Electromagnetic heating conductor structure and electromagnetic heating cooking device
By designing the conductive main sections in the electromagnetic heating conductor structure in parallel or series, the problem of limitations in the existing electromagnetic heating coil heating area is solved, and uniform heating of the bottom and side walls of the pot is achieved.
Patent Information
- Application Number
- CN202311417149.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-27
- Publication Date
- 2025-04-29
AI Technical Summary
The heating area of the existing electromagnetic heating coil is limited and it is impossible to effectively heat the pot wall, resulting in the bottom of the pot and the wall of the pot is cool.
An electromagnetic heating conductor structure is designed, including a plurality of conductive body segments extending in the first direction, and current flows from the first end to the second end, defining a working area of the electromagnetic heating conductor structure. The conductive body segments of the conductor assembly are arranged in parallel or in series, connected by connecting segments, and shielding structures are arranged to optimize the magnetic field distribution.
Heating a wider area of the bottom of the heating container is achieved and heating can be extended to the side walls of the pot, improving heating uniformity and efficiency.
Smart Images
Figure CN119907155A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of cooking devices, and in particular to an electromagnetic heating conductor structure and an electromagnetic heating cooking device. Background Art
[0002] Induction heating cooking devices are used to heat heating containers such as pots through electromagnetic heating coils. Figure 1a to Figure 1c , Figure 1a and Figure 1b The arrows are the directions of magnetic flux lines. Figure 1c The arrows in the figure are eddy currents. When the conventional electromagnetic heating coil 100' is working, the heating coverage area is usually the area projected by the electromagnetic heating coil on the bottom of the pot 200'. The area beyond the electromagnetic heating coil, such as the pot wall, cannot be heated, which will cause the pot bottom to be hot and the pot wall to be cold. Summary of the invention
[0003] The main purpose of the present invention is to provide an electromagnetic heating conductor structure and an electromagnetic heating cooking device, aiming to improve the problem of limited heating area of electromagnetic heating coils in the prior art.
[0004] To achieve the above object, the present invention provides an electromagnetic heating conductor structure, comprising:
[0005] A conductor component has a first side and a second side opposite to each other, wherein the first side is used to face a heating container, and the conductor component includes a plurality of conductive body segments extending along a first direction, the plurality of conductive body segments have a first end and a second end located in the first direction, the plurality of conductive body segments are configured so that current flows from the first end to the second end thereof, and the plurality of conductive body segments define a working area of an electromagnetic heating conductor structure.
[0006] Optionally, among the multiple conductive body segments, at least two of the conductive body segments are connected in series via a connecting segment, and the connecting segment is outside the working area.
[0007] Optionally, among the multiple conductive body segments, at least two of the conductive body segments are arranged in parallel.
[0008] Optionally, two ends of at least two of the conductive main body segments arranged in parallel are correspondingly connected to two ends of a connecting segment, and the connecting segment is outside the working area.
[0009] Optionally, a first shielding structure is provided on the first side and / or the second side of the connecting section.
[0010] Optionally, the conductor assembly includes a plurality of conductors, and each of the conductive body segments corresponds to at least one segment of the plurality of conductors;
[0011] The length of the conductor is L, the distance between the first end and the second end of the conductor segment is D, and 1≤L / D≤3.
[0012] Optionally, the number of the conductive body segments is greater than or equal to 3.
[0013] Optionally, there is a winding gap between two adjacent conductive body segments.
[0014] Optionally, at least one of the winding gaps is greater than or equal to 2 mm.
[0015] Optionally, the electromagnetic heating conductor structure further includes a bracket;
[0016] The plurality of conductive body segments are arranged on one side of the bracket.
[0017] Optionally, a second shielding structure is provided on the second side of the plurality of conductive body segments.
[0018] Optionally, at least a portion of the structure of the bracket is made of soft magnetic material.
[0019] Optionally, the soft magnetic material includes one of ferrite, nanocrystal and silicon steel sheet.
[0020] Optionally, the working area is arranged in a square, circular, triangular, elliptical or racetrack shape.
