Anti-sticking electric cooker

Abstract

The anti-sticking electric cooker comprises a cooker body, an installation cavity with an upward opening is formed in the cooker body, an inner container is arranged in the installation cavity in a sleeved mode, a heating assembly which is located in the installation cavity and used for heating the inner container is arranged between the bottom of the inner container and the cooker body, and a plurality of protrusions are evenly distributed on the bottom face in the inner container. A gap is formed between every two adjacent protrusions to form a flow guide net for guiding water flow, and the top face and the side face of each protrusion are both upwards-protruding curved faces. Compared with the prior art, the inner container has the advantages that the bottom surface of the whole inner container is uniformly heated, the possibility of sticking to a pan is reduced, meanwhile, water boils in the flow guide net to form steam, the steam flows in the flow guide net, and high-temperature steam fluctuates to separate the top of the bulge from stuck food, so that the effect of preventing sticking to the pan is achieved, and the anti-sticking function exists all the time; and the anti-sticking function failure caused by scratching does not need to be worried.

Description

Technical Field

[0001] This utility model relates to the field of electric rice cooker technology, and in particular to a non-stick electric rice cooker. Background Technology

[0002] An electric rice cooker is a cooking tool used for cooking rice, but with technological advancements, it is no longer limited to just cooking rice; it can also perform various other processing functions such as steaming, stewing, simmering, and braising. It not only cooks food thoroughly but also keeps it warm. It is clean and hygienic to use, produces no pollution, and saves time and effort, making it an indispensable tool for modern household chores.

[0003] Traditional rice cookers often experience food sticking during use, which not only affects the taste of the cooked food but also leads to food waste. To solve this problem, some rice cookers on the market have added an anti-stick coating to the inner pot. Although this does prevent sticking, the anti-stick coating is easily peeled off when the rice cooker is used and cleaned due to scratches, and the food sticking problem recurs. Utility Model Content

[0004] This invention addresses the problem that the non-stick coating of rice cookers is prone to peeling off during cleaning, causing sticking. The technical problem this invention aims to solve is to provide a non-stick rice cooker.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a non-stick electric rice cooker, including a pot body, the pot body having an upward-opening mounting cavity, an inner pot being sleeved inside the mounting cavity, a heating component for heating the inner pot being provided between the bottom of the inner pot and the pot body, the bottom surface of the inner pot having a number of protrusions evenly distributed, the spacing between each adjacent protrusion forming a guide net for guiding water flow, and the top and side surfaces of the protrusions being upward-convex curved surfaces.

[0006] A further preferred embodiment of this utility model is as follows: the protrusions are arranged in a ring array with the center of the bottom surface of the inner liner as the center, forming several rings of protrusions with different radii. There is an annular gap between each pair of adjacent rings of protrusions, and there is a lateral gap between adjacent protrusions in each ring of protrusions. The annular gaps between the lateral gaps are connected to form the flow guide net.

[0007] A further preferred embodiment of this invention is that the width of each annular spacing is equal.

[0008] A further preferred embodiment of this invention is that the minimum width between two adjacent protrusions is less than the width of a grain of rice.

[0009] A further preferred embodiment of this utility model is that the heating component is composed of several annular heating tubes, and the number of the annular heating tubes is equal to the number of the raised rings and corresponds one-to-one.

[0010] A further preferred embodiment of this utility model is that the protrusion is composed of multiple side surfaces and a top surface connected to the top of the multiple side surfaces.

[0011] A further preferred embodiment of this utility model is that the intersection of the side surfaces and the intersection of the side surface and the top surface are both smoothly transitioned curved surfaces.

[0012] A further preferred embodiment of this utility model is that the inner surface of the inner pot and the outer surface of the protrusion are both coated with polytetrafluoroethylene (PTFE) for non-stick coating by a spraying process.

