Cooking utensil
By combining independently zoned electric heating and electromagnetic heating devices with a fan cooling system, the problem of coil temperature rise is solved, achieving efficient heat dissipation and improved safety, reducing overall machine cost, and enhancing the flexibility of temperature control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-04-24
AI Technical Summary
In existing cooking appliances that use a combination of electromagnetic and electric heating, the temperature of the coil is prone to rise, which can damage the insulation layer, lead to insufficient heat dissipation, and affect the normal operation of electronic components.
It adopts independently zoned electric heating devices and electromagnetic heating devices, combined with a fan cooling system. By independently controlling the heating element and coil assembly, the fan blows air downwards to cool the coil, reducing heat radiation. The heating element and coil assembly are set in parallel for independent control.
It improves the safety and lifespan of cooking appliances, reduces the overall cost, enhances the operating range of temperature control, and improves heating efficiency and safety.
Smart Images
Figure CN224164915U_ABST
Abstract
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 electric heating (such as infrared heating devices) have the following problems: Because the electromagnetic coil is located directly below the infrared heating plate, the heat from the infrared heating plate during operation is conducted to the surface of the coil, causing the coil temperature to rise; moreover, the coil itself generates heat during electromagnetic heating, leading to a temperature increase; when higher heating power is required within a certain period, the coil temperature rises sharply, causing damage to the coil insulation layer and even burnout; furthermore, during high-power heating, insufficient heat dissipation within the appliance can easily lead to overheating, affecting the normal operation of internal electronic components. Utility Model Content
[0003] The main purpose of this invention is to provide a cooking appliance that efficiently dissipates heat from the coil of an electromagnetic heating device.
[0004] To achieve the above objectives, the cooking utensil proposed in this utility model includes:
[0005] The main body includes a panel, and a heating area is provided on the upper side of the panel;
[0006] An electric heating device is disposed within the main body and corresponding to the heating area for heating a pot placed in the heating area. The electric heating device includes at least two heating elements that are independently partitioned, and the two heating elements include a first heating element and a second heating element.
[0007] An electromagnetic heating device is disposed within the main body. The electromagnetic heating device includes a first coil assembly, which is disposed below the electric heating device. The electromagnetic field of the first coil assembly can pass upward through the electric heating device to electromagnetically heat the cookware placed in the heating area.
[0008] At least one fan, at least partially located below the electromagnetic heating device, is configured to blow air downwards to cool the electromagnetic heating device; and,
[0009] An electrical control device is electrically connected to the electric heating device, the electromagnetic heating device, and the fan, and can independently control the operation of the first heating element and the second heating element.
[0010] In one embodiment, the electric heating device includes an infrared heating device.
[0011] In one embodiment, the second heating element is arranged in a ring shape and located around the first heating element; and / or,
[0012] The first heating element and the second heating element are arranged in parallel so that they can be independently controlled by the electronic control device.
[0013] In one embodiment, the first coil assembly is at least partially offset from at least one of the heating elements.
[0014] In one embodiment, the electromagnetic heating device further includes a second coil assembly located around the first coil assembly.
[0015] In one embodiment, the second coil assembly is arranged in a ring around the periphery of the first coil assembly, and includes multiple turns of coil arranged in layers along the vertical direction.
[0016] In one embodiment, the electronic control device is capable of independently controlling the operation of the first coil assembly and the second coil assembly; and / or,
[0017] The first coil assembly and the second coil assembly are arranged in parallel so that they can be independently controlled by the electronic control device.
[0018] In one embodiment, the air outlet of the fan is arranged upward so as to blow air upward to cool the lower side of the electromagnetic heating device.
[0019] In one embodiment, at least two fans are provided, including a first fan and a second fan. The air outlets of the first fan and / or the second fan are arranged upward and are at least partially located below the electromagnetic heating device so as to blow air upward and onto the electromagnetic heating device for cooling.
[0020] In one embodiment, in the projection onto the horizontal plane, at least one of the fans is completely within the projection of the electromagnetic heating device; or,
[0021] In the projection onto the horizontal plane, at least one portion of the fan is located within the projection of the electromagnetic heating device.
