Bottom-covered pot

Abstract

The utility model relates to the technical field of cookware, and provides a bottom-covered pot which comprises a pot body, a bottom-covered piece is attached to the outer surface of the pot bottom of the pot body, a plurality of connecting ports penetrating through the bottom-covered piece are formed in the surface of the bottom-covered piece, and unit piece areas are formed among the connecting ports; the outer surface of the pot bottom is provided with a protruding part corresponding to the connecting opening, and the protruding part is embedded into the connecting opening, so that the clad sheet is fixed to the pot bottom. According to the application, the bottom-clad sheet is divided into the plurality of unit sheet areas through the plurality of connecting ports, so that the bottom-clad sheet does not deform as a whole during heating; the pot bottom and the clad sheet are stamped, so that a protruding part formed on the outer surface of the pot bottom is embedded into the connecting opening, the clad sheet is fixed to the pot bottom, the pot bottom almost consistent with aluminum alloy thermal expansion is formed, and therefore pot bottom protrusion caused by thermal expansion difference between the clad sheet and the aluminum alloy pot bottom is effectively reduced; therefore, the oil is not easy to flow to the edge of the pot bottom during heating, and the purpose of improving the user experience is finally achieved.

Description

Technical Field

[0001] The present application relates to the technical field of cookware, and in particular to a covered bottom cookware. Background Art

[0002] The aluminum pots commonly seen on the market, including various frying pans and woks, have flat bottoms and large diameters. In order to use the pot on an induction cooker, a magnetically conductive stainless steel bottom sheet is generally added to the bottom of the pot to form a composite bottom of aluminum alloy and stainless steel bottom sheet. In order to ensure that the pot can be placed stably on the induction cooker panel, the bottom of the pot needs to be pressed out of cold deflection, that is, a gap is reserved between the middle of the bottom of the pot and the induction cooker. Due to the existence of cold deflection of the bottom of the pot, the bottom plane of the pot will bulge inward when heated.

[0003] However, due to the difference in thermal expansion coefficients between aluminum alloy and stainless steel bottom sheets, the bottom of the pot bulges inwards, sometimes even exceeding 5mm, making the bottom of the pot too uneven, seriously affecting the user experience of the pot. For example, when the user adds a small amount of cooking oil to the pot, the oil all flows to the bottom edge of the pot instead of staying in the middle of the bottom of the pot, causing inconvenience and reducing the user experience. Utility Model Content

[0004] In order to solve or at least partially solve the above-mentioned technical problem that the bottom of the pot is prone to bulge when heated, the present application provides a covered bottom pot, comprising:

[0005] Pot body;

[0006] A bottom covering sheet is attached to the outer surface of the bottom of the pot body;

[0007] Wherein, the bottom cover film has a plurality of connection ports penetrating the bottom cover film, and a unit area is formed between the plurality of connection ports;

[0008] The outer surface of the pot bottom has a plurality of protruding parts corresponding to the connecting opening, and the protruding parts are embedded in the connecting opening, so as to fix the bottom covering sheet on the pot bottom.

[0009] Optionally, the connection ports are evenly distributed on the substrate cover to form a plurality of unit regions of the same size.

[0010] Optionally, the protruding portion is formed by punching a connection between the pot bottom and the bottom covering sheet.

[0011] Optionally, an end surface of the protruding portion is flush with a surface of the unit cell area.

[0012] Optionally, the connection port is a connection hole, and the ratio of the spacing between adjacent connection holes to the width of the connection hole is between 1-2.

[0013] Optionally, the connection port is a notch opened at the edge of the bottom cover film, and the notch extends from the edge of the bottom cover film to the center.

[0014] Optionally, the connection port includes a connection hole provided on the surface of the bottom cover film and an edge port provided on the edge of the bottom cover film.

[0015] Optionally, the connecting hole is one or more of a square hole, a circular hole or an elliptical hole.

[0016] Optionally, the bottom cover sheet is provided with a central hole, the width of the central hole is greater than the connecting hole, and the central hole is one of a square hole, a circular hole or an elliptical hole.

[0017] Optionally, the pot bottom is a circular aluminum alloy flat pot bottom, the bottom covering sheet is a circular stainless steel magnetic bottom covering sheet, and the diameter of the bottom covering sheet is less than or equal to the diameter of the pot bottom.

