Heating module and cooking appliance thereof

Abstract

The application discloses a heating module and a cooking utensil thereof. The heating module comprises a support body and a wire group part, and the wire group part comprises a first wire group and a second wire group. The first wire group and the second wire group are in a polygonal structure. The first wire group is provided with a first corner part in a convex structure, and the second wire group is provided with a second corner part in a convex structure. The first corner part and the second corner part are in a staggered distribution structure. The covering distance of the first wire group along the radial direction of the support body is H0. The vertical distance from the inner edge position of the second corner part to the outer edge position of the corresponding region of the first wire group is H. H is greater than or equal to half of H0 and less than or equal to H0. The vertical distance from the outer edge position of the first corner part to the inner edge position of the corresponding region of the second wire group is H1. H1 is less than half of H0. The cooking utensil comprises the aforementioned heating module. The application solves the problem of poor uniform heating effect caused by concentrated heating of the coil disc on the pot in the existing cooking utensil.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of kitchen appliances, in particular to a heating module and cooking utensil thereof. BACKGROUND

[0002] In the existing electric rice cooker, electric pressure cooker or cooking pot, the induction heating of the pot is realized by setting the electromagnetic coil disc, wherein, in order to improve the uniformity of the heating of the pot, some electromagnetic coil discs reduce the effect of concentrated heating, mainly by adjusting the distribution state and shape of the wire group in the electromagnetic coil disc, but the wire group distribution and shape of the electromagnetic coil disc still exist the situation of concentrated distribution of magnetic field, which leads to large area concentrated heating, and further leads to the deviation of the uniformity of the heating, resulting in poor electromagnetic induction heating effect of the electromagnetic coil disc on the pot. SUMMARY

[0003] The utility model aims at at least in a certain extent solves one of the technical problems in the related technical spirit above.

[0004] Therefore, the purpose of the utility model is to provide a heating module and cooking utensil thereof, which mainly solves the problem of poor uniform heating effect caused by concentrated heating of the electromagnetic coil disc in the existing cooking utensil.

[0005] The embodiment of the utility model provides a kind of heating module, including support main body, support main body is set to be concave dish three-dimensional structure, support main body is provided with first winding area and second winding area, first winding area and second winding area are mutually spaced apart structure and mutually independent structure in the inside and outside direction of support main body;

[0006] Further comprising wire group part, wire group part is provided with first wire group and second wire group, first wire group is wound in first winding area, and second wire group is wound in second winding area;

[0007] Wherein, first wire group is set to be polygon structure, and second wire group is also set to be polygon structure, and the number of edges in the polygon structure of second wire group is greater than or equal to the number of edges in the polygon structure of first wire group;

[0008] First angle part of convex structure towards the outside direction of support main body is formed between any two adjacent edges in first wire group, and second angle part of convex structure towards the outside direction of support main body is formed between any two adjacent edges in second wire group, and first angle part and second angle part are distributed in staggered distribution structure in the ring direction of support main body;

[0009] The covering distance of the region corresponding to the position of the second corner portion in the first wire group formed along the radial direction of the support body is H0, the vertical distance from the inner edge position of the second corner portion to the outer edge position of the region corresponding to the position in the first wire group is H, and H is greater than or equal to half of H0 and less than or equal to H0; the vertical distance from the outer edge position of the first corner portion to the inner edge position of the region corresponding to the position in the second wire group is H1, and H1 is less than half of H0.

[0010] The heating module, the first wire group is in a dense winding structure with a rectangular cross section, and the thickness of the first wire group formed in the vertical direction is H2, and H1 is greater than or equal to H2;

[0011] Or, the first wire group is in a dense winding structure with a rectangular cross section, and the thickness of the first wire group formed is H2, which is greater than the thickness H3 of the second wire group, and H1 is greater than or equal to H2.

[0012] The heating module, the second corner portion forms an included angle A greater than or equal to the included angle B formed by the first corner portion;

[0013] Or, the second corner portion forms an included angle A greater than or equal to the included angle B formed by the first corner portion, and the winding turns of the first wire group are greater than the winding turns of the second wire group.

[0014] The heating module, the inner edge position of the first corner portion to the outer edge position of the first corner portion along the radial direction of the support body forms a covering distance L, and L is greater than or equal to the sum of H0 and H2.

[0015] The heating module, a plurality of first wire pressing portions are arranged on the support body, and a first winding area in a hollow structure is formed below the plurality of first wire pressing portions, a first heat dissipation area is formed between adjacent two first wire pressing portions in the annular direction, and the first corner portion is arranged in the first heat dissipation area in an exposed structure;

[0016] A plurality of second wire pressing portions are arranged on the support body, and a second winding area in a hollow structure is formed below the plurality of second wire pressing portions, a second heat dissipation area is formed between adjacent two second wire pressing portions in the annular direction, and the second corner portion is arranged in the second heat dissipation area in an exposed structure.

