Control method and control device for cooking appliance, and cooking appliance

Abstract

The present application discloses a control method and control device for a cooking appliance, and a cooking appliance. The control method for a cooking appliance comprises: when a pot is placed in a heating zone and a cooking instruction is received, acquiring cooking parameters in the cooking instruction, the cooking parameters comprising the type of the pot and / or the heating range of the pot in a height direction; and on the basis of the cooking parameters, controlling one of a first electromagnetic heating assembly and a second electromagnetic heating assembly to start working.

Description

Control method, control device and cooking appliance of a cooking appliance

[0001] Related applications

[0002] This application claims priority to Chinese Patent Application No. 202421388777.5, filed on June 17, 2024, and Chinese Patent Application No. 202410784436.8, filed on June 17, 2024, the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of electromagnetic heating, in particular to a control method, a control device and a cooking appliance of a cooking appliance. BACKGROUND

[0004] The electromagnetic oven generally adopts a conventional coil with conventional spiral winding, and the conventional coil can only heat the bottom of the frying pan when heating the pan, especially the frying pan, and cannot effectively heat the wall of the frying pan, which leads to uneven heating of the food, burnt bottom, no pot gas and other phenomena. SUMMARY

[0005] The present application aims to solve the above technical problems, and the present application considers using a double-sided winding coil with a three-dimensional heating effect to heat the wall of the pot. For cooking experience, it has a good improvement effect, but in the soup cooking scene where three-dimensional heating is not needed, if the double-sided winding coil is still used for heating, the wall of the pot will be heated, and if the water level is lower than a certain wall height, the wall will be dry. Burn phenomenon, in addition, the handle of the soup pot may also be heated to cause burns, which has certain safety hazards. How to provide a cooking appliance control method and cooking appliance that can simultaneously heat the bottom and wall of the pot and meet the cooking needs of both cooking and soup is a further problem faced by the present design.

[0006] To achieve the above-mentioned purpose, the present application provides a control method of a cooking appliance, wherein the control method of the cooking appliance comprises:

[0007] The cooking appliance comprises a main body, a heating area for installing a pot is arranged on the main body, a first electromagnetic heating assembly and a second electromagnetic heating assembly are arranged in the main body, the first electromagnetic heating assembly and the second electromagnetic heating assembly can both perform electromagnetic heating on the pot placed in the heating area, compared with the first electromagnetic heating assembly, the second electromagnetic heating assembly is arranged to generate a higher magnetic field in the direction of the heating area when powered on, so that the second electromagnetic heating assembly can perform electromagnetic heating on the higher part of the side wall of the pot, and the control method of the cooking appliance comprises:

[0008] acquiring a cooking parameter in the cooking instruction, the cooking parameter comprising a type of the pot and / or a heating range of the pot in a height direction when the pot is placed in the heating area and the cooking instruction is received;

[0009] controlling one of the first electromagnetic heating assembly and the second electromagnetic heating assembly to work according to the cooking parameter.

[0010] In an embodiment, the main body is provided with a pot detection part, which is used to generate a detection parameter when the energized electromagnetic heating assembly and the pot placed in the heating area act on each other.

[0011] The step of controlling one of the electromagnetic heating assemblies to work according to the cooking parameter comprises:

[0012] acquiring the detection parameter;

[0013] determining whether there is a pot currently according to the detection parameter, and if yes, controlling one of the first electromagnetic heating assembly and the second electromagnetic heating assembly to heat the pot.

[0014] In an embodiment, the step of acquiring the detection parameter comprises:

[0015] controlling the second electromagnetic heating assembly to act on the pot to generate the detection parameter when the automatic cooking instruction is received.

[0016] In an embodiment, the step of determining whether there is a pot currently according to the detection parameter, and if yes, controlling one of the first electromagnetic heating assembly and the second electromagnetic heating assembly to heat the pot comprises:

[0017] determining that there is a pot currently according to the detection parameter, and determining a type of the pot;

[0018] controlling one of the first electromagnetic heating assembly and the second electromagnetic heating assembly to heat the pot according to the type of the pot.

[0019] In an embodiment, the detection parameter comprises a pulse resonance frequency.

[0020] The step of determining that there is a pot currently according to the detection parameter, and determining a type of the pot comprises:

[0021] if the pulse resonance frequency is less than a first preset pulse resonance frequency, determining that the pot currently is a wok or a large-bottom soup pot;

[0022] if the pulse resonance frequency is greater than or equal to the first preset pulse resonance frequency and less than or equal to a second preset pulse resonance frequency, determining that the pot currently is a small-bottom soup pot or a multi-bottom pot.

[0023] If the pulse resonance frequency is greater than a second preset pulse resonance frequency, it is determined that the current pot is a bad pot.

[0024] In an embodiment, the step of controlling one of the first electromagnetic heating assembly and the second electromagnetic heating assembly to heat the pot according to the type of the pot comprises:

[0025] If the current pot is a frying pan or a large-bottom soup pot, the second electromagnetic heating assembly is controlled to work.

[0026] If the current pot is a small-bottom soup pot or a multi-bottom pot, the first electromagnetic heating assembly is controlled to work.

[0027] If the current pot is a bad pot, the first electromagnetic heating assembly is controlled to work at a reduced power.

[0028] In an embodiment, the step of controlling one of the first electromagnetic heating assembly and the second electromagnetic heating assembly to work according to the cooking parameter comprises:

[0029] When the pot is a first type of pot, the second electromagnetic heating assembly is controlled to work; or,

[0030] When the pot is a second type of pot, the first electromagnetic heating assembly is controlled to work,

[0031] The first type of pot is a pot whose bottom and side need to be heated, and the second type of pot is a pot whose bottom needs to be heated.

[0032] In an embodiment, the first type of pot comprises a frying pan or a large-bottom soup pot, and the second type of pot comprises a small-bottom soup pot, a multi-bottom pot or a bad pot.

[0033] The application also provides a control device, which comprises a memory, a processor and a cooking appliance control program stored in the memory and executable on the processor, and the cooking appliance control program is configured to implement the steps of the cooking appliance control method as described above.

[0034] The application also provides a cooking appliance, which comprises:

[0035] A main body, which is provided with a heating area;

[0036] The first electromagnetic heating assembly and the second electromagnetic heating assembly are arranged in the main body and are stacked in a first direction, and each of the first electromagnetic heating assembly and the second electromagnetic heating assembly is capable of performing electromagnetic heating on a pot placed in the heating area. Compared with the first electromagnetic heating assembly, the second electromagnetic heating assembly is arranged to generate a higher magnetic field in the direction of the heating area when energized, so that the second electromagnetic heating assembly can perform electromagnetic heating on a higher part of the sidewall of the pot.

[0037] The control device is electrically connected with the first electromagnetic heating assembly and the second electromagnetic heating assembly.

[0038] In an embodiment, the cooking utensil further comprises a pot detection unit configured to generate a detection parameter when the energized electromagnetic heating assembly and the pot placed in the heating area interact.

[0039] The control device is electrically connected with the pot detection unit and configured to control the first electromagnetic heating assembly and the second electromagnetic heating assembly to work according to the pot detection unit.

[0040] In an embodiment, the second electromagnetic heating assembly comprises:

[0041] The support has a first side and a second side arranged oppositely in the first direction.

[0042] The winding unit comprises a plurality of turns of coils, each turn of the coil comprises a first wire segment and a second wire segment connected to each other and having opposite currents, each turn of the coil is arranged around the first side and the second side of the support, so that the first side of the support has a plurality of the first wire segments and the second side of the support has a plurality of the second wire segments.

