CN207428922U - Cookware, cookware component and kitchen appliance - Google Patents

Abstract

The utility model discloses a kind of cookware, cookware component and kitchen appliance, the cookware includes：Inner casing and the shell being connected with the inner casing limit to accommodate the phase transformation chamber of liquid phase-change working medium between the inner casing and the shell；Wherein, positioned at the phase transformation intracavitary the inner casing outer circumferential surface and positioned at the phase transformation intracavitary the shell inner peripheral surface it is at least one on be provided with non-sticking lining.Phase-change working substance between the inner casing and shell of cookware according to the present utility model has higher cycle efficieny, improves the temperature uniformity of inner casing different parts, and cookware has physically better not viscous effect.

Description

Pan, pan subassembly and kitchen utensil

Technical Field

The utility model relates to the technical field of household appliances, in particular to pan, pan subassembly and kitchen utensil.

Background

In the related art, the temperature difference of different parts of the cookware is large, in order to slow down the phenomenon that food is burnt due to excessive heating, the non-stick coating is arranged on the inner wall of the cookware, but the non-stick coating has poor bonding force, poor scratch resistance and limited service life, so the coating is easy to drop and lose efficacy and is often scratched.

The phenomenon of pot burnt can appear in the pan that loses non-stick coating, simultaneously because non-stick coating mixes into food easily and is ingested by the human body, and then causes the potential safety hazard to consumer's healthy.

In the temperature equalization pot technology known by the inventor, a cavity is formed by an inner shell and an outer shell of a pot, and liquid phase change working medium is filled in the cavity so as to realize the purpose of temperature equalization.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the utility model provides a pot, the phase transition working medium between the inner shell of this pot and the shell has higher circulation efficiency, has improved the temperature homogeneity at the different positions of inner shell, and the pot has better physics on-stick effect.

The utility model also provides a pan subassembly of having above-mentioned pan.

The utility model also provides a kitchen utensil of having above-mentioned pan subassembly.

According to the utility model discloses a pot, include: the phase change device comprises an inner shell and an outer shell connected with the inner shell, wherein a phase change cavity for containing liquid phase change working media is defined between the inner shell and the outer shell; and at least one of the outer peripheral surface of the inner shell positioned in the phase change cavity and the inner peripheral surface of the outer shell positioned in the phase change cavity is provided with a non-stick coating.

According to the utility model discloses a pan sets up the non stick coating through at least one of the inner peripheral surface that is located the outer peripheral face of the inner shell of phase transition intracavity and is located the shell of phase transition intracavity, has accelerateed the heat circulation of phase transition working medium in the phase transition chamber from this, and the phase transition working medium has more efficient circulation efficiency, has improved the temperature homogeneity at the different positions of inner shell to realize that the pan is cooking a meal and is boiled the in-process and have better physics and not be stained with the effect.

According to an embodiment of the present invention, the non-stick coating is a water-based fluororesin non-stick coating.

According to an embodiment of the present invention, the water-based fluororesin non-stick coating includes: the oil-based ink comprises a first bottom oil layer and a first surface oil layer, wherein the thickness of the first bottom oil layer is 10-15 mu m, and the thickness of the first surface oil layer is 15-30 mu m.

According to an embodiment of the present invention, the spraying distance of the first bottom oil layer is 15cm-30cm, and the spraying pressure of the first bottom oil layer is 0.2MPa-0.3 MPa.

According to the utility model discloses an embodiment, the spraying distance of first face oil layer is 15cm-30cm, the spraying pressure of first face oil layer is 0.15MPa-0.3 MPa.

According to an embodiment of the utility model, after the first bottom oil layer and the first surface oil layer finish spraying, the first bottom oil layer and the first surface oil layer are placed under the environment of 80 ℃ -120 ℃ and dried for 10min-15min, and then placed under the environment of 380 ℃ -420 ℃ for sintering.

According to an embodiment of the invention, the non-stick coating is a ceramic non-stick coating.

According to an embodiment of the present invention, the ceramic non-stick coating comprises: the oil-based ink comprises a second bottom oil layer and a second surface oil layer, wherein the thickness of the second bottom oil layer is 15-25 mu m, and the thickness of the second surface oil layer is 8-25 mu m.

According to an embodiment of the present invention, the spraying distance of the second bottom oil layer is 15cm-30cm, and the spraying pressure of the second bottom oil layer is 0.15MPa-0.3 MPa.

According to an embodiment of the present invention, the spraying distance of the second topcoat is 15cm-30cm, and the spraying pressure of the second topcoat is 0.25MPa-0.35 MPa.

According to an embodiment of the present invention, after the second bottom oil layer is completely sprayed, the second bottom oil layer is dried for 3min to 15min in an environment of 50 ℃ to 60 ℃; and after the second surface oil layer is sprayed, placing the second bottom oil layer and the second surface oil layer in an environment of 60-80 ℃ for drying for 10-15 min.

According to the utility model discloses an embodiment, the inner shell internal face of inner shell include with the phase transition chamber that phase transition chamber position corresponds the wall, wherein at least some regional constructions of phase transition chamber correspondence wall are for not being stained with the layer region.

According to the utility model discloses an embodiment, the corresponding wall in phase transition chamber includes: the non-sticky layer comprises a heat source right area and a heat source non-right area which are suitable for being right opposite to the heat source, wherein the non-sticky layer area comprises the heat source non-right area.

According to an embodiment of the invention, the heat source is just setting up the non-stick layer to the region.

