CN207428923U

CN207428923U - Cookware, cookware component and kitchen appliance

Info

Publication number: CN207428923U
Application number: CN201720540117.8U
Authority: CN
Inventors: 李康; 曹达华; 杨玲; 李兴航; 李洪伟; 屈雪平
Original assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date: 2017-05-12
Filing date: 2017-05-12
Publication date: 2018-06-01
Anticipated expiration: 2027-05-12

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, the roughness positioned at the outer circumferential surface of the inner casing of the phase transformation intracavitary is more than the roughness of the inner peripheral surface of the shell positioned at the phase transformation intracavitary.Cookware according to the present utility model, the heat of gaseous state phase-change working substance can more be transferred to inner casing, promote the capacity usage ratio of entire cookware.

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 that the inventor knows, utilize the pan ectotheca to form the cavity, fill liquid phase change working medium in the cavity in order to realize the samming purpose, but this kind of temperature equalization pot technology can reduce the inner shell difference in temperature, but generally to the condensation effect of being heated the phase change working medium that becomes gaseous state, and especially the inner shell is general to the condensation effect of gaseous state phase change working medium, and then influences the heat to the inner shell transmission, and the samming effect is not ideal.

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 inner shell and the shell of this pot can increase the condensation effect to becoming gaseous state phase change working medium after being heated, and the inner shell is better to gaseous state phase change working medium's condensation effect very much, has improved the samming 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; the roughness of the outer peripheral surface of the inner shell positioned in the phase change cavity is larger than that of the inner peripheral surface of the outer shell positioned in the phase change cavity.

According to the utility model discloses a pot, roughness through the inner peripheral surface that sets the roughness of the outer peripheral face with the inner shell to being greater than the shell has increased the condensation effect to becoming gaseous phase transition working medium after being heated, thereby make the phase transition working medium of condensation transmit more heat to the inner shell, and then can make the heat can conduct at the upper and lower part in phase transition chamber more fast, gaseous phase transition working medium's heat can transmit the outer peripheral face to the inner shell more, then heat internal transfer, make more heats be applied to cooking a meal of inside food and boil, the energy utilization who has promoted whole pot.

According to an embodiment of the present invention, the roughness of the outer peripheral surface of the inner shell located in the phase change cavity is 0.1 μm to 3 μm, and the roughness of the inner peripheral surface of the outer shell located in the phase change cavity is 0.1 μm to 3 μm.

According to an embodiment of the present invention, the roughness of the outer peripheral surface of the inner shell located in the phase change cavity is 1 μm to 3 μm, and the roughness of the inner peripheral surface of the outer shell located in the phase change cavity is 0.1 μm to 1 μm.

According to an embodiment of the present invention, the roughness of the outer peripheral surface of the inner shell located in the phase change cavity is 0.5 μm to 3 μm, and the roughness of the inner peripheral surface of the outer shell located in the phase change cavity is 0.1 μm to 0.5 μm.

According to an embodiment of the present invention, the vacuum degree in the phase change chamber is 10^-2Pa-10²Pa。

According to the utility model discloses an embodiment, be provided with a plurality of inner shell bump structures on the outer peripheral face of inner shell, inner shell bump structure is located the phase transition intracavity.

According to an embodiment of the present invention, the plurality of inner shell bump structures are arranged on a plurality of rings spaced apart from each other.

According to the utility model discloses an embodiment, be provided with a plurality of shell bump structures on the outer peripheral face of shell, shell bump structure is located the phase transition intracavity.

According to an embodiment of the present invention, the plurality of housing bump structures are arranged on a plurality of rings spaced apart from each other.

According to the utility model discloses an embodiment, the range density of a plurality of inner shell bump structures is greater than the range density of a plurality of outer shell bump structures.

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 partially enlarged view of a pot according to still another embodiment of the present invention;

fig. 6 is a partially enlarged view of a pot according to still another embodiment of the present invention;

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 structure comprises an inner shell 10, an inner shell inner wall surface 103, an inner shell outer peripheral surface 104, an inner shell salient point structure 11, 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 outer shell salient point structure 21, an outer shell inner peripheral surface 105, a second annular flange 201, a phase change cavity 30, a porous foam metal piece 40, a flow guide gap 50 and a metal pipe 60.

