 101
When the steam bubble of generation, the capacitance of foam detecting device 10 changes；Detection module includes capacitance detecting chips 20, electricity
Hold detection chip 20 with foam detecting device 10 to be connected, the capacitance that capacitance detecting chips 20 pass through detection foam detecting device 10
Situation of change detects signal to generate foam, and capacitance detecting chips 20 are connected with main control module 40, main control module 40 and heating work(
Rate control module 30 is connected, and heating power control module 30 is used to control the heating power of electric cooking pot, 40 basis of main control module
When foam detection signal judges that the capacitance of foam detecting device 10 changes, it is existing to judge that electric cooking pot will occur to overflow
As, and according to default Power Regulation than the relationship meter between completed heating time in corresponding heating time and current Power Regulation period
It calculates electricity cooking pot to need to stop time T second of heating, and electric cooking pot is controlled by heating power control module 30 and stops adding
After T seconds hot, restore to carry out heating work with default Power Regulation cooking pot more electric than control.
Specifically, during the rice water of the internal pot of electric cooking pot is heated, capacitance detecting chips 20 can be real-time
The capacitance variation amount for detecting foam detecting device 10, when electric cooking pot is in water suction stage and heating period, electric cooking pot
The temperature of rice aqueous mixtures in interior pot is relatively low, does not generally generate steam bubble or only generates a small amount of steam bubble, foam
The capacitance of detection device 10 does not change；After the meter Shui of pot is heated to boiling inside, the steam bubble for generation of boiling will
The foam inductive component 101 being arranged in different location can be touched, each foam inductive component 101 is when touching steam bubble
Its capacitance can change, and then the capacitance of foam detecting device 10 changes.Further, capacitance detecting chips
The capacitance variation amount of 20 detection foam detecting devices, if the capacitance variation amount of foam detecting device 10 is less than or equal to preset
Threshold value, then main control module 40 judges that the capacitance of foam detecting device 10 does not change, and controls electric cooking pot and keep default
Power Regulation ratio is heated；If the capacitance variation amount of foam detecting device 10 is more than predetermined threshold value, foam detection dress is judged
The capacitance set changes, and detects that spillover will occur for electric cooking pot.
According to one embodiment of present invention, as illustrated in figures 3 a and 4, each foam inductive component 101 is arranged at
The lower surface covered in or on steam channel 3 on lid 4.As shown in Figure 3a, foam inductive component 101 can be one, foam induction
Component 101 is arranged in the steam channel 3 of electric cooking pot, in steam channel 3 in the circulating direction of steam such as Fig. 3 a shown in arrow
Direction.
Specifically, when rice water ebuillition of heated in pot in electric cooking pot, the steam that is generated in the interior pot of electric cooking pot
According to circulating direction contact foam inductive component 101 shown in Fig. 3 a, capacitance detecting chips 20 are detected foam by detecting foam
The capacitance variation amount of device 10 detects signal to generate foam.In turn, main control module 40 detects signal according to foam and judges to steep
Whether the capacitance of foam detection device 10 changes, when the capacitance variation amount of foam detecting device 10 is more than predetermined threshold value
When, main control module 40 judges that the capacitance of foam detecting device 10 changes, to judge that electric cooking pot will overflow
Occur as.
A specific embodiment according to the present invention, as shown in Figure 3b, the electricity of capacitance detecting chips 20 and main control module 40
Source is connected with default power vd D, presets power vd D and is used to power for capacitance detecting chips 20 and main control module 40, capacitance inspection
It surveys between chip 20 and foam detecting device 10 and is also associated with first resistor R1.Wherein, first resistor R1 is used to incude foam
The capacitance variation amount signal of component 101 is filtered, jamproof so as to play the role of.
The resistance value of a specific example according to the present invention, first resistor R1 can be 10 Ω to 10k Ω.
According to one embodiment of present invention, when foam inductive component 101 is multiple, each foam inductive component 101
Installation position and horizontal plane between height gradually get higher successively.In other words, each foam inductive component 101 is mixed with rice water
Distance is gradually got higher successively between the liquid level of object.And the setting height of foam inductive component 101 is higher, foam inductive component
101 also can be closer to the steam (vapor) outlet A in steam channel.
It specifically, can be by the lug boss in the setting different height of steam channel 3, to make foam inductive component 101 set
It sets in different height.
