CN219353580U - Easy-to-clean electric rice cooker - Google Patents

Abstract

The utility model discloses an easy-to-clean electric cooker, which comprises a cooker body, a cooker cover and an inner container, wherein the cooker cover is covered on the cooker body, the inner container is arranged in the cooker body and is used for cooking rice, a heating device is arranged in the cooker body and is used for heating the inner container to cook rice, the inner container comprises an outer metal layer and an inner stainless steel layer, water locking grooves used for storing water and air are formed in the inner surface of the inner stainless steel layer, each water locking groove comprises a plurality of mutually independent water locking grooves and connecting parts formed between the adjacent water locking grooves, and the roughness in the water locking grooves is not less than the roughness of the surface of the connecting parts. According to the utility model, the water locking grooves and the water locking grooves of the connecting part are formed on the surface of the inner stainless steel layer, and the geometric structure of the stainless steel surface is changed by enabling the roughness in the water locking grooves to be not smaller than the roughness of the surface of the connecting part, so that the inner surface of the inner stainless steel layer has good water storage performance, and the wettability and the non-tackiness of the stainless steel surface are improved.

Description

Easy-to-clean electric rice cooker

Technical Field

The utility model belongs to the field of household appliances, and particularly relates to an easy-to-clean electric rice cooker.

Background

The cooking utensil such as electric cooker generally comprises a cooker body and a cooker cover, wherein the cooker body is internally provided with a liner and a heating device such as a heating disc or an IH wire coil, the liner is generally made of metal materials, and heat can be transferred to the liner after the heating device is electrified, so that rice in the liner is cured. However, the rice cooker has a phenomenon of sticking to the cooker during the cooking process, so that the inner container is difficult to clean after meal, and the use experience of a user is deteriorated. In order to solve the technical problem in the prior art, the following schemes are mainly adopted:

the inner wall of the liner is provided with the non-stick coating, but the non-stick coating is easy to fall off in the long-term cooking process, especially under the conditions of high-temperature cooking and dry burning, the non-stick coating is easier to fall off, the anti-sticking effect of the non-stick coating is influenced, and meanwhile, the health of people is also influenced to a certain extent; in the prior art, a groove is formed in the inner wall surface of the liner, and a non-stick coating is arranged in the groove only, so that the use area of the coating is reduced, the probability of coating falling off caused by factors such as scraping is reduced as much as possible, and the coating in the scheme still has the falling-off risk.

Firstly, the surface of the cooker is made into a non-smooth surface with a convex unit body, and the non-smooth surface is not provided with independent grooves, so that the water locking effect cannot be formed, and the non-sticking performance cannot be further improved; although it discloses that the protruding unit body can be replaced with a pit, the pit does not have water locking property.

The other is the water-wet film 0 coating technology which is applied by the applicant in advance, and on the basis, the applicant continues to research, so that the technical scheme of the utility model is generated, the water-wet film is further improved, and the non-sticky effect is realized.

Disclosure of Invention

The utility model provides an easy-to-clean electric rice cooker, which aims to solve at least one of the technical problems.

In order to achieve the above purpose, the specific technical scheme of the utility model is as follows:

the utility model provides an easy washout electric rice cooker, includes a kind of deep pot body, lid establish the deep pot lid on the deep pot body and set up the inner bag that is used for cooking rice in the deep pot body, be equipped with heating device in the deep pot body, heating device heats the inner bag in order to cook rice, the inner bag includes outer metal level and interior stainless steel layer, wherein, the internal surface on interior stainless steel layer is equipped with the water locking line that is used for storing water, gas, the water locking line includes the connecting portion that forms between a plurality of mutually independent water locking recesses and the adjacent water locking recess, roughness in the water locking recess is not less than the roughness on connecting portion surface.

In one embodiment of the present utility model, the equivalent depth of the water locking groove is 30 micrometers or more and 150 micrometers or less.

In one embodiment of the utility model, the diameter of the water locking groove is 100 micrometers to 500 micrometers, and the ratio of the width of the connecting part to the diameter of the water locking groove is 1/3 to 4.

In one embodiment of the present utility model, the water-locking grooves have a diameter of 100 to 800 microns such that a single rice grain covers at least two or more of the water-locking grooves.

In one embodiment of the present utility model, a plurality of the water locking grooves are distributed in a lattice or annular array, and the density of the water locking grooves is not less than 30 per square centimeter.

