Cooking utensil control method and cooking utensil

Abstract

The invention discloses a control method of a cooking utensil and the cooking utensil. The control method comprises the following steps: circularly heating according to a first period in a boiling maintaining stage until the duration of the boiling maintaining stage reaches a preset boiling maintaining duration or the cycle index of the first period reaches a preset cycle index. The first period comprises at least two second periods, and each second period comprises a heating period and a heat dissipation period. The heating time period comprises a plurality of continuous third periods, the heating duration is continuously heated and then the heating stop duration is continuously stopped in each third period, the duration ratio of the heating duration to the third periods is the heating ratio, the ratio of the difference value of the maximum heating ratio and the average heating ratio to the average heating ratio is smaller than or equal to a preset ratio, and in addition, the ratio of the maximum heating ratio to the average heating ratio is smaller than or equal to the preset ratio. The ratio of the difference value of the average heating ratio and the minimum heating ratio to the average heating ratio is smaller than or equal to the preset ratio. And heating is stopped in the heat dissipation period. Wherein the heat dissipation time period of the last second period is the longest one of all the heat dissipation time periods.

Description

Technical Field

[0001] The present application relates to the technical field of cooking appliances, and in particular to a control method for a cooking appliance and a cooking appliance adopting the control method. Background Art

[0002] After the cooking of the existing cooking appliance enters the boiling maintenance stage, the cooking firepower gradually decreases as the cooking time becomes longer. The adjustment of the cooking firepower in the boiling maintenance stage is often achieved by reducing the heating duty ratio within a single heating cycle. This will lead to a decrease in heating efficiency, an extension of the cooking time, and a deterioration of the rolling effect of the ingredients, affecting the user experience.

[0003] Therefore, a control method for a cooking appliance and a cooking appliance are needed to at least partially solve the above problems. Summary of the Invention

[0004] A series of simplified concepts are introduced in the Summary of the Invention section, which will be further described in detail in the Detailed Description section. The Summary of the Invention section of the present application does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0005] To at least partially solve the above problems, a first aspect of the present application provides a control method for a cooking appliance. The cooking appliance includes a heating device for heating ingredients. The cooking process of the cooking appliance includes a boiling maintenance stage, in which the ingredients are in a boiling state during at least part of the boiling maintenance stage. The control method includes:

[0006] During the boiling maintenance stage, making the heating device operate in a cycle according to a first period until the duration of the boiling maintenance stage reaches a preset boiling maintenance duration or the number of cycles of the first period reaches a preset number of cycles. Wherein, the first period includes at least two second periods, and the second period includes:

[0007] During the heating period, the heating period includes a number of consecutive third cycles. In each third cycle, the heating device is continuously operated for a heating duration and then continuously stopped for a stop duration. The sum of the duration value of the heating duration and the duration value of the stop duration is the duration value of the third cycle. The ratio of the duration value of the heating duration of each third cycle to the duration value of the third cycle is the heating ratio. The maximum value of all the heating ratios is the maximum heating ratio, the minimum value of all the heating ratios is the minimum heating ratio, and the average value of all the heating ratios is the average heating ratio. Among them, the absolute value of the difference between the maximum heating ratio and the average heating ratio divided by the average heating ratio is less than or equal to a preset ratio, and the absolute value of the difference between the minimum heating ratio and the average heating ratio divided by the average heating ratio is less than or equal to the preset ratio; and

[0008] The heat dissipation period, which is located after the heating period. During the heat dissipation period, the heating device is stopped from working.

[0009] Among them, the duration of the heat dissipation period of the last second cycle in each first cycle is the longest among the durations of all the heat dissipation periods in each first cycle.

[0010] According to the present application, during the boiling maintenance stage, during the heating period, the heating ratio is kept substantially constant, so that the heating power is substantially constant, which can improve the heating efficiency and make the ingredients boil sufficiently. During the boiling maintenance stage, the heat dissipation period is set to avoid overflowing the pot. Among them, after continuously heating for several second cycles, the duration of the heat dissipation period is extended to enable the cooking appliance to dissipate heat better, which can effectively avoid overflowing the pot.

[0011] Optionally,

[0012] The preset ratio is 3% to 8%; or

[0013] All the heating ratios are equal.

[0014] According to the present application, during the boiling maintenance stage, during the heating period, the heating ratio is kept constant or substantially constant, so that the heating power is constant or substantially constant, which can improve the heating efficiency and make the ingredients boil sufficiently.

[0015] Optionally, the heat dissipation period of the last second cycle in each first cycle includes a first heat dissipation period and a second heat dissipation period.

[0016] Furthermore, the duration of the heat dissipation period is adjustable.

[0017] According to the present application, the duration of the heat dissipation period can be adjusted, so that the duration of the entire boiling maintenance stage can be flexibly adjusted, or the actual heating duration can be adjusted. Among them, the duration of the heat dissipation period of the last second cycle is the longest, which consists of a first heat dissipation period and a second heat dissipation period. Therefore, the duration of the heat dissipation period of the last second cycle can be adjusted by adjusting the duration of the first heat dissipation period and / or the second heat dissipation period, and the control method is flexible.

[0018] Optionally,

[0019] When the cooking appliance executes the cooking function of cooking porridge, the initial value of the duration of at least one of the heat dissipation period, the first heat dissipation period, and the second heat dissipation period in each first cycle that is not the last second cycle is 20 to 90 seconds; and / or

[0020] When the cooking appliance executes the cooking function of making soup, the initial value of the duration of at least one of the heat dissipation period, the first heat dissipation period, and the second heat dissipation period in each first cycle that is not the last second cycle is 20 to 60 seconds.

