Inner pot and cooking utensil

Abstract

The inner pot is provided with a pot bottom and a pot wall, and the inner pot comprises a ceramic base layer, a magnetic conductive metal heating layer and a non-magnetic conductive metal auxiliary layer. The magnetic conductive metal heating layer is arranged on the inner side, located at the pot bottom, of the ceramic base layer. The non-magnetic metal auxiliary layer is arranged on the outer side, located at the pot bottom, of the ceramic base layer. According to the inner pot, heat can directly act on rice through heating of the inner surface, and meanwhile stable and continuous heating of the inner surface of the ceramic inner pot is facilitated through auxiliary heating of the outer surface; and moreover, the ceramic inner pot is more heat-insulated, heat is not easy to lose, the cooking time is shortened, and the energy efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to an inner pot and a cooking utensil. Background Art

[0002] Some current rice cookers with ceramic inner pots, especially electromagnetic heating rice cookers, have poor magnetic conductivity or rapid magnetic field decay due to the thick wall of the ceramic inner pot, resulting in insufficient cooking temperature.

[0003] Therefore, there is a need for an inner pot and a cooking utensil to at least partially solve the above problems. Utility Model Content

[0004] The Summary of the Utility Model introduces a series of simplified concepts that will be further described in the Detailed Description of the Utility Model. The Summary of the Utility Model of the Utility Model does not intend to limit the key features and essential technical features of the claimed technical solution, nor does it intend to determine the scope of protection of the claimed technical solution.

[0005] To at least partially solve the above problems, the first aspect of the present invention provides an inner pot for a cooking utensil, wherein the inner pot has a bottom and a wall, and comprises:

[0006] Ceramic substrate;

[0007] A magnetic conductive metal heating layer is provided on the inner side of the ceramic base layer at the bottom of the pot;

[0008] A non-magnetic metal auxiliary layer is provided on the outer side of the ceramic base layer at the bottom of the pot.

[0009] According to the inner pot of the present application, the heat can directly act on the rice through the heating of the inner surface. At the same time, the non-magnetic metal on the outer surface reduces the attenuation of the magnetic field, increases the stability of the magnetic field, and enhances the heating of the inner surface, which is beneficial to the stable and continuous heating of the inner surface of the ceramic inner pot. In addition, it can also make the ceramic inner pot more heat-insulating, and heat is not easily lost, so that the cooking time is shortened and the energy efficiency is higher.

[0010] Optionally, the projected area of ​​the magnetic conductive metal heating layer on the reference plane is less than or equal to the projected area of ​​the non-magnetic conductive metal auxiliary layer on the reference plane. According to this solution, it is beneficial to further reduce the magnetic field attenuation of the inner surface magnetic conductive metal heating layer and improve heating efficiency.

[0011] Optionally, the inner pot further comprises:

[0012] a non-stick layer, the non-stick layer being located on the inner surface of the inner pot; and / or

[0013] A first glaze layer, the first glaze layer being located on the inner surface of the magnetic conductive metal heating layer; and / or

[0014] The second glaze layer is located on the outer surface of the non-magnetic metal auxiliary layer. According to the above arrangement, the non-stick and scratch resistance properties of the inner pot surface can be improved.

[0015] Optionally, the outer surface roughness of the inner pot is 2.5 to 3.2 μm; and / or

[0016] The roughness of the inner surface of the inner pot is less than 1.6 μm. According to the above configuration, the gripability of the outer surface of the inner pot can be improved; and / or the cleanability of the inner surface of the inner pot can be improved.

[0017] Optionally, the inner pot includes a pot wall and a pot bottom, the pot bottom having a temperature-sensitive area and a non-temperature-sensitive area, the temperature-sensitive area being thinner than the non-temperature-sensitive area, wherein the temperature-sensitive area is configured as an inwardly concave portion. According to the inner pot of the present application, the magnetic metal heating layer is disposed on the inner side while reducing the thickness of the temperature-sensitive area of ​​the pot bottom. This achieves rapid heating of the pot contents while providing accurate temperature sensing, thereby improving the cooking effect of the rice. Furthermore, the inward concave temperature-sensitive area not only reduces the thickness of the area but also facilitates the assembly of a temperature-sensing cup.

[0018] Optionally, the inner surface of the inner pot is configured as a smooth transition surface; and / or

[0019] The middle area of ​​the inner surface of the pot bottom is configured as a plane. According to this solution, it is convenient to clean the inner pot.

