CN113116119A - Pan and cooking device - Google Patents
Pan and cooking device Download PDFInfo
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- CN113116119A CN113116119A CN201911418714.3A CN201911418714A CN113116119A CN 113116119 A CN113116119 A CN 113116119A CN 201911418714 A CN201911418714 A CN 201911418714A CN 113116119 A CN113116119 A CN 113116119A
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- heat
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- pot body
- working medium
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/002—Construction of cooking-vessels; Methods or processes of manufacturing specially adapted for cooking-vessels
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/02—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
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- Food Science & Technology (AREA)
- Manufacturing & Machinery (AREA)
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Abstract
The invention discloses a pot and a cooking device, and relates to the technical field of cooking, wherein the pot comprises an outer pot body, an inner pot body and a liquid phase change working medium accommodated in a bottom cavity of an interlayer cavity between the inner pot body and the outer pot body, the liquid phase change working medium in a non-heating state has a phase change working medium liquid level height, the pot wall of the outer pot body comprises a heat conduction layer, and the heat conduction layer extends to the position above the phase change working medium liquid level height from the lower direction of the phase change working medium liquid level height. The height difference between the top end of the heat conduction layer and the height of the phase change working medium liquid level can be not less than 10 mm; and/or the top end of the heat conducting layer can be not less than 20% of the height of the cookware; and/or the thermal conductivity K of the thermally conductive layer may be no less than 50W/mk, preferably no more than 100W/mk. The cooker and the cooking device are uniformly heated integrally, have high heating efficiency, and can avoid the phenomenon that the cooker has poor cooking effect due to nonuniform heating and avoid the service life of heating components damaged due to local overheating of the cooker.
Description
Technical Field
The invention relates to the technical field of cooking, in particular to a cooker and a cooking device.
Background
At present, an electric cooker or an electric pressure cooker usually uses electromagnetic heating or hot plate heating and is limited by the structures and the sizes of a heating unit and a heated unit, and the heated surface of an inner pot of the cooking pot is mainly concentrated in the bottom area of the wall of the inner pot, so that the whole inner pot is heated unevenly. In order to make the pan heated evenly, the pan is generally set as a double-layer pan and loaded with a liquid phase change working medium in an interlayer cavity between an inner pan and an outer pan, after the outer pan is heated, heat is conducted to the liquid phase change working medium to enable the liquid phase change working medium to be heated and vaporized, then the gaseous phase change working medium is contacted with the inner pan to transmit the heat to the inner pan, and the inner pan is heated to raise the temperature so as to cook food materials in the inner pan. Although the purpose of temperature equalization can be realized by utilizing the double-layer pot, the problem of local overheating is easy to occur in the outer pot of the pot, so that the heat conduction efficiency of the pot is influenced, and even the service life of a heating element is damaged.
Disclosure of Invention
The invention aims to provide a novel pot and a cooking device, the pot is reasonable in structure and high in heat conduction efficiency, and the service life of a heating component can be prevented from being damaged due to local overheating of the pot.
In order to achieve the above object, the present invention provides a pot including:
the pot wall of the outer pot body comprises a heat conduction layer;
the inner pot body is embedded in the outer pot body; and
the liquid phase change working medium in a non-heating state is accommodated in a bottom cavity of the interlayer cavity between the inner pot body and the outer pot body and has a phase change working medium liquid level height;
the heat conducting layer extends from the lower part of the liquid level height of the phase change working medium to the upper part of the liquid level height of the phase change working medium. So, counterpoint the setting with heat-conducting layer and liquid phase transition working medium, can transmit the heat of the outer pot body to liquid phase transition working medium through the heat-conducting layer high efficiency to can take away a large amount of heats when accelerating liquid phase transition working medium heat absorption phase transition and liquid phase transition working medium vaporization phase transition, not only can further improve the heating efficiency and the samming effect of pan, also can prevent that the outer pot body from damaging the life of heating components and parts or producing the safety problem because of local overheat simultaneously.
Optionally, the height difference between the top end of the heat conducting layer and the liquid level height of the phase-change working medium can be not less than 10 mm; and/or the presence of a gas in the gas,
the height of the top end of the heat conduction layer can be not less than 20% of the height of the cookware; and/or the presence of a gas in the gas,
the thermal conductivity K of the thermally conductive layer may be not less than 50W/mk, preferably not more than 100W/mk.
Further, the heat conductive layer may also include a plurality of vertical heat conductive layers extending upward from a top end of the heat conductive layer; and/or the presence of a gas in the gas,
the heat conducting layer completely covers the pot wall of the outer pot body above the liquid level height of the phase change working medium.
Furthermore, the heat conducting layer can fully cover the pot wall of the outer pot body below the liquid level of the phase change working medium;
and/or the heat conduction layer can extend along the circumferential direction and form an annular heat conduction layer, and the bottom end of the annular heat conduction layer is not higher than the liquid level height of the phase-change working medium.
