Non-stick pot

Abstract

A non-stick pot, comprising a pot body (10). A textured non-stick region is formed on an inner surface of the pot body (10). The textured non-stick region comprises a plurality of concave-convex cells (11) connected to each other. The concave-convex cells (11) comprise convex edges (111), a concave portion (112) surrounded by the convex edges (111), a plurality of oil locking holes (113) formed on a bottom surface of the concave portion (112), and a porous film layer (114) formed on surfaces of the concave-convex cells (11). Adjacent concave-convex cells (11) are connected by means of the convex edges (111). The pot can have an enhanced non-stick property and a prolonged non-stick service life.

Description

A non-stick cookware Technical Field

[0001] This utility model relates to the field of cookware technology, specifically providing a non-stick cookware. Background Technology

[0002] Physical non-stick pans are becoming increasingly popular in daily life due to their safer and healthier use compared to coated non-stick pans.

[0003] During use, the inner surface of a non-stick pan needs to come into frequent contact with a spatula. Over time, the non-stick layer on the inner surface of the pan will be worn down, eventually leading to a decrease or even loss of the non-stick effect. The non-stick effect of current physical non-stick pans has a limited duration, resulting in a reduced lifespan of the pan. In addition, some current non-stick pans have poor non-stick performance.

[0004] Therefore, how to further improve the non-stick effect and service life of physically non-stick pans is a problem worthy of research in this field.

[0005] Utility Model Content

[0006] This utility model aims to solve one of the technical problems in related technologies to a certain extent. Therefore, this utility model provides a non-stick cookware with excellent non-stick properties and a longer service life.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a non-stick cookware, comprising a pot body, wherein an uneven non-stick area is formed on the inner surface of the pot body, the uneven non-stick area comprising a plurality of interconnected uneven cell units, the uneven cell unit comprising a convex ridge, a recessed portion formed by the convex ridge, a plurality of oil-locking holes formed on the bottom surface of the recessed portion, and a porous film layer formed on the surface of the uneven cell unit.

[0008] In this technical solution, by setting recesses, oil-locking holes, and a porous film layer on the inner surface of the pot, three different pore structures of different sizes are formed on the inner surface of the pot. During use, the convex ridges can lift the food, reducing the contact area between the food and the inner surface of the pot, and can also withstand iron spatulas and protect the film layer in the recesses from damage. The oil-locking holes can lock in some oil molecules, and the oil-locking function of the oil-locking holes can make the pot non-stick. The porous film layer can enhance the hydrophobic and oleophobic properties. It can be seen that the various different structures on the inner surface of the pot can work together to improve the non-stick effect of the pot and extend the non-stick life of the pot.

[0009] Furthermore, a porous film layer is formed on the side and bottom surfaces of the oil-locking hole. By forming a porous film layer inside the oil-locking hole, during use, since the oil-locking hole is located on the bottom surface of the recess, the oil-locking hole and the porous film layer inside the oil-locking hole will not come into contact with the spatula or other tools, reducing wear and ensuring that its non-stick properties are not affected even after prolonged use.

[0010] Furthermore, a porous film layer is formed on the bottom and side surfaces of the recessed portion. This increases the area of ​​the porous film layer and improves the non-stick effect.

[0011] Furthermore, the diameter of the inscribed circle of the recess is between 3mm and 8mm, the diameter of the oil-locking hole is between 0.2mm and 0.55mm, and the depth of the oil-locking hole is between 0.1mm and 0.4mm.

[0012] Furthermore, the thickness of the pot body is between 2mm and 5mm.

[0013] Furthermore, the number of the plurality of oil-locking holes in each of the concave and convex cell units is between 10 and 100.

[0014] Furthermore, the diameter-to-depth ratio of the oil-locking hole is between 0.5 and 6.

[0015] Furthermore, the porous membrane is formed on the surface of the pot body in the uneven non-stick area by oxidation, PVD, or nitriding, and the pore size in the membrane is on the nanometer scale.

[0016] Furthermore, the oil-locking hole is formed by laser engraving.

[0017] Furthermore, the width of the protruding ridge is between 0.1 mm and 0.5 mm.

