CN109426284B - Heat preservation control method and device for cooking appliance and cooking appliance - Google Patents
Heat preservation control method and device for cooking appliance and cooking appliance Download PDFInfo
- Publication number
- CN109426284B CN109426284B CN201710779424.6A CN201710779424A CN109426284B CN 109426284 B CN109426284 B CN 109426284B CN 201710779424 A CN201710779424 A CN 201710779424A CN 109426284 B CN109426284 B CN 109426284B
- Authority
- CN
- China
- Prior art keywords
- temperature
- cooking appliance
- heating power
- detected
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010411 cooking Methods 0.000 title claims abstract description 203
- 238000004321 preservation Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000010438 heat treatment Methods 0.000 claims abstract description 151
- 230000008569 process Effects 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 6
- 235000013305 food Nutrition 0.000 abstract description 7
- 238000009833 condensation Methods 0.000 description 11
- 230000005494 condensation Effects 0.000 description 11
- 230000003247 decreasing effect Effects 0.000 description 8
- 230000007774 longterm Effects 0.000 description 7
- 241000209094 Oryza Species 0.000 description 5
- 235000007164 Oryza sativa Nutrition 0.000 description 5
- 235000009566 rice Nutrition 0.000 description 5
- 238000002791 soaking Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011946 reduction process Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
-
- 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
- A47J27/004—Cooking-vessels with integral electrical heating means
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Electric Stoves And Ranges (AREA)
- Control Of Resistance Heating (AREA)
- Baking, Grill, Roasting (AREA)
- Cookers (AREA)
Abstract
The embodiment of the invention provides a cooking appliance and a heat preservation control method and device thereof, and belongs to the field of cooking appliances. The method comprises the following steps: receiving the relevant temperature of the cooking utensil detected by the temperature detector; judging whether the detected related temperature of the cooking utensil is reduced to a heat preservation temperature or not; when the detected relevant temperature of the cooking appliance does not drop to the heat preservation temperature, controlling a bottom heater of the cooking appliance to heat by adopting a first heating power so as to compensate the side temperature of the cooking appliance in the dropping process of the relevant temperature of the cooking appliance; when the detected relevant temperature of the cooking appliance is reduced to the heat preservation temperature, controlling the bottom heater to heat by adopting second heating power so as to maintain the relevant temperature of the cooking appliance at the heat preservation temperature; wherein an average power of the first heating power is smaller than an average power of the second heating power. The invention can solve the problem that food is easy to erode and deteriorate after being soaked on the side surface for a long time.
Description
Technical Field
The invention relates to the field of cooking appliances, in particular to a heat preservation control method and device of a cooking appliance and the cooking appliance.
Background
When cooking is performed using a cooking tool, such as an electric rice cooker or an electric pressure cooker, a warm-keeping stage may be entered during the cooking process. To achieve the heat-retaining effect, a side heater may be added to the cooking tool having the bottom heater. The additional addition of the side heater increases the manufacturing cost of the cooking appliance. However, if the side heater is omitted, the side of the cooking utensil is not heated during the heat preservation process, so that the water vapor is easy to condense and condense on the side, and the food, such as rice, is easy to erode and deteriorate after being soaked for a long time on the side.
Disclosure of Invention
An object of an embodiment of the present invention is to provide a method and an apparatus for controlling insulation of a cooking appliance, and a cooking appliance, which are used for solving the above technical problems or at least partially solving the above technical problems.
In order to achieve the above object, an embodiment of the present invention provides a method for controlling insulation of a cooking appliance, including: receiving the relevant temperature of the cooking utensil detected by the temperature detector; judging whether the detected related temperature of the cooking utensil is reduced to a heat preservation temperature or not; when the detected relevant temperature of the cooking appliance does not drop to the heat preservation temperature, controlling a bottom heater of the cooking appliance to heat by adopting a first heating power so as to compensate the side temperature of the cooking appliance in the dropping process of the relevant temperature of the cooking appliance; when the detected relevant temperature of the cooking appliance is reduced to the heat preservation temperature, controlling the bottom heater to heat by adopting second heating power so as to maintain the relevant temperature of the cooking appliance at the heat preservation temperature; wherein an average power of the first heating power is smaller than an average power of the second heating power.
Optionally, the average power of the first heating power is any power between 5 watts and 20 watts.
Optionally, the controlling the bottom heater of the cooking appliance to heat with the first heating power to compensate for the side temperature of the cooking appliance during the decrease of the relevant temperature of the cooking appliance includes: calculating a falling speed of the relevant temperature of the cooking appliance according to the detected relevant temperature of the cooking appliance; the first heating power is adjusted according to a falling speed of the relevant temperature of the cooking appliance.
