CN220546165U - Cooking utensil - Google Patents

Abstract

The utility model discloses a cooking utensil, which comprises a cover body and a cooker body, wherein the cover body is arranged on the cooker body in an openable and closable manner so as to form a cooking space between the cover body and the cooker body, the cover body comprises a ceramic element for radiating infrared rays to the cooking space after being heated, the lower surface of the ceramic element is at least partially exposed to the cooking space, the ceramic element comprises a ceramic main body and a ceramic convex part, the ceramic convex part protrudes downwards from the lower surface of the ceramic main body, and the ceramic convex part is exposed to the cooking space. According to the utility model, the ceramic protruding part can be used for shortening the radiation distance between the ceramic element and the food to a certain extent, the radiation distance of infrared rays to the food can be shortened, the heat radiation intensity and efficiency can be improved to a certain extent by shortening the radiation distance, the energy loss is avoided, the effect of heating the food is better, and the market competitiveness of the product can be improved.

Description

Cooking utensil

Technical Field

The utility model relates to the technical field of kitchen appliances, in particular to a cooking appliance.

Background

In existing cooking appliances such as electric cookers, the cover body of the existing cooking appliance is provided with an infrared heating device, for example, a carbon fiber heating tube, and can radiate infrared rays during cooking, so that food can be assisted to be cooked directly by heat radiation, and the cooked food is more fragrant and delicious. And continues to radiate infrared rays to the food for heat preservation after cooking.

A detachable cover which can be detached from the cover body is arranged below the infrared heating device, and the detachable cover transmits light so that infrared rays can pass through. The infrared heating elements in the existing infrared heating device are integrally arranged on the same plane, so that the effect of heating food is poor.

Accordingly, there is a need for a cooking appliance to at least partially solve the above problems.

Disclosure of Invention

A series of concepts in a simplified form are introduced in the summary of the utility model, which will be described in further detail in the detailed description. The summary of the utility model is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

In order to at least partially solve the above problems, the present utility model provides a cooking appliance including a cover and a pot, the cover being openably and closably provided to the pot to form a cooking space between the cover and the pot, the cover including:

a ceramic element for radiating infrared rays to the cooking space after being heated, a lower surface of the ceramic element being at least partially exposed to the cooking space, the ceramic element comprising:

a ceramic body; and

and a ceramic protrusion protruding downward from a lower surface of the ceramic body, and exposed to the cooking space.

According to this scheme, the ceramic convex part can draw the distance between ceramic element and the food, and the radiation distance that infrared ray reached the food shortens to a certain extent. Because the heat radiation intensity is generally inversely proportional to the positive power of N (N is 3, for example) of the distance, that is, the shorter the radiation distance is, the larger the heat radiation intensity is, so that the heat radiation intensity and efficiency can be improved to a certain extent by shortening the radiation distance, the energy loss is avoided, the effect of heating food is better, and the market competitiveness of the product can be improved.

Optionally, the cover body further comprises a detachable cover, the detachable cover is arranged below the ceramic element and is provided with a detachable cover opening, and the ceramic protruding part corresponds to the position of the detachable cover opening.

According to the scheme, the infrared rays generated by the ceramic element can radiate towards the inner pot through the opening of the detachable cover, and the space at the opening of the detachable cover is utilized to enable the ceramic convex part to protrude downwards, so that the radiation distance of the ceramic element is shortened. And the ceramic convex part can reduce the height difference between the ceramic element and the detachable cover, the internal appearance of the cover body is more orderly overall, so that a user can feel better to the internal appearance of the cover body when the cover body is opened, and the market competitiveness of the product can be improved.

Optionally, the ceramic protrusion protrudes downward to be close to the removable cover opening, or into the removable cover opening, or is flush with a lower surface of the removable cover opening, or passes through the removable cover opening.

According to this aspect, the ceramic protrusion may be dimensioned to have various relative positions with the removable cover opening as desired, and further, manufacturing tolerances and/or mounting tolerances may also affect the relative positions of the ceramic protrusion and the removable cover opening.

Optionally, the ceramic protrusion is adapted in shape and/or size to the removable cover opening; and/or the bottom surface of the ceramic protrusion is planar.

According to the scheme, the inner appearance of the cover body can be further tidier overall, so that the user can feel better to the inner appearance of the cover body when the cover body is opened.

Optionally, the cover further includes a heating element, and the heating element is used for heating the ceramic element.

According to the scheme, the ceramic element is heated by the heating element to enable the ceramic element to be at a higher temperature, so that the ceramic element can radiate infrared rays which are more effective in heating food, and the preset power or the preset temperature of the heating element can be preset to heat the ceramic element so as to control the temperature of the ceramic element, and the ceramic element is suitable for respective cooking conditions.

