CN218105545U - Cooking pot - Google Patents

Abstract

The utility model discloses a cooking pot, which comprises a pot side wall, a pot bottom wall and a bulge part; the pot bottom wall is connected with the pot side wall and forms an accommodating cavity with an upward opening together with the pot side wall in an enclosing manner; the pot bottom wall is provided with a meltallizing area; and one side of the pot bottom wall, which is far away from the opening, is provided with a magnetic conduction layer corresponding to the meltallizing region; the plurality of the protruding parts are arranged and correspond to the melting and jetting areas, and the protruding parts are arranged on one side, facing the opening, of the bottom wall of the pot in a protruding mode. The utility model discloses technical scheme is through being equipped with the meltallizing zone at the bottom of a boiler wall, and the bottom of a boiler wall deviates from open-ended one side and corresponds the meltallizing zone and be provided with the magnetic conduction layer, then makes this culinary art pot can be adapted to the electromagnetism stove scene. Correspond the protruding pot diapire towards open-ended one side of locating of meltalling zone through a plurality of bellyings, then strengthened the rigidity in meltalling zone on the one hand, avoid the diapire of container to take place great degree deformation in cold and hot alternate in-process, on the other hand still can be used to fry in shallow oil roast beefsteak or mutton chop etc..

Description

Cooking pot

Technical Field

The utility model relates to a kitchen utensil technical field, in particular to cooking pot.

Background

The cooking pot can be used for containing food materials independently, and can also be placed on heating appliances such as an induction cooker to heat the food materials in the cooking pot. The thickness of the bottom of the conventional cooking pot is generally uniform, and in order to improve the deformation resistance, the conventional improvement is to further increase the thickness of the bottom of the cooking pot, but this solution would greatly increase the cost.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main objective provides a cooking pot aims at improving the diapire rigidity of cooking pot.

In order to realize the purpose, the utility model provides a cooking pot, which comprises a pot side wall, a pot bottom wall and a convex part; the pot bottom wall is connected with the pot side wall and forms an accommodating cavity with an upward opening together with the pot side wall in an enclosing manner; the pot bottom wall is provided with a meltallizing area; and one side of the pot bottom wall, which is far away from the opening, is provided with a magnetic conduction layer corresponding to the meltallizing region; the plurality of the protruding parts are arranged and correspond to the melting and jetting areas, and the protruding parts are arranged on one side, facing the opening, of the bottom wall of the pot in a protruding mode.

Optionally, the protrusion includes a plurality of annular protrusions arranged at intervals, and the plurality of annular protrusions are arranged concentrically.

Optionally, the annular protrusion includes a plurality of surrounding ribs, and the shape formed by surrounding the surrounding ribs is rectangular or circular.

Optionally, each annular protrusion includes four enclose and establish the rib, each enclose and establish the rib and be the L type, four enclose and establish the shape that the rib encloses and close and form and be the rectangle.

Optionally, each of the enclosing ribs forms a corner of the rectangle, a gap is formed between two adjacent L-shaped ribs, and the protrusion further includes a reinforcing rib, which is disposed at the gap.

Optionally, the protrusion further comprises a connecting rib, and the connecting rib is connected with the plurality of annular protrusions in a cross manner to form a net structure; the connecting ribs are parallel to the reinforcing ribs.

Optionally, the distance between two adjacent annular protrusions is defined as L, and L is more than or equal to 0.5mm and less than or equal to 50mm.

Optionally, the height dimension of the convex part is defined as H, and H is more than or equal to 0.5mm and less than or equal to 4mm.

Optionally, the shape of the longitudinal section of the protrusion is rectangular, triangular or semicircular.

Optionally, one side of the bottom wall of the pan, which is away from the opening, is also convexly provided with a positioning step, and the positioning step surrounds the meltallizing zone.