[0021] The present invention also provides an electromagnetic heating cooking device, comprising an electromagnetic heating conductor structure, wherein the electromagnetic heating conductor structure comprises:
[0022] A conductor component has a first side and a second side opposite to each other, wherein the first side is used to face a heating container, and the conductor component includes a plurality of conductive body segments extending along a first direction, the plurality of conductive body segments have a first end and a second end located in the first direction, the plurality of conductive body segments are configured so that current flows from the first end to the second end thereof, and the plurality of conductive body segments define a working area of an electromagnetic heating conductor structure.
[0023] In the technical solution provided by the present invention, the conductor component has a first side and a second side opposite to each other, wherein the first side is used to face the heating container, and the conductor component includes a plurality of conductive main body segments extending along a first direction, wherein the plurality of conductive main body segments have a first end and a second end located in the first direction, and the plurality of conductive main body segments are configured so that current flows from the first end to the second end thereof, and the plurality of conductive main body segments define a working area of the electromagnetic heating conductor structure, wherein the working area has two ends located in the first direction and two sides connecting the two ends, and when working, the first side of the conductor component is configured to correspond to the heating container, and each of the conductive main body segments is passed with an alternating current, and according to Ampere's law, a single conductive main body segment The magnetic flux lines generated by the electric main segment are around the conductive main segment to form a closed magnetic field. The multiple conductive main segments work together to form magnetic flux lines on both sides of the working area, extending from one side of the working area to the first side of the conductor component and then to the other side of the working area to form a closed magnetic field. In this way, the magnetic field formed by the multiple conductive main segments extends to the outside of the working area on the one hand to have a wider magnetic field area, and extends to the first side of the conductor component to have a higher magnetic field distribution area, so that when the heating container is heated, a wider area of the bottom of the heating container can be heated, and it can extend to the side wall of the heating container to heat the side of the heating container. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0025] Figure 1a-Figure 1c A schematic diagram of an electromagnetic heating cooking device in the prior art;
[0026] Figure 2 A three-dimensional schematic diagram of an embodiment of an electromagnetic heating cooking device provided by the present invention;
[0027] Figure 2a-2b for Figure 2 Schematic diagram of magnetic flux lines and eddy currents when the electromagnetic heating cooking device is working;
[0028] Figure 3 for Figure 2 A three-dimensional schematic diagram of an electromagnetic heating conductor structure of an electromagnetic heating cooking device;
[0029] Figure 4 for Figure 3 Schematic diagram of the plane;
[0030] Figure 4a A schematic diagram of the working area of the present application and the prior art;
[0031] Figure 5 for Figure 3 Yet another embodiment of the conductor assembly is a plan view of a schematic diagram;
[0032] Figure 6 for Figure 3 Another schematic plan view of an embodiment of the conductor assembly;
[0033] Figure 7 for Figure 2 A three-dimensional schematic diagram of another embodiment of the electromagnetic heating conductor structure;
[0034] Figure 8 for Figure 2 A three-dimensional schematic diagram of yet another embodiment of the electromagnetic heating conductor structure;
[0035] Figure 9-13 for Figure 2 Schematic plan view of other embodiments of the electromagnetic heating conductor structure.
[0036] Description of Figure Numbers:
[0037]
[0038]
[0039] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0041] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0042] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. 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 the field to implement. When the combination of technical solutions is 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 the present invention.
[0043] The present invention provides an electromagnetic heating cooking device, such as Figure 2 The electromagnetic heating cooking device 1000 provided by the present invention is an embodiment. The arrows in the figure are magnetic flux lines. The electromagnetic heating cooking device 1000 can be an electromagnetic cooker, a pressure cooker, a cooking machine, etc. The electromagnetic heating cooking device 1000 includes an electromagnetic heating conductor structure 100 and a heating container 200. The heating container 200 can be a pot. The pot can be a frying pan, an arc bottom pot, etc. Specifically, in Figure 2 In the example, the pot is a curved bottom pot. Obviously, Figure 2 Only a part of the structure of the electromagnetic heating cooking device 1000 is shown. Usually, the electromagnetic heating cooking device 1000 also includes a shell, and the conductor component 1 is accommodated in the shell. Of course, an electric control component and the like are also arranged in the shell.
