Electromagnetic heating device and cooking utensil

Abstract

The utility model discloses an electromagnetic heating device, which relates to the technical field of cooking utensils and comprises a support structure, a coil assembly and a magnet structure. The support structure comprises a supporting main body part and a side supporting part, the supporting main body part extends in the horizontal direction, and the side supporting part is arranged on the periphery of the supporting main body part and extends upwards; the coil assembly comprises a first coil assembly and a second coil assembly, the first coil assembly is arranged on the supporting main body part in the horizontal direction, and the second coil assembly is wound on one side of the side supporting part and is distributed in the vertical direction; the magnet structure is arranged on the support structure and located on the lower side of the coil assembly. According to the technical scheme provided by the utility model, the first coil assembly and the second coil assembly can be conveniently wound on the bracket, so that the production difficulty is reduced.

Description

Technical Field

[0001] This utility model relates to the field of cooking appliance technology, and in particular to an electromagnetic heating device and a cooking appliance. Background Technology

[0002] In the prior art, the electromagnetic heating device includes a first coil assembly and a second coil assembly. The first coil assembly is wound on the same horizontal plane, while the second coil assembly is wound vertically stacked. It is difficult to share the same tight winding process with the first group of windings. Moreover, the horizontal plane of the coil is constantly changing during the winding process, and the adjacent coils are in a loose state, making it impossible to fix them neatly on the support in a short time, thereby increasing the difficulty of production. Utility Model Content

[0003] The main purpose of this invention is to provide an electromagnetic heating device and cooking appliance, which facilitates the winding of the first coil assembly and the second coil assembly onto a support, thereby reducing the difficulty of production.

[0004] To achieve the above objective, an electromagnetic heating device includes:

[0005] The support structure includes a main support portion and a side support portion. The main support portion extends horizontally, and the side support portion is located on the outer periphery of the main support portion and extends upward.

[0006] A coil assembly includes a first coil assembly and a second coil assembly. The first coil assembly is arranged horizontally on the supporting main body, and the second coil assembly is wound around one side of the side support and distributed vertically.

[0007] A magnet structure is disposed on the support structure and located below the coil assembly.

[0008] In one embodiment, the support structure includes a first support and a second support. The first support includes the supporting main body and a side support integrally formed on the periphery of the supporting main body. The second support is separately disposed from the first support and is fixedly connected to the first support on its lower side. The magnet structure is disposed on the second support and located on its lower side of the coil assembly; or,

[0009] The support structure includes a first support and a second support. The first support includes the side support portion. The second support is separately disposed from the first support and is disposed on the lower side of the first support and fixedly connected to the first support. The second support includes the support body portion. The side support portion is located on the periphery of the support body portion. The magnet structure is disposed on the second support and is located on the lower side of the coil assembly.

[0010] In one embodiment, the support mechanism includes a first support, the first support including the support body and a side support integrally disposed on the periphery of the support body, the magnet structure being disposed on the first support and located below the coil assembly.

[0011] In one embodiment, the side support portion is arranged in a ring shape; or

[0012] Multiple side support portions are provided, and adjacent side support portions are spaced apart.

[0013] In one embodiment, the supporting body includes a plurality of supporting ribs, which are spaced apart along a circumferential direction and extend radially along the circumference. The side support is connected to at least a portion of the outer ends of the supporting ribs, and the first coil assembly is arranged horizontally on the plurality of supporting ribs.

[0014] In one embodiment, the support structure further includes a magnet mounting portion located outside the side support portion. The magnet mounting portion is used to mount the magnet structure, and at least one end of the magnet mounting portion is spaced apart from the side support portion to define a limiting groove having an opening at one end.

[0015] In one embodiment, a first protrusion is provided on the outer side of the side support portion near the opening of the limiting groove, the first protrusion limiting the upper end of the second coil assembly; or,

[0016] The side support portion has two first protrusions on its outer side, which are spaced apart vertically. A winding groove is defined between the two first protrusions for the second coil assembly to be wound.

[0017] In one embodiment, a second protrusion is provided on the upper side of the support rib near its inner end, and the first coil assembly is wound around the outer side of the second protrusion.