In one embodiment of the utility model, the water locking groove is formed by etching or carving, and a roughened rough surface is arranged in the water locking groove, and the roughness of the rough surface is larger than that of the surface of the connecting part.

In one embodiment of the utility model, the liner comprises a bottom wall and a side wall extending upwards from the bottom wall, a marking area is arranged on the side wall, a maximum water level marking scale is arranged in the marking area, the water locking grooves are distributed on the bottom wall and at least a part of the side wall, and the distribution height of the water locking grooves on the side wall is not smaller than the maximum water level marking scale.

In one embodiment of the present utility model, the outer metal layer comprises a soaking layer and an outer stainless steel layer, the soaking layer is located between the outer stainless steel layer and the inner stainless steel layer, and the outer stainless steel layer and/or the inner stainless steel layer are made of food grade metal materials.

In one embodiment of the utility model, a protective metal layer is further arranged on the inner wall of the liner, and the protective metal layer covers the water locking groove and the connecting part.

In one embodiment of the present utility model, the protective metal layer is a metal plating film formed by physical vapor deposition, and the thickness of the metal plating film is 0.5 μm or more and 2.5 μm or less.

After the technology is adopted, the utility model has the beneficial effects that:

according to the utility model, the water locking grooves and the water locking grooves of the connecting part are formed on the surface of the inner stainless steel layer, and the geometric structure of the stainless steel surface is changed by enabling the roughness in the water locking grooves to be not smaller than the roughness of the surface of the connecting part, so that the inner surface of the inner stainless steel layer has good water storage performance, the wettability and the non-tackiness of the stainless steel surface are improved, and compared with the smooth stainless steel surface: in the earlier stage of rice cooking, as the water locking groove is closer to the heating device, the tank bottom and the tank wall can heat water and rice in three dimensions, so that the heating device can better transfer heat to rice grains, and the cooking rate and quality of rice are improved; in the cooking completion stage of rice, rice has been gelatinized, most water in the inner bag is absorbed by rice or vaporization vapor, the setting of connecting portion can make the rice diminish with the direct contact area of inner bag, and then reduce the heat that the inner bag directly transmitted for rice, avoided rice to glue sticky because of the burnt high temperature, and because the independent setting of water locking recess is not linked together, and roughness in the water locking recess is not less than the roughness of connecting portion surface, make water, gas adhere to in the water locking recess more easily, the wall of locking recess of a small amount of water and the vapor in the rice clearance forms of inner bag inner wall is locked and is stored in the water locking recess under the effect of surface tension then, and then between rice and inner bag and form one deck water wetting film, this deck water wetting film can soak rice and inner bag inner wall, reduce the adhesion of rice and inner bag, make rice can not be stained with on the inner bag inner wall, thereby realize the effect that no coating is not sticky, the convenience of customers washs the inner bag.

As one embodiment of the present utility model, the water locking groove is formed by etching or carving, and a roughened rough surface is disposed in the water locking groove, and the roughness of the rough surface is greater than the roughness of the surface of the connecting portion. Through setting up the roughness through the coarsening in the recess, increased the roughness in the lock water recess, improved the recess and stored water, the ability of gas for compare in smooth stainless steel surface, the water film is more easy to be attached to on the lock water line, also makes the interior surface on interior stainless steel layer form the bionical concave-convex structure of similar lotus leaf simultaneously, has further reduced the area of contact of rice and inner bag, has improved non-sticky effect.

These features and advantages of the present utility model will be disclosed in detail in the following detailed description and the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of the easy-to-clean electric rice cooker according to an embodiment of the utility model;

FIG. 2 is a schematic view of the liner according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a partial structure of the liner according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a partial structure of the liner according to an embodiment of the present utility model;

fig. 5 is a schematic partial structure of the liner according to an embodiment of the present utility model.

Reference numerals: a pot body 100; an inner cover 101; a housing 102; an inner container 200; a bottom wall 201; a sidewall 202; a liner edge 203; an identification area 204; an inner stainless steel layer 210; a soaking layer 211; an outer stainless steel layer 212; a water locking groove 220; a connection portion 221; a release chamber 223; a cooking cavity 230; rice 231; a heating device 300; a pot cover 400.

Detailed Description

For a better understanding of the objects, structures and functions of the present utility model, reference should be made to the following detailed description of the utility model with reference to the accompanying drawings in which it is evident that the illustrated embodiments are some, but not all, of the embodiments of the utility model. Based on the technical solution provided by the utility model and the embodiments given, all other embodiments obtained by a person skilled in the art without making any inventive effort are within the scope of protection of the utility model.

