Coil disc assembly and cooking utensil

Abstract

Disclosed in the present application are a coil disc assembly and a cooking utensil. The coil disc assembly comprises a mounting support and a first coil winding, the mounting support being provided with corner portions, and the first coil winding being wound on the mounting support. The first coil winding is provided with protruding portions extending to the corner portions, and an included angle formed by each protruding portion and a winding wire adjacent thereto is set to be greater than an included angle formed by extending directions of two winding wires adjacent to the protruding portion.

Description

Coil pan assembly and cooking utensil

[0001] This application claims priority to Chinese patent application No. 202420604219.1 filed on March 26, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present application relates to the technical field of electromagnetic heating, and in particular to a coil disk assembly and a cooking appliance. Background Art

[0003] Conventional square coil disks have weaker heating at the corners of the square coil because the coil magnetic fields on both sides of the corners cancel each other out. When using square pots for cooking, the cooking effect at the four corners of the pot is poor, and the frying and grilling cooking experience is poor. Increasing the radius of the corners can reduce the mutual cancellation of the coil magnetic fields, but at the same time it will reduce the size of the corner diagonal, which still cannot solve the cooking problem at the four corners of the square pot. Technical issues

[0004] The main purpose of the present application is to provide a coil pan assembly and a cooking utensil, aiming to solve the problem that the existing square coil pan has a heating blind spot at the corner of the square pot. Technical Solutions

[0005] To achieve the above objectives, the present application proposes a coil disk assembly, which includes:

[0006] A mounting bracket having a corner portion; and

[0007] The first coil winding is wound on the mounting bracket, and the first coil winding has a protrusion extending to the corner and protruding relative to the adjacent winding. The angle formed between the protrusion and the adjacent winding is set to be greater than the angle formed by the extension directions of the two windings adjacent to the protrusion.

[0008] In one embodiment, the mounting bracket is arranged in a quasi-square shape to have a plurality of side edges, and the intersection of adjacent two side edges forms the corner portion.

[0009] In one embodiment, the mounting bracket has a plurality of corner portions, and correspondingly, the first coil winding has a plurality of protrusions.

[0010] In one embodiment, the first coil winding has a plurality of protrusions spaced apart along the circumference, each protrusion is formed by a portion of the first coil winding protruding outward relative to an adjacent portion, and a recess of the first coil winding is formed between two adjacent protrusions.

[0011] In one embodiment, each turn of the special-shaped coil of the first coil winding includes a plurality of first wire segments and a plurality of second wire segments, a second wire segment is arranged between two adjacent first wire segments, the middle portion of the first wire segment is bent away from the middle portion of the mounting bracket, the first wire segment forms the convex portion, and the second wire segment forms the concave portion.

[0012] In one embodiment, each of the first conductive line segments is configured to be in an arc shape.

[0013] In one embodiment, each of the first wire segments is configured as a plurality of sequentially connected straight wire segments, and the angle formed between two adjacent straight wire segments is configured to be greater than the angle formed by the extension directions of the two adjacent first wire segments.

[0014] In one embodiment, the middle portions of the plurality of second wire segments are bent toward the middle portion of the mounting bracket.

[0015] In one embodiment, middle portions of the plurality of second wire segments are bent away from the middle portion of the mounting bracket.

[0016] In one embodiment, each of the second conductive line segments is arranged in a straight line.

[0017] In one embodiment, the coil disk assembly further includes a second coil winding wound around a middle portion of the mounting bracket, and the first coil winding is disposed around an outer periphery of the second coil winding.

[0018] In one embodiment, the second coil winding is arranged in a circular shape;

[0019] Each turn of the first coil winding includes a first wire segment corresponding to the protrusion, and a second wire segment connected to the first wire segment. The middle part of each second wire segment is bent away from the middle part of the mounting bracket, and each second wire segment is arranged in parallel with the second coil winding.

