Dehumidification control method of steaming oven and steaming oven

Abstract

The invention relates to a moisture removal control method of a steaming oven and the steaming oven. The steaming oven comprises an inner container, an air pump, an exhaust fan and a temperature sensor, wherein the air pump and the exhaust fan are communicated with the inner container, and the temperature sensor is arranged in the inner container. The method comprises the steps that the steaming function mode of the steaming oven is determined; determining a moisture removal stage of the steaming oven based on the cooking time of the steaming oven; if the steaming oven is in the first moisture removal stage, the air pump and the exhaust fan are controlled to operate corresponding gears on the basis of the temperature detected by the temperature sensor, so that the humidity in the inner container is controlled to reach the corresponding preset humidity; if the steaming oven is in the second moisture removal stage, the air pump and the exhaust fan are controlled to operate at the highest gear, according to the method, the moisture removal stage is determined according to the cooking time of the steaming oven, different moisture removal control strategies are adopted in different moisture removal stages, the moisture removal speed is accurately controlled, the cooking effect is improved, and the cooking efficiency is improved. And the risk of steam over the surface is eliminated.

Description

Technical Field

[0001] The present application relates to the field of cooking appliances, and particularly to a moisture exhaust control method and a steam oven for a steam oven. Background Art

[0002] With the diversified needs of people for kitchen appliances, cooking appliances with a single steaming function or a single baking function can no longer meet people's current needs. As a steam kitchen appliance with both a steaming function and a baking function, a steam oven has emerged as the times require.

[0003] In related methods, an air pump and an exhaust fan are used to exhaust the moisture inside the steam oven. However, in order to pursue rapid moisture exhaust, the speed of the air pump or the exhaust fan is usually fixed at a high gear, resulting in a rapid decrease in the humidity and temperature inside the inner container during the moisture exhaust process, and the moisture exhaust accuracy cannot be precisely controlled, thus affecting the cooking effect of food. On the other hand, if the moisture is not exhausted in time after cooking, there is a risk of steam hitting the face when opening the door of the steam oven. Summary of the Invention

[0004] Based on this, it is necessary to provide a moisture exhaust control method and a steam oven for a steam oven in view of the above technical problems.

[0005] In a first aspect, an embodiment of the present invention provides a moisture exhaust control method for a steam oven. The steam oven includes an inner container, an air pump and an exhaust fan communicated with the inner container, and a temperature sensor disposed in the inner container. The method is applied to the steaming function mode of the steam oven, and the method includes:

[0006] Determine the steaming function mode of the steam oven;

[0007] Based on the cooking time of the steam oven, determine the moisture exhaust stage where the steam oven is located;

[0008] If the steam oven is in the first moisture exhaust stage, control the air pump and the exhaust fan to operate at corresponding gears based on the temperature detected by the temperature sensor, so as to control the humidity in the inner container to reach the corresponding preset humidity;

[0009] If the steam oven is in the second moisture exhaust stage, control the air pump and the exhaust fan to operate at the highest gear.

[0010] In an embodiment, the steaming function mode includes a normal steaming mode, and both the air pump and the exhaust fan have a low speed gear, a medium speed gear, and a high speed gear; the controlling the air pump and the exhaust fan to operate at corresponding gears based on the temperature detected by the temperature sensor includes:

[0011] If the temperature detected by the temperature sensor is greater than the first preset temperature and less than or equal to the target cooking temperature of the steam oven, control the air pump and the exhaust fan to operate at high speed;

[0012] If the temperature detected by the temperature sensor is greater than or equal to the second preset temperature and less than or equal to the first preset temperature, control the air pump and the exhaust fan to operate at medium speed;

[0013] If the temperature detected by the temperature sensor is less than the second preset temperature, control the air pump and the exhaust fan to operate at low speed.

