Cooking utensil

Abstract

The cooking utensil comprises a cooking main body, a cover body assembly and a bubble breaking device, the cooking main body comprises a pot body, a cooking cavity with an opening is defined by the pot body, the cover body assembly is movably arranged on the cooking main body and used for opening and closing the opening, and the bubble breaking device comprises an electric arc generating device. The electric arc generating device is arranged on the cover body assembly and comprises a plurality of discharging parts, the multiple discharging parts are arranged on the side, facing the cooking cavity, of the cover body assembly at intervals so that bubble breaking electric arcs can be generated on the upper portion of the cooking cavity, the cooking utensil has the more efficient anti-overflow bubble breaking function, high-power continuous boiling treatment can be conducted on food, the food can be cooked more rapidly, and the cooking efficiency is improved. And the cooked food is more delicious.

Description

Technical Field

[0001] This utility model relates to the field of cooking utensil technology, and more specifically, to a cooking utensil. Background Technology

[0002] Traditional cooking appliances often overflow during cooking. To address this, they are equipped with anti-overflow devices that break bubbles. However, the anti-overflow devices used in current technology are not very effective. Even under intense and continuous boiling, overflow can still occur. Therefore, cooking appliances need to actively reduce their operating power to prevent overflow. This results in less intense and continuous boiling during cooking, poor cooking results, and longer cooking times, indicating room for improvement. Utility Model Content

[0003] This invention aims to at least partially solve one of the aforementioned technical problems in the prior art. To this end, this invention proposes a cooking appliance with a more efficient anti-overflow and anti-bubbling function, capable of high-power continuous boiling of food, enabling faster cooking and resulting in more delicious food.

[0004] A cooking appliance according to an embodiment of the present invention includes: a cooking body, the cooking body including a pot body defining a cooking cavity with an opening; a lid assembly movably disposed on the cooking body for opening and closing the opening; and a bubble-breaking device including an arc-generating device disposed on the lid assembly and including a plurality of discharge parts, the plurality of discharge parts being spaced apart and arranged on the side of the lid assembly facing the cooking cavity to generate a bubble-breaking arc in the upper part of the cooking cavity.

[0005] According to the embodiments of the present invention, the cooking appliance has a more efficient anti-overflow and anti-bubbling function, can perform high-power continuous boiling treatment on food, can cook food faster, and the cooked food is more delicious.

[0006] In addition, the cooking appliance according to the utility model embodiment may also have the following additional technical features:

[0007] According to some embodiments of the present invention, the plurality of discharge portions are arranged such that: a portion of the discharge portions are located on an imaginary circle, and the remaining discharge portions are located inside the imaginary circle; or, all the discharge portions are located on the same imaginary circle; wherein, the area of ​​the imaginary circle is S1, the area of ​​the opening is S2, and S2 / 2 ≤ S1 < S2.

[0008] According to some embodiments of the present invention, the plurality of discharge portions are arranged such that: a portion of the discharge portions are located on an imaginary circle, and the remaining discharge portions are located within the imaginary circle; or, all the discharge portions are located on the same imaginary circle; wherein, the cover assembly is provided with a steam outlet, and the steam outlet is located within the imaginary circle.

[0009] According to some embodiments of the present invention, the center of the imaginary circle is located at the center of the cover assembly, and the steam outlet is positioned close to the arc of the imaginary circle.

[0010] According to some embodiments of the present invention, the plurality of discharge portions include a first discharge portion and a second discharge portion, the plurality of first discharge portions are located on a first imaginary circle, the plurality of second discharge portions are located on a second imaginary circle, and the first imaginary circle is located outside the second imaginary circle; wherein, the steam outlet is located between the first imaginary circle and the second imaginary circle.

[0011] According to some embodiments of the present invention, the cover assembly includes: a cover body, on which an exhaust valve is provided and the exhaust valve defines an exhaust passage; a cover plate assembly, which is detachably disposed on the side of the cover body facing the cooking cavity, the steam outlet is disposed on the cover plate assembly, and the exhaust passage connects the external space of the cover body and the steam outlet.

[0012] According to some embodiments of the present invention, the cover assembly includes: a cover body; a cover plate assembly, the cover plate assembly being detachably disposed on the side of the cover body facing the cooking cavity, the cover plate assembly including a movable cover plate and a sealing ring, the sealing ring surrounding the movable cover plate; wherein, a plurality of the discharge parts are disposed on the movable cover plate and protrude from the side surface of the movable cover plate opposite to the cover body.

[0013] According to some embodiments of the present invention, the movable cover plate is provided with a plurality of mounting holes, and the plurality of discharge parts are installed into the plurality of mounting holes in a corresponding manner.

[0014] According to some embodiments of the present invention, the movable cover plate is a metal cover plate, and the movable cover plate is integrally formed with the plurality of discharge parts.

[0015] According to some embodiments of the present invention, the movable cover plate is provided with an insulating plate on the side opposite to the cover body, and the insulating plate has a clearance hole for avoiding the discharge part; or, the movable cover plate is a metal sealing plate, and the thickness of the metal sealing plate is less than 0.6 mm; or, the movable cover plate is a metal mesh plate.

[0016] According to some embodiments of the present invention, the bubble-breaking device is an electric arc generating device, and the end of the discharge part facing the cooking cavity has a pointed end.

[0017] According to some embodiments of this utility model, the cooking appliance is a rice cooker. When the rice cooker is in the boiling stage and the heating element is controlled to work at high power, the rice cooker controls the bubble-breaking device to work.

[0018] According to some embodiments of this utility model, the cooking appliance is a pressure cooker, and when the pressure cooker's exhaust valve is venting, the pressure cooker controls the bubble-breaking device to work. Attached Figure Description

[0019] Figure 1 This is a partial cross-sectional view of a cooking appliance according to an embodiment of the present utility model;

[0020] Figure 2 yes Figure 1 A magnified view of a portion at point A;

[0021] Figure 3 This is a partial cross-sectional view of a cooking appliance according to an embodiment of the present utility model;

[0022] Figure 4 yes Figure 3 A magnified view of the area at point B;

[0023] Figure 5 This is a structural schematic diagram of the cover plate assembly according to an embodiment of the present utility model.

