CN108309036A - Electric cooking pot and its anti-spilled failure detector and anti-spilled fault detection method - Google Patents
Electric cooking pot and its anti-spilled failure detector and anti-spilled fault detection method Download PDFInfo
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- CN108309036A CN108309036A CN201710035298.3A CN201710035298A CN108309036A CN 108309036 A CN108309036 A CN 108309036A CN 201710035298 A CN201710035298 A CN 201710035298A CN 108309036 A CN108309036 A CN 108309036A
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- cooking pot
- electric cooking
- foam
- spilled
- detection
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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
- A47J36/32—Time-controlled igniting mechanisms or alarm devices
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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
- A47J2201/00—Devices having a modular construction
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- Food Science & Technology (AREA)
- Cookers (AREA)
Abstract
The invention discloses a kind of electric cooking pot and its anti-spilled failure detectors and anti-spilled fault detection method, wherein anti-spilled fault detection method includes the following steps：After the electric cooking pot enters the heating period, the temperature in the electric cooking pot is detected in real time, and the steam bubble generated when the electric cooking pot culinary art is detected by foam detecting device；If detecting the steam bubble, foam detection signal is generated, and obtains the duration of the foam detection signal；It is less than preset boiling temperature less than the Current Temperatures in the first preset time and the electric cooking pot when the duration that the foam detects signal, judge that anti-spilled detection false triggering occurs for the electric cooking pot, so as to avoid the culinary art of the electric cooking pot caused by false triggering ineffective, fully meet the use demand of user.
Description
Technical field
The present invention relates to cooking appliance technical field, more particularly to a kind of anti-spilled fault detection method of electric cooking pot,
The anti-spilled failure detector and a kind of electric cooking pot of a kind of electricity cooking pot.
Background technology
When the anti-spilled detection of electric cooking pot such as electric cooker in the related technology, detects that electric cooking pot occurs to overflow and just touch
The cooking pot that generates electricity stops heating, and the time for stopping heating every time is all changeless.And in electric rice cooker cooking rice
Heating period, meter Shui does not boil in pot, will not overflow, if detect at this time overflow just control electric cooker stop adding
Heat can not only largely effect on culinary art effect, influence the mouthfeel of institute's cooked rice, be also unable to complete successfully and cook sometimes, influence to use
The use at family.
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-spilled fault detection method of electric cooking pot, can based in electric cooking pot temperature and
The duration of foam detection signal identifies whether electric cooking pot occurs anti-spilled detection false triggering, to avoid because of false triggering
Caused by electric cooking pot culinary art it is ineffective, fully meet the use demand of user.
It is another object of the present invention to propose a kind of anti-spilled failure detector of electric cooking pot.The present invention is again
One purpose is to propose a kind of electric cooking pot.
In order to achieve the above objectives, a kind of anti-spilled fault detect side for electric cooking pot that one aspect of the present invention embodiment proposes
Method includes the following steps：After the electric cooking pot enters the heating period, the temperature in the electric cooking pot is detected in real time, and
The steam bubble generated when the electric cooking pot culinary art is detected by foam detecting device；If detecting the steam bubble,
Foam detection signal is then generated, and obtains the duration of the foam detection signal；When the foam detects continuing for signal
The Current Temperatures that time is less than in the first preset time and the electric cooking pot are less than preset boiling temperature, judge that the electricity is cooked
Anti-spilled detection false triggering occurs for device of preparing food.
The anti-spilled fault detection method of the electric cooking pot proposed according to embodiments of the present invention enters heating in electric cooking pot
After stage, the temperature in the electric cooking pot of detection in real time, and the steaming generated when electric cooking pot culinary art is detected by foam detecting device
Steam foam generates foam detection signal, and obtain the duration of foam detection signal if detecting steam bubble, and
The duration that signal is detected in foam is less than preset boiling point less than the Current Temperatures in the first preset time and electric cooking pot
Judge that anti-spilled detection false triggering occurs for electric cooking pot when temperature, avoids controlling electric cooking pot because of anti-spilled detection false triggering
Stop heating, to avoid the culinary art of the electric cooking pot caused by false triggering ineffective so that electric cooking pot fully meets
The use demand of user.
According to one embodiment of present invention, when the foam detect signal duration be more than the second preset time and
When Current Temperatures in the electricity cooking pot are less than the preset boiling temperature, judge that anti-spilled inspection occurs for the electric cooking pot
Failure is surveyed, and controls the low-power culinary art pattern that the electric cooking pot enters non-spill detection, and is cooked in the electric cooking pot
After the completion of preparing food, controls the electric cooking pot and send out fault cues information, wherein second preset time is greater than or equal to described
First preset time.