It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

Referring to fig. 1 to 5, the easy-to-clean electric cooker provided in this embodiment includes a cooker body 100, a cooker cover 400 covering the cooker body 100, and an inner container 200 disposed in the cooker body 100 for cooking rice, a heating device 300 is disposed in the cooker body 100, the heating device 300 heats the inner container 200 to cook rice, the inner container 200 includes an outer metal layer and an inner stainless steel layer 210, a water locking groove for storing water and air is disposed on an inner surface of the inner stainless steel layer 210, the water locking groove includes a plurality of mutually independent water locking grooves 220 and connecting portions 221 formed between adjacent water locking grooves 220, and roughness in the water locking grooves 220 is not less than roughness of the surface of the connecting portions 221.

It should be noted that the water locking grooves may be etched on the metal stainless steel plate, or etched on the inner surface of the formed liner, or other processes, such as photolithography, embossing, laser engraving, etc., which are not limited herein.

Specifically, a cover which can be opened and closed at the top of the cooker body 100 is provided with a cooker cover 400, and the cooker cover 400 and the cooker body 100 can be hinged or can be arranged in a split manner; the pot body 100 has a cylindrical accommodating space, and the inner container 200 can be freely placed in the accommodating space or taken out of the accommodating space to facilitate cleaning thereof; the inner container 200 is an uncoated inner container, and generally has a circular opening at an upper portion thereof for accommodating materials to be heated, such as rice, soup, etc., and may be a ball container with an outwardly convex sidewall or a straight container with a vertical sidewall, and when the inner container 200 is placed in the accommodating space and the pot cover 400 is covered on the pot body 100, the pot cover 400 and the inner container 200 together define the cooking cavity 230; the heating device 300 is located at the bottom or the side of the accommodating space, and may be a heating plate or an electromagnetic wire coil, and heats the food material in the cooking cavity 230 by heating the inner container 200.

In this embodiment, by providing the water locking groove 220 and the connecting portion 221 on the surface of the inner stainless steel layer 210, and by making the roughness in the water locking groove 220 not smaller than the roughness of the surface of the connecting portion 221, the geometry of the stainless steel surface is changed, so that the inner surface of the inner stainless steel layer 210 has good water storage performance, and wettability and non-tackiness of the stainless steel surface are improved, compared with a smooth stainless steel surface: in the earlier stage of rice cooking, as the water locking groove 220 is closer to the heating device 300, the bottom and the wall of the groove can heat water and rice in three dimensions, so that the heating device 300 can better transfer heat to rice grains, and the cooking rate and quality of rice are improved; in the finishing stage of cooking rice, rice is gelatinized, most of water in the liner 200 is absorbed by rice or vaporized into steam, the direct contact area of the rice and the liner can be reduced by the arrangement of the connecting part 221, the heat quantity directly transferred to the rice by the liner is further reduced, the phenomenon that the rice is burnt and stuck due to overhigh temperature is avoided, and as the water locking grooves 220 are independently arranged and are not communicated with each other, the roughness in the water locking grooves 220 is not less than the roughness of the surface of the connecting part 221, so that water and gas are more easily adhered in the water locking grooves 220, a small amount of water on the inner wall of the liner and small water drops formed by steam in a rice gap can be locked and stored in the water locking grooves 220 under the action of surface tension, a layer of water wetting film is further formed between the rice and the liner, the bonding force of the rice and the liner can be reduced, the liner cannot be stuck on the inner wall of the liner, and therefore the effect of non-coating and non-sticking is achieved, and a user can conveniently clean the liner.

It should be noted that the rice cooking completion stage refers to a stage in which water is near dry after the boiling stage of the rice is completed, and may be a stewing stage, a heat preservation stage, a combination of the two or other stages after the boiling stage.

It should be noted that the specific form of the water locking groove 220 is not specifically limited, for example, in a specific embodiment, the inner surface of the inner stainless steel layer 210 is provided with protrusions, and each protrusion and the inner surface of the inner stainless steel layer enclose a plurality of independent grooves, so as to increase the contact area between the stainless steel surface and water vapor, and lock the water drops in the grooves by means of surface tension, thereby finally forming a water film; in another specific embodiment, the water locking grooves are pits arranged on the inner stainless steel layer 210 in a scattered distribution, the pits are not communicated with each other, and water drops are locked in the pits by means of the surface tension of water.

