CN106993936B - Heating vessel - Google Patents
Heating vessel Download PDFInfo
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- CN106993936B CN106993936B CN201610045230.9A CN201610045230A CN106993936B CN 106993936 B CN106993936 B CN 106993936B CN 201610045230 A CN201610045230 A CN 201610045230A CN 106993936 B CN106993936 B CN 106993936B
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- heating
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- container body
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 343
- 239000011248 coating agent Substances 0.000 claims abstract description 243
- 238000000576 coating method Methods 0.000 claims abstract description 243
- 239000007788 liquid Substances 0.000 claims abstract description 162
- 239000011247 coating layer Substances 0.000 claims description 30
- 238000002309 gasification Methods 0.000 abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 230000000694 effects Effects 0.000 description 33
- 230000009467 reduction Effects 0.000 description 29
- 230000002035 prolonged effect Effects 0.000 description 15
- 239000000853 adhesive Substances 0.000 description 12
- 230000001070 adhesive effect Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 12
- 238000009835 boiling Methods 0.000 description 10
- 239000007787 solid Substances 0.000 description 10
- 239000002699 waste material Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000002209 hydrophobic effect Effects 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000005524 ceramic coating Methods 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241001122767 Theaceae Species 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 235000015067 sauces Nutrition 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003075 superhydrophobic effect Effects 0.000 description 1
- 235000013616 tea Nutrition 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
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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
- A47J27/21—Water-boiling vessels, e.g. kettles
- A47J27/21008—Water-boiling vessels, e.g. kettles electrically heated
- A47J27/21041—Water-boiling vessels, e.g. kettles electrically heated with heating elements arranged outside the water vessel
-
- 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
-
- 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
- A47J36/24—Warming devices
- A47J36/2483—Warming devices with electrical heating means
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Cookers (AREA)
- Control Of Resistance Heating (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The present invention provides a kind of heating vessels, comprising: vessel, heating component and coating；Wherein, vessel has the accommodating chamber for accommodating liquid；Heating component is used to heat the liquid in accommodating chamber；Coating is formed on the inner wall of vessel, and the thickness d of coating is 5 μm~50 μm.Heating vessel provided by the invention, coating is formed on the inner sidewall of vessel, it is smooth, but microcosmic upper with concaveconvex structure that coating, which is directly observed, gasification core is formed easily on coating in this way, gasification core grows up to form bubble, after bubble parameters to size appropriate, is detached from coating, noise of heating device during heating up water can be substantially reduced, daily life and work are facilitated, consumer's comforts of use is improved, considerably increases the competitiveness of product in market.
Description
Technical Field
The invention relates to the field of household appliances, in particular to a liquid heating container.
Background
At present, electric liquid heating devices are more and more concerned by people, and kettles on the market are also in a large number, but the inner containers or heating bottom plates of the electric kettles are mostly polished by stainless steel, so that the problem of high noise in the water boiling process basically exists, and the higher the power of the kettles is, the higher the noise generated by the kettles is; the daily life and work of people are influenced to a great extent, and great inconvenience is brought to consumers.
Disclosure of Invention
In order to solve at least one of the above technical problems, an object of the present invention is to provide a liquid heating container having a good noise reduction effect.
In order to achieve the above object, an embodiment of the present invention provides a liquid heating container, including a container body having a containing chamber for containing liquid; a heating assembly for heating the liquid within the containment chamber; and a coating layer formed on an inner wall of the container body; wherein the thickness d of the coating is 5-50 μm.
According to the liquid heating container provided by the invention, the coating is formed on the inner side wall of the container body, the coating is flat when being directly observed, but has a concave-convex structure on a microcosmic surface, so that a gasification core is easily formed on the coating, the gasification core grows to form bubbles, and the bubbles are separated from the coating after growing to a proper size, so that the noise generated in the liquid heating process of the liquid heating container is reduced, and the thickness d of the coating on the inner side wall of the container body is 5-50 mu m, so that the phenomenon that the coating is soft, non-wear-resistant, easy to damage and influenced in service life is avoided, and the phenomenon that the coating is too large, so that the coating is not strong in adhesive force and easy to fall off and the service life of the coating is influenced is also prevented; moreover, the thickness d of the coating is in the range, so that the bubbles can be better ensured to grow to be in proper size and then to be separated from the coating. Therefore, the liquid heating device prolongs the service life of the product on the premise of ensuring the noise reduction effect, and greatly improves the user experience, thereby increasing the market competitiveness of the product.
Particularly, in the electric kettle sold in the market at present, the inner container or the heating bottom plate is mostly polished by stainless steel, so that the noise is high in the water boiling process, the life and work of people are influenced to a great extent, and a great deal of inconvenience is brought to consumers; in the liquid heating container provided by the invention, the coating is formed on the inner side wall of the container body, the coating is flat when being directly observed, but has a concave-convex structure on a microcosmic surface, so that a gasification core is easily formed on the coating, the gasification core grows to form bubbles, and the bubbles are separated from the coating after growing to a proper size, so that the noise generated in the liquid heating process of the liquid heating container is reduced, and the thickness d of the coating on the inner side wall of the container body is 5-50 microns, so that on one hand, the condition that the coating is soft, non-wear-resistant and easy to damage and the service life of the coating are influenced due to the fact that the thickness d of the coating is less than 5 microns is avoided, and on the other hand, the condition that the service life of the coating is influenced by the fact that the adhesive force of the coating is not strong and the coating is; moreover, the thickness d of the coating is in the range, so that the bubbles can be better ensured to grow to be in proper size and then to be separated from the coating. Therefore, the liquid heating device prolongs the service life of the product on the premise of ensuring the noise reduction effect, and greatly improves the user experience, thereby increasing the market competitiveness of the product.
In addition, the liquid heating container provided by the invention in the above embodiment may further have the following additional technical features:
in the technical scheme, the thickness d of the coating is 15-30 μm.
In the technical scheme, the thickness d of the coating is within the range, so that the conditions that the coating is soft, not wear-resistant and easy to damage and the service life of the coating is influenced due to the fact that the thickness d of the coating is smaller than 15 micrometers are avoided on one hand, and the conditions that the adhesive force of the coating is not strong and the coating is easy to fall off and the service life of the coating is influenced due to the fact that the thickness d of the coating is larger than 30 micrometers are avoided on the other hand, namely the service life of a product is ensured, and the market competitiveness of the product is increased; moreover, the thickness d of the coating is in the range, so that the bubbles can be better ensured to grow to be separated from the coating after growing to be in a proper size, the noise generated in the liquid heating process of the liquid heating container is reduced, and the use comfort of consumers is improved.