[0017] The heating module, the upper end position of the first wire pressing portion and / or the second wire pressing portion is provided with a magnetic stripe;

[0018] The first wire pressing portion extends outwardly from inside to outside along the inside and outside directions, and when the first wire pressing portion is provided with a magnetic stripe, the projection area of the first wire pressing portion extending from inside to outside is configured to cover the second corner portion corresponding to the position;

[0019] And / or, the second line part is arranged to extend outwardly from the inside to the outside in the inner-outer direction and extend outwardly to the lower side of the bracket body, and when the second line part is provided with a magnetic stripe, the projection area of the second line part extending from the outside to the inside is configured to cover the first angle part corresponding to the position.

[0020] The aforementioned heating module is provided with a single first heat dissipation area formed in the annular direction, and the heat dissipation area formed in the annular direction is greater than the coverage area formed in the annular direction by a single first line part, and the single second heat dissipation area formed in the annular direction is more than twice the coverage area formed in the annular direction by a single second line part.

[0021] The aforementioned heating module is provided with a connection area between the first line group and the second line group, and the connection area is arranged at the annular area position between the two adjacent first angle parts and second angle parts, and the first line group and the second line group are connected by a single line group in the connection area.

[0022] The aforementioned heating module is provided with a single first heat dissipation area formed in the annular direction, and the heat dissipation area formed in the annular direction is greater than the coverage area formed in the annular direction by a single first line part, and the single second heat dissipation area formed in the annular direction is more than twice the coverage area formed in the annular direction by a single second line part.

[0023] Or, the number of turns of the first line group is more than twice the number of turns of the second line group.

[0024] The cooking utensil comprises a utensil body and a cooking pot, and further comprises the heating module as described above, which is arranged to be installed in the utensil body for electromagnetic induction heating of the cooking pot.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] In the scheme, the polygonal structure of the first line group and the second line group of the heating module and the staggered structure of the first angle part and the second angle part can form a plurality of heating centers, which is beneficial to form better uniform heating effect and improve the uniform heating effect of the cooking pot.

[0027] In the scheme, the position distribution and distance of the first line group and the second line group are limited to form a plurality of staggered heating centers in the annular direction, so that better uniform heating effect is achieved when heating the bottom wall and the side wall of the cooking pot, and the heating area can be expanded, and the plurality of heating centers can form a certain heating area diffusion effect.

[0028] In the scheme, the position of the first angle part and the second angle part is arranged, so that when the area position between the first line group and the second line group is heated on the corresponding area part of the cooking pot, better uniform heating effect is achieved, and concentrated heating is not easy to occur.

[0029] In the scheme, the distance limitation of the first and second wire groups and the thickness limitation of the first wire group can make the multiple heating centers formed by the first included angle part position of the first wire group and the corresponding heating areas of the second wire group form more uniform heating effects, and at the same time, the multiple heating centers formed by the second included angle part position of the second wire group and the corresponding heating areas of the first wire group form more uniform heating effects, effectively preventing concentrated heating.

[0030] In the scheme, the structure of the first and second included angle parts forms a strong and weak interval staggered distribution structure of the magnetic field in the ring direction, thereby forming multiple heating centers, thereby forming better uniform heating effects, and at the same time, forming a heating blind area reduction effect, improving heating uniformity while also forming a heating area diffusion effect, and realizing an enlarged heating area.

[0031] In the scheme, the structures of the first and second wire pressing parts, the first and second heat dissipation areas, etc. can better realize heat dissipation of the first and second wire groups, thereby improving the overall heat dissipation effect of the wire group part, and thereby improving the stability and reliability of the heating device during operation.

[0032] In the scheme, the first and second wire pressing parts not only realize crimping, limiting and fixing of the wire group part, but also realize a structure for installing a magnetic strip, so that the overall structure of the heating device can be better arranged to form a larger heat dissipation area, thereby improving the overall heat dissipation effect of the wire group part.

[0033] In the scheme, the position distribution and position limitation of the magnetic strip can better guide the uniform distribution of the magnetic field, and better guide the first and second wire groups to form multiple heating centers, respectively, thereby improving the uniform heating effect of the heating device during heating.

[0034] The first and second winding areas of the scheme can realize rapid winding and molding of the wire group, facilitate stable and reliable crimping and fixing of the first and second wire groups on the support body, and better stabilize the fixing of the wire group part. BRIEF DESCRIPTION OF DRAWINGS

[0035] Fig. 1 is a schematic view of the support body;

[0036] Fig. 2 is a partial schematic view of the wire group part on the support body;

[0037] Fig. 3 is a structural schematic view of the heating module;

[0038] Fig. 4 is a side schematic view of the heating module;

[0039] Reference numerals: 1 - support body, 101 - first winding area, 102 - second winding area, 2 - first wire group, 201 - first angle part, 3 - second wire group, 301 - second angle part, 4 - first wire pressing part, 5 - second wire pressing part, 6 - first heat dissipation area, 7 - second heat dissipation area, 8 - magnetic strip, 9 - connecting area. DETAILED DESCRIPTION

[0040] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0041] Embodiment: The heating module and the cooking utensil thereof of the utility model, like Figs. 1 to 4 The structure of the heating module of the present solution can achieve better uniform heating effect and prevent concentrated heating caused by excessive concentration of magnetic field, thereby improving the heating effect of the heating module on the cooking pot.

