Cover body and cooking utensil

Abstract

The invention provides a cover body and a cooking utensil, the cover body comprises a cover body, at least one part of the cover body is obliquely arranged; the hydrophilic layer is arranged on the surface of one side of the cover body, and the hydrophilic layer is provided with a concave-convex structure. When steam in the cooking cavity makes contact with the cover body with the low temperature, condensate water can be formed, due to the fact that the cover body is provided with the hydrophilic layer, and the hydrophilic layer is of the concave-convex structure, the condensate water wets the surface of the hydrophilic layer and rapidly diffuses to form a liquid film, water drops cannot be formed and directly drop on food materials in the cooking cavity, and the cooking effect is improved. Therefore, the cooking effect and appearance of the food materials are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and more particularly, to a lid and a cooking appliance. Background Art

[0002] Currently, the steam cooker products in the related art heat food by generating steam, and a lid is provided at the top to prevent the rapid loss of steam to increase the internal temperature.

[0003] However, when high-temperature steam contacts a relatively low-temperature lid or other structures, condensed water will be generated. The condensed water contacting the food ingredients will affect the taste and appearance of the food ingredients. Summary of the Invention

[0004] Embodiments of the present invention aim to at least solve one of the technical problems existing in the prior art.

[0005] To this end, a first aspect of an embodiment of the present invention provides a lid.

[0006] A second aspect of an embodiment of the present invention provides a cooking appliance.

[0007] In view of this, according to the first aspect of the embodiment of the present invention, a lid is provided, the lid including: a lid body, at least a part of the lid body being inclined; a hydrophilic layer provided on one surface of the lid body, the hydrophilic layer having a concavo-convex structure.

[0008] The lid provided by the embodiment of the present invention includes a lid body and a hydrophilic layer. Specifically, the hydrophilic layer is provided on one surface of the lid body. It can be understood that the lid is configured to be suitable for covering the appliance body, wherein the appliance body is provided with a cooking cavity. That is to say, when the lid covers the appliance body, the lid can close the cooking cavity to prevent the steam in the cooking cavity from dissipating during the working state of the cooking appliance, ensuring the heating effect of the cooking appliance.

[0009] Optionally, the hydrophilic layer is provided on the inner surface of the lid body, that is to say, the hydrophilic layer is provided on one surface of the lid body facing the cooking cavity. Alternatively, hydrophilic layers are provided on both the inner surface and the outer surface of the lid body.

[0010] The hydrophilic layer has a concavo-convex structure, that is to say, the hydrophilic layer is a rough layer with a concavo-convex structure, so that the hydrophilic layer shows a hydrophilic surface state. When the steam in the cooking cavity contacts the relatively low-temperature lid, condensed water will be formed. Since the lid body is provided with a hydrophilic layer and the hydrophilic layer has a concavo-convex structure, the condensed water wets and rapidly diffuses on the surface of the hydrophilic layer to form a liquid film, rather than forming water droplets directly dropping onto the food ingredients in the cooking cavity, thereby ensuring the cooking effect and appearance of the food ingredients.

[0011] Moreover, when the cover body opens the cooking cavity and is placed on the tabletop, no water droplets will form and drip onto the tabletop, enhancing the user experience.

[0012] At least a part of the cover body is inclined, so that the condensed water condensed on the hydrophilic layer diffuses on the surface of the hydrophilic layer to form a liquid film and can flow down along the hydrophilic layer. That is to say, when a large amount of condensed water condenses on the inner side of the cover body, due to the inclination of the cover body, the condensed water can flow down along the surface of the hydrophilic layer and be discharged, preventing the condensed water from dripping onto the food when the amount of condensed water on the inner side of the cover body is large, and further ensuring the taste and appearance of the food after cooking.

[0013] Moreover, it can also prevent the high-temperature condensed water on the inner side of the cover body from scalding the user when opening the cover, improving the use safety of the cooking appliance.

[0014] Specifically, when the amount of condensed water is small, the condensed water diffuses on the hydrophilic layer to form a liquid film and no water droplets will form and drip. When more condensed water accumulates, after the condensed water diffuses on the hydrophilic layer to form a liquid film, it flows down along the surface of the hydrophilic layer and is discharged.

[0015] In addition, the cover body provided by the above technical solution of the present invention further has the following additional technical features:

[0016] In some technical solutions, optionally, the cover body includes a first surface and a second surface facing away from each other, and hydrophilic layers are respectively provided on the first surface and the second surface.

[0017] In this technical solution, it is defined that the cover body includes a first surface and a second surface facing away from each other, that is to say, the cover body includes an inner surface and an outer surface, and hydrophilic layers are provided on both the inner surface and the outer surface.

[0018] Since the hydrophilic layer has a concavo-convex structure, that is, the hydrophilic layer is a rough layer with a concavo-convex structure, the hydrophilic layer shows a hydrophilic surface state.

[0019] When the steam in the cooking cavity contacts the cover body with a lower temperature, condensed water will form. Since the cover body is provided with a hydrophilic layer and the hydrophilic layer has a concavo-convex structure, the condensed water wets and quickly diffuses on the surface of the hydrophilic layer to form a liquid film, and will not form water droplets and directly drip onto the food in the cooking cavity, thereby ensuring the cooking effect and appearance of the food. Moreover, when the cover body opens the cooking cavity and is placed on the tabletop, no water droplets will form and drip onto the tabletop, enhancing the user experience.

[0020] In addition, hydrophilic layers are provided on both the inner surface and the outer surface of the cover body, which can facilitate the formation of the hydrophilic layer on the surface of the cover body, reduce the manufacturing difficulty of the cover body, improve the production efficiency of the cover body, and further reduce the production cost of the cooking appliance.

[0021] For example, in the case where the hydrophilic layer is an oxide treatment layer formed on the inner and outer surfaces of the lid body, during the manufacturing process of the lid body, the lid body can be directly placed in an electrolyte solution, and under the condition of setting electrical parameters, an oxide treatment layer is formed on each surface of the lid body.

[0022] In some technical solutions, optionally, the concavo-convex structure includes a plurality of pits; and / or the concavo-convex structure includes a plurality of protrusions; and / or the concavo-convex structure includes a plurality of hydrophilic pores.

[0023] In this technical solution, specifically, the concavo-convex structure includes a plurality of pits. Or, the concavo-convex structure includes a plurality of protrusions. Or, the concavo-convex structure includes a plurality of hydrophilic pores. Or, the concavo-convex structure includes a plurality of pits and a plurality of protrusions. Or, the concavo-convex structure includes a plurality of pits and a plurality of hydrophilic pores. Or, the concavo-convex structure includes a plurality of protrusions and a plurality of hydrophilic pores. Or, the concavo-convex structure includes a plurality of protrusions, a plurality of pits and a plurality of hydrophilic pores. It can be specifically set according to actual needs.

[0024] By making the surface of the hydrophilic layer have a concavo-convex structure of at least one of pits, protrusions and hydrophilic pores, the surface of the hydrophilic layer is made into a rough structure, and further the hydrophilic layer is formed into a hydrophilic surface state.

[0025] When the steam in the cooking cavity contacts the relatively low-temperature lid body, condensed water will be formed. Since the lid body is provided with a hydrophilic layer and the hydrophilic layer has a concavo-convex structure, the condensed water wets and quickly spreads on the surface of the hydrophilic layer to form a liquid film, and will not form water droplets directly dripping onto the ingredients in the cooking cavity, thereby ensuring the cooking effect and appearance of the ingredients.

[0026] In some technical solutions, optionally, in the case where the concavo-convex structure includes a plurality of hydrophilic pores, the diameter D of at least one hydrophilic pore satisfies 1μm ≤ D ≤ 80μm.

[0027] In this technical solution, in the case where the concavo-convex structure includes a plurality of hydrophilic pores, the aperture of the hydrophilic pores is defined. Specifically, the aperture of at least one hydrophilic pore is between 1μm and 80μm. That is to say, a micron structure is formed on the surface of the hydrophilic layer, so that the hydrophilic layer is formed into a hydrophilic surface state, that is, the surface of the hydrophilic layer has the characteristics of infiltration and diversion. At the same time, since the aperture of the hydrophilic pores is small, it can also avoid the pollution of pores by impurities and the like.

[0028] Specifically, when the steam in the cooking cavity contacts the relatively low-temperature lid body, condensed water will be formed. Since the lid body is provided with a hydrophilic layer and the hydrophilic layer has a plurality of hydrophilic pores, the condensed water wets and quickly spreads on the surface of the hydrophilic layer to form a liquid film, and will not form water droplets directly dripping onto the ingredients in the cooking cavity, thereby ensuring the cooking effect and appearance of the ingredients.

[0029] Optionally, the diameter D of at least one hydrophilic pore satisfies 5μm ≤ D ≤ 25μm. That is, the pore diameter of the hydrophilic pore is further controlled between 5μm and 25μm. Thereby, while the hydrophilic layer has the characteristics of infiltration and diversion, it can further avoid the contamination of pores by impurities and the like.

