CN109431233A - Cooking appliance and heat preservation control method and determination method thereof - Google Patents
Cooking appliance and heat preservation control method and determination method thereof Download PDFInfo
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- CN109431233A CN109431233A CN201811160653.0A CN201811160653A CN109431233A CN 109431233 A CN109431233 A CN 109431233A CN 201811160653 A CN201811160653 A CN 201811160653A CN 109431233 A CN109431233 A CN 109431233A
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- heating device
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- 238000000034 method Methods 0.000 title claims abstract description 86
- 238000010411 cooking Methods 0.000 title claims abstract description 70
- 238000004321 preservation Methods 0.000 title abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 108
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000012937 correction Methods 0.000 claims description 30
- 238000001816 cooling Methods 0.000 claims description 26
- 238000009413 insulation Methods 0.000 claims description 25
- 230000008859 change Effects 0.000 claims description 13
- 230000000630 rising effect Effects 0.000 claims description 7
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 abstract description 6
- 235000007164 Oryza sativa Nutrition 0.000 abstract description 3
- 235000009566 rice Nutrition 0.000 abstract description 3
- 240000007594 Oryza sativa Species 0.000 abstract 1
- 230000007423 decrease Effects 0.000 description 7
- 235000013305 food Nutrition 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 235000012054 meals Nutrition 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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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
-
- 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
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A47J27/0802—Control mechanisms for pressure-cookers
-
- 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
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A47J27/086—Pressure-cookers; Lids or locking devices specially adapted therefor with built-in heating means
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/24—Warming devices
- A47J36/2483—Warming devices with electrical heating means
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/32—Time-controlled igniting mechanisms or alarm devices
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Cookers (AREA)
- Electric Stoves And Ranges (AREA)
Abstract
The invention discloses a cooking appliance and a heat preservation control method and a determination method thereof, wherein the heat preservation control method comprises the following steps: when the cooking appliance enters a heat preservation mode, the controller acquires the internal temperature T of the cooking appliance and judges whether the internal temperature T is less than or equal to a first preset temperature T1, if so, the cooking appliance is controlled to enter a heating stage, otherwise, the upper heating device is controlled to be in a closed state, until the internal temperature T is less than or equal to the first preset temperature T1, the cooking appliance is controlled to enter the heating stage, and in the heating stage, the controller controls the upper heating device to heat according to a preset mode. The heat preservation control method of the invention can prevent the condensate water from obviously gathering and flowing down in a strand in the heat preservation process by controlling the heating mode of the upper heating device, and compared with the existing mode, the method obviously reduces the highest temperature and the balance temperature of the controller, improves the surface form of the rice and avoids the condition of white drip and dry and hard on the surface.
Description
Technical field
The present invention relates to kitchen appliance technical field, especially a kind of cooking apparatus and its thermal-insulation control method, determination side
Method.
Background technique
User may require that carry out long-time heat preservation, one is boil in user using electric cooker when using electric cooker sometimes
It directly being kept the temperature after meal/cook congee, another kind is to be kept the temperature under non-hot pot state, during carrying out long-time heat preservation, meal
Stewing upper cover will form a large amount of condensed waters, and one side condensing drip will lead to the feelings of appearance " drop is white " (the rotten meal in part) on rice
Condition；Another aspect condensed water can pool on plume to support ring when uncapping, and reduce user experience.
Therefore, commercially available electric cooker generallys use top heating wire heating, dries the condensed water on cover board.But in the process
A contradiction is produced, the drying effect of condensed water is better, and the temperature of controller is higher, and the service life is shorter.In addition, existing electric cooker
It is similarly controlled in holding stage, the heat preservation under different situations is not adaptively adjusted.
Summary of the invention
In view of this, one of the objects of the present invention is to provide a kind of cooking apparatus and its thermal-insulation control methods, determination side
Method, to solve the problems, such as that the heat preservation under different situations is not adaptively adjusted during long-time heat preservation.
In order to achieve the above objectives, on the one hand, the present invention adopts the following technical scheme:
A kind of thermal-insulation control method of cooking apparatus, the cooking apparatus include controller and top heating device, described
Thermal-insulation control method includes:
When the cooking apparatus enters holding mode, the controller obtains the internal temperature T of the cooking apparatus, and
Judge whether the internal temperature T is less than or equal to the first predetermined temperature T1, if so, controlling the cooking apparatus enters heating
Otherwise stage controls the top heating device and is in close state, make a reservation for until the internal temperature T is less than or equal to first
When temperature T1, controls the cooking apparatus and enters the heating period,
Wherein, in the heating period, the controller controls the top heating device and is heated by predetermined way.