[0043] In an embodiment, the second electromagnetic heating assembly comprises:

[0044] The support; and

[0045] At least one pair of winding units, each pair of the winding units comprises two winding units arranged on the support and distributed along the circumference of the support, each of the winding units is arranged in a ring shape and has a first winding ring segment close to the center of the support and a second winding ring segment close to the edge of the support.

[0046] In the pair of winding units, the directions of the currents of the two winding units are arranged to be opposite, so that the middle parts of the two winding units form opposite magnetic poles, and in at least one of the winding units, the width of at least a part of the first winding ring segment is d1, the width of at least a part of the second winding ring segment is d2, and d1 is greater than d2.

[0047] In an embodiment, the second electromagnetic heating assembly comprises:

[0048] a support; and

[0049] at least one pair of winding units, each pair of winding units comprising two winding units arranged on the support and distributed along the circumference of the support, each winding unit being arranged in a ring shape having a first winding ring segment close to the center of the support and a second winding ring segment close to the edge of the support;

[0050] in the pair of winding units, the directions of the currents of the two winding units are arranged to be opposite, so that the middle parts of the two winding units form opposite magnetic poles, and in at least one winding unit, the winding center of the winding unit is located on the side close to the second winding ring segment.

[0051] In an embodiment, the main body is further provided with a control device, the control device comprising an operation key and / or a display control area arranged on the surface of the main body, and the control device is electrically connected with the control device for working according to the control device.

[0052] In the technical scheme provided in the present application, the cooking appliance comprises a main body, the main body is provided with a heating area for mounting a pot, the main body is provided with a first electromagnetic heating assembly and a second electromagnetic heating assembly, the first electromagnetic heating assembly and the second electromagnetic heating assembly can both perform electromagnetic heating on the pot placed in the heating area, compared with the first electromagnetic heating assembly, the second electromagnetic heating assembly is arranged to generate a higher magnetic field in the direction of the heating area when powered on, so that the second electromagnetic heating assembly can perform electromagnetic heating on a higher part of the sidewall of the pot, the second electromagnetic heating assembly can have a larger heating range, and the heating effect of the pot wall is better, and the control method of the cooking appliance comprises: when the pot is placed in the heating area and a cooking instruction is received, obtaining a cooking parameter in the cooking instruction, the cooking parameter comprises a pot type and / or a heating range of the pot in the height direction; and according to the cooking parameter, controlling one of the first electromagnetic heating assembly and the second electromagnetic heating assembly to work. According to the pot type or the requirement of the heating range of the pot in the height direction, the first electromagnetic heating assembly can be controlled to heat, and according to the pot type or the requirement of the heating range of the pot in the height direction, the second electromagnetic heating assembly can be controlled to heat, and according to the pot type and the requirement of the size of the heating range, one of the first electromagnetic heating assembly and the second electromagnetic heating assembly is controlled to work, so as to provide a control method of a cooking appliance which can have the functions of pot bottom heating and pot wall heating and can meet the cooking requirements of stir-frying and soup. BRIEF DESCRIPTION OF DRAWINGS

[0053] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the accompanying drawings in the following description only only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from the structures shown in the drawings without creative labor.

[0054] Fig. 1 is a schematic structural diagram of a control device of a cooking appliance in a hardware operating environment related to the embodiments of the present application;

[0055] Fig. 2 is a schematic structural diagram of an embodiment of a cooking appliance provided by the present application;

[0056] Fig. 3 is an exploded schematic diagram of the cooking appliance in Fig. 1;

[0057] Fig. 4 is a sectional schematic diagram of the first electromagnetic heating assembly and the second electromagnetic heating assembly in Fig. 3;

[0058] Fig. 5 is a schematic diagram of another embodiment of the second electromagnetic heating assembly in Fig. 1;

[0059] Fig. 6 is a schematic diagram of an embodiment of the winding unit in Fig. 4;

[0060] Fig. 7 is a flowchart of an embodiment of a control method of a cooking appliance provided by the present application;

[0061] Fig. 8 is a flowchart of another embodiment of a control method of a cooking appliance provided by the present application;

[0062] Fig. 9 is a schematic diagram of the second electromagnetic heating assembly and the pot in Fig. 2;

[0063] Fig. 10 is a schematic diagram of an embodiment of the second electromagnetic heating assembly in Fig. 9;

[0064] Fig. 11 is a schematic diagram of the current direction and the magnetic pole after the multiple first winding units in Fig. 10 are energized;

[0065] Fig. 12 is a schematic diagram of the structure of the multiple first winding units and the magnet in Fig. 10;

[0066] Fig. 13 is a schematic diagram of the magnetic field formed by each pair of winding units in Fig. 9;

[0067] Fig. 14 is an exploded schematic diagram of the cooking appliance in Fig. 2;

[0068] Fig. 15 is a sectional schematic diagram of the first electromagnetic heating assembly and the second electromagnetic heating assembly in Fig. 14;

[0069] Fig. 16 is a schematic diagram of another embodiment of the second electromagnetic heating assembly in Fig. 2;

[0070] Fig. 17 is a schematic view of the electromagnetic heating structure in Fig. 14.

[0071] BRIEF DESCRIPTION OF DRAWINGS

[0072] 100, cooking appliance; 10, main body; 1, first electromagnetic heating assembly; 2, second electromagnetic heating assembly; 21, support structure; 211, first support; 212, second support; 22, first wire winding unit; 221, first wire segment; 222, second wire segment; 23, third support; 24, second wire winding unit; 241, first wire winding loop segment; 242, second wire winding loop segment; 3, control device; 4, magnet structure; 41, first magnetic pole end; 42, first extension; 43, second magnetic pole end; 44, third magnetic pole end; 45, second extension; 5, magnetic shield; 200, pot.

[0073] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments in combination with the accompanying drawings. DETAILED DESCRIPTION

[0074] The technical solutions in the embodiments of the present application will be clearly and completely described in combination with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0075] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0076] In addition, if the embodiments of the present application involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes A solution, or B solution, or A and B solutions. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection claimed by the present application.

[0077] The electromagnetic oven generally adopts a conventional coil with conventional spiral winding. When the conventional coil heats the pot, especially the frying pan, only the bottom of the frying pan is heated, and the wall of the frying pan cannot be effectively heated, which leads to uneven heating of food, burnt bottom, no pot gas and other phenomena. The present application considers using a double-sided winding coil with three-dimensional heating effect to heat the wall of the pot. For cooking experience, it has a good improvement effect, but in the soup cooking scene where three-dimensional heating effect is not needed, if the double-sided winding coil is still used for heating, the wall of the soup pot will be heated, and if the water level is lower than a certain wall height, the wall will be dry. Burn phenomenon, in addition, the handle of the soup pot may also be heated to cause burns, which has certain safety hazards. How to provide a cooking utensil control method and cooking utensil that can have pot bottom heating and pot wall heating functions and compatible with cooking needs of frying and soup is a further problem faced by the design.

[0078] Please refer to FIGS. 2 to 4, the cooking utensil 100 provided by the present application comprises a main body 10, a first electromagnetic heating assembly 1 and a second electromagnetic heating assembly 2, the main body 10 is provided with a heating area; the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 are arranged on the main body 10, the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 are arranged in a first direction, the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 each have a first side and a second side in the first direction, the first side of the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 is used to correspond to the pot 200 to be heated, compared with the first electromagnetic heating assembly 1, the second electromagnetic heating assembly 2 is arranged to generate a higher magnetic field in the direction of the first side of the second electromagnetic heating assembly 2 when powered on, so that the second electromagnetic heating assembly 2 can perform electromagnetic heating on the higher part of the side wall of the pot 200.

