Coil panel and cooking equipment

Abstract

The utility model provides a coil panel and cooking equipment, and relates to the technical field of cooking equipment. The coil disc includes: a heat insulating member; the winding is arranged on the heat insulation part, the winding is spirally wound on the heat insulation part to form a coil, and the coil comprises a plurality of coil layers in the radial direction of the coil; wherein the distance between two adjacent coil layers is the radial interval of the coil, and the coil comprises a plurality of radial intervals; in the plurality of radial intervals, at least one radial interval is different from the other radial intervals. The coil panel has the electromagnetic heating capacity and the thermal radiation heating capacity at the same time, the universality of the induction type heating cooking utensil is improved, and the technical effects of optimizing the structure of the coil panel, widening the application range of the coil panel, improving the practicability of the coil panel and reducing the production cost of the coil panel are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooking equipment, in particular to a coil plate and cooking equipment. Background Art

[0002] In the related technology, electromagnetic heating is achieved by coupling the coil disk with the bottom of the pot, which generates eddy currents at the bottom of the pot and then generates heat. Its characteristic is that it heats up quickly. However, the disadvantage of electromagnetic heating is that it can only heat pots made of magnetic materials, and cooking utensils such as glass and ceramics cannot be heated, which limits the application scenarios of the product and affects the user experience.

[0003] Therefore, how to overcome the above-mentioned technical defects has become a technical problem that needs to be solved urgently. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art.

[0005] To this end, the first aspect of the utility model provides a coil disk.

[0006] A second aspect of the utility model provides a cooking device.

[0007] In view of this, for the coil disk proposed in the first aspect of the utility model, the coil disk includes: a heat insulating component; a winding, which is arranged on the heat insulating component, and the winding is spirally wound on the heat insulating component to form a coil, and in the radial direction of the coil, the coil includes a plurality of layers; wherein the distance between two adjacent layers is the radial spacing of the coil, and the coil includes a plurality of radial spacings; among the plurality of radial spacings, at least one radial spacing is different from the other radial spacings.

[0008] The present application defines a coil disk, which has electromagnetic heating function and thermal radiation heating function. The coil disk includes a heat insulation component and a winding, and the winding is spirally wound on the heat insulation component. On the one hand, the heat insulation component can provide positioning and support for the winding, and on the other hand, the heat insulation component has excellent heat insulation performance and can prevent the heat transferred by the winding from diffusing to the outside of the heat insulation component.

[0009] On this basis, the winding is spirally wound on the insulation component to form a spiral coil on the insulation component. When the spiral coil is energized, an electromagnetic field can be generated above it. At the same time, due to the certain internal resistance of the coil, the energized coil can also generate heat radiation at the same time.

[0010] Among them, the electromagnetic field intensity and heat radiation intensity generated by the coil can be distributed by changing the frequency of the power supply current of the coil. Specifically, after the high-frequency current is passed through the coil, the coil can not only generate an electromagnetic field, but also generate heat due to its own impedance. Specifically, when the frequency of the alternating current passed through the coil increases, the impedance of the coil itself will also increase. When the impedance of the coil increases, the heat generated when the current passes through the coil will also increase. Therefore, the coil itself can generate enough heat, which is transferred to the cooking utensil to heat the cooking utensil.

[0011] During operation, if a magnetic cooking utensil is placed above the coil disk, the magnetic cooking utensil will resonate in the electromagnetic field and generate eddy currents. Under the action of the eddy currents, the magnetic cooking utensil gradually heats up, so that food can be cooked by the high-temperature magnetic cooking utensil. At the same time, the heat radiation generated by the coil can also provide auxiliary heating for the magnetic cooking utensil to increase the heating power.

[0012] If a non-magnetic cooking utensil is placed on top of the coil disk, although the non-magnetic cooking utensil cannot generate eddy currents through resonance in the electromagnetic field, the heat radiation generated by the coil can directly heat the non-magnetic cooking utensil, thereby cooking food with the high-temperature non-magnetic cooking utensil. And because the coil generates a large amount of heat radiation, when the user flips the pot, the actual heating effect of the coil disk on the cooking utensil will not be affected by the migration of the cooking utensil, thereby simulating the effect of open flame cooking.

[0013] It can be seen that the coil disk defined in the present application has both electromagnetic heating capability and thermal radiation heating capability. When the cooking utensil type is a metal cooking utensil or other cooking utensil with a high magnetic permeability, the cooking utensil is heated by forming an eddy current in the cooking utensil through traditional induction heating. When the cooking utensil type is a non-metallic cooking utensil or other cooking utensil without a high magnetic permeability, the coil's own impedance is increased by a higher oscillation frequency, and the coil is heated by increasing the coil's own impedance, and the cooking utensil is heated by the heat generated by the coil heating. Thus, without changing the hardware structure of the original induction heating cooking utensil, the induction heating cooking utensil can heat the non-metallic cooking utensil, thereby improving the versatility of the induction heating cooking utensil and solving the high cost technical problem existing in the related art. Thus, the technical effect of optimizing the coil disk structure, broadening the scope of application of the coil disk, improving the practicality of the coil disk, and reducing the production cost of the coil disk is achieved.

[0014] On this basis, the spirally wound coil disk includes multiple layers in the radial direction, and the distance between two adjacent layers in the radial direction is the radial spacing of the coil at this location, and the radial spacing can reflect the density of the coil winding at this location.

[0015] The coil includes a plurality of radial intervals, and at least one radial interval is different from the other radial intervals, that is, the size of the radial interval can be changed according to demand, and the density of the spiral winding of the coil can be adjusted according to demand.

[0016] By adjusting the density of the coil spiral winding, the heating capacity of the coil disk in different areas can be adjusted, so as to adjust the heating uniformity and heating range of the coil disk. For example, the radial spacing of the overheated area is increased to make the windings in the overheated area more sparse, and the radial spacing of the area with poor heating capacity is correspondingly reduced to make the windings in the area with poor heating capacity more compact. This achieves the technical effect of optimizing the winding coil structure, improving the heating uniformity and heating reliability of the winding, and improving the quality of the cooked food.