[0021] According to the present application, the initial duration of the heat dissipation period can ensure that the cooking appliance dissipates heat sufficiently and avoid overflowing the pot. Compared with making soup, the thermal conductivity of porridge is larger and it is more difficult to dissipate heat, so the heat dissipation duration can be relatively longer.

[0022] Optionally, the control method further includes: adjusting the duration of at least one of the heat dissipation period, the first heat dissipation period, and the second heat dissipation period in each first cycle that is not the last second cycle according to the elapsed duration of the boiling maintenance stage.

[0023] According to the present application, the elapsed duration of the boiling maintenance stage will affect the residual heat of the cooking container. By adjusting the duration of the heat dissipation period according to this elapsed duration, overflowing the pot can be effectively avoided.

[0024] Optionally, the adjusting the duration of at least one of the heat dissipation period, the first heat dissipation period, and the second heat dissipation period in each first cycle that is not the last second cycle according to the elapsed duration of the boiling maintenance stage includes:

[0025] When the elapsed duration increases by a first preset duration increment each time, the duration of at least one of the heat dissipation period, the first heat dissipation period, and the second heat dissipation period in each first cycle that is not the last second cycle increases by a second preset duration increment.

[0026] Further,

[0027] The first preset duration increment is 5 to 13 minutes; and / or

[0028] The second preset duration increment is 3 to 9 seconds.

[0029] According to the present application, the longer the duration that the boiling stage is maintained, the higher the residual heat of the cooking container. Appropriately extending the duration of the heat dissipation period can effectively avoid boiling over.

[0030] Optionally,

[0031] The cooking appliance further includes a cooking container for holding the food and a bottom temperature sensor for detecting the bottom temperature of the cooking container;

[0032] The control method further includes: after the end of each of the first heat dissipation periods, adjusting the duration of the second heat dissipation period according to the detection value of the bottom temperature sensor.

[0033] According to the present application, in the heat dissipation period of the last second cycle, first ensure that the cooking appliance dissipates heat in the first heat dissipation period, and then adjust the duration of the second heat dissipation period, so as to adjust the duration of the entire boiling maintenance stage, or adjust the actual heating duration.

[0034] Optionally, the adjusting the duration of the second heat dissipation period according to the detection value of the bottom temperature sensor includes:

[0035] When the detection value of the bottom temperature sensor is less than the first preset temperature, reducing the duration of the second heat dissipation period by a third preset duration;

[0036] When the detection value of the bottom temperature sensor is greater than the first preset temperature, increasing the duration of the second heat dissipation period by a fourth preset duration.

[0037] Furthermore,

[0038] When the cooking appliance executes the cooking function of cooking porridge, the first preset temperature is 93 to 96 °C; and / or

[0039] When the cooking appliance executes the cooking function of making soup, the first preset temperature is 95 to 98 °C.

[0040] Optionally,

[0041] The third preset duration is 3 to 9 seconds; and / or

[0042] The fourth preset duration is 3 to 9 seconds.

[0043] According to the present application, after the heat dissipation in the first heat dissipation period is completed, the duration of the second heat dissipation period is adjusted according to the temperature of the cooking container. If the temperature of the cooking container is high, it indicates that the residual heat of the cooking container is high. Therefore, it is necessary to extend the heat dissipation duration to avoid overflowing the pot. If the temperature of the cooking container is low, it indicates that the residual heat of the cooking container is small, and the heat dissipation duration can be appropriately shortened, thereby shortening the duration of the boiling maintenance stage or increasing the heating duration as much as possible to fully cook the ingredients.

[0044] Optionally, the control method further includes:

[0045] making the duration of the heat dissipation period that is not the last second period in each first period not exceed a third preset maximum duration; and / or

[0046] making the duration of the first heat dissipation period in each first period not exceed a first preset maximum duration; and / or

[0047] making the duration of the second heat dissipation period in each first period not exceed a second preset maximum heat dissipation duration.

[0048] Furthermore,

[0049] at least one of the first preset maximum heat dissipation duration, the second preset maximum heat dissipation duration, and the third preset maximum duration is 80 to 100 seconds; and / or

[0050] the first preset maximum heat dissipation duration, the second preset maximum heat dissipation duration, and the third preset maximum duration are equal.

[0051] According to the present application, the duration of the heat dissipation period has an upper limit, which can ensure that the ingredients have sufficient heating time.

[0052] Optionally, the number of the third periods in the heating period is adjustable.

[0053] According to the present application, the number of the third periods is adjustable, so that the heating times of the ingredients can be flexibly controlled, avoiding overflowing the pot and fully cooking the ingredients.

[0054] Optionally,

[0055] the cooking appliance further includes a cooking container for holding the ingredients and a bottom temperature sensor for detecting the bottom temperature of the cooking container;

[0056] the control method further includes: after the end of each first heat dissipation period, adjusting the number of the third periods of at least one second period in the next first period according to the detection value of the bottom temperature sensor.

[0057] According to the present application, the heating times of the ingredients are flexibly adjusted according to the temperature of the cooking container, which can not only avoid overflowing of the pot but also ensure that the ingredients are fully cooked.

[0058] Optionally, adjusting the number of the third cycles in at least one of the second cycles in the next first cycle according to the detection value of the bottom temperature sensor includes:

[0059] When the detection value of the bottom temperature sensor is less than the first preset temperature, increasing the number of the third cycles in at least one of the second cycles in the next first cycle;

[0060] When the detection value of the bottom temperature sensor is greater than the first preset temperature, decreasing the number of the third cycles in at least one of the second cycles in the next first cycle.

