Cover body and cooking utensil

Abstract

The utility model discloses a cover body and a cooking utensil. The cover body is used for the cooking utensil. The cover body comprises a cover plate and a heating assembly. The cover plate is located at the bottommost part of the cover body, forms the lower surface of the cover body and is used for covering the opening of the cooking cavity. The heating assembly is located above the cover plate and used for heating and transferring heat to the cover plate. The minimum size of the gap between the cover plate and the heating assembly is not larger than 0.5 mm. According to the invention, the cover plate is in direct contact with steam and is close to the heating assembly as much as possible, so that more heat of the heating assembly can be received, heat waste is avoided, and the cover plate can be quickly heated to dry condensate water.

Description

Technical Field

[0001] The present application relates to the technical field of cooking utensils, and in particular to a cover for a cooking utensil and a cooking utensil having the cover. Background Art

[0002] To reduce condensation on the removable lid, existing rice cookers incorporate a heat preservation plate and heating wires within the lid. Heat from the heating wires is transferred through the heat preservation plate to the removable lid, drying out the condensation. However, existing rice cookers often suffer from poor heat transfer between the heat preservation plate and the removable lid, resulting in heat wasted in the heating wires. Therefore, a lid is needed that at least partially addresses this issue. Utility Model Content

[0003] The Summary of the Utility Model introduces a series of simplified concepts that will be further described in the Detailed Description of the Implementation Method. The Summary of the Utility Model of this application is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0004] To at least partially solve the above problems, the first aspect of the present application provides a cover for a cooking utensil, comprising:

[0005] a cover plate, located at the bottom of the cover body and forming a lower surface of the cover body, and used for covering the opening of the cooking cavity; and

[0006] A heating component is located above the cover plate and is used to generate heat and transfer heat to the cover plate.

[0007] Wherein, when the cover body is assembled, the minimum size of the gap between the cover plate and the heating component is not greater than 0.5 mm.

[0008] According to this application, the cover plate is in direct contact with the steam and is as close to the heating component as possible, so that it can receive more heat from the heating component and avoid wasting heat, which is conducive to the cover plate heating up quickly to dry the condensed water.

[0009] Optionally, the cover further includes:

[0010] Lining; and

[0011] a removable cover assembly detachably connected to the liner, the removable cover assembly comprising the cover plate,

[0012] Wherein, the heating component is arranged on a side of the lining facing the detachable cover component, and when the detachable cover component is connected to the lining, the minimum size of the gap is not greater than 0.5 mm.

[0013] According to this application, the cover is removable for easy cleaning.

[0014] Optionally, the heating component includes:

[0015] a heat conducting plate, disposed on a side of the liner facing the removable cover assembly; and

[0016] a heating wire, arranged on a side of the heat conducting plate facing the inner lining, for generating heat when powered on;

[0017] Wherein, when the detachable cover assembly is connected to the liner, the minimum gap between the cover plate and the heat-generating assembly is located between the cover plate and the heat-conducting plate.

[0018] According to the present application, the heating component has a simple structure.

[0019] Optionally, when the detachable cover assembly is connected to the liner, the minimum gap between the cover plate and the heat conducting plate is located between the upper surface of the cover plate and the lower surface of the heat conducting plate.

[0020] According to the present application, the cover plate is generally placed horizontally when in use, and has a larger area in the horizontal direction. The upper surface of the cover plate is close to the heat conducting plate, which is beneficial to heating the entire cover plate.

[0021] Optionally, the cover plate includes at least one horizontal cover plate portion extending substantially horizontally, and the heat conducting plate includes at least one horizontal heat conducting plate portion extending substantially horizontally.

[0022] When the removable cover assembly is connected to the liner, the horizontal portion of the heat conducting plate is opposite to the horizontal portion of the cover plate, and the minimum gap between the cover plate and the heat conducting plate is located between the upper surface of the horizontal portion of the cover plate and the lower surface of the horizontal portion of the heat conducting plate.

[0023] According to the present application, at least a portion of the cover plate and the heat conducting plate is constructed as a flat plate structure, which facilitates the two to be close to each other.

[0024] Optionally, the heating wire is arranged on a side of the horizontal portion of the heat conducting plate facing the lining.

[0025] According to the present application, the heating wire is arranged at the portion of the heat conducting plate closest to the cover plate, so that the heat generated by the heating wire can be transferred to the cover plate more quickly.