For example, as shown in figure 4, two foam inductive components 101 can be arranged in the steam channel 3 of electric cooking pot,
That is the first foam inductive component 101A and the second foam inductive component 101B, wherein the second foam inductive component 101B settings exist
The rear end of steam channel 3, and the upper surface inside steam channel 3, the first foam sense is arranged in the second foam inductive component 101B
Component 101A is answered to be arranged in the front end of steam channel 3, and the lug boss 301 in upper surface is arranged in the first foam inductive component 101A
On, the setting height of the second foam inductive component 101B is higher than the setting height of the first foam inductive component 101A as a result,.
It should be understood that the circulating direction of steam direction as shown by the arrows in Figure 4 in steam channel 3, from arrow
Change direction, which can be seen that, can enter steam channel after steam bubble generates, and gradually be leaned on to the steam (vapor) outlet A of steam channel 3
Closely, it and gradually hoists close, therefore steam bubble first contacts the first foam inductive component 101A, then contacts the induction of the second foam
Component 101B.
Specifically, as shown in figure 4, in electric cooking pot in the heating process of the meter Shui of pot, steam bubble can rise to bubble
The location of foam detection device 10, when steam bubble touches the first foam inductive component 101A, the first foam sense group
The capacitance of part 101A changes, and capacitance detecting chips 20 detect that the capacitance variation amount of foam detecting device 10 is Δ
C1, Δ C1 are less than or equal to predetermined threshold value, and capacitance detecting chips 20 produce the first foam and detect signal, wherein the first foam is examined
Survey signal is chip readable signal such as digital signal, at this point, main control module 40 judges the capacitance of foam detecting device 10 not
It changes, keeps current Power Regulation than constant to which main control module 40 controls heating module 5 by heating power control module 30；
Continue to heat, when steam bubble touches the second foam inductive component 101B, the first foam inductive component 101A and
The capacitance of two foam inductive component 101B changes, and capacitance detecting chips 20 detect the capacitance of foam detecting device 10
Value variable quantity is Δ C2, and Δ C2 is more than predetermined threshold value, and capacitance detecting chips 20 produce the second foam and detect signal, wherein the
It is chip readable signal such as digital signal that two foams, which detect signal, and main control module 40 judges the electricity of foam detecting device 10 at this time
Capacitance changes, to detect that spillover will occur for electric cooking pot.
It should be noted that capacitance detecting chips 20 detect that the capacitance variation amount of foam detecting device 10 can be multiple
The sum of the capacitance variation amount of foam inductive component 101.
According to one embodiment of present invention, after multiple foam inductive components 101 are connected together again with capacitance detecting core
Piece 20 is connected.
A specific embodiment according to the present invention, as shown in Figure 5 a, after multiple foam inductive components 101 are connected together
It is connected again with capacitance detecting chips 20 by first resistor R1.Wherein, first resistor R1 is used for the electricity to foam inductive component 101
Capacitance variable quantity signal is filtered, jamproof so as to play the role of.
The resistance value of a specific example according to the present invention, first resistor R1 can be 10 Ω to 10k Ω.
According to one embodiment of present invention, each foam inductive component 101 is connected with capacitance detecting chips 20 respectively.
A specific embodiment according to the present invention, as shown in Figure 5 b, each foam inductive component 101 passes through second respectively
Resistance R2 is connected with capacitance detecting chips 20.Wherein, second resistance R2 is used for the capacitance variation amount to foam inductive component 101
Signal is filtered, jamproof so as to play the role of.
The resistance value of a specific example according to the present invention, second resistance R2 can be 10 Ω to 10k Ω.
A specific embodiment according to the present invention, as shown in fig. 6, each foam inductive component 101 includes foam contacting
Portion 11 and induction part 12, wherein foam contacting portion 11 is insulator 100, and induction part 12 is electric conductor 200, and insulator 100 will steam
Steam foam is isolated with electric conductor 200.
Specifically, as shown in fig. 6, insulator 100 defines the open accommodating chamber 120 in upper surface, and electric conductor 200
Define upper surface, lower surface and side, wherein electric conductor 200 is located in accommodating chamber 120, insulator 100 while coated with conductive
The lower surface and side of body 200, and the upper surface of electric conductor 200 from insulator 100 expose, in order to capacitance detecting chips 20
It is connected.In this way, by the combination of insulator 100 and electric conductor 200, condenser type foam inductive component 101 can be formed.