[0030] In some technical solutions, optionally, the thickness d of the hydrophilic layer satisfies 10μm ≤ d ≤ 100μm; and / or the wetting angle α of the hydrophilic layer satisfies 0° ≤ α ≤ 40°.

[0031] In this technical solution, the value range of the thickness of the hydrophilic layer is limited. Specifically, the thickness of the hydrophilic layer is between 10μm and 100μm. Thereby, while the hydrophilic layer exhibits a hydrophilic surface state, it can reduce the processing difficulty of the hydrophilic layer, further avoid excessive processing difficulty of the hydrophilic layer, improve the production efficiency of the lid, and reduce the production cost of the cooking appliance.

[0032] The wetting angle of the hydrophilic layer is between 0° and 40°. Thereby, the surface of the hydrophilic layer has excellent hydrophilic effect. When the steam in the cooking cavity contacts the relatively low-temperature lid, condensate will be formed. Since the hydrophilic layer has a concave-convex structure and the wetting angle is between 0° and 40°, the condensate wets and quickly spreads on the surface of the hydrophilic layer to form a liquid film, rather than forming water droplets that directly drip onto the ingredients in the cooking cavity, thereby ensuring the cooking effect and appearance of the ingredients.

[0033] Optionally, when the concave-convex structure includes multiple hydrophilic pores, in the cold state (room temperature state of 25°C), the wetting angle is less than or equal to 30°, that is, the wetting angle of the hydrophilic layer is between 0° and 30°, to further improve the hydrophilic effect on the surface of the hydrophilic layer.

[0034] In some technical solutions, optionally, the side of the lid body facing the hydrophilic layer is an aluminum-based composite surface; or the lid body is an aluminum-based composite part.

[0035] In this technical solution, it is limited that the side of the lid body facing the hydrophilic layer is an aluminum-based composite surface. Or, the lid body is an aluminum-based composite part. Thereby, the surface of the lid body can be subjected to oxidation treatment, such as hard anodizing or micro-arc oxidation, and a hydrophilic layer with multiple pores (hydrophilic pores), that is, a micro-nano structure, can be formed on the surface of the lid body. Thereby, the hydrophilic layer exhibits excellent hydrophilic effect. When steam contacts the lid to form condensate, the condensate wets and quickly spreads on the surface of the hydrophilic layer to form a liquid film, rather than forming water droplets that drip.

[0036] Optionally, the lid body is an aluminum alloy part, which can improve the structural strength of the lid and is beneficial to extending the service life of the lid.

[0037] Optionally, the side of the lid body facing the hydrophilic layer is an aluminum alloy surface.

[0038] Optionally, the process parameters for the oxidation treatment on the surface of the lid body are as follows:

[0039] Electrolyte composition: 15 g / L - 21 g / L Na2O·nSiO2, 1 g / L - 5 g / L NaOH, 18 g / L - 22 g / L C3H8O3, 3 g / L - 8 g / L (NaPO3)6.

[0040] Set the electrical parameters: current 15 A, termination voltage 500 V, electrolysis time 600 s, frequency 800 Hz.

[0041] That is to say, under the condition of setting the electrical parameters, place the lid body in the above-mentioned electrolyte, so that an oxide layer with a micro-nano structure can be formed on the surface of the lid body. The micro-nano structure is relatively dense near the surface of the lid body, and the surface facing away from the lid body is a porous structure with certain pores.

[0042] It can be understood that after the oxide layer is formed, the irregular parts on the surface of the oxide layer can be polished off. That is to say, after the oxide layer is formed, the pore diameter of the hydrophilic pores on the oxide layer can be controlled by polishing to ensure the hydrophilic effect of the oxide layer.

[0043] In some technical solutions, optionally, the lid body includes a first plate body and a second plate body. Among them, the second plate body is connected to the first plate body, the second plate body is circumferentially arranged around the center of the lid body, and at least a part of the second plate body is inclined.

[0044] In this technical solution, it is defined that the lid body includes a first plate body and a second plate body. Specifically, the second plate body is connected to the first plate body, and the second plate body is circumferentially arranged around the center of the lid body, that is, the second plate body is arranged farther from the center of the lid body than the first plate body. That is to say, the second plate body is located on the outer peripheral side of the first plate body.

[0045] At least a part of the second plate body is inclined, so that after the condensed water on the hydrophilic layer diffuses to form a liquid film on the surface of the hydrophilic layer, it can flow down along the hydrophilic layer. That is to say, when a large amount of condensed water accumulates inside the lid, due to the inclination of the second plate body, the condensed water can flow down along the surface of the hydrophilic layer, which is beneficial to the rapid discharge of the condensed water. Prevent the condensed water inside the lid from dripping onto the food when the amount is large, and further ensure the taste and appearance of the food after cooking.

[0046] Moreover, inclining a part of the lid body near the outer edge can, while being beneficial to guiding the condensed water to flow down and discharge quickly along the hydrophilic layer, increase the distance between the inner side of the lid and the steaming rack when placing the food on the steaming rack, that is, increase the distance between the hydrophilic layer and the food, and avoid overflowing onto the food in the case of a large amount of condensed water, further ensuring the cooking effect of the food.

[0047] Optionally, the first plate body and the second plate body are of an integral structure.

[0048] In some technical solutions, optionally, the hydrophilic layer includes one of an oxide layer, a coating layer, a chemical etching layer, a laser etching layer, a chemical deposition layer, or a machining layer.

[0049] In this technical solution, it is defined that the hydrophilic layer includes one of an oxide layer, a coating layer, a chemical etching layer, a laser etching layer, a chemical deposition layer, or a machining layer.

[0050] Specifically, the hydrophilic layer includes an oxide layer, that is, on at least one surface of the cover body, through an oxidation treatment method such as anodic oxidation, hard anodizing, or micro-arc oxidation, an oxide layer with a concavo-convex structure is formed on at least one side surface of the cover body, so that the hydrophilic layer exhibits hydrophilic surface characteristics.

[0051] Alternatively, the hydrophilic layer includes a coating layer, that is, on at least one side surface of the cover body, through a method of spraying a coating layer, a coating layer with a concavo-convex structure is formed on at least one side surface of the cover body, so that the hydrophilic layer exhibits hydrophilic surface characteristics.

[0052] Alternatively, the hydrophilic layer includes a chemical etching layer, that is, on at least one side surface of the cover body, through a method of chemical etching or electrochemical etching, a chemical etching layer with a concavo-convex structure is formed on at least one side surface of the cover body, so that the hydrophilic layer exhibits hydrophilic surface characteristics.

[0053] Alternatively, the hydrophilic layer includes a laser etching layer, that is, on at least one side surface of the cover body, through a method of laser etching, a laser etching layer with a concavo-convex structure is formed on at least one side surface of the cover body, so that the hydrophilic layer exhibits hydrophilic surface characteristics.

[0054] Alternatively, the hydrophilic layer includes a chemical deposition layer, that is, on at least one side surface of the cover body, through a method of chemical deposition or electrochemical deposition, a chemical deposition layer with a concavo-convex structure is formed on at least one side surface of the cover body, so that the hydrophilic layer exhibits hydrophilic surface characteristics.

[0055] Alternatively, the hydrophilic layer includes a machining layer, that is, on at least one side surface of the cover body, through a method of machining, a machining layer with a concavo-convex structure is formed on at least one side surface of the cover body, so that the hydrophilic layer exhibits hydrophilic surface characteristics.

[0056] According to the second aspect of the present invention, a cooking appliance is provided, including the cover body provided in any of the above technical solutions, and thus has all the beneficial technical effects of this cover body, which will not be elaborated here.

[0057] Further, the cooking appliance further includes an appliance body provided with a cooking cavity. The cover body is configured to be suitable for covering the appliance body, and a hydrophilic layer is provided on a surface of the cover body facing the cooking cavity.

[0058] The cooking appliance provided by the embodiment of the present invention includes an appliance body and a cover body. Specifically, the appliance body is provided with a cooking cavity, and the cover body is suitable for covering the appliance body. That is to say, when the cover body covers the appliance body, the cover body can close the cooking cavity to prevent the steam in the cooking cavity from escaping during the working state of the cooking appliance and ensure the heating effect of the cooking appliance.

[0059] The hydrophilic layer is provided on a surface of the cover body facing the cooking cavity. That is to say, the inner surface of the cover body is provided with a hydrophilic layer, and the hydrophilic layer is a rough layer with a concavo-convex structure, so that the hydrophilic layer exhibits a hydrophilic surface state.

[0060] Specifically, when the steam in the cooking cavity contacts the relatively low-temperature cover body, condensed water will be formed. Since the cover body is provided with a hydrophilic layer and the hydrophilic layer has a concavo-convex structure, the condensed water wets and quickly spreads on the surface of the hydrophilic layer to form a liquid film, rather than forming water droplets that directly drip onto the ingredients in the cooking cavity, thereby ensuring the cooking effect and appearance of the ingredients.

