CN106923685B

CN106923685B - Be suitable for electromagnetic heating's interior pot and have its cooking utensil

Info

Publication number: CN106923685B
Application number: CN201511034528.1A
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: 2021-03-19
Anticipated expiration: 2035-12-31
Also published as: CN106923685A

Abstract

The invention discloses an inner pot suitable for electromagnetic heating and a cooking utensil with the inner pot, wherein the inner pot suitable for electromagnetic heating comprises: the pot comprises an insulating pot body, a magnetic conduction layer and a conductive layer. The magnetic conduction layer is arranged on the peripheral wall of the insulating pot body and 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, the magnetic conduction layer is arranged on the peripheral wall of the inner pot, the conductive layer is arranged on the bottom wall of the inner pot, and the conductive layer is connected with the magnetic conduction layer in series, so that the bottom wall of the inner pot can be heated by heating the peripheral wall of the inner pot, and the inner pot is heated more uniformly.

Description

Be suitable for electromagnetic heating's interior pot and have its cooking utensil

Technical Field

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

Background

IH heating is becoming the mainstream heating mode due to its advantages of fast heating speed, high energy efficiency, easy control, etc. In the IH rice cooker in the related art, a coil panel is usually used to generate a magnetic field to heat a pot, the heated inner pot is generally covered by a magnetizer in the whole heating area, and the magnetic field generated by the coil panel is relatively concentrated in a certain area, rather than being uniformly distributed in the heating area of the inner pot, so that the heat generated by the inner pot is relatively concentrated, thereby affecting the quality of cooking. In order to solve the above problems, the inner pot is usually heated uniformly by increasing the thickness of the inner pot or changing the distribution of the coil panels. However, the above method not only increases the difficulty of manufacturing the product, but also increases the manufacturing cost, and furthermore, the problem of uniform heating of the inner pot cannot be effectively solved.

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 first aspect of the present invention provides an inner pot suitable for electromagnetic heating, which can achieve uniform heating to some extent.

The second aspect of the invention is to provide a cooking appliance, wherein the cooking appliance is provided with the inner pot.

The third aspect of the present invention provides a cooking appliance, which includes an outer pot, and the cooking appliance is provided with the inner pot.

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 peripheral wall of the insulating pot body and 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 provided by the embodiment of the invention, the peripheral wall of the inner pot is provided with the magnetic conduction layer, the bottom wall of the inner pot is provided with the conductive layer, and the conductive layer is connected with the magnetic conduction layer in series, so that the bottom wall of the inner pot can be heated by heating the peripheral wall of the inner pot, and the inner pot is heated more uniformly.

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 is in the form 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.

In some embodiments of the present invention, the magnetic conductive layers include a plurality of mutually independent magnetic conductive layers, the conductive layers include a plurality of mutually independent magnetic conductive layers corresponding to the plurality of magnetic conductive layers one by one, and each of the conductive layers is connected in series with the corresponding magnetic conductive layer to form a loop.

According to one embodiment of the invention, the conductive layer comprises a plurality of spiral rings which are spaced from each other, each spiral ring extends spirally along the circumference of the insulating pot body and extends from the circumference of the bottom wall of the insulating pot body to the center of the bottom wall of the insulating pot body, the plurality of spiral rings are spirally arranged in the same direction and are nested, and the plurality of spiral rings are connected with the magnetic conductive layer in series.

Further, a plurality of the spiral rings are connected in series.

Optionally, the sum of the number of helical turns of the plurality of said helical loops is in the range of 4 to 30 turns.

Optionally, the number of the spiral rings is two, the outer ends of the two spiral rings are respectively connected with the magnetic conductive layer, and the inner ends of the two spiral rings are connected.

According to 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.

According to some embodiments of the invention, the magnetic conductive layer is in a ring shape with a gap, and two ends of the gap of the magnetic conductive layer are respectively connected to the conductive layer.

Furthermore, the magnetic conduction layer includes a plurality of upper and lower interval arrangement, and a plurality of the magnetic conduction layer is parallelly connected.

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, at least one of the magnetically conductive layer and the electrically conductive layer is attached to an outer surface of the insulating pot body.

According to some embodiments of the invention, the insulating pot is an open-topped ceramic pot.

The cooking appliance comprises an induction coil, wherein the induction coil is wound to form a hollow cylinder shape, and the inner side of the induction coil is suitable for placing the inner pot.