[0018] In one embodiment, the support structure further includes a magnet mounting portion located outside the side support portion. The magnet mounting portion is used to mount the magnet structure, and at least one end of the magnet mounting portion is spaced apart from the side support portion to define a limiting groove having an opening at one end.

[0019] A first protrusion is provided on the outer side of the side support and near the opening of the limiting groove. The first protrusion limits the upper end of the second coil assembly.

[0020] A third protrusion is provided on the inner side of the magnet mounting part and near the opening of the limiting groove, and the lower end of the third protrusion abuts against the upper end of the first protrusion.

[0021] In one embodiment, the support structure further includes a magnet mounting portion located outside the side support portion. The magnet mounting portion is used to mount the magnet structure, and at least one end of the magnet mounting portion is spaced apart from the side support portion to define a limiting groove having an opening at one end.

[0022] A first protrusion is provided on the outer side of the side support and near the opening of the limiting groove, the first protrusion limiting the upper end of the second coil assembly; a third protrusion is provided on the inner side of the magnet mounting part and near the opening of the limiting groove, the third protrusion being separated from the first protrusion, the third protrusion limiting the upper end of the second coil assembly.

[0023] In one embodiment, an adhesive layer is provided in the limiting groove to fix the second coil assembly in the limiting groove.

[0024] This utility model also proposes a cooking utensil, comprising:

[0025] The main body includes a panel, and a heating area is provided on the outer side of the panel;

[0026] An electric heating device is disposed within the main body. The electric heating device is used to heat the cookware located in the heating area. The electric heating device includes at least two heating parts arranged in sections, and the two heating parts include a first heating part and a second heating part.

[0027] An electromagnetic heating device is disposed within the main body. The electromagnetic heating device includes a support structure, a coil assembly, and a magnet structure. The support structure includes a supporting main body and a side support. The supporting main body extends horizontally, and the side support is located on the outer periphery of the supporting main body and extends upward. The coil assembly includes a first coil assembly and a second coil assembly. The first coil assembly is horizontally disposed on the supporting main body, and the second coil assembly is wound around one side of the side support and distributed vertically. The magnet structure is disposed on the support structure and located below the coil assembly. The first coil assembly is disposed below the electric heating device, and its electromagnetic field can pass upward through the electric heating device to electromagnetically heat the cookware placed in the heating area. The second coil assembly is disposed around the periphery of the first coil assembly and the electric heating device, and at least upward to correspond to the heating area, so as to electromagnetically heat the cookware.

[0028] A control device is electrically connected to the electric heating device and the electromagnetic heating device, so as to at least control the two electric heating parts of the electric heating device to work independently, and control the first coil assembly and the second coil assembly to work.

[0029] In one embodiment, the first coil assembly is at least partially misaligned with at least one of the heating elements.

[0030] An electromagnetic heating device, comprising:

[0031] The support structure includes a main support portion and a side support portion. The main support portion extends horizontally, and the side support portion is located on the outer periphery of the main support portion and extends upward.

[0032] A coil assembly includes a first coil assembly and a second coil assembly. The first coil assembly is arranged horizontally on the supporting main body, and the second coil assembly is wound around one side of the side support and distributed vertically.

[0033] A magnet structure is disposed on the support structure and located below the coil assembly.

[0034] In the technical solution of this utility model, the upward extension of the side support portion provides support for the second coil assembly during winding, ensuring a stable structure and guaranteeing its stability and positional accuracy during operation. The horizontal arrangement of the first coil assembly allows for uniform heating of a specific area, and in conjunction with the first coil assembly, achieves more comprehensive electromagnetic heating. The magnet structure, located on the support structure and below the coil assembly, facilitates effective magnetic field transmission, improving magnetic field utilization efficiency and thus enhancing overall heating performance. Furthermore, the side support portion provides support for the second coil, reducing the manufacturing difficulty of the second coil assembly during winding. Attached Figure Description

[0035] 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.