[0079] It should be noted that, please refer to FIG. 3, the first electromagnetic heating assembly 1 can be arranged as the most common conventional coil with conventional spiral winding. Because the winding method of the coil winding of the first electromagnetic heating assembly 1 determines that the magnetic field height of the conventional coil is low, the magnetic field range that can act on the wall of the frying pan is also small, and the intensity is weak, so the heating effect on the wall is poor.

[0080] It is also to be noted that the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 are stacked in the first direction. When the first electromagnetic heating assembly 1 is a conventional linear spiral coil, the second electromagnetic heating assembly 2 can be a coil capable of generating a higher magnetic field in the first direction, and the size of the projection of the second electromagnetic heating assembly 2 in the first direction is equal to that of the first electromagnetic heating assembly 1. Of course, in order to correspond to larger pots 200, the second electromagnetic heating assembly 2 can be set to have a larger diameter than the first electromagnetic heating assembly 1.

[0081] In an embodiment, the second electromagnetic heating assembly 2 can be a double-sided winding disc as shown in FIGS. 3 and 4. Specifically, the second electromagnetic heating assembly 2 includes a support structure 21 and a first winding unit 22. The support structure 21 has a first side and a second side oppositely arranged in the first direction. The first winding unit 22 includes a plurality of turns of coils, each turn of the coil including a first wire segment 221 and a second wire segment 222 connected to each other and having opposite currents. Each turn of the coil is wound around the first side and the second side of the support structure 21, such that the first side of the support structure 21 has a plurality of the first wire segments 221, and the second side of the support structure 21 has a plurality of the second wire segments 222.

[0082] When the first wire segments 221 corresponding to the pot are energized in the coil winding of the double-sided winding disc, the first wire segments 221 generate a magnetic field that extends to the periphery of the outer end region of the first wire segments 221, thereby having a wider magnetic field region, and extends outwardly from the first wire segments 221, thereby having a higher magnetic field distribution region. As a result, the induction cooker not only can heat the bottom of the wok, but also can heat a wider area of the bottom of the wok and extend to the sidewall of the wok to heat the side of the wok, thereby achieving three-dimensional heating.

[0083] Further, referring to FIG. 4, in the present embodiment, the support structure 21 includes a first support 211 and a second support 212. The first support 211 and the second support 212 are arranged at intervals in the first direction. The first wire segments 221 are wound around one side of the first support 211 away from the second support 212, and the second wire segments 222 are wound around one side of the second support 212 away from the first support 211. The first electromagnetic heating assembly 1 is arranged at a position between the first support 211 and the second support 212.

[0084] It should be noted that there are certain requirements for the disc spacing during normal electromagnetic heating. The disc spacing generally refers to the distance between the electromagnetic coil winding and the bottom of the pot. In general, in order to ensure better heating effect and safety, the working distance between the coil winding of the electromagnetic oven and the bottom of the pot is generally controlled to be about 10 mm. The setting of this distance can ensure the efficiency of electromagnetic induction heating and reduce energy loss. Therefore, in order to ensure the electromagnetic induction heating efficiency of the first electromagnetic heating assembly 1, avoid the incompatibility of IGBT leading to the failure of the first electromagnetic heating assembly 1 to work normally or the performance degradation, the distance between the first electromagnetic heating assembly 1 and the bottom of the pot should be controlled within a preset range.

[0085] For the second electromagnetic heating assembly 2 with double-sided winding, in order to ensure the compatibility of its IGBT, the disc spacing of the second electromagnetic heating assembly 2 is controlled to be about 5-7 mm. In the present application, the magnetic field generated by the first wire segment 221 is used to heat the pot, so the first wire segment 221 is set to be closer to the pot, and the first electromagnetic heating assembly 1 is located below the first wire segment 221. Therefore, the first electromagnetic heating assembly 1 is arranged between the first support 211 and the second support 212, so that the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 can work at the best performance.

[0086] Of course, the second electromagnetic heating assembly 2 can also be provided in other forms of coil disc. In another embodiment, for example, the single-sided winding coil disc shown in FIG. 5 and FIG. 6, the second electromagnetic heating assembly 2 includes a third support 23 and at least one pair of second winding units 24. Each pair of second winding units 24 includes two second winding units 24 arranged on the third support 23 and distributed along the circumference of the third support 23. Each second winding unit 24 is arranged in a ring shape and has a first winding ring segment 241 close to the center of the third support 23 and a second winding ring segment 242 close to the edge of the third support 23. In the pair of second winding units 24, the directions of the currents of the two second winding units 24 are set to be opposite, so that the middle parts of the two second winding units 24 form opposite magnetic poles. In at least one second winding unit 24, the width of the first winding ring segment 241 is d1 and the width of the second winding ring segment 242 is d2, and d1 is greater than d2.

[0087] In yet another embodiment, the second electromagnetic heating assembly comprises a third support 23 and at least one pair of second winding units 24, each pair of second winding units 24 comprises two second winding units 24 arranged on the third support 23 and distributed along the circumference of the third support 23, each of the second winding units 24 is arranged in a ring shape, having a first winding ring segment 241 close to the center of the third support 23, and a second winding ring segment 242 close to the edge of the third support 23; in the pair of second winding units 24, the directions of the currents of the two second winding units 24 are arranged to be opposite, so that the middle parts of the two second winding units 24 form opposite magnetic poles, and in at least one of the second winding units 24, the winding center of the second winding unit 24 is located on the side close to the second winding ring segment 242 of the geometric center.

[0088] It should be noted that according to Ampere's rule: hold the current-carrying solenoid with the right hand, let the four fingers point to the direction of the current, then the thumb points to the N pole of the current-carrying solenoid, so please refer to FIG. 8, when the directions of the currents of the two second winding units 24 are arranged to be opposite, a closed magnetic field is formed between the two second winding units 24, for example, one of the two second winding units 24 is arranged as a first second winding unit 24, and the other is arranged as a second winding unit 24, when the first second winding unit 24 and the second winding unit 24 are arranged horizontally, i.e., when the first second winding unit 24 is arranged horizontally, the upper side of the first second winding unit 24 forms a magnetic pole N, and the lower side forms a magnetic pole S, at the same time, the upper side of the second winding unit 24 forms a magnetic pole S, and the lower side forms a magnetic pole N; in this way, the magnetic field lines go from the N pole of the first second winding unit 24 to the S pole of the second winding unit 24, then from the S pole of the second winding unit 24 to the N pole, then from the N pole of the second winding unit 24 to the S pole of the first second winding unit 24, and finally from the S pole of the first second winding unit 24 back to the N pole of the first second winding unit 24, thereby forming a closed magnetic field.

[0089] Then, when the pair of second winding units 24 is energized, the closed magnetic field formed between the two special-shaped magnetic poles formed by the two second winding units 24 can interact with the pot wall far away from the second winding units 24, thereby achieving heating of the pot wall.

[0090] By arranging the magnetic pole formed in the middle part of the second winding unit 24 close to the side of the corresponding second winding ring segment 242, the magnetic pole formed in the middle part of the second winding unit 24 can be closer to the edge side of the third support 23, generating a higher magnetic field in the direction of the heating area, which can interact with the position of the corresponding pot wall, thereby increasing the heating range of the pot wall.

