Electric cooker and control method thereof

Abstract

The invention discloses an electric cooker and a control method thereof.The electric cooker comprises a cooker body and a cooker cover, a control unit is arranged on the cooker body, a heating cavity is formed in the cooker body, and the electric cooker further comprises an inner cooker component arranged above the heating cavity and used for containing food materials; the water tank is communicated with the inner pot component and used for supplying water to the inner pot component or receiving water discharged by the inner pot component; the water level sensing device is connected with the control unit and used for detecting the water level of the inner pot component; the conductivity detection device is connected with the control unit and used for detecting the conductivity value of the food materials in the cooking process. The water level of the inner pot component is detected through the water level sensing device, the automatic water adding or draining effect is achieved, and the problem that the water amount needs to be manually controlled is solved. In addition, the electric conductivity value of the food materials in the cooking process is detected through the electric conductivity detection device so as to recognize the cooking state of the food materials, the whole cooking process is regulated and controlled, and therefore the cooking effect of the electric cooker is improved.

Description

Technical Field

[0001] The invention relates to the technical field of electric rice cookers, and in particular to an electric rice cooker and a control method thereof. Background Art

[0002] As people have higher standards for food, they also have higher requirements for the functions of rice cookers. Currently, when using rice cookers, users generally choose the type of rice and cook it based on their experience. However, for different types of rice, in order to ensure the best taste, the steaming time and soaking time are set differently. However, it is impossible to accurately control the steaming time and soaking time based on user experience, which results in the final steamed rice not having the best taste.

[0003] In this regard, patent document CN220713637U discloses an electric rice cooker with automatic water addition and drainage, which uses a valve body and a drainage pump to inject water into the inner pot to wash the rice. After washing the rice, the drainage pump can automatically pump out the water. The whole process does not require manual water addition and pouring, which is convenient and quick to use. However, this solution can only achieve automatic water addition and drainage, and cannot control the amount of water for steaming rice, which has the risk of too much or too little water resulting in a general cooking effect. Patent document CN109259608A discloses a method for accurately adding water to a rice cooker and an electric rice cooker, which weighs the rice in the rice storage tray, performs image recognition on the rice in the rice storage tray, judges the type of rice, and then determines the range of water to be added according to the type, weight and cooking mode of the rice. However, this solution determines the amount of water by weighing and identifying the type of rice, and cannot reasonably control the hardness of the rice and the thickness of the porridge according to user needs. In addition, this solution cannot control the overall cooking process, which will make the final cooking effect unreliable. Therefore, how to improve the cooking effect of the rice cooker and ensure that the cooking result is stable and reliable is a problem that technicians in this field need to solve. Summary of the invention

[0004] The embodiment of the present invention provides an electric rice cooker and a control method thereof, aiming to improve the cooking effect of the electric rice cooker and ensure that the cooking result is stable and reliable.

[0005] An embodiment of the present invention provides an electric rice cooker for cooking food, the electric rice cooker comprising a pot body and a pot cover, the pot body is provided with a control unit, the pot body is provided with a heating chamber, and the electric rice cooker further comprises:

[0006] An inner pot component is arranged above the heating cavity and is used to place the food;

[0007] a water tank, connected to the inner pot part, for supplying water to the inner pot part or receiving water discharged from the inner pot part;

[0008] A water level sensing device, connected to the control unit, for detecting the water level of the inner pot component;

[0009] The conductivity detection device is connected to the control unit and is used to detect the conductivity value of the food during the cooking process.

[0010] Furthermore, it also includes a filter pot component arranged above the inner pot component, and a plurality of filter holes are opened on the bottom and side of the filter pot component.

[0011] Furthermore, the conductivity detection device is arranged between the inner pot component and the filter pot component.

[0012] Furthermore, the water level sensing device is provided in plurality, and the plurality of water level sensing devices are respectively provided on the pot cover and the inner pot component.

[0013] Furthermore, a water tank cavity is provided inside the pot body, the water tank cavity is located on the side of the heating cavity, and the water tank is installed in the water tank cavity.