[0042] The heating module of the present solution comprises a support body 1, which is provided in a concave disc three-dimensional structure, so that the heating module can form a three-dimensional heating effect on the cooking pot. The support body 1 is provided with a first winding area 101 and a second winding area 102. The first winding area 101 and the second winding area 102 are both annular clearance structures. The first winding area 101 and the second winding area 102 are mutually spaced apart in the inner and outer directions of the support body 1 and are mutually independent structures. The first winding area 101 is located at the inner ring position of the support body 1 and can be located at the planar structure position of the bottom of the support body 1. The second winding area 102 is located at the outer ring position of the support body 1 and can be located at the inclined surface or arc surface structure position of the side of the support body 1. The first winding area 101 and the second winding area 102 are mutually independent and mutually spaced apart at the inner ring position and the outer ring position. The positions of the first winding area 101 and the second winding area 102 correspond to the three-dimensional structure of the support body 1, so that the heating module can achieve a three-dimensional heating structure.

[0043] The heating module further comprises a wire group part mainly wound on the support body 1, wherein the wire group part is provided with a first wire group 2 and a second wire group 3, the first wire group 2 is wound in the first winding area 101, and the second wire group 3 is wound in the second winding area 102 to form a first winding and a second winding to form two partial heating areas of the heating device. The first wire group 2 and the second wire group 3 can be connected to each other to realize the two partial heating areas of the heating device through the first wire group 2 and the second wire group 3. The first wire group 2 is a single wire group wound in the first winding area 101 to form a single wire group, and the second wire group 3 is a single wire group wound in the second winding area 102 to form a single wire group. The winding structure of the first wire group 2 and the second wire group 3, wherein the first wire group 2 is provided in a polygonal structure, and the second wire group 3 is also provided in a polygonal structure, and the number of sides of the polygonal structure of the second wire group 3 is greater than or equal to the number of sides of the polygonal structure of the first wire group 2. For example, the first wire group 2 and the second wire group 3 are both hexagonal structures or octagonal structures, or the second wire group 3 is an octagonal structure and the first wire group 2 is a hexagonal structure. The number of sides of the polygonal structure of the second wire group 3 is greater than or equal to the number of sides of the polygonal structure of the first wire group 2 to realize that the second wire group 3 forms more heating centers in the corresponding area of the side wall of the cooking pot, thereby forming a larger range of diffusion heating effect, thereby improving the heating area of the side wall of the cooking pot. Not only can a larger heating area range be realized, but a better uniform heating effect can also be realized.

[0044] In the present scheme, a first included angle part 201 is formed between any two adjacent sides of the first wire group 2, which is protruded in the direction of the outside of the support body 1. A plurality of first included angle parts 201 can be formed in the polygonal structure of the first wire group 2. As long as the two adjacent sides are formed, a single first included angle part 201 can be formed. A single heating center can be formed at the position of the first included angle part 201. A second included angle part 301 is formed between any two adjacent sides of the second wire group 3, which is protruded in the direction of the outside of the support body 1. A plurality of second included angle parts 301 can be formed in the polygonal structure of the second wire group 3. As long as the two adjacent sides are formed, a single second included angle part 301 can be formed. A single heating center can be formed at the position of the second included angle part 301. The first included angle part 201 and the second included angle part 301 are distributed in a staggered distribution structure in the annular direction of the support body 1, thereby forming a staggered distribution structure of a plurality of heating centers in the annular direction. Not only can a better diffusion heating range be realized to increase the heating area, but a better uniform heating effect can also be realized. When the area between the first wire group 2 and the second wire group 3 is heated in the corresponding area of the cooking pot, a better uniform heating effect can also be realized, and concentrated heating is less likely to occur.

[0045] The vertical distance from the inner edge position of the second corner portion 301 to the outer edge position of the area corresponding to the position thereof in the first wire group 2 is H, that is, the vertical distance from the inner edge position of the second corner portion 301 to the outermost outer edge position of the first wire group 2 in the radial direction is H, which is the shortest interval distance between the outer edge position of the first wire group 2 and the second corner portion 301 of the second wire group 3. At this time, H is greater than or equal to one-half of H0 and less than or equal to H0. In this way, the magnetic field at the position of the second corner portion 301 is not easily disturbed by the magnetic field of the first wire group 2, and the distance between the heating center formed at the position of the second corner portion 301 and the heating area formed by the first wire group 2 is also not too large, thereby forming a more stable heating area and heating center, achieving a better uniform heating effect. At the same time, the vertical distance from the outer edge position of the first corner portion 201 to the inner edge position of the area corresponding to the position thereof in the second wire group 3 is H1, that is, the shortest distance between the outer edge position of the first corner portion 201 and the inner edge position of the second wire group 3 in the radial direction, and H1 is less than one-half of H0. In this way, the magnetic field at the position of the first corner portion 201 is not easily disturbed by the magnetic field of the second wire group 3, and the distance between the heating center formed at the position of the first corner portion 201 and the heating area formed by the second wire group 3 is also not too large, thereby forming a more stable heating area and heating center, achieving a better uniform heating effect.