Of course, the above specific embodiments are only examples, and those skilled in the art can improve the water storage performance and the gas performance of the inner surface of the stainless steel by arranging the lines, so as to realize non-sticking, which should be all within the scope of the water locking lines of the present utility model.

The connection portion 221 according to the present utility model includes, but is not limited to, the following forms: 1. after the inner stainless steel layer 210 forms the water locking groove 220, the surface of the stainless steel inner layer connected with the adjacent water locking groove 220 is the connecting part 221 of the utility model; 2. the connection portions between the adjacent water locking grooves 220 are processed into fine lines to form the connection portions 221 of the present utility model; 3. the connection portions between the adjacent water locking grooves 220 are processed to be lower or higher than the original stainless steel inner surface, forming the connection portions of the present utility model. Of course, the above description does not represent a limiting structure for the connection of the present utility model.

It should be noted that, the independent means that two water locking grooves 220 are not communicated with each other, and a certain solid connection portion 221 is provided between two adjacent water locking grooves 220. It should also be noted that, the shape of the water locking groove 220 is not specifically limited, and the slot diameter D is the largest circumscribing circle dimension of the slot profile, for example, in a specific embodiment, the shape of the water locking groove 220 is circular, and the slot diameter D refers to the diameter of the circular shape; in another specific embodiment, the shape of the water locking groove 220 is a regular hexagon, and the diameter D of the notch refers to the diameter of the circumscribed circle of the regular hexagon; in another specific embodiment, the water locking groove 220 is rectangular in shape, and the slot diameter D refers to the width dimension between two short sides of the rectangle. Of course, those skilled in the art may further arrange the water locking groove 220 in a triangle, square or fan shape according to the specific conditions of the processing requirements, etc., which are not further listed herein.

Referring to fig. 3, in a specific embodiment, the equivalent depth of the water locking groove 220 is greater than or equal to 30 microns and less than or equal to 150 microns. The non-sticking performance and the cleaning performance of the liner can be considered through the arrangement: if H is less than 30 μm, the water storage effect of the water locking groove 220 cannot be ensured, so that only a small amount of water, steam and the like can be stored in the water locking groove, and finally, the rice cannot be effectively soaked, and the adhesion between the rice and the liner cannot be reduced; if H is greater than 150 micrometers, although the water locking groove 220 can be ensured to have a certain volume, and the effect of storing water and air can be ensured, the foreign matters are easily remained in the water locking groove 220 due to too large depth, which is not beneficial to cleaning of users and reduces the use experience of users.

Preferably, the equivalent depth of the water locking groove is more than or equal to 40 micrometers and less than or equal to 80 micrometers, and the arrangement can enable the liner to obtain better non-stick performance and cleaning performance.

Referring to fig. 3, in a specific embodiment, the water locking groove 220 has a diameter of 100 micrometers to 500 micrometers, and the ratio of the width of the connection portion 221 to the diameter of the water locking groove is between 1/3 and 4. In other words, the diameter of the water locking groove is D, D is less than or equal to 100 mu m and less than or equal to 500 mu m, and the width of the connecting part is L, and L/3 is less than or equal to 1/3 and L/D is less than or equal to 4.

The diameters of the water locking grooves 220 are limited to be in the range of 100 micrometers to 500 micrometers, such as 100 micrometers, 300 micrometers, 500 micrometers and the like, and the ratio of the width of the connecting part 221 to the diameters of the water locking grooves is limited to be 1/3 to 4, such as 1/3, 1/2, 3, 4 and the like, so that the non-sticking performance and the processability of the stainless steel inner layer can be considered, the diameters of the water locking grooves 220 and the width of the connecting part 221 are in a proper ratio, and the problems that the water storage performance is reduced, even the whole water and gas cannot be stored, and the non-sticking effect cannot be obvious due to the fact that the formed water film cannot infiltrate rice grains due to the fact that the diameters of the water locking grooves 220 are too small, rice grains are easily blocked into the water locking grooves 220 due to the fact that the widths of the connecting part 221 are too small, and are directly heated by groove walls and groove bottoms, and the problem that the connecting part 221 is difficult to clean due to easy cutting in the connecting part 221.