Optionally, the controlling the bottom heater to heat with the second heating power to maintain the relevant temperature of the cooking appliance at the keeping temperature includes: controlling the bottom heater to heat by adopting initial power of second heating power; judging whether the detected relevant temperature of the cooking appliance is lower than a first temperature threshold value; when the detected relevant temperature of the cooking appliance is lower than a first temperature threshold value, increasing the second heating power, and controlling the bottom heater to heat by adopting the increased second heating power; wherein the first temperature threshold is less than the soak temperature.
Optionally, the controlling the bottom heater to heat with the second heating power to maintain the relevant temperature of the cooking appliance at the keeping temperature includes: after controlling the bottom heater to heat by adopting the increased second heating power, judging whether the detected related temperature of the cooking appliance is recovered to the heat preservation temperature; and when the detected related temperature of the cooking appliance is recovered to the heat preservation temperature, recovering the second heating power to the initial power, and controlling the bottom heater to heat by adopting the recovered second heating power.
Optionally, the controlling the bottom heater to heat with the second heating power to maintain the relevant temperature of the cooking appliance at the keeping temperature includes: determining whether the detected temperature associated with the cooking appliance is above a second temperature threshold; controlling the bottom heater to stop heating in the next heating period when the detected relevant temperature of the cooking appliance is higher than a second temperature threshold; wherein the second temperature threshold is greater than the soak temperature.
Optionally, the rated power of the first heating power is 300 watts, and the duty ratio is 1/16; the rated power of the second heating power is 300 watts, and the duty ratio is 3/16.
The embodiment of the invention provides a heat preservation control device of a cooking appliance, which comprises: the receiving module is used for receiving the relevant temperature of the cooking utensil detected by the temperature detector; the judging module is used for judging whether the detected related temperature of the cooking appliance is reduced to the heat preservation temperature or not and sending the judgment result to the second control module and the first control module; the first control module is used for controlling a bottom heater of the cooking appliance to heat by adopting first heating power to compensate the side temperature of the cooking appliance in the reduction process of the relevant temperature of the cooking appliance when the judgment result indicates that the detected relevant temperature of the cooking appliance does not reduce to the heat preservation temperature; the second control module is used for controlling the bottom heater to heat by adopting second heating power to maintain the relevant temperature of the cooking appliance at the heat preservation temperature after the judgment result indicates that the detected relevant temperature of the cooking appliance is reduced to the heat preservation temperature;
wherein an average power of the first heating power is smaller than an average power of the second heating power.
Optionally, the average power of the first heating power is any power between 5 watts and 20 watts.
Optionally, the first control module is configured to calculate a falling speed of the relevant temperature of the cooking appliance according to the detected relevant temperature of the cooking appliance; the first heating power is adjusted according to a falling speed of the relevant temperature of the cooking appliance.
Optionally, the second control module is configured to control the bottom heater to heat with an initial power of a second heating power; the judging module is used for judging whether the detected related temperature of the cooking appliance is lower than a first temperature threshold value or not after the detected related temperature of the cooking appliance is reduced to the heat preservation temperature, and sending a judging result to the second control module; the second control module is used for increasing the second heating power and controlling the bottom heater to heat by adopting the increased second heating power when the judgment result indicates that the detected related temperature of the cooking appliance is lower than a first temperature threshold; wherein the first temperature threshold is less than the soak temperature.
Optionally, the determining module is configured to determine whether the detected temperature related to the cooking appliance is restored to the heat preservation temperature after the second control module controls the bottom heater to heat with the increased second heating power, and send the determination result to the second control module; and the second control module is used for restoring the second heating power to the initial power when the judgment result indicates that the detected related temperature of the cooking appliance is restored to the heat preservation temperature, and controlling the bottom heater to heat by adopting the restored second heating power.
Optionally, the determining module is configured to determine whether the detected temperature related to the cooking appliance is higher than a second temperature threshold after the detected temperature related to the cooking appliance is decreased to the heat preservation temperature, and send a determination result to the second control module; the second control module is used for controlling the bottom heater to stop heating in the next heating period when the judgment result indicates that the detected relevant temperature of the cooking appliance is higher than a second temperature threshold; wherein the second temperature threshold is greater than the soak temperature.
Optionally, the rated power of the first heating power is 300 watts, and the duty ratio is 1/16; the rated power of the second heating power is 300 watts, and the duty ratio is 3/16.
The invention also discloses a machine-readable storage medium, wherein the machine-readable storage medium stores instructions for causing a machine to execute the heat preservation control method of the cooking appliance.
The present invention also discloses a cooking appliance, comprising: a temperature detector for detecting a temperature associated with the cooking appliance; a bottom heater for heating the cooking container; a controller, the controller comprising: a memory to store instructions; a processor for executing the instructions in the memory to implement the method of controlling the keep warm of a cooking appliance as in any one of the preceding claims.