[0017] In addition, the coil disk provided by the present invention may also have the following additional technical features:

[0018] In some technical solutions of the utility model, optionally, the winding includes a first section and a second section, and the first section and the second section are connected in series; the first section includes a plurality of first coils, and the distance between two adjacent first coils is a first radial spacing; the second section includes a plurality of second coils, and the distance between two adjacent second coils is a second radial spacing; wherein the second radial spacing is greater than the first radial spacing.

[0019] In some technical solutions of the present invention, optionally, the number of first segments is N+1, the number of second segments is N, and N is an integer greater than or equal to 1; in the extension direction of the winding, N+1 first segments and N second segments are alternately connected in series.

[0020] In some technical solutions of the present utility model, optionally, the first section and the second section are coiled along an arc.

[0021] In some technical solutions of the present utility model, optionally, the first section is coiled along an arc line; the second section is coiled along a fold line, and / or the second section is coiled along a wavy line.

[0022] In some technical solutions of the present utility model, optionally, the first section is coiled along a fold line, and / or the first section is coiled along a wavy line; the second section is coiled along a fold line, and / or the second section is coiled along a wavy line.

[0023] In some technical solutions of the utility model, optionally, in the circumferential direction of the coil, the distance between two adjacent bending segments or the distance between two adjacent waves is the circumferential spacing of the coil; the first segment includes a first circumferential spacing, the second segment includes a second circumferential spacing, and the first circumferential spacing is greater than the second circumferential spacing.

[0024] In some technical solutions of the present utility model, optionally, the range of the radial spacing is: greater than or equal to 0.5 mm and less than or equal to 10 mm.

[0025] In some technical solutions of the present invention, optionally, in the midline direction of the wave line, the distance between two adjacent wave peaks is the tooth pitch of the wave line; the range of the tooth pitch is: greater than or equal to 1 mm, and less than or equal to 15 mm.

[0026] In some technical solutions of the present invention, optionally, in a direction perpendicular to the center line of the wave line, the maximum distance between adjacent wave crests and wave troughs is the tooth height of the wave line; the range of the tooth height is: greater than or equal to 0.5 mm, and less than or equal to 10 mm.

[0027] In some technical solutions of the present invention, optionally, the winding includes: a first winding, the size of the first winding in the radial direction of the coil is a first thickness, and the size of the first winding in the axial direction of the coil is a first width; the first width is greater than the first thickness; the ratio of the first width to the first thickness is greater than or equal to 2.

[0028] In some technical solutions of the present utility model, optionally, the first thickness ranges from greater than or equal to 0.1 mm to less than or equal to 0.4 mm.

[0029] In some technical solutions of the utility model, optionally, the winding also includes: a second winding, the size of the second winding in the radial direction of the coil is a second width, and the size of the second winding in the axial direction of the coil is a second thickness; the second width is greater than the second thickness; the ratio of the second width to the second thickness is greater than or equal to 2.

[0030] In some technical solutions of the present utility model, optionally, the second thickness ranges from greater than or equal to 0.1 mm to less than or equal to 0.4 mm.

[0031] In some technical solutions of the present utility model, optionally, the cross-sectional shape of the winding includes: rectangle, trapezoid, parallelogram or racetrack.

[0032] In some technical solutions of the present utility model, optionally, the resistance of the winding is in the range of: greater than or equal to 0.3Ω and less than or equal to 0.7Ω.

[0033] In some technical solutions of the present utility model, optionally, the coil disk further includes: a supporting component connected to the heat insulating component; and a magnetic component arranged on a side of the supporting component facing away from the heat insulating component.

[0034] In some technical solutions of the present utility model, optionally, the magnetic member is in a strip shape, and the length direction of the magnetic member is consistent with the radial direction of the coil.

[0035] The first aspect of the utility model provides a cooking device, which comprises: a body; and a coil disk as in any of the above technical solutions, which is arranged on the body.

[0036] Additional aspects and advantages of the present invention will become apparent in the following description or will be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0038] Figure 1 A schematic structural diagram of a coil disk according to an embodiment of the utility model is shown;

[0039] Figure 2 A schematic structural diagram of a coil disk according to an embodiment of the utility model is shown;

[0040] Figure 3 A schematic structural diagram of a coil disk according to an embodiment of the utility model is shown;

[0041] Figure 4 A schematic structural diagram of a coil disk according to an embodiment of the utility model is shown;

[0042] Figure 5 A schematic structural diagram of a coil disk according to an embodiment of the utility model is shown;

[0043] Figure 6 A schematic structural diagram of a coil disk according to an embodiment of the utility model is shown;

[0044] Figure 7 A schematic structural diagram of a coil disk according to an embodiment of the utility model is shown;

[0045] Figure 8 A schematic structural diagram of a coil disk according to an embodiment of the utility model is shown;

[0046] Fig. 9 A schematic structural diagram of a coil disk according to an embodiment of the utility model is shown;

[0047] Fig.10 for Fig. 9 A partial enlarged view of the coil disk in the illustrated embodiment in area A;

[0048] Fig.11 A schematic diagram of the structure of a winding according to an embodiment of the utility model is shown;

[0049] Fig.12 for Fig.11A partial enlarged view of the winding in area B in the illustrated embodiment;

[0050] Fig.13 A schematic diagram of the structure of a winding according to an embodiment of the utility model is shown;

[0051] Fig.14 A schematic structural diagram of a coil disk according to an embodiment of the utility model is shown;

[0052] Fig.15 A schematic structural diagram of a coil disk according to an embodiment of the utility model is shown;

[0053] Fig.16 A schematic structural diagram of a coil according to an embodiment of the utility model is shown;

[0054] Fig.17 for Fig.16 A partial enlarged view of the coil in the C region in the illustrated embodiment;