[0036] Figure 1 A schematic diagram of an embodiment of the electromagnetic heating device provided by this utility model;

[0037] Figure 2for Figure 1 Side view of the electromagnetic heating device;

[0038] Figure 3 for Figure 1 Top view of the electromagnetic heating device;

[0039] Figure 4 for Figure 3 Cross-sectional view of the electromagnetic heating device at point AA;

[0040] Figure 5 for Figure 4 A magnified view of a section at point A in the middle;

[0041] Figure 6 for Figure 3 A three-dimensional sectional view of the electromagnetic heating device AA in the middle;

[0042] Figure 7 for Figure 6 A schematic diagram of the structure of the first support in the middle;

[0043] Figure 8 for Figure 7 A magnified view of a section at point B in the middle;

[0044] Figure 9 for Figure 1 Exploded view of the electromagnetic heating device;

[0045] Figure 10 A side view of another embodiment of the electromagnetic heating device provided by this utility model;

[0046] Figure 11 for Figure 10 Exploded view of the electromagnetic heating device;

[0047] Figure 12 for Figure 10 Side view of the electromagnetic heating device;

[0048] Figure 13 for Figure 10 Cross-sectional view of the electromagnetic heating device at point BB;

[0049] Figure 14 A schematic diagram of another embodiment of the electromagnetic heating device provided by this utility model;

[0050] Figure 15 for Figure 14 Top view of the electromagnetic heating device;

[0051] Figure 16 for Figure 14 Side view of the electromagnetic heating device;

[0052] Figure 17 for Figure 15 Cross-sectional view of the electromagnetic heating device at point CC;

[0053] Figure 18 for Figure 17 A partial enlarged view of point C in one embodiment of the electromagnetic heating device;

[0054] Figure 19 for Figure 17 A partial enlarged view at point C of another embodiment of the electromagnetic heating device;

[0055] Figure 20 for Figure 14 A magnified view of a section at point D;

[0056] Figure 21 for Figure 14 Exploded view of the electromagnetic heating device;

[0057] Figure 22 A schematic diagram of the structure of an embodiment of the cooking utensil provided by this utility model;

[0058] Figure 23 This is a schematic diagram of the electric heating element and electromagnetic heating device projected onto the panel in this utility model.

[0059] Explanation of icon numbers:

[0060] 100. Electromagnetic heating device; 200. Cooking utensils;

[0061] 1. Support structure; 11. Support body; 111. Support rib; 112. Second protrusion; 12. Side support; 121. First protrusion; 13. First support; 14. Support; 15. Magnet mounting part; 151. Third protrusion; 16. Limiting groove; 17. Winding groove; 18. Adhesive layer;

[0062] 2. Coil assembly; 21. First coil assembly; 22. Second coil assembly;

[0063] 3. Magnet structure;

[0064] 4. Main body; 41. Panel; 411. Heating area;

[0065] 5. Electric heating device; 51. First heating element; 52. Second heating element;

[0066] 6. Control device.

[0067] 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

[0068] 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 scope of protection of the present utility model.

[0069] 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.

[0070] 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.

[0071] In the prior art, the electromagnetic heating device includes a first coil assembly and a second coil assembly. The first coil assembly is wound on the same horizontal plane, while the second coil assembly is wound vertically stacked. It is difficult to share the same tight winding process with the first group of windings. Moreover, the horizontal plane of the coil is constantly changing during the winding process, and the adjacent coils are in a loose state, making it impossible to fix them neatly on the support in a short time, thereby increasing the difficulty of production.

[0072] To solve the above technical problems, such as Figure 1 , Figure 10 as well as Figure 14As shown, this utility model proposes an electromagnetic heating device 100, including a support structure 1, a coil assembly 2, and a magnet structure 3: the support structure 1 includes a supporting main body 11 and a side support 12, the supporting main body 11 extends horizontally, and the side support 12 is located on the outer periphery of the supporting main body 11 and extends upward; the coil assembly 2 includes a first coil assembly 21 and a second coil assembly 22, the first coil assembly 21 is arranged horizontally on the supporting main body 11, and the second coil assembly 22 is wound around one side of the side support 12 and distributed vertically; the magnet structure 3 is located on the support structure 1 and below the coil assembly 2.

[0073] In the technical solution of this utility model, the upward extension of the side support 12 provides support for the second coil assembly 22 during winding, ensuring a stable structure and guaranteeing its stability and positional accuracy during operation. The horizontal arrangement of the first coil assembly 21 allows for uniform heating of a specific area, and in conjunction with the first coil assembly 21, achieves more comprehensive electromagnetic heating. The magnet structure 3, located on the support structure 1 and below the coil assembly 2, facilitates effective magnetic field transmission, improves magnetic field utilization efficiency, and enhances overall heating performance. Thus, because the side support 12 provides support for the second coil, the manufacturing difficulty of the second coil assembly 22 during winding is reduced.