[0013] A further preferred embodiment of this utility model is: it also includes a cover that fits over the opening of the mounting cavity, wherein an annular step is provided on the side wall of the opening of the mounting cavity, and the lower edge of the cover rests on the step.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. The inner pot has several raised protrusions evenly distributed on its bottom surface, with spacing between adjacent protrusions forming a water-guiding mesh. When cooking rice in the inner pot, the water at the bottom flows throughout the mesh, preventing areas from being too dry and burning or sticking to the pot when heated by the heating element. Simultaneously, the water flow is accompanied by heat transfer, ensuring even heating of the entire bottom surface of the inner pot and reducing the likelihood of sticking. Furthermore, the water boils within the mesh, forming steam. This steam flows through the mesh, and the high-temperature steam fluctuations separate the tops of the protrusions from the stuck food, preventing sticking. This anti-stick function is always active, so there's no need to worry about scratches causing it to malfunction.

[0016] 2. By making the raised top and sides into upward-convex curved surfaces, the contact area between the inner pot and the rice grains can be reduced, further avoiding the possibility of rice grains sticking to the pot. Attached Figure Description

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be regarded as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0018] Figure 1 This is a three-dimensional structural diagram of a preferred embodiment of the present invention;

[0019] Figure 2 This is a top view of a preferred embodiment of the present invention;

[0020] Figure 3This is a preferred embodiment of the present utility model. Figure 2 Sectional view at point AA;

[0021] Figure 4 This is a preferred embodiment of the present utility model. Figure 3 A magnified view of a section at point B in the middle;

[0022] Figure 5 This is a top perspective view of the inner liner of a preferred embodiment of the present invention;

[0023] Figure 6 This is a three-dimensional structural diagram of the protrusion in a preferred embodiment of the present invention.

[0024] In the diagram: 1. Pot body; 11. Mounting cavity; 12. Annular step; 2. Inner liner; 3. Protrusion; 31. Side; 32. Top surface; 4. Guide net; 41. Annular spacing; 42. Lateral spacing; 5. Annular heating element; 6. Lid. Detailed Implementation

[0025] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0026] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0027] This embodiment mainly describes a non-stick rice cooker, as detailed below:

[0028] like Figures 1 to 5As shown, the non-stick rice cooker includes a pot body 1, an inner pot 2, and a lid 6. The pot body 1 has an upward-opening mounting cavity 11 for mounting the inner pot 2. The inner pot 2 is fitted inside the mounting cavity 11 and is used to hold rice grains or other food to be cooked. The lid 6 covers the opening of the mounting cavity 11. An annular step 12 is provided on the side wall of the opening of the mounting cavity 11. The lower edge of the lid 6 rests on the step. The lid 6 serves to prevent sticking and keep the food warm. A heating element is located in the mounting cavity 11 between the bottom of the inner pot 2 and the pot body 1. The heating element is used to heat the inner pot 2. Several protrusions 3 are evenly distributed on the bottom surface of the inner pot 2. There is a gap between each adjacent protrusion 3 to form a guide net 4 for guiding water flow. The guide net 4 is used to guide the water at the bottom of the inner pot 2. When cooking rice in the inner pot 2, the water at the bottom of the inner pot 2 flows around in the guide net 4, which avoids local water shortages that may cause food to burn or stick to the pot under the heating of the heating element. At the same time, the water flow is accompanied by heat transfer, which makes the bottom surface of the entire inner pot 2 evenly heated and reduces the possibility of sticking. At the same time, when cooking food, the water boils in the guide net 4 to form steam. The steam flows in the guide net 4, and the high temperature steam fluctuations separate the top of the protrusions 3 from the food that is stuck to the pot, which plays a role in preventing sticking. The top surface 32 and side surface 31 of the protrusion 3 are both upwardly convex curved surfaces. The protrusion 3 is composed of multiple side surfaces 31 and a top surface 32 connected to the top of the multiple side surfaces 31. The intersections of the side surfaces 31 and 31, and the intersections of the side surfaces 31 and 32, are all smoothly transitioned curved surfaces. The upwardly convex curved surfaces of the top surface 32 and side surfaces 31, and the smoothly transitioned curved surfaces at the intersections of the side surfaces 31 and 31, can reduce the contact area between the inner pot 2 and the rice grains, further avoiding the possibility of rice grains sticking to the pot. The anti-stick function of this utility model is always present, so there is no need to worry about scratches causing the anti-stick function to fail.