In any one of the above technical solutions, the heating power P of the liquid heating container is 400W to 3000W.
In the technical scheme, in the process of heating liquid, the noise is obvious in a certain heating stage, and the heating power P of the liquid heating container is in the range, so that on one hand, the conditions that the temperature rise of the liquid is slow and the heating stage time length generated by the noise is prolonged due to the fact that the heating power P is less than 400W are avoided; on the other hand, the situation that the heating power P is larger than 3000W, so that the power is too large and energy is wasted is avoided; moreover, the heating power P in the range can better ensure that the bubbles grow to be of proper size and then are separated from the coating, and the noise generated in the liquid heating process of the liquid heating container is reduced, so that the use comfort of consumers is improved.
In any one of the above technical solutions, the heating power P of the liquid heating container is 1000W to 2000W.
In the technical scheme, in the process of heating liquid, noise is obvious in a certain heating stage, and the heating power P of the liquid heating container is in the range, so that on one hand, the situation that the heating power P is smaller than 1000W, the temperature rise of the liquid is slow, and the time length of the heating stage generated by the noise is prolonged is avoided, and on the other hand, the situation that the heating power P is larger than 2000W, the power is too large, and the energy is wasted is avoided; moreover, the heating power P in the range can better ensure that the bubbles grow to be of proper size and then are separated from the coating, and the noise generated in the liquid heating process of the liquid heating container is reduced, so that the use comfort of consumers is improved.
In any of the above solutions, the ratio of the heating power P to the thickness d of the coating layer is: p/d is more than or equal to 8W/mum and less than or equal to 600W/mum.
In the technical scheme, parameters are further limited, a ratio relation exists between the heating power P of the liquid heating container and the thickness d of the coating, and the ratio P/d is more than or equal to 8W/mum and less than or equal to 600W/mum, so that on one hand, the condition that the temperature rise of the liquid is slower due to the smaller ratio of the heating power P of the liquid heating container and the larger thickness d of the coating, the heating stage generated by noise is prolonged, or the adhesive force of the coating is not strong and is easy to fall off, and the service life of the coating is influenced is avoided; on the other hand, the situation that the ratio of the heating power P of the liquid heating container to the thickness d of the coating is large, namely the heating power P of the liquid heating container is large or the thickness d of the coating is small, so that energy is wasted, or the coating is soft, wear-resistant and easy to damage, and the service life of the coating is influenced is avoided; therefore, through reasonably setting the ratio between the heating power P of the liquid heating container and the thickness d of the coating, on the basis of ensuring the heating efficiency of the liquid heating container, the bubble can be better ensured to grow to be separated from the coating after reaching a proper size, the noise reduction effect is better ensured, the service life of the product is prolonged, and the market competitiveness of the product is greatly increased.
In any of the above solutions, the ratio of the heating power P to the thickness d of the coating layer is: p/d is more than or equal to 33W/mum and less than or equal to 133W/mum.
In the technical scheme, parameters are further limited, a ratio relation exists between the heating power P of the liquid heating container and the thickness d of the coating, and the ratio P/d is more than or equal to 33W/mum and less than or equal to 133W/mum, so that on one hand, the condition that the temperature rise of the liquid is slower due to the smaller ratio of the heating power P of the liquid heating container and the larger thickness d of the coating, the heating stage generated by noise is prolonged, or the adhesive force of the coating is not strong and is easy to fall off, and the service life of the coating is influenced is avoided; on the other hand, the situation that the ratio of the heating power P of the liquid heating container to the thickness d of the coating is large, namely the heating power P of the liquid heating container is large or the thickness d of the coating is small, so that energy is wasted, or the coating is soft, wear-resistant and easy to damage, and the service life of the coating is influenced is avoided; therefore, through reasonably setting the ratio between the heating power P of the liquid heating container and the thickness d of the coating, on the basis of ensuring the heating efficiency of the liquid heating container, the bubble can be better ensured to grow to be separated from the coating after reaching a proper size, the noise reduction effect is better ensured, the service life of the product is prolonged, and the market competitiveness of the product is greatly increased.
In any one of the above technical solutions, the heating power density ρ of the bottom plate of the container body is 2W/cm2～30W/cm2。
In the technical scheme, in the process of heating liquid, noise is obvious in a certain heating stage, and the heating power density rho of the bottom plate of the container body is in the range, so that on one hand, the condition that the heating power density rho is less than 2W/cm is avoided2The temperature rise of the bottom plate is slow, and the heating stage time length generated by noise is prolonged; on the other hand, the heating power density rho is avoided to be more than 30W/cm2The situation of energy waste caused by overlarge power occurs; moreover, the heating power density rho is in the range, so that the bubbles can be better ensured to grow to be in a proper size and then to be separated from the coating, the noise generated in the liquid heating process of the liquid heating container is reduced, and the use comfort of consumers is improved.
In any one of the above technical solutions, the heating power density ρ of the bottom plate of the container body is 8W/cm2～18W/cm2。
In the technical scheme, in the process of heating liquid, noise is obvious in a certain heating stage, and the heating power density rho of the bottom plate of the container body is in the range, so that the situation that the heating power density rho is less than 8W/cm is avoided on one hand2Resulting in slower temperature rise of the soleplate and prolonged noise generationA situation of a period of time occurs; on the other hand, the heating power density rho is avoided to be more than 18W/cm2The situation of energy waste caused by overlarge power occurs; moreover, the heating power density rho is in the range, so that the bubbles can be better ensured to grow to be in a proper size and then to be separated from the coating, the noise generated in the liquid heating process of the liquid heating container is reduced, and the use comfort of consumers is improved.
In any of the above technical solutions, a ratio of the heating power density ρ to the thickness d of the coating layer is: 0.04W/(μm cm)2)≤ρ/d≤6W/(μm·cm2)。
In the technical scheme, the parameters are further defined, and the heating power density rho of the bottom plate of the container body and the thickness d of the coating have a ratio relation of 0.04W/(mum cm)2)≤ρ/d≤6W/(μm·cm2) On one hand, the condition that the ratio between the heating power density rho and the coating thickness d is too small, namely the heating power density rho of the bottom plate of the container body is too small or the coating thickness d is too large, so that the temperature rise of the bottom plate is slow, the heating stage generated by noise is prolonged, or the coating has weak adhesive force and is easy to fall off, and the service life of the coating is influenced is avoided; on the other hand, the condition that the ratio of the heating power density rho of the bottom plate of the container body is too large or the thickness d of the coating is too small, which causes energy waste or the coating is soft, non-wear-resistant and easy to damage and influences the service life of the coating is avoided; therefore, through reasonably setting the ratio between the heating power density rho of the liquid heating container and the thickness d of the coating, on the basis of ensuring the heating efficiency of the liquid heating container, the bubble can be better ensured to grow to be separated from the coating after reaching a proper size, the noise reduction effect is better ensured, the service life of the product is prolonged, and the market competitiveness of the product is greatly increased.
