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CN-224206599-U - Cooking pot easy to clean

CN224206599UCN 224206599 UCN224206599 UCN 224206599UCN-224206599-U

Abstract

The utility model relates to an easy-to-clean cooking pot, which comprises a substrate layer and a surface treatment layer, wherein the substrate layer is provided with a pot groove for accommodating food, and the surface treatment layer is formed on the inner surface of the pot groove. The inner surface of the pot groove is provided with a non-nanoscale three-dimensional grain structure which is composed of grooves and protruding points which are arranged periodically, and a plurality of protruding points are arranged in each groove. Wherein the diameter W of the circumscribing circle of the groove is 1mm-5mm, the distance N between the centers of two adjacent salient points in the groove is 0.2mm-2mm, and the depth D of the groove is 0.1mm-1.5mm. The design reduces the residual retention area by dividing the groove space, enlarges the heat conduction surface area, improves the heating efficiency and forms a multi-stage water vapor generating unit by cooperating with the groove.

Inventors

  • WANG DALI
  • WEN YANTAO
  • TANG DAO

Assignees

  • 小熊电器股份有限公司

Dates

Publication Date
20260508
Application Date
20250530

Claims (10)

  1. 1. An easy-to-clean cooking pot, comprising: The food packaging device comprises a substrate layer (1), wherein a pot groove (11) for containing food is formed in the substrate layer (1), a non-nanoscale three-dimensional grain structure (2) is arranged on the inner surface of the pot groove (11), the non-nanoscale three-dimensional grain structure (2) is composed of grooves (21) and protruding points (22) which are periodically arranged, and a plurality of protruding points (22) are arranged in each groove (21); a surface treatment layer (3), wherein the surface treatment layer (3) is formed on the inner surface of the pot groove (11); The diameter W of the circumcircle of the groove (21) is 1mm-5mm, the distance N between the centers of two adjacent convex points (22) in the groove (21) is 0.2mm-2mm, and the depth D of the groove (21) is 0.1mm-1.5mm.
  2. 2. An easy-to-clean cooking pot according to claim 1, characterized in that the grooves (21) are hexagonal grooves (21) and the minimum distance H between the grooves (21) and the adjacent grooves (21) is 0.2mm-2mm.
  3. 3. The easy-to-clean cooking pot according to claim 2, wherein the salient points (22) in the grooves (21) comprise central salient points (221) and edge salient points (222) which are distributed at equal intervals along the circumferential direction of the central salient points (221), the diameter D1 of a circle enclosed by a plurality of the edge salient points (222) is 0.4mm-4mm, and the diameter D2 of the central salient points (221) and the edge salient points (222) is 0.1mm-1mm.
  4. 4. An easy-cleaning cooking pot according to claim 3, wherein the diameter W of the circumcircle of the groove (21) is 3.12mm, the minimum distance H between the groove (21) and the adjacent groove (21) is 0.3mm, the number of the edge convex points (222) is six, the diameter D1 of the circle enclosed by the plurality of the edge convex points (222) is 1.9mm, the diameter D2 of the center convex point (221) and the edge convex points (222) is 0.4mm, and the center distance N between the adjacent two edge convex points (222) is 0.95mm.
  5. 5. An easy-cleaning cooking pot according to claim 3, wherein the diameter W of the circumcircle of the groove (21) is 3.12mm, the minimum distance H between the groove (21) and the adjacent groove (21) is 1mm, the number of the edge convex points (222) is six, the diameter D1 of the circle enclosed by the plurality of the edge convex points (222) is 1.9mm, the diameter D2 of the center convex point (221) and the edge convex points (222) is 0.6mm, and the center distance N between the adjacent two edge convex points (222) is 0.95mm.
  6. 6. The easy-to-clean cooking pot according to any one of claims 1-5, wherein a silicon dioxide protective film with a thickness of 3-8 μm is further provided outside the surface treatment layer (3).
  7. 7. An easy-to-clean cooking pot according to any one of claims 1-5, characterized in that the surface treatment layer (3) comprises a titanizing layer and a titanium nitride layer deposited in sequence.
  8. 8. An easy-to-clean cooking pot according to any one of claims 1-5, characterized in that the non-nanoscale relief structure (2) occupies at least one half of the inner surface area of the recess (21).
  9. 9. The easy-to-clean cooking pot according to any one of claims 1-5, wherein the surface of the non-nanoscale three-dimensional texture structure (2) is provided with a plurality of micropores, and the diameter of the micropores is 10-200 μm.
  10. 10. The easy-to-clean cooking pot of claim 7, wherein the titanizing layer has a thickness of 2-5 μm.