The utility model discloses technical scheme is through being equipped with the meltallizing zone at the bottom of a boiler wall, and the bottom of a boiler wall deviates from open-ended one side and corresponds the meltallizing zone and be provided with the magnetic conduction layer, then makes this culinary art pot can be adapted to the electromagnetism stove scene. Correspond the protruding pot diapire towards open-ended one side of locating of meltalling zone through a plurality of bellyings, then strengthened the rigidity in meltalling zone on the one hand, avoid the diapire of container to take place great degree deformation in cold and hot alternate in-process, on the other hand still can be used to fry in shallow oil roast beefsteak or mutton chop etc..

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic perspective view of a cooking pan according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a sectional view of another embodiment of the cooking pan of the present invention;

FIG. 4 is a partial schematic view of FIG. 3;

FIG. 5 is a partial schematic structural view of an embodiment of a bottom wall of the cooking pan when the cooking pan of the present invention is a saucepan;

fig. 6 is a partial structural schematic view of an embodiment of the bottom wall of the cooking pan of the present invention when the cooking pan is a frying pan.

The reference numbers indicate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, back, 8230; \8230;) are provided in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a cooking pot.

In the embodiment of the present invention, please refer to fig. 1 to 4 in combination, the cooking pan includes a pan sidewall 100, a pan bottom wall 200 and a protrusion 300; the pan bottom wall 200 is connected to the pan side wall 100 and forms an accommodating cavity with an upward opening together with the pan side wall 100; the pan bottom wall 200 has a meltdown zone 201; and a magnetic conduction layer 202 is arranged on one side of the pan bottom wall 200, which is far away from the opening, corresponding to the meltallizing region 201; the plurality of protrusions 300 are protruded from the bottom wall 200 of the pan toward the opening corresponding to the meltdown zone 201.

The pot side wall 100 of the cooking pot is connected with the pot bottom wall 200, and is enclosed together with the pot bottom wall 200 to form an accommodating cavity with an upward opening, so that a user can put food materials into the accommodating cavity from the opening. The cooking pot can be placed on a heater for heating, for example, can be placed on a gas stove or an induction cooker for heating, so as to cook food in the cooking pot. Wherein, the cooking pot can be a stainless steel pot, an aluminum pot or a ceramic pot and the like. It can be understood that, in order to facilitate the aluminum pot and the ceramic pot to be heated on the induction cooker, the bottom of the aluminum pot and the ceramic pot can be limited with a meltallizing region 201, and the meltallizing region 201 is meltallized with a magnetic conduction layer 202, so that the aluminum pot and the ceramic pot can be heated by the induction cooker, and further the food material is cooked. Specifically, since the bottom wall of the cooking pan is closer to the induction cooker, the meltdown zone 201 may be provided on the bottom wall 200 of the cooking pan. It should be noted that only the meltallizing zone 201 in which the magnetic conductive layer 202 is meltallized can be heated by the induction cooker, and therefore, in order to have a better heating effect, the area of the meltallizing zone 201 can be set to be not less than the area of the heating plate of the induction cooker, so that the heating zone on the bottom wall 200 of the pan is at least equal to the area of the heating plate of the induction cooker, thereby improving the heating efficiency and having a more uniform heating effect. The utility model discloses corresponding meltallizing zone 201 through with magnetic conduction layer 202 among the technical scheme and locating pot diapire wall 200 and deviating from open-ended one side, then when this culinary art pot was placed on the electromagnetism stove, can make magnetic conduction layer 202 be close the electromagnetism stove more, can make then the electromagnetism stove have better heating effect to the pot body to make the food in the culinary art pot have the taste of preferred.

