CN106291311B - The fault detection method and control method of electric cooking pot and its anti-spilled detection circuit - Google Patents
The fault detection method and control method of electric cooking pot and its anti-spilled detection circuit Download PDFInfo
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- CN106291311B CN106291311B CN201510283715.7A CN201510283715A CN106291311B CN 106291311 B CN106291311 B CN 106291311B CN 201510283715 A CN201510283715 A CN 201510283715A CN 106291311 B CN106291311 B CN 106291311B
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Abstract
The invention discloses a kind of electric cooking pot and its fault detection method and control method of anti-spilled detection circuit, the fault detection method is the following steps are included: judging the current state of the electric cooking pot and detecting whether the anti-spilled detection circuit has output fault-signal；If the current state is standby mode and the fault-signal for persistently receiving the anti-spilled detection circuit output in the first preset time T 1, judge that the anti-spilled detection circuit breaks down；If the duration that the current state was in working condition and received the fault-signal of the anti-spilled detection circuit output is greater than the second preset time T 2, then judge that the anti-spilled detection circuit breaks down, wherein, second preset time T 2 is greater than first preset time T 1.Thereby, it is possible to detect whether anti-spilled detection circuit breaks down automatically according to the operating status of electric cooking pot, it is ensured that electric cooking pot is normally carried out culinary art, promotes the experience of user.
Description
Technical field
The present invention relates to technical field of electric appliances, in particular to the fault detection of anti-spilled detection circuit in a kind of electric cooking pot
Method, a kind of control method of electric cooking pot and a kind of electric cooking pot.
Background technique
It is anti-spilled when anti-spilled detection circuit breaks down in the relevant electric cooking pot with spillage-proof function
Disabler may result in the serious consequence of electric cooking pot cisco unity malfunction.But the relevant technologies can not judge it is anti-spilled
Detection circuit whether failure.
In addition, in the related art, when anti-spilled detection circuit breaks down, electric cooking pot is without corresponding parameter
Adjustment, electric cooking pot can not work on, to seriously affect normal culinary art effect and subsequent use.
To sum up, the relevant technologies needs improve.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention
One purpose is to propose a kind of fault detection method of anti-spilled detection circuit in electric cooking pot, and this method can automatically detect
Whether anti-spilled detection circuit breaks down.
It is another object of the present invention to the control methods for proposing a kind of electric cooking pot.A further object of the present invention exists
In proposing a kind of electric cooking pot.
In order to achieve the above objectives, one aspect of the present invention embodiment proposes anti-spilled detection circuit in a kind of electric cooking pot
Fault detection method, comprising the following steps: judge the current state of the electric cooking pot and detect the anti-spilled detection circuit
Whether output fault-signal is had；If the current state persistently receives institute for standby mode and in the first preset time T 1
The fault-signal for stating anti-spilled detection circuit output then judges that the anti-spilled detection circuit breaks down；If described current
It is default that the duration that state was in working condition and received the fault-signal of the anti-spilled detection circuit output is greater than second
Time T2 then judges that the anti-spilled detection circuit breaks down, wherein it is pre- that second preset time T 2 is greater than described first
If time T1.
The fault detection method of anti-spilled detection circuit in the electric cooking pot proposed according to embodiments of the present invention, if currently
State is standby mode and the fault-signal that anti-spilled detection circuit output is persistently received in the first preset time, then judges
Anti-spilled detection circuit breaks down；If current state is in working condition and receives the failure of anti-spilled detection circuit output
The duration of signal is greater than the second preset time, then judges that anti-spilled detection circuit breaks down.The fault detection side as a result,
Method can detect automatically whether anti-spilled detection circuit breaks down according to the operating status of electric cooking pot, it is ensured that electric cooking pot is just
It is often cooked, promotes the experience of user.
According to some embodiments of the present invention, 1 range of the first preset time T is 20s >=T1 >=5s.
According to some embodiments of the present invention, 2 range of the second preset time T is 300s >=T2 >=100s.
According to some embodiments of the present invention, when the current state is the standby mode, if not receiving institute
The fault-signal for stating anti-spilled detection circuit output or the duration for receiving the fault-signal are less than or equal to described first
Preset time T 1 then judges that the anti-spilled detection circuit is in normal condition；When the current state is the working condition
When, if not receiving the fault-signal of the anti-spilled detection circuit output, or receive the anti-spilled detection circuit
The duration of the fault-signal of output is less than or equal to second preset time T 2, then judges at the anti-spilled detection circuit
In the normal condition.
Specifically, according to some embodiments of the present invention, the fault-signal can be low and high level energizing signal.
Further, according to some embodiments of the present invention, in the electric cooking pot anti-spilled detection circuit failure
Detection method further include: when judging that the anti-spilled detection circuit breaks down, issue warning note.