[0061] Further, adjusting the number of the third cycles in at least one of the second cycles in the next first cycle according to the detection value of the bottom temperature sensor includes:

[0062] When the detection value of the bottom temperature sensor is less than the first preset temperature, increasing the number of the third cycles in at least one of the second cycles in the next first cycle by 1 or 2;

[0063] When the detection value of the bottom temperature sensor is greater than the first preset temperature, decreasing the number of the third cycles in at least one of the second cycles in the next first cycle by 1 or 2.

[0064] Optionally,

[0065] When the cooking appliance executes the cooking function of cooking porridge, the first preset temperature is 93 to 96 °C; and / or

[0066] When the cooking appliance executes the cooking function of making soup, the first preset temperature is 95 to 98 °C.

[0067] According to the present application, when the temperature of the cooking container is relatively low, it indicates that the residual heat of the cooking container is small, and the heating times can be appropriately increased to ensure that the ingredients are fully cooked; when the temperature of the cooking container is relatively high, it indicates that the residual heat of the cooking container is high, and the heating times are appropriately reduced to avoid overflowing of the pot.

[0068] Optionally,

[0069] When the cooking appliance executes the cooking function of cooking porridge, the initial number of the third cycles is 2 to 4; and / or

[0070] When the cooking appliance executes the cooking function of making soup, the initial number of the third cycles is 3 to 6.

[0071] According to the present application, porridge cooking is more likely to overflow the pot than soup cooking. Therefore, the number of continuous heating times for porridge cooking is less than that for soup cooking.

[0072] Optionally,

[0073] The duration value of the heat dissipation period that is not the last second period in each first period is less than or equal to the duration value of the first heat dissipation period; and / or

[0074] The duration value of the first heat dissipation period in each first period is less than the duration value of the second heat dissipation period.

[0075] According to the present application, by making the duration value of the heat dissipation period that is not the last second period in each first period less than or equal to the duration value of the first heat dissipation period, and / or making the duration value of the first heat dissipation period in each first period less than the duration value of the second heat dissipation period, it is ensured that the duration of the heat dissipation period of the last second period in each first period is the longest, so that the cooking appliance can dissipate heat sufficiently and avoid overflowing the pot.

[0076] Optionally,

[0077] When the cooking appliance executes the porridge cooking function, the heating duration is 6 to 12 seconds, and / or the heating ratio is 0.2 to 0.4; and / or

[0078] When the cooking appliance executes the soup cooking function, the heating duration is 9 to 16 seconds, and / or the heating ratio is 0.3 to 0.6.

[0079] According to the present application, porridge cooking is more likely to overflow the pot than soup cooking. Therefore, the average heating power during porridge cooking is less than the average heating power during soup cooking.

[0080] Optionally,

[0081] The average heating power of each third period is 200 to 500 W; and / or

[0082] The duration value of the third period remains unchanged.

[0083] According to the present application, during the boiling maintenance stage, the ingredients can be heated at a relatively small power between 200 and 500 W in a substantially constant manner without reducing the heating power, thereby ensuring the heating efficiency. Keeping the duration value of the third period unchanged can simplify the control.

[0084] The second aspect of the present application provides a cooking appliance, which includes:

[0085] A cooking container for holding ingredients;

[0086] A heating device for heating the cooking container;

[0087] A bottom temperature sensor for detecting the temperature of the bottom of the cooking container; and

[0088] A control device, which is electrically connected to the heating device and the bottom temperature sensor to obtain the detection value of the bottom temperature sensor and control the operation of the heating device, wherein the control device is configured to execute the steps of the control method according to any one of the technical solutions in the first aspect.

[0089] According to the present application, during the boiling maintenance stage, during the heating period, the heating ratio is kept substantially constant, so that the heating power is substantially constant, which can improve the heating efficiency and make the food materials boil sufficiently. During the boiling maintenance stage, overflow of the pot is avoided by setting a heat dissipation period. Among them, after continuously heating for several second cycles, the duration of the heat dissipation period is extended to enable the cooking appliance to dissipate heat better, which can effectively avoid overflow of the pot.

[0090] Optionally, the heating device is configured as a heating plate.

[0091] According to the present application, the heating plate still has relatively large residual heat after power-off. During the boiling maintenance stage, a relatively short heat dissipation time is set after continuously heating for several third cycles, and a relatively long heat dissipation time is set after continuously heating for several second cycles. The heat dissipation time is alternately long and short to dissipate heat from the heating plate and avoid overflow of the pot. Description of the Drawings

[0092] The following drawings of the present application are hereby incorporated as part of the present application for understanding the present application. The drawings show representative embodiments of the present application and are used to explain the principles of the present application rather than to limit the present application.

[0093] In the drawings:

[0094] Figure 1 is a schematic side cross-sectional view of a cooking appliance according to a specific embodiment of the present application;

[0095] Figure 2 is a schematic flow chart of a control method of a cooking appliance according to a specific embodiment of the present application;

[0096] Figure 3 is Figure 1 a specific timing example of a first cycle in the boiling maintenance stage of the cooking appliance shown, where one first cycle includes three second cycles and one second cycle includes two third cycles.

[0097] Description of the Reference Numerals:

[0098] 10: cooking pot body

[0099] 11: Accommodating cavity

[0100] 20: Cover body

[0101] 30: Inner pot

[0102] 31: Placing cavity

[0103] 32: Bottom wall

[0104] 33: Side wall

[0105] 70: Heating device

[0106] 80: Bottom temperature sensor

[0107] 100: Cooking appliance Detailed implementation manners

[0108] In the following description, a large number of specific details are given to provide a more thorough understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present application, some technical features known to the art are not described.