According to the utility model discloses an embodiment, the corresponding wall in phase transition chamber includes: the phase change cavity corresponds to the bottom wall surface and the phase change cavity corresponds to the peripheral wall surface, the phase change cavity corresponds to the bottom wall surface and forms the heat source dead zone, and the phase change cavity corresponds to the peripheral wall surface and forms the heat source non-dead zone.

According to the utility model discloses an embodiment, the corresponding wall in phase transition chamber includes: a first temperature zone and a second temperature zone, the temperature of the first temperature zone being adapted to be greater than the temperature of the second temperature zone when the pot is heated, wherein the non-stick layer zone comprises the second temperature zone.

According to an embodiment of the invention, the first temperature zone is provided with a non-stick layer.

According to the utility model discloses an embodiment, the corresponding wall in phase transition chamber includes: the phase change cavity corresponds bottom wall face and the phase change cavity corresponds week wall face, the phase change cavity corresponds bottom wall face and constitutes first temperature zone, the phase change cavity corresponds week wall face and constitutes the second temperature zone.

According to an embodiment of the invention, the temperature difference between the first temperature zone and the second temperature zone is 0-15 °.

According to an embodiment of the invention, the temperature difference between the first temperature zone and the second temperature zone is 0-8 °.

According to the utility model discloses an embodiment, the corresponding wall in phase transition chamber includes: the phase change cavity corresponds bottom wall face and phase change cavity and corresponds the week wall face, non-sticky layer region includes the phase change cavity corresponds the week wall face.

According to the utility model discloses an embodiment, the phase transition chamber corresponds the bottom wall face and sets up the non-stick layer.

According to the utility model discloses an embodiment, the corresponding wall in phase transition chamber includes: the phase change chamber corresponds end wall face and phase change chamber and corresponds all wall faces, the phase change chamber correspond all wall faces with the phase change chamber corresponds the end wall face and is the non-sticky layer region.

According to an embodiment of the present invention, the inner shell inner wall surface is integrally configured to be free of the non-stick layer region.

According to an embodiment of the present invention, the inner shell is in the shape of a convex spherical kettle.

According to an embodiment of the invention, the portion of the inner shell corresponding to the non-adhesive layer area is made of aluminum.

According to an embodiment of the present invention, the inner shell is integrally made of aluminum or iron.

According to the utility model discloses another aspect embodiment's pan subassembly, include: the pan and the liquid phase transition working medium described in the above embodiments, the liquid phase transition working medium is disposed in the phase transition cavity.

According to the utility model discloses an embodiment, liquid phase transition working medium is water, ammonia or n-hexane.

According to the utility model discloses the kitchen utensil of another aspect embodiment, including the pan subassembly in the above-mentioned embodiment.

According to an embodiment of the utility model, the kitchen utensil includes electric rice cooker, electric pressure cooker, electromagnetism stove.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic sectional view of a pot according to an embodiment of the present invention;

3 FIG. 3 2 3 is 3 a 3 schematic 3 sectional 3 view 3 of 3 the 3 pot 3 shown 3 in 3 FIG. 3 1 3 from 3 A 3- 3 A 3; 3

Fig. 3 is a partially enlarged view of a pot according to an embodiment of the present invention;

fig. 4 is a partially enlarged view of a pot according to another embodiment of the present invention;

fig. 5 is a schematic view of a pot according to still another embodiment of the present invention;

FIG. 6 is a partial enlarged view of circle B of FIG. 5;

fig. 7 is a schematic view of a pot according to an embodiment of the present invention;

fig. 8 is a schematic view of a pot according to another embodiment of the present invention;

fig. 9 is a schematic view of a pot according to another embodiment of the present invention.

Reference numerals: the heat-insulation pipe comprises an inner shell 10, an inner shell inner wall surface 103, an outer peripheral surface 104 of the inner shell, a phase change cavity corresponding wall surface 102, a heat source facing area 102a, a heat source non-facing area 102b, a first temperature area 102c, a second temperature area 102d, a first annular flange 101, an outer shell 20, an inner peripheral surface 105 of the outer shell, a second annular flange 201, a phase change cavity 30, a porous foam metal piece 40, a flow guide gap 50, a metal pipe 60 and a non-stick coating 70.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are 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 such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The embodiment of the present invention provides a cookware with reference to fig. 1 to 9.

According to the utility model discloses the pan can include inner shell 10 and shell 20, and the shell 20 cover is established in the outside of inner shell 10, and inner shell 10 links to each other with shell 20 and inject the phase transition chamber 30 that is used for holding liquid phase transition working medium between inner shell 10 and the shell 20. The liquid phase-change working medium can complete the transformation of the form in the phase-change cavity 30, for example, the liquid phase-change working medium can complete the transformation between the liquid state and the gas state to realize the heat transfer.

According to the utility model discloses the pan, for an adopt bilayer structure's physics is not stained with the pot, form vacuum phase transition chamber 30 between the inner shell 10 of pan and the shell 20, the position department injection that is close to the bottom in the phase transition chamber 30 has liquid phase transition working medium (such as water, ammonia or n-hexane etc.), heat the pan bottom like this, the temperature of pan bottom increases to behind the uniform temperature (such as the temperature >100 ℃), the liquid working medium that is close to bottom position department in the phase transition chamber 30 can vaporize and volatilize into gas, pass to the condensation end that is close to upper portion in the phase transition chamber 30, meanwhile along with thermal effective conduction, make the position that is close to its open end of pan heated, and the phase transition working medium after receiving the cold takes place the condensation and changes into liquid again, flow to the bottom in phase transition chamber 30, then evaporate again after being heated again, this heating condensation process is constantly circulated and is reciprocal, thereby ensure that the temperature field of whole pan each position after heating minutes basically keeps unanimous (if the The temperature of all parts of the whole cooker can be uniformly distributed by controlling the temperature to be +/-4 ℃, and finally, the cooker surface has a good physical non-stick effect during cooking.