[0014] Furthermore, one side of the water tank is connected to the inner pot part through a first water inlet and outlet part, and the other side of the water tank is connected to the outside through a second water inlet and outlet part.

[0015] Further, the water tank includes a water inlet tank and a water outlet tank located below the water inlet tank;

[0016] The first water inlet and outlet component includes a first water inlet portion and a first water outlet portion, the first water inlet portion is arranged between the water inlet box and the inner pot component, and the first water outlet portion is arranged between the water outlet box and the inner pot component;

[0017] The second water inlet and outlet component includes a second water inlet portion and a second water outlet portion, the second water inlet portion is arranged between the water inlet box and the outside, and the second water outlet portion is arranged between the water outlet box and the outside.

[0018] Furthermore, a heating component is arranged on the outer side of the inner pot component for providing heat to the inner pot component.

[0019] The embodiment of the present invention further provides a rice cooker control method, which is applied to the rice cooker as described in any one of the above items, and the method comprises:

[0020] When cooking food, the water level sensing device detects the position of food on the inner pot part, and controls the water tank to supply water to the inner pot part to a set position according to the detection result;

[0021] Starting a preset steaming process and detecting the conductivity value in the inner pot component by the conductivity detection device;

[0022] The cooking process is controlled according to the conductivity value.

[0023] Furthermore, controlling the cooking process according to the conductivity value includes:

[0024] In response to a first steaming instruction from a user, presetting a conductivity ratio according to the first steaming instruction; or, in response to an automatically generated second steaming instruction, presetting a conductivity threshold according to the second steaming instruction;

[0025] The cooking process is controlled by combining the conductivity value with the conductivity ratio or combining the conductivity value with the conductivity threshold.

[0026] The embodiment of the present invention provides an electric rice cooker and a control method thereof, the electric rice cooker is used for steaming food materials, the electric rice cooker comprises a pot body and a pot cover, the pot body is provided with a control unit, the interior of the pot body is provided with a heating chamber, the electric rice cooker further comprises: an inner pot part, which is provided above the heating chamber and is used to place the food materials; a water tank, which is connected with the inner pot part and is used to supply water to the inner pot part or receive water discharged from the inner pot part; a water level sensing device, which is connected with the control unit and is used to detect the water level of the inner pot part; and a conductivity detection device, which is connected with the control unit and is used to detect the conductivity value of the food materials during the cooking process. The embodiment of the present invention detects the water level of the inner pot part through the water level sensing device, thereby determining whether to add water or drain water according to the result of the water level detection, thereby achieving the effect of automatically adding water or draining water, and can also control the contact time between the food materials and the water, thereby solving the problem of needing to manually control the amount of water. In addition, the embodiment of the present invention also detects the conductivity value of the food during the cooking process through a conductivity detection device, so that the cooking state of the food can be identified according to the conductivity value, the specific progress of the cooking process can be determined, and then the overall cooking process can be regulated to ensure that the cooking taste and other effects of the food meet the requirements, thereby improving the cooking effect of the rice cooker. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0028] Figure 1 A schematic structural diagram of an electric rice cooker provided by an embodiment of the present invention;

[0029] Figure 2 A cross-sectional schematic diagram of an electric rice cooker provided by an embodiment of the present invention;

[0030] Figure 3 An exploded schematic diagram of an electric rice cooker provided by an embodiment of the present invention;

[0031] Figure 4 A schematic flow chart of a rice cooker control method provided by an embodiment of the present invention;

[0032] Figure 5 A schematic diagram of a sub-process of a rice cooker control method provided by an embodiment of the present invention;

[0033] Figure 6 An exemplary schematic diagram of a rice cooker control method provided by an embodiment of the present invention;

[0034] Figure 7 Another exemplary schematic diagram of an electric rice cooker control method provided by an embodiment of the present invention.