In order to achieve the above objectives, another aspect of the present invention embodiment proposes a kind of control method of electric cooking pot, including
Following steps: the fault detection method is executed to judge whether the anti-spilled detection circuit breaks down；When described anti-
When overflow detection circuit breaks down, if the current state of the electricity cooking pot is in working condition, further determine whether
It completes to identify the culinary art type of the electric cooking pot；If the identification to the culinary art type is completed, according to
The corresponding culinary art parameter of culinary art type controls the electric cooking pot；If not completing the identification to the culinary art type,
Then the electric cooking pot is controlled according to preset heating power.
The control method of the electric cooking pot proposed according to embodiments of the present invention, when anti-spilled detection circuit breaks down,
If the current state of electric cooking pot is in working condition, further determine whether to complete to carry out the culinary art type of electric cooking pot
Identification controls electric cooking pot according to the corresponding culinary art parameter of culinary art type if completing the identification to culinary art type,
If not completing the identification to culinary art type, electric cooking pot is controlled according to preset heating power.As a result, anti-overflow
When detection circuit breaks down out, culinary art parameter can be adjusted as the case may be, guarantee electric cooking pot in failure still into
Row work, it is ensured that the culinary art effect of electric cooking pot promotes the experience of user.
According to some embodiments of the present invention, the culinary art type may include cooking congee, Baoshang and cooking.
In order to achieve the above objectives, the present invention has a kind of electric cooking pot that one side embodiment proposes, comprising: anti-spilled detection
Circuit, the anti-spilled detection circuit is for detecting whether the electric cooking pot overflows；Control module, the control module
For judging the current state of the electric cooking pot and detecting whether the anti-spilled detection circuit has output fault-signal, if
The current state is standby mode and persistently receives the anti-spilled detection circuit output in the first preset time T 1
Fault-signal, then the control module judges that the anti-spilled detection circuit breaks down, if the current state is work
The state and duration of fault-signal for receiving the anti-spilled detection circuit output is greater than the second preset time T 2, then institute
It states control module and judges that the anti-spilled detection circuit breaks down, wherein second preset time T 2 is greater than described first
Preset time T 1.
The electric cooking pot proposed according to embodiments of the present invention, if current state is for standby mode and in the first preset time
The fault-signal of anti-spilled detection circuit output is inside persistently received, then control module goes out detection circuit failure；If worked as
The duration that preceding state was in working condition and received the fault-signal of anti-spilled detection circuit output be greater than second it is default when
Between, then control module judges that anti-spilled detection circuit breaks down.The electricity cooking pot can be according to the operation of electric cooking pot as a result,
State detects whether anti-spilled detection circuit breaks down automatically, it is ensured that electric cooking pot is normally carried out culinary art, promotes the body of user
It tests.
According to some embodiments of the present invention, when the current state is the standby mode, if not receiving institute
It is default that the fault-signal for stating anti-spilled detection circuit output or the duration for receiving the fault-signal are less than described first
Time T1, then the control module judges that the anti-spilled detection circuit is in normal condition；When the current state is described
When working condition, if not receiving the fault-signal of the anti-spilled detection circuit output or receiving the anti-spilled detection
The duration of the fault-signal of circuit output is less than or equal to second preset time T 2, then described in the control module judgement
Anti-spilled detection circuit is in the normal condition.
Specifically, according to some embodiments of the present invention, the fault-signal can be low and high level energizing signal.
Further, according to some embodiments of the present invention, the electric cooking pot further include: alarm module, the report
Alert module is connected with the control module, wherein the control module is when judging that the anti-spilled detection circuit breaks down
It controls the alarm module and issues warning note.
According to some embodiments of the present invention, when the anti-spilled detection circuit breaks down, if the electricity culinary art
The current state of device is in working condition, then the control module further determines whether to complete the culinary art class to the electric cooking pot
Type is identified；If completing the identification to the culinary art type, the control module is corresponding according to the culinary art type
Culinary art parameter controls the electric cooking pot；If not completing the identification to the culinary art type, the control module
The electric cooking pot is controlled according to preset heating power.
As a result, when anti-spilled detection circuit breaks down, culinary art parameter can be adjusted as the case may be, guarantees that electricity is cooked
Device of preparing food still works in failure, it is ensured that the culinary art effect of electric cooking pot promotes the experience of user.
According to some embodiments of the present invention, the culinary art type may include cooking congee, Baoshang and cooking.
According to some embodiments of the present invention, the anti-spilled detection circuit includes: first electrode and second electrode；For
Carry out the first transformer and the second transformer and output unit of isolation transformation, the primary side of first transformer with exchange
Power supply be connected, one end of the secondary side of first transformer is connected with the first electrode, second transformer it is primary
One end of side is connected with the second electrode, and the two of the other end of the primary side of second transformer and first transformer
The other end of secondary side is connected, and the secondary side of second transformer is connected with the output unit, wherein overflows when having
When, short circuit conducting between the first electrode and second electrode, the output unit exports overflow checking signal.
