CN219629384U - Non-stick pot liner - Google Patents

Abstract

The utility model discloses a non-stick pan liner, which comprises an outer stainless steel layer, a heat homogenizing layer and an inner stainless steel layer, wherein the surface of the inner stainless steel layer is provided with a groove array, the groove array is provided with micron-sized grooves, the grooves are mutually independent, the surface of the groove array is provided with a metal protection film, the thickness of the metal protection film is smaller than the depth of any groove in the groove array, and the surface of the metal protection film is provided with nanoscale anti-sticking patterns. According to the utility model, the metal protective film is arranged on the surface of the groove array, and the nanoscale anti-sticking patterns are arranged on the surface of the metal protective film, so that the metal protective film can play a role in protection, and the improvement of the non-sticking performance of the whole pot liner can be further promoted.

Description

Non-stick pot liner

Technical Field

The utility model belongs to the field of household appliances, and particularly relates to a non-stick pot liner.

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, 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 a non-stick pan liner to solve at least one of the above 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 non-stick pan courage, includes outer stainless steel layer, even heat layer and interior stainless steel layer, wherein, the surface on interior stainless steel layer is equipped with the recess array, the recess array has the recess of micron order, the recess mutually independent sets up, the surface of recess array is equipped with the metal protection film, the thickness of metal protection film is less than the depth of arbitrary recess in the recess array, the surface of metal protection film is equipped with nanometer antiseized line.

In one embodiment of the utility model, the non-stick pan liner comprises a bottom wall and a side wall, wherein the bottom wall is provided with a first groove array, at least part of the side wall is provided with a second groove array, and the equivalent width of the grooves in the second groove array along the circumferential direction of the pan liner is not larger than the equivalent diameter of the grooves in the first groove array.

In one embodiment of the utility model, a spacer rib is arranged between two adjacent grooves, and the nanoscale anti-sticking pattern is arranged on the spacer rib.

In one embodiment of the utility model, the nanoscale anti-sticking feature has an area that is greater than the area of the groove.

In one embodiment of the present utility model, the nanoscale anti-sticking pattern is disposed corresponding to and within the groove.

In one embodiment of the utility model, the metal protective film has a thickness of 0.5 micrometers to 2.5 micrometers.

In one embodiment of the utility model, the metal protective film is a Cr layer fused to the surface of the inner stainless steel layer.

In one embodiment of the present utility model, the Cr layer is a CrFeNi alloy layer and a CrFe alloy layer in this order from the inside to the outside.

In one embodiment of the utility model, the equivalent diameter of the grooves is 100 microns to 600 microns.

In one embodiment of the utility model, the nanoscale anti-sticking pattern comprises a plurality of protrusions or depressions having a first direction parallel to the surface of the metal protective film and a second direction perpendicular to the first direction; the maximum dimension of the protrusions or recesses in the first direction is not more than 900 nanometers and/or the maximum dimension of the protrusions or recesses in the second direction is not more than 900 nanometers.

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

according to the utility model, the groove array is arranged on the inner stainless steel layer, so that the geometric structure of the surface of the inner stainless steel layer is changed, the inner stainless steel layer has good water storage performance, and the wettability and the non-tackiness of the stainless steel surface are improved, compared with the smooth stainless steel surface: in the cooking completion stage of rice, the arrangement of the groove array can reduce the direct contact area of the rice and the pot liner, so that the heat directly transferred to the rice by the pot liner is reduced, the phenomenon that the rice is burnt and stuck due to overhigh temperature is avoided, and as the grooves of the micron level are independently arranged and are not communicated with each other, a small amount of water left in the pot liner and water vapor in a rice gap enter the grooves to be condensed to form small water drops which can be restrained by groove walls and stored in the grooves under the action of surface tension, a layer of water wetting film is stably formed between the rice and the pot liner, and can infiltrate the rice and the inner wall of the pot liner, so that the adhesion force between the rice and the pot liner is reduced, the rice can not be stuck on the inner wall of the pot liner, and the effect of non-coating and non-sticking is realized; meanwhile, the scratch resistance of the surface of the pot liner is improved by arranging the metal protective film on the surface of the groove array, so that the problem of attenuation of the anti-sticking effect of the groove array caused by long-term scratch is avoided, and the pot liner is more reliable and durable; in addition, the thickness of the metal protection film is smaller than the depth of any groove in the groove array, so that the metal protection film can be prevented from filling up the groove, and the groove can be ensured to effectively play a role; in addition, through set up nano-scale antiseized line on the metal protection film surface that forms, avoided metal protection film surface too smooth for the pot courage internal surface further coarsens, has further improved the wettability on pot courage surface, and moisture can be easier attached, and then can more stable formation water film in courage wall department, has also further reduced the area of contact of rice and pot courage simultaneously, thereby makes the metal protection film can play the guard action, can further promote the promotion of the holistic nonsticking property of pot courage again.