[0035] Markings in the figure:

[0036] 1. pot body; 11. heating chamber; 12. inner pot part; 121. heating part; 13. filter pot part; 131. filter hole; 14. water tank chamber;

[0037] 2. Pot cover;

[0038] 3. Water tank; 31. Water inlet tank; 32. Water outlet tank;

[0039] 4. First water inlet and outlet component; 41. First water inlet; 42. First water outlet;

[0040] 5. Second water inlet and outlet components; 51. Second water inlet; 52. Second water outlet. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0043] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0044] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0045] See below Figure 1-Figure 3 The embodiment of the present invention provides an electric rice cooker for cooking food, the electric rice cooker comprises a pot body 1 and a pot cover 2, the pot body 1 is provided with a control unit, the pot body 1 is provided with a heating chamber 11, and the electric rice cooker further comprises:

[0046] An inner pot part 12 is arranged above the heating chamber 11 and is used to place the food;

[0047] a water tank 3, which is in communication with the inner pot part 12 and is used to supply water to the inner pot part 12 or receive water discharged from the inner pot part 12;

[0048] A water level sensing device, connected to the control unit, for detecting the water level of the inner pot part 12;

[0049] The conductivity detection device is connected to the control unit and is used to detect the conductivity value of the food during the cooking process.

[0050] In this embodiment, the electric rice cooker includes not only conventional pot body 1 and pot cover 2 structures and control unit components, but also an inner pot part 12 arranged in the pot body 1 and a water tank 3 connected to the inner pot part 12, and also includes a water level sensing device and a conductivity detection device respectively connected to the control unit. During operation, the position of the food on the inner pot part 12 can be detected by the water level sensing device, and according to the detection result, the water tank 3 is controlled to supply water to the inner pot part 12 until the set water level is reached. Then, the steaming operation is started. During the steaming process, the conductivity value in the inner pot part 12 can be detected by the conductivity detection device, and the state of the food can be identified according to the conductivity value, so as to control the overall steaming process.

[0051] This embodiment detects the water level of the inner pot part 12 through a water level sensing device, so as to determine whether to add water or drain water according to the result of the water level detection, so as to achieve the effect of automatic water addition or drainage, and can also control the contact time between the food and water, solving the problem of needing to manually control the amount of water. In addition, this embodiment also detects the conductivity value of the food in the cooking process through a conductivity detection device, so that the cooking state of the food can be identified according to the conductivity value, and the specific progress of the cooking process can be determined, and then the overall cooking process can be regulated to ensure that the cooking taste and other effects of the food meet the requirements, thereby improving the cooking effect of the rice cooker.

[0052] In practical applications, the food material described in this embodiment can be rice, that is, rice or porridge can be cooked by an electric rice cooker, or other food materials, such as any food material rich in starch with starch gelatinization as the cooking process. Taking rice cooking as an example, the principle of rice cooking is mainly that when the rice grains are heated with water, the amylase in the rice endosperm will undergo gelatinization. The process can be specifically divided into a water absorption stage, a temperature rise gelatinization stage, a boiling stage, and a heat preservation and stewing rice stage. In this process, the rice grains absorb water and swell, and the soluble long-chain starch migrates out and dissolves in the water after gelatinization. The higher the concentration of electrolytes dissolved in the gelatinized rice soup, the looser the outer layer structure of the rice grains after cooking will be, and the rice will not stick to the teeth. It should be noted that the conductivity is significantly negatively correlated with the resilience, cohesion, chewiness, etc. of the rice. Therefore, no matter what kind of rice, if the rice starch is not fully gelatinized, the rice with a good taste cannot be obtained, and the different cooking processes such as the amount of water added, the soaking time, and the heating time will play an important role in the taste of the rice. Therefore, this embodiment monitors the conductivity affected by the starch substances precipitated in the rice soup and controls the contact time between the rice grains and water to control the quality of the cooked rice, which can better adapt to different types of rice and users' needs for taste.

[0053] In some optional embodiments, the user's cooking needs can also be determined based on the user's operation of the control unit, so as to control the running time of modes such as steaming rice or cooking porridge according to the user's cooking needs, so as to ensure that the final steaming structure can meet the user's cooking needs, thereby solving the problem that the electric rice cooker in the prior art cannot adjust the soft and hard taste of rice after steaming and the soft and mushy state of rice grains when cooking porridge according to user needs and preferences.

[0054] In one embodiment, the electric rice cooker further comprises a filter pot component 13 disposed above the inner pot component 12 , and a plurality of filter holes 131 are formed at the bottom and sides of the filter pot component 13 .

