Cooking utensil

Abstract

The utility model discloses a cooking utensil, relates to cooking utensil technical field, the cooking utensil includes main part, electric heating device, electromagnetic heating device and control device, main part includes panel, panel upper side has heating area, electric heating device is provided in the main part, includes at least two heating part of zoning setting, electromagnetic heating device is provided in the main part, electromagnetic heating device is provided in the main part. The two heating parts comprise a first heating part and a second heating part, the electromagnetic heating device is arranged in the main body and comprises a first coil assembly arranged on the lower side of the electric heating device, and an electromagnetic field of the first coil assembly can penetrate through the electric heating device upwards so as to conduct electromagnetic heating on cookware arranged in the heating area; the control device is electrically connected with the electric heating device and the electromagnetic heating device so as to at least control the two heating parts of the electric heating device to work independently and control the electromagnetic heating device to work. Through the arrangement, the first coil assembly can be protected, and the heating power of the cooking utensil is improved.

Description

Technical Field

[0001] This utility model relates to the field of cooking utensils technology, and in particular to a cooking utensil. Background Technology

[0002] Existing cooking appliances that combine electromagnetic and infrared heating have two heating modes within the same heating zone, mainly in two ways: one is to use electromagnetic and infrared heating in inner and outer rings for mixed heating; this is simple in structure but has poor heating performance; the other is to use infrared and electromagnetic heating in an overlapping manner for mixed heating. Since both the infrared component and the electromagnetic coil component can be set to a heating area comparable to the size of the heating zone, single electromagnetic or single infrared heating can achieve high-power heating, or a combination of both can achieve high-power heating, resulting in better heating performance.

[0003] However, while existing hybrid heating cooking appliances can achieve hybrid heating, the heat from the infrared heating plate is conducted to the surface of the coil, causing the coil temperature to rise. Moreover, during electromagnetic heating, the coil itself also generates heat, leading to a temperature increase. When higher heating power is required within a certain period of time, the coil temperature will rise sharply, which can easily damage the coil's insulation layer or even burn out the coil. Utility Model Content

[0004] The main purpose of this invention is to propose a cooking appliance that aims to improve the problem that existing hybrid heating cooking appliances are prone to damage or even burnout of the coil when performing high-power heating.

[0005] To achieve the above objectives, the cooking utensil proposed in this utility model includes:

[0006] The main body includes a panel, the upper side of which has a heating area;

[0007] An electric heating device is disposed within the main body. The electric heating device includes at least two heating elements arranged in sections, and the two heating elements include a first heating element and a second heating element.

[0008] An electromagnetic heating device is disposed within the main body. The electromagnetic heating device includes a first coil assembly disposed below the electric heating device. The electromagnetic field of the first coil assembly is capable of passing upwards through the electric heating device to electromagnetically heat a cookware placed in the heating area.

[0009] A control device is electrically connected to the electric heating device and the electromagnetic heating device, so as to at least control the two heating parts of the electric heating device to work independently and control the operation of the electromagnetic heating device.

[0010] In one embodiment, the first heating element and the second heating element are arranged in parallel so that the control device can control each heating element of the electric heating device to work independently.

[0011] In one embodiment, the electric heating device includes an infrared heating device, and the heating element includes a heating wire.

[0012] In one embodiment, the second heating element is arranged in a ring shape and located around the first heating element;

[0013] The first coil assembly is at least partially misaligned with the first heating element and / or the second heating element.

[0014] In one embodiment, two first coil assemblies are provided, and the two first coil assemblies are respectively at least partially offset from the first heating element and the second heating element.

[0015] In one embodiment, one of the first coil assemblies is arranged in a ring and is disposed around the other first coil assembly.

[0016] In one embodiment, the two first coil assemblies are connected in parallel so that the control device can control the two first coil assemblies to operate independently.

[0017] In one embodiment, the first coil assembly is at least partially offset from one of the heating elements; and / or,

[0018] The first coil assembly is at least partially offset from one of the heating elements. The projected area of ​​the first coil assembly on the horizontal plane is A, and the projected area of ​​the portion of the first coil assembly offset from the first heating element and / or the second heating element on the horizontal plane is B, where B ≥ 0.5A.