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 view of the non-stick liner according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of the non-stick bladder according to one embodiment of the present utility model;

FIG. 3 is a schematic view of a partial enlarged structure at A in FIG. 2;

FIG. 4 is a schematic view of a partial enlarged structure at B in FIG. 2;

fig. 5 is a schematic structural view of a cooking appliance with a non-stick liner according to an embodiment of the present utility model.

Reference numerals: a pan body 100; a heating device 110; a non-stick pan liner 200; an inner stainless steel layer 201; a soaking layer 202; an outer stainless steel layer 203; a groove 204; spacer ribs 205; a metal protective film 206; a bottom wall 210; a first groove array 211; a sidewall 220; a second groove array 221; a mouth 222; a waist portion 223; a transition connection 224; a cooking cavity 230; a pot cover 300.

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 non-stick pan liner provided in this embodiment includes an outer stainless steel layer 203, a heat homogenizing layer 202 and an inner stainless steel layer 201, a groove array is provided on the surface of the inner stainless steel layer 201, the groove array has a micrometer-sized groove 204, the grooves 204 are set independently, a metal protection film 206 is provided on the surface of the groove array, the thickness of the metal protection film 206 is smaller than the depth of any groove in the groove array, and a nanometer anti-sticking pattern is provided on the surface of the metal protection film 206.

The form of the heat equalizing layer 202 is not particularly limited, and may be a heat conductive metal material such as aluminum, or a liquid having high heat conductivity, so long as the heat can be uniformly distributed. The groove array may be etched on a metal plate, or etched on the inner surface of the formed pot, or formed by other processes, such as photolithography, embossing, laser etching, etc., which are not limited herein.

By providing an array of grooves on the inner stainless steel layer 201, the geometry of the surface of the inner stainless steel layer 201 is changed, so that the inner stainless steel layer 201 has good water storage performance, and the wettability and non-tackiness of the stainless steel surface are improved, compared with a smooth stainless steel surface: in the cooking completion stage of rice, the arrangement of the groove array can reduce the direct contact area of the rice and the pot liner, so that the heat directly transferred to the rice by the pot liner is reduced, the phenomenon that the rice is burnt and stuck due to overhigh temperature is avoided, and as the grooves 204 in the micron level are independently arranged and are not communicated with each other, a small amount of water left in the pot liner and water vapor in a rice gap enter the grooves 204 to be condensed to form small water drops which can be restrained by groove walls and reserved in the grooves 204 under the action of surface tension, a layer of water wetting film is stably formed between the rice and the pot liner, the water wetting film can infiltrate the rice and the inner wall of the pot liner, the adhesion force between the rice and the pot liner is reduced, the rice cannot be stuck on the inner wall of the pot liner, and the effect of non-coating and non-sticking is realized; meanwhile, the scratch resistance of the surface of the pot liner is improved by arranging the metal protective film on the surface of the groove array, so that the problem of attenuation of the anti-sticking effect of the groove array caused by long-term scratch is avoided, and the pot liner is more reliable and durable; in addition, the thickness of the metal protection film is smaller than the depth of any groove in the groove array, so that the metal protection film can be prevented from filling up the groove 204, and the groove can be ensured to effectively play a role; in addition, through set up nanoscale antiseized line at the surface of the metal protection film 206 that forms, avoided the metal protection film surface too smooth for the pot courage internal surface further coarsens, has further improved the wettability on pot courage surface, and moisture can be easier attached, and then can form the water film in courage wall department more stable, has also further reduced the area of contact of rice and pot courage simultaneously, thereby makes the metal protection film can play the guard action, can further promote the promotion of the holistic nonstick performance of pot courage again.