In some embodiments, the wall of the outer pot may comprise at least a base layer element and a heat conducting layer element consisting of the heat conducting layer, wherein,
the heat conduction layer unit comprises a heat conduction plate structure as the heat conduction layer, the heat conduction plate structure is laminated and compounded with the base layer unit,
and/or the heat conduction layer unit comprises a heat conduction composite coating serving as the heat conduction layer, and the heat conduction composite coating is positioned on the surface of the pot wall of the outer pot body.
Alternatively, the substrate layer unit may comprise a magnetically permeable sheet material having a pure iron material, a martensitic stainless steel material or a ferritic stainless steel material; and/or the presence of a gas in the gas,
the heat-conducting plate structure can comprise one or a plurality of layers of laminated composite heat-conducting plates, and the heat-conducting plate is at least one of an aluminum plate, an aluminum alloy plate, a copper alloy plate, a silver plate and a silver alloy plate; and/or the presence of a gas in the gas,
the material of the heat-conducting composite coating can be at least one of a metal material and a ceramic material, wherein the metal material is aluminum and/or copper, and the ceramic material is aluminum nitride and/or silicon carbide.
Further, the thermal conductivity of the heat-conducting composite coating can be 3-20 times that of the base body layer unit; and/or the presence of a gas in the gas,
the ratio of the coverage area S1 of the heat-conducting composite coating to the surface area S of the pot wall of the outer pot body satisfies the following conditions: S1/S is more than or equal to 10% and less than or equal to 100%; and/or the presence of a gas in the gas,
the ratio of the thickness H1 of the heat-conducting composite coating to the thickness H2 of the matrix layer unit satisfies the following conditions: H1/H2 is more than or equal to 2% and less than or equal to 50%.
Furthermore, the pot wall of the outer pot body can also comprise:
the corrosion-resistant layer unit is positioned on the innermost layer or the secondary inner layer of the pot wall of the outer pot body; and/or the presence of a gas in the gas,
and the high-temperature-resistant layer unit is positioned on the outermost layer or the secondary outer layer of the pot wall of the outer pot body.
Alternatively, the corrosion-resistant layer unit may include a stainless steel plate, and the high-temperature-resistant layer unit includes a titanium plate or a titanium alloy plate.
Furthermore, the total thickness of the pot wall of the outer pot body can be 0.5 mm-5 mm.
Further, the spraying process of the thermally conductive composite coating may be at least one of a thermal spraying process and a cold spraying process; wherein the thermal spraying process is at least one of a supersonic spraying process, a plasma spraying process and an electric arc spraying process.
Optionally, the heat-conducting composite coating is located on the innermost layer of the pot wall of the outer pot body and is formed as a heat-conducting material sprayed layer with surface roughness Rz, and Rz meets the following conditions: 1 μm-Rz-100 μm, preferably 1 μm-Rz-25 μm.
Correspondingly, the invention further provides a cooking device which comprises the cooker.
Optionally, the cooking device may further include a temperature measuring device, and the temperature measuring device is disposed in alignment with the pot wall covered with the heat conducting layer and is configured to sense the temperature of the pot wall at the pot wall.
The pot and the cooking device comprise an outer pot body, an inner pot body embedded in the outer pot body and a liquid phase change working medium accommodated in a bottom cavity of an interlayer cavity between the inner pot body and the outer pot body, wherein the liquid phase change working medium in a non-heating state has a phase change working medium liquid level height, the liquid phase change working medium can be vaporized when being heated, and formed gas can rapidly spread in the interlayer cavity, so that the temperature of the whole pot is driven to rise, the temperature uniformity of each point of the pot is achieved, and the good cooking effect of the pot is ensured; but the heating end of the cooker heated by the heat source is positioned on the outer cooker body and the heating end of the outer cooker body is generally positioned at the lower part, because of the existence of the interlayer cavity, the outer pot body is easy to generate the problem of local overheating, thereby not only influencing the heat conduction efficiency of the pot, but also even damaging the service life of heating components, therefore, the pot wall of the outer pot body of the pot comprises the heat conduction layer, the heat conducting layer extends from the lower direction of the liquid level height of the phase change working medium to the upper direction of the liquid level height of the phase change working medium, so that the heat conducting layer and the liquid phase change working medium are arranged in an alignment way, the heat of the heating end of the outer pot body can be quickly and efficiently transferred to the liquid phase-change working medium through the heat conducting layer, so as to accelerate the heat absorption phase change of the liquid phase change working medium and bring away a large amount of heat when the liquid phase change working medium is vaporized for phase change, thereby not only further improving the heat conduction efficiency, meanwhile, the outer pot body can be prevented from damaging the service life of heating elements or generating safety problems due to local overheating.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 illustrates a schematic structural view of a cookware in accordance with an embodiment of the present invention;
FIG. 2 is an enlarged partial view of FIG. 1 showing a schematic structural view of the outer pot according to the first embodiment of the present invention, wherein the outer pot comprises a base layer unit and a layer of heat conductive sheet material;
FIG. 3 is an enlarged partial view of FIG. 1, showing a schematic structural view of an outer pot according to a second embodiment of the present invention, wherein the outer pot comprises a base layer unit and two layers of heat conductive plates;
FIG. 4 is a partially enlarged view of FIG. 1, which shows a schematic structural view of an outer pot body according to a third embodiment of the invention, wherein the outer pot body comprises a base layer unit, a three-layer heat-conducting plate and a corrosion-resistant layer unit;
FIG. 5 is an enlarged partial view of FIG. 1 showing a schematic structural view of an outer pot according to a fourth embodiment of the present invention, wherein the outer pot comprises a base layer unit and a thermally conductive composite coating.