In any of the above technical solutions, a ratio of the heating power density ρ to the thickness d of the coating layer is: 0.27W/(μm cm)2)≤ρ/d≤1.2W/(μm·cm2)。
In the technical scheme, the pairThe parameters are further defined, and the heating power density rho of the bottom plate of the container body and the thickness d of the coating have a ratio relation of 0.27W/(mum cm)2)≤ρ/d≤1.2W/(μm·cm2) On one hand, the condition that the ratio between the heating power density rho and the coating thickness d is too small, namely the heating power density rho of the bottom plate of the container body is too small or the coating thickness d is too large, so that the temperature rise of the bottom plate is slow, the heating stage generated by noise is prolonged, or the coating has weak adhesive force and is easy to fall off, and the service life of the coating is influenced is avoided; on the other hand, the condition that the ratio of the heating power density rho of the bottom plate of the container body is too large or the thickness d of the coating is too small, which causes energy waste or the coating is soft, non-wear-resistant and easy to damage and influences the service life of the coating is avoided; therefore, through reasonably setting the ratio between the heating power density rho of the liquid heating container and the thickness d of the coating, on the basis of ensuring the heating efficiency of the liquid heating container, the bubble can be better ensured to grow to be separated from the coating after reaching a proper size, the noise reduction effect is better ensured, the service life of the product is prolonged, and the market competitiveness of the product is greatly increased.
In any one of the above solutions, the heating assembly includes: the heating device is arranged on the bottom plate of the container body; a heating plate disposed on a bottom plate of the container body; the temperature controller is used for detecting the temperature T of the heating plate and controlling the starting and stopping of the heating device according to the temperature T of the heating plate; the temperature controller detects that the temperature T of the heating plate is lower than 95 ℃, and controls the heating device to start; and the temperature controller detects that the temperature T of the heating plate is higher than 115 ℃, and controls the heating device to stop.
In the technical scheme, the heating device and the heating plate are both arranged on the bottom plate of the container body, when liquid is heated, the heating device is started to heat the heating plate, then heat is transferred from the heating plate to the liquid, so that the liquid in the container body is heated, the heating efficiency of the liquid heating container is ensured, and the use comfort level of a user is improved; in addition, the temperature controller is used for detecting the temperature T of the heating plate, so that the temperature T of the heating plate is ensured to be 95-115 ℃, and on one hand, the situation that the liquid cannot be completely boiled due to the fact that the temperature T of the heating plate is lower than 95 ℃ is avoided; on the other hand, the situation that the temperature T of the heating plate is higher than 115 ℃ to cause the overhigh temperature T of the heating plate and cause energy waste is avoided; moreover, the temperature T of the heating plate is in the range, so that the bubbles can be better ensured to grow to be in a proper size and then to be separated from the coating, the noise generated in the liquid heating process of the liquid heating container is reduced, and the use comfort of consumers is improved.
In any of the above technical solutions, a ratio of the temperature T of the heating plate to the thickness d of the coating layer is: t/d is more than or equal to 1.9 ℃/mum and less than or equal to 23 ℃/mum.
In the technical scheme, parameters are further limited, the ratio relation exists between the highest temperature T on the surface of the heating plate and the thickness d of the coating, and T/d is more than or equal to 1.9 ℃/mum and less than or equal to 23 ℃/mum, so that on one hand, the condition that the ratio of the highest temperature T to the surface of the heating plate is too large, the temperature T of the heating plate is too high or the thickness d of the coating is too small, and thus energy is wasted, or the coating is softer, not wear-resistant and easy to damage, and the service life of the coating is influenced is avoided; on the other hand, the condition that the ratio of the two is too small, so that the temperature T of the heating plate is too low or the thickness d of the coating is too large, and the liquid cannot be boiled completely or the coating has weak adhesive force and is easy to fall off, and the service life of the coating is influenced is avoided; moreover, the ratio relation is in the range, so that the bubbles can be better ensured to grow to be in proper size and then to be separated from the coating. Therefore, the ratio of the highest temperature T of the surface of the heating plate to the thickness d of the coating is reasonably set, so that the energy is saved, the noise reduction effect of the liquid heating container is improved, and the service life of the product is prolonged on the basis of ensuring the heating efficiency of the product.
In any of the above technical solutions, a ratio of the temperature T of the heating plate to the thickness d of the coating layer is: t/d is more than or equal to 3.33 ℃/mum and less than or equal to 7 ℃/mum.
In the technical scheme, parameters are further limited, the ratio relation exists between the highest temperature T on the surface of the heating plate and the thickness d of the coating, and T/d is more than or equal to 3.33 ℃/mum and less than or equal to 7 ℃/mum, so that on one hand, the condition that the ratio of the highest temperature T to the surface of the heating plate is too high and the thickness d of the coating is too small, which causes the too high temperature T of the heating plate or the too small thickness d of the coating, is avoided, and therefore, energy is wasted, or the coating is softer, is not wear-resistant and is easy; on the other hand, the condition that the ratio of the two is too small, so that the temperature T of the heating plate is too low or the thickness d of the coating is too large, and the liquid cannot be boiled completely or the coating has weak adhesive force and is easy to fall off, and the service life of the coating is influenced is avoided; moreover, the ratio relation is in the range, so that the bubbles can be better ensured to grow to be in proper size and then to be separated from the coating. Therefore, the ratio of the highest temperature T of the surface of the heating plate to the thickness d of the coating is reasonably set, so that the energy is saved, the noise reduction effect of the liquid heating container is improved, and the service life of the product is prolonged on the basis of ensuring the heating efficiency of the product.
In any one of the above solutions, the heating assembly is disposed at the bottom of the container body.
In the technical scheme, the heating assembly is arranged at the bottom of the container body, namely the heating assembly and the coating are separately arranged, so that the normal work of the coating is ensured; the liquid in the container body can be heated by the heating assembly, the heating efficiency of the product is ensured, and the market competitiveness of the product is increased.
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 cross-sectional view of one embodiment of a liquid heating vessel according to the present invention;
fig. 2 is a partial cross-sectional structural schematic view of the container body shown in fig. 1.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 and fig. 2 is:
10 container body, 101 containing cavity, 30 heating assembly, 31 heating device, 32 heating plate, 33 temperature controller and 50 coating.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A liquid heating vessel according to some embodiments of the present invention is described below with reference to fig. 1 and 2.
