Steaming oven control method and device, steaming oven and storage medium

Abstract

The embodiment of the invention provides a control method and device of a steaming oven, the steaming oven and a storage medium, an inner container of the steaming oven comprises a moisture absorption layer and an opening and closing layer covering the moisture absorption layer, in the working process of the steaming oven, the opening and closing layer is controlled to be closed so that the moisture absorption layer can be prevented from making contact with steam in the inner container, and after the work of the steaming oven is finished, the opening and closing layer is controlled to be closed. The steam content in the inner container is determined, and then the opening and closing layer is controlled to be opened according to the steam content, so that the moisture absorption layer adsorbs the steam in the inner container. After the steaming oven finishes working, the opening and closing layer is controlled to be opened, and the moisture absorption layer is in contact with steam in the inner container, so that the moisture absorption layer quickly adsorbs the steam in the inner container, the scalding risk caused by the high-temperature steam can be avoided, and the cooking safety is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical appliances, and in particular to a control method, device, steam oven and storage medium for a steam oven. Background Art

[0002] A steam oven is a kitchen appliance that integrates steaming and baking functions, and is also known as a "steam baking integrated machine". It combines the characteristics of a traditional oven and a steam oven, and realizes richer cooking methods through intelligent control of steam and heating modes, meeting the cooking needs of modern families for health, convenience and multi-functionality.

[0003] When the steaming mode of the steam oven ends, a large amount of high-temperature saturated steam will remain in its sealed cavity, and the temperature often exceeds 100°C. In the case of an embedded installation of the steam oven, since the embedded model is usually installed under the cabinet, the user needs to bend down to operate after cooking. At this time, if the user opens the oven door, even if it is only partially opened, the high-density steam will quickly escape upward due to its own thermal expansion characteristics. Since the user's face is relatively close to the oven door and the steam has the characteristic of instant diffusion, these high-temperature steam will directly rush towards the user's face and upper body, which is very likely to cause serious instantaneous burns and seriously threaten cooking safety. Summary of the Invention

[0004] In view of the above problems, embodiments of the present invention are proposed to provide a control method, device, steam oven and storage medium for a steam oven that overcome the above problems or at least partially solve the above problems.

[0005] To solve the above problems, embodiments of the present invention disclose a control method for a steam oven. The inner cavity of the steam oven includes a moisture absorption layer and an opening and closing layer covering the moisture absorption layer. The method includes: During the operation of the steam oven, controlling the opening and closing layer to close so that the opening and closing layer blocks the contact between the moisture absorption layer and the steam in the inner cavity; After the operation of the steam oven ends, determining the steam content in the inner cavity; According to the steam content, controlling the opening and closing layer to open so that the moisture absorption layer adsorbs the steam in the inner cavity.

[0006] Optionally, the opening and closing layer includes a plurality of blades arranged in sequence and adjustable; When the opening and closing layer is in the closed state, the plurality of blades are adjusted to overlap each other so that the opening and closing layer blocks the contact between the moisture absorption layer and the steam in the inner cavity; When the opening and closing layer is in the open state, the plurality of blades are adjusted to not overlap each other to form a gap between the plurality of blades, so that the moisture absorption layer adsorbs the steam in the inner cavity.

[0007] Optionally, controlling the opening of the opening and closing layer according to the steam content includes: Determining an enabled area of the moisture absorption layer according to the steam content; Opening an area of the opening and closing layer corresponding to the enabled area of the moisture absorption layer.

[0008] Optionally, determining the steam content in the inner container includes: Determining the mole fraction of water vapor in the inner container; If the mole fraction is greater than or equal to zero and less than or equal to a first threshold, determining that the steam content in the inner container is low; if the mole fraction is greater than the first threshold and less than or equal to a second threshold, determining that the steam content in the inner container is medium; if the mole fraction is greater than the second threshold and less than or equal to one, determining that the steam content in the inner container is high.

[0009] Optionally, determining the mole fraction of water vapor in the inner container includes: Obtaining the relative humidity and temperature of the space formed by the inner container; Determining the saturated vapor pressure corresponding to the temperature; Determining a target water vapor pressure according to the saturated vapor pressure and the relative humidity; Taking the ratio of the target water vapor pressure to the standard atmospheric pressure as the mole fraction of water vapor in the inner container.

[0010] Optionally, the moisture absorption layer is provided on the back, top and side of the inner container, and determining the enabled area of the moisture absorption layer according to the steam content includes: If the steam content is low, determining that the enabled area of the moisture absorption layer is located at the top of the inner container; If the steam content is medium, determining that the enabled area of the moisture absorption layer is located at the top and back of the inner container; If the steam content is high, determining that the enabled area of the moisture absorption layer is located at the top, back and side of the inner container.

[0011] Optionally, the steam oven includes an energy storage device and a fan, the energy storage device is used to convert the heat generated during the cooking process of the steam oven into electrical energy and store it, and the method further includes: When the opening and closing layer is opened, driving the fan to rotate by the electrical energy stored in the energy storage device, so that the fan blows the steam towards the moisture absorption layer.

[0012] Optionally, the method further includes: After the electrical energy stored in the energy storage device is exhausted, controlling the opening and closing piece to close.

[0013] Correspondingly, an embodiment of the present invention discloses a control method and device for a steam oven. The inner cavity of the steam oven includes a moisture absorption layer and an opening / closing layer covering the moisture absorption layer. The device includes: A closing module, configured to control the opening / closing layer to close during the operation of the steam oven, so that the opening / closing layer blocks the moisture absorption layer from contacting the steam in the inner cavity; A steam content determination module, configured to determine the steam content in the inner cavity after the operation of the steam oven ends; An opening module, configured to control the opening / closing layer to open according to the steam content, so that the moisture absorption layer adsorbs the steam in the inner cavity.