[0055] Fig.18 A schematic structural diagram of a coil according to an embodiment of the utility model is shown;

[0056] Fig.19 for Fig.18 A partial enlarged view of the coil in the D region in the illustrated embodiment;

[0057] Fig. 20 A cross-sectional view of a winding according to an embodiment of the utility model is shown;

[0058] Fig.21 A cross-sectional view of a winding according to an embodiment of the utility model is shown;

[0059] Fig. 22 A cross-sectional view of a winding according to an embodiment of the utility model is shown;

[0060] Fig.23 A cross-sectional view of a winding according to an embodiment of the utility model is shown;

[0061] Fig.24 A schematic structural diagram of a coil according to an embodiment of the utility model is shown;

[0062] Fig.25 A schematic structural diagram of a coil according to an embodiment of the utility model is shown;

[0063] Fig.26 A schematic structural diagram of a coil according to an embodiment of the utility model is shown;

[0064] Fig. 27A schematic structural diagram of a coil according to an embodiment of the utility model is shown;

[0065] Fig.28 An exploded view of a coil disk according to an embodiment of the present invention is shown;

[0066] Fig.29 An exploded view of a coil disk according to an embodiment of the present invention is shown;

[0067] Fig.30 A schematic structural diagram of a coil disk according to an embodiment of the utility model is shown.

[0068] in, Figures 1 to 30 The corresponding relationship between the reference numerals and component names in the figure is:

[0069] 100 coil disk, 110 heat insulation component, 120 winding, 1202 coil, 122 first section, 1222 first coil layer, 124 second section, 1242 second coil layer, 126 first winding, 128 second winding, 130 supporting component, 140 magnetic member, 200 cooking utensil. DETAILED DESCRIPTION

[0070] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0071] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0072] Refer to the following Figures 1 to 30 A coil pan and a cooking device according to some embodiments of the present invention are described.

[0073] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, an embodiment of the utility model proposes a coil disk 100, the coil disk 100, comprising: a heat insulating component 110; a winding 120, which is arranged on the heat insulating component 110, and the winding 120 is spirally wound on the heat insulating component 110 to form a coil 1202, and in the radial direction of the coil 1202, the coil 1202 includes a plurality of layers; wherein the distance between two adjacent layers is the radial spacing of the coil 1202, and the coil 1202 includes a plurality of radial spacings; among the plurality of radial spacings, at least one radial spacing is different from the other radial spacings.

[0074] The present application defines a coil disk 100, which has electromagnetic heating function and thermal radiation heating function. The coil disk 100 includes a heat insulating component 110 and a winding 120, and the winding 120 is spirally wound on the heat insulating component 110. On the one hand, the heat insulating component 110 can provide positioning and support for the winding 120, and on the other hand, the heat insulating component 110 has excellent heat insulating performance, which can prevent the heat transferred by the winding 120 from diffusing to the outside of the heat insulating component 110.

[0075] On this basis, the winding 120 is spirally wound on the insulation component 110 to form a spiral coil 1202 on the insulation component 110. When the spiral coil 1202 is energized, it can generate an electromagnetic field above it. At the same time, since the coil 1202 has a certain internal resistance, the energized coil 1202 can also generate heat radiation at the same time.

[0076] The electromagnetic field intensity and heat radiation intensity generated by the coil 1202 can be distributed by changing the frequency of the power supply current of the coil 1202. Specifically, after the high-frequency current is passed through the coil 1202, the coil 1202 can not only generate an electromagnetic field, but also generate heat due to its own impedance. Specifically, when the frequency of the alternating current passed through the coil 1202 increases, the impedance of the coil 1202 itself will also increase. When the impedance of the coil 1202 increases, the heat generated when the current passes through the coil 1202 will also increase. Therefore, the coil 1202 itself can generate enough heat, and this heat is transferred to the cooking utensil 200 to heat the cooking utensil 200.

[0077] During operation, if a magnetic cooking utensil is placed above the coil disk 100, the magnetic cooking utensil will resonate in the electromagnetic field and generate eddy currents. Under the action of the eddy currents, the magnetic cooking utensil will gradually heat up, so that food can be cooked by the high-temperature magnetic cooking utensil. At the same time, the heat radiation generated by the coil 1202 can also provide auxiliary heating for the magnetic cooking utensil to increase the heating power.

[0078] If a non-magnetic cooking utensil is placed on the coil disk 100, although the non-magnetic cooking utensil cannot generate eddy currents through resonance in the electromagnetic field, the heat radiation generated by the coil 1202 can directly heat the non-magnetic cooking utensil, thereby cooking food with the high-temperature non-magnetic cooking utensil. In addition, since the coil 1202 generates a large amount of heat radiation, when the user flips the pot, the actual heating effect of the coil disk 100 on the cooking utensil 200 will not be affected by the migration of the cooking utensil 200, thereby simulating the effect of open flame cooking.

[0079] It can be seen that the coil disk 100 defined in the present application has both electromagnetic heating capability and thermal radiation heating capability. When the cooking utensil 200 is a cooking utensil 200 with a high magnetic permeability such as a metal cooking utensil, the cooking utensil 200 is heated by forming an eddy current in the cooking utensil 200 through traditional induction heating. When the cooking utensil 200 is a cooking utensil 200 without a high magnetic permeability such as a non-metallic cooking utensil, the coil 1202 is increased in impedance by a higher oscillation frequency, and the coil 1202 is heated by increasing its own impedance, and the cooking utensil 200 is heated by the heat generated by the heating of the coil 1202. Thus, without changing the hardware structure of the original induction heating cooking utensil 200, the induction heating cooking utensil 200 can heat the non-metallic cooking utensil, thereby improving the versatility of the induction heating cooking utensil 200 and solving the high cost technical problem existing in the related art. Thereby, the technical effects of optimizing the structure of the coil disk 100 , broadening the application scope of the coil disk 100 , improving the practicality of the coil disk 100 , and reducing the production cost of the coil disk 100 are achieved.