Through the technical scheme, the bottom heater is controlled to be heated by adopting the first heating power in the temperature reduction stage after the temperature is started to compensate the side temperature of the cooking appliance in the reduction process of the relevant temperature of the cooking appliance, so that the serious condensation caused by the long-term low side temperature of the cooking appliance is avoided, and the condensation amount of the side condensation is reduced under the condition that the side heater is not increased, so that the problem that the food is easy to erode and deteriorate due to long-term soaking of the side is solved.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
fig. 1 is a flowchart of a heat-preservation control method of a cooking appliance according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of bottom heater heating versus temperature change during a soak phase according to an embodiment of the present invention;
FIG. 3 is a flow chart of a process for heating control during maintenance of soak temperature according to an embodiment of the invention;
FIG. 4 is a flow chart of a process for heating control during maintenance of soak temperature according to an embodiment of the invention;
FIG. 5 is a flow chart of a process for heating control during maintenance of soak temperature according to an embodiment of the invention; and
fig. 6 is a structural view of a temperature keeping control apparatus of a cooking appliance according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
Fig. 1 is a flowchart of a heat preservation control method of a cooking appliance according to an embodiment of the present invention, which may be used for various cooking appliances such as an electric cooker, an electric pressure cooker, and the like, and as shown in fig. 1, the method may include the following steps.
In step S110, the temperature detector detects the temperature of the cooking appliance.
For example, a temperature detector such as a temperature sensor may be used to detect a temperature of a part of the cooking appliance, such as a container interior or a heating part of the cooking appliance, and transmit the detected temperature to a controller of the cooking appliance as a related temperature of the cooking appliance.
In step S120, it is determined whether the detected temperature related to the cooking appliance has dropped to the keeping warm temperature.
For example, it is desirable to maintain the relevant temperature of the cooking appliance at the holding temperature, for example, the holding temperature may be 62-80 ℃, for example, 73 ℃. The controller compares the temperature detected by the temperature detector with a holding temperature (for example, 73 ℃), if the temperature detected by the temperature detector is higher than the holding temperature, the temperature detector indicates that the temperature detector is still in the temperature drop area, the bottom heater is controlled to heat by adopting the first heating power, if the temperature detected by the temperature detector is reduced to the holding temperature, the temperature detector indicates that the temperature detector enters the temperature maintaining area, and the bottom heater is controlled to heat by adopting the second heating power to maintain the relevant temperature of the cooking utensil at the holding temperature.
In step S130, when the detected relevant temperature of the cooking appliance does not drop to the holding temperature, controlling the bottom heater of the cooking appliance to heat with the first heating power to compensate for the side temperature of the cooking appliance during the drop of the relevant temperature of the cooking appliance.
Wherein the average power of the first heating power can be any power between 5 watts and 20 watts.
For example, as shown in fig. 2, at the beginning of the keeping warm, the temperature of the cooking utensil starts to decrease from the temperature during cooking, for example, from 100 ℃, and after decreasing to the keeping warm temperature, the keeping warm temperature starts to be maintained, for example, after decreasing to 73 ℃, the temperature of the cooking utensil starts to be maintained at 73 ℃. Herein, a time zone in which the relevant temperature of the cooking appliance starts to fall from the temperature at the time of cooking to the keeping temperature may be referred to as a temperature falling zone, and a time zone in which the relevant temperature of the cooking appliance is maintained at the keeping temperature may be referred to as a temperature maintaining zone. In the cooking appliance without the side heater, the temperature of the side surface of the container is always lower than the temperature of the cooked rice from the beginning of entering the heat preservation, so that condensation and condensation on the side surface of the container are more. In the present invention, as shown in fig. 2, the temperature drop zone is heated with a small power of 5 w to 20 w on average, for example, with a power of 300w at a rated power and a duty ratio of 1/16. In this way, the side surface of the cooking utensil can be temperature compensated in the temperature drop area, so that the temperature difference between the temperature of the side surface and the temperature of food in the container (for example, the temperature difference between the side wall of the pot body and rice in the pot) is reduced, the dew condensation amount of the side surface is further reduced, and the food is prevented from being eroded and deteriorated due to long-term soaking in the side surface.
Further, the average power of the first heating power selected in the present application may be any power between 5 watts and 20 watts. Since the temperature compensation effect on the side of the cooking appliance is not good if the first heating temperature is too low, resulting in an increase in the amount of dew condensation on the side, and since the temperature drop to the keeping temperature is not good if the first heating temperature is too high, the average power of 5 w to 20 w is a preferable power range in which the object of the present invention can be easily achieved.
The first heating power may have a constant power rating and duty cycle, for example, a power rating of 300 watts and a duty cycle of 1/16.
In another embodiment, the controlling the bottom heater of the cooking appliance to heat with the first heating power to compensate for the side temperature of the cooking appliance during the drop of the relevant temperature of the cooking appliance may include: calculating a falling speed of the relevant temperature of the cooking appliance according to the detected relevant temperature of the cooking appliance; the first heating power is adjusted according to a falling speed of the relevant temperature of the cooking appliance.
