CN106937426B

CN106937426B - Inner pot suitable for electromagnetic heating

Info

Publication number: CN106937426B
Application number: CN201511034524.3A
Authority: CN
Inventors: 徐腾飞; 吴培洪; 黄宇华
Original assignee: Midea Group Co Ltd; Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date: 2015-12-31
Filing date: 2015-12-31
Publication date: 2021-05-25
Anticipated expiration: 2035-12-31
Also published as: CN106937426A

Abstract

The invention discloses an inner pot suitable for electromagnetic heating, which comprises: the pot comprises an insulating pot body, a magnetic conduction layer and a conductive layer. The magnetic conduction layer is arranged on the bottom wall of the insulating pot body, and the magnetic conduction layer extends along the circumferential direction of the insulating inner pot. The conducting layer is arranged on the bottom wall of the insulating pot body, and the conducting layer and the magnetic conduction layer are connected in series to form a loop. According to the inner pot suitable for electromagnetic heating, the magnetic conduction layer and the conductive layer are arranged on the bottom wall of the inner pot and are connected in series, so that a closed loop can be formed between the magnetic conduction layer and the conductive layer, the bottom wall of the inner pot can be heated, and the heating area of the bottom wall of the inner pot can be expanded to a certain extent.

Description

Inner pot suitable for electromagnetic heating

Technical Field

The invention relates to the technical field of household appliances, in particular to an inner pot suitable for electromagnetic heating.

Background

In the related art, the surfaces of the cookware (including the bottom surface and the side surfaces) are provided with magnetic conduction layers, and the cookware can be placed on a magnetic oven to generate heat through electromagnetic induction, so that cooking is realized. However, when the induction cooker heats the pot, it is usually only possible to realize that the part opposite to the induction cooker heating coil has heat, and the part outside the induction cooker heating coil does not have heat, and when the bottom of the pot is large, heating is not uniform.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, the invention proposes an inner pan suitable for electromagnetic heating, which can enlarge the heating zone of the bottom to some extent.

The inner pot suitable for electromagnetic heating according to the embodiment of the invention comprises: the pot comprises an insulating pot body, a magnetic conduction layer and a conductive layer. The magnetic conduction layer is arranged on the bottom wall of the insulating pot body, and the magnetic conduction layer extends along the circumferential direction of the insulating pot body. The conducting layer is arranged on the bottom wall of the insulating pot body, and the conducting layer and the magnetic conduction layer are connected in series to form a loop.

According to the inner pot suitable for electromagnetic heating, due to the fact that the magnetic conduction layer and the conducting layer are connected in series, when current is generated through induction, the current can flow along the magnetic conduction layer and the conducting layer. In other words, heat can be generated through the conducting layer and the magnetic conduction layer, so that the positions of the conducting layer and the magnetic conduction layer can be set as required, heating of a preset position can be achieved, and the heating area of the bottom wall of the inner pot can be properly enlarged under the condition that the magnetic conduction layer and the conducting layer are reasonably arranged.

In addition, the inner pot suitable for electromagnetic heating according to the above embodiment of the present invention may further have the following additional technical features:

according to one embodiment of the invention, the conductive layer comprises a first conductive segment and a second conductive segment spaced apart from each other, the first conductive segment, the second conductive segment and the magnetically permeable layer being connected in series to form a loop.

Furthermore, one end of the first conductive segment is connected with one end of the magnetic conductive layer and extends in a direction away from the magnetic conductive layer in a roundabout manner, one end of the second conductive segment is connected with the other end of the magnetic conductive layer and extends in a direction away from the magnetic conductive layer in a roundabout manner, and the other end of the first conductive segment is connected with the other end of the second conductive segment.