[0019] In one embodiment, the electromagnetic heating device further includes a second coil assembly, which is disposed around the periphery of the first coil assembly and the electric heating device, and is at least arranged upwards to correspond to the heating area, so as to be able to electromagnetically heat the cookware.

[0020] In one embodiment, the second coil assembly is arranged in a ring shape and includes multiple turns of coil arranged in layers along the vertical direction; or,

[0021] The second coil assembly is arranged in a ring and includes multiple turns of coil arranged in layers from the inside out;

[0022] The control device is electrically connected to the first coil assembly and the second coil assembly respectively, so as to control the first coil assembly and the second coil assembly to work independently.

[0023] In one embodiment, the first coil assembly and the second coil assembly are connected in parallel so that the control device can control the first coil assembly and the second coil assembly to work independently.

[0024] In one embodiment, the electric heating device further includes a heat insulation part disposed below the heating part and located between the heating part and the electromagnetic heating device.

[0025] In this invention, to ensure the heating performance of the electric heating device, it is positioned close to the heating area of ​​the panel, so that the first heating element and the second heating element are close to the heating area. When the cooking appliance needs to switch to a mixed heating mode to heat the heating area on the panel, the control device controls the first coil assembly to be energized. The first coil assembly operates and generates an electromagnetic field. The electromagnetic field generated by the first coil assembly can pass upward through the electric heating device to couple with the pot in the heating area, providing electromagnetic heating to the heating area. At the same time, the control device controls one of the first heating element and the second heating element to work independently. In this case, the electric heating device only works partially, and the heat generated by the electric heating device is reduced. Therefore, the heat conducted downward by the electric heating device to the surface of the first coil assembly is also reduced, thereby reducing the impact of the electric heating device on the temperature rise of the first coil assembly. This alleviates the overheating problem caused by the heat transferred downward by the electric heating device plus the heat generated by the first coil assembly itself. This reduces the probability of damage to the insulation layer of the first coil assembly, protects the first coil assembly from burning out, and improves the heating power of the cooking appliance. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the structure of an embodiment of the cooking utensil provided by this utility model;

[0028] Figure 2 for Figure 1 A cross-sectional view of a Chinese cooking utensil;

[0029] Figure 3 for Figure 1A schematic projection of the second heating element and the first coil assembly (in one embodiment) onto a horizontal plane;

[0030] Figure 4 for Figure 1 A schematic projection of the second heating element and the first coil assembly (another embodiment) on a horizontal plane;

[0031] Figure 5 for Figure 1 A schematic projection of the heating device and the second coil assembly (in one embodiment) on a horizontal plane;

[0032] Figure 6 for Figure 1 A schematic projection of the heating device and the second coil assembly (another embodiment) on a horizontal plane.

[0033] Explanation of icon numbers:

[0034] 100. Cooking utensil; 1. Main body; 11. Panel; 2. Electric heating device; 21. First heating element; 22. Second heating element; 23. Heat insulation element; 3. Electromagnetic heating device; 31. First coil assembly; 32. Second coil assembly; 4. Control device; 5. Fan; 6. Operating device.

[0035] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0038] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0039] Existing cooking appliances that combine electromagnetic and infrared heating have two heating modes within the same heating zone, mainly in two ways: one is to use electromagnetic and infrared heating in inner and outer rings for mixed heating; this is simple in structure but has poor heating performance; the other is to use infrared and electromagnetic heating in an overlapping manner for mixed heating. Since both the infrared component and the electromagnetic coil component can be set to a heating area comparable to the size of the heating zone, single electromagnetic or single infrared heating can achieve high-power heating, or a combination of both can achieve high-power heating, resulting in better heating performance.

[0040] However, while existing hybrid heating cooking appliances can achieve hybrid heating, the heat from the infrared heating plate is conducted to the surface of the coil, causing the coil temperature to rise. Moreover, during electromagnetic heating, the coil itself also generates heat, leading to a temperature increase. When higher heating power is required within a certain period of time, the coil temperature will rise sharply, which can easily damage the coil's insulation layer or even burn out the coil.