[0109] In order to thoroughly understand the present application, a detailed description will be presented in the following. It should be understood that these implementation manners are provided to make the disclosure of the present application thorough and complete, and to fully convey the concept of these exemplary implementation manners to those of ordinary skill in the art. Obviously, the implementation of the present application is not limited to the specific details familiar to those skilled in the art. The preferred implementation manners of the present application are described in detail below. However, in addition to these detailed descriptions, the present application can also have other implementation manners.

[0110] The ordinal numbers such as "first" and "second" cited in the present application are only identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" does not imply the existence of a "second component" by itself, and the term "second component" does not imply the existence of a "first component" by itself. The use of words such as "first", "second", and "third" does not represent any order, and these words can be interpreted as names.

[0111] It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer" and similar expressions used in the present application are only for the purpose of illustration and are not restrictive.

[0112] In this article, "equal", "same", etc. are not strict mathematical and / or geometric meanings, and also include the allowable errors that can be understood by those skilled in the art and are allowed in manufacturing or using, etc.

[0113] Unless otherwise specified, the numerical ranges in this document include not only the entire range between its two endpoints, but also several sub-ranges contained therein.

[0114] This application provides a cooking appliance and a control method therefor.

[0115] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings.

[0116] As Figure 1 shown, in a preferred embodiment, the cooking appliance 100 according to a preferred embodiment of the present application mainly includes a pot body 10 and a lid body 20. The lid body 20 is pivotally connected above the pot body 10 and is used to cover the pot body 10. For example, the lid body 20 is pivotally connected to the pot body 10. The pot body 10 can be configured in the shape of a rounded cuboid or any other suitable shape. A cooking container 30, such as an inner pot 30, is provided in the pot body 10. As shown in the figure, the pot body 10 is provided with a receiving cavity 11, and the inner pot 30 is removably disposed in the receiving cavity 11. The inner pot 30 includes a bottom wall 32 and a side wall 33 extending upward from the edge of the bottom wall 32. The bottom wall 32 and the side wall 33 enclose a containing cavity 31 (cooking space) for containing food ingredients.

[0117] A heating device 70, a control device (not shown), and a bottom temperature sensor 80 are also provided in the pot body 10. The heating device 70 is disposed below the receiving cavity 11 to heat the food in the inner pot 30. The heating device 70 is, for example, configured as a heating plate. The control device can be, for example, a micro control unit (MCU) for implementing cooking control of the cooking appliance 100. The bottom temperature sensor 80 is used to detect the bottom temperature of the pot body 10, that is, the bottom temperature of the inner pot 30, that is, the bottom temperature of the cooking appliance 100. The bottom temperature sensor 80 can be disposed at the bottom of the receiving cavity 11. Both the heating device 70 and the bottom temperature sensor 80 are electrically connected to the control device. The bottom temperature sensor 80 feeds back the sensed temperature to the control device, so that the control device can achieve more precise control of, for example, the heating device 70 based on the temperature information.

[0118] Specifically, the cooking process of the cooking appliance 100 (such as the process of cooking porridge or making soup) may sequentially include five stages: a water absorption stage, a boiling-up stage, a boiling-maintaining stage, and a heat preservation stage. In the water absorption stage, the ingredients fully absorb water to improve the taste. In the boiling-up stage, high heat is used to heat to a temperature close to boiling, and then boiling is maintained in the boiling-maintaining stage to cook the ingredients. Among them, during at least part of the boiling-maintaining stage, the ingredients are in a boiling state. Finally, heat preservation is carried out in the heat preservation stage so that the user can eat hot food. It can be understood that the cooking process of the cooking appliance 100 is specifically controlled by the control device of the cooking appliance 100, and various control methods are also executed by the control device.

[0119] As Figure 2 shown, preferably, in the boiling-maintaining stage, the control device makes the heating device 70 operate in a cycle according to the first cycle T1 until the duration of the boiling-maintaining stage reaches a preset boiling-maintaining duration or the number of cycles of the first cycle T1 reaches a preset number of cycles. For example, the preset boiling-maintaining duration can be 20 to 45 minutes. The duration of the first cycle T1 can be 3 to 6 minutes. The number of cycles i1 of the first cycle T1 can be 4 to 15 times.

[0120] Specifically, each first cycle T1 includes at least two second cycles T2. The number i2 of second cycles T2 in one first cycle T1 can be, for example, 2 to 4. Each second cycle T2 includes a heating period TH and a heat dissipation period TS. The heating period TH includes several (i3) consecutive third cycles T3. In each third cycle T3, the control device makes the heating device 70 first continuously work for a heating duration and then continuously stop working for a stop duration. Among them, the sum of the duration value th of the heating duration and the duration value ts of the stop duration is the duration value t3 of the duration of the third cycle T3. The heat dissipation period TS is located after the heating period TH. In the heat dissipation period TS, the control device makes the heating device 70 stop working.

[0121] The timing diagram of the first cycle T1 in the boiling-maintaining stage is as Figure 3 shown.

[0122] During the heating period TH of the second cycle T2, the ratio of the duration value th of the heating duration of each third cycle T3 to the duration value t3 of the duration of the third cycle is the heating ratio r. Therefore, each heating period TH has multiple heating ratios r, and each first cycle T1 has multiple heating ratios r. The maximum value of all the heating ratios r is the maximum heating ratio rmax, the minimum value of all the heating ratios r is the minimum heating ratio rmin, and the average value of all the heating ratios r is the average heating ratio rmean. Preferably, the cooking appliance 100 is configured such that: the absolute value of the difference between the maximum heating ratio rmax and the average heating ratio rmean divided by the average heating ratio rmean is less than or equal to a preset ratio rp, and the absolute value of the difference between the minimum heating ratio rmin and the average heating ratio rmean divided by the average heating ratio rmean is less than or equal to the preset ratio rp. For example, the preset ratio rp is 3% to 8%. More preferably, the cooking appliance 100 is configured such that all the heating ratios r are equal.

