CN111358305A - Electric cooker and control method thereof - Google Patents
Electric cooker and control method thereof Download PDFInfo
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- CN111358305A CN111358305A CN202010356142.7A CN202010356142A CN111358305A CN 111358305 A CN111358305 A CN 111358305A CN 202010356142 A CN202010356142 A CN 202010356142A CN 111358305 A CN111358305 A CN 111358305A
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/32—Time-controlled igniting mechanisms or alarm devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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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
- A47J2202/00—Devices having temperature indicating means
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Abstract
The invention relates to an electric cooker and a control method thereof. Wherein the control method comprises the following steps: in the boiling stage, acquiring the bottom temperature of the electric cooker in real time; and when the bottom temperature of the electric cooker reaches the limited temperature, adjusting the heating power of the electric cooker in real time so as to enable the running time of the electric cooker in the boiling stage to reach the expected set time. According to the invention, after the bottom temperature of the electric cooker reaches the limited temperature, the heating power of the electric cooker is adjusted in real time, so that the running time of the electric cooker in the boiling stage reaches the expected set time, and the cooking effect of food reaches the expected value.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to an electric cooker and a control method thereof.
Background
An electric cooker is a cooker which converts electric energy into heat energy, has multiple functions of steaming, boiling, stewing, simmering and the like, is simple in use method and easy to operate, and is one of indispensable household appliances.
When the electric cooker is in a boiling stage and is subjected to abnormal temperature rise, the following judgment method is generally adopted: and setting two limited temperature values, reducing the heating power when the bottom temperature sensing bulb reaches a first limited temperature value, continuing to heat, and quitting heating when the bottom temperature sensing bulb reaches a second limited temperature value. However, if the temperature rise is too fast, even if the heating power is reduced after the first defined temperature value is reached, the heating may be stopped due to the cumulative effect of the heat and the second defined temperature value is reached very fast, so that the operation time of the boiling stage is shorter than the expected set time, and the cooking effect of the food is not expected.
Disclosure of Invention
Accordingly, it is necessary to provide an electric rice cooker and a control method thereof for solving the problem that the current food cooking effect is not good due to insufficient operation time of the boiling stage caused by abnormal temperature rise in the boiling stage of the cooking.
The embodiment of the invention provides a control method of an electric cooker, which comprises the following steps:
in the boiling stage, acquiring the bottom temperature of the electric cooker in real time;
and when the bottom temperature of the electric cooker reaches the limited temperature, adjusting the heating power of the electric cooker in real time so as to enable the running time of the electric cooker in the boiling stage to reach the expected set time.
In one embodiment, the adjusting the heating power of the electric cooker in real time comprises:
adjusting the heating power to a preset power for heating;
judging whether the bottom temperature of the electric cooker is greater than or equal to a first temperature threshold value, wherein the first temperature threshold value is greater than the limit temperature;
if the bottom temperature of the electric cooker is greater than or equal to the first temperature threshold value, stopping heating;
judging whether the bottom temperature of the electric cooker is less than or equal to a second temperature threshold value, wherein the second temperature threshold value is greater than the limited temperature and is less than the first temperature threshold value;
and when the bottom temperature of the electric cooker is judged to be less than or equal to the second temperature threshold, returning to the step of adjusting the heating power to the preset power for heating.
In one embodiment, the control method of the electric cooker further comprises the following steps:
starting timing after the bottom temperature of the electric cooker reaches the limit temperature;
determining whether a timed length is greater than an expected set time, and exiting the boiling phase when the timed length is determined to be greater than the expected set time.
In one embodiment, the adjusting the heating power of the electric cooker in real time comprises:
continuing heating at the current heating power;
judging whether the bottom temperature of the electric cooker is greater than or equal to a first temperature threshold value, wherein the first temperature threshold value is greater than the limit temperature;
if the bottom temperature of the electric cooker is greater than or equal to the first temperature threshold value, stopping heating;
judging whether the bottom temperature of the electric cooker is less than or equal to a second temperature threshold value, wherein the second temperature threshold value is greater than the limited temperature and is less than the first temperature threshold value;
and when the bottom temperature of the electric cooker is judged to be less than or equal to the second temperature threshold, adjusting the heating power to the preset power for heating, and returning to the judgment of whether the bottom temperature of the electric cooker is greater than or equal to the first temperature threshold.