Referring to fig. 3 and 5, in a specific embodiment, the water locking grooves 220 have a diameter of 100 to 800 microns such that a single rice grain covers at least two or more of the water locking grooves 220. Because the rice grains are different in the inner container 200, the water locking grooves 220 cannot be communicated with the gaps of the rice and generate the functions of water storage and air, but by reasonably controlling the diameters of the water locking grooves 220, an anti-sticking cavity 223 can be formed between a part of the water locking grooves 220 and the rice grains 231, so that the rice grains 231 can be partially sealed in the anti-sticking cavity 223 under the functions of self gravity, the pressure of other rice grains and other factors, at the end of cooking of the rice, the water contained in the anti-sticking cavity 223 is vaporized into water vapor, and the water vapor slightly jacks the rice grains together with the air expanded by heating, so that the water film formed at the positions of the other water locking grooves is matched together, the adhesion force between the rice and the inner container is further reduced, the non-sticking of the rice can be promoted even if the part of the water locking grooves 220 cannot play the role of absorbing the water vapor, and the non-sticking effect of the non-coating is improved.

Of course, it is understood that the diameter of the water locking groove 220 may be 200, 400, 600 microns, etc., depending on the actual product requirements.

In a specific embodiment, a plurality of the water locking grooves 220 are distributed in a lattice or annular array, and the density of the water locking grooves 220 is not less than 30 per square centimeter. The arrangement can ensure that the inner surface of the inner stainless steel layer 210 has proper groove-entity ratio, ensure that the surface of the inner stainless steel layer 210 forms effective water locking grooves, prevent the water locking grooves 220 from being too sparsely distributed, and cause that the water locking grooves can only store a small amount of water and air, so that rice cannot be effectively soaked, and the effect of non-coating and non-sticking cannot be realized. It will be appreciated that the water locking groove 220 may have a density of 50, 80, 100, 150, 200 or 400 per square centimeter, etc., depending on the actual product requirements.

As a preferred embodiment, the water locking groove 220 is provided therein with a protrusion. The protrusions can be matched with the connecting portions 221, the capability of the water locking grooves 220 for locking water drops in the grooves by means of surface tension is improved, and the effect that rice can be soaked by formed water films and non-sticky is guaranteed.

Preferably, the height of the protrusion is smaller than the height of the connection part 221, and the protrusion protrudes from the center of the groove and decreases in height toward the edge of the groove.

In some embodiments of the present utility model, the water locking groove 220 is formed by etching or carving, and a roughened rough surface (refer to fig. 4) is disposed in the water locking groove 220, wherein the roughness of the rough surface is greater than that of the surface of the connecting portion.

Through setting up the roughness through the coarsening in the recess, increased the roughness in the water locking recess 220, improved the water locking recess and stored water, the ability of gas for compare in smooth stainless steel surface, the water film is more easy to be attached to on the lock water line, also makes the interior surface of interior stainless steel layer 210 form the bionical concave-convex structure of similar lotus leaf simultaneously, has further reduced the area of contact of rice and inner bag, has improved non-sticky effect.

The roughened rough surface may be a rough surface formed by etching the water-locking groove 220, or may be a rough surface formed by forming the water-locking groove and then performing sand blasting, laser etching, photolithography, or other means, so long as the roughness of the rough surface is greater than the roughness of the surface of the connecting portion, and those skilled in the art can select according to practical situations.

It should be noted that the engraving may be in a photolithography form, or may be laser engraving or some other engraving method, which is not specifically limited herein.

Referring to fig. 2, in some embodiments of the present utility model, the liner 200 includes a bottom wall 201 and a sidewall 202 extending upward from the bottom wall 201, the sidewall is provided with a marking area 204, a maximum water level mark scale is provided in the marking area 204, the water locking grooves 220 are distributed on the bottom wall 201 and at least a portion of the sidewall 202, and a distribution height of the water locking grooves 220 on the sidewall 202 is not less than the maximum water level mark scale. Therefore, the probability that the water locking groove 220 corresponds to the water level can be maximized when rice is cooked, so that the water locking groove 220 can store water and gas as much as possible, and the rice grains can be soaked by a water film, and the non-sticky effect is realized.

Optionally, the distribution density of the water locking grooves 220 is greater at the bottom of the sidewall than at the upper portion of the sidewall. In the cooking process of rice, the temperature of the side wall 202 is generally lower than that of the bottom wall 201, and the temperature of the part of the side wall, which is closer to the liner edge, is relatively lower, so that the sticking probability of rice on the side wall is smaller than that of rice on the bottom wall, and the rice is less likely to stick at the position of the side wall, which is closer to the liner edge, and the arrangement can reduce the production cost on the premise of ensuring the non-stick effect. Further, a protruding structure is further provided on the bottom wall 201, and the protruding structure is matched with the water locking groove 220, so as to further improve the non-sticking effect of the cooked rice.