It is each in foam detecting device 10 when the foam contacting portion 11 of foam inductive component 101 is not in contact with to steam bubble
Foam inductive component 101 only has the parasitic capacitance of itself；In electric cooking pot when rice water ebuillition of heated in pot, the steam of generation
Capacitance is constituted between foam and the foam contacting portion 11 and induction part 12 of foam inductive component 101, according to the decision formula of capacitance：(wherein, ε is dielectric constant, and S is face surface area, distances of the d between pole plate) is it is found that in electric cooking pot in pot
Rice water ebuillition of heated it is more violent, the steam bubble of generation is more, and the area that foam contacting portion 11 is covered by steam bubble is bigger,
Face surface area S between pole plate is bigger, then the capacitance variation amount of foam detecting device 10 is bigger.
Steam bubble is isolated with electric conductor 200 by insulator 100 for foam detecting device as a result, insulator 100
With steam bubble mediate contact, and the capacitance variation by detecting foam inductive component 101 detects steam bubble, to,
Realize the connectorless detection of foam.
A specific embodiment according to the present invention, insulator 100 are close to be arranged with electric conductor 200.Wherein, insulator
100 thickness can be 1-10mm.
Specifically, it is according to the decision formula of capacitance：It is found that the thickness of insulator 100 is bigger, pole plate spacing
Bigger from d, identical in steam bubble spill-out, the variable quantity of capacitance is smaller.In this way, can select as the case may be
Select the thickness of insulator 100.
The foam sense group for electric cooking pot accord to a specific embodiment of that present invention is described with reference to Fig. 7 a
Part 101.
As shown in Figure 7a, the foam inductive component 101 according to the ... of the embodiment of the present invention for electric cooking pot includes insulator
100 and electric conductor 200.
Specifically, electric conductor 200 is horizontally disposed, i.e. the thickness direction of electric conductor 200 orients along the vertical direction, thus leads
Downward, the lower surface (i.e. detection faces 110) of insulator 100 is horizontal downward, increases effective detection for the lower surface level of electric body 200
Area, to improve the sensitivity of overflow checking.
Optionally, the size of detection faces 110 can be depending on the size requirements to detecting signal in practical application.
For example, the area of detection faces 110 is 50mm2-400mm2, on the one hand, it, still can be with when there is less foam contacting detection faces 110
Ensure in detection, on the other hand the variation of capacitance is sufficiently large to, it is ensured that external smaller to the interference of overflow checking.
Advantageously, detection faces 110 are circle, i.e. electric conductor 200 is circular piece, not only facilitates processing and manufacturing in this way, but also
The cross section of the cooking cavity of electric cooking pot is generally circular, 110 applicability higher of circular detection faces.
Certainly, electric conductor 200 and detection faces 110 or other arbitrary shapes, the present invention are not especially limited this.
In some specific embodiments of the present invention, as shown in Figure 7a, 100 further coated with conductive body 200 of insulator
Side, i.e. insulator 100 while the lower surface and side of coated with conductive body 200.It is possible thereby to improve foam inductive component 101
The reliability of overflow checking function.
Specifically, as shown in Figure 7a, insulator 100 defines the open accommodating chamber 120 in upper surface, and electric conductor 200 is located at
In accommodating chamber 120, the lower surface and side of the coated with conductive body 200 simultaneously of insulator 100, and the upper surface of electric conductor 200 is from exhausted
Edge body 100 exposes, in order to be connected with capacitance detecting chips.
Advantageously, as shown in Figure 7a, the height of accommodating chamber 120 is more than the thickness of electric conductor 200, and electric conductor 200 is located at appearance
Receiving the bottom of chamber 120 in this way can be stably placed on electric conductor 200 in insulator 100 since the thickness of electric conductor 200 is smaller,
Prevent electric conductor 200 from deviating from the accommodating chamber 120 of insulator 100.
The foam induction for electric cooking pot according to another specific embodiment of the invention is described with reference to Fig. 7 b
Component 101, the foam inductive component 101 for electric cooking pot constitute capacitance type detector.
It will be appreciated by those skilled in the art that capacitance type detector refers to, according to capacitance induction principle, work as quilt
When detection device is drawn in survey medium leaching, cause its capacitance variations, this variation is converted into standard current signal, and then realizes anti-overflow
Relevant control.
