Air-cooled zero-coating non-stick rice cooker
By setting the flared part and the hydrophobic concave and convex part on the inner liner surface at the hinge, the problem of cooling air discharge of the existing air-cooled rice cooker affecting the user experience is solved, and good non-stick effect and cooling effect are achieved.
Patent Information
- Application Number
- CN202420497321.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-03-14
AI Technical Summary
When the cooling air is discharged from the existing air-cooled 0-coated rice cooker, the gap between the lid and the body of the cooker is relatively large, which affects the user experience and is not good in sticky.
A flared part is provided at the hinge to form a larger air outlet gap. The cooling air generated by the cooling fan can be discharged smoothly. The inner liner is equipped with hydrophobic concave and convex parts to improve non-stickness and enhance the cooling effect through the air passage.
Improves the user experience, ensures smooth cooling wind discharge and does not affect use, and improves the non-stick effect of rice, and significantly improves the non-stick surface performance and cooling effect of the inner liner.
Smart Images
Figure CN222149656U_ABST
Abstract
Description
[Technical field]
[0001] The utility model relates to a kitchen cooking appliance, in particular to an air-cooled 0-coating non-stick rice cooker. [Background technology]
[0002] The prior art discloses a rice cooker, which forms condensed water by setting an air cooling device to work at a specific stage, thereby isolating the inner pot and rice, so that the rice does not stick, and thus a 0-coating inner pot can be used without sticking to the pot.
[0003] However, in the prior art air-cooled 0-coat rice cooker, when the air-cooling device is provided, when the cooling air is discharged outside the machine, it is easier to be discharged from the front of the machine due to the large gap between the cover and the front of the cooker body. The user is generally located in the front of the machine, which affects the user experience, so it needs to be improved. [Contents of the utility model]
[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an air-cooled 0-coating non-stick rice cooker, wherein an expanded opening is provided at a hinge to facilitate orderly discharge of cooling air, thereby improving user experience.
[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0006] A wind-cooled 0-coating non-stick rice cooker comprises an inner pot, a pot body and a pot cover, wherein the inner pot has a metal layer for contacting rice, the pot cover is hinged on the pot body, a hydrophobic concave-convex portion is provided on the surface of the metal layer, an air outlet gap is provided between the pot body and the pot cover, the air outlet gap has a flared portion at the hinge, a cooling fan for cooling the inner pot is provided in the pot body, and the flared portion is used to discharge cooling air generated by the cooling fan.
[0007] In one embodiment of the utility model, the inner pot is provided with a flange, and the pot body is provided with a plurality of convex parts supporting the flange, and an air passage is formed between adjacent convex parts.
[0008] In an embodiment of the utility model, the cooling air generated by the cooling fan passes through the air passage and is discharged from the flared portion of the air outlet gap after cooling the inner tank.
[0009] In an embodiment of the present invention, the roughness of the surface of the metal layer is 0.4-2.5 um.
[0010] In an embodiment of the present invention, the height difference of the hydrophobic concave-convex portion is smaller than the height of the flared portion.
[0011] In an embodiment of the present invention, the height difference of the hydrophobic concave and convex parts is in micrometer order.
[0012] In an embodiment of the present invention, the depth of the grooves or the height of the protrusions in the hydrophobic concave-convex portion are randomly distributed.
[0013] In an embodiment of the present invention, the hydrophobic concave and convex portions are randomly distributed on the surface of the metal layer.
[0014] In one embodiment of the utility model, the pot cover is provided with upwardly inclined inclined surfaces or air guide surfaces on both sides of the hinge, and the inclined surfaces or air guide surfaces cooperate with the pot body to form a flared portion of the air outlet gap.
[0015] In one embodiment of the utility model, the two sides of the pot body located at the hinge are provided with downwardly inclined inclined surfaces or air guide surfaces, and the inclined surfaces or air guide surfaces cooperate with the pot cover to form a flared portion of the air outlet gap.
[0016] The utility model has the following beneficial effects:
[0017] 1. The rice is contacted through the metal layer of the inner pot, so the inner surface of the inner pot does not need to be provided with a chemical coating like the existing coated inner pot, and the surface of the metal layer is provided with hydrophobic concave-convex parts, which are hydrophobic and can improve the non-stickiness of the inner pot. The pot body of the present application is provided with a cooling device for cooling the inner pot. The operation of the cooling device can form condensed water between the rice and the inner pot to achieve the effect of non-stick rice. An air outlet gap is provided between the pot body and the pot cover, and the air outlet gap has a flared part at the hinge, and the cooling air generated by the cooling device can finally be discharged from the flared part. The flared part is located at the hinge and will not affect the user's use.