As shown in fig. 1 and 2, the liquid heating container includes: a container body 10, a heating assembly 30, and a coating 50.
Specifically, the container body 10 has a containing chamber 101 for containing liquid; the heating assembly 30 is used for heating the liquid in the accommodating cavity 101; the coating layer 50 is formed on the inner wall of the container body 10, and the thickness d of the coating layer 50 is 5 to 50 μm.
As shown in fig. 1 and 2, the liquid heating container of the present invention has a coating layer 50 formed on the inner side wall of the container body 10, the coating layer 50 is flat when directly observed, but has a micro-concave-convex structure, so that a gasification core is easily formed on the coating layer 50, the gasification core grows to form bubbles, and after the bubbles grow to a proper size, and is removed from the coating 50, thereby reducing the noise generated by the liquid heating vessel during heating of the liquid, the thickness d of the coating 50 on the inner side wall of the container body 10 is 5-50 microns, so that the condition that the coating is soft, not wear-resistant and easy to damage and the service life of the coating is influenced due to the fact that the thickness d of the coating is smaller than 5 microns is avoided, and the condition that the adhesive force of the coating is not strong and the coating is easy to fall off and the service life of the coating is influenced due to the fact that the thickness d of the coating is larger than 50 microns is avoided; therefore, on the premise of ensuring the noise reduction effect, the liquid heating device prolongs the service life of the product, and greatly improves the user experience, thereby increasing the market competitiveness of the product; moreover, the thickness d of the coating 50 is within the range, so that the bubbles can be better ensured to grow to a proper size and then to be separated from the coating 50, and the noise generated in the liquid heating process of the liquid heating container is reduced, thereby improving the use comfort of consumers.
In the above technical solution, the shape of the container body 10 can be various, and the sidewall and the bottom of the container body 10 can be integrally formed or assembled and welded together; the material can be aluminum alloy, titanium alloy, copper and the like besides stainless steel, and can be sprayed by selecting proper materials; in addition, the material of the coating 50 meets the food sanitation requirement, can resist the temperature of more than 150 ℃ for a long time and resist the temperature of more than 260 ℃ for a short time, and can be an organic coating, a ceramic coating and the like; moreover, the coating layer 50 has good adhesion to the container body 10; finally, the coating 50 has good corrosion resistance and is not damaged by common kitchen oil, salt, sauce, vinegar, tea and the like.
In addition, those skilled in the art will appreciate that references to "forming" herein include, but are not limited to: sintering, spraying, vapor deposition and diffusion, low-temperature baking, electrochemical process, sol-gel, in-situ reaction and the like. For example, the coating layer may be formed on the inner wall of the container body 10 by any one of these means or a combination thereof.
Based on the above technical solution, in one embodiment of the present invention, the container body 10 is provided with a fluorine-containing coating layer 50; in another embodiment of the invention, the container body 10 is provided with a ceramic coating 50.
In one embodiment of the present invention, the thickness d of the coating 50 is 15 μm. ltoreq. d.ltoreq.30 μm.
In a specific embodiment of the invention, the thickness d of the coating 50 is 20 μm.
In another embodiment of the present invention, the thickness d of the coating 50 is 30 μm.
In this embodiment, the thickness d of the coating 50 is 15 μm or more and d or less than 30 μm, on one hand, if the thickness d of the coating 50 is less than 15 μm, the coating 50 is soft, non-wear-resistant and easy to damage, which affects the normal use of the coating 50 and makes it unable to achieve the noise reduction effect; on the other hand, if the thickness d of the coating 50 is greater than 30 μm, although the noise reduction effect of the coating 50 is better, the adhesion of the coating 50 is not strong and is easy to fall off, so that the service life of the coating 50 is greatly influenced, and the service life of the product is ensured by the thickness d of the coating 50, so that the market competitiveness of the product is increased; moreover, the thickness d of the coating 50 is within the range, so that the bubbles can be better ensured to grow to a proper size and then to be separated from the coating 50, and the noise generated in the liquid heating process of the liquid heating container is reduced, thereby improving the use comfort of consumers.
According to experimental data, when d is less than 5 micrometers, the coating 50 is too thin and is easy to wear, and the noise reduction effect is general and is about 1-3 dB; when d is more than or equal to 5 mu m and less than or equal to 50 mu m, the thickness d of the coating 50 is moderate, the adhesive force is stronger, and the noise reduction effect is better and is about 3-12 dB; when d is larger than 50 μm, the coating 50 is too thick, the adhesion is poor, and the coating is easy to fall off, and the noise reduction effect is about 12 dB. Therefore, in order to ensure good heat transfer effect and non-shedding performance of the coating 50, the thickness d of the coating 50 should satisfy d is 5 μm or more and 50 μm or less, preferably d is 15 μm or more and 30 μm or less, within this range, it can be better ensured that the bubbles grow to a proper size and then are separated from the coating 50, and noise generated during the liquid heating process of the liquid heating vessel is reduced.
In one embodiment of the invention, the heating power P of the liquid heating vessel is in the range 400W to 3000W, preferably 1000W to 2000W.
In one embodiment of the invention, the heating power P of the liquid heating vessel is 1500W.
In another embodiment of the invention, the heating power P of the liquid heating vessel is 1800W.
In this embodiment, in the process of heating the liquid, noise is more obvious in a certain heating stage, and the heating power P of the liquid heating container is in the above range, on one hand, if the heating power P is less than 1000W, the temperature rise of the liquid is slower, the heating stage time for generating the noise is longer, and the efficiency is lower in terms of noise reduction effect; on the other hand, if the heating power P is greater than 2000W, the power is too high, which results in energy waste and increases the use cost of the product. Therefore, the heating power P is 1000W-2000W, so that the bubbles can be better ensured to grow to a proper size and then break away from the coating 50, the noise generated in the liquid heating process of the liquid heating container is reduced, the coating 50 has a better noise reduction effect, the production cost of the product can be reduced on the basis of ensuring the heating efficiency of the coating, and the market competitiveness of the product is greatly increased.
In general, the heating power P of the liquid heating vessel is 400 W.ltoreq.P.ltoreq.3000W, where 800 W.ltoreq.P.ltoreq.2500W, preferably 1000 W.ltoreq.P.ltoreq.2000W, can be achieved as the case may be.