[0044] It should be noted that the electromagnetic heating conductor structure 100 can be sold as an independent intermediate product or component. For this purpose, the present invention also provides an electromagnetic heating conductor structure 100.
[0045] That is, the present invention provides an electromagnetic heating conductor structure 100 and an electromagnetic heating cooking device 1000 having the electromagnetic heating conductor structure 100 .
[0046] When the traditional electromagnetic heating coil disk (i.e., electromagnetic heating conductor structure) works, there are the following problems:
[0047] 1. The heating coil can only be projected to the position covered by the bottom of the pot. The pot wall position beyond the coil disk (the coil winding area) cannot be heated (due to the increase in the distance between the disks, the heating effect is poor or even cannot be heated);
[0048] 2. If the heat is concentrated too much in the center, the bottom of the dish will be easily burnt;
[0049] 3. During the heating process, the pot wall cannot be heated directly, but only relies on the heat conduction from the bottom of the pot, which results in a lower temperature of the pot wall. The residual water on the pot wall is difficult to evaporate, and it is easy to cause oil splashing when it falls into the hot oil during cooking;
[0050] 4. The pot wall is not heated directly, and the temperature in this area is relatively low, resulting in a lack of pot gas during cooking, and the fried dishes are not tasty.
[0051] Existing electromagnetic heating cooking devices solve the problem of pot wall heating:
[0052] One is to use a double-stage large coil and adjust the distance between the coil winding surface and the pot side wall, that is, the coil spacing, to achieve pot wall heating. The disadvantage is that the adjustable range of the coil spacing is limited, and the actual heating effect has no obvious improvement;
[0053] Second, a dish-shaped or concave wire coil is used for heating, and the stove panel is also made into a shape that matches the curvature (dish-shaped or concave). This kind of product can only be adapted to pots with a specific curvature, and is difficult to be compatible with other curvatures or flat-bottomed pots, resulting in low market acceptance;
[0054] The third is to use an intermediate heating body, such as a magnetic sandbag. The shape of the sandbag can change with the pot. After the sandbag is heated, the heat is transferred to the pot through the sandbag. The disadvantage is that the thermal efficiency is low, and the sandbag is a high-temperature object that can easily cause burns and other safety issues.
[0055] The fourth is to use infrared radiation heating, such as infrared resistance furnace, halogen tube light wave furnace to radiate heat to the pot wall. The disadvantages are low heating efficiency, high cost of thermal radiation insulation, and also the safety problem of high temperature burns.
[0056] Different from the above-mentioned electromagnetic heating conductor structure, the present invention provides a new electromagnetic heating conductor structure and an electromagnetic heating cooking device having the electromagnetic heating conductor structure.
[0057] See also Figure 2 , Figure 2 A three-dimensional schematic diagram of an embodiment of an electromagnetic heating cooking device provided by the present invention; Figure 2a The arrows in the figure are schematic diagrams of the magnetic flux lines when the electromagnetic heating cooking device is working. Figure 2b The arrows in the figure are schematic diagrams of eddy currents when the electromagnetic heating cooking device is working.
[0058] The present invention provides an electromagnetic heating cooking device, such as Figure 2 The electromagnetic heating cooking device 1000 provided by the present invention is an embodiment. The arrows in the figure are magnetic flux lines. The electromagnetic heating cooking device 1000 can be an electromagnetic cooker, a pressure cooker, a cooking machine, etc. The electromagnetic heating cooking device 1000 includes an electromagnetic heating conductor structure 100 and a heating container 200. The heating container 200 can be a pot. The pot can be a flat pan or an arc bottom pot. Specifically, Figure 2In the example, the pot is a curved bottom pot. Obviously, Figure 2 Only a part of the structure of the electromagnetic heating cooking device 1000 is shown. Usually, the electromagnetic heating cooking device 1000 also includes a shell, and the conductor component 1 is accommodated in the shell. Of course, an electric control component and the like are also arranged in the shell.
[0059] It should be noted that the electromagnetic heating conductor structure 100 can be sold as an independent intermediate product or component. For this purpose, the present invention also provides an electromagnetic heating conductor structure 100.
[0060] That is, the present invention provides an electromagnetic heating conductor structure 100 and an electromagnetic heating cooking device 1000 having the electromagnetic heating conductor structure 100 .