Further, the first conducting section with the second conducting section all is located the outside of magnetic conduction layer, first conducting section includes by inside to outside interval arrangement and a plurality of first arc busbar that concatenate in proper order, the second conducting section includes by inside to outside interval arrangement and a plurality of second arc busbar that concatenate in proper order, is located an innermost first arc busbar with magnetic conduction layer links to each other, and is located an innermost second arc busbar with magnetic conduction layer links to each other, and a first arc busbar that is located the outside links to each other with the second arc busbar that is located the outside.

Further, the first arc-shaped conductive strip, the second arc-shaped conductive strip and the magnetic conduction layer are in concentric circular arc shapes.

According to one embodiment of the invention, the conductive layer is arranged on the outer side of the magnetic conduction layer and comprises a plurality of spiral rings which are spaced from each other, each spiral ring spirally extends from inside to outside along the circumferential direction of the insulating pot body, the spiral rings are spirally arranged in the same direction and are nested, and the spiral rings are connected in series.

According to one embodiment of the present invention, the magnetic conductive layer is annular and has a notch, and the conductive layer is connected to two ends of the notch of the magnetic conductive layer to form a loop.

Furthermore, an induction heating layer positioned on the inner side of the magnetic conduction layer is arranged on the insulating pot body.

According to some embodiments of the invention, the magnetically conductive layer is ring-shaped with a gap, and the electrically conductive layer is symmetrical about an axis of symmetry of the magnetically conductive layer.

According to some embodiments of the invention, the magnetic conduction layer is located in the middle of the bottom wall of the insulating pot body, and the conductive layer is connected with the magnetic conduction layer and covers the periphery of the bottom wall of the insulating pot body outwards.

Further, the bottom wall periphery of the insulating pot body has a radius, and the conductive layer is covered to be adjacent to the radius or the conductive layer is covered to be on the radius.

According to some embodiments of the invention, the width of the magnetically permeable layer is greater than the width of the electrically conductive layer.

Optionally, the conductive layer is a magnetic-resistance conductive layer, and the insulating pot body is a ceramic pot body with an open top.

According to some embodiments of the invention, the conductive layer is in the shape of a curved strip and covers the bottom wall of the insulating pot.

Furthermore, at least one of the conducting layers and the magnetic conduction layers comprises a plurality of conducting layers, each conducting layer is connected with at least one magnetic conduction layer in series to form a loop, and each magnetic conduction layer is connected with at least one conducting layer in series to form a loop.

Advantageously, the conducting layer comprises a plurality of conducting layers, and the conducting layers are connected in parallel and then connected in series with the magnetic conducting layer to form a loop.

Furthermore, the magnetic conduction layers comprise a plurality of magnetic conduction layers, and the magnetic conduction layers are connected in parallel and then connected with the conducting layer to form a loop.

Advantageously, the magnetic conduction layers include a plurality of mutually independent magnetic conduction layers, the conductive layers include a plurality of mutually independent magnetic conduction layers corresponding to the plurality of magnetic conduction layers one to one, and each conductive layer is connected with the corresponding magnetic conduction layer in series to form a loop.

In some embodiments of the invention, the total length of the electrically conductive layer is greater than the length of the magnetically permeable layer extending in the circumferential direction.

Drawings

Fig. 1 is a schematic view of an inner pan adapted for electromagnetic heating in accordance with an embodiment of the present invention.

Reference numerals:

inner pot 100, insulating pot body 11, radius 111, magnetic conduction layer 12, magnetic conduction layer's one end 121, magnetic conduction layer's the other end 122, breach 123, conducting layer 13, first conducting segment 131, second conducting segment 132, first arc conducting strip 137, second arc conducting strip 138.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

An inner pot 100 suitable for electromagnetic heating according to an embodiment of the present invention is described in detail below with reference to fig. 1.

Referring to fig. 1, an inner pot 100 adapted for electromagnetic heating according to an embodiment of the present invention includes: insulating pot body 11, magnetic conduction layer 12 and conducting layer 13.

