CN116406926A - Inner pot, cooking appliance and method for producing an inner pot - Google Patents

Abstract

The invention discloses an inner pot, a cooking utensil and a method for manufacturing the inner pot. The main part of interior pot is the gyration geometry that has upper portion opening and inner chamber that forms by the pot wall around the central axis, the pot wall include the diapire and with the lateral wall that the diapire is connected, the upper portion of lateral wall is around constituteing upper portion open-ended pot mouth, the periphery side of pot mouth is provided with the circumference and upwards is equipped with open-ended support ring the outside of support ring is provided with the parcel layer, the support ring by the parcel layer parcel is connected to the pot mouth. According to the inner pot, the strength and the stability of the pot opening can be improved, so that the inner pot is firmer and more reliable, and the scheme can enable the operation of wrapping the pot opening by the wrapping layer to be more convenient by arranging the opening on the supporting ring.

Description

Inner pot, cooking appliance and method for producing an inner pot

Technical Field

The invention relates to the field of kitchen appliances, in particular to an inner pot, a cooking utensil and a method for manufacturing the inner pot.

Background

The thickness of the pot mouth of the inner pot of the existing cooking utensil is generally basically the same as that of the pot body, and the pot mouth is thinner and has insufficient firmness. The pot mouth is a joint place between the inner surface and the outer surface of the pot body, so that the pot is not easy to treat and has problems when in use. In addition, the pot mouth is easier to collide with during daily use.

To this end, the present invention provides an inner pot, a cooking appliance, and a method for manufacturing an inner pot to at least partially solve the problems in the prior art.

Disclosure of Invention

In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the invention 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 solve the above-mentioned problems at least in part, according to a first aspect of the present invention, there is provided an inner pan whose main body is a revolution geometry formed by a pan wall around a central axis and having an upper opening and an inner cavity, the pan wall including a bottom wall and a side wall connected to the bottom wall, an upper portion of the side wall being a pan opening portion surrounding the upper opening, an outer peripheral side of the pan opening portion being provided with a support ring provided with an opening in a circumferential direction, a wrapping layer being provided outside the support ring, the support ring being wrapped by the wrapping layer and connected to the pan opening portion.

According to the inner pot, the inner pot body can be made of a material with strong plasticity through stretching or die casting, the supporting ring made of a high-density material and/or a high-energy-storage material is arranged at the pot opening, the outermost side of the inner pot body is covered with a wear-resistant and/or corrosion-resistant and/or attractive-degree material serving as a wrapping layer, the supporting ring is sealed at the outer side of the pot opening, so that the opening edge of the inner pot is formed, the opening edge of the inner pot is wide in the radial direction, sealing and grasping are facilitated, and the wall thickness is also thick and heavy in a vertical section of height. The support ring circumference is equipped with the opening, and this piece is not complete cyclic annular promptly, when the parcel layer with its parcel connect to on the pot oral area, the setting opening on the support ring makes the parcel layer with its parcel extremely the realization of the operation of pot oral area is more convenient to this scheme makes the support ring have certain expansibility and retractility, makes its size fluctuation that can cooperate inlayer lateral wall and outer parcel layer, and this scheme can improve the quality of borduring, reduces the bad of borduring.

Optionally, the pan part comprises a first wall formed by the upper part of the side wall, the support ring arranged around the first wall and a wrapping layer surrounding the support ring, and the first wall is provided with a thickening part protruding outwards along the radial direction of the inner pan relative to the other part of the side wall.

According to the inner pot, the thickened part is arranged on the first wall positioned at the pot opening, and the supporting ring and the wrapping layer are arranged outside the first wall, so that the thickness and the stability of the pot opening can be increased, the inner pot is prevented from being damaged due to collision, and the inner pot is firmer and more reliable. And the mouth edge part of the inner pot designed by the design is wider in the radial direction, is convenient for sealing and grasping, and the wall thickness is also heavy and thick in a vertical section of height.

Optionally, the wrapping layer includes a wrapping body and a first end wall disposed at an upper end of the wrapping body and a second end wall disposed at a lower end of the wrapping body, the first end wall and the second end wall extending inward along a radial direction of the wrapping layer, the first end wall at least covering an upper edge of the support ring, and the second end wall at least covering a lower edge of the support ring.