[0020] Optionally, the radial dimension of the temperature sensing area is 25 to 50 mm; and / or

[0021] The thickness of the pot wall is 5 to 9 mm; and / or

[0022] The top of the pot wall is provided with a pot mouth, and the thickness of the pot mouth is 8 to 10 mm; and / or

[0023] The depth of the concave portion is 1 to 3 mm. According to the above arrangement, it is convenient for assembling the temperature-sensing cup; the wall thickness is convenient for heat transfer and heat preservation; and the deformation resistance of the inner pot is further improved.

[0024] Optionally, the non-temperature-sensitive area is provided with a support area, the outer surface of the support area is flat, and the radial dimension of the support area is greater than 80 mm. According to this solution, it is conducive to the stability of the inner pot.

[0025] A second aspect of the present application provides a cooking utensil, comprising:

[0026] A pot body, wherein the inner pot described in the first aspect is provided in the pot body;

[0027] The cover is arranged on the inner pot in an openable and closable manner. When the cover covers the pot body, a cooking space is formed between the cover and the pot body.

[0028] The cooking utensil according to the present invention has the technical effects similar to those of the inner pot of the first aspect.

[0029] Optionally, a heating component is further provided in the pot body;

[0030] The distance between the magnetic conductive metal heating layer of the inner pot and the heating component is 5 to 12 mm; and / or

[0031] The projected area of ​​the magnetic conductive metal heating layer on the reference plane is greater than or equal to the projected area of ​​the heating component on the reference plane. According to this solution, it is beneficial to fully utilize the magnetic field and improve heating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The following drawings of the present invention are used as a part of the present invention for understanding the present invention. The drawings show embodiments of the present invention and their descriptions, and are used to explain the principle of the present invention.

[0033] In the attached figure:

[0034] Figure 1 is a schematic diagram of a cooking appliance according to an embodiment of the present application;

[0035] Figure 2 is a schematic cross-sectional view of an inner pot according to an embodiment of the present application;

[0036] Figure 3 It is a partially enlarged schematic diagram of the cross section of the inner pot according to one embodiment of the present application.

[0037] Description of reference numerals:

[0038] 10: Cooking utensils 11: Pot

[0039] 12: Cover 13: Heating component

[0040] 100: Inner pot 101: Ceramic base

[0041] 102: Magnetic metal heating layer 103: First glaze layer

[0042] 104: Second glaze layer 105: Non-magnetic metal auxiliary layer

[0043] 106: non-stick layer 110: pot wall

[0044] 111: pot mouth 120: pot bottom

[0045] 121: Temperature sensing area 122: Non-temperature sensing area

[0046] 123: Support area 124: Recessed part DETAILED DESCRIPTION

[0047] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with the present invention.

[0048] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of the features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0049] Ordinal numbers such as "first" and "second" used in this disclosure are merely identifiers and do not convey any other meaning, such as a specific order. Furthermore, for example, the term "first component" itself does not imply the existence of a "second component," nor does the term "second component" itself imply the existence of a "first component." It should be noted that the terms "upper," "lower," "front," "back," "left," "right," "inner," "outer," and similar expressions used herein are for illustrative purposes only and are not intended to be limiting.

[0050] Now, exemplary embodiments according to the present invention will be described in more detail with reference to the accompanying drawings.

[0051] refer to Figure 1 The present application provides a cooking utensil 10, which includes a lid 12 and a pot body 11. The lid 12 has a shape substantially corresponding to the pot body 11. The lid 12 is disposed on the pot body 11 in an openable and closable manner. The lid 12 can be pivotally connected to the pot body 11, for example, via a pivot shaft, and can freely pivot about a pivot axis on which the pivot shaft is located between a closed position and an open position relative to the pot body 11, thereby facilitating the closing and opening of the pot body 11.

[0052] The pot body 11 includes an inner pot 100 and a cylindrical storage area. The inner pot 100 can be freely placed in and removed from the storage area, making it easy to clean. The inner pot 100 is typically made of metal and has a circular opening on its upper surface for holding ingredients to be heated, such as rice or soup. More specifically, the pot body 11 includes a base, an outer shell, and a middle plate. The outer shell is attached to the base, and the middle plate is attached to the outer shell. The middle plate has an opening that allows the inner pot 100 to enter.

[0053] The pot body 11 includes a heating assembly 13 for heating the inner pot 100. The heating assembly 13 is disposed below the inner pot 100. The heating assembly 13 can be a device such as a coil. Furthermore, the heating assembly 13 can include a temperature sensor, such as a temperature-sensing cup, which contacts the inner pot 100 to sense its temperature.

[0054] When the lid 12 is closed on the pot body 11, it covers the inner pot 100 and forms a cooking space between it and the inner pot 100. The lid 12 is usually also provided with a pot mouth sealing ring, which can be made of, for example, rubber material. The pot mouth sealing ring is disposed between the lid 12 and the inner pot 100 and is used to seal the cooking space when the lid 12 is in the closed state.