[0024] Figure label:

[0025] 100 cooking utensils

[0026] Cooking body 1, pot body 11, cooking cavity 12, opening 13

[0027] Cover assembly 22,

[0028] Movable cover 221, steam outlet 2211, mounting hole 2212, sealing ring 222, discharge part 223, tip 2231

[0029] Bubble-breaking device 3, arc-generating device 31, first discharge section 32, second discharge section 33

[0030] Insulating plate 4, clearance hole 41

[0031] First imaginary circle 6, second imaginary circle 7. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] Traditional cooking appliances often overflow during the cooking process. To prevent this, cooking appliances are equipped with bubble-breaking and overflow-prevention devices. However, the overflow-prevention devices used in the current technology are not very effective. Even under intense and continuous boiling, overflow can still occur. Therefore, cooking appliances need to actively reduce their operating power to prevent overflow, which results in less intense and continuous boiling during the cooking process, poor cooking effect, and longer cooking time.

[0037] Therefore, this utility model embodiment designs a method that uses an electric arc mesh to prevent large-area overflow and bubble breaking, and uses the electric arc mesh to process food. On the one hand, it improves the overflow prevention effect of the cooking appliance. Through the highly efficient overflow and bubble breaking effect, it ensures that the cooking appliance will not overflow even under intense and continuous boiling. The cooking appliance does not need to reduce its operating power, and the boiling process during cooking can be more intense and continuous, improving the cooking effect and reducing the cooking time. On the other hand, the electric arc mesh can process the food, which is conducive to the Maillard reaction in the food, making the cooked food more delicious.

[0038] The following is for reference. Figures 1-5 A cooking appliance 100 according to an embodiment of the present utility model is described.

[0039] The cooking appliance 100 according to an embodiment of the present invention may include: a cooking body 1, a lid assembly, and a bubble-breaking device 3.

[0040] The cooking body 1 includes a pot body 11, which defines a cooking cavity 12 with an opening 13. Food is cooked in the cooking cavity 12 defined by the pot body 11. The user puts food into the cooking cavity 12 through the opening 13. After the food boils, the boiling bubbles generated also overflow outward through the opening 13 of the cooking cavity 12.

[0041] The lid assembly is movably mounted on the cooking body 1 and is used to open and close the opening 13. When the lid assembly opens the opening 13, the user can put food into the cooking cavity 12 through the opening 13. When the lid assembly closes the opening 13, the lid assembly and the pot body 11 together define a closed cooking cavity 12. The food in the cooking cavity 12 is continuously heated during the cooking process and generates a large number of bubbles. The bubbles will overflow out of the pot body 11 through the opening 13 and overflow out of the cooking appliance 100 through the gap between the lid assembly and the pot body 11 and the venting structure provided on the lid assembly. This will not only cause dirt on the cooking surface, but also cause moisture loss in the cooking cavity 12, affecting the cooking effect of the food.

[0042] The defoaming device 3 of this application includes an arc generating device 31, which achieves defoaming by generating a defoaming arc at the discharge section 223.

[0043] The electric arc generating device 31 can generate an electric arc, along with light and heat energy. The electric arc and light energy can effectively reduce the surface tension of the bubble wall and accelerate the bubble wall rupture. When the extremely high temperature comes into contact with the bubble, the gas inside the bubble will expand rapidly due to the heat, resulting in a sudden increase in the pressure inside the bubble, thereby achieving bubble rupture.

[0044] Furthermore, under certain conditions, during the formation of the electric arc, the plasma expands at high speed, forming shock waves and directional airflows that directly impact the bubble wall, disrupting the bubble's stability, causing the bubble wall to deform, and ultimately leading to the bubble's rupture.

[0045] The electric arc degassing method, with its concentrated and high-intensity energy, directly targets the bubbles generated after boiling, causing them to break rapidly. Compared to traditional mechanical degassing wheels or blowers, electric arc degassing can process more bubbles in a shorter time, improving degassing efficiency. Because electric arc degassing acts directly on the bubbles through energy conversion without physical contact, it leaves no rice water or other residues inside the equipment. This reduces cleaning difficulty and avoids hygiene problems caused by mold growth from residues.

[0046] The heat generated by the electric arc discharge is released into the pot body 11, which can assist in heating food and reduce overall energy consumption. Compared with the noise of the traditional blower bubble-breaking device 3, the electric arc bubble-breaking only produces a slight ionization sound, improving the user experience. Furthermore, compared with the traditional bubble-breaking device 3, the electric arc bubble-breaking avoids direct contact between the device and the bubbles, reducing the difficulty of cleaning.

[0047] Arc degassing technology is not limited by factors such as the heating power of the rice cooker or the viscosity of the food, and can maintain a stable degassing effect under various cooking conditions. Whether cooking rice, porridge, or even ingredients that are prone to burning, it can effectively prevent foam from overflowing. Arc degassing technology can complete the degassing process in a short time and also reduces the safety hazards caused by prolonged high-temperature operation.

[0048] In summary, using an electric arc to break bubbles and prevent overflow not only improves the efficiency of bubble breaking and reduces residues, but also has strong adaptability and high safety.

[0049] In the prior art, the bubble-breaking and overflow-prevention device installed in the cooking appliance 100 is usually located at the vent on the lid assembly, providing localized bubble-breaking and overflow-prevention treatment at the vent, resulting in low bubble-breaking efficiency. The bubble-breaking device 3 of this application can break up bubbles generated by boiling food in the cooking cavity 12 over a large area, resulting in high bubble-breaking efficiency.

[0050] Specifically, the arc generating device 31 can be a Tesla coil or similar device, capable of generating an electric arc, light energy, heat energy, and shock waves. The arc generating device 31 is located on the cover assembly and includes multiple discharge sections 223. These discharge sections 223 are spaced apart on the side of the cover assembly facing the cooking cavity 12 to generate a bubble-breaking arc in the upper part of the cooking cavity 12. The upper part of the cooking cavity 12 can include the upper space within the cooking cavity 12 or the space located above the cooking cavity 12. The multiple discharge sections 223, spaced apart on the side of the cover assembly facing the cooking cavity 12, work together to generate a bubble-breaking arc in the upper part of the cooking cavity 12. This combined action creates a large-area arc network, providing large-area spill prevention and allowing for food processing using the arc network.

