Container assembly and heating device

Abstract

The application provides a container assembly and a heating device, the container assembly comprising: a container body, a convex and concave pattern formed by a convex and a groove being arranged on the inner side wall and the inner bottom wall of the container body; a non-stick coating arranged in the groove; the projected area of the non-stick coating on the inner side wall is a, the area of the inner side wall is S1, the projected area of the non-stick coating on the inner bottom wall on the inner bottom wall is b, the area of the inner bottom wall of the container body is S2, and a / S1<=b / S2. According to the scheme, the non-stick coating can be protected by the convex between the grooves, so that the non-stick coating is not easy to be scratched and worn. The heat conduction performance of the non-stick coating is relatively poor compared with the heat conduction performance of the container material, so that the projected area ratio of the non-stick coating on the inner side wall is smaller than the projected area ratio of the non-stick coating on the inner bottom wall, the heat conduction performance of the side wall of the container body can be relatively increased, the heat of the bottom of the container body can be more conducted to the side wall of the container body, and the food materials in the whole container assembly can be heated more uniformly.

Description

Technical Field

[0001] This invention relates to the field of cooking appliances, and more specifically, to a container assembly and a heating device. Background Technology

[0002] In existing technologies, cooking appliances on the market, whether heated by heating elements, hot plates, or electromagnetic heating, all concentrate heat at the bottom of the container, while food further away receives less heat, resulting in uneven heating. This uneven heating causes food to stick to the bottom of the container, burn, or even turn yellow during cooking, significantly impacting the user experience.

[0003] Therefore, how to develop a container that heats more evenly to improve the problems of food sticking to the bottom, burning, and yellowing at the bottom has become an urgent issue to be addressed. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] Therefore, one object of the present invention is to provide a container component.

[0006] Another object of the present invention is to provide a heating device.

[0007] To achieve the above objectives, the present invention provides a container assembly, comprising: a container body, including an inner sidewall and an inner bottom wall, both the inner sidewall and the inner bottom wall being provided with raised and recessed textures, the raised and recessed textures including protrusions and grooves, the grooves being surrounded by the protrusions and the inner wall of the container body; and a non-stick coating disposed within the grooves; wherein, the projected area of ​​the non-stick coating on the inner sidewall is a, the area of ​​the inner sidewall is S1, the projected area of ​​the non-stick coating on the inner bottom wall is b, the area of ​​the inner bottom wall of the container body is S2, and a / S1≤b / S2.

[0008] The container assembly provided by the present invention includes a container body and a non-stick coating and a textured surface disposed on the container body. Protrusions are provided on the inner wall of the container body, and grooves are formed between different protrusions, thus creating the textured surface. In actual production, protrusions can be provided on the inner wall of the container body, and then the protrusions and the interior of the container body can form grooves, meaning the non-stick coating is disposed between one or more protrusions. This arrangement, because the non-stick coating is located within the grooves, allows it to be contained within the grooves. Thus, when using cooking utensils, the protrusions between the grooves protect the non-stick coating, making it less prone to scratches and wear, and thus less susceptible to damage. This ensures the non-stick performance of containers such as inner pots and improves the service life of the container assembly. Furthermore, since the thermal conductivity of the non-stick coating is relatively lower than that of the container material, a / S1 ≤ b / S2. This means that the projected area 'a' of the non-stick coating on the inner sidewall is less than the projected area 'b' of the non-stick coating on the inner bottom wall. This relatively increases the heat-conducting area of ​​the container's sidewalls, allowing more heat from the bottom to be transferred to the sidewalls, resulting in more even heating of the food within the container. On the other hand, it promotes heat transfer from the bottom wall to the sidewalls, reducing heat concentration on the bottom wall and minimizing the risk of the non-stick coating peeling off. A higher proportion of non-stick coating on the bottom wall further enhances its non-stick properties. Additionally, it promotes the dispersion of airflow from the bottom wall to the sidewalls and increases air concentration at the bottom wall, thereby improving the baking performance of the food and enhancing temperature uniformity above the container, ultimately increasing the baking efficiency of the container.

[0009] In this application, all projected areas are orthographic projection areas. For example, the projected area of ​​the non-stick coating on the inner wall is the projected area of ​​the non-stick coating projected along a direction perpendicular to the inner wall.

[0010] In addition, the container component in the above-mentioned technical solution provided by the present invention may also have the following additional technical features:

[0011] In any of the above technical solutions, the container body includes a bottom wall and a side wall, which are connected by an arc-shaped structure. The area of ​​the inner wall surface of the arc-shaped structure is S3, and the projected area of ​​the non-stick coating on the arc-shaped structure is c, where a / S1≤c / S3≤b / S2.

[0012] In this technical solution, the bottom and side walls of the container are connected by an arc-shaped structure. Since the temperature at the arc-shaped structure is generally higher, and a / S1≤c / S3≤b / S2, this means that the area ratio of the non-stick coating on the container decreases sequentially from the side wall to the arc-shaped structure and then to the bottom wall. Because the temperature is higher at the arc-shaped transition section, this design allows the area ratio of the non-stick coating on the arc-shaped structure to transition between the bottom and side walls. This results in a lower area ratio of non-stick coating on the side walls, promoting heat transfer to the side walls. Furthermore, it avoids excessive non-stick coating at the arc-shaped structure, promoting heat transfer to the food and reducing heat concentration at that point, thus reducing the likelihood of non-stick coating peeling off.

[0013] In any of the above technical solutions, the sidewall of the container body includes a first sidewall segment and a second sidewall segment connected to each other. The first sidewall segment is located above the second sidewall segment. The average thickness of the first sidewall segment is less than the average thickness of the second sidewall segment. The projected area of ​​the non-stick coating on the first sidewall segment is e, and the area of ​​the inner wall surface of the first sidewall segment is S4. The projected area of ​​the non-stick coating on the second sidewall segment is f, and the area of ​​the inner wall surface of the second sidewall segment is S5, wherein e / S4≤f / S5.

[0014] In this technical solution, the sidewall of the container is composed of at least two sections. The upper sidewall section has a thinner average thickness, meaning the sidewall thickness decreases towards the top. The projected area of ​​the non-stick coating on the higher first sidewall section is smaller than that on the lower second sidewall section, ensuring that the sidewall thickness and the area ratio of the non-stick coating are compatible; that is, where the sidewall is thinner, the corresponding non-stick coating area is smaller. This design helps to enhance the container's strength, increase thermal conductivity on the sidewall, promote heat transfer in thicker areas, reduce heat concentration, decrease the risk of non-stick coating peeling off, and finally, promote the dispersion of hot air within the container, improving temperature uniformity.