In one embodiment, the control method of the electric cooker further comprises the following steps:
recording the times of the electric cooker reaching a heating power adjustment critical point, wherein the times of the heating power adjustment critical point are any one of the times of adjusting to the preset power, the times of stopping heating, the times of the temperature of the bottom of the electric cooker reaching the first temperature threshold and the times of cooling the bottom of the electric cooker to the second temperature threshold;
judging whether the times of the heating power adjustment critical point are larger than or equal to a preset time threshold value or not;
if so, the boiling stage is exited.
In one embodiment, the control method of the electric cooker further comprises the following steps:
and when the bottom temperature of the electric cooker is lower than the limited temperature, heating with normal heating power, wherein the normal heating power is higher than the preset power.
Based on the same inventive concept, the embodiment of the invention also provides an electric cooker, which comprises:
the acquisition module is used for acquiring the bottom temperature of the electric cooker in real time in a boiling stage; and
and the main control module is electrically connected with the acquisition module and is used for adjusting the heating power of the electric cooker in real time after the bottom temperature of the electric cooker reaches a limited temperature so as to enable the running time of the electric cooker in a boiling stage to reach the expected set time.
In one embodiment, the main control module includes:
the comparison unit is electrically connected with the acquisition module and is used for judging whether the bottom temperature of the electric cooker reaches a limited temperature, judging whether the bottom temperature of the electric cooker is greater than or equal to a first temperature threshold value, and judging whether the bottom temperature of the electric cooker is less than or equal to a second temperature threshold value, wherein the second temperature threshold value is greater than the limited temperature and less than the second temperature threshold value; and
the execution unit is electrically connected with the comparison unit and used for adjusting the heating power of the electric cooker to a preset power for heating after judging that the bottom temperature of the electric cooker reaches a limited temperature, stopping heating when the bottom temperature of the electric cooker is greater than or equal to the first temperature threshold value in the temperature rising process, and adjusting the heating power of the electric cooker to the preset power for heating when the bottom temperature of the electric cooker is less than or equal to the second temperature threshold value in the temperature lowering process.
In one embodiment, the main control module includes:
the comparison unit is electrically connected with the acquisition module and is used for judging whether the bottom temperature of the electric cooker reaches a limited temperature, judging whether the bottom temperature of the electric cooker is greater than or equal to a first temperature threshold value, and judging whether the bottom temperature of the electric cooker is less than or equal to a second temperature threshold value, wherein the second temperature threshold value is greater than the limited temperature and less than the second temperature threshold value; and
and the execution unit is electrically connected with the comparison unit and is used for continuing heating with the current heating power after judging that the bottom temperature of the electric cooker reaches the limited temperature, stopping heating when the bottom temperature of the electric cooker is greater than or equal to the first temperature threshold value in the temperature rising process, and adjusting the heating power of the electric cooker to the preset power for heating when the bottom temperature of the electric cooker is less than or equal to the second temperature threshold value in the temperature lowering process.
In one embodiment, the electric cooker further comprises a timing module, wherein the timing module is electrically connected with the execution unit and is used for starting timing after the bottom temperature of the electric cooker reaches the limit temperature;
the comparison unit is also used for judging whether the timing duration is greater than the expected set time;
and the execution unit is used for exiting the boiling stage when the timed duration is judged to be greater than the expected set time.
In one embodiment, the electric cooker further comprises a counting module, wherein the counting module is electrically connected with the execution unit and is used for recording the times of reaching a heating power adjustment critical point of the electric cooker, and the times of adjusting the heating power adjustment critical point are any one of the times of adjusting the preset power, the times of stopping heating, the times of reaching the first temperature threshold value by the temperature of the bottom of the electric cooker and the times of reducing the temperature of the bottom of the electric cooker to the second temperature threshold value;
the comparison unit is further used for judging whether the times of the heating power adjustment critical point are larger than or equal to a preset time threshold value;
the execution unit is further used for exiting the boiling stage when the number of times of the heating power adjustment critical point is judged to be larger than or equal to a preset number threshold.