[0051] By using a large-area electric arc mesh for overflow prevention, the cooking appliance 100's overflow prevention effect is improved, achieving large-area bubble breaking. Through the highly efficient overflow prevention and bubble breaking effect, it is ensured that the cooking appliance 100 will not overflow even under intense and continuous boiling. The cooking appliance 100 does not need to reduce its operating power, and the boiling process during cooking can be more intense and continuous, improving the cooking effect and reducing cooking time. On the other hand, the electric arc mesh can process the food, which is conducive to the Maillard reaction in the food, making the cooked food more delicious.

[0052] According to the embodiment of the present invention, the cooking appliance 100 has a more efficient anti-overflow and anti-bubbling function, can perform high-power continuous boiling treatment on food, can cook food faster, and the cooked food is more delicious.

[0053] According to some embodiments of this utility model, such as Figure 5 As shown, the multiple discharge sections 223 are distributed as follows: some discharge sections 223 are located on an imaginary circle, and the remaining discharge sections 223 are located inside the imaginary circle; or, all discharge sections 223 are located on the same imaginary circle. Here, the discharge sections 223 being located on an imaginary circle can be understood as the projection center of the discharge section 223 being located on the imaginary circle, or it can be understood as a portion of the projection of the discharge section 223 being located on the imaginary circle.

[0054] Multiple discharge sections 223 are arranged in a certain space, and the electric fields generated by each discharge section 223 are superimposed. When multiple discharge sections 223 simultaneously apply voltage to a certain range, the electric field distribution around them will change, and the electric field strength will increase in some areas. If the electric field strength in these areas exceeds the breakdown field strength of the gas, it will cause the gas to ionize, forming new conductive channels, allowing the electric arc to extend and connect between different electrodes, thereby forming an electric arc network.

[0055] Multiple discharge sections 223 located on the imaginary circle can interact with each other, and the electric arc can extend and connect among multiple discharge sections 223 located on the same imaginary circle to form a ring-shaped electric arc network.

[0056] By constraining the distribution of the discharge section 223 by using an imaginary circle, the number of discharge sections 223 can be reduced while ensuring the coverage efficiency of the arc network. For example, the coverage of the arc network can be achieved by increasing the range of the arc generated by the discharge of a single discharge section 223, thereby reducing manufacturing costs and maintenance complexity.

[0057] The layout of the discharge section 223 is clearly defined within an imaginary circle, which also avoids placing the discharge section 223 in hard-to-clean corner areas and reduces the risk of residue accumulation.

[0058] The discharge section 223 is distributed along an imaginary circle rather than randomly arranged, which optimizes the internal space utilization of the cover assembly, avoids conflicts with components such as the exhaust structure and sensors, and reduces the risk of electromagnetic interference from electric arcs to electronic components.

[0059] The discharge sections 223 located on the imaginary circle form the outer ring discharge section 223. The outer ring discharge sections 223, when discharging together, can form an outer ring arc network. The discharge sections 223 located inside the imaginary circle form the inner ring discharge section 223. The inner ring discharge sections 223, when discharging together, can form an inner ring arc network. The inner ring discharge sections 223 are used to centrally process the dense bubbles generated in the high-temperature zone at the center of the pot body 11. The arc network formed by the outer ring discharge sections 223 can cover the area from the edge to the center of the opening 13 of the pot body 11, breaking the bubbles in this area and forming an outer ring-shaped interception network. The inner ring discharge sections 223 and the outer ring discharge sections 223 work together to achieve omnidirectional coverage and bubble breaking "from the outside in".

[0060] For example, when cooking porridge, a large number of bubbles are easily generated in the central area of ​​the opening 13 due to starch gelatinization. The inner discharge part 223 can quickly break down these bubbles in the central area. Small bubbles are slowly formed in the edge area of ​​the opening 13 due to water evaporation. The outer discharge part 223 can intercept the bubbles and prevent the liquid from overflowing.

[0061] In some embodiments, the outer ring discharge section 223 and the inner ring discharge section 223 can perform the bubble-breaking task separately or jointly through intelligent control, or the discharge intensity of the inner ring discharge section 223 and / or the outer ring discharge section can be adjusted according to the bubble state and amount in the pot body 11, so that the bubble-breaking device 3 can flexibly deal with ingredients of different viscosity. For example, when cooking thin porridge with the cooking utensil 100, the inner ring discharge section 223 and the outer ring discharge section 223 work together to break bubbles, while when cooking thick soup with the cooking utensil 100, the inner ring discharge section 223 needs a higher discharge intensity, and the bubble-breaking device 3 focuses on breaking bubbles at the center of the pot body 11.

[0062] When all the discharge sections 223 are located on the same imaginary circle, a ring-shaped bubble-breaking area is formed in the cooking cavity 12. The bubbles in the cooking cavity 12 flow from the center to the periphery or from the periphery to the center. The bubbles will continuously flow to the area where the ring-shaped electric arc network is formed and break under the action of the electric arc network. The ring-shaped electric arc network can break the continuity of the bubbles and prevent the bubbles from accumulating and overflowing.

[0063] The area of ​​the imaginary circle is S1, and the area of ​​the opening 13 is S2, where S2 / 2 ≤ S1 < S2.

[0064] By limiting the area of ​​the imaginary circle to be no less than half the area of ​​opening 13 and less than the area of ​​opening 13, the arc coverage range can be optimized, the bubble breaking efficiency can be improved, and the high-incidence area of ​​bubbles can be accurately covered.

[0065] Specifically, by arranging the discharge unit 223 on an imaginary circle and controlling the area of ​​the imaginary circle to be no less than half the area of ​​the opening 13, it can be ensured that the electric arc mesh covers at least half of the area of ​​the opening 13 of the pot body 11. This design can focus on covering the area where foam generation is most concentrated, namely the boiling core area in the center of the pot body 11, and directly and efficiently destroy the source of bubble generation. The coverage area of ​​the electric arc mesh highly overlaps with the high-temperature core area of ​​the cooking cavity 12 during boiling, and the bubble membrane is quickly broken through by concentrating the electric arc energy, thus shortening the bubble breaking time.