[0055] In this embodiment, the filter pot part 13 is arranged above the inner pot part 12, so that the two cooperate to achieve the cooking operation. When the inner pot part 12 needs to discharge the water inside to the water tank 3, the filter holes 131 on the filter pot part 13 can ensure that the rice-like substances will not be discharged at the same time as the water is drained, thereby ensuring the reliability of the cooking effect. Of course, it can be understood that in order to achieve water drainage without discharging food, the filter holes 131 on the filter pot part 13 are large enough to drain water without causing the rice-like substances to leak out from the filter holes 131.

[0056] Furthermore, the conductivity detection device is arranged between the inner pot component 12 and the filter pot component 13 .

[0057] When the water is drained through the filter pot part 13, the rice soup after the rice is gelatinized may be discharged together with it, so there may be no rice soup above the filter pot part 13 after the water is drained. In order to ensure that the conductivity detection device can detect the conductivity value therein and has a high detection accuracy, the conductivity detection device is set between the inner pot part 12 and the filter pot part 13. Of course, in order to further improve the detection accuracy of the conductivity value, more conductivity detection devices can be set, and multiple conductivity detection devices can be distributed at different positions. In this way, during the detection, the conductivity values ​​detected by multiple conductivity detection devices can be summarized, and the average value of these conductivity values ​​can be calculated or the most reliable conductivity value can be selected from them. In addition, the conductivity detection device described in this embodiment can specifically be any one of a conductivity meter, a conductivity detector or a conductivity detector.

[0058] In one embodiment, a plurality of water level sensing devices are provided, and the plurality of water level sensing devices are respectively provided on the pot cover 2 and the inner pot component 12 .

[0059] By arranging a water level sensing device on the pot cover 2, the volume of rice or other substances on the inner pot part 12 can be detected and identified. By arranging a water level sensing device on the inner pot part 12, the water level in the inner pot part 12 can be detected and identified, so as to judge whether water needs to be added or drained according to the detection and identification results, so as to achieve the effect of automatically controlling the water volume. Specifically, the water level sensing device can be a water level detection sensor, or an electronic sensing water level controller or other devices.

[0060] In addition, a heating component 121 is provided on the outer side of the inner pot component 12 for providing heat to the inner pot component 12 .

[0061] The inner pot part 12 is heated by the heating part 121, thereby achieving the purpose of heating the food in the inner pot part 12. In practical applications, the heating part 121 is connected to a control unit, and the control unit determines parameters such as the heating time and heating degree of the heating part 121. Specifically, the heating part 121 can be a heating device such as an electric heating wire or an electric heating rod.

[0062] Combination Figure 3 In one embodiment, a water tank cavity 14 is provided inside the pot body 1 , and the water tank cavity 14 is located on the side of the heating cavity 11 , and the water tank 3 is installed in the water tank cavity 14 .

[0063] In this embodiment, the inner pot component 12 and other structures are placed in the heating cavity 11, and the water tank 3 is placed in the water tank cavity 14.

[0064] Furthermore, one side of the water tank 3 is connected to the inner pot part 12 through the first water inlet and outlet component 4 , and the other side of the water tank 3 is connected to the outside through the second water inlet and outlet component 5 .

[0065] In this embodiment, the water tank 3 is connected to the inner pot part 12 through the first water inlet and outlet component 4 to supply water to the inner pot part 12 or receive water discharged from the inner pot part 12 to the water tank 3. At the same time, the water tank 3 is also connected to the outside world through the second water inlet and outlet component 5, so that the outside world can supply water to the water tank 3 or receive water discharged from the water tank 3 to the outside world.

[0066] Specifically, the water tank 3 includes a water inlet tank 31 and a water outlet tank 32 located below the water inlet tank 31;

[0067] The first water inlet and outlet component 4 includes a first water inlet portion 41 and a first water outlet portion 42, wherein the first water inlet portion 41 is disposed between the water inlet box 31 and the inner pot component 12, and the first water outlet portion 42 is disposed between the water outlet box 32 and the inner pot component 12;

[0068] The second water inlet and outlet component 5 includes a second water inlet portion 51 and a second water outlet portion 52 . The second water inlet portion 51 is disposed between the water inlet box 31 and the outside, and the second water outlet portion 52 is disposed between the water outlet box 32 and the outside.