This scheme is through making the parcel layer including setting up at the first end wall of parcel main part upper end and setting up at the second end wall of parcel main part lower extreme, and first end wall covers the top edge of holding ring at least, and the second end wall covers the bottom edge of holding ring at least, can improve the leakproofness of pot mouth to a certain extent, prevents that dust, water etc. from getting into the inside of pot mouth.

Optionally, the thickness of the support ring is greater than the thickness of the wrapping layer. The scheme can further increase the thickness and the stability of the pot mouth.

Optionally, the opening angle of the support ring is 5-10 degrees. According to the scheme, the support ring can further have certain expansibility and retractility, so that the support ring can be matched with the size fluctuation of the side wall of the inner layer and the outer wrapping layer, the quality of wrapping can be further improved, and poor wrapping is reduced.

Optionally, the support ring is of an iron ring structure or a copper ring structure. According to the scheme, the supporting ring is made of iron, copper and other materials, so that the supporting ring has higher density, the thick sense of the pot mouth is increased, and the supporting ring also has a good heat storage effect.

Optionally, the wrapping is configured as a closed loop structure and/or the wrapping is a stainless steel ring. The scheme can prevent dust, water and other external sundries from entering the inside of the pot mouth, and the stainless steel can also play a role in preventing rust, so that the pot is firmer and durable.

Optionally, the first end wall has an extension length greater than an extension length of the second end wall, the first end wall covering the support ring and an upper edge of the first wall, the second end wall covering the support ring and a lower edge of the thickening. The scheme makes the wrapping layer play a good role in protecting the mouth part of the inner pot, so that the thickness and stability of the mouth part of the pot can be further increased.

Optionally, the pan section further comprises a flange structure extending outwardly from the top end of the first wall in a radial direction of the inner pan. The scheme is convenient to manufacture and convenient for a user to take the inner pot.

Optionally, the extension length of the first end wall is equal to the extension length of the second end wall, the first end wall covers the upper edge of the support ring, the second end wall covers the lower edge of the support ring, and the support ring and the wrapping layer are abutted to the flanging structure below the flanging structure. The scheme makes the wrapping layer play a good role in protecting the mouth part of the inner pot, so that the thickness and stability of the mouth part of the pot can be further increased.

Optionally, the extension length of the first end wall and the second end wall is equal to the extension length of the flanging structure. The scheme can enable the structure of the pot mouth to be more compact and tidy.

Optionally, the lower edge of the thickening is disposed obliquely relative to the side wall. According to the scheme, the supporting ring and the wrapping layer can be pressed into the pot mouth of the inner pot from the lower part of the thickening part more easily, so that the inner pot is convenient to manufacture.

Optionally, the thickness of the supporting ring is 1-6 mm, and/or the thickness of the wrapping layer is 0.2-1.5 mm. The scheme can be more beneficial to processing and manufacturing, and the cost is reduced.

According to a second aspect of the present invention, there is provided a cooking appliance comprising:

the inner pot is arranged in the pot body; and

the cover body is arranged on the cooker body in an openable and closable manner, and a cooking space can be formed between the cover body and the inner cooker.

According to the cooking utensil disclosed by the invention, the inner pot body can be formed by stretching or die casting a material with stronger plasticity, the pot mouth is provided with the supporting ring made of high-density material and/or high-energy-storage material, the outermost side of the inner pot body is covered with the supporting ring made of wear-resistant and/or corrosion-resistant and/or high-aesthetic-degree material as a wrapping layer, and the supporting ring is sealed outside the pot mouth, so that the mouth edge part of the inner pot is formed, the mouth edge part of the inner pot is wider in the radial direction and is beneficial to sealing and grasping, and the wall thickness is also heavy and thick in a vertical section of height. The support ring circumference is equipped with the opening, and this piece is not complete cyclic annular promptly, when the parcel layer with its parcel connect to on the pot oral area, the setting opening on the support ring makes the parcel layer with its parcel extremely the realization of the operation of pot oral area is more convenient to this scheme makes the support ring have certain expansibility and retractility, makes its size fluctuation that can cooperate inlayer lateral wall and outer parcel layer, and this scheme can improve the quality of borduring, reduces the bad of borduring.