Preferably, the top of the side wall 202 has a liner edge 203, and the liner edge 203 is also provided with a water locking groove 220, so as to play a role of skid resistance, and facilitate the user to take and place the liner 200.

Referring to fig. 3 and 4, in some embodiments of the present utility model, the outer metal layer includes a soaking layer 211 and an outer stainless steel layer 212, the soaking layer 211 is located between the outer stainless steel layer 212 and the inner stainless steel layer 210, and the outer stainless steel layer 212 and/or the inner stainless steel layer 210 are made of food grade metal materials.

The inner and outer stainless steel layers can play a role in protecting the soaking layer 211 at lower cost, the soaking layer 211 can play a role in uniformly distributing heat and accumulating heat, the effect of uniformly distributing heat can improve the heat uniformity of the inner container 200, the phenomenon that rice is burnt and stuck on the inner container due to overhigh local temperature is avoided, the effect of non-coating and non-sticking is further improved, the heat accumulating effect can enable the water locking groove 220 concave to the soaking layer 211 to better receive heat from a heating device, the rice grains are better heated in a three-dimensional mode, and the cooking rate and quality of rice are improved.

Alternatively, the inner stainless steel layer 210 and the outer stainless steel layer 212 may be made of SUS304 or SUS316L, or may be made of other stainless steel materials suitable for food contact, which is not limited herein.

Further, the soaking layer 211 is an aluminum layer, so that the heat conducting property is improved, and the weight of the liner 200 is reduced, thereby being convenient for a user to take and put. Optionally, a heat conduction pipe for improving heat conduction and heat accumulation effects is arranged in the aluminum layer.

Preferably, the ratio of the distance from the bottom of the water locking groove 220 to the soaking layer 211 to the thickness of the inner stainless steel layer 210 is not more than 0.95. If the value is greater than 0.95, the effect of the water locking groove 220 to more easily receive the heat transfer of the soaking layer 211 than the inner stainless steel layer 210 is not obvious, resulting in poor effects of three-dimensional heating of rice grains and improving the cooking rate of rice.

Preferably, the ratio of the distance from the bottom of the water locking groove 220 to the soaking layer 211 to the thickness of the inner stainless steel layer 210 is not less than 0.2, so as to ensure the protection effect of the inner stainless steel layer 210 on the soaking layer 211.

In some embodiments of the present utility model, a protective metal layer is further disposed on the inner wall of the liner 200, and the protective metal layer covers the water locking groove 220 and the connection portion 221.

The surface property of the inner stainless steel layer 210 can be further improved by the arrangement, the water and gas storage performance loss of the water locking lines caused by long-term scraping is prevented, the gloss of the inner surface of the inner container 200 can be changed, the color change problem caused by long-term use of stainless steel is relieved, the attractiveness of the inner container 200 is improved, and the use experience of a user is improved.

In a specific embodiment, the protective metal layer is a metal plating film formed by physical vapor deposition, and the thickness of the metal plating film is 0.5 μm or more and 2.5 μm or less. The arrangement is such that the coating is at a suitable thickness: if the thickness of the metal coating is less than 0.5 micrometers, the scraping performance of the metal coating is reduced due to the fact that the thickness of the metal coating is too small, and the problem that water locking lines cannot be effectively protected is solved; if the thickness of the metal coating is greater than 2.5 micrometers, the metal coating can excessively cover the water storage groove, so that the depth of the water storage groove is reduced, and water and gas cannot be effectively stored.

Alternatively, in a specific embodiment, the metal plating film is a titanium metal layer, which may be formed by electroplating, physical Vapor Deposition (PVD) film, or lamination, which is not specifically limited herein. The titanium material has good friction resistance, and the arrangement can effectively protect the water locking groove 220, prevent the water locking groove 220 from being damaged to lose water storage and gas performance, and simultaneously has certain antibacterial property, thereby being beneficial to improving the sanitation of the liner 200. Of course, the metal plating film may be a metal such as chromium, an alloy thereof, an oxide thereof, or the like, and is not particularly limited.

It will be appreciated that in some alternative embodiments of the present utility model, carburization, etc. may be used without changing the surface geometry of the inner stainless steel layer 210 to prevent the water and gas lock storage degradation caused by long-term scratching.