[0061] Please read Figure 2 , Figure 3 as well as Figure 4 The electromagnetic heating conductor structure 100 includes a conductor component 1, and the conductor component 1 has a first side and a second side (i.e., an upper side and a lower side) opposite to each other, wherein the first side is used to face the heating container 200, and the conductor component 1 includes a plurality of conductive body segments 11 extending along a first direction, and the plurality of conductive body segments 11 have a first end and a second end located in the first direction, and the plurality of conductive body segments 11 are configured so that current flows from the first end thereof to the second end, and the plurality of conductive body segments 11 define a working area 100a of the electromagnetic heating conductor structure 100.
[0062] like Figure 4a As shown, in the prior art, the coil winding is arranged along the circumference of the winding center, and its corresponding working area is a circular dotted area. From the middle of the winding area, the current directions on both sides of the winding area are opposite, while in the present application, multiple conductive main segments 11 define that the current directions of the conductive main segments 11 on both sides of the middle of the working area are consistent, that is, the working area 100 of the present application is the area where multiple conductive main segments 11 are distributed, that is, the area covered by multiple conductive main segments 11.
[0063] In the technical solution provided by the present invention, the conductor component 1 has a first side and a second side opposite to each other, wherein the first side is used to face the heating container 200, and the conductor component 1 includes a plurality of conductive main body segments 11 extending along a first direction, wherein the plurality of conductive main body segments 11 have a first end and a second end located in the first direction, and the plurality of conductive main body segments 11 are configured so that current flows from the first end to the second end thereof, and the plurality of conductive main body segments 11 define a working area 100a of the electromagnetic heating conductor structure 100, wherein the working area 100a has two ends located in the first direction and two sides connecting the two ends, and when working, the first side of the conductor component 1 is configured to correspond to the heating container 200, and each of the conductive main body segments 11 is passed with an alternating current, and according to Ampere's law, a single conductive main segment The magnetic flux lines generated by 11 are around the conductive main segment 11 to form a closed magnetic field. The multiple conductive main segments 11 work together to form magnetic flux lines on both sides of the working area 100a, extending from one side of the working area 100a to the first side of the conductor component 1, and then to the other side of the working area 100a to form a closed magnetic field. In this way, the magnetic field formed by the multiple conductive main segments 11 extends to the outside of the working area 100a on the one hand to have a wider magnetic field area, and extends to the first side of the conductor component 1 to have a higher magnetic field distribution area, so that when the heating container 200 is heated, a wider area of the bottom of the heating container 200 can be heated, and it can extend to the side wall of the heating container 200 to heat the side of the heating container 200.
[0064] It should be particularly pointed out that in the present invention, the multiple conductive main segments 11 extend along the first direction. Each of the conductive main segments 11 may extend along a straight line, a curve, or a broken line, without limitation. The conductive main segments 11 do not necessarily need to be parallel to the first direction, and may have a certain angle. In addition, the current flows of the multiple conductive main segments 11 in the first direction are consistent. In this way, it can be ensured that the magnetic fields formed by the multiple conductive main segments 11 have the effect of superimposing and increasing each other, so that there is a sufficiently strong magnetic field at the two side edges of the working area 100a to heat the side walls of the heating container 200.
[0065] In addition, the multiple conductive main segments 11 define the working area 100a, which does not mean that other conductive line segments cannot be set in the working area 100a. A small number of other conductive line segments can exist, but they should not affect the magnetic field of the conductive main segment 11 too much. This is different from the prior art, in a working area 100a, the current direction of the conductor segment on one side of the middle area is opposite to that of the conductor segment on the other side. In the embodiment of the present invention, the current direction of the conductive main segments 11 on both sides of the middle of the working area 100a is consistent, so that the magnetic field on both sides of the working area 100a is wide enough and the magnetic field height is high enough.