[0061] Moreover, at least a part of the cover body is inclined, so that after the condensed water condensed on the hydrophilic layer spreads to form a liquid film on the surface of the hydrophilic layer, it can flow down along the hydrophilic layer. That is to say, when a large amount of condensed water accumulates on the inner side of the cover body, due to the inclination of the cover body, the condensed water can flow down along the surface of the hydrophilic layer and be discharged, preventing the condensed water on the inner side of the cover body from dripping onto the ingredients when the amount is large, further ensuring the taste and appearance of the ingredients after cooking, and also preventing the high-temperature condensed water on the inner side of the cover body from scalding the user when opening the cover, and improving the use safety of the cooking appliance.

[0062] Optionally, the cooking appliance includes a steamer, a rice cooker, a soymilk machine, a wall breaker, etc.

[0063] In addition, the cooking appliance provided according to the above technical solution of the present invention further has the following additional technical features:

[0064] In some technical solutions, optionally, a drainage groove is further provided on a side of the appliance body facing the cover body. When the cover body covers the appliance body, the drainage groove is located on a side of the hydrophilic layer close to the cooking cavity, and the liquid on the hydrophilic layer can flow into the drainage groove along the hydrophilic layer.

[0065] In this technical solution, it is defined that a drainage groove is further provided on a side of the appliance body facing the cover body. Specifically, when the cover body covers the appliance body to close the cooking cavity, the drainage groove is located on a side of the hydrophilic layer close to the cooking cavity, that is to say, the drainage groove is located inside the hydrophilic layer.

[0066] The liquid on the hydrophilic layer can flow into the drain trough along the hydrophilic layer. Specifically, during the operation of the cooking appliance, when the steam in the cooking cavity contacts the relatively low-temperature inner surface of the lid body, condensed water is formed on the inner surface of the lid body, that is, condensed water is formed on the hydrophilic layer.

[0067] Due to the hydrophilic property of the hydrophilic layer, the condensed water wets and spreads on the hydrophilic layer without forming water droplets that drip. And because a part of the lid body is inclined, the condensed water on the hydrophilic layer can flow down along the surface of the hydrophilic layer and enter the drain trough. That is to say, by setting the drain trough to collect the condensed water on the hydrophilic layer, it is possible to prevent the condensed water from dripping onto the food ingredients, and at the same time, the condensed water can be discharged through the drain trough, preventing the residual condensed water from slipping onto the tabletop when the user opens the lid, thus enhancing the user experience.

[0068] Optionally, the width of the drain trough is greater than or equal to 2 mm, ensuring that the drain trough can collect the condensed water on the hydrophilic layer while preventing the condensed water in the drain trough from overflowing onto the food ingredients, and further ensuring the taste and appearance of the food ingredients after cooking.

[0069] In some technical solutions, optionally, the cooking appliance further includes at least one drain port, and at least one drain port is provided on the appliance body and is communicated with the drain trough; wherein, the drain trough includes a water guiding part, and the liquid in the drain trough can flow to at least one drain port under the guidance of the water guiding part.

[0070] In this technical solution, it is defined that the cooking appliance further includes at least one drain port. Specifically, at least one drain port is communicated with the drain trough. It can be understood that the condensed water flowing into the drain trough from the hydrophilic layer is discharged from the drain trough through at least one drain port, thus preventing the residual condensed water from slipping onto the tabletop when the user opens the lid and enhancing the user experience.

[0071] Moreover, by setting at least one drain port to discharge the condensed water in the drain trough, it is also possible to prevent the condensed water in the drain trough from overflowing onto the food ingredients due to water storage, further improving the cooking effect of the food ingredients. And it can prevent the condensed water from adhering to the bottom of the lid body due to water storage in the drain trough and spilling onto the tabletop when the lid is opened.

[0072] The drain trough includes a water guiding part. Specifically, the liquid in the drain trough can flow to at least one drain port under the guidance of the water guiding part, which is beneficial to quickly discharging the condensed water in the drain trough, preventing water storage in the drain trough, further improving the cooking effect and appearance of the food ingredients, and enhancing the user experience.

[0073] In some technical solutions, optionally, the water diversion part includes a first end and a second end, and the first end is arranged closer to at least one drain opening than the second end; wherein, along the height direction of the appliance body, the first end of the water diversion part is lower than the second end of the water diversion part.

[0074] In this technical solution, it is defined that the water diversion part includes a first end and a second end. Specifically, the first end of the water diversion part is arranged closer to the drain opening than the second end of the water diversion part, and along the height direction of the appliance body, the first end of the water diversion part is lower than the second end of the water diversion part. That is to say, the water diversion part is in an inclined state and inclines towards at least one drain opening, so as to promote the flow of the condensed water in the drainage trough towards at least one drain opening, which is beneficial to the rapid discharge of the condensed water in the drainage trough, prevent the condensed water in the drainage trough from overflowing onto the food due to water storage, ensure the cooking effect of the food, and also prevent the drainage trough from adhering to the bottom edge of the cover body due to water storage, and then spill onto the tabletop when opening the cover, thus improving the user experience.

[0075] In some technical solutions, optionally, along the height direction of the appliance body, the height difference h between the second end and the first end of the water diversion part satisfies h≥1mm.

[0076] In this technical solution, it is defined that along the height direction of the appliance body, the height difference between the second end and the first end of the water diversion part is greater than or equal to 1mm, that is, the inclination angle of the water diversion part is increased to promote the rapid flow of the condensed water in the drainage trough towards at least one drain opening and be discharged, prevent the drainage trough from storing water, so as to prevent the condensed water in the drainage trough from overflowing onto the food due to water storage, ensure the cooking effect of the food, and also prevent the drainage trough from adhering to the bottom edge of the cover body due to water storage, and then spill onto the tabletop when opening the cover, thus improving the user experience.

[0077] In some technical solutions, optionally, the number of the water diversion parts is multiple, and at least one drain opening is located between two adjacent water diversion parts.

[0078] In this technical solution, it is defined that the number of the water diversion parts is multiple. Specifically, at least one drain opening is located between two adjacent water diversion parts. It can be understood that each water diversion part includes a first end and a second end. Or, each water diversion part includes two first ends and a second end, that is to say, each water diversion part includes a highest point and at least one lowest point.

[0079] That is to say, there is at least one drain outlet between the highest points of two adjacent water diversion parts, so that the condensed water in the drain groove can be promoted to flow in the direction of at least one drain outlet, which is beneficial to the rapid discharge of the condensed water in the drain groove, and further prevents water from accumulating in the drain groove, thereby preventing the drain groove from overflowing onto the food materials due to the accumulated water, thereby ensuring the cooking effect of the food materials, and also preventing the drain groove from adhering to the bottom edge of the cover body due to the accumulated water, and then spilling onto the countertop when the cover is opened, thereby improving the user experience.

[0080] In some technical solutions, optionally, the appliance body is further provided with a accommodating platform, which is located outside the drainage groove. When the cover body is covered on the appliance body, one end of the cover body facing the appliance body is in contact with the accommodating platform.

[0081] In this technical solution, it is specified that the appliance body is also provided with a accommodating platform. Specifically, the accommodating platform is located on the outside of the drainage groove. That is to say, when the cover body is provided on the appliance body, the drainage groove is located on the inner side of the hydrophilic layer, and the liquid on the hydrophilic layer can flow into the drainage groove along the hydrophilic layer. Specifically, during the operation of the cooking appliance, when the steam in the cooking cavity contacts the inner surface of the cover body with a lower temperature, condensation water is formed on the inner surface of the cover body, that is, condensation water is formed on the hydrophilic layer.

[0082] Since the hydrophilic layer is hydrophilic, the condensed water wets and spreads on the hydrophilic layer without forming water droplets. And since part of the lid body is tilted, the condensed water on the hydrophilic layer can flow down along the surface of the hydrophilic layer and enter the drainage groove. In other words, by setting up the drainage groove to collect the condensed water condensed on the hydrophilic layer, the condensed water can be discharged through the drainage groove while preventing the condensed water from dripping onto the food, thereby preventing the residual condensed water from sliding onto the countertop when the user opens the lid, thereby improving the user experience.

[0083] When the cover is placed on the appliance body, the bottom edge of the cover is in contact with the accommodating platform, that is, the bottom edge of the cover is in contact with the plane, thereby preventing the cover from shaking when placed on an uneven surface, or causing steam in the cooking cavity to overflow due to a gap or notch between the bottom edge of the cover and the surface, thereby improving the safety of the cooking appliance and ensuring the heating effect of the cooking appliance.

[0084] Optionally, the appliance body is further provided with a limiting part, specifically, the limiting part is arranged on the side of the accommodating platform away from the drainage groove. When the cover body is placed on the appliance body, that is, when the bottom edge of the cover body contacts the accommodating platform, the cover body is limited by the limiting part to prevent the cover body from shaking or deviating to cause the steam in the cooking cavity to leak, thereby further improving the safety of the cooking appliance and the heating efficiency.