Specifically, as shown in Figure 7b, the foam inductive component 101 according to the ... of the embodiment of the present invention for electric cooking pot wraps
Include mounting base 300, detection lug 400, mounting bracket 500 and elastic component 600.
Mounting base 300 is equipped with the open groove in upper surface 310.Detection lug 400 is located in groove 310.Mounting bracket 500
It is removably installed on the upper surface of mounting base 300.Elastic component 600 is located between mounting bracket 500 and detection lug 400, bullet
Property part 600 is mounted holder 500 and is pressed in groove 310, and detection lug 400 is pressed on the bottom wall of groove 310 by elastic component 600
On.
Foam inductive component 101 according to the ... of the embodiment of the present invention for electric cooking pot, using detection lug 400 and mounting base
300 combination forms capacitance type detector, when under liquid (such as steam bubble) the contact mounting base 300 in electric cooking pot
When surface is with 400 corresponding part of detection lug, you can realize that the detection of spill over, cost are lower.Also, detection lug 400 is adopted
It is pressed in groove 310 with elastic component 600 and mounting bracket 500, and mounting bracket 500 is removably installed on mounting base 300
On, the dismounting that detection lug 400 can be realized in mounting bracket 500 thus need to be only dismounted, simple and convenient can ensure good technique
Assembling.Therefore, the foam inductive component 101 according to the ... of the embodiment of the present invention for electric cooking pot has at low cost, dismounting side
Just the advantages that.
As shown in Figure 7b, the foam inductive component 101 according to the ... of the embodiment of the present invention for electric cooking pot includes mounting base
300, detection lug 400, mounting bracket 500 and elastic component 600.
Advantageously, elastic component 600 is integrated with mounting bracket 500, can be further reduced dismounting step in this way, to
Further facilitate dismounting.
The present invention some specific embodiments in, as shown in Figure 7b, elastic component 600 can be spring, the upper end of spring with
Mounting bracket 500 is connected and lower end is against on detection lug 400.
Further, mounting bracket 500 is formed by the upper end coiling of the spring, in other words, again by the upper end of spring
Predetermined shape is turned to constitute mounting bracket 500, it is possible thereby to by 500 integration of elastic component 600 and mounting bracket, and technique
Simply, at low cost.
It is understood that in other embodiments of the invention, when being cooked to electric cooking pot by foam detecting device
When the steam bubble of generation is detected, other detection modes, such as electrode detection mode etc. can also be used.
Wherein, it should be noted that in an embodiment of the present invention, in the heat temperature raising stage of electric cooking pot, rice in pot
Water does not arrive boiling, does not generate foam, therefore does not overflow.Without residual water within the stage of cooking rice over a slow fire, pot, bubble also not will produce
Foam is not spilt over.Therefore in the heat temperature raising stage and cook rice over a slow fire the stage, if detecting steam bubble, it is regarded as false triggering, is not done
Anti-spilled control process.
In one embodiment of the invention, the heating time and institute according to the electric cooking pot within the current Power Regulation period
When stating default Power Regulation and needing to stop the time T of heating after the electric cooking pot overflows than calculating, wherein as N >=M, T=
A-M, wherein a is the first preset constant, and N is heating time of the electric cooking pot within the current Power Regulation period, and M is described pre-
If Power Regulation is than corresponding heating time；As N ＜ M, T=b-N, wherein b is the second preset constant.
It is understood that the first preset constant a and the second preset constant b can be according to the data of electric cooking pot actual test
It is determined, such as a can be 14~22 seconds, it is therefore preferable to which 18 seconds, b can be 6~14 seconds, it is therefore preferable to 10 seconds.
Certainly, in one embodiment of the invention, M ＜ a ＜ 2M0, M ＜ b ＜ 2M0, M0For Power Regulation period when
Between, such as can be 16~32 seconds, it is therefore preferable to 16 seconds.
It should be noted that in one embodiment of the invention, in electric cooking pot such as electric rice cooker cooking rice, the
One preset constant a and the second preset constant b can be set as different values according to different rice amounts.Can also be regardless of rice amount is more
Few, the first preset constant a and the second preset constant b are set as identical value.
Wherein, can be different according to rice amount grade, difference can be arranged in default Power Regulation ratio, shown in table 1 specific as follows.