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, the inner shell 10 has an outer peripheral surface, the outer peripheral surface 104 of the inner shell directly contacts with the phase change cavity 30, and the outer peripheral surface 104 of the inner shell forms a part of the phase change cavity 30, and the phase change working medium in the phase change cavity 30 can contact with the outer peripheral surface 104 of the inner shell. The shell 20 has an inner circumferential surface, the inner circumferential surface 105 of the shell can be in direct contact with the phase change cavity 30, the inner circumferential surface 105 of the shell is a part of the phase change cavity 30, and the phase change working medium in the phase change cavity 30 can be in contact with the inner circumferential surface 105 of the shell.

Wherein, the roughness of the outer circumferential surface 104 of the inner shell located in the phase change cavity 30 is larger than the roughness of the inner circumferential surface 105 of the outer shell located in the phase change cavity 30. Because the roughness of the outer peripheral surface 104 of the inner shell is greater than the roughness of the inner peripheral surface 105 of the outer shell, the surface area of the outer peripheral surface 104 of the inner shell is greater than the surface area of the inner peripheral surface 105 of the outer shell, compared with the inner peripheral surface 105 of the outer shell, gaseous phase-change working media can be more easily adsorbed on the outer peripheral surface 104 of the inner shell, the condensation effect is increased, more heat is transferred to the inner shell 10, the temperature rise of the inner shell 10 is better and more obvious, and the temperature rise process is more uniform.

When gaseous phase change working medium rises to the upper portion of phase change chamber 30, gaseous phase change working medium more tends to adhere to on the outer peripheral face 104 of the great inner shell of roughness, then gaseous phase change working medium condensation becomes liquid and gives the outer peripheral face 104 of inner shell with heat transfer, and then the more outer peripheral face 104 of transferring to the inner shell of the heat of gaseous phase change working medium, then heat inward transfer for more heats are applied to the cooking of inside food, have promoted the energy utilization of whole pan.

Because most of the gaseous phase change working medium rises to the upper part of the phase change cavity 30, and the gaseous phase change cavity 30 is more easily attached to the outer peripheral surface 104 of the inner shell with larger roughness, the outer peripheral surface 104 of the inner shell opposite to the upper part of the phase change cavity 30 can absorb more heat, the temperature difference between the bottom of the inner shell 10 and the upper part of the inner shell 10 is reduced, and the inner shell 10 has a good non-stick effect in the cooking process of food.

In some embodiments of the present invention, the roughness of the outer peripheral surface 104 of the inner shell located within the phase change cavity 30 is 0.1 μm to 3 μm; the roughness of the inner circumferential surface 105 of the case located in the phase change chamber 30 is 0.1 μm to 3 μm.

Of course, it is understood that the roughness of the outer circumferential surface 104 of the inner shell in the phase change chamber 30 and the roughness of the inner circumferential surface 105 of the outer shell in the phase change chamber 30 satisfy the above-described relational expressions, but the relationship between the roughness of the outer circumferential surface 104 of the inner shell and the roughness of the inner circumferential surface 105 of the outer shell cannot jump out of the above-described definition, that is, the roughness of the outer circumferential surface 104 of the inner shell is greater than the roughness of the inner circumferential surface 105 of the outer shell.

The outer circumferential surface 104 of the inner shell within the phase change chamber 30 and the inner circumferential surface 105 of the outer shell within the phase change chamber 30 may both be rough surfaces. The rough surface structure can increase the surface area of the outer circumferential surface 104 of the inner shell and/or the inner circumferential surface 105 of the outer shell, and the attachment area of the gaseous phase change working medium is increased, so that the gaseous phase change working medium can more rapidly and uniformly transfer heat to the inner shell 10 and/or the outer shell 20.

The outer circumferential surface 104 of the inner shell and/or the inner circumferential surface 105 of the outer shell are/is provided with rough surfaces, so that heat can be conducted on the upper part and the lower part of the phase change cavity 30 more quickly, heat can be transferred from a high-temperature area to a low-temperature area more quickly, and temperature uniformity of different parts of the inner shell 10 is improved better.