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.

Preferably, the inner stainless steel layer 201 and/or the outer stainless steel layer 203 are made of a food-grade material, such as SUS304 or SUS316L, to improve the sanitary properties of the bladder. Of course, other metal materials suitable for food contact may be used, and are not particularly limited herein.

Preferably, the thickness of the outer stainless steel layer 203 is not smaller than the thickness of the inner stainless steel layer 201, so as to ensure that the outer stainless steel layer can play a better role in protection.

In some embodiments of the present utility model, the surface of the metal protection film 206 is provided with scale marks, so as to provide cooking instructions for users, and facilitate users to add the rice water in a reasonable proportion before cooking, so that rice with better quality can be cooked, and the use experience of users is improved.

Furthermore, the scale marks are provided with the maximum cooking rice quantity, and the rice quantity corresponding to the maximum cooking rice quantity is smaller than the distribution height of the groove arrays on the liner wall of the liner. Therefore, the probability that rice grains correspond to the groove array can reach the maximum when rice is cooked, so that as many rice grains as possible can be soaked by the formed water film, and the non-sticky effect is ensured.

Preferably, the scale marks are formed by a laser recording processing mode, so that the formed scale marks are clear and distinguishable and cannot fall off.

In some embodiments of the present utility model, referring to fig. 1 and 2, the non-stick liner includes a bottom wall 210 and a side wall 220, the bottom wall 210 is provided with a first groove array 211, at least part of the side wall 220 is provided with a second groove array 221, and an equivalent width of the grooves in the second groove array 221 along the circumferential direction of the liner is not greater than an equivalent diameter of the grooves in the first groove array 211.

Because the heat in the bottom wall area is most concentrated, the problems of sticking and burning are most likely to occur, the first groove array 211 is arranged in the area, and the inner surface of the pot liner in the area can be ensured to maintain a water film with certain water quantity, so that the nonstick performance of the area is ensured, the side wall of the pot liner is generally vertical and has a larger gradient, liquid such as water left in the pot liner and small water drops formed by water vapor easily flows along the side wall to the bottom wall, so that the water in the area is difficult to retain, the problem of sticking and burning rice is also likely to occur even if the heat in the area is relatively small, the second groove array 221 is arranged in the area, the equivalent width of the grooves in the second groove array 221 along the circumferential direction of the pot liner is not larger than the equivalent diameter of the grooves in the first groove array 211, the width of the grooves in the area in the circumferential direction is smaller, the constraint force of the grooves in the area is further larger, the water drops can be better retained, the bottom wall of the water drops at the second groove array 221 is avoided, the water drops can be prevented from flowing to the bottom wall of the second groove array 221, the water drops can be prevented from being retained under certain conditions, the water quantity can be prevented from being adhered to the first groove array and the surface of the second groove array 211 has a proper proportion, and the water can be further conveniently cleaned by users.

Specifically, referring to fig. 1, 2 and 3, the bottom wall 210 is disposed at the bottom of the non-stick liner and is a plane or a curved surface slightly raised toward the center and having a certain radian, the side wall 220 is disposed by extending upward from the edge of the bottom wall 210, and includes a mouth 222 disposed at the upper portion of the non-stick liner, a waist 223 disposed below the mouth 222, and an arc-shaped transitional connection portion 224 connecting the waist 223 and the bottom wall 210, where the equivalent diameter of the groove in the first groove array 211 (i.e., the maximum circumscribing diameter of the groove profile) is D, the equivalent width of the groove in the second groove array 221 along the axial direction of the liner is D1, and the equivalent width along the circumferential direction of the liner is D2, where D2 is less than or equal to D.

Optionally, the ratio B1 of the circumferential dimension D2 of the grooves in the second groove array 221 to the dimension D of the grooves in the first groove array 211 is not less than 0.3. So can make the recess be in suitable scope along pot courage circumference equivalent width, ensure that it has great confining force to the water droplet, make the better deposit of moisture, also can not be because of the too little effect that can't play the deposit moisture of circumference width simultaneously.