Preferably, 85 DEG C≤T1≤110 DEG C.
Preferably, the predetermined way includes:
The controller controls the top heating device intermittent-heating.
Preferably, the method for controlling the top heating device intermittent-heating includes:
When the internal temperature T is greater than third predetermined temperature T3, controls the top heating device and is in close state,
Until controlling the top heating device when internal temperature T is less than or equal to the second predetermined temperature T2 and opening.
Preferably, 80 DEG C≤T2≤110 DEG C；And/or
80℃≤T3≤110℃。
Preferably, in the heating period, the supply voltage of the cooking apparatus or the use of the cooking apparatus are detected
The virtual voltage of electrical part adjusts the heating power of the top heating device according to the virtual voltage.
On the other hand, the present invention adopts the following technical scheme:
A kind of determining method, for determining the first predetermined temperature T1 in thermal-insulation control method as described above, described
The range of one predetermined temperature T1 is [T4, T5], and T4 is the 4th predetermined temperature, and T5 is the 5th predetermined temperature,
The determining method includes:
The device of temperature variations and the cooking apparatus according at least to the internal temperature T described under natural cooling state
Have the temperature variations at the condensed water attachment covered and determines the 4th predetermined temperature T4；And/or
The temperature of temperature variations and the controller according at least to the internal temperature T described under natural cooling state
Situation of change determines the 5th predetermined temperature T5.
Preferably, according at least to the temperature variations and the culinary art of the internal temperature T described under natural cooling state
The method that the temperature variations at condensed water attachment on the utensil lid of utensil determine the 4th predetermined temperature T4 includes:
Obtain the first temperature variation curve of the internal temperature T under natural cooling state；
The second temperature at the condensed water attachment under natural cooling state on the utensil lid of the cooking apparatus is obtained to become
Change curve；
In the temperature descending branch of the second temperature change curve, the point that first temperature is lower than predetermined condensation temperature is obtained
As cohesion characteristic point, it is corresponding in first temperature variation curve to obtain the corresponding time point t1 of the cohesion characteristic point
Temperature value T4 ',
Temperature value T4 ' is regard as the 4th predetermined temperature T4, alternatively, the 4th predetermined temperature T4=T4 '+Δ T1, Δ T1
For the first temperature correction coefficient.
Preferably, the thermal-insulation control method is thermal-insulation control method as claimed in claim 4, and first temperature is repaired
The determination method of positive coefficient Δ T1 includes:
Determine first time correction factor Δ t1；
It obtains in second temperature change curve, by the temperature variation of time point t1- Δ t1 to time point t1, by the temperature
Variable quantity is spent as the first temperature correction coefficient Δ T1.
Preferably, determine that the first time method of correction factor Δ t1 includes:
After entering holding mode, top heating device begins to warm up time point and starts with the heating device cooking apparatus
Temperature from declining the difference at time point for becoming rising is the first time correction factor Δ t1 at condensed water attachment after heating.
Preferably, according at least to the temperature variations and the control of the internal temperature T described under natural cooling state
The method that the temperature variations of device determine the 5th predetermined temperature T5 includes:
Obtain the first temperature variation curve of the internal temperature T under natural cooling state；
Obtain the 4th temperature variation curve of the controller under natural cooling state；
The slope of each point in 4th temperature variation curve is defined as k2, the 4th temperature variation curve at a temperature of
Drop in section, take first | k2 | the point of the >=the first predetermined slope k2 ' declines characteristic point as temperature, and characteristic point drops in acquisition at this temperature
Temperature value T5 ' corresponding time point t2 corresponding in first temperature variation curve,
Temperature value T5 ' is regard as the 5th predetermined temperature T5, alternatively, the 5th predetermined temperature T5=T5 '+Δ T2, Δ T2
For second temperature correction factor.
Preferably, the thermal-insulation control method is thermal-insulation control method as claimed in claim 4, and the second temperature is repaired
The determination method of positive coefficient Δ T2 includes:
Determine the second time complexity curve coefficient delta t2；
It obtains in the 4th temperature variation curve, by the temperature variation of time point t2- Δ t2 to time point t2, by the temperature
Variable quantity is spent as the second temperature correction factor Δ T2.