[0041] In view of this, the present invention proposes a cooking appliance. It aims to improve the problem that existing hybrid heating cooking appliances are prone to coil damage or even burnout when performing high-power heating operations.

[0042] Please see Figure 1-2In one embodiment of this utility model, the cooking appliance 100 includes a main body 1, an electric heating device 2, an electromagnetic heating device 3, and a control device 4. The main body 1 includes a panel 2, the upper side of which has a heating area. The electric heating device 2 is disposed within the main body 1 and includes at least two heating parts arranged in sections, the two heating parts including a first heating part 21 and a second heating part 22. The electromagnetic heating device 3 is disposed within the main body 1 and includes a first coil assembly 31 disposed below the electric heating device 2. The electromagnetic field of the first coil assembly 31 can pass upward through the electric heating device 2 to electromagnetically heat the pot placed in the heating area. The control device 4 is electrically connected to the electric heating device 2 and the electromagnetic heating device 3, so as to be able to control the two heating parts of the electric heating device to work independently and control the operation of the electromagnetic heating device 3.

[0043] In the technical solution of this utility model, to ensure the heating performance of the electric heating device 2, the electric heating device is positioned close to the heating area of ​​the panel 2, so that the first heating part 21 and the second heating part 22 are close to the heating area. When the cooking appliance 100 needs to switch to the mixed heating mode to perform mixed heating on the heating area on the panel 2, the control device 4 controls the first coil assembly 31 to be energized. The first coil assembly 31 works and generates an electromagnetic field. The electromagnetic field generated by the first coil assembly 31 can pass upward through the electric heating device 2 to couple with the pot at the heating area, providing electromagnetic heating function to the heating area. At the same time, the control device 4... Device 4 controls one of the first heating element 21 and the second heating element 22 to work independently. At this time, the electric heating device 2 only works partially, and the heat generated by the electric heating device 2 is reduced. Therefore, the heat conducted downward by the electric heating device 2 to the surface of the first coil assembly 31 is also reduced, thereby reducing the impact of the electric heating device 2 on the temperature rise of the first coil assembly 31. This alleviates the overheating problem caused by the heat transferred downward by the electric heating device 2 plus the heat generated by the first coil assembly 31 itself. While reducing the probability of damage to the insulation layer of the first coil assembly 31 and protecting the first coil assembly 31 from being burned, the heating power of the cooking appliance 100 is also increased.

[0044] It should be noted that, in order to further reduce the impact of the electric heating device 2 on the temperature of the first coil assembly 31 during operation, in one embodiment of this utility model, the first coil assembly 31 and one of the heating elements are at least partially misaligned. With this configuration, when the control device 4 controls one of the first heating element 21 and the second heating element 22 to operate independently, the independently operating heating element is at least partially misaligned with the first coil assembly 31. Only a portion of the heat generated by this heating element during operation can be conducted to the surface of the first coil assembly 31, thereby further reducing the heat conducted from the electric heating device 2 to the first coil assembly 31, thus further maintaining the operating temperature of the first coil assembly 31 and protecting it.

[0045] Of course, it is understood that this utility model does not limit which of the first heating element 21 and the second heating element 22 is at least partially misaligned with the first coil assembly 31. In one embodiment of this utility model, the first heating element 21 and the first coil assembly 31 are at least partially misaligned. In this embodiment, if the cooking appliance 100 needs to perform mixed heating on the heating area on the panel 2, the control device 4 controls the first heating element 21 to work independently and controls the first coil assembly 31 to work independently. With this configuration, since the first heating element 21 and the first coil assembly 31 are at least partially misaligned, only a portion of the heat generated when the first heating element 21 is working can be transferred downwards to the first coil assembly 31, which can alleviate the overheating problem of the first coil assembly 31, protect the first coil assembly 31 from being burned out, and increase the service life of the first coil assembly 31.