Specifically, as shown in fig. 1, the magnetic conduction layer 12 may be disposed on the bottom wall of the insulating pot body 11, and the magnetic conduction layer 12 may extend along the circumferential direction of the insulating pot body 11. The conductive layer 13 can be disposed on the bottom wall of the insulating pot 11, and the conductive layer 13 can be connected in series with the magnetic conduction layer 12 to form a loop. Therefore, the bottom wall of the inner pot 100 can be heated by the magnetic conduction layer 12 and the conductive layer 13 together, so that the heating area of the bottom of the inner pot can be enlarged.

In the cooking utensil with this interior pot 100, make induction coil and the relative magnetic conduction layer 12 on the interior pot 100, consequently, induction coil is at the circular telegram in-process, and alternating current will produce induction magnetic field after passing through magnetic conduction layer 12, and magnetic conduction layer 12 that is arranged in alternating induction magnetic field will produce induction electric field, because conducting layer 13 and magnetic conduction layer 12 concatenate, induction electric field that magnetic conduction layer 12 produced will produce the electric current in magnetic conduction layer 12 and the conducting layer 13 of establishing ties, and the electric current effect produces the bottom of heat to interior pot 100 and heats.

Wherein, as can be understood by those skilled in the art, the induction coil referred to in the present invention is opposite to (or corresponding to) the magnetically permeable layer 12, and means: when the induction coil is energized, the induction magnetic field generated by the induction coil will cover at least a portion of the magnetically permeable layer 12.

In addition, the coverage area of the induction coil referred to in the present invention means: when the induction coil is electrified, the coverage range of an induction magnetic field generated by the induction coil is covered; or the effective coverage area of the induction magnetic field generated by the induction coil, that is, the induction magnetic field generated by the induction coil is stronger in the coverage area of the induction coil, and an appropriate induced electromotive force can be generated on the magnetic conduction layer 12 through the induction magnetic field to form an induction electric field to heat the inner pot. For example, the term induction coil covering the entire magnetically permeable layer 12 as used herein means that the induction coil generates an induction magnetic field covering the entire magnetically permeable layer 12.

According to the inner pot 100 suitable for electromagnetic heating of the embodiment of the present invention, since the magnetic conductive layer 12 and the conductive layer 13 are connected in series, when a current is induced, the current will flow along the magnetic conductive layer 12 and the conductive layer 13. In other words, heat can be generated through the conductive layer 13 and the magnetic conduction layer 12, and the positions of the conductive layer 13 and the magnetic conduction layer 12 can be set as required, so that heating of a preset position can be realized, and the heating area of the bottom wall of the inner pot can be properly enlarged under the condition that the magnetic conduction layer 12 and the conductive layer 13 are reasonably arranged.

In addition, it can be understood by those skilled in the art that both the conductive layer 12 and the conductive layer 13 can generate heat by current, and the conductive layer 13 and the conductive layer 12 can be made of the same or different materials according to the actual application. For example, the magnetic conductive layer 12 may be made of iron, and the conductive layer 13 may be made of iron, aluminum, copper, or the like.

To increase the density of the conductive layer 13, the conductive layer 13 may be laid in a meandering, spiral or other manner. For example, the conductive layer 13 may be arranged to extend from the periphery of the upper bottom wall of the insulating pot 11 to the middle of the conductive layer 13, and two ends of the conductive layer 13 may be connected to two ends of the magnetic conductive layer 12, respectively. The conductive layer 13 of some embodiments of the present invention is described below with reference to the drawings.

Referring to fig. 1, conductive layer 13 may include first and second

conductive segments

131 and 132 spaced apart from each other, and first conductive segment 131, second conductive segment 132, and magnetically permeable layer 12 may be connected in series with each other to form a loop. Thereby, an electric current can flow through the loop formed by the conductive layer 13 and the magnetically permeable layer 12, so that heat can be generated to heat the bottom of the inner pot 100.

The conductive layer 13 may have other shapes such as a zigzag shape or a zigzag shape as long as the circuit can be covered on the bottom wall of the inner pot 100.