As shown in fig. 4 to 6, a non-stick coating 70 is provided on at least one of the outer circumferential surface 104 of the inner case 10 located in the phase-change chamber 30 and the inner circumferential surface 105 of the outer case 20 located in the phase-change chamber 30.

The gaseous phase change working medium transfers heat to the inner shell 10 and the outer shell 20 in the phase change cavity 30, after releasing heat, the gaseous phase change working medium is changed into liquid from gaseous state and is attached to the inner shell 10 and the outer shell 20, and as the non-stick coating 70 is arranged on the outer circumferential surface 104 of the inner shell 10 positioned in the phase change cavity 30 or/and the inner circumferential surface 105 of the outer shell 20 positioned in the phase change cavity 30, the liquid phase change working medium can quickly slide to the bottom of the phase change cavity 30 and then absorbs heat for vaporization; therefore, the heat circulation of the phase change working medium in the phase change cavity 30 is accelerated, the phase change working medium has higher efficient circulation efficiency, the temperature uniformity of different parts of the inner shell 10 is improved, and the cooker has better physical non-stick effect in the cooking process.

Before spraying the non-stick coating 70 on the outer circumferential surface 104 of the inner casing 10 and the inner circumferential surface 105 of the outer casing 20, the outer circumferential surface 104 of the inner casing 10 and the inner circumferential surface 105 of the outer casing 20 may be pretreated to make the outer circumferential surface 104 of the inner casing 10 and the inner circumferential surface 105 of the outer casing 20 become clean surfaces with certain roughness. The pretreatment may include degreasing, sanding, high temperature degreasing, alkali washing, anodizing, etc., and the designer may select the materials according to the materials of the inner shell 10 and the outer shell 20.

In some embodiments of the present invention, the non-stick coating 70 is a water-based fluororesin non-stick coating. The water-based fluororesin non-stick coating comprises a first bottom oil layer and a first surface oil layer, wherein the first bottom oil layer is in direct contact with a plate to be sprayed, and the first surface oil layer is attached to the first bottom oil layer, the thickness of the first bottom oil layer is 10-15 mu m, and the thickness of the first surface oil layer is 15-30 mu m.

Spraying a first bottom oil layer on the outer peripheral surface 104 of the clean inner shell 10 or/and the inner peripheral surface 105 of the outer shell 20 by using an air pressure spray gun, wherein the first bottom oil layer can be made of water-based fluororesin non-stick paint, the spraying distance is 15cm-30cm, the spraying pressure is 0.2MPa-0.3MPa, the film thickness is controlled to be 10 micrometers-15 micrometers, after the spraying of the first bottom oil layer is finished, the inner shell 10 or/and the outer shell 20 can be placed in an infrared furnace at the temperature of 80-90 ℃ for drying for 10min-15min, and after cooling, the first surface oil layer is sprayed; the spraying distance of the first surface oil layer is 15cm-30cm, the spraying pressure is 0.15MPa-0.3MPa, the thickness of the first surface oil layer is controlled to be 10 mu m-20 mu m, the first surface oil layer is dried as soon as possible (can be dried for 10min-15min in the environment of 80-120 ℃) after spraying, and then the first surface oil layer is sintered for 5min-15min in the environment of 380-420 ℃ to enable the aqueous fluororesin to melt, level and form a film.

In other embodiments of the present invention, the non-stick coating 70 is a ceramic non-stick coating. The ceramic non-stick coating comprises a second bottom oil layer and a second surface oil layer, wherein the thickness of the second bottom oil layer is 15-25 mu m, and the thickness of the second surface oil layer is 8-25 mu m.

The ceramic non-stick paint can be sprayed by an air spray gun, the spraying distance of the second bottom oil layer is 15cm-30cm, the spraying pressure is 0.15MPa-0.3MPa, the film thickness of the second surface oil layer is controlled to be 15 mu m-25 mu m, the second bottom oil layer is sprayed and then placed in an infrared furnace at 50-60 ℃ for drying for 3min-15min, and the second surface oil layer is sprayed after cooling; the spraying distance of the second surface oil layer is 15cm-30cm, the spraying pressure is 0.25MPa-0.35MPa, the film thickness of the second surface oil layer is controlled to be 8μm-25μm, the second surface oil layer is dried as soon as possible (can be dried for 10min-15min at the temperature of 60 ℃ -80 ℃), sintered for 5min-15min at the temperature of 260 ℃ -280 ℃, the ceramic non-stick coating is fully solidified, and finally the temperature is slowly cooled, so that the crystallinity is improved.

The ceramic non-stick coating needs to be cured before spraying, and the bottom oil curing step of the second bottom oil layer is as follows: firstly, A, B components are uniformly mixed according to the proportion (33 percent of A component and 27 percent of B component), and the mixture is cured and rolled for 6 hours at the rotating speed of 80 to 120 revolutions per minute; the component C rolls for 6 hours independently, and the rotating speed is 80-120 r/m; mixing the (A + B) mixed component and the component C which are respectively aged for 6 hours in a rolling way according to the ratio of 60:40, rolling for 30min at the rotating speed of 80-120 r/min, and then filtering by using a filter screen with 300-500 meshes.