In one embodiment, the electric cooker further comprises a cooker body and an upper cover, wherein the upper cover is hinged with the cooker body, can be opened and closed to cover the cooker body and defines a cooking cavity for placing the inner pot together with the cooker body;
the acquisition module is arranged on the bottom surface inside the cooker body of the electric cooker, and the measured temperature of the outer side wall of the bottom area of the inner cooker is used as the bottom temperature of the electric cooker; the main control module is arranged on the cooker body of the electric cooker.
In one embodiment, the acquisition module comprises at least one bulb.
In summary, the embodiment of the invention provides an electric cooker and a control method thereof. Wherein the control method comprises the following steps: in the boiling stage, acquiring the bottom temperature of the electric cooker in real time; and when the bottom temperature of the electric cooker reaches the limited temperature, adjusting the heating power of the electric cooker in real time so as to enable the running time of the electric cooker in the boiling stage to reach the expected set time. According to the invention, after the bottom temperature of the electric cooker reaches the limited temperature, the heating power of the electric cooker is adjusted in real time, so that the running time of the electric cooker in the boiling stage reaches the expected set time, and the cooking effect of food reaches the expected value.
Drawings
FIG. 1 is a schematic flow chart of a first method for controlling an electric rice cooker according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a second method for controlling an electric rice cooker according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of a third method for controlling an electric rice cooker according to an embodiment of the present invention;
FIG. 4 is a schematic view of an electrical structure of an electric rice cooker according to an embodiment of the present invention;
FIG. 5 is a schematic view of another electric cooker according to the embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a method for controlling an electric rice cooker, including:
step S110, in the boiling stage, acquiring the bottom temperature of the electric cooker in real time, wherein the bottom temperature is the temperature of the outer side wall of the bottom area of the inner pot of the electric cooker.
And step S120, after the bottom temperature of the electric cooker reaches the limited temperature, adjusting the heating power of the electric cooker in real time so as to enable the running time of the electric cooker in the boiling stage to reach the expected set time.
It can be understood that when the rice cooker is in a boiling stage and meets different normal temperatures, the traditional method for judging two limited temperature values cannot ensure the running time of the boiling stage, and the running time of the boiling stage is not enough, so that the cooking effect of food is not good. In the embodiment, when the abnormal temperature rise is met in the boiling stage and the bottom temperature of the electric cooker reaches or exceeds the limited temperature, the heating power of the electric cooker is adjusted in real time so as to ensure that the current stage exits after the cooking time reaches the expected set time, the requirements of the cooking time and the cooking temperature of the cooked food are met, and the food cooking effect can reach the expectation.
Referring to fig. 2, in one embodiment, the adjusting the heating power of the rice cooker in real time includes:
step S121, adjusting the heating power to a preset power for heating;
step S122, judging whether the bottom temperature of the electric cooker is greater than or equal to a first temperature threshold value, wherein the first temperature threshold value is greater than the limit temperature;
step S123, if the bottom temperature of the electric cooker is greater than or equal to the first temperature threshold, stopping heating;
step S124, judging whether the bottom temperature of the electric cooker is less than or equal to the second temperature threshold value, wherein the second temperature threshold value is greater than the limited temperature and less than the first temperature threshold value;
step S125, when the bottom temperature of the electric cooker is judged to be less than or equal to the second temperature threshold, the step S121 is returned to.
In this embodiment, the temperature sensing element is disposed at the bottom of the electric cooker to detect the bottom temperature of the electric cooker in real time.
The method comprises the steps of starting the cooking function of the electric cooker, detecting the bottom temperature of the electric cooker in real time, setting a limited temperature value T0 through a logic control program when a temperature sensing element detects abnormal temperature and normal temperature in the boiling stage of the electric cooker in the cooking process, and receiving information and controlling a heating mode to be converted into a temperature range (a second temperature threshold value T2-a first temperature threshold value T1) for control according to a judgment result when the temperature reaches the limited temperature value T0, wherein T1 is more than T2 and more than T0. The specific process is as follows:
step one, adjusting the heating power of the electric cooker to a preset power for heating.
And step two, judging whether the bottom temperature T of the electric cooker is greater than or equal to a first temperature threshold T1 when the electric cooker is in the temperature rising process. If the bottom temperature T of the electric cooker is greater than or equal to the first temperature threshold T1, the heating power is reduced to 0, heating is stopped, and the phenomenon that the electric cooker is triggered to exit the boiling stage due to continuous temperature rise caused by heat accumulation is avoided. If the bottom temperature T of the electric cooker is less than the first temperature threshold value T1, the electric cooker is continuously heated with the preset power.