[0080] On this basis, the spirally wound coil disk 100 includes multiple layers in the radial direction, and the distance between two adjacent layers in the radial direction is the radial spacing of the coil 1202 here, and the radial spacing can reflect the density of the coil 1202 winding here.

[0081] The coil 1202 includes a plurality of radial intervals, and at least one radial interval is different from the other radial intervals, that is, the size of the radial interval can be changed according to demand, and the density of the spiral winding of the coil 1202 can be adjusted according to demand.

[0082] By adjusting the density of the spiral winding of the coil 1202, the heating capacity of the coil disk 100 in different areas can be adjusted, so as to adjust the heating uniformity and heating range of the coil disk 100. For example, the radial spacing of the overheated area is increased to make the windings 120 in the overheated area more sparse, and the radial spacing of the area with poor heating capacity is correspondingly reduced to make the windings 120 in the area with poor heating capacity more compact. In this way, the winding structure of the winding 120 is optimized, the heating uniformity and heating reliability of the winding 120 are improved, and the quality of the cooked food is improved.

[0083] Specifically, the electromagnetic heating capacity and the thermal radiation heating capacity of the coil disk 100 can be distributed by adjusting the frequency of the driving current to form a variety of different heating modes.

[0084] Specifically, the winding 120 is made of a high temperature resistant metal material, and the winding 120 needs to withstand at least 600° C.

[0085] Specifically, the material of the heat insulating component 110 can be selected as white carbon black.

[0086] like Figure 3 As shown, in some embodiments of the utility model, optionally, the winding 120 includes a first section 122 and a second section 124, and the first section 122 and the second section 124 are connected in series; the first section 122 includes a plurality of first coils 1222, and the distance between two adjacent first coils 1222 is a first radial spacing X1, X3; the second section 124 includes a plurality of second coils 1242, and the distance between two adjacent second coils 1242 is a second radial spacing X2; wherein the second radial spacing X2 is greater than the first radial spacing X1, X3.

[0087] In this embodiment, the winding 120 is divided into a first section 122 and a second section 124 according to the density of the winding 120 , wherein the first section 122 and the second section 124 are connected in series, and after spiral winding, the first section 122 and the second section 124 are staggered in the radial direction of the coil 1202 .

[0088] Specifically, the first section 122 includes a plurality of first coils 1222, and the distance between two adjacent first coils 1222 in the plurality of first coils 1222 is a first radial interval X1, X3, and the second section 124 includes a plurality of second coils 1242, and the distance between two adjacent second coils 1242 in the plurality of second coils 1242 is a second radial interval X2. And the second radial interval X2 is greater than the first radial interval X1, X3, that is, the winding 120 in the area where the first section 122 is located is relatively tightly wound, and the winding 120 in the area where the second section 124 is located is relatively sparsely wound.

[0089] By dividing the coil 1202 into a first section 122 and a second section 124 with different densities, the heating uniformity and heating range of the coil disk 100 can be adjusted, thereby optimizing the winding structure of the winding 120, improving the heating uniformity and heating reliability of the winding 120, and improving the quality of the cooked food.

[0090] like Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, in some embodiments of the present invention, optionally, the number of first segments 122 is N+1, the number of second segments 124 is N, and N is an integer greater than or equal to 1; in the extension direction of the winding 120, N+1 first segments 122 and N second segments 124 are alternately connected in series.

[0091] In this embodiment, the winding 120 includes N second segments 124 and N+1 first segments 122, and in the extension direction of the winding 120, the N+1 first segments 122 are alternately connected in series with the N second segments 124. Specifically, the front and rear ends of the winding 120 are the first segments 122, and the second segments 124 are interspersed in the middle of the winding 120.

[0092] By providing alternately connected first sections 122 and second sections 124 , the first sections 122 and second sections 124 on the wound coil 1202 can be evenly distributed, avoiding the electromagnetic heating function and the infrared heating function from being limited to a small area, thereby improving the heating uniformity of the coil disk 100 .

[0093] At the same time, by setting the two ends of the winding 120 as the first section 122, the second section 124 can be located in the central area of ​​the coil 1202, avoiding the edge area, to ensure that the second section 124 can centrally heat the non-magnetic cooking utensil 200 placed above the coil 1202, thereby avoiding the eccentric second section 124 from being unable to effectively heat the cooking utensil 200.

[0094] Specifically, N is an integer greater than or equal to 1, for example, one second section 124 and two first sections 122 may be provided. Increasing N may improve the distribution level of the first section 122 and the second section 124 to enhance heating uniformity.

[0095] Specifically, the winding 120 includes two first segments 122 and one second segment 124 , wherein one first segment 122 is located in the central area of ​​the coil 1202 , the other second segment 124 is located in the edge area of ​​the coil 1202 , and the second segment 124 is located between the first segment 122 and the second segment 124 .

[0096] Due to the ring effect, the resonant electromagnetic heating of the spirally wound coil 1202 will be concentrated between 1 / 3 and 1 / 2 of the diameter of the coil 1202. The winding 120 can be sparsely wound by providing a second section 124 to compensate for the concentration problem of electromagnetic heating.

[0097] like Figure 3 As shown, in some embodiments of the present invention, optionally, the first section 122 and the second section 124 are coiled along an arc.

[0098] In this embodiment, the first section 122 and the second section 124 are coiled along an arc, and the axis of the arc coincides with the axis of the coil 1202 formed by the coiling. For example, the first section 122 and the second section 124 can be coiled along a spiral line.

[0099] On this basis, the density of the winding of the winding 120 is correspondingly adjusted by adjusting the curvature of the arc line, so as to form a first section 122 and a second section 124 with different densities.

[0100] By winding the first section 122 and the second section 124 along an arc line, the process complexity of forming the winding 120 can be reduced, so as to achieve the technical effect of reducing the production cost of the coil disk 100.