Since the temperature difference between different parts of the inner case 10 is reduced, the food inside the inner case 10 is not easily burnt during cooking.

The inventor finds that the roughness of the outer circumferential surface 104 of the inner shell and/or the roughness of the inner circumferential surface 105 of the outer shell are set to be 0.1-3 μm, so that the circulation process of a phase change working medium in a liquid state-gas state-liquid state in the heating process can be accelerated, the conduction rate of heat in a pot body is further accelerated, the temperature of the inner shell 10 is more uniform, the temperature difference of each part on the inner shell 10 is controlled in a lower range, and the pot has a good non-stick effect in the cooking process of food.

Alternatively, the roughness of the outer circumferential surface 104 of the inner shell in the phase change chamber 30 is 1 μm to 3 μm, and the roughness of the inner circumferential surface 105 of the outer shell in the phase change chamber 30 is 0.1 μm to 1 μm. From this, gaseous phase transition working medium's heat can transmit to inner shell 10 more, then the heat is inside transmission for more heat is applied to the cooking of inside food and boils, thereby promotes the utilization ratio of the energy of whole pan. Meanwhile, the temperature of different parts of the inner shell 10 is more uniform, the temperature difference between the parts on the inner shell 10 is reduced, and the inner shell 10 has a good non-stick effect in the cooking process of food.

Alternatively, the roughness of the outer circumferential surface 104 of the inner shell located in the phase-change chamber 30 is 0.5 μm to 3 μm, and the roughness of the inner circumferential surface 105 of the outer shell located in the phase-change chamber 30 is 0.1 μm to 0.5 μm.

Of course, it will be appreciated that the roughness of the outer circumferential surface 104 of the inner shell and the roughness of the inner circumferential surface 105 of the outer shell may be different. For example, the roughness of the outer circumferential surface 104 of the inner casing may be greater than the roughness of the inner circumferential surface 105 of the outer casing, so that the surface area of the outer circumferential surface 104 of the inner casing is greater than the surface area of the inner circumferential surface 105 of the outer casing, the gaseous phase change working medium can be more easily attached to the outer circumferential surface 104 of the inner casing, and the outer circumferential surface 104 of the inner casing can obtain more heat, so that food in the inner casing 10 can be better cooked.

In some embodiments of the present invention, the vacuum level in the phase change chamber 30 is 10^-2Pa-10²Pa. The vacuum degree in the phase change chamber 30 is controlled to be 10^-2Pa～10²Pa, can reduce the phase transition temperature of liquid phase transition working medium, the circulation vaporization and the condensation of the liquid phase transition working medium of being convenient for to further guarantee the temperature homogeneity on pan bottom and upper portion, thereby guarantee the temperature homogeneity of each position of whole pan. 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.

In other embodiments of the present invention, as shown in fig. 5, a plurality of inner shell bump structures 11 are disposed on the outer peripheral surface 104 of the inner shell, and the inner shell bump structures 11 are located in the phase change cavity 30. Therefore, the surface area of the outer circumferential surface 104 of the inner shell is further increased, the gaseous phase change working medium can be more easily attached to the outer circumferential surface 104 of the inner shell, heat can be more easily transferred in the phase change cavity 30, and heat can be more transferred to the inner shell 10, so that food in the inner shell 10 can be better cooked.

Further, a plurality of inner shell bump structures 11 are arranged in a plurality of rings spaced above and below. Therefore, the arrangement of the inner shell bump structures 11 on the outer peripheral surface 104 of the inner shell is relatively uniform, and the heat transferred to each part of the inner shell 10 is relatively uniform, so that the temperature uniformity of each part of the inner shell 10 is improved.

In some embodiments of the present invention, as shown in fig. 6, not only the outer peripheral surface 104 of the inner shell is provided with a plurality of inner shell bump structures 11, but also the inner peripheral surface 105 of the outer shell is provided with a plurality of outer shell bump structures 21, and the outer shell bump structures 21 are located in the phase change cavity 30. Therefore, the surface area of the inner circumferential surface 105 of the shell is increased, the gaseous phase change working medium can be easily attached to the inner circumferential surface 105 of the shell, the transmission rate of heat in the phase change cavity 30 is improved, and the temperature of each part of the pot is quickly balanced. The promotion of outer shell 20 temperature can effectively play heat retaining effect, reduces inner shell 10 temperature loss, guarantees that inner shell 20 temperature is even, after the heating source stopped to heat, can keep the temperature of inner shell 10 for a longer time very much, and the energy is reduced practices thrift the electric energy.