[0026] Optionally, the heat conducting plate is provided with an upwardly protruding groove; and / or

[0027] The cover plate is provided with a downwardly protruding pit.

[0028] According to the present application, the grooves can strengthen the heat conducting plate. The dimples can strengthen the cover plate and collect condensation, preventing it from dripping onto the food surface and affecting its taste. The grooves and dimples protrude in opposite directions, facilitating the close proximity of the cover plate and heat conducting plate.

[0029] Optionally, the heat conducting plate is directly connected to the lining, and the lining is provided with heat dissipation holes.

[0030] According to the present application, the lining dissipates heat through the heat dissipation holes, and there is no need to set up a heat insulating member between the heating component and the lining, nor is there a need to use high-temperature resistant materials to make the lining, thereby saving costs and ensuring injection molding quality.

[0031] Optionally, in a projection of the cover along the up-down direction, the heat conducting plate covers all of the heat dissipation holes.

[0032] According to the present application, the heat dissipation holes are arranged at the part of the lining that receives the most heat from the heating component, which is conducive to rapid heat dissipation of the lining and also reduces the area of ​​the lining that receives heat.

[0033] Optionally, the heat dissipation holes are distributed symmetrically about the center line of the liner.

[0034] According to the present application, the heat dissipation holes are symmetrically arranged to facilitate injection molding of the liner.

[0035] Optionally, when the detachable cover assembly is connected to the liner, the minimum gap between the cover plate and the heat-generating assembly is located between the upper surface of the cover plate and the lower surface of the heat-generating assembly.

[0036] According to the present application, the cover plate is generally placed horizontally when in use, and has a larger area in the horizontal direction. The upper surface of the cover plate is close to the heating component, which is beneficial to the heating of the entire cover plate.

[0037] Optionally, in the projection of the cover body along the up and down directions, the cover plate completely covers the heat-generating component.

[0038] According to the present application, in the projection of the cover body along the up and down directions, the cover plate completely covers the heat-generating component, thereby minimizing the heat waste of the heat-generating component.

[0039] Optionally, in the projection of the cover body along the up-down direction, the heating component and the cover plate are aligned with each other.

[0040] According to the present application, the heating component and the cover plate are aligned with each other, which is conducive to uniform heating of the cover plate.

[0041] A second aspect of the present application provides a cooking utensil comprising:

[0042] A pot body, comprising a cooking cavity for holding food; and

[0043] The cover according to any one of the first aspects is used to cover the pot body,

[0044] When the cover body covers the pot body, the cover plate covers the opening of the cooking cavity.

[0045] According to this application, the cover plate is in direct contact with the steam and is as close to the heating component as possible, so that it can receive more heat from the heating component and avoid wasting heat, which is conducive to the cover plate heating up quickly to dry the condensed water. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The following drawings of the present application are used as part of the present application for understanding the present application. The drawings show representative embodiments of the present application and are used to explain the principles of the present application rather than to limit the present application.

[0047] In the attached figure:

[0048] Figure 1 is a schematic exploded perspective view of a cooking appliance according to a specific embodiment of the present application;

[0049] Figure 2 It is a side cross-sectional schematic diagram of a partial structure of a cover body according to a specific embodiment of the present application;

[0050] Figure 3 for Figure 2 Enlarged view of section A;

[0051] Figure 4 It is a three-dimensional exploded schematic diagram of a cover according to a specific embodiment of the present application;

[0052] Figure 5 for Figure 4 Top view of the lining in

[0053] Description of reference numerals:

[0054] 10: Cover

[0055] 11: Lining

[0056] 12: Heat dissipation holes

[0057] 13: Face cover

[0058] 20: Heating components

[0059] 21: Heat conduction plate

[0060] 22: Side wall of heat conducting plate

[0061] 23: Bottom wall of heat conducting plate

[0062] 24: Horizontal part of heat conduction plate

[0063] 25: Heating wire

[0064] 26: Groove

[0065] 40: Removable cover assembly

[0066] 41: Cover

[0067] 42: Cover side wall

[0068] 43: Bottom wall of cover plate

[0069] 44: Horizontal part of cover plate

[0070] 45: Pot mouth sealing ring

[0071] 46: pit

[0072] 47: Removable cover

[0073] 60: Claypot

[0074] 100: Cooking utensils DETAILED DESCRIPTION

[0075] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it will be apparent to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, some technical features well known in the art are not described in order to avoid confusion with the present application.