[0123] Preferably, the cooking appliance 100 is configured such that the duration of the heat dissipation period TS of the last second cycle T2 in each first cycle T1 is the longest among the durations of all the heat dissipation periods TS in each first cycle T1.

[0124] That is to say, during the boiling maintenance stage, the cooking appliance 100 operates at a constant or substantially constant heating power, so that the ingredients can boil sufficiently. After continuously heating several (such as Figure 3 shown as 2) third cycles T3, the cooking appliance 100 dissipates heat briefly to avoid boiling over. After continuously operating for several second cycles T2 (such as Figure 3 shown as 3), the heat dissipation duration of the cooking appliance 100 is extended, so that the cooking container 30 can further dissipate the residual heat and avoid boiling over after reheating. Compared with the method of reducing the heating duty cycle within a single heating cycle in the background art, the present application ensures that the heating duty cycle within a single heating cycle T3 is constant or substantially constant, so that the ingredients can obtain sufficient heat when heated and thus be cooked sufficiently. At the same time, by flexibly setting the heat dissipation link, the heat dissipation duration is combined with long and short, which can avoid boiling over.

[0125] Preferably, the average heating power of each third cycle T3 is 200 to 500 W. Preferably, the duration t3 of the third cycle T3 remains unchanged. Preferably, when the cooking appliance 100 executes the cooking function of cooking porridge, the heating duration th is, for example, 6 to 12 seconds, and the heating ratio r is, for example, 0.2 to 0.4. Preferably, when the cooking appliance 100 executes the cooking function of making soup, the heating duration th is, for example, 9 to 16 seconds, and the heating ratio is, for example, 0.3 to 0.6. Since the soup contains more water than the porridge and is relatively less likely to overflow, the average heating power can be appropriately increased.

[0126] In a specific example, the rated power of the cooking appliance 100 is 750 W. The second period T2 includes two third periods T3, and the preset ratio rp is 5%. In the first third period T3, it heats for 10 seconds and stops heating for 15 seconds. The heating ratio r is 10 / (10 + 15) = 28.6%. The average power of this third period T3 is 750 W × 28.6% = 214 W. In the second third period T3, it heats for 11 seconds and stops heating for 14 seconds. The heating ratio r is 11 / (11 + 14) = 31.4%. The average power of this third period T3 is 750 W × 31.4% = 236 W. Then, the maximum heating ratio rmax is 31.4%, the minimum heating ratio rmin is 28.6%, and the average heating ratio rmean is (31.4% + 28.6%) / 2 = 30%. At this time, (rmax - rmean) / rmean = (31.4% - 30%) / 30% = 4.7% < 5%, (rmean - rmin) / rmean = (30% - 28.6%) / 30% = 4.7% < 5%.

[0127] In another specific example, the rated power of the cooking appliance 100 is 500 W. The second period T2 includes two third periods T3, and the preset ratio rp is 6%. In the first third period T3, it heats for 8 seconds and stops heating for 12 seconds. The heating ratio r is 8 / (8 + 12) = 40%. The average power of this third period T3 is 500 W × 40% = 200 W. In the second third period T3, it heats for 9 seconds and stops heating for 11 seconds. The heating ratio r is 9 / (9 + 11) = 45%. The average power of this third period T3 is 500 W × 45% = 225 W. Then, the maximum heating ratio rmax is 45%, the minimum heating ratio rmin is 40%, and the average heating ratio rmean is (40% + 45%) / 2 = 42.5%. Then, (rmax - rmean) / rmean = (45% - 42.5%) / 42.5% = 5.9% < 6%, (rmean - rmin) / rmean = (42.5% - 40%) / 42.5% = 5.9% < 6%.

[0128] Preferably, the heat dissipation period TS of the last second period T2 in each first period T1 includes a first heat dissipation period TS1 and a second heat dissipation period TS2. That is, the longest heat dissipation period TS in each first period T1 includes a first heat dissipation period TS1 and a second heat dissipation period TS2. For the convenience of description, hereinafter, the heat dissipation period TS of the second period T2 that is not the last one in each first period T1 is referred to as the third heat dissipation period TS3.

[0129] Preferably, the duration of the heat dissipation period TS is adjustable. In other words, at least one of the first heat dissipation period TS1, the second heat dissipation period TS2, and the third heat dissipation period TS3 is adjustable. The control device sets an initial duration value for each of the first heat dissipation period TS1, the second heat dissipation period TS2, and the third heat dissipation period TS3, and then adjusts it based on this initial duration value.

[0130] For example, when the cooking appliance 100 executes the cooking function of cooking porridge, the initial value of the duration of at least one of the third heat dissipation period TS3, the first heat dissipation period TS1, and the second heat dissipation period TS2 in each first cycle T1 is 20 to 90 seconds. When the cooking appliance 100 executes the cooking function of making soup, the initial value of the duration of at least one of the third heat dissipation period TS3, the first heat dissipation period TS1, and the second heat dissipation period TS2 in each first cycle is 20 to 60 seconds. Since the thermal conductivity of soup is smaller than that of porridge and it is easier to dissipate heat and cool down, the heat dissipation duration can be relatively shorter.