Further, as shown in fig. 1, one end 133 of first conductive segment 131 may be connected to one end 121 of magnetic conductive layer 12 and extend circuitously away from magnetic conductive layer 12, one end 134 of second conductive segment 132 may be connected to another end 122 of magnetic conductive layer 12 and extend circuitously away from magnetic conductive layer 12, and another end 135 of first conductive segment 131 may be connected to another end 136 of second conductive segment 132. Thereby, a closed loop can be formed between the conductive layer 13 and the magnetic conduction layer 12, so that the bottom wall of the inner pot 100 can be heated.

Referring to fig. 1, the first conductive segment 131 and the second conductive segment 132 may be located at an outer side of the magnetic conductive layer 12 (e.g., a side away from the center line of the inner pot 100 in fig. 1), the first conductive segment 131 may include a plurality of first arc conductive strips 137 arranged at intervals from inside to outside and connected in series in sequence, the second conductive segment 132 may include a plurality of second arc conductive strips 138 arranged at intervals from inside to outside and connected in series in sequence, one first arc conductive strip 137 located at an innermost side (e.g., a side adjacent to the center line of the inner pot 100 in fig. 1) may be connected to the magnetic conductive layer 12, one second arc conductive strip 138 located at the innermost side may be connected to the magnetic conductive layer 12, and the first arc conductive strip 137 located at an outermost side may be connected to the second arc conductive strip 138 located at the outermost side. Therefore, the heating area of the bottom of the inner pot 100 can be enlarged, and the bottom of the inner pot can be heated more uniformly.

Further, referring to fig. 1, the first arc-shaped conductive strip 137, the second arc-shaped conductive strip 138 and the magnetic conductive layer 12 may be shaped as concentric arcs. Therefore, the inner pot 100 can be easily manufactured, and the heating uniformity of the bottom of the inner pot can be ensured.

Of course, the first arc-shaped conductive strip 137, the second arc-shaped conductive strip 138 and the magnetic conductive layer 12 can also have other shapes, such as rectangular shapes, oval shapes and the like in a nested arrangement. The shapes of the first arc-shaped conductive strip 137, the second arc-shaped conductive strip 138 and the magnetic conduction layer 12 are not particularly limited, and can be adaptively selected according to the needs in practical application.

As shown in fig. 1, in some embodiments of the present invention, the conductive layer 13 may be disposed on the outer side of the magnetic conductive layer 12 (for example, on the side away from the center line of the inner pot 100 in fig. 1), and the conductive layer 13 may include a plurality of spiral rings spaced apart from each other, each of which may spirally extend from inside to outside along the circumferential direction of the insulating pot body 11, the plurality of spiral rings are spirally arranged in the same direction and in a nested manner, and the plurality of spiral rings may be connected in series. Thereby, the number of turns of the spiral ring is increased, which is equivalent to the situation that the length of the single spiral ring is not changed, so that the bottom wall of the inner pot is heated more uniformly.

The number of the spiral rings may be two, three, four, five, or the like, and these plural spiral rings may be connected in parallel or in series.

Preferably, a plurality of spiral loops may be connected in series, thereby facilitating the passage of current, so that the current is substantially the same throughout the conductive layer 13, thereby ensuring uniform power throughout the conductive layer 13 and facilitating uniform heat distribution.

Specifically, in one embodiment of the present invention, there are two spiral rings, the two spiral rings are respectively connected to two ends of the magnetic conduction layer 12, and both spiral rings spirally extend to the periphery of the bottom wall of the insulating pot body from inside to outside along the circumferential direction of the insulating pot body, and the outer ends of the two spiral rings are connected together.

According to an embodiment of the present invention, the magnetic conductive layer 12 may be a ring shape having a gap 123, and the conductive layer 13 may be connected to two ends of the magnetic conductive layer at the gap to form a loop. Therefore, favorable conditions can be provided for heating the bottom of the inner pot, magnetic conductive materials can be saved, and the cost is reduced.