[0076] In order to thoroughly understand the present application, a detailed description will be provided in the following description. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. Obviously, the implementation of the embodiments of the present application is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present application are described in detail below, but in addition to these detailed descriptions, the present application may also have other embodiments.

[0077] Ordinal numbers such as "first" and "second" used in this application 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." The use of terms such as "first," "second," and "third" does not indicate any order; these terms should be interpreted as names.

[0078] It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside" and similar expressions used in this application are for illustrative purposes only and are not limiting.

[0079] In this document, “equal”, “same”, etc. are not strictly limited in a mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use.

[0080] Unless otherwise stated, numerical ranges herein include not only the entire range between its two endpoints but also the several sub-ranges contained therein.

[0081] The present application provides a cover for a cooking utensil and a cooking utensil having the cover.

[0082] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings.

[0083] like Figure 1 As shown, in a specific embodiment, the cooking appliance 100 according to the present application may include a pot body 60 and a cover body 10 .

[0084] The pot body 60 includes a cooking cavity for holding and cooking ingredients. The cooking cavity has a cooking cavity opening for removing and placing ingredients. For example, the pot body 60 may include a cylindrical (or other shaped) receiving cavity 64. The pot can be freely placed in and removed from the receiving cavity 64. The interior space of the pot is the cooking cavity, and the pot opening is the opening of the cooking cavity.

[0085] The cooking appliance 100 includes a heating device (not shown). The heating device is typically located at the bottom of the pot body 60, for example, below the inner pot. The heating device is used to heat the ingredients in the cooking cavity, thereby achieving the cooking function. The heating device can be configured in the form of a heating plate, for example.

[0086] The cooking appliance 100 may also have a top temperature sensor (not shown) and a bottom temperature sensor. The top temperature sensor is usually located on the lid 10 and is used to detect the top temperature of the cooking cavity. The bottom temperature sensor is located in the pot body 60 and is used to detect the bottom temperature of the cooking cavity.

[0087] In addition, the cooking appliance 100 further includes a control device (not shown) for controlling the cooking of the cooking appliance 100. The control device may be, for example, a microprocessor unit (MCU), which is electrically connected to the heating device and the temperature sensor so that the heating device can control its operation according to the detection value of the temperature sensor.

[0088] The lid 10 can be pivotally connected to the pot body 60 via a pivot shaft to cover the pot body 60. The lid 10 includes a cover plate 41 and a heating assembly 20. The cover plate 41 is located at the bottom of the lid 10 and forms the lower surface of the lid 10, and is used to cover the opening of the cooking cavity. The cover plate 41 is the component of the lid 10 that directly faces the cooking cavity and is also the component that contacts steam and forms condensed water. The heating assembly 20 is located above the cover plate 41 and is used to generate heat and transfer heat to the cover plate 41 to eliminate condensed water on the cover plate 41. In other words, when the lid 10 is assembled, the minimum dimension of the gap between the cover plate 41 and the heating assembly 20 is no greater than 0.5 mm. In other words, when the lid 10 is assembled, the minimum dimension of the gap between the cover plate 41 and the portion of the heating assembly 20 used to transfer heat to the cover plate 41 is no greater than 0.5 mm. Therefore, the cover plate 41 is as close to the heating component 20 as possible, receiving more heat from the heating component 20, avoiding heat waste, and facilitating rapid heating of the cover plate 41.

[0089] It should be noted that, in this application, the directional terms "upper" and "lower" refer to directions determined based on the cooking appliance 100 being placed upright with the lid 10 in a closed position. In this application, any point on one component has a distance from any point on another component, and the minimum value of this distance is the minimum size of the gap between the two components.

[0090] Specifically, if Figures 1 to 4 As shown, the lid body 10 includes a top cover 13, an inner lining 11 and a removable lid assembly 40. The inner lining 11 constitutes the skeleton of the lid body 10, and various components in the lid body 10 (such as the top temperature sensor and the steam valve) are installed in the inner lining 11. The inner lining 11 is, for example, pivotally connected to the pot body 60 so that the lid body 10 can cover the pot body 60. The top cover 13 forms the outer shell of the lid body 10 and is installed on the inner lining 11. The removable lid assembly 40 is detachably connected to the inner lining 11 and is located at the bottom of the lid body 10. The removable lid assembly 40 is used to cover the cooking cavity opening. Typically, the top cover 13, the inner lining 11 and the removable lid assembly 40 are arranged from top to bottom.