In one embodiment of the present invention, the parameters are further defined, the ratio relationship between the heating power P of the liquid heating container and the thickness d of the coating 50 is 8W/μm or more and 600W/μm or less, and according to the practical situation, 27W/μm or more and 167W/d or less and preferably 33W/μm or more and 133W/d or less, so as to better ensure that the bubbles are separated from the coating 50 after growing to a proper size, and thus the liquid heating container has a better noise reduction effect.
In one embodiment of the invention, the heating power density ρ of the floor of the container body 10 is 2W/cm2～30W/cm2Preferably, 8W/cm2～18W/cm2。
In one embodiment of the invention, the heating power density ρ of the floor of the container body 10 is 12W/cm2。
In another embodiment of the present invention, the heating power density ρ of the bottom plate of the container body 10 is 15W/cm2。
In this embodiment, the heating power density ρ of the bottom plate of the container body 10 is the ratio of the heating power P to the area of the bottom plate of the container body 10, the noise is more obvious in a certain heating stage during the heating of the liquid, the heating power density ρ of the bottom plate of the container body 10 is in the above range, and on one hand, ρ > 8W/cm2The situation that the heating stage time length caused by noise is prolonged due to slow temperature rise on the unit area of the bottom plate of the container body 10 is avoided, which causes great inconvenience to consumers in the using process; on the other hand,. rho.ltoreq.18W/cm2The serious waste of electric energy caused by overlarge heating power P per unit area of the bottom plate of the container body 10 is avoided; therefore, the floor heating power density ρ of the container body 10 is 8W/cm2～18W/cm2The bubble can be better ensured to grow to be separated from the coating 50 after reaching a proper size, the coating 50 has a better noise reduction effect, and the production cost of the product can be reduced on the basis of ensuring the heating efficiency of the coating, so that the market competitiveness of the product is greatly increased.
In one embodiment of the invention, the parameters are further defined such that the heating power density ρ of the bottom plate of the container body 10 is in a ratio of 0.04W/(μm-cm) to the thickness d of the coating layer 502)≤ρ/d≤6W/(μm·cm2) In practice, the concentration of 0.17W/(μm cm)2)≤ρ/d≤1.6W/(μm·cm2) Preferably, 0.27W/(μm-cm)2)≤ρ/d≤1.2W/(μm·cm2) The bubble can be better ensured to grow to a proper size and then be separated from the coating 50, so that the liquid heating container has a better noise reduction effect.
In one embodiment of the present invention, the heating assembly 30 includes: a heating means 31, the heating means 31 being provided on the bottom plate of the container body 10; a heating plate 32, the heating plate 32 being disposed on the bottom plate of the container body 10; the temperature controller 33 is used for detecting the temperature T of the heating plate 32 and controlling the start and stop of the heating device 31 according to the temperature T of the heating plate 32; wherein, the temperature controller 33 detects that the temperature T of the heating plate 32 is lower than 95 ℃, and the temperature controller 33 controls the heating device 31 to start; the temperature controller 33 detects that the temperature T of the heating plate 32 is higher than 115 ℃, and the temperature controller 33 controls the heating device 31 to stop.
In one embodiment of the present invention, the maximum temperature T of the surface of the heater plate 32 is 105 ℃.
In another embodiment of the present invention, the maximum temperature T of the surface of the heater plate 32 is 110 ℃.
In this embodiment, the heating device 31 and the heating plate 32 are both disposed on the bottom plate of the container body 10, when liquid is heated, the heating device 31 is started to heat the heating plate 32, and then heat is transferred from the heating plate 32 to the liquid, so as to heat the liquid in the container body 10, thereby ensuring the heating efficiency of the liquid heating container and improving the comfort level of the user; moreover, the heating plate 32 can be an aluminum plate, and the aluminum plate has the advantages of good heat conduction performance, low price and the like, so that the heating plate 32 is an aluminum plate, the production cost of the product is greatly reduced, and the market competitiveness of the product is increased; in addition, the temperature controller 33 is used for detecting the temperature T of the heating plate 32, so as to better control whether the heating device 31 is started, that is, the temperature controller 33 ensures that the temperature T of the heating plate 32 is 95 ℃ to 115 ℃, on one hand, when the temperature T of the heating plate 32 is lower than 95 ℃, the situation that the liquid cannot be completely boiled occurs, so that the temperature controller 33 controls the heating device 31 to be started, so that the heating device 31 heats the liquid in the container; on the other hand, when the temperature T of the heating plate 32 is higher than 115 ℃, the temperature T of the heating plate 32 exceeds the boiling point of the liquid, which results in the temperature T of the heating plate 32 being too high, and if the heating is continued, only the energy is wasted, so the temperature controller 33 controls the heating device 31 to stop heating; moreover, the temperature T of the heating plate 32 is within the range, so that the bubbles can be better ensured to grow to a proper size and then to be separated from the coating, and the noise generated in the liquid heating process of the liquid heating container is reduced, thereby improving the use comfort of consumers.
In addition, when the electric heating device 31 normally works, the highest temperature T on the surface of the heating plate 32 is more than or equal to 95 ℃ and less than or equal to 115 ℃, and according to practical conditions, the T is more than or equal to 98 ℃ and less than or equal to 110 ℃, preferably, the T is more than or equal to 100 ℃ and less than or equal to 105 ℃.
In an embodiment of the present invention, the parameters are further defined, a ratio relationship exists between the highest temperature T on the surface of the heating plate 32 and the thickness d of the coating 50, T/d is greater than or equal to 1.9 ℃/μm and less than or equal to 23 ℃/μm, T/d is greater than or equal to 3.27 ℃/μm and less than or equal to 7.33 ℃/μm according to practical situations, preferably, T/d is greater than or equal to 3.33 ℃/μm and less than or equal to 7 ℃/μm, so as to better ensure that bubbles are separated from the coating 50 after growing to a proper size, and to enable the liquid heating container to have a better noise reduction effect.
In one embodiment of the present invention, the heating assembly 30 is disposed at the bottom of the container body 10.
In this embodiment, the heating assembly 30 is disposed at the bottom of the container body 10, that is, the heating assembly 30 and the coating 50 are separately disposed, on one hand, the normal operation of the coating 50 is ensured, and on the other hand, the heating assembly 30 is more favorable for heating the liquid in the container body 10, so that the heating efficiency of the product is ensured, and the market competitiveness of the product is increased.
In addition, the scratch hardness h of the surface of the coating layer 50 on the sidewall of the container body 10, the thermal conductivity λ and the contact angle θ of the coating layer 50 are also set according to actual conditions, and generally, the following settings are provided:
according to one embodiment of the present invention, the scratch hardness of the surface of the coating 50 is H, wherein 1H < h.ltoreq.9H, preferably 2 H.ltoreq.h.ltoreq.8H.