Description

Cooking pot easy to clean Technical Field The utility model relates to the technical field of cooking cookware, in particular to an easy-to-clean cooking cookware. Background In the field of kitchen cooking appliances, achieving durable non-tackiness and easy cleanability of the inner surface of the cookware has been a core goal of technical innovation. Conventional cookware commonly employs teflon (polytetrafluoroethylene, PTFE) or ceramic coatings as anti-sticking solutions, which provide good non-stick effects at the initial stage. However, teflon coatings have the defects of poor wear resistance and easy falling, and have the problems of foaming, peeling and the like after long-term use, so that the non-tackiness performance is rapidly reduced. Although the wear resistance of the ceramic coating is improved, the non-sticking function of the ceramic coating mainly depends on surface methyl, so that the methyl is easily damaged in a high-temperature cooking environment, and the dilemma of non-sticking property attenuation is also faced. To ameliorate these drawbacks, the prior art has attempted to add abrasion resistant particles such as molybdenum dioxide, polyethersulfone, boron nitride, etc. to the coating to enhance mechanical strength. However, the improvement has obvious limitations that wear-resistant particles are various in variety and large in performance difference, the balance between lasting non-sticking and easy cleaning is difficult to realize, the internal stress of a coating is increased by adding the particles, and interfacial peeling is accelerated. Physical Vapor Deposition (PVD) technology is increasingly being used in the field of cookware manufacture because of its ability to form high hardness, low surface energy metal or nitride coatings (e.g., chromium films, titanium films) on the substrate surface. Aiming at the inner surface treatment, two main technical routes are available in the industry at present, namely a micron-sized grain combined with a vapor deposition method and direct polishing treatment. However, both of these approaches have significant drawbacks that make it difficult to meet the needs of users for high performance cookware. Although the micro-grooves can store moisture or air by capillary effect, a partial water vapor film is formed to reduce food adhesion when heated, it has problems of 1. Inherent cleaning defect of the micro-grooves increases difficulty of thorough cleaning. 2. The cost and reliability of the vapor deposition process are bottleneck, the vapor deposition is required to be carried out in a high vacuum environment, expensive targets and precise equipment are relied on, the production cost is high, meanwhile, the uniformity of the film layer of the complex curved surface matrix is difficult to control, and the yield is less than 60%. In order to reduce the cost, partial cookware adopts direct polishing light treatment to replace vapor deposition. The inner surface of the pot body reaches a mirror surface state through mechanical polishing, and the adhesion probability of food materials is reduced by using a smooth surface. However, the polishing process has a fundamental limitation in that the substrate is essentially tack-free. Whether it is an iron-based or aluminum alloy substrate, polishing can only temporarily reduce the surface roughness and cannot change the high surface energy properties of the substrate. And meanwhile, under the high-temperature cooking environment, saccharides and proteins in the food material can be chemically bonded with the metal surface to form a intractable adhesion layer. Disclosure of utility model The utility model provides an innovative scheme for combining millimeter-level composite grain design and titanizing-nitriding cooperative treatment, and the unification of cleaning performance, non-tackiness and durability is realized through multi-dimensional technology reconstruction. In order to achieve the aim, the utility model discloses an easy-to-clean cooking pot which comprises a base material layer, a surface treatment layer and a non-nanoscale three-dimensional grain structure, wherein a pot groove for accommodating food is formed in the base material layer, the surface treatment layer is formed on the inner surface of the pot groove, the inner surface of the pot groove is provided with the non-nanoscale three-dimensional grain structure, the non-nanoscale three-dimensional grain structure is formed by grooves and protruding points which are arranged periodically, a plurality of protruding points are arranged in each groove, the diameter W of a circumcircle of each groove is 1mm-5mm, the center distance N between every two adjacent protruding points in each groove is 0.2mm-2mm, and the depth D of each groove is 0.1mm-1.5mm. By adopting the scheme, the residue detention area is reduced by dividing the groove space, the heat conduction surface area is enlarged, the heating efficiency is improved, and the gro