[0085] Optionally, the appliance body is further provided with a guiding wall. Specifically, the guiding wall is located in the drainage groove, and the guiding wall is inclined, that is to say, the groove side wall of the drainage groove close to the accommodating platform is inclined, so as to be able to guide the condensed water, guide the condensed water on the hydrophilic layer to flow down and then into the drainage groove, rather than adhering to the bottom edge of the cover body. Furthermore, when opening the cover, it can prevent the residual condensed water from sliding onto the tabletop, further improving the user experience.

[0086] Optionally, the included angle between the guiding wall and the horizontal plane is greater than or equal to 30° and less than 90°, ensuring the guiding effect of the guiding wall on the condensed water.

[0087] Optionally, along the height direction of the appliance body, between the height h1 where the second end of the water guiding part is located and the height h2 where the accommodating platform is located, h2≥h1 is satisfied, so as to be able to quickly drain the condensed water flowing under the guidance of the water guiding part to at least one drainage port while ensuring that the condensed water flowing onto the accommodating platform can flow into the drainage groove, further preventing water storage.

[0088] In some technical solutions, optionally, the appliance body includes a base assembly, a steamer basket, and a steaming rack. Among them, the base assembly is provided with a steam generating member, the steam generating member is communicated with the cooking cavity, the steamer basket is arranged on the base assembly, the cover body is suitable for covering the steamer basket or the base assembly, and the steaming rack is arranged on the steamer basket and / or the base assembly and is located in the cooking cavity; the drainage groove is arranged on the base assembly and / or the steamer basket.

[0089] In this technical solution, it is defined that the appliance body includes a base assembly, a steamer basket, and a steaming rack. Specifically, the base assembly is provided with a steam generating member. It can be understood that when the cooking appliance works, the steam generating member can generate steam, so as to heat and cook the food ingredients in the cooking cavity through the steam.

[0090] The steamer basket is arranged on the base assembly. Specifically, the steamer basket is detachably arranged on the base assembly, so that it is possible to choose whether to place the steamer basket according to the amount of food ingredients to be cooked. Optionally, the number of steamer baskets is multiple, and the multiple steamer baskets are arranged along the height direction of the appliance body, that is, it is possible to choose a single-layer steamer basket or a multi-layer steamer basket according to the amount of food ingredients to be cooked.

[0091] It can be understood that when the steamer basket is not placed, the cover body covers the base assembly, and the steaming rack is placed on the base assembly. When the steamer basket is placed, the cover body covers the steamer basket at the top layer, and the steaming rack is placed on the base assembly or the steamer basket, or the steaming rack is placed on both the base assembly and the steamer basket. Specifically, it can be set according to actual needs.

[0092] The drainage groove is arranged on the base assembly and / or the steamer basket. Specifically, when the steamer basket is not placed, the cover body covers the base assembly. Since the drainage groove is arranged on the base assembly, the condensed water on the inner surface of the cover body can be collected.

[0093] When placing the steamer basket, the cover body is placed on the topmost steamer basket. Since a drainage groove is provided on the steamer basket, the condensed water on the inner surface of the cover body can be collected thereby.

[0094] In addition, when the steamer basket is placed, a drainage groove can also be provided on the base assembly. Specifically, after the condensed water on the inner surface of the cover body flows into the drainage groove on the steamer basket, it is discharged through at least one drainage port on the steamer basket, flows along the inner wall of the steamer basket into the drainage groove on the base assembly, and is discharged into the water receiving tray of the base assembly through at least one drainage port on the base assembly, realizing the centralized collection and treatment of the condensed water and preventing water storage.

[0095] Optionally, the steam generating member includes a heating device and a water tank, and the heating device can heat the water in the water tank to generate steam.

[0096] In some technical solutions, optionally, the base assembly includes a base and a water receiving tray. Among them, the steam generating member is provided on the base, the water receiving tray is provided on one side of the base facing the cover body and is communicated with the drainage groove; among them, when the drainage groove is provided on the base assembly, the drainage groove is provided on the water receiving tray.

[0097] In this technical solution, it is defined that the base assembly includes a base and a water receiving tray. Specifically, the steam generating member is arranged on the base, the water receiving tray is arranged on one side of the base facing the cover body, and the water receiving tray is communicated with the water receiving groove.

[0098] When placing the steamer basket, the cover body is placed on the topmost steamer basket, and drainage grooves are provided on both the water receiving tray and the steamer basket. Specifically, after the condensed water on the inner surface of the cover body flows into the drainage groove on the steamer basket, it is discharged through at least one drainage port on the steamer basket, flows along the inner wall of the steamer basket into the drainage groove on the water receiving tray, and is discharged into the collection cavity of the water receiving tray through at least one drainage port on the water receiving tray, realizing the centralized collection and treatment of the condensed water and preventing water storage.

[0099] When the steamer basket is not placed, the cover body is placed on the water receiving tray. Since a drainage groove is provided on the water receiving tray, the condensed water on the inner surface of the cover body can be collected thereby.

[0100] Optionally, the water receiving tray is removably arranged on the base, facilitating the removal of the water receiving tray from the base for treating the condensed water after the water receiving tray has collected a certain amount of condensed water.

[0101] The additional aspects and advantages of the present invention will be given in the following description section. Some will become obvious from the following description, or will be learned through the practice of the present invention. Description of the Drawings

[0102] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

[0103] Figure 1 Shows one of the structural schematic diagrams of a cooking appliance according to an embodiment of the present invention;

[0104] Figure 2 Shows a partial structural schematic diagram of a lid according to an embodiment of the present invention;

[0105] Figure 3 Shows one of the structural schematic diagrams of a steamer basket according to an embodiment of the present invention;

[0106] Figure 4 Shows a second structural schematic diagram of a steamer basket according to an embodiment of the present invention;

[0107] Figure 5 Shows Figure 4 An enlarged view of the steamer basket of the illustrated embodiment at A;

[0108] Figure 6 Shows a second structural schematic diagram of a cooking appliance according to an embodiment of the present invention.

[0109] Among them, Figures 1 to 6 The corresponding relationship between the reference numerals and the component names in the figures is as follows:

[0110] 100 lid, 110 lid body, 111 first surface, 112 second surface, 113 first plate body, 114 second plate body, 120 hydrophilic layer, 200 cooking appliance, 210 appliance body, 211 cooking cavity, 212 drain trough, 213 drain port, 214 accommodation platform, 220 water diversion part, 221 first end, 222 second end, 230 base assembly, 231 steam generating member, 232 base, 233 water receiving tray, 240 steamer basket, 250 steaming rack. Detailed implementation manners

[0111] In order to be able to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below in conjunction with the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0112] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0113] The following refers to Figures 1 to 6 to describe the lid 100 and the cooking appliance 200 provided according to some embodiments of the present invention.

[0114] In one embodiment according to the present application, as Figure 1 and Figure 2 shown, a cover body 100 is proposed. The cover body 100 includes: a cover main body 110, at least a part of the cover main body 110 is inclined; a hydrophilic layer 120, which is arranged on one side surface of the cover main body 110, and the hydrophilic layer 120 has a concavo-convex structure.

[0115] The cover body 100 provided by the embodiment of the present invention includes a cover main body 110 and a hydrophilic layer 120. Specifically, the hydrophilic layer 120 is arranged on one side surface of the cover main body 110. It can be understood that the cover body 100 is configured to be suitable for covering the appliance main body 210, wherein the appliance main body 210 is provided with a cooking cavity 211. That is to say, when the cover body 100 covers the appliance main body 210, the cover body 100 can close the cooking cavity 211 to prevent the steam in the cooking cavity 211 from dissipating during the working state of the cooking appliance 200, and ensure the heating effect of the cooking appliance 200.

[0116] Optionally, the hydrophilic layer 120 is arranged on the inner surface of the cover main body 110, that is to say, the hydrophilic layer 120 is arranged on the side surface of the cover main body 110 facing the cooking cavity 211. Or, hydrophilic layers 120 are arranged on both the inner surface and the outer surface of the cover main body 110.

[0117] The hydrophilic layer 120 has a concavo-convex structure, that is to say, the hydrophilic layer 120 is a rough layer with a concavo-convex structure, so that the hydrophilic layer 120 shows a hydrophilic surface state. When the steam in the cooking cavity 211 contacts the relatively low-temperature cover body 100, condensed water will be formed. Since the cover main body 110 is provided with the hydrophilic layer 120 and the hydrophilic layer 120 has a concavo-convex structure, the condensed water wets and quickly diffuses on the surface of the hydrophilic layer 120 to form a liquid film, rather than forming water droplets and directly dripping onto the ingredients in the cooking cavity 211, thereby ensuring the cooking effect and appearance of the ingredients.

[0118] Moreover, when the cover body 100 opens the cooking cavity 211 and places the cover body 100 on the tabletop, no water droplets will form and drip on the tabletop, improving the user experience.

[0119] At least a part of the cover main body 110 is inclined, so that after the condensed water condensed on the hydrophilic layer 120 diffuses to form a liquid film on the surface of the hydrophilic layer 120, it can flow down along the hydrophilic layer 120. That is to say, when a large amount of condensed water condenses on the inner side of the cover body 100, due to the inclination of the cover main body 110, the condensed water can flow down along the surface of the hydrophilic layer 120 and be discharged, preventing the condensed water on the inner side of the cover body 100 from dripping onto the ingredients when the amount is relatively large, and further ensuring the taste and appearance of the ingredients after cooking.