Further, as shown in fig. 1, an induction heating layer located inside the magnetic conduction layer 12 may be disposed on the insulating pot body 11. Thereby, heating of the bottom central region of the inner pot 100 may be achieved by the induction heating layer.

Specifically, the magnetic conduction layer 12 is a region for forming induced electromotive force, the circular region in the middle of the magnetic conduction layer 12 is an induction heating layer, and the area of the induction heating coil of the induction furnace at least covers the induced electromotive force region of the magnetic conduction layer 12. Thus, when the inner pot 100 is placed on a magnetic oven for heating, the induction heating layer can generate heat inductively, and the induced electromotive force portion of the magnetic conduction layer 12 can generate heat by being connected to the conductive layer 13. This can enlarge the heating area of the bottom of the inner pot 100.

Referring to fig. 1, both the conductive layer 13 and the magnetic conductive layer 12 may be axisymmetric, and the symmetry axes of the conductive layer 13 and the magnetic conductive layer 12 may coincide.

Specifically, referring to fig. 1, the magnetic conductive layer 12 may have a circular ring shape with a notch 123, and the conductive layer 13 may be symmetrical with respect to a symmetry axis of the magnetic conductive layer 12. Therefore, the heat can be more uniformly distributed on the bottom wall of the inner pot.

For example, in the example of fig. 1, both ends of the magnetically permeable layer 12 (e.g., one end 121 and the other end 122 of the magnetically permeable layer 12 in fig. 1) may be connected to the conductive layer 13, respectively. In this way, the magnetic conduction layer 12 can be an uninterrupted whole, so that a closed curve loop can be formed on the bottom wall of the inner pot 100, and uniform heating of the bottom wall of the inner pot can be realized.

Referring to fig. 1, the magnetic conduction layer 12 may be located in the middle of the bottom wall of the insulating pot body 11, and the conductive layer 13 may be connected to the magnetic conduction layer 12 and may cover the periphery of the bottom wall of the insulating pot body 11. From this, not only can realize the heating to the middle part of the diapire of the insulating pot body 11 through magnetic conduction layer 12, can also realize the heating to the periphery of the diapire of the insulating pot body 11 through conducting layer 13, and conducting layer 13 links to each other with magnetic conduction layer 12, can enlarge the heating region of interior pot diapire like this.

Preferably, in conjunction with fig. 1, the bottom wall of insulating pot 11 may have a radius 111 at its periphery, and conductive layer 13 may be overlaid adjacent to radius 111 or conductive layer 13 may be overlaid onto radius 111. This allows to enlarge the coverage area of the conductive layer 13 to a certain extent and thus to enlarge the heating area of the bottom of the inner pot.

In addition, the conductive layer 13 is covered to be adjacent to the round 111 or the conductive layer 13 is covered to be on the round 111, which should be understood as follows: at least a portion of the bottom wall of insulated pot 11 may be located within the coverage of conductive layer 13. Since the conductive layer 13 may be in the form of separate segments, the coverage of the conductive layer 13 should include the gaps formed by the separation of the segments of the conductive layer 13.

According to one embodiment of the present invention, as shown in fig. 1, the width of the magnetically permeable layer 12 may be greater than the width of the electrically conductive layer 13. Thereby, the bottom wall of the inner pot 100 can be uniformly heated.

Alternatively, conductive layer 13 may be a magnetic and magnetic resistant conductive layer and insulating pan body 11 may be an open-topped ceramic pan body.

Preferably, the conductive layer 13 is a magnetic-blocking conductive layer so that the conductive layer 13 is as non-conductive as possible. Therefore, magnetic interference is not easily formed between the conductive layer 13 and the magnetic conduction layer 12, and the bottom wall of the inner pot 100 can be effectively heated.