In some embodiments of the invention, when anti-spilled detection false triggering occurs for the electric cooking pot, described in control
Electric cooking pot keeps current heated condition, until the electric cooking pot enters boiling stage.
Specifically, first preset time can be 0-5 seconds, and second preset time can be 5-10 seconds.
According to one embodiment of present invention, can by the temperature sensor in the upper cover of the electric cooking pot is set with
The temperature in the electric cooking pot is detected in real time.
In order to achieve the above objectives, the anti-spilled fault detect dress for the electric cooking pot that another aspect of the present invention embodiment proposes
It sets, including first detection module, the second detection module and main control module, wherein the first detection module is used in the electricity
Cooking pot entered after the heating period detects the steam bubble generated when the electric cooking pot culinary art by foam detecting device, and
Foam detection signal is generated when detecting the steam bubble；Second detection module is used to enter institute in the electric cooking pot
State the temperature detected in real time after the heating period in the electric cooking pot；The main control module is used to receive the foam detection
The duration of the foam detection signal is obtained when signal, and detects the duration of signal in advance less than first in the foam
If it is anti-overflow that the Current Temperatures in time and the electric cooking pot judge that the electric cooking pot occurs when being less than preset boiling temperature
Go out to detect false triggering.
The anti-spilled failure detector of the electric cooking pot proposed according to embodiments of the present invention enters heating in electric cooking pot
After stage, the temperature in electric cooking pot is detected in real time by the second detection module, and first detection module is detected by foam
The steam bubble that device detection electric cooking pot generates when cooking, and generate foam when detecting steam bubble and detect signal, such as
Fruit main control module receives foam detection signal, then obtains the duration of foam detection signal, and detect signal in foam
The Current Temperatures that duration is less than in the first preset time and electric cooking pot judge electricity culinary art when being less than preset boiling temperature
Anti-spilled detection false triggering occurs for device, avoids controlling electric cooking pot stopping heating because of anti-spilled detection false triggering, to keep away
The culinary art for exempting from the electric cooking pot caused by false triggering is ineffective so that electric cooking pot fully meets the use demand of user.
According to one embodiment of present invention, when the foam detect signal duration be more than the second preset time and
When Current Temperatures in the electricity cooking pot are less than the preset boiling temperature, electric cooking pot described in the master control module judges
Anti-spilled detection failure occurs, and controls the low-power culinary art pattern that the electric cooking pot enters non-spill detection, and in institute
After the completion of stating the culinary art of electric cooking pot, electric cooking pot described in the master control module controls sends out fault cues information, wherein described the
Two preset times are greater than or equal to first preset time.
According to one embodiment of present invention, when anti-spilled detection false triggering occurs for the electric cooking pot, the master control
The module control electric cooking pot keeps current heated condition, until the electric cooking pot enters boiling stage.
Specifically, first preset time can be 0-5 seconds, and second preset time can be 5-10 seconds.
According to one embodiment of present invention, second detection module can be by being arranged the upper cover in the electric cooking pot
In temperature sensor to detect the temperature in the electric cooking pot in real time.
In addition, the embodiment of the present invention also proposed a kind of electric cooking pot comprising the anti-spilled event of above-mentioned electric cooking pot
Hinder detection device.
Electricity cooking pot according to the ... of the embodiment of the present invention can be based on electricity culinary art by above-mentioned anti-spilled failure detector
The duration of temperature and the foam detection signal detected in device identifies whether electric cooking pot occurs anti-spilled detection
False triggering, it is ineffective to avoid cooking caused by false triggering, fully meet the use demand of user.
Description of the drawings
Fig. 1 is the flow chart of the anti-spilled fault detection 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-spilled fault detection method of electric cooking pot according to an embodiment of the invention；And
Fig. 9 is the block diagram according to the anti-spilled failure detector 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 it is cooked to describe anti-spilled fault detection method, the electricity of the electric cooking pot of proposition of the embodiment of the present invention
Prepare food device anti-spilled failure detector and electric cooking pot with the anti-spilled failure detector.
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-spilled fault detection method of the electric cooking pot of the embodiment of the present invention.Such as Fig. 1 institutes
Show, the anti-spilled fault detection method of the electricity cooking pot includes the following steps：
S1, after electric cooking pot enters the heating period, the temperature in the electric cooking pot of detection in real time, and detected and filled by foam
Set the steam bubble generated when the electric cooking pot of detection is cooked.
