Coil disk assembly and electromagnetic heating device

Abstract

Disclosed in the present application are a coil disk assembly and an electromagnetic heating device. The coil disk assembly comprises a frame and a plurality of winding groups, wherein a plurality of mounting areas are formed on the frame, and the plurality of winding groups are arranged corresponding to the plurality of mounting areas; at least one winding group is configured as a first winding group, which comprises a plurality of winding units, the plurality of winding units being distributed along the periphery of the mounting area; the directions of electric current of every two adjacent winding units are arranged to be opposite, such that said two adjacent winding units form opposite magnetic poles.

Description

Coil panel assembly and electromagnetic heating device

[0001] Related applications

[0002] The present application claims priority to Chinese patent application No. 202422409234.3, filed on September 30, 2024, the entire contents of which are incorporated herein by reference.

[0003] TECHNICAL FIELD

[0004] The present application relates to the technical field of electromagnetic heating, in particular to a coil panel assembly and an electromagnetic heating device. BACKGROUND

[0005] The existing full-area electromagnetic stove is composed of multiple small coil panels. When a pot is placed on the coil panel, the pot will cover several coil panels. Only the coil panels that are covered or partially covered will work, so that heating can be achieved in the area of the coil panel, and heating can be achieved at any position. However, the existing multi-group small coil panel full-area electromagnetic stove has the following disadvantages. As shown in FIG. 1, the magnetic pole directions of the small-size combined coil panels are all set in the same direction, so that the magnetic fields of the adjacent magnetic poles repel each other, resulting in compression of the distribution of the magnetic field in the vertical direction (i.e., the height direction), and the height of the magnetic field is reduced due to the repulsion. Therefore, the existing small-size combined coil panel still performs planar heating when heating, and cannot achieve three-dimensional heating of the pot wall. SUMMARY

[0006] The main purpose of the present application is to provide a coil panel assembly and an electromagnetic heating device, which can achieve pot wall heating for small pots.

[0007] To achieve the above-mentioned purpose, the present application provides a coil panel assembly, which comprises:

[0008] a support, a plurality of mounting areas are formed on the support; and

[0009] a plurality of winding groups are provided corresponding to the plurality of mounting areas, at least one winding group is provided as a first winding group, the first winding group comprises a plurality of winding units, the plurality of winding units are distributed along the circumference of the mounting area, and two adjacent winding units are provided with opposite current directions, so that the two adjacent winding units form opposite magnetic poles.

[0010] In an embodiment, the plurality of mounting areas are arranged in a matrix; or

[0011] The plurality of mounting areas are arranged along a ring.

[0012] In an embodiment, the mounting area is provided in a square shape; or

[0013] The mounting area is circularly arranged.

[0014] In an embodiment, the plurality of mounting areas are adjacently arranged.

[0015] In an embodiment, at least part of the winding units in two winding groups on two adjacent mounting areas are adjacently arranged.

[0016] In an embodiment, the plurality of mounting areas form a combined mounting area.

[0017] In an embodiment, part of the winding units in the plurality of winding groups are distributed along the circumference of the combined mounting area to form a winding hybrid group, in which two adjacent winding units are arranged in opposite current directions, so that the two adjacent winding units form opposite magnetic poles.

[0018] In an embodiment, the number of winding units in the winding hybrid group is an even number greater than or equal to 4.

[0019] In an embodiment, the number of winding units in the winding group is an even number greater than or equal to 4.

[0020] In an embodiment, the plurality of winding groups have a first side and a second side, the first side is arranged to correspond to a heating appliance to be arranged.

[0021] The coil disc assembly further comprises at least one magnet structure arranged corresponding to at least one winding group, the magnet structure is located on the second side of the winding group, the magnet structure comprises a first magnet part, the first magnet part comprises:

[0022] Two magnetic end parts arranged corresponding to the central regions of two adjacent winding units; and,

[0023] An intermediate part extending from one of the magnetic end parts to the other magnetic end part.

[0024] In an embodiment, the two magnetic end parts and the intermediate part are integrally arranged.