[0120] Moreover, it can also prevent the high-temperature condensed water inside the cover body 100 from scalding the user when the cover is opened, improving the use safety of the cooking appliance 200.

[0121] Specifically, when the amount of condensed water is small, the condensed water diffuses on the hydrophilic layer 120 to form a liquid film and does not form water droplets that drip. When more condensed water accumulates, after the condensed water diffuses on the hydrophilic layer 120 to form a liquid film, it flows down along the surface of the hydrophilic layer 120 and is discharged. As Figure 1 shown by the arrow direction.

[0122] As Figure 2 shown, in some embodiments, optionally, the cover body 110 includes opposite first surface 111 and second surface 112, and the first surface 111 and the second surface 112 are respectively provided with the hydrophilic layer 120.

[0123] In this embodiment, it is defined that the cover body 110 includes opposite first surface 111 and second surface 112, that is to say, the cover body 110 includes an inner surface and an outer surface, and the inner surface and the outer surface are both provided with the hydrophilic layer 120.

[0124] Since the hydrophilic layer 120 has a concavo-convex structure, that is to say, the hydrophilic layer 120 is a rough layer with a concavo-convex structure, thus making the hydrophilic layer 120 exhibit a hydrophilic surface state.

[0125] When the steam in the cooking cavity 211 contacts the relatively low-temperature cover body 100, condensed water will be formed. Since the cover body 110 is provided with the hydrophilic layer 120 and the hydrophilic layer 120 has a concavo-convex structure, the condensed water wets and quickly diffuses on the surface of the hydrophilic layer 120 to form a liquid film, rather than forming water droplets that directly drip onto the food in the cooking cavity 211, thus ensuring the cooking effect and appearance of the food. Moreover, when the cover body 100 opens the cooking cavity 211 and places the cover body 100 on the tabletop, water droplets will not be formed and drip on the tabletop, improving the user experience.

[0126] In addition, the hydrophilic layer 120 is provided on both the inner surface and the outer surface of the cover body 110, which can facilitate the formation of the hydrophilic layer 120 on the surface of the cover body 110, reduce the manufacturing difficulty of the cover body 100, improve the production efficiency of the cover body 100, and further reduce the production cost of the cooking appliance 200.

[0127] For example, in the case where the hydrophilic layer 120 is an oxidation treatment layer formed on the inner and outer surfaces of the cover body 110, during the manufacturing process of the cover body 100, the cover body 110 can be directly placed in an electrolyte solution, and under the condition of setting electrical parameters, an oxidation treatment layer is formed on each surface of the cover body 110.

[0128] In some embodiments, optionally, the concavo-convex structure includes a plurality of pits; and / or the concavo-convex structure includes a plurality of protrusions; and / or the concavo-convex structure includes a plurality of hydrophilic pores.

[0129] In this embodiment, specifically, the concavo-convex structure includes a plurality of pits. Alternatively, the concavo-convex structure includes a plurality of protrusions. Alternatively, the concavo-convex structure includes a plurality of hydrophilic pores. Alternatively, the concavo-convex structure includes a plurality of pits and a plurality of protrusions. Alternatively, the concavo-convex structure includes a plurality of pits and a plurality of hydrophilic pores. Alternatively, the concavo-convex structure includes a plurality of protrusions and a plurality of hydrophilic pores. Alternatively, the concavo-convex structure includes a plurality of protrusions, a plurality of pits and a plurality of hydrophilic pores. It can be specifically set according to actual needs.

[0130] By making the surface of the hydrophilic layer 120 have a concavo-convex structure of at least one of pits, protrusions and hydrophilic pores, the surface of the hydrophilic layer 120 is made into a rough structure, and further the hydrophilic layer 120 is formed into a hydrophilic surface state.

[0131] When the steam in the cooking cavity 211 contacts the relatively low-temperature cover body 100, condensed water will be formed. Since the cover body 110 is provided with a hydrophilic layer 120 and the hydrophilic layer 120 has a concavo-convex structure, the condensed water wets and quickly spreads on the surface of the hydrophilic layer 120 to form a liquid film, and will not form water droplets that directly drip onto the ingredients in the cooking cavity 211, thereby ensuring the cooking effect and appearance of the ingredients.

[0132] In some embodiments, optionally, when the concavo-convex structure includes a plurality of hydrophilic pores, the diameter D of at least one hydrophilic pore satisfies 1 μm ≤ D ≤ 80 μm.

[0133] In this embodiment, when the concavo-convex structure includes a plurality of hydrophilic pores, the aperture of the hydrophilic pores is defined. Specifically, the aperture of at least one hydrophilic pore is between 1 μm and 80 μm. That is to say, a micron structure is formed on the surface of the hydrophilic layer 120, so that the hydrophilic layer 120 is formed into a hydrophilic surface state, that is, the surface of the hydrophilic layer 120 has the characteristics of infiltration and diversion. At the same time, since the aperture of the hydrophilic pores is small, it can also avoid contamination of the pores by impurities and the like.

[0134] Specifically, when the steam in the cooking cavity 211 contacts the relatively low-temperature cover body 100, condensed water will be formed. Since the cover body 110 is provided with a hydrophilic layer 120 and the hydrophilic layer 120 has a plurality of hydrophilic pores, the condensed water wets and quickly spreads on the surface of the hydrophilic layer 120 to form a liquid film, and will not form water droplets that directly drip onto the ingredients in the cooking cavity 211, thereby ensuring the cooking effect and appearance of the ingredients.

[0135] Optionally, the diameter D of at least one hydrophilic pore satisfies 5 μm ≤ D ≤ 25 μm. That is, the pore diameter of the hydrophilic pore is further controlled between 5 μm and 25 μm. Thereby, while the hydrophilic layer 120 has the characteristics of infiltration and diversion, it can further avoid the contamination of pores by impurities and the like.

[0136] In some embodiments, optionally, the thickness d of the hydrophilic layer 120 satisfies 10 μm ≤ d ≤ 100 μm; and / or the wetting angle α of the hydrophilic layer 120 satisfies 0° ≤ α ≤ 40°.

[0137] In this embodiment, the value range of the thickness of the hydrophilic layer 120 is defined. Specifically, the thickness of the hydrophilic layer 120 is between 10 μm and 100 μm. Thereby, while the hydrophilic layer 120 shows a hydrophilic surface state, the processing difficulty of the hydrophilic layer 120 can be reduced, and further, the processing difficulty of the hydrophilic layer 120 is prevented from being too large, the production efficiency of the cover body 100 is improved, and the production cost of the cooking appliance 200 is reduced.

[0138] The wetting angle of the hydrophilic layer 120 is between 0° and 40°, so that the surface of the hydrophilic layer 120 has excellent hydrophilic effect. When the steam in the cooking cavity 211 contacts the cover body 100 with a lower temperature, condensed water will be formed. Since the hydrophilic layer 120 has a concave-convex structure and the wetting angle is between 0° and 40°, the condensed water wets and quickly diffuses on the surface of the hydrophilic layer 120 to form a liquid film, rather than forming water droplets that directly drip onto the ingredients in the cooking cavity 211, thereby ensuring the cooking effect and appearance of the ingredients.

[0139] Optionally, when the concave-convex structure includes a plurality of hydrophilic pores, in the cold state (room temperature state of 25 °C), the wetting angle is less than or equal to 30°, that is, the wetting angle of the hydrophilic layer 120 is between 0° and 30°, so as to further improve the hydrophilic effect on the surface of the hydrophilic layer 120.

[0140] In some embodiments, optionally, the side of the cover body 110 facing the hydrophilic layer 120 is an aluminum-based composite surface; or the cover body 110 is an aluminum-based composite part.

[0141] In this embodiment, it is defined that the side of the cover body 110 facing the hydrophilic layer 120 is an aluminum-based composite surface. Or, the cover body 110 is an aluminum-based composite part, that is, the cover body 110 is made of aluminum-based composite material. Thereby, the surface of the cover body 110 can be subjected to oxidation treatment, such as hard anodizing or micro-arc oxidation, and a hydrophilic layer 120 with a plurality of pores (hydrophilic pores), that is, a micro-nano structure, can be formed on the surface of the cover body 110. Furthermore, the hydrophilic layer 120 shows excellent hydrophilic effect. When the steam contacts the cover body 100 to form condensed water, the condensed water wets and quickly diffuses on the surface of the hydrophilic layer 120 to form a liquid film, rather than forming water droplets that drip.

[0142] Optionally, the cover body 110 is an aluminum alloy, which can improve the structural strength of the cover body 100 and help extend the service life of the cover body 100.

[0143] Optionally, a side surface of the cover body 110 facing the hydrophilic layer 120 is an aluminum alloy surface.