And step three, after the heating is stopped, the electric cooker enters a cooling process, and whether the bottom temperature T of the electric cooker is smaller than or equal to the second temperature threshold T2 or not is judged. And when the bottom temperature T of the electric cooker is judged to be less than or equal to the second temperature threshold value T2, readjusting the heating power of the electric cooker to the preset power for heating. If the bottom temperature T of the electric cooker is greater than the second temperature threshold value T2, the heating stop state is continuously kept, so that the electric cooker is in a continuous cooling process.
It can be understood that in the boiling and heating process, the bottom temperature of the electric cooker is always kept in a temperature range (T2-T1), and abnormal temperature rise cannot cause the suspension of the cooking process, so that the problems that when the electric cooker encounters abnormal temperature rise in the boiling stage, the operating time of the boiling stage cannot be ensured due to the adoption of a judging method of two limited temperature values, and the food cooking effect is poor due to insufficient operating time of the boiling stage are solved.
With continued reference to fig. 2, in one embodiment, the method for controlling an electric rice cooker further includes:
step S130, starting timing after the bottom temperature of the electric cooker reaches the limit temperature;
step S140, judging whether the timing duration is greater than the expected set time;
step S150, and exiting the boiling stage when the timed duration is determined to be greater than the expected set time.
It can be understood that, in the invention, a limited temperature value T0 is set through a logic control program, when the temperature reaches the limited temperature value T0, according to the judgment result, the control program receives information and controls the heating mode to be switched to the temperature range (T2-T1) control, so that the bottom temperature of the electric cooker is always kept in the temperature range (T2-T1) in the boiling heating process, and the electric cooker can not be triggered to exit the boiling stage by the temperature. In this embodiment, the timing is started after the bottom temperature of the electric cooker reaches the limit temperature, and the boiling stage is exited when the timing duration t is determined to be greater than the expected set time t0, so that the problem that the cooking effect of food is poor due to the fact that the cooking time is too long is avoided.
Referring to fig. 3, in one embodiment, the adjusting the heating power of the rice cooker in real time includes:
step S120a, heating continuously at the current heating power;
step S120b, judging whether the bottom temperature of the electric cooker is larger than or equal to a first temperature threshold value, wherein the first temperature threshold value is larger than the limit temperature;
step S120c, if the bottom temperature of the electric cooker is greater than or equal to the first temperature threshold, stopping heating;
step S120d, determining whether the bottom temperature of the electric cooker is less than or equal to the second temperature threshold, wherein the second temperature threshold is greater than the limit temperature and less than the first temperature threshold;
step S120e, when the bottom temperature of the electric cooker is judged to be less than or equal to the second temperature threshold, adjusting the heating power to the preset power for heating, and returning to step S120 b.
In this embodiment, when the temperature reaches the limit temperature value T0, according to the determination result, the control program receives the information and controls the heating mode to be switched to the temperature interval control, and the specific process includes:
1) if the bottom temperature reaches the limit temperature value T0 and the heating is performed at the heating power P0, the current heating power P0 is maintained to perform continuous heating after the bottom temperature reaches the limit temperature value T0.
2) And continuously increasing the bottom temperature of the electric cooker, and judging whether the bottom temperature T of the electric cooker is greater than or equal to a first temperature threshold T1. If the bottom temperature T of the electric cooker is greater than or equal to the first temperature threshold T1, the heating power is reduced to 0, heating is stopped, and the phenomenon that the electric cooker is triggered to exit the boiling stage due to continuous temperature rise caused by heat accumulation is avoided. If the bottom temperature T of the electric cooker is less than the first temperature threshold value T1, the electric cooker is continuously heated at the current power.
3) And after the heating is stopped, the electric cooker enters a cooling process, and whether the bottom temperature T of the electric cooker is smaller than or equal to the second temperature threshold T2 at present is judged. When the bottom temperature T of the electric cooker is judged to be less than or equal to the second temperature threshold T2, adjusting the heating power of the electric cooker to a preset power for heating, and returning to the step 2); it should be noted that, when it is determined again that the bottom temperature T is less than the first temperature threshold T1, and the heating is continued with the current power, the current heating power is the preset power. If the bottom temperature T of the electric cooker is greater than the second temperature threshold value T2, the heating stop state is continuously kept, so that the electric cooker is in a continuous cooling process.