[0091] Of course, the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 are not limited to the above examples, and other changes can be made by those skilled in the art under the inspiration of the technical essence of the embodiments of the present application, as long as the functions and effects achieved are the same or similar to those of the embodiments of the present application, which should be covered by the protection scope of the embodiments of the present application.

[0092] It should be further noted that when the second electromagnetic heating assembly 2 is provided as the single-sided winding on the third support 23, in order to enable the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 to work at optimal performance, the first electromagnetic heating assembly 1 can be arranged below the second electromagnetic heating assembly 2 on the side away from the pot, so that the disc spacing of the two electromagnetic heating assemblies meets the working requirements, to ensure the compatibility of the IGBTs of the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2.

[0093] It can be understood that the second electromagnetic heating assembly 2 can generate a higher magnetic field in the direction of the heating area, so that when a pot with a large heating area, such as a large soup pot or a frying pan, is needed, the second electromagnetic heating assembly 2 can be fully coupled with this type of pot for heating; when a pot with a small heating area, such as a small soup pot or a multi-bottom pot, is needed, in order to avoid the pot wall from being heated and dried when the water level in the small soup pot is low, a higher magnetic field in the direction of the heating area is not needed, and at this time the second electromagnetic heating assembly 2 does not need to work, and only the first electromagnetic heating assembly 1 is needed to heat the bottom of this type of pot. It should be noted that the multi-bottom pot generally refers to a pot with a multi-layer bottom structure, such as a honeycomb bottom aluminum pot, etc.

[0094] In the technical scheme provided in the present application, when the type of pot or the heating range of the pot in the height direction is small, the first electromagnetic heating assembly 1 can be used for heating, and when the type of pot or the heating range of the pot in the height direction is large, the second electromagnetic heating assembly 2 can be used for heating. According to the size requirements of the type of pot and the heating range, the electromagnetic heating assemblies with two heating ranges are set to work, so as to provide a cooking appliance 100 which can have both pot bottom heating and pot wall heating functions and can meet the cooking requirements of both stir-frying and soup cooking.

[0095] In the present embodiment, the control device 3 is electrically connected with the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2. The control device 3 includes a memory, a processor, and a heating device control program stored on the memory and executable on the processor, and the heating device control program is configured to implement the steps of the control method of the cooking appliance 100.

[0096] Further, in order to make the magnetic field generated by the first winding ring segment 241 and the second winding ring segment 242 uniform, so that the pot 200 is heated uniformly, in an embodiment, the winding gap of at least part of the first winding ring segment 241 is greater than the winding gap of the second winding ring segment 242. By setting in this way, only the winding gap of the second winding ring segment 242 needs to be adjusted and set to be denser, so that the magnetic field corresponding to the second winding ring segment 242 is generated at a time greater than the magnetic field corresponding to the first winding ring segment 241, but the magnetic field generated by the second winding ring segment 242 can be distributed more uniformly, so that the area acting on the pot wall is heated uniformly.

[0097] In another embodiment, the number of layers of the first winding unit 22 at the first winding ring segment 241 is N1, and the number of layers of the first winding unit 22 at the second winding ring segment 242 is N2, wherein N2 is greater than N1.

[0098] Since the first winding unit 22 is arranged in a ring shape, the number of coils of the first winding ring segment 241 and the second winding ring segment 242 is the same, when N2 is greater than N1, it can be understood that the second winding ring segment 242 is higher in height than the first winding ring segment 241, then the second winding ring segment 242 can also be realized to be smaller in width than the first winding ring segment 241, so that the magnetic pole formed in the middle of the first winding unit 22 is close to one side of the corresponding second winding ring segment 242.

[0099] In the present embodiment, the first electromagnetic heating assembly 1 is arranged on the second side of the second electromagnetic heating assembly 2.

[0100] It should be noted that since electromagnetic normal heating has certain requirements for the disc spacing, the "disc spacing" generally refers to the distance between the electromagnetic coil winding and the pot bottom. Generally speaking, in order to ensure better heating effect and safety, avoid IGBT incompatibility causing electromagnetic heating assembly to work abnormally or performance degradation, the corresponding working distance needs to be set according to the performance and working parameters of each electromagnetic heating assembly, so that the disc spacing is within the appropriate preset range value, which can be coupled with the pot 200 with high efficiency.

[0101] Since in the present application, the disc spacing of the first electromagnetic heating assembly 1 needs to be set to be greater than the disc spacing of the second electromagnetic heating assembly 2, so that the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 can both achieve the best working performance, therefore the first electromagnetic heating assembly 1 is arranged on the second side of the second electromagnetic heating assembly 2, to ensure to improve the efficiency of electromagnetic induction heating of the two electromagnetic heating assemblies and reduce energy loss.

[0102] Further, referring to FIG. 14, in the present embodiment, the cooking utensil 100 further comprises a magnet structure 4 disposed at the second side of the second electromagnetic heating assembly 2; the first electromagnetic heating assembly 1 is disposed at the side of the magnet structure 4 facing the second electromagnetic heating assembly 2.

[0103] By disposing the magnet structure 4, the focusing effect of the magnetic field of the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 can be enhanced, the distribution of the magnetic field can be adjusted, and the distribution of the magnetic field can be optimized, so that the magnetic field is more concentrated on the bottom of the pot or the utensil 200, the magnetic field is more evenly distributed on the surface of the bottom of the pot or the utensil 200, the efficiency of electromagnetic induction heating is improved, and the heating is more uniform and faster.

[0104] In the present embodiment, referring to FIG. 17, the magnet structure 4 comprises two first magnetic pole end portions 41 disposed at the middle of the two first winding units 22, and a first extension portion 42 located between the two first magnetic pole end portions 41.

[0105] The two first magnetic pole end portions 41 of the magnet structure 4 make more magnetic flux pass through the magnetic circuit, reduce magnetic leakage, change the path of the magnetic circuit, and make the magnetic field more concentrated and evenly distributed in the required area, thereby improving the efficiency and performance of the magnetic circuit, and increasing the strength of the magnetic field at the middle of the two first winding units 22 of the second electromagnetic heating assembly 2, further improving the energy efficiency of the coupling between the second electromagnetic heating assembly 2 and the utensil 200.

[0106] Further, the magnet structure 4 further comprises a second magnetic pole end portion 43 disposed at the middle of the first electromagnetic heating assembly 1, a third magnetic pole end portion 44 disposed at the periphery of the first electromagnetic heating assembly 1, and a second extension portion 45 located between the second magnetic pole end portion 43 and the third magnetic pole end portion 44. Similarly, by disposing the second magnetic pole end portion 43, the third magnetic pole end portion 44 and the second extension portion 45, the strength of the magnetic field of the first electromagnetic heating assembly 1 can be increased, and the energy efficiency of the coupling between the first electromagnetic heating assembly 1 and the utensil 200 can be further improved.

[0107] In the third embodiment, the support structure 21 comprises a first support, the first support having a first side and a second side in the first direction; the second electromagnetic heating assembly 2 comprises a second winding unit 24, the second winding unit 24 comprising a multi-turn coil, each turn of the coil comprising a first wire segment 221 and a second wire segment 222 connected to each other and having opposite currents, each turn of the coil being wound around the first side and the second side of the first support, so that the first side of the first support has a plurality of the first wire segments 221, and the second side of the support structure 21 has a plurality of the second wire segments 222.