For example, the first heating power may be increased (e.g., the rated power or duty ratio of the first heating power is increased) when the temperature decrease speed is higher than the preset speed, and the first heating power may be decreased (e.g., the rated power or duty ratio of the first heating power is decreased) or the heating is stopped (i.e., the first heating power is decreased to 0) when the temperature decrease speed is lower than the preset speed. The temperature decrease speed may be obtained by dividing the temperature difference Δ T of the temperature decrease within the time interval Δ T by the time interval Δ T, i.e., the temperature decrease speed K becomes Δ T/Δ T.
In step S140, when the detected temperature related to the cooking appliance drops to the keeping temperature, the bottom heater is controlled to heat with the second heating power to maintain the temperature related to the cooking appliance at the keeping temperature.
Wherein the average power of the first heating power is smaller than the average power of the second heating power.
In one embodiment, the first heating power is rated at 300 watts and has a duty cycle of 1/16; the second heating power is rated at 300 watts and has a duty cycle of 3/16.
For example, when the relative temperature of the cooking utensil is higher than the heat preservation temperature of 73 ℃, the bottom heater is controlled to be heated by adopting the rated power of 300 watts and the duty ratio of 1/16; and when the relative temperature of the cooking utensil is reduced to 73 ℃, controlling the bottom heater to heat by adopting the rated power of 300 watts and the duty ratio of 3/16.
In this way, the rated power of the first heating power and the rated power of the second heating power are the same, and the average power of the first heating power is smaller than that of the second heating power only by adjusting the duty ratio, so that the power control of the heater is facilitated.
In one embodiment, as shown in fig. 3, the controlling the bottom heater to heat with the second heating power to maintain the temperature of the cooking appliance at the keeping temperature includes the following steps.
In step S302, the bottom heater is controlled to heat with an initial power of the second heating power.
In step S304, it is determined whether the detected temperature related to the cooking appliance is lower than a first temperature threshold.
In step S306, when the detected temperature related to the cooking appliance is lower than the first temperature threshold, the second heating power is increased, and the bottom heater is controlled to heat with the increased second heating power.
Wherein the first temperature threshold is less than the holding temperature.
Wherein increasing the second heating power may include: increasing the duty cycle or the rated power, or both, of the second heating power. For example, initially, the second heating power is a rated power of 300 watts, the duty ratio of 3/16 (i.e., heating is performed for 3 seconds in a period of 16 seconds), when the detected relevant temperature of the cooking appliance is lower than the first temperature threshold value, the duty ratio of the second heating power is increased 5/16 (i.e., heating is performed for 5 seconds in a period of 16 seconds), and the bottom heater is controlled to perform heating with the increased second heating power. The first temperature threshold may be a difference between the soak temperature and the temperature difference threshold, for example, 73-1 deg.c-72 deg.c.
In an embodiment, as shown in fig. 4, the controlling the bottom heater to heat with the second heating power to maintain the temperature of the cooking appliance at the keeping temperature may include the following steps.
In step S402, after controlling the bottom heater to heat with the increased second heating power, it is determined whether the detected temperature of the cooking appliance is restored to the keeping warm temperature.
In step S404, when the detected temperature of the cooking appliance returns to the insulation temperature, the second heating power is returned to the initial power, and the bottom heater is controlled to heat with the second heating power after the return.
For example, after heating with the second heating power of 300W rated power and 5/16 duty ratio, it is determined whether the detected temperature of the cooking appliance is returned to the holding temperature of 73 ℃. And when the detected related temperature of the cooking appliance is recovered to the heat preservation temperature of 73 ℃, recovering the second heating power to the rated power of 300W, the duty ratio of 3/16, and controlling the bottom heater to heat the cooking appliance by the second heating power of the rated power of 300W and the duty ratio of 3/16.
In an embodiment, as shown in fig. 5, controlling the bottom heater to heat with the second heating power to maintain the relevant temperature of the cooking appliance at the keeping temperature may include the following steps.
In step S502, it is determined whether the detected temperature related to the cooking appliance is higher than a second temperature threshold.
In step S504, the bottom heater is controlled to stop heating in the next heating cycle when the detected relevant temperature of the cooking appliance is higher than the second temperature threshold.
Wherein the second temperature threshold is greater than the holding temperature.
For example, the second temperature threshold may be a sum of the holding temperature and the temperature difference threshold, for example, 73 ℃ +1 ℃ + 74 ℃. For example, when the detected relevant temperature of the cooking appliance is higher than 74 ℃, the bottom heater is controlled to stop heating in the next heating period (for example, 16 second period).
Through the technical scheme, serious condensation caused by long-term low temperature of the side surface of the cooking utensil can be avoided, and the condensation amount of the side surface can be reduced under the condition that a side surface heater is not increased, so that the problem that food is easy to erode and deteriorate due to long-term soaking of the side surface is solved.