[0046] It can be understood that the area between the inner edge position and the outer edge position of the second corner portion 301 in the second wire group 3 is part of the second corner portion 301, which can form an independent heating center. Similarly, the area between the inner edge position and the outer edge position of the first corner portion 201 in the first wire group 2 is part of the first corner portion 201, which can form an independent heating center. In turn, the first wire group 2 and the second wire group 3 form a staggered distribution structure of multiple heating centers in the annular direction, achieving effective improvement of the uniform heating effect.

[0047] In the scheme, in order to further improve the uniform heating effect of the heating device, the first wire group 2 can be arranged in a dense winding structure with a rectangular cross section, and the thickness H2 of the first wire group 2 in the vertical direction is arranged to be greater than or equal to H2. The rectangular cross section of the first wire group 2 makes the magnetic field formed when the first wire group 2 is inductively heated relatively strong, thereby forming a relatively strong heating effect. At the same time, H1 is arranged to be greater than or equal to H2, so that the magnetic field formed in the range of the first wire group 2 can be relatively independent of the magnetic field formed by the second wire group 3. In particular, the magnetic field and the heating center formed at the position of the first included angle part 201 will not spread into the range of the second wire group 3, so that the heating center formed at the position of the first included angle part 201 is not easily interfered by the magnetic field of the second wire group 3. The magnetic fields formed by the first wire group 2 and the second wire group 3 are relatively independent, reducing the magnetic field interference between them. In particular, the heating centers formed by the first included angle part 201 and the second included angle part 301 can be more uniformly and stably distributed in the annular direction, thereby forming a better uniform heating effect.

[0048] Or, in the scheme, in order to further improve the uniform heating effect of the heating device, the first wire group 2 can be arranged in a dense winding structure with a rectangular cross section, and the thickness H2 of the first wire group 2 is arranged to be greater than the thickness H3 of the second wire group 3, and H1 is arranged to be greater than or equal to H2. The rectangular cross section of the first wire group 2 makes the magnetic field formed when the first wire group 2 is inductively heated relatively strong, thereby forming a relatively strong heating effect. At the same time, H2 is arranged to be greater than H3, so that the magnetic field generated by the first wire group 2 is relatively strong to form a relatively strong heating effect, and the magnetic field generated by the second wire group 3 is relatively weak to form a relatively weak heating effect. This can reduce the interference of the magnetic fields generated by the first wire group 2 and the second wire group 3, and the magnetic fields generated by the two are relatively independent, which is conducive to the stable distribution of the heating centers formed by the first included angle part 201 and the second included angle part 301 in the annular direction. At the same time, H1 is arranged to be greater than or equal to H2, so that the magnetic field formed in the range of the first wire group 2 can be relatively independent of the magnetic field formed by the second wire group 3. In particular, the magnetic field and the heating center formed at the position of the first included angle part 201 will not spread into the range of the second wire group 3, so that the heating center formed at the position of the first included angle part 201 is not easily interfered by the magnetic field of the second wire group 3. The magnetic fields formed by the first wire group 2 and the second wire group 3 are relatively independent, reducing the magnetic field interference between them. In particular, the heating centers formed by the first included angle part 201 and the second included angle part 301 can be more uniformly and stably distributed in the annular direction, thereby forming a better uniform heating effect.

[0049] In the scheme, in order to further improve the uniform heating effect of the heating device, the second included angle part 301 can be set to form an included angle A greater than or equal to the included angle B formed by the first included angle part 201, so that the first wire group 2 and the second wire group 3 have a more moderate spacing distance, the distance from the inner edge position of the second included angle part 301 to the outer edge position of the corresponding area part of the first wire group 2 is relatively close and moderate, and better magnetic field distribution effect is formed, and the distance from the heating center formed by the second included angle part 301 to the outer edge position of the first wire group 2 is relatively close and moderate, and better uniform heating effect is formed.

[0050] Or, in the scheme, in order to further improve the uniform heating effect of the heating device, the second included angle part 301 can be set to form an included angle A greater than or equal to the included angle B formed by the first included angle part 201, and the winding number of the first wire group 2 is greater than the winding number of the second wire group 3, so that the first wire group 2 and the second wire group 3 have a more moderate spacing distance, the distance from the inner edge position of the second included angle part 301 to the outer edge position of the corresponding area part of the first wire group 2 is relatively close and moderate, and better magnetic field distribution effect is formed, and the distance from the heating center formed by the second included angle part 301 to the outer edge position of the first wire group 2 is relatively close and moderate, and better uniform heating effect is formed, and the winding number of the first wire group 2 is greater than the winding number of the second wire group 3, so that the winding number of the first wire group 2 can form relatively large heating intensity for stable heating, and the winding number of the second wire group 3 is relatively small, which can form relatively small heating intensity for stable heating. In this way, the thickness of the bottom wall of the cooking pot is generally greater than the thickness of the side wall, which can achieve better heating effect, and is conducive to boiling in the cooking pot, so that the cooking pot has better uniform heating effect after boiling.