Optionally, the ceramic body extends over and through the ceramic boss.

According to the scheme, the ceramic element is not provided with the ceramic concave part which is concave downwards, so that the design freedom of the ceramic element can be improved.

Optionally, the cover body further includes a heating element, where the heating element is used to heat the ceramic element, and the heating element is disposed on the upper surface of the ceramic body and at least partially corresponds to the position of the ceramic protrusion.

According to this aspect, the heating element and the ceramic convex portion can be made closer to each other, and the heating element can be more effectively transmitted to the ceramic convex portion, so that the ceramic convex portion radiates more infrared rays.

Optionally, the ceramic element further comprises a ceramic recess recessed downwardly from the upper surface of the ceramic body, the ceramic recess corresponding to the location of the ceramic protrusion.

According to the scheme, the thickness of the ceramic element can be locally reduced, the material consumption of the ceramic element is reduced, and the material cost of the ceramic element is reduced.

Optionally, the cover body further includes a heating element, the heating element is used for heating the ceramic element, and the heating element is disposed in the ceramic concave portion.

According to the scheme, the heating element and the ceramic convex part are closer, the heating element can be more effectively transferred to the ceramic convex part, the ceramic convex part radiates more infrared rays, and the thermal efficiency of the heating element is improved; and the utilization rate of the internal space of the cover body is improved, which is beneficial to the miniaturization of the cover body.

Optionally, the ceramic recess and the ceramic protrusion are adapted in shape and/or size; the scheme is convenient for the production and manufacture of the ceramic element, can enable the ceramic concave part to have larger concave area, and further reduces the material consumption of the ceramic element.

And/or the ceramic element is formed into the ceramic concave part and the ceramic convex part through integral concave, the scheme can facilitate the production and manufacture of the ceramic element, and the thickness of the ceramic element at the ceramic main body and the ceramic convex part is approximately the same.

And/or the bottom surface of the ceramic concave part is a plane, the scheme is convenient for mounting and fixing the heating element.

Optionally, the cover body further comprises a lining, the lining is provided with a lining opening and a supporting portion, the supporting portion is arranged around the lining opening, and the outer periphery of the ceramic main body is lapped on the bottom wall of the supporting portion and is abutted to the side wall of the supporting portion.

According to the scheme, the supporting part can provide upward supporting force for the ceramic element and limit the movement of the ceramic element in the horizontal direction, so that the ceramic element is convenient to fix.

Optionally, the cover body further includes a removable cover and a sealing ring, the removable cover is disposed below the ceramic element and is provided with a removable cover opening, the removable cover includes an opening edge portion forming the removable cover opening, and the sealing ring is disposed between the opening edge portion and the ceramic body and between the supporting portion and the ceramic body.

According to the scheme, the gap between the ceramic element and the lining and the gap between the ceramic element and the detachable cover can be sealed, so that steam is prevented from entering the cover body from the gaps, and the sealing effect of the cover body is improved.

Optionally, the same sealing ring is disposed between the opening edge portion and the ceramic body and between the support portion and the ceramic body;

according to the scheme, gaps at different positions can be sealed by the same sealing ring; the number of parts in the cover body can be reduced, the structure of the cover body is simplified, and the assembly efficiency of the parts in the cover body is improved.

Or different sealing rings are respectively arranged between the edge part of the opening and the ceramic main body and between the supporting part and the ceramic main body.

According to the scheme, gaps at different positions can be independently sealed, the sealing effect is better, the structure of each sealing ring is simplified, and the production and the manufacture of each sealing ring are facilitated.

Optionally, the support portion is provided with a positioning protrusion, the ceramic element is provided with a positioning opening, and the positioning protrusion is at least partially located in the positioning opening.

According to this scheme, be provided with the location structure of mutually supporting location in ceramic component and inside lining department, can prevent the maloperation when installing ceramic component.

Optionally, the cover body further comprises a lining and a fixing piece connected with the lining, wherein the fixing piece is located above the ceramic element and presses down the ceramic element, and the fixing piece is integrally configured into an open or closed annular member or is configured into a plurality of members and is arranged at intervals.

According to this scheme, the setting piece can provide decurrent pressure to ceramic element to restrict ceramic element's removal in vertical direction, thereby can be fixed in the inside lining firmly reliably, assembly structure is simple, assembly process easy operation.

Optionally, a steam channel structure is arranged in the cover body, and the ceramic element is provided with an avoidance through hole or an avoidance gap for the steam channel structure to penetrate through;

according to the present embodiment, the ceramic element has a large radiation area of infrared rays, and the heat conductive member has a large heat transfer area of heat, so that more heat can be transferred.