[0015] In any of the above technical solutions, the textured surface includes multiple cells, and each cell includes a cell protrusion and a groove surrounded by the cell protrusion.

[0016] In this technical solution, the raised texture is composed of multiple basic cells, and each basic cell includes a closed or fully enclosed ring of protrusions (i.e., cell protrusions) and a groove enclosed by the protrusions. For example, the cell can be a regular polygon structure. Generally, the protrusions of the cell are closed structures. However, in order to enable communication between adjacent cells, openings can be provided on the sidewalls of the cell protrusions to make the cell protrusions non-closed structures with openings.

[0017] Furthermore, along the height direction of the container, the area enclosed by the protrusions of the cells decreases from bottom to top. Furthermore, the projected area of ​​the protrusions of the cells onto the inner wall of the container is d. On the inner sidewall, the ratio of the sum of d to S1 is greater than the ratio of the sum of d to S2 on the inner bottom wall. Furthermore, along the height direction of the container, the value of d gradually increases from bottom to top.

[0018] In this technical solution, the area of ​​the raised sections decreases from bottom to top. This means the area of ​​the grooves within each cell decreases as you move upwards, and the entire cell becomes smaller towards the top. When the cells are arranged sequentially, the cell density increases upwards, meaning the number of cells increases. This results in a larger proportion of the raised area in the textured surface as you move upwards, increasing the heat transfer area at the top of the container and making the heat conduction more even. Simultaneously, the area of ​​the raised sections on the sidewalls is greater than that on the bottom wall, reducing heat accumulation at the bottom and lowering the risk of the non-stick coating peeling off. This further increases the heat conduction efficiency of the sidewalls, resulting in more even heat conduction throughout the container.

[0019] Among them, the projected area of ​​the cell protrusions on the inner wall of the container is the projected area of ​​the cell protrusions in the direction perpendicular to the inner wall, that is, the projected area of ​​this application is the area of ​​the vertical projection.

[0020] Furthermore, the raised area of ​​the container's sidewalls increases from bottom to top, meaning the raised area at the top of the sidewall is larger than the raised area at the bottom per unit area. This design effectively increases the contact area between the raised areas at the top of the container and the food, while minimizing the coating area. Because a larger raised area reduces the area of ​​the grooves, the coating area is relatively smaller, resulting in better heat conduction. This design makes the heat conduction effect at the top of the container greater than at the bottom. In other words, the larger raised area at the top results in a larger heat dissipation area, while the smaller non-stick coating area at the top further enhances heat conduction. This compensates for the slower heat transfer at the top of the sidewalls, allowing for more even heating of the food from top to bottom. This also improves the scratch resistance of the top of the container, reduces damage to the non-stick coating from utensils, and ultimately leads to better cooked results.

[0021] Furthermore, the circumferential width of the groove formed by the cells is a first width t1, which decreases from bottom to top along the height direction of the container, and / or the first width t1 of the cells on the side walls is smaller than the first width t1 of the cells on the bottom wall. Furthermore, the longitudinal width of the groove formed by the cells is a second width t2, which increases from bottom to top along the height direction of the container, and / or the second width t2 of the cells on the side walls is larger than the second width t2 of the cells on the bottom wall.

[0022] In this technical solution, the circumferential width of the grooves in the cells, i.e., the circumferential width of the grooves on the sidewalls, decreases from bottom to top. That is, the cells become thinner and longer towards the top of the container. The first width t1 of the cells on the sidewalls is smaller than the first width t1 of the cells on the bottom wall, meaning the cells on the sidewalls are thinner and longer than those on the bottom wall. This increases the density of the cells on the sidewalls and the density of the cells at the top of the sidewalls, thus improving the thermal conductivity of the sidewalls. The thermal conductivity improves further towards the top of the sidewalls, thereby increasing the overall thermal conductivity of the sidewalls and making the heat conduction of the container more even. Furthermore, because the thermal conductivity at the top of the sidewalls is better, this design helps reduce heat accumulation at the bottom, reducing the risk of the lower coating peeling off and thus improving non-stick performance. In addition, this design has a larger proportion of raised area at the top, thus enhancing the protection of the non-stick coating and improving the scratch resistance of the upper part of the container to food. This design allows the non-stick coating on the upper sidewall to be divided into finer structures, thus ensuring a more secure adhesion between the non-stick coating and the container wall, reducing the risk of peeling off the upper coating. Furthermore, this design reduces stress concentration at the point of contact between food and the container, improving corrosion resistance.

[0023] Furthermore, when this container is used in an air fryer, that is, when the container is used in an air frying environment, it can promote the flow of heat to the lower part of the container, promote the heating of food, and increase the resistance of heat to the upper part of the container, improve the heat dispersion, and improve the uniformity of the flow of hot air in the container chamber, thereby improving the uniformity of food heating.

[0024] Furthermore, the ratio of the first width t1 of the cells on the bottom wall to the first width t1 of the cells on the side walls is greater than or equal to 1.2 and less than or equal to 1.5. This setting ensures that the difference between the width of the cells on the side walls and those on the bottom wall is moderate. An excessively large difference would increase the scrap rate and easily lead to heat accumulation at the junction of the bottom and side walls, reducing the corrosion resistance of the container. Conversely, an excessively small difference would cause heat to accumulate at the bottom wall, increasing the risk of peeling off the non-stick coating at that location.

[0025] In any of the above technical solutions, the container body includes a bottom wall and side walls, which are connected by an arc-shaped structure. The raised texture includes multiple cells, each cell including a cell protrusion and a groove surrounded by the cell protrusion. The projected area of ​​the non-stick coating within the cell on the inner wall surface of the container body is c. The rate of change of c of at least one cell on the side wall compared to c of at least one cell on the arc-shaped structure is a first rate of change, and the rate of change of c of at least one cell on the arc-shaped structure compared to c of at least one cell on the bottom wall is a second rate of change, with the first rate of change being greater than the second rate of change. Further, the projected area of ​​the cell protrusion on the inner wall surface of the container body is d. The rate of change of d of at least one cell on the side wall compared to d of at least one cell on the arc-shaped structure is a third rate of change, and the rate of change of d of at least one cell on the arc-shaped structure compared to d of at least one cell on the bottom wall is a fourth rate of change, with the third rate of change being greater than the fourth rate of change.