Alternatively, conductive layer 13 may be in the form of a curved strip and may cover the bottom wall of insulating pan body 11. This is advantageous in that the length of the conductive layer 13 is increased to ensure uniformity of heating.

In some embodiments of the present invention, at least one of the conductive layers 13 and the magnetic conductive layers 12 includes a plurality of conductive layers 13, each conductive layer 13 is connected in series with at least one magnetic conductive layer 12 to form a loop, and each magnetic conductive layer 12 is connected in series with at least one conductive layer 13 to form a loop. Further improving the uniformity of heating.

Furthermore, the number of the conductive layers 13 may be multiple, and the multiple conductive layers 13 may be connected in parallel and then connected in series with the magnetic conductive layer 12 to form a loop; the magnetic conduction layers 12 may also include a plurality of magnetic conduction layers 12, and the plurality of magnetic conduction layers 12 may be connected in parallel and then connected with the conductive layer 13 to form a loop; the conductive layers 13 and the magnetic conductive layers 12 may be multiple, the conductive layers 13 are connected in parallel, the magnetic conductive layers 12 are connected in parallel, and then the conductive layers 13 and the magnetic conductive layers 12 connected in parallel are connected in series to form a loop.

In addition, the magnetic conduction layers 12 may include a plurality of mutually independent layers, the conductive layers 13 include a plurality of mutually independent layers corresponding to the plurality of magnetic conduction layers 12 one by one, and each conductive layer 13 is connected in series with the corresponding magnetic conduction layer 12 to form a loop. Thereby further improving the uniformity of heating.

Referring to fig. 1, the total length of the conductive layer 13 is greater than the length of the magnetically permeable layer 12 extending in the circumferential direction. Therefore, the heating area of the bottom wall of the insulating pot body 11 can be increased, so that heat can be concentrated on the bottom wall of the insulating pot body, and the heating uniformity can be ensured to a certain extent. In addition, the insulating pot body 11 may be a ceramic pot body with an open top. Therefore, the insulating pot body 11 has better chemical and thermal stability, and is favorable for placing food materials in the insulating pot body 11 or taking food out of the insulating pot body 11.

It is understood that the insulating pot body 11 may be a ceramic pot body. Of course, the insulating pot body 11 can also be made of other materials, such as aluminum or stainless steel. When the insulating pot body 11 is made of materials such as aluminum or stainless steel, an insulating layer needs to be compounded on the outer surface of the insulating pot body 11. The magnetic conductive layer 12 can be made of copper, aluminum, iron or stainless steel. The compounding method of the magnetic conduction layer 12 can be various methods such as spraying, pasting or electroplating, and the like, as long as the stable and reliable magnetic conduction layer 12 can be finally formed on the outer surface of the insulating pot body 11.

It should be noted that the above embodiments of the present invention are described by taking the inner pot 100 suitable for electromagnetic heating as an example. Of course, the inner pot 100 of the present invention may also be used in other cooking utensils such as electric rice cooker, electric pressure cooker, electromagnetic oven, etc., and any cooking utensil using electromagnetic heating principle falls within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A cooking appliance comprising an inner pot adapted for electromagnetic heating and an induction coil, characterized in that the inner pot comprises:

an insulating pan body;

the magnetic conduction layer is arranged on the bottom wall of the insulating pot body and extends along the circumferential direction of the insulating pot body;

the induction coil is opposite to the magnetic conduction layer, and an induced electromotive force is generated on the magnetic conduction layer by an induced magnetic field of the induction coil;

the conducting layer is arranged on the bottom wall of the insulating pot body and is connected with the magnetic conduction layer in series to form a loop;

the conducting layer is arranged on the outer side of the magnetic conduction layer so as to expand an induction heating area of the bottom wall of the inner pot;

the magnetic conduction layer is annular with a notch, and the conductive layer is connected with two ends of the notch of the magnetic conduction layer to form a loop;

the magnetic conduction layer is located in the middle of the bottom wall of the insulating pot body, and the conducting layer is connected with the magnetic conduction layer and covers the periphery of the bottom wall of the insulating pot body outwards.