[0066] In the embodiments of the present invention, please read Figure 3 as well as Figure 4 Among the plurality of conductive body segments 11, at least two of the conductive body segments 11 are arranged in parallel, that is, at least part of the conductive body segments 11 are arranged in parallel, or all of the conductive body segments 11 are arranged in parallel. Figure 3 and Figure 4 In the embodiment, the plurality of conductive body segments 11 are arranged in parallel, that is, the plurality of conductive body segments 11 are conductors extending along the first direction. More specifically, the first ends and the second ends of the plurality of conductive body segments 11 form two power connection terminals. In another embodiment of the present invention, Figure 5 As shown, at least two ends of the conductive main segments 11 arranged in parallel are connected to the two ends of a connecting segment 12, and the connecting segment 12 is outside the working area 100a, thereby reducing the influence of the magnetic field generated by the conductive segments with inconsistent current directions on the working area 100a.
[0067] In the embodiments of the present invention, please refer to Figure 6 Among the multiple conductive main segments 11, at least two of the conductive main segments 11 are connected in series through a connecting segment 12, and the connecting segment 12 is outside the working area 100a. That is, the multiple conductive main segments 11 are extended along the first direction, and the current flows in a basically consistent manner. It is not limited to the parallel form, and can also be achieved in series. In order to reduce the influence of the magnetic field generated by the conductive segments with inconsistent current directions on the working area 100a, the connecting segment 12 is outside the working area 100a.
[0068] Obviously, the plurality of conductive body segments 11 may also be in a mixed form of series and parallel connection, wherein at least two conductive body segments 11 are connected in series through a connecting segment 12, wherein the connecting segment 12 is located outside the working area 100a, and at least two conductive body segments 11 are arranged in parallel. Specifically, in the embodiment of the present invention, please refer to Figure 6, the number of the plurality of conductive main segments 11 is 5, corresponding to the figure showing that there are at least 5 conductive main segments 11 from left to right in the working area 100a, which are correspondingly named as the first conductive main segment 11, the second conductive main segment 11, the third conductive main segment 11, the fourth conductive main segment 11 and the fifth conductive main segment 11, wherein the first conductive main segment 11 and the second conductive main segment 11 are connected in series and are connected through a connecting segment 12 located on the left side of the working area 100a, the fourth conductive main segment 11 and the fifth conductive main line are connected in series and are connected through a connecting segment 12 located on the right side of the working area 100a, and the three conductive main segments 11 are connected in parallel with the second conductive main segment 11 and the fourth conductive main segment 11.
[0069] In an embodiment of the present invention, a first shielding structure (not shown) is provided on the first side and / or the second side of the connecting section 12, that is, the first shielding structure is provided on the first side of the connecting section 12, or the first shielding structure is provided on the second side of the connecting section 12, or both the first side and the second side of the connecting section 12 are provided with the first shielding structure. When the first shielding structure is provided on the first side of the connecting section 12, the magnetic field generated by the connecting section 12 is prevented from canceling out the magnetic field generated by the conductive main section 11 on the first side of the conductor component 1; when the first shielding structure is provided on the second side of the connecting section 12, the magnetic field generated by the connecting section 12 is prevented from heating the metal device located on the second side of the conductor component 1.
[0070] In an embodiment of the present invention, the conductor assembly 1 includes multiple conductors, each of the conductive main segments 11 corresponds to at least one segment of the multiple conductors, or one conductor may form one conductive main segment 11, or one conductor may form multiple conductive main segments 11, or it may also include a connecting segment 12, the length of the conductor is L, the distance between the first end and the second end of the conductor segment is D, 1≤L / D≤3, obviously, L is at least equal to D, that is, one conductor forms one conductive main segment 11 and the conductor is arranged in a straight line, of course, the conductor may also be arranged in a curve, or it may include multiple conductive main segments 11, of course, L cannot be too large, considering the difficulty of setting, so L / D≤3.
[0071] In an embodiment of the present invention, there are multiple conductive main segments 11, and the specific number is not limited and depends on the actual heating needs. Generally speaking, the number of the conductive main segments 11 is greater than or equal to 3, otherwise the conductive main segments 11 need to have a sufficiently large current to achieve the heating effect, and excessive current may cause safety hazards.