Preferably, the method for determining the second time complexity curve coefficient delta t2 includes:
After entering holding mode, top heating device begins to warm up time point and starts with the heating device cooking apparatus
Controller temperature is the second time complexity curve coefficient delta t2 from declining the difference at time point for becoming rising after heating.
In another aspect, the present invention adopts the following technical scheme:
A kind of cooking apparatus is controlled using control method as described above.
Preferably, the cooking apparatus includes electric cooker or electric pressure cooking saucepan.
Cooking apparatus and its thermal-insulation control method provided by the present application determine method, pass through control top heating device
Heating method makes in insulating process to be not in that condensed water is significantly built up, at the situation under plume, and with current mode phase
Than significantly reducing the maximum temperature and equilibrium temperature of controller, maximum temperature has dropped 11.3 DEG C, and equilibrium temperature has dropped
12.7 DEG C, rice configuration of surface is improved, surface is avoided and occurs dripping white, stiff situation, while the heat preservation under different situations
Using different control methods, so that culinary art effect is more preferable, meets the different use demands of user, promote user experience.
Detailed description of the invention
By referring to the drawings to the description of the embodiment of the present invention, the above and other purposes of the present invention, feature and
Advantage will be apparent from, in the accompanying drawings:
Fig. 1 shows the working method schematic diagram of thermal-insulation control method provided by the invention；
Fig. 2 shows the method schematic diagrams that the 4th predetermined temperature T4 is determined in the present invention；
Fig. 3 shows the method schematic diagram that the 5th predetermined temperature T5 is determined in the present invention；
Fig. 4, which is shown, determines that the method for first time correction factor Δ t1 and the second time complexity curve coefficient delta t2 is shown in the present invention
It is intended to；
Fig. 5 shows the method schematic diagram that the first temperature correction coefficient Δ T1 is determined in the present invention.
Fig. 6 shows the method schematic diagram that second temperature correction factor Δ T2 is determined in the present invention.
Specific embodiment
Below based on embodiment, present invention is described, but the present invention is not restricted to these embodiments.In order to
It avoids confusion essence of the invention, there is no narrations in detail for well known method, process, process, element.
In addition, it should be understood by one skilled in the art that provided herein attached drawing be provided to explanation purpose, and
What attached drawing was not necessarily drawn to scale.
Unless the context clearly requires otherwise, "include", "comprise" otherwise throughout the specification and claims etc. are similar
Word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, be " including but not limited to " contains
Justice.
In the description of the present invention, it is to be understood that, term " first ", " second " etc. are used for description purposes only, without
It can be interpreted as indication or suggestion relative importance.
Existing cooking apparatus such as electric cooker, electric pressure cooking saucepan etc. is during long-time heat preservation, on utensil lid often
A large amount of condensed waters are formed, one side condensing drip is the case where will lead to appearance " drop is white " (the rotten meal in part) on food, another party
Face condensed water can pool on plume to support ring when uncapping, and reduce user experience, in order to solve this problem, the application mentions
A kind of thermal-insulation control method of cooking apparatus is supplied, the cooking apparatus includes controller and top heating device, herein upper
Portion's heating device may include the side heating device of cooking apparatus body side being arranged in and/or positioned at cooking apparatus ontology top
The top heating device in portion (such as being arranged on the utensil lid of ontology), it is preferable that top heating device refers mainly to be located at ontology
The top heating device at top.The thermal-insulation control method includes: the control when the cooking apparatus enters holding mode
Device obtains the internal temperature T of the cooking apparatus, and judges whether the internal temperature T is less than or equal to the first predetermined temperature
Otherwise T1 controls the top heating device and is in close state if so, controlling the cooking apparatus enters the heating period,
Until control the cooking apparatus when internal temperature T is less than or equal to the first predetermined temperature T1 and enter the heating period,
Preferably, 85 DEG C≤T1≤110 DEG C.
Wherein, the internal temperature T of cooking apparatus is detected to obtain by the temperature element being arranged on the cooking apparatus.