[0046] In another embodiment of this utility model, the second heating element 22 and the first coil assembly 31 are at least partially misaligned. Thus, in this embodiment, if the cooking appliance 100 needs to perform mixed heating on the heating area on the panel 2, the control device 4 controls the second heating element 22 to work independently, while simultaneously controlling the first coil assembly 31 to work. Since the second heating element 22 and the first coil assembly 31 are at least partially misaligned, only a portion of the heat generated by the second heating element 22 can be transferred to the first coil assembly 31. This reduces the probability of the first coil assembly 31 overheating and increases its service life.

[0047] Of course, in another embodiment of this utility model, the first coil assembly 31 can also be configured to be at least partially offset from both the first heating element 21 and the second heating element 22. With this configuration, when the cooking appliance 100 needs to perform mixed heating on the heating area on the panel 2, the control device 4 controls the first coil assembly 31 to work, and can also control either the first heating element 21 or the second heating element 22 to work independently. Since both heating elements are at least partially offset from the first coil assembly 31, no matter which heating element is controlled to work, only a portion of the heat emitted by that heating element can be transferred to the first coil assembly 31, thereby reducing the influence of the heating element on the temperature of the first coil assembly 31 and improving the service life of the first coil assembly 31.

[0048] Specifically, in order to ensure the heating efficiency of the first coil assembly 31 while stabilizing its temperature, in a specific embodiment of this utility model, the first coil assembly 31 is at least partially offset from one of the heating elements. The projected area of ​​the first coil assembly 31 on the horizontal plane is A, and the projected area of ​​the portion of the first coil assembly 31 that is offset from the first heating element 21 and / or the second heating element 22 on the horizontal plane is B, where B ≥ 0.5A.

[0049] In the preferred embodiment of this utility model, please refer to Figure 3-4 The first coil assembly 31 is completely offset from the first heating element 21 and / or the second heating element 22, i.e., B=A. In this way, the heat generated by the electric heating device 2 can minimize the influence of the heat on the temperature of the first coil assembly 31.

[0050] Of course, please see Figure 2 To further reduce the impact of the heat generated by the electric heating device 2 on the temperature of the first coil assembly 31, a heat insulation structure can be provided between the electric heating device 2 and the first coil assembly 31. In one embodiment of this invention, the electric heating device 2 further includes a heat insulation part 23, which is located below the heating part and between the heating part and the electromagnetic heating device 3. The heat insulation part 23 can further reduce the heat transfer from the electric heating device 2 to the electromagnetic heating device 3, thereby further reducing the impact of the electric heating device 2 on the electromagnetic heating device 3 and alleviating the overheating problem caused by the heat transferred downward by the electric heating device 2 combined with the heat generated by the first coil assembly 31 itself.

[0051] It is understood that the present invention does not limit the specific material of the heat insulation part 23. In one embodiment of the present invention, the material of the heat insulation part 23 may be set as silica; in another embodiment of the present invention, the material of the heat insulation part 23 may also be set as ceramic fiber; and in other embodiments of the present invention, the material of the heat insulation part 23 may also be set as glass fiber, silicate or other materials.

[0052] Furthermore, the heat insulation part 23 is not limited to a single material. In another embodiment of this utility model, the material of the heat insulation part 23 can also be set as a variety of materials including silica, ceramic fiber, glass fiber, and silicates. In actual installation, the material can be selected according to the requirements.

[0053] It should be further explained that, in order to ensure that the first heating element 21 and the second heating element 22 can work independently without affecting the other heating element, in a further embodiment of the present invention, the first heating element 21 and the second heating element 22 are arranged in parallel. This arrangement enables the control device 4 to control the first heating element 21 and the second heating element 22 to work independently, thereby ensuring the normal operation of the mixed heating function of the cooking appliance 100.

[0054] Similarly, this utility model does not limit the specific arrangement of the first heating element 21 and the second heating element 22. In one embodiment of this utility model, the first heating element 21 and the second heating element 22 can be arranged at intervals in a certain horizontal direction.