[0018] Furthermore, the inner surface of the pot body also includes a patternless area surrounding the non-stick, raised surface area, and the distance between the upper boundary of the non-stick, raised surface area and the bottom surface of the pot body is not less than a set height. This ensures that the non-stick area covers the entire inner surface of the pot body, allowing the cookware to achieve a better non-stick effect during cooking.

[0019] Furthermore, the opening outline of the concave and convex cells is a regular polygon. This means that adjacent concave and convex cells are connected by linear edges, which facilitates control over the width of the convex edges during design, thereby allowing for better control over the contact area between the food and the pot surface, and ultimately, better control over the non-stick effect.

[0020] Furthermore, the oil-locking hole is designed as a cylindrical hole, which facilitates processing and allows for a larger accommodating space.

[0021] Furthermore, the non-stick cookware also includes a handle disposed on the pot body and a flange disposed on the edge of the opening of the pot body and bent outward.

[0022] These features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. The preferred embodiments or means of this utility model will be shown in detail in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of this utility model. In addition, each of these features, elements and components appearing in the following text and drawings is multiple and is labeled with different symbols or numbers for convenience, but all represent parts with the same or similar structure or function. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] Figure 1 is a top view of the cookware according to one embodiment of the present invention;

[0025] Figure 2 is a front cross-sectional view of a cookware according to one embodiment of the present invention;

[0026] Figure 3 is a partial enlarged view of the non-stick area inside the cookware according to one embodiment of the present invention.

[0027] Figure 4 is an enlarged view of point A in Figure 2 of this utility model;

[0028] Figure 5 is an enlarged view of section A1 in Figure 4 of this utility model.

[0029] Among them, 10 is the pot body; 11 is the concave-convex cell; 111 is the convex ridge; 112 is the recessed part; 113 is the oil-locking hole; 114 is the film layer; 12 is the handle; 13 is the flange; H is the total height of the pot body; h is the distance between the upper boundary of the concave-convex non-stick area and the bottom of the pot body. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain this utility model and should not be construed as limiting it.

[0031] The terms "an embodiment," "example," or "trademark" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this utility model. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0032] Referring to Figures 1, 2, and 3, one embodiment of this utility model discloses a non-stick cookware. The non-stick cookware in this embodiment is an uncoated non-stick cookware. When in use, there is no need to set a non-stick coating. By simply setting the structure of the inner surface of the pot body 10, a physical non-stick effect can be achieved well. Compared with coated pots, it is safer and healthier.

[0033] The non-stick cookware of this utility model includes a pot body 10, the inner surface of which is formed with a non-stick area for cooking. The non-stick area includes a plurality of interconnected non-stick cells 11. Each non-stick cell 11 includes a raised ridge 111, a recessed portion 112 formed by the raised ridge 111, a plurality of oil-locking holes 113 formed on the bottom surface of the recessed portion 112, and a porous film layer 114 formed on the surface of the non-stick cell 11. Adjacent non-stick cells 11 are connected by the raised ridge 111.

[0034] The uneven non-stick area in this embodiment can be formed by molding (hot pressing) or etching (chemical etching).

[0035] In this embodiment, a plurality of concave and convex cell units 11 are provided on the inner surface of the pot body 10. Each concave and convex cell unit 11 includes a convex ridge 111 and a recessed portion 112 formed by the convex ridge 111. During cooking, the food is cooked in the area distributed in the concave and convex non-stick area of ​​the pot body 10. Due to the setting of the convex ridge 111, the convex ridge 111 can lift the food, reducing the contact area between the food and the inner surface of the pot body 10. Moreover, since the convex ridge 111 is higher than the recessed portion 112, the internal structure of the recessed portion 112 will not come into contact with the spatula during cooking, thereby reducing the wear of the internal structure of the recessed portion 112. For example, when the bottom and sides of the recessed portion 112 are provided with a porous membrane layer 114, these porous membrane layers 114 provided in the recessed portion 112 are not easily damaged, thereby ensuring that the non-stick properties of the cookware are not lost and that a longer service life is guaranteed.