Detailed description of the invention
Fig. 1 is the process of the fault detection method of anti-spilled detection circuit in electric cooking pot according to an embodiment of the present invention
Figure；
Fig. 2 is the circuit diagram of anti-spilled detection circuit in electric cooking pot in accordance with a preferred embodiment of the present invention；
Fig. 3 is the stream of the fault detection method of anti-spilled detection circuit in electric cooking pot according to an embodiment of the invention
Cheng Tu；
Fig. 4 is the flow chart of the control method of electric cooking pot according to an embodiment of the present invention；
Fig. 5 is the flow chart of the control method of electric cooking pot according to an embodiment of the invention；
Fig. 6 is the block diagram of electric cooking pot according to an embodiment of the present invention；And
Fig. 7 is the block diagram of electric cooking pot according to an embodiment of the invention.
Appended drawing reference:
First electrode DZ1, second electrode DZ2, the first transformer 11, the second transformer 12, output unit 13, anti-spilled inspection
Slowdown monitoring circuit 10, control module 20 and alarm module 30.
Specific embodiment
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 is used to explain the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings the failure of anti-spilled detection circuit is examined in the electric cooking pot to describe proposition of the embodiment of the present invention
Survey method, the control method of electric cooking pot and the electric cooking pot for executing the above method.
Fig. 1 is the process of the fault detection method of anti-spilled detection circuit in electric cooking pot according to an embodiment of the present invention
Figure.
According to a preferred embodiment of the present invention, anti-spilled detection circuit can be as shown in Fig. 2, anti-spilled detection circuit be used
It may include first electrode DZ1, second electrode DZ2, the first transformer 11, second in judging whether electric cooking pot overflows
Transformer 12 and output unit 13.Wherein, for carrying out isolation transformation, first becomes for the first transformer 11 and the second transformer 12
The primary side of depressor 11 is connected with AC power source AC, and one end of the secondary side of the first transformer 11 is connected with first electrode DZ1, the
One end of the primary side of two transformers 12 is connected with second electrode DZ2, the other end and first of the primary side of the second transformer 12
The other end of the secondary side of transformer 11 is connected, and the secondary side of the second transformer 12 is connected with output unit 13, wherein excessive when having
When occurring out, short circuit conducting between first electrode DZ1 and second electrode DZ2, output unit 13 exports overflow checking signal.
Specifically, when anhydrous, thin rice gruel or foam rise or overflow in electric cooking pot, the electricity of first electrode DZ1 and second
Pole DZ2 is in open-circuit condition, and the circuit of anti-spilled detection circuit disconnects, then the triode Q1 in output unit 13 is in cut-off shape
State, the voltage of triode Q1 collector are high level voltage, i.e., the output end out of anti-spilled detection circuit exports high level.?
When having water, thin rice gruel or foam to rise or overflow in electric cooking pot, first electrode DZ1 and second electrode DZ2 are in short-circuit condition, prevent
Overflow detection circuit forms access, then triode Q1 is in the conductive state, and the voltage of triode Q1 collector is low level voltage,
The output end out of i.e. anti-spilled detection circuit exports low level.Preferably, high level voltage can be+5V, and low level voltage can be
0V。
In anti-spilled detection circuit failure, the serious consequence of electric cooking pot cisco unity malfunction may result in.It is based on
This, the embodiment of the present invention proposes a kind of fault detection method of anti-spilled detection circuit in electric cooking pot.
As shown in Figure 1, it is according to an embodiment of the present invention electricity cooking pot in anti-spilled detection circuit fault detection method packet
Include following steps:
S1: judge the current state of electric cooking pot and detect whether anti-spilled detection circuit has output fault-signal.
Wherein, current state may include standby mode and working condition.In the standby state, the heating module of electric cooking pot
It is constantly in stop working state.In other words, electric cooking pot will not execute cooking process in the standby state.In working condition
Under, the heating module of electric cooking pot works according to the corresponding culinary art parameter of cooking process.
S2: if current state is standby mode and persistently receives anti-spilled detection circuit in the first preset time T 1
The fault-signal of output then judges that anti-spilled detection circuit breaks down.
S3: if current state be in working condition and receive the fault-signal of anti-spilled detection circuit output it is lasting when
Between be greater than the second preset time T 2, then judge that anti-spilled detection circuit breaks down, wherein the second preset time T 2 is greater than first
Preset time T 1.
That is, whether electric cooking pot can judge anti-spilled detection circuit according to the signal that anti-spilled detection circuit exports
It breaks down.