[0022] In one embodiment, the electromagnetic heating device further includes a second coil assembly located around the periphery of the first coil assembly. The second coil assembly is arranged in a ring and surrounds the periphery of the first coil assembly. The second coil extends upward beyond the first coil assembly and includes multiple turns of coil arranged in layers along the vertical direction. The first fan is at least partially located on the lower side of the electromagnetic heating device so as to blow air to the lower side of the electromagnetic heating device for cooling.
[0023] The main body is internally provided with a flow divider plate corresponding to the second fan. The flow divider plate extends horizontally, with one end extending toward the second fan and a portion extending toward the second coil, so as to guide the airflow of the second fan to the second coil.
[0024] The technical solution of this utility model employs at least one fan installed inside the main body, with the fan's air outlet facing upwards and at least partially located below the electromagnetic heating device. This allows for upward and downward airflow cooling the electromagnetic heating device, preventing the coil from burning out due to high temperatures, thereby improving the safety and lifespan of the cooking appliance. It is understood that the electric heating device includes a first heating element and a second heating element. The electronic control device is electrically connected to the electric heating device and can independently control the operation of the first and second heating elements. This arrangement allows the first or second heating element to be shut off as needed when the internal temperature of the main body becomes too high, reducing downward heat radiation from the electric heating device and protecting the electromagnetic heating device from damage due to excessive temperature. Attached Figure Description
[0025] 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.
[0026] Figure 1 An exploded structural diagram of an embodiment of the cooking appliance provided by this utility model;
[0027] Figure 2 The projections of the electric heating device and the electromagnetic heating device onto the horizontal plane;
[0028] Figure 3 A top-view wind direction diagram of an embodiment of the cooking appliance provided by this utility model;
[0029] Figure 4 A front-view wind direction diagram of an embodiment of the cooking appliance provided by this utility model;
[0030] Figure 5 A side view of the wind direction of an embodiment of the cooking appliance provided by this utility model;
[0031] Figure 6 for Figure 3 A top-down view of the wind direction of the first wind turbine in the middle;
[0032] Figure 7 for Figure 3 A top-down view of the wind direction of the second wind turbine in the middle;
[0033] Figure 8 This is a schematic diagram of the flow divider structure;
[0034] Figure 9 for Figure 8 A magnified view of a portion at point A;
[0035] Figure 10 A schematic diagram of another embodiment of the cooking appliance provided by this utility model;
[0036] Figure 11 A schematic diagram of another embodiment of the cooking utensil provided by this utility model;
[0037] Figure 12 A schematic diagram of another embodiment of the cooking utensil provided by this utility model.
[0038] Explanation of icon numbers:
[0039] 100. Cooking appliance; 1. Main body; 11. Panel; 111. Heating area; 12. Diverter plate; 2. Electric heating device; 21. First heating element; 22. Second heating element; 23. Infrared heating device; 3. Electromagnetic heating device; 31. First coil assembly; 32. Second coil assembly; 321. Coil; 4. Fan; 41. First fan; 42. Second fan; 5. Electrical control device.
[0040] 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
[0041] 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.
[0042] 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.
[0043] 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.
[0044] Existing cooking appliances that combine electromagnetic and electric heating (such as infrared heating devices) have the following problems: Because the electromagnetic coil is located directly below the infrared heating plate, the heat from the infrared heating plate during operation is conducted to the surface of the coil, causing the coil temperature to rise; moreover, the coil itself generates heat during electromagnetic heating, leading to a temperature increase; when higher heating power is required within a certain period, the coil temperature rises sharply, causing damage to the coil insulation layer and even burnout; furthermore, during high-power heating, insufficient heat dissipation within the appliance can easily lead to overheating, affecting the normal operation of internal electronic components.
[0045] To address the aforementioned problems, this utility model proposes a cooking appliance that provides efficient heat dissipation from the coil of an electromagnetic heating device. Figures 1 to 12 The diagram shows the structure of several embodiments of the cooking appliance provided by this utility model.