A cooking appliance according to an embodiment of a third aspect of the present invention includes: outer pot, interior pot and induction coil. The inner pot is arranged on the inner side of the outer pot, and the inner pot is the inner pot; the induction coil is wound on the outer pot, and the induction coil is opposite to the magnetic conduction layer on the inner pot.

Drawings

Fig. 1 is a schematic view of an inner pan of an embodiment of the present invention.

Fig. 2 is another schematic view of the inner pot according to the embodiment of the present invention.

Fig. 3 is a schematic current flow diagram of the inner pot according to the embodiment of the invention.

Fig. 4 is a schematic view of a cooking appliance according to an embodiment of the present invention.

Fig. 5 is a schematic view of an inner pan according to another embodiment of the present invention.

Fig. 6 is a schematic view of an inner pot according to still another embodiment of the present invention.

Reference numerals:

inner pot 100, insulating pot body 11, magnetic conduction layer 12, breach 121, magnetic conduction layer's first end 122, magnetic conduction layer's second end 123, conducting layer 13, spiral ring 131, cooking utensil 200, induction coil 21.

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 to 6.

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 and fig. 2, the magnetic conduction layer 12 may be disposed on the circumferential 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 conducting layer 13 can be arranged on the bottom wall of the insulating pot body 11, and the conducting layer 13 can be connected with the magnetic conduction layer 12 in series to form a loop, so that the bottom wall of the inner pot can be heated.

In the cooking utensil with this interior pot 100, can set up induction coil 21 around interior pot 100 to make interior pot induction coil and the relative magnetic conduction layer 12 on the interior pot 100, consequently, induction coil 21 is at the circular telegram in-process, alternating current will produce induction magnetic field after 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 heat and heats interior pot 100.

According to the inner pot 100 suitable for electromagnetic heating provided by the embodiment of the invention, as the magnetic conduction layer 12 and the conductive layer 13 are connected in series, when current is generated by induction, the current can flow along the magnetic conduction layer 12 and the conductive layer 13, that is, heat is generated through the conductive layer 13 and the magnetic conduction layer 12, so that the positions of the conductive layer 13 and the magnetic conduction layer 12 can be set as required, thereby heating at a preset position is realized, under the condition that the magnetic conduction layer 12 and the conductive layer 13 are reasonably arranged, the inner pot 100 can be uniformly heated, and the problem of nonuniform heating in the inner pot 100 without the magnetic conduction layer 12 and the conductive layer 13 is solved.

In addition, be equipped with magnetic conduction layer 12 at the perisporium of interior pot 100, be equipped with conducting layer 13 and magnetic conduction layer 12 concatenate at the diapire of interior pot 100, from this, can realize the heating of interior pot diapire through the heating to interior pot perisporium for interior pot 100 is heated more evenly.

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.

In order to increase the density of the conductive layer 13, the conductive layer 13 may be arranged in a winding, spiral or other manner, for example, the conductive layer 13 is arranged to extend from the periphery of the upper bottom wall of the insulating pot body 11 to the middle of the conductive layer 13, and the outer end and the inner end of the conductive layer 13 are respectively connected to the two ends of the magnetic conduction layer 12. The conductive layer 13 of some embodiments of the present invention is described below with reference to the drawings.

According to one embodiment of the invention, conductive layer 13 may be in the form of a curved strip and cover the bottom wall of insulating pot 11. This is equivalent to extending the length of the conductive layer 13, which is advantageous for increasing the uniformity of heating.

Referring to fig. 6, 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 and 2, in some embodiments of the present invention, conductive layer 13 may include a plurality of spiral rings 131 spaced apart from each other, each spiral ring 131 may extend spirally along the circumference of insulating pot body 11 and from the circumference of the bottom wall of insulating pot body 11 to the center of the bottom wall of insulating pot body 11, the plurality of spiral rings 131 may be spirally arranged in a nested manner in the same direction, and the plurality of spiral rings 131 are all connected in series with magnetic conductive layer 12.

For example, in the example of fig. 2, the conductive layer 13 may include two spiral rings 131 spaced apart from each other, each spiral ring 131 may extend spirally from outside to inside or from inside to outside along the circumference of the insulating pot body 11, and the two spiral rings 131 may be spirally and nestingly arranged in the same direction. Thereby, the number of turns of the spiral ring 131 is increased, which corresponds to a more even heating of the inner pot bottom wall without changing the length of the single spiral ring 131.

The conductive layer 13 is not limited to the shape of the spiral ring 131, and may have other shapes such as a zigzag shape, and the like, as long as the loop can be covered on the bottom wall of the inner pot 100.