Or a steam channel structure is arranged in the cover body, and the ceramic element is integrally positioned on one side of the steam channel structure.

According to this solution, the ceramic element is relatively small in size and low in material cost.

Drawings

The following drawings are included to provide an understanding of the utility model and are incorporated in and constitute a part of this specification. Embodiments of the present utility model and their description are shown in the drawings to explain the principles of the utility model.

In the accompanying drawings:

fig. 1 is a sectional view of a cover according to a preferred embodiment of the present utility model;

FIG. 2 is an exploded perspective cross-sectional view of a portion of the cover shown in FIG. 1;

FIG. 3 is an enlarged view of portion A of FIG. 1;

FIG. 4 is a perspective view of the ceramic element shown in FIG. 2;

FIG. 5 is a cross-sectional view of the ceramic element with the heating element of FIG. 2;

fig. 6 is a cross-sectional view of a ceramic element with a heating element according to another embodiment of the present utility model.

Reference numerals illustrate:

1 inner liner of cover 10

11 liner opening 12 support

13 fixing portion 14 positioning projection

20 face lid assembly 30 removable lid assembly

31 removable cover 32 removable cover seat

33 removable cover opening 34 projection

Sealing ring for 35 steam port 36 boiler port

37 opening edge portion 40 ceramic element

41 ceramic body 42 ceramic protrusion

43 ceramic recess 44 relief through hole

45 locating mouth 51 heating element

52 first seal 53 second seal

54 compression member 60 steam passage structure

61 steam valve 62 steam channel wall

63 steam channel seal 70 fixture

71 mounting portion 72 pressing portion

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present utility model. It will be apparent, however, to one skilled in the art that the utility model may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the utility model.

In the following description, a detailed description will be given for the purpose of thoroughly understanding the present utility model. It will be apparent that embodiments of the utility model may be practiced without limitation to the specific details that are familiar to those skilled in the art. Preferred embodiments of the present utility model are described in detail below, however, the present utility model may have other embodiments in addition to these detailed descriptions.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is intended to include the plural unless the context clearly indicates otherwise. Furthermore, it will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Ordinal numbers such as "first" and "second" cited in the present utility model are merely identifiers and do not have any other meaning, such as a particular order or the like. Also, for example, the term "first component" does not itself connote the presence of "second component" and the term "second component" does not itself connote the presence of "first component".

It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like are used herein for illustrative purposes only and are not limiting.

Exemplary embodiments according to the present utility model will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It should be appreciated that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art.

The preferred embodiment of the present utility model provides a cooking appliance comprising a pot body and a cover body 1 (as shown in fig. 1). The pot body is provided with a cylindrical inner pot containing part. The inner pot can be fixedly arranged at the inner pot containing part, or can be freely placed in the inner pot containing part or taken out from the inner pot containing part, so that the inner pot can be conveniently cleaned. The inner pot is typically made of a metallic material and has a circular opening in its upper surface for holding the material to be heated, such as rice, soup, etc. The cooker body comprises a heating device, such as a heating plate, for heating the inner pot.

It is understood that the cooking appliance according to the present utility model may be an electric rice cooker, an electric pressure cooker or other cooking appliances, and the cooking appliance may have various functions of cooking porridge or the like in addition to the function of cooking rice.

The cover 1 has a shape substantially corresponding to the pot. The cover 1 is arranged on the cooker body in an openable and closable manner, specifically, is pivoted to the cooker body through a pivot shaft, and can freely pivot between a covering position and an opening position relative to the cooker body around the pivot axis where the pivot shaft is located, so as to facilitate covering and opening of the cooker body. When the cover body 1 is covered on the cooker body, the cover body covers the inner cooker and forms a cooking space with the inner cooker. The lid 1 also typically has a port sealing ring, which may be made of e.g. a rubber material, arranged between the lid 1 and the inner pot for sealing the cooking space when the lid 1 is in the closed state.

Fig. 1 to 4 schematically show a cover 1 according to a preferred embodiment of the present utility model. As shown in fig. 1 and 2, the lid 1 may include an inner liner 10, a face cap assembly 20 located on an upper or outer side of the inner liner 10, and a removable cap assembly 30 located on a lower or inner side of the inner liner 10. The face cap assembly 20 may be mounted to the liner 10 by other suitable means, such as snap or fastener fastening. The removable lid assembly 30 may be removably mounted to the liner 10 by other suitable means, such as snap-fit or fastener fastening, to facilitate removal of the removable lid assembly 30 for cleaning.

It should be noted that directional terms used herein to describe the respective components, portions, etc. of the cover 1, such as "upper", "lower", "above", "below", "upward", "downward", etc., are with respect to the cover 1 in a horizontally placed and closed state.