[0020] In one embodiment, each coil turn of the first coil winding comprises a first wire segment corresponding to the protrusion, and a second wire segment connected to the first wire segment;

[0021] The mounting bracket is provided with a first winding structure for winding the first coil winding, and the first winding structure includes:

[0022] a first winding portion provided on one side of the mounting bracket, wherein a first winding groove is defined between the first winding portion and the mounting bracket, the groove opening of the first winding portion being directed toward the peripheral side of the mounting bracket; and

[0023] a plurality of second winding grooves formed on one side of the mounting bracket;

[0024] The first conductor segment of the first coil winding is confined to the first winding slot, and the plurality of second conductor segments of the first coil winding are correspondingly arranged in the plurality of second winding slots.

[0025] In one embodiment, a plurality of third winding grooves and a plurality of fourth winding grooves are recessed on one side of the mounting bracket;

[0026] The plurality of first conductive wire segments of the first coil winding are correspondingly arranged in the third winding slots, and the plurality of second conductive wire segments of the first coil winding are correspondingly arranged in the fourth winding slots.

[0027] The present application also provides a cooking utensil, comprising a coil disc assembly, wherein the coil disc assembly comprises:

[0028] A mounting bracket having a corner portion; and

[0029] The first coil winding is wound on the mounting bracket, and the first coil winding has a convex portion extending to the corner portion and protruding relative to the adjacent winding.

[0030] In one embodiment, the cooking appliance comprises an induction cooker. Beneficial effects

[0031] In the technical solution provided in the present application, the coil disk assembly includes a mounting bracket and a first coil winding, the mounting bracket has a corner portion, the first coil winding is wound on the mounting bracket, the first coil winding has a convex portion extending to the corner portion, the angle formed between the convex portion and the winding adjacent to it is greater than the angle formed by the extension direction of the two windings adjacent to the convex portion, the two windings adjacent to the convex portion are transitioned through the convex portion, thereby avoiding a sudden change in the current direction of the wire, reducing the degree of cancellation of the magnetic field component, and alleviating the sudden change of the electromagnetic field, and the convex portion extends to the corner portion and can cover the mounting bracket as much as possible. When the mounting bracket is set to be square, the corner portions formed at the four corners of the mounting bracket can correspond to the convex portion, so as to facilitate coupled heating with square cookware, so as to solve the problem that the existing square coil disk has a heating blind spot at the corner of the square cookware. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0033] FIG1 is a plan view of a first embodiment of a coil disk assembly provided by the present application;

[0034] FIG2 is a schematic cross-sectional view taken along line AA in FIG1 ;

[0035] FIG3 is a schematic cross-sectional view taken along line BB in FIG1 ;

[0036] FIG4 is a plan view of a second embodiment of a coil disk assembly provided by the present application;

[0037] FIG5 is a schematic cross-sectional view taken along line AA in FIG4 ;

[0038] FIG6 is a schematic cross-sectional view taken along line BB in FIG4 ;

[0039] FIG7 is a plan view of a third embodiment of a coil disk assembly provided by the present application;

[0040] FIG8 is a schematic cross-sectional view taken along line AA in FIG7 ;

[0041] FIG9 is a schematic cross-sectional view taken along line BB in FIG7 ;

[0042] FIG10 is a plan view of a fourth embodiment of a coil disk assembly provided by the present application;

[0043] FIG11 is a schematic cross-sectional view taken along line AA in FIG10 ;

[0044] FIG12 is a schematic cross-sectional view taken along line BB in FIG10 .

[0045] Description of Figure Numbers:

[0046] Reference numerals: 100 coil disk assembly 1d fourth winding slot 1 mounting bracket 2 first coil winding 10 corner portion 20 protrusion 11 first winding portion 21 first conductor segment 1a first winding slot 22 second conductor segment 1b second winding slot 3 second coil winding 1c third winding slot

[0047] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. Modes for Carrying Out the Invention

[0048] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0049] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0050] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0051] The coil windings of existing coil disks usually have regular shapes such as round, square, rectangular, and elliptical. The shape of the coil winding corresponds to the heated area. If you want to get a larger heating area, you need to increase the overall size of the coil winding. However, if you use a pot with a small bottom area, because the coil area that can be covered is small, especially the coil winding of the outer circle is too far away from the pot, it will cause the electronic control signal to deteriorate, the power to be low, the performance to decline, easy damage, and reduced reliability.