[0018] Compared with the pots in the prior art, the covered pot provided in the present embodiment has a plurality of connection ports penetrating the bottom covering sheet on the surface of the bottom covering sheet, and unit areas of the bottom covering sheet are formed between the connection ports, thereby dividing the bottom covering sheet into many small areas, so that the bottom covering sheet will not deform as a whole when heated; at the same time, the outer surface of the pot bottom is stamped with the bottom covering sheet, so that the outer surface of the pot bottom forms a protruding portion corresponding to the connection port, and the protruding portion is embedded in the connection port, so that the bottom covering sheet is fixed to the pot bottom, forming a pot bottom that is almost consistent with the thermal expansion of the aluminum alloy, thereby effectively reducing the bulge of the pot bottom caused by the difference in thermal expansion between the bottom covering sheet and the aluminum alloy pot bottom, thereby making it difficult for oil to flow to the edge of the pot bottom when heated, and ultimately achieving the purpose of improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the implementation of the present application, the following is a brief introduction to the relevant drawings. It is understood that the drawings described below are only used to illustrate some implementations of the present application, and those skilled in the art can also obtain many other technical features and connection relationships not mentioned in this document based on these drawings.

[0020] Figure 1 A three-dimensional schematic diagram of a bottom-covered pot provided in an embodiment of the present application;

[0021] Figure 2 A schematic diagram of the bottom of a bottom-covered pot provided in an embodiment of the present application;

[0022] Figure 3 for Figure 2 A partial enlarged schematic diagram of area A in the middle.

[0023] 10. Pot body; 11. Pot bottom; 111. Protruding part; 20. Covering sheet; 201. Connecting hole; 202. Unit sheet area; 203. Edge opening; 204. Center hole; 30. Handle. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings in the embodiments of the present application.

[0025] First embodiment

[0026] In the first embodiment of the present application, a bottom-covered pan is provided, specifically a pan capable of reducing thermal deflection, see Figure 1-Figure 3 As shown, the cookware includes a pot body 10 and a handle 30 arranged on the side of the pot body 10. The bottom of the pot body 10 forms a pot bottom 11. A layer of bottom covering sheet 20 is also provided at the bottom of the pot bottom 11. The bottom covering sheet 20 is attached to the outer surface of the pot bottom 11. The bottom covering sheet 20 is a magnetic conductive material, so that the cookware can be used on an induction cooker.

[0027] In this embodiment, the surface of the bottom cover film 20 has a plurality of connection ports penetrating the bottom cover film 20 , and the plurality of connection ports divide the bottom cover film 20 into a plurality of unit regions 202 .

[0028] In this embodiment, Figure 3 As shown, the connection port is a connection hole 201 that penetrates the bottom cover film 20 , that is, a plurality of connection holes 201 are opened in the bottom cover film 20 , so that the bottom cover film 20 between the connection holes 201 forms a unit cell area 202 .

[0029] At the same time, a protruding portion 111 corresponding to the connecting hole 201 is provided on the outer surface of the pot bottom 11, so that when the pot bottom 11 abuts against the bottom covering sheet 20, the protruding portion 111 can be embedded in the connecting hole 201, thereby firmly fixing the bottom covering sheet 20 on the lower surface of the pot bottom 11.

[0030] It is worth mentioning that the pot bottom 11 and the bottom cover 20 in this embodiment are made of different materials, and the hardness of the pot bottom 11 is smaller than that of the bottom cover 20 , so that the protruding portion 111 can be formed by punching the connecting hole 201 between the pot bottom 11 and the bottom cover 20 .

[0031] Specifically, the pot bottom 11 and the bottom cover 20 are first punched, and the position on the surface of the pot bottom 11 corresponding to the connection hole 201 is punched and embedded into the connection hole 201 to form a protruding portion 111, so that the protruding portion 111 can be tightly connected to the connection hole 201, thereby firmly fixing the bottom cover 20 on the lower surface of the pot bottom 11.

[0032] In this embodiment, the pot bottom 11 is preferably made of an aluminum alloy pot bottom, and the bottom covering sheet 20 is made of a stainless steel sheet. The pot bottom 11 and the bottom covering sheet 20 have different thermal deflections, that is, the pot bottom 11 and the bottom covering sheet 20 have different thermal expansion coefficients. In this way, the two are connected in the above-mentioned connection manner, and the multiple connection holes 201 on the bottom covering sheet 20 divide the bottom covering sheet 20 into many unit areas 202, so that the bottom covering sheet 20 will not deform as a whole when heated; at the same time, the protruding parts 111 formed by stamping are embedded in the connection holes 201, so as to fix the bottom covering sheet 20 to the pot bottom 11, forming a pot bottom that is almost consistent with the thermal expansion of the aluminum alloy, thereby reducing the pot bottom bulge caused by the difference in thermal expansion between the stainless steel bottom covering sheet 20 and the aluminum alloy pot bottom 11, and then making it difficult for the oil to flow to the edge of the pot bottom when heated, and finally achieving the purpose of improving the user experience.

[0033] Of course, in some embodiments, the pot bottom 11 is not limited to an aluminum alloy pot bottom, and the bottom cover 20 is not limited to a stainless steel sheet, and the pot bottom 11 and the bottom cover 20 can be made of other different materials according to actual needs. Compared with traditional pots with bottom covers, the pot of the present application has better flatness when heated, which can effectively alleviate the problem of obvious bulges on the pot bottom when heated.