[0026] In this technical solution, the projected area of ​​the non-stick coating within the cell on the inner wall of the container varies. Specifically, within the same cell, the projected area of ​​the non-stick coating on the bottom wall is larger than that on the inner wall of the curved structure, and the projected area of ​​the non-stick coating on the inner wall of the curved structure is larger than that on the side wall. However, the variation in the area of ​​the non-stick coating should not be too large. Ideally, when transitioning from the bottom wall to the curved structure, the rate of change of the area of ​​the non-stick coating in the cell is less than the rate of change of the area of ​​the non-stick coating in the cell when transitioning from the curved structure to the side wall, and / or, the projected area of ​​the protrusion in the cell on the inner wall of the container is d, and the rate of change of the projected area d when transitioning from the curved structure to the side wall is greater than the rate of change of the projected area d when transitioning from the bottom wall to the curved structure. This setting allows for better distribution of the non-stick coating, thereby improving the thermal conductivity of the side wall and making the thermal conductivity of the container more even. Specifically, the higher rate of change at the sidewalls promotes rapid energy transfer from the curved structure and bottom wall to the sidewalls, reducing heat accumulation at these areas, lowering the risk of non-stick coating peeling, and improving the non-stick properties at the curved transition and bottom wall. Conversely, the lower rate of change at the curved structure improves the product's molding performance and prevents heat accumulation during heat transfer from the bottom to the sidewalls, thus enhancing the corrosion resistance of the curved structure. The combined effect of the higher rate of change at the sidewalls and the lower rate of change at the curved structure improves the corrosion resistance of the bottom wall and curved transition, while also promoting heat transfer at the sidewalls. Furthermore, it promotes heat flow to the lower part of the container, facilitating food heating, and increases resistance to heat flow to the upper part of the container, improving heat dispersion and the uniformity of hot air flow within the container chamber, ultimately enhancing the uniformity of food heating.

[0027] Furthermore, on the sidewall above half the height of the container, the projected area of ​​the non-stick coating within the cell on the inner wall of the container is c1. On the area below half the height of the curved structure, the projected area of ​​the non-stick coating within the cell on the inner wall of the container is c2. On the bottom wall of the container, the projected area of ​​the non-stick coating within the cell on the inner wall of the container is c3, where |c1-c2| / c2>|c2-c3| / c3. This design promotes protection of the non-stick coating on the upper part of the container, improves the scratch resistance of the container, enhances heat transfer at the junction of the bottom wall and the curved transition area, reduces heat accumulation, and improves corrosion resistance. Simultaneously, it promotes heat flow from the upper part of the container to the lower part, facilitating the heating of the food, and increases the resistance to heat flow to the upper part of the container, improving heat dispersion, uniformity of hot air flow within the container chamber, and uniformity of food heating.

[0028] Furthermore, on the sidewall above half the height of the container, the projected area of ​​the protruding cell on the inner wall of the container is d1; on the area below half the height of the curved structure, the projected area of ​​the protruding cell on the inner wall of the container is d2; and on the bottom wall of the container, the projected area of ​​the protruding cell on the inner wall of the container is d3, where |d1-d2| / d2>|d2-d3| / d3. This arrangement can promote the protection of the non-stick coating on the upper part of the container, improve the scratch resistance of the container, improve the heat transfer in the connection area between the bottom wall and the curved transition, reduce heat accumulation, and improve corrosion resistance. At the same time, it can also promote the flow of heat from the upper part of the container to the lower part of the container, promote the heating of food, and increase the resistance to heat rising to the upper part of the container, improve the heat dispersion, improve the uniformity of hot air flow in the container chamber, and improve the uniformity of food heating.

[0029] In any of the above technical solutions, the raised texture is formed by combining multiple cells, which are evenly distributed on the inner sidewall and the inner bottom wall. That is, the raised texture is composed of regular cells.

[0030] Furthermore, the cell density on the inner sidewalls of the container is greater than that on the inner bottom wall. This arrangement results in more cells on the sidewalls, thus improving heat conduction and balancing the overall heat conduction of the container.

[0031] Furthermore, along the height of the container, the density of the cells on the side walls increases from bottom to top. This arrangement allows for a greater number of cells at the top of the side walls, thus improving heat conduction on the upper side and balancing the overall heat conduction of the container.

[0032] Furthermore, along the height direction of the container body, the height of the cell protrusion in the thickness direction of the container body's sidewall decreases from bottom to top.

[0033] In this technical solution, the height of the protrusion of the cell in the thickness direction of the side wall of the container body, that is, the size of the protrusion protruding from the inner side wall, becomes smaller as it goes up. In other words, the protrusion effect is less obvious as it goes up. This allows the total area of ​​the protrusion to decrease from bottom to top along the height direction of the container body, so as to improve the heat conduction performance of the upper part of the container body.

[0034] In any of the above technical solutions, the non-stick coating is lower than or flush with the surface where the groove opening is located.

[0035] In this technical solution, the non-stick coating is lower than or flush with the groove opening, meaning the thickness of the non-stick coating is less than or equal to the depth of the groove, and the non-stick coating does not protrude from the groove opening. This allows the non-stick coating to be contained within the groove. When using cooking utensils, the protrusions between the grooves protect the non-stick coating, making it less prone to scratches and wear. This also makes the non-stick coating less susceptible to damage, ensuring the non-stick performance of containers such as inner pots and improving the service life of container components.

[0036] In any of the above technical solutions, a non-stick coating is provided on all the bottom walls and all the side walls of the groove, and the projected area of ​​the non-stick coating in the groove is equal to the sum of the area of ​​the non-stick coating on the bottom wall and the area of ​​the non-stick coating on the side wall.

[0037] In this technical solution, to increase the area of ​​the non-stick coating, a non-stick coating is applied to both the sidewalls and bottomwalls of the groove, thus ensuring the non-stick performance of the container. Within each cell, the projected area of ​​the non-stick coating includes the sum of the areas of the sidewalls and bottomwalls.

[0038] In the above technical solution, the protrusions and grooves on the inner bottom wall of the container are evenly distributed.

[0039] In this technical solution, the protrusions or grooves can be set on the inner bottom wall of the container, or on the inner side wall, or both simultaneously. However, in a specific solution, the protrusions and grooves are evenly distributed. Furthermore, this even distribution of protrusions or grooves on the inner surface of the container ensures uniform contact between the food and the container's inner surface, resulting in more even heating. This design also prevents the tip of the utensils used for stirring from coming into contact with the non-stick coating due to uneven distribution, thus avoiding unnecessary wear and scratches on the non-stick coating. This further improves the lifespan of the container components and prevents scratches and wear on the non-stick coating during cooking, as uneven distribution can leave parts of the container surface unprotected.