[0074] In one implementation, such as Figures 2 to 5 As shown, the support structure 1 includes a first support 13 and a second support 14. The first support 13 includes a supporting main body 11 and a side support 12 integrally formed on the periphery of the supporting main body 11. The second support 14 is separately disposed from the first support 13 and is fixedly connected to the first support 13 on its lower side. The magnet structure 3 is disposed on the second support 14 and located on the lower side of the coil assembly 2. This separate arrangement of the first support 13 and the second support 14 allows the first coil assembly 21 to be mounted on the supporting main body 11 of the second support 14, the second coil assembly 22 to be mounted on the side support 12 of the first support 13, and the magnet structure 3 to be mounted on the second support 14. This makes the manufacture and replacement of the electromagnetic heating device 100 more flexible and facilitates the assembly and disassembly of the overall structure.

[0075] In another embodiment, such as Figures 11 to 13As shown, the support structure 1 includes a first support 13 and a second support 14. The first support 13 includes the side support portion 12. The second support 14 is separately disposed from the first support 13 and is fixedly connected to the first support 13 on its lower side. The second support 14 includes the supporting main body portion 11. The side support portion 12 is located on the periphery of the supporting main body portion 11. The magnet structure 3 is disposed on the second support 14 and is located on the lower side of the coil assembly 2. Figure 9 As shown, with the separate arrangement of the first bracket 13 and the second bracket 14, the first coil assembly 21 can be installed on the support body 11 of the first bracket 13, while the second coil assembly 22 can be installed on the side support 12 of the first bracket 13, and the magnet structure 3 can be installed on the second bracket 14. This makes the manufacture and replacement of the electromagnetic heating device 100 more flexible and facilitates the assembly and disassembly of the overall structure.

[0076] In yet another implementation, such as Figures 14 to 16 As shown, the support mechanism includes a first support 13, which includes the supporting main body 11 and a side support 12 integrally disposed on the periphery of the supporting main body 11. The magnet structure 3 is disposed on the first support 13 and located below the coil assembly 2. Figure 21 As shown, with this configuration, the first coil assembly 21 can be installed on the support body 11 of the first bracket 13, the second coil assembly 22 can be installed on the side support 12 of the first bracket 13, and the magnet structure 3 can be installed on the first bracket 13, making the overall structure more compact, reducing the complex connections between components, and improving the stability and service life of the device.

[0077] It is understandable that, such as Figures 6 to 8 As shown, the side support portion 12 can be configured in various shapes, such as rings, rectangles, triangles, ellipses, and other geometric shapes, or even more complex curves or combinations thereof, to meet different structural support and functional requirements. Specifically, in one embodiment, the side support portion 12 is arranged in a ring shape. Thus, the ring-shaped side support portion 12 can evenly distribute the force across the entire side support portion 12, reducing local stress concentration and improving the stability of the side support portion 12.

[0078] In addition, such as Figures 11 to 13As shown, in another embodiment, multiple side support portions 12 are provided, with adjacent side support portions 12 spaced apart. This arrangement allows for more uniform support force through the multiple side support portions 12, enhancing the stability of the overall structure. Compared to a ring-shaped arrangement of side support portions 12, the spaced-apart side support portions 12 reduce the weight of the first bracket 13, making the electromagnetic heating device 100 lighter and more portable.

[0079] Furthermore, in one embodiment, the supporting main body 11 includes a plurality of supporting ribs 111, which are spaced apart along a circumferential direction and extend radially along the circumference. The side support 12 is connected to at least a portion of the outer ends of the supporting ribs 111, and the first coil assembly 21 is arranged horizontally on the plurality of supporting ribs 111. Thus, the supporting ribs 111 can connect the side support 12 to the supporting main body 11, providing additional lateral support force to the side support 12, reducing local stress concentration, and enhancing the overall stability of the structure. It should be noted that the supporting ribs 111 can be connected to the side support 12 in various ways, such as by snap-fitting and bonding. To improve manufacturing convenience, in one embodiment, the side support 12 and the supporting ribs 111 can be integrally formed. This not only improves the connection strength between the side support 12 and the supporting ribs 111 but also makes manufacturing more convenient.