[0014] Optionally, the opening / closing layer includes a plurality of blades arranged in sequence and adjustable; When the opening / closing layer is in the closed state, the plurality of blades are adjusted to overlap each other, so that the opening / closing layer blocks the moisture absorption layer from contacting the steam in the inner cavity; When the opening / closing layer is in the open state, the plurality of blades are adjusted to not overlap each other to form a gap between the plurality of blades, so that the moisture absorption layer adsorbs the steam in the inner cavity.

[0015] Optionally, the opening module includes: An enabled area determination sub-module, configured to determine the enabled area of the moisture absorption layer according to the steam content; An opening sub-module, configured to open the area of the opening / closing layer corresponding to the enabled area of the moisture absorption layer.

[0016] Optionally, the steam content determination module includes: A mole fraction determination sub-module, configured to determine the mole fraction of water vapor in the inner cavity; A steam content determination sub-module, configured to determine that the steam content in the inner cavity is low if the mole fraction is greater than or equal to zero and less than or equal to a first threshold; determine that the steam content in the inner cavity is medium if the mole fraction is greater than the first threshold and less than or equal to a second threshold; determine that the steam content in the inner cavity is high if the mole fraction is greater than the second threshold and less than or equal to one.

[0017] Optionally, the mole fraction determination sub-module includes: A relative humidity and temperature acquisition unit, configured to acquire the relative humidity and temperature of the space formed by the inner cavity; A saturated vapor pressure determination unit, configured to determine the saturated vapor pressure corresponding to the temperature; A target water vapor pressure determination unit, configured to determine the target water vapor pressure according to the saturated vapor pressure and the relative humidity; A mole fraction determination unit for using the ratio of the target water vapor pressure to the standard atmospheric pressure as the mole fraction of the water vapor in the inner container.

[0018] Optionally, the moisture absorption layer is provided on the back, top and sides of the inner container. The enabling area determination sub-module according to the steam content includes: A first enabling area determination unit for determining that the enabling area of the moisture absorption layer is located at the top of the inner container if the steam content is low; A second enabling area determination unit for determining that the enabling area of the moisture absorption layer is located at the top and back of the inner container if the steam content is medium; A third enabling area determination unit for determining that the enabling area of the moisture absorption layer is located at the top, back and sides of the inner container if the steam content is high.

[0019] Optionally, the steam oven includes an energy storage device and a fan. The energy storage device is used to convert the heat generated during the cooking process of the steam oven into electrical energy and store it. The device further includes: A driving module for driving the fan to rotate through the electrical energy stored in the energy storage device when the opening and closing layer is opened, so that the fan blows the steam towards the moisture absorption layer.

[0020] Optionally, the device further includes: An opening and closing layer closing module for controlling the opening and closing layer to close after the electrical energy stored in the energy storage device is exhausted.

[0021] Correspondingly, an embodiment of the present invention discloses a steam oven, including: a processor, a memory, and a computer program stored on the memory and capable of running on the processor. When the computer program is executed by the processor, it implements each step of the above-mentioned control method embodiment of the steam oven.

[0022] Correspondingly, an embodiment of the present invention discloses a computer-readable storage medium. A computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, it implements each step of the above-mentioned control method embodiment of the steam oven.

[0023] The embodiments of the present invention include the following advantages: Control method of steam oven according to an embodiment of the present invention. The inner cavity of the steam oven includes a moisture absorption layer and an opening / closing layer covering the moisture absorption layer. During the operation of the steam oven, the opening / closing layer is controlled to close so that the opening / closing layer blocks the moisture absorption layer from contacting the steam in the inner cavity. After the operation of the steam oven ends, the steam content in the inner cavity is determined, and then according to the steam content, the opening / closing layer is controlled to open so that the moisture absorption layer adsorbs the steam in the inner cavity. By controlling the opening / closing layer to open after the operation of the steam oven ends, enabling the moisture absorption layer to contact the steam in the inner cavity, the moisture absorption layer can quickly adsorb the water vapor in the inner cavity, thereby avoiding the risk of scalding caused by high-temperature steam and significantly improving cooking safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a flowchart of the steps of a control method for a steam oven according to an embodiment of the present invention; Figure 2 is a schematic structural diagram of a steam oven according to an embodiment of the present invention; Figure 3 is a schematic structural diagram of the inner cavity of a steam oven according to an embodiment of the present invention; Figure 4 is a block diagram of the structure of an embodiment of a control device for a steam oven according to an embodiment of the present invention.

[0025] Reference numerals: cavity 10, water purification tank 11, waste water tank 12, steam outlet 13, heating tube 14, steam quantity indicator bar 15, stored energy indicator bar 16, inner cavity base material 20, moisture absorption layer 21, opening / closing layer 22, coating 23. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] A steam oven is a kitchen appliance that integrates steaming and baking functions and is also known as a "steam baking integrated machine". It combines the characteristics of a traditional oven and a steam oven, and through intelligent control of steam and heating modes, realizes more diverse cooking methods, meeting the cooking needs of modern families for health, convenience, and multi-functionality.

[0028] When the steam oven finishes the steaming mode, a large amount of high-temperature saturated steam remains in its closed cavity, and the temperature often exceeds 100°C. In the case of an embedded installation of the steam oven, since the embedded model is usually installed under the cabinet, users need to bend down to operate after cooking. At this time, if the user opens the oven door, even if it is only partially opened, the high-density steam will quickly escape upward due to its own thermal expansion characteristics. Since the user's face is relatively close to the oven door and the steam has the characteristic of instantaneous diffusion, these high-temperature steam will directly rush towards the user's face and upper body, extremely likely causing serious instantaneous scalding and seriously threatening cooking safety.