[0069] By dividing the water tank 3 into the water inlet box 31 and the water outlet box 32, the water inlet and the water outlet are isolated, so that the water discharged from the inner pot part 12 can be prevented from flowing back into the inner pot part 12. Accordingly, when the water inlet box 31 and the water outlet box 32 are divided, the water inlet box 31 and the water outlet box 32 are respectively connected with the inner pot part 12 and the outside world, that is, the water inlet box 31 is connected with the inner pot part 12 through the first water inlet part 41 and is connected with the outside world through the second water inlet part 51, and the water outlet box 32 is connected with the inner pot part 12 through the first water outlet part 42 and is connected with the outside world through the second water outlet part 52. It can be understood that when the water tank 3 is placed in the water tank cavity 14, in order to realize the communication between the water tank 3 and the inner pot part 12 and the outside world, the water tank cavity 14 will also be correspondingly provided with through holes, and the first water inlet and outlet part 4 and the second water inlet and outlet part 5 can be arranged in the through holes.

[0070] In practical applications, the first water inlet and outlet component 4 can adopt a solenoid valve, a ball valve or a water valve combined with flow monitoring and other devices, and connect it to the control unit, so as to control the first water inlet and outlet component 4 through the control unit to achieve the effect of automatic water supply or drainage.

[0071] like Figure 4 As shown, an embodiment of the present invention further provides a rice cooker control method, which is applied to the rice cooker as described above. The method specifically includes: steps S101 to S103.

[0072] Step S101, when cooking food, the water level sensing device detects the position of food on the inner pot part 12, and controls the water tank 3 to supply water to the inner pot part 12 to a set position according to the detection result;

[0073] Step S102, starting a preset steaming process, and detecting the conductivity value in the inner pot part 12 by the conductivity detection device;

[0074] Step S103: controlling the cooking process according to the conductivity value.

[0075] In this embodiment, when the electric rice cooker is working, the position of the food on the inner pot part 12 can be detected by the water level sensing device, and according to the detection result, the water tank 3 is controlled to supply water to the inner pot part 12 until the set water level is reached. Then, the cooking operation is started. During the cooking process, the conductivity value in the inner pot part 12 can be detected by the conductivity detection device, and the state of the food can be identified according to the conductivity value, so as to control the overall cooking process.

[0076] This embodiment detects the water level of the inner pot part 12 through a water level sensing device, so as to determine whether to add water or drain water according to the result of the water level detection, so as to achieve the effect of automatic water addition or drainage, and can also control the contact time between the food and water, solving the problem of needing to manually control the amount of water. In addition, this embodiment also detects the conductivity value of the food in the cooking process through a conductivity detection device, so that the cooking state of the food can be identified according to the conductivity value, and the specific progress of the cooking process can be determined, and then the overall cooking process can be regulated to ensure that the cooking taste and other effects of the food meet the requirements, thereby improving the cooking effect of the rice cooker.

[0077] In practical applications, the food material described in this embodiment can be rice, that is, rice or porridge can be cooked by an electric rice cooker, or other food materials, such as any food material rich in starch with starch gelatinization as the cooking process. Taking rice cooking as an example, the principle of rice cooking is mainly that when the rice grains are heated with water, the amylase in the rice endosperm will undergo gelatinization. The process can be specifically divided into a water absorption stage, a temperature rise gelatinization stage, a boiling stage, and a heat preservation and stewing rice stage. In this process, the rice grains absorb water and swell, and the soluble long-chain starch migrates out and dissolves in the water after gelatinization. The higher the concentration of electrolytes dissolved in the gelatinized rice soup, the looser the outer layer structure of the rice grains after cooking will be, and the rice will not stick to the teeth. It should be noted that the conductivity is significantly negatively correlated with the resilience, cohesion, chewiness, etc. of the rice. Therefore, no matter what kind of rice, if the rice starch is not fully gelatinized, the rice with a good taste cannot be obtained, and the different cooking processes such as the amount of water added, the soaking time, and the heating time will play an important role in the taste of the rice. Therefore, this embodiment monitors the conductivity affected by the starch substances precipitated in the rice soup and controls the contact time between the rice grains and water to control the quality of the cooked rice, which can better adapt to different types of rice and users' needs for taste.