Description of the reference numerals
100 cooker
1 outer pot body 11 base layer unit
12 heat conduction plate 13 corrosion-resistant layer unit
14 heat-conducting composite coating 2 inner pot body
3 liquid phase change working medium
Detailed Description
The following detailed description of specific embodiments of the invention refers to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and explanatory of the invention and are not restrictive thereof.
The pot 100 according to the present invention is described below with reference to the accompanying drawings, which has a reasonable structure and high heat conduction efficiency, and can prevent the pot 100 from damaging the heating components due to local overheating.
Referring to fig. 1 to 5, the invention provides a pot 100, the pot 100 comprises an outer pot body 1, an inner pot body 2 and a liquid phase change working medium 3 accommodated in a bottom cavity of an interlayer cavity between the inner pot body 2 and the outer pot body 1, the inner pot body 2 is embedded in the outer pot body 1, the liquid phase change working medium 3 in a non-heating state has a phase change working medium liquid level height, the pot wall of the outer pot body 1 comprises a heat conduction layer, and the heat conduction layer extends from the lower direction of the phase change working medium liquid level height to the upper side of the phase change working medium liquid level height.
The temperature difference of different parts in the existing cooker is large, in order to avoid the phenomenon that some parts of food materials are burnt due to excessive heating and the phenomenon that some parts of food materials are clamped due to less heating and insufficient heating, the cooker 100 comprises an outer cooker body 1, an inner cooker body 2 embedded in the outer cooker body 1 and a liquid phase change working medium 3 accommodated in a bottom cavity of an interlayer cavity between the inner cooker body 2 and the outer cooker body 1, the liquid phase change working medium 3 can be vaporized when being heated to reach the phase change temperature and can be rapidly transferred in the interlayer cavity through rapid gas-liquid phase change circulation, the formed gas can rapidly spread in the interlayer cavity and rapidly transfer the heat to the inner cooker body 2 to uniformly heat the inner cooker body 2, meanwhile, the gas phase working medium is cooled to be converted into the liquid phase working medium and rapidly flows back to the heated end of the outer cooker body 1, as long as a heat source is continuously heated, the process can be continuously and circularly carried out continuously, so that the heat is transferred and uniformly distributed in the cooker 100, the temperature uniformity of each point of the pot 100 is achieved.
Although utilize outer pot body 1 and interior pot body 2 to form the intermediate layer chamber, it can realize the samming purpose to fill liquid phase transition working medium in the intermediate layer chamber, but this kind of pan 100 is located outer pot body 1 by the heated end of heat source heating and the heated end of outer pot body 1 generally is located the lower part, because the existence in intermediate layer chamber, the heat of outer pot body 1 need through liquid phase transition working medium 3 indirect transmission to interior pot body 2 in the culinary art chamber, if the heat of outer pot body 1 can not transmit to interior pot body 2's culinary art chamber through liquid phase transition working medium 3 high-efficiently, local overheated problem appears easily in outer pot body 1 this moment, not only influence the heat conduction efficiency of pan 100 from this, can also harm heating element's life even. For the pot 100 needing electromagnetic heating, a magnetic conductive metal capable of electromagnetic induction is generally arranged on the pot wall of the outer pot body 1. Based on the limitation of the magnetic induction coil structure, the heat generated by the local metal material of the pot wall of the outer pot body 1 through the collision of electron eddy current and current carrier is difficult to disperse in a short time, and the heat concentration phenomenon is more obvious when the pot 100 is provided with a sandwich cavity.
Therefore, the pot wall of the outer pot body 1 of the pot 100 is provided with the heat conduction layer, and the heat conduction layer extends from the lower direction of the liquid level height of the phase change working medium to the upper direction of the liquid level height of the phase change working medium, so that the heat conduction layer and the liquid phase change working medium 3 are arranged in a contraposition mode, heat at the heating end of the outer pot body 1 can be quickly and efficiently transferred to the liquid phase change working medium 3 through the heat conduction layer, heat absorption phase change of the liquid phase change working medium 3 is accelerated, and a large amount of heat can be taken away when the liquid phase change working medium 3 is vaporized and phase changed, so that the heat conduction efficiency of the pot 100 can be further improved, and the problem that the service life of.