[0066] With the efficient anti-overflow and bubble-breaking effect of the bubble-breaking device 3, the cooking appliance 100 can continuously boil food at high power, which can cook food faster and make the food more delicious.

[0067] By limiting the area of ​​the imaginary circle to be smaller than the area of ​​the opening 13, redundant coverage can be avoided, preventing the arc mesh from extending excessively into non-critical areas, such as the edge of the pot body 11, thus reducing energy waste. Simultaneously, it prevents the arc density from being too low, which would reduce the bubble-breaking effect and prevent the arc mesh coverage from exceeding the food distribution area, thus avoiding concentrated high temperatures that could lead to localized scorching or nutrient loss. The geometric constraint of the imaginary circle also ensures that the discharge section 223 maintains a reasonable distance from the edge of the opening 13 of the pot body 11, preventing the arc from directly contacting the metal parts of the pot body 11 and causing short circuits or abnormal discharges, thereby improving equipment safety.

[0068] The ratio of the area covered by the electric arc mesh to the area of ​​the opening 13 is not less than 0.5, which can also ensure that the electric arc energy is applied evenly to the surface of the food, promote the Maillard reaction, and enhance the flavor and color of the food.

[0069] Reference Figure 3 and Figure 5 When multiple discharge sections 223 are distributed such that a portion of the discharge sections 223 are located on an imaginary circle and the remaining discharge sections 223 are located inside the imaginary circle.

[0070] The discharge sections 223 located on the imaginary circle form the outer ring discharge section 223. The outer ring discharge sections 223, when discharging together, can form an outer ring arc network. The discharge sections 223 located inside the imaginary circle form the inner ring discharge section 223. The inner ring discharge sections 223, when discharging together, can form an inner ring arc network. The inner ring discharge sections 223 are used to centrally process the dense bubbles generated in the high-temperature zone at the center of the pot body 11. The arc network formed by the outer ring discharge sections 223 can cover the area from the edge to the center of the opening 13 of the pot body 11, breaking the bubbles in this area and forming an outer ring-shaped interception network. The inner ring discharge sections 223 and the outer ring discharge sections 223 work together to achieve omnidirectional coverage and bubble breaking "from the outside in".

[0071] For example, when cooking porridge, a large number of bubbles are easily generated in the central area of ​​the opening 13 due to starch gelatinization. The inner discharge part 223 can quickly break down these bubbles in the central area. Small bubbles are slowly formed in the edge area of ​​the opening 13 due to water evaporation. The outer discharge part 223 can intercept the bubbles and prevent the liquid from overflowing.

[0072] In some embodiments, the outer ring discharge section 223 and the inner ring discharge section 223 can perform the bubble-breaking task separately or jointly through intelligent control, or the discharge intensity of the inner ring discharge section 223 and / or the outer ring discharge section can be adjusted according to the bubble state and amount in the pot body 11, so that the bubble-breaking device 3 can flexibly deal with ingredients of different viscosity. For example, when cooking thin porridge with the cooking utensil 100, the inner ring discharge section 223 and the outer ring discharge section 223 work together to break bubbles, while when cooking thick soup with the cooking utensil 100, the inner ring discharge section 223 needs a higher discharge intensity, and the bubble-breaking device 3 focuses on breaking bubbles at the center of the pot body 11.

[0073] Reference Figure 1 When all the discharge sections 223 are located on the same imaginary circle, a ring-shaped bubble-breaking region is formed within the cooking cavity 12. Bubbles flow from the center outwards within the cooking cavity 12, continuously circulating towards the area with the ring-shaped arc mesh and bursting under the action of the arc mesh. This ring-shaped arc mesh breaks the continuity of the bubbles, preventing bubble accumulation and overflow. The ring-shaped arc mesh region maintains continuous boiling in the central area of ​​the cooking cavity 12, and the arc mesh breaks bubbles to maintain the gas pressure and temperature within the cooking cavity 12, reducing the risk of overflow caused by sudden boiling.

[0074] The lid assembly is equipped with a steam outlet 2211 located within an imaginary circle. The steam outlet 2211 discharges steam to form a low-pressure zone, which accelerates the flow of liquid in the pot from the edge to the center, enhances heat circulation, and makes the food more evenly heated. At the same time, the flowing liquid carries the edge bubbles into the arc action area, improving the bubble breaking efficiency. Thus, steam discharge and bubble breaking can work together. When steam is discharged from the steam outlet 2211, it drives the bubbles to gather towards the steam outlet 2211, preventing the steam and foam from escaping from the edge gaps. During the gathering process towards the steam outlet 2211, the bubbles will pass through the arc network area formed by the discharge part 223 on the imaginary circle, and the arc network directly breaks the bubble membrane, preventing the steam and bubbles from escaping from the steam outlet 2211.

[0075] According to some embodiments of this utility model, such as Figure 5 As shown, the center of the imaginary circle is located at the center of the lid assembly. The core of the lid assembly is also the center of the opening 13 of the cooking cavity 12. The circle of the imaginary circle coincides with the center of the lid assembly. The center of the imaginary circle corresponds to the core high-temperature area where the liquid in the cooking cavity 12 boils most violently, which is above the central area of ​​the pot body 11. The discharge part 223 is symmetrically distributed along the center of the circle, forming a ring-shaped electric arc network around the heat source, which can accurately surround and cover the dense area where bubbles are generated.

[0076] Among them, combined Figure 1 , Figure 3 and Figure 5 In the illustrated embodiment, the steam outlet 2211 is positioned close to the arc of the imaginary circle, rather than outside the imaginary circle. This allows the airflow generated by the steam discharge to pull edge bubbles towards the imaginary circle. As bubbles generated at the edge of the pot body 11 rise, they are carried towards the steam outlet by the steam flow. Regardless of the direction from which the bubbles approach the steam outlet 2211, they must pass through the arc area of ​​at least one discharge section 223. The fact that the steam outlet 2211 is positioned close to the arc of the imaginary circle, rather than at the center, prolongs the time the bubbles remain within the arc area, ensuring that the bubbles have multiple opportunities to be broken down by the arc. For example, bubbles generated at the edge of the pot body 11 furthest from the steam outlet 2211 must traverse the entire diameter of the imaginary circle to reach the steam outlet 2211, passing through the arc coverage areas of multiple discharge sections 223 along the way, significantly increasing the probability of being broken down. The steam outlet 2211 is close to, but not directly above, the arc network to prevent high-temperature, high-humidity steam from directly contacting the arc and causing ionization anomalies such as arc flashing or short circuits.