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.
It according to one embodiment of present invention, can be by the way that the temperature sensor in the upper cover of electric cooking pot be arranged with real-time
Temperature in the electric cooking pot of detection.
S2 generates foam detection signal, and obtain the duration of foam detection signal if detecting steam bubble
T。
According to one embodiment of present invention, foam detecting device may be provided in the upper cover of electric cooking pot.It needs to illustrate
, generated steam bubble when electric cooking pot culinary art can be detected by the foam detecting device being arranged in upper cover, i.e.,
When steam bubble touches foam detecting device, triggering foam detecting device detects signal, usual steam bubble to generate foam
Foam has certain duration, if being fluidized state in electric cooking pot, at this moment the duration of steam bubble can be long,
The duration of the foam detection signal then generated also can be elongated；It is only electric if being not in fluidized state in electric cooking pot
When interference foam contacting in cooking pot is to foam detecting device, interfere the duration of foam can be shorter, then the bubble generated
The duration that foam detects signal also can be very short.
Wherein, about foam detecting device detect electric cooking pot generate the process of steam bubble by the following examples into
Row detailed description.
S3 is less than when the duration that foam detects signal less than the Current Temperatures in the first preset time and electric cooking pot
Preset boiling temperature judges that anti-spilled detection false triggering occurs for electric cooking pot.
It should be noted that during electric cooking pot such as electric rice cooker cooking rice, when electric cooker enters heating rank
Duan Hou, the rice water in usual pot will not boil, will not overflow.If detecting that electric cooking pot will overflow at this time
And the steam bubble generated just controls electric cooker and stops heating, can largely effect on culinary art effect, influence the mouthfeel of institute's cooked rice,
And user's inspection electric cooker failure is reresented at this time or is sent and is repaiied, all can cause the process of cooking that can not complete, seriously affect user
Use.
And the anti-spilled fault detection method of the electric cooking pot of the embodiment of the present invention leads in the heating period of electric cooking pot
It crosses the temperature sensor being arranged in upper cover and detects kettle temperature in real time, when foam detecting device detects the steaming that electric cooking pot generates
Steam foam and when triggering, record the duration for continuing triggered time T, that is, foam detection signal, and if kettle temperature be less than it is pre-
If boiling temperature and T be less than the first preset time, so that it may to judge that anti-spilled detection false triggering occurs for electric cooking pot, then control
The electric cooking pot of system keeps current heated condition, continues to cook, completion of normally cooking.Wherein, the first preset time is according to reality
The constant of test definition, such as can be 0-5 seconds.Specifically, in the example of the present invention, the first preset time can be
3 seconds.
Therefore it says, in an embodiment of the present invention, when anti-spilled detection false triggering occurs for electric cooking pot, controls electricity culinary art
Device keeps current heated condition, until electric cooking pot enters boiling stage so that and electric cooking pot completes normal cooking process, to
It avoids cooking ineffective caused by false triggering stops heating, does not interfere with the mouthfeel of cooking food.
According to one embodiment of present invention, when the duration of foam detection signal is more than the second preset time and electricity is cooked
When the Current Temperatures prepared food in device are less than preset boiling temperature, judge that anti-spilled detection failure occurs for electric cooking pot, and control electricity
Cooking pot enters the low-power culinary art pattern of non-spill detection, and after the completion of electric cooking pot is cooked, and controls electric cooking pot hair
Be out of order prompt message, wherein the second preset time is greater than or equal to the first preset time.
Specifically, the second preset time can be 5-10 seconds.Preferably, it can be 9 seconds.
That is, the duration lasts for detecting signal in foam are longer to be greater than the second preset time and electricity culinary art
When Current Temperatures in device are less than preset boiling temperature, so that it may think that foam detecting device breaks down, then control electricity and cook
The low-power culinary art pattern that device such as electric cooker of preparing food enters non-spill detection is cooked, and prompts user to check after the completion of cooking
Or give and repair, to not interfere with cooking process, it can smoothly complete and currently cook, not interfere with the use of user.
Wherein, the low-power culinary art pattern of non-spill detection, which refers to electric cooking pot, does not have anti-spilled detection function and opposite
The lower operating mode of heating power when normal culinary art pattern.Also, since heating power is relatively low, electric culinary art can also be avoided
Device is overflowed in boiling stage.