[0144] Optionally, the process parameters for the oxidation treatment on the surface of the cover body 110 are as follows:

[0145] Electrolyte composition: 15g / L-21g / LNa2O·nSiO2, 1g / L-5g / LNaOH, 18g / L-22g / L C3H8O3, 3g / L-8g / L(NaPO3)6.

[0146] The electrical parameters were set as follows: current 15 A, end voltage 500 V, electrolysis time 600 s, frequency 800 Hz.

[0147] That is, under the condition of set electrical parameters, the cover body 110 is placed in the above electrolyte, so that an oxide layer with a micro-nano structure can be formed on the surface of the cover body 110. The surface of the micro-nano structure close to the cover body 110 is relatively dense, and the surface away from the cover body 110 is a porous structure with certain pores.

[0148] It is understandable that after the oxide layer is formed, the irregular parts of the oxide layer surface can be polished off, that is, after the oxide layer is formed, the pore size of the hydrophilic pores on the oxide layer can be controlled by polishing to ensure the hydrophilic effect of the oxide layer.

[0149] like Figure 1 As shown, in some embodiments, optionally, the cover body 110 includes a first plate body 113 and a second plate body 114, wherein the second plate body 114 is connected to the first plate body 113, the second plate body 114 is circumferentially arranged around the center of the cover body 110, and at least a portion of the second plate body 114 is inclined.

[0150] In this embodiment, it is defined that the cover body 110 includes a first plate body 113 and a second plate body 114. Specifically, the second plate body 114 is connected to the first plate body 113, and the second plate body 114 is circumferentially arranged around the center of the cover body 110, that is, the second plate body 114 is arranged away from the center of the cover body 110 compared to the first plate body 113, that is, the second plate body 114 is located on the outer peripheral side of the first plate body 113.

[0151] At least a part of the second plate body 114 is inclined, so that after the condensed water condensed on the hydrophilic layer 120 diffuses on the surface of the hydrophilic layer 120 to form a liquid film, it can flow down along the hydrophilic layer 120. That is to say, when a large amount of condensed water accumulates inside the cover body 100, due to the inclination of the second plate body 114, the condensed water can flow down along the surface of the hydrophilic layer 120, which is beneficial to the rapid discharge of the condensed water. It prevents the condensed water from dripping onto the food when the amount of condensed water inside the cover body 100 is large, and further ensures the taste and appearance of the food after cooking.

[0152] Moreover, inclining a part of the cover body 110 near the outer edge can, while being beneficial to guiding the condensed water to flow down and discharge quickly along the hydrophilic layer 120, increase the distance between the inside of the cover body 100 and the steaming rack 250 when placing the food on the steaming rack 250, that is, increase the distance between the hydrophilic layer 120 and the food, and avoid overflowing onto the food in the case of a large amount of condensed water, further ensuring the cooking effect of the food.

[0153] Optionally, the first plate body 113 and the second plate body 114 are of an integral structure.

[0154] In some embodiments, optionally, the hydrophilic layer 120 includes one of an oxide layer, a coating layer, a chemical etching layer, a laser etching layer, a chemical deposition layer or a mechanical processing layer.

[0155] In this embodiment, it is defined that the hydrophilic layer 120 includes one of an oxide layer, a coating layer, a chemical etching layer, a laser etching layer, a chemical deposition layer or a mechanical processing layer.

[0156] Specifically, the hydrophilic layer 120 includes an oxide layer, that is, on at least one surface of the cover body 110, through an oxidation treatment method such as anodic oxidation, hard anodizing or micro-arc oxidation, an oxide layer with a concavo-convex structure is formed on at least one side surface of the cover body 110, so that the hydrophilic layer 120 exhibits hydrophilic surface characteristics.

[0157] Or, the hydrophilic layer 120 includes a coating layer, that is, on at least one side surface of the cover body 110, through a method of spraying a coating layer, a coating layer with a concavo-convex structure is formed on at least one side surface of the cover body 110, so that the hydrophilic layer 120 exhibits hydrophilic surface characteristics.

[0158] Or, the hydrophilic layer 120 includes a chemical etching layer, that is, on at least one side surface of the cover body 110, through a method of chemical etching or electrochemical etching, a chemical etching layer with a concavo-convex structure is formed on at least one side surface of the cover body 110, so that the hydrophilic layer 120 exhibits hydrophilic surface characteristics.

[0159] Alternatively, the hydrophilic layer 120 includes a laser-etched layer, that is, on at least one surface of the lid body 110, a laser etching method is used to form a laser-etched layer with a concavo-convex structure on at least one surface of the lid body 110, so that the hydrophilic layer 120 exhibits hydrophilic surface characteristics.

[0160] Alternatively, the hydrophilic layer 120 includes a chemically deposited layer, that is, on at least one surface of the lid body 110, a chemical deposition or electrochemical deposition method is used to form a chemically deposited layer with a concavo-convex structure on at least one surface of the lid body 110, so that the hydrophilic layer 120 exhibits hydrophilic surface characteristics.

[0161] Alternatively, the hydrophilic layer 120 includes a machined layer, that is, on at least one surface of the lid body 110, a machining method is used to form a machined layer with a concavo-convex structure on at least one surface of the lid body 110, so that the hydrophilic layer 120 exhibits hydrophilic surface characteristics.

[0162] According to the second aspect of the present invention, a cooking appliance 200 is provided, including the lid body 100 provided in any of the above embodiments, and thus has all the beneficial technical effects of the lid body 100, which will not be elaborated here.

[0163] As Figure 1 、 Figure 2 and Figure 6 shown, further, the cooking appliance 200 further includes an appliance body 210, the appliance body 210 is provided with a cooking cavity 211, the lid body 100 is configured to be suitable for covering the appliance body 210, and the hydrophilic layer 120 is provided on a surface of the lid body 110 facing the cooking cavity 211.

[0164] The cooking appliance 200 provided by the embodiment of the present invention includes an appliance body 210 and a lid body 100. Specifically, the appliance body 210 is provided with a cooking cavity 211, and the lid body 100 is suitable for covering the appliance body 210. That is to say, when the lid body 100 covers the appliance body 210, the lid body 100 can close the cooking cavity 211 to prevent the steam in the cooking cavity 211 from escaping during the working state of the cooking appliance 200 and ensure the heating effect of the cooking appliance 200.

[0165] The hydrophilic layer 120 is provided on a surface of the lid body 110 facing the cooking cavity 211. That is to say, the inner surface of the lid body 110 is provided with the hydrophilic layer 120, and the hydrophilic layer 120 is a rough layer with a concavo-convex structure, so that the hydrophilic layer 120 exhibits a hydrophilic surface state.

[0166] Specifically, when the steam in the cooking cavity 211 contacts the relatively cool cover body 100, condensed water is formed. Since the cover body 110 is provided with a hydrophilic layer 120 which has a concavo-convex structure, the condensed water wets and rapidly spreads on the surface of the hydrophilic layer 120 to form a liquid film, instead of forming water droplets that directly drip onto the food in the cooking cavity 211, thereby ensuring the cooking effect and appearance of the food.

[0167] Moreover, at least a part of the cover body 110 is inclined, so that after the condensed water condensed on the hydrophilic layer 120 spreads on the surface of the hydrophilic layer 120 to form a liquid film, it can flow down along the hydrophilic layer 120. That is to say, when a large amount of condensed water accumulates on the inner side of the cover body 100, due to the inclination of the cover body 110, the condensed water can flow down along the surface of the hydrophilic layer 120 and be discharged, preventing the condensed water on the inner side of the cover body 100 from dripping onto the food when the amount is large, further ensuring the taste and appearance of the food after cooking, and also preventing the high-temperature condensed water on the inner side of the cover body 100 from scalding the user when opening the cover, thus improving the use safety of the cooking appliance 200.

[0168] Optionally, the cooking appliance 200 includes a steamer, a rice cooker, a soymilk maker, a wall breaker, etc.

[0169] Such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown in

[0170] In some embodiments, optionally, a drainage groove 212 is further provided on the side of the appliance body 210 facing the cover body 100. When the cover body 100 is covered on the appliance body 210, the drainage groove 212 is located on the side of the hydrophilic layer 120 close to the cooking cavity 211, and the liquid on the hydrophilic layer 120 can flow into the drainage groove 212 along the hydrophilic layer 120.

[0171] In this embodiment, it is defined that a drainage groove 212 is further provided on the side of the appliance body 210 facing the cover body 100. Specifically, when the cover body 100 is covered on the appliance body 210 to close the cooking cavity 211, the drainage groove 212 is located on the side of the hydrophilic layer 120 close to the cooking cavity 211, that is to say, the drainage groove 212 is located inside the hydrophilic layer 120.

[0172] Since the hydrophilic layer 120 is hydrophilic, the condensed water wets and spreads on the hydrophilic layer 120 without forming water droplets that drip. And because a part of the cover body 110 is inclined, the condensed water on the hydrophilic layer 120 can flow down along the surface of the hydrophilic layer 120 and enter the drain trough 212. That is to say, by providing the drain trough 212 to collect the condensed water condensed on the hydrophilic layer 120, it is possible to prevent the condensed water from dripping onto the food ingredients, and at the same time, the condensed water can be discharged through the drain trough 212, preventing the remaining condensed water from slipping onto the tabletop when the user opens the lid, thus enhancing the user experience.