[0108] Since the first wire segment 221 corresponding to the wok 200 is powered to heat the wok 200 in the second electromagnetic heating assembly 2, the magnetic field formed by the first wire segment 221 extends to the periphery of the outer end region of the first wire segment 221 on one side, so as to have a wider magnetic field area, and extends outwardly to the first wire segment 221 to have a higher magnetic field distribution area, so that the electromagnetic oven can not only heat the bottom of the wok, but also heat a wider area of the bottom of the wok, and can extend to the sidewall of the wok to heat the side of the wok, realizing three-dimensional heating.

[0109] In this embodiment, referring to FIGS. 14 and 15, the cooking utensil 100 further comprises a magnet structure 4, which is arranged between the plurality of first wire segments 221 and the plurality of second wire segments 222; the first electromagnetic heating assembly 1 is arranged on one side of the magnet structure 4 facing the plurality of first wire segments 221.

[0110] Since the second electromagnetic heating assembly 2 generates a higher magnetic field by means of the plurality of first wire segments 221, the magnet structure 4 only needs to be arranged on the second side of the plurality of first wire segments 221, so that the first electromagnetic heating assembly 1 can also share the magnet structure 4, and the first electromagnetic heating assembly 1 is arranged on one side of the magnet structure 4 facing the plurality of first wire segments 221, so as to be compact in structure, and one magnet structure 4 can realize the magnetic conduction of two electromagnetic heating assemblies at the same time.

[0111] Further, referring to FIG. 15, in this embodiment, the first electromagnetic heating assembly 1 is arranged between the magnet structure 4 and the plurality of first wire segments 221.

[0112] In order to ensure the electromagnetic induction heating efficiency of the first electromagnetic heating assembly 1, avoid the incompatibility of IGBTs, and prevent the first electromagnetic heating assembly 1 from failing to work normally or performance degradation, the working distance between the coil winding of the conventional wire coil and the bottom of the wok is generally controlled to be about 10 mm. The setting of this distance can ensure the efficiency of electromagnetic induction heating and reduce energy loss.

[0113] For the second electromagnetic heating assembly 2, in order to ensure the compatibility of the IGBT thereof, the disc spacing of the second electromagnetic heating assembly 2 can be controlled in the range of about 5mm-7mm. In the present application, the magnetic field generated by the first wire segment 221 is used to heat the pot 200, so the first wire segment 221 is arranged to be closer to the pot 200, and the first electromagnetic heating assembly 1 is arranged below the first wire segment 221. Therefore, the first electromagnetic heating assembly 1 is arranged between the first wire segment 221 and the second wire segment 222, so that the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 can work at the best performance.

[0114] Further, in order to avoid the cooking utensil 100 from heating the area that does not need to be heated, please refer to FIG. 14, in the present embodiment, the cooking utensil 100 further comprises a magnetic shielding member 5 arranged at the second side of the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2.

[0115] Specifically, in the present embodiment, the magnetic shielding member 5 comprises a first shielding part arranged at the second side of the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2; and / or, the magnetic shielding member 5 further comprises a second shielding part arranged around the periphery of the electromagnetic heating assembly.

[0116] In this way, the first shielding part with good magnetic conductive performance is arranged, which is conducive to gathering magnetic lines and improving the heating power and heating efficiency of the cooking utensil 100. At the same time, the electronic components arranged below the cooking utensil 100 can be shielded from the magnetic field of the coil, so as to ensure the reliability of the electronic components. When the electromagnetic oven with the cooking utensil 100 is placed on a metal table for use, the magnetic field below can prevent the metal table below the bottom of the electromagnetic oven from being heated.

[0117] Since the magnetic poles formed in the middle of the first winding unit 22 or the second winding unit 24 are close to the edge of the support structure 21, the magnetic field of the part close to the periphery of the cooking utensil 100 will be enhanced accordingly. In order to avoid the electromagnetic action between the first winding unit 22 or the second winding unit 24 and the utensils and articles with magnetic conductive performance on the periphery of the cooking utensil 100, causing false heating, the second shielding part can be arranged to shield the magnetic field well.

[0118] The application also provides a cooking appliance 100, please refer to Figure 14, the cooking appliance 100 comprises the cooking appliance 100 and the electric control device of each embodiment. The specific structure of the cooking appliance 100 is referred to the above embodiments, since the cooking appliance 100 adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0119] The cooking appliance 100 can be an induction cooker or an electric pressure cooker, etc., as long as the cooking appliance 100 has the cooking appliance 100, it belongs to the cooking appliance 100 of the application.

[0120] Further, in order to realize automatic control, in the embodiment, the cooking appliance 100 further comprises a pot 200 detection part, which is used to generate a detection parameter when the energized electromagnetic heating assembly acts between the pot 200 placed in the heating area; the control device 3 is electrically connected with the pot 200 detection part, and is used to control the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 to work according to the pot 200 detection part. The pot 200 detection part can timely detect whether there is a pot 200 or the type of the pot 200 at present, and the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 can both timely adjust according to the detected parameter, so as to facilitate the partial intelligent control of the cooking appliance 100.

[0121] In this embodiment, the cooking appliance 100 further comprises a main body and a control device, the cooking appliance 100 is arranged on the main body, and the control device comprises operation keys and / or a display control area arranged on the surface of the main body; the control device 3 is electrically connected with the control device, and is used to control the electromagnetic heating assembly to heat according to the working of the control device.

[0122] Further, in order to realize automatic control, in the embodiment, the cooking appliance 100 further comprises a pot detection part, which is used to generate a detection parameter when the energized electromagnetic heating assembly acts between the pot placed in the heating area; the control device 3 is electrically connected with the pot detection part, and is used to control the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 to work according to the pot detection part. The pot detection part can timely detect whether there is a pot or the type of the pot at present, and the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 can both timely adjust according to the detected parameter, so as to facilitate the partial intelligent control of the cooking appliance 100.

[0123] In this embodiment, the main body 10 is further provided with a control device, which includes operation keys and / or a display control area arranged on the surface of the main body 10, and the control device 3 is electrically connected with the control device for working according to the control device. In this way, the user can input working instructions through the operation keys or the display control area, and the control device 3 can control the electromagnetic heating components to heat according to the input working instructions.

[0124] Referring to FIG. 1, FIG. 1 is a control device structure diagram of a hardware running environment related to an embodiment of the present application.

[0125] As shown in FIG. 1, the control device 3 can include a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 can include a display and an input unit such as a keyboard, and can also include a standard wired interface and a wireless interface. The network interface 1004 includes a standard wired interface and a wireless interface (such as a wireless fidelity (Wi-Fi) interface). The memory 1005 can be a high-speed random access memory (RAM) or a stable non-volatile memory (NVM), such as a disk memory. The memory 1005 can also be a storage device independent of the aforementioned processor 1001.

[0126] Those skilled in the art can understand that the structure shown in FIG. 1 does not constitute a limitation on the control device 3, and can include more or fewer components than those shown, or combine certain components, or different component arrangements.

[0127] As shown in FIG. 1, the memory 1005 as a storage medium can include an operating system, a network communication device, a user interface device, and a control program of the cooking appliance.

[0128] In the control device 3 shown in FIG. 1, the network interface 1004 is mainly used for data communication with a network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the control device 3 of the present application can be arranged in the control device 3, and the control device 3 calls the control program of the cooking appliance stored in the memory 1005 through the processor 1001, and executes the control method of the cooking appliance provided in the embodiments of the present application.

[0129] The embodiment of the present application provides a control method of a heating device. Referring to FIG. 6, FIG. 6 is a flowchart of an embodiment of a control method of a cooking utensil.

[0130] The control method of the cooking utensil 100 comprises the following steps.