[0025] In an embodiment, at least one of the magnetic end parts is provided with a magnetic protrusion extending towards the first side of the winding unit.

[0026] In an embodiment, in the first winding group, at least one winding unit is arranged in a ring shape, which has a first winding ring segment close to the center of the mounting area and a second winding ring segment close to the circumference of the mounting area, the width of at least part of the first winding ring segment is d1, the width of at least part of the second winding ring segment is d2, d1 is greater than d2.

[0027] In an embodiment, in the first winding group, at least one winding unit is arranged in a ring shape, having a first winding ring segment close to the center of the mounting area and a second winding ring segment close to the periphery of the mounting area, and the winding center of the winding unit is located on the side close to the second winding ring segment.

[0028] The application also provides an electromagnetic heating device, comprising:

[0029] a panel, on which a plurality of heating areas are arranged; and

[0030] a coil disc assembly, wherein the plurality of mounting areas correspond to the plurality of heating areas.

[0031] In the technical scheme provided by the application, the coil disc assembly comprises a support and a plurality of winding groups, the support is formed with a plurality of mounting areas, a plurality of winding groups are arranged corresponding to the plurality of mounting areas, at least one winding group is arranged as a first winding group, the first winding group comprises a plurality of winding units, the plurality of winding units are distributed along the periphery of the mounting area, and two adjacent winding units are arranged with opposite current directions, so that the two adjacent winding units form opposite magnetic poles.

[0032] In the technical scheme provided by the application, the coil disc assembly comprises a support and a plurality of winding groups, the support is formed with a plurality of mounting areas, a plurality of winding groups are arranged corresponding to the plurality of mounting areas, at least one winding group is arranged as a first winding group, the first winding group comprises a plurality of winding units, the plurality of winding units are distributed along the periphery of the mounting area, and two adjacent winding units are arranged with opposite current directions, so that the two adjacent winding units form opposite magnetic poles.

[0033] The plurality of winding units of the first winding group are distributed along the periphery of the mounting area, and two adjacent winding units are arranged with opposite current directions, so that the two adjacent winding units form opposite magnetic poles. In the two adjacent winding units, the magnetic induction lines are extended from the magnetic pole formed by one winding unit to the magnetic pole formed by the other winding unit. Therefore, the magnetic induction lines from one magnetic pole need to be extended to a higher position on the side of the corresponding mounting area, and then reach the other magnetic pole, thereby generating a three-dimensional magnetic field to heat the pot wall of a small pot located thereon. This solves the problem that the existing electromagnetic cooker cannot realize three-dimensional heating of the pot wall of a small pot. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical scheme in the embodiments of the application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0035] FIG. 1 is a schematic diagram of the magnetic field distribution of two winding units with the same current direction in the prior art;

[0036] Fig. 2 is a structural schematic diagram of an embodiment of the coil disc assembly provided by the present application;

[0037] Fig. 3 is an exploded structural schematic diagram of the coil disc assembly in Fig. 2;

[0038] Fig. 4 is a magnetic field distribution schematic diagram of two winding units in Fig. 2 being arranged reversely in current;

[0039] Fig. 5 is a structural schematic diagram of the magnet structure and the winding group in Fig. 2;

[0040] Fig. 6 is a structural schematic diagram of an embodiment of the winding group in Fig. 2;

[0041] Fig. 7 is a structural schematic diagram of another embodiment of the winding group provided by the present application;

[0042] Fig. 8 is a structural schematic diagram of still another embodiment of the winding group provided by the present application;

[0043] Fig. 9 is a structural schematic diagram of another embodiment of the winding unit provided by the present application.

[0044] Explanation of reference numerals:

[0045] 100, coil disc assembly;

[0046] 1, support; 11, mounting area;

[0047] 2, winding group; 21, first winding group; 211, winding unit; 2111, first winding ring segment; 2112, second winding ring segment;

[0048] 3, magnet structure; 31, first magnet part; 311, magnetic end part; 312, middle part; 313, magnetic convex part; 32, second magnet part.