[0101] like Figure 4 , Figure 5 , Figure 6 As shown, in some embodiments of the present invention, optionally, the first section 122 is coiled along an arc line; the second section 124 is coiled along a fold line, and / or the second section 124 is coiled along a wavy line.

[0102] In this embodiment, the first section 122 is coiled along an arc, and the axis of the arc coincides with the axis of the coil 1202 formed by the coiling. For example, the first section 122 can be coiled along a spiral line. The second section 124 is coiled along a fold line and / or a wavy line. Specifically, the second section 124 can be coiled along only one of the fold line and the wavy line. The first half of the second section 124 can also be coiled along the fold line, and the second half can be coiled along the wavy line. This embodiment does not impose a rigid limitation on this.

[0103] Compared with a relatively smooth arc, the wavy line and the broken line extend a longer distance when winding around the same angle, thereby extending the transmission path of the current in the second section 124, and correspondingly increasing the internal resistance of the second section 124. After power is turned on, the first section 122 with a smaller internal resistance generates less heat and a smaller amount of infrared radiation. Correspondingly, the electromagnetic field generated by the first section 122 is more stable and has a higher intensity. After power is turned on, the second section 124 with a larger internal resistance generates more heat and a larger amount of infrared radiation. Correspondingly, the shape of the second section 124 is changed by the wavy line or the broken line, and the intensity of the electromagnetic field generated is lower.

[0104] It can be seen that by limiting the shape of the winding path of the winding 120, the distribution ratio of the electromagnetic heating capacity and the infrared heating capacity of different sections of the winding 120 can be adjusted. Specifically, more electromagnetic heating capacity can be distributed through an arc path, and more infrared heating capacity can be distributed through broken lines and wavy lines. In this way, the coil 1202 can take into account both the electromagnetic heating requirements of the magnetic cooking utensils 200 and the infrared heating requirements of the non-magnetic cooking utensils 200, thereby optimizing the structure of the coil disk 100, broadening the heating function of the coil disk 100, improving the practicality of the coil disk 100, and optimizing the user experience.

[0105] At the same time, the coil 1202 wound along the fold line or the wavy line has a strong ability to resist deformation, which can reduce the possibility of the coil 1202 being partially lifted, tilted, or falling out during high-temperature heating.

[0106] Specifically, Figure 4 As shown, a set of windings 120 can be composed of multiple spiral sections, and can be set to a wave shape in the sparsely wound or densely wound areas to enhance anti-lodging and adjust the length of the windings 120 to adjust the impedance and inductance, thereby improving the heating effect.

[0107] like Figure 7 , Figure 8 , Fig. 9 and Fig.13 As shown, in some embodiments of the present invention, optionally, the first section 122 is coiled along a fold line, and / or the first section 122 is coiled along a wavy line; the second section 124 is coiled along a fold line, and / or the second section 124 is coiled along a wavy line.

[0108] In this embodiment, the first section 122 and the second section 124 are both coiled along a wavy line or a folded line, and may be coiled along the wavy line as a whole, coiled along the folded line as a whole, or coiled along the wavy line and the folded line alternately.

[0109] On the basis of setting multiple wave effects on the coil 1202 as a whole, sparse winding and dense winding are superimposed, which can effectively adjust the length of the winding 120 to adjust the impedance and inductive reactance, and meet the effects of resonant heating and infrared heating at the same time. At the same time, the mechanism has better production process, anti-lodging, and adjustment of infrared and electromagnetic cold zone balance.

[0110] like Fig.10 As shown, setting the winding 120 to be wavy can make the part pointed by arrow a form a triangle, thereby increasing the anti-lodging effect of the winding 120;

[0111] like Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, in some embodiments of the utility model, optionally, in the circumferential direction of the coil 1202, the distance between two adjacent bending segments or the distance between two adjacent waves is the circumferential spacing of the coil 1202; the first segment 122 includes a first circumferential spacing, the second segment 124 includes a second circumferential spacing, and the first circumferential spacing is greater than the second circumferential spacing.

[0112] In this embodiment, when the winding 120 is wound along a zigzag line or a wavy line, the coil 1202 also includes a circumferential spacing. Taking the winding 120 along a wavy line as an example, in the circumferential direction of the coil 1202, the distance between adjacent wave crests and wave troughs is the circumferential spacing. Taking the winding 120 along a zigzag line as an example, in the circumferential direction of the coil 1202, the distance between adjacent zigzag line segments is the circumferential spacing. Different from the radial spacing, the circumferential spacing can reflect the density of the winding 120 in the circumferential direction.

[0113] On this basis, the first section 122 includes a first circumferential interval, and the second section 124 includes a second circumferential interval.

[0114] Specifically, Figure 5 As shown, a denser wave is made in the second section 124 of the sparse winding, and the wave is not necessarily symmetrical with the central axis, and the infrared cold zone caused by the sparse winding is covered as much as possible to satisfy the effect of uniform electromagnetic heating and non-attenuation of infrared heating as much as possible.

[0115] like Figure 6 As shown, the sparsely wound second winding 128 can be superimposed with a small equidistant wave shape, which not only maintains the actual Figure 5 The original effect of the coil disk 100 shown is further improved by adding more windings 120 wire lengths, and the superposition of equidistant small waves makes it have better mechanical properties.

[0116] like Figure 3 As shown, in some embodiments of the present invention, optionally, the range of the radial spacing is: greater than or equal to 0.5 mm and less than or equal to 10 mm.

[0117] In this embodiment, Figure 3 X1, X2, and X3 represent radial intervals of different sections. The X value needs to be greater than or equal to 0.5 mm and less than or equal to 10 mm, and can be greater than or equal to 2.5 and less than or equal to 5 mm. By limiting the size range of the radial interval, the manufacturing process of the winding 120 can be simplified and the production cost can be reduced. On the other hand, it is beneficial to improve the heating uniformity of the coil 1202.