[0072] There may or may not be gaps between the conductive main segments 11. The gaps are usually referred to as "dense winding", while the gaps are usually referred to as "sparse winding". In an embodiment of the present invention, there is a winding gap between two adjacent conductive main segments 11. Compared with the "dense winding" without gaps, the "sparse winding" with winding gaps is more evenly heated, especially when the conductive main segment 11 with the winding gap is set in the middle position of the working area 100a, because the middle position of the working area 100a usually corresponds to the middle position of the bottom of the heating container 200, and the middle position is prone to heating concentration, which is not conducive to uniform heating.
[0073] There is no restriction on the size of the winding gap. In an embodiment of the present invention, at least one of the winding gaps is greater than or equal to 2 mm. Therefore, the magnetic field generated between the two adjacent conductive main segments 11 is less likely to overlap, thereby better improving the problem of heating concentration.
[0074] In the embodiments of the present invention, please refer to Figure 2 The conductor component 1 is flatly arranged to have a thickness direction. Accordingly, the electromagnetic heating conductor structure 100 can also be flatly arranged, so that the electromagnetic heating conductor structure 100 does not need to occupy too much thickness space, which is beneficial to the arrangement of the electromagnetic heating conductor structure 100 in the shell of the electromagnetic heating cooking device 1000, and is beneficial to the lightweight setting of the electromagnetic heating cooking device 1000. In particular, for the heating container 200 that requires side wall heating, it is no longer necessary for the conductor component 1 to be concave or a more complex shape or heating method.
[0075] Generally speaking, the conductor component 1 does not exist alone, and the electromagnetic heating conductor structure 100 also needs to provide a structure for fixing and supporting the conductor component 1. Of course, in some embodiments, such as Figures 3 to 6 The conductor component 1 can exist independently and can be shaped by colloid. In other embodiments of the present invention, such as Figures 7 and 8 The electromagnetic heating conductor structure 100 also includes a bracket 2, and the multiple conductive main segments 11 are arranged on one side of the bracket 2, that is, in the conductor component 1, at least the multiple conductive main segments 11 are arranged on one side of the bracket 2. Obviously, in one embodiment of the present invention, it can also be that the conductor component 1 is arranged on one side of the bracket 2, that is, the conductor component 1 is arranged as a whole on one side of the bracket 2, so as to facilitate the layout of the conductor component 1.
[0076] Furthermore, in the embodiment of the present invention, the bracket 2 is flat, which facilitates the arrangement of the electromagnetic heating conductor structure 100 in the housing of the electromagnetic heating cooking device 1000 to reduce space. The bracket 2 may be provided with one conductor assembly 1 or multiple conductor assemblies 1, depending on the design requirements.
[0077] The material of the bracket 2 is not limited. For example, the material of the bracket 2 can be plastic, ceramic, or a non-fixed and deformable material such as glue. Specifically, in the embodiment of the present invention, the material of at least part of the structure of the bracket 2 is set to a soft magnetic material, that is, the bracket 2 can be partially made of soft magnetic material. For example, a groove is set in the middle of the bracket 2, and a soft magnetic material is set in the groove, or all of the bracket 2 can be made of soft magnetic material. The setting of the soft magnetic material enables the bracket 2 to gather magnetic lines of force to prevent the magnetic lines of force of the winding unit from spreading outward, thereby greatly improving the heating performance of the conductor component 1. Obviously, the bracket 2 can also be integrated, and its material is soft magnetic material.
[0078] The soft magnetic material is not specifically limited. In an embodiment of the present invention, the soft magnetic material includes one of ferrite, nanocrystal and silicon steel sheet.
[0079] In an embodiment of the present invention, a second shielding structure is provided on the second side of the multiple conductive main body segments 11, and the second shielding structure can shield the magnetic field of the multiple conductive main body segments 11 from leaking to the second side of the conductor component 1, thereby avoiding heating of metal devices located on the second side of the conductor component 1. For example, when the electromagnetic heating cooking device 1000 is an induction cooker and the supporting table is a metal table, the electromagnetic field is avoided from diffusing to the metal table and heating the metal table. For another example, a circuit board is provided on the second side of the conductor component 1 in the shell of the electromagnetic heating cooking device 1000, thereby avoiding influence on the circuit board. In short, the provision of the second shielding structure can play a role in eliminating the adverse effects caused by the diffusion of the electromagnetic field.