[0078] It should also be noted that the implementation subject of the rice cooker control method provided in this embodiment can be the control unit in the rice cooker, or it can be other control modules independent of the control unit, such as a service terminal or a communication terminal, etc.

[0079] In one embodiment, if Figure 5 As shown, the step S103 includes: steps S201 to S202.

[0080] Step S201, in response to a first steaming instruction of a user, presetting a conductivity ratio according to the first steaming instruction; or in response to an automatically generated second steaming instruction, presetting a conductivity threshold according to the second steaming instruction;

[0081] Step S202: Control the cooking process by combining the conductivity value with the conductivity ratio or combining the conductivity value with the conductivity threshold.

[0082] This embodiment can also determine the user's cooking needs based on the cooking instructions issued by the user, so as to set the corresponding conductivity ratio according to the user's cooking needs, and control the running time of the modes such as steaming rice or cooking porridge in combination with the detected conductivity value, so as to ensure that the final cooking structure can meet the user's cooking needs, thereby solving the problem that the rice cooker in the prior art cannot adjust the hard and soft taste of rice after steaming and the soft and rotten state of rice grains when cooking porridge according to the user's needs and preferences. Of course, in addition to performing the cooking operation according to the user's cooking instructions, the rice cooker can also automatically generate a cooking instruction according to the ingredients put in by the user, and use this to set the corresponding conductivity threshold, and then combine the conductivity value and the conductivity threshold to control the running time of the modes such as steaming rice or cooking porridge.

[0083] In a practical application scenario, combined with Figure 6 When the electric rice cooker control method provided by this embodiment is used to cook rice, the user first puts rice into the filter pot part 13, and then the water level application device detects the amount of rice put in to determine the amount of water supply, and then the water inlet tank 31 in the water tank 3 supplies water to the filter pot part 13 through the first water inlet part 41 until the water level is 1 cm above the rice. Then it is determined whether the user has customized the hardness of the rice.

[0084] If the user does not customize the hardness of the rice, the corresponding rice cooking process will be executed, that is, the soaking stage will be run first, and the conductivity value will be detected during the operation, and the conductivity value will be used to determine whether to end the soaking stage and enter the next stage, that is, when the conductivity value is detected to be rising, the next stage, that is, the heating stage, can be entered. In the heating stage, it is necessary to determine whether to end the heating stage based on the increase rate of the conductivity value, that is, when the increase rate of the conductivity value is detected to be decreasing, the next stage, that is, the boiling stage, can be entered. In the boiling stage, it is necessary to detect whether the conductivity value reaches the set conductivity threshold, for example, when the conductivity value reaches 0.6-1.0ms / cm, the boiling stage can be ended. At this time, the water level of the rice soup produced by the rice is discharged to below the filter pot component 13, and then the stewing stage is run, and after the stewing stage is over, the entire rice cooking operation is ended.

[0085] If the user customizes the hardness of the rice, the hardness is preset, and then the corresponding rice cooking process is started, that is, the soaking stage is first run, and the conductivity value is detected during the operation, and it is judged whether to end the soaking stage and enter the next stage according to the conductivity value, that is, when the conductivity value is detected to rise to the corresponding ratio (that is, the pre-set conductivity ratio), it can enter the next stage, that is, the heating stage. In the heating stage, it is necessary to judge whether to end the heating stage according to the increase in the conductivity value, that is, when the conductivity value is detected to rise to the corresponding ratio, it can enter the next stage, that is, the boiling stage. In the boiling stage, it is also judged whether the conductivity value is increased to the corresponding ratio, and the boiling stage is ended when it is determined that the conductivity value is increased to the corresponding ratio. At this time, the water level of the rice soup produced by the rice is discharged to below the filter pot component 13, and then the stewing stage is run, and after the stewing stage is over, the entire rice cooking operation is ended.