[0029] One of the core concepts of the embodiments of the present invention is that the inner cavity of the steam oven includes a moisture absorption layer and an opening / closing layer covering the moisture absorption layer. After the steam oven finishes working, the opening / closing layer is controlled to open, so that the moisture absorption layer contacts the steam in the inner cavity, enabling the moisture absorption layer to quickly adsorb the water vapor in the inner cavity, thereby avoiding the risk of scald caused by high-temperature steam and significantly improving cooking safety.

[0030] Referring to Figure 1 , a step flowchart of a control method for a steam oven according to an embodiment of the present invention is shown. The inner cavity of the steam oven includes a moisture absorption layer and an opening / closing layer covering the moisture absorption layer, and specifically may include the following steps: Step 101, during the working process of the steam oven, control the opening / closing layer to close, so that the opening / closing layer blocks the moisture absorption layer from contacting the steam in the inner cavity.

[0031] Traditional steam ovens only have steaming and baking functions and cannot meet users' diverse cooking needs such as making soup and porridge, resulting in users having to purchase a stew pot or rice cooker additionally, significantly increasing the economic investment and time cost. Figure 2 A schematic structural diagram of a steam oven according to an embodiment of the present invention is shown. The steam oven of the embodiment of the present invention integrates three functions of steaming, baking, and stewing, can meet users' diversified cooking needs, and reduce the purchase cost of kitchen equipment.

[0032] The steam oven of the embodiment of the present invention can be used for steaming, baking, and stewing, sharing a cavity. The cavity 10 is the overall internal space of the steam oven. The inner wall of the cavity 10 is composed of an inner cavity (not shown in the figure). The inner cavity is the innermost cavity wall that directly contacts food and steam. A water purification tank 11 and a wastewater tank 12 are provided at the top of the steam oven. Three steam outlets 13 are provided at the bottom of the cavity 10. When the user selects the steaming mode, the steam generator vaporizes the water in the water purification tank 11, so that the three steam outlets 13 at the bottom of the cooking cavity 10 can spray steam simultaneously, realizing large-steam rapid steaming. Part of the condensed water after steaming enters the wastewater tank 12. Heating tubes 14 are provided in the cavity 10. Exemplarily, three groups of heating tubes 14 are provided at the top of the cavity 10, and three groups of heating tubes 14 are provided at the bottom of the cavity 10, a total of six groups of heating tubes 14, which can realize multi-sided simultaneous baking of food materials without manual turning. The heating tubes 14 can be circular tubular materials. It should be noted that the shape, material, and installation position of the heating tubes are not limited in the embodiments of the present invention. When the user selects the stewing mode, place the stew pot on the grill and realize the stewing of food materials through the upper and lower heating tubes.

[0033] The inner wall of the cavity 10 of the steam oven is composed of an inner cavity. Figure 3The structure diagram of the inner container of the steam oven is shown, specifically a cross-sectional view of the side of the inner container. The inner container is the innermost cavity wall that directly contacts food and steam. The inner container includes an inner container base material 20, and the inner container base material 20 can be stainless steel, ceramic, etc. The outer side of the inner container base material is the outer shell of the steam oven (not shown in the figure). Figure 3 The left side is shown in the figure. The inner container also includes a moisture absorption layer 21 and an opening / closing layer 22 covering the moisture absorption layer 21. The outer side of the moisture absorption layer 21 is covered by the inner container base material 20, and the inner side is covered by the opening / closing layer 22. The inner side of the opening / closing layer 22 is the internal space of the steam oven.

[0034] The moisture absorption layer 21 is composed of a moisture absorption material. Exemplarily, the moisture absorption material can be materials such as carbon-based porous materials, alumina molecular sieve composites, ZrO2 (zirconia), SiO2 (silica), etc. Of course, materials that can adsorb water vapor can all be used as the composition materials of the moisture absorption layer, and the embodiments of the present invention do not limit this.

[0035] During the operation of the steam oven, for example, during the steaming process, the steam generator vaporizes the water in the water purification tank 11 so that the three steam outlets 13 at the bottom of the cooking cavity 10 can spray steam simultaneously. At this time, there will be steam in the cavity 10, that is, there will be steam in the inner container. It is necessary to control the opening / closing layer 22 to close, so that the opening / closing layer blocks the contact between the moisture absorption layer 21 and the steam in the inner container.

[0036] Step 102, after the operation of the steam oven ends, determine the steam content in the inner container.

[0037] Specifically, after the operation of the steam oven ends, it is necessary to determine the steam content in the inner container at this time.

[0038] Step 103, according to the steam content, control the opening / closing layer to open so that the moisture absorption layer adsorbs the steam in the inner container.

[0039] Specifically, after determining the steam content in the inner container, according to the steam content, control the opening / closing layer 22 to open, so that the moisture absorption layer 21 covered by the opening / closing layer 22 is exposed to directly contact the steam in the inner container, so that the moisture absorption layer 21 adsorbs the steam in the inner container, thereby avoiding the user being scalded by the steam that quickly escapes upward when opening the door, and improving cooking safety.

[0040] Control method of steam oven according to an embodiment of the present invention. The inner cavity of the steam oven includes a moisture absorption layer and an opening / closing layer covering the moisture absorption layer. During the operation of the steam oven, the opening / closing layer is controlled to close so that the opening / closing layer blocks the contact between the moisture absorption layer and the steam in the inner cavity. After the operation of the steam oven ends, the steam content in the inner cavity is determined, and then, according to the steam content, the opening / closing layer is controlled to open so that the moisture absorption layer adsorbs the steam in the inner cavity. By controlling the opening / closing layer to open after the operation of the steam oven ends, and allowing the moisture absorption layer to contact the steam in the inner cavity, the moisture absorption layer can quickly adsorb the water vapor in the inner cavity, thereby avoiding the risk of scald caused by high-temperature steam and significantly improving the cooking safety.