The removable lid assembly 30 may include a removable lid 31, an annular removable lid seat 32, and the above-described port seal 36. The removable lid seat 32 is capable of removably attaching the removable lid 31, the port seal 36 to the liner 10. The removable cover 31 may be coupled to the removable cover holder 32 by other suitable means, such as snap-fit or fastener fastening, and the pan opening seal 36 is compressed to the removable cover 31.

The cover 1 further comprises a ceramic element 40 and a heating element 51 constituting a top heating means. The ceramic element 40 is used to radiate infrared rays to the cooking space after being heated. The heating element 51 is used for heating the ceramic element 40, for example, heating the ceramic element 40 with a preset power or a preset temperature, so that the ceramic element 40 is heated and infrared rays are radiated to the cooking space. Further, the heating power or heating temperature of the heating element 51 may be controlled, thereby controlling the temperature of the ceramic element 40, suitable for the respective cooking conditions.

The ceramic element 40 is heated to radiate infrared rays of various wavelengths to the cooking space, and thus may also be referred to as an infrared ceramic element. The main wavelength of infrared light is 2 μm to 14. Mu.m, for example, 2 μm, 4 μm, 6 μm, 8 μm, 10 μm, 12 μm, 14 μm, etc. The heating element 51 can raise the temperature of the ceramic element 40 to a preset temperature, which may be, for example, 80-300 c, to radiate infrared rays having a main wavelength of 2-14 μm to assist in cooking food. The terminals 54 of the heating element 51 are electrically connected to the control board by wires so as to be operated by electric control.

The ceramic element 40 radiates infrared rays with a main wavelength of 2-14 μm to the cooking space during the cooking process, thereby improving the heat utilization efficiency, effectively heating the food, uniformly heating the food, exciting the fragrance of the food, and making the food more delicious; the ceramic element 40 also generates infrared radiation to keep the food warm after the cooking process.

The lower surface of the ceramic element 40 can be at least partially exposed to the cooking space. That is, the underside of the ceramic element 40 is not provided with an isolation guard to isolate the ceramic element 40 from the cooking void. Steam generated during cooking may directly contact the lower surface of the ceramic element 40. And the ceramic element 40 is hard and not easy to damage, so that it can be at least partially exposed to the cooking space without providing an additional isolation guard for isolating and protecting it. This reduces the number of components in the cover 1, simplifies the structure of the cover 1, and reduces the cost.

A portion of the ceramic element 40 can isolate the heating element 51 from the cooking space and avoid the risk of electric shock by direct contact of the user with the heating element 51 when the cover 1 is opened.

And the ceramic element 40 can generate infrared rays through self-heating, and has high self-temperature, so that the condensate water can be effectively prevented from being generated at the lower surface of the ceramic element or volatilized, and the influence of the condensate water backflow on the taste of food is avoided.

The heating element 51 is provided at a portion of the ceramic element 40 other than the lower surface thereof. The arrangement may be arbitrarily selected as desired, for example, the heating element 51 is laid on the ceramic element 40. By supporting and fixing the heating element 51 by means of the ceramic element 40, the arrangement of the ceramic element 40 and the heating element 51 can be made more compact, the heating effect of the ceramic element 40 is better, the utilization rate of the internal space of the cover body 1 is improved, and the miniaturization of the product is facilitated. As shown in fig. 2, the liner 10 is provided with a liner opening 11. Ceramic element 40 is mounted at liner opening 11. The removable cover 31 is disposed below the ceramic element 40. The detachable cover 31 can be provided with a detachable cover opening 33 in part. The removable cover opening 33 corresponds to the position of the ceramic element 40. In other words, the removable cover opening 33 is located directly below the ceramic element 40. Infrared rays generated by the ceramic element 40 can radiate toward the inner pot through the liner opening 11 and the detachable lid opening 33.

To better secure the ceramic element 40, the liner 10 may be provided with a support 12, as shown in fig. 2 and 3. The support 12 is arranged around the liner opening 11, the support 12 forming a closed annular structure. The outer peripheral edge of the ceramic element 40 can overlap the bottom wall of the support 12 and abut the side wall of the support 12. Thus, the support 12 can provide an upward supporting force to the ceramic element 40 and restrict the movement of the ceramic element 40 in the horizontal direction, facilitating the fixation of the ceramic element 40.