The anti-spilled fault detection method of the electric cooking pot proposed according to embodiments of the present invention enters heating in electric cooking pot
After stage, the temperature in the electric cooking pot of detection in real time, and the steaming generated when electric cooking pot culinary art is detected by foam detecting device
Steam foam generates foam detection signal, and obtain the duration of foam detection signal if detecting steam bubble, and
The duration that signal is detected in foam is less than preset boiling point less than the Current Temperatures in the first preset time and electric cooking pot
Judge that anti-spilled detection false triggering occurs for electric cooking pot when temperature, avoids controlling electric cooking pot because of anti-spilled detection false triggering
Stop heating, to avoid the culinary art of the electric cooking pot caused by false triggering ineffective so that electric cooking pot fully meets
The use demand of user.
Specifically, in an embodiment of the present invention, foam detecting device 10 is described to steam bubble in conjunction with Fig. 3 a to Fig. 7 b
The detection process of foam.Foam detecting device 10 is arranged in the upper cover of electric cooking pot, and foam detecting device 10 includes at least one
Foam inductive component 101, wherein when each foam inductive component 101 senses the steam bubble that electric cooking pot generates, foam
The capacitance of detection device 10 changes；Detection module includes capacitance detecting chips 20, and capacitance detecting chips 20 are examined with foam
It surveys device 10 to be connected, capacitance detecting chips 20 generate foam inspection by detecting the capacitance variation situation of foam detecting device 10
Signal is surveyed, capacitance detecting chips 20 are connected with main control module 40, and main control module 40 is connected with heating power control module 30, heating
Power control module 30 is used to control the heating power of electric cooking pot, and main control module 40 detects signal according to foam and judges that foam is examined
When the capacitance of survey device 10 changes, judge that spillover will occur for electric cooking pot, and controls electric cooking pot and stop adding
Hot a period of time.
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 judge that the capacitance of foam detecting device 10 does not change, judgement do not overflow；If foam
The capacitance variation amount of detection device 10 is more than predetermined threshold value, then judges that the capacitance of foam detecting device changes, and examine
Spillover will be occurred by measuring 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, continues to heat to which main control module 40 controls heating module 5 by heating power control module 30, in steam
When foam contacting is to the second foam inductive component 101B, the first foam inductive component 101A and the second foam inductive component 101B's
Capacitance changes, and capacitance detecting chips 20 detect that the capacitance variation amount of foam detecting device 10 is Δ C2, Δ C2
More than predetermined threshold value, capacitance detecting chips 20 produce the second foam and detect signal, wherein it is chip that the second foam, which detects signal,
Readable signal such as digital signal, at this time main control module 40 judge that the capacitance of foam detecting device 10 changes, to examine
Spillover will be occurred by measuring 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.
Specifically, in one embodiment of the invention, as shown in figure 8, the anti-overflow inspection of being out of order of above-mentioned electric cooking pot
Survey method includes the following steps：
S10, electric cooking pot such as electric rice cooker cooking food extremely enter the heating period.
S20 obtains kettle temperature in real time, and judges the steaming generated when whether foam detecting device detects electric cooking pot culinary art
Steam foam.If so, executing step S30；If not, return to step S20.
S30 records the time T i.e. duration of foam detection signal for detecting steam bubble and triggering.
S40 judges whether current kettle temperature is less than preset boiling temperature and whether triggered time T is less than first and presets
Such as 3 seconds time.If so, executing step S50；If not, executing step S60.
S50 judges that anti-spilled detection false triggering occurs for electric cooking pot, and controls electric cooking pot and continue to be heated to entering boiling
Stage.
S60 is less than preset boiling temperature in current kettle temperature and triggered time T is more than the second preset time such as 9
When the second, judge that foam detecting device breaks down.
S70 controls the low-power culinary art pattern that electric cooking pot enters non-spill detection.
S80 prompts user to check or send and repaiies after the completion of electric cooking pot is cooked.
In an embodiment of the present invention, electric cooking pot such as electric cooker is above-mentioned by executing during cooking food
Anti-spilled fault detection method, can based in electric cooking pot temperature and foam detect duration of signal and identify
Whether electric cooking pot occurs anti-spilled detection false triggering or anti-spilled detection failure occurs, to avoid caused by false triggering
The culinary art of electric cooking pot is ineffective, and avoids causing to cook impossible hidden danger because of anti-spilled detection failure, fully full
The use demand of sufficient user.
Fig. 9 is the block diagram according to the anti-spilled failure detector of the electric cooking pot of the embodiment of the present invention.Such as Fig. 9
Shown, the anti-spilled failure detector of the electricity cooking pot includes first detection module 1000, the second detection module 2000 and master
Control module 40.