[0118] like Fig.11 and Fig.12As shown, in some embodiments of the present invention, optionally, in the center line direction of the wave line, the distance between two adjacent wave peaks is the tooth pitch of the wave line; the range of the tooth pitch is: greater than or equal to 1mm, and less than or equal to 15mm.

[0119] In a direction perpendicular to the center line of the wave line, the maximum value of the distance between adjacent wave crests and wave troughs is the tooth height of the wave line; the range of the tooth height is: greater than or equal to 0.5 mm and less than or equal to 10 mm.

[0120] In this embodiment, the height between the crest and the trough of the wave line is the tooth height H, and the distance between the first crest and the second crest is the tooth pitch L; wherein H needs to be greater than or equal to 0.5 mm and less than or equal to 10 mm, and can be specifically selected to be greater than or equal to 1 mm and less than or equal to 2 mm, and L needs to be greater than or equal to 1 mm and less than or equal to 15 mm, and can be specifically selected to be greater than or equal to 3.5 mm and less than or equal to 6.5 mm.

[0121] The values ​​of the tooth height H and the tooth pitch L may be equal in the entire coil 1202, or may be gradually enlarged or alternating in size.

[0122] The preferred method is to use coil 1202 with uniform waves, which is more in line with low-cost production processes and has better electrical performance. The principle is that the pitch and center distance of the wave wheel that suppresses the waves are fixed, which is more stable in production. The uniform wave shape is more balanced in force after heating, which is manifested in that it is not easy to deform when heated, the heating area is uniform, and the heating uniformity is better.

[0123] like Fig.16 and Fig.17 As shown, in some embodiments of the present invention, optionally, the winding 120 includes: a first winding 126, the size of the first winding 126 in the radial direction of the coil 1202 is a first thickness T1, the size of the first winding 126 in the axial direction of the coil 1202 is a first width W1; the first width is greater than the first thickness; the ratio of the first width to the first thickness is greater than or equal to 2.

[0124] In this embodiment, the winding 120 includes a first winding 126, which is processed into a spiral first winding 126 through a sheet-like substrate. Specifically, the first winding 126 is cut through a plane perpendicular to the extension trajectory of the first winding 126 to obtain a first cross section. The dimension of the first cross section in the radial direction of the coil 1202 is a first thickness, and the dimension in the axial direction of the coil 1202 is a first width, wherein the first width is greater than the first thickness. After assembly, the wide side of the strip-shaped first winding 126 encloses the gaps between the coil layers, and the narrow side of the strip-shaped first winding 126 contacts the heat insulation component 110.

[0125] During the assembly process, the strip-shaped first winding 126 is erected on the heat insulation component 110 .

[0126] The first winding 126 can reduce the contact area between the first winding 126 and the thermal insulation component 110 through narrow edge contact, thereby reducing the heat transferred to the thermal insulation component 110 and lowering the operating temperature of the thermal insulation component 110.

[0127] Meanwhile, the strip-shaped first winding 126 can be rolled into a bundle during transportation, which can reduce transportation difficulty and transportation cost.

[0128] The ratio of the first width to the first thickness is greater than or equal to 2, so as to ensure that the first winding 126 has a wide surface with a sufficient area, thereby increasing the heat radiation of the first winding 126 .

[0129] like Fig.16 and Fig.17 As shown, in some embodiments of the present invention, optionally, the first thickness T1 is in the range of: greater than or equal to 0.1 mm, and less than or equal to 0.4 mm.

[0130] Specifically, by limiting the first thickness to be greater than or equal to 0.1 mm, it can be ensured that the first winding 126 has a certain bending resistance in the axial direction, thereby reducing the possibility of the first winding 126 warping or even breaking.

[0131] By limiting the first thickness to be less than or equal to 0.4 mm, the internal resistance of the first winding 126 can be limited by limiting the cross-sectional area, so as to accurately allocate the electromagnetic heating capacity and thermal radiation heating capacity of the first winding 126 to avoid excessive encroachment of the thermal radiation heating capacity on the electromagnetic heating capacity.

[0132] Specifically, the first width is selected to be greater than 1 mm.

[0133] like Fig.18 and Fig.19 As shown, in some embodiments of the present invention, optionally, the winding 120 also includes: a second winding 128, the second winding 128 has a second width W2 in the radial direction of the coil 1202, and a second thickness T2 in the axial direction of the coil 1202; the second width is greater than the second thickness; the ratio of the second width to the second thickness is greater than or equal to 2.

[0134] In this embodiment, the winding 120 includes a second winding 128 , and the second winding 128 is wound in a spiral shape by using a ribbon-shaped base material.

[0135] Specifically, the second cross section can be obtained by cutting the second winding 128 with a plane perpendicular to the extension track of the second winding 128. The dimension of the second cross section in the radial direction of the coil 1202 is the second width, and the dimension in the axial direction of the coil 1202 is the second thickness, wherein the second thickness is smaller than the second width. After assembly, the narrow side of the sheet-shaped second winding 128 encloses the gaps between the coil layers, and the wide side of the strip-shaped second winding 128 contacts the heat insulation component 110.

[0136] During the assembly process, the sheet-shaped second winding 128 is laid flat on the heat insulation component 110 .

[0137] By limiting the width of the second winding 128 to be greater than the thickness, the second winding 128 can have a strong anti-deformation ability in the radial direction while retaining the shape of the winding 120, so that the second winding 128 on the heat insulation component 110 can be kept in a spiral shape without the help of other structures, and the heating effect of the coil disk 100 is prevented from being affected by the uncontrollable deformation of the second winding 128. In this way, the technical effect of improving the structural strength of the second winding 128 and improving the heating reliability of the coil disk 100 is achieved.

[0138] The ratio of the second width to the second thickness is greater than or equal to 2, so as to ensure that the second winding 128 has a wide surface with a sufficient area, thereby increasing the heat radiation of the second winding 128 .