[0055] In another embodiment of this invention, the second heating element 22 can be annular in shape and positioned around the periphery of the first heating element 21. This arrangement allows both the first heating element 21 and the second heating element 22 to be more accurately aligned with the heating area of ​​the panel 2, thereby improving the heating efficiency of the electric heating device 2.

[0056] In another embodiment of this utility model, the first heating element 21 can be ring-shaped and arranged around the second heating element 22. This arrangement can also improve the heating efficiency of the electric heating device 2.

[0057] Specifically, the specific shape and arrangement of the first heating element 21 and the second heating element 22 can be selected according to the requirements during actual installation, and this utility model does not impose any restrictions on them.

[0058] Of course, this invention does not limit the specific shape of the first coil assembly 31. In one embodiment of this invention, the first coil assembly 31 can be circular; while in another embodiment, the first coil assembly 31 can also be annular. The shape can be selected according to actual requirements.

[0059] It should also be further noted that the present invention does not limit the specific number of the heating elements. In another embodiment of the present invention, there are three heating elements, and the three heating elements include a third heating element, which is spaced apart from the first heating element 21 and the second heating element 22.

[0060] In other embodiments of this utility model, the number of heating elements can be set to four or other numbers, which can be selected according to the actual needs.

[0061] Similarly, it is understood that this utility model does not limit the specific number of the first coil assembly 31. In one embodiment of the utility model, the number of the first coil assembly 31 is set to two. Of the two first coil assemblies 31, one first coil assembly 31 is at least partially offset from the first heating element 21, and the other first coil assembly 31 is at least partially offset from the second heating element 22. With this configuration, in this embodiment, if the cooking appliance 100 needs to perform mixed heating, the control device 4 can control one of the first coil assemblies 31 to work independently, and simultaneously control the first heating element 21 to work independently, so as to reduce the influence of the electric heating device 2 on the temperature of the working first coil assembly 31 while achieving mixed heating; or, the control device 4 can also control the other first coil assembly 31 to work independently, and simultaneously control the second heating element 22 to work independently, thus also reducing the influence of the electric heating device 2 on the temperature of the normally operating first coil assembly 31 while achieving mixed heating.

[0062] In another embodiment of this utility model, the first coil assembly 31 may be provided in three parts. Of the three first coil assemblies 31, one first coil assembly 31 is at least partially offset from the first heating element 21, another first coil assembly 31 is at least partially offset from the second heating element 22, and the remaining first coil assembly 31 is at least partially offset from both the first heating element 21 and the second heating element 22. When the cooking appliance 100 needs to perform mixed heating, the control device 4 can control one of the first coil assemblies 31 to work together with the first heating element 21; or control another first coil assembly 31 to work together with the second heating element 22; or control the remaining first coil assembly 31 to work, while simultaneously controlling either the first heating element 21 or the second heating element 22 to work. This arrangement also enables the mixed heating of the cooking appliance 100 while protecting the lifespan of the working first coil assembly 31.

[0063] In other embodiments of this utility model, the specific number of the first coil assembly 31 can be set to four or other numbers, which can be selected according to the actual needs.

[0064] Furthermore, when there are multiple first coil components 31, there can be various arrangement forms among the multiple first coil components 31. This utility model does not limit the arrangement form among the multiple first coil components 31. In one embodiment of this utility model, the number of first coil components 31 is set to two. In the two first coil components 31, one first coil component 31 and the other first coil component 31 are arranged horizontally and upwardly at intervals.

[0065] In another embodiment of this utility model, two first coil assemblies 31 are provided. One of the first coil assemblies 31 is arranged in a ring shape and is located around the periphery of the other first coil assembly 31. This arrangement allows the two first coil assemblies 31 to be more accurately aligned with the heating area of ​​the panel 2, thereby improving the heating efficiency of the electromagnetic heating device 3.

[0066] Of course, in other embodiments of this utility model, when the number of the first coil assembly 31 is set to multiple, the multiple first coil assemblies 31 can also be arranged in other ways. In actual setting, it can be selected according to the needs, as long as it is ensured that the multiple first coil assemblies 31 are at least partially misaligned with the first heating part 21 and the second heating part 22 respectively.