[0091] Specifically, the removable lid assembly 40 includes a cover plate 41 and a pot opening sealing ring 45. The cover plate 41 is removably connected to the liner 11 and simultaneously covers the cooking cavity opening. The pot opening sealing ring 45 is attached to the outer edge of the cover plate 41 and is configured to seal against the pot opening (e.g., the opening edge of the inner pot). Typically, the cover plate 41 is circular to accommodate the shape of the cooking cavity.

[0092] The cover plate 41 includes, for example, a bottom wall 43 and side walls 42. The side walls 42 extend upward from the outer periphery of the bottom wall 43. The side walls 42 are configured to be removably connected to the liner 11. The bottom wall 43 forms the primary portion of the cover plate 41, covering the cooking cavity opening. A pot opening sealing ring 45 is located on the outer periphery of the bottom wall 43.

[0093] The heating assembly 20 is disposed on the side of the liner 11 facing the removable cover assembly 40, i.e., on the underside of the liner 11 (above the removable cover assembly 40). The cover body 10 is constructed so that when the removable cover assembly 40 is connected (installed) to the liner 11, the minimum gap between the cover plate 41 and the heating assembly 20 is no greater than 0.5 mm. This allows the cover plate 41 to be as close to the heating assembly 20 as possible, so that the heat generated by the heating assembly 20 evaporates condensed water on the cover plate 41.

[0094] During cooking, the cover plate 41 is positioned substantially horizontally. As the primary component of the removable cover assembly 40 exposed to steam, it generates a significant amount of condensed water. The heating element 20 is positioned above the cover plate 41, maximizing heat transfer to all areas of the cover plate 41. The cover plate 41 is typically a metal plate, such as aluminum, with a thickness of, for example, 0.7-2 mm. This provides a high thermal conductivity, enabling rapid heating.

[0095] Preferably, when the removable cover assembly 40 is connected to the liner 11, the minimum gap between the cover plate 41 and the heating component 20 is located between the upper surface of the cover plate 41 and the lower surface of the heating component 20. Thus, the cover plate 41 is close to the heating component 20 in the most reasonable manner, which is conducive to the full heating of the cover plate 41.

[0096] Preferably, in the projection of the cover body 10 along the up-down direction, the cover plate 41 completely covers the heating component 20 , thereby preventing heat waste of the heating component 20 .

[0097] To accommodate the shapes of the cooking cavity and cover plate 41, the heating assembly 20 is also circular. Preferably, in the vertical projection of the cover body 10, the heating assembly 20 and the cover plate 41 are aligned. This positions the heating assembly 20 directly above the cover plate 41, facilitating uniform heating of the cover plate 41.

[0098] Specifically, the heating component 20 includes a heat conducting plate 21 and a heating wire 25. The heat conducting plate 21 is arranged on the side of the lining 11 facing the removable cover assembly 40. The heating wire 25 is arranged on the side (upper side) of the heat conducting plate 21 facing the lining 11, and is used to generate heat after being powered on. The heating wire 25 has a certain resistance value, for example, and can generate heat after being powered on. The heat conducting plate 21 receives the heat from the heating wire 25, and then transfers the heat to the cover plate 41. The heat conducting plate 21 is, for example, a metal plate, such as an aluminum plate, and the plate thickness is, for example, 0.7-2 mm, so that the specific heat capacity of the heat conducting plate 21 is small, the amount of heat absorbed is small, and the temperature rises quickly. The heating wire 25 can be pasted on the surface of the heat conducting plate 21 to facilitate heat transfer between the two. The heating wire 25 is coiled as evenly as possible on the surface of the heat conducting plate 21 so that all parts of the heat conducting plate 21 are heated evenly.