[0034] In one embodiment, the connection holes 201 are evenly distributed on the bottom cover 20, so that the size of each unit area 202 can be the same, thereby ensuring that each unit area 202 expands to the same extent when heated, which is beneficial to further improve the flatness of the bottom 11 when heated and avoid local bulges of the bottom due to the thermal expansion difference between the bottom 11 and the bottom cover 20.

[0035] In one embodiment, the protrusion 111 is completely embedded in the connection hole 201, so that the end surface of the protrusion 111 is flush with the surface of the unit area 202, which can ensure the flatness of the surface of the bottom 11 and the bottom cover 20, and further strengthen the connection strength between the bottom 11 and the bottom cover 20.

[0036] In this embodiment, in order to further ensure that each unit area 202 is not prone to thermal protrusion, certain restrictions are also imposed on the size relationship between the connection hole 201 and the unit area 202 .

[0037] In one embodiment, the ratio of the spacing between adjacent connection holes 201 to the width of the connection hole 201 is between 1-2, that is, the width of the unit area 202 is approximately 1-2 times the width of the connection hole 201, so that the unit area 202 and the connection hole 201 have approximately the same size.

[0038] For example, the width of the unit area 202 is 1:1 to the width of the connection hole 201, that is, the unit area 202 is equal to the connection hole 201 in size, so that each unit area 202 is divided into very small areas, and each area is connected to the connection hole 201 of the same size, so that each unit area 202 and the protruding part 111 in the connection hole 201 expand to the same extent when heated, further optimizing the situation of preventing obvious protrusions when the pot bottom 11 is heated. At the same time, the unit area 202 and the connection hole 201 are distributed in a size of 1:1, which can also evenly distribute the heat between the pot bottom 11 and the bottom cover 20, further improving the effect of suppressing protrusions caused by the difference in thermal expansion between the pot bottom 11 and the bottom cover 20.

[0039] In some embodiments, the ratio of the width of the unit area 202 to the width of the connection hole 201 is 2:1, and the connection hole 201 is smaller than the unit area 202. In this way, while ensuring the above-mentioned anti-bulge effect, the surface of the unit area 202 is increased to ensure the magnetic conductivity of the cover film 20.

[0040] In this embodiment, the shape of the connection hole 201 is not limited exclusively, and the connection hole 201 can be one or more of a square hole, a circular hole, or an elliptical hole.

[0041] Preferably, Figure 3 As shown, the connection hole 201 is a square hole, the four corners of which are chamfered, and the square holes are arranged in a rectangular array on the surface of the cover film 20. Correspondingly, the cross section of the protruding portion 111 is also a square with chamfers.

[0042] like Figure 2 As shown, in one embodiment, the bottom cover 20 is provided with a central hole 204, and the width of the central hole 204 is greater than the connecting hole 201, so that a product logo can be set in the central hole 204 according to production needs. As a preferred solution, the shape of the central hole 204 can be one of square, circular or elliptical.

[0043] Second embodiment

[0044] In the second embodiment of the present application, a covered bottom pot is provided. The overall structure of the pot is the same as that of the above embodiment. The difference is that the connection port in this embodiment is not a connection hole 201 opened on the surface of the bottom cover sheet 20, but a groove opened on the edge of the bottom cover sheet 20. The groove can be a non-closed opening and extends from the edge of the bottom cover sheet 20 to the center.

[0045] In this embodiment, the notches divide the base film 20 into a plurality of regions to form unit regions 202 . Preferably, the spacings between adjacent notches are equal to ensure that the sizes of the unit regions 202 are equal.

[0046] The bottom covering sheet 20 and the pot bottom 11 are stamped, and the protruding portion 111 of the pot bottom 11 is embedded in the groove, and the protruding portion 111 of the pot bottom 11 is flush with the surface of the bottom covering sheet 20 to ensure the flatness of the pot bottom.

[0047] In this embodiment, the notch extends from the edge to the center of the bottom cover film 20, so that the protruding portion 111 is evenly extended into the bottom cover film 20 to ensure that the protruding portion 111 can occupy a certain proportion of the bottom cover film 20, thereby achieving a better anti-heating protrusion effect.

[0048] In one embodiment, the width of the notch may be close to the width of the unit area 202 to ensure uniform distribution of the protruding portion 111 and the unit area 202 .

[0049] The shape of the notch is not limited in this embodiment, and the notch can be any shape extending from the edge to the center of the bottom cover film 20 .

[0050] In this embodiment, the connection hole 201 is replaced by a notch provided on the edge of the bottom cover film 20 , and all the advantages mentioned in the first embodiment are also possessed.