According to a third aspect of the present invention, there is provided a method for manufacturing an inner pan as described above, the method comprising:

a main body forming an inner pot;

forming an annular support ring such that the support ring is provided with an opening in a circumferential direction;

forming an annular wrapping layer, wherein the wrapping layer comprises a wrapping body, a first end wall arranged at the upper end of the wrapping body and a second end wall arranged at the lower end of the wrapping body, and the first end wall and the second end wall extend inwards along the radial direction of the wrapping layer;

wrapping the support ring in the wrapping layer; and

and assembling a wrapping layer wrapping the support ring to the pot mouth part, wherein the pot mouth part comprises a first wall formed by the upper parts of the side walls.

According to the manufacturing method of the inner pot, the inner pot main body, the supporting ring and the wrapping layer can be manufactured independently, for example, the inner pot main body, the supporting ring and the wrapping layer can be respectively entrusted to different manufacturers for manufacturing, and the manufacturing flexibility is improved. The manufacturing method can also improve the convenience of manufacturing and reduce the production cost. Finally, the thickness and the stability of the pot mouth can be increased, so that the inner pot is prevented from being damaged by collision, and the inner pot is firmer and more reliable. In addition, the support ring circumference is equipped with the opening, and this piece is not complete cyclic annular promptly, when the parcel layer with its parcel connect to on the pot oral area, the support ring set up the opening and make the parcel layer with its parcel to the realization of the operation of pot oral area is more convenient. And the scheme ensures that the support ring has certain expansibility and retractility, so that the support ring can be matched with the dimensional fluctuation of the side wall of the inner layer and the wrapping layer of the outer layer.

Optionally, the forming the annular wrapping layer includes:

folding the upper end of the wrapping layer to form the first end wall so that the first end wall extends approximately perpendicularly to the wrapping body; and

the lower end of the wrapping layer is folded to form the second end wall such that the second end wall extends at an angle to the wrapping body, the angle being less than 90 degrees.

This scheme on the one hand can be convenient for wrap up the holding ring in wherein accurately, on the other hand, through setting up the extension of angle with the parcel main part with the second end wall, can be more convenient with the parcel layer follow-up assembly to the first wall of interior pot.

Optionally, the first wall has a thickened portion protruding outwardly in a radial direction of the inner pan relative to other portions of the side wall, the fitting of the wrapping layer wrapped with the support ring to the pan mouth comprises:

fitting a wrapping layer wrapping the support ring to the first wall from a radially outer side of the first wall such that the first end wall covers the support ring and an upper edge of the first wall; and

the second end wall is folded over to extend generally perpendicular to the wrap body such that the second end wall covers the support ring and the lower edge of the thickening.

This scheme can be convenient for the assembly of parcel layer, can ensure sealed effect simultaneously.

Optionally, the pan section further comprises a flange structure extending outwardly from the top end of the first wall in a radial direction of the inner pan. The scheme is convenient to manufacture and convenient for a user to take the inner pot.

Optionally, the forming the annular wrapping layer includes:

folding the upper end of the wrapping layer to form the first end wall so that the first end wall extends approximately perpendicularly to the wrapping body; and

the lower end of the wrap is folded over to form the second end wall such that the second end wall extends generally perpendicular to the wrap body.

This solution can facilitate the precise packing of the support ring therein.

Optionally, the assembling the wrapping layer wrapped with the support ring to the pan mouth portion includes:

assembling a wrapping layer wrapped with the support ring from below the first wall to the first wall so that the wrapping layer abuts to the flanging structure below the flanging structure.

The scheme can facilitate the assembly of the wrapping layer, and simultaneously the structure of the pot mouth part is more compact and concise.

Optionally, the forming an annular support ring includes:

and (3) carrying out rolling treatment on the base material to be formed into the support ring, and leaving openings at two ends of the circular ring after the rolling treatment.

The proposal is more convenient to manufacture and process and has lower cost.

Optionally, the forming the annular wrapping layer includes:

and (3) carrying out rolling treatment on the base material to be formed with the wrapping layer, and welding the two ends of the circular ring after the rolling treatment.

The proposal is more convenient to manufacture and process and has lower cost.

Drawings

The following drawings are included to provide an understanding of the invention and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the invention and their description to explain the principles of the invention.