Optionally, the ratio of the dimension D1 of the grooves in the second groove array 221 along the axial direction of the pot liner to the dimension D2 thereof along the circumferential direction of the pot liner is B2,1< B2 is less than or equal to 2. So in order to avoid circumference direction undersize, axial direction oversized recess that leads to the lateral wall become long and thin, form the slit, avoid producing recess card stopper starch granule or other food material residues, make the courage wall unable sanitization, easy dirty and easy to collect, influence food sanitation, easy problem of crossing smell, improve user's use experience.

It will be appreciated that the B1 values may be 0.4, 0.6, 0.7, 0.8, 0.9, 1, etc., and the B2 values may be 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, etc., depending on the needs of the actual product.

Further, the area where the first groove array 211 and the second groove array 221 are distributed, i.e. the distribution area of the total groove array, covers 2/3 or more of the inner surface of the pot liner.

In some embodiments of the present utility model, referring to fig. 4, a spacer 205 is disposed between two adjacent grooves 204, and the nano-scale anti-sticking pattern is disposed on the spacer 205.

The arrangement of the grooves 204 and the ribs 205 can reduce the direct contact area between rice and the pot liner, so that the heat directly transferred to the rice by the pot liner is reduced, the rice cannot be sticky or brown due to the fact that the rice is close to the inner surface of the pot liner, and the contact area can be further reduced by arranging the nano-scale anti-sticking patterns on the metal protective film corresponding to the ribs 205, so that the non-sticky effect is further improved.

Preferably, the width of the ribs 205 is 100 micrometers to 500 micrometers, so that the distribution of the water-moist film on the inner surface of the pot liner is uniform, and the whole non-sticking effect is stable.

Further, the area of the nanoscale anti-sticking patterns is larger than that of the grooves.

In some embodiments of the utility model, the nanoscale anti-sticking features are disposed in correspondence with the grooves 204 and within the grooves 204. The roughness in the groove 204 is increased by the arrangement of the nanoscale anti-sticking patterns, the capability of storing and storing moisture is further improved, so that moisture can be more easily attached compared with a smooth metal surface, a water film can be formed at the liner wall more stably, and the effect of non-coating and non-sticking is improved.

Of course, in some alternative embodiments, the nano-scale anti-sticking patterns may be disposed on the metal protection film corresponding to the ribs 205, and the nano-scale anti-sticking patterns may be disposed on the metal protection film corresponding to the grooves 204, which is not limited herein.

In some embodiments of the utility model, the metal protective film 206 has a thickness of 0.5 microns to 2.5 microns. In other words, the thickness of the metal protective film is H.ltoreq.H.ltoreq.2.5. Mu.m. The thickness of the metal protection film is controlled within the range, so that the covering effect and cost control of the metal protection film are better, the effective protection effect cannot be achieved due to the fact that the thickness is too small, the original coarse structure in the groove 204 cannot be excessively covered due to the fact that the thickness is too large, and the capacity of storing moisture of the groove 204 is reduced.

It is understood that the thickness H of the metal protective film may take on values of 0.8 μm, 1 μm, 1.2 μm, 1.5 μm, 1.8 μm, 2 μm, 2.3 μm, etc., according to the needs of the actual product.

In some embodiments of the utility model, the metal protective film 206 is a Cr layer fused to the inner stainless steel layer surface. The fusion means that the Cr layer is attached to the surface of the inner stainless steel layer, and the Cr layer and the inner stainless steel layer are combined together at the contact surface.

Preferably, the metal protection film 206 is covered on the pot substrate by physical vapor deposition (Physical Vapor Deposition abbreviated as PVD), which is a method of vaporizing a coating material by physical method (such as sputtering) and depositing a film on the surface of the substrate.

Specifically, in the PVD processing process, target materials such as chromium (Cr) are bombarded by plasma argon (Ar+) ions and electrons, and small molecular groups of targets are sputtered on the surface of a pot base material (an inner stainless steel layer), and the combination of the surface of the base material and the molecular groups is high and approaches to the metal bond energy, so that the metal protective layer is difficult to separate; in addition, the surface of the Cr layer has higher Vickers hardness which can be several times that of the base material, has good surface compactness, has ultrahigh wear resistance and scratch resistance, and can play a role in maintaining a lasting non-stick effect; in addition, the formed Cr layer is stable, no reaction occurs after the temperature is high, the phenomenon similar to the bluing of the stainless steel surface can not occur, and the use experience of a user is improved.