[0080] It is understood that the first coil assembly 21 in this utility model can be disposed on the first support 13 or the second support 14, depending on the actual setting requirements. For example, when the side support portion 12 is arranged in a ring shape, disposing of the first coil assembly 21 on the support body portion 11 of the second support 14 is beneficial to increasing the speed at which the side support portion 12 on the first support 13 winds the first coil assembly 21, thereby improving production efficiency. When there are multiple side support portions 12, disposing of the first coil assembly 21 on the support body portion 11 of the first support 13, and disposing of multiple first coil assemblies 21 on the support ribs 111, can improve the utilization rate of the support ribs 111, making the overall structure more compact.

[0081] It is understood that the magnet structure 3 can be connected to the support structure 1 in various ways, such as bonding, bolting, or snap-fit ​​connection, to ensure the stability of the magnet structure 3. The specific connection method can be selected according to actual needs to optimize overall structural performance and manufacturing efficiency. Therefore, for example... Figures 17 to 19As shown, in one embodiment, the support structure 1 further includes a magnet mounting portion 15, which is located outside the side support portion 12. The magnet mounting portion 15 is used to mount the magnet structure 3, and at least one end of the magnet mounting portion 15 is spaced apart from the side support portion 12 to define a limiting groove 16 with an open end. This configuration, using the magnet mounting portion 15 to mount the magnet structure 3, better ensures the positional accuracy and stability of the magnet structure 3 during operation, reducing the impact on overall performance caused by the shaking or movement of the magnet structure 3. Furthermore, since the magnet mounting portion 15 and the side support portion 12 form the limiting groove 16 with an open end, it facilitates the installation of the second coil assembly 22 while ensuring that the second coil assembly 22 is fixed within the limiting groove 16, reducing displacement caused by vibration and improving the stability and reliability of the overall device. It should be noted that the magnet mounting part 15 can be mounted on the first bracket 13 or on the second bracket 14. The specific choice can be made flexibly according to the actual application scenario and structural requirements to maximize space utilization and improve installation convenience.

[0082] It is understood that the purpose of the limiting groove 16 is to facilitate the installation of the second coil assembly 22. However, the opening of the limiting groove 16 may cause the second coil assembly 22 to shift. Therefore, in one embodiment, a first protrusion 121 is provided on the outer side of the side support portion 12 near the opening of the limiting groove 16. The first protrusion 121 limits the upper end of the second coil assembly 22. With this configuration, the first protrusion 121 can block the second coil assembly 22 wound on the side support portion 12, preventing the second coil assembly 2232 wound on the side support portion 12 from falling off, thus improving the stability of the connection between the second coil assembly 22 and the side support portion 12.

[0083] In addition, such as Figure 5 As shown, in another embodiment, the side support portion 12 has two first protrusions 121 spaced apart vertically on its outer side, defining a winding groove 17 between the two first protrusions 121 for the second coil assembly 22 to be wound. This arrangement defines the winding area of ​​the second coil assembly 22 through the winding groove 17, allowing the second coil assembly 22 to be wound orderly within the winding groove 17. This results in a more compact winding of the second coil assembly 22, reducing displacement problems caused by loose winding of the second coil assembly 22.

[0084] Understandably, to improve the stability of the first coil assembly 21 positioned on the support rib 111, in one embodiment, a second protrusion 112 protrudes from the upper side of the support rib 111 near its inner end, and the first coil assembly 21 is wound around the outer side of the second protrusion 112. This arrangement, through the extension of the second protrusion 112, provides a limiting effect on the first coil assembly 21, offering additional support and making its position on the support rib 111 more stable, preventing lateral displacement on the support rib 111.