In the accompanying drawings:

FIG. 1 is a schematic cross-sectional view of an inner pan according to a preferred embodiment of the present invention;

FIG. 2 is a schematic perspective view of a support ring of the inner pan shown in FIG. 1;

FIG. 3 is a schematic perspective view of the wrapping layer of the inner pan shown in FIG. 1;

FIG. 4 is an enlarged schematic view of a portion A of FIG. 1;

FIG. 5 is a schematic view of a molding step for manufacturing the mouth of the inner pan shown in FIG. 4;

FIG. 6 is an enlarged partial schematic view of a mouth portion of an inner pan according to another preferred embodiment of the present invention; and

fig. 7 is a schematic view of a molding step for manufacturing the mouth of the inner pot shown in fig. 6.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that embodiments of the invention 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 embodiments of the invention.

In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the present invention. It will be apparent that embodiments of the invention may be practiced without limitation to the specific details that are set forth by those skilled in the art. It should be noted that ordinal words such as "first" and "second" cited in the present invention 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". The terms "upper", "lower", "front", "rear", "left", "right" and the like are used herein for illustrative purposes only and are not limiting.

The invention discloses an inner pot 100 and a cooking appliance. The cooking appliance according to the present invention may be an electric rice cooker, an electric pressure cooker or other electric heating appliances, and may have various functions of cooking porridge or the like in addition to the function of cooking rice.

The cooking appliance includes a pot body (not shown) and a cover body (not shown). The pot body is basically in a round-corner cuboid shape and is provided with a cylindrical inner pot containing part. The inner pot 100 may be configured to be freely placed in or taken out of the inner pot receiving part to facilitate cleaning of the inner pot 100. The inner pot 100 is made of a metal material for holding a material to be heated, such as rice, soup, etc. The cover can be covered on the pot body to form a cooking space between the cover and the inner pot 100.

Embodiment 1

Hereinafter, the inner pan 100 according to the first preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1, an inner pan 100 according to a preferred embodiment of the present invention includes a bottom wall 110 and a side wall 120 connected to the bottom wall 110, and a body of the inner pan 100 is a revolution geometry formed by the pan wall around a central axis and having an upper opening and an inner cavity. The inner pot 100 may be made of a material with high plasticity through stretching or die casting, and the inner pot 100 may be made of aluminum or aluminum alloy.

The bottom wall 110 forms a placement portion. In the embodiment shown in fig. 1, the bottom wall 110 is constructed as a straight line segment extending in the radial direction of the inner pan 100 so as to be smoothly placed after the inner pan 100 is taken out. It will be appreciated that in other embodiments not shown, the bottom wall 110 may also be configured to be slightly recessed upwardly at its center.

The inner pot 100 includes a pot portion 130 formed of an upper portion of the sidewall 120, and the pot portion 130 forms an upper opening. As shown in fig. 2 to 4, the mouth 130 includes a first wall 131, a support ring 132, and a wrapping layer 133 in this order from the inside to the outside in the radial direction of the inner pot 100. The first wall 131 is a vertical wall extending in the height direction of the inner pan 100, which is a portion of the side wall 120. Referring to fig. 4, the first wall 131 has a thickened portion 131a protruding outwardly in the radial direction of the inner pan 100 with respect to the other portion of the side wall 120, that is, the thickness of the first wall 131 is thicker than the thickness of the other portion of the side wall 120. A support ring 132 is disposed around the first wall 131 and a wrapping 133 is disposed around the support ring 132. The first wall 131, the support ring 132 and the wrapping layer 133 are constructed in a structure independent from each other.

As shown in fig. 2 and 4, the support ring 132 is configured in a ring-shaped structure and is sleeved outside the first wall 131. The height of the support ring 132 in the height direction of the inner pot 100 is the same as the height of the first wall 131 in the same direction so that the support ring 132 can cover just corresponding to the first wall 131. Preferably, the support ring 132 is made of a high-density, high-heat-storage material such as iron or copper, that is, the support ring 132 is constructed in an iron ring structure or a copper ring structure. According to the scheme, the supporting ring 132 is made of iron, copper and other materials, so that the supporting ring 132 has higher density, the thick feel of the pot mouth 130 can be increased, the supporting ring 132 has good heat storage effect, and further the loss of heat in the inner pot 100 can be reduced.