[0036] In addition, this embodiment also provides an oil-locking hole 113 on the bottom surface of the recessed portion 112. The oil-locking hole 113 is further recessed relative to the recessed portion 112 inside the pot body 10, which is equivalent to forming a multi-layered recessed structure inside the pot body 10. Moreover, the size of the oil-locking hole 113 is much smaller than the size of the recessed portion 112. When it is difficult for food to enter the recessed portion 112, it is even more impossible for it to enter the oil-locking hole 113. However, oil molecules can enter the oil-locking hole 113. During the cooking process, the oil molecules expand when heated to produce oil vapor. The oil vapor will lift the food from the bottom, thereby further reducing the contact between the food and the surface of the pot body 10.

[0037] In one embodiment of this utility model, the diameter-to-depth ratio of the oil-locking hole 113 is between 0.5 and 6. It can be seen that the oil-locking hole 113 of this utility model has a large diameter-to-depth ratio (the ratio of the diameter to the depth of the oil-locking hole). This makes the oil-locking hole generally flat, facilitating processing. Moreover, during use, the larger diameter-to-depth ratio allows oil molecules to more easily fill the entire oil-locking hole, giving it better oil-locking ability and thus improving the non-stick effect.

[0038] Referring to Figure 5, in a specific configuration, the diameter of the oil-locking hole 113 is between 0.2 mm and 0.55 mm, and the depth d1 of the oil-locking hole 113 is between 0.1 mm and 0.4 mm.

[0039] In one embodiment of this utility model, the thickness of the pot body is between 2mm and 5mm. This design ensures the strength of the pot body and avoids areas with thin walls after creating recesses and oil-locking holes on the inner surface of the pot, thus guaranteeing the pot's service life. It should be noted that in actual implementation, the substrate of the pot body can be a single-layer metal layer or a multi-layer composite metal layer. When the substrate is a multi-layer composite layer, it is necessary to ensure that the thickness of the innermost metal layer is not penetrated when creating the recesses and micropores of this utility model.

[0040] It should be noted that the innermost layer of the multi-layer composite structure of the pot body of this utility model can be set as a titanium metal layer, and the uneven non-stick area is set on the surface of the titanium metal layer. When forming the recessed part, it can be formed by pressing. Then, the oil-locking hole is formed on the bottom surface of the recessed part by laser engraving. During pressing, the titanium metal layer is only deformed, but the thickness does not change. Therefore, there is a concern that the design of the multi-hole structure of this utility model may increase the amount of titanium metal material used.

[0041] Furthermore, in this embodiment, a porous film layer is formed on the surface of the uneven non-stick area of ​​the pot body 10. The film layer in this embodiment is a nano-scale oxide layer structure, which has porous characteristics. When in use, the porous film layer has good hydrophobic and oleophobic properties, thereby enhancing the non-stick effect of the pot body 10.

[0042] As can be seen, this utility model forms three different structures on the inner surface of the pot body 10: a raised ridge 111 and a recessed portion 112, an oil-locking hole 113, and a porous film layer 114. When in use, all the structures mentioned above have a certain non-stick effect, and the non-stick effect of the three structures is achieved by different principles. Thus, the non-stick pot of this utility model has multiple non-stick effects, which can achieve better non-stick performance and maintain a longer non-stick life.

[0043] In one embodiment of this utility model, the film layer 114 is formed on the side and bottom surfaces of the oil-locking hole 113. In this embodiment, by forming a porous film layer 114 within the oil-locking hole 113, during use, since the oil-locking hole 113 is located on the bottom surface of the recess 112, the oil-locking hole 113 and the porous film layer 114 within it will not come into contact with the spatula or other cooking utensils, reducing wear and ensuring that its non-stick properties are not affected even after prolonged use.

[0044] It is conceivable that the porous film layer 114 can also be formed on the bottom and side surfaces of the recessed portion 112. Combined with the porous film layer 114 structure formed within the oil-locking hole 113 mentioned above, all surfaces of the uneven non-stick area have the porous film layer 114, thus increasing the area of ​​the porous film layer 114 and improving the non-stick effect.

[0045] This invention creates a non-stick, uneven area on the inner metal surface of the pot body 10. The raised ridges 111 can lift the food and protect the recessed portion 112 from contact with the spatula. This effectively protects the recessed portion 112, the oil-locking hole 113, and the porous membrane layer 114 within the recessed portion 112 and the oil-locking hole 113 from damage. The oil molecules stored in the oil-locking hole 113 give the pot body 10 a certain degree of non-stickness. Furthermore, the air in the porous membrane layer 114 expands after heating, forming hydrophobic and oleophobic properties. In this way, three different types of pores are combined to achieve three different non-stick effects, thereby enabling the cookware to achieve a better non-stick effect.