Specifically, in the electric cooking pot course of work, if detecting that anti-spilled detection circuit has output fault-signal,
Then start recording receives the duration of fault-signal, and according to the current shape of the duration of fault-signal and electric cooking pot
State carries out fault comprehensive judgement.When electric cooking pot is in standby, if the duration for receiving fault-signal is more than
First preset time T 1, then it represents that anti-spilled detection circuit breaks down；When electric cooking pot is in running order, if received
Duration to fault-signal is more than the second preset time T 2, then it represents that anti-spilled detection circuit breaks down.
This method can detect automatically whether anti-spilled detection circuit occurs event according to the operating status of electric cooking pot as a result,
Barrier, it is ensured that electric cooking pot is normally carried out culinary art, promotes the experience of user.
A specific embodiment according to the present invention, 1 range of the first preset time T can be 20s >=T1 >=5s.Second is default
Time T2 range can be 300s >=T2 >=100s.
Further, according to one embodiment of present invention, when current state is standby mode, if do not received anti-
The fault-signal of overflow detection circuit output or the duration for receiving fault-signal are less than or equal to the first preset time T 1, then
Judge that anti-spilled detection circuit is in normal condition；When current state is in working condition, if not receiving anti-spilled detection
The fault-signal of circuit output, or receive duration of the fault-signal of anti-spilled detection circuit output and be less than or equal to the
Two preset time Ts 2 then judge that anti-spilled detection circuit is in normal condition.
That is, if not receiving fault-signal, judging anti-spilled detection electricity in the electric cooking pot course of work
Road is in normal condition, i.e., anti-spilled detection circuit can normally judge whether electric cooking pot overflows.Alternatively, if receiving
Fault-signal, then duration of start recording fault-signal, and working as according to the duration of fault-signal and electric cooking pot
Preceding state carries out fault comprehensive judgement, in other words, when electric cooking pot is in standby, if the duration of fault-signal is small
In equal to the first preset time T 1, then it represents that anti-spilled detection circuit is in normal condition, i.e., anti-spilled detection circuit can be normal
Judge whether electric cooking pot overflows, it is without failure；When electric cooking pot is in running order, if fault-signal is held
The continuous time is less than or equal to the second preset time T 2, then it represents that anti-spilled detection circuit is in normal condition, i.e., anti-spilled detection electricity
Road can normally judge whether electric cooking pot overflows, without failure.
Specifically, as shown in figure 3, the failure of anti-spilled detection circuit is examined in electricity cooking pot according to an embodiment of the present invention
Survey method specifically includes the following steps:
S101: record receives the duration of fault-signal.
S102: whether the current state for judging electric cooking pot is standby mode.
If so, thening follow the steps S103；If it is not, then being in working condition, step S104 is executed.
S103: whether the duration that judgement receives fault-signal is greater than the first preset time T 1.
If so, thening follow the steps S105；If not, thening follow the steps S106.
S104: whether the duration that judgement receives fault-signal is greater than the second preset time T 2.
If so, thening follow the steps S105；If not, thening follow the steps S107.
S105: anti-spilled detection circuit breaks down.
S106: anti-spilled detection circuit is in normal condition.
S107: anti-spilled detection circuit is in normal condition.
According to a preferred embodiment of the present invention, fault-signal can be low and high level energizing signal.It is understood that
Fault-signal can also be pulse signal.
In addition, according to one embodiment of present invention, in electric cooking pot, the fault detection method of anti-spilled detection circuit is also
It include: to issue warning note when judging that anti-spilled detection circuit breaks down.
That is, electric cooking pot can issue warning note immediately, if anti-spilled detection circuit breaks down to mention
Before notify that user pays attention to this failure, and use other culinary art types.
A specific example according to the present invention can issue the user with warning note by indicator light and/or buzzer.
In conclusion in the electric cooking pot proposed according to embodiments of the present invention anti-spilled detection circuit fault detection side
Method, if current state is standby mode and the failure for persistently receiving anti-spilled detection circuit output in the first preset time
Signal then judges that anti-spilled detection circuit breaks down；If current state is in working condition and receives anti-spilled detection electricity
The duration of the fault-signal of road output is greater than the second preset time T 2, then judges that anti-spilled detection circuit breaks down.By
This, which can detect automatically whether anti-spilled detection circuit occurs event according to the operating status of electric cooking pot
Barrier, it is ensured that electric cooking pot is normally carried out culinary art, promotes the experience of user.
After judging that anti-spilled detection circuit breaks down through the foregoing embodiment, the embodiment of the present invention also passes through following
Control method controls the cooking process of electric cooking pot.
Fig. 4 is the flow chart of the control method of electric cooking pot according to an embodiment of the present invention.As shown in figure 4, the controlling party
Method the following steps are included:
S10: the fault detection method of above-described embodiment is executed to judge whether anti-spilled detection circuit breaks down.