In some embodiments of the present utility model, referring to fig. 1, the pot body 100 includes an inner cover 101 and an outer casing 102, a cooling fan is disposed between the inner cover 101 and the outer casing 102, the inner cover 101 is provided with an air outlet channel corresponding to the cooling fan, and the air outlet channel is disposed towards the inner container 200.

At the end of cooking, cool air is orderly blown to the bottom of the inner container 200 through the cooling fan, and the temperature of the inner container 200 is quickly reduced, so that water vapor in a rice gap is promoted to be better liquefied and attached to water locking lines, the formation of a water film is more facilitated, the effect of non-sticking of a coating is improved, a user can conveniently cook rice after cooking is finished, and the cleaning of the inner container is also facilitated.

Specifically, referring to fig. 1, the outer casing 102 is generally formed by joining metal or metal and plastic, and the inner cover 101 may be formed by a heat-insulating cover alone or by a heat-insulating cover and an electromagnetic wire coil in combination; a space is provided between the inner cover 101 and the outer case 102, and a cooling fan, a circuit board, and the like may be provided therein.

The positions of the cooling fan and the air outlet passage are not particularly limited in the present utility model. For example, in a specific embodiment, referring to fig. 1, the cooling fan is disposed at a side portion of the pot body 100, and the air outlet channel is inclined toward the bottom of the liner 200; in another specific embodiment, the cooling fan is disposed at the bottom of the pot body 100, and the air outlet channel faces the bottom wall of the liner 200, so as to directly cool the bottom wall of the liner with higher temperature, and the effect is better.

It can be appreciated that the easy-to-clean electric rice cooker can also adopt natural cooling or other cooling modes without limitation.

It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims (10)

1. The utility model provides an easy washout electric rice cooker, includes a kind of deep pot body, lid establish the deep pot lid on the deep pot body and set up the inner bag that is used for cooking rice in the deep pot body, be equipped with heating device in the deep pot body, heating device heats the inner bag in order to cook rice, the inner bag includes outer metal level and interior stainless steel layer, its characterized in that, the internal surface on interior stainless steel layer is equipped with the lock water line that is used for storing water, gas, the lock water line includes the connecting portion that forms between a plurality of mutually independent lock water grooves and the adjacent lock water groove, roughness in the lock water groove is not less than the roughness on connecting portion surface.

2. The easy-to-clean electric rice cooker according to claim 1, wherein the equivalent depth of the water locking groove is 30 microns or more and 150 microns or less.

3. The easy-to-clean rice cooker according to claim 1, wherein the diameter of the water locking groove is 100-500 microns, and the ratio of the width of the connecting portion to the diameter of the water locking groove is 1/3-4.

4. The easy-to-clean rice cooker of claim 1, wherein the water locking grooves have a diameter of 100 to 800 microns such that a single rice grain covers at least two or more of the water locking grooves.

5. The easy-to-clean rice cooker according to claim 1, wherein a plurality of the water locking grooves are distributed in a lattice or annular array, and the density of the water locking grooves is not less than 30 per square centimeter.

6. The easy-to-clean electric cooker according to claim 1, wherein the water locking groove is formed by etching or carving, a roughened surface is provided in the water locking groove, and the roughened surface has a roughness greater than that of the surface of the connecting portion.

7. The easy-to-clean electric rice cooker according to claim 1, wherein the inner container comprises a bottom wall and a side wall extending upwards from the bottom wall, a mark area is arranged on the side wall, a maximum water level mark scale is arranged in the mark area, the water locking grooves are distributed on the bottom wall and at least a part of the side wall, and the distribution height of the water locking grooves on the side wall is not less than the maximum water level mark scale.

8. The easy-to-clean rice cooker of claim 1, wherein the outer metal layer comprises a soaking layer and an outer stainless steel layer, the soaking layer is located between the outer stainless steel layer and an inner stainless steel layer, and the outer stainless steel layer and/or the inner stainless steel layer are made of food grade metal materials.

9. The easy-to-clean electric rice cooker according to claim 1, wherein a protective metal layer is further arranged on the inner wall of the inner container, and the protective metal layer covers the water locking groove and the connecting part.

10. The easy-to-clean rice cooker according to claim 9, wherein the protective metal layer is a metal plating film formed by physical vapor deposition, and the thickness of the metal plating film is 0.5 μm or more and 2.5 μm or less.