The invention provides a machine-readable storage medium, which stores instructions for causing a machine to execute a heat preservation control method of a cooking appliance according to any one of the preceding embodiments.
The present invention also provides a cooking appliance, comprising: a temperature detector for detecting a temperature associated with the cooking appliance; a bottom heater for heating the cooking container; and a controller. The controller includes: a memory to store instructions; a processor for executing the instructions in the memory to implement the method for controlling the temperature keeping of the cooking appliance according to any of the previous embodiments.
Fig. 6 is a structural view of a temperature keeping control apparatus of a cooking appliance according to an embodiment of the present invention, which can be used for various cooking appliances such as an electric rice cooker, an electric pressure cooker, etc., and as shown in fig. 6, the apparatus may include the following modules.
A receiving module 610 for receiving the relevant temperature of the cooking appliance detected by the temperature detector;
the judging module 620 is configured to judge whether the detected temperature related to the cooking appliance is lowered to a heat preservation temperature, and send a judgment result to the second control module 640 and the first control module 630;
a first control module 630, configured to control a bottom heater of the cooking appliance to heat with a first heating power to compensate for a lateral temperature of the cooking appliance during a decrease of the relevant temperature of the cooking appliance when the determination result indicates that the detected relevant temperature of the cooking appliance does not decrease to the holding temperature;
the second control module 640 is configured to control the bottom heater to heat with a second heating power to maintain the relevant temperature of the cooking appliance at the insulation temperature after the determination result indicates that the detected relevant temperature of the cooking appliance is reduced to the insulation temperature;
wherein an average power of the first heating power is smaller than an average power of the second heating power.
In one embodiment, the average power of the first heating power is any power between 5 watts and 20 watts.
In one embodiment, the first heating power is rated at 300 watts and has a duty cycle of 1/16; the second heating power is rated at 300 watts and has a duty cycle of 3/16.
In one embodiment, the first control module 620 is configured to calculate a falling speed of the relevant temperature of the cooking appliance according to the detected relevant temperature of the cooking appliance; the first heating power is adjusted according to a falling speed of the relevant temperature of the cooking appliance.
In one embodiment, the second control module 640 is configured to control the bottom heater to heat with an initial power of a second heating power;
the judging module 620 is configured to judge whether the detected temperature related to the cooking appliance is lower than a first temperature threshold value after the detected temperature related to the cooking appliance is decreased to the heat preservation temperature, and send a judgment result to the second control module 640;
the second control module 640 is configured to increase the second heating power and control the bottom heater to heat with the increased second heating power when the determination result indicates that the detected temperature related to the cooking appliance is lower than the first temperature threshold;
wherein the first temperature threshold is less than the soak temperature.
Further, the determining module 620 is configured to determine whether the detected temperature related to the cooking appliance is recovered to the heat preservation temperature after the second control module controls the bottom heater to heat with the increased second heating power, and send the determination result to the second control module 640;
the second control module 640 is configured to, when the determination result indicates that the detected temperature related to the cooking appliance is recovered to the heat preservation temperature, recover the second heating power to the initial power, and control the bottom heater to heat with the recovered second heating power.
In an embodiment, the determining module 620 is configured to determine whether the detected temperature related to the cooking appliance is higher than the second temperature threshold after the detected temperature related to the cooking appliance is decreased to the keeping warm temperature, and send the determination result to the second control module 640;
the second control module 640 is configured to control the bottom heater to stop heating in a next heating cycle when the determination result indicates that the detected temperature related to the cooking appliance is higher than a second temperature threshold;
wherein the second temperature threshold is greater than the soak temperature.
Through the technical scheme, serious condensation caused by long-term low temperature of the side surface of the cooking utensil can be avoided, and the condensation amount of the side surface can be reduced under the condition that a side surface heater is not increased, so that the problem that food is easy to erode and deteriorate due to long-term soaking of the side surface is solved.
The above device corresponds to the above method, and the specific embodiments can be described in detail in the above method, which is not described herein again.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not describe every possible combination.
Those skilled in the art will understand that all or part of the steps in the method according to the above embodiments may be implemented by a program, which is stored in a storage medium and includes several instructions to enable a single chip, a chip, or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.
Claims (16)
1. A method for controlling heat preservation of a cooking appliance, the method comprising:
receiving the relevant temperature of the cooking utensil detected by the temperature detector;
judging whether the detected related temperature of the cooking utensil is reduced to a heat preservation temperature or not;
when the detected relevant temperature of the cooking appliance does not drop to the heat preservation temperature, controlling a bottom heater of the cooking appliance to continuously heat by adopting the first heating power to compensate the side temperature of the cooking appliance in the dropping process of the relevant temperature of the cooking appliance;
when the detected relevant temperature of the cooking appliance is reduced to the heat preservation temperature, controlling the bottom heater to heat by adopting second heating power so as to maintain the relevant temperature of the cooking appliance at the heat preservation temperature;
wherein an average power of the first heating power is smaller than an average power of the second heating power.