[0040] In the above technical solution, the thickness of the sidewall of the container body decreases from bottom to top along the height direction.

[0041] In this technical solution, when cooking food, the heating area is concentrated at the bottom of the container. Because the coating area at the bottom of the container is relatively large, heat transfer to the food is somewhat hindered, resulting in lower heat transfer along the sidewalls and uneven heating of the food. This application designs the sidewalls of the container to be thinner from bottom to top along the height direction, allowing heat to be transferred more quickly from the lower end of the sidewall to the upper end. This results in faster heat transfer to the food, more even heating, and better-tasting cooked food. In other words, this design improves the uniformity of heating within the container.

[0042] In the above technical solution, the protrusions and grooves are formed by etching the container body.

[0043] In this technical solution, the protrusions and grooves are carved into the container body by an etching process. The grooves and protrusions are an integral structure with the container body. The integrated container body has a longer service life, is not easily damaged, and improves the reliability of use.

[0044] In the above technical solution, the shape of the protrusion includes one or more of the following: square, rectangle, rhombus, circle, ellipse, triangle, pentagon, hexagon or ring; and / or the groove and protrusion are integral with the container body, or the groove, protrusion and container body are integrally formed.

[0045] In this technical solution, the protrusions can have many shapes, including squares, rectangles, rhombuses, circles, ellipses, triangles, pentagons, hexagons, curves, and combinations thereof. They can be just one type, or two or more types can coexist. The protrusions can be regularly distributed or randomly distributed. This enriches the shape design of the protrusions, achieving both performance and aesthetic appeal.

[0046] Furthermore, the non-stick coating on the bottom wall of the container can be connected as one piece, or the non-stick coating on the bottom wall of the container can be divided into multiple pieces. Similarly, the non-stick coating on the side walls of the container can be connected as one piece, or the non-stick coating on the side walls of the container can be divided into multiple pieces. That is, the grooves in the container can be interconnected to allow the non-stick coating to be connected as one piece, while simultaneously, the grooves in the container can also be independent of each other, in which case the non-stick coating is also divided into multiple pieces.

[0047] In the above technical solution, the container body is made of one or more of the following materials: aluminum, aluminum alloy, stainless steel, titanium, titanium alloy, and iron. Of course, the container body can also be made of other materials.

[0048] The container assembly includes pot components, such as inner pot components and woks. Of course, the container assembly can also be other structures capable of being heated. In other words, the container assembly is any container that can be heated.

[0049] The second aspect of the present invention provides a heating device, comprising: the container assembly of any one of the technical solutions of the first aspect.

[0050] The heating device provided by the present invention includes the container assembly as described in any of the technical solutions of the first aspect. Therefore, the heating device has all the beneficial effects of the container assembly as described in any of the technical solutions of the first aspect, which will not be elaborated further here.

[0051] In the above technical solution, the heating equipment also includes a heating device for heating the container assembly; the heating equipment includes one of a pressure cooker, a rice cooker, and an air fryer.

[0052] In this technical solution, the heating equipment also includes a heating device for heating the heater assembly, thereby cooking the food inside the heater assembly. The heating device can be one of a pressure cooker, a rice cooker, or an air fryer.

[0053] Additional aspects and advantages of the invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0054] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0055] Figure 1 This is a schematic diagram of the structure of the container component provided in an embodiment of the present invention;

[0056] Figure 2 This is another structural schematic diagram of the container component provided in an embodiment of the present invention;

[0057] Figure 3 This is a schematic diagram of the structure of a container assembly provided in another embodiment of the present invention;

[0058] Figure 4 This is a partial structural diagram of the textured surface of a container assembly provided in an embodiment of the present invention.

[0059] in, Figures 1 to 4 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0060] 1 Container assembly, 12 Container body, 122 Bottom wall, 124 Side wall, 126 Arc structure, 14 Groove, 16 Protrusion, 18 Non-stick coating, 19 Textured surface. Detailed Implementation

[0061] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0062] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0063] The following reference Figures 1 to 4 This is a schematic diagram illustrating the structure of the container component 1 provided in an embodiment of this application.

[0064] Example 1

[0065] like Figure 1 , Figure 2 and Figure 3As shown, an embodiment of the present invention provides a container assembly 1, including a container body 12 and a non-stick coating 18. The container body 12 includes a side wall 124 and a bottom wall 122. The inner side wall of the side wall 124 and the inner bottom wall of the bottom wall 122 are both provided with raised and recessed textures 19. The raised and recessed textures 19 include protrusions 16 and grooves 14. The grooves 14 are formed by the protrusions 16 and the inner wall of the container body 12. The non-stick coating 18 is disposed within the grooves 14. The projected area of ​​the non-stick coating 18 on the inner side wall is a, the area of ​​the inner side wall is S1, the projected area of ​​the non-stick coating 18 on the inner bottom wall is b, and the area of ​​the inner bottom wall of the container body 12 is S2, where a / S1 ≤ b / S2.

[0066] The container assembly 1 provided by the present invention includes a container body 12 and a non-stick coating 18 and a textured surface 19 disposed on the container body 12. Protrusions 16 are provided on the inner wall of the container body 12, and grooves 14 are formed between different protrusions 16, thus forming the textured surface 19. In actual production, protrusions 16 can be provided on the inner wall of the container body 12, and then the protrusions 16 and the interior of the container body 12 can form grooves 14, that is, the non-stick coating 18 is disposed between one or more protrusions 16. With this arrangement, since the non-stick coating 18 is located within the grooves 14, it can be contained within the grooves 14. Thus, when using cooking utensils, the protrusions 16 between the grooves 14 can protect the non-stick coating 18, making it less prone to scratches and wear, and thus less susceptible to damage. This ensures the non-stick performance of containers such as inner pots and improves the service life of the container assembly 1. Furthermore, since the thermal conductivity of the non-stick coating 18 is relatively poor compared to that of the container material, a / S1≤b / S2. This means that the projected area a of the non-stick coating 18 on the inner wall surface is less than the projected area a of the non-stick coating 18 on the inner bottom wall surface of the container body 12. This relatively increases the thermal conductivity of the sidewall 124 of the container body 12, allowing more heat from the bottom of the container body 12 to be conducted to the sidewall 124, resulting in more even heating of the food within the entire container assembly 1. On the other hand, it promotes heat transfer from the bottom wall 122 to the sidewall 124, reducing heat concentration on the bottom wall 122 and decreasing the risk of the non-stick coating 18 peeling off. Furthermore, the higher proportion of the non-stick coating 18 on the bottom wall 122 improves the non-stick performance at that location. Furthermore, it can promote the dispersion of air flow from the bottom wall 122 to the side wall 124 and increase the concentration of air at the bottom wall 122, thereby improving the baking of food by the container assembly 1 and improving the uniformity of temperature above the container, thus improving the baking heating efficiency of the container assembly 1.