[0018] 2. The pot body is provided with convex parts to support the flange of the inner pot, and an air passage is formed between adjacent convex parts. By providing the air passage, the cooling air can pass through the air passage and finally be discharged from the flared part. The cooling air can cool the inner pot during the flow process, forming a good cooling effect.
[0019] 3. The height difference of the hydrophobic concave-convex part is smaller than the height of the flared part. The height difference of the hydrophobic concave-convex part affects the non-stick effect of rice, and the height of the flared part determines the speed of cooling air discharge, and also affects the formation of the moist film and the non-stick effect of rice. By linking the two, a good non-stick effect can be achieved. In other words, the height difference of the hydrophobic concave-convex part is small, while the height of the flared part is large, so that the non-stick performance of the inner pot surface is better, and the cooling air can be discharged smoothly and timely.
[0020] These features and advantages of the present invention will be disclosed in detail in the following specific implementation manners and drawings.
Brief Description of the Drawings
[0021] The utility model is further described below in conjunction with the accompanying drawings:
[0022] Figure 1 It is a cross-sectional view of a rice cooker according to Embodiment 1 of the present utility model;
[0023] Figure 2 This is a schematic diagram of the rice cooker with the cover opened according to the first embodiment of the utility model;
[0024] Figure 3 It is a rear view of the rice cooker according to the first embodiment of the present invention.
[0025] Figure Number:
[0026] Inner pot 1, pot body 2, pot cover 3, flared portion 4, cooling fan 5, convex portion 6. [Specific implementation method]
[0027] The utility model proposes an air-cooled 0-coating non-stick rice cooker, comprising an inner pot, a pot body and a pot cover, wherein the inner pot has a metal layer for contacting rice, the pot cover is hinged on the pot body, the surface of the metal layer is provided with a hydrophobic concave-convex portion, an air outlet gap is provided between the pot body and the pot cover, the air outlet gap has a flared portion at the hinge, a cooling fan for cooling the inner pot is provided in the pot body, and the flared portion is used to discharge the cooling air generated by the cooling fan. The application facilitates the orderly discharge of cooling air by providing the flared portion at the hinge, thereby improving the user experience.
[0028] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.
[0029] Embodiment 1
[0030] This embodiment provides an air-cooled 0-coating non-stick rice cooker, referring to Figure 1-Figure 3 The invention comprises an inner pot 1, a pot body 2 and a pot cover 3. The inner pot 1 is placed in the pot body 2 for holding ingredients to be cooked, such as rice. When the pot cover 3 is closed on the pot body 2, the inner pot 1 can be covered. When the pot cover 3 is opened, the ingredients in the inner pot can be taken out. The pot body 2 is also provided with a heating device for heating the inner pot 1 so that the ingredients in the inner pot 1 are heated and cooked.
[0031] The pot cover 3 of this embodiment is hinged on the pot body 2, that is, the pot cover 3 is rotatably connected to the pot body 2. Specifically, a rotating shaft is provided at the rear of the pot body 2 to pass through the pot cover 3 and the pot body 2, so that the pot cover 3 is hinged on the pot body 2, and a torsion spring is provided on the rotating shaft. When the buckle at the front of the pot cover 3 is disengaged, the torsion spring will drive the pot cover 3 to rotate so that the pot cover 3 is opened.
[0032] In this embodiment, there is an air outlet gap between the pot body 2 and the pot cover 3. Figure 1and Figure 3 , the air outlet gap has a flared portion 4 at the hinge, a cooling fan 5 for cooling the inner pot is provided in the pot body 2, and the flared portion 4 is used to discharge the cooling air generated by the cooling fan 5. The flared portion 4 can be understood as the air outlet gap being partially enlarged at the hinge, forming a certain flaring, so that it is more convenient for the cooling air to be discharged from here. Because the cooling air needs to be discharged from the air outlet gap when it is located in the pot body, and the gap of the flared portion is significantly larger than the air outlet gaps in other areas, so that more cooling air will be discharged from the flared portion. Specifically, the gap at the flared portion is more than five times the air outlet gap in other areas, for example, the air outlet gap is about 0.5 mm, and the height of the flared portion is more than 2.5 mm.
[0033] In this embodiment, because the pot cover 3 is covered on the pot body 2, the pot cover 3 is prevented from being separated from the pot body by the buckle, so a cover gap is formed between the pot cover 3 and the pot body 2, and because of the effect of the torsion spring, the pot cover 3 has a tendency to open, causing the front cover gap (that is, the air outlet gap of the present application) to be larger, but the present application provides a flared portion 4 at the hinge, and the gap of the flared portion 4 is larger than the cover gap, so that the cooling air formed in the pot body 2 will be discharged from the flared portion 4. During specific operation, when the cooling fan 5 generates cooling air to cool the inner pot 1, part of the cooling air will flow upward and be discharged from the bottom of the inner pot flange, and then discharged from the air outlet gap between the pot body 2 and the pot cover 3, and because the flared portion has a larger flare, the cooling air will be discharged from here to the outside of the machine, and because the flared portion is located at the hinge, that is, on the side away from the user, it will not affect the user's use of the rice cooker.
