Coil panel and cooking apparatus
By designing the first and second coils in the coil pan, the problems of versatility and uniform heating when cooking different portions of food are solved, achieving flexible adaptation of the pot body and efficient heating.
Patent Information
- Application Number
- CN202521522788.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-18
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-18
AI Technical Summary
Existing cooking equipment has poor versatility when cooking different portions of food, especially when cooking small portions in a large pot, it is easy to burn the food and the heating is uneven.
Design a coil plate including a first coil and a second coil surrounding it. The two can work together or independently. By adjusting the combination of the coils, the heating area can be adapted to different dishes, thereby improving heating uniformity and versatility.
It achieves heating adaptability for cooking small and large portions of dishes, reduces scorching, and improves heating uniformity and dish quality.
Smart Images
Figure CN224684393U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cooking equipment technology, and more specifically, to a coil plate and a cooking device. Background Technology
[0002] Cooking equipment is typically designed for cooking large portions in large pots and small portions in small pots. Large pots have heating coils covering a larger area, while small pots have coils covering a smaller area. Therefore, large pots generally have much higher heating power and a much larger heating area than small pots. If a large pot is used to cook a small portion, the areas not covered by the food will also be continuously heated, easily leading to burning. Thus, large pots are currently only suitable for cooking large portions and not for small portions. Another application scenario is the cooking method of "earthen pot chicken." Typically, the chicken is heated in the center of the pot, while flatbreads are placed around the edges. These flatbreads only need short-term heating and are then steamed until cooked through; therefore, the heating power required differs from that of the chicken in the pot. Utility Model Content
[0003] In view of this, the present invention provides a coil plate and a cooking device, the main purpose of which is to improve the cooking versatility of the pot body of the cooking device.
[0004] To achieve the above objectives, this utility model mainly provides the following technical solutions:
[0005] On one hand, this utility model embodiment provides a coil plate, applied to cooking equipment, including:
[0006] First coil;
[0007] The second coil is a ring-shaped coil that surrounds the outside of the first coil. The first coil and the second coil are used to work together or independently. The maximum straight-line distance from the center of the second coil to its edge is D1, and the maximum straight-line distance between the outer periphery of the first coil and the inner periphery of the second coil is 0.45D1.
[0008] Furthermore, the maximum straight-line distance from the center of the first coil to its edge is D2;
[0009] The minimum straight-line distance between the outer periphery of the first coil and the inner periphery of the second coil is -0.25D2.
[0010] Furthermore, there is no gap between at least a portion of the outer periphery of the first coil and at least a portion of the inner periphery of the second coil.
[0011] Furthermore, at least a portion of the outer periphery of the first coil overlaps with at least a portion of the inner periphery of the second coil;
[0012] or,
[0013] At least a portion of the outer periphery of the first coil is adjacent to and in contact with at least a portion of the inner periphery of the second coil.
[0014] Furthermore, the first coil and the second coil are coaxially arranged.
[0015] Furthermore, the overall outline shape of the first coil and the second coil is adapted to the outline shape of the pot body of the cooking device.
[0016] Furthermore, the first coil and / or the second coil are concave coils or planar coils.
[0017] Furthermore, the outer peripheral contour shape of the first coil may be the same as or different from the inner peripheral contour shape of the second coil; and / or,
[0018] The outer circumferential contour shape of the second coil may be the same as or different from the inner circumferential contour shape.
[0019] Furthermore, the outer periphery of the first coil is circular, elliptical, polygonal, or irregular in shape;
[0020] And / or,
[0021] The outer and / or inner contour shapes of the second coil are circular, elliptical, polygonal, or irregular.
[0022] Furthermore, the first coil includes a first coil body and a first support, with the first coil body disposed on the first support; the second coil includes a second coil body and a second support, with the second coil body disposed on the second support;
[0023] The first bracket and the second bracket are separately configured but connected; or,
[0024] The first bracket and the second bracket are integrally formed.
[0025] Furthermore, the first coil and the second coil are controlled at the same frequency.
[0026] Furthermore, the heating power of the first coil is 0-25 kW, and / or the heating power of the second coil is 0-15 kW; the heating power when the first coil and the second coil work together is 0-40 kW.