[0049] The realization, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. Embodiments of the present application

[0050] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0051] It should be noted that if the embodiments of the present application involve directionality indication (such as up, down, left, right, front, back, etc.), the directionality indication is only used to explain the relative position relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directionality indication also changes accordingly.

[0052] In addition, if the embodiments of the present application involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed by the present application.

[0053] The existing full-area electromagnetic stove is composed of multiple small coil discs inserted into the space. When the pot is placed on the coil disc, the pot will cover several coil discs, and only the coil discs covered or partially covered will work, so that heating can be realized in the area of the coil disc, and heating can be realized at any position. However, the existing multi-group small coil disc full-area electromagnetic stove has the following shortcomings: as shown in FIG. 1, the magnetic pole directions of the small size combined coil discs are all set in the same direction, so that the magnetic fields with the same magnetic poles of adjacent coil discs repel each other, resulting in that the distribution of the magnetic field in the vertical direction (i.e. the height direction) is compressed, and the height of the magnetic field is reduced due to the repulsion. Therefore, the existing small size combined coil disc still performs planar heating, and cannot realize three-dimensional heating of the pot wall.

[0054] In order to solve the technical problem, the coil disc assembly 100 is provided to solve the problem that the existing electromagnetic stove cannot realize three-dimensional heating of the pot wall.

[0055] Referring to FIGS. 2 to 4, the coil disc assembly 100 provided by the present application includes a support 1 and multiple winding groups 2. The support 1 is formed with multiple mounting areas 11; the multiple winding groups 2 are arranged corresponding to the multiple mounting areas 11, at least one winding group 2 is arranged as a first winding group 21, the first winding group 21 includes multiple winding units 211, the multiple winding units 211 are distributed along the periphery of the mounting area 11, and two adjacent winding units 211 are arranged with opposite current directions, so that the two adjacent winding units 211 form opposite magnetic poles.

[0056] The present application provides a plurality of installation areas 11, and a plurality of winding groups 2 corresponding to the plurality of installation areas 11. In this way, a plurality of small pots can be placed in the plurality of installation areas 11, so that the corresponding winding groups 2 heat them. Alternatively, one small pot can be placed in different installation areas 11, so that the corresponding winding groups 2 heat it. Of course, one large pot can also be placed in a plurality of installation areas 11, so that a plurality of winding groups 2 heat it.

[0057] The "at least one winding group 2 is set as a first winding group 21" can be that only one winding group 2 is set as the first winding group 21, or a plurality of winding groups 2 are set as the first winding group 21, or all winding groups 2 are set as the first winding group 21. The specific setting is determined according to actual needs.

[0058] In the two adjacent winding units 211, the magnetic induction lines extend from the magnetic pole formed in one winding unit 211 to the magnetic pole formed in the other winding unit 211. Therefore, the magnetic induction lines from one magnetic pole need to extend to a higher position on the side of the corresponding installation area 11, and then reach the other magnetic pole, so as to generate a three-dimensional magnetic field to heat the pot wall of the small pot located thereon. This solves the problem that the existing electromagnetic cooker cannot realize three-dimensional heating of the pot wall of the small pot.

[0059] It should be noted that the purpose of the existing technology of the partition electromagnetic cooker is to meet the diversified cooking needs, and to realize independent control of different areas on the same cooker. Small size coils can better adapt to such multi-area layout, so that each cooking area can work independently and without interference. In principle, the smaller the size of the coil, the higher the control accuracy. Therefore, different sizes and types of pots can be placed on different cooking areas according to needs, to realize simultaneous cooking of multiple foods.

[0060] However, in a small size coil disc, the current flows in the wire to form a closed loop, thereby generating a magnetic field surrounding the coil. Since the coil is planar, the magnetic field is mainly concentrated on both sides of the coil, i.e. in the direction perpendicular to the plane of the coil. The geometry of the small size coil disc (usually flat circular or rectangular) further exacerbates the phenomenon of magnetic field concentration on both sides. This flat geometry causes the magnetic field to superimpose in the direction perpendicular to the plane of the coil, so that the magnetic field is mainly concentrated in the pot bottom plane, making it difficult to effectively wrap the pot wall. If the strength of the magnetic field is increased by increasing the current, on the one hand, the heating intensity of the pot bottom will increase, leading to uneven heating, and on the other hand, multiple same direction currents will further increase the superimposed magnetic field, thereby further increasing the radiation of the external environment.