The support ring 132 is configured as an unclosed annular structure, that is, the support ring 132 is provided with openings 132a in the circumferential direction. The above-mentioned scheme makes the support ring 132 have a certain expansibility and retractility, so that it is more suitable for the size fluctuation of the side wall 120 of the inner layer and the wrapping layer 133 of the outer layer, and the scheme can improve the quality of the wrapping and reduce the bad wrapping. Further preferably, the opening angle of the support ring 132 is 5 to 10 degrees. For example, the opening angle of the support ring 132 may be set to 6 degrees, 8 degrees, 10 degrees, etc. according to actual needs by those skilled in the art.

As shown in fig. 3 and 4, the wrapping layer 133 is constructed in a closed ring-shaped structure, which wraps around the outside of the support ring 132 and the first wall 131 of the inner pot 100. In this embodiment, the wrapping layer 133 is configured as a closed structure, so that external impurities such as dust and water can be prevented from entering the inside of the pan opening 130. Preferably, the wrapping layer 133 is made of a material having wear resistance and/or corrosion resistance and/or aesthetic appearance, for example, the wrapping layer 133 may be made of stainless steel or stainless iron material, so as to prevent the pot mouth 130 from being rusted, so that the inner pot 100 is stronger and durable. The stainless steel or stainless iron ring may also be reworked as desired by a person skilled in the art, for example by ion titanizing and/or spraying a clear protective paint or the like.

Preferably, as shown in fig. 4, the wrapping layer 133 includes a wrapping body 133a and a first end wall 133b disposed at an upper end of the wrapping body 133a and a second end wall 133c disposed at a lower end of the wrapping body 133 a. The wrapping body 133a extends along the height direction of the inner pot, the wrapping body 133a directly covers the outer side of the support ring 132, and the height of the wrapping body 133a is the same as the height of the support ring 132. The first end wall 133b and the second end wall 133c extend inward in the radial direction of the wrapping layer 133, that is, the first end wall 133b and the second end wall 133c are arranged substantially perpendicular to the wrapping body 133 a. The first end wall 133b has an extension length greater than that of the second end wall 133c in the radial direction of the inner pan 100. The first end wall 133b covers the support ring 132 and the upper edge of the first wall 131, i.e., the uppermost end of the mouth 130. Preferably, the radial dimension of the first end wall 133b is the sum of the thicknesses of the support ring 132 and the first wall 131. The second end wall 133c covers the support ring 132 and the lower edge of the thickened portion 131 a. Preferably, the radial dimension of the second end wall 133c is the sum of the thicknesses of the support ring 132 and the thickened portion 131 a. This solution allows the wrapping layer 133 to provide a good sealing and protection of the mouth of the inner pot 100, thus further increasing the thickness and stability of the pot mouth 130.

Preferably, a chamfer is provided between the wrapping body 133a and the first end wall 133b, and a chamfer is also provided between the wrapping body 133a and the second end wall 133c. The scheme can make the structure of the pan opening 130 more round and smooth, thereby improving the comfort level of the user.

Preferably, the thickness of the support ring 132 is greater than the thickness of the wrapping layer 133. Further preferably, the thickness of the support ring 132 is 1 to 6mm, and for example, a person skilled in the art may set the thickness of the support ring 132 to 2mm, 4mm, 6mm, etc. according to actual needs. This solution is more convenient for the manufacture and assembly of the support ring 132 and can achieve a good heat accumulation and weight gain effect. The thickness of the wrapping layer 133 is 0.2 to 1.5mm, and more preferably 0.3 to 0.8mm. This approach may facilitate manufacturing of the wrapping layer 133 and may reduce costs.

According to the inner pot, the inner pot body can be made of a material with strong plasticity through stretching or die casting, the supporting ring made of a high-density material and/or a high-energy-storage material is arranged at the pot opening, the outermost side of the inner pot body is covered with a wear-resistant and/or corrosion-resistant and/or attractive-degree material serving as a wrapping layer, the supporting ring is sealed at the outer side of the pot opening, so that the opening edge of the inner pot is formed, the opening edge of the inner pot is wide in the radial direction, sealing and grasping are facilitated, and the wall thickness is also thick and heavy in a vertical section of height. The support ring circumference is equipped with the opening, and this piece is not complete cyclic annular promptly, when the parcel layer with its parcel connect to on the pot oral area, the setting opening on the support ring makes the parcel layer with its parcel extremely the realization of the operation of pot oral area is more convenient to this scheme makes the support ring have certain expansibility and retractility, makes its size fluctuation that can cooperate inlayer lateral wall and outer parcel layer, and this scheme can improve the quality of borduring, reduces the bad of borduring.