It can be understood that the meltallizing zone 201 of the pan bottom wall 200 is usually heated and cooled, so that the meltallizing zone 201 is easily deformed when heating and cooling are alternated. The utility model discloses among the technical scheme, through being provided with a plurality of bellyings 300 in pot bottom wall 200 towards open-ended one side, and at least partial bellyings 300 corresponds the setting of meltalling oneself with district 201, then can strengthen the rigidity in meltalling oneself with district 201, and then can improve the condition that pot bottom wall 200 takes place deformation easily in the heating and cooling alternative in-process. In addition, it can be understood that, by providing a plurality of protrusions 300 on the inner surface of the bottom wall 200, i.e. the surface of the bottom wall 200 facing the opening, the cooking pan can be used as a baking pan, for example, steak and lamb can be placed on the protrusions 300 of the cooking pan, so that on one hand, the surface of the fried and baked steak and lamb can have patterns, on the other hand, the excess grease flowing out during the frying and baking process can flow into the gap between the two protrusions 300, and thus the excess grease can be prevented from soaking the steak and lamb. Specifically, the protrusion 300 may be a protruding block, a protruding rib, a protruding ring, or the like, wherein the protruding rib may be linear, arc, circular, or the like. The plurality of protrusions 300 may be all disposed corresponding to the meltdown zone 201; only a part of the projection 300 may be provided corresponding to the meltallizing zone 201, and the other part of the projection 300 may be provided corresponding to a region other than the meltallizing zone 201.

The utility model discloses technical scheme is through being equipped with the meltallizing zone 201 at pot bottom wall 200, and pot bottom wall 200 deviates from open-ended one side and corresponds meltallizing zone 201 and be provided with magnetic conduction layer 202, makes this culinary art pot can be adapted to the electromagnetism stove scene. The plurality of protruding parts 300 are arranged on one side of the bottom wall 200 of the pot in a protruding mode towards the opening corresponding to the meltallizing area 201, so that on one hand, the rigidity of the meltallizing area 201 is enhanced, the bottom wall of the container is prevented from deforming to a large extent in the cold and hot alternating process, and on the other hand, the bottom wall can also be used for frying and roasting beef steaks or mutton steaks and the like.

Further, the convex portion 300 is connected with the side of the pan bottom wall 200 facing the opening through a circular arc surface.

The convex part 300 is connected with one side of the pot bottom wall 200 facing the opening through the arc surface, so that a sharp-angled structure is prevented from being formed at the joint of the convex part 300 and the pot bottom wall 200, and the situation that the joint of the convex part 300 and the pot bottom wall 200 is easy to crack due to stress concentration is avoided.

Further, the top surface of the convex portion 300 is also an arc surface, or the top surface and the side surface of the convex portion 300 are connected by an arc surface. With the arrangement, on one hand, the top end of the projection 300 is prevented from scratching the hand of the user when the user cleans the cooking pot; on the other hand, the situation that the top end of the convex part 300 is easy to damage under the action of external force due to the phenomenon of stress concentration is avoided. In the technical solution of the present invention, the "top end of the protruding portion 300" refers to an end of the protruding portion 300 away from the bottom wall 200 of the pot.

In one embodiment, as shown in fig. 1, the protrusion 300 includes a plurality of annular protrusions 310 arranged at intervals, and the plurality of annular protrusions 310 are arranged concentrically.

Through protruding portion 300 including a plurality of annular protruding 310 that the interval set up, and a plurality of annular protruding 310 concentric settings, make meltallizing zone 201 in the position that the distance from the center of annular protruding 310 equals, rigidity can keep unanimous to can all-round guarantee meltallizing zone 201 has the rigidity of preferred.

It should be noted that, the plurality of annular protrusions 310 are concentrically arranged, which means that the center points of the annular protrusions 310 coincide. Specifically, the shape of the figure enclosed by the annular protrusions 310 may be the same, for example, the shape of the figure enclosed by the annular protrusions 310 is a rectangle, or the shape of the figure enclosed by the annular protrusions 310 is a circle, or the shape of the figure enclosed by the annular protrusions 310 is a pentagon, a hexagon, etc. Of course, the shape of the figure formed by at least two annular protrusions 310 of the plurality of annular protrusions 310 may be different, for example, the shape of the figure formed by at least two annular protrusions 310 may be circular and rectangular respectively, and the center of the circular shape coincides with the center of the rectangular shape. In addition, the shape of the meltdown zone 201 may be the same as the shape that the annular protrusion 310 encloses. For example, the shape of the meltdown zone 201 is rectangular, and the shape enclosed by the annular protrusion 310 is also rectangular; alternatively, the shape of the meltallizing zone 201 is circular, and the shape surrounded by the annular protrusion 310 is also circular. Of course, the shape of the meltdown zone 201 may be different from the shape defined by the surrounding annular protrusion 310. For example, the shape of the meltallizing zone 201 is rectangular, and the shape enclosed by the annular protrusion 310 is a non-rectangular shape such as a circle or a triangle; alternatively, the shape of the meltdown region 201 is circular, and the shape surrounded by the annular protrusion 310 is a non-circular shape such as a rectangle or a triangle.