The cover 1 may also comprise a sealing ring. The removable cover 31 includes an opening edge portion 37 that forms the removable cover opening 33. The seal ring is provided between the opening edge portion 37 and the ceramic element 40 and between the support portion 12 and the ceramic element 40. In one embodiment, the same seal ring is provided between the opening edge portion 37 and the ceramic element 40 and between the support portion 12 and the ceramic element 40. Thereby, the gap between the ceramic element 40 and the removable cover 31 and the gap between the ceramic element 40 and the liner 10 can be simultaneously sealed with one sealing ring. Specifically, the sealing ring is sleeved on the supporting portion 12, and one part of the sealing ring is clamped between the ceramic element 40 and the supporting portion 12, and the other part of the sealing ring is clamped between the supporting portion 12 and the detachable cover 31.

In another embodiment, different sealing rings are provided between the opening edge portion 37 and the ceramic element 40 and between the support portion 12 and the ceramic element 40, respectively. Thereby, the gaps between the ceramic element 40 and the removable cover 31 and between the ceramic element 40 and the liner 10 can be sealed with different sealing rings, respectively.

Specifically, the seal ring includes a first seal ring 52. The first seal 52 can be disposed at the removable cover opening 33. The first seal 52 is disposed between the opening edge 37 and the ceramic element 40. The illustrated embodiment schematically shows the first seal ring 52 secured to the removable cover 31 and having its upper end abutting the ceramic element 40; for example, the first seal ring 52 may be fixed to the detachable cover 31 by the pressing member 54, the pressing member 54 and the first seal ring 52 are provided with through holes at intervals, the detachable cover 31 is provided with clamping legs at intervals, and the clamping legs are bent after passing through the through holes of the pressing member 54 and the first seal ring 52. Thereby, gaps between the ceramic element 40 and the detachable cover 31 can be sealed, and steam is prevented from entering the inside of the cover 1 from these gaps, thereby improving the sealing effect of the cover 1. The first seal ring 52 is integrally made of a flexible and resilient material.

The seal ring includes a second seal ring 53. A second seal ring 53 can be provided at liner opening 11. Specifically, the second seal ring 53 is provided at least between the support portion 12 and the ceramic element 40. The second seal ring 53 may be fixed to the support 12 or the ceramic element 40. The illustrated embodiment schematically shows that the second sealing ring 53 is fitted to the outer periphery of the ceramic element 40, for example, the second sealing ring 53 is provided with a mounting groove opening toward its center, by which it is fitted to the outer periphery of the ceramic element 40. Thereby, gaps between the ceramic element 40 and the liner 10 can be sealed, and steam is prevented from entering the inside of the lid body 1 from these gaps, thereby improving the sealing effect of the lid body 1.

Referring back to fig. 1, the cover 1 may be provided with a steam passage structure 60, which is provided at the rear of the cover 1. The steam channel structure 60 forms a vertically extending steam channel. Specifically, the steam channel structure 60 may include a steam valve 61, a steam channel wall 62, and a steam channel seal 63. The steam valve 61 is provided on the cover assembly 20. The steam channel wall 62 extends in a vertical direction and is located between the face cap assembly 20 and the liner 10. The steam channel walls 62 enclose a steam channel, and the steam channel seal 63 is provided with a through-going steam channel.

In order to enhance the effect of heating the food, the ceramic element 40 is provided with a downwardly protruding portion. Specifically, as shown in fig. 1, 4 and 5, the ceramic element 40 includes a ceramic body 41 and a ceramic protrusion 42, the ceramic protrusion 42 protrudes downward from a lower surface of the ceramic body 41, and the ceramic protrusion 42 can be exposed to the cooking space. The shape, coverage area, downward projecting size, etc. of the ceramic boss 42 may be set as desired. The ceramic protrusion 42 may be disposed such that the ceramic body 41 is not exposed to the cooking space, or a small portion of the ceramic body 41 surrounding the ceramic protrusion 42 is exposed to the cooking space.

The ceramic protrusion 42 can shorten the distance between the ceramic element 40 and the food, and the radiation distance of the infrared rays to the food is shortened to some extent. Because the heat radiation intensity is generally inversely proportional to the positive power of N (N is 3, for example) of the distance, that is, the shorter the radiation distance is, the larger the heat radiation intensity is, so that the heat radiation intensity and efficiency can be improved to a certain extent by shortening the radiation distance, the energy loss is avoided, the effect of heating food is better, and the market competitiveness of the product can be improved.

The ceramic body 41 is annular in shape as a whole, and the ceramic boss 42 is provided centrally on the ceramic body 41. A mounting and sealing structure is formed between the ceramic body 41 and the liner 10 and the removable cover 31. Specifically, the outer peripheral edge of the ceramic body 41 is overlapped on the bottom wall of the support portion 12 and abuts against the side wall of the support portion 12. The seal ring is provided between the opening edge portion 37 and the ceramic body 41 and between the support portion 12 and the ceramic body 41. As described above, in one embodiment, the same seal ring is provided between the opening edge portion 37 and the ceramic body 41 and between the support portion 12 and the ceramic body 41. In another embodiment, different sealing rings are provided between the opening edge portion 37 and the ceramic body 41 and between the support portion 12 and the ceramic body 41, respectively.