A method of manufacturing the inner pot 100 for a cooking appliance according to the present invention will be briefly described below. Wherein the first wall 131, the support ring 132 and the wrapping layer 133 of the inner pot 100 can be manufactured separately and then assembled together. Wherein the manufacture of the first wall 131, i.e. the manufacture of the inner pan 100, i.e. the first wall 131 is naturally manufactured after the manufacture of the inner pan 100 is completed.

First, the manufacture of the inner pan 100 will be briefly described. As described above, the inner pot 100 may be made of aluminum or an aluminum alloy material. The inner pan 100 having the first wall 131 may be initially formed during the manufacturing process using either stretch forming or cast forming. The step of the pan mouth 130 (i.e. the connection between the thickened portion 131a and the other portion of the side wall 120) may be machined as required to eliminate the subsequent poor hemming caused by product deformation, and improve the subsequent hemming qualification rate, so as to improve the hemming and sealing effects.

For the production of the support ring 132, a rolling process may be performed using a strip material base material such as iron, copper, or the like, and thereafter, an anti-rust process may be performed. Reference herein to "rounding" is to a forming process in which strips of iron, copper, etc. are bent into a nearly closed circular ring. The thickness of the strip is preferably 1-3 mm to facilitate rounding and assembly. After the rolling treatment, the two ends of the circular ring are not required to be welded, and a certain opening is reserved, so that the supporting ring 132 is more adaptive to the size fluctuation of the inner side wall 120 and the outer wrapping layer 133, and the quality of wrapping can be improved, and bad wrapping is reduced. In order to improve the strength of the support ring 132 and facilitate the rolling and assembling of the support ring 132, two strips of 1-3 mm may be stacked for use in the actual manufacturing process.

For the manufacture of the wrapping layer 133, stainless steel or stainless iron material may be used. In a preferred embodiment, the sheet material may be stretch formed to form a preliminary wrapping layer 133, which may be subsequently polished (sanded) as desired. In another preferred embodiment, the rolling process may be performed using a bar of stainless steel or stainless iron, and both ends of the ring may be subjected to a welding process and a polishing (sanding) process after the rolling process. The second embodiment is preferred, and cost can be reduced. Wherein the welding process can be laser welding or argon arc welding. After the wrapping layer 133 is formed initially, one end of the wrapping layer 133 may be turned over to form a first end wall 133b. In order to facilitate the subsequent assembly step, as shown in fig. 5, the second end wall 133c of the wrapping layer 133 at the lower end may be pre-turned, that is, the second end wall 133c may be bent to be perpendicular to the wrapping body 133a, and may be bent to form a certain inclination angle with the wrapping body 133a, for example, about 45 degrees, and then bent into place when the subsequent assembly is performed on the inner pot 100.

Finally, the above-mentioned molded layers are assembled, with continued reference to fig. 5, the molded support ring 132 is placed in advance in the molded wrapping layer 133 so as to be closely attached to the wrapping body 133a of the wrapping layer 133, the support ring 132 and the wrapping layer 133 are pressed into the first wall 131 of the inner pot 100 as a whole from the radially outer side of the pot opening 130, and finally, the second end wall 133c of the wrapping layer 133 at the lower end is subjected to flanging treatment so as to form an extension substantially perpendicular to the wrapping body 133a, and the step, that is, the lower edges of the support ring 132 and the thickening portion 131a, is caught.

It should be appreciated that the above embodiment is only one embodiment of manufacturing the inner pot 100, wherein the individual steps are not necessary, and one or more of the steps may be added or subtracted as desired; and the sequence of each step is not necessarily fixed, and the sequence of operation can be adjusted according to the requirement.

Embodiment 2

Hereinafter, an inner pan according to a second embodiment of the present invention will be described with reference to the accompanying drawings. The inner pot according to the second embodiment has substantially the same construction as the inner pot according to the first embodiment except for the structure of the pot mouth, and thus, only the structure of the pot mouth 230 will be described below for the sake of brevity.

As shown in fig. 6, in the present embodiment, the mouth 230 further includes a burring structure 234 extending outwardly from the top end of the first wall 231 in the radial direction of the inner pot. The thickness of the flange structures 234 may be the same as the thickness of the first wall 231.