[0052] In order to solve the above problems, the present application provides a coil disk, Figure 1 is a plan schematic diagram of the first embodiment of the coil disk assembly provided by the present application; Figure 2 is an AA cross-sectional schematic diagram in Figure 1; Figure 3 is a BB cross-sectional schematic diagram in Figure 1; Figure 4 is a plan schematic diagram of the second embodiment of the coil disk assembly provided by the present application; Figure 5 is an AA cross-sectional schematic diagram in Figure 4; Figure 6 is a BB cross-sectional schematic diagram in Figure 4; Figure 7 is a plan schematic diagram of the third embodiment of the coil disk assembly provided by the present application; Figure 8 is an AA cross-sectional schematic diagram in Figure 7; Figure 9 is a BB cross-sectional schematic diagram in Figure 7; Figure 10 is a plan schematic diagram of the fourth embodiment of the coil disk assembly provided by the present application; Figure 11 is an AA cross-sectional schematic diagram in Figure 10; Figure 12 is a BB cross-sectional schematic diagram in Figure 10.

[0053] Please refer to Figures 1 to 3. The coil disk includes a mounting bracket 1 and a first coil winding 2. The mounting bracket 1 has a corner portion 10. The first coil winding 2 is wound on the mounting bracket 1, and the first coil winding 2 has a protrusion 20 extending to the corner portion 10 and protruding relative to the adjacent winding. The angle formed between the protrusion 20 and the adjacent winding is set to be greater than the angle formed by the extension directions of the two windings adjacent to the protrusion 20.

[0054] It should be noted that the corner portion 10 can be understood as a non-arc shape, so the coil disk is a non-circular shape, that is, the coil disk is set to be an irregular coil disk with a corner portion 10, such as a polygon, fan-shaped, etc., which can be flexibly set according to actual needs.

[0055] It should also be noted that, in order to enable the coil winding to have a more concentrated heating area, the two adjacent turns of the coil are generally arranged in sequence at regular and equal intervals. In order to adapt to the bottom of the pot, the coil winding is generally set to a circular shape, and the first coil winding 2 has the protrusion 20, which is adapted to the corner portion 10. When the pot is placed on one side of the coil disk assembly 100, it is fully coupled with the bottom of the larger pot.

[0056] It can be understood that, since the first coil winding 2 has the protrusion 20, the main part of the first coil winding 2 does not need to be set too large. The overall outer dimensions of the first coil winding 2 are relatively large, and it can also be coupled with large-sized pots. Then, relatively speaking, the main part of the first coil winding 2 can be reduced accordingly. When coupled with a smaller pot, the main part of the first coil winding 2 can also participate in the coupling. Therefore, when the pot is slightly smaller, it has no effect on the performance of the coil disk assembly 100.

[0057] In the technical solution provided in the present application, the coil disk assembly 100 includes a mounting bracket 1 and a first coil winding 2, the mounting bracket 1 has a corner portion 10, the first coil winding 2 is wound on the mounting bracket 1, and the first coil winding 2 has a protrusion 20 extending to the corner portion 10, and the angle formed between the protrusion 20 and the adjacent winding is greater than the angle formed by the extension direction of the two windings adjacent to the protrusion 20. The two windings adjacent to the protrusion 20 are transitioned through the protrusion 20 to avoid a sudden change in the current direction of the wire, reduce the degree of cancellation of the magnetic field component, and alleviate the sudden change of the electromagnetic field. In addition, the protrusion 20 extends to the corner portion 10 and can cover the mounting bracket 1 as much as possible. When the mounting bracket 1 is set to be square, the corner portions 10 formed at the four corners of the mounting bracket 1 can correspond to the protrusion 20, so as to facilitate coupling heating with square cookware, thereby solving the problem of heating blind spots at the corners of square cookware in existing square coil disks.