The invention correspondingly provides a cooking device which comprises the cooker 100. Specifically, the cooking apparatus further includes a heating element for heating the outer pot body 1 of the pot 100, and generally, the heating element heats the lower portion of the outer pot body 1. Wherein, the heating element can be selected from an electrothermal tube, an electrothermal film, a PTC heating sheet or an electromagnetic induction heating coil. In addition, the cooking device may be an electric cooker, an electric pressure cooker, or other cooking devices for cooking food materials, and the present invention is not limited thereto. Of course, the pot 100 of the present invention may be a pot heated by a hot plate, besides the above heating method, and the present invention is not limited thereto. Wherein, the position relatively close to the center of the pot 100 is defined as "inner", and the position relatively close to the center of the pot 100 is defined as "outer".
In addition, the cooking device also comprises a temperature measuring device, wherein the temperature measuring device is arranged in an alignment mode with the pot wall covered with the heat conducting layer and is used for sensing the temperature of the pot wall at the position of the pot wall, namely the temperature measuring device is used for sensing the temperature of the pot wall covered with the heat conducting layer. So, when culinary art, heating components and parts heat liquid phase change working medium 3 in the bottom chamber of intermediate layer chamber through the pot wall of the outer pot body 1, the heat-conducting layer of the pot wall of the outer pot body 1 sets up with liquid phase change working medium 3 counterpoint, the heat accessible that heating components and parts produced has the pot wall of heat-conducting layer to transmit inwards more fast high-efficiently, the pot wall temperature that covers the pot wall that covers the heat-conducting layer rises fast, temperature measuring device and the pot wall position that covers the heat-conducting layer are counterpointed and are set up, when temperature measuring device sensing to the pot wall temperature that covers the pot wall position that covers the heat-conducting layer surpassed and predetermine the temperature, accessible control circuit control heating components and parts stop heating, thereby prevent that outer pot body 1 from damaging the life of heating components and parts or.
The heat conducting layer can be in a plate form, a coating form and the like, the plate form can be manufactured through a hot pressing process and the like, and the coating form can be manufactured through a spraying process and the like. The thermally conductive layer may comprise one or more layers of a sheet material of high thermal conductivity; alternatively, one or more high thermal conductivity coatings may also be included; alternatively, one or more layers of high thermal conductivity sheet material and one or more layers of high thermal conductivity coating, etc. may be included. The high-heat-conductivity material can adopt one or more high-heat-conductivity materials, and the high-heat-conductivity material can be a metal material or a non-metal material. In addition, the heat conduction layer can be positioned on the outer layer of the outer pot body 1, or can be positioned on the inner layer of the outer pot body 1, or can also be positioned on the outer layer and the inner layer of the outer pot body 1 at the same time, and the like, and the combination mode and the combination sequence of the multiple layers of high-heat-conductivity material layers can also be various, and the invention is not limited to the mode. In addition, the liquid phase-change working medium 3 can be water, an ethanol aqueous solution or an ether aqueous solution, so that the safety of a user is facilitated, the user can sanitarily use the cooker 100 to cook food materials, and meanwhile, the heating rate of the food materials is increased due to the fact that the boiling point of water is high.
In order to prevent the liquid phase change working medium 3 from escaping from the sandwich cavity after vaporizing into the gaseous phase change working medium, the sandwich cavity is preferably provided as a closed cavity. In order to reduce the vaporization temperature of the liquid phase-change working medium 3 and further improve the heat transfer efficiency of the pot, the interlayer cavity is preferably set to be a vacuum cavity (i.e. the pressure in the interlayer cavity is lower than one atmospheric pressure).
Optionally, in order to enable the heat generated by the heating element to be more rapidly transmitted to the liquid phase-change working medium 3, the thermal conductivity K of the heat conduction layer may be set to be not less than 50W/mk, and preferably to be not less than 100W/mk, so that the heat generated by the heating element can be more rapidly transmitted to the liquid phase-change working medium 3 through the heat conduction layer with high thermal conductivity, and thus, the service life of the heating element can be prevented from being damaged or safety problems can be prevented from being caused due to local overheating of the outer pot body 1.
Further, the height on the top of heat-conducting layer can be no less than 20% of the height of pan 100, or, the difference in height between the top of heat-conducting layer and the height of phase change working medium liquid level is no less than 10mm, so, even if pan 100 does not keep flat under the condition or under the state that liquid phase change working medium 3 heats the boiling, also can guarantee as far as possible that heat-conducting layer and liquid phase change working medium 3 have sufficient counterpoint to set up the area, thereby guarantee that the heat that heating element produced transmits to liquid phase change working medium 3 as far as possible, accelerate liquid phase change working medium 3 heat absorption phase change and can take away a large amount of heat through the vaporization phase change of liquid. Wherein, the height of the pot 100 is the distance between the plane of the circumferential top edge of the pot 100 and the plane of the circumferential bottom edge of the pot 100; the heat conducting layer comprises a top end and a bottom end along the up-down direction, and the height of the top end of the heat conducting layer is the distance from the top end of the heat conducting layer to the plane where the circumferential bottom edge of the cookware 100 is located; the height of the liquid level of the phase change working medium is the distance between the liquid level of the liquid phase change working medium and the plane where the circumferential bottom edge of the cookware 100 is located.