In one embodiment of the present invention, the surface scratch hardness H of the coating 50 is 3H;
in another embodiment of the present invention, the surface scratch hardness H of the coating 50 is 6H.
In the embodiment, the scratch hardness H of the surface of the coating 50 is not less than 2H and not more than 8H, so that on one hand, the condition that the service life of the coating 50 is influenced due to damage to the surface of the coating 50 caused by liquid flowing and other friction when the liquid heating container is used for multiple times because the hardness of the coating 50 is not less than 2H is avoided; on the other hand, the condition that the hardness of the coating 50 is more than 8H, so that the coating 50 is brittle and not durable and the service life of the coating 50 is influenced is avoided, namely the service life of the product is ensured, so that the market competitiveness of the product is enhanced; moreover, the surface scratch hardness h of the coating 50 is in the range, so that the bubbles can be better ensured to grow to a proper size and then to be separated from the coating 50, the noise generated in the liquid heating process of the liquid heating container is reduced, and the use comfort of consumers is improved.
Experimental data show that when the surface scratch hardness H of the coating 50 is less than 1H, the coating 50 is softer and has poor wear resistance; when the surface scratch hardness H of the coating 50 is more than 1H, the coating 50 is harder and has good wear resistance; therefore, preferably, 2H ≦ H ≦ 8H.
According to the above embodiment, the parameters are further defined, and the scratch hardness H of the surface of the coating layer 50 has a ratio relation with the thickness d of the coating layer 50, the heating power P of the liquid heating container, the heating power density ρ of the bottom plate of the container body and the highest temperature T of the surface of the heating plate 32, wherein d/H is more than or equal to 0.56 μm/H and less than or equal to 50 μm/H, preferably, d/H is more than or equal to 1.875 μm/H and less than or equal to 15 μm/H; P/H is more than or equal to 44W/H and less than or equal to 3000W/H, P/H is more than or equal to 100W/H and less than or equal to 1250W/H according to actual conditions, and preferably P/H is more than or equal to 125W/H and less than or equal to 1000W/H; 0.22W/(H · cm)2)≤ρ/h≤30W/(H·cm2) In practice, the ratio of 0.625W/(H · cm) can be adjusted2)≤ρ/h≤12W/(H·cm2) Preferably, 1W/(H ·)cm2)≤ρ/h≤9W/(H·cm2) (ii) a T/H is more than or equal to 10.56 ℃/H and less than or equal to 115 ℃/H, T/H is more than or equal to 12.25 ℃/H and less than or equal to 55 ℃/H according to the actual situation, and preferably T/H is more than or equal to 12.5 ℃/H and less than or equal to 52.5 ℃/H; the bubble can be better ensured to grow to a proper size and then be separated from the coating 50, so that the liquid heating container has a better noise reduction effect.
According to one embodiment of the invention, the thermal conductivity λ of the coating 50 is set to 0.2W/(m · K) to 10W/(m · K), preferably 0.3W/(m · K) to 2W/(m · K).
In one embodiment of the present invention, the coating 50 has a thermal conductivity λ of 0.35W/(m.K).
In another embodiment of the present invention, the coating 50 has a thermal conductivity λ of 1.0W/(m.K).
In the embodiment, the thermal conductivity lambda of the coating 50 is 0.3W/(m · K) -2W/(m · K), on one hand, the situation that the thermal conductivity lambda of the coating 50 is lower than 0.3W/(m · K), which causes the too low thermal conductivity lambda of the coating 50, affects the heat transfer between the liquid and the container body 10, and the liquid is heated for a long time is avoided, so that the use comfort of the product is improved; on the other hand, the condition that the cost of the coating 50 is higher due to the fact that the heat conductivity coefficient lambda of the coating 50 is larger than 2W/(m.K) is avoided, namely the production and manufacturing cost of the product is reduced, and therefore the market competitiveness of the product is increased; moreover, the thermal conductivity coefficient lambda of the coating 50 is in the range, so that the bubbles can be better ensured to grow to a proper size and then to be separated from the coating 50, the noise generated in the liquid heating process of the liquid heating container is reduced, and the use comfort of consumers is improved.
Experimental data show that when the heat conductivity coefficient lambda of the coating 50 is less than 0.2W/(m.K), the heat conductivity of the coating 50 is poor, and the temperature of the heating plate 32 is high during water boiling, which may cause the phenomenon that the temperature controller 33 jumps early, so that the liquid cannot be boiled; when the thermal conductivity lambda of the coating 50 is more than or equal to 0.2W/(m.K), the thermal conductivity of the coating 50 is good, and the temperature of the heating plate 32 is low when water is boiled, so that the liquid can be boiled normally.
As can be seen from the above examples, further defining the parameters, the thermal conductivity λ of the coating layer 50 is in a ratio relationship with the thickness d of the coating layer 50, the heating power P of the liquid heating vessel, the heating power density ρ of the bottom plate of the vessel body 10, the maximum temperature T of the surface of the heating plate 32 and the surface scratch hardness h of the coating layer 50, 0.5 (m.K). mu.m/W.ltoreq.d/λ.ltoreq.250 (m.K). mu.m/W, preferably 1.875 (m.K). mu.m/W.ltoreq.d/λ.ltoreq.100 (m.K). mu.m/W; 40 (m.K). ltoreq.P/lambda.ltoreq.15000 (m.K), as the case may be 400 (m.K). ltoreq.P/lambda.ltoreq.8333 (m.K), preferably 500 (m.K). ltoreq.P/lambda.ltoreq.6667 (m.K); rho/lambda is not less than 150 (m.K) and not more than 0.2 (m.K), and according to the actual situation, 2.5 (m.K)/cm2≤ρ/λ≤80(m·K)/cm2Preferably, 4 (m.K)/cm2≤ρ/λ≤60(m·K)/cm2(ii) a 9.5 (m.K) ° W ≦ T/λ ≦ 575 (m.K) · ℃/W, depending on the actual situation 49 (m.K) ·/W ≦ T/λ ≦ 367 (m.K) ·/W, preferably 150 (m.K) ·/W ≦ T/λ ≦ 350 (m.K) ·/W; 0.1 (m.K). H/W.ltoreq.h/λ.ltoreq.45 (m.K). H/W, preferably 0.25 (m.K). H/W.ltoreq.h/λ.ltoreq.27 (m.K). H/W; the bubble can be better ensured to grow to a proper size and then be separated from the coating 50, so that the liquid heating container has a better noise reduction effect.
In one embodiment of the invention, the coating 50 has a contact angle θ of 80 θ ≦ 130 °, preferably 95 θ ≦ 115 °.