[0067] In the above embodiments, such as Figure 3As shown, the container body 12 includes a bottom wall 122 and a side wall 124. The bottom wall 122 and the side wall 124 are connected by an arc-shaped structure 126. The area of ​​the inner wall surface of the arc-shaped structure 126 is S3, and the projected area of ​​the non-stick coating 18 on the arc-shaped structure 126 is c, where a / S1≤c / S3≤b / S2.

[0068] In this embodiment, the bottom wall 122 and side wall 124 of the container body 12 are connected by an arc-shaped structure 126. Since the temperature at the arc-shaped structure 126 is generally higher, and a / S1≤c / S3≤b / S2, this means that the area ratio of the non-stick coating 18 on the container body 12 decreases sequentially from the side wall 124 to the arc-shaped structure 126 and then to the bottom wall 122. Because the temperature at the arc-shaped transition is higher, this design allows the area ratio of the non-stick coating on the arc-shaped structure 126 to transition between the bottom wall 122 and the side wall 124. This results in a lower area ratio on the upper side of the arc-shaped structure 126, promoting heat transfer upwards. Furthermore, it avoids excessive coating on the arc-shaped structure 126, thus promoting heat transfer to the food and reducing heat concentration and non-stick coating peeling.

[0069] In the above embodiment, the sidewall 124 of the container body 12 includes a first sidewall segment and a second sidewall segment connected to each other. The first sidewall segment is located above the second sidewall segment. The average thickness of the first sidewall segment is less than the average thickness of the second sidewall segment. The projected area of ​​the non-stick coating 18 on the first sidewall segment is e, and the area of ​​the inner wall surface of the first sidewall segment is S4. The projected area of ​​the non-stick coating 18 on the second sidewall segment is f, and the area of ​​the inner wall surface of the second sidewall segment is S5, wherein e / S4≤f / S5.

[0070] In this embodiment, the sidewall 124 of the container body 12 is composed of at least two segments. The upper sidewall segment has a thinner average thickness, meaning the thickness of the sidewall 124 decreases towards the top. The projected area of ​​the non-stick coating 18 on the higher first sidewall segment is smaller than that on the lower second sidewall segment, ensuring that the thickness of the sidewall 124 and the area ratio of the non-stick coating 18 are compatible; that is, where the sidewall 124 is thinner, the corresponding proportion of the non-stick coating 18 is smaller. This arrangement helps to enhance the strength of the container body 12, increases thermal conductivity on the sidewall 124, promotes heat transfer in thicker areas, reduces heat concentration, decreases the risk of the non-stick coating 18 peeling off, and finally promotes the dispersion of hot air within the container body 12, improving the temperature uniformity within the container body 12.

[0071] The first sidewall segment and the second sidewall segment are two segments arbitrarily divided along the height direction of the sidewall. For example, the first sidewall segment and the second sidewall segment can be divided by 1 / 2 of the sidewall height. Of course, they can also be divided by 1 / 3.

[0072] In the above embodiments, such as Figure 2 As shown, the non-stick coating 18 is lower than or flush with the groove opening of the groove 14, that is, the thickness of the non-stick coating 18 is less than or equal to the depth of the groove 14, and the non-stick coating 18 does not protrude from the groove opening of the groove 14. This allows the non-stick coating 18 to be contained within the groove 14. When using cooking utensils, the protrusions 16 between the grooves 14 can protect the non-stick coating 18, making it less prone to scratches and wear. This also makes the non-stick coating 18 less susceptible to damage, thereby ensuring the non-stick performance of containers such as inner pots and improving the service life of container components 1.

[0073] In the above embodiments, such as Figure 2 As shown, all bottom walls and side walls of the groove 14 are provided with a non-stick coating 18. The projected area of ​​the non-stick coating 18 in the groove 14 is equal to the sum of the area of ​​the non-stick coating 18 on the bottom wall and the area of ​​the non-stick coating 18 on the side wall.

[0074] In the above embodiments, the protrusion 16 and the groove 14 are formed by the container body 12 through an etching process.

[0075] In this embodiment, the protrusion 16 and the groove 14 are engraved by the container body 12 using an etching process. The groove 14 and the protrusion 16 are integrally formed with the container body 12. The integrally formed container body 12 has a longer service life, is not easily damaged, and improves the reliability of use.

[0076] In the above embodiments, the shape of the protrusion 16 includes one or more of the following: square, rectangular, rhomboid, circular, elliptical, triangular, pentagonal, hexagonal, or annular; and / or the groove 14 and the protrusion 16 are integrally formed with the container body 12, or the groove 14, the protrusion 16, and the container body 12 are integrally formed.

[0077] In this embodiment, the protrusion 16 can have many shapes, including square, rectangular, rhomboid, circular, elliptical, triangular, pentagonal, hexagonal, curved, and combinations thereof. It can be just one of these shapes, or two or more can coexist. The protrusions 16 can be regularly distributed or randomly distributed. This enriches the shape design of the protrusions 16, achieving both performance and aesthetic appeal.

[0078] Furthermore, the non-stick coating 18 on the bottom wall 122 of the container body 12 can be connected to each other as a whole, or the non-stick coating 18 on the bottom wall 122 of the container body 12 can be divided into multiple pieces. Similarly, the non-stick coating 18 on the side wall 124 of the container body 12 can be connected to each other as a whole, or the non-stick coating 18 on the side wall 124 of the container body 12 can be divided into multiple pieces. That is, the grooves 14 of the container body 12 can be interconnected so that the non-stick coating 18 is connected as a whole; at the same time, the grooves 14 of the container body 12 can also be independent of each other, in which case the non-stick coating 18 is also divided into multiple pieces.

[0079] In the above embodiments, the container body 12 is made of one or more of the following materials: aluminum, aluminum alloy, stainless steel, titanium, titanium alloy, and iron. Of course, the container body 12 can also be made of other materials.

[0080] Container component 1 includes a pot body component, such as an inner pot component or a wok. Of course, container component 1 can also be other structures capable of being heated. That is, container component 1 can be any container that can be heated.

[0081] Example 2

[0082] like Figure 3 As shown, in this embodiment, the raised texture 19 is composed of multiple basic cells, and each basic cell includes a cell protrusion and a groove surrounded by the cell protrusion. For example, the cell can be a regular polygon structure. In order to enable communication between adjacent cells, openings can also be provided on the sidewalls 124 of the protrusion, so that the protrusion becomes a non-closed structure with openings.