[0041] In an embodiment of the present invention, the opening / closing layer includes a plurality of blades arranged in sequence and adjustable; When the opening / closing layer is in the closed state, the plurality of blades are adjusted to overlap each other so that the opening / closing layer blocks the contact between the moisture absorption layer and the steam in the inner cavity; When the opening / closing layer is in the open state, the plurality of blades are adjusted to not overlap each other to form a gap between the plurality of blades, so that the moisture absorption layer adsorbs the steam in the inner cavity.

[0042] Specifically, the opening / closing layer includes a plurality of blades arranged in sequence and adjustable. The plurality of blades arranged in sequence can be synchronously adjusted by using a linkage structure. When the opening / closing layer is in the closed state, the plurality of blades overlap and press against each other to form a gapless sealing surface, which can completely cover the moisture absorption layer, so that the opening / closing layer blocks the contact between the moisture absorption layer and the steam in the inner cavity. When the opening / closing layer is in the open state, the plurality of blades in the closed state rotate synchronously by a preset angle, and the plurality of blades do not overlap each other. Uniformly distributed grid channels are formed between adjacent blades, that is, a gap is formed between the plurality of blades, so that the moisture absorption layer can be exposed and not covered by the opening / closing layer, so that it can directly contact the steam in the inner cavity and adsorb the steam in the inner cavity. Exemplarily, the preset angle can be ninety degrees.

[0043] The opening / closing layer is implemented by a structure similar to a shutter. During the operation of the steam oven, since the steam oven does not need to adsorb steam during the operation process, for example, during the steaming process, it is necessary to control the opening / closing layer to close so that the plurality of blades of the opening / closing layer form a gapless sealing surface to completely cover the moisture absorption layer, thereby blocking the contact between the moisture absorption layer and the steam in the inner cavity and avoiding affecting the normal operation of the steam oven. After the operation of the steam oven ends, it is necessary to adsorb steam to avoid the risk of scalding, so it is necessary to control the opening / closing layer to open so that a gap is formed between the plurality of blades of the opening / closing layer, so that the moisture absorption layer can be exposed to directly contact the steam in the inner cavity and adsorb the steam in the inner cavity.

[0044] Refer to Figure 3, the surface of the opening and closing layer 22 can be coated with a coating 23 that is hydrophobic and oleophobic. The hydrophobic and oleophobic coating 23 can effectively repel water and oily substances. Its core principle is to make it difficult for liquids to wet or adhere through low-surface-energy chemical substances and / or microscopic rough structures. The hydrophobic and oleophobic coating materials can be organic fluorides, organosilicones, inorganic-organic hybrid materials, bionic micro-nano structure coatings, etc. Of course, the embodiments of the present invention do not limit this.

[0045] During the operation of the steam oven, the opening and closing layer 22 is in a closed state, that is, the opening and closing layer 22 is in direct contact with the internal environment formed by the inner liner of the steam oven. The surface of the opening and closing layer is coated with a coating 23 that is hydrophobic and oleophobic, that is, the hydrophobic and oleophobic coating 23 is in direct contact with the internal environment of the steam oven. The hydrophobic and oleophobic properties have the following specific functions: anti-sticking and easy to clean. During the steaming and baking process of the steam oven, it is difficult for grease, sugar, or moisture to stay on the surface of the coating, reducing the probability of adhesion after food burns, reducing the attachment of food residues, and simplifying the cleaning process. Only a damp cloth needs to be wiped to remove stains, avoiding the accumulation of stubborn oil stains; anti-corrosion protection. The inside of the steam oven is exposed to high-temperature steam and grease for a long time, and ordinary metals are prone to oxidation or rust. The hydrophobic and oleophobic coating can block water vapor and acidic oil stains, extend the life of the inner liner, and when the user frequently uses cleaning agents, the coating can reduce its corrosion to the substrate; the oleophobic property reduces oil residue, and oil is a medium for bacteria and molds, indirectly reducing odors and hygiene hazards.

[0046] During the operation of the steam oven, the opening and closing layer 22 is in a closed state. The multiple blades of the opening and closing layer 22 form a gapless sealing surface that completely covers the moisture absorption layer 21. The surface of the opening and closing layer 22 is coated with a coating 23 that is hydrophobic and oleophobic, that is, the hydrophobic and oleophobic coating 23 is in direct contact with the internal environment of the steam oven. At this time, during the operation of the steam oven, the hydrophobic and oleophobic coating can effectively reduce the attachment of water stains, oil stains, and food residues, making the inner wall easier to clean. At the same time, it reduces the corrosion risk caused by oil oxidation and water retention, extending the service life of the equipment; after the operation of the steam oven is over, the opening and closing layer 22 is in an open state, and gaps are formed between the multiple blades of the opening and closing layer. The moisture absorption layer 21 is in direct contact with the internal environment of the steam oven. The moisture absorption layer 21 can adsorb the steam in the internal environment of the steam oven, thus avoiding the risk of scalding.

[0047] In the embodiment of the present invention, in step 103, according to the steam content, control the opening of the opening and closing layer so that the moisture absorption layer adsorbs the steam in the inner liner, which may specifically include the following sub-steps: Sub-step S11, determine the enabled area of the moisture absorption layer according to the steam content.

[0048] Specifically, according to the steam content in the internal environment of the steam oven, determine the enabled area of the moisture absorption layer that needs to be used, that is, determine the area of the moisture absorption layer that needs to be used.

[0049] Sub-step S12: Open the area in the opening / closing layer corresponding to the enabled area of the moisture absorption layer.