Wherein, first detection module 1000 is used to pass through foam detecting device after the electric cooking pot enters the heating period
The steam bubble generated when the electric cooking pot culinary art is detected, and generates foam detection letter when detecting the steam bubble
Number；Second detection module 2000 is used to after the electric cooking pot enters the heating period detect in real time in the electric cooking pot
Temperature；Main control module 40 is used to obtain the duration that the foam detects signal when receiving foam and detecting signal, and
The duration that signal is detected in the foam is less than in advance less than the Current Temperatures in the first preset time and the electric cooking pot
If boiling temperature when judge that anti-spilled detection false triggering occurs for the electric cooking pot.
In one embodiment of the invention, first detection module 1000 may include capacitance detecting chips, and foam is examined
Device is surveyed to may be provided in the upper cover of electric cooking pot.
According to one embodiment of present invention, when the foam detect signal duration be more than the second preset time and
When Current Temperatures in the electricity cooking pot are less than the preset boiling temperature, main control module 40 judges the electric cooking pot hair
Biological and ecological methods to prevent plant disease, pests, and erosion overflow checking failure, and the low-power culinary art pattern that the electric cooking pot enters non-spill detection is controlled, and described
After the completion of electric cooking pot culinary art, electric cooking pot described in the master control module controls sends out fault cues information, wherein described second
Preset time is greater than or equal to first preset time.
Wherein, the first preset time is the constant defined according to actual test, such as can be 0-5 seconds.Specifically, at this
In one example of invention, the first preset time can be 3 seconds.Also, the second preset time can be 5-10 seconds, it is preferable that
It can be 9 seconds.
That is, the duration lasts for detecting signal in foam are longer to be greater than the second preset time and electricity culinary art
When Current Temperatures in device are less than preset boiling temperature, so that it may think that foam detecting device breaks down, then main control module
The low-power culinary art pattern that the electric cooking pot such as electric cooker of control enters non-spill detection is cooked, and is prompted after the completion of cooking
User checks or send and repaiies, and to not interfere with cooking process, can smoothly complete and currently cook, not interfere with the use of user.
Wherein, the low-power culinary art pattern of non-spill detection, which refers to electric cooking pot, does not have anti-spilled detection function and opposite
The lower operating mode of heating power when normal culinary art pattern.Also, since heating power is relatively low, electric culinary art can also be avoided
Device is overflowed in boiling stage.
In an embodiment of the present invention, when anti-spilled detection false triggering occurs for the electric cooking pot, the main control module
It controls the electric cooking pot and keeps current heated condition, until the electric cooking pot enters boiling stage so that electric cooking pot is complete
It is ineffective to avoid cooking caused by false triggering stops heating at normal cooking process, do not interfere with cooking food
Mouthfeel.
According to one embodiment of present invention, the second detection module 2000 can be by being arranged the upper cover in the electric cooking pot
In temperature sensor to detect the temperature in the electric cooking pot in real time.
The anti-spilled failure detector of the electric cooking pot proposed according to embodiments of the present invention enters heating in electric cooking pot
After stage, the temperature in electric cooking pot is detected in real time by the second detection module, and first detection module is detected by foam
The steam bubble that device detection electric cooking pot generates when cooking, and generate foam when detecting steam bubble and detect signal, such as
Fruit main control module receives foam detection signal, then obtains the duration of foam detection signal, and detect signal in foam
The Current Temperatures that duration is less than in the first preset time and electric cooking pot judge electricity culinary art when being less than preset boiling temperature
Anti-spilled detection false triggering occurs for device, avoids controlling electric cooking pot stopping heating because of anti-spilled detection false triggering, to keep away
The culinary art for exempting from the electric cooking pot caused by false triggering is ineffective so that electric cooking pot fully meets the use demand of user.
In addition, the embodiment of the present invention also proposed a kind of electric cooking pot comprising the anti-spilled event of above-mentioned electric cooking pot
Hinder detection device.
Electricity cooking pot according to the ... of the embodiment of the present invention can be based on electricity culinary art by above-mentioned anti-spilled failure detector
The duration of temperature and the foam detection signal detected in device identifies whether electric cooking pot occurs anti-spilled detection
False triggering, it is ineffective to avoid cooking caused by false triggering, fully meet the use demand 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-spilled fault detection method of electricity cooking pot, which is characterized in that include the following steps：
After the electric cooking pot enters the heating period, the temperature in the electric cooking pot is detected in real time, and detect by foam
Device detects the steam bubble generated when the electric cooking pot culinary art；
If detecting the steam bubble, generate foam detection signal, and obtain foam detection signal it is lasting when
Between；
It is small less than the Current Temperatures in the first preset time and the electric cooking pot when the duration that the foam detects signal
In preset boiling temperature, judge that anti-spilled detection false triggering occurs for the electric cooking pot.