[0083] Furthermore, along the height direction of container 12, the area enclosed by the protrusions in the cells decreases from bottom to top. Furthermore, within each cell, the projected area of ​​the protrusions on the inner wall of container 12 is d. On the inner sidewalls, the ratio of the sum of d to S1 is greater than the ratio of the sum of d to S2 on the inner bottom wall. Furthermore, along the height direction of container 12, the value of d gradually increases from bottom to top.

[0084] In this embodiment, the area enclosed by the raised cells decreases from bottom to top, meaning the area of ​​the grooves within the cells decreases upwards, and the entire cell becomes smaller towards the top. This allows for a denser arrangement of cells upwards, resulting in a larger number of cells. Consequently, the area of ​​the raised sections 16 in the textured pattern 19 increases upwards, thereby increasing the heat transfer area at the top of the container 12 and achieving more balanced heat conduction. Simultaneously, the area of ​​the raised sections 16 on the sidewall 124 is greater than that on the bottom wall 122, reducing heat accumulation at the bottom and lowering the risk of the non-stick coating 18 peeling off. This further increases the heat conduction efficiency of the sidewall 124, resulting in more balanced heat conduction in the container 12.

[0085] Furthermore, on the side wall surface of the container body 12, the projected area of ​​the raised cells increases from bottom to top. This means that the raised area at the upper end of the side wall 124 is larger than the raised area at the lower end per unit area. This design effectively increases the contact area between the raised area 16 at the upper end of the container and the food, while minimizing the coating area. Because a larger raised area reduces the area of ​​the groove 14, the coating area is relatively smaller, resulting in better heat conduction. This design makes the heat conduction effect at the upper part of the container body 12 greater than at the lower part. It can also be understood that the larger raised area at the top results in a larger heat dissipation area, while the smaller area of ​​the non-stick coating 18 at the top leads to better heat conduction. This compensates for the slower heat transfer at the upper part of the side wall 124, allowing for more even heating of the food at both the top and bottom. This improves the scratch resistance of the upper part of the container body 12, reduces damage to the non-stick coating 18 from utensils like spatulas, and ultimately leads to better cooked food.

[0086] Furthermore, such as Figure 4 As shown, the circumferential width of the groove in the cell is a first width t1. Along the height direction of the container body 12, the first width t1 decreases from bottom to top, and / or the first width t1 of the cells on the side wall 124 is smaller than the first width t1 of the cells on the bottom wall 122. Further, the longitudinal width of the groove in the cell is a second width t2. Along the height direction of the container body 12, the second width t2 increases from bottom to top, and / or the second width t2 of the cells on the side wall 124 is greater than the second width t2 of the cells on the bottom wall 122.

[0087] In this embodiment, the circumferential width of the grooves in the cells, i.e., the circumferential width of the grooves on the sidewall 124, decreases from bottom to top. That is, the cells become increasingly slender towards the top of the container body 12. The first width t1 of the cells on the sidewall 124 is smaller than the first width t1 of the cells on the bottom wall 122, meaning the cells on the sidewall 124 are more slender than those on the bottom wall 122. This increases the density of cells on the sidewall 124, particularly at the top, thereby improving the thermal conductivity of the sidewall 124. The thermal conductivity of the sidewall 124 improves towards the top, thus increasing the overall thermal conductivity efficiency of the sidewall 124 and making the thermal conductivity of the container body 12 more even. Furthermore, this arrangement, due to the better thermal conductivity at the top of the sidewall 124, helps reduce heat accumulation at the bottom, reducing the risk of the lower coating peeling off and thus improving non-stick properties. Furthermore, this design, with a larger proportion of the raised area at the top, enhances the protection of the non-stick coating 18 and improves the scratch resistance of the upper part of the container to food. This design also divides the non-stick coating 18 above the side wall 124 into finer structures, allowing it to adhere more firmly to the container wall and reducing the risk of peeling off the upper coating. Additionally, this design reduces stress concentration at the contact point between the food and the container body 12, improving corrosion resistance.

[0088] Furthermore, when the container body 12 is used in an air fryer, that is, when the container body 12 is used in an air frying environment, it can promote the flow of heat to the lower part of the container, promote the heating of the food, and increase the resistance of heat to the upper part of the container, improve the heat dispersion, and improve the uniformity of the flow of hot air in the container chamber, thereby improving the uniformity of food heating.

[0089] Furthermore, the ratio of the first width t1 of the cell on the bottom wall 122 to the first width t1 of the cell on the side wall 124 is greater than or equal to 1.2 and less than or equal to 1.5. That is, the widths of the cells on the bottom wall 122 and the side wall 124 should not differ too much, and this range makes the width ratio of the two more moderate, thus making it easier to process.

[0090] In any of the above embodiments, the container body 12 includes a bottom wall 122 and a side wall 124, which are connected by an arc-shaped structure 126. The projected area of ​​the non-stick coating 18 in the cell on the inner wall of the container body 12 is c. The rate of change of c on the side wall 124 compared to c on the arc-shaped structure 126 is a first rate of change, and the rate of change of c on the arc-shaped structure 126 compared to c on the bottom wall 122 is a second rate of change, with the first rate of change being greater than the second rate of change. And / or in the cell, the projected area of ​​the protrusion on the inner wall of the container body 12 is d. The rate of change of d on the side wall 124 compared to d on the arc-shaped structure 126 is a third rate of change, and the rate of change of d on the arc-shaped structure 126 compared to d on the bottom wall 122 is a fourth rate of change, with the third rate of change being greater than the fourth rate of change.