[0051] In the scheme, in order to further improve the uniform heating effect of the heating device, the inner edge position of the first included angle part 201 to the outer edge position of the first included angle part 201 along the radial direction of the support body 1 forms a covering distance L, and L is greater than or equal to the sum of H0 and H2, so that the protruding height of the protruding structure of the first included angle part 201 can diffuse the heating center formed by the first included angle part 201 outward, and the thickness of the first wire group 2 is limited to form a larger diffusion range when the magnetic field is distributed, so that the first wire group 2 has better diffusion heating effect when corresponding heating, and the multiple heating centers formed by the multiple first included angle parts 201 have better distribution and diffusion effect in the annular direction, and better uniform heating effect is achieved.

[0052] In the scheme, the structure part for crimping and fixing the first wire group 2 is mainly that a plurality of first wire pressing parts 4 are arranged on the support body 1, the plurality of first wire pressing parts 4 are distributed at intervals in the annular direction, a first winding area 101 in the form of an empty structure is formed below the plurality of first wire pressing parts 4, the first winding area 101 is also in the form of an annular empty structure so as to be used for annular winding of a single wire group in the first winding area 101 to form the first wire group 2 in the form of a polygonal structure, a first heat dissipation area 6 is formed between the adjacent two first wire pressing parts 4 in the annular direction, the first heat dissipation area 6 is in the form of an empty structure, and a first included angle part 201 is arranged in the first heat dissipation area 6 in the form of an exposed structure, so that the first wire group 2 is crimped in the first winding area 101 by the first wire pressing part 4 to realize the crimping and fixing structure of the first wire group 2, at the same time, most of the area of the first wire group 2 is exposed in the first heat dissipation area 6 for heat dissipation, especially the position corresponding to the first included angle part 201 is arranged in the first heat dissipation area 6 for effective heat dissipation, so that the position of the first included angle part 201 in the first wire group 2 can be better heat dissipated, and the situation that heat is concentrated and cannot be effectively dissipated due to the concentrated bending of the single wire group at the position of the first included angle part 201 is prevented.

[0053] Optionally, the plurality of first included angle parts 201 are all located in the position corresponding first heat dissipation area 6, so that each first included angle part 201 can be effectively heat dissipated in the first heat dissipation area 6.

[0054] The structure part for crimping and fixing the first wire group 2 is mainly that a plurality of second wire pressing parts 5 are arranged on the support body 1, the plurality of second wire pressing parts 5 are distributed at intervals in the annular direction, a second winding area 102 in the form of an empty structure is formed below the plurality of second wire pressing parts 5, the second winding area 102 is also in the form of an annular empty structure so as to be used for annular winding of a single wire group in the second winding area 102 to form the second wire group 3 in the form of a polygonal structure, a second heat dissipation area 7 is formed between the adjacent two second wire pressing parts 5 in the annular direction, the second heat dissipation area 7 is in the form of an empty structure, and a second included angle part 301 is arranged in the second heat dissipation area 7 in the form of an exposed structure, so that the second wire group 3 is crimped in the second winding area 102 by the second wire pressing part 5 to realize the crimping and fixing structure of the second wire group 3, at the same time, most of the area of the second wire group 3 is exposed in the second heat dissipation area 7 for heat dissipation, especially the position corresponding to the second included angle part 301 is arranged in the second heat dissipation area 7 for effective heat dissipation, so that the position of the second included angle part 301 in the second wire group 3 can be better heat dissipated, and the situation that heat is concentrated and cannot be effectively dissipated due to the concentrated bending of the single wire group at the position of the second included angle part 301 is prevented.

[0055] Optionally, the plurality of second angle sections 301 are located in the corresponding second heat dissipation area 7, so that each second angle section 301 can effectively dissipate heat in the second heat dissipation area 7.

[0056] In the bracket body 1, the inner side of the first winding area 101 is provided with a corresponding polygonal structure, and when a single wire group is wound, the wire group is wound along the polygonal structure on the bracket body 1, and the first wire group 2 is formed in a polygonal structure. For example, a limiting structure for winding a single wire group is formed by arranging a limiting rib in the form of a polygonal structure on the inner side of the first winding area 101, and the single wire group is wound on the limiting rib to form a polygonal structure.

[0057] In the bracket body 1, the inner side of the second winding area 102 is provided with a corresponding polygonal structure, and when a single wire group is wound, the wire group is wound along the polygonal structure on the bracket body 1, and the second wire group is formed in a polygonal structure. For example, a limiting structure for winding a single wire group is formed by arranging a limiting rib in the form of a polygonal structure on the inner side of the second winding area 102, and the single wire group is wound on the limiting rib to form a polygonal structure.