[0080] The shape of the working area 100a is not limited. Figures 9 to 13Specifically, according to the needs of the heating container 200, if the bottom of the heating container 200 is circular, the shape of the working area 100a is circular, if the bottom of the heating container 200 is elliptical, the shape of the working area 100a is elliptical, and if the bottom of the heating container 200 is square, the shape of the working area 100a is square. Therefore, in the embodiment of the present invention, the working area 100a is square, circular, triangular, elliptical or runway-shaped. For the embodiment in which the bracket 2 is present, the shape of the bracket 2 is substantially consistent with the shape of the working area 100a. Therefore, in the embodiment of the present invention, the bracket 2 is square, circular, triangular, elliptical or runway-shaped.
[0081] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. An electromagnetic heating conductor structure (100), characterized in that: include: A conductor component (1) has a first side and a second side opposite to each other, wherein the first side is used to face a heating container (200), the conductor component (1) includes a plurality of conductive body segments (11) extending along a first direction, the plurality of conductive body segments (11) having a first end and a second end located in the first direction, the plurality of conductive body segments (11) being configured such that current flows from the first end to the second end thereof, and the plurality of conductive body segments (11) defining a working area (100a) of an electromagnetic heating conductor structure (100).
2. The electromagnetic heating conductor structure (100) according to claim 1, characterized in that: Among the plurality of conductive body segments (11), at least two of the conductive body segments (11) are connected via a connecting segment (12) and are arranged in series, and the connecting segment (12) is located outside the working area (100a).
3. The electromagnetic heating conductor structure (100) according to claim 1, characterized in that: Among the plurality of conductive body segments (11), at least two conductive body segments (11) are arranged in parallel.
4. The electromagnetic heating conductor structure (100) according to claim 3, characterized in that: The two ends of at least two of the conductive main body segments (11) arranged in parallel are correspondingly connected to the two ends of a connecting segment (12), and the connecting segment (12) is located outside the working area (100a).
5. The electromagnetic heating conductor structure (100) according to claim 2 or 4, characterized in that: A first shielding structure is provided on the first side and / or the second side of the connecting section (12).
6. The electromagnetic heating conductor structure (100) according to any one of claims 1 to 4, characterized in that: The conductor assembly (1) comprises a plurality of conductors, and each of the conductive body segments (11) corresponds to at least one segment of the plurality of conductors; The length of the conductor is L, the distance between the first end and the second end of the conductor segment is D, and 1≤L / D≤3.
7. The electromagnetic heating conductor structure (100) according to any one of claims 1 to 4, characterized in that: The number of the conductive body segments (11) is greater than or equal to 3.
8. The electromagnetic heating conductor structure (100) according to any one of claims 1 to 4, characterized in that: There is a winding gap between two adjacent conductive body segments (11).
9. The electromagnetic heating conductor structure (100) according to claim 8, characterized in that: At least one of the winding gaps is greater than or equal to 2 mm.
10. The electromagnetic heating conductor structure (100) according to claim 1, characterized in that: The electromagnetic heating conductor structure (100) further comprises a bracket (2); The plurality of conductive body segments (11) are arranged on one side of the bracket (2).
11. The electromagnetic heating conductor structure (100) according to claim 10, characterized in that: The conductor component (1) is arranged on one side of the bracket (2).
12. The electromagnetic heating conductor structure (100) according to claim 1, 10 or 11, characterized in that: A second shielding structure is provided on the second side of the plurality of conductive body segments (11).
13. The electromagnetic heating conductor structure (100) according to claim 10, characterized in that: The material of at least a part of the structure of the support (2) is set to be a soft magnetic material.
14. The electromagnetic heating conductor structure (100) according to claim 13, characterized in that: The soft magnetic material includes one of ferrite, nanocrystal and silicon steel sheet.
15. The electromagnetic heating conductor structure (100) according to claim 1, characterized in that: The working area (100a) is arranged in a square, circular, triangular, elliptical or racetrack shape.
16. An electromagnetic heating cooking device (1000), characterized in that: The electromagnetic heating conductor structure (100) comprises the electromagnetic heating conductor structure (100) according to any one of claims 1 to 15.