[0067] When there are multiple first coil components 31, in order to ensure that each of the multiple first coil components 31 can work independently without affecting the other first coil components 31, thereby ensuring that the cooking appliance 100 will not cause the temperature of any first coil component 31 to rise sharply during mixed heating to avoid overheating, in one embodiment of the present invention, multiple first coil components 31 are arranged in parallel.

[0068] In one specific embodiment of this utility model, two first coil assemblies 31 are provided, and the two first coil assemblies 31 are connected in parallel. In this way, the control device 4 can control the two first coil assemblies 31 to work independently, thereby ensuring the normal operation of the mixed heating of the cooking appliance 100 and ensuring the service life of the first coil assemblies 31.

[0069] In addition, to improve the heating efficiency of the cooking appliance 100 during mixed heating, the heating area of ​​the electromagnetic heating device 3 can be further increased. In one embodiment of the present invention, the electromagnetic heating device 3 further includes a second coil assembly 32, which is arranged around the first coil assembly 31 and the electric heating device 2, and is at least arranged upward to correspond to the heating area, so as to be able to electromagnetically heat the cookware. It is understood that in this embodiment, the second coil assembly 32 is arranged around the electric heating device 2, that is, the second coil assembly 32 and the electric heating device 2 are misaligned. With this arrangement, if the cooking appliance 100 needs to perform mixed heating, the control device 4 can control the second coil assembly 32 to work. The electromagnetic field generated by the second coil assembly 32 can be directed upwards around the electric heating device 2 to couple with the pot in the heating area, providing electromagnetic heating function to the heating area. At the same time, the control device 4 can also control the first heating part 21 and the second heating part 22 to work simultaneously to electrically heat the heating area of ​​the panel 2. At this time, since the second coil assembly 32 and the electric heating device 2 are misaligned, only a small portion of the heat generated by the electric heating device 2 will be conducted to the second coil assembly 32, which will not cause a sharp increase in the temperature of the second coil assembly 32. This can further improve the heating efficiency of the cooking appliance 100 while ensuring the service life of the second coil assembly 32.

[0070] Of course, the present invention does not limit the specific shape of the second coil assembly 32. In one embodiment of the present invention, the second coil assembly 32 is rectangular and is arranged horizontally at intervals from the electric heating device 2 and the first coil assembly 31. In another embodiment of the present invention, the second coil assembly 32 is annular. In this case, the second coil assembly 32 is located on the periphery of the first coil assembly 31 and on the periphery of the electric heating device 2.

[0071] Specifically, in this embodiment, the second coil assembly 32 is arranged in a ring shape.

[0072] It is understood that the second coil assembly 32 is composed of multi-turn coil windings, and this utility model does not limit the arrangement of the multi-turn coils in the second coil assembly 32. Please refer to [link / reference]. Figure 5In one embodiment of this utility model, the second coil assembly 32 includes multiple turns of coil arranged in layers along the vertical direction. This arrangement, with the multiple turns of coil arranged vertically, reduces the horizontal space occupied by the second coil assembly 32, thereby reducing the horizontal size of the cooking appliance 100 and optimizing its miniaturization.

[0073] Please see Figure 6 In another embodiment of this utility model, the second coil assembly 32 includes multiple turns of coil arranged in layers from the inside out. With this arrangement, all the multiple turns of coil are on the same horizontal plane, and since the second coil assembly 32 is arranged at least upwards to correspond to the heating area, the multiple turns of the second coil assembly 32 are all located close to the heating area of ​​the panel 2. When the control device 4 controls the second coil assembly 32 to operate, the second coil assembly 32 can further improve the electromagnetic heating efficiency, thereby improving the heating efficiency of the cooking appliance 100.