[0046] Please refer to Figures 1 to 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, at least one fan 4, and an electronic control device 5; the main body 1 includes a panel 11, and a heating area 111 is provided on the upper side of the panel 11; the electric heating device 2 is disposed inside the main body 1 and is disposed corresponding to the heating area 111 for heating the pot placed in the heating area 111, and the electric heating device 2 includes at least two heating parts that are independently partitioned, the two heating parts including a first heating part 21 and a second heating part 22; the electromagnetic heating device 3 is disposed inside the main body 1. The electromagnetic heating device 3 includes a first coil assembly 31, which is 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 cookware placed in the heating area 111. It is located at least partially below the electromagnetic heating device 3 so that it can blow air to cool the lower side of the electromagnetic heating device 3. The electronic control device 5 is electrically connected to the electric heating device 2, the electromagnetic heating device 3 and the fan 4, and can independently control the operation of the first heating part 21 and the second heating part 22.
[0047] The technical solution of this utility model employs at least one fan 4 disposed inside the main body 1, at least partially located below the electromagnetic heating device 3, to blow air upwards and onto the electromagnetic heating device 3 for cooling, preventing the coil 321 from burning out due to high temperature, thereby improving the safety and lifespan of the cooking appliance 100. It is understood that the electric heating device 2 includes a first heating element 21 and a second heating element 22. The electronic control device 5 is electrically connected to the electric heating device 2 and can independently control the operation of the first heating element 21 and the second heating element 22. This arrangement allows the first heating element 21 or the second heating element 22 to be shut off as needed when the internal temperature of the main body 1 is too high, reducing downward heat radiation from the electric heating device 2 and thus protecting the electromagnetic heating device 3 from damage due to excessive temperature.
[0048] Further, please refer to Figure 1 The electric heating device 2 includes an infrared heating device 23. It is understood that there are three specific modes of heat conduction: heat conduction, heat convection, and heat radiation.
[0049] Thermal radiation is the process by which non-contact objects transfer energy through electromagnetic waves. Since thermal radiation does not require any medium and has high heat transfer efficiency and low heat loss, the heated object is heated quickly with low energy consumption and high economic cost. Therefore, the electric heating device 2 includes the infrared heating device 23. Through the thermal radiation of the infrared heating device 23, the cooking appliance 100 can quickly heat the pot and pan with low power consumption and higher economic cost, making the cooking appliance 100 more economical.
[0050] In addition, please refer to Figure 1 and Figure 2 The second heating element 22 is arranged in a ring shape and is located around the first heating element 21. It is understood that the horizontal cross-section of the pot, that is, the cross-section of the pot wall, is ring-shaped. Therefore, in order to better heat the pot wall, the second heating element 22 is arranged in a ring shape and is located around the first heating element 21. This arrangement makes the heat radiation direction of the second heating element 22 more consistent with the shape of the pot wall, thus further enhancing the heating of the pot wall. Combined with the heating of the pot bottom by the first heating element 21 and the first electromagnetic component, the cooking utensil 100 enhances the wok hei (wok aroma) during cooking, while also fully bringing out the flavor and nutrients of the ingredients.
[0051] Furthermore, the first heating element 21 and the second heating element 22 are arranged in parallel so that they can be independently controlled by the electronic control device 5. It is understood that during cooking, different ingredients have corresponding requirements for heat control at different stages of cooking; heat control is essentially temperature control. In some embodiments, the first heating element 21 and the second heating element 22 are connected in series, resulting in either simultaneous operation or simultaneous shutdown of both heating elements. This arrangement leaves little room for maneuver in temperature control during cooking. Alternatively, to achieve independent control of the first heating element 21 and the second heating element 22 under series connection, an additional circuit needs to be connected in parallel to one of the heating elements. This makes the overall circuit design redundant and complex, increases the overall cost of the machine, and reduces its economic efficiency.
