CN219962509U - 0-coating electric cooker - Google Patents

Abstract

The utility model discloses a 0-coating electric cooker, which comprises a cooker body and a cooker liner arranged in the cooker body, wherein the cooker liner comprises an inner stainless steel layer, the surface of the inner stainless steel layer is pressed to form a groove array, the groove array is provided with a plurality of water locking grooves which are independently arranged, isolation ribs are formed between every two adjacent water locking grooves, the surface of the inner stainless steel layer is provided with a metal layer which covers the water locking grooves and the isolation ribs, the thickness of the metal layer is smaller than the depth of the water locking grooves, the depth of the water locking grooves is not larger than the width of the isolation ribs, and the ratio of the width of the isolation ribs to the equivalent diameter of the water locking grooves is 0.2-1; wherein, the width of the isolation rib is 50um to 300um. Through rationally setting for the degree of depth of keeping apart muscle, water locking recess and water locking recess equivalent diameter, be favorable to the water droplet that holds in the water locking recess to take place the polymerization with the moisture on keeping apart the muscle and the water droplet in the water locking recess around, form the water film of linking piece to regard as the anchor point with water locking recess, make between rice and the pot courage can produce more even, compact moist membrane.

Description

0-coating electric cooker

Technical Field

The utility model belongs to the field of household appliances, and particularly relates to a 0-coating electric cooker.

Background

The cooking utensil such as electric cooker generally comprises a cooker body and a cooker cover, wherein a cooker liner and a heating device such as a heating disc or an IH wire coil are arranged in the cooker body, the cooker liner is generally made of metal materials, and heat can be transferred to the cooker liner after the heating device is electrified, so that rice in the cooker liner is cured. However, the rice cooker has a phenomenon of sticking to the pot in the cooking process, so that the pot liner 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 pot 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 surface of the inner wall of the pot 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 falling off risk.

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

Disclosure of Invention

The utility model provides a 0-coating electric 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 a 0 coating electric cooker, includes a kind of deep pot body and locates the internal pot courage of deep pot, the pot courage includes interior stainless steel layer, interior stainless steel layer's surface suppression is formed with the recess matrix, the recess matrix has a plurality of lock water recesses of independent setting, forms the spacer bar between the adjacent lock water recess, interior stainless steel layer's surface is equipped with the metal level that covers on lock water recess and spacer bar, the thickness of metal level is less than lock water recess's degree of depth, just lock water recess degree of depth is not more than the width of spacer bar, just the ratio of width of spacer bar and lock water recess equivalent diameter is 0.2 to 1; wherein the width of the isolation rib is 50 μm to 300 μm.

In one embodiment of the utility model, the width of the isolating ribs in the circumferential direction and the axial direction of the pot liner are equal.

In one embodiment of the utility model, the width of the isolating rib in the oblique direction of the pot liner is larger than the width in the circumferential direction and the axial direction of the pot liner.

In one embodiment of the utility model, the ratio of the width of the isolating rib in the oblique direction of the pot liner to the equivalent diameter of the water locking groove is 0.5 to 1.

In one embodiment of the utility model, the thickness of the metal layer is 0.5 μm to 2 μm, or alternatively, the thickness of the metal layer is 0.5% to 2% of the depth of the water locking groove.

In one embodiment of the utility model, the depth of the water locking groove at the bottom of the inner stainless steel layer is H1, and the depth of the water locking groove at the side part of the inner stainless steel layer is H2, wherein H1> H2; alternatively, the depth of the water locking groove gradually decreases in the direction in which the vertical height increases.

In one embodiment of the utility model, the width of the water locking groove at least partially located at the side of the inner stainless steel layer in the circumferential direction of the pot liner is smaller than the equivalent diameter of the water locking groove located at the bottom of the inner stainless steel layer.

In one embodiment of the utility model, the hardness of the metal layer is greater than the hardness of the inner stainless steel layer.

In one embodiment of the utility model, the pot liner further comprises a heat homogenizing layer and an outer stainless steel layer, wherein the heat homogenizing layer is clamped between the inner stainless steel layer and the outer stainless steel layer, the inner stainless steel layer is provided with concave pits with concave and convex outer surfaces, the concave pits are formed by pressing, the water locking grooves are formed at the concave parts, and the concave pits are embedded into the heat homogenizing layer.