In one embodiment of the present invention, the coating 50 has a contact angle θ of 103 °.
In another embodiment of the present invention, the coating 50 has a contact angle θ of 108 °.
In the embodiment, the contact angle theta of the coating 50 is set to be more than or equal to 95 degrees and less than or equal to 115 degrees, so that the nonstickness of the coating 50 is moderate, and the bubble is ensured to be separated from the coating 50 after growing to a proper size, on one hand, the contact angle theta of the coating 50 is prevented from being less than 95 degrees, a gasification core is not easily formed, and the situation of large noise generated in the liquid heating process is avoided, and meanwhile, when the theta is more than 95 degrees, the surface of the coating 50 is hydrophobic, and the liquid easily flows on the surface of the coating, so that the heat transfer efficiency among the liquids is greatly improved; on the other hand, the contact angle theta of the coating 50 is prevented from being larger than 130 degrees, so that the bubbles are too large, the heat at the bottom of the container body 10 is prevented from being transferred to the water, the temperature of the heating plate 32 is too high, and the temperature controller 33 is prevented from jumping early, so that the liquid is prevented from being boiled; therefore, the arrangement of the contact angle theta improves the comfort level of the consumer and greatly increases the market competitiveness of the product.
Generally, the contact angle theta of the coating 50 is more than or equal to 80 degrees and less than or equal to 130 degrees, and experimental data show that when the contact angle theta is more than 130 degrees and less than 180 degrees, the coating 50 is super-hydrophobic in characteristic and extremely difficult to wet solid, so that the temperature controller 33 is caused to jump early and the liquid is not boiled; when the contact angle theta is more than or equal to 100 degrees and less than or equal to 130 degrees, the coating layer 50 is hydrophobic, is difficult to wet solid, has the effect of reducing noise, and is about 8-12dB, but the phenomena of early jump of the temperature controller 33 and no boiling of liquid can also occur; when the contact angle theta is more than or equal to 90 degrees and less than 100 degrees, the coating layer 50 is hydrophobic, is not easy to wet solid, has the effect of obviously reducing noise and is about 3-8 dB; when the contact angle theta is more than or equal to 80 degrees and less than 90 degrees, the coating 50 is hydrophilic, can be solid and wettable, and has an unobvious noise reduction effect of about 1-3 dB; when the contact angle θ is less than 80 °, the coating 50 is hydrophilic, is a wettable solid, and does not have a noise-reducing effect. Therefore, 90 DEG.ltoreq.theta.ltoreq.120 DEG, preferably 95 DEG.ltoreq.theta.ltoreq.115 DEG, depending on the actual situation.
According to the above embodiment, it can be seen that the parameters are further defined, the contact angle theta of the coating layer 50 and the thickness d of the coating layer 50, the heating power P of the liquid heating container, the heating power density rho of the bottom plate of the container body 10, the highest temperature T of the surface of the heating plate 32, the thermal conductivity lambda of the coating layer 50 and the surface scratch hardness h of the coating layer 50 all have a ratio relationship, 1.6 deg./mu m theta/d is smaller than or equal to 26 deg./mu m, and 3 deg./mu m theta/d is smaller than or equal to 8 deg./mu m, preferably 3.17 deg./mu m is smaller than or equal to 7.67 deg./mu m; 3.1W/° P/theta ≦ 37.5W/° and, depending on the actual situation, 6.7W/° P/theta ≦ 27.8W/°, preferably 8.7W/° P/theta ≦ 21.1W/°; 2.67 DEG cm2/W≤θ/ρ≤65°·cm2A value of/W is 3.75 DEG/cm in accordance with the actual condition2/W≤θ/ρ≤24°·cm2W, preferably 5.28 DEG cm2/W≤θ/ρ≤14.375°·cm2W; 0.73 ℃/° T/θ ≦ 1.44 ℃/° according to actual conditions, 0.82 ℃/°/≦ T/θ ≦ 1.22 ℃/° preferably, 0.87 ℃/°/≦ T/θ ≦ 1.11 ℃/°; 8 (m.K) °/W ≦ theta/λ ≦ 650 (m.K) ·/W, where practical, 11.25 (m.K) °/W ≦ theta/λ ≦ 400 (m.K) ·/W, preferably 11.875 (m.K) ·/W ≦ theta/λ ≦ 383 (m.K) ·/W; 8.89 degree/H theta/H is less than or equal to 130 degree/H, 11.25 degree/H is less than or equal to 60 degree/H, preferably 11.875 degree/H is less than or equal to 57.5 degree/H according to actual conditions; the bubble can be better ensured to grow to a proper size and then be separated from the coating 50, so that the liquid heating container has a better noise reduction effect.
The liquid heating vessel is described below with reference to some specific embodiments.
The first embodiment is as follows:
the surface-treated kettle liner is provided with a fluorine-containing coating, the thermal conductivity of the coating is 0.35W/(m.K), the thickness of the coating is 20 mu m, the hardness is 3H, the contact angle with the coating is 103 degrees, the heating power of the kettle is 1500W, and the heating power density is 12W/cm2When the kettle is normally used for boiling water, the highest temperature of the surface of the heating plate is 105 ℃, the maximum noise of the kettle in the water boiling process is 51dB, the noise of the kettle without surface treatment is 62dB, and the noise reduction effect is good.
The second embodiment is as follows:
the surface-treated inner container of the kettle is provided with a ceramic coating, the thermal conductivity coefficient of the coating is 1.0W/(m.K), the thickness of the coating is 30 mu m, the hardness is 6H, the contact angle with the coating is 108 degrees, the heating power of the kettle is 1800W, and the heating power density is 15W/cm2When the kettle is normally used for boiling water, the highest temperature of the surface of the heating plate is 110 ℃, the maximum noise of the kettle in the water boiling process is 52dB, the noise of the kettle without surface treatment is 62dB, and the noise reduction effect is good.
In summary, in the liquid heating container provided by the invention, the coating is formed on the inner side wall of the container body, the coating is flat when being directly observed, but has a concave-convex structure on a microcosmic surface, so that a gasification core is easily formed on the coating, the gasification core grows to form bubbles, and the bubbles are separated from the coating after growing to a proper size, so that noise generated in the liquid heating process of the liquid heating container is reduced, and the thickness of the coating on the inner side wall of the container body is 5-50 μm, so that the phenomenon that the coating is soft, non-wear-resistant, easy to damage and influenced in service life is avoided, and the phenomenon that the coating is too large, so that the coating is not strong in adhesive force and easy to fall off and the service life of the coating is influenced is also prevented; therefore, on the premise of ensuring the noise reduction effect, the liquid heating device prolongs the service life of the product, and greatly improves the user experience, thereby increasing the market competitiveness of the product; moreover, the thickness d of the coating is in the range, so that the bubbles can be better ensured to grow to be separated from the coating after growing to be in a proper size, the noise generated in the liquid heating process of the liquid heating container is reduced, and the use comfort of consumers is improved.