[0050] Specifically, after determining the enabled area of the moisture absorption layer, open the area in the opening / closing layer corresponding to the enabled area of the moisture absorption layer. Since the opening / closing layer is located on the upper layer of the moisture absorption layer and covers the moisture absorption layer in the closed state, open the area in the opening / closing layer that is connected and in contact with the enabled area of the moisture absorption layer, that is, open the area in the opening / closing layer that covers the enabled area of the moisture absorption layer, so that the enabled area of the moisture absorption layer can be exposed to directly contact the internal environment of the steam oven, thereby adsorbing the steam in the internal environment of the steam oven.

[0051] In the embodiment of the present invention, step 102: After the steam oven finishes working, determine the steam content in the inner container, which may specifically include the following sub-steps: Sub-step S21: Determine the mole fraction of water vapor in the inner container.

[0052] Specifically, the mole fraction is a concentration unit in chemistry that represents the proportion of a certain component in a mixture. The quantitative judgment standard of the steam content can be expressed by the mole fraction of water vapor, and it is necessary to determine the mole fraction of water vapor in the inner container.

[0053] Sub-step S22: If the mole fraction is greater than or equal to zero and less than or equal to the first threshold, determine that the steam content in the inner container is low; if the mole fraction is greater than the first threshold and less than or equal to the second threshold, determine that the steam content in the inner container is medium; if the mole fraction is greater than the second threshold and less than or equal to one, determine that the steam content in the inner container is high.

[0054] Exemplarily, the first threshold can be 0.3, and the second threshold can be 0.6. If the mole fraction is greater than or equal to 0 and less than or equal to 0.3, then determine that the steam content in the inner container is low; if the mole fraction is greater than 0.3 and less than or equal to 0.6, then determine that the steam content in the inner container is medium; if the mole fraction is greater than 0.6 and less than or equal to 1, then determine that the steam content in the inner container is high. Of course, the first threshold and the second threshold can be set according to actual needs in practical applications, and the embodiment of the present invention does not limit this.

[0055] Figure 2 On the left side of the outside of the steam oven, there is a steam quantity indication bar 15 for indicating the steam content. The steam quantity indication bar 15 has three areas: high, medium, and low. After the steam oven determines the steam content, it can be displayed on the steam quantity indication bar 15 on the left side of the outside of the steam oven. Through the indication bar of the steam content, the user can know the steam content in the internal environment of the steam oven.

[0056] In the embodiment of the present invention, sub-step S21: Determine the mole fraction of water vapor in the inner container, which may specifically include the following sub-steps: Sub-step S211: Obtain the relative humidity and temperature of the space formed by the inner container.

[0057] Specifically, the space formed by the inner container is the internal environment space of the steam oven. Obtain the relative humidity and temperature of the internal environment of the steam oven. Exemplarily, the steam oven is equipped with a temperature and humidity sensor, and the relative humidity and temperature of the internal environment of the steam oven can be obtained through the temperature and humidity sensor.

[0058] Relative Humidity (RH) is the ratio of the actual content of water vapor in the air to the maximum amount of water vapor that the air can hold at the current temperature (saturated water vapor amount), usually expressed as a percentage (%). The temperature and humidity sensor can measure RH through a capacitive or resistive humidity-sensitive element and integrate a temperature sensor for compensation to ensure accuracy.

[0059] Sub-step S212: Determine the saturated vapor pressure corresponding to the temperature.

[0060] Specifically, saturated vapor pressure is an important concept in thermodynamics, referring to the vapor pressure when the vapor of a certain substance reaches dynamic equilibrium with its liquid phase (or solid phase) at a specific temperature. At this time, the evaporation and condensation rates are equal, and the system is in a stable state. When the vapor concentration in the closed space no longer increases (i.e., the number of escaping molecules = the number of returning molecules), the pressure at this time is the saturated vapor pressure. When the temperature rises, the molecular kinetic energy increases, and more liquid molecules can escape into the gas phase. Therefore, the saturated vapor pressure increases exponentially with the increase in temperature (see the Clausius-Clapeyron equation).

[0061] The saturated vapor pressure Psat at this temperature can be determined according to the temperature measured by the temperature and humidity sensor. Since the relationship between temperature and vapor pressure conforms to the Clausius-Clapeyron equation, the saturated vapor pressure corresponding to the temperature can be determined through the Clausius-Clapeyron equation.

[0062] Sub-step S213: Determine the target water vapor pressure according to the saturated vapor pressure and the relative humidity.

[0063] Specifically, after determining the saturated vapor pressure corresponding to the temperature, determine the target water vapor pressure according to the saturated vapor pressure and the relative humidity. The target water vapor pressure is the actual water vapor pressure. The actual water vapor pressure refers to the partial pressure of water vapor in the air in the current environment, which directly reflects the absolute content of water vapor in the air. The actual water vapor pressure Pv = RH × Psat, where RH is the relative humidity and Psat is the saturated vapor pressure.

[0064] Sub-step S214: Take the ratio of the target water vapor pressure to the standard atmospheric pressure as the mole fraction of water vapor in the inner container.

[0065] Specifically, after determining the target water vapor pressure, calculate the ratio of the target water vapor pressure to the standard atmospheric pressure to obtain the mole fraction of water vapor in the inner tank, that is, the mole fraction of water vapor ywater = Pv / 101.325 Kpa, where 101.325 Kpa is the standard atmospheric pressure and 0 ≤ ywater ≤ 1.

[0066] In the embodiment of the present invention, the moisture absorption layer is provided on the back, top and sides of the inner tank. Sub-step S11, determine the enabled area of the moisture absorption layer according to the steam content, which may specifically include the following sub-steps: Sub-step S111, if the steam content is low, determine that the enabled area of the moisture absorption layer is located at the top of the inner tank.

[0067] Sub-step S112, if the steam content is medium, determine that the enabled area of the moisture absorption layer is located at the top and back of the inner tank.

[0068] Sub-step S113, if the steam content is high, determine that the enabled area of the moisture absorption layer is located at the top, back and sides of the inner tank.