Table 1
| Rice amount grade | Default Power Regulation ratio (M/M0) | Default Power Regulation is than corresponding heating time M |
| Rice amount | 10/16 | 10 seconds |
| Millet amount | 6/16 | 6 seconds |
In another embodiment of the present invention, the heating time according to the electric cooking pot within the current Power Regulation period and
When the default Power Regulation needs the time T for stopping heating than calculating after the electric cooking pot overflows, wherein as N >=M, T
=M0- N, wherein M0For the time in a Power Regulation period, N is heating time of the electric cooking pot within the current Power Regulation period, M
It is the default Power Regulation than corresponding heating time；As N ＜ M, T=b-N, wherein b is the second preset constant.
Preferably, the first preset constant a can also be equal to the second preset constant b.
Specifically, in one embodiment of the invention, as shown in figure 8, the anti-spilled controlling party of above-mentioned electric cooking pot
Method includes the following steps：
S10, electric cooking pot cooking food extremely enter boiling stage.
S20 judges the steam bubble generated when whether foam detecting device detects electric cooking pot culinary art.If so, holding
Row step S30；If not, return to step S20.
S30 preserves heating time and default Power Regulation ratio of the electric cooking pot within the current Power Regulation period.
S40, according to heating time of the electric cooking pot within the current Power Regulation period and default Power Regulation ratio corresponding heating time
Electric cooking pot is calculated to need to stop time T second of heating.
S50 controls electric cooking pot and stops heating T seconds.
S60 restores to continue heating work with default Power Regulation cooking pot more electric than control.
In an embodiment of the present invention, electric cooking pot such as electric cooker is above-mentioned by executing during cooking food
Anti-overflow discharge control method, can not only effectively prevent electric cooking pot that spillover occurs, moreover it is possible to ensure that electric cooking pot is being cooked
Abundant boiling when food.Wherein, electric cooking pot cooking food is not limited to cook, and can also be and cooks congee, cooks congee or cooking
Deng.
The anti-overflow discharge control method of the electric cooking pot proposed according to embodiments of the present invention enters boiling stage in electric cooking pot
Afterwards, it if generated steam bubble when detecting that electric cooking pot is cooked by foam detecting device, obtains electric cooking pot and exists
Heating time in the current Power Regulation period, and according to heating time of the electric cooking pot within the current Power Regulation period and default Power Regulation ratio
Between relationship calculate electric cooking pot and need to stop the time T of heating, and the electric cooking pot of control stops heating, until electricity culinary art
When the stopping heating time of device reaches T, restore to carry out heating work with default Power Regulation cooking pot more electric than control, to cook based on electricity
Prepare food device heating Power Regulation than calculating stopping heating time when electric cooking pot will overflow, can not only prevent electric culinary art
Spillover occurs for device, moreover it is possible to ensure the abundant boiling of electric cooking pot when cooking food, ensure electric cooking pot institute cooking food
Mouthfeel, improve the quality of life of user.
Fig. 9 is the block diagram according to the anti-spilled control device of the electric cooking pot of the embodiment of the present invention.Such as Fig. 9 institutes
Show, the anti-spilled control device of the electricity cooking pot includes detection module 1000 and main control module 40.
Wherein, after electric cooking pot enters boiling stage, main control module 40 is with default Power Regulation than controlling the electric cooking pot
Carry out heating work, and detection module 1000 by foam detecting device detect the steam bubble generated when electric cooking pot is cooked with
It generates foam and detects signal, wherein the default Power Regulation is than the heating time for the electric cooking pot within a Power Regulation period
The ratio between with the time in Power Regulation period；If detection module 1000 exports the foam and detects signal to main control module 40, master control mould
Block 40 then obtains heating time of the electric cooking pot within the current Power Regulation period, and according to the electric cooking pot in current Power Regulation
Heating time and the default Power Regulation in period need the time T for stopping heating than calculating the electric cooking pot；Main control module
40, which control the electric cooking pot when receiving foam and detecting signal, stops heating, and in the stopping heating of the electric cooking pot
Between when reaching T, restore with the default Power Regulation than controlling the electric cooking pot progress heating work.
In one embodiment of the invention, detection module 1000 may include that capacitance detecting chips, foam detecting device can
It is arranged in the upper cover of electric cooking pot.