[0046] It is conceivable that this embodiment, through the combination design of multiple holes, has better non-stick performance and non-stick life compared to a single structure or a combination of two structures.

[0047] In practical application, since the oil-locking hole 113 is located on the bottom surface of the recess 112, and the size of the recess 112 is relatively small, the size of the oil-locking hole 113 is even smaller. In actual production, the oil-locking hole 113 can be formed by drilling a hole on the bottom surface of the recess 112 using laser engraving technology. Alternatively, the oil-locking hole can be designed as a cylindrical hole, which facilitates processing and improves its oil-locking ability.

[0048] It should be noted that this utility model does not specifically limit the location of the porous membrane layer 114. In actual design, the porous membrane layer 114 can be set only on the surface (bottom and side) of the recessed portion 112, or only on the bottom and side of the oil-locking hole 113. Of course, it can also be set on the bottom and side of the recessed portion 112 and the bottom and side of the oil-locking hole 113 at the same time. All of the above setting methods fall within the protection scope of this utility model.

[0049] To achieve a better non-stick effect, as shown in Figures 4 and 5, the present invention preferably provides the porous film layer 114 on the bottom and side surfaces of the recessed portion 112 and the bottom and side surfaces of the oil-locking hole 113.

[0050] As one embodiment of this utility model, referring to Figures 3 and 5, the diameter L of the recessed portion 112 is between 3mm and 8mm, the width of the convex ridge 111 is between 0.1mm and 0.5mm, and the distance d between the top surface of the convex ridge and the bottom surface of the recessed portion is between 0.08mm and 0.25mm. It should be noted that when the opening contour of the recessed portion is circular, the diameter of the recessed portion 112 is between 3mm and 8mm, and when the opening contour of the recessed portion is a regular polygon, the diameter of the recessed portion 112 is the diameter of the inscribed circle of the opening contour of the recessed portion.

[0051] It can be seen that the size of the recessed portion 112 in this utility model is larger than the concave surface of the non-stick area in the prior art, which is convenient for processing. Moreover, the larger size of the recessed portion 112 also makes it easier to process the oil-locking hole 113 on the bottom surface of the recessed portion 112. In this embodiment, by reasonably designing the size of the recessed portion 112 and the oil-locking hole 113, while satisfying the need for convenient processing, better non-stick properties can be achieved through the coordination of the size design of the two.

[0052] As one embodiment of this utility model, referring to Figure 3, the number of oil-locking holes 113 in each of the concave-convex cell 11 is between 10 and 100. By setting a larger number of oil-locking holes 113, the oil storage capacity of the pot body 10 can be improved, thereby generating more oil vapor during cooking and better supporting the food. The specific number of oil-locking holes 113 in this embodiment can be optimized according to the size of the recessed portion 112 and the aperture of the oil-locking holes 113. In addition, in terms of the distribution structure of the oil-locking holes 113, it is preferable to evenly distribute multiple oil-locking holes 113 on the bottom surface of the recess.

[0053] In one embodiment of this utility model, the porous membrane 114 is formed on the surface of the pot body 10 in the uneven non-stick area by oxidation, PVD or nitriding, and the pore size in the membrane is in the nanometer range.

[0054] In this embodiment, the porous film layer 114 is nanoscale and is attached to the surface of the uneven non-stick area. In specific production, for example, when the pot body 10 is a titanium metal layer, a PVD porous film layer of titanium nitride (TiN) can be formed on the surface of the metal in a vacuum environment. Specifically, a hardening layer can be generated on the surface of the uneven non-stick area in a vacuum environment, or a nanocrystalline porous ultrahard metal oxide can be formed by micro-arc oxidation.

[0055] To further improve the non-stick effect of the pot body 10, the width of the convex ridge 111 in one embodiment of this utility model is between 0.1mm and 0.5mm. The convex ridge 111 in this utility model is close to linear, which can further reduce the area of ​​the top surface of the convex ridge 111, that is, reduce the contact area between the convex ridge 111 and the food, thereby improving the non-stick effect.