S20: when anti-spilled detection circuit breaks down, if the current state of electric cooking pot is in working condition, into
One step judges whether to complete to identify the culinary art type of electric cooking pot.
A specific embodiment according to the present invention, culinary art type may include cooking congee, Baoshang and cooking.
S30: if completing the identification to culinary art type, according to the corresponding culinary art parameter of culinary art type to electric cooking pot into
Row control.
Wherein it is possible to understand, difference culinary art type corresponds to different culinary art parameters, and every kind of culinary art type is corresponding to cook
Parameter of preparing food is storable in the control module of electric cooking pot, and after user selects a certain culinary art module, control module is adjustable
Corresponding culinary art parameter is taken to control electric cooking pot.
It should be noted that culinary art parameter may include heating power and heating time etc..
S40: if not completing the identification to culinary art type, electric cooking pot is controlled according to preset heating power
System.
That is, when anti-spilled detection circuit breaks down, electric cooking pot is still cooked, and electric cooking pot
Culinary art parameter can be selected as the case may be.
Specifically, if it find that anti-spilled detection circuit breaks down, then knowing immediately in the electric cooking pot course of work
The culinary art type of not electric cooking pot if having had identified culinary art type at this time, such as cooks congee, Baoshang or cooks, then electricity is cooked
Device of preparing food is run according to set culinary art parameter setting；Before if the unidentified type of culinary art out occurs for failure, by heating power
It is changed to preset heating power, and controls electric cooking pot and is worked with preset heating power, to prevent accident.
As a result, when anti-spilled detection circuit breaks down, culinary art parameter can be adjusted as the case may be, guarantees that electricity is cooked
Device of preparing food still works in failure, it is ensured that the culinary art effect of electric cooking pot promotes the experience of user.
According to one embodiment of present invention, the control method of electric cooking pot further include: judging anti-spilled detection circuit
When failure, warning note is issued.
That is, if anti-spilled detection circuit breaks down, while controlling electric cooking pot immediately
Warning note is issued the user with, this failure is paid attention to prior notice user, cooks mode using other.
A specific example according to the present invention can issue the user with warning note by indicator light and/or buzzer.
In addition, according to one embodiment of present invention, after anti-spilled detection circuit breaks down, electric cooking pot is under
Be directly entered when one action it is anti-spilled other than other culinary art types, that is, do not need the culinary art class of anti-spilled detection circuit work
Type.
Specifically, as shown in figure 5, the control method of electricity cooking pot according to an embodiment of the present invention specifically includes following step
It is rapid:
S111: anti-spilled detection circuit breaks down.
S112: judge whether to complete the culinary art type identification to electric cooking pot.
If so, thening follow the steps S113；If not, thening follow the steps S114.
S113: running according to set culinary art parameter setting, executes step S115.
S114: heating power is changed to preset heating power.
S115: warning note is issued the user with.
S116: enter other culinary art types when next task.
In conclusion the control method of the electric cooking pot proposed according to embodiments of the present invention, when anti-spilled detection circuit goes out
When existing failure, if the current state of electric cooking pot is in working condition, further determine whether to complete to cook electric cooking pot
Type of preparing food is identified, if completing the identification to culinary art type, is cooked according to the corresponding culinary art parameter of culinary art type to electricity
Device is controlled, if not completing the identification to culinary art type, is controlled according to preset heating power electric cooking pot.
As a result, when anti-spilled detection circuit breaks down, culinary art parameter can be adjusted as the case may be, guarantee electric cooking pot in event
It still works when barrier, it is ensured that the culinary art effect of electric cooking pot promotes the experience of user.
To realize above-described embodiment, the invention also provides a kind of electric cooking pots.
Fig. 6 is the block diagram of electric cooking pot according to an embodiment of the present invention.As shown in fig. 6, the electricity cooking pot includes:
Anti-spilled detection circuit 10 and control module 20.
Wherein, anti-spilled detection circuit 10 is for detecting whether electric cooking pot overflows.Specifically, as shown in Fig. 2, it is anti-
Overflow detection circuit 10 includes: first electrode DZ1, second electrode DZ2, the first transformer 11, the second transformer 12 and output
Unit 13.Wherein, the first transformer 11 and the second transformer 12 be for carrying out isolation transformation, the primary side of the first transformer 11 with
AC power source AC be connected, one end of the secondary side of the first transformer 11 is connected with first electrode DZ1, the second transformer 12 it is primary
One end of side is connected with second electrode DZ2, the secondary side of the other end of the primary side of the second transformer 12 and the first transformer 11
The other end be connected, the secondary side of the second transformer 12 is connected with output unit 13, wherein when having, when overflowing generation, first is electric
Short circuit conducting between pole DZ1 and second electrode DZ2, output unit 13 export overflow checking signal.