[0061] It can be understood that in the two adjacent winding units 211, the magnetic induction lines are extended from the magnetic pole formed by one of the winding units 211 to the magnetic pole formed by the other winding unit 211. Therefore, the magnetic induction lines from one magnetic pole need to extend to a higher position on the side of the corresponding mounting area 11, and then reach the other magnetic pole. The coupled magnetic fields are enhanced in the direction perpendicular to the connection line of the magnetic poles (i.e., the heating capacity of the pot is enhanced), and are cancelled in the direction of the connection line of the magnetic poles. For the environment on the side of the mounting area 11, the operator or other objects are located on the side of the mounting area 11, and the cancellation effect helps to reduce the radiation of the magnetic field to the environment, the operator or other objects in the horizontal direction of the mounting area 11. At the same time, for the winding unit 211, the radiation to the external environment is reduced, which means that more energy is effectively used to heat the pot instead of being dissipated to the environment, thereby improving the overall energy efficiency.

[0062] It can be understood that the shapes of the winding units 211 in the plurality of winding units 211 described in the present application can be the same or different. Each winding unit 211 is formed by winding a plurality of turns. Each turn in each winding unit 211 can be regarded as a ring structure. Of course, the ring structure is not limited to a circular shape. It can also be square or elliptical. Each winding unit 211 can be laid along a surface area, which can be a flat surface or a curved surface. Each winding unit 211 can also be bent. The specific arrangement can be determined according to the actual situation, and the present application does not limit the embodiments.

[0063] It can be understood that the "opposite current directions" described in the present application refer to the current directions of the winding units 211 in the clockwise or counterclockwise direction. That is, when the current direction of one winding unit 211 is clockwise, the current direction of the other winding unit 211 is counterclockwise.

[0064] Please refer to FIGS. 6 to 8. In an embodiment, the plurality of mounting areas 11 are arranged in a matrix, or the plurality of mounting areas 11 are arranged along a circumference.

[0065] It can be understood that the "matrix arrangement" described in the present application refers to arranging the plurality of mounting areas 11 in the form of rows and columns, and the included angle between the rows and the columns is not particularly limited to form a parallelogram arrangement. In this way, the mounting areas 11 can fully occupy the area of the support 1, thereby providing more heating areas and improving work efficiency.

[0066] The "circumferential arrangement" in the present application refers to arranging a plurality of installation areas 11 around a center point in a circular or elliptical manner. In this way, the middle part of the support 1 can be hollowed out, so that the cook can control the pots on the plurality of installation areas 11 at the same time when located in the middle part of the support 1, thereby improving work efficiency.

[0067] In an embodiment, the installation area 11 is square in shape; or the installation area 11 is circular in shape.

[0068] It can be understood that the installation area 11 can be rectangular, square, polygonal, circular, or elliptical in shape, which is selected to match the shape of the pot above. There is no particular limitation here. When there are a plurality of installation areas 11, the plurality of installation areas 11 can be arranged the same or differently. By arranging the same, all installation areas 11 have the same heating capacity and characteristics, so that the pot placed in any installation area 11 can obtain the same heating effect, improving the convenience of use. At the same time, because all installation areas 11 use the same technology and components, maintenance and replacement of parts are more simple and convenient; by arranging differently, the size and shape of the overall heating area can be adjusted according to the size and shape of different pots, which can more efficiently utilize energy. At the same time, different shapes of installation areas 11 can be combined to simultaneously adapt to multiple pots to meet different cooking needs. In addition, it is worth mentioning that when the pot shell is an irregular polygonal curve or an irregular variable arc line, the heating area can be calculated according to the actual needs so that the installation area 11 can cover the pot to be heated.

[0069] In an embodiment, as shown in FIG. 8, the plurality of installation areas 11 are arranged adjacent to each other; in the two winding groups 2 on the two adjacent installation areas 11, at least part of the winding units 211 are arranged in common, as shown in FIG. 8, two common winding groups 2 are indicated by a dashed line box.