[0099] The heat conducting plate 21 includes, for example, a heat conducting plate bottom wall 23 and a heat conducting plate side wall 22, and the heat conducting plate side wall 22 extends upward from the outer peripheral edge of the heat conducting plate bottom wall 23. The heat conducting plate side wall 22 is used to connect to the lining 11, for example, by a hook connection, a bolt connection, etc. The heating wire 25 is arranged on the side of the heat conducting plate bottom wall 23 facing the lining 11. It can be understood that the heat conducting plate bottom wall 23 is the main component for transferring heat from the heat conducting plate 21 to the cover plate 41. During cooking, the heat conducting plate bottom wall 23 is placed basically horizontally, located above the cover plate 41, and roughly parallel to the cover plate 41. In order to adapt to the shape of the cooking cavity and the cover plate 41, the heat conducting plate bottom wall 23 is constructed to be circular.

[0100] When the removable cover assembly 40 is connected to the liner 11, the gap between the cover plate 41 and the heat-generating component 20 is located between the cover plate 41 and the heat-conducting plate 21. Preferably, when the removable cover assembly 40 is connected to the liner 11, the minimum gap between the cover plate 41 and the heat-conducting plate 21 is located between the upper surface of the cover plate 41 and the lower surface of the heat-conducting plate 21. Preferably, when the removable cover assembly 40 is connected to the liner 11, the minimum gap between the cover plate 41 and the heat-conducting plate 21 is located between the cover plate 41 and the bottom wall 23 of the heat-conducting plate. For example, when the removable cover assembly 40 is connected to the liner 11, the minimum gap between the cover plate 41 and the heat-conducting plate 21 is located between the cover plate bottom wall 43 and the bottom wall 23 of the heat-conducting plate. For example, when the removable cover assembly 40 is connected to the liner 11, the minimum gap between the cover plate 41 and the heat-conducting plate 21 is located between the upper surface of the cover plate bottom wall 43 and the lower surface of the heat-conducting plate bottom wall 23.

[0101] For example, Figure 4As shown, the bottom wall 43 of the cover plate can be formed by stamping a flat plate, including at least one horizontal cover portion 44 extending substantially horizontally. The bottom wall 23 of the heat conducting plate can also be formed by stamping a flat plate, including at least one horizontal heat conducting plate portion 24 extending substantially horizontally. When the removable cover assembly 40 is connected to the liner 11, the horizontal heat conducting plate portion 24 and the horizontal cover portion 44 are opposite to each other in vertical direction, and the minimum gap between the cover plate 41 and the heat conducting plate 21 is located between the upper surface of the horizontal cover portion 44 and the lower surface of the horizontal heat conducting plate portion 24. Figure 3 As shown, the horizontal cover portion 44 and the horizontal heat conducting plate portion 24 are substantially parallel to each other, and a distance D is provided between the upper surface of the horizontal cover portion 44 and the lower surface of the horizontal heat conducting plate portion 24 , which is the minimum gap between the cover plate 41 and the heat conducting plate 21 .

[0102] like Figure 4 As shown, the horizontal portion 44 of the cover plate occupies a majority of the bottom wall 43 (e.g., the area of ​​the horizontal portion 44 accounts for 55-80% of the area of ​​the bottom wall 43), and the horizontal portion 24 of the heat conducting plate occupies a majority of the bottom wall 23 (e.g., the area of ​​the horizontal portion 24 accounts for 55-80% of the area of ​​the bottom wall 23). This makes the bottom wall 43 of the cover plate and the heat conducting plate 23 both substantially flat, facilitating their proximity. The bottom wall 23 of the heat conducting plate can be provided with a groove 26 that protrudes upward (toward the liner 11) to strengthen the bottom wall 23 of the heat conducting plate. The bottom wall 43 of the cover plate can also be provided with a depression 46 that protrudes downward (toward the cooking cavity) to strengthen the bottom wall 43 of the cover plate and collect condensation to prevent it from dripping onto the food surface and affecting the taste. The groove 26 and the pit 46 protrude in opposite directions, which helps the cover plate bottom wall 43 and the heat conducting plate bottom wall 23 to approach each other.

[0103] Preferably, the heating wire 25 is located on the side of the horizontal portion 24 of the heat conducting plate facing the inner lining 11 , so that the heat generated by the heating wire 25 can be transferred to the cover plate 41 more quickly.

[0104] Preferably, in the projection of the cover body 10 in the vertical direction, the cover plate bottom wall 43 completely covers the heat conducting plate bottom wall 23. Preferably, in the projection of the cover body 10 in the vertical direction, the heat conducting plate bottom wall 23 and the cover plate bottom wall 43 are aligned with each other.