[0058] In this scheme, the structure for guiding the magnetic field generated by the wire group is also provided with a magnetic strip 8. For example, the magnetic strip 8 is arranged at the upper end of the first wire pressing portion 4 and / or the second wire pressing portion 5. That is, the magnetic strip 8 can be arranged on the first wire pressing portion 4, or the magnetic strip 8 can be arranged on the second wire pressing portion 5, or the magnetic strip 8 can be arranged on both the first wire pressing portion 4 and the second wire pressing portion 5. The magnetic strip 8 can guide the magnetic field, and the magnetic field distribution effect is better, thereby improving the heating effect.

[0059] In this scheme, the first wire pressing portion 4 extends outward from the inside to the outside, and the first wire pressing portion 4 extends downward to form the first winding area 101, thereby forming an empty structure in the annular direction of the first winding area 101 for winding the first wire group 2. When the magnetic strip 8 is arranged on the first wire pressing portion 4, the projection area of the first wire pressing portion 4 extending from the inside to the outside is arranged to cover the second angle section 301 corresponding to the position, so that the magnetic strip 8 on the first wire pressing portion 4 can not only guide the magnetic field of the first wire group 2, but also guide the magnetic field generated by the second angle section 301 of the second wire group 3. At the same time, the structure and position of the magnetic strip 8 do not affect the exposure of the second angle section 301 of the second wire group 3 for heat dissipation, that is, the magnetic field guiding effect is realized, and the heat dissipation effect is not affected by the position of the magnetic strip 8. Therefore, the second angle section 301 can form an independent heating center, and the heat dissipation effect is better.

[0060] And / or, wherein the second pressing wire part 5 extends outward from inside to outside in the inside-outside direction and extends downward and outward to the lower left of the support body 1, the second pressing wire part 5 extends downward to form a second winding area 102, and the second winding area 102 forms a clearance structure in the annular direction to wind the second wire group 3. When the second pressing wire part 5 is provided with a magnetic stripe 8, the projection area of the second pressing wire part 5 extending from outside to inside is configured to cover the first included angle part 201 corresponding to its position, so that the magnetic stripe 8 on the second pressing wire part 5 not only forms a magnetic field guide to the second wire group 3, but also realizes a certain guide to the magnetic field generated by the first included angle part 201 position on the first wire group 2. At the same time, the structure and position of the magnetic stripe 8 will not affect the exposure of the first included angle part 201 position in the first wire group 2 for heat dissipation, that is, it not only realizes the guiding effect of the magnetic field, but also realizes the heat dissipation effect without being affected by the position of the magnetic stripe 8. In this way, the first included angle part 201 position is improved to form an independent heating center, and the heat dissipation effect is better.

[0061] The magnetic stripe 8 of the present scheme can be directly bonded on the upper end face position of the first pressing wire part 4 and the second pressing wire part 5 by using silicone glue to realize the installation and fixation effect of the magnetic stripe 8. The installation groove can also be formed on the first pressing wire part 4 and the second pressing wire part 5 to limit the magnetic stripe 8, and the magnetic stripe 8 can be bonded and fixed in the installation groove.

[0062] In order to further improve the overall heat dissipation effect of the wire group part, in the present scheme, the heat dissipation area formed by the single first heat dissipation area 6 in the annular direction is greater than the coverage area formed by the single first pressing wire part 4 in the annular direction, and the heat dissipation area formed by the single second heat dissipation area 7 in the annular direction is more than twice the coverage area formed by the single second pressing wire part 5 in the annular direction. In this way, most of the first wire group 2 can be better heat dissipated, and the first included angle part 201 position in the first wire group 2 can be better heat dissipated, preventing the heat concentration caused by the bending of the single wire group from causing ineffective heat dissipation. At the same time, most of the second wire group 3 can be better heat dissipated, and the second included angle part 301 position in the second wire group 3 can be better heat dissipated, preventing the heat concentration caused by the bending of the single wire group from causing ineffective heat dissipation. In this way, the overall heat dissipation effect of the wire group part is improved, and the stability and reliability of the heating device during work are improved.

[0063] The setting of the position and heat dissipation area of ​​the second heat dissipation zone 7 not only enables the second wire group 3 to effectively dissipate heat, but also better dissipates the heat radiated from the first wire group 2 to the position of the second wire group 3, greatly improving the heat dissipation effect at the position of the second wire group 3.