[0051] Third embodiment

[0052] In the third embodiment of the present application, a covered bottom pot is provided. The overall structure of the pot is the same as that of the first embodiment, except that the connection port in this embodiment includes a connection hole 201 and an edge port 203, that is, in addition to the connection hole 201 of the bottom cover sheet 20, an edge port 203 is also provided at the edge of the bottom cover sheet 20.

[0053] like Figure 3 As shown, the edge opening 203 is different from the notch in the embodiment. The edge opening 203 is only arranged at the edge of the cover film 20, and its size is close to the size of the connecting hole 201. The edge openings 203 are arranged at equal intervals, and the spacing between the edge openings 203 is almost equal to the spacing between the connecting holes 201.

[0054] In one embodiment, the edge opening 203 may be a truncated portion of the connecting hole 201 .

[0055] The edge opening 203 of this embodiment plays the same role as the connecting hole 201, and mainly acts on the edge of the bottom cover 20, so as to ensure that the connection between the edge of the bottom cover 20 and the pot bottom 11 is more secure. Meanwhile, the protruding portion 111 is embedded in the edge opening 203, so as to ensure that the edge of the pot bottom 11 is not easily raised during heating.

[0056] This embodiment can have all the advantages mentioned in the first embodiment through the combination of the connecting hole 201 and the edge opening 203 .

[0057] It should be noted that the covered bottom pan mentioned in the present application can be a flat pan, the bottom 11 of the pan is a flat bottom, the bottom covering sheet 20 is a flat plate structure, the bottom 11 of the pan and the bottom covering sheet 20 are connected by embedding the connecting port and the protruding part 111, which effectively prevents the heating bulge of the flat pan.

[0058] In one embodiment, the pot bottom 11 and the bottom covering sheet 20 are circular, and the diameter of the bottom covering sheet 20 is less than or equal to the diameter of the pot bottom 11 .

[0059] In order to ensure good contact between the bottom cover sheet 20 and the induction cooker, the bottom cover sheet 20 may protrude from the surface of the pot bottom 11 as a whole.

[0060] However, the covered bottom pan mentioned in the present application is not limited to a flat pan. The bottom 11 of the pot can be a traditional curved bottom, and the bottom covering sheet 20 is in a curved shape and is attached to the bottom 11 of the pot. It also has the function of preventing uneven heating protrusions caused by different thermal expansion coefficients between the bottom 11 and the bottom covering sheet 20, thereby ensuring the consistency of heating deformation of the bottom 11 and the bottom covering sheet 20.

[0061] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A bottom-covered pot, comprising: Pot body (10); A bottom covering sheet (20) is attached to the outer surface of the bottom (11) of the pot body (10); The invention is characterized in that the bottom cover film (20) has a plurality of connection ports penetrating the bottom cover film (20), and a unit cell area (202) is formed between the plurality of connection ports; The outer surface of the pot bottom (11) has a plurality of protruding parts (111) corresponding to the connecting port, and the protruding parts (111) are embedded in the connecting port, thereby fixing the bottom covering sheet (20) to the pot bottom (11).

2. The bottom-covered pot according to claim 1, characterized in that: The connection ports are evenly distributed on the base film (20) to form a plurality of unit regions (202) of the same size.

3. The bottom-covered pot according to claim 2, characterized in that: The protruding portion (111) is formed by punching the connection between the pot bottom (11) and the bottom covering sheet (20).

4. The bottom-covered pot according to claim 3, characterized in that: The end surface of the protruding portion (111) is flush with the surface of the unit cell area (202).

5. The bottom-covered pan according to any one of claims 1 to 4, characterized in that: The connection port is a connection hole (201), and the ratio of the spacing between adjacent connection holes (201) to the width of the connection hole (201) is between 1 and 2.

6. The bottom-covered pan according to any one of claims 1 to 4, characterized in that: The connection port is a notch opened at the edge of the bottom cover sheet (20), and the notch extends from the edge of the bottom cover sheet (20) toward the center.

7. The bottom-covered pan according to any one of claims 1 to 4, characterized in that: The connection port comprises a connection hole (201) provided on the surface of the bottom cover film (20) and an edge port (203) provided on the edge of the bottom cover film (20).

8. The bottom-covered pot according to claim 5, characterized in that: The connection hole (201) is one or more of a square hole, a circular hole or an elliptical hole.

9. The bottom-covered pot according to claim 8, characterized in that: The bottom cover sheet (20) is provided with a central hole (204), the width of the central hole (204) is greater than the connection hole (201), and the central hole (204) is one of a square hole, a circular hole or an elliptical hole.

10. The bottom-covered pan according to any one of claims 1 to 4, characterized in that: The pot bottom (11) is a circular aluminum alloy flat pot bottom, the bottom covering sheet (20) is a circular stainless steel magnetic bottom covering sheet, and the diameter of the bottom covering sheet (20) is less than or equal to the diameter of the pot bottom (11).

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