[0131] In step S10, when the pot is placed in the heating area and the cooking instruction is received, the cooking parameter in the cooking instruction is acquired, and the cooking parameter comprises a pot type and / or a heating range of the pot in a height direction.

[0132] In the embodiment, the cooking utensil 100 matches the corresponding cooking program when the different types of pots are used, and the cooking parameters are different when the different types of pots are used.

[0133] For example, when the cooking mode in the cooking instruction is "stir-frying", the cooking control device 3 determines the cooking parameter according to "stir-frying", and determines that the previous pot type information is "wok"; when the cooking mode in the cooking instruction is "stewing", the cooking control device 3 determines the cooking parameter according to "stewing", and determines that the previous pot type information is "large-bottom pot"; when the cooking mode in the cooking instruction is "ordinary", the cooking control device 3 determines the cooking parameter according to "ordinary", and determines that the previous pot type information is "small-bottom pot" or "multi-bottom pot".

[0134] Of course, the pot type in the cooking parameter in the cooking instruction can be directly determined, for example, "large pot", "wok", "small pot" and the like.

[0135] In step S20, one of the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 is controlled to work according to the cooking parameter.

[0136] In the embodiment, when it is determined that the previous pot type is "wok", it is indicated that the demand for pot wall heating is large, and a higher magnetic field needs to be generated in the direction where the heating area is located, so that the second electromagnetic heating assembly 2 is controlled to work; when it is determined that the previous pot type is "large-bottom pot", it is indicated that the demand for the heating range of the pot is large, so that the second electromagnetic heating assembly 2 is controlled to work; when it is determined that the previous pot type is "small-bottom pot" or "multi-bottom pot", it is indicated that the demand for the heating range of the pot is small, so that the first electromagnetic heating assembly 1 is controlled to work.

[0137] It can be understood that when the cooking parameter is directly the pot type, for example, "large pot", it indicates that the heating range requirement for the pot is large, at this time the second electromagnetic heating assembly 2 can be controlled to work, for example, when the pot type is "wok", it indicates that the heating requirement for the pot wall is large, at this time the second electromagnetic heating assembly 2 can also be controlled to work, for example, when the pot type is "small pot", it indicates that the heating requirement for the pot wall and the heating range requirement are small, at this time the first electromagnetic heating assembly 1 can be controlled to work.

[0138] In the technical scheme provided in the application, when the pot type or the heating range requirement of the pot in the height direction is small, the first electromagnetic heating assembly 1 can be controlled to heat, when the pot type or the heating range requirement of the pot in the height direction is large, the second electromagnetic heating assembly 2 can be controlled to heat, according to the pot type and the size of the heating range requirement, one of the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 is flexibly controlled to work, so as to provide a control method of the cooking appliance 100 which can have the functions of pot bottom heating and pot wall heating and can meet the cooking requirements of both stir-frying and soup.

[0139] Further, in order to realize automatic control, referring to FIG. 7, in the embodiment, a pot detection part is arranged in the main body 10, which is used to generate a detection parameter when acting between the electrified electromagnetic heating assembly and the pot placed in the heating area. Step S20: according to the cooking parameter, the step of controlling one of the electromagnetic heating assemblies to work includes:

[0140] Step S201: obtaining the detection parameter.

[0141] It should be noted that the detection method of the pot is related to the material of the pot and the specific heating method of the heating assembly, when the material of the pot is different and the heating method is different, the detection method of the pot is also different, when the electromagnetic oven detects the pot, the electromagnetic oven utilizes the alternating current through the coil to generate the constantly changing alternating magnetic field, and the eddy current is generated in the conductor of the alternating magnetic field. Based on electromagnetic induction and eddy current effect, the pot itself will generate some magnetic field in the heating process, the pot detection part can judge whether the pot is suitable for use by detecting the change of the magnetic field. If the normal change is detected, it indicates that the coupling between the pot and the electromagnetic heating assembly is good, and the electromagnetic oven can work normally; if the abnormal change or no change is detected, it may indicate that the pot is not suitable for use or the coupling is poor. Therefore, the detection parameter obtained can provide a basis for subsequent judgment of the pot condition.

[0142] Step S202: according to the detection parameter, judging whether there is a pot at present, if yes, controlling one of the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 to heat the pot.

[0143] In the embodiment, the pot detection unit can detect the normal change, indicating that there is a pot, and the pot is a magnetic conductive material pot capable of coupling with the electromagnetic heating assembly. At this time, one of the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 can be controlled to start working.

[0144] In the scheme of the present application, the cooking utensil 100 is heated by electromagnetic heating, so the material and size of the pot are limited. The pot detection unit detects that the current pot is a magnetic conductive pot capable of coupling with the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2, and then controls one of the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 to work, so as to achieve the purpose of heating and cooking.

[0145] In an embodiment, in the step S201 of acquiring the detection parameter,

[0146] When receiving the automatic cooking instruction, the second electromagnetic heating assembly 2 is controlled to act on the pot to generate the detection parameter.

[0147] The detection parameter is generated by the coupling between the electromagnetic heating assembly and the pot after the first electromagnetic heating assembly 1 or the second electromagnetic heating assembly 2 is powered on. When the user has a clear cooking method or the user clearly knows the type and size of the pot, the corresponding electromagnetic heating assembly can be directly controlled to start working through the input cooking instruction. At the same time of starting power-on, the corresponding electromagnetic heating assembly can couple with the pot to generate the corresponding detection parameter, and the current pot can be determined whether it couples with the corresponding electromagnetic heating assembly through the detection parameter.

[0148] In the scheme of the present application, if the automatic cooking instruction input by the user is received, the electromagnetic heating assembly that is most suitable for the pot needs to be selected from the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 for heating to improve the heating efficiency. Because the user uses the wok and the large soup pot more frequently in the actual use scenario, in order to make the user's cooking experience better, the second electromagnetic heating assembly 2 is preferentially considered for heating, and therefore, when the automatic cooking instruction is received, the second electromagnetic heating assembly 2 is preferentially controlled to be turned on. Whether the current pot is suitable for heating by the second electromagnetic heating assembly 2 is determined through the coupling condition of the second electromagnetic heating assembly 2 and the pot. If the detection parameter reflects a good coupling condition, the second electromagnetic heating assembly 2 is controlled to work, the response rate is improved, the heating efficiency is improved, and the energy consumption is reduced. If the detection parameter reflects a poor coupling condition, it means that there is no pot or the pot is not suitable for the second electromagnetic heating assembly 2, and the first electromagnetic heating assembly 1 is controlled to be turned on to perform the pot detection step to determine whether there is a pot and whether the pot is suitable for the first electromagnetic heating assembly 1.

[0149] In the embodiment, step S202: according to the detection parameter, it is determined whether there is a pot, and if so, the step of controlling one of the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 to heat the pot includes:

[0150] Step S2021: according to the detection parameter, it is determined that there is a pot, and the type of the pot is determined.

[0151] It can be understood that the “type of the pot” can refer to a “wok”, a “soup pot”, a “double-bottom pot” and the like.

[0152] Because different types of pots can produce different detection parameters when coupled with different electromagnetic heating assemblies, the detection parameter obtained by the pot detection unit can also reflect the type of the current pot.

[0153] Step S2022: according to the type of the pot, one of the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 is controlled to heat the pot.

[0154] In the scheme of the present application, because the sizes of different types of pots and the required coupling magnetic field heights are different, the electromagnetic heating assembly that matches the type of the pot needs to be selected to work. When it is determined that the type of the pot previously requires a larger pot wall heating, a higher magnetic field needs to be generated in the direction of the heating area, and at this time, the second electromagnetic heating assembly 2 can be controlled to work. When it is determined that the pot previously requires a larger heating range, the second electromagnetic heating assembly 2 can be controlled to work. When it is determined that the pot previously requires a smaller heating range, the first electromagnetic heating assembly 1 can be controlled to work.