[0085] It is understood that when the support structure 1 is configured separately using the first support 13 and the second support 14, the first support 13 and the second support 14 can be connected by adhesive or bolts. This simplifies the manufacturing process of the support structure 1. Furthermore, in one embodiment, the support structure 1 also includes a magnet mounting portion 15, located outside the side support portion 12. The magnet mounting portion 15 is used to mount the magnet structure 3, and at least one end of the magnet mounting portion 15 is spaced from the side support portion 12 to define a limiting groove 16 with an open end. A first protrusion 121 protrudes from the outer side of the side support portion 12 near the opening of the limiting groove 16, limiting the upper end of the second coil assembly 22. A third protrusion 151 protrudes from the inner side of the magnet mounting portion 15 near the opening of the limiting groove 16, with the lower end of the third protrusion 151 abutting against the upper end of the first protrusion 121. This configuration allows the third protrusion 151 of the magnet mounting portion 15 on the second bracket 14 to be engaged with the limiting groove 16 after the second coil assembly 22 is wound around the side support portion 12 on the first bracket 13. The third protrusion 151 abuts against the first protrusion 121, ensuring the second coil assembly 22 is securely fixed within the limiting groove 16. This reduces displacement caused by vibration or external forces, further enhancing the stability and reliability of the overall structure. Furthermore, it eliminates the need for additional fixing devices, simplifying the assembly process and reducing manufacturing costs.

[0086] It is understandable that when the bracket structure 1 adopts the first bracket 13, in order not to affect the second coil assembly 22 being wound around the side support portion 12 on the first bracket 13 through the limiting groove 16. In one embodiment, the support structure 1 further includes a magnet mounting portion 15, which is located outside the side support portion 12. The magnet mounting portion 15 is used to mount the magnet structure 3, and at least one end of the magnet mounting portion 15 is spaced apart from the side support portion 12 to define a limiting groove 16 with one end open. A first protrusion 121 is provided on the outer side of the side support portion 12 near the opening of the limiting groove 16, and the first protrusion 121 limits the upper end of the second coil assembly 22. A third protrusion 151 is provided on the inner side of the magnet mounting portion 15 near the opening of the limiting groove 16, and the third protrusion 151 is spaced apart from the first protrusion 121, and the third protrusion 151 limits the upper end of the second coil assembly 22. This configuration, through the first protrusion 121 and the third protrusion 151, reduces the width of the opening of the limiting groove 16, thereby limiting the movement range of the second coil assembly 22 and ensuring that it will not deviate from its predetermined position due to external interference during operation, thus improving the overall operating accuracy and safety of the device. It is worth noting that the first protrusion 121 and the third protrusion 151 can be installed after the second coil assembly 22 is wound around the side support 12, thereby reducing the winding difficulty caused by the reduced width of the opening of the limiting groove 16 and ensuring the convenience and efficiency of the installation process.

[0087] Furthermore, to further enhance the structural stability of the second coil assembly 22 within the limiting groove 16, such as... Figure 19 As shown, in one embodiment, an adhesive layer 18 is provided within the limiting groove 16 to fix the second coil assembly 22 within the limiting groove 16. Thus, the adhesive layer 18 provides additional adhesive force, tightly fixing the second coil assembly 22 within the limiting groove 16, reducing the risk of loosening, displacement, or shaking due to external vibration, impact, or other external forces during use. This fixing effect effectively reduces relative movement between the second coil assembly 22 and the limiting groove 16, thereby ensuring its positional accuracy and performance stability during operation.

[0088] In one embodiment, the first coil assembly 21 and the second coil assembly 22 are electrically connected. This configuration allows the first coil assembly 21 and the second coil assembly 22 to be simultaneously or individually controlled by an external power source or signal, thereby altering the magnetic fields generated on the first coil assembly 21 and the second coil assembly 22 and adjusting their heating modes. Further, in one embodiment, the first coil assembly 21 and the second coil assembly 22 are riveted and connected in series. This riveting technique not only makes the connection between the first coil assembly 21 and the second coil assembly 22 more stable and reliable but also effectively reduces the potential risk of failure due to vibration or other mechanical stress. The series connection allows current to flow sequentially through the first coil assembly 21 and the second coil assembly 22, which creates a mutually reinforcing magnetic field effect, thereby improving overall heating efficiency. Furthermore, the series structure simplifies circuit design and reduces manufacturing costs.