[0052] Therefore, in this embodiment, the first heating element 21 and the second heating element 22 are arranged in parallel, thereby enabling the electronic control device 5 to independently control the first heating element 21 and the second heating element 22 respectively. Thus, within the operating space where the first heating element 21 and the second heating element 22 work or stop working simultaneously, it is also possible to perform operations where the first heating element 21 works while the second heating element 22 stops working, or vice versa. Thus, without adding additional circuitry, the electronic control device 5 can independently control the first heating element 21 and the second heating element 22 respectively, reducing the overall cost of the machine and improving its economy. At the same time, the cooking appliance 100 can independently control the first heating element 21 and the second heating element 22 according to the user's needs during cooking, thereby satisfying the user's temperature control requirements and making the cooked food more flavorful.
[0053] It is understandable that the electromagnetic heating device 3 and the electric heating device 2 can also be connected in parallel. This allows for the selection of a suitable heating method based on the material of the cookware, or according to the user's preferences and cooking needs. Such a configuration also provides more operational flexibility in temperature control during cooking and offers better applicability.
[0054] Furthermore, the first coil assembly 31 is at least partially offset from at least one of the heating elements. It is understood that the electric heating device 2 uses the heat effect generated by current flowing through a metal resistor to radiate heat into the cookware, while the first coil assembly 31 of the electromagnetic heating device 3 is located below the electric heating device 2. In some cases, a hybrid heating mode is used to obtain sufficiently high heating power. In this mode, the electric heating device 2 and the electromagnetic heating device 3 operate simultaneously. After prolonged operation, the electric heating device 2 causes the temperature of the coil 321 of the electromagnetic heating device 3 to rise sharply, leading to damage to the insulation layer of the coil 321, and eventually burnout, affecting the safe use of the cooking appliance 100. Additionally, when the electric heating device 2 is operating, its heat is conducted to the coil 321, increasing its temperature and resistance, thus reducing its eddy current induction capability. This also affects the heating effect of the electromagnetic heating device 3 on the metal cookware.
[0055] Therefore, in this embodiment, the first coil assembly 31 is located below the first heating element 21 and is at least partially offset from the first heating element 21 or the second heating element 22. Thus, when the temperature of the electromagnetic heating device 3 is too high, it can be detected by a temperature sensor, or the temperature of the electromagnetic heating device 3 can be indirectly determined by timing the mixed heating mode and the working time. Part of the heating element can be turned off, while the heating element offset from the first coil assembly 31 can be turned on. In this way, on the one hand, the mixed heating mode can be maintained to avoid a significant drop in processing power, and on the other hand, the influence of the electric heating device 2 on the first coil assembly 31 of the electromagnetic heating device 3 can be reduced, which provides a certain degree of protection for the coil 321 of the electromagnetic heating device 3, thereby improving the reliability and safety of the cooking appliance 100.
[0056] In addition, please refer to Figure 1 and Figure 2 The electromagnetic heating device 3 further includes a second coil assembly 32 located around the first coil assembly 31. It is understood that when the cookware is not made of metal, heating the cookware requires thermal radiation from the electric heating device 2. When the cookware is made of metal, the heat radiation from the electric heating device 2 can heat the pot wall while the electromagnetic heating device 3 uses eddy current induction to heat the metal. However, the arrangement of the first coil assembly 31 in the electromagnetic heating device 3 is insufficient for the pot wall, resulting in poor eddy current heating. Therefore, the electromagnetic heating device 3 also includes a second coil assembly 32, which is positioned around both the first coil assembly 31 and the electric heating device 2. Specifically, the second coil assembly 32 is designed for the pot wall of metal cookware to induce eddy current induction and heat the pot wall. Combined with the second heating element 22, this results in faster heating of the metal pot wall, further improving cooking efficiency.
[0057] Further, please refer to Figure 1 and Figure 2 The second coil assembly 32 is arranged in a ring around the first coil assembly 31 and includes multiple turns of coil 321 arranged in layers along the vertical direction. It is understood that the pot wall extends along the thickness direction of the main body 1 and has a ring-shaped horizontal cross-section. Therefore, in order to better induce electromagnetic induction in the pot wall of the metal pot for heating, the second coil assembly 32 is arranged in a ring and includes multiple turns of coil 321 arranged in layers along the vertical direction. This effectively helps the pot wall of the metal pot to self-heat due to eddy current induction in the vertical direction, further improving the heating efficiency of the cooking appliance 100.