The surface oil curing step of the second surface oil layer comprises the following steps: firstly, A, B components are uniformly mixed according to the proportion (49.5 percent of A component and 40 percent of B component), and the mixture is cured and rolled for 6 hours at the rotating speed of 80-120 r/m; the component C rolls for 6 hours independently, and the rotating speed is 80-120 r/m; mixing the (A + B) mixed component and the component C which are respectively aged for 6 hours in a rolling way according to a ratio of 90:10, rolling for 30min at a rotating speed of 80-120 r/min, and then filtering by using a filter screen with 100-150 meshes.

Cookware according to other embodiments of the present invention will be described in detail with reference to the accompanying drawings.

According to the utility model discloses the pan can include inner shell 10 and the shell 20 that links to each other with inner shell 10, inject the phase transition chamber 30 that is used for holding liquid phase transition working medium between inner shell 10 and the shell 20. The liquid phase-change working medium can complete the transformation of the form in the phase-change cavity 30, for example, the liquid phase-change working medium can complete the transformation between the liquid state and the gas state to realize the heat transfer.

As shown in fig. 7, the inner casing 10 has an inner casing inner wall surface 103, the inner casing inner wall surface 103 is a wall surface adapted to contact the cooking cavity, and the inner casing inner wall surface 103 of the inner casing 10 includes a phase change cavity corresponding wall surface 102 corresponding to a position of the phase change cavity 30, where the position correspondence is understood to correspond in a thickness direction of the inner casing 10, wherein at least a part of a region of the phase change cavity corresponding wall surface 102 is configured as a non-stick layer region.

That is, when the phase change cavities 30 are formed between the inner casing 10 and the outer casing 20, the inner casing inner wall surfaces 103 of the inner casing 10 are all facing the phase change cavities 30, and the inner casing inner wall surfaces 103 of the inner casing 10 are all phase change cavity corresponding wall surfaces 102. When only a portion between the inner casing 10 and the outer casing 20 is the phase change chamber 30, the inner casing inner wall surface 103 of the inner casing 10 includes two portions, one portion is the phase change chamber corresponding wall surface 102 corresponding to the phase change chamber 30, and the other portion is a common wall surface not corresponding to the phase change chamber 30.

At least a portion of the phase change cavity corresponding to the wall 102 is configured as an area without an anti-adhesive layer. In other words, only one part of the phase change cavity corresponding to the wall surface 102 may be provided with the non-stick layer, and the other part is not provided with the non-stick layer; or the phase change cavity corresponding to the wall 102 may not be provided with an anti-adhesive layer at all.

Therefore, the processing technology and the processing difficulty of the cookware can be greatly reduced, the production efficiency of the cookware is improved, and the processing cost is also remarkably reduced due to the fact that the use of the non-stick layer is reduced.

In addition, the arrangement of the non-stick layer is reduced, so that the non-stick layer can be prevented from falling off fundamentally, the amount of the non-stick layer entering food and being ingested by human bodies is reduced, and potential safety hazards to consumers are reduced.

It should be noted that, in the embodiment of the present invention, "inner" refers to a direction toward the inner center of the pot, and "outer" refers to a direction away from the inner center of the pot; the center of the cooker can be the center of a cooking cavity for containing food in the cooker.

According to the utility model discloses the pan, for an adopt bilayer structure's physics is not stained with the pot, form vacuum phase transition chamber 30 between the inner shell 10 of pan and the shell 20, the position department injection that is close to the bottom in the phase transition chamber 30 has liquid phase transition working medium (such as water, ammonia or n-hexane etc.), heat the pan bottom like this, the temperature of pan bottom increases to behind the uniform temperature (such as the temperature >100 ℃), the liquid working medium that is close to bottom position department in the phase transition chamber 30 can vaporize and volatilize into gas, pass to the condensation end that is close to upper portion in the phase transition chamber 30, meanwhile along with thermal effective conduction, make the position that is close to its open end of pan heated, and the phase transition working medium after receiving the cold takes place the condensation and changes into liquid again, flow to the bottom in phase transition chamber 30, then evaporate again after being heated again, this heating condensation process is constantly circulated and is reciprocal, thereby ensure that the temperature field of whole pan each position after heating minutes basically keeps unanimous (if the The temperature of all parts of the whole cooker can be uniformly distributed by controlling the temperature to be +/-4 ℃, and finally, the cooker surface has a good physical non-stick effect during cooking.

And foretell pan, because the existence in phase transition chamber 30, the temperature on the inner shell internal face 103 that phase transition chamber 30 is relative is even, consequently the utility model discloses at least some regions that the phase transition chamber of inner shell 10 corresponds wall 102 can be constructed for not having the non-stick layer region, therefore has effectively reduced because of not being stained with the wearing feature of coating relatively poor, the cohesion ideal inadequately, the life-span is shorter, easily drop and influence the pan and be stained with effect and life when cooking to effectively avoided not being stained with the coating and absorbed the back by the human body, cause the potential safety hazard to user's healthy. In addition, due to the fact that the use of the non-stick coating is reduced, the manufacturing cost of the cookware is greatly reduced, the processing difficulty of the cookware is reduced, the processing technology is simplified, and the production efficiency of the cookware is improved at least to a certain extent.