Further, the plurality of housing bump structures 21 are arranged in a plurality of rings spaced apart up and down. Therefore, the arrangement of the shell salient point structures 21 on the inner peripheral surface 105 of the shell is relatively uniform, and the heat transferred to each part of the shell 20 is relatively uniform, so that the integral temperature uniformity of the cooker is improved, and the cooker has a good non-stick effect in the food cooking process.

Further, as shown in fig. 6, the arrangement density of the plurality of inner shell bump structures 11 is greater than the arrangement density of the plurality of outer shell bump structures 21. Therefore, the surface area of the outer peripheral surface 104 of the inner shell is larger than the surface area of the inner peripheral surface 105 of the outer shell, the outer peripheral surface 104 of the inner shell can absorb more heat of the gaseous phase change working medium, and further more heat can cook food inside the inner shell 10, so that the utilization rate of energy is improved. Meanwhile, the roughness of the outer peripheral surface of the inner shell 10 is larger than that of the inner peripheral surface of the outer shell 20, so that the effect is more prominent and obvious.

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.

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, thereby facilitating the circulation vaporization and condensation of the liquid phase change working medium, further ensuring the temperature uniformity of the bottom and the upper part of the cookware, and ensuring the temperature uniformity of each part of the whole cookware. 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

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,

the roughness of the outer peripheral surface of the inner shell positioned in the phase change cavity is greater than that of the inner peripheral surface of the outer shell positioned in the phase change cavity.

2. The pot according to claim 1, wherein the roughness of the outer circumferential surface of the inner shell located in the phase change cavity is 0.1 μm to 3 μm, and the roughness of the inner circumferential surface of the outer shell located in the phase change cavity is 0.1 μm to 3 μm.

3. The pot according to claim 1, wherein the roughness of the outer circumferential surface of the inner shell located in the phase change cavity is 1 μm to 3 μm, and the roughness of the inner circumferential surface of the outer shell located in the phase change cavity is 0.1 μm to 1 μm.

4. The pot according to claim 1, wherein the roughness of the outer circumferential surface of the inner shell located in the phase change cavity is 0.5 μm to 3 μm, and the roughness of the inner circumferential surface of the outer shell located in the phase change cavity is 0.1 μm to 0.5 μm.

5. The cookware according to claim 1, wherein the degree of vacuum in the phase change chamber is 10^-2Pa-10²Pa。

6. The cookware according to claim 1, wherein a plurality of inner shell protruding point structures are arranged on the outer circumferential surface of the inner shell, and the inner shell protruding point structures are located in the phase change cavity.

7. The cookware according to claim 6, wherein said plurality of inner shell protrusions are arranged in a plurality of rings spaced above and below.

8. The cookware according to claim 6, wherein a plurality of shell salient point structures are arranged on the outer circumferential surface of the shell, and the shell salient point structures are located in the phase change cavity.

9. The cookware according to claim 8, wherein said plurality of shell bump structures are arranged in a plurality of rings spaced above and below.

10. The cookware according to claim 8, wherein the arrangement density of the plurality of inner shell salient point structures is greater than the arrangement density of the plurality of outer shell salient point structures.

11. 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.

12. The cookware according to claim 11, 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.

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

14. The cookware according to claim 13, 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.

15. The cookware according to claim 11, 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.

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

17. The cookware according to claim 16, wherein said phase change chamber 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.

18. The cookware according to claim 15, wherein the temperature difference between said first temperature area and said second temperature area is 0 ° -8 °.

19. The cookware according to claim 11, 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.

20. The cookware according to claim 11, wherein said inner shell is convex spherical-kettle shaped.

21. A cookware assembly, comprising:

a pot in accordance with any of claims 1-20; and

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

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