[0014] In one embodiment, the steam function mode includes an over-temperature steam mode, and both the air pump and the exhaust fan have low speed, medium speed, and high speed; the controlling the air pump and the exhaust fan to operate at corresponding gears based on the temperature detected by the temperature sensor includes:

[0015] If the temperature detected by the temperature sensor is greater than the third preset temperature and less than or equal to the target cooking temperature of the steam oven, control the air pump and the exhaust fan to operate at high speed;

[0016] If the temperature detected by the temperature sensor is greater than or equal to the fourth preset temperature and less than or equal to the third preset temperature, control the air pump and the exhaust fan to operate at medium speed;

[0017] If the temperature detected by the temperature sensor is less than the fourth preset temperature, control the air pump and the exhaust fan to operate at low speed.

[0018] In one embodiment, if the steam oven is in the second moisture exhaust stage, control the air pump and the exhaust fan to operate at the highest gear until the temperature detected by the temperature sensor reaches the fifth preset temperature.

[0019] In one embodiment, if the steam oven is in the second moisture exhaust stage, control the air pump and the exhaust fan to operate at the highest gear until the temperature detected by the temperature sensor reaches the sixth preset temperature.

[0020] In one embodiment, the determining the moisture exhaust stage of the steam oven based on the cooking time of the steam oven includes:

[0021] If the cooking time is greater than or equal to the start moisture exhaust time and less than or equal to the cooking end time, determine that the steam oven is in the first moisture exhaust stage;

[0022] If the cooking time is greater than the cooking end time and less than or equal to the end moisture exhaust time, determine that the steam oven is in the second moisture exhaust stage.

[0023] In one embodiment, the method further includes:

[0024] If the cooking time is less than the starting moisture exhaust time, control the air pump not to operate, and control the exhaust fan to operate at medium speed.

[0025] In one embodiment, the method further includes:

[0026] When the temperature detected by the temperature sensor reaches the fifth preset temperature or the sixth preset temperature, control the air pump not to operate, and control the exhaust fan to operate at low speed.

[0027] In a second aspect, an embodiment of the present invention provides a steam oven, including an inner cavity, an air pump and an exhaust fan communicated with the inner cavity, and a temperature sensor disposed in the inner cavity. The steam oven further includes a controller electrically connected to the air pump, the exhaust fan, and the temperature sensor. The controller executes the steps of the method described in the first aspect.

[0028] In one embodiment, the air pump is communicated with the inner cavity through a hose, and the air pump has a diaphragm structure.

[0029] Compared with the prior art, the technical solution has the following beneficial effects:

[0030] 1. Determine the moisture exhaust stage according to the cooking time of the steam oven, and adopt different moisture exhaust control strategies in different moisture exhaust stages, improving the cooking effect and eliminating the risk of steam hitting the face;

[0031] 2. When the steam oven is in the first moisture exhaust stage, through the coordinated cooperation of the air pump, the exhaust fan and the temperature sensor, dynamically adjust the rotation speed gears of the air pump and the exhaust fan, accurately control the moisture exhaust speed, and achieve a balance between the moisture exhaust speed and the cooking effect of the food; when the steam oven is in the second moisture exhaust stage, control the air pump and the exhaust fan to operate at the highest gear to avoid the risk of steam hitting the face. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic connection diagram of the controller in the steam oven in one embodiment;

[0033] Figure 2 It is a schematic flow diagram of the moisture exhaust control method of the steam oven in one embodiment;

[0034] Figure 3 It is a control flow chart of the moisture exhaust control method of the steam oven in the first exemplary embodiment.

[0035] Wherein, 102, controller; 104, temperature sensor; 106, air pump; 108, exhaust fan. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some examples or embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, the present invention can also be applied to other similar scenarios based on these drawings. Unless obvious from the language context or otherwise stated, the same reference numerals in the drawings represent the same structure or operation.

[0037] As shown in the present invention and the claims, unless the context clearly indicates an exception, words such as "a", "an", "one", and / or "the" are not specifically singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of the clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0038] Although the present invention makes various references to certain modules in the device according to the embodiments of the present invention, however, any number of different modules can be used and run on a computing device and / or a processor. The modules are only illustrative, and different aspects of the device and method can use different modules.