[0105] The inventors of this application conducted comparative experiments on the removal of condensed water on the cover plate 41, using different distances between the heating element 20 and the cover plate 41. For example, at an AC operating voltage of 220V, using approximately 600g of rice for cooking, after heating for 20 minutes, the experimental data varied with the distances between the cover plate 41 and the bottom wall 23 of the heat conducting plate (see Table 1 below).

[0106] Table 1 Heat transfer rate between heating components and cover at different distances

[0107] Distance (mm) Cover temperature (℃) Heat conduction plate temperature (℃) Heat conversion rate 0 100 105.6 98.7％ 0.2 97.2 98.4 98.8％ 0.3 98.2 101.5 96.7％ 0.4 98.7 103.3 95.5％ 0.5 96 102.2 94％ 0.6 91 98.6 92％ 0.7 85.5 97.6 87.6％ 0.8 75 97 77.3％ 0.9 76 97.5 78％

[0108] The heat conversion rate in Table 1 is the heat conversion rate of heat transferred from the heating component 20 to the cover plate 41. According to the heat conversion rate data, when the gap between the heating component 30 and the cover plate 41 is less than or equal to 0.5 mm, the heat conversion rate between the heating component 20 and the cover plate 41 is high, and the condensation water removal effect is better.

[0109] In existing rice cookers, the heating element 20 is separated from the inner lining 11 by a heat insulating member to prevent the inner lining 11 from being deformed by heat or the inner lining 11 from exceeding the temperature limit (not meeting the national safety standard). The installation of a heat insulating member increases the cost of the product and makes the assembly process more complicated. In this application, no heat insulating member is provided between the heating element 20 and the inner lining 11, and the inner lining 11 dissipates heat by providing heat dissipation holes 12 (see Figure 5 For example, the heat conducting plate 21 (specifically, the heat conducting plate sidewalls 22 ) are directly mounted to the liner 11 .

[0110] The cooking appliance 100 has a centerline PM extending along its length and generally has an axisymmetric shape that is generally symmetrical about this centerline PM. Consequently, the inner liner 11 also has a shape that is generally symmetrical about this centerline PM (which also serves as the centerline of the inner liner 11). Preferably, the heat dissipation holes 12 are also distributed symmetrically about this centerline PM, which facilitates the processing of the inner liner 11 by injection molding.

[0111] Preferably, in the vertical projection of the cover 10, the heat conducting plate 21 covers all of the heat dissipation holes 12. For example, in the vertical projection of the cover 10, the heat conducting plate bottom wall 23 covers all of the heat dissipation holes 12. Thus, the heat dissipation holes 12 are located in the area of ​​the liner 11 that receives the most heat from the heat generating component 20, facilitating rapid heat dissipation from the liner 11 while also reducing the area of ​​the liner 11 receiving heat from the heat generating component 20. For example, the liner 11 is provided with an annular rib 17 for mounting the heat conducting plate side wall 22, and all of the heat dissipation holes 12 are located on the inner circumference of the annular rib 17.

[0112] In the illustrated embodiment, the inner lining 11 is provided with five heat dissipation holes 12. This application does not impose a specific limit on the number of heat dissipation holes 12. Under the premise of ensuring the strength of the inner lining 11, in order to accelerate heat dissipation, as many heat dissipation holes 12 as possible can be provided, or the area of ​​each heat dissipation hole 12 can be increased as much as possible.

[0113] By providing the heat dissipation holes 12, the heat dissipation problem of the lining 11 can be well solved, so that the cover body 10 does not need to be provided with a heat insulating member, and there is no need to use high temperature resistant materials to make the lining 11, thereby controlling product cost and injection molding quality.

[0114] The processes and steps described in all the preferred embodiments described above are merely examples. Unless adverse effects occur, various processing operations may be performed in a different order from the above process. The order of the steps in the above process may also be increased, combined, or deleted according to actual needs.

[0115] In understanding the scope of this application, the term "comprise" and its derivatives as used herein are intended to be open terms that specify the presence of recited features, elements, components, groups, wholes, and / or steps, but do not exclude the presence of other unrecorded features, elements, components, groups, wholes, and / or steps. This concept also applies to words with similar meanings, such as the terms "include," "have," and their derivatives.