In one embodiment of the utility model, a heating device for heating the pot liner is arranged in the pot body, and the projection of the heating device on the pot liner is positioned in the area distributed by the groove matrix.

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

according to the utility model, the groove array is formed by pressing the surface of the inner stainless steel layer, and when rice is cooked, the concave-convex structure of the bionic lotus leaf is formed on the inner surface of the pot liner due to the existence of the water locking grooves and the isolation ribs, so that the contact area between the rice and the pot liner is reduced, the heat directly transferred to the rice by the pot liner is further reduced, and the scorching and sticky phenomenon of the rice due to overhigh temperature is avoided; in addition, the groove array also enables the inner wall of the pot liner to have water storage and water absorption spaces, most of water in the pot liner is absorbed by rice or vaporized into water vapor in the cooking completion stage of the rice, as the water locking grooves are independently arranged and are not communicated with each other, small water drops formed by a small amount of water on the inner wall of the pot liner and the water vapor in a rice gap can be restrained by the isolation ribs and stored in the water locking grooves under the action of surface tension, meanwhile, the width of the isolation ribs is reasonably set, the depth of the water locking grooves is not larger than the width of the isolation ribs, the ratio of the width of the isolation ribs to the equivalent diameter of the water locking grooves is controlled within the range of 0.2 to 1, water drops stored in the water locking grooves and the water drops in the surrounding water locking grooves are polymerized, a water film of a connecting piece is formed, and the water locking grooves are used as anchor points, the uniform spreading and thinning is formed on an inner stainless steel layer, the restraint force of the water locking grooves on the water drops and the water films on the surface of the isolation ribs are prevented from being too thick, the adhesion of the water films on the isolation ribs to the surfaces is smaller than the gravity, the water films on the inner walls of the isolation ribs are not lost, the water films can not be formed, the water films can be adhered to the inner walls of the pot liner can not be formed, and the rice can not be adhered to the inner liner uniformly, the water films can be well, the rice can not be adhered to the inner liner can be formed, and has the water film effect can not be well, and has the effect of rice can not be well, and has the effect can be well formed well, but well has the rice well prevent the rice, but has the effect can be adhered to the inner liner can be well; in addition, through set up the metal level of cover on lock water recess and isolation muscle including the surface on stainless steel layer to make the thickness of metal level be less than the degree of depth of lock water recess, under the prerequisite of guaranteeing non-stick effect, promoted the ability that the pot courage is anti discolour and wear-resisting, solved 0 coating pot courage and easily become colour and fish tail problem in the use.

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 0-coating electric cooker according to an embodiment of the utility model;

FIG. 2 is a schematic view of the boiler bladder and the heating device according to an embodiment of the present utility model;

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

FIG. 4 is a schematic diagram showing the distribution of the water locking grooves according to an embodiment of the present utility model;

FIG. 5 is a schematic view of the bladder according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram showing the distribution of the water locking grooves according to an embodiment of the present utility model;

fig. 7 is a schematic partial structure of the bladder according to an embodiment of the present utility model.

Reference numerals: a pot body 100; a heating device 110; a pot liner 200; an inner stainless steel layer 201; a soaking layer 202; an outer stainless steel layer 203; a metal layer 210; a bottom wall 220; a sidewall 230; a top 231; a waist 232; a transition connection 233; pit 240; a groove array 300; a water locking groove 310; spacer ribs 320; 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.

In the specific embodiment of the utility model, rice cooking is carried out through the 0-coating pot liner, most of the existing pot liners are coated pot liners, namely, a Teflon coating (the chemical name is polytetrafluoroethylene, the English abbreviation is PTFE) is arranged on the inner surface of the pot liner, the 0-coating pot liner is opposite to the coated pot liner, no coating is arranged on a base material of the pot liner, and food is directly contacted and cooked through an inner stainless steel layer of the pot liner during cooking, so that the problems of coating falling off of the coated pot liner and diet health caused by the coating are eliminated.