[0131] Preferably, the control device adjusts the duration of at least one of the third heat dissipation period TS3, the first heat dissipation period TS1, and the second heat dissipation period TS2 in each first cycle T1 according to the duration that the boiling maintenance stage has lasted. For example, when the duration that the boiling maintenance stage has lasted increases by the first preset duration increment, the duration of at least one of the third heat dissipation period TS3, the first heat dissipation period TS1, and the second heat dissipation period TS2 in each first cycle increases by the second preset duration increment. The first preset duration increment is, for example, 5 to 13 minutes. The second preset duration increment is, for example, 3 to 9 seconds. Along with the extension of the boiling maintenance stage, the number of times the cooking container 30 is heated increases, and the residual heat of the cooking container 30 and the ingredients increases. Therefore, it is necessary to gradually extend the heat dissipation time to avoid overflowing the pot.

[0132] For example, the initial duration of the third heat dissipation period TS3 is 20 seconds, the first preset duration increment is, for example, 5 minutes, and the second preset duration increment is, for example, 3 seconds. Within 0 to 5 minutes of the boiling maintenance stage, the value of the third heat dissipation period TS3 is the initial value of 20 seconds; within 5 to 10 minutes of the boiling maintenance stage, the value of the third heat dissipation period TS3 increases by one second preset duration increment based on the initial value and is 23 seconds; within 10 to 15 minutes of the boiling maintenance stage, the value of the third heat dissipation period TS3 increases by two second preset duration increments based on the initial value and is 26 seconds, and so on.

[0133] Preferably, after each first heat dissipation period TS1 ends, the control device adjusts the duration of the second heat dissipation period TS2 according to the detection value of the bottom temperature sensor 80. For example, after each first heat dissipation period TS1 ends, when the detection value of the bottom temperature sensor 80 is less than the first preset temperature, the duration of the second heat dissipation period TS2 is reduced by a third preset duration; when the detection value of the bottom temperature sensor 80 is greater than the first preset temperature, the duration of the second heat dissipation period TS2 is increased by a fourth preset duration. After the first heat dissipation period TS1 ends, if the temperature of the cooking container 30 is still relatively high, it is easy to overflow the pot when reheating, so the duration of the second heat dissipation period TS2 is appropriately extended to further dissipate heat and cool down; if the temperature of the cooking container 30 is not very high, the probability of overflowing the pot when reheating is reduced, so the duration of the second heat dissipation period TS2 is appropriately shortened.

[0134] The third preset duration is, for example, 3 to 9 seconds. The fourth preset duration is, for example, 3 to 9 seconds. When the cooking appliance 100 executes the cooking function of cooking porridge, the first preset temperature is, for example, 93 to 96 °C. When the cooking appliance 100 executes the cooking function of making soup, the first preset temperature is, for example, 95 to 98 °C. Since the soup dissipates heat faster than the porridge, its temperature can be relatively higher.

[0135] To ensure that the ingredients are fully heated, the control device sets an upper limit value for the duration of at least one of the first heat dissipation period TS1, the second heat dissipation period TS2, and the third heat dissipation period TS3, that is, the value of at least one of the first heat dissipation period TS1, the second heat dissipation period TS2, and the third heat dissipation period TS3 cannot exceed this upper limit value, that is, the heat dissipation duration cannot be too long, otherwise it is not conducive to cooking the ingredients. For example, the duration of the first heat dissipation period TS1 in each first cycle T1 can be made not to exceed the first preset maximum duration. The duration of the second heat dissipation period TS2 in each first cycle T1 can also be made not to exceed the second preset maximum heat dissipation duration. Of course, the duration of the third heat dissipation period TS3 in each first cycle T1 can also be made not to exceed the third preset maximum duration. Among them, at least one of the first preset maximum heat dissipation duration, the second preset maximum heat dissipation duration, and the third preset maximum heat dissipation duration is, for example, 80 to 100 seconds. The first preset maximum heat dissipation duration, the second preset maximum heat dissipation duration, and the third preset maximum heat dissipation duration can also all be 80 to 100 seconds. The first preset maximum heat dissipation duration, the second preset maximum heat dissipation duration, and the third preset maximum heat dissipation duration can be equal to each other.

[0136] Preferably, the duration value of the third heat dissipation period TS3 in each first period T1 is less than or equal to the duration value of the first heat dissipation period TS1. Thus, it can be ensured that the duration of the heat dissipation period TS of the last second period T2 is the longest. Preferably, the duration value of the first heat dissipation period TS1 in each first period T1 is less than the duration value of the second heat dissipation period TS2. Thus, the cooking appliance 100 can be fully cooled before starting the next first period T1.

[0137] In the present application, except that the duration of the external heat dissipation period TS can be adjusted, the number of the third periods T3 in each heating period TH can also be adjusted. For example, after each first heat dissipation period TS1 ends, the control device adjusts the number of the third periods T3 of at least one second period T2 in the next first period T1 according to the detection value of the bottom temperature sensor 80.

[0138] Specifically, after the first heat dissipation period TS1 of the last second period T2 in the previous first period T1 ends, when the detection value of the bottom temperature sensor 80 is less than the first preset temperature, the control device increases the number of the third periods T3 of at least one second period T2 in the next first period T1, for example, increases by 1 or 2; when the detection value of the bottom temperature sensor 80 is greater than the first preset temperature, the number of the third periods T3 of at least one second period T2 in the next first period T1 is decreased, for example, decreased by 1 or 2; when the detection value of the bottom temperature sensor 80 is equal to the first preset temperature, the number of the third periods T3 of all the second periods T2 in the next first period T1 is kept equal to the number in the previous first period T1. After the first heat dissipation period TS1 ends, if the temperature of the cooking container 30 is still relatively high, it is easy to overflow when reheating, so the number of heating times in the next cycle is appropriately reduced to avoid overflow; if the temperature of the cooking container 30 is not very high, it indicates that the heating may be insufficient before heat dissipation, so the number of heating times in the next cycle is appropriately increased to make the food materials fully heated.