[0116] As used herein, the terms "attached" or "attached" include: configurations where an element is directly secured to another element by securing it directly to the other element; configurations where an element is indirectly secured to the other element by securing it to an intermediate member that is in turn secured to the other element; and configurations where one element is integral with the other, i.e., one element is substantially a part of the other. This definition also applies to words with similar meanings such as "connect," "connect," "couple," "mount," "bond," "secure," and their derivatives. Finally, terms of degree such as "substantially," "approximately," and "approximately" as used herein represent an amount of deviation that would modify the term such that the end result would not be significantly changed.

[0117] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the art of this application. The terms used herein are merely for describing specific implementation purposes and are not intended to limit this application. 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 is otherwise indicated.

[0118] The present application has been described through the above-described embodiments, but it should be understood that the above-described embodiments are for illustrative and illustrative purposes only and are not intended to limit the present application to the described embodiments. In addition, those skilled in the art will understand that the present application is not limited to the above-described embodiments, and that various variations and modifications may be made based on the teachings of the present application, all of which fall within the scope of protection claimed in the present application.

Claims

1. A cover for a cooking utensil, characterized in that: include: a cover plate, located at the bottom of the cover body and forming a lower surface of the cover body, and used for covering the opening of the cooking cavity; and A heating component is located above the cover plate and is used to generate heat and transfer heat to the cover plate. Wherein, when the cover body is assembled, the minimum size of the gap between the cover plate and the heating component is not greater than 0.5 mm.

2. The cover according to claim 1, wherein: The cover also includes: Lining; and a removable cover assembly detachably connected to the liner, the removable cover assembly comprising the cover plate, Wherein, the heating component is arranged on a side of the lining facing the detachable cover component, and when the detachable cover component is connected to the lining, the minimum size of the gap is not greater than 0.5 mm.

3. The cover according to claim 2, wherein: The heating component includes: a heat conducting plate, disposed on a side of the liner facing the removable cover assembly; and a heating wire, arranged on a side of the heat conducting plate facing the inner lining, for generating heat when powered on; Wherein, when the detachable cover assembly is connected to the liner, the minimum gap between the cover plate and the heat-generating assembly is located between the cover plate and the heat-conducting plate.

4. The cover according to claim 3, wherein: When the removable cover assembly is connected to the liner, a minimum gap between the cover plate and the thermally conductive plate is located between an upper surface of the cover plate and a lower surface of the thermally conductive plate.

5. The cover according to claim 4, wherein: The cover plate includes at least one horizontal cover plate portion extending substantially horizontally, and the heat conducting plate includes at least one horizontal heat conducting plate portion extending substantially horizontally. When the removable cover assembly is connected to the liner, the horizontal portion of the heat conducting plate is opposite to the horizontal portion of the cover plate, and the minimum gap between the cover plate and the heat conducting plate is located between the upper surface of the horizontal portion of the cover plate and the lower surface of the horizontal portion of the heat conducting plate.

6. The cover according to claim 5, wherein: The heating wire is arranged on a side of the horizontal portion of the heat conducting plate facing the inner lining.

7. The cover according to claim 3, wherein: The heat conducting plate is provided with an upwardly protruding groove; and / or The cover plate is provided with a downwardly protruding pit.

8. The cover according to claim 3, wherein: The heat conducting plate is directly connected to the inner liner, and the inner liner is provided with heat dissipation holes.

9. The cover according to claim 8, wherein: In a projection of the cover along the up-down direction, the heat conducting plate covers all the heat dissipation holes.

10. The cover according to claim 8, wherein: The heat dissipation holes are distributed symmetrically about the center line of the liner.

11. The cover according to claim 2, wherein: When the removable cover assembly is connected to the liner, the minimum gap between the cover plate and the heat generating component is located between the upper surface of the cover plate and the lower surface of the heat generating component.

12. The cover according to any one of claims 1 to 11, characterized in that: In the projection of the cover body along the up and down directions, the cover plate completely covers the heat generating component.

13. The cover according to claim 12, wherein: In the projection of the cover body along the up-down direction, the heating component and the cover plate are aligned with each other.

14. A cooking utensil, characterized in that: include: A pot body, comprising a cooking cavity for holding food; and The cover according to any one of claims 1 to 13, used to cover the pot body, When the cover body covers the pot body, the cover plate covers the opening of the cooking cavity.

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