[0089] like Figure 22As shown, this utility model also proposes a cooking appliance 200, which includes the electromagnetic heating device 100. The specific structure of the electromagnetic heating device 100 is as described in the above embodiments. Since this cooking appliance 200 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The cooking appliance 200 includes a main body 4, an electric heating device 5, an electromagnetic heating device 100, and a control device 6. The main body 4 includes a panel 41, and a heating area 411 is provided on the outer side of the panel 41. The electric heating device 5 is disposed within the main body 4 and is used to heat the pot placed in the heating area 411. The electric heating device 5 includes at least two heating parts arranged in sections, including a first heating part 51 and a second heating part 52. The electromagnetic heating device 100 is disposed within the main body 4 and includes a support structure 1. The bracket structure 1 includes a coil assembly 2 and a magnet structure 3. The bracket structure 1 includes a supporting main body 11 and a side support 12. The supporting main body 11 extends horizontally, and the side support 12 is located on the outer periphery of the supporting main body 11 and extends upward. The coil assembly 2 includes a first coil assembly 21 and a second coil assembly 22. The first coil assembly 21 is arranged horizontally on the supporting main body 11, and the second coil assembly 22 is wound around one side of the side support 12 and distributed vertically. The magnet structure 3 is located on the bracket structure 1 and is located below the coil assembly 2. The first coil assembly 21 is disposed on the lower side of the electric heating device 5. The electromagnetic field of the first coil assembly 21 can pass upward through the electric heating device 5 to electromagnetically heat the cookware placed in the heating area 411. The second coil assembly 22 is disposed around the first coil assembly 21 and the electric heating device 5, and is arranged upward to correspond to the heating area 411 to electromagnetically heat the cookware. The control device 6 is electrically connected to the electric heating device 5 and the electromagnetic heating device 100 to control the two electric heating parts of the electric heating device 5 to work independently, and to control the first coil assembly 21 and the second coil assembly 22 to work.

[0090] In the above-described technical solution, to ensure the heating performance of the electric heating device 5, the electric heating device 5 is positioned close to the heating area 411 of the panel 41, so that the two electric heating elements are close to the heating area 411. When the cooking appliance 200 needs to switch to a mixed heating mode to perform mixed heating on the heating area 411 on the panel 41, the control device 6 controls the first coil assembly 21 to be energized. The first coil assembly 21 operates and generates an electromagnetic field. The electromagnetic field generated by the first coil assembly 21 can pass upward through the electric heating device 5 to couple with the pot at the heating area 411, providing electromagnetic heating to the heating area 411. At the same time, the control device 6 controls one of the two electric heating elements to work independently. This allows some or all of the electric heating elements to reduce their power or stop working when the cooking appliance 200 overheats, thereby reducing the impact of the temperature of the electric heating device 5 on the first coil assembly 21. This allows for flexible adjustment of the ratio of electromagnetic heating and electric heating according to different cooking needs, achieving more precise temperature control and heating effect.

[0091] like Figure 23 As shown, in one embodiment, the first coil assembly 21 is at least partially offset from at least one of the heating elements. With this offset arrangement, only a portion of the heat generated by the heating element during operation can be conducted to the surface of the first coil assembly 21. This reduces the impact of the heating device 5 on the temperature rise of the first coil assembly 21, thereby mitigating the overheating problem caused by the heat transferred downwards by the heating device 5 combined with the heat generated by the first coil assembly 21 itself. This reduces the probability of damage to the insulation layer of the first coil assembly 21, protecting it from damage while simultaneously increasing the heating power of the cooking appliance 200.

[0092] 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. An electromagnetic heating device, characterized by, Comprise: A support structure, comprising a support main body part and a side support part, the support main body part is arranged along the horizontal direction, the side support part is arranged at the outer periphery of the support main body part and extends upward; A coil assembly, comprising a first coil assembly and a second coil assembly, the first coil assembly is arranged along the horizontal direction on the support main body part, and the second coil assembly is arranged around one side of the side support part and is distributed along the up-down direction; and A magnet structure is arranged on the support structure and located below the coil assembly.

2. The electromagnetic heating device of claim 1, wherein, The support structure comprises a first support and a second support, the first support comprises the support main body part and the side support part arranged on the periphery of the support main body part, the second support is arranged separately from the first support and is fixedly connected to the lower side of the first support, the magnet structure is arranged on the second support and located below the coil assembly; or The support structure comprises a first support and a second support, the first support comprises the side support part, the second support is arranged separately from the first support and is fixedly connected to the lower side of the first support, the second support comprises the support main body part, the side support part is located on the periphery of the support main body part, and the magnet structure is arranged on the second support and located below the coil assembly.