In the present embodiment, the extension length of the first end wall 233b of the wrapping 233 in the radial direction of the inner pan is equal to the extension length of the second end wall 233c in the above-described direction. The first end wall 233b covers the upper edge of the support ring 232 and the second end wall 233c covers the lower edge of the support ring 232 such that the cross section of the wrapping 233 and the support ring 232 assumes a rectangular configuration, as shown in fig. 6.

Preferably, the first end wall 233b and the second end wall 233c have an extension equal to the extension of the flange structure 234. The support collar 232 and the wrapping 233 abut the flange structure 234 below the flange structure 234. This solution can make the structure of the mouth 230 more compact and tidy, and can increase the thickness and stability of the mouth 230.

Preferably, the lower edge of the thickening 231a is disposed obliquely with respect to the side wall 220. This arrangement can facilitate the bottom-up assembly of the support ring 232 and the wrapping 233 when assembled to the finish 230.

Specifically, as shown in fig. 7, in the assembly process, the formed support ring 232 is placed in advance into the formed wrapping layer 233 so as to be placed closely to the wrapping body 233a of the wrapping layer 233. Unlike the above-described embodiment, in the present embodiment, both the first end wall 233b and the second end wall 233c of the wrap 233 have been bent to extend substantially perpendicular to the wrap body 233a prior to assembly to the inner pan.

For the wrapping layer 233 wrapped with the support ring 232, it can be pressed into the first wall 231 of the inner pan and the flange structure 234 as a whole from below the pan mouth 230 from below to above. Preferably, in the assembled state, the support ring 232 is in an expanded and deformed state, so that it can be closely attached to the first wall 231 and the outer wrapping layer 233 of the inner pan, and the support ring 232 and the wrapping layer 233 are prevented from falling off from the side wall 220 and the flange structure 234 of the inner pan 100.

It should be appreciated that the above embodiment is only one embodiment of the manufacturing of the inner pot, wherein the individual steps are not necessary, and one or more of the steps may be added or subtracted as desired; and the sequence of each step is not necessarily fixed, and the sequence of operation can be adjusted according to the requirement.

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 invention pertains. The terminology used herein is for the purpose of describing particular implementations only and is not intended to be limiting of the invention. Terms such as "disposed" or the like as used herein may refer to either one element being directly attached to another element or one element being attached to another element through an intermediate member. 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 invention has been described in terms of the above embodiments, but it should be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the embodiments described. Those skilled in the art will appreciate that many variations and modifications are possible in light of the teachings of the invention, which variations and modifications are within the scope of the invention as claimed.

Claims (22)

1. The utility model provides an interior pot, its characterized in that, the main part of interior pot (100) is the gyration geometry that has upper portion opening and inner chamber that forms by the pot wall around the central axis, the pot wall include diapire (110) and with lateral wall (120) that the diapire is connected, the upper portion of lateral wall is around constituteing upper portion open-ended pot mouth (130), the periphery side of pot mouth is provided with support ring (132) that are equipped with opening (132 a) in the circumference the outside of support ring is provided with parcel layer (133), the support ring is wrapped up by the parcel layer and is connected to the pot mouth.

2. The inner pan according to claim 1, characterized in that the pan mouth (130) comprises a first wall (131) constituted by an upper portion of the side wall (120), the support ring (132) arranged around the first wall (131) and a wrapping layer (133) around the support ring, the first wall (131) having a thickening (131 a) protruding outwards in a radial direction of the inner pan with respect to the other portion of the side wall (120).

3. The inner pan according to claim 2, wherein the wrapping layer (133) comprises a wrapping body (133 a) and a first end wall (133 b) arranged at an upper end of the wrapping body (133 a) and a second end wall (133 c) arranged at a lower end of the wrapping body (133 a), the first end wall (133 b) and the second end wall (133 c) extending inwardly in a radial direction of the wrapping layer (133), the first end wall (133 b) covering at least an upper edge of the support ring (132), and the second end wall (133 c) covering at least a lower edge of the support ring (132).

4. An inner pan according to any of the claims 1-3, characterized in that the thickness of the support ring (132) is larger than the thickness of the wrapping layer (133).