The ceramic boss 42 can correspond to the position of the removable cover opening 33. That is, the ceramic protrusion 42 can be exposed from the detachable lid opening 33. This makes it possible to project the ceramic projections 42 downward using the space at the removable cover opening 33 so as to shorten the radiation distance of the ceramic element 40. And the ceramic protrusion 42 can reduce the height difference between the ceramic element 40 and the detachable cover 31, the internal appearance of the cover 1 is more neat as a whole, so that the user can feel better to the internal appearance of the cover 1 when the cover 1 is opened, and the market competitiveness of the product can be improved.

The bottom surface of the ceramic boss 42 may be planar. The ceramic protrusion 42 is matched in shape and/or size with the detachable lid opening 33, for example, in the illustrated embodiment, the detachable lid opening 33 is in a shape of a non-circular shape, so that the ceramic protrusion 42 is also in a shape of a non-circular shape, and of course, the shapes of the detachable lid opening 33 and the ceramic protrusion 42 may be any suitable shape such as a full circular shape or the like; the removable cover opening 33 and the ceramic boss 42 are sized to provide a larger footprint for the ceramic boss 42. This can further make the inner shape of the lid 1 as a whole more regular, and make the user feel better to the inner shape of the lid 1 when the lid 1 is opened.

The ceramic boss 42 may protrude downward to be close to the detachable cover opening 33, and a bottom surface of the ceramic boss 42 may be located above the detachable cover opening 33 and may have a small gap with the detachable cover opening 33. Alternatively, the ceramic boss 42 may protrude downward into the removable cover opening 33 with the bottom surface of the ceramic boss 42 within the removable cover opening 33. Alternatively, the ceramic protrusion 42 may protrude downward to be flush with the lower surface of the detachable cover opening 33, and the bottom surface of the ceramic protrusion 42 is flush with the lower surface of the detachable cover opening 33. Alternatively, the ceramic boss 42 may protrude downward through the removable cover opening 33, with the bottom surface of the ceramic boss 42 slightly beyond the removable cover opening 33.

The downwardly projecting dimension of the ceramic boss 42 may be set to various relative positions with the removable cover opening 33 as desired, and further, manufacturing tolerances and/or mounting tolerances may also affect the relative positions of the ceramic boss 42 and the removable cover opening 33.

For the embodiment shown in fig. 1-5, the ceramic element 40 further includes a ceramic recess 43, the ceramic recess 43 being recessed downwardly from the upper surface of the ceramic body 41. The ceramic concave portion 43 corresponds to the position of the ceramic convex portion 42, in other words, the ceramic concave portion 43 is provided on the opposite surface of the ceramic convex portion 42. Thus, the thickness of the ceramic element 40 can be locally reduced, the material consumption of the ceramic element 40 is reduced, and the material cost of the ceramic element 40 is reduced. The heating element 51 can be provided in the ceramic recess 43, specifically, on the bottom surface of the ceramic recess 43. The scheme can enable the heating element 51 to be closer to the ceramic convex part 42, can transfer the heating element 51 to the ceramic convex part 42 more effectively, enables the ceramic convex part 42 to radiate more infrared rays, and improves the thermal efficiency of the heating element 51; and the utilization rate of the internal space of the cover body 1 is improved, which is beneficial to the miniaturization of the cover body 1.

The bottom surface of the ceramic recess 43 is planar to facilitate mounting and securing of the heating element 51. Illustratively, the heating element 51 may be adhered to the bottom surface of the ceramic recess 43 by any suitable means, such as tape, adhesive, or the like. Of course, the heating element 51 may be attached to the bottom surface of the ceramic recess 43 in other manners. The heating element 51 may be attached to the bottom surface of the ceramic concave portion 43 or may be at least partially embedded in the bottom surface of the ceramic concave portion 43.

The shape and/or size of the ceramic concave portion 43 and the ceramic convex portion 42 are adapted, for example, in the illustrated embodiment, the shape of the ceramic convex portion 42 is in a non-circular shape, so that the shape of the ceramic concave portion 43 is also in a non-circular shape, and of course, the shape of the ceramic concave portion 43 and the ceramic convex portion 42 may be any suitable shape such as a full circular shape, so as to facilitate the production and manufacture of the ceramic element 40; the ceramic concave portion 43 and the ceramic convex portion 42 can be sized so that the ceramic concave portion 43 has a larger concave area, and the material consumption of the ceramic element 40 can be further reduced. The ceramic element 40 is formed into the ceramic concave portion 43 and the ceramic convex portion 42 by being integrally concave downward, which can facilitate the production and manufacture of the ceramic element 40, and the thickness of the ceramic element 40 at the ceramic body 41 and the ceramic convex portion 42 is substantially the same.