Wherein, preset it is that Power Regulation ratio refers to electric cooking pot in boiling stage actually Power Regulation period to be taken plus
The ratio between the time of hot time and Power Regulation period preset Power Regulation usually in seconds than corresponding heating time.That is, boiling
Stage, electric cooking pot are to heat a period of time t1 than carrying out intermittent-heating according to default Power Regulation in an i.e. Power Regulation period, stop
Heat another a period of time t2, the sum of t1 and t2 are the time in a Power Regulation period, t1 be default Power Regulation than corresponding heating when
Between.
Heating time of the electric cooking pot within the current Power Regulation period is when detecting the steam bubble that electric cooking pot generates
The last one Power Regulation period in completed heating time, usually in seconds.
In one embodiment of the invention, main control module 40 is according to electric cooking pot the adding within the current Power Regulation period
When hot time and the default Power Regulation need the time T for stopping heating than calculating after the electric cooking pot overflows, wherein when
When N >=M, T=a-M, wherein a is the first preset constant, and N is heating time of the electric cooking pot within the current Power Regulation period,
M is the default Power Regulation than corresponding heating time；As N ＜ M, T=b-N, wherein b is the second preset constant.
It is understood that the first preset constant a and the second preset constant b can be according to the data of electric cooking pot actual test
It is determined, such as a can be 18 seconds, b can be 10 seconds.
Certainly, in one embodiment of the invention, M ＜ a ＜ 2M0, M ＜ b ＜ 2M0, M0For Power Regulation period when
Between, such as can be 16 seconds.
In another embodiment of the present invention, main control module 40 according to the electric cooking pot within the current Power Regulation period
When heating time and the default Power Regulation need the time T for stopping heating than calculating after the electric cooking pot overflows, wherein
As N >=M, T=M0- N, wherein M0For the time in a Power Regulation period, N is the electric cooking pot within the current Power Regulation period
Heating time, M are the default Power Regulation than corresponding heating time；As N ＜ M, T=b-N, wherein b is second default normal
Number.
The anti-spilled control device of the electric cooking pot proposed according to embodiments of the present invention enters boiling stage in electric cooking pot
Afterwards, if detection module foam output detects signal to main control module, main control module if, obtains electric cooking pot in current Power Regulation week
Heating time in phase, and according to heating time of the electric cooking pot within the current Power Regulation period and the relationship between default Power Regulation ratio
It calculates electric cooking pot to need to stop the time T of heating, and the electric cooking pot of control stops heating, until the stopping of electric cooking pot adds
When the hot time reaches T, restore to carry out heating work with default Power Regulation cooking pot more electric than control, to the heating based on electric cooking pot
Power Regulation not only can prevent electric cooking pot from overflowing than calculating stopping heating time when electric cooking pot will overflow
Phenomenon, moreover it is possible to ensure the abundant boiling of electric cooking pot when cooking food, ensure the mouthfeel of electric cooking pot institute cooking food, improve
The quality of life of user.
In addition, the embodiment of the present invention also proposed a kind of electric cooking pot comprising the anti-spilled control of above-mentioned electric cooking pot
Device processed.
Electricity cooking pot according to the ... of the embodiment of the present invention can be based on heating Power Regulation ratio by above-mentioned anti-spilled control device
Stopping heating time when will be overflowed to calculate can not only prevent from overflowing, moreover it is possible to ensure filling when cooking food
Divide boiling, ensures the mouthfeel of institute's cooking food, improve the quality of life of user.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is directly under or diagonally below the second feature, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (11)
1. a kind of anti-overflow discharge control method of electricity cooking pot, which is characterized in that include the following steps：
After the electric cooking pot enters boiling stage, heating work is carried out than controlling the electric cooking pot with default Power Regulation, and
The steam bubble generated when the electric cooking pot culinary art is detected by foam detecting device, wherein the default Power Regulation ratio is institute
State the ratio between the time of electric the cooking pot heating time within a Power Regulation period and Power Regulation period；
If detecting the steam bubble, heating time of the electric cooking pot within the current Power Regulation period, and root are obtained
It calculates the electric cooking pot according to heating time of the electric cooking pot within the current Power Regulation period and the default Power Regulation ratio and needs
Stop the time T of heating；
It controls the electric cooking pot and stops heating, and when the stopping heating time of the electric cooking pot reaching T, restore with described
Default Power Regulation carries out heating work than controlling the electric cooking pot.