[0058] It should also be noted that, because the protrusion 20 is adapted to the corner portion 10 of the mounting bracket 1, the first coil winding 2 can produce an enlarged working area. When the size of the cookware is large, there is no need to increase the size of the entire coil disk assembly 100, and the cookware can also couple with the first coil winding 2. When the size of the cookware is small, the cookware is coupled with the non-protruding part of the first coil winding 2, and the number of coil turns participating in the coupling effect of the cookware is equivalent, thereby ensuring the performance of the coil disk assembly 100, so that the coil disk assembly 100 can provide a larger heating area and the performance will not be reduced when using a small-bottom cookware.

[0059] Specifically, in one embodiment, the mounting bracket 1 is configured in a substantially square shape, having multiple sides, with the corner portions 10 formed at the intersection of adjacent sides. Thus, when the main body of the first coil winding 2 is circular, the four corners of the mounting bracket 1 form the protrusions 20 relative to the first coil winding 2. Of course, the mounting bracket 1 may also be configured in other possible shapes, such as a pentagon, hexagon, or diamond, etc., which can be determined based on actual circumstances and are not limited in this embodiment of the present invention.

[0060] Specifically, in this embodiment, the mounting bracket 1 has a plurality of corner portions 10, and correspondingly, the first coil winding 2 has a plurality of protrusions 20. Thus, by adapting the first coil winding 2 to the corner portions 10 of the mounting bracket 1, the first coil winding 2 can have a larger outer size and can be coupled with larger-sized cookware.

[0061] It is understandable that the protrusions 20 can be configured as coil segments with the same shape and the same winding method, or can be configured as coil segments with different shapes and winding methods, which can be determined based on actual conditions.

[0062] In this embodiment, the first coil winding 2 has a plurality of protrusions 20 spaced apart along the circumference. Each protrusion 20 is formed by a portion of the first coil winding 2 protruding outward relative to an adjacent portion, and a recess of the first coil winding 2 is formed between two adjacent protrusions 20.

[0063] In this way, when the size of the cookware is large, the cookware can be coupled with multiple said protrusions 20 and multiple said recesses, and the performance of the coil disk assembly 100 can be fully exerted. When the size of the cookware is small, the cookware can be coupled with multiple said recesses, and the performance of the coil disk assembly 100 can also be fully exerted.

[0064] Specifically, in this embodiment, each turn of the special-shaped coil of the first coil winding 2 includes a plurality of first wire segments 21 and a plurality of second wire segments 22, and a second wire segment 22 is arranged between two adjacent first wire segments 21. The middle portion of the first wire segment 21 is bent away from the middle portion of the mounting bracket 1, and the first wire segment 21 forms the convex portion 20, and the second wire segment 22 forms the concave portion.

[0065] It can be understood that since the first coil winding 2 is formed by multiple turns of coils, the number of turns of the protrusion 20 is the same as the number of turns of the recess. When the size of the cookware is large, the cookware can be coupled with multiple protrusions 20 and multiple recesses, and the number of coil turns involved in the coupling is the number of turns of the protrusion 20 or the recess. When the size of the cookware is slightly smaller, the cookware cannot cover all areas of the first coil winding 2, but when it can be coupled to multiple recesses, it can be coupled with multiple recesses, and the number of coil turns involved in the coupling is the number of turns of the recess. Therefore, the number of coil turns coupled with large-sized cookware does not change much.

[0066] In the first embodiment, referring to Figures 1 to 3 , each first conductor segment 21 is configured in an arc shape. This facilitates winding of the first conductor segment 21 and avoids introducing sharp corners in the first conductor segment 21. Sharp corners typically generate significant heat, potentially posing a safety hazard.

[0067] In the first embodiment, the middle portions of the plurality of second wire segments 22 are bent toward the middle portion of the mounting bracket 1. In this manner, during the winding of the first coil winding 2, a smooth transition can be achieved between the convex portion 20 and the concave portion, and the wiring direction is consistent, which helps simplify the winding process and improve winding efficiency.