[0077] According to some embodiments of this utility model, such as Figure 3 and Figure 5As shown, the plurality of discharge sections 223 include a first discharge section 32 and a second discharge section 33. The plurality of first discharge sections 32 are located on a first imaginary circle 6, and the plurality of second discharge sections 33 are located on a second imaginary circle 7. The first imaginary circle 6 is located outside the second imaginary circle 7.

[0078] The first discharge section 32, when discharged together, forms an outer arc network, while the second discharge section 33, when discharged together, forms an inner arc network. The second discharge section 33 is used to centrally process the dense bubbles generated in the high-temperature zone at the center of the pot body 11. The arc network formed by the first discharge sections 32 covers the area from the edge to the center of the opening 13 of the pot body 11, breaking the bubbles within this area and forming an outer ring-shaped interception network. The inner and outer discharge sections 223 work together to achieve comprehensive bubble-breaking coverage "from the outside in."

[0079] For example, when cooking porridge, a large number of bubbles are easily generated in the central area of ​​the opening 13 due to starch gelatinization. The second discharge unit 33 can quickly break down these bubbles in the central area. Small bubbles are slowly formed in the edge area of ​​the opening 13 due to water evaporation. The outer first discharge unit 32 can intercept the bubbles and prevent the liquid from overflowing.

[0080] In some embodiments, the first discharge unit 32 and the second discharge unit 33 can perform the bubble-breaking task separately or jointly through intelligent control, or the discharge intensity of the second discharge unit 33 and / or the first discharge unit 32 can be adjusted according to the bubble state and amount in the pot 11, so that the bubble-breaking device 3 can flexibly cope with ingredients of different viscosity. For example, when cooking thin porridge with the cooking utensil 100, the second discharge unit 33 and the first discharge unit 32 work together to break the bubbles, while when cooking thick soup with the cooking utensil 100, the second discharge unit 33 needs a higher discharge intensity, and the bubble-breaking device 3 focuses on breaking the bubbles at the center of the pot 11.

[0081] Among them, reference Figure 3 and Figure 5 The steam outlet 2211 is located between the first imaginary circle 6 and the second imaginary circle 7.

[0082] That is, the steam outlet 2211 is located inside the first imaginary circle 6 and outside the second imaginary circle 7. Thus, the airflow generated by the steam discharge can be used to pull the edge bubbles toward the steam outlet 2211. As the bubbles generated at the edge of the pot body 11 rise, they are driven by the steam flow to move toward the steam outlet. No matter which direction the bubbles approach the steam outlet 2211 from, they must pass through at least the arc action range of the first discharge part 32 or the arc action range of the second discharge part 33 corresponding to the first imaginary circle 6.

[0083] The steam outlet 2211 is located between the first imaginary circle 6 and the second imaginary circle 7, which can prolong the time that the bubble stays within the arc's range, ensuring that the bubble has multiple opportunities to be broken down by the arc. For example, a bubble generated at the edge of the pot body 11, which is furthest from the steam outlet 2211, needs to pass through the arc range of the first discharge section 32 once and the arc range of the second discharge section 33 twice before it can reach the steam outlet 2211. Along the way, it must pass through the arc coverage areas of multiple discharge sections 223, which significantly increases the probability of being broken down.

[0084] According to some embodiments of the present invention, the cover assembly includes: a cover body and a cover plate assembly 22. The cover body is provided with an exhaust valve, and the exhaust valve defines an exhaust channel. The cover plate assembly 22 is detachably disposed on the side of the cover body facing the cooking cavity 12. A steam outlet 2211 is disposed on the cover plate assembly 22. The exhaust channel connects the external space of the cover body and the steam outlet 2211.

[0085] Steam vent 2211 is located on the removable cover assembly 22, allowing users to directly remove the cover assembly 22 to clean the steam vent 2211 and surrounding residues such as rice water and grease, avoiding cleaning dead spots caused by the complex structure of traditional one-piece covers. The exhaust channel is defined by the exhaust valve on the cover body, forming a one-way path from the steam vent 2211 to the outside, avoiding heat loss or local pressure imbalance caused by random steam diffusion, ensuring the fluid flow direction in the cooking cavity 12. The cover body carries the exhaust valve and possibly integrated circuits, such as the power supply structure of the discharge unit 223, while the cover assembly 22 only has the steam vent 2211, ensuring effective isolation between high-temperature and high-humidity steam and electronic components, reducing the risk of short circuits.

[0086] According to some embodiments of the present invention, the cover assembly includes a cover body and a cover plate assembly 22, the cover plate assembly 22 being detachably disposed on the side of the cover body facing the cooking cavity 12, such as... Figure 1 and Figure 3 As shown, the cover plate assembly 22 includes a movable cover plate 221 and a sealing ring 222. The sealing ring 222 surrounds the movable cover plate 221 to ensure the sealing effect between the edge of the movable cover plate 221 and the pot body 11, prevent air bubbles from escaping through the gap between the movable cover plate 221 and the pot body 11, and ensure that steam can only be discharged to the outside through the steam outlet 2211.

[0087] Multiple discharge sections 223 are disposed on the movable cover plate 221. The discharge sections 223 are located on the detachable movable cover plate 221, and the power is automatically cut off when disassembling and cleaning, which improves safety. The discharge sections 223 protrude from the side surface of the movable cover plate 221 opposite to the cover body.

[0088] The discharge section 223 protrudes from the surface of the movable cover plate 221 and extends directly into the liquid surface of the cooking chamber 12, reducing the transmission distance between the electric arc and the bubbles, improving energy transfer efficiency, and shortening the bubble breaking response time, so that the bubble breaking device 3 can quickly suppress bubble expansion when the liquid in the cooking chamber 12 is boiling violently.