In some embodiments, the heat conducting layer completely covers the pot wall of the outer pot body 1 above the liquid level of the phase change working medium, so that the locally overhigh heat of the outer pot body 1 can be quickly diffused to other positions of the non-heating end. However, the more the area of the heat conducting layer covered on the outer pot body 1 is, the more heat is transferred to the wall of the outer pot body 1 correspondingly, so that more heat is diffused and lost through the outer pot body 1. Thus, to improve the thermal efficiency of the pot 100, the heat conductive layer also includes a plurality of vertical heat conductive layers (not shown) extending upwardly from the top end of the heat conductive layer. Of course, the manner in which the top end of the heat conductive layer extends upward may be varied, and the invention is not limited thereto.
In other embodiments, the heat-conducting layer can extend and form into cyclic annular heat-conducting layer along circumference, and the bottom of cyclic annular heat-conducting layer is not higher than phase transition working medium liquid level height, and of course, the heat-conducting layer also can cover the pot wall that is located the outer pot body 1 of phase transition working medium liquid level height below completely, so, can transmit the heat of the bottom heating end of the outer pot body 1 for liquid phase transition working medium 3 to the at utmost to promote the heating efficiency of pan better, and can prevent outer pot body 1 local overheat better.
Optionally, the wall of the outer pot 1 comprises at least a base layer unit 11 and a heat conducting layer unit consisting of a heat conducting layer. As shown in fig. 2 to 4, the heat conducting layer unit may include a heat conducting plate structure as a heat conducting layer, and the heat conducting plate structure is laminated and compounded with the base layer unit 11; alternatively, as shown in fig. 5, the heat conducting layer unit can comprise a heat conducting composite coating 14 as the heat conducting layer, and the heat conducting composite coating 14 is positioned on the wall surface of the outer pot body 1; or, the heat conduction layer unit can also simultaneously comprise a heat conduction plate structure as the heat conduction layer and a heat conduction composite coating 14 as the heat conduction layer, the heat conduction plate structure is laminated and compounded with the base layer unit 11, and the heat conduction composite coating 14 is positioned on the surface of the pot wall of the outer pot body 1. The heat-conducting composite coating 14 can be positioned on the outer surface of the wall of the outer pot body 1, or the heat-conducting composite coating 14 can be positioned on the inner surface of the wall of the outer pot body 1, or the heat-conducting composite coating 14 can be positioned on both the outer surface and the inner surface of the wall of the outer pot body 1. Further, the thermally conductive composite coating 14 may be one or more layers of composite or the like, as the present invention is not limited thereto.
The heat conductive plate structure may include a layer of heat conductive plate 12, or the heat conductive plate structure may include a plurality of layers of heat conductive plates 12 laminated and combined together. As shown in fig. 2, the wall of the outer pot 1 may comprise a base layer unit 11 and one layer of heat conducting plate 12, and as shown in fig. 3, the wall of the outer pot 1 may comprise a base layer unit 11 and two layers of heat conducting plate 12. Of course, the wall of the outer pot 1 may also comprise the base layer unit 11 and further layers of heat conducting plates 12, to which the invention is not limited. The heat conductive plate 12 may include at least one of an aluminum plate, an aluminum alloy plate, a copper alloy plate, a silver plate, and a silver alloy plate. In order to make the outer pot body 1 have more excellent heat conduction performance, the heat can be diffused and transferred more quickly, the heating efficiency of the outer pot body 1 is improved, the outer pot body 1 is prevented from damaging the service life of the pot 100 and the heating components or generating safety problems due to local overheating, and the heat conductivity K of the heat conducting plate material 12 can be set to be not less than 200W/mk.
In order to make the pot 100 suitable for electromagnetic heating, the base layer unit 11 may comprise a magnetic conductive material, and in order to make the pot 100 have a good electromagnetic heating effect, the base layer unit 11 may be located as close as possible to the outer layer of the outer pot body 1, for example, the base layer unit 11 may be located at the outermost layer or the next outer layer of the outer pot body 1. The base layer unit 11 may include a material having magnetic permeability, such as an iron-based material, which may be one of pure iron, martensitic stainless steel, and ferritic stainless steel.
The material of the heat-conducting composite coating 14 may be a metal material, a ceramic material, or both a metal material and a ceramic material, or of course, other materials with high heat conductivity, etc.; the metal material can be aluminum, copper, aluminum, copper and the like; the ceramic material may be aluminum nitride, silicon carbide, or both aluminum nitride and silicon carbide, and of course, the metal material and the ceramic material may be other materials with high thermal conductivity besides the above materials, and the invention is not limited thereto.