With reference to fig. 3, the method for controlling an electric rice cooker further includes:
step S160, recording the times N of the electric cooker reaching the heating power adjustment critical point, wherein the times N of the heating power adjustment critical point is any one of the times of adjusting the electric cooker to the preset power, the times of stopping heating, the times of the temperature of the bottom of the electric cooker reaching the first temperature threshold and the times of cooling the bottom of the electric cooker to the second temperature threshold;
step S170, determining whether the number N of times of the heating power adjustment critical point is greater than or equal to a preset number threshold N0;
in step S180, when the number N of times of adjusting the critical point of the heating power is greater than or equal to the preset number threshold N0, the boiling stage is exited.
It can be understood that, when the heating power is constant, the time required for each heating process differs a little, and the time required for each cooling process can also be considered to be the same, so that the duration time of the boiling process can be estimated according to the times of heating and cooling, and the boiling stage is exited by setting the number N of times of the heating power adjustment critical point, and then judging that the number N of times of the heating power adjustment critical point is greater than or equal to the preset number threshold N0, thereby avoiding the problem that the cooking effect of the food is poor due to the fact that the cooking time is too long.
The specific strategy of temperature interval control is not necessarily related to the strategy of triggering the electric cooker to exit the boiling stage, so the temperature interval control strategy can be combined with the strategy of triggering the electric cooker to exit the boiling stage at will.
In one embodiment, the control method of the electric cooker further comprises the following steps:
and when the bottom temperature of the electric cooker is lower than the limited temperature, heating with normal heating power, wherein the normal heating power is higher than the preset power.
Based on the same inventive concept, the embodiment of the present invention further provides an electric cooker, please refer to fig. 4 and 5, which includes a collecting module 510 and a main control module 520.
The collecting module 510 is used for acquiring the bottom temperature of the electric cooker in real time in the boiling stage.
The main control module 520 is electrically connected to the collecting module 510, and is configured to adjust the heating power of the electric cooker in real time after the bottom temperature of the electric cooker reaches a limited temperature, so that the operation time of the electric cooker in the boiling stage reaches a desired set time.
In the embodiment, when the abnormal temperature rise is met in the boiling stage and the bottom temperature of the electric cooker reaches and exceeds the limited temperature, the heating power of the electric cooker is adjusted in real time so as to ensure that the cooking time reaches the expected set time and then quits the current stage, the requirements of the cooking time and the cooking temperature of the cooked food are met, and the food cooking effect can reach the expectation.
In one embodiment, the main control module 520 includes a comparison unit 521 and an execution unit 522.
The comparing unit 521 is electrically connected to the collecting module 510, and is configured to determine whether the bottom temperature of the electric cooker reaches a defined temperature, determine whether the bottom temperature of the electric cooker is greater than or equal to a first temperature threshold, and determine whether the bottom temperature of the electric cooker is less than or equal to a second temperature threshold, where the second temperature threshold is greater than the defined temperature and less than the second temperature threshold.
The execution unit 522 is electrically connected to the comparison unit 521, and is configured to adjust the heating power of the electric cooker to a preset power for heating after determining that the bottom temperature of the electric cooker reaches the limit temperature, stop heating when the bottom temperature of the electric cooker is greater than or equal to the first temperature threshold in the temperature rising process, and adjust the heating power of the electric cooker to the preset power for heating when the bottom temperature of the electric cooker is less than or equal to the second temperature threshold in the temperature lowering process.
In this embodiment, the heating power is reduced to 0 and the heating is stopped by determining whether the bottom temperature T of the electric cooker is greater than or equal to the first temperature threshold T1 during the temperature rising process and whether the bottom temperature T of the electric cooker is greater than or equal to the first temperature threshold T1. And judging whether the bottom temperature T of the electric cooker in the cooling process is less than or equal to the second temperature threshold T2, and when the bottom temperature T of the electric cooker is less than or equal to the second temperature threshold T2, readjusting the heating power of the electric cooker to the preset power for heating, so that the bottom temperature of the electric cooker is always kept in a temperature range (T2-T1), and the abnormal temperature rise cannot cause the suspension of the cooking process, thereby solving the problems that the operating time of the boiling stage cannot be ensured by adopting a method for judging two limited temperature values when the electric cooker encounters abnormal temperature rise in the boiling stage, and the food cooking effect is poor due to the insufficient operating time of the boiling stage.