[0039] It should be understood that when a unit or module is described as "connected" or "coupled" to other units, modules or blocks, it may mean a direct connection or coupling, or communicate with other units, modules or blocks, or there may be intermediate units, modules or blocks, unless the context clearly indicates otherwise. The term "and / or" used herein may include any and all combinations of one or more of the related listed items.

[0040] The moisture exhaust control method provided by this application can be applied to the controller of a steam oven. The steam oven may further include an inner cavity, an air pump and an exhaust fan communicated with the inner cavity, and a temperature sensor disposed in the inner cavity.

[0041] Among them, the temperature sensor is used to measure the temperature of the inner cavity, the air pump is used to introduce dry air into the inner cavity, and the exhaust fan is used to discharge the excess gas in the inner cavity when the pressure in the inner cavity is higher than the outside. Both the air pump and the exhaust fan are provided with different speed gears, such as low-speed, medium-speed and high-speed rotation gears. The higher the gear speed, the faster the air pump blows dry air into the inner cavity, and the faster the exhaust fan discharges the air. When both operate at the high-speed gear at the same time, the moisture exhaust speed is the fastest.

[0042] As Figure 1As shown, the controller 102 is electrically connected to the temperature sensor 104, the air pump 106, and the exhaust fan 108, and can collect the temperature data measured by the temperature sensor. The controller can also determine the moisture exhaust stage of the steam oven based on the cooking time of the steam oven. When the steam oven is in the first moisture exhaust stage, control the air pump and the exhaust fan to operate at corresponding gears based on the temperature detected by the temperature sensor to control the humidity in the inner cavity to reach the corresponding preset humidity. When the steam oven is in the second moisture exhaust stage, control the air pump and the exhaust fan to operate at the highest gear.

[0043] In one embodiment, Figure 2 is a flowchart of the moisture exhaust control method of the steam oven according to an embodiment of the present invention. As Figure 1 shown, the process includes the following steps:

[0044] S102: Determine the steaming function mode of the steam oven.

[0045] The steaming function modes of the steam oven include the normal steaming mode and the overheating steaming mode.

[0046] S104: Determine the moisture exhaust stage of the steam oven based on the cooking time of the steam oven.

[0047] Determine the moisture exhaust stage of the steam oven according to the cooking time of the steam oven. The moisture exhaust stages of the steam oven include the first moisture exhaust stage and the second moisture exhaust stage. Among them, the first moisture exhaust stage is in the cooking stage of the steam oven, and the second moisture exhaust stage is in the cooking end stage of the steam oven.

[0048] S106: If the steam oven is in the first moisture exhaust stage, control the air pump and the exhaust fan to operate at corresponding gears based on the temperature detected by the temperature sensor to control the humidity in the inner cavity to reach the corresponding preset humidity.

[0049] S108: If the steam oven is in the second moisture exhaust stage, control the air pump and the exhaust fan to operate at the highest gear.

[0050] Based on the above steps S102 - S108, the dehumidification stage of the steam oven is determined according to the cooking time of the steam oven. Different dehumidification control strategies are adopted in different dehumidification stages, which improves the cooking effect and eliminates the risk of steam hitting the face. In the first dehumidification stage, when the steam oven is in the cooking stage, the controller controls the air pump and the exhaust fan to operate at corresponding gears based on the temperature detected by the temperature sensor, so as to control the humidity in the inner cavity to reach the corresponding preset humidity. Through the coordinated cooperation of the air pump, the exhaust fan and the temperature sensor, the rotation speed gears of the air pump and the exhaust fan are dynamically adjusted to accurately control the dehumidification speed, avoiding the rapid decrease of the humidity and temperature in the inner cavity during the dehumidification process in order to pursue rapid dehumidification, thus affecting the cooking effect of food; In the second dehumidification stage, when the steam oven is in the cooking end stage, the controller controls the air pump and the exhaust fan to operate at the highest gear. At this time, the dehumidification speed is the fastest, realizing rapid dehumidification of the steam oven and avoiding the risk of steam hitting the face when opening the door of the steam oven at the end of the cooking stage.