3. The electromagnetic heating device of claim 1, wherein, The support structure comprises a first support, the first support comprises the support main body part and the side support part arranged on the periphery of the support main body part, and the magnet structure is arranged on the first support and located below the coil assembly.

4. The electromagnetic heating device of any one of claims 1 to 3, wherein, The side support part is arranged in a ring shape; or The side support part is arranged in a plurality of parts, and the adjacent side support parts are arranged with a spacing therebetween.

5. The electromagnetic heating device of any one of claims 1 to 3, wherein, The support main body part comprises a plurality of support ribs, the plurality of support ribs are distributed with a spacing along a circumferential direction and extend along the radial direction of the circumference, the side support part is connected to the outer end of at least part of the support ribs, and the first coil assembly is arranged along the horizontal direction on the plurality of support ribs.

6. The electromagnetic heating device of any one of claims 1 to 3, wherein, The support structure further comprises a magnet mounting part, the magnet mounting part is located on the outer side of the side support part, the magnet mounting part is used to mount the magnet structure, and at least one end of the magnet mounting part is spaced from the side support part to define a limiting slot with one end opening.

7. The electromagnetic heating device of claim 6, wherein, A first protrusion is protruded on the outer side of the side support part and close to the opening of the limiting slot, the first protrusion limits the upper end of the second coil assembly; or The outer side of the side support part is provided with two first protrusions arranged with a spacing therebetween, a winding slot is defined between the two first protrusions for winding the second coil assembly.

8. The electromagnetic heating device of claim 4, wherein, A second protrusion is protruded on the upper side of the support rib and close to the inner end, and the first coil assembly is wound on the outer side of the second protrusion.

9. The electromagnetic heating device of claim 2, wherein, The support structure further comprises a magnet mounting part, the magnet mounting part is located on the outer side of the side support part, the magnet mounting part is used to mount the magnet structure, and at least one end of the magnet mounting part is spaced from the side support part to define a limiting slot with one end opening; A first protrusion is protruded on the outer side of the side support part and close to the opening of the limiting slot, and the first protrusion limits the upper end of the second coil assembly. A third protrusion is protruded on the inner side of the magnet mounting part and close to the opening of the limiting slot, and the lower end of the third protrusion abuts against the upper end of the first protrusion.

10. The electromagnetic heating device of claim 3, wherein, The bracket structure further comprises a magnet mounting part, which is located on the outer side of the side support part, is used to mount the magnet structure, and is spaced from the side support part at least at one end to define a limiting slot with an open end. A first protrusion is protruded on the outer side of the side support part and close to the opening of the limiting slot, and the first protrusion limits the upper end of the second coil assembly.

11. The electromagnetic heating device of claim 6, wherein, A third protrusion is protruded on the inner side of the magnet mounting part and close to the opening of the limiting slot, and the third protrusion is spaced from the first protrusion and limits the upper end of the second coil assembly.

12. A cooking appliance characterized by, An adhesive layer is arranged in the limiting slot to fix the second coil assembly in the limiting slot. Comprise: A main body comprising a panel, and an outer side of the panel is provided with a heating area; An electric heating device arranged in the main body, and the electric heating device is used to heat a pot on the heating area, and the electric heating device comprises at least two heating parts arranged in zones, and the two heating parts comprise a first heating part and a second heating part; An electromagnetic heating device arranged in the main body, and the electromagnetic heating device is the electromagnetic heating device according to any one of claims 1 to 11, the first coil assembly is arranged on the lower side of the electric heating device, and the electromagnetic field of the first coil assembly can penetrate the electric heating device upwards to electromagnetically heat the pot on the heating area, the second coil assembly is arranged corresponding to the periphery of the first coil assembly and the electric heating device, and at least it is arranged upwards corresponding to the heating area to be able to electromagnetically heat the pot; 13. A cooking appliance as claimed in claim 12, characterised in that, A control device, and the control device is electrically connected with the electric heating device and the electromagnetic heating device to at least control the two electric heating parts of the electric heating device to work independently, and control the first coil assembly and the second coil assembly to work. The first coil assembly and at least one of the heating parts are arranged at least partially in dislocation.

Images