Specifically, the cooking apparatus referring to Fig.1, obtains the internal temperature T of cooking apparatus when entering holding mode,
At this point, illustrate that the state of current cooking apparatus is hot pot state if T > the first predetermined temperature T1, wouldn't heat at this time, it is internal
Temperature T is higher, meter Shui Liang is bigger, then the time for stopping the heating period is longer, and after a period of time, temperature gradually decreases, until T
When the≤the first predetermined temperature T1, controls the cooking apparatus and enter the heating period.If cooking apparatus is after entering holding mode, T
≤ the first predetermined temperature T1 illustrates the cold pot state of the current state of cooking apparatus, then controls the cooking apparatus and be directly entered
Heating period.
Further, in the heating period, the controller controls the top heating device and carries out by predetermined way
Heating.Wherein, the predetermined way includes: that the controller controls the top heating device progress intermittent-heating, such as controls
Top heating device processed is heated with predetermined duty ratio, by internal temperature T control in certain temperature range.Specifically
Ground, as shown in Figure 1, controlling the top heating device when the internal temperature T is greater than third predetermined temperature T3 and being in closing
State, until controlling the top heating device when internal temperature T is less than or equal to the second predetermined temperature T2 and opening.Its
In, 80 DEG C≤T2≤110 DEG C, 80 DEG C≤T3≤110 DEG C.It is understood that since the top heating device is starting to add
When heat or stopping heating, there is delay in the influence to internal temperature T, so work as T≤T2, after top heating device is begun to warm up,
Internal temperature T still has small size decline, and after T >=T3, top heater stop heating, internal temperature T is still had on slightly
It rises.
By the way that top heating device is arranged, top heating device is dried the condensed water on utensil lid when working
Evaporation avoids condensed water aggregation from dripping on food, the phenomenon that " drop is white " (the rotten meal in part) occurs, and top heating device uses
The mode of intermittent-heating avoids food stiff so that internal temperature is maintained in certain temperature range, while significantly reducing control
The maximum temperature and equilibrium temperature of device processed.
Further, in the heating period, the electricity consumption of the supply voltage or cooking apparatus of the cooking apparatus is detected
The virtual voltage (because the virtual voltage of supply voltage and electricity consumption device is in a linear relationship) of device, electricity consumption device for example can be
Top heating device adjusts the heating power of the top heating device according to the supply voltage or virtual voltage, for example,
The heating duty ratio of top heating device can be adjusted according to virtual voltage, to adjust heating power, to reach and design
Effect similar in power, heating duty ratio are in a heat cycles middle and upper part heating devices heat duration and to stop heating
The ratio between duration, virtual voltage is bigger, then the ratio of heating duty ratio is smaller, in a specific embodiment, works as power supply
When voltage is less than or equal to the first scheduled voltage, control top heating device is heated with the first predetermined heat duty ratio,
When supply voltage is greater than the first scheduled voltage and is less than or equal to the second scheduled voltage, top heating device is controlled with the
Two predetermined heat duty ratios are heated, and when supply voltage is greater than the second scheduled voltage, control top heating device with the
Three predetermined heat duty ratios are heated, wherein the first scheduled voltage is accounted for less than the second scheduled voltage, the first predetermined heat
The ratio of empty ratio > second predetermined heat duty ratio ratio > third predetermined heat duty ratio ratio.First scheduled voltage is excellent
200 to 220V, further preferably 209V are selected as, the second scheduled voltage is preferably 220 to 240V, further preferably
231V, the first predetermined heat duty ratio preferably (8-10s): (22-24s), further preferably 9s:23s, the second predetermined heat
Duty ratio is preferably (6-8s): (24-26s), further preferably 7s:25s, and third predetermined heat duty ratio is preferably (4-
6s): (26-28s), further preferably 5s:27s.
The first above-mentioned predetermined temperature T1 can be to be set based on experience value, it is preferable that realize accurate control, this
Application also provides a kind of determining method, described for determining the first predetermined temperature T1 in thermal-insulation control method as described above
The range of first predetermined temperature T1 is [T4, T5], and it is the first optional range limit of predetermined temperature T1 that T5, which is the 5th predetermined temperature,
It is mainly cooked/is cooked congee the pre- heat affecting of stage top heating device, it is that the first predetermined temperature T1 can that T4, which is the 4th predetermined temperature,
Range lower limit is selected, is mainly influenced by condensed water cohesion degree when natural cooling, is based on this, the determining method includes: at least
According to the condensation on the utensil lid of the temperature variations of the internal temperature T described under natural cooling state and the cooking apparatus
Temperature variations at water attachment determine the 4th predetermined temperature T4；According at least to the inside described under natural cooling state
The temperature variations of temperature T and the temperature variations of the controller determine the 5th predetermined temperature T5.