[0070] It can be understood that the number of winding units 211 that are arranged in common can be one or more, and the winding units 211 that are arranged in common can be shared by at least two installation areas 11. There is no particular limitation here. By sharing the winding units 211, the number of winding units 211 can be reduced, and the waste of materials can be reduced. Because the common winding units 211 can be reused by multiple installation areas 11, the material cost is reduced. The space layout between adjacent installation areas 11 can be more compact, reducing the overall volume and occupied space, and improving the space utilization of the support 1.

[0071] In an embodiment, the plurality of installation areas 11 forms a combined installation area, and the winding units 211 in the plurality of winding groups 2 are distributed along the circumference of the combined installation area to form a winding mixed group, in which two adjacent winding units 211 are arranged in opposite current directions so that the two adjacent winding units 211 form opposite magnetic poles.

[0072] It can be understood that the plurality of installation areas 11 forms a combined installation area, and the winding units 211 in the plurality of winding groups 2 are distributed along the circumference of the combined installation area to form a winding mixed group, in which two adjacent winding units 211 are arranged in opposite current directions so that the two adjacent winding units 211 form opposite magnetic poles, so that when a large pot is placed on the combined installation area, the pot wall of the large pot can be heated.

[0073] In an embodiment, the number of winding units 211 in the winding mixed group is an even number greater than or equal to 4.

[0074] It can be understood that at least 4 even number of winding units 211 can make each winding unit 211 at the circumference of the combined installation area opposite to the current direction of the adjacent winding unit 211. The formed combined installation area can generate a three-dimensional magnetic field at the circumference, and the pot wall of the pot located thereon is uniformly heated. Such arrangement also makes the magnetic field cancel out at the circumferential side of the combined installation area, reducing radiation to the outside.

[0075] In an embodiment, the number of winding units 211 in the winding group 2 is an even number greater than or equal to 4.

[0076] It can be understood that at least 4 even number of winding units 211 can make each winding unit 211 at the circumference of the installation area 11 opposite to the current direction of the adjacent winding unit 211. The formed installation area 11 can generate a three-dimensional magnetic field at the circumference, and the pot wall of the pot located thereon is uniformly heated. Such arrangement also makes the magnetic field cancel out at the circumferential side of the installation area 11, reducing radiation to the outside.

[0077] It is worth mentioning that when the current direction of any winding unit 211 in all installation areas 11 is opposite to that of its adjacent winding unit 211, and the current setting direction of the winding unit 211 at the edge of all installation areas 11 is opposite to that of the winding unit 211 at the edge of the adjacent installation area 11, a whole heating area can be formed, in which when a pot needs to be heated, the heating of the pot can be achieved even if deviating from the corresponding installation area 11, and the heating effect can be kept consistent. Or, when a pot needs to be heated, not only the corresponding winding unit 211 in the installation area 11 can be turned on for heating, but also the winding units 211 adjacent to the installation area 11 can be turned on, so as to couple with the winding units 211 at the edge of the installation area 11 to generate a stronger three-dimensional magnetic field, thereby increasing the heating intensity of the pot wall of the pot.

[0078] Referring to FIGS. 2, 3 and 5, in an embodiment, the plurality of winding groups 2 has a first side and a second side, the first side being configured to correspond to the utensil to be heated; the coil disc assembly 100 further comprises at least one magnet structure 3 corresponding to at least one winding group 2, the magnet structure 3 being located on the second side of the winding group 2, the magnet structure 3 comprising a first magnet portion 31, the first magnet portion 31 comprising two magnetic end portions 311 and an intermediate portion 312. The two magnetic end portions 311 are configured to correspond to the central regions of two adjacent winding units 211; the intermediate portion 312 extends from one magnetic end portion 311 to the other magnetic end portion 311.