In one embodiment, the comparing unit 521 is used for determining whether the bottom temperature of the electric cooker reaches a defined temperature, determining whether the bottom temperature of the electric cooker is greater than or equal to a first temperature threshold, and determining whether the bottom temperature of the electric cooker is less than or equal to a second temperature threshold, wherein the second temperature threshold is greater than the defined temperature and less than the second temperature threshold; the execution unit 522 is configured to continue heating with the current heating power after determining that the bottom temperature of the electric cooker reaches the limit temperature, stop heating when the bottom temperature of the electric cooker is greater than or equal to the first temperature threshold in the temperature rising process, and adjust the heating power of the electric cooker to the preset power for heating when the bottom temperature of the electric cooker is less than or equal to the second temperature threshold in the temperature lowering process.
In the present embodiment, after the temperature reaches the defined temperature value T0, the current heating power P0 is maintained for continuous heating. The bottom temperature of the electric cooker continuously rises, the comparison unit 521 judges whether the bottom temperature T of the electric cooker is greater than or equal to a first temperature threshold T1, and when the bottom temperature T of the electric cooker is greater than or equal to the first temperature threshold T1, the execution unit 522 reduces the heating power to 0 and stops heating. After heating is stopped, the electric cooker enters a cooling process, a comparison unit 521 is used for judging whether the bottom temperature T of the electric cooker is smaller than or equal to a second temperature threshold value T2, when the bottom temperature T of the electric cooker is smaller than or equal to a second temperature threshold value T2, the heating power of the electric cooker is adjusted to be preset power for heating, and the electric cooker enters a heating process; it should be noted that, when it is determined again that the bottom temperature T is less than the first temperature threshold T1, and the heating is continued with the current power, the current heating power is the preset power. If the bottom temperature T of the electric cooker is greater than the second temperature threshold value T2, the heating stop state is continuously kept, so that the electric cooker is in a continuous cooling process.
In one embodiment, the electric cooker further comprises a timing module 530, wherein the timing module 530 is electrically connected with the execution unit 522 and is used for starting timing after the bottom temperature of the electric cooker reaches the limit temperature; the comparing unit 521 is further configured to determine whether the timing duration is greater than an expected set time; the executing unit 522 is configured to exit the boiling stage when it is determined that the timed duration is greater than the expected set time.
It can be understood that, in the invention, a limited temperature value T0 is set through a logic control program, when the temperature reaches the limited temperature value T0, according to the judgment result, the control program receives information and controls the heating mode to be converted into temperature interval control, so that the bottom temperature of the electric cooker is always kept in the temperature interval (T2-T1) in the boiling heating process, and the electric cooker can not be triggered to exit the boiling stage by using the temperature. In this embodiment, the timing is started after the bottom temperature of the electric cooker reaches the limit temperature, and the boiling stage is exited when the timing duration is determined to be greater than the expected set time, so that the problem that the cooking effect of food is poor due to the fact that the cooking time is too long is avoided.
In one embodiment, the electric cooker further comprises a counting module 540, the counting module 540 is electrically connected to the executing unit 522 and is configured to record the number of times that the electric cooker reaches a heating power adjustment critical point, where the number of times that the heating power adjustment critical point is adjusted to the preset power, the number of times that heating is stopped, the number of times that the temperature of the bottom of the electric cooker reaches the first temperature threshold, and the number of times that the temperature of the bottom of the electric cooker is decreased to the second temperature threshold; the comparing unit 521 is further configured to determine whether the number of times of the heating power adjustment critical point is greater than or equal to a preset number threshold; the executing unit 522 is further configured to exit the boiling stage when it is determined that the number of times of the heating power adjustment critical point is greater than or equal to a preset number threshold.
It can be understood that when the heating power is constant, the time required by each heating process is almost the same, and the time required by each cooling process is also considered to be the same, so that the duration time of the boiling process can be estimated according to the times of heating and cooling, and the boiling stage is exited by setting the times of the heating power adjustment critical point, and further judging that the times of the heating power adjustment critical point is greater than or equal to a preset time threshold, so as to avoid the problem that the cooking effect of food is poor due to the fact that the cooking time is too long.