[0064] In this design, the first wire group 2 and the second wire group 3 are connected to form a continuous single-wire winding structure. A connecting area 9 is provided between the first wire group 2 and the second wire group 3 along the radial direction of the support body 1. The connecting area 9 is located in an annular region between two adjacent first angle portions 201 and 301. The first wire group 2 and the second wire group 3 are connected within the connecting area 9 via single-wire windings. The location of the connecting area 9 allows for better connection between the first wire group 2 and the second wire group 3. Simultaneously, the connection area 9, along with the first pressing part 4 and the second pressing part... The structural position distribution of 5 facilitates the winding of single wire groups, simplifies the jumper structure of winding, and thus simplifies the winding process; and by setting the connection area 9 to connect the jumper positions and offset them from the first included angle portion 201 and the second included angle portion 301, the influence of the single wire group portion in the connection area 9 on the first included angle portion 201 and the second included angle portion 301 to form multiple heating centers is reduced, so that the magnetic field formed by the single wire group portion in the connection area 9 is less likely to interfere with the magnetism formed at the first included angle portion 201 and the second included angle portion 301, resulting in better stability of forming multiple heating centers.

[0065] To further improve the uniform heating effect, it is understood that in existing technologies, most cooking pots are designed with a relatively thick bottom wall and a relatively thin side wall. This allows the bottom wall of the cooking pot to have better resistance to dry burning, and because the thicker bottom wall can form a better heat conduction effect, thus resulting in a better uniform heating effect. In this structure of the cooking pot, by setting the distribution density of the first wire group 2 wound in the radial direction of the support body 1 to be greater than the distribution density of the second wire group 3 wound in the radial direction of the support body 1, a better uniform heating effect can be achieved. That is, the area corresponding to the first wire group 2 on the cooking pot, i.e., the bottom wall, is relatively thicker. The higher winding distribution density of the first wire group 2 can form a relatively larger heating intensity for stable heating, while the relatively smaller winding distribution density of the second wire group 3 can form a relatively smaller heating intensity for stable heating. The combination of the different thicknesses of the bottom and side walls of the cooking pot can achieve a better heating effect, and at the same time, it is easier for the cooking pot to boil quickly when simmering, thus forming a better uniform heating effect after boiling.

[0066] In order to further improve the effect of uniform heating, it can be understood that in the prior art, most of the cooking pots are structured with a relatively thick bottom wall and a relatively thin side wall, so that the bottom wall of the cooking pot can form a better dry burning resistance effect, because the thicker bottom wall can form a better heat conduction effect, thereby forming a better uniform heating effect. Under the structure of the cooking pot, by setting the winding number of the first wire group 2 to be more than twice the winding number of the second wire group 3, that is, the corresponding area of the first wire group 2 on the cooking pot is a relatively thick bottom wall, the relatively large winding number of the first wire group 2 can form a relatively large heating intensity for stable heating, and the relatively small winding number of the second wire group 3 can form a relatively small heating intensity for stable heating. Combining the different thicknesses of the bottom wall and the side wall of the cooking pot can achieve a better heating effect, and it is also beneficial to more easily and quickly boil when cooking in the cooking pot, thereby forming a better uniform heating effect in the cooking pot after boiling.

[0067] The cooking appliance of the present scheme includes an appliance body and a cooking pot, and further includes a heating module as described above. The heating module is arranged to be installed in the appliance body for electromagnetic induction heating of the cooking pot. The heating module is mainly installed in the appliance body, and the cooking pot can be placed in a placement cavity arranged on the appliance body in a detachable manner. This facilitates the user to place or remove the cooking pot. When the cooking pot is placed in position, the heating module performs electromagnetic induction heating of the cooking pot. The wire group part generates a magnetic field, and the first wire group 2 and the second wire group 3 generate a magnetic field. The magnetic field causes the cooking pot to heat itself. A plurality of heating centers are formed by the structural position distribution and distance limitation of the first wire group 2 and the second wire group 3. Each first angle part 201 corresponds to a position to form an independent heating center, and each second angle part 301 corresponds to a position to form an independent heating center. A plurality of heating centers are formed in the annular direction. The magnetic field generated by the heating device is distributed in the annular direction with strong and weak intervals. This forms a more uniform heating effect on the cooking pot and effectively prevents concentrated heating.

[0068] In the present scheme, the cooking appliance can be an electric rice cooker, an electric pressure cooker, or a cooking pot with a cooking function. The heating device of the present scheme can achieve a better uniform heating effect.

[0069] In the present scheme, the unmentioned parts adopt or refer to the prior art.

[0070] Working Principle: The heating module of this solution, through the structure of the line group section, forms a polygonal structure for both the first line group 2 and the second line group 3. The positional distribution of the first line group 2 and the distance between them are defined, allowing multiple heating centers to be formed at the outer edges of both the first and second line groups 2 and 3. These multiple heating centers form a staggered, alternating structure in a circular direction, resulting in better uniform heating of the cooking pot and effectively preventing concentrated heating. Simultaneously, the area between the first and second line groups 2 and 3 also provides better uniform heating when the corresponding area on the cooking pot is heated. Furthermore, this increases the heating area of ​​the cooking pot, as the multiple heating centers create a larger heating zone, promoting heat diffusion. This diffusion effect extends to the bottom and side walls of the cooking pot, further increasing the heating area and simultaneously improving uniform heating.