In addition, the annular protrusion 310 in the present invention is a closed figure, such as a rectangle or a circle, and the shape of the annular protrusion 310 may be a continuously connected strip or a ring structure, or a plurality of bumps may be arranged at intervals and combined together, and the distribution shape thereof may form a rectangle or a circle.

Further, as shown in fig. 1, the annular protrusion 310 includes a plurality of surrounding ribs 311, and the shape formed by surrounding the plurality of surrounding ribs 311 is rectangular or circular.

By enclosing the plurality of enclosing ribs 311 to form a rectangular or circular shape, an effect of forming an annular protrusion 310 is achieved. Specifically, the enclosing ribs 311 may be in a straight shape, the plurality of straight enclosing ribs 311 may be connected end to form a closed polygon, or the plurality of straight enclosing ribs 311 are arranged at intervals between two adjacent ribs, but the plurality of straight enclosing ribs 311 are distributed to form a polygon. Of course, the enclosing ribs 311 may also be arc-shaped, so that a plurality of arc-shaped enclosing ribs 311 may enclose together to form the circular annular protrusion 310.

So set up, can also reduce material cost on satisfying certain rigidity requirement basis.

As shown in fig. 1, based on the scheme that the annular protrusion includes a plurality of surrounding ribs, further, each annular protrusion 310 includes four surrounding ribs 311, each surrounding rib 311 is L-shaped, and the shape formed by surrounding the four surrounding ribs 311 is rectangular.

By setting the surrounding ribs 311 to be L-shaped, the strength of the surrounding ribs 311 is improved, and further, the strength of the meltallizing region 201 is improved. Specifically, two sides of the L-shaped enclosure rib 311 may be respectively used as two sides of a rectangle. Or the L-shaped surrounding ribs 311 only serve as corners of the rectangle, four L-shaped surrounding ribs 311 are arranged in central symmetry, and a gap is formed between two adjacent L-shaped surrounding ribs 311.

Referring to fig. 1 and fig. 2, based on the scheme that the surrounding ribs 311 are L-shaped, each surrounding rib 311 forms a corner of the rectangle, and a gap is formed between two adjacent surrounding ribs 311, further, in this embodiment, the protruding portion 300 further includes a reinforcing rib 320, and the reinforcing rib 320 is disposed at the gap between two adjacent surrounding ribs 311.

By providing the reinforcing ribs 320 between two adjacent surrounding ribs 311, the gap between the two surrounding ribs 311 is further filled, thereby enhancing the rigidity of the meltallizing region 201. Specifically, the L-shaped enclosure ribs 311 have two sides, two adjacent enclosure ribs 311 are defined as a first enclosure rib and a second enclosure rib, the space is formed between the side of the first enclosure rib close to the second enclosure rib and the side of the second enclosure rib close to the first enclosure rib, and the extending directions of the two sides are parallel. The extending directions of two adjacent sides of the two sides are defined as a first direction, and the extending direction of the reinforcing rib 320 may be perpendicular to or parallel to the first direction, or may form an included angle with the first direction. It will be appreciated that the stiffness of the meltdown zone 201 may be further increased when the direction of extension of the reinforcing bars 320 is perpendicular to the first direction.

Further, referring to fig. 1 and fig. 2, the protrusion 300 further includes a connecting rib 330, and the connecting rib 330 is connected to the plurality of annular protrusions 310 in a crossing manner to form a mesh structure.