In one embodiment, the electric cooker further comprises a cooker body 550 and an upper cover 560, wherein the upper cover 560 is hinged to the cooker body 550, can be opened and closed to cover the cooker body 550 and defines a cooking cavity for placing the inner pot together with the cooker body 550;
the acquisition module is arranged at the bottom surface inside a pot body 550 of the electric cooker, and the measured temperature of the outer side wall of the bottom area of the inner pot is used as the bottom temperature of the electric cooker; the main control module 520 is disposed in the body 550 of the electric rice cooker.
In one embodiment, the collection module 510 includes at least one thermal bulb, and the bottom temperature of the rice cooker is obtained through the thermal bulb.
In summary, the embodiment of the invention provides an electric cooker and a control method thereof. Wherein the control method comprises the following steps: in the boiling stage, acquiring the bottom temperature of the electric cooker in real time; and when the bottom temperature of the electric cooker reaches the limited temperature, adjusting the heating power of the electric cooker in real time so as to enable the running time of the electric cooker in the boiling stage to reach the expected set time. In the invention, after the bottom temperature of the electric cooker reaches the limited temperature, the heating power of the electric cooker is adjusted in real time, so that the running time of the electric cooker in the boiling stage reaches the expected set time, and the cooking effect of food reaches the expected set time
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (13)
1. A control method of an electric cooker is characterized by comprising the following steps:
in the boiling stage, acquiring the bottom temperature of the electric cooker in real time;
and when the bottom temperature of the electric cooker reaches the limited temperature, adjusting the heating power of the electric cooker in real time so as to enable the running time of the electric cooker in the boiling stage to reach the expected set time.
2. The method for controlling the electric cooker as claimed in claim 1, wherein the real-time adjustment of the heating power of the electric cooker comprises:
adjusting the heating power to a preset power for heating;
judging whether the bottom temperature of the electric cooker is greater than or equal to a first temperature threshold value, wherein the first temperature threshold value is greater than the limit temperature;
if the bottom temperature of the electric cooker is greater than or equal to the first temperature threshold value, stopping heating;
judging whether the bottom temperature of the electric cooker is less than or equal to a second temperature threshold value, wherein the second temperature threshold value is greater than the limited temperature and is less than the first temperature threshold value;
and when the bottom temperature of the electric cooker is judged to be less than or equal to the second temperature threshold, returning to the step of adjusting the heating power to the preset power for heating.
3. The method for controlling the electric cooker as claimed in claim 1, wherein the real-time adjustment of the heating power of the electric cooker comprises:
continuing heating at the current heating power;
judging whether the bottom temperature of the electric cooker is greater than or equal to a first temperature threshold value, wherein the first temperature threshold value is greater than the limit temperature;
if the bottom temperature of the electric cooker is greater than or equal to the first temperature threshold value, stopping heating;
judging whether the bottom temperature of the electric cooker is less than or equal to a second temperature threshold value, wherein the second temperature threshold value is greater than the limited temperature and is less than the first temperature threshold value;
and when the bottom temperature of the electric cooker is judged to be less than or equal to the second temperature threshold, adjusting the heating power to a preset power for heating, and returning to the judgment of whether the bottom temperature of the electric cooker is greater than or equal to the first temperature threshold.
4. The method for controlling an electric cooker as claimed in claim 1, further comprising:
starting timing after the bottom temperature of the electric cooker reaches the limit temperature;
determining whether a timed length is greater than an expected set time, and exiting the boiling phase when the timed length is determined to be greater than the expected set time.
5. The control method of the electric cooker as claimed in claim 2 or 3, further comprising:
recording the times of the electric cooker reaching a heating power adjustment critical point, wherein the times of the heating power adjustment critical point are any one of the times of adjusting to the preset power, the times of stopping heating, the times of the temperature of the bottom of the electric cooker reaching the first temperature threshold and the times of cooling the bottom of the electric cooker to the second temperature threshold;
judging whether the times of the heating power adjustment critical point are larger than or equal to a preset time threshold value or not;
if so, the boiling stage is exited.