Referring to fig. 1 to 7, a 0-coating electric cooker provided in this embodiment includes a cooker body 100 and a cooker liner 200 disposed in the cooker body 100, the cooker liner 200 includes an inner stainless steel layer 201, a groove array 300 is formed on a surface of the inner stainless steel layer 201 by pressing, the groove array 300 has a plurality of water locking grooves 310 which are independently disposed, a spacer rib 320 is formed between adjacent water locking grooves 310, a metal layer 210 covering the water locking grooves 310 and the spacer rib 320 is disposed on a surface of the inner stainless steel layer 201, a thickness of the metal layer 210 is smaller than a depth of the water locking grooves 310, a depth of the water locking grooves 310 is not greater than a width of the spacer rib 320, and a ratio of the width of the spacer rib 320 to an equivalent diameter of the water locking grooves 310 is 0.2 to 1; wherein the spacer ribs have a width of 50 μm (micrometers, hereinafter the same) to 300 μm.

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 pot liner 200 can be freely placed in or taken out of the accommodating space to facilitate cleaning thereof. The pot liner 200 is a 0-coating or uncoated pot liner, and can be a ball liner with the side wall protruding outwards or a straight liner with the vertical side wall; an inner stainless steel layer 201 is arranged on the inner side of the pot liner 200, and the inner stainless steel layer 201 is contacted with food materials such as rice, soup and the like; the side of the inner stainless steel layer 201, which is in contact with the food material, is formed into a groove array 300 consisting of a plurality of water locking grooves 310 through pressing treatment, and the solid part between two adjacent water locking grooves 310 forms a separation rib 320. When the pot liner 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 pot liner 300 together define a cooking cavity; the cooker body 100 is also provided with a heating device 110, the heating device 110 is positioned at the bottom or the side part of the accommodating space, can be a heating disc or an electromagnetic wire disc, and heats food materials in the cooking cavity in a mode of heating the cooker liner 200.

It should be noted that, the equivalent diameter is the diameter of the largest circumscribing circle of the shape outline of the water locking groove 310, the shape of the water locking groove 310 is not specifically limited in the present utility model, and in an exemplary embodiment, the water locking groove is rectangular, and the equivalent diameter is equal to the length of the diagonal line of the rectangle, and in another exemplary embodiment, the water locking groove is elliptical, and the equivalent diameter is equal to the length of the major axis of the ellipse. Of course, the water locking groove may be provided in a polygonal shape such as a hexagon or a special-shaped shape such as a drop shape.

In the embodiment, the groove array 300 is formed by pressing the surface of the inner stainless steel layer 201, and when rice is cooked, the concave-convex structure of the bionic lotus leaf is formed on the inner surface of the pot liner due to the existence of the water locking grooves 310 and the isolation ribs 320, so that the contact area between the rice and the pot liner is reduced, the heat directly transferred to the rice by the pot liner is further reduced, and the scorching and sticky phenomenon of the rice due to overhigh temperature is avoided; in addition, the groove array 300 also makes the inner wall of the pot container have water storage and water absorption spaces, and most of water in the pot container is absorbed by rice or vaporized into water vapor in the rice cooking completion stage, because the water locking grooves 310 are independently arranged and are not communicated with each other, small water drops formed by a small amount of water on the inner wall of the pot container 200 and the water vapor in the rice gap can be restrained by the isolation ribs 320 and stored in the water locking grooves 310 under the action of surface tension.

Meanwhile, as the factors influencing the nonsticking performance of the surface of the liner are numerous, the difference of the nonsticking performance of the liner is very large due to different parameters, even a lot of contradictory characteristics can be generated, the width of the isolation rib is positioned in the range of 50-300 mu m, the depth of the water locking groove 310 is not more than the width of the isolation rib 320, the ratio of the width of the isolation rib 320 to the equivalent diameter of the water locking groove 310 is controlled in the range of 0.2-1, the water bead stored in the water locking groove 310 is favorably polymerized with the water bead on the isolation rib 320 and the water bead in the surrounding water locking groove 310 to form a water film of a connecting piece, the water locking groove is taken as an anchor point, even spreading and thinning are avoided on the inner stainless steel layer 201, the restraint force of the water bead by the water locking groove on the surface of the isolation rib and the water bead is easily overcome under the action of gravity, the water film is adhered to the inner stainless steel layer 201, the water bead is excessively large, the water film is adhered to the inner wall of the liner 200, even more compact rice is formed between the liner and the liner, the liner is prevented from being adhered to the inner wall of the liner, the liner is not more effectively adhered to the liner 200, and the rice is well is prevented from being formed, and the effect of the liner is better is prevented from being adhered to the liner to the inner wall of the liner is 200; in addition, through set up the metal level 210 that covers on lock water recess 310 and isolation muscle 320 in the surface of stainless steel layer 201 to make the thickness of metal level 210 be less than lock water recess 310's degree of depth, under the prerequisite of guaranteeing non-stick effect, promoted the ability that the pot courage is anti discolour and wear-resisting, solved 0 coating pot courage and easily become colour and fish tail problem in the use.