By arranging the connecting ribs 330 and forming the net-shaped structure by cross-connecting the connecting ribs 330 and the annular protrusions 310, it can be understood that after the connecting ribs 330 and the annular protrusions 310 are cross-connected, the connecting ribs 330 and the annular protrusions 310 are restricted with each other, so that the strength of the protruding portion 300 can be further improved, and the rigidity of the meltalling region 201 is further improved.

Further, as shown in FIG. 4, the distance between two adjacent annular protrusions 310 is defined as L, and L is greater than or equal to 0.5mm and less than or equal to 50mm.

Specifically, the distance L between two adjacent annular protrusions 310 may be 0.5mm, 1mm, 1.5mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, 30mm, 31mm, 32mm, 33mm, 34mm, 35mm, 36mm, 37mm, 38mm, 39mm, 40mm, 41mm, 42mm, 43mm, 44mm, 45mm, 46mm, 47mm, 48mm, 49mm, 50mm, or the like. By setting the distance between two adjacent annular protrusions 310 to be not less than 0.5mm, the occurrence of a situation where the adjacently disposed annular protrusions are difficult to be formed at intervals is avoided. By setting the spacing distance L between two adjacent annular projections 310 to be not more than 50mm, it is avoided that the number of annular projections 310 is small and it is difficult to ensure high rigidity of the meltdown region 201.

Further, as shown in FIG. 4, the height dimension of the protruding portion 300 is defined as H, which is 0.5mm ≦ H ≦ 4mm.

Specifically, the height dimension H of the boss 300 may be 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, or 4mm. By setting the height dimension of the protruding part 300 to be not less than 0.5mm and not more than 4mm, on one hand, the induction cooker can effectively heat the food placed on the protruding part 300, and on the other hand, the protruding part 300 can be ensured to have better deformation resistance to the pan bottom wall 200. If the height dimension of the protruding part 300 is less than 0.5mm, it is difficult to ensure that the protruding part 300 has better deformation resistance to the bottom wall 200 of the pot; if the height dimension of the protruding portion 300 is larger than 4mm, it is difficult to ensure the heat transfer of the induction cooker to the food on one hand, and it is also difficult for the user to clean the gap between two adjacent protruding portions 300 on the other hand.

Further, the shape of the longitudinal section of the boss 300 is rectangular, triangular, or semicircular.

By providing the longitudinal sectional shape of the boss 300 in a rectangular shape, a triangular shape, or a semicircular shape, molding of the boss 300 is facilitated. For ease of demolding, the shape of the longitudinal section of the boss 300 may preferably be triangular or semicircular.

Further, as shown in fig. 3, a positioning step 400 is further protruded from a side of the pan bottom wall 200 away from the opening, and the positioning step 400 surrounds the outside of the meltallizing zone 201.

By providing the positioning step 400, it is convenient to position the meltalling apparatus on the positioning step 400 to melt the magnetically permeable layer 202 toward the meltalling region 201. In addition, the positioning step 400 also has a better effect of limiting the meltallizing range, and prevents the magnetic conduction layer 202 from being meltallized in the region outside the meltallizing region 201.

Further, the utility model discloses magnetic conduction layer 202 among the technical scheme is the iron sand layer.

The electromagnetic oven is a cooking appliance manufactured by utilizing the electromagnetic induction heating principle. Therefore, in order to heat the food in the cooking pan, it is necessary to provide at least a magnetic material on the cooking pan. In this embodiment, the magnetic conductive layer 202 is arranged as the iron sand layer, so that when the cooking pot is placed on the induction cooker, after the induction cooker is opened, the alternating current introduced by the heating coil in the induction cooker can generate an alternating magnetic field. Because the magnetic conduction layer 202 of the bottom wall 200 of the cooking pan is the iron sand layer, the iron sand layer can be penetrated by the magnetic induction lines of the alternating magnetic field, so that a large amount of eddy current is formed at the magnetic induction lines, and further, the eddy current is converted into heat to heat the food in the cooking pan.

Of course, in other embodiments, the magnetically permeable layer 202 may also be a stainless steel layer containing ferrite.

In the technical scheme of the utility model, the cooking pot is a saucepan or a frying pan.