[0089] The design of the discharge section 223 protruding from the surface of the movable cover plate 221 exposes the electrodes of the discharge section 223 to the open space, allowing the electric arc to extend in multiple directions without being restricted by the plane of the movable cover plate 221. This enables multiple discharge sections 223 to work together to form a dense electric arc network, increasing the bubble breaking area and reducing the number of discharge sections 223 required.

[0090] The sealing ring 222 also has a certain protective function. Specifically, since the sealing ring 222 is made of insulating material, it can provide insulation between the pot body 11 and the movable cover plate 221, thereby improving safety.

[0091] According to some embodiments of this utility model, refer to Figure 1 The movable cover plate 221 is provided with multiple mounting holes 2212, and multiple discharge parts 223 are installed into the multiple mounting holes 2212 in a corresponding manner.

[0092] The advantage of the separate installation design of multiple discharge sections 223 and movable cover plate 221 is that it enables modular maintenance and flexible replacement of each discharge section 223. Since each discharge section 223 is fixed through an independent mounting hole 2212, when a single electrode fails due to aging or contamination, it can be directly disassembled and replaced without discarding the entire movable cover plate 221, thus reducing maintenance costs.

[0093] Users can also replace the discharge unit 223 with different power or type according to cooking needs. For example, a higher power discharge unit 223 can be used to boil glue, and a lower power discharge unit 223 can be used to boil milk. When the liquid level is low during cooking, a discharge unit 223 that can protrude to a higher height can be used for bubble breaking. When the liquid level is high during cooking, a discharge unit 223 that can protrude to a lower height can be used for bubble breaking, thus expanding the functional scenarios of the cooking appliance 100.

[0094] According to some embodiments of this utility model, such as Figure 3 As shown, the movable cover plate 221 is a metal cover plate, and the movable cover plate 221 is integrally formed with multiple discharge parts 223.

[0095] The advantages of integrating the discharge unit 223 with the metal cover plate include: improved structural strength and durability, enhanced resistance to deformation and corrosion; the integrated design avoids stress concentration and allows for higher frequency opening and closing operations; better heat conduction; the high thermal conductivity of the metal cover plate allows heat generated by the electric arc to dissipate quickly, preventing localized high temperatures from scorching food; and the metal cover plate also creates a Faraday cage effect, blocking electromagnetic interference from the electric arc from affecting the main control circuit. The integrated design also prevents liquid seepage into seams and corners, improving the hygiene of the food cooking process.

[0096] In some embodiments, the movable cover plate 221 can be formed as a metal conductive component disposed between the arc generating device 31 and the discharge section 223 for transmitting or extending the arc range. The tip of the discharge section 223 discharges to generate an arc. As the area of ​​the metal cover plate increases or the distance between the discharge section 223 and the arc generating device 31 increases, the power of the arc generating device 31 should also increase accordingly. The greater the power and the longer the arc, the easier it is to transfer the arc and energy to the metal cover plate and the discharge section 223 disposed on the metal cover plate.

[0097] In other words, the power of the arc generating device 31 determines the area that the discharge section 223 can cover, which is the bubble breaking area of ​​the bubble breaking device 3. The larger the bubble breaking area, the higher the bubble breaking efficiency and the better the bubble breaking effect.

[0098] To prevent energy loss during the energy transfer process from the arc generating device 31 to the discharge section 223 via the movable cover plate 221, in some embodiments, refer to Figure 1 An insulating plate 4 is provided on the side of the movable cover plate 221 away from the cover body. The insulating plate 4 can prevent energy loss, and the insulating plate 4 has a clearance hole 41 for avoiding the discharge part 223, so as to ensure that the discharge part 223 can extend to the outside of the insulating plate 4 and discharge outward to generate a bubble-breaking arc in the upper part of the cooking cavity 12.

[0099] According to other embodiments of the present invention, or, as... Figure 3 As shown, the movable cover 221 is a metal enclosure plate, and the thickness of the metal enclosure plate is less than 0.6 mm; in order to reduce the loss of energy during the transfer of energy on the metal enclosure plate by reducing the thickness of the movable cover 221 formed as a metal enclosure plate.

[0100] According to some embodiments of the present invention, the movable cover plate 221 is a metal mesh plate. This utilizes the mesh structure to reduce energy loss during energy transfer on the movable cover plate 221.

[0101] According to some embodiments of this utility model, refer to Figure 2 and Figure 4The end of the discharge section 223 facing the cooking cavity 12 has a pointed tip 2231, and the sharper the pointed tip 2231, the better the effect of generating an electric arc.

[0102] The tip 2231 can further expose the electrodes of the discharge section 223 to the open space. The sharper the tip 2231, the wider the arc extension direction and the less restricted it is. This allows multiple discharge sections 223 to work together to form a dense arc network, increasing the bubble breaking area and reducing the number of discharge sections 223 required.

[0103] According to some embodiments of this utility model, the cooking appliance 100 is a rice cooker. When the rice cooker is in the boiling stage and the heating element is controlled to work at high power, the rice cooker controls the bubble-breaking device 3 to work.

[0104] Since the bubble-breaking device 3 of this application is arranged with multiple discharge parts 223 at intervals on the side of the cover assembly facing the cooking cavity 12, they work together to generate a bubble-breaking electric arc on the upper part of the cooking cavity 12, constructing a large-area electric arc network, and performing large-area overflow prevention, the overflow prevention effect of the cooking appliance 100 is improved, and large-area bubble breaking is achieved. Through the highly efficient overflow-breaking bubble breaking effect, it is ensured that the cooking appliance 100 will not overflow under violent and continuous boiling.

[0105] Therefore, when the cooking appliance 100 of this application is a rice cooker, when the rice cooker is in the boiling stage, it is only necessary to control the bubble breaking device 3 to work. The heating element does not need to reduce its operating power. The cooking appliance 100 can continue to control the heating element to maintain a high-power working state. At this time, a large number of bubbles generated by maintaining high-power heating in the boiling stage can be efficiently broken by the bubble breaking device 3 without overflowing. There is no need to sacrifice thermal efficiency to avoid overflowing.