The number of the spiral rings 131 may be three, four, five, or the like, and the plurality of spiral rings 131 may be connected in parallel or in series.

Preferably, as shown in fig. 2, a plurality of spiral rings 131 may be connected in series. Therefore, the current is easy to pass, the current at each position of the conductive layer 13 is approximately the same, the power at each position of the conductive layer 13 is consistent, and the uniform distribution of heat is facilitated.

Preferably, the sum of the number of turns of the helix of the helical ring 131 may be in the range of 4 to 30 turns. In other words, the conductive layer 13 may be in the form of a strip, and the number of the intersection points of the conductive layer 13 and any radial line on the bottom wall of the insulating pot body is in the range of 4 to 30. Thus, the more turns of the helical ring 131 (i.e., the longer the overall length of the helical ring 131), the more uniform the heating will be.

In addition, the specific number of turns of the spiral ring 131 can be adaptively set as desired.

It should be noted that, in practical applications, the gap between two adjacent turns of the spiral ring 131 may be specifically set according to the size of the inner pot 100 and the number of turns of the spiral ring 131 of the conductive layer 13, and the gap is set to ensure that no interference is generated between two adjacent turns of the spiral ring 131, and to make the number of turns of the spiral ring 131 as large as possible, so that the inner pot 100 can be heated more uniformly.

Referring to fig. 2, the spiral rings 131 may include two, outer ends of the two spiral rings 131 (e.g., an end away from the center line of the insulating pot body 11 in fig. 2) may be connected to the magnetic conductive layer 12, respectively, and inner ends of the two spiral rings 131 (e.g., an end adjacent to the center line of the insulating pot body 11 in fig. 2) may be connected. Therefore, the magnetic conduction layer 12 and the conductive layer 13 can form a closed loop, and uniform heating of the inner pot 100 can be realized.

Referring to fig. 1 and 2, 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 fact that the conductive layer 13 covers the bottom wall of the insulating pan 11 should be understood as: the bottom wall of the insulating pot 11 is located within the coverage of the 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.

As shown in fig. 1 and 2, the magnetic conductive layer 12 may have a ring shape with a gap 121, and two ends of the magnetic conductive layer 12 (e.g., a first end 122 and a second end 123 of the magnetic conductive layer 12 in fig. 2) may be respectively connected to the conductive layer 13.

In addition, the magnetic conduction layer 12 can also be extended along the circumferential direction of the insulating pot body 11 and can be in a spiral form along the up-down direction.

The gap 121 may extend to the bottom surface of the inner pot 100, so that the magnetic conductive layer 12 may be an uninterrupted whole, thereby forming a closed curved loop on the wall of the inner pot 100, and further realizing the three-dimensional heating of the inner pot 100.

Specifically, the bottom wall of the inner pan 100 may be provided with two equidirectional spiral rings 131, the two equidirectional spiral rings 131 may be connected in a central region of the bottom of the inner pan 100, the circumferential wall of the inner pan 100 may be provided with a magnetic conductive layer 12, the magnetic conductive layer 12 may be a ring structure formed with a gap 121, and the first end 122 of the magnetic conductive layer 12 and the second end 123 of the magnetic conductive layer 12 may be respectively connected with two ends of the bottom wall of the inner pan 100, where the equidirectional spiral rings 131 extend to the circumferential wall of the inner pan 100. Therefore, a closed loop can be formed between the magnetic conduction layer 12 and the conductive layer 13, so that the inner pot 100 can be heated more uniformly.

Referring to fig. 3 in conjunction with fig. 2, a portion of the closed circuit may be located at the bottom of the inner pot 100, and another portion may be located at the sidewall of the inner pot 100. According to the electromagnetic heating principle, when magnetic conduction layer 12 produces electric current under the effect of the magnetic field that electromagnetic induction coil produced, this electric current must be through the curve return circuit of the lateral wall portion of interior pot 100, and produce the heat and heat the lateral wall of interior pot 100, thereby make the bottom surface of interior pot 100 and the lateral wall of interior pot 100 generate heat simultaneously, and then can realize the three-dimensional heating to interior pot 100, therefore, both can solve in the relevant art interior pot can only the bottom be heated, cause easily because of the too high food that leads to of interior pot local heating is burnt to paste the problem that the pot explodes in even, need not to set up a plurality of induction coils again and heat interior pot, and then can make interior pot 100 easily make and reduce cost.