[0027] Furthermore, the heating power of the first coil is 0-12 kW, and / or the heating power of the second coil is 0-6 kW; the heating power when the first coil and the second coil work together is 0-18 kW.
[0028] On the other hand, this utility model embodiment provides a cooking device, including a pot body and the aforementioned coil; the first coil is closer to the center of the pot body than the second coil.
[0029] By employing the above technical solution, this utility model has at least the following beneficial effects:
[0030] In the coil pan and cooking device provided in this embodiment of the invention, the second coil of the coil pan is arranged around the outside of the first coil, and the first and second coils can work together or work independently. When cooking small portions of food, the first coil can be activated, and the heating area of the first coil on the pot can be adapted to the area covered by the small portion of food, thereby enabling the cooking of small portions of food without the risk of burning. When cooking large portions of food, both the first and second coils can be activated, and the heating areas of the first and second coils on the pot can be adapted to the area covered by the large portion of food, thereby enabling the cooking of large portions of food. Thus, the coil pan provided in this embodiment of the invention, by switching the operation of the first and second coils, can achieve different coverage areas of the pot, thereby enabling the pot to cook both small and large portions of food, thus improving the versatility of the pot for cooking. Meanwhile, the maximum straight-line distance between the outer periphery of the first coil and the inner periphery of the second coil is 0.45 times the maximum straight-line distance from the center of the second coil to its edge. That is, the first coil and the second coil can be densely arranged, thereby reducing or even eliminating the low-temperature area between the first coil and the second coil, which in turn improves the heating uniformity of the coil plate on the pot, which is beneficial to the temperature balance of the pot, can improve the problem of sticking to the pot, and thus improve the cooking quality of the dishes. Attached Figure Description
[0031] Figure 1 A schematic diagram of the structure of a coil disk provided in an embodiment of this utility model;
[0032] Figure 2 This is a schematic diagram of another coil disk provided in an embodiment of the present utility model. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the present utility model will be described in more detail below with reference to the accompanying drawings of the preferred embodiments. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this utility model. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Some embodiments of this utility model will be described in detail below with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features can be combined with each other.
[0034] In the description of this embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "level", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this embodiment.
[0035] like Figure 1 and Figure 2 As shown, this utility model embodiment provides a coil plate for use in cooking equipment. The coil plate includes a first coil 1 and a second coil 2. The second coil 2 is a ring and surrounds the outside of the first coil 1. The first coil 1 and the second coil 2 are used to work together or work independently. The maximum straight-line distance from the center of the second coil 2 to its edge is D1, and the maximum straight-line distance between the outer periphery of the first coil 1 and the inner periphery of the second coil 2 is 0.45D1.
[0036] It is understandable that the second coil 2 is a ring, which can be a circular ring, a polygonal ring, or an irregularly shaped ring, as long as it can be wrapped around the outside of the first coil 1 in order to heat the pot.
[0037] When the first coil 1 and the second coil 2 work together, they can be connected in series or in parallel.
[0038] The coil pan provided in this embodiment of the utility model has a second coil 2 surrounding the outside of the first coil 1. The first coil 1 and the second coil 2 can work together or independently. When cooking small portions, the first coil 1 can be activated, and its heating area on the pot body can be adapted to the area covered by the small portion of food, thus enabling the cooking of small portions without easily burning. When cooking large portions, both the first coil 1 and the second coil 2 can be activated, and their heating areas on the pot body can be adapted to the area covered by the large portion of food, thus enabling the cooking of large portions. Therefore, the coil pan provided in this embodiment of the utility model, by switching the operation of the first coil 1 and the second coil 2, can achieve different coverage areas on the pot body, allowing the pot to cook both small and large portions, thereby improving the versatility of the pot's cooking capabilities. Meanwhile, the maximum straight-line distance between the outer periphery of the first coil 1 and the inner periphery of the second coil 2 is 0.45 times the maximum straight-line distance from the center of the second coil 2 to its edge. That is, the first coil 1 and the second coil 2 can be densely arranged, thereby reducing or even eliminating the low-temperature area between the first coil 1 and the second coil 2, thereby improving the heating uniformity of the coil plate on the pot body, which is conducive to the temperature balance of the pot body, can improve the problem of sticking to the pot, and thus improve the cooking quality of the dishes.