[0155] Specifically, in an embodiment, the detection parameter comprises a pulse resonance frequency. The pot detection unit comprises an igbt, a resonance capacitor, etc.

[0156] Step S2021: determining, according to the detection parameter, that there is currently a pot, and determining the type of the pot comprises:

[0157] If the pulse resonance frequency is less than a first preset pulse resonance frequency, it is determined that the current pot is a wok or a large-bottom soup pot;

[0158] If the pulse resonance frequency is greater than or equal to the first preset pulse resonance frequency and less than or equal to a second preset pulse resonance frequency, it is determined that the current pot is a small-bottom soup pot or a multi-bottom pot;

[0159] If the pulse resonance frequency is greater than the second preset pulse resonance frequency, it is determined that the current pot is a bad pot.

[0160] It can be understood that when the induction cooker is working, the electromagnetic heating assembly will generate a high-frequency alternating magnetic field, and the metal at the bottom of the pot will respond to this magnetic field. When the pot is well coupled with the electromagnetic heating assembly, the system will adjust the working frequency according to the characteristics of the pot to achieve the best energy transmission and heating effect. If the pot is not well coupled with the heating assembly or is placed incorrectly, the system will detect changes in the magnetic field, affecting the matching of the pulse resonance frequency. By monitoring the changes in these pulse resonance frequencies, the system can determine whether the pot is suitable and whether it is well coupled.

[0161] In the scheme of the present application, the number of pulse resonance frequencies can reflect the coupling condition of the pot and the electromagnetic heating assembly. The first preset pulse resonance frequency and the second preset pulse resonance frequency can be calibrated according to the multiple detection conditions when different types and sizes of pots are coupled with different electromagnetic heating assemblies. The type of the current pot can be determined by comparing the actual detected pulse resonance frequency with the first preset pulse resonance frequency and the second preset pulse resonance frequency.

[0162] Specifically, in an embodiment, step S2022: controlling one of the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 to heat the pot according to the type of the pot comprises:

[0163] If the current pot is a wok or a large-bottom soup pot, the second electromagnetic heating assembly 2 is controlled to work;

[0164] If the current pot is a small-bottom soup pot or a multi-bottom pot, the first electromagnetic heating assembly 1 is controlled to work;

[0165] If the current pot is a bad pot, the first electromagnetic heating assembly 1 is controlled to work at a reduced power.

[0166] In the scheme of the present application, different types of pots have different sizes and different required coupling magnetic field heights, so it is necessary to select the electromagnetic heating assembly that matches the type of the pot to work. When it is determined that the previous type of the pot is a "wok", it means that the pot wall needs to be heated more, and a higher magnetic field needs to be generated in the direction of the heating area. At this time, the second electromagnetic heating assembly 2 can be controlled to work. When it is determined that the previous type of the pot is a "large-bottom soup pot", it means that the range of heating of the pot needs to be larger. At this time, the second electromagnetic heating assembly 2 can be controlled to work. When it is determined that the previous type of the pot is a "small-bottom soup pot" or a "double-bottom pot", it means that the range of heating of the pot needs to be smaller. At this time, the first electromagnetic heating assembly 1 can be controlled to work. When it is determined that the previous type of the pot is a bad pot, for example, the material of the pot is a non-magnetic pot, or the size of the pot is too small, then the first electromagnetic heating assembly 1 is controlled to work at a reduced power.

[0167] Specifically, in an embodiment, the step S20 of controlling one of the first electromagnetic heating assembly 1 and the second electromagnetic heating assembly 2 to work according to the cooking parameters comprises:

[0168] When the pot is a first type of pot, the second electromagnetic heating assembly 2 is controlled to work; or,

[0169] When the pot is a second type of pot, the first electromagnetic heating assembly 1 is controlled to work,

[0170] Wherein, the first type of pot is a pot whose bottom and side need to be heated, and the second type of pot is a pot whose bottom needs to be heated.

[0171] In the scheme of the present application, if the user can accurately judge the type of the pot and the corresponding heating mode without the need for automatic pot detection, when the pot is a first type, i.e. a pot whose bottom and side need to be heated, in order to heat the side of the pot, a higher magnetic field needs to be generated in the direction of the heating area, so that electromagnetic heating can be achieved for the higher part of the side wall of the pot. When the current pot is a second type of pot, there is no need for side wall heating, and only the first electromagnetic heating assembly 1 needs to be controlled to work. In this way, the user only needs to input the corresponding heating mode or select the type of the pot, and the first electromagnetic heating assembly 1 or the second electromagnetic heating assembly 2 can be controlled to work.

[0172] In the embodiment, the first type of cookware includes a frying pan or a large-bottomed soup pot, and the second type of cookware includes a small-bottomed soup pot, a multi-bottomed pot or a bad pot. Of course, the first type of cookware and the second type of cookware are not limited to the above examples, and those skilled in the art can make other changes under the inspiration of the technical spirits of the embodiments of the present application. As long as the functions and effects achieved are the same or similar to those of the embodiments of the present application, they should be covered by the protection scope of the embodiments of the present application.

[0173] The above is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made by using the contents of the present application specification and drawings, or direct / indirect application in other related technical fields under the concept of the present application is included in the patent protection scope of the present application.

Claims

1. A control method of a cooking appliance, wherein, The cooking appliance comprises a main body, a heating area for installing a pot is arranged on the main body, a first electromagnetic heating assembly and a second electromagnetic heating assembly are arranged in the main body, the first electromagnetic heating assembly and the second electromagnetic heating assembly can both perform electromagnetic heating on the pot placed in the heating area, compared with the first electromagnetic heating assembly, the second electromagnetic heating assembly is arranged to generate a higher magnetic field in the direction of the heating area when energized, so that the second electromagnetic heating assembly can perform electromagnetic heating on a higher position of the sidewall of the pot, and a control method of the cooking appliance comprises: When the pot is placed in the heating area and a cooking instruction is received, obtaining a cooking parameter in the cooking instruction, the cooking parameter comprises a pot type and / or a heating range of the pot in the height direction; According to the cooking parameter, one of the first electromagnetic heating assembly and the second electromagnetic heating assembly is controlled to work.

2. The control method of a cooking appliance according to claim 1, wherein, The main body is provided with a pot detection part, which is used to generate a detection parameter when the electromagnetic heating assembly is energized and acts between the pot placed in the heating area; The step of controlling one of the electromagnetic heating assemblies to work according to the cooking parameter comprises: Obtaining the detection parameter; According to the detection parameter, it is judged whether there is a pot currently, if yes, one of the first electromagnetic heating assembly and the second electromagnetic heating assembly is controlled to heat the pot.

3. The control method of a cooking appliance according to claim 2, wherein, In the step of obtaining the detection parameter, When the automatic cooking instruction is received, the second electromagnetic heating assembly is controlled to act with the pot to generate the detection parameter.

4. The control method of a cooking appliance according to claim 3, wherein, The step of judging whether there is a pot currently according to the detection parameter, if yes, one of the first electromagnetic heating assembly and the second electromagnetic heating assembly is controlled to heat the pot comprises: According to the detection parameter, it is determined that there is a pot currently, and the type of the pot is determined; According to the type of the pot, one of the first electromagnetic heating assembly and the second electromagnetic heating assembly is controlled to heat the pot.