It will be appreciated that the spacer ribs 320 may have a width of 50 μm, 80 μm, 100 μm, 120 μm, 150 μm, 180 μm, 200 μm, 250 μm, 300 μm, etc., depending on the actual product requirements; preferably, the width of the spacer ribs 320 is 100 μm to 250 μm, so that the spacer ribs are not too small to cause too high processing cost, and also not too large to cause the difference between the effect of reducing the contact area of rice and the inner wall of the pot liner by the groove array and the optimal effect, so that the surface of the inner stainless steel layer 201 is provided with a proper number of water-proof ribs and water-locking grooves to better fit the polymerization of water drops, and the generation of a water film is more facilitated.

In some embodiments of the present utility model, the spacer ribs 320 have equal widths in the circumferential and axial directions of the bladder 200.

Specifically, referring to fig. 3 and 4, fig. 4 is a schematic partial view of a water locking groove 310 and a spacer rib 320 on a side wall of the liner in fig. 3, wherein an axial direction of the liner is a height direction of the liner, that is, an up-down direction in the drawing, a circumferential direction of the liner is a circumferential direction of a liner wall, that is, a left-right direction in the drawing, a width of the spacer rib 320 in a circumferential direction of the liner 200 is W1, and a width of the spacer rib 320 in an axial direction of the liner 200 is L1, where w1=l1.

The water film that so set up and make the formation is more even for the moisture in the water locking recess 310 is more balanced to other moisture at pot courage axial and ascending effort in circumference, thereby makes the water film better regard water locking recess 310 as the anchor point adhesion including on stainless steel layer 201, reduces the probability that moisture runs off under the effect of gravity in the water film, further improves the infiltration effect of water film, improves the nonstick performance of pot courage.

In some embodiments of the present utility model, the width of the spacer 320 in the oblique direction of the bladder 200 is greater than the width in the circumferential direction and the axial direction of the bladder 200, so as to better generate a water film between the water locking grooves.

Specifically, referring to fig. 4, fig. 4 shows a partial schematic diagram of a water locking groove 310 and an isolation rib 320 on a side wall of a pot liner in fig. 3, the water locking groove is circular, an oblique upward width of the pot liner is a width of the isolation rib between two water locking grooves diagonally arranged, a circumferential width of the isolation rib 320 in the pot liner 200 is W1, an axial width of the isolation rib 320 in the pot liner 200 is L1, and an oblique width of the isolation rib 320 in the pot liner 200 is C1, C1> L1, and C1> W1. Referring to fig. 6, fig. 6 is a schematic partial view of a water locking groove 310 and a spacer rib 320 on a side wall of the pot liner in fig. 5, wherein the water locking groove is elliptical, an oblique upward width of the pot liner is a width of the spacer rib between two water locking grooves diagonally arranged, a circumferential width of the spacer rib 320 on the pot liner 200 is W2, an axial width of the spacer rib 320 on the pot liner 200 is L2, and an oblique width of the spacer rib 320 on the pot liner 200 is C2, C2> L2, and C2> W2.

Further, the ratio of the width of the isolation rib 320 in the oblique direction of the liner 200 to the equivalent diameter of the water locking groove 310 is 0.5 to 1.

The final diameter of the water drops accumulated in the water locking grooves is the equivalent diameter of the notch outline, so that the water drops accumulated in the water locking grooves 310, the water on the isolating ribs 320 and the water drops in the surrounding water locking grooves 310 are polymerized to form a water film of a connecting piece, the water films can be better adhered to the inner stainless steel layer 201 by taking the water locking grooves 310 as anchor points, the infiltration effect of the water film is further improved, and the non-sticking performance of the pot liner is improved.

It will be appreciated that the ratio of the width of the spacer ribs 320 in the oblique direction of the bladder 200 to the equivalent diameter of the water locking groove 310 may be 0.5, 0.6, 0.7, 0.8, 0.9, 1, etc. depending on the actual product.