[0074] Of course, in this utility model, the first coil assembly 31 and the second coil assembly 32 can work independently without affecting each other. In one embodiment of the utility model, the control device 4 can control only the first coil assembly 31 to work; in another embodiment of the utility model, the control device 4 can also control only the second coil assembly 32 to work; in yet another embodiment of the utility model, the control device 4 can also control both the first coil assembly 31 and the second coil assembly 32 to work together, and each work independently.

[0075] When the electromagnetic heating device 3 heats the heating area of ​​the panel 2, the electromagnetic field of the electromagnetic heating device 3 extends in multiple directions. To prevent the electromagnetic field extended by the electromagnetic heating device 3 from affecting other devices, in a further embodiment of this invention, the cooking appliance 100 also includes a magnet disposed below the electromagnetic heating device 3 to block the downward-extending electromagnetic field of the electromagnetic heating device 3. This arrangement can block the electromagnetic field of the electromagnetic heating device 3 in directions away from the heating area, thereby improving the safety of using the cooking appliance 100.

[0076] Of course, to further increase the user's selection of the mixed heating mode of the cooking appliance 100, and to ensure that the first coil assembly 31 and the second coil assembly 32 can work independently without affecting each other, in one embodiment of this utility model, the first coil assembly 31 and the second coil assembly 32 are arranged in parallel. This allows the control device 4 to control the first coil assembly 31 and the second coil assembly 32 to work independently, thereby ensuring the normal operation of the mixed heating function of the cooking appliance 100.

[0077] It is understood that in this utility model, the cooking appliance 100 can also use single-mode heating. In one embodiment of this utility model, the control device 4 can control only the electric heating device 2 to work, while the electromagnetic heating device 3 does not work, so as to perform fully independent electric heating.

[0078] In another embodiment of this utility model, the control device 4 may control only the electromagnetic heating device 3 to work, while the electric heating device 2 does not work, so as to perform fully independent electromagnetic heating.

[0079] It should be noted that when the cooking appliance 100 is performing fully independent electromagnetic heating, the cooking appliance 100 can also adjust the specific heating range and heating power of the electromagnetic heating through the control device 4. In a specific embodiment of this utility model, two first coil assemblies 31 are provided, and the electromagnetic heating device 3 also includes a second coil assembly 32. In this case, the control device 4 can control only the two first coil assemblies 31 to work, or control the second coil assembly 32 to work with one of the first coil assemblies 31, or control the second coil assembly 32 to work with the other first coil assembly 31, or control the second coil assembly 32 and the two first coil assemblies 31 to work together. In actual settings, the appropriate option can be selected according to the requirements.

[0080] It is understood that the electric heating device 2 generates heat through its own heating element and then transfers the heat to the heating area on the panel 2. Based on this, the present invention does not limit the specific heating form of the electric heating device 2. In one embodiment of the present invention, the electric heating device 2 includes a resistance heating device, and the heating element includes a resistance wire. With this configuration, when the cooking appliance 100 needs to be electrically heated, the control device 4 controls the resistance heating device to work, that is, to supply power to the resistance heating device. When the current passes through the resistance wire, electrical energy is converted into heat energy, and the resistance wire generates heat to heat the heating area of ​​the panel 2.

[0081] In another embodiment of this utility model, the electric heating device 2 includes an infrared heating device, and the heating part includes a heating wire. With this configuration, when the cooking appliance 100 needs to be electrically heated, the control device 4 controls the infrared heating device to operate, and the heating wire emits heat to heat the heating area of ​​the panel 2.

[0082] Specifically, in this embodiment, the electric heating device 2 is configured as an infrared heating device, and the heating element is configured as a heating wire.

[0083] It should be noted that this utility model does not limit the specific material of the heating wire. In one embodiment of this utility model, the heating wire can be made of iron-chromium-aluminum alloy; in another embodiment of this utility model, the heating wire can also be made of nickel-chromium alloy; and in other embodiments of this utility model, the heating wire can also be made of chromium-aluminum-molybdenum alloy, chromium-aluminum-niobium alloy, carbon fiber or other materials, as long as its resistivity is not less than 0.1 μΩ·m.