5. An inner pan according to any of the claims 1-3, characterized in that the opening angle of the support ring (132) is 5-10 degrees.

6. An inner pan according to any of the claims 1-3, characterized in that the support ring (132) is of an iron or copper ring structure.

7. An inner pan according to any of claims 1-3, characterized in that the wrapping (133) is configured as a closed ring-like structure and/or that the wrapping (133) is a stainless steel ring.

8. An inner pan as claimed in claim 3, wherein the first end wall has a greater extension than the second end wall, the first end wall covering the support rim and the upper edge of the first wall, and the second end wall covering the support rim and the lower edge of the thickening.

9. An inner pan according to claim 3, characterized in that the pan section further comprises a flange structure (234) extending outwardly from the top end of the first wall in the radial direction of the inner pan.

10. The inner pan of claim 9, wherein the first end wall has an extension equal to an extension of the second end wall, the first end wall covering an upper edge of the support rim, the second end wall covering a lower edge of the support rim, the support rim and the wrapping layer abutting the flange structure below the flange structure.

11. The inner pan of claim 10, wherein the first end wall and the second end wall have an extension equal to an extension of the flange structure.

12. Inner pan according to claim 9, characterized in that the lower edge of the thickening is arranged obliquely with respect to the side wall.

13. Inner pan according to claim 1, characterized in that the thickness of the support ring is 1-6 mm and/or the thickness of the wrapping layer is 0.2-1.5 mm.

14. A cooking appliance, comprising:

a pot body in which the inner pot according to any one of claims 1 to 13 is provided; and

the cover body is arranged on the cooker body in an openable and closable manner, and a cooking space can be formed between the cover body and the inner cooker.

15. A method for manufacturing an inner pan as claimed in any of the claims 1-13, characterized in that the method comprises:

a main body forming an inner pot;

forming an annular support ring such that the support ring is provided with an opening in a circumferential direction;

forming an annular wrapping layer, wherein the wrapping layer comprises a wrapping body, a first end wall arranged at the upper end of the wrapping body and a second end wall arranged at the lower end of the wrapping body, and the first end wall and the second end wall extend inwards along the radial direction of the wrapping layer;

wrapping the support ring in the wrapping layer; and

and assembling a wrapping layer wrapping the support ring to the pot mouth part, wherein the pot mouth part comprises a first wall formed by the upper parts of the side walls.

16. The method of claim 15, wherein forming the annular wrapping layer comprises:

folding the upper end of the wrapping layer to form the first end wall so that the first end wall extends approximately perpendicularly to the wrapping body; and

the lower end of the wrapping layer is folded to form the second end wall such that the second end wall extends at an angle to the wrapping body, the angle being less than 90 degrees.

17. The method according to claim 16, wherein the first wall (131) has a thickening (131 a) protruding outwards in a radial direction of the inner pan with respect to the other parts of the side wall (120), the fitting of the wrapping layer wrapped with the support ring to the pan mouth comprising:

fitting a wrapping layer wrapping the support ring to the first wall from a radially outer side of the first wall such that the first end wall covers the support ring and an upper edge of the first wall; and

the second end wall is folded over to extend generally perpendicular to the wrap body such that the second end wall covers the support ring and the lower edge of the thickening.

18. The method of claim 15, wherein the finish portion further comprises a flange structure extending outwardly from the top end of the first wall in a radial direction of the inner pan.

19. The method of claim 18, wherein forming the annular wrapping layer comprises:

folding the upper end of the wrapping layer to form the first end wall so that the first end wall extends approximately perpendicularly to the wrapping body; and

the lower end of the wrap is folded over to form the second end wall such that the second end wall extends generally perpendicular to the wrap body.

20. The method of claim 19, wherein said fitting a wrapping layer wrapped with the support ring to the pan mouth comprises:

assembling a wrapping layer wrapped with the support ring from below the first wall to the first wall so that the wrapping layer abuts to the flanging structure below the flanging structure.

21. The method of claim 15, wherein forming the annular support ring comprises:

and (3) carrying out rolling treatment on the base material to be formed into the support ring, and leaving openings at two ends of the circular ring after the rolling treatment.

22. The method of claim 15, wherein forming the annular wrapping layer comprises:

and (3) carrying out rolling treatment on the base material to be formed with the wrapping layer, and welding the two ends of the circular ring after the rolling treatment.

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