Further, in order to improve the corrosion resistance of the outer pot body 1 and prevent the liquid phase change working medium 3 from corroding the outer pot body 1, the wall of the outer pot body 1 may further include a corrosion-resistant layer unit 13, as shown in fig. 4, the corrosion-resistant layer unit 13 may be located at the innermost layer of the wall of the outer pot body 1, that is, the layer directly contacting the liquid phase change working medium 3. The corrosion-resistant layer unit 13 may include a plate having corrosion resistance, such as a stainless steel plate.
Furthermore, in order to prevent the outer pot body 1 from being damaged by the high temperature instantaneously generated by the heating element or the high temperature locally generated by the heating element, the wall of the outer pot body 1 may further include a high temperature resistant layer unit, and the melting point of the high temperature resistant layer unit may be not less than 1500 ℃ and may be located at the outermost layer of the wall of the outer pot body 1. The high temperature resistant layer unit may include a plate having high temperature resistance, such as a titanium plate layer or a titanium alloy plate.
Further, in order to balance the structural strength and the production cost of the outer pot body 1 and ensure the sufficient heat-conducting property of the outer pot body 1, the total thickness of the pot wall of the outer pot body 1 can be set to be 0.5 mm-5 mm.
Optionally, in order to make the outer pot body 1 have excellent heat conduction performance, the heat of the outer pot body 1 can be rapidly diffused and transferred, the heating efficiency of the outer pot body 1 is improved, the heat conductivity of the heat-conducting composite coating 14 needs to be high enough, and therefore the heat conductivity of the heat-conducting composite coating 14 can be set to be 3-20 times of that of the base layer unit 11.
As can be understood by those skilled in the art, the larger the covering area S1 of the heat-conducting composite coating 14 on the wall of the outer pot 1, the more the heat of the outer pot 1 can be diffused and transferred, the more it can prevent the outer pot 1 from overheating locally. Therefore, the ratio of the coverage area S1 of the heat-conducting composite coating 14 to the surface area S of the pot wall of the outer pot body 1 can satisfy: S1/S is more than or equal to 10% and less than or equal to 100%. Wherein the surface area S of the pot wall of the outer pot body 1 is the sum of the areas of the inner surface of the pot wall and the outer surface of the pot wall of the outer pot body 1.
Further, in order to ensure sufficient thermal conductivity of the thermal conductive composite coating 14, the thickness H1 of the thermal conductive composite coating 14 may not be too thin, but the thickness H1 of the thermal conductive composite coating 14 may not be too thick due to relatively poor mechanical properties of the thermal conductive composite coating 14. Therefore, in order to balance the heat-conducting performance and the mechanical performance of the outer pot body 1, the ratio of the thickness H1 of the heat-conducting composite coating 14 to the thickness H2 of the base layer unit 11 can satisfy the following conditions: H1/H2 is more than or equal to 2% and less than or equal to 50%.
Optionally, the spraying process of the heat-conducting composite coating 14 may be a thermal spraying process, a cold spraying process, or both a thermal spraying process and a cold spraying process; the thermal spraying process is at least one of a supersonic spraying process, a plasma spraying process and an electric arc spraying process, and of course, the spraying process of the heat-conducting composite coating 14 may be other processes besides the above processes, which is the prior art and is not described in detail herein. Furthermore, the surface of the heat conducting layer formed by the spray coating process may have a roughness Rz of 1 to 100 microns, preferably 1 to 25 microns. Thus, when the heat-conducting composite coating 14 is formed into a heat-conducting material spraying layer with surface roughness Rz and is positioned on the innermost layer of the pot wall of the outer pot body 1, the heat-conducting layer positioned below the liquid level of the liquid phase-change working medium can adsorb the liquid phase-change working medium 3 and increase the heat exchange area between the heat-conducting layer and the liquid phase-change working medium 3, so that heat can be conducted more quickly; the heat-conducting layer that is located liquid phase change working medium liquid level top can adsorb and the condensation to the phase change working medium of gaseous state, and be favorable to the liquid phase change working medium backward flow after the condensation to the heating end position of the outer pot body 1 bottom, can prevent that the bad condition of the heating end position that gaseous phase change working medium can not in time condensation backward flow to the bottom, thereby accelerate the backward flow rate of liquid phase change working medium 3 and accelerate the gas-liquid phase change circulation conversion rate of liquid phase change working medium 3 in the intermediate layer chamber, promote pan 100's heat-conduction efficiency.
In summary, the pot wall of the outer pot body 1 of the pot 100 of the present invention includes the heat conducting layer, and the heat conducting layer extends from the lower direction of the liquid level height of the phase change working medium to the upper direction of the liquid level height of the phase change working medium, so that the heat conducting layer and the liquid phase change working medium 3 are arranged in an opposite position, and the heat at the heating end of the outer pot body 1 can be quickly transferred to the liquid phase change working medium 3 through the heat conducting layer, so as to accelerate the heat absorption phase change of the liquid phase change working medium 3 and bring away a large amount of heat when the liquid phase change working medium 3 is vaporized and phase changed, which not only can further improve the heating efficiency, but also can prevent the outer pot. Wherein, the heat conducting layer can be in a plate form, a coating form and the like; in order to improve the corrosion resistance of the outer pot body 1 and prevent the liquid phase change working medium 3 from corroding the outer pot body 1, the composite plate structure of the outer pot body 1 can also comprise a corrosion-resistant layer unit 13; in order to prevent the outer pot body 1 from being damaged by the high temperature instantaneously generated by the heating element or the high temperature locally generated by the heating element, the composite plate structure of the outer pot body 1 can also comprise a high temperature resistant layer unit.