Further, the Cr layer is a CrFeNi alloy layer and a CrFe alloy layer in sequence from inside to outside.

It is understood that in some alternative embodiments of the present utility model, the metal protection film 206 may also be a titanium metal layer, which may be formed by electroplating, PVD coating, or lamination, which is not specifically limited herein. The titanium material has higher hardness, good friction resistance and certain antibacterial property, and is beneficial to improving the sanitation of the pot liner.

In some embodiments of the utility model, the equivalent diameter of the groove 204 is 100 microns to 600 microns. Therefore, the equivalent diameter of the groove is in a reasonable range, so that rice is not easy to be blocked into the groove due to overlarge diameter, and water cannot be stored due to overlarge diameter, and the formation of a water film is not influenced; meanwhile, at least two or more grooves can be covered by a single rice grain, as rice grains are different in form in the pot liner, all grooves 204 cannot be communicated with a rice gap and play a role in storing liquid such as condensed water, but by reasonably controlling the diameter of the grooves 204, an anti-sticking cavity can be formed between a part of grooves 204 and the rice grains, even if the rice grains seal a part of water vapor in the anti-sticking cavity under the action of self gravity, the pressure of other rice grains and other factors, the water vapor contained in the anti-sticking cavity can jack up the rice grains after being heated and expanded, and the rice is assisted to be separated, so that the rice grains are matched with water films formed at other grooves, the adhesion force between rice and the pot liner is further reduced, even if part of grooves 204 cannot play a role in storing water vapor, the non-sticking of rice can be promoted, and the non-sticking effect of a non-coating layer is improved.

It will be appreciated that the equivalent diameter of the recess 204 may be 100, 150, 200, 300, 500, 600 microns, etc., depending on the actual product requirements.

Further, the depth of the grooves 204 is preferably 30 microns to 150 microns, such as 30, 50, 80, 100, 120, 150 microns, etc.

In some embodiments of the utility model, the nanoscale anti-blocking pattern comprises a plurality of protrusions or recesses having a first direction parallel to the surface of the metal protective film and a second direction perpendicular to the first direction; the maximum dimension of the protrusions or recesses in the first direction is not more than 900 nanometers and/or the maximum dimension of the protrusions or recesses in the second direction is not more than 900 nanometers.

It will be appreciated that the maximum dimension in the first direction and/or the maximum dimension in the second direction may be 50, 90, 100, 130, 180, 250, 300, 500, 800, 900 nanometers, etc., depending on the needs of the actual product.

Preferably, the largest dimension in the first direction and/or the largest dimension in the second direction is in the range of 300 nm to 800 nm. The setting makes nanoscale antiseized line can be in suitable size scope for nanoscale antiseized line is unlikely to too little to lead to processing cost too high, also is unlikely to too big to lead to starch granule to block into easily, and then cause the pot courage surface to be difficult to wash, simultaneously, this size also can make metal protection film surface form protruding or recess of suitable quantity, and then effectively reduce rice and pot courage inner wall's area of contact, and can make metal protection film coarser, avoid metal protection film surface too smooth, make moisture more easily adhere, thereby more stable formation water film, make pot courage inner surface have better ability of storing moisture and nonstick performance.

It should be noted that, the specific form of the nano-scale anti-sticking pattern is not specifically limited, for example, in a specific embodiment, the nano-scale anti-sticking pattern has a plurality of grooves which are independently arranged, physical intervals are arranged between the grooves, the maximum dimension in the first direction is the equivalent diameter of the grooves, and the maximum dimension in the second direction is the depth of the grooves; in another specific embodiment, the nanoscale anti-sticking pattern comprises a plurality of segments of annular grooves, the largest dimension in the first direction is the width of the grooves, and the largest dimension in the second direction is the depth of the grooves; in another specific embodiment, the nanoscale anti-sticking feature has a plurality of independent protrusions, the largest dimension in the first direction being the equivalent diameter of the protrusions, and the largest dimension in the second direction being the height of the protrusions.

The nanoscale anti-sticking features may be formed by photolithographic processing, or may be etched or otherwise processed, and are not limited in this regard.

Of course, in some alternative embodiments of the present utility model, instead of machining the groove arrays described in the above embodiments into the inner wall of the inner stainless steel layer, a metal protective film may be directly plated onto the inner stainless steel layer, and a nano-scale anti-sticking pattern may be provided on the metal protective film.