[0084] Of course, the heating wire can also be made of various materials such as iron-chromium-aluminum alloy, nickel-chromium alloy, chromium-aluminum-molybdenum alloy, chromium-aluminum-niobium alloy, and carbon fiber. The appropriate material can be selected based on specific requirements during actual installation.

[0085] It should also be noted that, please refer to Figure 1 In this utility model, in order to further maintain the temperature of the electromagnetic heating device 3 and alleviate its rapid temperature rise, in one embodiment of this utility model, the cooking appliance 100 further includes a fan 5. The fan 5 is disposed inside the main body and located below the electromagnetic heating device 3. The fan 5 is used to blow on the electromagnetic heating device to maintain the temperature of the electromagnetic heating device.

[0086] In addition, in order to facilitate the user's operation of the cooking appliance 100, the cooking appliance 100 also includes an operating device 6. The operating device 6 is provided with buttons for the user to operate, and the buttons are used for the user to control the electric heating device 2 and the electromagnetic heating device 3.

[0087] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A cooking appliance characterized by, The application relates to a cooking device, comprising: a main body comprising a panel, an upper side of the panel being provided with a heating area; an electric heating device arranged in the main body, the electric heating device comprising at least two heating portions arranged in zones, the two heating portions comprising a first heating portion and a second heating portion; an electromagnetic heating device arranged in the main body, the electromagnetic heating device comprising a first coil assembly arranged on a lower side of the electric heating device, an electromagnetic field of the first coil assembly being capable of penetrating the electric heating device upwardly to perform electromagnetic heating on a pot placed on the heating area; and a control device electrically connected with the electric heating device and the electromagnetic heating device, so as to control the two heating portions of the electric heating device to work independently and control the electromagnetic heating device to work.

2. The cooking appliance of claim 1, wherein, The first heating portion and the second heating portion are arranged in parallel, so that the control device can control the two heating portions of the electric heating device to work independently.

3. The cooking appliance of claim 1, wherein, The electric heating device comprises an infrared heating device, and the heating portions comprise heating wires.

4. The cooking appliance of claim 1, wherein, The second heating portion is arranged in a ring shape and located at the periphery of the first heating portion. The first coil assembly is at least partially misaligned with the first heating portion and / or the second heating portion.

5. The cooking appliance of claim 1, wherein, The first coil assembly is at least partially misaligned with the first heating portion and / or the second heating portion.

6. The cooking appliance of claim 5, wherein, One of the first coil assemblies is arranged in a ring shape and located at the periphery of the other first coil assembly.

7. The cooking appliance of claim 5, wherein, The two first coil assemblies are arranged in parallel, so that the control device can control the two first coil assemblies to work independently.

8. The cooking appliance of claim 1, wherein, The first coil assembly is at least partially misaligned with one of the heating portions; and / or The first coil assembly is at least partially misaligned with one of the heating portions, a projection area of the first coil assembly on a horizontal plane is A, and a projection area of the part of the first coil assembly misaligned with the first heating portion and / or the second heating portion on the horizontal plane is B, B>=0.5A.

9. The cooking appliance of claim 1, wherein, The electromagnetic heating device further comprises a second coil assembly, the second coil assembly is arranged corresponding to the first coil assembly and the periphery of the electric heating device, and at least upwardly arranged to the heating area, so as to be capable of performing electromagnetic heating on the pot.

10. The cooking appliance of claim 9, wherein, The second coil assembly is arranged in a ring shape and comprises a plurality of turns of coils arranged in layers along the up-down direction; or The second coil assembly is arranged in a ring shape and comprises a plurality of turns of coils arranged in layers from the inside to the outside. The control device is electrically connected with the first coil assembly and the second coil assembly, so as to control the first coil assembly and the second coil assembly to work independently.

11. The cooking appliance of claim 10, wherein, The first coil assembly and the second coil assembly are arranged in parallel, so that the control device can control the first coil assembly and the second coil assembly to work independently.

12. The cooking appliance of claim 1, wherein, The electric heating device further comprises a heat insulation portion, the heat insulation portion is arranged below the heating portion and between the heating portion and the electromagnetic heating device.

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