[0039] In some embodiments, the maximum straight-line distance from the center of the first coil 2 to its edge is D2; the minimum straight-line distance between the outer periphery of the first coil 1 and the inner periphery of the second coil 2 is -0.25D2.
[0040] In other words, the first coil 1 and the second coil 2 can be arranged densely and are allowed to overlap to a certain extent, thereby reducing or even eliminating the low-temperature area between the first coil 1 and the second coil 2, thus improving the heating uniformity of the coil plate on the pot body, which is beneficial to the temperature balance of the pot body, can improve the problem of sticking to the pot, and further improve the cooking quality of the dishes.
[0041] In some embodiments, there is no gap between at least a portion of the outer periphery of the first coil 1 and at least a portion of the inner periphery of the second coil 2.
[0042] Specifically, see Figure 1 At least a portion of the outer periphery of the first coil 1 overlaps with at least a portion of the inner periphery of the second coil 2; or, see [link to relevant documentation]. Figure 2 At least a portion of the outer periphery of the first coil 1 is adjacent to and in contact with at least a portion of the inner periphery of the second coil 2.
[0043] In some embodiments, see Figure 1 and Figure 2The first coil 1 and the second coil 2 can be arranged coaxially so that the coil disk can form a uniform magnetic field distribution on the pot body, reducing local overheating or cold spots in the pot body. Moreover, the coaxial arrangement of the first coil 1 and the second coil 2 can also reduce magnetic field leakage, focusing energy on the pot body, thereby improving heating efficiency.
[0044] In some embodiments, the first coil 1 and the second coil 2 can be applied to half-bridge and full-bridge resonant circuit topologies, such as half-bridge common bus topology, half-bridge non-common bus topology, full-bridge common bus topology, full-bridge non-common bus topology, etc., and can adopt three-phase power input or single-phase power input, DC power input, etc.
[0045] In some embodiments, the first coil 1 and the second coil 2 can be controlled at the same frequency. When the first coil 1 and the second coil 2 work together, their operating frequencies are synchronized in real time, keeping the magnetic fields of the two coils in the same direction at all times. This avoids the magnetic fields of the two coils canceling each other out and failing to heat up, thereby preventing mutual inductance from affecting the stability of the circuit topology.
[0046] When the first coil 1 and the second coil 2 work together, the heating power of the first coil 1 can be 0 to 25 kW; and / or the heating power of the second coil 2 can be 0 to 15 kW. Further, the heating power when the first coil 1 and the second coil 2 work together can be 0 to 40 kW.
[0047] Furthermore, the output power of the first coil 1 and the second coil 2 can be adjusted independently, or when the first coil and the second coil work together, only the total output power can be adjusted without considering the power distribution between the two. In addition, the inductance of the first coil 1 and the second coil 2 can have a certain deviation, or they can be the same. Specifically, the resonant state of the two can be adapted by adjusting system parameters such as the resonant capacitor parameters.
[0048] In some embodiments, when the first coil 1 and the second coil 2 work together, the heating power of the first coil 1 can be 0 to 12 kW; and / or the heating power of the second coil 2 can be 0 to 6 kW. Further, the heating power when the first coil 1 and the second coil 2 work together can be 0 to 18 kW.
[0049] In some embodiments, the overall outline shape of the first coil 1 and the second coil 2 is adapted to the outline shape of the pot body of the cooking device, so that the coil can focus energy on the pot body, thereby further improving heating efficiency.
[0050] In some embodiments, the first coil 1 and / or the second coil 2 may be a concave coil or a planar coil, so that the coil disc is suitable for use in a drum pan, a wok, or a flat pan.
[0051] In some embodiments, the outer peripheral contour shape of the first coil 1 may be the same as or different from the inner peripheral contour shape of the second coil 2; and / or, the outer peripheral contour shape of the second coil 2 may be the same as or different from the inner peripheral contour shape.