2. the anti-overflow discharge control method of electricity cooking pot as described in claim 1, which is characterized in that existed according to the electric cooking pot
Heating time and the default Power Regulation in the current Power Regulation period need the time T of stopping heating than calculating the electric cooking pot
When, wherein
As N >=M, T=a-M, wherein a is the first preset constant, and N is electric cooking pot the adding within the current Power Regulation period
Hot time, M are the default Power Regulation than corresponding heating time；
As N ＜ M, T=b-N, wherein b is the second preset constant.
3. the anti-overflow discharge control method of electricity cooking pot as described in claim 1, which is characterized in that existed according to the electric cooking pot
Heating time and the default Power Regulation in the current Power Regulation period need the time T of stopping heating than calculating the electric cooking pot
When, wherein
As N >=M, T=M0- N, wherein M0For the time in a Power Regulation period, N is the electric cooking pot in the current Power Regulation period
Interior heating time, M are the default Power Regulation than corresponding heating time；
As N ＜ M, T=b-N, wherein b is the second preset constant.
4. the anti-overflow discharge control method of electricity cooking pot as claimed in claim 2, which is characterized in that wherein, M ＜ a ＜ 2M0, M ＜ b
＜ 2M0, M0For the time in a Power Regulation period.
5. the anti-overflow discharge control method of electricity cooking pot as described in claim 1, which is characterized in that the foam detecting device is set
It sets in the upper cover of the electric cooking pot.
6. a kind of anti-spilled control device of electricity cooking pot, which is characterized in that including detection module and main control module, wherein
After the electric cooking pot enters boiling stage, the main control module is carried out with default Power Regulation than controlling the electric cooking pot
Heating work, the detection module detect the steam bubble generated when the electric cooking pot is cooked with life by foam detecting device
Detect signal at foam, wherein the default Power Regulation than be heating time of the electric cooking pot within a Power Regulation period with
The ratio between the time in Power Regulation period；
If the detection module exports the foam and detects signal to the main control module, described in main control module if obtains
Heating time of the electric cooking pot within the current Power Regulation period, and when according to heating of the electric cooking pot within the current Power Regulation period
Between and the default Power Regulation need to stop the time T of heating than calculating the electric cooking pot；
The main control module controls the electric cooking pot when receiving the foam and detecting signal and stops heating, and in the electricity
When the stopping heating time of cooking pot reaches T, restore to carry out heating work than controlling the electric cooking pot with the default Power Regulation.
7. the anti-spilled control device of electricity cooking pot as claimed in claim 6, which is characterized in that the main control module is according to institute
It states heating time of the electric cooking pot within the current Power Regulation period and the default Power Regulation ratio calculates the electric cooking pot and needs to stop
When the time T of heating, wherein
As N >=M, T=a-M, wherein a is the first preset constant, and N is electric cooking pot the adding within the current Power Regulation period
Hot time, M are the default Power Regulation than corresponding heating time；
As N ＜ M, T=b-N, wherein b is the second preset constant.
8. the anti-spilled control device of electricity cooking pot as claimed in claim 6, which is characterized in that the main control module is according to institute
It states heating time of the electric cooking pot within the current Power Regulation period and the default Power Regulation ratio calculates the electric cooking pot and overflows
When needing the time T for stopping heating afterwards, wherein
As N >=M, T=M0- N, wherein M0For the time in a Power Regulation period, N is the electric cooking pot in the current Power Regulation period
Interior heating time, M are the default Power Regulation than corresponding heating time；
As N ＜ M, T=b-N, wherein b is the second preset constant.
9. the anti-spilled control device of electricity cooking pot as claimed in claim 7, which is characterized in that wherein, M ＜ a ＜ 2M0, M ＜ b
＜ 2M0, M0For the time in a Power Regulation period.
10. the anti-spilled control device of electricity cooking pot as claimed in claim 6, which is characterized in that the foam detecting device
It is arranged in the upper cover of the electric cooking pot.
11. a kind of electricity cooking pot, which is characterized in that include the anti-overflow of the electric cooking pot as described in any one of claim 6-10
Go out control device.
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| CN201710052029.8A CN108309041B (en) | 2017-01-18 | 2017-01-18 | Electric cooker, anti-overflow control device and anti-overflow control method thereof |
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| CN201710052029.8A CN108309041B (en) | 2017-01-18 | 2017-01-18 | Electric cooker, anti-overflow control device and anti-overflow control method thereof |
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