In some embodiments of the present invention, as shown in fig. 8, the phase change chamber corresponding wall 102 includes a heat source facing area 102a adapted to face the heat source and a heat source non-facing area 102b, wherein the non-adhesion layer area includes the heat source non-facing area 102 b.

The heat source dead area 102a is dead against the heat source, the received heat is large, food is easy to generate overheating on the heat source dead area 102a to cause the phenomenon of pan pasting, therefore, the non-stick layer can be arranged on the heat source dead area 102a, and the probability of pan pasting is reduced. The heat source non-right-facing area 102b is not directly right opposite to the heat source, so that the received heat is smaller than the heat source right-facing area 102a, the pan pasting probability of the heat source non-right-facing area 102b is lower, a non-stick layer is not arranged in the heat source non-right-facing area 102b to form a non-stick layer area, the pan pasting phenomenon is effectively reduced, the pan cost is reduced, the processing procedures of the pan are reduced, the processing difficulty of the pan is reduced, the probability that the non-stick coating enters food is reduced at least to a certain degree, and the hidden danger caused to the body safety of a user is reduced.

It is of course understood that neither the heat source-facing area 102a nor the heat source-non-facing area 102b may be provided with the non-adhesive layer, i.e., the non-adhesive layer-free area includes the heat source-facing area 102a and the heat source-non-facing area 102 b.

Specifically, the phase change cavity corresponding wall surface 102 includes a phase change cavity corresponding bottom wall surface 102a and a phase change cavity corresponding peripheral wall surface 102b, the phase change cavity corresponding bottom wall surface 102a forms a heat source facing area 102a, and the phase change cavity corresponding peripheral wall surface 102b forms a heat source non-facing area 102 b.

That is, the heat source of the pot is directly opposite to the bottom wall surface 102a corresponding to the phase change cavity, the heat source of the pot is not directly opposite to the peripheral wall surface 102b corresponding to the phase change cavity, and the bottom wall surface 102a corresponding to the phase change cavity is the first heated area.

In other embodiments of the present invention, as shown in fig. 9, the phase change chamber corresponding wall 102 comprises a first temperature zone 102c and a second temperature zone 102d, the temperature of the first temperature zone 102c is suitable for being higher than the temperature of the second temperature zone 102d when the pot is heated, wherein the non-stick layer zone comprises the second temperature zone 102 d.

The first temperature area 102c is high in temperature, the received heat is the largest, and food is easy to overheat in the first temperature area 102c to cause the phenomenon of pan pasting, so that an anti-sticking layer can be arranged in the first temperature area 102c, and the probability of pan pasting is reduced. The temperature of the second temperature area 102d is relatively low, the received heat is relatively small compared with the first temperature area 102c, the probability that the second temperature area 102d sticks with the pan is low, therefore, no non-stick layer can be arranged in the second temperature area 102d to form a non-stick layer area, the pan sticking phenomenon is effectively reduced, meanwhile, the cost of the pan is reduced, the processing procedures of the pan are reduced, the processing difficulty of the pan is reduced, the probability that the non-stick coating enters into food is reduced at least to a certain extent, and the hidden danger caused to the body safety of a user is reduced.

Of course, it is understood that neither the first temperature region 102c nor the second temperature region 102d may be provided with an anti-adhesive layer, i.e., the non-adhesive layer region includes the first temperature region 102c and the second temperature region 102 d.

Specifically, as shown in fig. 9, the phase change cavity corresponding wall surface 102 includes a phase change cavity corresponding bottom wall surface 102c and a phase change cavity corresponding peripheral wall surface 102d, the phase change cavity corresponding bottom wall surface 102c forms a first temperature region 102c, and the phase change cavity corresponding peripheral wall surface 102d forms a second temperature region 102 d. That is, the temperature of the phase change chamber corresponding to the bottom wall surface 102c is high, and the temperature of the phase change chamber corresponding to the peripheral wall surface 102d is relatively low. For example, the first temperature zone 102c may be directly opposite the heat source and the second temperature zone 102d may be non-opposite the heat source.

Further, the temperature difference between the first temperature zone 102c and the second temperature zone 102d is 0-15 °.

Further, the temperature difference between the first temperature zone 102c and the second temperature zone 102d is 0 ° to 10 °, and more preferably 0 ° to 8 °. The larger the temperature difference between the first temperature region 102c and the second temperature region 102d, the more the non-stick layer needs to be provided in the first temperature region 102 c; when the temperature difference between the first temperature region 102c and the second temperature region 102d is small or even no temperature difference, no non-adhesive layer may be disposed in both the first temperature region 102c and the second temperature region 102 d.

In some embodiments of the present invention, for example, as shown in fig. 8 and 9, the phase change cavity corresponding wall surface 102 includes a phase change cavity corresponding bottom wall surface (102a, 102c) and a phase change cavity corresponding peripheral wall surface (102b, 102d), and the non-adhesion layer region includes a phase change cavity corresponding peripheral wall surface (102b, 102 d).

The non-adhesion layer region may be only the phase change cavity corresponding peripheral wall surfaces (102b, 102d), and of course, the non-adhesion layer region may include both the phase change cavity corresponding peripheral wall surfaces (102b, 102d) and the phase change cavity corresponding bottom wall surfaces (102a, 102 c).