Particularly, in the electric kettle sold in the market at present, the inner container or the heating bottom plate is mostly polished by stainless steel, so that the noise is high in the water boiling process, the life and work of people are influenced to a great extent, and a great deal of inconvenience is brought to consumers; in the liquid heating container provided by the invention, the coating is formed on the inner side wall of the container body, the coating is flat when being directly observed, but has a concave-convex structure on a microcosmic surface, so that a gasification core is easily formed on the coating, the gasification core grows to form bubbles, and the bubbles are separated from the coating after growing to a proper size, so that the noise generated in the liquid heating process of the liquid heating container is reduced, and the thickness of the coating on the inner side wall of the container body is 5-50 mu m, so that on one hand, the condition that the coating is soft, non-wear-resistant and easy to damage and the service life of the coating are influenced due to the fact that the thickness of the coating is less than 5 mu m is avoided, and on the other hand, the condition that the adhesion force of the coating is not strong and the coating is easy to fall off and the service life of; therefore, on the premise of ensuring the noise reduction effect, the liquid heating device prolongs the service life of the product, and greatly improves the user experience, thereby increasing the market competitiveness of the product; moreover, the thickness d of the coating is in the range, so that the bubbles can be better ensured to grow to be separated from the coating after growing to be in a proper size, the noise generated in the liquid heating process of the liquid heating container is reduced, and the use comfort of consumers is improved.
In the present invention, the contact angle is the angle θ at which the tangent to the gas-liquid interface at the intersection of the gas, liquid and solid passes through the boundary between liquid and solid-liquid, and is a measure of the degree of wetting. If θ <90 °, the solid surface is hydrophilic, i.e., the liquid wets the solid more easily, and a smaller angle indicates better wettability; if θ >90 °, the solid surface is hydrophobic, i.e. the liquid does not easily wet the solid and easily moves over the surface.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means 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 do not necessarily 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.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A liquid heating vessel, comprising:
a container body having a receiving cavity for receiving a liquid;
a heating assembly for heating the liquid within the containment chamber; and
a coating layer formed on an inner wall of the container body;
wherein the thickness d of the coating is 5-50 μm;
the ratio relation of the heating power P to the thickness d of the coating is as follows:
33W/μm≤P/d≤133W/μm；
the ratio relation of the heating power density rho to the thickness d of the coating is as follows:
0.04W/(μm·cm2)≤ρ/d≤6W/(μm·cm2)；
the heating assembly includes:
a heating plate disposed on a bottom plate of the container body;
the ratio of the temperature T of the heating plate to the thickness d of the coating is as follows:
1.9℃/μm≤T/d≤23℃/μm。
2. a liquid heating vessel as claimed in claim 1,
the thickness d of the coating is 15-30 μm.
3. A liquid heating vessel as claimed in claim 1 or 2,
the heating power P of the liquid heating container is 400W-3000W.
4. A liquid heating vessel as claimed in claim 3,
the heating power P of the liquid heating container is 1000W-2000W.
5. A liquid heating vessel as claimed in claim 1 or 2,
the heating power density rho of the bottom plate of the container body is 2W/cm2～30W/cm2。
6. A liquid heating vessel as claimed in claim 5,
the heating power density rho of the bottom plate of the container body is 8W/cm2～18W/cm2。
7. A liquid heating vessel as claimed in claim 5,
the ratio relation of the heating power density rho to the thickness d of the coating is as follows:
0.27W/(μm·cm2)≤ρ/d≤1.2W/(μm·cm2)。
8. a liquid heating vessel as claimed in claim 1 or 2,
the heating assembly further comprises:
the heating device is arranged on the bottom plate of the container body; and
the temperature controller is used for detecting the temperature T of the heating plate and controlling the starting and stopping of the heating device according to the temperature T of the heating plate; wherein,
the temperature controller detects that the temperature T of the heating plate is lower than 95 ℃, and controls the heating device to start;
and the temperature controller detects that the temperature T of the heating plate is higher than 115 ℃, and controls the heating device to stop.
9. A liquid heating vessel as claimed in claim 8,
the ratio of the temperature T of the heating plate to the thickness d of the coating is as follows:
3.33℃/μm≤T/d≤7℃/μm。
10. a liquid heating vessel as claimed in claim 1 or 2,
the heating assembly is disposed at a bottom of the container body.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2386532B (en) * | 2001-11-29 | 2005-12-21 | Strix Ltd | Electric water heaters |
| EP1754435A1 (en) * | 2005-08-18 | 2007-02-21 | Strix Limited | Electric liquid heaters |
| CN101021355A (en) * | 2006-01-27 | 2007-08-22 | 施特里克斯有限公司 | Heaters for liquid heating vessels |
| CN201370463Y (en) * | 2006-12-14 | 2009-12-30 | 奥特控制有限公司 | Electric water heater |
| CN201431327Y (en) * | 2009-06-04 | 2010-03-31 | 王晨 | Liquid heating device with thick film circuit heating plate |
| CN204133190U (en) * | 2014-09-30 | 2015-02-04 | 宁波小智电器科技有限公司 | The electric kettle of coating |
| CN204889630U (en) * | 2015-08-28 | 2015-12-23 | 广东美的生活电器制造有限公司 | Electrical kettle |
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2016
- 2016-01-22 CN CN201610045230.9A patent/CN106993936B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2386532B (en) * | 2001-11-29 | 2005-12-21 | Strix Ltd | Electric water heaters |
| EP1754435A1 (en) * | 2005-08-18 | 2007-02-21 | Strix Limited | Electric liquid heaters |
| CN101021355A (en) * | 2006-01-27 | 2007-08-22 | 施特里克斯有限公司 | Heaters for liquid heating vessels |
| CN201370463Y (en) * | 2006-12-14 | 2009-12-30 | 奥特控制有限公司 | Electric water heater |
| CN201431327Y (en) * | 2009-06-04 | 2010-03-31 | 王晨 | Liquid heating device with thick film circuit heating plate |
| CN204133190U (en) * | 2014-09-30 | 2015-02-04 | 宁波小智电器科技有限公司 | The electric kettle of coating |
| CN204889630U (en) * | 2015-08-28 | 2015-12-23 | 广东美的生活电器制造有限公司 | Electrical kettle |
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