Specifically, with reference to Fig. 2, the method for determining the 4th predetermined temperature T4 includes:
It obtains described under natural cooling state (be not turned on top heating device, allow natural cooling inside cooking apparatus)
The first temperature variation curve of internal temperature T, wherein internal temperature T declines always；
The second temperature at the condensed water attachment under natural cooling state on the utensil lid of the cooking apparatus is obtained to become
Change curve, since also there is waste heat after the heating of top heater stop, so temperature is also under natural cooling state for condensed water
Small size raising is had, is begun to decline later；
In the temperature descending branch of the second temperature change curve, the point that first temperature is lower than predetermined condensation temperature is obtained
As cohesion characteristic point, in the cohesion characteristic point, condensed water obviously agglomerates, and can pool under plume when uncapping, and obtains the cohesion
Temperature value T4 ' the corresponding time point t1 of characteristic point corresponding in first temperature variation curve, can be by temperature value T4 '
As the 4th predetermined temperature T4, because there is delay in the influence after the work of top heating device to condensed water, it is therefore preferable that
Ground, the 4th predetermined temperature T4=T4 '+Δ T1, Δ T1 are the first temperature correction coefficient.
As shown in figure 5, the determination method of the first temperature correction coefficient Δ T1 includes:
Determine first time correction factor Δ t1；
It obtains in second temperature change curve, by the temperature variation of time point t1- Δ t1 to time point t1, by the temperature
Variable quantity is spent as the first temperature correction coefficient Δ T1.
Wherein, first time correction factor Δ t1 can be once testing value, in order to improve control accuracy, it is preferable that cook
Prepare food utensil enter holding mode after, top heating device begin to warm up time point begun to warm up with the heating device after condense
Temperature is the first time correction factor Δ t1 from declining the difference at time point for becoming rising at water attachment, specifically, such as
Shown in Fig. 4, after cooking apparatus enters holding mode, is opened in a specific time point control heating device, obtain the process
In, the third temperature variation curve at condensed water attachment on the utensil lid of cooking apparatus；
In third temperature variation curve, obtaining temperature becomes the corresponding time point work of the turning point risen from decline for the first time
For first time point；Time point that the top heating device is begun to warm up is obtained as the second time point；It heats and fills on top
It sets after beginning to warm up, the temperature of condensed water is promoted and there is delay, so first time point is different from the second time point, it will be described
First time point and the difference at second time point are as the first time correction factor Δ t1.
On the other hand, as shown in figure 3, the method for determining the 5th predetermined temperature T5 includes:
The first temperature variation curve of the internal temperature T under natural cooling state is obtained, wherein internal temperature T is one
Directly decline；
The 4th temperature variation curve for obtaining the controller under natural cooling state, due to top heater stop
Also there is waste heat to begin to decline later so controller temperature under natural cooling state also has small size raising after heating；
The slope of each point in 4th temperature variation curve is defined as k2, the 4th temperature variation curve at a temperature of
Drop in section, take first | k2 | the point of the >=the first predetermined slope k2 ' declines characteristic point as temperature, drops characteristic point at such a temperature,
Controller temperature starts to be decreased obviously, and it is bent in first temperature change to obtain the corresponding time point t2 of drop characteristic point at this temperature
Corresponding temperature value T5 ' in line can regard temperature value T5 ' as the 5th predetermined temperature T5, due to top heating device
There is delay in the influence after work to controller, it is therefore preferred that the 5th predetermined temperature T5=T5 '+Δ T2, Δ T2 are second
Temperature correction coefficient.
As shown in fig. 6, the determination method of the second temperature correction factor Δ T2 includes:
Determine the second time complexity curve coefficient delta t2；
It obtains in the 4th temperature variation curve, by the temperature variation of time point t2- Δ t2 to time point t2, by the temperature
Variable quantity is spent as the second temperature correction factor Δ T2.
Wherein, first time correction factor Δ t1 can be once testing value, in order to improve control accuracy, it is preferable that cook
Prepare food utensil enter holding mode after, top heating device begin to warm up time point begun to warm up with the heating device after control
Device temperature is the second time complexity curve coefficient delta t2 from declining the difference at time point for becoming rising.Specifically, such as Fig. 4 institute
Show, after cooking apparatus enters holding mode, opens, obtain during being somebody's turn to do, control in a specific time point control heating device
5th temperature variation curve of device processed；
According to the 5th temperature variation curve in the 5th temperature variation curve, obtains temperature and become for the first time by decline
For rising turning point corresponding time point as third time point；Obtain the time point that the top heating device is begun to warm up
As the second time point；After heating device is begun to warm up on top, the temperature of controller is promoted and there is delay, so when third
Between point it is different from the second time point, using the difference at the third time point and second time point as second time complexity curve
Coefficient delta t2.