Further, as shown in fig. 8 and 9, the phase change chamber is provided with a non-stick layer on the corresponding bottom wall surfaces (102a, 102 c). Because the bottom wall surfaces (102a, 102c) corresponding to the phase change cavities are opposite to the heat source, the temperatures of the bottom wall surfaces (102a, 102c) corresponding to the phase change cavities are high, and foods directly contacted with the bottom wall surfaces (102a, 102c) corresponding to the phase change cavities are easily heated excessively to be carbonized, so that the phenomenon of pan pasting is generated.

Therefore, the utility model discloses the pan only sets up the non-stick layer at phase transition chamber correspondence end wall face (102a, 102c), when effectively reducing the sticking with paste the pot, has reduced the pan cost, has reduced the manufacturing procedure of pan and has reduced the processing degree of difficulty of pan, and has reduced the probability that non-stick coating enters into food to a certain extent at least, reduces the hidden danger that causes user's health safety.

In other embodiments of the present invention, the phase change cavity corresponding wall surface 102 includes a phase change cavity corresponding bottom wall surface (102a, 102c) and a phase change cavity corresponding peripheral wall surface (102b, 102d), and the phase change cavity corresponding bottom wall surface (102a, 102c) and the phase change cavity corresponding peripheral wall surface (102b, 102d) are non-sticky layer regions.

Therefore, the utility model discloses a non-stick performance of pan is realized by the liquid phase transition working medium among bilayer structure and the bilayer structure, and the temperature that the phase transition chamber corresponds end wall and phase transition chamber and corresponds week wall is even relatively. The bottom wall surface corresponding to the phase change cavity and the peripheral wall surface corresponding to the phase change cavity are both not provided with non-stick coatings, so that the phenomenon of falling caused by insufficient binding force of the non-stick coatings and the cookware is fundamentally avoided, the non-stick coatings cannot enter food to be absorbed by consumers, and potential safety hazards to the body of the users are avoided.

And simultaneously, the utility model discloses a phase transition chamber corresponds end wall and phase transition chamber and corresponds all not do not have the non-stick coating of week wall, can also reduce the production degree of difficulty of pan, simplifies the production process of pan, and then has improved the production efficiency of pan, and has reduced the manufacturing cost of pan by a wide margin.

In some embodiments of the present invention, the inner shell 10 is in the shape of a convex spherical kettle. Therefore, super-strong heat convection can be formed inside the inner shell 10, circulation large boiling is generated, each rice grain can drink saturated water, and the volume of the rice grains is full. Simultaneously, inner shell 10 is the spherical cauldron shape design of evagination and combines the bilayer structure of pan for the pan be heated more evenly, has further avoided the emergence of sticking with paste the pot phenomenon, and spherical cauldron shape inner shell 10 can also disperse the gravity stack effect between the rice grain simultaneously, optimizes and sticks with paste the pot phenomenon.

Because the phase change cavity corresponds to at least part of the wall surface 102 to be the non-sticky layer area, the phenomenon that the cookware is burnt is effectively reduced, meanwhile, the manufacturing cost and the manufacturing process of the cookware are reduced, and the production efficiency of the cookware is effectively improved.

In some embodiments of the present invention, the portion of the inner shell 10 corresponding to the non-adhesive layer-free region is made of aluminum. Therefore, the forming effect of the pot is ensured, and the heat conducting performance of the pot is also ensured.

In some embodiments of the present invention, the inner shell 10 is integrally made of aluminum or iron. Therefore, the forming effect of the cookware is guaranteed, the heat conducting performance of the cookware is guaranteed, and meanwhile, the inner shell 10 is easier to process and higher in strength.

In an embodiment of the present invention, as shown in fig. 1, the pot opening of the inner shell 10 is provided with a first annular flange 101 bending outwards, the pot opening of the outer shell 20 is provided with a second annular flange 201 bending outwards, and the first annular flange 101 and the second annular flange 201 are hermetically connected to form a closed phase change cavity 30 between the inner shell 10 and the outer shell 20.

Preferably, the first annular flange 101 and the second annular flange 201 are welded together.

Through the sealing connection of the first annular flange 101 and the second annular flange 201, the first annular flange 101 on the inner shell 10 and the second annular flange 201 on the outer shell 20 are welded and sealed by adopting a welding process, so that the welding seams are completely sealed and have no gap, and preferably, the surfaces of the welding seams are ground and polished after welding, so that the closed phase change cavity 30 is formed between the inner shell 10 and the outer shell 20.

Further, as shown in fig. 1, a connection port is formed at an upper position of the outer wall surface of the housing 20, a metal pipe 60 hermetically communicated with the phase change chamber 30 is arranged at the connection port, and the metal pipe 60 is used for injecting a liquid phase change working medium to the bottom of the phase change chamber 30, so that the liquid phase change working medium is deposited at the bottom of the phase change chamber 30, and air in the phase change chamber 30 is discharged through the metal pipe 60.

A connector (such as a small hole with a diameter of about 3 mm) is arranged at a position of the shell 20 close to the upper part, then a metal pipe 60 (such as a metal hollow copper pipe) with the same diameter is inserted, and the contact position of the metal pipe 60 and the pot wall is welded and sealed, so that the metal pipe 60 and the phase change cavity 30 are hermetically communicated, a liquid phase change working medium is injected to the bottom of the phase change cavity 30 through the metal pipe 60, and air in the phase change cavity 30 is removed, so that the phase change cavity 30 is kept in a vacuum state.