In the description of the present invention, it is to be understood that the terms "central," "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 are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the 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," "secured," and the like are to be construed broadly and can, 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
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 above, 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 within the scope of the present invention.
Claims (14)
1. A pot, characterized in that, the pot includes:
the pot wall of the outer pot body comprises a heat conduction layer;
the inner pot body is embedded in the outer pot body; and
the liquid phase change working medium in a non-heating state is accommodated in a bottom cavity of the interlayer cavity between the inner pot body and the outer pot body and has a phase change working medium liquid level height;
the heat conducting layer extends from the lower part of the liquid level height of the phase change working medium to the upper part of the liquid level height of the phase change working medium.
2. The cookware according to claim 1, wherein the height difference between the top end of the heat conducting layer and the liquid level height of the phase-change working medium is not less than 10 mm; and/or the presence of a gas in the gas,
the height of the top end of the heat conduction layer is not less than 20% of the height of the cookware; and/or the presence of a gas in the gas,
the heat conduction layer has a thermal conductivity K of not less than 50W/mk, preferably not less than 100W/mk.
3. The cookware according to claim 1, wherein said heat conductive layer further comprises a plurality of vertical heat conductive layers extending upwardly from a top end of said heat conductive layer; and/or the presence of a gas in the gas,
the heat conducting layer completely covers the pot wall of the outer pot body above the liquid level height of the phase change working medium.
4. The cookware according to claim 1, wherein the heat conducting layer covers the wall of the outer pot below the level of the phase change medium;
and/or the heat conduction layer extends along the circumferential direction and forms an annular heat conduction layer, and the bottom end of the annular heat conduction layer is not higher than the liquid level height of the phase-change working medium.
5. The cookware according to any of claims 1 to 4, wherein the wall of the outer pot comprises at least a base layer unit and a heat conducting layer unit consisting of said heat conducting layer, wherein,
the heat conduction layer unit comprises a heat conduction plate structure as the heat conduction layer, the heat conduction plate structure is laminated and compounded with the base layer unit,
and/or the heat conduction layer unit comprises a heat conduction composite coating serving as the heat conduction layer, and the heat conduction composite coating is positioned on the surface of the pot wall of the outer pot body.
6. The cookware according to claim 5, wherein said base layer unit comprises a magnetically permeable sheet material having a pure iron material, a martensitic stainless steel material or a ferritic stainless steel material; and/or the presence of a gas in the gas,
the heat-conducting plate structure comprises one or a plurality of layers of laminated composite heat-conducting plates, and the heat-conducting plate is at least one of an aluminum plate, an aluminum alloy plate, a copper alloy plate, a silver plate and a silver alloy plate; and/or the presence of a gas in the gas,
the heat-conducting composite coating is made of at least one of a metal material and a ceramic material, wherein the metal material is aluminum and/or copper, and the ceramic material is aluminum nitride and/or silicon carbide.
7. The cookware according to claim 5, wherein the thermal conductivity of the heat conductive composite coating is 3-20 times that of the base layer unit; and/or the presence of a gas in the gas,
the ratio of the coverage area S1 of the heat-conducting composite coating to the surface area S of the pot wall of the outer pot body satisfies the following conditions: S1/S is more than or equal to 10% and less than or equal to 100%; and/or the presence of a gas in the gas,
the ratio of the thickness H1 of the heat-conducting composite coating to the thickness H2 of the matrix layer unit satisfies the following conditions: H1/H2 is more than or equal to 2% and less than or equal to 50%.
8. The pot as claimed in claim 5, wherein the pot wall of the outer pot body further comprises:
the corrosion-resistant layer unit is positioned on the innermost layer or the secondary inner layer of the pot wall of the outer pot body; and/or the presence of a gas in the gas,
and the high-temperature-resistant layer unit is positioned on the outermost layer or the secondary outer layer of the pot wall of the outer pot body.
9. The pot according to claim 8, wherein the corrosion-resistant layer unit comprises a stainless steel plate, and the high-temperature-resistant layer unit comprises a titanium plate or a titanium alloy plate.
10. The pot as claimed in claim 5, wherein the total thickness of the pot wall of the outer pot body is 0.5mm to 5 mm.
11. The cookware according to claim 5, wherein the spraying process of the thermally conductive composite coating is at least one of a thermal spraying process and a cold spraying process; wherein the thermal spraying process is at least one of a supersonic spraying process, a plasma spraying process and an electric arc spraying process.