The first predetermined temperature T1 is determined by the determination method, can not only be guaranteed that condensed water is not assembled, will not be dripped
Bai Xianxiang, while guaranteeing that the temperature of controller is not too high, prolong the service life.
The application also provides a kind of cooking apparatus, is controlled using control method as described above.Specifically, described to cook
Utensil of preparing food includes electric cooker or electric pressure cooking saucepan.
Those skilled in the art will readily recognize that above-mentioned each preferred embodiment can be free under the premise of not conflicting
Ground combination, superposition.
It should be appreciated that above-mentioned embodiment is merely exemplary, and not restrictive, without departing from of the invention basic
In the case where principle, those skilled in the art can be directed to the various apparent or equivalent modification or replace that above-mentioned details is made
It changes, is all included in scope of the presently claimed invention.
Claims (15)
1. a kind of thermal-insulation control method of cooking apparatus, which is characterized in that the cooking apparatus includes controller and top heating
Device, the thermal-insulation control method include:
When the cooking apparatus enters holding mode, the controller obtains the internal temperature T of the cooking apparatus, and judges
Whether the internal temperature T is less than or equal to the first predetermined temperature T1, if so, controlling the cooking apparatus enters heating rank
Section, otherwise controls the top heating device and is in close state, until the internal temperature T is less than or equal to the first predetermined temperature
When spending T1, controls the cooking apparatus and enters the heating period,
Wherein, in the heating period, the controller controls the top heating device and is heated by predetermined way.
2. thermal-insulation control method according to claim 1, which is characterized in that 85 DEG C≤T1≤110 DEG C.
3. thermal-insulation control method according to claim 1, which is characterized in that the predetermined way includes:
The controller controls the top heating device and carries out intermittent-heating.
4. thermal-insulation control method according to claim 3, which is characterized in that control the top heating device and carry out interval
The method of heating includes:
When the internal temperature T is greater than third predetermined temperature T3, controls the top heating device and be in close state, until
When the internal temperature T is less than or equal to the second predetermined temperature T2, controls the top heating device and open, the second predetermined temperature
T2 < third predetermined temperature T3.
5. thermal-insulation control method according to claim 3, which is characterized in that 80 DEG C≤T2≤110 DEG C；And/or
80℃≤T3≤110℃。
6. thermal-insulation control method according to one of claims 1 to 5, which is characterized in that in the heating period, detect institute
The virtual voltage for stating the supply voltage of cooking apparatus or the electricity consumption device of the cooking apparatus is adjusted according to the virtual voltage
The heating power of the top heating device.
7. a kind of determining method, for determining the first predetermined temperature in the thermal-insulation control method as described in one of claim 1 to 6
Spend T1, which is characterized in that
The range of the first predetermined temperature T1 is [T4, T5], and T4 is the 4th predetermined temperature, and T5 is the 5th predetermined temperature,
The determining method includes:
The utensil lid of temperature variations and the cooking apparatus according at least to the internal temperature T described under natural cooling state
On condensed water attachment at temperature variations determine the 4th predetermined temperature T4；And/or
The temperature change of temperature variations and the controller according at least to the internal temperature T described under natural cooling state
Situation determines the 5th predetermined temperature T5.
8. determining method according to claim 7, which is characterized in that according at least to the inside described under natural cooling state
The temperature variations at condensed water attachment on the utensil lid of the temperature variations of temperature T and the cooking apparatus determine institute
The method for stating the 4th predetermined temperature T4 includes:
Obtain the first temperature variation curve of the internal temperature T under natural cooling state；
It obtains the second temperature at the condensed water attachment under natural cooling state on the utensil lid of the cooking apparatus and changes song
Line；
In the temperature descending branch of the second temperature change curve, the point conduct that first temperature is lower than predetermined condensation temperature is obtained
Characteristic point is agglomerated, the corresponding time point t1 of cohesion characteristic point temperature corresponding in first temperature variation curve is obtained
Value T4 ',
Temperature value T4 ' is regard as the 4th predetermined temperature T4, alternatively, the 4th predetermined temperature T4=T4 '+Δ T1, Δ T1 are the
One temperature correction coefficient.