[0058] Furthermore, the electronic control device 5 can independently control the operation of the first coil assembly 31 and the second coil assembly 32; and / or, the first coil assembly 31 and the second coil assembly 32 are arranged in parallel so that they can be independently controlled by the electronic control device 5.
[0059] It is understandable that different ingredients require different cooking times at different stages of cooking, which is essentially temperature control. In some embodiments, the first coil assembly 31 and the second coil assembly 32 are connected in series or by other special circuit designs, which means that either the first coil assembly 31 and the second coil assembly 32 work simultaneously or stop working simultaneously. This setting leaves little room for temperature control during cooking. Alternatively, in order to achieve independent control of the first coil assembly 31 and the second coil assembly 32 under series connection, an additional circuit needs to be connected in parallel to one of the coil assemblies. This makes the overall circuit design redundant and complex, increases the cost of the whole machine, and reduces its economic efficiency.
[0060] Therefore, in this embodiment, the first coil assembly 31 and the second coil assembly 32 are arranged in parallel, thereby enabling the electronic control device 5 to independently control the first coil assembly 31 and the second coil assembly 32 respectively. Thus, within the operating space where the first coil assembly 31 and the second coil assembly 32 work simultaneously or stop working simultaneously, it is also possible to perform operations where the first coil assembly 31 works while the second coil assembly 32 stops working, or vice versa, without adding additional circuit settings. This allows the electronic control device 5 to independently control the first heating element 21 and the second heating element 22 respectively, reducing the overall cost of the machine and improving its economy. At the same time, it enables the cooking appliance 100 to independently control the first coil assembly 31 and the second coil assembly 32 according to the user's needs during cooking, thereby satisfying the user's temperature control and making the cooked food more flavorful.
[0061] It is understandable that the electromagnetic heating device 3 and the electric heating device 2 can also be connected in parallel. This allows for the selection of a suitable heating method based on the material of the cookware, or according to the user's preferences and cooking needs. Such a configuration also provides more operational flexibility in temperature control during cooking and offers better applicability.
[0062] Furthermore, the air outlet of the fan 4 is upward-facing to blow air upwards to cool the lower side of the electromagnetic heating device 3. It is understood that in some embodiments, the fan 4 may be a cross-flow fan, located inside the main body 1, with its air outlet positioned relative to the side wall of the main body 1. However, with this configuration, the airflow inside the main body 1 is horizontal relative to the electromagnetic heating device 3, which only accelerates the airflow within the main body 1 but makes it difficult to directly apply cold air to the electromagnetic heating device 3, resulting in poor overall heat dissipation for the cooking appliance 100. Therefore, in another embodiment, the fan 4 is an axial flow fan. This axial flow fan is located at the bottom of the main body 1, with its air outlet facing upwards, to blow air upwards to cool the lower side of the electromagnetic heating device 3, thereby directly applying cold air to the electromagnetic heating device 3 and achieving a better overall cooling effect for the cooking appliance 100.
[0063] In addition, please refer to Figures 3 to 7 The fan 4 is configured with at least two fans, including a first fan 41 and a second fan 42. The air outlets of the first fan 41 and / or the second fan 42 are arranged upwards and are at least partially located below the electromagnetic heating device 3, so as to blow air upwards and onto the electromagnetic heating device 3 for cooling. It is understood that in order to further cool the interior of the main body 1, two fans 4 are configured, including the first fan 41 and the second fan 42. With the configuration of two fans 4, it is understood that since the main body 1 is equipped with an electric heating device 2 and an electromagnetic heating device 3, when both are activated for heating, on the one hand, the electric heating device 2 will cause high temperatures to the coils 321 of the first coil assembly 31 and the second coil assembly 32. On the other hand, due to the eddy current induction of the electromagnetic heating device 3, the coils 321 of the first coil assembly 31 and the second coil assembly 32 will also generate self-heating, which will lead to the coils 321 becoming too hot and even burning out. This is very detrimental to the use of the cooking appliance 100.