[0139] As mentioned above, when the cooking appliance 100 executes the cooking function of cooking porridge, the first preset temperature is, for example, 93 to 96 °C. When the cooking appliance 100 executes the cooking function of stewing soup, the first preset temperature is, for example, 95 to 98 °C.

[0140] It can be understood that the control device adjusts the number of the third periods T3 on the basis of the initial value of the number. When the cooking appliance 100 executes the cooking function of cooking porridge, the initial number of the third periods T3 is 2 to 4. When the cooking appliance 100 executes the cooking function of stewing soup, the initial number of the third periods T3 is 3 to 6. Since the soup has more water content than the porridge and is relatively not easy to overflow, the number of heating times can be increased.

[0141] The control method of the cooking appliance according to the present application can be applied to the cooking process of cooking porridge or soup, and can also be applied to the cooking process of simmering rice. When performing the simmering rice task, a simmering stage is usually also set between the boiling stage and the warming stage to further dry the free moisture in the ingredients and further cook the ingredients.

[0142] The processes and steps described in all of the above preferred embodiments are merely examples. Unless adverse effects occur, various processing operations can be performed in an order different from the order of the above processes. The order of the steps of the above processes can also be increased, combined, or deleted according to actual needs.

[0143] When understanding the scope of the present application, as used herein, the term "comprising" and its derivatives are intended to be open-ended terms that specify the presence of the recited features, elements, components, groups, wholes, and / or steps, but do not exclude the presence of other unrecited features, elements, components, groups, wholes, and / or steps. This concept also applies to words with similar meanings, such as the terms "including", "having", and their derivatives.

[0144] As used herein, the term "attached" or "attachment" includes: a configuration in which an element is directly fixed to another element by directly fixing the element to the other element; a configuration in which an element is indirectly fixed to another element by fixing the element to an intermediate member, and the intermediate member is in turn fixed to the other element; and a configuration in which one element is integral with another element, that is, one element is substantially a part of the other element. This definition also applies to words with similar meanings, such as "connected", "coupled", "joined", "mounted", "adhered", "fixed", and their derivatives. Finally, degree terms such as "substantially", "about", and "approximately" used herein represent the amount of deviation that modifies the term such that the final result will not change significantly.

[0145] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present application. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application. The features described in one embodiment herein can be applied alone or in combination with other features to another embodiment, unless the feature is not applicable or otherwise stated in that other embodiment.

[0146] The present application has been described by the above embodiments, but it should be understood that the above embodiments are only for the purpose of illustration and example, and are not intended to limit the present application to the scope of the described embodiments. In addition, those skilled in the art can understand that the present application is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the present application, and these variations and modifications all fall within the scope claimed by the present application.

Claims

1. A control method for a cooking appliance, the cooking appliance including a heating device for heating food materials, and the cooking process of the cooking appliance including a boiling maintenance stage, wherein the food materials are in a boiling state during at least part of the boiling maintenance stage. Characterized in that: The control method includes: During the boiling maintenance stage, making the heating device work in a cycle according to a first period until the duration of the boiling maintenance stage reaches a preset boiling maintenance duration or the number of cycles of the first period reaches a preset number of cycles. Wherein, the first period includes at least two second periods, and the second period includes: A heating period, the heating period including a plurality of consecutive third periods. In each third period, making the heating device continuously work for a heating duration and then continuously stop working for a stop duration, wherein the sum of the duration values of the heating duration and the stop duration is the duration value of the third period. The ratio of the duration value of the heating duration of each third period to the duration value of the third period is the heating ratio. The maximum value of all the heating ratios is the maximum heating ratio, the minimum value of all the heating ratios is the minimum heating ratio, and the average value of all the heating ratios is the average heating ratio. Wherein, the absolute value of the difference between the maximum heating ratio and the average heating ratio and the ratio of the average heating ratio is less than or equal to a preset ratio, and the absolute value of the difference between the minimum heating ratio and the average heating ratio and the ratio of the average heating ratio is less than or equal to the preset ratio; and A heat dissipation period, located after the heating period, and making the heating device stop working during the heat dissipation period. Wherein, the duration of the heat dissipation period of the last second period in each first period is the longest among the durations of all the heat dissipation periods in each first period.

2. The control method according to claim 1, Characterized in that: The preset ratio is 3% to 8%; or All the heating ratios are equal.

3. The control method according to claim 1, Characterized in that: The heat dissipation period of the last second period in each first period includes a first heat dissipation period and a second heat dissipation period.

4. The control method according to claim 3, Characterized in that: The duration of the heat dissipation period is adjustable.

5. The control method according to claim 4, Characterized in that: When the cooking appliance executes the cooking function of cooking porridge, the initial value of the duration of at least one of the heat dissipation periods, the first heat dissipation period, and the second heat dissipation period that are not the last second period in each first period is 20 to 90 seconds; and / or When the cooking appliance executes the cooking function of making soup, the initial value of the duration of at least one of the heat dissipation periods, the first heat dissipation period, and the second heat dissipation period that are not the last second period in each first period is 20 to 60 seconds.

6. The control method according to claim 4, Characterized in that: The control method further includes: adjusting the duration of at least one of the heat dissipation period, the first heat dissipation period, and the second heat dissipation period in each of the first cycles that is not the last second cycle according to the duration that the boiling maintenance stage has lasted.