[0079] It can be understood that the magnetic end portions 311 concentrate the magnetic field lines on the first side of the winding group 2. This magnetic field concentration effect helps to improve the coupling efficiency of the pot, thereby achieving more efficient energy transmission and heating. The magnetic end portions 311 are configured to optimize the magnetic flux path. By reducing unnecessary magnetic resistance and leakage phenomena, the magnetic flux can flow more smoothly through the magnet structure, thereby enhancing the magnetic field strength of the heating area, helping to reduce energy loss, improve heating efficiency, and ensure that the magnetic field distribution of the heating area is more uniform. The intermediate portion 312 serves as a bridge connecting the two magnetic end portions 311, ensuring the continuity of the magnetic field. In the magnet structure, the magnetic field lines start from one magnetic end portion 311 and finally reach the other magnetic end portion 311. This continuity is conducive to maintaining the stability of the magnetic field in the whole heating area.

[0080] In an embodiment, the two magnetic end portions 311 and the intermediate portion 312 are integrally provided.

[0081] It can be understood that, since two different magnetic poles can be formed at the two ends of a magnet, each magnetic pole corresponds to the middle part of a corresponding winding unit 211, and since the magnetic poles formed by the middle parts of the two winding units 211 of a pair of winding units 211 are arranged differently on the same side, the strength of the magnetic field of the two winding units 211 can be enhanced by arranging only one magnet, so as to reduce the number of parts as much as possible.

[0082] In an embodiment, at least one of the magnetic end parts 311 is provided with a magnetic protrusion 313 extending towards the first side of the winding unit 211.

[0083] It can be understood that, by the magnetic protrusion 313, the magnetic field can be guided to concentrate on the center of the winding unit 211, further increasing the magnetic field strength of the winding unit 211, and more conducive to achieving the effect of three-dimensional heating.

[0084] In addition, it is worth mentioning that the size, shape and arrangement of the magnetic protrusion 313 can be set according to actual needs to optimize the distribution of the magnetic field in the heating area.

[0085] In an embodiment, the magnet structure 3 further comprises a second magnet part 32 corresponding to the arrangement of the winding unit 211.

[0086] It can be understood that, by arranging the second magnet part 32 with good magnetic conductivity, the magnetic force lines can be concentrated, and the heating power and efficiency of the coil disc assembly 100 can be improved. At the same time, the electronic components arranged on the second side of the winding group 2 can be shielded from the magnetic field of the coil, so as to ensure the reliability of the electronic components. When the electromagnetic oven with the coil disc assembly 100 is placed on a metal table for use, the magnetic field on the second side of the winding group 2 can prevent the metal table at the bottom of the electromagnetic oven from being heated.

[0087] It is worth mentioning that the first magnet part 31 in the present application can also shield the electronic components arranged on the second side of the winding group 2 from the magnetic field of the coil, so as to ensure the reliability of the electronic components.

[0088] Specifically, in the present embodiment, the material of at least part of the structure of the first magnet part 31 or the second magnet part 32 includes one of ferrite, nanocrystalline and silicon steel sheet. The first magnet part 31 can also be other soft magnetic materials, which can be determined according to actual conditions, and the present embodiment does not limit this.

[0089] Please refer to FIG. 9, in an embodiment, in the first winding group 21, at least one of the winding units 211 is arranged in a ring shape, which has a first winding ring segment 2111 close to the center of the mounting area 11, and a second winding ring segment 2112 close to the periphery of the mounting area 11, the width of at least part of the first winding ring segment 2111 is d1, the width of at least part of the second winding ring segment 2112 is d2, d1 is greater than d2.

[0090] It can be understood that "the width of at least part of the first winding ring segment 2111 is d1, the width of at least part of the second winding ring segment 2112 is d2, d1 is greater than d2" refers to the distance between the innermost turn of the multi-turn coil of the winding unit 2112 and the outermost turn of the multi-turn coil of the winding unit 2112 in the outward direction from the geometric center of the winding unit 211, which can be achieved by reducing the winding length of the corresponding area of the second winding ring segment 2112; it can also be that in the winding of the first winding ring segment 2111 and the second winding ring segment 2112, the winding gaps of the first winding ring segment 2111 are arranged in parallel when the winding segments of the adjacent winding segments in each winding ring segment are arranged in parallel; of course, when the winding segments of the adjacent winding segments in each winding ring segment are not arranged in parallel, the winding gaps will be uneven, but other parts of the winding segments can be adjusted adaptively to finally achieve d1 greater than d2.