2. the anti-spilled fault detection method of electricity cooking pot as described in claim 1, which is characterized in that when the foam detects
The Current Temperatures that the duration of signal is more than in the second preset time and the electric cooking pot are less than the preset boiling point temperature
When spending, judge that anti-spilled detection failure occurs for the electric cooking pot, and controls the electric cooking pot and enter the low of non-spill detection
Power cooks pattern, and after the completion of the electric cooking pot culinary art, controls the electric cooking pot and sends out fault cues information,
In, second preset time is greater than or equal to first preset time.
3. the anti-spilled fault detection method of electricity cooking pot as claimed in claim 1 or 2, which is characterized in that when the electricity is cooked
It when anti-spilled detection false triggering occurs for device of preparing food, controls the electric cooking pot and keeps current heated condition, until the electric cooking pot
Into boiling stage.
4. the anti-spilled fault detection method of electricity cooking pot as claimed in claim 2, which is characterized in that it is described first it is default when
Between be 0-5 second, second preset time be 5-10 seconds.
5. the anti-spilled fault detection method of electricity cooking pot as described in claim 1, which is characterized in that by being arranged described
Temperature sensor in the upper cover of electric cooking pot to detect the temperature in the electric cooking pot in real time.
6. a kind of anti-spilled failure detector of electricity cooking pot, which is characterized in that including first detection module, the second detection mould
Block and main control module, wherein
Described in the first detection module is used to after the electric cooking pot enters the heating period detect by foam detecting device
The steam bubble generated when electric cooking pot culinary art, and generate foam when detecting the steam bubble and detect signal；
Second detection module is used to detect the electric cooking pot in real time after the electric cooking pot enters the heating period
Interior temperature；
The main control module is used to obtain the duration that the foam detects signal when receiving the foam and detecting signal,
And the Current Temperatures that the duration that signal is detected in the foam is less than in the first preset time and the electric cooking pot are less than
Judge that anti-spilled detection false triggering occurs for the electric cooking pot when preset boiling temperature.
7. the anti-spilled failure detector of electricity cooking pot as claimed in claim 6, which is characterized in that when the foam detects
The Current Temperatures that the duration of signal is more than in the second preset time and the electric cooking pot are less than the preset boiling point temperature
When spending, anti-spilled detection failure occurs for electric cooking pot described in the master control module judges, and controls the electric cooking pot and enter nothing
The low-power of overflow checking cooks pattern, and after the completion of the electric cooking pot culinary art, electricity described in the master control module controls
Cooking pot sends out fault cues information, wherein second preset time is greater than or equal to first preset time.
8. the anti-spilled failure detector of electric cooking pot as claimed in claims 6 or 7, which is characterized in that when the electricity is cooked
When anti-spilled detection false triggering occurs for device of preparing food, electric cooking pot described in the master control module controls keeps current heated condition, until
The electricity cooking pot enters boiling stage.
9. the anti-spilled failure detector of electricity cooking pot as claimed in claim 7, which is characterized in that it is described first it is default when
Between be 0-5 second, second preset time be 5-10 seconds.
10. the anti-spilled failure detector of electricity cooking pot as claimed in claim 7, which is characterized in that second detection
Module is by being arranged the temperature sensor in the upper cover of the electric cooking pot to detect the temperature in the electric cooking pot in real time.
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
Be out of order detection device.
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| CN201710035298.3A CN108309036B (en) | 2017-01-18 | 2017-01-18 | Electric cooker, anti-overflow fault detection device and anti-overflow fault detection method thereof |
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|---|---|---|---|
| CN201710035298.3A CN108309036B (en) | 2017-01-18 | 2017-01-18 | Electric cooker, anti-overflow fault detection device and anti-overflow fault detection method thereof |
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| CN111134528A (en) * | 2018-11-06 | 2020-05-12 | 佛山市顺德区美的电热电器制造有限公司 | Heating control method, heating control device, storage medium, and liquid heating container |
| CN111214111A (en) * | 2018-11-23 | 2020-06-02 | 浙江苏泊尔家电制造有限公司 | Cooking utensil, anti-overflow method and cooking method |
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| CN108309036B (en) | 2021-04-20 |
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