[0086] In another practical application scenario, combined with Figure 7 When cooking porridge by the rice cooker control method provided by the present embodiment, the user first puts rice into the filter pot part 13, and then detects the amount of rice put in by the water level sensing device, and determines whether the user has customized the hardness. If the user has not customized the hardness, clean water is directly input into the inner pot part 12 through the water inlet tank 31, and the porridge cooking mode is run. If the user has customized the hardness, the hardness of the porridge is preset, and then clean water is transported into the inner pot part 12 through the water tank 3 until the water level is 1 cm above the rice. Then the porridge cooking mode is run, and during the operation of the porridge cooking mode, the conductivity value in the inner pot part 12 is detected by the conductivity detection device, and then it is determined whether the conductivity value rises to the corresponding proportion. If it is determined that the conductivity value has not risen to the corresponding proportion, the porridge cooking mode continues to run; if it is determined that the conductivity value rises to the corresponding proportion, the porridge cooking mode is stopped, and the entire porridge cooking operation is completed.

[0087] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other. For the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of this application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of this application.

[0088] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

Claims

1. An electric rice cooker for cooking food, the electric rice cooker comprising a pot body and a pot cover, the pot body is provided with a control unit, and the pot body is provided with a heating chamber, characterized in that: The electric rice cooker also includes: An inner pot component is arranged above the heating cavity and is used to place the food; a water tank, connected to the inner pot part, for supplying water to the inner pot part or receiving water discharged from the inner pot part; A water level sensing device, connected to the control unit, for detecting the water level of the inner pot component; The conductivity detection device is connected to the control unit and is used to detect the conductivity value of the food during the cooking process.

2. The electric rice cooker according to claim 1, characterized in that: It also includes a filter pot component arranged above the inner pot component, and a plurality of filter holes are provided on the bottom and side of the filter pot component.

3. The electric rice cooker according to claim 2, characterized in that: The conductivity detection device is arranged between the inner pot component and the filter pot component.

4. The electric rice cooker according to claim 1, characterized in that: There are multiple water level sensing devices, and the multiple water level sensing devices are respectively arranged on the pot cover and the inner pot component.

5. The electric rice cooker according to claim 1, characterized in that: A water tank cavity is arranged inside the pot body, the water tank cavity is located at the side of the heating cavity, and the water tank is installed in the water tank cavity.

6. The electric rice cooker according to claim 5, characterized in that: One side of the water tank is connected to the inner pot part through a first water inlet and outlet part, and the other side of the water tank is connected to the outside through a second water inlet and outlet part.

7. The electric rice cooker according to claim 6, characterized in that: The water tank comprises a water inlet tank and a water outlet tank located below the water inlet tank; The first water inlet and outlet component includes a first water inlet portion and a first water outlet portion, the first water inlet portion is arranged between the water inlet box and the inner pot component, and the first water outlet portion is arranged between the water outlet box and the inner pot component; The second water inlet and outlet component includes a second water inlet portion and a second water outlet portion, the second water inlet portion is arranged between the water inlet box and the outside, and the second water outlet portion is arranged between the water outlet box and the outside.

8. The electric rice cooker according to claim 1, characterized in that: A heating component is arranged on the outer side of the inner pot component for providing heat to the inner pot component.

9. A rice cooker control method, applied to the rice cooker according to any one of claims 1 to 8, characterized in that: The method comprises: When cooking food, the water level sensing device detects the position of food on the inner pot part, and controls the water tank to supply water to the inner pot part to a set position according to the detection result; Starting a preset steaming process and detecting the conductivity value in the inner pot component by the conductivity detection device; The cooking process is controlled according to the conductivity value.

10. The rice cooker control method according to claim 9, characterized in that: The controlling the cooking process according to the conductivity value comprises: In response to a first steaming instruction from a user, presetting a conductivity ratio according to the first steaming instruction; or, in response to an automatically generated second steaming instruction, presetting a conductivity threshold according to the second steaming instruction; The cooking process is controlled by combining the conductivity value with the conductivity ratio or combining the conductivity value with the conductivity threshold.

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