[0055] It can be understood that the cooking appliance 10 according to the present application can be an electric rice cooker, an electric pressure cooker or other cooking appliances 10, and the cooking appliance 10 has various functions such as cooking porridge in addition to the function of cooking rice.

[0056] It should be noted that directional terms such as "upper," "lower," "above," "below," "upward," "downward," "upward," and "downward" used herein to describe various components and parts of the cooking appliance 10 are relative to the cooking appliance 10 when it is horizontally positioned and upright. Unless otherwise specified, in the directional terms "inward," "outward," "inwardly," "outwardly," "inside," and "outside," "inside" refers to a direction closer to the center of the cooking appliance 10 or the center of the inner pot 100, while "outside" refers to a direction further away from the center of the cooking appliance 10 or the center of the pot 100.

[0057] The specific structure of the inner pot 100 is shown in FIG. Figure 2 and Figure 3 The inner pot 100 includes a pot wall 110 and a pot bottom 120. The inner pot also includes a ceramic base 101, a magnetic metal heating layer 102, and a non-magnetic metal auxiliary layer 105. The magnetic metal heating layer 102 is disposed on the inner side of the ceramic base 101 at the pot bottom 120. The non-magnetic metal auxiliary layer 105 is disposed on the outer side of the ceramic base 101 at the pot bottom 120.

[0058] According to the inner pot of the present application, the heat can directly act on the rice by heating the inner surface. At the same time, the non-magnetic metal is used to reduce the attenuation of the magnetic field, increase the stability of the magnetic field, and enhance the heating of the inner surface, which is beneficial to the stable and continuous heating of the inner surface of the ceramic inner pot. In addition, it can also make the ceramic inner pot more heat-insulating and heat is not easily lost, thereby shortening the cooking time and improving energy efficiency.

[0059] The non-magnetic conductive metal auxiliary layer 105 may be an aluminum layer, a copper layer, a silver layer, a titanium layer, etc. The magnetic conductive metal heating layer 102 may be an iron layer, a steel layer, etc.

[0060] In order to further improve the effect of preventing magnetic field attenuation and improve heating efficiency, the projected area S1 of the magnetic conductive metal heating layer 102 on the reference plane is less than or equal to the projected area S2 of the non-magnetic conductive metal auxiliary layer 105 on the reference plane. The reference plane can be a horizontal plane.

[0061] The distance L between the magnetic conductive metal heating layer 102 and the heating element 13 is 5-12 mm to maximize the use of the magnetic field.

[0062] Furthermore, preferably, the projected area S1 of the magnetic metal heating layer 102 on the reference plane is greater than or equal to the projected area S3 of the heating assembly 13 on the reference plane. More specifically, the projected area S1 of the magnetic metal heating layer 102 on the reference plane is greater than or equal to the projected area S3 of the coil winding of the heating assembly 13 on the reference plane. This further improves heating efficiency.

[0063] The inner pot 100 is constructed as a multi-layer structure, for details, please refer to Figure 3 . Its main body, that is, the base structure is the above-mentioned ceramic base layer 101. A magnetic metal heating layer 102 is provided on the inner surface of the ceramic base layer 101. Optionally, a first glaze layer 103 is provided on the inner surface of the magnetic metal heating layer 102. The magnetic metal heating layer 102 can be a metal layer manufactured by a melt spraying process. A second glaze layer 104 is attached to the outer surface of the ceramic base layer 101. Optionally, the roughness of the outer surface of the inner pot 100 is 2.5 to 3.2 μm, and the rougher outer surface can improve the grippability of the outer surface.

[0064] In an optional embodiment, a thermal insulation layer (not shown) may be further provided between the ceramic base layer 101 and the second glaze layer 104. As an optional embodiment, a non-stick layer 106 may be further provided on the inner surface of the inner pot 100. For example, when the inner pot 100 has a first glaze layer 103, the non-stick layer 106 may be provided on the inner surface of the first glaze layer 103. When the inner pot 100 does not have a first glaze layer 103, the non-stick layer 106 may be provided on the inner surface of the magnetic conductive metal heating layer 102. The non-stick layer 106 may be a fluorine-containing non-stick layer, such as a polytetrafluoroethylene layer. Preferably, the non-stick layer 106 may be a fluorine-free non-stick layer, such as a silicone resin layer or a ceramic layer. The roughness of the inner surface of the inner pot is less than 1.6 μm, and a smoother inner surface can improve the cleanability of the inner surface.