[0091] In an embodiment, in the first winding group 21, at least one of the winding units 211 is arranged in a ring shape, which has a first winding ring segment 2111 close to the center of the mounting area 11, and a second winding ring segment 2112 close to the periphery of the mounting area 11, the winding center of the winding unit 211 is located on the side close to the second winding ring segment 2112 of the geometric center.

[0092] The "winding center of the winding unit 211 is located on the side close to the second winding ring segment 2112 of the geometric center" can be to arrange the winding unit 211 in a shape similar to a fan, a triangle, etc., and adjust the geometric center by adjusting the shape of the winding unit 211.

[0093] It can be understood that according to Ampere's rule, the magnetic poles formed by the winding unit 211 correspond to the inner ring area of the ring shape, and when "d1 is greater than d2" or "the winding center is located on the side close to the second winding ring segment 2112 of the geometric center", the magnetic poles of the corresponding winding unit 211 are all formed in the area close to the outer periphery of the support 1, thereby realizing the largest possible heating range of the pot wall.

[0094] Of course, the specific manner of realizing that the width of the first winding ring segment 2111 is set to be greater than the width of the second winding ring segment 2112, and that the winding center of the winding unit 211 is located at the geometric center of the winding unit 211 close to one side of the second winding ring segment 2112, is not limited to the above examples, and other changes can be made by those skilled in the art under the inspiration of the technical essence of the embodiments of the present application, as long as the functions and effects achieved are the same or similar to those of the embodiments of the present application, which should be covered within the protection scope of the embodiments of the present application.

[0095] In the technical solutions provided in the present application, by forming a magnetic pole in the middle of at least one winding unit 211 close to one side of the corresponding second winding ring segment 2112, the magnetic pole formed in the middle of the winding unit 211 can be closer to the edge side of the support 1, and can be coupled with the position of the corresponding pot wall to increase the heating range of the pot wall, so that the uniformity of heating of the pot bottom and the pot wall of the pot is improved, thereby solving the problem that the existing electromagnetic oven has poor heating effect on the pot wall, and even if the diameter of the coil is increased, it is difficult to increase the heat of the pot wall.

[0096] Further, in order to make the magnetic fields generated by the first winding ring segment 2111 and the second winding ring segment 2112 uniform, so that the pot is uniformly heated, in the present embodiment, the winding gap of at least part of the first winding ring segment 2111 is greater than the winding gap of the second winding ring segment 2112. By setting the winding gap of the second winding ring segment 2112 to be more dense, the magnetic field generated by the second winding ring segment 2112 is greater than the magnetic field generated by the first winding ring segment 2111, but the magnetic field generated by the second winding ring segment 2112 can be distributed more uniformly, so that the area acting on the pot wall is uniformly heated.

[0097] In an embodiment, the support 1 further comprises a hollow hole corresponding to the winding unit 211.

[0098] It can be understood that the shape of the hollow hole provided on the support 1 can be a circular hole, a square hole, a diamond hole, an oval hole, a star-shaped hole, or an irregularly shaped hole, which is not particularly limited here and can be set to the desired shape. The hollow hole can dissipate heat, keep the heating element and its surrounding components within the optimal working temperature range, ensure the stability and efficiency of the system, prevent the coil disc assembly 100 from being damaged due to overheating, and prolong the service life of the coil disc assembly 100.

[0099] The application also provides an electromagnetic heating device, which comprises the coil disc assembly 100, a panel and an electric control device of each of the above embodiments. The specific structure of the coil disc assembly 100 is referred to the above embodiments. Since the electromagnetic heating device adopts all the technical solutions of the above embodiments, it has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0100] The panel is provided with a plurality of heating zones, and the plurality of mounting zones 11 are arranged corresponding to the plurality of heating zones; wherein the plurality of heating zones comprises a side wall heating zone, and the winding group 2 arranged corresponding to the side wall heating zone is arranged as a first winding group 21.