[0069] Specifically, the moisture absorption layer is provided on the back, top and sides of the inner tank. If it is determined that the steam content is low, then determine that the enabled area of the moisture absorption layer is located at the top of the inner tank, that is, it is necessary to enable the moisture absorption layer at the top of the inner tank and open the corresponding opening and closing layer of the moisture absorption layer at the top of the inner tank so that the moisture absorption layer at the top of the inner tank is exposed to adsorb steam; if it is determined that the steam content is medium, then determine that the enabled area of the moisture absorption layer is located at the top and back of the inner tank, that is, it is necessary to enable the moisture absorption layers at the top and back of the inner tank and open the corresponding opening and closing layers of the moisture absorption layers at the top and back of the inner tank so that the moisture absorption layers at the top and back of the inner tank are exposed to adsorb steam; if it is determined that the steam content is high, then determine that the enabled area of the moisture absorption layer is located at the top, back and sides of the inner tank, that is, it is necessary to enable the moisture absorption layers at the top, back and sides of the inner tank and open the corresponding opening and closing layers of the moisture absorption layers at the top, back and sides of the inner tank so that the moisture absorption layers at the top, back and sides of the inner tank are exposed to adsorb steam.

[0070] Determine the enabled area of the moisture absorption layer according to the steam content. In the case of low steam content, the demand for moisture absorption is not very high. Only enable the moisture absorption layer at the top of the inner tank, so that the moisture absorption layer at the top of the inner tank performs the moisture absorption work, which can meet the moisture absorption demand of low steam content. The moisture absorption layers on the back and sides of the inner tank do not perform the moisture absorption work. Enable the corresponding moisture absorption layer according to the demand and do not enable the moisture absorption layer when it is not needed, which can improve the service life of the moisture absorption layer. In the case of high steam content, the demand for moisture absorption is also high. Enable all the moisture absorption layers, that is, the moisture absorption layers at the top, back and sides of the inner tank, which can improve the efficiency of steam adsorption.

[0071] In an embodiment of the present invention, a steam oven includes an energy storage device and a fan. The energy storage device is used to convert the heat generated by the steam oven during cooking into electrical energy and store it. The method further includes: Step 104, when the opening and closing layer is opened, drive the fan to rotate by the electrical energy stored in the energy storage device, so that the fan blows the steam towards the moisture absorption layer.

[0072] Specifically, the steam oven includes an energy storage device and a fan. The energy storage device can be arranged at the bottom of the steam oven. The energy storage device includes energy storage materials, which can be capacitors, perovskite materials, etc. During the operation of the steam oven, excess heat will be generated in the internal environment of the steam oven. The energy storage device can store the heat diffused into the internal environment during cooking. After the steam oven finishes working, after controlling the opening and closing layer to open according to the steam content, the moisture absorption layer is exposed to contact with the steam in the internal environment and can directly adsorb the steam in the internal environment. At this time, use the electrical energy stored in the energy storage device to drive the fan to rotate, and the fan blows the steam towards the moisture absorption layer, which can improve the moisture absorption efficiency of the moisture absorption layer. The fan can be a micro fan and is arranged at the bottom of the steam oven. Of course, any structure that can lead the steam to the moisture absorption layer can replace the fan.

[0073] The energy storage material can be a semiconductor material. The semiconductor material has a thermoelectric effect. During the cooking process of the steam oven, heat Q can be generated. In the electrothermal conversion, Q = I2Rt, where t is the cooking time, I is the current of the device circuit, and R is the resistance of the device circuit. During the process of the energy storage material rising from a low temperature to a high temperature, it is converted into electrical energy due to the existence of the thermoelectric potential. The conversion efficiency η = 1 - (Tc / Th), where Tc is the temperature of the low-temperature source and Th is the temperature of the high-temperature source. The higher the efficiency, the more electrical energy is converted from the thermal energy. The time T for the electrical energy stored in the energy storage device to drive the fan to rotate is T = t * η. Figure 2 On the right side outside the steam oven, there is an energy storage indication bar 16, which indicates the available time of the energy stored in the energy storage device. Exemplarily, the energy storage indication bar 16 can have three areas: 30s, 1min, and 1.5min.

[0074] Utilize the energy stored by the energy storage material during the cooking process to drive the fan to rotate. The fan blows the steam towards the moisture absorption layer, which can not only improve the adsorption efficiency of the moisture absorption layer, effectively improve the energy utilization rate, break through the thermal efficiency limit of traditional kitchen appliances, reduce heat waste, achieve energy consumption reduction, reduce the user's additional usage cost, create a more efficient, safer, and more intelligent cooking experience for the user, and enhance the sense of well-being in use.

[0075] In an embodiment of the present invention, the method further includes: After the electrical energy stored in the energy storage device is exhausted, control the opening and closing layer to close.

[0076] After the electric energy stored in the energy storage device is exhausted, the fan cannot be driven by the energy storage device. At this time, the opening and closing layer can be controlled to close, and the moisture absorption layer has completed steam adsorption.

[0077] In the embodiments of the present invention, when the user selects the steaming, baking, and stewing modes respectively, the modes are different, and the amount of steam generated also changes. Generally, the amount of steam during steaming is relatively large; there is a certain amount of steam during stewing; and there is almost no steam during baking. When the user selects to steam fish, the steam oven is turned on for cooking, and the steaming mode is selected. The steaming time for fish is usually 10 - 15 minutes, and the temperature is set at 100 °C. Assuming that the environmental relative humidity detected by the temperature and humidity sensor is 80%, it can be known that the mole fraction ywater is approximately equal to 0.8, and the steam content is very high at this time. The waste heat generated during the cooking process is stored in the energy storage material at the bottom of the device. This material converts thermal energy into electrical energy, and this electrical energy serves as the energy source for the fan to blow the steam towards the moisture absorption material after cooking, that is, corresponding to the working time of the moisture absorption material. The amount of electrical energy is reflected in the indicator bar on the right side of the door in the form of time. Assuming that the conversion efficiency of the energy storage material is 10%, when the steaming time for fish is 10 minutes, the working time available for the moisture absorption material is approximately 1 minute. After the steaming process for fish ends, the box body prompts that the steam content is "high". At this time, the moisture absorption materials on the back, top, and side of the box body work for 1 minute. After 1 minute, the user is reminded that the cooking is completed and can safely open the door. The user can take out the food and enjoy the deliciousness.

[0078] For the control method of the steam oven according to the embodiments of the present invention, the inner cavity of the steam oven includes a moisture absorption layer and an opening and closing layer covering the moisture absorption layer. During the operation of the steam oven, the opening and closing layer is controlled to close so that the opening and closing layer blocks the contact between the moisture absorption layer and the steam in the inner cavity. After the operation of the steam oven ends, the steam content in the inner cavity is determined, and then according to the steam content, the opening and closing layer is controlled to open so that the moisture absorption layer adsorbs the steam in the inner cavity. By controlling the opening and closing layer to open after the operation of the steam oven ends, enabling the moisture absorption layer to contact the steam in the inner cavity, the moisture absorption layer can quickly adsorb the water vapor in the inner cavity, thereby avoiding the risk of scalding caused by high-temperature steam and significantly improving the cooking safety.

[0079] It should be noted that for the method embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the embodiments of the present invention are not limited by the described action sequences, because according to the embodiments of the present invention, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily essential for the embodiments of the present invention.

[0080] Refer to Figure 4, showing a structural block diagram of an embodiment of a control device of a steam oven according to an embodiment of the present invention. The inner cavity of the steam oven includes a moisture absorption layer and an opening and closing layer covering the moisture absorption layer. The device may specifically include the following modules: A closing module 201, configured to control the opening and closing layer to close during the operation of the steam oven, so that the opening and closing layer blocks the moisture absorption layer from contacting the steam in the inner cavity; A steam content determination module 202, configured to determine the steam content in the inner cavity after the operation of the steam oven ends; An opening module 203, configured to control the opening and closing layer to open according to the steam content, so that the moisture absorption layer adsorbs the steam in the inner cavity.

[0081] For the control device of the steam oven according to the embodiment of the present invention, the inner cavity of the steam oven includes a moisture absorption layer and an opening and closing layer covering the moisture absorption layer. During the operation of the steam oven, the opening and closing layer is controlled to close, so that the opening and closing layer blocks the moisture absorption layer from contacting the steam in the inner cavity. After the operation of the steam oven ends, the steam content in the inner cavity is determined, and then according to the steam content, the opening and closing layer is controlled to open, so that the moisture absorption layer adsorbs the steam in the inner cavity. By controlling the opening and closing layer to open after the operation of the steam oven ends, and allowing the moisture absorption layer to contact the steam in the inner cavity, the moisture absorption layer can quickly adsorb the water vapor in the inner cavity, thereby avoiding the risk of scald caused by high-temperature steam and significantly improving cooking safety.

[0082] In the embodiment of the present invention, the opening and closing layer includes a plurality of sequentially arranged and adjustable blades; When the opening and closing layer is in the closed state, the plurality of blades are adjusted to overlap each other, so that the opening and closing layer blocks the moisture absorption layer from contacting the steam in the inner cavity; When the opening and closing layer is in the open state, the plurality of blades are adjusted to not overlap each other to form a gap between the plurality of blades, so that the moisture absorption layer adsorbs the steam in the inner cavity.

[0083] In the embodiment of the present invention, the opening module includes: An enabled area determination sub-module, configured to determine the enabled area of the moisture absorption layer according to the steam content; An opening sub-module, configured to open the area corresponding to the enabled area of the moisture absorption layer in the opening and closing layer.

[0084] In the embodiment of the present invention, the steam content determination module includes: A mole fraction determination sub-module, configured to determine the mole fraction of the water vapor in the inner cavity; A steam content determination sub-module, configured to determine that the steam content in the inner cavity is low if the mole fraction is greater than or equal to zero and less than or equal to a first threshold; determine that the steam content in the inner cavity is medium if the mole fraction is greater than the first threshold and less than or equal to a second threshold; determine that the steam content in the inner cavity is high if the mole fraction is greater than the second threshold and less than or equal to one.

[0085] In an embodiment of the present invention, the mole fraction determination sub-module includes: A relative humidity and temperature acquisition unit, configured to acquire the relative humidity and temperature of the space formed by the inner container; A saturated vapor pressure determination unit, configured to determine the saturated vapor pressure corresponding to the temperature; A target water vapor pressure determination unit, configured to determine the target water vapor pressure according to the saturated vapor pressure and the relative humidity; A mole fraction determination unit, configured to use the ratio of the target water vapor pressure to the standard atmospheric pressure as the mole fraction of the water vapor in the inner container.

[0086] In an embodiment of the present invention, the moisture absorption layer is provided on the back, top and side of the inner container. According to the steam content, the enabled area determination sub-module includes: A first enabled area determination unit, configured to determine that the enabled area of the moisture absorption layer is located at the top of the inner container if the steam content is low; A second enabled area determination unit, configured to determine that the enabled areas of the moisture absorption layer are located at the top and back of the inner container if the steam content is medium; A third enabled area determination unit, configured to determine that the enabled areas of the moisture absorption layer are located at the top, back and side of the inner container if the steam content is high.

[0087] In an embodiment of the present invention, the steam oven includes an energy storage device and a fan. The energy storage device is configured to convert the heat generated by the steam oven during cooking into electrical energy and store it. The device further includes: A driving module, configured to drive the fan to rotate through the electrical energy stored in the energy storage device when the opening and closing layer is opened, so that the fan blows the steam towards the moisture absorption layer.