[0068] In the second embodiment, referring to Figures 4 to 6 , each first conductor segment 21 is configured as a plurality of sequentially connected straight conductor segments. The angle between two adjacent straight conductor segments is configured to be greater than the angle formed by the extension directions of the two adjacent first conductor segments 21. In this way, the plurality of straight conductor segments are connected to form an arc-like line, which facilitates the winding of the first conductor segments 21 and avoids introducing sharp corners in the first conductor segments 21. This provides multiple winding configurations for the first coil winding 2.

[0069] In a third embodiment, referring to Figures 7 to 9 , the middle portions of the plurality of second wire segments 22 are bent away from the middle portion of the mounting bracket 1. The second wire segments 22 can be configured to have the same curvature as the annular coil winding. This allows the second wire segments 22 and the annular coil winding to form a large heating zone with the same current flow direction, resulting in higher efficiency when coupled with large-sized cookware.

[0070] In the fourth embodiment, referring to Figures 10 to 12 , each second wire segment 22 is arranged in a straight line. Because the second wire segment 22 needs to be bent, a winding structure must be provided on the mounting bracket 1 for winding the second wire segment 22, which increases the complexity of the winding process. Arranging each second wire segment 22 in a straight line allows it to be directly stretched toward another adjacent winding structure for winding the first wire segment 21 after the first wire segment 21 is wound, thus reducing the number of winding steps. Alternatively, when the second wire segment 22 is wound using a dense winding process, the complexity of the winding process can be reduced.

[0071] Because the winding process for the first coil winding 2 is relatively complex, winding is more convenient when the first coil winding 2 is larger. However, the magnetic field strength inside the first coil winding 2 is relatively weak, which can easily form a heating blind spot. To compensate for this heating blind spot, in one embodiment of the present invention, the coil disk assembly further includes a second coil winding 3 wound around the middle of the mounting bracket, with the first coil winding 2 disposed outside the second coil winding 3. Thus, placing the second coil winding 3 inside the first coil winding 2 creates a continuous heating area, thereby improving the heating uniformity of the coil disk assembly 100.

[0072] Furthermore, the first coil winding 2 and the second coil winding 3 can be controlled separately. When the pot is small, only the second coil winding 3 can be controlled to work. When the pot is large, the first coil winding 2 and the second coil winding 3 can be controlled to work simultaneously.

[0073] Furthermore, the second coil winding 3 can be configured as a circular or square shape, and can be designed according to actual circumstances. Refer to FIG7 . In this embodiment, the second coil winding 3 is configured in a circular shape. Each turn of the first coil winding 2 includes a first wire segment 21 corresponding to the protrusion 20, and a second wire segment 22 connected to the first wire segment 21. The middle portion of each second wire segment 22 is bent away from the middle portion of the mounting bracket 1, and each second wire segment 22 is arranged parallel to the second coil winding 3. In this way, the magnetic fields generated by the corresponding portions of the second wire segment 22 and the second coil winding 3 are also parallel, which helps reduce electromagnetic interference between the coils and avoids unnecessary electromagnetic coupling and interference caused by the coils crossing or staggered, which can affect the performance and stability of the circuit. This can also reduce energy loss, improve the efficiency of electromagnetic energy transmission, help reduce circuit energy consumption, and optimize the performance of electromagnetic equipment.

[0074] In this embodiment, each turn of the first coil winding 2 includes a first wire segment 21 corresponding to the protrusion 20, and a second wire segment 22 connected to the first wire segment 21; the mounting bracket 1 is provided with a first winding structure for winding the first coil winding 2, and the first winding structure includes a first winding portion 11 and a plurality of second winding grooves 1b formed on one side of the mounting bracket 1; the first winding portion 11 is provided on one side of the mounting bracket 1, and a first winding groove 1a with a notch facing the circumferential side of the mounting bracket 1 is defined between the first winding portion 11 and the mounting bracket 1; wherein, the first wire segment 21 of the first coil winding 2 is limited to the first winding groove 1a, and the plurality of second wire segments 22 of the first coil winding 2 are correspondingly provided in the plurality of second winding grooves 1b.

[0075] Thus, on the mounting bracket 1 , the plurality of first wire segments 21 can be confined in the first winding groove 1 a by side winding, and the plurality of second wire segments 22 can be wound in the second winding groove 1 b by sparse winding.