[0064] Therefore, at least one of the air outlets of the first fan 41 and the second fan 42 is arranged facing upwards and is at least partially located on the lower side of the electromagnetic heating device 3, so as to blow air upwards and onto the electromagnetic heating device 3 for cooling. That is, the air outlets of the first fan 41 and the second fan 42 can both face the lower side of the electromagnetic heating device 3, or one of the air outlets can face the lower side of the electromagnetic heating device 3, while the other cools the electronic control device 5 or the electric heating device 2, thereby protecting other internal electronic components from damage due to high temperature.
[0065] Specifically, in this embodiment, the first fan 41 mainly cools the electric heating device 2 and the electromagnetic heating device 3, and the second fan 42 can cool the electric heating device 2 and the electromagnetic heating device 3, or cool the electronic control device 5, or both. The air outlets of the first fan 41 and the second fan 42 are both upward-facing so that cold air can be directly applied to the electric heating device 2, the electromagnetic heating device 3 and the electronic control device 5.
[0066] Further, please refer to Figures 10 to 12 In the horizontal projection, at least one of the fans 4 is completely within the projection of the electromagnetic heating device 3; or, in the horizontal projection, at least a portion of the fans 4 is within the projection of the electromagnetic heating device 3. It is understood that, since the size of the fans 4 is fixed, in order to save horizontal space utilization of the cooking appliance 100, thereby ensuring the overall size of the appliance is not too large and the internal layout is compact and small.
[0067] Therefore, if the cooking appliance 100 is equipped with a fan 4, the fan 4 can be completely within the projection of the electromagnetic heating device 3 on the horizontal plane, thereby cooling the electric heating device 2 and the electromagnetic heating device 3. Alternatively, it can be partially within the projection of the electromagnetic heating device 3, thereby cooling the electric heating device 2 and the electromagnetic heating device 3 while simultaneously cooling other electronic components, especially the electronic control device 5.
[0068] If the cooking appliance 100 is equipped with two fans 4, for example, in one embodiment, one fan can be entirely within the projection of the electromagnetic heating device 3, dedicated to cooling the electric heating device 2 and the electromagnetic heating device 3, while the other fan is not within the projection of the electromagnetic heating device 3, thus better cooling other electronic components, especially the electronic control device 5. Figure 10 In another embodiment, both fans 4 may be partially within the projection of the electromagnetic heating device 3, simultaneously cooling the electric heating device 2 and the electromagnetic heating device 3, and also cooling other electronic components, especially the electronic control device 5. Figure 11 In another embodiment, one of the components may be entirely within the projection of the electromagnetic heating device 3 onto the horizontal plane, while the other is partially within the projection of the electromagnetic heating device 3 onto the horizontal plane. This enhances the cooling effect on the electric heating device 2 and the electromagnetic heating device 3 while simultaneously cooling other internal electronic components. Figure 12 .
[0069] Further, please refer to Figure 8 and Figure 9 The electromagnetic heating device 3 further includes a second coil assembly 32 located around the first coil assembly 31. The second coil assembly 32 is arranged in a ring around the first coil assembly 31, and the second coil 321 extends upward beyond the first coil assembly 31, and includes multiple turns of coil 321 arranged in layers along the vertical direction. The first fan 42 is at least partially located on the lower side of the electromagnetic heating device 3 so as to blow air to the lower side of the electromagnetic heating device 3 for cooling. The main body 1 is provided with a diverter plate 12 corresponding to the second fan 42. The diverter plate 12 extends horizontally, with one end extending towards the second fan 42 and a portion extending towards the second coil 32, so as to guide the airflow of the second fan 42 to the second coil 32.
[0070] It is understandable that, since the first fan 41 is located below the electromagnetic heating device 3, and the second coil assembly 32 of the electromagnetic heating device 3 extends vertically, meaning the coil 321 of the second coil assembly 32 gradually moves away from the air outlet of the first fan 41, the cooling effect of the first fan 41 on the coil 321 of the second coil assembly 32 is poor. Therefore, in order to also cool the coil 321 of the second coil assembly 32 of the electromagnetic heating device 3, in another embodiment, the fan 41 is configured to be at least... The two fans 4 also include the second fan 42. The main body 1 is provided with a diverter plate 12 corresponding to the second fan 42. The diverter plate 12 extends horizontally, with one end extending towards the second fan 42 and a portion extending towards the second coil assembly 32, so as to guide the airflow of the second fan 42 to the second coil assembly 32, thereby dividing the cold air with a lower temperature into upper and lower parts in advance, increasing the cold air in the upper part, and strengthening the heat dissipation effect on the outer coil 321 of the second coil assembly 32 of the electromagnetic heating device 3.