[0051] In an embodiment, the determining the dehumidification stage of the steam oven based on the cooking time of the steam oven includes: if the cooking time is greater than or equal to the start dehumidification time and less than or equal to the cooking end time, it is determined that the steam oven is in the first dehumidification stage; if the cooking time is greater than the cooking end time and less than or equal to the end dehumidification time, it is determined that the steam oven is in the second dehumidification stage.

[0052] Specifically, the cooking end time t0, the start dehumidification time t1, and the end dehumidification time t2 are set, where the cooking end time t0 is greater than the start dehumidification time t1 and less than the end dehumidification time t2 (t1 < t0 < t2).

[0053] The controller makes a judgment according to the cooking time t. When the start dehumidification moment t1 < cooking time t ≤ cooking end time t0, it is determined that the steam oven is in the first dehumidification stage, and the first dehumidification stage is in the cooking stage of the steam oven; when the cooking end time t0 < cooking time t ≤ end dehumidification time t2, it is determined that the steam oven is in the second dehumidification stage, and the second dehumidification stage is in the cooking end stage of the steam oven.

[0054] In one embodiment, both the air pump and the exhaust fan have low speed, medium speed and high speed gears; when the steaming function mode is in the normal steaming mode (the maximum temperature is 100 °C or below) and in the first moisture exhaust stage, controlling the air pump and the exhaust fan to operate at corresponding gears based on the temperature detected by the temperature sensor specifically includes the following: If the temperature detected by the temperature sensor is greater than the first preset temperature and less than or equal to the target cooking temperature of the steam oven, then control the air pump and the exhaust fan to operate at high speed; if the temperature detected by the temperature sensor is greater than or equal to the second preset temperature and less than or equal to the first preset temperature, then control the air pump and the exhaust fan to operate at medium speed; if the temperature detected by the temperature sensor is less than the second preset temperature, then control the air pump and the exhaust fan to operate at low speed.

[0055] Specifically, set the target cooking temperature T0, the first preset temperature T1, and the second preset temperature T2 of the steam oven. Among them, the first preset temperature T1 is greater than the second preset temperature T2 and less than the target cooking temperature T0 (T2 < T1 < T0).

[0056] The controller reads the temperature T detected by the temperature sensor and makes a judgment based on the temperature T detected by the temperature sensor. If the first preset temperature T1 < the temperature T detected by the temperature sensor ≤ the target cooking temperature T0, then control the air pump and the exhaust fan to operate at high speed; if the second preset temperature T2 < the temperature T detected by the temperature sensor ≤ the first preset temperature T1, then control the air pump and the exhaust fan to operate at medium speed, and if the temperature T detected by the temperature sensor < the second preset temperature T2, then control the air pump and the exhaust fan to operate at low speed.

[0057] Among them, the first preset temperature T1 and the second preset temperature T2 are set according to the actual application scenario, and the embodiments of the present application do not make specific limitations.

[0058] Preferably, the first preset temperature T1 can be set to T0 - 5 °C, and the second preset temperature T2 can be set to T0 - 10 °C.

[0059] Since the humidity in the inner cavity of the steam oven is affected by the temperature of the inner cavity, in this embodiment, the controller dynamically adjusts the rotation speed gears of the air pump and the exhaust fan according to the temperature of the inner cavity detected by the temperature sensor. When the temperature of the inner cavity is relatively high, the humidity is also relatively high. Therefore, control the air pump and the exhaust fan to have a relatively high rotation speed gear for moisture exhaust to achieve rapid moisture exhaust; when the humidity in the inner cavity is relatively low, control the air pump and the exhaust fan to have a relatively low rotation speed gear for moisture exhaust, so as to accurately control the moisture exhaust speed.

[0060] In one embodiment, both the air pump and the exhaust fan have low-speed, medium-speed, and high-speed gears; when the steaming function mode is in the over-temperature steaming mode (the maximum temperature is 105 °C or above) and in the first moisture exhaust stage, controlling the air pump and the exhaust fan to operate at corresponding gears based on the temperature detected by the temperature sensor specifically includes the following: If the temperature detected by the temperature sensor is greater than the third preset temperature and less than or equal to the target cooking temperature of the steam oven, then control the air pump and the exhaust fan to operate at high speed; if the temperature detected by the temperature sensor is greater than or equal to the fourth preset temperature and less than or equal to the third preset temperature, then control the air pump and the exhaust fan to operate at medium speed; if the temperature detected by the temperature sensor is less than the fourth preset temperature, then control the air pump and the exhaust fan to operate at low speed.