[0106] The continuous and vigorous boiling effect promotes the full absorption of water by the rice grains, accelerates starch gelatinization and Maillard reaction, and makes the food more delicious after cooking.

[0107] Furthermore, by controlling the defoaming device 3 to operate only when the rice cooker is boiling, the energy waste caused by the defoaming device 3 discharging throughout the entire process can be avoided, thus extending the electrode life.

[0108] According to some embodiments of this utility model, the cooking appliance 100 is a pressure cooker. When the pressure cooker's exhaust valve is releasing gas, the pressure cooker controls the bubble-breaking device 3 to operate. Here, the exhaust valve's venting state can refer to continuous venting or intermittent venting.

[0109] During operation, the pressure cooker's exhaust valve remains closed, and the cooking chamber 12 is a sealed space, eliminating the risk of bubbles and liquid overflow. However, during the exhaust process, due to the pressure difference between the inside and outside, a large amount of steam and bubbles will rush to the exhaust port, causing bubbles and liquid to overflow. Therefore, when the exhaust valve opens periodically, such as during the pressure reduction phase, the pressure cooker controls the bubble-breaking device 3 to operate. This device generates an electric arc mesh to prematurely break up the bubbles, preventing both the risk of overflow and the risk of foam clogging the valve port, which could cause a sudden increase in pressure and create a safety hazard. Furthermore, due to the high efficiency of the bubble-breaking device 3, the pressure cooker's operation is unaffected by bubble overflow, eliminating the need to reduce operating power during the periodic opening of the exhaust valve, thus improving cooking efficiency and results.

[0110] The bubble-breaking device 3 is only controlled to work when the pressure cooker is in the venting state, which can avoid the energy waste of the bubble-breaking device 3 discharging throughout the process and extend the electrode life.

[0111] Furthermore, precise bubble breaking can reduce the number of unnecessary pressure releases in a pressure cooker, making the internal pressure more stable, shortening cooking time, and improving cooking results. For example, it can make meat more tender and avoid the loss of broth caused by frequent pressure releases, thus preserving the original flavor of the ingredients.

[0112] In some embodiments, the arc generating device includes a circuit control board, a primary coil, a secondary coil, and a discharge section. The primary coil and the secondary coil are arranged opposite to each other, with the primary coil connected to the circuit control board and the secondary coil connected to the discharge section. In other embodiments, the arc generating device further includes a heat dissipation device and a heat insulation plate. The heat dissipation device is disposed on the circuit control board to dissipate heat from the circuit control board, and the heat insulation plate is disposed between the secondary coil and the discharge section to prevent heat generated by the discharge section from being transferred to the secondary coil.

[0113] A specific embodiment of the cooking utensil 100 is described below with reference to the accompanying drawings.

[0114] like Figures 3-5 As shown, the cooking appliance 100 includes: a cooking body 1, a lid assembly, and a bubble-breaking device 3.

[0115] The cooking body 1 includes a pot body 11, which defines a cooking cavity 12 with an opening 13. Food is cooked in the cooking cavity 12 defined by the pot body 11. The user puts food into the cooking cavity 12 through the opening 13. After the food boils, the boiling bubbles generated also overflow outward through the opening 13 of the cooking cavity 12.

[0116] The lid assembly is movably disposed on the cooking body 1 and is used to open and close the opening 13. When the lid assembly opens the opening 13, the user can put food into the cooking cavity 12 through the opening 13. When the lid assembly closes the opening 13, the lid assembly and the pot body 11 together define a closed cooking cavity 12. The food in the cooking cavity 12 is continuously heated during the cooking process and generates a large number of bubbles. The bubbles will overflow out of the pot body 11 through the opening 13.

[0117] The bubble breaking device 3 includes an arc generating device 31, which can be a Tesla coil or the like, and can generate an electric arc, light energy, heat energy and shock waves.

[0118] An electric arc generating device 31 is provided on the cover assembly and includes multiple discharge parts 223. The multiple discharge parts 223 are spaced apart on the side of the cover assembly facing the cooking cavity 12 to generate a bubble-breaking electric arc in the upper part of the cooking cavity 12. The multiple discharge parts 223 are spaced apart on the side of the cover assembly facing the cooking cavity 12 and work together to generate a bubble-breaking electric arc in the upper part of the cooking cavity 12. They can work together to construct a large-area electric arc network for large-area spill prevention and use the electric arc network to process food.

[0119] By using a large-area electric arc mesh for overflow prevention, the overflow prevention effect of the cooking appliance 100 is improved, achieving large-area bubble breaking. Through the highly efficient overflow prevention and bubble breaking effect, it is ensured that the cooking appliance 100 will not overflow even under intense and continuous boiling. The cooking appliance 100 does not need to reduce its operating power, and the boiling process during cooking can be more intense and continuous, improving the cooking effect and reducing the cooking time.

[0120] The plurality of discharge sections 223 include a first discharge section 32 and a second discharge section 33. The plurality of first discharge sections 32 are located on a first imaginary circle 6, and the plurality of second discharge sections 33 are located on a second imaginary circle 7. The first imaginary circle 6 is located outside the second imaginary circle 7.

[0121] The first discharge section 32, when discharged together, forms an outer arc network, while the second discharge section 33, when discharged together, forms an inner arc network. The second discharge section 33 is used to centrally process the dense bubbles generated in the high-temperature zone at the center of the pot body 11. The arc network formed by the first discharge sections 32 covers the area from the edge to the center of the opening 13 of the pot body 11, breaking the bubbles within this area and forming an outer ring-shaped interception network. The inner and outer discharge sections 223 work together to achieve comprehensive bubble-breaking coverage "from the outside in."

[0122] The steam outlet 2211 is located between the first imaginary circle 6 and the second imaginary circle 7.

[0123] That is, the steam outlet 2211 is located inside the first imaginary circle 6 and outside the second imaginary circle 7. Thus, the airflow generated by the steam discharge can be used to pull the edge bubbles toward the steam outlet 2211. As the bubbles generated at the edge of the pot body 11 rise, they are driven by the steam flow to move toward the steam outlet. No matter which direction the bubbles approach the steam outlet 2211 from, they must pass through at least the arc action range of the first discharge part 32 or the arc action range of the second discharge part 33 corresponding to the first imaginary circle 6.