2. The cooking appliance of claim 1, wherein the conductive layer comprises first and second spaced apart conductive segments, the first conductive segment, the second conductive segment, and the magnetically permeable layer being connected in series to form a loop.

3. The cooking appliance of claim 2, wherein one end of the first conductive segment is connected to one end of the magnetic conductive layer and extends circuitously away from the magnetic conductive layer, one end of the second conductive segment is connected to the other end of the magnetic conductive layer and extends circuitously away from the magnetic conductive layer, and the other end of the first conductive segment is connected to the other end of the second conductive segment.

4. The cooking utensil as claimed in claim 3, wherein the first conductive segment and the second conductive segment are both located outside the magnetic conductive layer, the first conductive segment includes a plurality of first arc-shaped conductive strips arranged at intervals from inside to outside and connected in series in sequence, the second conductive segment includes a plurality of second arc-shaped conductive strips arranged at intervals from inside to outside and connected in series in sequence, one first arc-shaped conductive strip located at the innermost side is connected with the magnetic conductive layer, one second arc-shaped conductive strip located at the innermost side is connected with the magnetic conductive layer, and the first arc-shaped conductive strip located at the outermost side is connected with the second arc-shaped conductive strip located at the outermost side.

5. The cooking appliance of claim 4, wherein the first and second arc-shaped conductive strips and the magnetic conductive layer are concentric circular arc-shaped.

6. The cooking appliance according to claim 1, wherein the conductive layer comprises a plurality of spiral rings spaced apart from each other, each spiral ring spirally extends from inside to outside along the circumference of the insulating pot body, the plurality of spiral rings are spirally and nestedly arranged in the same direction, and the plurality of spiral rings are connected in series.

7. The cooking appliance of claim 1, wherein the insulating pot body is provided with an induction heating layer located inside the magnetic conductive layer.

8. The cooking appliance according to any one of claims 1 to 5, wherein the magnetically conductive layer is ring-shaped with a gap, and the electrically conductive layer is symmetrical about an axis of symmetry of the magnetically conductive layer.

9. The cooking appliance of claim 1, wherein the bottom wall perimeter of the insulating pan body has a radius and the conductive layer is overlaid adjacent to or onto the radius.

10. The cooking appliance of any one of claims 1 to 6, wherein the width of the magnetically permeable layer is greater than the width of the electrically conductive layer.

11. The cooking appliance of any one of claims 1 to 6, wherein the conductive layer is a magnetically resistive conductive layer and the insulating pot is an open-topped ceramic pot.

12. Cooking appliance according to any one of claims 1 to 6, characterized in that the electrically conductive layer is in the form of a bent strip and covers the bottom wall of the insulating pot.

13. The cooking appliance of claim 12, wherein at least one of the conductive layer and the magnetically permeable layers comprises a plurality of layers, each conductive layer is connected in series with at least one of the magnetically permeable layers to form a loop, and each magnetically permeable layer is connected in series with at least one of the conductive layers to form a loop.

14. The cooking appliance of claim 13, wherein the plurality of conductive layers are connected in parallel and then connected in series with the magnetic conductive layer to form a loop.

15. The cooking appliance according to claim 13, wherein the plurality of magnetic conductive layers are connected in parallel to form a loop.

16. The cooking appliance according to claim 13, wherein the plurality of magnetic conductive layers are independent from each other, the plurality of conductive layers are independent from each other and correspond to the plurality of magnetic conductive layers one by one, and each conductive layer is connected in series with the corresponding magnetic conductive layer to form a loop.

17. The cooking appliance of any one of claims 1 to 6, wherein the electrically conductive layer has an overall length that is greater than a length of the magnetically permeable layer extending in a circumferential direction.