[0088] In an embodiment of the present invention, the device further includes: An opening and closing layer closing module, configured to control the opening and closing layer to close after the electrical energy stored in the energy storage device is exhausted.

[0089] For the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple. For the relevant parts, refer to the partial description of the method embodiment.

[0090] An embodiment of the present invention further provides a steam oven, including: It includes a processor, a memory, and a computer program stored on the memory and capable of running on the processor. When the computer program is executed by the processor, it implements each process of the above-mentioned control method embodiment of the steam oven, and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0091] An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it implements each process of the above-described control method embodiment of the steam oven and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0092] Each embodiment in this specification is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other.

[0093] Those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a device, or a computer program product. Therefore, the embodiments of the present invention can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the embodiments of the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0094] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram can be implemented by computer program instructions, and the combination of the processes and / or blocks in the flowchart and / or block diagram can also be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal devices generate a device for implementing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0095] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured article including an instruction device, and the instruction device implements the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0096] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device, so that a series of operation steps are executed on the computer or other programmable terminal device to generate a computer-implemented process. Thus, the instructions executed on the computer or other programmable terminal device provide for implementing the functions in the process Figure 1One process or multiple processes and / or boxes Figure 1 Steps of the functions specified in one box or multiple boxes.

[0097] Although the preferred embodiments of the embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the present invention.

[0098] Finally, it should also be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or terminal device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or terminal device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method, article or terminal device comprising the said element.

[0099] The above has introduced in detail a control method, device, steam oven and storage medium provided by the present invention. Specific examples are used herein to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A method for controlling a steam oven, characterized in that: The inner container of the steam oven comprises a moisture absorbing layer and an opening and closing layer covering the moisture absorbing layer, and the method comprises: During the operation of the steam oven, the opening and closing layer is controlled to be closed so that the opening and closing layer blocks the moisture absorbing layer from contacting the steam in the inner pot; After the steam oven has finished working, determining the steam content in the inner pot; According to the steam content, the opening and closing layer is controlled to open so that the moisture absorption layer absorbs the steam in the inner container.

2. The control method of the steam oven according to claim 1, characterized in that: The opening and closing layer includes a plurality of blades arranged in sequence and adjustable; When the opening and closing layer is in a closed state, the plurality of blades are adjusted to overlap each other so that the opening and closing layer blocks the moisture absorbing layer from contacting the steam in the inner container; When the opening and closing layer is in an open state, the plurality of blades are adjusted to not overlap each other to form gaps between the plurality of blades, so that the moisture absorption layer absorbs the steam in the inner container.

3. The control method of the steam oven according to claim 1, characterized in that: The step of controlling the opening of the opening and closing layer according to the steam content comprises: determining an activated area of ​​the hygroscopic layer according to the vapor content; The area of ​​the opening and closing layer corresponding to the activated area of ​​the moisture-absorbing layer is opened.

4. The control method of the steam oven according to claim 2, characterized in that: Determining the steam content in the inner container includes: determining a mole fraction of water vapor in the liner; If the mole fraction is greater than or equal to zero and less than or equal to a first threshold, the steam content in the inner pot is determined to be low; if the mole fraction is greater than the first threshold and less than or equal to a second threshold, the steam content in the inner pot is determined to be medium; if the mole fraction is greater than the second threshold and less than or equal to one, the steam content in the inner pot is determined to be high.

5. The control method of the steam oven according to claim 4, characterized in that: The determining the mole fraction of water vapor in the inner container comprises: Obtaining the relative humidity and temperature of the space formed by the inner tank; determining the saturated vapor pressure corresponding to the temperature; Determining a target water vapor pressure according to the saturated vapor pressure and the relative humidity; The ratio of the target water vapor pressure to the standard atmospheric pressure is used as the mole fraction of the water vapor in the inner container.

6. The control method of the steam oven according to claim 4, characterized in that: The moisture absorption layer is arranged on the back, top and side of the inner container, and the activation area of ​​the moisture absorption layer is determined according to the steam content, including: If the steam content is low, determining that the activated area of ​​the moisture absorbing layer is located at the top of the liner; If the steam content is medium, determining that the activated area of ​​the moisture-absorbing layer is located at the top and back of the liner; If the vapor content is high, it is determined that the activated areas of the moisture-absorbing layer are located at the top, back and sides of the liner.

7. The control method of the steam oven according to claim 1, characterized in that: The steam oven comprises an energy storage device and a fan, wherein the energy storage device is used to convert heat generated by the steam oven during cooking into electrical energy and store the heat. The method further comprises: When the opening and closing layer is opened, the electric energy stored in the energy storage device drives the fan to rotate, so that the fan blows the steam toward the moisture absorption layer.

8. The control method of the steam oven according to claim 7, characterized in that: The method further comprises: After the electric energy stored in the energy storage device is exhausted, the opening and closing layer is controlled to close.

9. A control device for a steam oven, characterized in that: The inner container of the steam oven comprises a moisture absorbing layer and an opening and closing layer covering the moisture absorbing layer, and the device comprises: A closing module, used for controlling the opening and closing layer to close during the operation of the steam oven, so that the opening and closing layer blocks the moisture absorbing layer from contacting the steam in the inner pot; A steam content determination module, used for determining the steam content in the inner pot after the steam oven finishes working; The opening module is used to control the opening of the opening and closing layer according to the steam content, so that the moisture absorption layer absorbs the steam in the inner container.

10. A steam oven, characterized in that: include: A processor, a memory, and a computer program stored in the memory and capable of running on the processor, wherein when the computer program is executed by the processor, the steps of the method for controlling the steaming oven according to any one of claims 1 to 8 are implemented.

11. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method for controlling the steam oven according to any one of claims 1 to 8 are implemented.

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