Preferably, the ratio of the width of the spacer ribs 320 in the inclined direction of the inner container 200 to the equivalent diameter of the water locking groove 310 is in the range of 0.5-0.75, so as to better generate a uniform water film.

Of course, in some alternative embodiments of the present utility model, for the area of the upper side of the pot liner away from the bottom of the pot liner and having a lower temperature, the probability of rice sticking is smaller, or the spacer ribs 320 may be provided in a form that the width of the pot liner 200 in the circumferential direction is smaller than the width of the pot liner in the axial direction, so that part of the water film can be conveyed to the bottom of the pot liner, and the risk of rice sticking at the bottom is reduced.

In some embodiments of the utility model, the thickness of the metal layer 210 is 0.5 μm to 2 μm, such as 0.5 μm, 0.6 μm, 0.7 μm, 0.75 μm, 0.8 μm, 0.9 μm, 1 μm, 1.25 μm, 1.5 μm, 1.75 μm, 2 μm, etc., or the thickness of the metal layer 210 is 0.5% to 2%, such as 0.5%, 0.75%, 1%, 1.25%, 1.5%, 1.75%, 2%, etc., of the depth of the water locking groove 310.

The arrangement can make the metal layer 210 be in a proper thickness, so that the problem that the anti-sticking performance of the liner is reduced due to the fact that the liner cannot effectively protect the groove array caused by too small thickness and the problem that the liner excessively covers the water locking groove 310 caused by too large thickness, so that the space for storing water and absorbing water on the liner wall is reduced.

Preferably, the thickness of the metal layer 210 is 0.7 μm to 0.9 μm, or the thickness of the metal layer 210 is 0.7% to 0.9% of the depth of the water locking groove 310, so as to balance the protection effect of the metal layer on the groove array and the effect of the groove array in generating a water film, and effectively prevent the phenomenon of sticking to the pot.

In some embodiments of the present utility model, the depth of the water locking groove 310 at the bottom of the inner stainless steel layer is H1, and the depth of the water locking groove 310 at the side of the inner stainless steel layer is H2, H1> H2; alternatively, the depth of the water locking groove 310 gradually decreases in a direction in which the vertical height increases.

Specifically, the liner 200 includes a bottom wall 220 and a side wall 230, the bottom wall 220 is disposed at the bottom of the liner 200 and is a plane or a curved surface slightly raised toward the center and having a certain radian, the side wall 230 extends upward from the edge of the bottom wall 220, and includes a top 231, a waist 232 disposed below the top 231, and an arc-shaped transition connection portion 233 connecting the waist 232 and the bottom wall 220. The bottom of the inner stainless steel layer may refer to a region corresponding to the bottom wall 220 of the inner stainless steel layer 201, or may refer to a region corresponding to the bottom wall 220 and the transition connection portion 233 of the inner stainless steel layer 201, which is not particularly limited herein.

The degree of depth of lock water recess is different, can also be different for the adhesive force that the water film provided, the water film that finally forms holds also can be different, so set up can further ensure including stainless steel layer lateral part and interior stainless steel layer bottom department homoenergetic form the water film and can have suitable distribution ratio, avoid too much storage of moisture to lead to this place rice to be too wet including stainless steel layer lateral part, improve the taste of rice, also can make interior stainless steel layer bottom can remain the water film that maintains suitable water yield simultaneously, avoid the higher regional surface moisture of temperature too little and lose the water film in long-time heat preservation, thereby further improve the effect that realizes no coating non-sticking, the convenience of customers washs the inner bag.

In some embodiments of the present utility model, the width of the water locking groove 310 at least partially located at the side of the inner stainless steel layer in the circumferential direction of the inner pot 200 is smaller than the equivalent diameter of the water locking groove 310 located at the bottom of the inner stainless steel layer. Illustratively, referring to FIG. 5, the water locking groove 310 at the side of the inner stainless steel layer is oval, its equivalent width along the circumferential direction of the pot bladder is M (i.e. the minor axis of the oval), the water locking groove 310 at the bottom of the inner stainless steel layer is circular, its equivalent diameter is D, and M.ltoreq.D.