2. The method of claim 1, wherein the average power of the first heating power is any power between 5 watts and 20 watts.
3. The method of claim 1, wherein controlling the bottom heater of the cooking appliance to heat with the first heating power to compensate for the side temperature of the cooking appliance during a drop in an associated temperature of the cooking appliance comprises:
calculating a falling speed of the relevant temperature of the cooking appliance according to the detected relevant temperature of the cooking appliance;
the first heating power is adjusted according to a falling speed of the relevant temperature of the cooking appliance.
4. The method of claim 1, wherein controlling the bottom heater to heat with a second heating power to maintain the associated temperature of the cooking appliance at the holding temperature comprises:
controlling the bottom heater to heat by adopting initial power of second heating power;
judging whether the detected relevant temperature of the cooking appliance is lower than a first temperature threshold value;
when the detected relevant temperature of the cooking appliance is lower than a first temperature threshold value, increasing the second heating power, and controlling the bottom heater to heat by adopting the increased second heating power;
wherein the first temperature threshold is less than the soak temperature.
5. The method of claim 4, wherein controlling the bottom heater to heat with a second heating power to maintain the associated temperature of the cooking appliance at the holding temperature comprises:
after controlling the bottom heater to heat by adopting the increased second heating power, judging whether the detected related temperature of the cooking appliance is recovered to the heat preservation temperature;
and when the detected related temperature of the cooking appliance is recovered to the heat preservation temperature, recovering the second heating power to the initial power, and controlling the bottom heater to heat by adopting the recovered second heating power.
6. The method of claim 1, wherein controlling the bottom heater to heat with a second heating power to maintain the associated temperature of the cooking appliance at the holding temperature comprises:
determining whether the detected temperature associated with the cooking appliance is above a second temperature threshold;
controlling the bottom heater to stop heating in the next heating period when the detected relevant temperature of the cooking appliance is higher than a second temperature threshold;
wherein the second temperature threshold is greater than the soak temperature.
7. The method of claim 1,
the rated power of the first heating power is 300 watts, and the duty ratio is 1/16;
the rated power of the second heating power is 300 watts, and the duty ratio is 3/16.
8. An insulation control device of a cooking appliance, characterized in that the device comprises:
the receiving module is used for receiving the relevant temperature of the cooking utensil detected by the temperature detector;
the judging module is used for judging whether the detected related temperature of the cooking appliance is reduced to the heat preservation temperature or not and sending the judgment result to the second control module and the first control module;
the first control module is used for controlling a bottom heater of the cooking appliance to continuously adopt first heating power to heat when the judgment result indicates that the detected related temperature of the cooking appliance does not drop to the heat preservation temperature so as to compensate the side temperature of the cooking appliance in the dropping process of the related temperature of the cooking appliance;
the second control module is used for controlling the bottom heater to heat by adopting second heating power to maintain the relevant temperature of the cooking appliance at the heat preservation temperature after the judgment result indicates that the detected relevant temperature of the cooking appliance is reduced to the heat preservation temperature;
wherein an average power of the first heating power is smaller than an average power of the second heating power.
9. The apparatus of claim 8, wherein the average power of the first heating power is any power between 5 watts and 20 watts.
10. The apparatus of claim 8, wherein the first control module is configured to calculate a falling speed of the relevant temperature of the cooking appliance according to the detected relevant temperature of the cooking appliance; the first heating power is adjusted according to a falling speed of the relevant temperature of the cooking appliance.
11. The apparatus of claim 8, wherein the second control module is configured to control the bottom heater to heat with an initial power of a second heating power;
the judging module is used for judging whether the detected related temperature of the cooking appliance is lower than a first temperature threshold value or not after the detected related temperature of the cooking appliance is reduced to the heat preservation temperature, and sending a judging result to the second control module;
the second control module is used for increasing the second heating power and controlling the bottom heater to heat by adopting the increased second heating power when the judgment result indicates that the detected related temperature of the cooking appliance is lower than a first temperature threshold;
wherein the first temperature threshold is less than the soak temperature.
12. The device according to claim 11, wherein the judging module is configured to judge whether the detected temperature related to the cooking appliance is restored to the heat preservation temperature after the second control module controls the bottom heater to heat with the increased second heating power, and send the judgment result to the second control module;
and the second control module is used for restoring the second heating power to the initial power when the judgment result indicates that the detected related temperature of the cooking appliance is restored to the heat preservation temperature, and controlling the bottom heater to heat by adopting the restored second heating power.
13. The device according to claim 8, wherein the judging module is configured to judge whether the detected temperature related to the cooking appliance is higher than a second temperature threshold value after the detected temperature related to the cooking appliance is reduced to the keeping warm temperature, and send the judgment result to the second control module;
the second control module is used for controlling the bottom heater to stop heating in the next heating period when the judgment result indicates that the detected relevant temperature of the cooking appliance is higher than a second temperature threshold;
wherein the second temperature threshold is greater than the soak temperature.