[0091] In this embodiment, the projected area of ​​the non-stick coating 18 within the cell on the inner wall of the container body 12 varies. Specifically, within the same cell, the projected area of ​​the non-stick coating 18 on the bottom wall 122 is larger than that on the inner wall of the arc-shaped structure 126, and the area on the inner wall of the arc-shaped structure 126 is larger than that on the side wall 124. However, the change in the area of ​​the non-stick coating 18 should not be too large. Ideally, when the bottom wall 122 transitions to the arc-shaped structure 126, the rate of change of the area of ​​the non-stick coating 18 in the cell is less than the rate of change of the area of ​​the non-stick coating 18 in the cell when the arc-shaped structure 126 transitions to the side wall 124. At the same time, the projected area protruding from the cell onto the inner wall of the container body 12 is d, and when the arc-shaped structure 126 transitions to the side wall 124, the rate of change of the projected area d is greater than the rate of change of the projected area d when the bottom wall 122 transitions to the arc-shaped structure 126. This configuration allows for better distribution of the non-stick coating 18, thereby improving the thermal conductivity of the sidewall 124 and resulting in more even heat conduction in the container body 12. Specifically, the larger rate of change at the sidewall 124 promotes rapid energy transfer from the curved structure 126 and bottom wall 122 to the sidewall 124, reducing heat accumulation at these locations, lowering the risk of non-stick coating peeling, and improving the non-stick properties at these locations. Furthermore, the smaller rate of change at the curved structure 126 improves the product's molding performance and prevents heat accumulation during heat transfer from the bottom to the sidewall 124, thus enhancing the corrosion resistance of the curved structure 126. At the same time, the combined effect of the larger rate of change at the side wall 124 and the smaller rate of change at the arc structure 126 can improve the corrosion resistance of the bottom wall 122 and the arc structure 126, while promoting heat transfer at the side wall 124; furthermore, it can promote the flow of heat to the lower part of the container, promote the heating of food, and increase the resistance of heat to the upper part of the container, improve the heat dispersion, improve the uniformity of hot air flow in the container chamber, and improve the uniformity of food heating.

[0092] Furthermore, on the sidewall 124 above half the height of the container body 12, the projected area of ​​the non-stick coating 18 within the cell on the inner wall of the container body 12 is c1. On the area of ​​the arc-shaped structure 126 below half its height, the projected area of ​​the non-stick coating 18 within the cell on the inner wall of the container body 12 is c2. On the bottom wall 122 of the container body 12, the projected area of ​​the non-stick coating 18 within the cell on the inner wall of the container body 12 is c3, where |c1-c2| / c2>|c2-c3| / c3. This arrangement can promote the protection of the non-stick coating 18 on the upper part of the container, improve the scratch resistance of the container body 12, improve the heat transfer in the connection area between the bottom wall 122 and the arc-shaped structure 126, reduce heat accumulation, and improve corrosion resistance. At the same time, it can also promote the flow of heat from the upper part of the container to the lower part of the container, promote the heating of food, increase the resistance of heat to the upper part of the container, improve the heat dispersion, improve the uniformity of hot air flow in the container chamber, and improve the uniformity of food heating.

[0093] Furthermore, on the side wall 124 above 1 / 2 the height of the container body 12, in the cell, the projected area of ​​the protrusion on the inner wall of the container body 12 is d1; on the area of ​​the arc structure 126 below 1 / 2 the height of the arc structure 126, in the cell, the projected area of ​​the protrusion on the inner wall of the container body 12 is d2; on the bottom wall 122 of the container body 12, in the cell, the projected area of ​​the protrusion on the inner wall of the container body 12 is d3, where |d1-d2| / d2>|d2-d3| / d3.

[0094] In any of the above embodiments, the raised texture 19 is formed by a combination of multiple cells, which are evenly distributed on the inner sidewall and the inner bottom wall. That is, the raised texture 19 is composed of regular cells.

[0095] In any of the above embodiments, the cell density on the side wall of the container 12 is greater than the cell density on the inner bottom wall. This arrangement results in more cells on the side wall 124, thus improving the heat conduction of the side wall 124 and thereby balancing the overall heat conduction of the container 12.

[0096] In any of the above embodiments, along the height direction of the container body 12, the density of the cells on the side wall surface of the container body 12 increases from bottom to top. This arrangement allows for a greater number of cells on the side wall 124 towards the top, thus improving the heat conduction effect on the upper side of the side wall 124 and thereby balancing the overall heat conduction effect of the container body 12.

[0097] In any of the above embodiments, along the height direction of the container body 12, the height of the protrusion on the side wall 124 of the container body 12 decreases from bottom to top in the thickness direction.

[0098] In this embodiment, the height of the protrusion in the thickness direction of the side wall 124 of the container body 12, that is, the size of the protrusion 16 protruding from the inner side wall, decreases as it rises. In other words, the protrusion effect becomes less noticeable as the protrusion 16 rises. This allows the total area of ​​the protrusion 16 to decrease from bottom to top along the height direction of the container body 12, thereby improving the thermal conductivity of the upper part of the container body 12.

[0099] In this embodiment, to increase the area of ​​the non-stick coating 18, the non-stick coating 18 is applied to both the sidewalls and bottomwalls of the groove 14, thereby ensuring the non-stick properties of the container body 12. Within each cell, the projected area of ​​the non-stick coating 18 includes the sum of the areas of the sidewalls and bottomwalls.

[0100] In the above embodiments, the protrusions 16 or grooves 14 can be provided on the inner bottom wall of the container body 12, or on the inner side wall, or simultaneously on both the inner bottom wall and the inner side wall of the container body 12. However, in a specific embodiment, the protrusions 16 and grooves 14 are evenly distributed. This even distribution of protrusions 16 or grooves 14 on the inner surface of the container body 12 ensures uniform contact between the food and the inner surface of the container body 12, resulting in more even heating. Furthermore, this arrangement prevents the tip of the utensils used to stir the food from contacting the non-stick coating 18 on the surface of the container body 12 due to uneven distribution, thus avoiding unnecessary wear and scratches on the non-stick coating 18. This further improves the service life of the container assembly 1 and prevents the non-stick coating 18 from being unprotected due to uneven distribution, which could lead to scratches and wear during cooking.

[0101] Example 3

[0102] In Embodiment 3, the difference lies in that the thickness of the sidewall 124 of the container body 12 decreases from bottom to top along the height direction. The other structures of the container body are the same as in Embodiment 1 or Embodiment 2.

[0103] In this embodiment, when cooking food, the heating area is concentrated at the bottom of the container body 12. Because the coating area at the bottom of the container body 12 is relatively large, heat transfer to the food is somewhat hindered, resulting in lower heat transfer along the side wall 124 and uneven heating of the food. This application designs the side wall 124 of the container body 12 to be thinner from bottom to top along the height direction, allowing heat to be transferred more quickly from the lower end of the side wall 124 to the upper end. This results in faster heat transfer to the food, more even heating, and better-tasting cooked food. In other words, this design improves the heating uniformity of the container.

[0104] In the above embodiment, the outer wall surface of the container body 12 is provided with mating textures, and the grooves and protrusions of the mating textures are provided in a one-to-one correspondence with the grooves 14 and protrusions 16 of the embossed texture 19.

[0105] In any of the above schemes, the wall thickness of the container body 12 is greater than or equal to 0.5 mm and less than or equal to 1.5 mm.