Preferably, the degree of vacuum in the phase change chamber 30 is 10^-3Pa～10^-1Pa. Of course, the vacuum degree of the phase change chamber may be 10 as described above^-2Pa～10²Pa。

The vacuum degree in the phase change chamber 30 is controlled to be 10^-3Pa～10^-1Pa to reduce the phase change temperature of the liquid phase change working medium, the circulation vaporization and condensation of the liquid phase change working medium are convenient, thereby further ensuring the temperature uniformity of the bottom and the upper part of the pot, and further ensuring the temperature uniformity of all parts of the whole pot. Of course, the degree of vacuum in the phase change chamber 30 is not limited to the above specific range, and can be designed according to the actual situation.

Preferably, the inner shell 10 and the outer shell 20 are both formed by stamping a stainless steel plate or an aluminum alloy plate, and the thickness of the stainless steel plate or the aluminum alloy plate ranges from 0.6mm to 2.5 mm.

The inner shell 10 and the outer shell 20 are formed by stamping a stainless steel plate or an aluminum alloy plate, so that the forming effect of the pot is ensured, and the heat conducting performance of the pot is also ensured; the stainless steel plate or the aluminum alloy plate with the thickness ranging from 0.6mm to 2.5mm is adopted, so that the strength of the cookware is ensured, and the heat-conducting property of the cookware is also ensured.

Preferably, as shown in FIG. 2, the width of the phase change chamber 30 ranges from 1.5mm to 4 mm; wherein, the width of the phase change chamber 30 is a gap width formed between the outer wall surface of the inner case 10 and the inner wall surface of the outer case 20.

Preferably, as shown in fig. 1, the gap width between the outer wall surface of the inner case 10 and the inner wall surface of the outer case 20 is maintained substantially uniform.

Further preferably, the thickness of the porous foam metal member 40 is adapted to the width of the phase change cavity 30, the average pore diameter of the porous foam metal member 40 is 0.2 mm-0.4 mm, and the porosity is 70% -90%.

Of course, the average pore diameter and porosity of the porous foam metal member 40 are not limited to the specific values, and can be selected according to actual conditions; preferably, the porous foam metal member 40 is made of porous foam copper or porous foam aluminum, and is cut into a strip shape.

The utility model discloses pan subassembly of embodiment is described briefly below.

According to the utility model discloses the pan subassembly includes pan and liquid phase transition working medium, the pan is the pan in the above-mentioned embodiment, and liquid phase transition working medium sets up in phase transition chamber 30.

The pot assembly provided by the above embodiment of the present invention is a coating-free physical non-stick pot adopting a double-layer structure, a vacuum phase change cavity 30 is formed between an inner shell 10 and an outer shell 20 of the pot, a porous foam metal member 40 is arranged at a position close to the upper part in the phase change cavity 30 and is distributed radially, if the porous foam metal member 40 is adhered to the outer wall surface of the inner shell 10, a liquid phase change working medium (such as water, ammonia gas or normal hexane) is injected at a position close to the bottom in the phase change cavity 30, thus heating the bottom of the pot, when the temperature of the bottom of the pot is increased to a certain temperature (such as the temperature is greater than 100 ℃), the liquid working medium close to the bottom in the phase change cavity 30 is vaporized and volatilized into gas, and is transferred to a condensation end close to the upper part in the phase change cavity 30 along a diversion gap 50 between two adjacent porous foam metal members 40, and, the position close to the open end of the cooker is heated, the cooled phase-change working medium is condensed and is converted into liquid again, the liquid is absorbed in pores in the porous foam metal part 40 and flows to the bottom of the phase-change cavity 30 along the porous foam metal part 40 under the action of gravity, then the liquid is heated again and is evaporated, and the heating and condensing process is continuously and circularly repeated, so that the temperature fields of all parts of the whole cooker after being heated for several minutes are basically kept consistent (if the temperature difference can be controlled to be +/-4 ℃), namely the temperature of all parts of the whole cooker is ensured to be in a uniformly distributed state, and finally, the surface of the cooker has a good physical non-sticking effect when cooking is realized; the non-sticky coating on the surface of the cookware is reduced, even the non-sticky coating such as fluororesin is not required to be sprayed on the surface of the cookware, so that the non-sticky effect and the service life of the cookware during cooking are effectively avoided, and the potential safety hazard to the health of a user after the non-sticky coating is absorbed by a human body is effectively avoided, wherein the non-sticky coating is poor in wear resistance, not ideal in binding force, short in service life and easy to fall off.

According to the utility model discloses the pan subassembly, pan in the above-mentioned embodiment, because according to the utility model discloses the pan subassembly is provided with above-mentioned pan, so this pan subassembly is heated evenly, can obviously reduce and paste a pot phenomenon.

Further, the liquid phase change working medium is water, ammonia gas or normal hexane. Thus, the bottom of the pot is heated, when the temperature of the bottom of the pot is increased to a certain temperature (for example, the temperature is greater than 100 ℃), the liquid working medium close to the bottom in the phase change cavity 30 can be vaporized and volatilized into gas and is transmitted to the condensation end close to the upper part in the phase change cavity 30 along the flow guide gap 50 between the two adjacent porous foam metal parts 40, meanwhile, along with the effective transmission of heat, the position close to the opening end of the pot is heated, the cooled phase change working medium is condensed and is converted into liquid again, the liquid is adsorbed in pores in the porous foam metal parts 40 and flows to the bottom of the phase change cavity 30 along the porous foam metal parts 40 under the action of gravity, and then is evaporated after being heated again, the heating and condensation process is continuously and circularly repeated, so that the temperature fields of all parts of the whole pot after being heated for a plurality of minutes are basically kept consistent (for example, the temperature difference can be, the temperature of each part of the whole cooker is ensured to be in an evenly distributed state, and finally the cooker surface has a good physical non-stick effect when cooking.