[0139] Specifically, the sheet-like substrate can be processed into the spiral second winding 128 by mechanical processing, and specifically, mechanical processing methods such as wire cutting, laser cutting, and punching can be used.

[0140] The sheet-like substrate can also be chemically etched into a spiral shape by an etching solution.

[0141] like Fig.18 and Fig.19 As shown, in some embodiments of the present invention, optionally, the second thickness T2 is in the range of: greater than or equal to 0.1 mm, and less than or equal to 0.4 mm.

[0142] In this embodiment, a value range of the second thickness of the second winding 128 is limited.

[0143] Specifically, by limiting the second thickness to be greater than or equal to 0.1 mm, it can be ensured that the second winding 128 has a certain bending resistance in the radial direction, reducing the possibility of thermal deformation of the second winding 128, so that the second winding 128 can maintain a spiral shape.

[0144] By limiting the second thickness to be less than or equal to 0.4 mm, on the one hand, the internal resistance of the second winding 128 can be limited by limiting the cross-sectional area, and on the other hand, the second winding 128 can be more conveniently rolled into a bundle, providing convenient conditions for the lightweight design of the second winding 128.

[0145] Specifically, the second width is selected to be greater than 1 mm.

[0146] like Fig. 20 , Fig.21 , Fig. 22 and Fig.23 As shown, in some embodiments of the present invention, optionally, the cross-sectional shape of the winding 120 includes: a rectangle, a trapezoid, a parallelogram or a racetrack.

[0147] Fig. 20 In FIG. 1 , the cross-section of the winding is rectangular, wherein (1) corresponds to the first winding 126 , and (2) corresponds to the second winding 128 .

[0148] Fig.21 In the figure, (1), (2), (3) and (4) correspond to four different trapezoidal cross sections.

[0149] Fig. 22 In FIG. 1 , the cross-section of the winding is a parallelogram, wherein (1) corresponds to the first winding 126 , and (2) corresponds to the second winding 128 .

[0150] Fig.23 In the figure, the cross section of the winding is in a racetrack shape, wherein (1) corresponds to the first winding 126 and (2) corresponds to the second winding 128.

[0151] In this embodiment, Fig. 20 Two rectangular cross sections of windings 120 are shown.

[0152] Fig.21 4 trapezoidal cross sections of windings 120 are shown.

[0153] Fig. 22 2 shows two parallelogram-shaped cross sections of the winding 120 .

[0154] Fig.23 Two racetrack-shaped cross sections of windings 120 are shown.

[0155] In some embodiments of the present invention, optionally, the resistance of the winding 120 is in the range of: greater than or equal to 0.3Ω and less than or equal to 0.7Ω.

[0156] In this embodiment, by limiting the resistance of the winding 120 to a range of greater than or equal to 0.3Ω and less than or equal to 0.7Ω, it can be ensured that the winding 120 can take into account both the electromagnetic heating function and the thermal radiation heating function, so that the wound coil 1202 can be adapted to cooking utensils 200 of different materials, thereby achieving the technical effect of improving the application range of the coil disk 100 and improving the practicality of the coil disk 100.

[0157] Specifically, the resistance of the winding can be selected as: 0.4Ω, 0.45Ω, 0.5Ω, 0.55Ω, 0.6Ω, 0.65Ω, and the corresponding resistance value can be selected according to the pre-designed distribution ratio of the electromagnetic heating capacity and the thermal radiation heating capacity.

[0158] Specifically, the above resistance values ​​are the results of measurements at an ambient temperature of 20°C.

[0159] like Fig.28 , Fig.29 and Fig.30 As shown, in some embodiments of the present invention, optionally, the coil disk 100 further includes: a supporting component 130 connected to the thermal insulation component 110 ; and a magnetic component 140 disposed on a side of the supporting component 130 facing away from the thermal insulation component 110 .

[0160] Fig.30 The arrow a shows the direction of heat transfer.

[0161] In this embodiment, the coil disk 100 further includes a support component 130 and a magnetic member 140. The support component 130 is connected to the heat insulating component 110, and the support component 130 can provide support and protection for the heat insulating component 110 and the winding 120. After power is turned on, the heat radiation generated by the coil 1202 is blocked by the heat insulating component 110 to reduce the working temperature of the support component 130 and prevent the support component 130 from melting at high temperature.

[0162] On this basis, the coil disk 100 further includes a magnetic member 140, which is disposed on the side of the support component 130 facing away from the coil 1202. By providing the magnetic member 140, the distribution of the electromagnetic field on the side of the coil 1202 facing away from the cooking utensil 200 can be changed, so that the electromagnetic field generated by the coil 1202 can be concentrated on the side where the cooking utensil 200 is located, so as to centrally heat the cooking utensil 200, thereby achieving the technical effect of improving the electromagnetic heating efficiency and electromagnetic heating energy efficiency.

[0163] Specifically, Fig.14 and Fig.15As shown, the winding 120 is partially set to be wavy or zigzag, and specifically, the wavy shape can be set at the bend, which can effectively reduce the heating and lodging phenomenon caused by the different inner and outer radii of the bend. It can also adjust the length of the winding 120 to adjust the impedance and inductive reactance to simultaneously meet the effects of resonant heating and infrared heating.

[0164] Specifically, Fig.24 , Fig.25 , Fig.26 and Fig. 27 As shown, the outline shapes of the coil 1202 formed by spirally winding the winding 120 include: polygonal, elliptical, and petal-shaped.

[0165] like Fig.28 and Fig.29 As shown, in some embodiments of the present invention, optionally, the magnetic member 140 is in a strip shape, and the length direction of the magnetic member 140 is consistent with the radial direction of the coil 1202 .

[0166] In this embodiment, the support component 130 includes a bottom wall and side walls, and the side walls surround the bottom wall. The bottom wall and the side walls enclose an installation groove. After assembly, the thermal insulation component 110 and the magnetic component 140 are located inside the installation groove, and the surrounding side walls can provide shielding and protection for the magnetic component 140, the thermal insulation component 110 and the winding 120.