5. The control method of a cooking appliance according to claim 4, wherein, The detection parameter comprises a pulse resonance frequency; The step of determining that there is a pot currently according to the detection parameter, and determining the type of the pot comprises: If the pulse resonance frequency is less than a first preset pulse resonance frequency, it is determined that the current pot is a frying pan or a large-bottom soup pot; If the pulse resonance frequency is greater than or equal to the first preset pulse resonance frequency and less than or equal to a second preset pulse resonance frequency, it is determined that the current pot is a small-bottom soup pot or a multi-bottom pot; If the pulse resonance frequency is greater than the second preset pulse resonance frequency, it is determined that the current pot is a bad pot.

6. The control method of a cooking appliance according to claim 5, wherein, The step of controlling one of the first electromagnetic heating assembly and the second electromagnetic heating assembly to heat the pot according to the type of the pot comprises: If the current pot is a frying pan or a large-bottom soup pot, the second electromagnetic heating assembly is controlled to work; If the current pot is a small-bottom soup pot or a multi-bottom pot, the first electromagnetic heating assembly is controlled to work; If the current pot is a bad pot, the first electromagnetic heating assembly is controlled to work at a reduced power.

7. The control method of a cooking appliance according to claim 1, wherein, The step of controlling one of the first electromagnetic heating assembly and the second electromagnetic heating assembly to work according to the cooking parameter comprises: when the pot is a first type of pot, controlling the second electromagnetic heating assembly to work; or when the pot is a second type of pot, controlling the first electromagnetic heating assembly to work, wherein the first type of pot is a pot that requires heating on both the bottom and the side, and the second type of pot is a pot that requires heating on the bottom.

8. The control method of a cooking appliance according to claim 7, wherein, The first type of pot includes a wok or a large-bottomed soup pot, and the second type of pot includes a small-bottomed soup pot, a multi-bottomed pot, or a poor pot.

9. A control device, wherein, The control device includes a memory, a processor, and a cooking appliance control program stored on the memory and executable on the processor, and the cooking appliance control program is configured to implement the steps of the cooking appliance control method according to any one of claims 1 to 6.

10. A cooking appliance, wherein, The cooking appliance includes: a main body provided with a heating area; a first electromagnetic heating assembly and a second electromagnetic heating assembly arranged on the main body, the first electromagnetic heating assembly and the second electromagnetic heating assembly are arranged in a first direction, the first electromagnetic heating assembly and the second electromagnetic heating assembly each have a first side and a second side in the first direction, the first side of the first electromagnetic heating assembly and the second electromagnetic heating assembly is used to correspond to a pot to be heated, and each can perform electromagnetic heating on a pot placed in the heating area, compared with the first electromagnetic heating assembly, the second electromagnetic heating assembly is arranged to generate a higher magnetic field in the direction of the first side of the second electromagnetic heating assembly when energized, so that the second electromagnetic heating assembly can perform electromagnetic heating on a higher part of the side wall of the pot; and The control device according to claim 9, wherein the control device is electrically connected with the first electromagnetic heating assembly and the second electromagnetic heating assembly.

11. The cooking appliance of claim 10, wherein, The cooking appliance further includes a pot detection part for generating a detection parameter when the energized electromagnetic heating assembly acts between the pot detection part and the pot placed in the heating area; The control device is electrically connected with the pot detection part, and is used to control the first electromagnetic heating assembly and the second electromagnetic heating assembly to work according to the pot detection part.

12. The cooking appliance of claim 10, wherein, The second electromagnetic heating assembly includes: a support structure having a first side and a second side arranged opposite in a first direction; a first winding unit including a plurality of turns, each turn of the winding unit including a first wire segment and a second wire segment connected to each other and having opposite currents, each turn of the winding unit being arranged around the first side and the second side of the support structure, so that the first side of the support structure has a plurality of the first wire segments, and the second side of the support structure has a plurality of the second wire segments.

13. The cooking appliance of claim 10, wherein, The second electromagnetic heating assembly includes: a third support; and at least one pair of second winding units, each pair of the second winding units including two second winding units arranged on the third support and distributed along the circumference of the third support, each of the second winding units being arranged in a ring shape and having a first winding ring segment close to the center of the third support and a second winding ring segment close to the edge of the third support; In the pair of second winding units, the directions of the currents of the two second winding units are set to be opposite, so that the middle parts of the two second winding units form opposite magnetic poles, and in at least one of the second winding units, the width of the at least partially segmented first winding ring segment is d1, and the width of the at least partially segmented second winding ring segment is d2, d1 being greater than d2.

14. The cooking appliance of claim 10, wherein, The second electromagnetic heating assembly comprises: a third support; and at least one pair of second winding units, each pair of the second winding units comprising two second winding units arranged on the third support and distributed along the circumference of the third support, each of the second winding units being arranged in a ring shape, having a first winding ring segment close to the center of the third support, and a second winding ring segment close to the edge of the third support; In the pair of second winding units, the directions of the currents of the two second winding units are set to be opposite, so that the middle parts of the two second winding units form opposite magnetic poles, and in at least one of the second winding units, the winding center of the second winding unit is located on the side close to the second winding ring segment of the geometric center.

15. The cooking appliance of claim 13 or 14, wherein, The winding gap of at least part of the first winding ring segment is greater than the winding gap of the second winding ring segment.

16. The cooking appliance of claim 13 or 14, wherein, The number of layers of the first winding unit at the first winding ring segment is N1, and the number of layers of the first winding unit at the second winding ring segment is N2, wherein N2 is greater than N1.

17. The cooking appliance of claim 10, wherein, The first electromagnetic heating assembly is arranged on the second side of the second electromagnetic heating assembly.

18. The cooking appliance of claim 17, wherein, The cooking utensil further comprises a magnet structure arranged on the second side of the second electromagnetic heating assembly. The first electromagnetic heating assembly is arranged on the side of the magnet structure facing the second electromagnetic heating assembly.

19. The cooking appliance of claim 18, wherein, The magnet structure comprises two first magnetic pole ends arranged corresponding to the middle parts of the two first winding units, and a first extension part located between the two first magnetic pole ends.

20. The cooking appliance of claim 18, wherein, The magnet structure further comprises a second magnetic pole end arranged corresponding to the middle part of the first electromagnetic heating assembly, a third magnetic pole end arranged corresponding to the periphery of the first electromagnetic heating assembly, and a second extension part located between the second magnetic pole end and the third magnetic pole end.

21. The cooking appliance of claim 12, wherein, The cooking utensil further comprises a magnet structure arranged between the plurality of first wire segments and the plurality of second wire segments. The first electromagnetic heating assembly is arranged on the side of the magnet structure facing the plurality of first wire segments.

22. The cooking appliance of claim 21, wherein, The first electromagnetic heating assembly is arranged between the magnet structure and the plurality of first wire segments.

23. The cooking appliance of claim 10, wherein, The cooking utensil further comprises a magnetic shield arranged on the second side of the first electromagnetic heating assembly and the second electromagnetic heating assembly.

24. The cooking appliance of claim 23, wherein, The magnetic shield comprises a first shielding part arranged on the second side of the first electromagnetic heating assembly and the second electromagnetic heating assembly; and / or, The magnetic shield further comprises a second shielding part arranged in a ring around the periphery of the electromagnetic heating assembly.

25. The cooking appliance of claim 10, wherein, The main body is further provided with a control device, which comprises an operation key and / or a display control area arranged on the surface of the main body, and the control device is electrically connected with the control device for working according to the control device.

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