[0029] Specifically, to improve the anti-stick effect and ensure that the rice grains on the bottom surface of the inner pot 2 are heated evenly, the protrusions 3 are arranged in a ring array with the center of the bottom surface of the inner pot 2 as the center, forming several rings of protrusions 3 with different radii. There is an annular spacing 41 between each pair of adjacent rings of protrusions 3, and the width of each annular spacing 41 is equal. There is a lateral spacing 42 between adjacent protrusions 3 in each ring of protrusions 3. The annular spacings 41 that are close to each other in the lateral spacing 42 are connected to form a guide net 4.

[0030] Specifically, in order to prevent rice grains from getting stuck in the gap between two adjacent protrusions 3 and being difficult to remove, the minimum width between two adjacent protrusions 3 is less than the width of the rice grain. An adjacent protrusion 3 refers to a single protrusion 3 and any one of its front, back, left, or right sides.

[0031] like Figure 3 , Figure 4As shown, in order to make the rice grains inside the inner pot 2 heat more evenly, the heating component consists of several ring-shaped electric heating tubes 5. The number of ring-shaped electric heating tubes 5 is equal to the number of the 3 raised rings and corresponds one-to-one.

[0032] Specifically, to further improve the anti-stick performance of the inner pot 2, the inner surface of the inner pot 2 and the outer surface of the protrusion 3 are coated with polytetrafluoroethylene (PTFE) for anti-sticking through a spraying process. Because PTFE has anti-stick, heat-resistant and corrosion-resistant properties, it is often used as an anti-stick coating in the cookware industry. When the PTFE coating is scratched off during use, the guide net 4 formed by the protrusion 3 and the protrusion 3 will play an anti-sticking function.

[0033] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] The above provides a detailed description of the non-stick rice cooker provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A non-stick rice cooker, comprising a pot body, wherein the pot body has an upward-opening mounting cavity, an inner pot is fitted inside the mounting cavity, and a heating component for heating the inner pot is disposed between the bottom of the inner pot and the pot body, located within the mounting cavity, characterized in that: The inner bottom surface of the inner liner has several protrusions evenly distributed, and there is a gap between each adjacent protrusion to form a guide net for guiding water flow. The top and side surfaces of the protrusions are both upward convex curved surfaces.

2. The non-stick rice cooker according to claim 1, characterized in that: The protrusions are arranged in a ring array with the center of the bottom surface of the inner liner as the center, forming several rings of protrusions with different radii. There is an annular gap between each pair of adjacent rings of protrusions, and there is a lateral gap between adjacent protrusions in each ring of protrusions. The annular gaps that are close to each other in the lateral gaps are connected to form the flow guide net.

3. The non-stick rice cooker according to claim 2, characterized in that: The width of each annular spacing is equal.

4. The non-stick rice cooker according to claim 2, characterized in that: The minimum width between two adjacent protrusions is less than the width of a grain of rice.

5. The non-stick rice cooker according to claim 2, characterized in that: The heating assembly consists of several annular heating tubes, the number of which is equal to and corresponds one-to-one with the number of raised rings.

6. The non-stick rice cooker according to claim 1, characterized in that: The protrusion consists of multiple sides and a top surface connected to the top of the multiple sides.

7. The non-stick rice cooker according to claim 6, characterized in that: The intersections of the side surfaces and the top surface are all smoothly transitioned curved surfaces.

8. The non-stick rice cooker according to claim 1, characterized in that: The inner surface of the inner pot and the raised outer surface are both coated with polytetrafluoroethylene (PTFE) for non-stick coating using a spraying process.

9. The non-stick rice cooker according to claim 1, characterized in that: It also includes a cover that fits over the opening of the mounting cavity, wherein an annular step is provided on the side wall of the opening of the mounting cavity, and the lower edge of the cover rests on the step.

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