[0052] In other words, the outline shapes of the first coil 1 and the second coil 2 can vary. Specifically, the outer outline shape of the first coil 1 can be circular, elliptical, polygonal, or irregular; and / or, the outer outline shape and / or inner outline shape of the second coil 2 can be circular, elliptical, polygonal, or irregular.
[0053] In some embodiments, the first coil 1 includes a first coil body and a first support, with the first coil body disposed on the first support; the second coil 2 includes a second coil body and a second support, with the second coil body disposed on the second support.
[0054] The first and second supports can be separately configured and connected; or, the first and second supports can be integrally formed. That is, the first coil body and the second coil body can be wound on their respective supports, or the first coil body and the second coil body can be wound together on one support.
[0055] This utility model embodiment also provides a cooking device, including a pot body and the aforementioned coil plate, wherein the first coil 1 is closer to the center of the pot body than the second coil 2.
[0056] The cooking device provided in this embodiment of the present invention includes a coil, and therefore has all the beneficial effects of a coil, which will not be elaborated here.
[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A coil plate, used in cooking equipment, characterized in that, include: First coil (1); The second coil (2) is a ring and surrounds the outside of the first coil (1). The first coil (1) and the second coil (2) are used to work together or work independently. The maximum straight-line distance from the center of the second coil (2) to its edge is D1. The maximum straight-line distance between the outer periphery of the first coil (1) and the inner periphery of the second coil (2) is 0.45D1.
2. The coil disk according to claim 1, characterized in that, The maximum straight-line distance from the center of the first coil (2) to its edge is D2; The minimum straight-line distance between the outer periphery of the first coil (1) and the inner periphery of the second coil (2) is -0.25D2.
3. The coil disk according to claim 2, characterized in that, There is no gap between at least a portion of the outer periphery of the first coil (1) and at least a portion of the inner periphery of the second coil (2).
4. The coil disk according to claim 3, characterized in that, At least a portion of the outer periphery of the first coil (1) overlaps with at least a portion of the inner periphery of the second coil (2); or, At least a portion of the outer periphery of the first coil (1) is adjacent to and in contact with at least a portion of the inner periphery of the second coil (2).
5. The coil disk according to claim 1, characterized in that, The first coil (1) and the second coil (2) are coaxially arranged.
6. The coil disk according to claim 1, characterized in that, The overall outline shape of the first coil (1) and the second coil (2) is adapted to the outline shape of the pot body of the cooking device.
7. The coil disk according to claim 6, characterized in that, The first coil (1) and / or the second coil (2) are concave coils or planar coils.
8. The coil disk according to claim 1, characterized in that, The outer peripheral contour shape of the first coil (1) may be the same as or different from the inner peripheral contour shape of the second coil (2); and / or, The outer circumferential contour shape of the second coil (2) may be the same as or different from the inner circumferential contour shape.
9. The coil disk according to claim 8, characterized in that, The outer contour shape of the first coil (1) is circular, elliptical, polygonal, or irregular; And / or, The outer and / or inner contour shapes of the second coil (2) are circular, elliptical, polygonal, or irregular.
10. The coil disk according to claim 1, characterized in that, The first coil (1) includes a first coil body and a first support, with the first coil body disposed on the first support; the second coil (2) includes a second coil body and a second support, with the second coil body disposed on the second support; The first bracket and the second bracket are separately configured but connected; or, The first bracket and the second bracket are integrally formed.
11. The coil disk according to claim 1, characterized in that, The first coil (1) and the second coil (2) are controlled at the same frequency.
12. The coil disk according to claim 1, characterized in that, The heating power of the first coil (1) is 0-25 kW, and / or, The heating power of the second coil (2) is 0-15kw; The heating power of the first coil (1) and the second coil (2) when working together is 0 to 40 kW.
13. The coil disk according to claim 12, characterized in that, The heating power of the first coil (1) is 0-12 kW, and / or, The heating power of the second coil (2) is 0-6 kW; The heating power of the first coil (1) and the second coil (2) working together is 0 to 18 kW.
14. A cooking appliance, characterized in that, include: The pot body and the coil disc as described in any one of claims 1 to 13; the first coil (1) is generally closer to the center of the pot body than the second coil (2).