[0071] It is understood that, specifically, in one embodiment, the height H of the diverter plate 12 corresponds to the height h of the second coil assembly 32, where h < H < 1.5h. This allows for good heat dissipation of the second coil assembly 32 of the electromagnetic heating device 3 by cold air, while also retaining sufficient cold air to dissipate heat from the electronic control device 5.
[0072] 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 utensil, characterized in that, include: The main body includes a panel, and a heating area is provided on the upper side of the panel; An electric heating device is disposed within the main body and corresponding to the heating area for heating a pot placed in the heating area. The electric heating device includes at least two heating elements that are independently partitioned, and the two heating elements include a first heating element and a second heating element. An electromagnetic heating device is disposed within the main body. The electromagnetic heating device includes a first coil assembly, which is disposed below the electric heating device. The electromagnetic field of the first coil assembly can pass upward through the electric heating device to electromagnetically heat the cookware placed in the heating area. At least one fan is located at least partially below the electromagnetic heating device so as to blow air to cool the lower side of the electromagnetic heating device; as well as, An electrical control device is electrically connected to the electric heating device, the electromagnetic heating device, and the fan, and can independently control the operation of the first heating element and the second heating element.
2. The cooking appliance as described in claim 1, characterized in that, The electric heating device includes an infrared heating device.
3. The cooking utensil as described in claim 1, characterized in that, The second heating element is arranged in a ring shape and is located around the periphery of the first heating element; and / or, The first heating element and the second heating element are arranged in parallel so that they can be independently controlled by the electronic control device.
4. The cooking appliance as described in claim 1, characterized in that, The first coil assembly is at least partially offset from at least one of the heating elements.
5. The cooking appliance as described in claim 1, characterized in that, The electromagnetic heating device also includes a second coil assembly located around the first coil assembly.
6. The cooking appliance as described in claim 5, characterized in that, The second coil assembly is arranged in a ring around the periphery of the first coil assembly, and includes multiple turns of coil arranged in layers along the vertical direction.
7. The cooking utensil as described in claim 5, characterized in that, The electronic control device can independently control the operation of the first coil assembly and the second coil assembly; and / or, The first coil assembly and the second coil assembly are arranged in parallel so that they can be independently controlled by the electronic control device.
8. The cooking appliance as described in claim 1, characterized in that, The fan's air outlet is positioned upwards so that it can blow air upwards to cool the lower side of the electromagnetic heating device.
9. The cooking appliance as described in claim 1, characterized in that, The fan is configured to be at least two, including a first fan and a second fan. The air outlets of the first fan and / or the second fan are arranged facing upwards and are at least partially located below the electromagnetic heating device so as to blow air upwards and onto the electromagnetic heating device for cooling.
10. The cooking appliance as described in claim 1 or 9, characterized in that, In the projection onto the horizontal plane, at least one of the aforementioned fans is completely within the projection of the electromagnetic heating device; or... In the projection onto the horizontal plane, at least one portion of the fan is located within the projection of the electromagnetic heating device.
11. The cooking appliance as described in claim 9, characterized in that, The electromagnetic heating device further includes a second coil assembly located around the periphery of the first coil assembly. The second coil assembly is arranged in a ring and surrounds the periphery of the first coil assembly. The second coil extends upward beyond the first coil assembly and includes multiple turns of coil arranged in layers along the vertical direction. The first fan is at least partially located on the lower side of the electromagnetic heating device so as to blow air to the lower side of the electromagnetic heating device for cooling. The main body is provided with a flow divider plate corresponding to the second fan. The flow divider plate extends horizontally, with one end extending toward the second fan and a portion extending toward the second coil assembly, so as to guide the airflow of the second fan to the second coil assembly.