[0076] Specifically, for the above-mentioned first embodiment, please refer to Figures 1 to 3. After the arc-shaped first wire segment 21 is confined in a first winding groove 1a, when it extends and winds toward another adjacent first winding groove 1a, it is sparsely wound through the second winding groove 1b located between the two adjacent first winding grooves 1a, wherein the extension direction of each second winding groove 1b can be set to be bent in the middle toward one side away from the middle of the mounting bracket 1.

[0077] Specifically, for the above-mentioned second embodiment, please refer to Figures 4 to 6. After the first wire segment 21 connected by multiple straight wire segments is confined in a first winding groove 1a, when it extends and winds toward another adjacent first winding groove 1a, it is sparsely wound through the second winding groove 1b located between the two adjacent first winding grooves 1a.

[0078] In another embodiment, a plurality of third winding slots 1c and a plurality of fourth winding slots 1d are recessed on one side of the mounting bracket 1; the plurality of first wire segments 21 of the first coil winding 2 are correspondingly disposed in the third winding slots 1c, and the plurality of second wire segments 22 of the first coil winding 2 are correspondingly disposed in the fourth winding slots 1d. The specific form of the third winding slots 1c can also be various, namely, the third winding slots 1c and the fourth winding slots 1d can both be configured as slots with a larger slot width and larger spacing; or the third winding slots 1c and the fourth winding slots 1d can both be configured as slots with a smaller slot width and smaller spacing to achieve sparse or dense winding.

[0079] Regarding the third embodiment described above, please refer to Figures 7 to 9. The third winding groove 1c and the fourth winding groove 1d can both be set as wider grooves, and the first wire segment 21 can be sparsely wound in the third winding groove 1c, and the second wire segment 22 can be sparsely wound in the fourth winding groove 1d.

[0080] Regarding the fourth embodiment described above, referring to Figures 10 to 12 , the third winding groove 1c and the fourth winding groove 1d can both be set as narrower grooves, the first wire segment 21 is tightly wound in the third winding groove 1c, and the second wire segment 22 is tightly wound in the fourth winding groove 1d.

[0081] To better understand the difference between sparse winding and dense winding, it's important to note the following differences: Coil Arrangement: Sparse winding and dense winding refer to the arrangement of the wires in the coil. In sparse winding, the spacing between wires is relatively large, and there is usually some gap between them. In dense winding, the spacing between wires is relatively small, and the wires are closely packed with almost no gaps. Wire Length: Due to the large spacing between wires in sparse winding, the wire length is relatively long. In dense winding, due to the close spacing between wires, the wire length is relatively short. Coil Inductance: Sparse winding and dense winding affect the inductance of the coil. Sparsely wound coils, due to the large spacing between wires, have a lower inductance than densely wound coils. Densely wound coils, due to the small spacing between wires, have a higher inductance than sparsely wound coils. Coil Heat Dissipation and Electrical Insulation: Densely wound coils, due to the close spacing between wires, have more difficulty dissipating heat than sparsely wound coils. Furthermore, densely wound coils require higher electrical insulation between wires, as the smaller spacing between wires can easily lead to insulation breakdown. Therefore, the choice of sparse or dense winding depends on the specific application requirements. Coarse winding provides better heat dissipation and electrical insulation, making it suitable for high-power or high-frequency applications. Dense winding, on the other hand, offers greater inductance and smaller size, making it suitable for applications requiring high inductance. This application provides a variety of winding styles, allowing you to choose the appropriate winding method based on your specific needs.

[0082] The present application also provides a cooking utensil, which includes the above-mentioned coil disk assembly 100. Since the cooking utensil includes the coil disk assembly 100, the specific structure of the coil disk assembly 100 refers to the above-mentioned embodiment. Since the coil disk assembly 100 of the cooking utensil adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0083] Specifically, the cooking appliance includes an induction cooker. Of course, it can also be other possible cooking appliances, such as an electric rice cooker or an electric pressure cooker. The specific one can be determined according to actual conditions and is not limited in this embodiment of the present invention.