7. The control method according to claim 6, wherein, the adjusting the duration of at least one of the heat dissipation period, the first heat dissipation period, and the second heat dissipation period in each of the first cycles that is not the last second cycle according to the duration that the boiling maintenance stage has lasted includes: when the duration that has lasted increases by a first preset duration increment each time, the duration of at least one of the heat dissipation period, the first heat dissipation period, and the second heat dissipation period in each of the first cycles that is not the last second cycle increases by a second preset duration increment.

8. The control method according to claim 7, wherein, the first preset duration increment is 5 to 13 minutes; and / or the second preset duration increment is 3 to 9 seconds.

9. The control method according to claim 4, wherein, the cooking appliance further includes a cooking container for holding the food and a bottom temperature sensor for detecting the bottom temperature of the cooking container; the control method further includes: after the end of each of the first heat dissipation periods, adjusting the duration of the second heat dissipation period according to the detection value of the bottom temperature sensor.

10. The control method according to claim 9, wherein, the adjusting the duration of the second heat dissipation period according to the detection value of the bottom temperature sensor includes: when the detection value of the bottom temperature sensor is less than a first preset temperature, reducing the duration of the second heat dissipation period by a third preset duration; when the detection value of the bottom temperature sensor is greater than the first preset temperature, increasing the duration of the second heat dissipation period by a fourth preset duration.

11. The control method according to claim 10, wherein, when the cooking appliance executes the cooking function of cooking porridge, the first preset temperature is 93 to 96 °C; and / or when the cooking appliance executes the cooking function of making soup, the first preset temperature is 95 to 98 °C.

12. The control method according to claim 10, wherein, the third preset duration is 3 to 9 seconds; and / or the fourth preset duration is 3 to 9 seconds.

13. The control method according to claim 4, wherein, the control method further includes: making the duration of the heat dissipation period in each of the first cycles that is not the last second cycle not exceed a third preset maximum duration; and / or making the duration of the first heat dissipation period in each of the first cycles not exceed a first preset maximum duration; and / or making the duration of the second heat dissipation period in each of the first cycles not exceed a second preset maximum heat dissipation duration.

14. The control method according to claim 13, wherein, At least one of the first preset maximum heat dissipation duration, the second preset maximum heat dissipation duration, and the third preset maximum heat dissipation duration is 80 to 100 seconds; and / or The first preset maximum heat dissipation duration, the second preset maximum heat dissipation duration, and the third preset maximum heat dissipation duration are equal.

15. The control method according to claim 3, wherein, The number of the third cycles in the heating period is adjustable.

16. The control method according to claim 15, wherein, The cooking appliance further includes a cooking container for holding the food material and a bottom temperature sensor for detecting the bottom temperature of the cooking container; The control method further includes: after each of the first heat dissipation periods ends, adjusting the number of the third cycles of at least one of the second cycles in the next first cycle according to the detection value of the bottom temperature sensor.

17. The control method according to claim 16, wherein, The adjusting the number of the third cycles of at least one of the second cycles in the next first cycle according to the detection value of the bottom temperature sensor includes: When the detection value of the bottom temperature sensor is less than a first preset temperature, increasing the number of the third cycles of at least one of the second cycles in the next first cycle; When the detection value of the bottom temperature sensor is greater than the first preset temperature, decreasing the number of the third cycles of at least one of the second cycles in the next first cycle.

18. The control method according to claim 17, wherein, The adjusting the number of the third cycles of at least one of the second cycles in the next first cycle according to the detection value of the bottom temperature sensor includes: When the detection value of the bottom temperature sensor is less than a first preset temperature, increasing the number of the third cycles of at least one of the second cycles in the next first cycle by 1 or 2; When the detection value of the bottom temperature sensor is greater than the first preset temperature, decreasing the number of the third cycles of at least one of the second cycles in the next first cycle by 1 or 2.

19. The control method according to claim 17, wherein, When the cooking appliance executes the cooking function of cooking porridge, the first preset temperature is 93 to 96 °C; and / or When the cooking appliance executes the cooking function of making soup, the first preset temperature is 95 to 98 °C.

20. The control method according to claim 15, wherein, When the cooking appliance executes the cooking function of cooking porridge, the initial number of the third cycles is 2 to 4; and / or When the cooking appliance executes the cooking function of making soup, the initial number of the third cycles is 3 to 6.

21. The control method according to claim 3, wherein, The duration value of the heat dissipation period of the second cycle that is not the last one in each first cycle is less than or equal to the duration value of the first heat dissipation period; and / or The duration value of the first heat dissipation period in each of the first cycles is less than the duration value of the second heat dissipation period.

22. The control method according to claim 1, wherein, when the cooking appliance executes the cooking function of cooking porridge, the heating duration is 6 to 12 seconds, and / or, the heating ratio is 0.2 to 0.4; and / or when the cooking appliance executes the cooking function of stewing soup, the heating duration is 9 to 16 seconds, and / or, the heating ratio is 0.3 to 0.

6.

23. The control method according to any one of claims 1 to 22, wherein, the average heating power of each of the third cycles is 200 to 500 W; and / or the duration value of the third cycle remains unchanged.

24. A cooking appliance, wherein, comprising: a cooking container for containing food ingredients; a heating device for heating the cooking container; a bottom temperature sensor for detecting the temperature of the bottom of the cooking container; and a control device, the control device being electrically connected to the heating device and the bottom temperature sensor to obtain the detection value of the bottom temperature sensor and control the operation of the heating device, wherein the control device is configured to execute the steps of the control method according to any one of claims 1 to 23.

25. The cooking appliance according to claim 24, wherein, the heating device is configured as a heating plate.

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