[0034] In this embodiment, refer to Figure 1 and Figure 2 The inner pot is provided with a flange, and the pot body 2 is provided with a plurality of convex parts 6 supporting the flange, and an air passage 7 is formed between adjacent convex parts. After cooling the inner pot, the cooling air generated by the cooling fan 5 will pass through the air passage 7 and flow to the joint of the pot cover 3 and the pot body 2, that is, flow to the air outlet gap, and then flow out from the air outlet gap, while the flared part 4 is located at the hinge of the rear part of the pot body, and the cooling air will flow out more from the flared part 4. Through the setting of the air passage 7, the cooling air will flow to the top of the inner pot as much as possible, and the heating device is generally located below the inner pot, so energy loss can be avoided to a certain extent.
[0035] The working principle of the cooling fan 5 is that in the later stage of rice cooking, specifically in the rice stewing stage or the heat preservation stage, the inner pot is cooled by the cooling fan 5. Due to the sudden drop in the temperature of the inner pot, condensed water is formed between the inner pot and the rice, so that the rice does not stick. The continuous operation of the cooling fan 5 will continuously inject cooling air, which will flow along the outer wall of the inner pot and pass through the air passage 7, and finally be discharged through the air outlet gap, especially from the flared portion 4.
[0036] In this embodiment, the inner pot 1 has a metal layer for contacting rice, and the surface of the metal layer is provided with hydrophobic concave-convex parts. Since the metal layer of the inner pot 1 is in direct contact with the rice, the inner pot 1 does not need to be provided with a chemical coating like the existing coated inner pot. Preferably, the surface of the metal layer of this embodiment is provided with randomly distributed hydrophobic concave-convex parts. Through the setting of the concave-convex parts, the inner surface of the inner pot has a certain hydrophobicity, achieving a physical non-stick effect. More specifically, the concave-convex parts are randomly distributed, unlike many of the prior art that are regularly distributed, and the requirements for the process will be significantly reduced, and the production and manufacturing will be distributed. The concave-convex parts can be a number of protrusions distributed on the surface of the inner pot, and the corresponding other areas can be understood as concave parts, or a number of grooves distributed on the surface of the inner pot, and the corresponding other areas can be understood as convex parts. It can be understood that the inner pot 1 can be composed of multiple layers of metal sheets, and the metal layer in contact with the rice belongs to the innermost layer, which can be made of stainless steel, and does not need to be provided with chemical coatings such as Teflon.
[0037] In the present embodiment, random distribution has at least the following understandings, one is that the position of the protrusion or groove on the surface of the metal layer is randomly distributed. It can be that the spacing between adjacent protrusions (or grooves) is random, some are close, and some are far apart. It can also be that the size of the protrusion or groove on the surface of the metal layer is randomly distributed, some are larger, and some are smaller. It can also be that its shape is also random, and it can be a regular circle, square, oval, or an irregular shape. The second is that the depth of the groove or the height of the protrusion in the hydrophobic concave-convex part is randomly distributed, and some grooves are deeper, and some grooves are shallower, and some protrusions are higher, and some protrusions are shorter. Of course, it can also be that there is both random distribution of position and random distribution of depth or height, both of which are available. Due to the randomness of random distribution, the process difficulty is reduced.
[0038] In this embodiment, the roughness of the metal layer surface is 0.4-2.5um. Within this range, better non-stick performance and hygienic performance can be obtained. If the roughness is less than 0.4, there will be too little air in the groove, which will easily reduce the final rice supporting effect. If the roughness is greater than 2.5, food residues or rice starch particles will easily remain in the groove, which is not conducive to the cleaning of the inner surface of the stainless steel metal layer.
[0039] In this embodiment, the height difference of the hydrophobic concave-convex part is smaller than the height of the flared part. The height difference of the hydrophobic concave-convex part has an impact on the non-stick effect of rice, and the height of the flared part determines the speed of cooling air discharge, and also has an impact on the formation of the moist film and the non-stick effect of rice. By linking the two, a good non-stick effect can be achieved. In other words, the height difference of the hydrophobic concave-convex part is small, while the height of the flared part is large, so that the non-stick performance of the inner pot surface is better, and the cooling air can be discharged smoothly and timely.
[0040] In this embodiment, the height difference of the hydrophobic concavoconvex part is in the micron level. That is, the difference between the highest point and the lowest point of the concavoconvex part is in the micron level. The micron level should be specifically understood as 1-999 microns. The micron level height difference can meet the non-stick performance requirements of rice and is also easy to manufacture and shape. However, the concavoconvex parts in the prior art are mostly in the millimeter level, which will cause rice starch to easily remain therein, making it inconvenient to clean and affecting the user experience.