The liner wall of the side part of the inner stainless steel layer is generally vertical and has a larger gradient, the water in the water film easily overcomes the constraint force of the water locking groove and the adhesive force on the surface of the isolation rib under the action of gravity, and flows to the bottom of the liner along the liner wall, so that the water in the area is difficult to keep, even if the heat quantity in the area is relatively little, the problem of sticky rice can be caused, the width of the water locking groove 310 at least part of the side part of the inner stainless steel layer in the circumferential direction of the liner 200 is smaller than the equivalent diameter of the water locking groove 310 at the bottom of the inner stainless steel layer, the width of the water locking groove at the side part of the inner stainless steel layer in the circumferential direction is smaller, the constraint force of the water film is further larger, and the water film is provided with larger adhesive force, so that the water film can be better adhered to the surface of the inner stainless steel layer by taking the water locking groove 310 as an anchor point, the water in the area can be better kept, the phenomenon that the water on the side part of the inner stainless steel layer flows to the bottom too much is avoided, the phenomenon that the water on the side part of the inner stainless steel layer is further prevented, and the non-sticky effect at the side part is further prevented.

In some embodiments of the utility model, the hardness of the metal layer 210 is greater than the hardness of the inner stainless steel layer 201. The arrangement can improve the surface performance of the inner wall of the pot liner and prevent the anti-sticking performance from being attenuated due to the damage of long-term scraping to the groove array 300.

Alternatively, in a specific embodiment, the metal layer 210 is a titanium metal layer, which may be formed by electroplating, physical Vapor Deposition (PVD) coating, or lamination, which is not specifically limited herein. The titanium material has good friction resistance, and the anti-sticking patterns are effectively protected, and meanwhile, the titanium material also has certain antibacterial property, so that the use sanitation of the pot liner 200 is improved. Of course, the metal layer 210 may be a metal or alloy such as chromium, an oxide thereof, a nonmetal such as silica, or the like, and is not particularly limited herein.

It will be appreciated that in some alternative embodiments of the utility model, carburization, etc. may be used without altering the geometry of the inner wall surface to prevent the problem of degradation of the release properties of the bladder from prolonged scratching.

In some embodiments of the present utility model, referring to fig. 7, the pot liner 200 further includes a heat homogenizing layer 202 and an outer stainless steel layer 203, the heat homogenizing layer 202 is sandwiched between the inner stainless steel layer 201 and the outer stainless steel layer 203, the inner stainless steel layer 201 is provided with a concave-convex pit 240 formed by pressing, the concave-convex pit 240 forms the water locking groove 310, and the concave-convex pit 240 is embedded in the heat homogenizing layer 202. That is, the stainless steel layer 201 is pressed into the soaking layer 202 in part.

The inner and outer stainless steel layers can play a role of protecting the heat homogenizing layer 202 at lower cost, the heat homogenizing layer 202 can generate heat homogenizing and heat accumulating effects, the heat homogenizing effect can improve the heat uniformity of the pot liner, the phenomenon that cooked rice is burnt, stuck and sticky due to overhigh local temperature is avoided, the effect of non-sticking of a coating is further improved, the pit 240 which is formed by pressing treatment and is concave outwards and convex inwards is surrounded by the heat homogenizing layer 202, heat accumulated by the heat homogenizing layer 202 can be better transferred to the water locking groove 310 through the pit 240, the water locking groove 310 can better receive heat from a heating device, and three-dimensional heating is better carried out on rice grains, so that the cooking rate and quality of cooked rice are improved. In addition, the inner stainless steel layer 201 and the uniform heating layer 202 can be further attached by the arrangement, and the uniform heating effect of the inner stainless steel layer 201 is further improved.

Preferably, the heat homogenizing layer is made of aluminum materials, so that the cost is low, and the heat homogenizing and accumulating effect is good.

Preferably, the inner stainless steel layer 301 and/or the outer stainless steel layer 303 are made of a food-grade material, such as SUS304 or SUS316L, to improve the sanitation of the liner 300. Of course, other metal materials suitable for food contact may be used, and are not particularly limited herein.

Further, the ratio of the depth of the water locking groove 310 to the thickness of the inner stainless steel layer 201 is 0.02 or more and 0.3 or less.