[0173] Optionally, the width of the drain trough 212 is greater than or equal to 2 mm, ensuring that the drain trough 212 can collect the condensed water on the hydrophilic layer 120 while preventing the condensed water in the drain trough 212 from overflowing onto the food ingredients, further ensuring the taste and appearance of the food ingredients after cooking.

[0174] As Figure 3 As shown, in some embodiments, optionally, the cooking appliance 200 further includes at least one drain port 213. The at least one drain port 213 is provided on the appliance body 210 and is in communication with the drain trough 212. Wherein, the drain trough 212 includes a water guiding portion 220, and the liquid in the drain trough 212 can flow to the at least one drain port 213 under the guidance of the water guiding portion 220.

[0175] In this embodiment, it is defined that the cooking appliance 200 further includes at least one drain port 213. Specifically, the at least one drain port 213 is in communication with the drain trough 212. It can be understood that the condensed water flowing into the drain trough 212 from the hydrophilic layer 120 is discharged from the drain trough 212 through the at least one drain port 213, thereby preventing the remaining condensed water from slipping onto the tabletop when the user opens the lid, enhancing the user experience.

[0176] Moreover, by providing at least one drain port 213 to discharge the condensed water in the drain trough 212, it is also possible to prevent the condensed water in the drain trough 212 from overflowing onto the food ingredients due to water storage, further improving the cooking effect of the food ingredients. And preventing the condensed water from adhering to the bottom of the cover body 100 due to water storage in the drain trough 212 and spilling onto the tabletop when opening the lid.

[0177] The drain trough 212 includes a water guiding portion 220. Specifically, the liquid in the drain trough 212 can flow to the at least one drain port 213 under the guidance of the water guiding portion 220, which is beneficial to quickly discharging the condensed water in the drain trough 212, preventing the drain trough 212 from storing water, further improving the cooking effect and appearance of the food ingredients, and enhancing the user experience.

[0178] As Figure 3As shown, in some embodiments, optionally, the water diversion part 220 includes a first end 221 and a second end 222. The first end 221 is arranged closer to at least one drain opening 213 than the second end 222. Among them, along the height direction of the appliance body 210, the first end 221 of the water diversion part 220 is lower than the second end 222 of the water diversion part 220.

[0179] In this embodiment, it is defined that the water diversion part 220 includes a first end 221 and a second end 222. Specifically, the first end 221 of the water diversion part 220 is arranged closer to the drain opening 213 than the second end 222 of the water diversion part 220. And along the height direction of the appliance body 210, the first end 221 of the water diversion part 220 is lower than the second end 222 of the water diversion part 220. That is to say, the water diversion part 220 is in an inclined state and inclined towards at least one drain opening 213, so as to promote the condensed water in the drainage groove 212 to flow towards at least one drain opening 213, which is beneficial to the rapid discharge of the condensed water in the drainage groove 212, prevent the condensed water in the drainage groove 212 from overflowing onto the food due to water storage, ensure the cooking effect of the food, and also prevent the drainage groove 212 from adhering to the bottom edge of the cover body 100 due to water storage, and then spill onto the tabletop when opening the cover, improving the user experience.

[0180] In some embodiments, optionally, along the height direction of the appliance body 210, the height difference h between the second end 222 and the first end 221 of the water diversion part 220 satisfies h≥1mm.

[0181] In this embodiment, it is defined that along the height direction of the appliance body 210, the height difference between the second end 222 and the first end 221 of the water diversion part 220 is greater than or equal to 1mm, that is, the inclination angle of the water diversion part 220 is increased to promote the rapid flow of the condensed water in the drainage groove 212 towards at least one drain opening 213 and be discharged, prevent the drainage groove 212 from storing water, so as to prevent the condensed water in the drainage groove 212 from overflowing onto the food due to water storage, ensure the cooking effect of the food, and also prevent the drainage groove 212 from adhering to the bottom edge of the cover body 100 due to water storage, and then spill onto the tabletop when opening the cover, improving the user experience.

[0182] As Figure 3 As shown, in some embodiments, optionally, the number of the water diversion parts 220 is multiple, and at least one drain opening 213 is located between two adjacent water diversion parts 220.

[0183] In this embodiment, the number of the water diversion parts 220 is defined as multiple. Specifically, at least one drain opening 213 is located between two adjacent water diversion parts 220. It can be understood that each water diversion part 220 includes a first end 221 and a second end 222. Alternatively, each water diversion part 220 includes two first ends 221 and a second end 222, that is to say, each water diversion part 220 includes a highest point and at least one lowest point.

[0184] That is to say, there is at least one drain opening 213 between the highest points of two adjacent water diversion parts 220, so as to promote the flow of the condensed water in the drain trough 212 towards the at least one drain opening 213, which is beneficial to the rapid discharge of the condensed water in the drain trough 212. At the same time, it can further prevent water storage in the drain trough 212, thereby preventing the water in the drain trough 212 from overflowing onto the food materials, ensuring the cooking effect of the food materials, and also preventing the drain trough 212 from adhering to the bottom edge of the cover body 100 due to water storage, and then spilling onto the tabletop when opening the cover, improving the user experience.

[0185] Such as Figure 1 、 Figure 4 and Figure 5 As shown in, in some embodiments, optionally, the appliance body 210 is further provided with a receiving platform 214. The receiving platform 214 is located outside the drain trough 212. When the cover body 100 is covered on the appliance body 210, one end of the cover body 100 facing the appliance body 210 contacts the receiving platform 214.

[0186] In this embodiment, it is defined that the appliance body 210 is further provided with a receiving platform 214. Specifically, the receiving platform 214 is located outside the drain trough 212, that is to say, when the cover body 100 is covered on the appliance body 210, the drain trough 212 is located inside the hydrophilic layer 120, and the liquid on the hydrophilic layer 120 can flow into the drain trough 212 along the hydrophilic layer 120. Specifically, during the operation of the cooking appliance 200, when the steam in the cooking cavity 211 contacts the inner surface of the cover body 100 with a lower temperature, condensed water is formed on the inner surface of the cover body 100, that is, condensed water is formed on the hydrophilic layer 120.

[0187] Since the hydrophilic layer 120 has hydrophilicity, the condensed water wets and diffuses on the hydrophilic layer 120 without forming water droplets dripping. And because a part of the cover body 110 is inclined, the condensed water on the hydrophilic layer 120 can flow down along the surface of the hydrophilic layer 120 and enter the drain trough 212. That is to say, by setting the drain trough 212 to collect the condensed water condensed on the hydrophilic layer 120, it is possible to prevent the condensed water from dripping onto the food materials, and at the same time, the condensed water can be discharged through the drain trough 212, preventing the residual condensed water from sliding onto the tabletop when the user opens the cover, and improving the user experience.

[0188] When the cover body 100 is covered on the appliance body 210, the bottom edge of the cover body 100 is in contact with the accommodation platform 214. That is to say, the bottom edge of the cover body 100 is in fit with the plane, so as to avoid the cover body 100 shaking when placed on an uneven surface, or the steam in the cooking cavity 211 overflowing due to gaps or notches in the fit between the bottom edge of the cover body 100 and the surface, thereby improving the safety of the cooking appliance 200 and ensuring the heating effect of the cooking appliance 200.

[0189] Optionally, the appliance body 210 is further provided with a limiting portion. Specifically, the limiting portion is arranged on the side of the accommodation platform 214 away from the drainage groove 212. When the cover body 100 is covered on the appliance body 210, that is, when the bottom edge of the cover body 100 is in contact with the accommodation platform 214, the cover body 100 is limited by the limiting portion to prevent the problem of steam leakage in the cooking cavity 211 caused by the shaking or deviation of the cover body 100, further improving the use safety of the cooking appliance 200 and the heating efficiency.

[0190] Optionally, the appliance body 210 is further provided with a guiding wall. Specifically, the guiding wall is located in the drainage groove 212 and is inclined. That is to say, the groove side wall of the drainage groove 212 close to the accommodation platform 214 is inclined, so as to be able to guide the condensed water, guide the condensed water on the hydrophilic layer 120 to flow down and enter the drainage groove 212 after flowing down, rather than adhering to the bottom edge of the cover body 100. Furthermore, when opening the cover, it is prevented that the residual condensed water slides onto the tabletop, further improving the user experience.

[0191] Optionally, the included angle between the guiding wall and the horizontal plane is greater than or equal to 30° and less than 90°, ensuring the guiding effect of the guiding wall on the condensed water.

[0192] Optionally, along the height direction of the appliance body 210, between the height h1 where the second end 222 of the water guiding portion 220 is located and the height h2 where the accommodation platform 214 is located, h2≥h1 is satisfied, so as to be able to quickly drain the condensed water guided by the water guiding portion 220 to at least one drainage port 213 while ensuring that the condensed water flowing onto the accommodation platform 214 can flow into the drainage groove 212, further preventing water storage.