Control module 20 is used to judge the current state of electric cooking pot and detects whether anti-spilled detection circuit 10 has output
Fault-signal, if current state is standby mode and persistently receives anti-spilled detection circuit 10 in the first preset time T 1
The fault-signal of output, then control module 20 judges that anti-spilled detection circuit 10 breaks down, if current state is work shape
The state and duration for receiving the fault-signal that anti-spilled detection circuit 10 exports is greater than the second preset time T 2, then control mould
Block 20 judges that anti-spilled detection circuit 10 breaks down, wherein the second preset time T 2 is greater than the first preset time T 1.Namely
It says, electric cooking pot can judge whether anti-spilled detection circuit 10 breaks down according to the signal that anti-spilled detection circuit 10 exports.
Wherein it is possible to understand, current state may include standby mode and working condition.In the standby state, electricity is cooked
The heating module of device of preparing food is constantly in stop working state.In other words, electric cooking pot will not execute culinary art journey in the standby state
Sequence.In the operating condition, the heating module of electric cooking pot works according to the corresponding culinary art parameter of cooking process.
Specifically, in the electric cooking pot course of work, if control module 20 detects that anti-spilled detection circuit 10 has
Fault-signal is exported, then 20 start recording of control module receives the duration of fault-signal, and holding according to fault-signal
The current state of continuous time and electric cooking pot carries out fault comprehensive judgement.When electric cooking pot is in standby, if control
The duration that module 20 receives fault-signal is more than the first preset time T 1, then it represents that event occurs in anti-spilled detection circuit
Barrier；When electric cooking pot is in running order, if the duration that control module 20 receives fault-signal is more than second pre-
If time T2, then it represents that anti-spilled detection circuit breaks down.
The electricity cooking pot can detect automatically whether anti-spilled detection circuit is sent out according to the operating status of electric cooking pot as a result,
Raw failure, it is ensured that electric cooking pot is normally carried out culinary art, promotes the experience of user.
A specific embodiment according to the present invention, 1 range of the first preset time T can be 20s >=T1 >=5s.Second is default
Time T2 range can be 300s >=T2 >=100s.
Further, according to one embodiment of present invention, when current state is standby mode, if do not received anti-
The fault-signal of the output of overflow detection circuit 10 or the duration for receiving fault-signal are less than or equal to the first preset time T 1,
Then control module 20 judges that anti-spilled detection circuit 10 is in normal condition；When current state is in working condition, if do not connect
The fault-signal that anti-spilled detection circuit 10 exports is received, or receives the fault-signal that anti-spilled detection circuit 10 exports
Duration is less than or equal to the second preset time T 2, then control module 20 judges that anti-spilled detection circuit 10 is in normal condition.
That is, if control module 20 does not receive fault-signal, starting to remember in the electric cooking pot course of work
Record receives the duration of fault-signal, and carries out event according to the current state of the duration of fault-signal and electric cooking pot
Hinder comprehensive judgement, in other words, when electric cooking pot is in standby, if the duration of fault-signal is less than or equal to first in advance
If time T1, then it represents that anti-spilled detection circuit 10 is in normal condition, i.e., anti-spilled detection circuit 10 can normally judge that electricity is cooked
Whether device of preparing food overflows, without failure；When electric cooking pot is in running order, if the duration of fault-signal is small
In equal to the second preset time T 2, then it represents that anti-spilled detection circuit is in normal condition, i.e., anti-spilled detection circuit 10 can be just
Often judge whether electric cooking pot overflows, it is without failure.
According to a preferred embodiment of the present invention, fault-signal can be low and high level energizing signal.It is understood that
Fault-signal can also be pulse signal.
In addition, according to one embodiment of present invention, as shown in fig. 7, electric cooking pot further include: alarm module 30.Alarm
Module 30 is connected with control module 20, wherein the control report when judging that anti-spilled detection circuit 10 breaks down of control module 20
Alert module 30 issues warning note.
That is, control module 30 controls alarm module 40 immediately if anti-spilled detection circuit 10 breaks down
Warning note is issued, this failure is paid attention to prior notice user, and use other culinary art types.
A specific example according to the present invention, alarm module 40 can be indicator light and/or buzzer.
According to another embodiment of the invention, when anti-spilled detection circuit 10 breaks down, if electric cooking pot
Current state is in working condition, then control module 20 further determines whether to complete to know the culinary art type of electric cooking pot
Not；If completing the identification to culinary art type, control module 20 is according to the corresponding culinary art parameter of culinary art type to electric cooking pot
It is controlled；If not completing the identification to culinary art type, control module 20 is according to preset heating power to electric cooking pot
It is controlled.That is, electric cooking pot is still cooked, and is controlled when anti-spilled detection circuit 20 breaks down
Module 20 can select culinary art parameter to control electric cooking pot as the case may be.