[0106] In this embodiment, when the wall thickness of the container body 12 is set to between 0.5 and 1.5 mm, during the manufacturing process of the container body 12, after etching the texture 19 on the inner wall of the container body 12 through an etching process, and then stretching and forming, the texture 19 on the outer side of the container body 12 will be naturally formed due to the force, without the need for additional setting, thereby reducing the process flow and saving costs.

[0107] An embodiment of the second aspect of the present invention provides a heating device (not shown in the figure), comprising: a container assembly 1 as described in any embodiment of the first aspect.

[0108] The heating device provided by the present invention includes the container assembly 1 as described in any embodiment of the first aspect. Therefore, the heating device has all the beneficial effects of the container assembly 1 as described in any embodiment of the first aspect, which will not be repeated here.

[0109] In the above embodiments, the heating device further includes a heating element for heating the heater assembly, thereby cooking the food inside the heater assembly. The heating device can be one of a pressure cooker, a rice cooker, or an air fryer.

[0110] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0111] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0112] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A container component, characterized in that, include: The container body includes an inner sidewall and an inner bottom wall. Both the inner sidewall and the inner bottom wall are provided with textured patterns. The textured patterns include protrusions and grooves. The grooves are formed by the protrusions and the inner wall of the container body. A non-stick coating is provided within the groove; Wherein, the projected area of ​​the non-stick coating on the inner sidewall is a, the area of ​​the inner sidewall is S1, the projected area of ​​the non-stick coating on the inner bottom wall is b, and the area of ​​the inner bottom wall of the container is S2, wherein a / S1≤b / S2; The container body includes a bottom wall and a side wall, which are connected by an arc-shaped structure. The textured surface includes multiple cells, each cell including a cell protrusion and a groove surrounded by the cell protrusion. The projected area of ​​the non-stick coating within the cell on the inner wall of the container is c. The rate of change of c of at least one cell on the side wall compared to c of at least one cell on the arc-shaped structure is a first rate of change. The rate of change of c of at least one cell on the arc-shaped structure compared to c of at least one cell on the bottom wall is a second rate of change. The first rate of change is greater than the second rate of change, and / or The projected area of ​​the cell protruding on the inner wall of the container is d. Among the cells, the rate of change of d of at least one cell on the side wall compared to the rate of change of d of at least one cell on the arc structure is the third rate of change, and the rate of change of d of at least one cell on the arc structure compared to the rate of change of d of at least one cell on the bottom wall is the fourth rate of change. The third rate of change is greater than the fourth rate of change.

2. The container assembly according to claim 1, characterized in that, The area of ​​the inner wall of the arc-shaped structure is S3, and the projected area of ​​the non-stick coating on the arc-shaped structure is c, where a / S1≤c / S3≤b / S2.

3. The container assembly according to claim 1, characterized in that, The sidewall of the container body includes a first sidewall segment and a second sidewall segment connected to each other. The first sidewall segment is located above the second sidewall segment, and the average thickness of the first sidewall segment is less than the average thickness of the second sidewall segment. The projected area of ​​the non-stick coating on the first sidewall segment is e, the area of ​​the inner wall surface of the first sidewall segment is S4, the projected area of ​​the non-stick coating on the second sidewall segment is f, and the area of ​​the inner wall surface of the second sidewall segment is S5, where e / S4≤f / S5.

4. The container assembly according to claim 1, characterized in that, Along the height direction of the container body, the area enclosed by the protruding cell decreases from bottom to top.

5. The container assembly according to claim 4, characterized in that, The projected area of ​​the cell protrusion on the inner wall of the container is d. On the inner side wall, the ratio of the sum of d to S1 is greater than the ratio of the sum of d to S2 on the inner bottom wall.

6. The container assembly according to claim 5, characterized in that, Along the height direction of the container body, the value of d gradually increases from bottom to top.

7. The container assembly according to claim 4, characterized in that, The circumferential width of the groove formed by the cells is a first width t1. Along the height direction of the container body, the first width t1 decreases from bottom to top, and / or the first width t1 of the cells on the side wall is smaller than the first width t1 of the cells on the bottom wall.

8. The container assembly according to claim 7, characterized in that, The ratio of the first width t1 of the cell on the bottom wall to the first width t1 of the cell on the side wall is greater than or equal to 1.2 and less than or equal to 1.

5.

9. The container assembly according to claim 4, characterized in that, The longitudinal width of the groove formed by the cells is the second width t2. Along the height direction of the container, the second width t2 increases from bottom to top, and / or the second width t2 of the cells on the side wall is greater than the second width t2 of the cells on the bottom wall.

10. The container assembly according to any one of claims 1 to 9, characterized in that, On the sidewall above 1 / 2 the height of the container, the projected area of ​​the non-stick coating within the cell on the inner wall of the container is c1; on the area below 1 / 2 the height of the arc-shaped structure, the projected area of ​​the non-stick coating within the cell on the inner wall of the container is c2; on the bottom wall of the container, the projected area of ​​the non-stick coating within the cell on the inner wall of the container is c3, where |c1-c2| / c2>|c2-c3| / c3; and / or On the side wall above 1 / 2 of the container's height, the projected area of ​​the protruding cell on the inner wall of the container is d1. On the area below 1 / 2 of the arc-shaped structure, the projected area of ​​the protruding cell on the inner wall of the container is d2. On the bottom wall of the container, the projected area of ​​the protruding cell on the inner wall of the container is d3, where |d1-d2| / d2>|d2-d3| / d3.

11. The container assembly according to any one of claims 1 to 9, characterized in that, The textured surface is formed by combining multiple cells, which are evenly distributed on the inner sidewall and the inner bottom wall. The density of cells on the inner sidewall of the container is greater than the density of cells on the inner bottom wall.

12. The container assembly according to any one of claims 1 to 9, characterized in that, The textured surface is formed by combining multiple cells, which are evenly distributed on the inner sidewall and the inner bottom wall. Along the height direction of the container body, on the side wall surface of the container body, the density of the cells increases from bottom to top, and / or along the height direction of the container body, the height of the protrusions of the cells in the thickness direction of the side wall of the container body decreases from bottom to top.

13. The container assembly according to any one of claims 1 to 9, characterized in that, The non-stick coating is lower than or flush with the surface where the groove opening is located; and / or The non-stick coating is provided on all the bottom walls and all the side walls of the groove. The projected area of ​​the non-stick coating in the groove is equal to the sum of the area of ​​the non-stick coating on the bottom wall and the area of ​​the non-stick coating on the side wall.

14. A heating device, characterized in that, include: The container assembly as described in any one of claims 1 to 13.

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