12. The cookware according to claim 5, wherein said heat conductive composite coating is located at the innermost layer of the wall of said outer pot and is formed as a sprayed layer of heat conductive material with a surface roughness Rz that satisfies: 1 μm-Rz-100 μm, preferably 1 μm-Rz-25 μm.
13. A cooking device, characterized in that it comprises a pot according to any of claims 1 to 12.
14. The cooking device of claim 13, further comprising a temperature measuring device positioned in alignment with the pot wall location covered with the heat conductive layer and configured to sense a pot wall temperature at the pot wall location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911418714.3A CN113116119A (en) | 2019-12-31 | 2019-12-31 | Pan and cooking device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911418714.3A CN113116119A (en) | 2019-12-31 | 2019-12-31 | Pan and cooking device |
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| CN113116119A true CN113116119A (en) | 2021-07-16 |
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| CN201911418714.3A Pending CN113116119A (en) | 2019-12-31 | 2019-12-31 | Pan and cooking device |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5643485A (en) * | 1988-04-15 | 1997-07-01 | Midwest Research Institute | Cooking utensil with improved heat retention |
| DE20312845U1 (en) * | 2003-08-20 | 2003-12-04 | Schabalin, Nathalie | Double-walled receptacle for hot drinks and suchlike has inner wall made from heat conducting material, and outer wall made from material not conducting heat, and cavity between inner and outer walls is filled with liquid via connector |
| CN204813456U (en) * | 2015-08-07 | 2015-12-02 | 浙江苏泊尔家电制造有限公司 | A interior pot and ware of cooking for cooking ware |
| CN205267875U (en) * | 2016-01-22 | 2016-06-01 | 浙江苏泊尔家电制造有限公司 | Inner pot for cooking utensil and cooking utensil |
| CN205285980U (en) * | 2015-09-16 | 2016-06-08 | 浙江绍兴苏泊尔生活电器有限公司 | Inner pot for rice cooker and rice cooker |
| CN205306734U (en) * | 2016-01-22 | 2016-06-15 | 浙江苏泊尔家电制造有限公司 | Inner pot for cooking utensil and cooking utensil |
| CN205322127U (en) * | 2016-01-22 | 2016-06-22 | 浙江苏泊尔家电制造有限公司 | Inner pot for cooking utensil and cooking utensil |
| CN205359175U (en) * | 2016-01-22 | 2016-07-06 | 浙江苏泊尔家电制造有限公司 | Inner pot for cooking utensil and cooking utensil |
| CN208286822U (en) * | 2017-08-21 | 2018-12-28 | 佛山市顺德区美的电热电器制造有限公司 | Interior pot and cooking equipment |
| CN208784370U (en) * | 2018-05-23 | 2019-04-26 | 佛山市顺德区美的电热电器制造有限公司 | Cookware and cooking apparatus |
| CN208876041U (en) * | 2018-06-21 | 2019-05-21 | 佛山市顺德区美的电热电器制造有限公司 | Cookware and cooking apparatus |
-
2019
- 2019-12-31 CN CN201911418714.3A patent/CN113116119A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5643485A (en) * | 1988-04-15 | 1997-07-01 | Midwest Research Institute | Cooking utensil with improved heat retention |
| DE20312845U1 (en) * | 2003-08-20 | 2003-12-04 | Schabalin, Nathalie | Double-walled receptacle for hot drinks and suchlike has inner wall made from heat conducting material, and outer wall made from material not conducting heat, and cavity between inner and outer walls is filled with liquid via connector |
| CN204813456U (en) * | 2015-08-07 | 2015-12-02 | 浙江苏泊尔家电制造有限公司 | A interior pot and ware of cooking for cooking ware |
| CN205285980U (en) * | 2015-09-16 | 2016-06-08 | 浙江绍兴苏泊尔生活电器有限公司 | Inner pot for rice cooker and rice cooker |
| CN205267875U (en) * | 2016-01-22 | 2016-06-01 | 浙江苏泊尔家电制造有限公司 | Inner pot for cooking utensil and cooking utensil |
| CN205306734U (en) * | 2016-01-22 | 2016-06-15 | 浙江苏泊尔家电制造有限公司 | Inner pot for cooking utensil and cooking utensil |
| CN205322127U (en) * | 2016-01-22 | 2016-06-22 | 浙江苏泊尔家电制造有限公司 | Inner pot for cooking utensil and cooking utensil |
| CN205359175U (en) * | 2016-01-22 | 2016-07-06 | 浙江苏泊尔家电制造有限公司 | Inner pot for cooking utensil and cooking utensil |
| CN208286822U (en) * | 2017-08-21 | 2018-12-28 | 佛山市顺德区美的电热电器制造有限公司 | Interior pot and cooking equipment |
| CN208784370U (en) * | 2018-05-23 | 2019-04-26 | 佛山市顺德区美的电热电器制造有限公司 | Cookware and cooking apparatus |
| CN208876041U (en) * | 2018-06-21 | 2019-05-21 | 佛山市顺德区美的电热电器制造有限公司 | Cookware and cooking apparatus |
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