[0041] In this embodiment, refer to Figure 3 , the pot cover is provided with upwardly inclined inclined surfaces or air guide surfaces on both sides of the hinge, and the inclined surfaces or air guide surfaces cooperate with the pot body to form a flared portion 4 of the air outlet gap. That is, the pot cover has an inclined surface or air guide surface at the hinge, and the pot body is basically horizontal. When the pot cover is closed with the pot body, there is a flared portion 4 at the inclined surface or air guide surface. The setting of the flared portion 4 not only facilitates the orderly discharge of cooling air, but also facilitates the rotation of the pot cover, ensuring that it will not interfere with the pot body when rotating.
[0042] It should be noted that the rice cooker of the present embodiment can also be understood as a cooking utensil capable of cooking rice, such as an electric rice cooker or an electric rice cooker.
[0043] Embodiment 2
[0044] In this embodiment, the two sides of the pot body at the hinge are provided with downwardly inclined inclined surfaces or air guide surfaces, and the inclined surfaces or air guide surfaces cooperate with the pot cover to form a flared portion of the air outlet gap. That is, the pot body has an inclined surface or air guide surface at the hinge, and the pot cover is basically horizontal. When the pot cover is closed with the pot body, there is a flared portion at the inclined surface or air guide surface. The setting of the flared portion not only facilitates the orderly discharge of cooling air, but also facilitates the rotation of the pot cover, ensuring that it will not interfere with the pot body when it rotates.
[0045] Embodiment 3
[0046] In this embodiment, the pot cover is provided with upwardly inclined inclined surfaces or air guide surfaces on both sides of the hinge, and the pot body is provided with downwardly inclined inclined surfaces or air guide surfaces on both sides of the hinge, and the inclined surfaces or air guide surfaces on the pot cover cooperate with the inclined surfaces or air guide surfaces on the pot body to form a flared portion of the air outlet gap. That is, the pot cover and the pot body are both inclined to a certain extent, forming a more obvious flared portion, which is convenient for the orderly discharge of cooling air and also convenient for the rotation of the pot cover, ensuring that it will not interfere with the pot body when rotating.
[0047] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.
Claims
1. An air-cooled 0-coating non-stick rice cooker, comprising an inner pot, a pot body and a pot cover, wherein the inner pot has a metal layer for contacting rice, and the pot cover is hinged on the pot body, characterized in that: The surface of the metal layer is provided with hydrophobic concave-convex parts, and an air outlet gap is provided between the pot body and the pot cover. The air outlet gap has a flared part at the hinge. A cooling fan for cooling the inner pot is provided in the pot body, and the flared part is used to discharge the cooling air generated by the cooling fan.
2. The air-cooled 0-coating non-stick rice cooker according to claim 1, characterized in that: The inner pot is provided with a flange, and the pot body is provided with a plurality of convex parts supporting the flange, and an air passage is formed between adjacent convex parts.
3. The air-cooled 0-coating non-stick rice cooker as claimed in claim 2, characterized in that: The cooling air generated by the cooling fan is discharged from the flared portion of the air outlet gap through the air passage after cooling the inner tank.
4. The air-cooled 0-coating non-stick rice cooker according to claim 1, characterized in that: The surface roughness of the metal layer is 0.4-2.5um.
5. The air-cooled 0-coating non-stick rice cooker according to claim 1, characterized in that: The height difference of the hydrophobic concave-convex portion is smaller than the height of the flared portion.
6. The air-cooled 0-coating non-stick rice cooker according to claim 1, characterized in that: The height difference of the hydrophobic concave-convex parts is in micron order.
7. The air-cooled 0-coating non-stick rice cooker according to claim 1, characterized in that: The depths of the grooves or the heights of the protrusions in the hydrophobic concavo-convex portion are randomly distributed.
8. The air-cooled 0-coating non-stick rice cooker according to claim 1, characterized in that: The hydrophobic concave-convex portions are randomly distributed on the surface of the metal layer.
9. The air-cooled 0-coating non-stick rice cooker according to claim 1, characterized in that: The pot cover is provided with upwardly inclined inclined surfaces or air guiding surfaces on both sides of the hinge, and the inclined surfaces or air guiding surfaces cooperate with the pot body to form a flared portion of the air outlet gap.
10. The air-cooled 0-coating non-stick rice cooker according to claim 1, characterized in that: The pot body is provided with downwardly inclined inclined surfaces or air guiding surfaces on both sides of the hinge, and the inclined surfaces or air guiding surfaces cooperate with the pot cover to form a flared portion of the air outlet gap.