The kitchen appliance of the embodiment of the present invention is briefly described below.

According to the utility model discloses kitchen utensil can include the pan subassembly of above-mentioned embodiment, because according to the utility model discloses kitchen utensil is provided with above-mentioned pan subassembly, therefore this kitchen utensil can obviously reduce the emergence of sticking with paste pot phenomenon.

According to the utility model discloses kitchen utensil can include electric rice cooker, electric pressure cooker and electromagnetism stove, but not limited to this.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (21)

1. A cookware, comprising:

the phase change device comprises an inner shell and an outer shell connected with the inner shell, wherein a phase change cavity for containing liquid phase change working media is defined between the inner shell and the outer shell; wherein,

and at least one of the outer peripheral surface of the inner shell positioned in the phase change cavity and the inner peripheral surface of the outer shell positioned in the phase change cavity is provided with a non-stick coating.

2. The cookware according to claim 1, wherein said non-stick coating is a water-based fluororesin non-stick coating.

3. The cookware according to claim 2, wherein said water-based fluororesin non-stick coating comprises: the oil-based ink comprises a first bottom oil layer and a first surface oil layer, wherein the thickness of the first bottom oil layer is 10-15 mu m, and the thickness of the first surface oil layer is 15-30 mu m.

4. The pot according to claim 3, wherein the spraying distance of the first bottom oil layer is 15cm-30cm, and the spraying pressure of the first bottom oil layer is 0.2MPa-0.3 MPa.

5. The pot as claimed in claim 3, wherein the spraying distance of the first surface oil layer is 15cm-30cm, and the spraying pressure of the first surface oil layer is 0.15MPa-0.3 MPa.

6. The cookware according to claim 1, wherein said non-stick coating is a ceramic non-stick coating.

7. The cookware according to claim 6, wherein said ceramic non-stick coating comprises: the oil-based ink comprises a second bottom oil layer and a second surface oil layer, wherein the thickness of the second bottom oil layer is 15-25 mu m, and the thickness of the second surface oil layer is 8-25 mu m.

8. The pot according to claim 7, wherein the spraying distance of the second bottom oil layer is 15cm-30cm, and the spraying pressure of the second bottom oil layer is 0.15MPa-0.3 MPa.

9. The pot as claimed in claim 7, wherein the spraying distance of the second surface oil layer is 15cm-30cm, and the spraying pressure of the second surface oil layer is 0.25MPa-0.35 MPa.

10. The cookware according to claim 1, wherein the inner shell inner wall surface of the inner shell comprises a phase change cavity corresponding wall surface corresponding to the phase change cavity, wherein at least a part of the phase change cavity corresponding wall surface is configured as a non-stick layer region.

11. The cookware according to claim 10, wherein said phase change chamber corresponding wall comprises: the non-sticky layer comprises a heat source right area and a heat source non-right area which are suitable for being right opposite to the heat source, wherein the non-sticky layer area comprises the heat source non-right area.

12. The cookware according to claim 11, wherein said heat source facing area is provided with a non-stick layer.

13. The cookware according to claim 12, wherein said phase change chamber corresponding wall comprises: the phase change cavity corresponds to the bottom wall surface and the phase change cavity corresponds to the peripheral wall surface, the phase change cavity corresponds to the bottom wall surface and forms the heat source dead zone, and the phase change cavity corresponds to the peripheral wall surface and forms the heat source non-dead zone.

14. The cookware according to claim 10, wherein said phase change chamber corresponding wall comprises: a first temperature zone and a second temperature zone, the temperature of the first temperature zone being adapted to be greater than the temperature of the second temperature zone when the pot is heated, wherein the non-stick layer zone comprises the second temperature zone.

15. The cookware according to claim 14, wherein said first temperature zone is provided with a non-stick layer.

16. The cookware of claim 15, wherein said phase change cavity corresponding wall comprises: the phase change cavity corresponds bottom wall face and the phase change cavity corresponds week wall face, the phase change cavity corresponds bottom wall face and constitutes first temperature zone, the phase change cavity corresponds week wall face and constitutes the second temperature zone.

17. The cookware according to claim 14, wherein the temperature difference between said first temperature area and said second temperature area is 0 ° -8 °.

18. The cookware according to claim 10, wherein said phase change chamber corresponding wall comprises: the non-sticky layer region comprises the peripheral wall surface corresponding to the phase change cavity, and the non-sticky layer is arranged on the bottom wall surface corresponding to the phase change cavity; or

The phase change cavity corresponding to the wall surface comprises: the bottom wall surface corresponding to the phase change cavity and the peripheral wall surface corresponding to the phase change cavity are both non-sticky layer regions; or

The inner wall surface of the inner shell is integrally configured as the non-adhesive layer region.

19. The cookware according to claim 10, wherein said inner shell is convex spherical-kettle shaped.

20. A cookware assembly, comprising:

a pot in accordance with any of claims 1-19; and

and the liquid phase change working medium is arranged in the phase change cavity.

21. A kitchen appliance comprising the pot assembly of claim 20.