[0193] Such as Figure 1 、 Figure 3 、 Figure 4 and Figure 6As shown, in some embodiments, optionally, the appliance body 210 includes a base assembly 230, a steamer 240, and a steaming rack 250. Among them, the base assembly 230 is provided with a steam generating member 231, and the steam generating member 231 communicates with the cooking cavity 211. The steamer 240 is disposed on the base assembly 230, and the cover body 100 is adapted to cover the steamer 240 or the base assembly 230. The steaming rack 250 is disposed on the steamer 240 and / or the base assembly 230 and is located within the cooking cavity 211; a drain trough 212 is disposed on the base assembly 230 and / or the steamer 240.

[0194] In this embodiment, it is defined that the appliance body 210 includes a base assembly 230, a steamer 240, and a steaming rack 250. Specifically, the base assembly 230 is provided with a steam generating member 231. It can be understood that when the cooking appliance 200 is operating, the steam generating member 231 can generate steam, thereby heating and cooking the food ingredients in the cooking cavity 211 through the steam.

[0195] The steamer 240 is disposed on the base assembly 230. Specifically, the steamer 240 is detachably disposed on the base assembly 230, so that it is possible to choose whether to place the steamer 240 according to the amount of food ingredients to be cooked. Optionally, the number of steamers 240 is multiple, and the multiple steamers 240 are arranged along the height direction of the appliance body 210, that is, it is possible to choose a single-layer steamer 240 or a multi-layer steamer 240 according to the amount of food ingredients to be cooked.

[0196] It can be understood that when the steamer 240 is not placed, the cover body 100 covers the base assembly 230, and the steaming rack 250 is placed on the base assembly 230. When the steamer 240 is placed, the cover body 100 covers the steamer 240 at the topmost layer, and the steaming rack 250 is placed on the base assembly 230 or the steamer 240, or the steaming racks 250 are placed on both the base assembly 230 and the steamer 240. Specifically, it can be set according to actual needs.

[0197] The drain trough 212 is disposed on the base assembly 230 and / or the steamer 240. Specifically, when the steamer 240 is not placed, the cover body 100 covers the base assembly 230. Since the drain trough 212 is provided on the base assembly 230, the condensed water on the inner surface of the cover body 100 can be collected.

[0198] When the steamer 240 is placed, the cover body 100 covers the steamer 240 at the topmost layer. Since the drain trough 212 is provided on the steamer 240, the condensed water on the inner surface of the cover body 100 can be collected.

[0199] In addition, when the steamer 240 is placed, a drain trough 212 can also be provided on the base assembly 230. Specifically, the condensed water on the inner surface of the cover 100 flows into the drain trough 212 on the steamer 240 and is discharged through at least one drain port 213 on the steamer 240. Then it flows along the inner wall of the steamer 240 into the drain trough 212 on the base assembly 230 and is discharged into the water receiving tray 233 of the base assembly 230 through at least one drain port 213 on the base assembly 230, realizing the centralized collection and treatment of the condensed water and preventing water storage.

[0200] Optionally, the steam generating member 231 includes a heating device and a water tank. The heating device can heat the water in the water tank to generate steam.

[0201] As Figure 1 and Figure 6 shown, in some embodiments, optionally, the base assembly 230 includes a base 232 and a water receiving tray 233. Among them, the steam generating member 231 is provided on the base 232, and the water receiving tray 233 is provided on the side of the base 232 facing the cover 100 and is communicated with the drain trough 212. Among them, when the drain trough 212 is provided on the base assembly 230, the drain trough 212 is provided on the water receiving tray 233.

[0202] In this embodiment, it is defined that the base assembly 230 includes a base 232 and a water receiving tray 233. Specifically, the steam generating member 231 is provided on the base 232, the water receiving tray 233 is provided on the side of the base 232 facing the cover 100, and the water receiving tray 233 is communicated with the water receiving trough.

[0203] When the steamer 240 is placed, the cover 100 is covered on the topmost steamer 240, and drain troughs 212 are provided on both the water receiving tray 233 and the steamer 240. Specifically, the condensed water on the inner surface of the cover 100 flows into the drain trough 212 on the steamer 240 and is discharged through at least one drain port 213 on the steamer 240. Then it flows along the inner wall of the steamer 240 into the drain trough 212 on the water receiving tray 233 and is discharged into the collection cavity of the water receiving tray 233 through at least one drain port 213 on the water receiving tray 233, realizing the centralized collection and treatment of the condensed water and preventing water storage.

[0204] When the steamer 240 is not placed, the cover 100 is covered on the water receiving tray 233. Since the drain trough 212 is provided on the water receiving tray 233, the condensed water on the inner surface of the cover 100 can be collected.

[0205] Optionally, the water receiving tray 233 is removably provided on the base 232, which is convenient for removing the water receiving tray 233 from the base 232 to treat the condensed water after the water receiving tray 233 has collected a certain amount of condensed water.

[0206] In the description of this specification, terms such as "connection", "installation", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0207] In the description of this specification, the description of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0208] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A cover body, characterized in that, Comprising: A cover body, at least a part of the cover body being inclined; A hydrophilic layer provided on one surface of the cover body, the hydrophilic layer having a concavo-convex structure.

2. The cover body according to claim 1, wherein The cover body comprises a first surface and a second surface facing away from each other, and the hydrophilic layers are respectively provided on the first surface and the second surface.

3. The cover body according to claim 1, wherein The concavo-convex structure comprises a plurality of pits; and / or The concavo-convex structure comprises a plurality of convex portions; and / or The concavo-convex structure comprises a plurality of hydrophilic pores.

4. The cover body according to claim 3, wherein When the concavo-convex structure comprises a plurality of the hydrophilic pores, the diameter D of at least one of the hydrophilic pores satisfies 1μm ≤ D ≤ 80μm.

5. The cover body according to any one of claims 1 to 4, wherein The thickness d of the hydrophilic layer satisfies 10μm ≤ d ≤ 100μm; and / or The wetting angle α of the hydrophilic layer satisfies 0° ≤ α ≤ 40°.

6. The cover body according to any one of claims 1 to 4, wherein The side surface of the cover body facing the hydrophilic layer is an aluminum-based composite surface; or The cover body is an aluminum-based composite part.

7. The cover according to any one of claims 1 to 4, characterized in that, The cover body comprises: A first plate body; A second plate body connected to the first plate body, the second plate body being circumferentially arranged around the center of the cover body, and at least a part of the second plate body being inclined.

8. The cover body according to any one of claims 1 to 4, wherein The hydrophilic layer comprises one of an oxide layer, a coating layer, a chemical etching layer, a laser etching layer, a chemical deposition layer or a mechanical processing layer.

9. A cooking appliance, characterized in that, Comprising: The cover body according to any one of claims 1 to 8; An appliance body provided with a cooking cavity, the cover body being configured to be suitable for covering the appliance body, and the hydrophilic layer being provided on one surface of the cover body facing the cooking cavity.

10. The cooking appliance according to claim 9, wherein A drainage groove is further provided on one side of the appliance body facing the cover body. When the cover body covers the appliance body, the drainage groove is located on one side of the hydrophilic layer close to the cooking cavity, and the liquid on the hydrophilic layer can flow into the drainage groove along the hydrophilic layer.

11. The cooking appliance according to claim 10, wherein, The cooking appliance further comprises: At least one drainage port provided on the appliance body and communicating with the drainage groove; Wherein, the drainage groove comprises a water guiding portion, and the liquid in the drainage groove can flow to at least one drainage port under the guidance of the water guiding portion.

12. The cooking appliance according to claim 11, wherein The water guiding portion comprises a first end and a second end, and the first end is arranged closer to at least one drainage port than the second end; Wherein, along the height direction of the appliance body, the first end of the water guiding portion is lower than the second end of the water guiding portion.

13. The cooking appliance according to claim 12, wherein Along the height direction of the appliance body, the height difference h between the second end and the first end of the water guiding portion satisfies h ≥ 1mm.

14. The cooking appliance according to claim 12, wherein: the number of the water guiding parts is multiple, and at least one of the drain openings is located between two adjacent water guiding parts.

15. The cooking appliance according to claim 12, wherein: the appliance body is further provided with a receiving platform located outside the drain trough, and when the cover body covers the appliance body, one end of the cover body facing the appliance body contacts the receiving platform.

16. The cooking appliance according to any one of claims 10 to 15, characterized in that, The appliance body includes: a base assembly provided with a steam generating member, and the steam generating member communicates with the cooking cavity; a steamer disposed on the base assembly, and the cover body is adapted to cover the steamer or the base assembly; a steaming rack disposed on the steamer and / or the base assembly and located in the cooking cavity; wherein, the drain trough is disposed on the base assembly and / or the steamer.

17. The cooking appliance according to claim 16, characterized in that, The base assembly includes: a base, and the steam generating member is disposed on the base; a water receiving tray disposed on a side of the base facing the cover body and communicating with the drain trough; wherein, when the drain trough is disposed on the base assembly, the drain trough is disposed on the water receiving tray.

Images