[0056] As one embodiment of this utility model, the inner surface of the pot body also includes a patternless area surrounding the non-stick area. The distance between the upper boundary of the non-stick area on the inner surface of the pot body 10 and the bottom surface of the pot body 10 is not less than a set height. As shown in Figure 2, since the food is generally located in the center of the pot body 10 during cooking, in order to ensure a larger non-stick area and enable the pot body 10 to accommodate cooking larger quantities of food, this utility model defines the relationship between the non-stick area and the total height of the pot body 10. In practice, the higher the upper boundary of the non-stick area is on the pot body 10, the larger the range of the non-stick area, and the larger the range of the non-stick area on the inner surface of the pot body 10. In practice, the non-stick area is generally located in the central area of ​​the inner surface of the pot body 10, and the distance h between the upper boundary of the non-stick area on the inner surface of the pot body 10 and the bottom surface of the pot body 10 is not less than 1 / 4 of the total height H of the pot body 10. It is conceivable that, under certain circumstances, the entire inner surface of the pot body of this utility model can be set as a non-stick, textured area.

[0057] Referring to Figure 3, in one embodiment of this utility model, the opening outline of the concave-convex cell 11 is a regular polygon, preferably a regular hexagon. In this embodiment, adjacent concave-convex cells 11 are connected by linear edges. Thus, in actual design, by controlling the width of the convex edge 111, the contact area between the food and the surface of the pot body 10 can be better controlled, thereby better controlling the non-stick effect.

[0058] Furthermore, it is easy to imagine that the cookware of this utility model also includes a handle 12 disposed on the pot body 10 and a flange 13 disposed on the edge of the opening end of the pot body 10.

[0059] The substrate of the cookware in this invention can be selected individually from materials such as stainless steel, titanium, and aluminum, or from a composite metal substrate layer formed by metallurgical bonding of multiple materials.

[0060] The above are merely specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. A non-stick cookware, comprising a pot body (10), characterized in that, The inner surface of the pot body (10) is formed with a non-stick area for cooking. The non-stick area includes a plurality of interconnected non-stick cells (11). Each non-stick cell (11) includes a ridge (111), a recess (112) formed by the ridge (111), a plurality of oil-locking holes (113) formed on the bottom surface of the recess (112), and a porous film layer (114) formed on the surface of the non-stick cell (11). Adjacent non-stick cells (11) are connected by the ridge (111).

2. The non-stick cookware as described in claim 1, characterized in that, The number of oil-locking holes (113) in the concave-convex cell (11) is between 10 and 100.

3. The non-stick cookware as described in claim 1, characterized in that, The oil-locking hole (113) is configured as a cylindrical hole, and the diameter-to-depth ratio of the oil-locking hole (113) is between 0.5 and 6.

4. The non-stick cookware as described in claim 1, characterized in that, The diameter of the recess (112) is between 3 mm and 8 mm, the width of the convex ridge (111) is between 0.1 mm and 0.5 mm, and the distance between the top surface of the convex ridge and the bottom surface of the recess is between 0.1 mm and 0.4 mm.

5. The non-stick cookware as described in claim 1, characterized in that, The diameter of the oil-locking hole (113) is between 0.2 mm and 0.55 mm, and the depth of the oil-locking hole (113) is between 0.1 mm and 0.4 mm.

6. The non-stick cookware as described in any one of claims 1 to 5, characterized in that, The thickness of the pot body is between 2mm and 5mm.

7. The non-stick cookware as described in any one of claims 1 to 5, characterized in that, The pore size of the membrane (114) is in the nanometer range.

8. The non-stick cookware as described in any one of claims 1 to 5, characterized in that, The inner surface of the pot body also includes a patternless area surrounding the non-stick area, and the distance between the upper boundary of the non-stick area on the inner surface of the pot body (10) and the bottom surface of the pot body (10) is not less than a set height.

9. The non-stick cookware as described in any one of claims 1 to 5, characterized in that, The opening outline of the concave-convex cell (11) is a regular polygon.

10. The non-stick cookware according to any one of claims 1 to 5, characterized in that, The non-stick cookware also includes a handle (12) provided on the pot body (10) and a flange (13) provided on the edge of the opening of the pot body (10) and bent outward.

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