9. determining method according to claim 8, which is characterized in that the determination side of the first temperature correction coefficient Δ T1
Method includes:
Determine first time correction factor Δ t1；
It obtains in second temperature change curve, by the temperature variation of time point t1- Δ t1 to time point t1, which is become
Change amount is as the first temperature correction coefficient Δ T1.
10. determining method according to claim 9, which is characterized in that the method for determining first time correction factor Δ t1
Include:
After entering holding mode, top heating device begins to warm up time point and begins to warm up with the heating device cooking apparatus
Temperature from declining the difference at time point for becoming rising is the first time correction factor Δ t1 at condensed water attachment afterwards.
11. determining method according to claim 7, which is characterized in that in described under natural cooling state
The temperature variations of portion temperature T and the temperature variations of the controller determine the method packet of the 5th predetermined temperature T5
It includes:
Obtain the first temperature variation curve of the internal temperature T under natural cooling state；
Obtain the 4th temperature variation curve of the controller under natural cooling state；
The slope of each point in 4th temperature variation curve is defined as k2, in the temperature descending branch of the 4th temperature variation curve
In, take first | k2 | the point of the >=the first predetermined slope k2 ' declines characteristic point as temperature, and it is corresponding to obtain drop characteristic point at this temperature
Time point t2 temperature value T5 ' corresponding in first temperature variation curve,
Temperature value T5 ' is regard as the 5th predetermined temperature T5, alternatively, the 5th predetermined temperature T5=T5 '+Δ T2, Δ T2 are the
Two temperature correction coefficients.
12. determining method according to claim 11, which is characterized in that the thermal-insulation control method is such as claim 4
The determination method of the thermal-insulation control method, the second temperature correction factor Δ T2 includes:
Determine the second time complexity curve coefficient delta t2；
It obtains in the 4th temperature variation curve, by the temperature variation of time point t2- Δ t2 to time point t2, which is become
Change amount is as the second temperature correction factor Δ T2.
13. determining method according to claim 12, which is characterized in that the method for determining the second time complexity curve coefficient delta t2
Include:
After entering holding mode, top heating device begins to warm up time point and begins to warm up with the heating device cooking apparatus
Controller temperature is the second time complexity curve coefficient delta t2 from declining the difference at time point for becoming rising afterwards.
14. a kind of cooking apparatus, which is characterized in that controlled using the control method as described in one of claim 1 to 6.
15. cooking apparatus according to claim 14, which is characterized in that the cooking apparatus includes electric cooker or Voltage force
Pot.
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| CN201811160653.0A CN109431233B (en) | 2018-09-30 | 2018-09-30 | Cooking appliance and heat preservation control method and determination method thereof |
| JP2020570413A JP7152526B2 (en) | 2018-09-30 | 2018-12-22 | Cookware and its heat retention control method and determination method |
| PCT/CN2018/122915 WO2020062650A1 (en) | 2018-09-30 | 2018-12-22 | Cooking appliance, and heat preservation control method and determination method therefor |
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| CN113455918A (en) * | 2021-08-24 | 2021-10-01 | 珠海格力电器股份有限公司 | Control method and device, electronic equipment, cooking utensil and storage medium |
| US11134808B2 (en) | 2020-03-30 | 2021-10-05 | Sharkninja Operating Llc | Cooking device and components thereof |
| US11627834B2 (en) | 2017-08-09 | 2023-04-18 | Sharkninja Operating Llc | Cooking system for cooking food |
| US11751710B2 (en) | 2019-02-25 | 2023-09-12 | Sharkninja Operating Llc | Guard for cooking system |
| WO2024078466A1 (en) * | 2022-10-11 | 2024-04-18 | 日升餐厨科技（广东）有限公司 | Indirect temperature measurement method based on thermal shock |
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| CN112484087B (en) * | 2020-10-13 | 2022-12-16 | 华帝股份有限公司 | Cold state identification method of kitchen range and kitchen range thereof |
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| CN109431233B (en) | 2020-11-10 |
| JP2021527502A (en) | 2021-10-14 |
| WO2020062650A1 (en) | 2020-04-02 |
| JP7152526B2 (en) | 2022-10-12 |
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