14. The apparatus of claim 8,
the rated power of the first heating power is 300 watts, and the duty ratio is 1/16;
the rated power of the second heating power is 300 watts, and the duty ratio is 3/16.
15. A machine-readable storage medium storing instructions thereon for causing a machine to perform the insulation control method of the cooking appliance according to any one of claims 1 to 7.
16. A cooking appliance, characterized in that it comprises:
a temperature detector for detecting a temperature associated with the cooking appliance;
a bottom heater for heating the cooking container;
a controller, the controller comprising:
a memory to store instructions;
a processor for executing the instructions in the memory to implement the method of controlling the keep warm of a cooking appliance according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710779424.6A CN109426284B (en) | 2017-09-01 | 2017-09-01 | Heat preservation control method and device for cooking appliance and cooking appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710779424.6A CN109426284B (en) | 2017-09-01 | 2017-09-01 | Heat preservation control method and device for cooking appliance and cooking appliance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109426284A CN109426284A (en) | 2019-03-05 |
| CN109426284B true CN109426284B (en) | 2021-10-12 |
Family
ID=65512770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710779424.6A Active CN109426284B (en) | 2017-09-01 | 2017-09-01 | Heat preservation control method and device for cooking appliance and cooking appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109426284B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112535414B (en) * | 2019-09-23 | 2022-02-25 | 佛山市顺德区美的电热电器制造有限公司 | Cooking appliance, control device and heat preservation control method thereof, and computer readable storage medium |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0744902B2 (en) * | 1989-09-27 | 1995-05-17 | 松下電器産業株式会社 | Cooking device |
| JPH07108258B2 (en) * | 1992-02-07 | 1995-11-22 | タイガー魔法瓶株式会社 | Electric rice cooker |
| JP3456150B2 (en) * | 1998-07-28 | 2003-10-14 | 東芝ホームテクノ株式会社 | Insulated pot |
| CN101015414A (en) * | 2006-02-08 | 2007-08-15 | 东芝家电技术股份有限公司 | Electric cooker |
| CN101023842A (en) * | 2006-02-22 | 2007-08-29 | 松下电器产业株式会社 | Electric cooker |
| JP2010207443A (en) * | 2009-03-11 | 2010-09-24 | Panasonic Corp | Rice cooker |
| CN104172904A (en) * | 2014-08-21 | 2014-12-03 | 佛山市顺德区美的电热电器制造有限公司 | Method for controlling cooking utensil |
| CN204698319U (en) * | 2015-06-09 | 2015-10-14 | 佛山市顺德区美的电热电器制造有限公司 | Cooking apparatus |
| CN204995191U (en) * | 2015-06-19 | 2016-01-27 | 佛山市海辰科技有限公司 | PTCR -xthm electric heat chip far infrared heat source high -temperature steam stove |
| CN105476441A (en) * | 2014-10-09 | 2016-04-13 | 佛山市顺德区美的电热电器制造有限公司 | Cooking appliance, heat preservation control method of cooking appliance and heat preservation control device of cooking appliance |
| CN105725721A (en) * | 2014-12-08 | 2016-07-06 | 佛山市顺德区美的电热电器制造有限公司 | Cooking machine and control method for cooking machine |
| CN106264060A (en) * | 2015-05-26 | 2017-01-04 | 佛山市顺德区美的电热电器制造有限公司 | Electric cooker |
| CN106490957A (en) * | 2016-10-08 | 2017-03-15 | 珠海格力电器股份有限公司 | Electric cooker and method for controlling electric cooker |
| CN106510481A (en) * | 2016-10-11 | 2017-03-22 | 九阳股份有限公司 | Heat preservation control method for electric rice cooker |
| CN106510445A (en) * | 2017-01-15 | 2017-03-22 | 刘慧� | Electric cooker |
| CN106618183A (en) * | 2016-12-12 | 2017-05-10 | 广州市吉谷电器科技有限公司 | Heating control system and method for electric kettles |
| CN106724736A (en) * | 2016-11-16 | 2017-05-31 | 李国华 | Automatic watering grill pan |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07289430A (en) * | 1994-04-25 | 1995-11-07 | Toshiba Home Technol Corp | Rice cooker |
| JP3248810B2 (en) * | 1994-06-08 | 2002-01-21 | 東芝ホームテクノ株式会社 | Insulation device |
| JP3351348B2 (en) * | 1998-08-05 | 2002-11-25 | 松下電器産業株式会社 | Jar rice cooker |
| US20060131362A1 (en) * | 2004-12-22 | 2006-06-22 | Akzo Nobel N.V. | Chemical composition and process |
-
2017
- 2017-09-01 CN CN201710779424.6A patent/CN109426284B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0744902B2 (en) * | 1989-09-27 | 1995-05-17 | 松下電器産業株式会社 | Cooking device |