[0084] The above description is merely an optional embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made using the contents of the present application specification and drawings under the inventive concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A coil disk assembly, wherein: The coil disk assembly comprises: A mounting bracket having a corner portion; and The first coil winding is wound on the mounting bracket, and the first coil winding has a protrusion extending to the corner and protruding relative to the adjacent winding. The angle formed between the protrusion and the adjacent winding is set to be greater than the angle formed by the extension directions of the two windings adjacent to the protrusion.

2. The coil disk assembly according to claim 1, wherein The mounting bracket is arranged in a quasi-square shape to have a plurality of side edges, and the intersection of adjacent two side edges forms the corner portion.

3. The coil disk assembly according to claim 1 or 2, wherein: The mounting bracket has a plurality of corner portions, and correspondingly, the first coil winding has a plurality of protrusions.

4. The coil disk assembly according to claim 3, wherein: The first coil winding has a plurality of convex portions spaced apart along the circumference. Each convex portion is formed by a portion of the first coil winding protruding outward relative to an adjacent portion. A concave portion of the first coil winding is formed between two adjacent convex portions.

5. The coil disk assembly according to claim 4, wherein Each turn of the special-shaped coil of the first coil winding includes multiple first wire segments and multiple second wire segments. A second wire segment is arranged between two adjacent first wire segments. The middle part of the first wire segment is bent away from the middle part of the mounting bracket. The first wire segment forms the convex part, and the second wire segment forms the concave part.

6. The coil disk assembly according to claim 5, wherein: Each of the first conductive line segments is configured to be in an arc shape.

7. The coil disk assembly according to claim 5, wherein: Each of the first wire segments is configured as a plurality of sequentially connected straight wire segments, and the angle formed between two adjacent straight wire segments is configured to be greater than the angle formed by the extension directions of the two adjacent first wire segments.

8. The coil disk assembly according to claim 5, wherein: The middle portions of the plurality of second wire segments are bent toward the middle portion of the mounting bracket.

9. The coil disk assembly according to claim 5, wherein: The middle portions of the plurality of second wire segments are bent in a direction away from the middle portion of the mounting bracket.

10. The coil disk assembly according to claim 5, wherein Each of the second conductive line segments is arranged in a straight line.

11. The coil disk assembly according to any one of claims 1 to 10, wherein: The coil disk assembly further includes a second coil winding wound around the middle of the mounting bracket, and the first coil winding is arranged on the periphery of the second coil winding.

12. The coil disk assembly according to claim 11, wherein The second coil winding is arranged in a circular shape; Each turn of the first coil winding includes a first wire segment corresponding to the protrusion, and a second wire segment connected to the first wire segment. The middle part of each second wire segment is bent away from the middle part of the mounting bracket, and each second wire segment is arranged in parallel with the second coil winding.

13. The coil disk assembly according to claim 1, wherein Each turn of the first coil winding comprises a first wire segment corresponding to the protrusion and a second wire segment connected to the first wire segment; The mounting bracket is provided with a first winding structure for winding the first coil winding, and the first winding structure includes: a first winding portion provided on one side of the mounting bracket, wherein a first winding groove is defined between the first winding portion and the mounting bracket, the groove opening of the first winding portion being directed toward the peripheral side of the mounting bracket; and a plurality of second winding grooves formed on one side of the mounting bracket; The first conductor segment of the first coil winding is confined to the first winding slot, and the plurality of second conductor segments of the first coil winding are correspondingly arranged in the plurality of second winding slots.

14. The coil disk assembly according to claim 1, wherein A plurality of third winding grooves and a plurality of fourth winding grooves are recessed on one side of the mounting bracket; The plurality of first conductive wire segments of the first coil winding are correspondingly arranged in the third winding slots, and the plurality of second conductive wire segments of the first coil winding are correspondingly arranged in the fourth winding slots.

15. A cooking appliance, wherein: The cooking appliance comprises the coil disk assembly according to any one of claims 1 to 14.

16. The cooking appliance according to claim 15, wherein The cooking appliance includes an induction cooker or an induction range.

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