A specific embodiment according to the present invention, culinary art type may include cooking congee, Baoshang and cooking.
Wherein it is possible to understand, difference culinary art type corresponds to different culinary art parameters, and every kind of culinary art type is corresponding to cook
Parameter of preparing food is storable in control module 20, and after user selects a certain culinary art module, control module 20 can be transferred accordingly
Culinary art parameter electric cooking pot controlled.
It should be noted that culinary art parameter may include heating power and heating time etc..
Specifically, in the electric cooking pot course of work, if control module 20 judges that anti-spilled detection circuit 10 occurs
Failure, then control module 20 identifies the culinary art type of electric cooking pot immediately, if culinary art type has been had identified at this time, such as
It cooks congee, Baoshang or cook, then control module 20 controls electric cooking pot according to set culinary art parameter setting；If failure
Before the unidentified type of culinary art out occurs, then heating power is changed to preset heating power by control module 20, and is controlled electricity and cooked
Device of preparing food is worked with preset heating power, to prevent accident.
As a result, when anti-spilled detection circuit breaks down, culinary art parameter can be adjusted as the case may be, guarantees that electricity is cooked
Device of preparing food still works in failure, it is ensured that the culinary art effect of electric cooking pot promotes the experience of user.
In conclusion the electric cooking pot proposed according to embodiments of the present invention, if current state is standby mode and the
The fault-signal of anti-spilled detection circuit output is persistently received in one preset time, then control module goes out detection circuit appearance event
Barrier；If the duration that current state was in working condition and received the fault-signal of anti-spilled detection circuit output is greater than the
Two preset times, then control module judges that anti-spilled detection circuit breaks down.The electricity cooking pot can be cooked according to electricity as a result,
The operating status of device detects whether anti-spilled detection circuit breaks down automatically, also, breaks down in anti-spilled detection circuit
When, culinary art parameter can be adjusted as the case may be, guarantee that electric cooking pot still works in failure, it is ensured that electric cooking pot
Culinary art effect, promote the experience 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 the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting 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；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
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 in the second feature " on " or " down " can be with
It is that the first and second features directly 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
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height 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 embodiment or examples.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, modifies, replacement and variant.
Claims (15)
1. the fault detection method of anti-spilled detection circuit in a kind of electricity cooking pot, which comprises the following steps:
Judge the current state of the electric cooking pot and detects whether the anti-spilled detection circuit has output fault-signal；
If the current state is standby mode and persistently receives the anti-spilled detection electricity in the first preset time T 1
The fault-signal of road output then judges that the anti-spilled detection circuit breaks down；
If the current state is in working condition and receives continuing for the fault-signal of the anti-spilled detection circuit output
Time is greater than the second preset time T 2, then judges that the anti-spilled detection circuit breaks down, wherein second preset time
T2 is greater than first preset time T 1.
2. the fault detection method of anti-spilled detection circuit in electricity cooking pot as described in claim 1, which is characterized in that described
First preset time T, 1 range is 20s >=T1 >=5s.
3. the fault detection method of anti-spilled detection circuit in electricity cooking pot as described in claim 1, which is characterized in that described
Second preset time T, 2 range is 300s >=T2 >=100s.
4. the fault detection method of anti-spilled detection circuit in electricity cooking pot as described in claim 1, which is characterized in that
When the current state is the standby mode, if not receiving the failure letter of the anti-spilled detection circuit output
Number or receive the fault-signal duration be less than or equal to first preset time T 1, then judge the anti-spilled inspection
Slowdown monitoring circuit is in normal condition；
When the current state is the working condition, if not receiving the failure letter of the anti-spilled detection circuit output
Number or receive the anti-spilled detection circuit output fault-signal duration be less than or equal to described second it is default when
Between T2, then judge that the anti-spilled detection circuit is in the normal condition.
5. the fault detection method of anti-spilled detection circuit in electricity cooking pot as described in claim 1, which is characterized in that described
Fault-signal is low and high level energizing signal.
6. the fault detection method of anti-spilled detection circuit in electricity cooking pot as described in claim 1, which is characterized in that also wrap
It includes:
When judging that the anti-spilled detection circuit breaks down, warning note is issued.
7. a kind of control method of electricity cooking pot, which comprises the following steps:
It executes and whether is gone out such as fault detection method of any of claims 1-6 with anti-spilled detection circuit as described in judging
Existing failure；
When the anti-spilled detection circuit breaks down, if the current state of the electricity cooking pot is in working condition, into
One step judges whether to complete to identify the culinary art type of the electric cooking pot；
If completing the identification to the culinary art type, the electricity is cooked according to the culinary art type corresponding culinary art parameter
Device is controlled；
If not completing the identification to the culinary art type, the electric cooking pot is controlled according to preset heating power
System.