| JPH07108258B2 (en) * | 1992-02-07 | 1995-11-22 | タイガー魔法瓶株式会社 | Electric rice cooker |
| JP3456150B2 (en) * | 1998-07-28 | 2003-10-14 | 東芝ホームテクノ株式会社 | Insulated pot |
| CN101015414A (en) * | 2006-02-08 | 2007-08-15 | 东芝家电技术股份有限公司 | Electric cooker |
| CN101023842A (en) * | 2006-02-22 | 2007-08-29 | 松下电器产业株式会社 | Electric cooker |
| JP2010207443A (en) * | 2009-03-11 | 2010-09-24 | Panasonic Corp | Rice cooker |
| CN104172904A (en) * | 2014-08-21 | 2014-12-03 | 佛山市顺德区美的电热电器制造有限公司 | Method for controlling cooking utensil |
| CN105476441A (en) * | 2014-10-09 | 2016-04-13 | 佛山市顺德区美的电热电器制造有限公司 | Cooking appliance, heat preservation control method of cooking appliance and heat preservation control device of cooking appliance |
| CN105725721A (en) * | 2014-12-08 | 2016-07-06 | 佛山市顺德区美的电热电器制造有限公司 | Cooking machine and control method for cooking machine |
| CN106264060A (en) * | 2015-05-26 | 2017-01-04 | 佛山市顺德区美的电热电器制造有限公司 | Electric cooker |
| CN204698319U (en) * | 2015-06-09 | 2015-10-14 | 佛山市顺德区美的电热电器制造有限公司 | Cooking apparatus |
| CN204995191U (en) * | 2015-06-19 | 2016-01-27 | 佛山市海辰科技有限公司 | PTCR -xthm electric heat chip far infrared heat source high -temperature steam stove |
| CN106490957A (en) * | 2016-10-08 | 2017-03-15 | 珠海格力电器股份有限公司 | Electric cooker and method for controlling electric cooker |
| CN106510481A (en) * | 2016-10-11 | 2017-03-22 | 九阳股份有限公司 | Heat preservation control method for electric rice cooker |
| CN106724736A (en) * | 2016-11-16 | 2017-05-31 | 李国华 | Automatic watering grill pan |
| CN106618183A (en) * | 2016-12-12 | 2017-05-10 | 广州市吉谷电器科技有限公司 | Heating control system and method for electric kettles |
| CN106510445A (en) * | 2017-01-15 | 2017-03-22 | 刘慧� | Electric cooker |
Non-Patent Citations (1)
| Title |
|---|
| 新型压力电饭煲剖析;徐勇;《家庭电子》;20040229;35 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109426284A (en) | 2019-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109419366B (en) | Method and device for judging rice water amount in cooking appliance and cooking appliance | |
| US11071404B2 (en) | Method for adjusting the heating power of at least one heating element of a domestic appliance | |
| KR102331108B1 (en) | Method for operating a hob, and hob | |
| CN105832120B (en) | The control method of cooking apparatus and cooking apparatus | |
| US20210000282A1 (en) | Control device and method for pressure cooking appliance, and pressure cooking appliance | |
| CN104957967A (en) | Cooking utensil and control method thereof | |
| CN109426284B (en) | Heat preservation control method and device for cooking appliance and cooking appliance | |
| EP3637219B1 (en) | Industrial temperature control device having automatic soak time correction and self-diagnosing heating anomaly function, and method therefor | |
| CN109124289B (en) | Method and device for controlling cooking process, storage medium and cooking utensil | |
| JP2021103006A (en) | Heat pump hot water supply device | |
| CN103097819B (en) | Have balance sysmte heating furnace and for regulating the method for heating container temperature | |
| CN111195066B (en) | Cooking appliance, control method and device thereof | |
| JP6995201B2 (en) | Cooking methods and utensils | |
| JP2007198697A (en) | Cooking method | |
| CN114983241B (en) | Control method and control device of cooking utensil | |
| CN109907640B (en) | Heat preservation control method and device of cooking appliance and cooking appliance | |
| JP2005339807A (en) | Electromagnetic cooker | |
| CN108926228B (en) | Method and device for displaying cooking countdown time, storage medium and cooking appliance | |
| CN109419313B (en) | Electric cooker and heating control method for electric cooker | |
| JP3724488B2 (en) | Coffee cooker | |
| JP3518522B2 (en) | Coffee kettle | |
| CN114365956B (en) | Heating protection method, control device and oven | |
| CN105852618A (en) | Control method and control device of cooking appliance and cooking appliance | |
| JP2005304517A (en) | Electric rice cooker and warmer | |
| CN109143911B (en) | Method and apparatus for controlling heating during the water absorption phase of a rice cooking process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |