Oxygen generating components, cooking equipment, and control methods and devices for household appliances

Abstract

This application provides an oxygen-generating component, cooking equipment, and control method and apparatus for household appliances, relating to the field of oxygen-generating equipment technology. The oxygen-generating component includes: a first channel, the first end of which connects the household appliance to the atmospheric environment outside its functional cavity; a second channel, the first end of which outputs oxygen and faces into the functional cavity; an air pump, the air inlet of which is connected to the second end of the first channel; and a gas separation module, used to input gas from outside the functional cavity and separate and output oxygen. The gas separation module includes a first vent and a second vent, the first vent being connected to the air outlet of the air pump, and the second vent being connected to the second end of the second channel. The oxygen-generating component provided by this application has a simple structure and is easy to miniaturize, thus enabling its integration into small household appliances and meeting the need for integrated oxygen-enriched gas preparation modules in small household appliances.

Description

Technical Field

[0001] This application relates to the field of oxygen generation equipment technology, and more specifically, to an oxygen generation component for household appliances, cooking equipment, and control methods and devices thereof. Background Technology

[0002] In related technologies, common oxygen generating equipment is industrial-scale. Existing molecular sieve oxygen generators require at least two molecular sieves to achieve uninterrupted oxygen production, which is costly and bulky, making them unsuitable for use in household appliances. Therefore, when oxygen generation is required in household appliances, an additional independent oxygen generating device or consumable gas cartridge accessories must be installed, resulting in complex and costly installation procedures. Summary of the Invention

[0003] This application aims to address at least one of the technical problems existing in the prior art or related technologies.

[0004] Therefore, the first aspect of this application proposes an oxygen generating component for household appliances.

[0005] The second aspect of this application proposes a cooking device.

[0006] The third aspect of this application proposes a method for controlling a cooking device.

[0007] The fourth aspect of this application proposes a control device for a cooking appliance.

[0008] The fifth aspect of this application proposes a control device for a cooking apparatus.

[0009] The sixth aspect of this application proposes a readable storage medium.

[0010] In view of the above, a first aspect of this application provides an oxygen generating component for a household appliance, comprising: a first channel, the first end of which is used to connect the household appliance to the atmospheric environment outside the functional cavity of the household appliance; a second channel, the first end of which is used to output oxygen and faces into the functional cavity; an air pump, the air inlet of which is connected to the second end of the first channel; and a gas separation module, which is used to input gas outside the functional cavity and separate and output oxygen; the gas separation module includes a first vent and a second vent, the first vent being connected to the air outlet of the air pump, and the second vent being connected to the second end of the second channel.

[0011] In this technical solution, the oxygen generating component is applied to household appliances, featuring small size and low cost. The oxygen generating component includes an air pump and a gas separation module, which can separate different gas components in the air. For example, the gas separation module is a molecular sieve, such as a carbon molecular sieve or a separation-type molecular sieve.

[0012] The household appliance using the above-described oxygen-generating component includes a functional cavity. For example, the household appliance is a cooking appliance, such as an air fryer, and the functional cavity is a cooking cavity.

[0013] The air pump's inlet is connected to the atmospheric environment outside the functional chamber via a first channel, while its outlet is connected to the first vent of the gas separation module. The second vent of the gas separation module is connected to the functional chamber via a second channel. When the air pump is operating, it pumps external air into the gas separation module through the first channel. The gas separation module pressurizes and adsorbs nitrogen from the air, thus obtaining high-purity oxygen. This oxygen is then transported into the cooking chamber through the second channel, increasing the oxygen concentration within the cooking chamber and achieving oxygen-enriched cooking.

[0014] For example, the gas separation module described above is a zeolite molecular sieve.

[0015] The oxygen generation component provided in this application includes only a gas separation module and an air pump. Its structure is simple and easy to miniaturize, so it can be integrated into common household appliances such as air fryers to meet the oxygen-enriched gas requirements of such appliances.

[0016] In addition, the cooking equipment in the above-mentioned technical solution provided in this application may also have the following additional technical features:

[0017] Optionally, in some technical solutions of this application, the oxygen generating component may further include: a third channel, the first end of which is connected to a second vent, and the second end of which is used to connect to the atmospheric environment; and a valve body disposed in the third channel for switching the on / off state of the second end of the third channel connecting to the atmospheric environment.

[0018] In this technical solution, the oxygen generating component also includes a third channel and a valve body. The third channel connects the second vent of the molecular sieve to the external atmospheric environment. For example, the valve body is a solenoid valve. The valve body is located on the third channel. When the valve body is closed, the third channel is cut off. At this time, if the gas pump is operating, the molecular sieve can only release gas through the second channel. Since the diameter of the second channel is smaller than that of the first channel, the molecular sieve is in a state of compressed oxygenation.

[0019] When the valve is opened, the third channel is activated. The molecular sieve connects to the cooking chamber through the second channel and simultaneously to the external atmosphere through the third channel. At this time, high pressure no longer forms inside the molecular sieve, and it is in a state of atmospheric pressure desorption. That is, the molecular sieve releases the adsorbed nitrogen gas, which is then discharged into the external environment through the third channel.

[0020] By switching the opening and closing state of the valve body, the oxygen generating component can intermittently generate oxygen, thereby continuously supplying oxygen into the cooking cavity and achieving oxygen-enriched cooking.

[0021] In some technical solutions of this application, optionally, when the valve body is closed and the third channel is not connected to the atmospheric environment, the gas flow rate of the first channel is greater than the gas flow rate of the second channel; when the valve body is open and the third channel is connected to the atmospheric environment, the gas flow rate of the first channel is less than the gas flow rate of the third channel.

[0022] In this technical solution, gas flow rate refers to the volume of fluid passing through a cross-section per unit time. Under standard conditions, gas volume refers to the volume of gas at a pressure of one standard atmosphere and a temperature of 0°C or 20°C. For example, gas flow rate can generally be calculated using two methods: volumetric flow rate and mass flow rate. Volumetric flow rate refers to the volume of fluid passing through the cross-section per unit time. The formula for calculating gas flow rate without temperature and pressure correction is as follows:

[0023] Q = A × v;

[0024] Where Q is the volumetric flow rate, measured in cubic meters per hour (m³ / h). 3 / h), A is the cross-sectional area, in square meters (m 2 ), where v is the flow velocity, measured in meters per second (m / s).

[0025] Mass flow rate refers to the mass of fluid passing through a cross-section per unit time. The calculation formula is as follows:

[0026] M = ρ × Q;

[0027] Where M is the mass flow rate, measured in kilograms per hour (kg / h), and ρ is the gas density, measured in kilograms per cubic meter (kg / m³). 3 Q is the volumetric flow rate, measured in cubic meters per hour (m³ / h). 3 / h).

[0028] With the valve closed and the third channel not connected to the atmosphere, the gas flow rate in the first channel is greater than that in the second channel. Therefore, when the oxygen generator starts working, the intake volume is larger and the exhaust volume is smaller, which causes the internal pressure of the oxygen generator to increase. When the internal pressure of the oxygen generator increases, nitrogen can be separated from oxygen by pressurizing and adsorbing nitrogen from the air, thereby obtaining high-purity oxygen and delivering it to the functional chamber.

[0029] With the valve body open and the third channel connected to the atmospheric environment, the gas flow rate in the first channel is less than that in the third channel. Therefore, high pressure is no longer formed inside the gas separation module, and the gas separation module is in a normal pressure desorption state. That is, the gas separation module releases the adsorbed nitrogen and discharges the released nitrogen into the external environment through the third channel.

[0030] In some technical solutions of this application, optionally, the first end of the first channel and the second end of the third channel are hollow tubular, and the diameter of the second end of the third channel is greater than or equal to the diameter of the first end of the first channel; and / or, the first end of the second channel and the first end of the third channel are hollow tubular, and the diameter of the first end of the second channel is smaller than the diameter of the first end of the third channel.

[0031] In this technical solution, the first ends of the first channel and the first ends of the third channel form a pipe structure, and the first ends of the second channel and the first ends of the third channel form a conduit structure. The diameter of the second end of the third channel is greater than or equal to the diameter of the first end of the first channel, and the diameter of the first end of the second channel is smaller than the diameter of the first end of the third channel. By reducing the diameter of the oxygen output conduit, the gas separation module is pressurized to allow for pressurized adsorption and separation of oxygen. When the valve is open, high pressure is no longer formed inside the gas separation module, and the gas separation module is in a normal pressure desorption state. That is, the gas separation module releases the adsorbed nitrogen and discharges the released nitrogen into the external environment through the third channel.

[0032] In some technical solutions of this application, optionally, the oxygen generating component performs an oxygen generating operation including a first cycle and a second cycle; during the first cycle, the air pump is controlled to work to pressurize and deliver gas to the gas separation module; during the second cycle, the air pump is controlled to stop working to depressurize the gas separation module.

[0033] In this technical solution, the oxygen generating component generates oxygen according to a first and second cycle, and then delivers the generated oxygen to the cooking cavity. During the first cycle, the air pump pumps air from the external atmosphere into the gas separation module. Because the diameter of the first channel is larger than that of the second channel, before the internal pressure of the gas separation module reaches equilibrium, the amount of air delivered by the gas separation module to the cooking cavity is less than the amount of air pumped into the gas separation module. Therefore, the air pressure inside the gas separation module increases, and the gas separation module is in a state of pressurized nitrogen adsorption. During this time, the oxygen generating component can continuously deliver oxygen to the cooking cavity.

[0034] After the first cycle ends, the second cycle begins, at which point the air pump stops working. Because the pressure inside the gas separation module is higher than the external atmospheric pressure, the gas inside the module escapes, causing the module to depressurize. At this point, the gas separation module is in a normal pressure release state, releasing the adsorbed nitrogen. Since the diameter of the second channel is smaller than that of the first channel, the vast majority of the released nitrogen is discharged into the external atmosphere through the air pump and the first channel. Only a small portion of the nitrogen enters the cooking chamber through the second channel, thus having no significant impact on the oxygen concentration within the cooking chamber.

[0035] By repeating the first and second cycles described above, it is possible to continuously supply oxygen into the cooking cavity.

[0036] In some technical solutions of this application, optionally, the gas separation module includes a molecular sieve, the molecular sieve is filled with N grams, the cycle duration of the first cycle is greater than or equal to 1.5 × N seconds, the cycle duration of the second cycle is greater than or equal to 0.5 × N seconds, and N is a positive integer.

[0037] In this technical solution, exemplarily, the molecular sieve is a zeolite molecular sieve, meaning the molecular sieve is filled with zeolite material. During the first cycle, the molecular sieve is pressurized and adsorbs nitrogen gas. During the second cycle, the molecular sieve is depressurized and releases nitrogen gas. Since the molecular sieve's nitrogen adsorption capacity is related to the filling amount, the cycle length of the first cycle is directly proportional to the filling amount of the molecular sieve.

[0038] Let the molecular sieve filling amount be N grams, meaning the molecular sieve contains N grams of zeolite. Then the period length of the first cycle is greater than or equal to 1.5 × N seconds. Assuming N = 100, the period length of the first cycle is 150 seconds. Assuming N = 20, the period length of the first cycle is 30 seconds.

[0039] In the second cycle, the gas pump stops working, and the molecular sieve is in a passive depressurization state, releasing the adsorbed nitrogen. Since the gas pump inlet is connected to the external atmosphere through the first channel, the pressure inside the molecular sieve gradually decreases and returns to atmospheric pressure after the pump stops working. Because there is no airflow from the pump, the nitrogen is discharged more slowly, allowing the second cycle duration to be controlled at 0.5 × N seconds, effectively removing the adsorbed nitrogen and preparing for the next oxygen production cycle in the first cycle. Assuming N = 100, the second cycle duration is 50 seconds. Assuming N = 20, the second cycle duration is 10 seconds.

[0040] In some technical solutions of this application, optionally, the oxygen generating component performs oxygen generating operation including a first cycle and a second cycle; in the first cycle, the air pump is controlled to work to pressurize and deliver gas into the gas separation module, and the valve body is closed; in the second cycle, the air pump is controlled to work to pressurize and deliver gas into the gas separation module, and the valve body is opened.

[0041] In this technical solution, the oxygen generating component generates oxygen according to a first and second cycle, and delivers the generated oxygen to the cooking cavity. During the first cycle, the air pump pumps air from the external atmosphere into the gas separation module, while the solenoid valve closes. Because the solenoid valve is closed, the third channel is not open, so the gas separation module can only exhaust air into the cooking cavity through the second channel. Since the diameter of the first channel is larger than that of the second channel, before the internal pressure of the gas separation module reaches equilibrium, the amount of air delivered by the gas separation module into the cooking cavity is less than the amount of air pumped into the gas separation module. Therefore, the gas pressure inside the gas separation module increases, and the gas separation module is in a state of pressurized nitrogen adsorption. During this time, the oxygen generating component can continuously deliver oxygen into the cooking cavity.

[0042] During the second cycle, the air pump continues to pump air while the solenoid valve opens. At this time, the third channel is activated, allowing the gas separation module to connect to the external atmosphere. Since the diameter of the third channel is no smaller than that of the first channel, high pressure no longer forms inside the gas separation module, and the module is in a normal pressure release state, releasing the adsorbed nitrogen. Furthermore, because the diameter of the third channel is larger than that of the second channel, the vast majority of the airflow pumped by the air pump passes through the gas separation module and the third channel to be discharged into the external atmosphere; only a very small portion enters the cooking chamber through the second channel. Therefore, it does not significantly affect the oxygen concentration within the cooking chamber.

[0043] By repeating the first and second cycles described above, it is possible to continuously supply oxygen into the cooking cavity.

[0044] In some technical solutions of this application, optionally, the gas separation module includes a molecular sieve, the molecular sieve is filled with N grams, the cycle duration of the first cycle is greater than or equal to 1.5 × N seconds, the cycle duration of the second cycle is greater than or equal to 0.2 × N seconds, and N is a positive integer.

[0045] In this technical solution, exemplarily, the molecular sieve is a zeolite molecular sieve, meaning the molecular sieve is filled with zeolite material. During the first cycle, the molecular sieve is pressurized and adsorbs nitrogen gas. During the second cycle, the molecular sieve is depressurized and releases nitrogen gas. Since the molecular sieve's nitrogen adsorption capacity is related to the filling amount, the cycle length of the first cycle is directly proportional to the filling amount of the molecular sieve.

[0046] Let the molecular sieve filling amount be N grams, meaning the molecular sieve contains N grams of zeolite. Then the period length of the first cycle is greater than or equal to 1.5 × N seconds. Assuming N = 100, the period length of the first cycle is 150 seconds. Assuming N = 20, the period length of the first cycle is 30 seconds.

[0047] In the second cycle, the molecular sieve depressurizes and releases nitrogen. Since the gas pump is still operating and the solenoid valve is open, the gas flow pumped by the pump is discharged into the external atmosphere through the third channel. The flowing air causes the nitrogen to be discharged from the molecular sieve relatively quickly. Therefore, compared to the scheme without a solenoid valve, the cycle length of the second cycle in this scheme can be relatively shorter, specifically set to 0.2 × N seconds, reducing the interval for oxygen generation. Assuming N = 100, the cycle length of the second cycle is 20 seconds. Assuming N = 20, the cycle length of the first cycle is 4 seconds.

[0048] Optionally, in some technical solutions of this application, the second channel is provided with an airflow control device for adjusting the gas flow rate or the size of the flow cross-sectional area of ​​the output oxygen at the first end of the second channel.

[0049] In this technical solution, an airflow control device is installed on the second channel to regulate the gas flow rate of oxygen output from the second channel, or to adjust the cross-sectional area of ​​the second channel. When the oxygen generating component is operating, high pressure can be generated in the gas separation module by actively reducing the gas flow rate of oxygen output from the second channel, or by actively reducing the cross-sectional area of ​​the second channel, thereby achieving oxygen production.

[0050] In some technical solutions of this application, optionally, both the first channel and the second channel are hollow tubular, wherein the diameter of the first channel is L1 and the diameter of the second channel is L2, satisfying: L2≤0.1×L1.

[0051] In this technical solution, both the first and second channels are hollow tubular structures. The diameter of the first channel is much larger than that of the second channel, so that when the air pump is working, before the internal pressure of the molecular sieve reaches equilibrium, the amount of air entering the molecular sieve through the first channel is much greater than the amount of air exiting the molecular sieve through the second channel. This creates a high-pressure environment inside the molecular sieve, allowing it to adsorb nitrogen from the air and produce oxygen.

[0052] For example, if the diameter of the first channel is L1 and the diameter of the second channel is L2, then L2 ≤ 0.1 × L1. For example, L2 ≤ 0.05 × L1.

[0053] In some technical solutions of this application, optionally, both the first channel and the second channel are hollow tubular, with the diameter of the first channel ranging from 6 mm to 11 mm and the diameter of the second channel ranging from 0.05 mm to 0.5 mm.

[0054] In this technical solution, both the first and second channels are hollow tubular structures. The diameter of the second channel is much smaller than that of the first channel. When the gas pump pumps air into the molecular sieve, the amount of air entering the molecular sieve through the first channel is much greater than the amount of air exiting the molecular sieve through the second channel, thus making the internal air pressure of the molecular sieve higher than the external atmospheric pressure. At this time, the molecular sieve is in a high-pressure adsorption state, adsorbing nitrogen from the air to produce oxygen.

[0055] For example, the diameter of the first channel ranges from 6 mm to 11 mm.

[0056] For example, the diameter of the first channel is 8 mm.

[0057] For example, the diameter of the first channel is 9 mm.

[0058] For example, the diameter of the second channel ranges from 0.05 mm to 0.5 mm.

[0059] For example, the diameter of the second channel is 0.1 mm.

[0060] For example, the diameter of the second channel is 0.3 mm.

[0061] In some technical solutions of this application, optionally, the gas separation module includes a molecular sieve with a filling amount greater than or equal to 15g; and / or, the pumping pressure of the gas pump is greater than or equal to 0.2bar.

[0062] In this technical solution, to ensure oxygen production, the molecular sieve filling amount is not less than 15g, and the pumping pressure of the gas pump is not less than 0.2 bar. For example, the molecular sieve filling amount is 20g. For example, the molecular sieve filling amount is 30g. For example, the rated pumping pressure of the gas pump is 0.6 bar. For example, the rated pumping pressure of the gas pump is 0.8 bar.

[0063] A second aspect of this application provides a cooking device, comprising: a body, the body including a cooking cavity; and an oxygen generating component as provided in any of the above technical solutions, the oxygen generating component being disposed on the body, wherein a first end of a first channel is connected to the atmospheric environment outside the cooking cavity, and a first end of a second channel faces into the cooking cavity, the oxygen generating component being used to deliver oxygen into the cooking cavity.

[0064] In this technical solution, the cooking equipment includes, but is not limited to, air fryers, pressure cookers, rice cookers, steamers, multi-functional cookers, food processors, steam-baking equipment, or fermentation equipment. For example, an air fryer is used as the cooking equipment. The cooking equipment includes a cooking cavity for containing food ingredients. Taking an air fryer as an example, the air fryer is also equipped with a heating element and a fan. The fan guides the air circulation, transferring the heat generated by the heating element to the cooking cavity to air-fry the food ingredients inside.

[0065] The cooking equipment also includes an oxygen-generating component. This component connects to the external atmosphere through a first channel and to the cooking chamber through a second channel. For example, the oxygen-generating component is a molecular sieve oxygen-generating component. The second channel has a smaller diameter, while the first channel has a larger diameter. Therefore, when the oxygen-generating component starts working, the intake volume is larger and the exhaust volume is smaller, which increases the internal pressure of the component. Once the internal pressure increases, nitrogen is adsorbed from the air under pressure, separating nitrogen from oxygen to obtain high-purity oxygen, which is then delivered to the cooking chamber.

[0066] For example, taking an air fryer as a cooking appliance, during the air frying process, reducing sugars in the food, such as glucose and fructose, undergo a Maillard reaction with asparagine to generate acrylamide. Acrylamide can react with thiols under oxygen conditions to generate flavor compounds. In this process, the oxygen concentration directly affects the oxidation of acrylamide. When the oxygen concentration is low, acrylamide residue is more likely to occur, and the generation of flavor compounds is also affected. When the oxygen concentration is increased, it can promote the addition reaction of acrylamide, affecting the proportion of acrylamide or flavor compounds generated, thus promoting the generation of flavor compounds and reducing acrylamide residue.

[0067] This application utilizes an oxygen-generating component to continuously supply oxygen into the cooking chamber during the air-frying process of a cooking equipment, thereby increasing the oxygen concentration within the cooking chamber. This reduces the acrylamide content during air-frying, minimizes acrylamide residue, increases the generation of flavor compounds, and improves the cooking effect of the equipment.

[0068] In some technical solutions of this application, optionally, the oxygen generating component includes: an air pump, the air inlet of which is connected to the second end of the first channel; and a molecular sieve, the molecular sieve including a first air inlet and a second air inlet, the first air inlet being connected to the air outlet of the air pump, and the second air inlet being connected to the second end of the second channel.

[0069] In this technical solution, the oxygen-generating component includes an air pump and a molecular sieve. The air pump's inlet is connected to the atmospheric environment outside the cooking device body through a first channel, and the air pump's outlet is connected to the first vent of the molecular sieve. The second vent of the molecular sieve is connected to the cooking chamber through a second channel. When the air pump is operating, it pumps external air into the molecular sieve through the first channel. Because the diameter of the first channel is larger than that of the second channel, the air intake of the molecular sieve is greater than the air exhaust before pressure equilibrium is reached, which increases the internal pressure of the molecular sieve. At this time, the molecular sieve pressurizes and adsorbs nitrogen from the air, thereby obtaining high-purity oxygen. This oxygen is then transported into the cooking chamber through the second channel, thereby increasing the oxygen concentration within the cooking chamber and achieving oxygen-enriched cooking.

[0070] For example, the molecular sieve mentioned above is a zeolite molecular sieve.

[0071] Since the oxygen generation component of this application only includes a molecular sieve and an air pump, its structure is simple and easy to miniaturize. Therefore, it can be integrated into common cooking equipment such as air fryers to meet the oxygen-enriched gas requirements of cooking equipment such as air fryers.

[0072] In some technical solutions of this application, the oxygen generating component may optionally include: a third channel, the first end of which is connected to the second vent, and the second end of which is connected to the atmospheric environment outside the main body; wherein the diameter of the third channel is greater than or equal to the diameter of the first channel; and a solenoid valve, which is located in the third channel and is used to switch the on / off state of the third channel.

[0073] In this technical solution, the oxygen generation component also includes a third channel and a solenoid valve. The third channel connects the second vent of the molecular sieve to the external atmospheric environment. The solenoid valve is located on the third channel. When the solenoid valve is closed, the third channel is cut off. At this time, if the gas pump is working, the molecular sieve can only release gas through the second channel. Since the diameter of the second channel is smaller than that of the first channel, the molecular sieve is in a state of compressed oxygenation.

[0074] When the solenoid valve is opened, the third channel is activated. The molecular sieve connects to the cooking chamber through the second channel and simultaneously connects to the external atmosphere through the third channel. Because the diameter of the third channel is greater than or equal to the diameter of the first channel, high pressure no longer forms inside the molecular sieve, and the molecular sieve is in a state of atmospheric pressure desorption. That is, the molecular sieve releases the adsorbed nitrogen gas and discharges it into the external environment through the third channel.

[0075] By switching the opening and closing state of the solenoid valve, the oxygen generating component can be intermittently generated, thereby continuously supplying oxygen into the cooking cavity and achieving oxygen-enriched cooking.

[0076] In some technical solutions of this application, optionally, the oxygen generating component performs the operation of delivering oxygen to the cooking cavity, including a first cycle and a second cycle; in the first cycle, the air pump operates to pressurize and deliver gas into the molecular sieve; in the second cycle, the air pump stops operating to depressurize the molecular sieve.

[0077] In this technical solution, the oxygen generating component generates oxygen according to a first and second cycle, and then delivers the generated oxygen to the cooking chamber. During the first cycle, the air pump pumps air from the external atmosphere into the molecular sieve. Because the diameter of the first channel is larger than that of the second channel, before the internal pressure of the molecular sieve reaches equilibrium, the amount of air delivered by the molecular sieve into the cooking chamber is less than the amount of air pumped into the molecular sieve. Therefore, the air pressure inside the molecular sieve increases, and the molecular sieve is in a state of pressurized nitrogen adsorption. During this time, the oxygen generating component can continuously deliver oxygen into the cooking chamber.

[0078] After the first cycle ends, the second cycle begins, at which point the air pump stops working. Because the pressure inside the molecular sieve is higher than the external atmospheric pressure, the gas inside the molecular sieve escapes, depressurizing the sieve. At this point, the molecular sieve is in a state of atmospheric pressure release, releasing the adsorbed nitrogen. Since the diameter of the second channel is smaller than that of the first channel, the vast majority of the released nitrogen will be discharged into the external atmosphere through the air pump and the first channel. Only a small portion of the nitrogen will enter the cooking chamber through the second channel, thus having no significant impact on the oxygen concentration within the cooking chamber.

[0079] By repeating the first and second cycles described above, it is possible to continuously supply oxygen into the cooking cavity.

[0080] In some technical solutions of this application, optionally, the molecular sieve filling amount is N grams, the period duration of the first period is greater than or equal to 1.5 × N seconds, and the period duration of the second period is greater than or equal to 0.5 × N seconds.

[0081] In this technical solution, exemplarily, the molecular sieve is a zeolite molecular sieve, meaning the molecular sieve is filled with zeolite material. During the first cycle, the molecular sieve is pressurized and adsorbs nitrogen gas. During the second cycle, the molecular sieve is depressurized and releases nitrogen gas. Since the molecular sieve's nitrogen adsorption capacity is related to the filling amount, the cycle length of the first cycle is directly proportional to the filling amount of the molecular sieve.

[0082] Let the molecular sieve filling amount be N grams, meaning the molecular sieve contains N grams of zeolite. Then the period length of the first cycle is greater than or equal to 1.5 × N seconds. Assuming N = 100, the period length of the first cycle is 150 seconds. Assuming N = 20, the period length of the first cycle is 30 seconds.

[0083] In the second cycle, the gas pump stops working, and the molecular sieve is in a passive depressurization state, releasing the adsorbed nitrogen. Since the gas pump inlet is connected to the external atmosphere through the first channel, the pressure inside the molecular sieve gradually decreases and returns to atmospheric pressure after the pump stops working. Because there is no airflow from the pump, the nitrogen is discharged more slowly, allowing the second cycle duration to be controlled at 0.5 × N seconds, effectively removing the adsorbed nitrogen and preparing for the next oxygen production cycle in the first cycle. Assuming N = 100, the second cycle duration is 50 seconds. Assuming N = 20, the second cycle duration is 10 seconds.

[0084] A third aspect of this application provides a control method for a cooking device, used to control the cooking device provided in any of the above technical solutions. The cooking device includes a cooking chamber and an oxygen generating component. The control method includes: controlling the cooking device to perform a cooking operation, the cooking operation including at least one cooking stage; determining a target cooking stage in the at least one cooking stage; and controlling the oxygen generating component to deliver oxygen into the cooking chamber during the target cooking stage.

[0085] In this technical solution, the cooking equipment includes, but is not limited to, air fryers, baking ovens, steam ovens, or constant temperature boxes. For example, an air fryer is used as the cooking equipment. The cooking equipment includes a cooking cavity for holding food. Taking an air fryer as an example, the air fryer is also equipped with a heating element and a fan. The fan guides the air circulation, transferring the heat generated by the heating element to the cooking cavity to air-fry the food inside.

[0086] The cooking equipment also includes an oxygen generation component, which supplies oxygen to the cooking chamber during the cooking process. During air frying, the food undergoes a Maillard reaction at high temperatures, and reducing sugars and amino acids produce acrylamide in the Strecker degradation pathway. The primary pathway for acrylamide formation is the Maillard reaction between reducing sugars, such as glucose and fructose, and asparagine. Besides the asparagine pathway, acrylamide can also be generated in high-fat systems via the acrolein pathway.

[0087] Acrylamide further oxidizes to form flavor compounds. In the initial stages of food heating, a large amount of moisture evaporates from the ingredients, forming steam. This steam fills the cooking cavity, increasing the pressure inside and causing air to escape. This process carries away some oxygen, reducing the oxygen concentration within the cooking cavity. This reduced oxygen concentration may lead to incomplete acrylamide oxidation, resulting in acrylamide residue.

[0088] To address the aforementioned issues, the technical solution of this application identifies at least one target cooking stage during the cooking operation of the cooking equipment, which may be either a stage where the actual oxygen content in the cooking chamber is low or a stage where the oxygen demand of the cooking ingredients is high.

[0089] When the cooking stage reaches the target cooking stage, the cooking equipment controls the oxygen generation component to supply oxygen into the cooking chamber, thereby increasing the oxygen concentration within the cooking chamber. Compared to solutions that do not supply oxygen, this application significantly increases the oxygen concentration within the cooking chamber by supplying oxygen. Since acrylamide can react with thiols under oxygen conditions to form [a specific product], an increased oxygen concentration can promote the acrylamide addition reaction, affecting the proportion of acrylamide or flavor compounds produced, thus promoting flavor compound formation and reducing acrylamide formation.

[0090] This application achieves a reduction in acrylamide content and residue during air frying by actively supplying oxygen into the cooking cavity during the cooking stage, thereby increasing the oxygen concentration within the cooking cavity and thus enabling healthier cooking.

[0091] In some technical solutions of this application, optionally, the oxygen generating component includes an air pump and a gas separation module. The oxygen generating component performs the operation of delivering oxygen into the cooking cavity, including a first cycle and a second cycle. Controlling the oxygen generating component to deliver oxygen into the cooking cavity includes: in the first cycle, controlling the air pump to work to pressurize and deliver gas into the gas separation module; in the second cycle, controlling the air pump to stop working to depressurize the gas separation module.

[0092] In this technical solution, the oxygen-generating component includes an air pump and a gas separation module. The air pump's inlet is connected to the atmospheric environment outside the cooking device body through a first channel, and the air pump's outlet is connected to the first vent of the gas separation module. The second vent of the gas separation module is connected to the cooking chamber through a second channel. When the air pump is operating, it pumps external air into the gas separation module through the first channel. Because the diameter of the first channel is larger than that of the second channel, the air intake of the gas separation module is greater than the air exhaust before pressure equilibrium is reached, which increases the internal pressure of the gas separation module. At this time, the gas separation module pressurizes and adsorbs nitrogen from the air, thereby obtaining high-purity oxygen.

[0093] Since the oxygen generation component of this application only includes a gas separation module and an air pump, its structure is simple and easy to miniaturize. Therefore, it can be integrated into common cooking equipment such as air fryers to meet the oxygen-enriched gas requirements of cooking equipment such as air fryers.

[0094] The oxygen generating component produces oxygen according to a first and second cycle, and then delivers the produced oxygen to the cooking cavity. During the first cycle, the air pump pumps air from the external atmosphere into the gas separation module. Because the diameter of the first channel is larger than that of the second channel, the amount of air delivered from the gas separation module to the cooking cavity is less than the amount pumped into the gas separation module before the internal pressure reaches equilibrium. Therefore, the pressure inside the gas separation module increases, and the module is in a state of pressurized nitrogen adsorption. During this time, the oxygen generating component can continuously deliver oxygen to the cooking cavity.

[0095] After the first cycle ends, the second cycle begins, at which point the air pump stops working. Because the pressure inside the gas separation module is higher than the external atmospheric pressure, the gas inside the module escapes, causing the module to depressurize. At this point, the gas separation module is in a normal pressure release state, releasing the adsorbed nitrogen. Since the diameter of the second channel is smaller than that of the first channel, the vast majority of the released nitrogen is discharged into the external atmosphere through the air pump and the first channel. Only a small portion of the nitrogen enters the cooking chamber through the second channel, thus having no significant impact on the oxygen concentration within the cooking chamber.

[0096] By repeating the first and second cycles described above, it is possible to continuously supply oxygen into the cooking cavity.

[0097] In some technical solutions of this application, optionally, the oxygen generating component includes an air pump, a gas separation module, and a valve body. The oxygen generating component performs the operation of delivering oxygen into the cooking cavity, including a first cycle and a second cycle. Controlling the oxygen generating component to deliver oxygen into the cooking cavity includes: in the first cycle, controlling the air pump to operate to pressurize and deliver gas into the gas separation module and closing the valve body; in the second cycle, controlling the air pump to operate to pressurize and deliver gas into the gas separation module and opening the valve body.

[0098] In this technical solution, the oxygen-generating component includes an air pump and a gas separation module. The air pump's inlet is connected to the atmospheric environment outside the cooking device body through a first channel, and the air pump's outlet is connected to the first vent of the gas separation module. The second vent of the gas separation module is connected to the cooking chamber through a second channel. Specifically, when the air pump is operating, it pumps external air into the gas separation module through the first channel.

[0099] The oxygen generation assembly also includes a third channel and a valve body. The third channel connects the second vent of the gas separation module to the external atmosphere. The valve body is located on the third channel. When the valve body is closed, the third channel is shut off. At this time, if the air pump is working, the gas separation module can only output gas through the second channel. Because the diameter of the second channel is smaller than that of the first channel, the gas separation module is in a pressurized oxygen state.

[0100] When the valve is open, the third channel is activated. The gas separation module connects to the cooking chamber via the second channel and simultaneously connects to the external atmosphere via the third channel. Since the diameter of the third channel is greater than or equal to that of the first channel, high pressure is no longer generated inside the gas separation module, and the module is in a normal pressure desorption state. That is, the gas separation module releases the adsorbed nitrogen gas and discharges it into the external environment through the third channel. By switching the opening and closing state of the valve, intermittent oxygen production by the oxygen generating component can be achieved, thereby continuously supplying oxygen to the cooking chamber and realizing oxygen-enriched cooking.

[0101] The oxygen generating component produces oxygen according to a first and second cycle, and then delivers the produced oxygen to the cooking cavity. During the first cycle, the air pump pumps air from the external atmosphere into the gas separation module. Because the diameter of the first channel is larger than that of the second channel, the amount of air delivered from the gas separation module to the cooking cavity is less than the amount pumped into the gas separation module before the internal pressure reaches equilibrium. Therefore, the pressure inside the gas separation module increases, and the module is in a state of pressurized nitrogen adsorption. During this time, the oxygen generating component can continuously deliver oxygen to the cooking cavity.

[0102] After the first cycle ends, the second cycle begins, at which point the air pump stops working. Because the pressure inside the gas separation module is higher than the external atmospheric pressure, the gas inside the module escapes, causing the module to depressurize. At this point, the gas separation module is in a normal pressure release state, releasing the adsorbed nitrogen. Since the diameter of the second channel is smaller than that of the first channel, the vast majority of the released nitrogen is discharged into the external atmosphere through the air pump and the first channel. Only a small portion of the nitrogen enters the cooking chamber through the second channel, thus having no significant impact on the oxygen concentration within the cooking chamber.

[0103] By repeating the first and second cycles described above, it is possible to continuously supply oxygen into the cooking cavity.

[0104] In some technical solutions of this application, the cycle duration of the first cycle is positively correlated with the amount of reactants filled in the gas separation module; the cycle duration of the second cycle is shorter than that of the first cycle.

[0105] In this technical solution, exemplarily, the gas separation module is a zeolite molecular sieve, meaning the gas separation module is filled with zeolite material. Specifically, during the first cycle, the gas separation module adsorbs nitrogen under pressure. During the second cycle, the gas separation module releases nitrogen by depressurizing. Since the nitrogen adsorption capacity of the gas separation module is related to the filling amount, the cycle length of the first cycle is directly proportional to the filling amount of the gas separation module.

[0106] For the design without a valve body, the air pump stops operating during the second cycle. At this time, the gas separation module is in a passive depressurization state and releases the adsorbed nitrogen. Since the air pump inlet is connected to the external atmosphere through the first channel, the gas pressure inside the gas separation module gradually decreases and returns to atmospheric pressure after the air pump stops operating. Because there is no airflow from the air pump, the nitrogen discharge rate is slow, allowing the second cycle duration to be controlled at 0.5 × N seconds.

[0107] For example, assuming the gas separation module is filled with N grams of zeolite, the first cycle duration is greater than or equal to 1.5 × N seconds, and the second cycle duration is 0.5 × N seconds. If N = 100, the first cycle duration is 150 seconds, and the second cycle duration is 50 seconds. If N = 20, the first cycle duration is 30 seconds, and the second cycle duration is 10 seconds.

[0108] For the valve-equipped design, during the second cycle, the gas separation module depressurizes and releases nitrogen. Since the gas pump is still operating and the valve is open, the gas flow pumped by the pump is discharged into the external atmosphere through the third channel. The flowing airflow allows for faster nitrogen discharge from the gas separation module. Therefore, compared to the design without a valve, the second cycle duration in this design can be relatively shorter, specifically set to 0.2 × N seconds, reducing the interval for oxygen generation.

[0109] For example, assuming the gas separation module is filled with N grams of zeolite, the cycle length of the first cycle is greater than or equal to 1.5 × N seconds, and the cycle length of the second cycle is 0.2 × N seconds. If N = 100, the cycle length of the first cycle is 150 seconds, and the cycle length of the second cycle is 20 seconds. If N = 20, the cycle length of the first cycle is 30 seconds, and the cycle length of the second cycle is 4 seconds.

[0110] The fourth aspect of this application provides a control device for a cooking device, applied to a cooking device as provided in any of the above technical solutions. The cooking device includes a cooking chamber and an oxygen generating component. The control device includes: a control module for controlling the cooking device to perform a cooking operation, the cooking operation including at least one cooking stage; a determination module for determining a target cooking stage in the at least one cooking stage; and the control module is further configured to control the oxygen generating component to deliver oxygen into the cooking chamber during the target cooking stage.

[0111] In this technical solution, the cooking equipment includes, but is not limited to, air fryers, baking ovens, steam ovens, or constant temperature boxes. For example, an air fryer is used as the cooking equipment. The cooking equipment includes a cooking cavity for holding food. Taking an air fryer as an example, the air fryer is also equipped with a heating element and a fan. The fan guides the air circulation, transferring the heat generated by the heating element to the cooking cavity to air-fry the food inside.

[0112] The cooking equipment also includes an oxygen generation component, which supplies oxygen to the cooking chamber during the cooking process. During air frying, the food undergoes a Maillard reaction at high temperatures, and reducing sugars and amino acids produce acrylamide in the Strecker degradation pathway. The primary pathway for acrylamide formation is the Maillard reaction between reducing sugars, such as glucose and fructose, and asparagine. Besides the asparagine pathway, acrylamide can also be generated in high-fat systems via the acrolein pathway.

[0113] Acrylamide further oxidizes to form flavor compounds. In the initial stages of food heating, a large amount of moisture evaporates from the ingredients, forming steam. This steam fills the cooking cavity, increasing the pressure inside and causing air to escape. This process carries away some oxygen, reducing the oxygen concentration within the cooking cavity. This reduced oxygen concentration may lead to incomplete acrylamide oxidation, resulting in acrylamide residue.

[0114] To address the aforementioned issues, the technical solution of this application identifies at least one target cooking stage during the cooking operation of the cooking equipment, which may be either a stage where the actual oxygen content in the cooking chamber is low or a stage where the oxygen demand of the cooking ingredients is high.

[0115] When the cooking stage reaches the target cooking stage, the cooking equipment controls the oxygen generation component to supply oxygen into the cooking chamber, thereby increasing the oxygen concentration within the cooking chamber. Compared to solutions that do not supply oxygen, this application significantly increases the oxygen concentration within the cooking chamber by supplying oxygen. Since acrylamide can react with thiols under oxygen conditions to form [a specific product], an increased oxygen concentration can promote the acrylamide addition reaction, affecting the proportion of acrylamide or flavor compounds produced, thus promoting flavor compound formation and reducing acrylamide formation.

[0116] This application achieves a reduction in acrylamide content and residue during air frying by actively supplying oxygen into the cooking cavity during the cooking stage, thereby increasing the oxygen concentration within the cooking cavity and thus enabling healthier cooking.

[0117] The fifth aspect of this application provides a control device for a cooking apparatus, comprising: a memory for storing programs or instructions; and a processor for executing programs or instructions to implement the steps of the control method for the cooking apparatus provided in any of the above technical solutions, thus achieving the same technical effect. To avoid repetition, further details are omitted here.

[0118] The sixth aspect of this application provides a readable storage medium having a program or instructions stored thereon. When the program or instructions are executed by a processor, they implement the steps of the control method for the cooking device provided in any of the above technical solutions, thus achieving the same technical effect. To avoid repetition, further details are omitted here. Attached Figure Description

[0119] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0120] Figure 1 The present application shows schematic diagrams of the structure of household appliances according to some embodiments;

[0121] Figure 2A The following are schematic diagrams of the structure of oxygen generating components according to some embodiments of this application;

[0122] Figure 2B The following are schematic diagrams of the structure of oxygen generating components according to some embodiments of this application;

[0123] Figure 3A The following are schematic diagrams of the structure of oxygen generating components according to some embodiments of this application;

[0124] Figure 3B The following are schematic diagrams of the structure of oxygen generating components according to some embodiments of this application;

[0125] Figure 4 The present application shows a schematic diagram of the structure of a cooking apparatus according to some embodiments;

[0126] Figure 5 A flowchart illustrating a control method for a cooking apparatus according to some embodiments of this application is shown;

[0127] Figure 6 Structural block diagrams of the control device of a cooking apparatus according to some embodiments of this application are shown;

[0128] Figure 7 A structural block diagram of the control device of a cooking apparatus according to some embodiments of this application is shown.

[0129] Figure label:

[0130] 100 Home appliances, 1022 Functional chamber, 104 First channel, 106 Second channel, 108 Oxygen generating component, 1082 Air pump, 1084 Gas separation module, 1086 Third channel, 1088 Valve body, 1089 Airflow control device.

[0131] 200 Cooking equipment, 202 Main body, 204 Cooking cavity. Detailed Implementation

[0132] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0133] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0134] The following reference Figures 1 to 7 This application describes oxygen-generating components, cooking appliances, and control methods and apparatuses for household appliances according to some embodiments.

[0135] In some embodiments of this application, an oxygen generating component 108 for a household appliance 100 is provided. Figure 1 The present application shows schematic diagrams of the structure of household appliances according to some embodiments. Figure 2A , Figure 2B , Figure 3A and Figure 3B Schematic diagrams of the structure of oxygen generating components according to some embodiments of this application are shown, such as... Figure 1 , Figure 2A , Figure 2B , Figure 3A and Figure 3B As shown, the oxygen generating assembly 108 includes: a first channel 104, the first end of which is used to connect the appliance 100 to the atmospheric environment outside the functional cavity 1022 of the appliance 100; a second channel 106, the first end of which is used to output oxygen and faces into the functional cavity 1022; an air pump 1082, the air inlet of which is connected to the second end of the first channel 104; and a gas separation module 1084, which is used to input gas outside the functional cavity 1022 and separate and output oxygen; the gas separation module 1084 includes a first vent and a second vent, the first vent being connected to the air outlet of the air pump 1082, and the second vent being connected to the second end of the second channel 106.

[0136] In this embodiment, the oxygen generating component 108 is applied to the household appliance 100, and features small size and low cost. The oxygen generating component 108 includes an air pump 1082 and a gas separation module 1084, which can separate different gas components in the air. Exemplarily, the gas separation module 1084 is a molecular sieve, such as a carbon molecular sieve or a separation-type molecular sieve.

[0137] The household appliance 100 using the oxygen generating component 108 described above includes a functional cavity 1022. For example, the household appliance 100 is a cooking device, such as an air fryer, and the functional cavity 1022 is a cooking cavity.

[0138] Figure 2A , Figure 2B , Figure 3A and Figure 3B The arrows indicate the airflow direction. The air inlet of the air pump 1082 is connected to the atmospheric environment outside the functional cavity 1022 through the first channel 104. The air outlet of the air pump 1082 is connected to the first vent of the gas separation module 1084, and the second vent of the gas separation module 1084 is connected to the functional cavity 1022 through the second channel 106. When the air pump 1082 is working, it sends external air to the gas separation module 1084 through the first channel 104. The gas separation module 1084 pressurizes and adsorbs nitrogen from the air, thereby obtaining high-purity oxygen. This oxygen is then transported into the cooking cavity through the second channel 106, thereby increasing the oxygen concentration in the cooking cavity and achieving oxygen-enriched cooking.

[0139] For example, the gas separation module 1084 described above is a zeolite molecular sieve.

[0140] The oxygen generation component 108 provided in this application includes only a gas separation module 1084 and an air pump 1082. Its structure is simple and easy to miniaturize, so it can be integrated into common household appliances 100 such as air fryers to meet the oxygen-enriched gas requirements of such appliances.

[0141] In some embodiments of this application, the oxygen generating assembly 108 may optionally include: a third channel 1086, the first end of the third channel 1086 being connected to a second vent, and the second end of the third channel 1086 being used to connect to the atmospheric environment; and a valve body 1088, which is disposed in the third channel 1086 and is used to switch the on / off state of the second end of the third channel 1086 being connected to the atmospheric environment.

[0142] In this embodiment, the oxygen generating assembly 108 further includes a third channel 1086 and a valve body 1088. The third channel 1086 connects the second vent of the molecular sieve to the external atmospheric environment. Exemplarily, the valve body 1088 is a solenoid valve. The valve body 1088 is disposed on the third channel 1086. When the valve body 1088 is closed, the third channel 1086 is cut off. At this time, if the gas pump 1082 is in operation, the molecular sieve can only release gas through the second channel 106. Since the diameter of the second channel 106 is smaller than the diameter of the first channel 104, the molecular sieve is in a state of compressed oxygenation.

[0143] When valve 1088 is opened, the third channel 1086 is activated. The molecular sieve connects to the cooking chamber via the second channel 106 and simultaneously connects to the external atmosphere via the third channel 1086. At this time, high pressure is no longer formed inside the molecular sieve, and it is in a state of atmospheric pressure desorption. That is, the molecular sieve releases the adsorbed nitrogen gas and discharges it into the external environment through the third channel 1086.

[0144] By switching the opening and closing state of the valve body 1088, the oxygen generating component 108 can intermittently generate oxygen, thereby continuously supplying oxygen into the cooking cavity and achieving oxygen-enriched cooking.

[0145] In some embodiments of this application, optionally, when the valve body 1088 is closed and the third channel 1086 is not connected to the atmospheric environment, the gas flow rate of the first channel 104 is greater than the gas flow rate of the second channel 106; when the valve body 1088 is open and the third channel 1086 is connected to the atmospheric environment, the gas flow rate of the first channel 104 is less than the gas flow rate of the third channel 1086.

[0146] In this embodiment, gas flow rate refers to the volume of fluid passing through a cross-section per unit time. Under standard conditions, gas volume refers to the volume of gas at a pressure of one standard atmosphere and a temperature of 0°C or 20°C. Exemplarily, gas flow rate can generally be calculated using two methods: volumetric flow rate and mass flow rate. Volumetric flow rate refers to the volume of fluid passing through the cross-section per unit time. The formula for calculating gas flow rate without temperature and pressure correction is as follows:

[0147] Q = A × v;

[0148] Where Q is the volumetric flow rate, measured in cubic meters per hour (m³ / h). 3 / h), A is the cross-sectional area, in square meters (m 2 ), where v is the flow velocity, measured in meters per second (m / s).

[0149] Mass flow rate refers to the mass of fluid passing through a cross-section per unit time. The calculation formula is as follows:

[0150] M = ρ × Q;

[0151] Where M is the mass flow rate, measured in kilograms per hour (kg / h), and ρ is the gas density, measured in kilograms per cubic meter (kg / m³). 3 Q is the volumetric flow rate, measured in cubic meters per hour (m³ / h). 3 / h).

[0152] With valve 1088 closed and the third channel 1086 not connected to the atmosphere, the gas flow rate of the first channel 104 is greater than that of the second channel 106. Therefore, when the oxygen generating assembly 108 starts working, the intake volume is larger and the exhaust volume is smaller, which causes the internal pressure of the oxygen generating assembly 108 to increase. When the internal pressure of the oxygen generating assembly 108 increases, nitrogen and oxygen can be separated by pressurized adsorption of nitrogen from the air, thereby obtaining high-purity oxygen and delivering it to the functional chamber 1022.

[0153] With valve 1088 open and third channel 1086 connected to the atmosphere, the gas flow rate of first channel 104 is less than that of third channel 1086. Therefore, high pressure is no longer formed inside gas separation module 1084, and gas separation module 1084 is in a normal pressure desorption state. That is, gas separation module 1084 releases the adsorbed nitrogen and discharges the released nitrogen into the external environment through third channel 1086.

[0154] In some embodiments of this application, optionally, the first end of the first channel 104 and the second end of the third channel 1086 are hollow tubular, and the diameter of the second end of the third channel 1086 is greater than or equal to the diameter of the first end of the first channel 104; and / or, the first end of the second channel 106 and the first end of the third channel 1086 are hollow tubular, and the diameter of the first end of the second channel 106 is smaller than the diameter of the first end of the third channel 1086.

[0155] In this embodiment, the first end of the first channel 104 and the first end of the third channel 1086 form a pipe structure, and the first end of the second channel 106 and the first end of the third channel 1086 form a conduit structure. The diameter of the second end of the third channel 1086 is greater than or equal to the diameter of the first end of the first channel 104, and the diameter of the first end of the second channel 106 is smaller than the diameter of the first end of the third channel 1086. By reducing the diameter of the oxygen output conduit, the gas separation module 1084 is pressurized to allow for pressurized adsorption and separation of oxygen. When the valve body 1088 is open, high pressure is no longer formed inside the gas separation module 1084, and the gas separation module 1084 is in a normal pressure desorption state. That is, the gas separation module 1084 releases the adsorbed nitrogen and discharges the released nitrogen into the external environment through the third channel 1086.

[0156] In some embodiments of this application, optionally, the oxygen generating component 108 performs an oxygen generating operation including a first cycle and a second cycle; during the first cycle, the air pump 1082 is controlled to operate to pressurize and deliver gas into the gas separation module 1084; during the second cycle, the air pump 1082 is controlled to stop operating to depressurize the gas separation module 1084.

[0157] In this embodiment, the oxygen generating component 108 generates oxygen according to a first cycle and a second cycle, and delivers the generated oxygen to the cooking cavity. During the first cycle, the air pump 1082 pumps air from the external atmosphere into the gas separation module 1084. Because the diameter of the first channel 104 is larger than the diameter of the second channel 106, before the internal pressure of the gas separation module 1084 reaches equilibrium, the amount of air delivered by the gas separation module 1084 to the cooking cavity is less than the amount of air pumped by the air pump 1082 into the gas separation module 1084. Therefore, the gas pressure inside the gas separation module 1084 increases, and the gas separation module 1084 is in a state of pressurized nitrogen adsorption. At this time, the oxygen generating component 108 can continuously deliver oxygen into the cooking cavity.

[0158] After the first cycle ends, the second cycle begins, at which point the air pump 1082 stops working. Because the air pressure inside the gas separation module 1084 is higher than the external atmospheric pressure, the gas inside the gas separation module 1084 will escape, causing the gas separation module 1084 to depressurize. At this time, the gas separation module 1084 is in a normal pressure release state, that is, releasing the adsorbed nitrogen. Furthermore, because the diameter of the second channel 106 is smaller than the diameter of the first channel 104, most of the released nitrogen will be discharged into the external atmosphere through the air pump 1082 and the first channel 104. Only a small portion of the nitrogen will enter the cooking cavity through the second channel 106, thus not significantly affecting the oxygen concentration inside the cooking cavity.

[0159] By repeating the first and second cycles described above, it is possible to continuously supply oxygen into the cooking cavity.

[0160] In some embodiments of this application, optionally, the gas separation module 1084 includes a molecular sieve, the molecular sieve being filled with N grams, the period duration of the first cycle being greater than or equal to 1.5 × N seconds, the period duration of the second cycle being greater than or equal to 0.5 × N seconds, where N is a positive integer.

[0161] In this embodiment, exemplarily, the molecular sieve is a zeolite molecular sieve, meaning the molecular sieve is filled with zeolite material. During the first cycle, the molecular sieve is pressurized and adsorbs nitrogen gas. During the second cycle, the molecular sieve is depressurized and releases nitrogen gas. Since the molecular sieve's nitrogen adsorption capacity is related to the filling amount, the duration of the first cycle is directly proportional to the filling amount of the molecular sieve.

[0162] Let the molecular sieve filling amount be N grams, meaning the molecular sieve contains N grams of zeolite. Then the period length of the first cycle is greater than or equal to 1.5 × N seconds. Assuming N = 100, the period length of the first cycle is 150 seconds. Assuming N = 20, the period length of the first cycle is 30 seconds.

[0163] During the second cycle, pump 1082 stops working, and the molecular sieve is in a passive depressurization state, releasing the adsorbed nitrogen. Since the inlet of pump 1082 is connected to the external atmosphere through the first channel 104, the pressure inside the molecular sieve gradually decreases and returns to atmospheric pressure after pump 1082 stops working. At this time, due to the absence of airflow from pump 1082, the nitrogen discharge rate is slower, allowing the second cycle duration to be controlled at 0.5 × N seconds, effectively discharging the adsorbed nitrogen and preparing for the next oxygen production cycle. Assuming N = 100, the second cycle duration is 50 seconds. Assuming N = 20, the second cycle duration is 10 seconds.

[0164] In some embodiments of this application, optionally, the oxygen generating component 108 performs an oxygen generating operation including a first cycle and a second cycle; in the first cycle, the air pump 1082 is controlled to operate to pressurize and deliver gas into the gas separation module 1084, and the valve body 1088 is closed; in the second cycle, the air pump 1082 is controlled to operate to pressurize and deliver gas into the gas separation module 1084, and the valve body 1088 is opened.

[0165] In this embodiment, the oxygen generating component 108 generates oxygen according to a first cycle and a second cycle, and delivers the generated oxygen to the cooking cavity. During the first cycle, the air pump 1082 pumps air from the external atmosphere into the gas separation module 1084, while the solenoid valve closes. Because the solenoid valve is closed, the third channel 1086 is not open, so the gas separation module 1084 can only exhaust air into the cooking cavity through the second channel 106. Since the diameter of the first channel 104 is larger than that of the second channel 106, before the internal pressure of the gas separation module 1084 reaches equilibrium, the amount of air delivered into the cooking cavity by the gas separation module 1084 is less than the amount of air pumped into the gas separation module 1084 by the air pump 1082. Therefore, the gas pressure inside the gas separation module 1084 increases, and the gas separation module 1084 is in a state of pressurized nitrogen adsorption. At this time, the oxygen generating component 108 can continuously deliver oxygen into the cooking cavity.

[0166] During the second cycle, the air pump 1082 continuously pumps air while the solenoid valve opens. At this time, the third channel 1086 is open, allowing the gas separation module 1084 to connect to the external atmosphere. Since the diameter of the third channel 1086 is not less than that of the first channel 104, high pressure no longer forms inside the gas separation module 1084, and it is in a normal pressure release state, releasing the adsorbed nitrogen. Furthermore, because the diameter of the third channel 1086 is larger than that of the second channel 106, the vast majority of the airflow pumped by the air pump 1082 passes through the gas separation module 1084 and the third channel 1086 and is discharged to the external atmosphere. Only a very small portion enters the cooking cavity through the second channel 106, thus not significantly affecting the oxygen concentration within the cooking cavity.

[0167] By repeating the first and second cycles described above, it is possible to continuously supply oxygen into the cooking cavity.

[0168] In some embodiments of this application, optionally, the gas separation module 1084 includes a molecular sieve, the molecular sieve being filled with N grams, the period duration of the first cycle being greater than or equal to 1.5 × N seconds, and the period duration of the second cycle being greater than or equal to 0.2 × N seconds, where N is a positive integer.

[0169] In this embodiment, exemplarily, the molecular sieve is a zeolite molecular sieve, meaning the molecular sieve is filled with zeolite material. During the first cycle, the molecular sieve is pressurized and adsorbs nitrogen gas. During the second cycle, the molecular sieve is depressurized and releases nitrogen gas. Since the molecular sieve's nitrogen adsorption capacity is related to the filling amount, the duration of the first cycle is directly proportional to the filling amount of the molecular sieve.

[0170] Let the molecular sieve filling amount be N grams, meaning the molecular sieve contains N grams of zeolite. Then the period length of the first cycle is greater than or equal to 1.5 × N seconds. Assuming N = 100, the period length of the first cycle is 150 seconds. Assuming N = 20, the period length of the first cycle is 30 seconds.

[0171] During the second cycle, the molecular sieve depressurizes and releases nitrogen. Since pump 1082 is still operational and the solenoid valve is open, the gas flow pumped by pump 1082 is discharged into the external atmosphere through the third channel 1086. The flowing airflow allows for faster nitrogen discharge from the molecular sieve. Therefore, compared to a scheme without a solenoid valve, the second cycle duration in this scheme can be relatively shorter, specifically set to 0.2 × N seconds, reducing the interval for oxygen generation. Assuming N = 100, the second cycle duration is 20 seconds. Assuming N = 20, the first cycle duration is 4 seconds.

[0172] In some embodiments of this application, optionally, the second channel 106 is provided with an airflow control device 1089 for adjusting the gas flow rate or the size of the flow cross-sectional area of ​​the output oxygen at the first end of the second channel 106.

[0173] In this embodiment, an airflow control device 1089 is provided on the second channel 106 to adjust the gas flow rate of oxygen output from the second channel 106 or to adjust the cross-sectional area of ​​the second channel 106. When the oxygen generating assembly 108 is working, high pressure can be formed in the gas separation module 1084 by actively reducing the gas flow rate of oxygen output from the second channel 106 or by actively reducing the cross-sectional area of ​​the second channel 106, thereby achieving oxygen production.

[0174] In some embodiments of this application, optionally, the first channel 104 and the second channel 106 are both hollow tubular, wherein the diameter of the first channel 104 is L1 and the diameter of the second channel 106 is L2, satisfying: L2≤0.1×L1.

[0175] In this embodiment, both the first channel 104 and the second channel 106 are hollow tubular structures. The diameter of the first channel 104 is much larger than that of the second channel 106, so that when the air pump 1082 is working, before the internal pressure of the molecular sieve reaches equilibrium, the amount of air entering the molecular sieve through the first channel 104 is much greater than the amount of air exiting the molecular sieve through the second channel 106. This creates a high-pressure environment inside the molecular sieve, allowing it to adsorb nitrogen from the air and produce oxygen.

[0176] For example, if the diameter of the first channel 104 is L1 and the diameter of the second channel 106 is L2, then L2 ≤ 0.1 × L1. For example, L2 ≤ 0.05 × L1.

[0177] In some embodiments of this application, optionally, the first channel 104 and the second channel 106 are both hollow tubular, with the diameter of the first channel 104 ranging from 6 mm to 11 mm and the diameter of the second channel 106 ranging from 0.05 mm to 0.5 mm.

[0178] In this embodiment, both the first channel 104 and the second channel 106 are hollow tubular structures. The diameter of the second channel 106 is much smaller than the diameter of the first channel 104. When the air pump 1082 pumps air into the molecular sieve, the amount of air entering the molecular sieve through the first channel 104 is much greater than the amount of air exiting the molecular sieve through the second channel 106, thus making the internal air pressure of the molecular sieve higher than the external atmospheric pressure. At this time, the molecular sieve is in a high-pressure adsorption state, adsorbing nitrogen from the air to produce oxygen.

[0179] For example, the diameter of the first channel 104 ranges from 6 mm to 11 mm.

[0180] For example, the diameter of the first channel 104 is 8 mm.

[0181] For example, the diameter of the first channel 104 is 9 mm.

[0182] For example, the diameter of the second channel 106 ranges from 0.05 mm to 0.5 mm.

[0183] For example, the diameter of the second channel 106 is 0.1 mm.

[0184] For example, the diameter of the second channel 106 is 0.3 mm.

[0185] In some embodiments of this application, optionally, the gas separation module 1084 includes a molecular sieve with a filling amount greater than or equal to 15g; and / or, the pumping pressure of the gas pump 1082 is greater than or equal to 0.2bar.

[0186] In this embodiment, to ensure oxygen production, the molecular sieve filling amount is not less than 15g, and the pumping pressure of the gas pump 1082 is not less than 0.2 bar. Exemplarily, the molecular sieve filling amount is 20g. Exemplarily, the molecular sieve filling amount is 30g. Exemplarily, the rated pumping pressure of the gas pump 1082 is 0.6 bar. Exemplarily, the rated pumping pressure of the gas pump 1082 is 0.8 bar.

[0187] In some embodiments of this application, a cooking device is provided. Figure 4 The following are schematic diagrams illustrating the structure of a cooking apparatus according to some embodiments of this application, such as... Figure 4 As shown, the cooking device 200 includes: a body 202, the body 202 including a cooking cavity 204; and an oxygen generating component 108 as provided in any of the above technical solutions, the oxygen generating component 108 being disposed in the body 202, wherein the first end of the first channel 104 is connected to the atmospheric environment outside the cooking cavity 204, the first end of the second channel 106 is facing into the cooking cavity 204, and the oxygen generating component 108 is used to deliver oxygen into the cooking cavity 204.

[0188] In this embodiment, the cooking device 200 includes, but is not limited to, an air fryer, an oven, a steam oven, or a constant temperature chamber. Exemplarily, the cooking device 200 is an air fryer. The cooking device 200 includes a cooking cavity 204 for containing food ingredients. Taking an air fryer as an example, the air fryer is also equipped with a heating element and a fan. The fan guides the air circulation, transferring the heat generated by the heating element to the cooking cavity 204 to air-fry the food ingredients within the cooking cavity 204.

[0189] The cooking device 200 is also equipped with an oxygen generating component 108. The oxygen generating component 108 is connected to the atmospheric environment outside the main body 202 of the cooking device 200 via a first channel 104 and to the cooking chamber 204 of the cooking device 200 via a second channel 106. For example, the oxygen generating component 108 is a molecular sieve oxygen generating component 108. The second channel 106 has a smaller diameter, while the first channel 104 has a larger diameter. Therefore, when the oxygen generating component 108 starts working, the intake volume is larger and the exhaust volume is smaller, which causes the internal pressure of the oxygen generating component 108 to increase. When the internal pressure of the oxygen generating component 108 increases, nitrogen can be separated from oxygen by pressurized adsorption of nitrogen from the air, thereby obtaining high-purity oxygen and delivering it into the cooking chamber 204.

[0190] For example, taking an air fryer as the cooking device 200, during the air frying process, reducing sugars, represented by glucose and fructose, in the food undergo a Maillard reaction with asparagine to generate acrylamide. Acrylamide can react with thiols under oxygen conditions to generate flavor compounds. In this process, the oxygen concentration directly affects the oxidation process of acrylamide. When the oxygen concentration is low, acrylamide residue is more likely to occur, and the generation of flavor compounds is also affected. When the oxygen concentration is increased, it can promote the acrylamide addition reaction, affecting the proportion of acrylamide or flavor compounds generated, thus promoting the generation of flavor compounds and reducing acrylamide residue.

[0191] In this application, during the air frying operation of the cooking equipment 200, oxygen is continuously supplied to the cooking chamber 204 through the oxygen generating component 108, thereby increasing the oxygen concentration in the cooking chamber 204, reducing the content of acrylamide during air frying, reducing acrylamide residue, increasing the generation of flavor substances, and improving the cooking effect of the cooking equipment 200.

[0192] In some embodiments of this application, a method for controlling a cooking device is provided, for controlling a cooking device as provided in any of the above embodiments, the cooking device including a cooking chamber and an oxygen generation component. Figure 5 A flowchart illustrating a control method for a cooking apparatus according to some embodiments of this application is shown, such as... Figure 5 As shown, the control methods include:

[0193] Step 502: Control the cooking equipment to perform a cooking operation, which includes at least one cooking stage;

[0194] Step 504: Determine the target cooking stage in at least one cooking stage;

[0195] Step 506: During the target cooking stage, control the oxygen generation component to deliver oxygen into the cooking chamber.

[0196] In this embodiment, the cooking equipment includes, but is not limited to, an air fryer, a baking oven, a steam oven, or a constant temperature chamber. For example, the cooking equipment is an air fryer. The cooking equipment includes a cooking cavity for containing food ingredients. Taking an air fryer as an example, the air fryer is also equipped with a heating element and a fan. The fan guides the air circulation, transferring the heat generated by the heating element to the cooking cavity to air-fry the food ingredients inside.

[0197] The cooking equipment also includes an oxygen generation component, which supplies oxygen to the cooking chamber during the cooking process. During air frying, the food undergoes a Maillard reaction at high temperatures, and reducing sugars and amino acids produce acrylamide in the Strecker degradation pathway. The primary pathway for acrylamide formation is the Maillard reaction between reducing sugars, such as glucose and fructose, and asparagine. Besides the asparagine pathway, acrylamide can also be generated in high-fat systems via the acrolein pathway.

[0198] Acrylamide further oxidizes to form flavor compounds. In the initial stages of food heating, a large amount of moisture evaporates from the ingredients, forming steam. This steam fills the cooking cavity, increasing the pressure inside and causing air to escape. This process carries away some oxygen, reducing the oxygen concentration within the cooking cavity. This reduced oxygen concentration may lead to incomplete acrylamide oxidation, resulting in acrylamide residue.

[0199] To address the aforementioned issues, in this application embodiment, when the cooking device performs a cooking operation, at least one target cooking stage is determined among one or more cooking stages of the cooking operation. The target cooking stage can be a stage where the actual oxygen content in the cooking chamber is low, or a stage where the oxygen demand of the cooking ingredients is high.

[0200] When the cooking stage reaches the target cooking stage, the cooking equipment controls the oxygen generation component to supply oxygen into the cooking chamber, thereby increasing the oxygen concentration within the cooking chamber. Compared to solutions that do not supply oxygen, this application significantly increases the oxygen concentration within the cooking chamber by supplying oxygen. Since acrylamide can react with thiols under oxygen conditions to form [a specific product], an increased oxygen concentration can promote the acrylamide addition reaction, affecting the proportion of acrylamide or flavor compounds produced, thus promoting flavor compound formation and reducing acrylamide formation.

[0201] This application achieves a reduction in acrylamide content and residue during air frying by actively supplying oxygen into the cooking cavity during the cooking stage, thereby increasing the oxygen concentration within the cooking cavity and thus enabling healthier cooking.

[0202] Optionally, in some embodiments of this application, the oxygen generating component includes an air pump and a gas separation module. The oxygen generating component performs the operation of delivering oxygen into the cooking cavity, including a first cycle and a second cycle. Controlling the oxygen generating component to deliver oxygen into the cooking cavity includes: during the first cycle, controlling the air pump to operate to pressurize and deliver gas into the gas separation module; during the second cycle, controlling the air pump to stop operating to depressurize the gas separation module.

[0203] In this embodiment, the oxygen generation component includes an air pump and a gas separation module. The air pump's inlet is connected to the atmospheric environment outside the cooking device body through a first channel, and the air pump's outlet is connected to the first vent of the gas separation module. The second vent of the gas separation module is connected to the cooking chamber through a second channel. When the air pump is operating, it pumps external air into the gas separation module through the first channel. Because the diameter of the first channel is larger than the diameter of the second channel, the air intake of the gas separation module is greater than the air exhaust before pressure equilibrium is reached, which increases the internal pressure of the gas separation module. At this time, the gas separation module pressurizes and adsorbs nitrogen from the air, thereby obtaining high-purity oxygen.

[0204] Since the oxygen generation component of this application only includes a gas separation module and an air pump, its structure is simple and easy to miniaturize. Therefore, it can be integrated into common cooking equipment such as air fryers to meet the oxygen-enriched gas requirements of cooking equipment such as air fryers.

[0205] The oxygen generating component produces oxygen according to a first and second cycle, and then delivers the produced oxygen to the cooking cavity. During the first cycle, the air pump pumps air from the external atmosphere into the gas separation module. Because the diameter of the first channel is larger than that of the second channel, the amount of air delivered from the gas separation module to the cooking cavity is less than the amount pumped into the gas separation module before the internal pressure reaches equilibrium. Therefore, the pressure inside the gas separation module increases, and the module is in a state of pressurized nitrogen adsorption. During this time, the oxygen generating component can continuously deliver oxygen to the cooking cavity.

[0206] After the first cycle ends, the second cycle begins, at which point the air pump stops working. Because the pressure inside the gas separation module is higher than the external atmospheric pressure, the gas inside the module escapes, causing the module to depressurize. At this point, the gas separation module is in a normal pressure release state, releasing the adsorbed nitrogen. Since the diameter of the second channel is smaller than that of the first channel, the vast majority of the released nitrogen is discharged into the external atmosphere through the air pump and the first channel. Only a small portion of the nitrogen enters the cooking chamber through the second channel, thus having no significant impact on the oxygen concentration within the cooking chamber.

[0207] By repeating the first and second cycles described above, it is possible to continuously supply oxygen into the cooking cavity.

[0208] In some embodiments of this application, optionally, the oxygen generating component includes an air pump, a gas separation module, and a valve body. The oxygen generating component performs the operation of delivering oxygen into the cooking cavity, including a first cycle and a second cycle. Controlling the oxygen generating component to deliver oxygen into the cooking cavity includes: in the first cycle, controlling the air pump to operate to pressurize and deliver gas into the gas separation module and closing the valve body; in the second cycle, controlling the air pump to operate to pressurize and deliver gas into the gas separation module and opening the valve body.

[0209] In this embodiment, the oxygen-generating component includes an air pump and a gas separation module. The air pump's inlet is connected to the atmospheric environment outside the cooking device body through a first channel, and the air pump's outlet is connected to the first vent of the gas separation module. The second vent of the gas separation module is connected to the cooking chamber through a second channel. When the air pump is operating, it pumps external air into the gas separation module through the first channel.

[0210] The oxygen generation assembly also includes a third channel and a valve body. The third channel connects the second vent of the gas separation module to the external atmosphere. The valve body is located on the third channel. When the valve body is closed, the third channel is shut off. At this time, if the air pump is working, the gas separation module can only output gas through the second channel. Because the diameter of the second channel is smaller than that of the first channel, the gas separation module is in a pressurized oxygen state.

[0211] When the valve is open, the third channel is activated. The gas separation module connects to the cooking chamber via the second channel and simultaneously connects to the external atmosphere via the third channel. Since the diameter of the third channel is greater than or equal to that of the first channel, high pressure is no longer generated inside the gas separation module, and the module is in a normal pressure desorption state. That is, the gas separation module releases the adsorbed nitrogen gas and discharges it into the external environment through the third channel. By switching the opening and closing state of the valve, intermittent oxygen production by the oxygen generating component can be achieved, thereby continuously supplying oxygen to the cooking chamber and realizing oxygen-enriched cooking.

[0212] The oxygen generating component produces oxygen according to a first and second cycle, and then delivers the produced oxygen to the cooking cavity. During the first cycle, the air pump pumps air from the external atmosphere into the gas separation module. Because the diameter of the first channel is larger than that of the second channel, the amount of air delivered from the gas separation module to the cooking cavity is less than the amount pumped into the gas separation module before the internal pressure reaches equilibrium. Therefore, the pressure inside the gas separation module increases, and the module is in a state of pressurized nitrogen adsorption. During this time, the oxygen generating component can continuously deliver oxygen to the cooking cavity.

[0213] After the first cycle ends, the second cycle begins, at which point the air pump stops working. Because the pressure inside the gas separation module is higher than the external atmospheric pressure, the gas inside the module escapes, causing the module to depressurize. At this point, the gas separation module is in a normal pressure release state, releasing the adsorbed nitrogen. Since the diameter of the second channel is smaller than that of the first channel, the vast majority of the released nitrogen is discharged into the external atmosphere through the air pump and the first channel. Only a small portion of the nitrogen enters the cooking chamber through the second channel, thus having no significant impact on the oxygen concentration within the cooking chamber.

[0214] By repeating the first and second cycles described above, it is possible to continuously supply oxygen into the cooking cavity.

[0215] In some embodiments of this application, the duration of the first cycle is positively correlated with the amount of reactants filling the gas separation module; the duration of the second cycle is shorter than the duration of the first cycle.

[0216] In this embodiment, exemplarily, the gas separation module is a zeolite molecular sieve, meaning the gas separation module is filled with zeolite material. During the first cycle, the gas separation module is pressurized and adsorbs nitrogen. During the second cycle, the gas separation module depressurizes and releases nitrogen. Since the nitrogen adsorption capacity of the gas separation module is related to the filling amount, the cycle length of the first cycle is directly proportional to the filling amount of the gas separation module.

[0217] For the design without a valve body, the air pump stops operating during the second cycle. At this time, the gas separation module is in a passive depressurization state and releases the adsorbed nitrogen. Since the air pump inlet is connected to the external atmosphere through the first channel, the gas pressure inside the gas separation module gradually decreases and returns to atmospheric pressure after the air pump stops operating. Because there is no airflow from the air pump, the nitrogen discharge rate is slow, allowing the second cycle duration to be controlled at 0.5 × N seconds.

[0218] For example, assuming the gas separation module is filled with N grams of zeolite, the first cycle duration is greater than or equal to 1.5 × N seconds, and the second cycle duration is 0.5 × N seconds. If N = 100, the first cycle duration is 150 seconds, and the second cycle duration is 50 seconds. If N = 20, the first cycle duration is 30 seconds, and the second cycle duration is 10 seconds.

[0219] For the valve-equipped design, during the second cycle, the gas separation module depressurizes and releases nitrogen. Since the gas pump is still operating and the valve is open, the gas flow pumped by the pump is discharged into the external atmosphere through the third channel. The flowing airflow allows for faster nitrogen discharge from the gas separation module. Therefore, compared to the design without a valve, the second cycle duration in this design can be relatively shorter, specifically set to 0.2 × N seconds, reducing the interval for oxygen generation.

[0220] For example, assuming the gas separation module is filled with N grams of zeolite, the cycle length of the first cycle is greater than or equal to 1.5 × N seconds, and the cycle length of the second cycle is 0.2 × N seconds. If N = 100, the cycle length of the first cycle is 150 seconds, and the cycle length of the second cycle is 20 seconds. If N = 20, the cycle length of the first cycle is 30 seconds, and the cycle length of the second cycle is 4 seconds.

[0221] In some embodiments of this application, a control device for a cooking apparatus is provided, applied to the cooking apparatus provided in any of the above embodiments, the cooking apparatus including a cooking chamber and an oxygen generation component. Figure 6 Structural block diagrams of the control device of a cooking apparatus according to some embodiments of this application are shown, such as... Figure 6 As shown, the control device 600 includes: a control module 602 for controlling the cooking equipment to perform a cooking operation, the cooking operation including at least one cooking stage; a determination module 604 for determining a target cooking stage in the at least one cooking stage; the control module 602 is also used to control the oxygen generation component to deliver oxygen into the cooking chamber during the target cooking stage.

[0222] In this embodiment, the cooking equipment includes, but is not limited to, an air fryer, a baking oven, a steam oven, or a constant temperature chamber. For example, the cooking equipment is an air fryer. The cooking equipment includes a cooking cavity for containing food ingredients. Taking an air fryer as an example, the air fryer is also equipped with a heating element and a fan. The fan guides the air circulation, transferring the heat generated by the heating element to the cooking cavity to air-fry the food ingredients inside.

[0223] The cooking equipment also includes an oxygen generation component, which supplies oxygen to the cooking chamber during the cooking process. During air frying, the food undergoes a Maillard reaction at high temperatures, and reducing sugars and amino acids produce acrylamide in the Strecker degradation pathway. The primary pathway for acrylamide formation is the Maillard reaction between reducing sugars, such as glucose and fructose, and asparagine. Besides the asparagine pathway, acrylamide can also be generated in high-fat systems via the acrolein pathway.

[0224] Acrylamide further oxidizes to form flavor compounds. In the initial stages of food heating, a large amount of moisture evaporates from the ingredients, forming steam. This steam fills the cooking cavity, increasing the pressure inside and causing air to escape. This process carries away some oxygen, reducing the oxygen concentration within the cooking cavity. This reduced oxygen concentration may lead to incomplete acrylamide oxidation, resulting in acrylamide residue.

[0225] To address the aforementioned issues, in this application embodiment, when the cooking device performs a cooking operation, at least one target cooking stage is determined among one or more cooking stages of the cooking operation. The target cooking stage can be a stage where the actual oxygen content in the cooking chamber is low, or a stage where the oxygen demand of the cooking ingredients is high.

[0226] When the cooking stage reaches the target cooking stage, the cooking equipment controls the oxygen generation component to supply oxygen into the cooking chamber, thereby increasing the oxygen concentration within the cooking chamber. Compared to solutions that do not supply oxygen, this application significantly increases the oxygen concentration within the cooking chamber by supplying oxygen. Since acrylamide can react with thiols under oxygen conditions to form [a specific product], an increased oxygen concentration can promote the acrylamide addition reaction, affecting the proportion of acrylamide or flavor compounds produced, thus promoting flavor compound formation and reducing acrylamide formation.

[0227] This application achieves a reduction in acrylamide content and residue during air frying by actively supplying oxygen into the cooking cavity during the cooking stage, thereby increasing the oxygen concentration within the cooking cavity and thus enabling healthier cooking.

[0228] In some embodiments of this application, a control device for a cooking apparatus is provided. Figure 7 Structural block diagrams of the control device of a cooking apparatus according to some embodiments of this application are shown, such as... Figure 7 As shown, the control device 700 includes: a memory 702 for storing programs or instructions; and a processor 704 for executing programs or instructions to implement the steps of the control method for the cooking device provided in any of the above embodiments, thus achieving the same technical effect. To avoid repetition, it will not be described again here.

[0229] In some embodiments of this application, a readable storage medium is provided on which a program or instructions are stored. When the program or instructions are executed by a processor, they implement the steps of the control method of the cooking device provided in any of the above embodiments, and thus can achieve the same technical effect. To avoid repetition, they will not be described again here.

[0230] The methods can be implemented in various ways depending on specific features and / or example applications. For example, these methods can be implemented by a combination of hardware, firmware, and / or software. For instance, in a hardware implementation, the processor can be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, electronic devices, other device units for performing the functions described above, and / or combinations thereof.

[0231] A computer-readable storage medium can be a tangible device that holds and stores instructions for use by an instruction execution device. A computer-readable storage medium can be an electronic storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing, but is not limited thereto. A non-exhaustive list of more specific examples of computer-readable storage media includes: portable computer floppy disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or flash memory, static random-access memory (SRAM), portable optical disc read-only memory (CD-ROM), digital video disc (DVD), memory cards, floppy disks, encoding mechanical devices (e.g., punched cards or grooves with raised structures for recording instructions), and any suitable combination of the foregoing. The computer-readable storage medium used herein should not be construed as the transmission signal itself, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media, or electrical signals transmitted through wires.

[0232] In the description of this application, the term "multiple" refers to two or more. Unless otherwise expressly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0233] In the description of this application, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this application, 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.

[0234] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An oxygen generating component for household appliances, characterized in that, include: The first channel, the first end of the first channel is used to connect the home appliance to the atmospheric environment outside the functional cavity of the home appliance; The second channel, the first end of which is used to output oxygen and faces into the functional chamber; An air pump, wherein the air inlet of the air pump is connected to the second end of the first channel; A gas separation module is used to input gas outside the functional chamber and separate and output oxygen; the gas separation module includes a first vent and a second vent, the first vent is connected to the outlet of the gas pump, and the second vent is connected to the second end of the second channel.

2. The oxygen generating component according to claim 1, characterized in that, Also includes: The third channel has a first end connected to the second vent, and a second end connected to the atmospheric environment. A valve body is provided in the third channel and is used to switch the on / off state of the second end of the third channel connecting to the atmospheric environment.

3. The oxygen generating component according to claim 2, characterized in that, When the valve body is closed and the third channel is not connected to the atmospheric environment, the gas flow rate of the first channel is greater than the gas flow rate of the second channel; When the valve body is open and the third channel is connected to the atmospheric environment, the gas flow rate of the first channel is less than the gas flow rate of the third channel.

4. The oxygen generating component according to claim 2, characterized in that, The first end of the first channel and the second end of the third channel are hollow tubular, wherein the diameter of the second end of the third channel is greater than or equal to the diameter of the first end of the first channel; and / or, The first end of the second channel and the first end of the third channel are hollow tubular, and the diameter of the first end of the second channel is smaller than the diameter of the first end of the third channel.

5. The oxygen generating component according to claim 1, characterized in that, The oxygen generating component performs oxygen generating operations including a first cycle and a second cycle. During the first cycle, the air pump is controlled to operate to pressurize and deliver gas into the gas separation module; During the second cycle, the air pump is controlled to stop working so that the gas separation module can be depressurized.

6. The oxygen generating component according to claim 5, characterized in that, The gas separation module includes a molecular sieve with a filling amount of N grams. The duration of the first cycle is greater than or equal to 1.5 × N seconds, and the duration of the second cycle is greater than or equal to 0.5 × N seconds, where N is a positive integer.

7. The oxygen generating component according to claim 2, characterized in that, The oxygen generating component performs oxygen generating operations including a first cycle and a second cycle. During the first cycle, the air pump is controlled to operate to pressurize and deliver gas into the gas separation module, and the valve body is closed; During the second cycle, the air pump is controlled to operate to pressurize and deliver gas into the gas separation module, and the valve body is opened.

8. The oxygen generating component according to claim 7, characterized in that, The gas separation module includes a molecular sieve with a filling amount of N grams. The duration of the first cycle is greater than or equal to 1.5 × N seconds, and the duration of the second cycle is greater than or equal to 0.2 × N seconds, where N is a positive integer.

9. The oxygen generating component according to any one of claims 1 to 8, characterized in that, The second channel is equipped with an airflow control device, which is used to adjust the gas flow rate or the size of the flow cross-sectional area of ​​the output oxygen at the first end of the second channel.

10. The oxygen generating assembly according to any one of claims 1 to 8, characterized in that, Both the first channel and the second channel are hollow tubular, wherein the diameter of the first channel is L1 and the diameter of the second channel is L2, satisfying: L2≤0.1×L1.

11. The oxygen generating assembly according to any one of claims 1 to 8, characterized in that, Both the first channel and the second channel are hollow tubular. The diameter of the first channel ranges from 6 mm to 11 mm, and the diameter of the second channel ranges from 0.05 mm to 0.5 mm.

12. The oxygen generating assembly according to any one of claims 1 to 8, characterized in that, The gas separation module includes a molecular sieve with a filling amount greater than or equal to 15g; and / or, the pump pressure of the gas pump is greater than or equal to 0.2bar.

13. A cooking appliance, characterized in that, include: Body, the body including a cooking cavity; The oxygen generating component as described in any one of claims 1 to 12 is disposed on the body, wherein a first end of the first channel is connected to the atmospheric environment outside the cooking cavity, a first end of the second channel faces into the cooking cavity, and the oxygen generating component is used to deliver oxygen into the cooking cavity.

14. A method for controlling a cooking device, characterized in that, The control method is used to control the cooking apparatus as described in claim 13, the cooking apparatus comprising a cooking chamber and an oxygen generation component, the control method comprising: Control the cooking equipment to perform a cooking operation, the cooking operation including at least one cooking stage; Determine the target cooking stage in at least one of the cooking stages; During the target cooking stage, the oxygen-generating component is controlled to deliver oxygen into the cooking chamber.

15. The control method according to claim 14, characterized in that, The oxygen generating component includes an air pump and a gas separation module. The oxygen generating component performs the operation of delivering oxygen into the cooking cavity, including a first cycle and a second cycle of circulation. The control of the oxygen-generating component to deliver oxygen into the cooking cavity includes: During the first cycle, the air pump is controlled to operate to pressurize and deliver gas into the gas separation module; During the second cycle, the air pump is controlled to stop working so that the gas separation module can be depressurized.

16. The control method according to claim 14, characterized in that, The oxygen generating component includes an air pump, a gas separation module, and a valve body. The oxygen generating component performs the operation of supplying oxygen into the cooking cavity, including a first cycle and a second cycle of circulation. The control of the oxygen-generating component to deliver oxygen into the cooking cavity includes: During the first cycle, the air pump is controlled to operate to pressurize and deliver gas into the gas separation module, and the valve body is closed; During the second cycle, the air pump is controlled to operate to pressurize and deliver gas into the gas separation module, and the valve body is opened.

17. The control method according to claim 15 or 16, characterized in that, The duration of the first cycle is positively correlated with the amount of reactants filling the gas separation module; the duration of the second cycle is shorter than the duration of the first cycle.

18. A control device for a cooking apparatus, characterized in that, The control device is applied to the cooking apparatus as described in claim 13, the cooking apparatus comprising a cooking chamber and an oxygen generation component, the control device comprising: A control module is used to control the cooking equipment to perform cooking operations, the cooking operations including at least one cooking stage; A determining module is used to determine a target cooking stage in at least one of the cooking stages; The control module is also used to control the oxygen-generating component to deliver oxygen into the cooking chamber during the target cooking stage.

19. A control device for a cooking apparatus, characterized in that, include: Memory, used to store programs or instructions; A processor for implementing the steps of the control method as described in any one of claims 14 to 17 when executing the program or instructions.

20. A readable storage medium having a program or instructions stored thereon, characterized in that, When the program or instructions are executed by the processor, they implement the steps of the control method as described in any one of claims 14 to 17.

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