In another embodiment, as shown in fig. 6, the ceramic element 40 may not be provided with the above-described downwardly concave ceramic recess 43. Specifically, the ceramic body 41 extends above the ceramic boss 42 and penetrates the ceramic boss 42. The thickness of the ceramic element 40 at the ceramic protrusion 42 is equal to the total thickness of the ceramic body 41 and the ceramic protrusion 42. Thereby, the degree of freedom in design of the ceramic element 40 can be improved.

The heating element 51 is provided on the upper surface of the ceramic body 41. Illustratively, the heating element 51 may be adhered to the upper surface of the ceramic body 41 by any suitable means, such as adhesive tape, glue, or the like. Of course, the heating element 51 may be attached to the upper surface of the ceramic body 41 by other means. The heating element 51 may be attached to the upper surface of the ceramic element 40 or may be at least partially embedded in the upper surface of the ceramic element 40. The heat generating element 51 at least partially corresponds to the position of the ceramic convex portion 42, and the heat generating element 51 can be made closer to the ceramic convex portion 42, so that the heat generating element 51 can be more effectively transmitted to the ceramic convex portion 42, and the ceramic convex portion 42 can radiate more infrared rays.

The heating element 51 is generally made of metal. The illustrated embodiment schematically shows that the heating element 51 is constructed in a wire shape, in other words, the heating element 51 is a heating wire. The wire-shaped heating element 51 may be laid around a single wire or a plurality of wires in series or parallel. In other embodiments, not shown, the heating element 51 may be constructed in a sheet form, for example a sheet metal, the sheet-form heating element 51 lying horizontally; the heating element 51 may be configured as a heating layer formed on the upper surface of the ceramic element 40. Of course, the specific structure of the heating element 51 is not limited, and may be arbitrarily set as needed.

As shown in fig. 2 and 4, the support 12 may be provided with positioning projections 14, and the ceramic element 40 is correspondingly provided with positioning openings 45. The positioning projection 14 can be at least partially located within the positioning opening 45. Positioning structures which are mutually matched and positioned are arranged at the positions of the ceramic element 40 and the lining 10, so that misoperation during installation of the ceramic element 40 can be prevented.

In a not shown embodiment, the ceramic element 40 may be provided with relief notches. The proposal can reduce the consumption of ceramic materials under the condition of increasing the radiation area of infrared rays, can reduce the production cost, and has simple processing technology of the ceramic element 40.

In another embodiment, such as the illustrated embodiment, the ceramic element 40 may be provided with relief through holes 44, in particular on the ceramic body 41. The steam channel structure 60 may be disposed through the relief through hole 44. The ceramic element 40 has a large radiation area of infrared rays, and the processing process of the ceramic element 40 is simple.

In a further embodiment, not shown, the ceramic element 40 is circular and no through holes are provided. The steam channel structure 60 is located on one side, in particular the rear side, of the ceramic element 40. In this version, the ceramic element 40 is not penetrated by the steam channel structure 60 and is of a gauge shape. The ceramic element 40 has a simple structure and is convenient to manufacture.

The detachable cover 31 may be correspondingly provided with a projection 34 projecting toward the center of the detachable cover opening 33. The protruding portion 34 is formed with a steam port 35 communicating with the steam channel structure 60.

The cover 1 further includes a fixing member 70, and the fixing member 70 is positioned above the ceramic element 40 and presses down the ceramic element 40. The fixing member 70 includes a mounting portion 71 and a pressing portion 72 (fig. 3). The mounting portion 71 is detachably connected to the liner 10, for example, the liner 10 is provided with fixing portions 13 at intervals, and the mounting portion 71 is detachably connected to the fixing portions 13. The illustrated embodiment schematically shows the securing member 70 secured to the liner 10 by fasteners such as screws, the mounting portion 71 being provided with screw holes, the securing portion 13 being configured as a Cheng Luoding post, the screw post being attached to the side wall of the support portion 12, the screws passing through the screw holes 73 from top to bottom and then being locked to the screw post. The pressing portion 72 can be abutted against the outer peripheral edge of the ceramic element 40 and press down the ceramic element 40.

In one embodiment, as in the illustrated embodiment, the fixture 70 is integrally constructed as an annular member, and the fixture 70 may be integrally formed with the steam channel wall 62. Of course, a plurality of members may be provided at intervals.