[0167] Specifically, a groove is provided on the bottom wall of the supporting component 130 , the shape of the groove matches the shape of the magnetic component 140 , and the magnetic component 140 is embedded in the groove to reduce the possibility of the magnetic component 140 being misplaced or even falling off.

[0168] In some embodiments of the present invention, a cooking device is proposed, and the cooking device includes the coil disk 100 in any of the above embodiments. Therefore, the cooking device has the advantages of the coil disk 100 in any of the above embodiments, and can achieve the technical effects that can be achieved by the coil disk 100 in any of the above embodiments. To avoid repetition, it will not be described here.

[0169] On this basis, the cooking device further comprises a body, on which the coil disk 100 is arranged, and the body is used to provide positioning, support and protection for the coil disk 100 .

[0170] It should be clarified that in the claims, specification and drawings of the present invention, the term "multiple" refers to two or more than two. Unless otherwise clearly defined, the orientation or position relationship indicated by the terms "upper" and "lower" is based on the orientation or position relationship shown in the drawings, which is only for the purpose of more conveniently describing the present invention and making the description process easier, rather than indicating or implying that the device or element referred to must have the specific orientation described, be constructed and operated in a specific orientation, so these descriptions cannot be understood as limitations on the present invention; the terms "connect", "install", "fix" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection between multiple objects, or a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood based on the specific circumstances of the above data.

[0171] In the claims, specification and drawings of the present invention, the description of the terms "one embodiment", "some embodiments", "specific embodiments" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the claims, specification and drawings of the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0172] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A coil disk, characterized in that: include: Thermal insulation components; A winding is provided on the heat-insulating component, the winding is spirally wound on the heat-insulating component to form a coil, and in the radial direction of the coil, the coil includes a plurality of coil layers; Wherein, the distance between two adjacent coil layers is the radial spacing of the coil, and the coil includes a plurality of the radial spacings; Among the plurality of radial intervals, at least one radial interval is different from the other radial intervals.

2. The coil disk according to claim 1, characterized in that The winding comprises a first section and a second section, wherein the first section and the second section are connected in series; The first section includes a plurality of first ring layers, and the distance between two adjacent first ring layers is a first radial interval; The second section includes a plurality of second ring layers, and the distance between two adjacent second ring layers is a second radial interval; Wherein, the second radial interval is greater than the first radial interval.

3. The coil disk according to claim 2, characterized in that The number of the first sections is N+1, the number of the second sections is N, and N is an integer greater than or equal to 1; In the extension direction of the winding, N+1 first segments and N second segments are alternately connected in series.

4. The coil disk according to claim 2, characterized in that The first section and the second section are wound along an arc.

5. The coil disk according to claim 2, characterized in that The first section is coiled along an arc; The second section is coiled along a fold line, and / or the second section is coiled along a wavy line.

6. The coil disk according to claim 2, characterized in that The first section is coiled along a fold line, and / or the first section is coiled along a wavy line; The second section is coiled along a fold line, and / or the second section is coiled along a wavy line.

7. The coil disk according to claim 6, characterized in that In the circumferential direction of the coil, the distance between two adjacent bending segments or the distance between two adjacent waves is the circumferential spacing of the coil; The first section includes a first circumferential spacing, and the second section includes a second circumferential spacing, and the first circumferential spacing is greater than the second circumferential spacing.

8. The coil disk according to claim 2, characterized in that The range of the radial spacing is: greater than or equal to 0.5 mm and less than or equal to 10 mm.

9. The coil disk according to claim 5 or 6, characterized in that: In the midline direction of the wave line, the distance between two adjacent wave crests is the tooth pitch of the wave line; The range of the tooth pitch is: greater than or equal to 1 mm and less than or equal to 15 mm.

10. The coil disk according to claim 5 or 6, characterized in that: In a direction perpendicular to the midline of the wave line, the maximum value of the distance between adjacent wave crests and wave troughs is the tooth height of the wave line; The range of the tooth height is: greater than or equal to 0.5 mm and less than or equal to 10 mm.

11. The coil disk according to any one of claims 1 to 8, characterized in that The winding comprises: A first winding, wherein a dimension of the first winding in a radial direction of the coil is a first thickness, and a dimension of the first winding in an axial direction of the coil is a first width; The first width is greater than the first thickness; A ratio of the first width to the first thickness is greater than or equal to 2.

12. The coil disk according to claim 11, characterized in that The first thickness ranges from greater than or equal to 0.1 mm to less than or equal to 0.4 mm.

13. The coil disk according to any one of claims 1 to 8, characterized in that The winding further comprises: a second winding, wherein the dimension of the second winding in the radial direction of the coil is a second width, and the dimension of the second winding in the axial direction of the coil is a second thickness; The second width is greater than the second thickness; A ratio of the second width to the second thickness is greater than or equal to 2.

14. The coil disk according to claim 13, characterized in that The second thickness ranges from greater than or equal to 0.1 mm to less than or equal to 0.4 mm.

15. The coil disk according to any one of claims 1 to 8, characterized in that The cross-sectional shape of the winding includes: rectangle, trapezoid, parallelogram or racetrack.

16. The coil disk according to any one of claims 1 to 8, characterized in that The resistance of the winding is in the range of: greater than or equal to 0.3Ω and less than or equal to 0.7Ω.

17. The coil disk according to any one of claims 1 to 8, characterized in that Also includes: A supporting component connected to the thermal insulation component; The magnetic component is arranged on a side of the supporting component facing away from the heat insulating component.

18. The coil disk according to claim 17, characterized in that The magnetic member is in a strip shape, and the length direction of the magnetic member is consistent with the radial direction of the coil.

19. A cooking device, characterized in that: include: ontology; The coil disk according to any one of claims 1 to 18, arranged on the body.

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