[0065] Please refer to the following Figure 2 The pot bottom 120 has a temperature-sensitive area 121 and a non-temperature-sensitive area 122 , and the thickness of the temperature-sensitive area 121 is smaller than that of the non-temperature-sensitive area 122 .

[0066] According to the inner pot 100 of the present application, the magnetic metal heating layer 102 is arranged on the inner side while reducing the thickness of the temperature sensing area 121 of the pot bottom 120, which can achieve a rapid heating effect on the contents of the pot while also accurately sensing the temperature, thereby improving the cooking effect of rice.

[0067] The thickness d1 of the pot wall 110 of the inner pot 100 is 5 to 9 mm. A pot mouth 111 is provided at the top of the pot wall 110. To further improve the deformation resistance of the inner pot 100, the thickness d2 of the pot mouth 111 is 8 to 10 mm.

[0068] The temperature sensing area 121 is constructed as an inwardly concave recess 124, so that the temperature sensing cup can be partially embedded in the recess 124 and contact the pot bottom 120, which is more convenient for assembly and stable installation. The depth h1 of the recess 124 is 1 to 3 mm. The radial size of the temperature sensing area 121 is Preferably, it is 25 to 50 mm.

[0069] The non-temperature sensing area 122 is provided with a support area 123, and the outer surface of the support area 123 is flat. This improves the stability of the inner pot 100 when placed in the pot body 11. Preferably, the radial size of the support area 123 is Greater than 80mm.

[0070] The inner surface of the inner pot 100 is configured as a smooth transition surface for easy cleaning. Preferably, the middle area of ​​the inner surface of the pot bottom 120 is configured as a plane.

[0071] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise indicated.

[0072] The present invention has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and explanation, and the present invention is not limited to the above-mentioned embodiments. According to the teachings of the present invention, more variations and modifications can be made, and these variations and modifications all fall within the scope of protection claimed by the present invention.

Claims

1. An inner pot for a cooking utensil, characterized in that: The inner pot has a pot bottom and a pot wall, and the inner pot includes: Ceramic substrate; A magnetic conductive metal heating layer is provided on the inner side of the ceramic base layer at the bottom of the pot; A non-magnetic metal auxiliary layer is provided on the outer side of the ceramic base layer at the bottom of the pot.

2. The inner pot according to claim 1, characterized in that: The projected area of ​​the magnetic conductive metal heating layer on the reference plane is less than or equal to the projected area of ​​the non-magnetic conductive metal auxiliary layer on the reference plane.

3. The inner pot according to claim 1, characterized in that: The inner pot also includes: a non-stick layer, the non-stick layer being located on the inner surface of the inner pot; and / or A first glaze layer, the first glaze layer being located on the inner surface of the magnetic conductive metal heating layer; and / or A second glaze layer is located on the outer surface of the non-magnetic metal auxiliary layer.

4. The inner pot according to claim 1, characterized in that The roughness of the outer surface of the inner pot is 2.5 to 3.2 μm; and / or The roughness of the inner surface of the inner pot is less than 1.6 μm.

5. The inner pot according to any one of claims 1 to 4, characterized in that: The pot bottom has a temperature-sensitive area and a non-temperature-sensitive area. The thickness of the temperature-sensitive area is smaller than that of the non-temperature-sensitive area, and the temperature-sensitive area is configured as an inwardly concave recess.

6. The inner pot according to claim 5, characterized in that: The inner surface of the inner pot is configured as a smooth transition surface; and / or The middle area of ​​the inner surface of the pot bottom is configured as a plane.

7. The inner pot according to claim 5, characterized in that: The radial dimension of the temperature sensing area is 25 to 50 mm; and / or The thickness of the pot wall is 5 to 9 mm; and / or The top of the pot wall is provided with a pot mouth, and the thickness of the pot mouth is 8 to 10 mm; and / or The depth of the recessed portion is 1 to 3 mm.

8. The inner pot according to claim 5, characterized in that: The non-temperature-sensing area is provided with a supporting area, the outer surface of the supporting area is configured as a plane, and the radial dimension of the supporting area is greater than 80 mm.

9. A cooking utensil, characterized in that: The cooking appliance comprises: A pot body, wherein the pot body is provided with an inner pot according to any one of claims 1 to 8; The cover is arranged on the inner pot in an openable and closable manner. When the cover covers the pot body, a cooking space is formed between the cover and the pot body.

10. The cooking appliance according to claim 9, characterized in that The pot body is also provided with a heating component; The distance between the magnetic conductive metal heating layer of the inner pot and the heating component is 5 to 12 mm; and / or The projected area of ​​the magnetic conductive metal heating layer on the reference plane is greater than or equal to the projected area of ​​the heating component on the reference plane.

Images