6. The control method of the electric cooker as claimed in claim 2 or 3, further comprising:
and when the bottom temperature of the electric cooker is lower than the limited temperature, heating with normal heating power, wherein the normal heating power is higher than the preset power.
7. An electric rice cooker, characterized in that, comprising:
the acquisition module is used for acquiring the bottom temperature of the electric cooker in real time in a boiling stage; and
and the main control module is electrically connected with the acquisition module and is used for adjusting the heating power of the electric cooker in real time after the bottom temperature of the electric cooker reaches a limited temperature so as to enable the running time of the electric cooker in a boiling stage to reach the expected set time.
8. The rice cooker of claim 7, wherein the main control module comprises:
the comparison unit is electrically connected with the acquisition module and is used for judging whether the bottom temperature of the electric cooker reaches a limited temperature, judging whether the bottom temperature of the electric cooker is greater than or equal to a first temperature threshold value, and judging whether the bottom temperature of the electric cooker is less than or equal to a second temperature threshold value, wherein the second temperature threshold value is greater than the limited temperature and less than the second temperature threshold value; and
and the execution unit is electrically connected with the comparison unit and used for adjusting the heating power of the electric cooker to a preset power for heating after judging that the bottom temperature of the electric cooker reaches the limited temperature, stopping heating when the bottom temperature of the electric cooker is greater than or equal to the first temperature threshold value in the temperature rising process, and adjusting the heating power of the electric cooker to the preset power for heating when the bottom temperature of the electric cooker is less than or equal to the second temperature threshold value in the temperature lowering process.
9. The rice cooker of claim 7, wherein the main control module comprises:
the comparison unit is electrically connected with the acquisition module and is used for judging whether the bottom temperature of the electric cooker reaches a limited temperature, judging whether the bottom temperature of the electric cooker is greater than or equal to a first temperature threshold value, and judging whether the bottom temperature of the electric cooker is less than or equal to a second temperature threshold value, wherein the second temperature threshold value is greater than the limited temperature and less than the second temperature threshold value; and
and the execution unit is electrically connected with the comparison unit and is used for continuing heating with the current heating power after judging that the bottom temperature of the electric cooker reaches the limited temperature, stopping heating when the bottom temperature of the electric cooker is greater than or equal to the first temperature threshold value in the temperature rising process, and adjusting the heating power of the electric cooker to the preset power for heating when the bottom temperature of the electric cooker is less than or equal to the second temperature threshold value in the temperature lowering process.
10. The rice cooker as claimed in claim 8 or 9, further comprising a timing module electrically connected to the execution unit for starting timing after the bottom temperature of the rice cooker reaches the limit temperature;
the comparison unit is also used for judging whether the timing duration is greater than the expected set time;
and the execution unit is used for exiting the boiling stage when the timed duration is judged to be greater than the expected set time.
11. The electric cooker according to claim 8 or 9, further comprising a counting module electrically connected to the execution unit for recording the number of times that the electric cooker reaches a heating power adjustment critical point, wherein the number of times that the heating power adjustment critical point is adjusted to the preset power, the number of times that heating is stopped, the number of times that the temperature of the bottom temperature of the electric cooker reaches the first temperature threshold, and the number of times that the temperature of the bottom of the electric cooker is decreased to the second temperature threshold;
the comparison unit is further used for judging whether the times of the heating power adjustment critical point are larger than or equal to a preset time threshold value;
the execution unit is further used for exiting the boiling stage when the number of times of the heating power adjustment critical point is judged to be larger than or equal to a preset number threshold.
12. The rice cooker of claim 7, further comprising a cooker body and an upper cover, wherein the upper cover is hinged with the cooker body, can be opened and closed to cover the cooker body and defines a cooking cavity for placing the inner pot together with the cooker body;
the acquisition module is arranged on the bottom surface inside the cooker body of the electric cooker, and the measured temperature of the outer side wall of the bottom area of the inner cooker is used as the bottom temperature of the electric cooker; the main control module is arranged on the cooker body of the electric cooker.
13. The rice cooker of claim 12, wherein the collection module comprises at least one bulb.
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| CN202010356142.7A CN111358305A (en) | 2020-04-29 | 2020-04-29 | Electric cooker and control method thereof |
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| CN202010356142.7A CN111358305A (en) | 2020-04-29 | 2020-04-29 | Electric cooker and control method thereof |
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