In some embodiments of the present utility model, referring to fig. 1 and 2, a heating device 110 for heating the pot 200 is disposed in the pot 100, and a projection of the heating device 110 on the pot 200 is located in an area where the groove array is distributed.

Because the heat of the area corresponding to the pot liner 200 and the heating device 110 is most concentrated, the problems of sticking and burning are most likely to occur, and the projection of the heating device 110 on the pot liner 200 is positioned in the area where the groove array 300 is distributed, that is, the area where the groove array 300 is distributed on the pot liner includes the area corresponding to the heating device 110 and the area with slightly lower heat at the periphery of the area, so that the inner stainless steel layer inner surface of the heat concentration area can generate a water film, and the effect of non-sticking without coating is ensured.

In some embodiments of the present utility model, the pot body 100 includes an inner cover and an outer cover, a cooling fan is disposed between the inner cover and the outer cover, and an air outlet passage is disposed in the inner cover and towards the pot liner 200, corresponding to the cooling fan.

At the end of cooking, cool air is orderly blown to the bottom of the pot liner 200 through the cooling fan, the temperature of the pot liner 200 is reduced rapidly, so that vapor in a gap of rice is promoted to be liquefied better and is adhered to the anti-sticking grains to form a layer of water film, the rice is soaked, the adhesion force between the rice and the pot liner is reduced, the effect of non-sticking of a coating is improved, a user can conveniently cook the rice after cooking is finished, and the pot liner is also more beneficial to cleaning of the pot liner by the user.

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, 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 pot 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 pot liner 200, so as to directly cool the bottom wall of the pot 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 a 0 coating electric cooker, includes a kind of deep pot body and locates the internal pot courage of a kind of deep pot, the pot courage includes interior stainless steel layer, its characterized in that, the surface suppression on interior stainless steel layer is formed with the recess matrix, the recess matrix has a plurality of water locking grooves of independent setting, forms the isolation muscle between the adjacent water locking groove, the surface on interior stainless steel layer is equipped with the metal level that covers on water locking groove and isolation muscle, the thickness of metal level is less than the degree of depth of water locking groove, just the degree of depth of water locking groove is not greater than the width of isolation muscle, just the width of isolation muscle is 0.2 to 1 with the equivalent diameter's of water locking groove ratio; wherein the width of the isolation rib is 50 μm to 300 μm.

2. The 0-coating electric rice cooker according to claim 1, wherein the width of the isolating ribs in the circumferential direction and the axial direction of the pot liner are equal.

3. The 0-coat rice cooker of claim 1, wherein the spacer ribs have a greater width in the oblique direction of the inner container than in the circumferential and axial directions of the inner container.

4. The electric cooker with 0 coating according to claim 3, wherein the ratio of the width of the isolating rib in the oblique direction of the cooker inner container to the equivalent diameter of the water locking groove is 0.5 to 1.

5. The 0-coating electric cooker according to claim 1, wherein the thickness of the metal layer is 0.5-2 μm, or the thickness of the metal layer is 0.5-2% of the depth of the water locking groove.

6. The 0-coat rice cooker of claim 1, wherein the depth of the water locking groove at the bottom of the inner stainless steel layer is H1, and the depth of the water locking groove at the side of the inner stainless steel layer is H2, H1> H2; alternatively, the depth of the water locking groove gradually decreases in the direction in which the vertical height increases.

7. The 0-coating electric rice cooker according to claim 1, wherein the width of the water locking groove at least partially located at the side of the inner stainless steel layer in the circumferential direction of the inner container is smaller than the equivalent diameter of the water locking groove located at the bottom of the inner stainless steel layer.

8. The 0-coat rice cooker of claim 1, wherein the hardness of the metal layer is greater than the hardness of the inner stainless steel layer.

9. The 0-coating electric cooker according to claim 1, wherein the inner container further comprises a heat homogenizing layer and an outer stainless steel layer, the heat homogenizing layer is sandwiched between the inner stainless steel layer and the outer stainless steel layer, the inner stainless steel layer is provided with concave-convex-outward pits which are formed by pressing, the concave-outward parts of the pits form the water locking grooves, and the concave-inward parts of the pits are embedded in the heat homogenizing layer.

10. The 0-coat electric cooker according to claim 1, wherein a heating device for heating the pot is arranged in the cooker body, and the projection of the heating device on the pot is positioned in the area of the groove matrix distribution.