Accordingly, the fixing member 70 can provide downward pressure to the ceramic element 40 and restrict movement of the ceramic element 40 in the vertical direction, so that it can be firmly and reliably fixed to the liner 10, the assembly structure is simple, and the assembly process is easy to operate.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model pertains. The terminology used herein is for the purpose of describing particular implementations only and is not intended to be limiting of the utility model. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features unless the features are not applicable or otherwise indicated in the other embodiment.

The present utility model has been described by way of the above embodiments, but it should be understood that the above embodiments are for illustrative and explanatory purposes only and that the utility model is not limited to the above embodiments, but is capable of numerous variations and modifications in accordance with the teachings of the utility model, all of which fall within the scope of the utility model as claimed.

Claims (16)

1. The utility model provides a cooking utensil, includes lid and a kind of deep pot body, the lid can open and shut set up in a kind of deep pot body, in order to the lid with form the culinary art space between the body of deep pot, its characterized in that, the lid includes:

a ceramic element for radiating infrared rays to the cooking space after being heated, a lower surface of the ceramic element being at least partially exposed to the cooking space, the ceramic element comprising:

a ceramic body; and

and a ceramic protrusion protruding downward from a lower surface of the ceramic body, and exposed to the cooking space.

2. The cooking appliance of claim 1, wherein the cover further comprises a removable cover disposed below the ceramic element and provided with a removable cover opening, the ceramic protrusion corresponding to the location of the removable cover opening.

3. The cooking appliance of claim 2, wherein the ceramic protrusion protrudes downward proximate to or into or flush with a lower surface of the removable cover opening or through the removable cover opening.

4. Cooking appliance according to claim 2, wherein the ceramic protrusion is adapted in shape and/or size to the removable cover opening; and/or the bottom surface of the ceramic protrusion is planar.

5. The cooking appliance of any one of claims 1 to 4, wherein the cover further comprises a heating element for heating the ceramic element.

6. The cooking appliance of any one of claims 1 to 4, wherein the ceramic body extends over and through the ceramic boss.

7. The cooking appliance of claim 6, wherein the cover further comprises a heating element for heating the ceramic element, the heating element being provided on an upper surface of the ceramic body and at least partially corresponding to a position of the ceramic protrusion.

8. The cooking appliance of any one of claims 1 to 4, wherein the ceramic element further comprises a ceramic recess recessed downwardly from an upper surface of the ceramic body, the ceramic recess corresponding to a location of the ceramic protrusion.

9. The cooking appliance of claim 8, wherein the cover further comprises a heating element for heating the ceramic element, the heating element being disposed within the ceramic recess and/or the ceramic recess corresponding to the location of the ceramic protrusion.

10. The cooking appliance of claim 8, wherein the cooking appliance further comprises a handle,

the ceramic recess and the ceramic protrusion are adapted in shape and/or size; and/or

The ceramic element forms the ceramic concave portion and the ceramic convex portion by being integrally recessed; and/or

The bottom surface of the ceramic recess is planar.

11. The cooking appliance according to any one of claims 1 to 4, wherein the cover further comprises a liner provided with a liner opening and a support portion disposed around the liner opening, and an outer periphery of the ceramic body is overlapped on a bottom wall of the support portion and abuts against a side wall of the support portion.

12. The cooking appliance of claim 11, wherein the cover further comprises a removable cover disposed below the ceramic element and provided with a removable cover opening, the removable cover comprising an opening edge portion forming the removable cover opening, and a sealing ring disposed between the opening edge portion and the ceramic body and between the support portion and the ceramic body.

13. The cooking appliance of claim 12, wherein the cooking appliance further comprises a handle,

the same sealing ring is arranged between the opening edge part and the ceramic main body and between the supporting part and the ceramic main body; or alternatively

Different sealing rings are respectively arranged between the opening edge part and the ceramic main body and between the supporting part and the ceramic main body.

14. Cooking appliance according to claim 11, wherein the support part is provided with a positioning protrusion, the ceramic element being provided with a positioning opening, the positioning protrusion being at least partially located in the positioning opening.

15. The cooking appliance according to any one of claims 1 to 4, wherein the cover further comprises a liner and a fixture connected to the liner, the fixture being located above and pressing down the ceramic element, the fixture being integrally configured as an open or closed annular member or as a plurality of members and being disposed at intervals.

16. The cooking appliance according to any one of claims 1 to 4, wherein,

a steam channel structure is arranged in the cover body, and the ceramic element is provided with an avoidance through hole or an avoidance gap for the steam channel structure to penetrate through; or alternatively

The cover body is internally provided with a steam channel structure, and the ceramic element is integrally positioned on one side of the steam channel structure.