[0071] Those skilled in the art will understand that the above embodiments are specific implementations of the present utility model. In practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present utility model, and all such changes are within the protection scope of the present utility model.

Claims

1. A heating module, comprising a support body, the support body being configured as a three-dimensional structure in the form of a concave disk, characterized in that: The support body is provided with a first winding area and a second winding area. The first winding area and the second winding area are spaced apart from each other in the inner and outer directions of the support body and are independent of each other. It also includes a wire group section, which is provided with a first wire group and a second wire group. The first wire group is wound in a first winding area, and the second wire group is wound in a second winding area. The first line group is set to have a polygonal structure, and the second line group is also set to have a polygonal structure, with the number of sides in the polygonal structure of the second line group being greater than or equal to the number of sides in the polygonal structure of the first line group. The first line group is provided with a first included angle portion that forms a convex structure in the direction of the outside of the support body between any two adjacent sides, and the second line group is provided with a second included angle portion that forms a convex structure in the direction of the outside of the support body between any two adjacent sides, and the first included angle portion and the second included angle portion are staggered in the annular direction of the support body. Let H0 be the coverage distance formed by the area corresponding to the second angle in the first line group along the radial direction of the support body. Let H be the vertical distance from the inner edge of the second angle to the outer edge of the area corresponding to its position in the first line group. Let H be greater than or equal to half of H0 and less than or equal to H0. Let H1 be the vertical distance from the outer edge of the first angle to the inner edge of the area corresponding to its position in the second line group. Let H1 be less than half of H0.

2. The heating module according to claim 1, characterized in that: The first wire group is set to a tightly wound structure with a rectangular cross-section, and the thickness formed by the first wire group in the vertical direction is set to H2, and H1 is set to be greater than or equal to H2. Alternatively, the first wire group can be configured as a tightly wound structure with a rectangular cross-section, and the thickness H2 formed by the first wire group can be set to be greater than the thickness H3 formed by the second wire group, and H1 can be set to be greater than or equal to H2.

3. The heating module according to claim 2, characterized in that: The included angle A formed by the second included angle is set to be greater than or equal to the included angle B formed by the first included angle. Alternatively, the included angle A formed by the second included angle is set to be greater than or equal to the included angle B formed by the first included angle, and the number of turns of the first wire group is set to be greater than the number of turns of the second wire group.

4. The heating module according to claim 3, characterized in that: The coverage distance formed by the inner edge of the first included angle portion along the radial direction of the bracket body to the outer edge of the first included angle portion is set as L, and L is set to be greater than or equal to the sum of H0 and H2.

5. The heating module according to claim 2, 3 or 4, characterized in that: The main body of the bracket is provided with multiple first pressure wire portions, and a first winding area with a void structure is formed below the multiple first pressure wire portions. A first heat dissipation area is formed in the circumferential direction between two adjacent first pressure wire portions, and a first included angle portion is located in the first heat dissipation area and has an exposed structure. The main body of the bracket is provided with multiple second pressure wire parts, and a second winding area with a void structure is formed below the multiple second pressure wire parts. A second heat dissipation area is formed in the circumferential direction between two adjacent second pressure wire parts, and a second angled part is provided in the second heat dissipation area with an exposed structure.

6. The heating module according to claim 5, characterized in that: A magnetic strip is installed at the upper end of the first pressure part and / or the second pressure part; The first pressure line portion extends outward from the inside in the inward direction. When a magnetic strip is provided on the first pressure line portion, the projection area of ​​the first pressure line portion extending outward from the inside is configured to cover the second included angle portion corresponding to its position. And / or, the second pressure line portion extends outward from the inside in the inward direction and extends obliquely downward toward the main body of the bracket. When a magnetic strip is provided on the second pressure line portion, the projection area of ​​the second pressure line portion extending inward from the outside is configured to cover the first angle portion corresponding to its position.

7. The heating module according to claim 6, characterized in that: The heat dissipation area formed by a single first heat dissipation zone in the circumferential direction is greater than the coverage area formed by a single first pressure line in the circumferential direction, and the heat dissipation area formed by a single second heat dissipation zone in the circumferential direction is more than twice the coverage area formed by a single second pressure line in the circumferential direction.

8. The heating module according to claim 6, characterized in that: A connection area is provided between the first wire group and the second wire group, and the connection area is located in an annular area between two adjacent first and second angle portions. The first wire group and the second wire group are connected within the connection area by a single wire group.

9. The heating module according to claim 6, 7 or 8, characterized in that: The distribution density of the first wire group wound in the radial direction of the support body is set to be greater than that of the second wire group wound in the radial direction of the support body. Alternatively, the number of turns in the first wire group can be set to be more than twice the number of turns in the second wire group.

10. A cooking utensil, comprising the utensil body and a cooking pot, characterized in that: It also includes the heating module according to any one of claims 1-9, wherein the heating module is configured to be installed in the appliance body for electromagnetic induction heating of the cooking pot.

Images