8. the control method of electricity cooking pot as claimed in claim 7, which is characterized in that the culinary art type includes cooking congee, stewing
It soup and cooks.
9. a kind of electricity cooking pot characterized by comprising
Anti-spilled detection circuit, the anti-spilled detection circuit is for detecting whether the electric cooking pot overflows；
Control module, the control module are used to judge the current state of the electric cooking pot and detect the anti-spilled detection electricity
Whether road has output fault-signal, if the current state is standby mode and persistently receives in the first preset time T 1
The fault-signal of the anti-spilled detection circuit output, then the control module judges that event occurs in the anti-spilled detection circuit
Barrier, if the current state be in working condition and receive the fault-signal of the anti-spilled detection circuit output it is lasting when
Between be greater than the second preset time T 2, then the control module judge the anti-spilled detection circuit failure, wherein described the
Two preset time Ts 2 are greater than first preset time T 1.
10. electricity cooking pot as claimed in claim 9, which is characterized in that
When the current state is the standby mode, if not receiving the failure letter of the anti-spilled detection circuit output
Number or receive duration of the fault-signal and be less than first preset time T 1, then described in control module judgement
Anti-spilled detection circuit is in normal condition；
When the current state is the working condition, if not receiving the failure letter of the anti-spilled detection circuit output
Number or receive duration of fault-signal of the anti-spilled detection circuit output and be less than or equal to second preset time
T2, then the control module judges that the anti-spilled detection circuit is in the normal condition.
11. the electric cooking pot as described in claim 9 or 10, which is characterized in that the fault-signal is low and high level overturning letter
Number.
12. electricity cooking pot as claimed in claim 9, which is characterized in that further include:
Alarm module, the alarm module are connected with the control module, wherein the control module judge it is described anti-spilled
Detection circuit controls the alarm module and issues warning note when breaking down.
13. electricity cooking pot as claimed in claim 9, which is characterized in that
When the anti-spilled detection circuit breaks down, if the current state of the electricity cooking pot is in working condition, institute
Control module is stated to further determine whether to complete to identify the culinary art type of the electric cooking pot；
If completing the identification to the culinary art type, the control module is according to the corresponding culinary art parameter of the culinary art type
The electric cooking pot is controlled；
If not completing the identification to the culinary art type, the control module cooks the electricity according to preset heating power
Device of preparing food is controlled.
14. electricity cooking pot as claimed in claim 13, which is characterized in that the culinary art type including cooking congee, Baoshang and cook.
15. electricity cooking pot as claimed in claim 9, which is characterized in that the anti-spilled detection circuit includes:
First electrode and second electrode；
First transformer and the second transformer, first transformer and the second transformer are used to carry out isolation transformation, described
The primary side of first transformer is connected with AC power source, one end of the secondary side of first transformer and the first electrode phase
Even, one end of the primary side of second transformer is connected with the second electrode, the primary side of second transformer it is another
One end is connected with the other end of the secondary side of first transformer；
The secondary side of output unit, second transformer is connected with the output unit, wherein when there is spilling to occur, institute
Short circuit conducting between first electrode and second electrode is stated, the output unit exports overflow checking signal.
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| CN201510283715.7A CN106291311B (en) | 2015-05-28 | 2015-05-28 | The fault detection method and control method of electric cooking pot and its anti-spilled detection circuit |
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| CN108309036B (en) * | 2017-01-18 | 2021-04-20 | 佛山市顺德区美的电热电器制造有限公司 | Electric cooker, anti-overflow fault detection device and anti-overflow fault detection method thereof |
| CN108309040B (en) * | 2017-01-18 | 2020-04-03 | 佛山市顺德区美的电热电器制造有限公司 | Electric cooker, anti-overflow control device and anti-overflow control method thereof |
| CN108958208B (en) * | 2017-05-25 | 2021-03-19 | 佛山市顺德区美的电热电器制造有限公司 | Electric heater and fault identification method of AD input device of electric heater |
| CN109709834A (en) * | 2017-10-25 | 2019-05-03 | 佛山市顺德区美的电热电器制造有限公司 | Cooking methods, device, cooking apparatus and computer readable storage medium |
| CN109994107B (en) * | 2017-12-30 | 2021-12-07 | 青岛海尔智慧厨房电器有限公司 | Control method of voice disinfection cabinet and voice disinfection cabinet |
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| US6720774B2 (en) * | 2002-07-29 | 2004-04-13 | Sun Microsystems, Inc. | Interchangeable fan control board with fault detection |
| CN103017853A (en) * | 2011-09-20 | 2013-04-03 | 徐斌 | Water level probe with self-checking function and self-checking method of water level probe |
| CN203897996U (en) * | 2014-05-05 | 2014-10-29 | 佛山市顺德区美的电热电器制造有限公司 | Foam detection device in electric cooker and electric cooker |
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