Referring to fig. 5, the present utility model further provides a cooking appliance with a non-stick liner, which includes a pot body 100, a pot cover 300 covered on the pot body 100, and a non-stick liner 200 disposed in the pot body 100, wherein the non-stick liner 200 is a non-stick liner according to any one of the embodiments.

Specifically, a cover which can be opened and closed at the top of the pot body 100 is provided with a pot cover 300, and the pot cover 300 and the pot body 100 can be hinged or can be arranged in a split mode; the pot body 100 has a cylindrical accommodating space, and the non-stick pot liner 200 can be freely placed in the accommodating space or taken out from the accommodating space to facilitate cleaning; when the non-stick liner 200 is placed in the accommodating space and the pot cover 300 is covered on the pot body 100, the pot cover 300 and the non-stick liner 200 jointly define the cooking cavity 230; the heating device 110 is disposed in the pot body 100, the heating device 110 is disposed at the bottom or side of the accommodating space, and can be a heating plate or an electromagnetic wire coil, and heats the food in the cooking cavity 230 by heating the non-stick pot liner 200.

Optionally, the pot body 100 includes an inner cover and an outer casing, a cooling fan is disposed between the inner cover and the outer casing, an air outlet channel is disposed on the inner cover corresponding to the cooling fan, and the air outlet channel is disposed towards the non-stick liner 200.

At the end of cooking, cool air is orderly blown to the bottom of the non-stick pan liner 200 by the cooling fan, so that the temperature of the non-stick pan liner 200 is quickly reduced, water vapor in a rice gap is promoted to be better liquefied and attached to the groove array, the formation of a water film is more facilitated, the effect of coating-free non-stick is improved, a user can conveniently cook rice after cooking is finished, and the user can also clean the pan liner more conveniently.

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. 5, 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 non-stick 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 non-stick pot liner 200, so as to directly cool the bottom wall of the pot liner with higher temperature, and the effect is better.

It will be appreciated that the cooking apparatus may be cooled naturally or by some other cooling method 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 non-stick pan courage, includes outer stainless steel layer, even heat layer and interior stainless steel layer, its characterized in that, the surface on interior stainless steel layer is equipped with the recess array, the recess array has the recess of micron order, the recess mutually independent sets up, the surface of recess array is equipped with the metal protection film, the thickness of metal protection film is less than the depth of arbitrary recess in the recess array, the surface of metal protection film is equipped with nanometer antiseized line.

2. The non-stick pan bladder of claim 1 wherein said non-stick pan bladder comprises a bottom wall and a side wall, said bottom wall is provided with a first array of grooves, at least a portion of said side wall is provided with a second array of grooves, and the equivalent width of the grooves in said second array of grooves along the circumference of the pan bladder is no greater than the equivalent diameter of the grooves in the first array of grooves.

3. The non-stick pan liner of claim 1, wherein a spacer rib is disposed between two adjacent grooves, and the nanoscale anti-sticking pattern is disposed on the spacer rib.

4. The non-stick container of claim 3, wherein the nanoscale anti-sticking feature has an area greater than an area of the groove.

5. The non-stick pan bladder of claim 1 wherein said nanoscale anti-stick features are disposed in correspondence with and within said grooves.

6. The non-stick bladder of claim 1 wherein said metal protective film has a thickness of 0.5 microns to 2.5 microns.

7. The non-stick pan bladder of claim 1 wherein said metal protective film is a Cr layer fused to the surface of the inner stainless steel layer.

8. The non-stick pan bladder of claim 7 wherein the Cr layer is a CrFeNi alloy layer and a CrFe alloy layer in that order from the inside to the outside.

9. The non-stick bladder of claim 1 wherein said grooves have an equivalent diameter of 100 microns to 600 microns.

10. The non-stick container of claim 1, wherein the nanoscale anti-sticking pattern comprises a plurality of protrusions or depressions having a first direction parallel to the surface of the metal protective film and a second direction perpendicular to the first direction; the maximum dimension of the protrusions or recesses in the first direction is not more than 900 nanometers and/or the maximum dimension of the protrusions or recesses in the second direction is not more than 900 nanometers.