[0101] In this way, the first winding group 21 arranged on the side wall heating zone is used to heat the side wall of the pot, and the bottom wall of the pot is heated in the heating zone without the first winding group 21, so that the number and position of the first winding group 21 can be arranged according to different requirements, thereby improving the richness of the heating means of the electromagnetic heating device to adapt to diversified cooking requirements. It can be understood that the electromagnetic heating device can be an induction cooker or an electromagnetic heating stove, etc., and only the electromagnetic heating device with the coil disc assembly 100 belongs to the electromagnetic heating device of the application.

[0102] The above is only an exemplary embodiment of the application, and does not limit the patent scope of the application. Any equivalent structural transformation, direct / indirect application in other related technical fields based on the technical concept of the application and the content of the specification and drawings are included in the patent protection scope of the application.

Claims

1. A coil disk assembly, wherein, The coil disc assembly comprises: a support having a plurality of mounting areas formed thereon; and a plurality of winding groups corresponding to the plurality of mounting areas, at least one winding group being arranged as a first winding group, the first winding group comprising a plurality of winding units distributed along a periphery of the mounting area, two adjacent winding units being arranged with opposite current directions so as to form opposite magnetic poles.

2. The coil former assembly of claim 1, wherein, The plurality of mounting areas are arranged in a matrix; or The plurality of mounting areas are arranged along a circumference.

3. The coil former assembly of claim 1, wherein, The mounting area is arranged in a square shape; or The mounting area is arranged in a circular shape.

4. The coil former assembly of any one of claims 1 to 3, wherein, The plurality of mounting areas are arranged adjacently. At least part of the winding units in two winding groups on two adjacent mounting areas are shared.

5. The coil former assembly of any one of claims 1 to 3, wherein, The plurality of mounting areas form a combined mounting area. Part of the winding units in the plurality of winding groups are distributed along a periphery of the combined mounting area to form a winding hybrid group, in which two adjacent winding units are arranged with opposite current directions so as to form opposite magnetic poles.

6. The coil former assembly of claim 5, wherein, The number of winding units in the winding hybrid group is an even number greater than or equal to 4.

7. The coil former assembly of claim 1, wherein, The number of winding units in the winding group is an even number greater than or equal to 4.

8. The coil former assembly of claim 1, wherein, The plurality of winding groups have a first side and a second side, the first side being arranged to correspond to a heating appliance to be arranged; The coil disc assembly further comprises at least one magnet structure arranged corresponding to at least one winding group, the magnet structure being located on the second side of the winding group, the magnet structure comprising a first magnet portion, the first magnet portion comprising: two magnetic end portions arranged corresponding to central regions of two adjacent winding units; and an intermediate portion extending from one magnetic end portion to another magnetic end portion.

9. The coil former assembly of claim 8, wherein, The two magnetic end portions and the intermediate portion are integrally arranged.

10. The coil former assembly of claim 8, wherein, At least one magnetic end portion is provided with a magnetic protrusion extending towards the first side of the winding unit.

11. The coil former assembly of claim 1, wherein, In the first winding group, at least one winding unit is arranged in a ring shape, having a first winding ring segment close to the center of the mounting area and a second winding ring segment close to the periphery of the mounting area, the width of at least part of the first winding ring segment being d1, the width of at least part of the second winding ring segment being d2, d1 being greater than d2.

12. The coil former assembly of claim 1, wherein, In the first winding group, at least one winding unit is arranged in a ring shape, having a first winding ring segment close to the center of the mounting area and a second winding ring segment close to the periphery of the mounting area, the winding center of the winding unit being located on the side close to the second winding ring segment.

13. An electromagnetic heating device, wherein, The electromagnetic heating device comprises: a panel having a plurality of heating areas arranged thereon; and The coil disc assembly of any one of claims 1 to 12, a plurality of the mounting areas being arranged corresponding to the plurality of heating areas; The plurality of heating areas comprise a side wall heating area, the winding group arranged corresponding to the side wall heating area being arranged as a first winding group.

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