Further, referring to fig. 5, the magnetic conductive layer 12 may include a plurality of magnetic conductive layers 12 arranged at intervals up and down (e.g., up and down direction shown in fig. 5), and the plurality of magnetic conductive layers 12 may be connected in parallel. Therefore, the magnetic conduction layer 12 can induce a magnetic field to generate induced electromotive force, so that the heating efficiency is improved.

In addition, the magnetic conduction layer 12 can be relatively uniformly distributed on the outer peripheral wall of the inner pot 100, so that the contact area between the magnetic conduction layer 12 and the inner pot 100 can be increased to a certain extent, and the inner pot 100 can be heated more uniformly.

Referring to fig. 2 in conjunction with fig. 1, the width of magnetically permeable layer 12 may be greater than the width of electrically conductive layer 13.

Specifically, as shown in fig. 2, the width of the spiral ring 131 forming the electromotive force terminal may be greater than or equal to the width of the conductive layer 13 on the bottom wall of the inner pot 100. Thereby, the inner pot 100 can be uniformly heated.

Optionally, at least one of the magnetically conductive layer 12 and the electrically conductive layer 13 may be attached to the outer surface of the insulated pot body 11.

For example, referring to fig. 1 and 2, in an embodiment of the present invention, magnetically conductive layer 12 may be attached to the outer surface of insulating pot 11, and electrically conductive layer 13 may be attached to the bottom wall of insulating pot 11.

Of course, in other embodiments of the present invention, the conductive layer 13 and the magnetic conduction layer 12 may also be disposed inside the wall of the insulating pot body 11, and in addition, at least a portion of the conductive layer 13 and the magnetic conduction layer 12 may also be disposed on the inner surface of the insulating pot body 11 on the premise of ensuring safety and stability. The arrangement of the magnetic conductive layer 12 and the conductive layer 13 is not particularly limited, and can be adaptively adjusted according to needs in practical application.

By way of example and not limitation, insulating pan body 11 may be an open-top ceramic pan body. 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.

Referring to fig. 4 in combination with fig. 1, a cooking appliance 200 according to an embodiment of the second aspect of the present invention includes an induction coil 21, the induction coil 21 is wound to form a hollow cylinder, and the inner side of the induction coil 21 is suitable for placing the inner pot 100.

According to the cooking appliance 200 of the embodiment of the present invention, by providing the inner pot 100 of the first aspect embodiment, the taste of the cooked food can be improved.

As shown in fig. 4 and 1, a cooking appliance 200 according to an embodiment of the third aspect of the present invention includes: an outer pot (not shown), an inner pot, and an induction coil 21. The inner pot can be arranged on the inner side of the outer pot, the inner pot can be the inner pot 100, the induction coil 21 can be wound on the outer pot, and the induction coil 21 can be opposite to the magnetic conduction layer 12 on the inner pot 100. Therefore, induction current can be formed, and heat can be generated to heat the food material.

Specifically, referring to fig. 4 in combination with fig. 2, when an alternating current flows through the induction coil 21 of the cooking utensil 200 at a position corresponding to the side wall of the inner pot 100, electromotive forces may be generated at two ends of the magnetic conductive layer 12 (e.g., the first end 122 and the second end 123 of the magnetic conductive layer 12 in fig. 2) having the notch 121 on the side wall of the inner pot 100, and since the first end 122 and the second end 123 of the magnetic conductive layer 12 are connected to the conductive layer 13 at the bottom of the inner pot, a closed current may be generated in the conductive layer 13 at the bottom and the conductive layer 12 at the peripheral wall, so that heat may be generated at a position where the current flows to heat the inner pot 100. Since the conductive layer 13 is uniformly distributed on the bottom, the inner pot 100 is uniformly heated, and thus the cooking utensil 200 can uniformly heat the food.

As will be understood by those skilled in the art, the term "induction coil 21" as used herein is opposite to (or corresponds to) the magnetically permeable layer 12, and refers to: when the induction coil 21 is energized, the induction magnetic field generated by the induction coil 21 will cover at least a portion of the magnetically permeable layer 12.

The coverage of the induction coil 21 according to the present invention means: the coverage of the induction magnetic field generated by the induction coil 12 when the induction coil 21 is energized; or the effective coverage area of the induction magnetic field generated by the induction coil 21, that is, the induction magnetic field generated by the induction coil 21 is strong in the coverage area of the induction coil 21, and an appropriate induced electromotive force can be generated on the magnetic conductive layer 12 by the induction magnetic field to form an induced electric field to heat the inner pot. For example, the induction coil 21 covering the whole of the magnetic conductive layer 12 means that the induction magnetic field generated by the induction coil 21 covers the whole of the magnetic conductive layer 12.