Typically, the depth of the saucepan is deeper than the depth of the frying pan. The depth of the saucepan is generally not less than 60mm and not more than 200mm, and the depth of the frying pan is generally not less than 10mm and not more than 60mm. When the cooking pan is a saucepan, as shown in fig. 5, the outer surface of the pan bottom wall 200 of the cooking pan is an upwardly concave arc surface. So set up, then can have the deformation tendency that continues upwards concave when pot bottom wall 200 is heated and expands, for the saucepan, this deformation can avoid the unstable risk of cooking pot laying. Specifically, when the pan bottom wall 200 has a plurality of concentrically arranged annular protrusions, the bottom surface of one of every two adjacent annular protrusions close to the edge of the pan bottom wall 200 is also arranged lower than the bottom surface of the annular protrusion far from the edge of the pan bottom wall 200. When the cooking pan is a frying pan, as shown in fig. 6, the inner surface of the pan bottom wall 200 of the cooking pan is a downwardly concave arc surface. With such an arrangement, when the bottom wall 200 is expanded by heat, the bottom wall tends to deform downward, and the deformation can prevent the oil in the cooking pan from flowing to the edge and the better frying and roasting effect on the food materials cannot be realized.

Further, as shown in fig. 3, the cooking pan according to the technical solution of the present invention may further include a handle 500, and the handle 500 is connected to one end of the pan sidewall 100 far away from the pan bottom wall 200. Wherein, handle 500 can set up one, or handle 500 be provided with two, and two handles 500 are around the central axis symmetry setting of cooking pot to this cooking utensil is put to the user side. Specifically, the handle 500 may be connected with the pan side wall 100 in an integrated manner, thereby improving the firmness of the handle 500. Or the handle 500 may be detachably connected to the pot side wall 100, thereby facilitating the detachment of the handle 500. The handle 500 may be made of a material with poor thermal conductivity, such as silicone, wood, or rubber.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims (10)

1. A cooking pan, characterized in that it comprises:

a pan side wall;

the pot bottom wall is connected with the pot side wall and is enclosed together with the pot side wall to form an accommodating cavity with an upward opening; the pot bottom wall is provided with a meltallizing area; and one side of the pot bottom wall departing from the opening is provided with a magnetic conduction layer corresponding to the meltallizing area; and

the protruding part, the protruding part is equipped with a plurality ofly, and corresponds the protruding locating of meltalling zone pot diapire orientation open-ended one side.

2. The cooking pan of claim 1, wherein the raised portion comprises a plurality of spaced annular projections, the plurality of annular projections being concentrically disposed.

3. The cooking pan of claim 2, wherein the annular protrusion comprises a plurality of circumferential ribs, and the circumferential ribs are enclosed to form a rectangular or circular shape.

4. The cooking pan of claim 3, wherein each of the annular protrusions comprises four of the surrounding ribs, each of the surrounding ribs is L-shaped, and the shape formed by the surrounding of the four surrounding ribs is rectangular.

5. The cooking pan of claim 4, wherein each of the circumferential ribs forms a corner of the rectangle, and a gap is provided between two adjacent circumferential ribs, and the protrusion further comprises a reinforcing rib provided at the gap.

6. The cooking pan of claim 5, wherein the protrusion further comprises a connection rib, the connection rib being cross-connected with the plurality of annular protrusions to form a net structure.

7. The cooking pan according to any one of claims 2 to 6, wherein a distance between two adjacent annular protrusions is defined as L, and 0.5mm L50 mm.

8. The cooking pan of any one of claims 1 to 6, wherein the height dimension of the raised portion is defined as H,0.5mm ≦ H ≦ 4mm.

9. The cooking pan of any one of claims 1 to 6, wherein the shape of the longitudinal section of the boss is rectangular, triangular or semicircular.

10. The cooking pan as claimed in any one of claims 1 to 6, wherein a side of the pan bottom wall facing away from the opening is further provided with a positioning step in a protruding manner, and the positioning step surrounds the meltallizing zone.

Images