[0124] The steam outlet 2211 is located between the first imaginary circle 6 and the second imaginary circle 7, which can prolong the time that the bubble stays within the arc's range, ensuring that the bubble has multiple opportunities to be broken down by the arc. For example, a bubble generated at the edge of the pot body 11, which is furthest from the steam outlet 2211, needs to pass through the arc range of the first discharge section 32 once and the arc range of the second discharge section 33 twice before it can reach the steam outlet 2211. Along the way, it must pass through the arc coverage areas of multiple discharge sections 223, which significantly increases the probability of being broken down.

[0125] The centers of the first and second imaginary circles 7 are located at the center of the cover assembly. The area of ​​the first imaginary circle 6 is S1, and the area of ​​the opening 13 is S2, where S2 / 2 ≤ S1 < S2.

[0126] The lid assembly includes a lid body and a lid plate assembly 22. The lid plate assembly 22 is detachably disposed on the side of the lid body facing the cooking cavity 12. The lid plate assembly 22 includes a movable lid plate 221 and a sealing ring 222. The sealing ring 222 surrounds the movable lid plate 221 to ensure the sealing effect between the edge of the movable lid plate 221 and the pot body 11, prevent air bubbles from escaping through the gap between the movable lid plate 221 and the pot body 11, and ensure that steam can only be discharged to the outside through the steam outlet 2211.

[0127] Multiple discharge sections 223 are disposed on a movable cover plate 221, which is a metal enclosed plate and integrally formed with the discharge sections 223. The discharge sections 223 protrude from the surface of the movable cover plate 221 and extend directly into the liquid surface of the cooking chamber 12, reducing the transmission distance between the electric arc and the bubbles, improving energy transfer efficiency, and shortening the bubble-breaking response time, so that the bubble-breaking device 3 can quickly suppress bubble expansion when the liquid in the cooking chamber 12 is boiling violently.

[0128] The thickness of the metal enclosure is less than 0.6 mm; this reduces energy loss during energy transfer within the metal enclosure by decreasing the thickness of the movable cover 221, which is formed as the metal enclosure. The end of the discharge section 223 facing the cooking cavity 12 has a pointed tip 2231, and the sharper the tip 2231, the better the arc generation effect.

[0129] The tip 2231 can further expose the electrodes of the discharge section 223 to the open space. The sharper the tip 2231, the wider the arc extension direction and the less restricted it is. This allows multiple discharge sections 223 to work together to form a dense arc network, increasing the bubble breaking area and reducing the number of discharge sections 223 required.

[0130] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0131] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A cooking appliance characterized by, include: A cooking body, the cooking body including a pot body defining a cooking cavity with an opening; A lid assembly, movably disposed on the cooking body, for opening and closing the opening; A bubble-breaking device, comprising an arc-generating device disposed on the cover assembly and including a plurality of discharge sections, the plurality of discharge sections being spaced apart and arranged on the side of the cover assembly facing the cooking cavity to generate a bubble-breaking arc in the upper part of the cooking cavity.

2. The cooking appliance of claim 1, wherein, The multiple discharge portions are arranged such that: a portion of the discharge portions are located on an imaginary circle, and the remaining discharge portions are located inside the imaginary circle; or, all of the discharge portions are located on the same imaginary circle. Wherein, the area of ​​the imaginary circle is S1, the area of ​​the opening is S2, and S2 / 2 ≤ S1 < S2.

3. The cooking appliance of claim 1, wherein, The multiple discharge portions are arranged such that: a portion of the discharge portions are located on an imaginary circle, and the remaining discharge portions are located inside the imaginary circle; or, all of the discharge portions are located on the same imaginary circle. The cover assembly is provided with a steam outlet, which is located within the imaginary circle.

4. The cooking appliance of claim 3, wherein, The center of the imaginary circle is located at the center of the cover assembly, and the steam outlet is positioned close to the arc of the imaginary circle; Alternatively, the plurality of discharge sections may include a first discharge section and a second discharge section, with the plurality of first discharge sections located on a first imaginary circle and the plurality of second discharge sections located on a second imaginary circle, the first imaginary circle being located outside the second imaginary circle, and the vapor outlet being located between the first imaginary circle and the second imaginary circle.

5. The cooking appliance of claim 3, wherein, The cover assembly includes: The cover body is provided with an exhaust valve, and the exhaust valve defines an exhaust passage; A cover assembly is detachably disposed on the side of the cover body facing the cooking cavity, the steam outlet is disposed on the cover assembly, and the exhaust channel connects the external space of the cover body and the steam outlet.

6. The cooking appliance of claim 1, wherein, The cover assembly includes: Cover the body; A cover assembly, detachably disposed on the side of the cover body facing the cooking cavity, the cover assembly including a movable cover and a sealing ring, the sealing ring surrounding the movable cover; The plurality of discharge sections are disposed on the movable cover plate and protrude from the side surface of the movable cover plate opposite to the cover body.

7. The cooking appliance of claim 6, wherein, The movable cover plate is provided with multiple mounting holes, and the multiple discharge parts are installed into the multiple mounting holes one by one; And / or, the movable cover is a metal cover, and the movable cover is integrally formed with the plurality of discharge parts.

8. The cooking appliance of claim 6, wherein, The movable cover plate is provided with an insulating plate on the side opposite to the cover body, and the insulating plate has a clearance hole for avoiding the discharge part; Alternatively, the movable cover plate is a metal sealing plate, and the thickness of the metal sealing plate is less than 0.6 mm; Alternatively, the movable cover plate may be a metal mesh plate.

9. The cooking appliance of claim 1, wherein, The discharge section has a pointed end facing the cooking cavity.

10. The cooking appliance of any one of claims 1-9, wherein, The cooking appliance is a rice cooker. When the rice cooker is in the boiling stage and the heating element is controlled to work at high power, the rice cooker controls the bubble-breaking device to work. Alternatively, the cooking utensil is a pressure cooker, and the pressure cooker controls the bubble breaking device to work in a state that an exhaust valve of the pressure cooker is exhausted.

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