According to the cooking utensil 200 of the embodiment of the invention, the heating of the bottom wall of the inner pot can be realized without the induction coil 21 on the peripheral wall of the inner pot 100. The position of the induction coil 21 can be flexibly set, so that the bottom wall of the entire cooking appliance 200 can be made thinner, thereby contributing to the miniaturization of the cooking appliance 200. In addition, the whole induction coil 21 can be wound on the outer surface of the outer pot, so that a bottom induction coil bracket can be omitted, and cost saving is facilitated.

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", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to 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," etc., 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. An inner pot adapted for electromagnetic heating, comprising:

an insulating pan body;

the magnetic conduction layer is arranged on the peripheral wall of the insulating pot body, extends along the circumferential direction of the insulating pot body and is used for generating an induction electric field;

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, and an induction electric field generated by the magnetic conduction layer generates current in the magnetic conduction layer and the conducting layer which are connected in series.

2. Inner pot suitable for electromagnetic heating according to claim 1, characterized in that the electrically conductive layer is in the shape of a bent strip and covers the bottom wall of the insulating pot body.

3. The inner pan adapted for electromagnetic heating as claimed in claim 2, wherein at least one of the conductive layer and the magnetically conductive layer comprises a plurality of layers, each conductive layer is connected in series with at least one magnetically conductive layer to form a loop, and each magnetically conductive layer is connected in series with at least one conductive layer to form a loop.

4. The inner pan suitable for electromagnetic heating of claim 3, wherein the conductive layer comprises a plurality of conductive layers, and the plurality of conductive layers are connected in parallel and then connected in series with the magnetic conductive layer to form a loop.

5. The inner pan suitable for electromagnetic heating of claim 3, wherein the magnetic conduction layer comprises a plurality of magnetic conduction layers, and the plurality of magnetic conduction layers are connected in parallel and then connected with the conductive layer to form a loop.

6. The inner pan suitable for electromagnetic heating according to claim 3, wherein the magnetic conduction layers include a plurality of mutually independent conductive layers, the conductive layers include a plurality of mutually independent conductive layers in one-to-one correspondence with the plurality of magnetic conduction layers, and each conductive layer is connected in series with the corresponding magnetic conduction layer to form a loop.

7. The inner pot suitable for electromagnetic heating as claimed in any one of claims 1 to 6, wherein the conductive layer comprises a plurality of spiral rings spaced apart from each other, each spiral ring extending spirally along the circumference of the insulating pot body and from the circumference of the bottom wall of the insulating pot body to the center of the bottom wall of the insulating pot body, the plurality of spiral rings being spirally and nestingly arranged in the same direction, and the plurality of spiral rings being connected in series with the magnetic conductive layer.

8. The inner pan adapted for electromagnetic heating of claim 7, wherein a plurality of the spiral rings are connected in series.

9. The inner pan of claim 7, wherein the sum of the number of helical turns of the plurality of helical rings is in the range of 4 to 30 turns.

10. The inner pot suitable for electromagnetic heating of claim 7, wherein the spiral rings comprise two spiral rings, the outer ends of the two spiral rings are respectively connected with the magnetic conduction layer, and the inner ends of the two spiral rings are connected.

11. The inner pan adapted for electromagnetic heating of any one of claims 1-6, wherein the total length of the electrically conductive layer is greater than the length of the magnetically permeable layer extending in the circumferential direction.

12. The inner pan suitable for electromagnetic heating according to any one of claims 1 to 6, wherein the magnetic conductive layer is in a ring shape with a gap, and two ends of the gap of the magnetic conductive layer are respectively connected with the conductive layer.

13. The inner pan adapted for electromagnetic heating of any one of claims 1-6, wherein the width of the magnetically permeable layer is greater than the width of the electrically conductive layer.

14. The inner pot suitable for electromagnetic heating as claimed in any one of claims 1 to 6, wherein the insulating pot body is an open-topped ceramic pot body.

15. A cooking appliance comprising an induction coil wound to form a hollow cylinder with an inner side adapted to receive an inner pan according to any one of claims 1 to 14.

16. A cooking appliance, comprising:

an outer pot;

an inner pan disposed inside the outer pan, the inner pan being in accordance with any one of claims 1-14;

the induction coil is wound on the outer pot, and is opposite to the magnetic conduction layer on the inner pot.