[0061] Specifically, set the target cooking temperature T0, the third preset temperature T3, and the fourth preset temperature T4 of the steam oven, where T4 < T3 < T0.

[0062] The controller reads the temperature T detected by the temperature sensor and makes a judgment based on the temperature T detected by the temperature sensor. If the third preset temperature T3 < the temperature T detected by the temperature sensor ≤ the target cooking temperature T0, then control the air pump and the exhaust fan to operate at high speed; if the fourth preset temperature T4 < the temperature T detected by the temperature sensor ≤ the third preset temperature T3, then control the air pump and the exhaust fan to operate at medium speed, and if the temperature T detected by the temperature sensor < the fourth preset temperature T4, then control the air pump and the exhaust fan to operate at low speed.

[0063] Among them, the third preset temperature T3 and the fourth preset temperature T4 are set according to the actual application scenario, and the embodiments of the present application do not make specific limitations.

[0064] Preferably, the third preset temperature T3 can be set to T0 - 10 °C, and the fourth preset temperature T4 can be set to T0 - 20 °C.

[0065] In one embodiment, when the steam oven is in the normal steaming mode and in the second moisture exhaust stage, then control the air pump and the exhaust fan to operate at the highest gear until the temperature detected by the temperature sensor reaches the fifth preset temperature T5.

[0066] Preferably, the fifth preset temperature T5 can be set to T0 - 30 °C.

[0067] Furthermore, when the temperature T detected by the temperature sensor reaches the fifth preset temperature T5, then control the air pump not to operate and control the exhaust fan to operate at low speed.

[0068] Specifically, when the temperature T detected by the temperature sensor drops to the fifth preset temperature T5, the controller controls the air pump not to operate and controls the exhaust fan to operate at a low speed. If the temperature T detected by the temperature sensor is higher than the fifth preset temperature T5, the controller continues to control the air pump and the exhaust fan to operate at the highest gear until the temperature detected by the temperature sensor reaches the fifth preset temperature T5.

[0069] In an embodiment, when the steam oven is in the over-temperature steaming mode and in the second moisture-exhausting stage, the controller controls the air pump and the exhaust fan to operate at the highest gear until the temperature detected by the temperature sensor reaches the sixth preset temperature T6.

[0070] Preferably, the sixth preset temperature T6 can be set to T0 - 40°C.

[0071] It should be emphasized that compared with the ordinary steaming mode, the temperature in the inner cavity of the steam oven is higher, the air pressure is greater, and the temperature fluctuation is greater in the over-temperature steaming mode. Therefore, the interval of temperature feedback is larger than that in the ordinary steaming mode. That is, the temperature differences between the set third preset temperature T3, fourth preset temperature T4, and sixth preset temperature T6 are larger than the temperature differences between the first preset temperature T1, second preset temperature T2, and fifth preset temperature T5.

[0072] Furthermore, when the temperature T detected by the temperature sensor reaches the sixth preset temperature T6, the controller controls the air pump not to operate and controls the exhaust fan to operate at a low speed.

[0073] Specifically, when the temperature T detected by the temperature sensor drops to the sixth preset temperature T6, the controller controls the air pump not to operate and controls the exhaust fan to operate at a low speed. If the temperature T detected by the temperature sensor is higher than the sixth preset temperature T6, the controller continues to control the air pump and the exhaust fan to operate at the highest gear until the temperature detected by the temperature sensor reaches the sixth preset temperature T6.

[0074] In an embodiment, the moisture-exhausting control method of the steam oven further includes: when the cooking time t is less than the starting moisture-exhausting time t1, the controller controls the air pump not to operate and controls the exhaust fan to operate at a medium speed.

[0075] Figure 3 It is the control flow chart when the steam oven is in the steaming function in the first exemplary embodiment. As Figure 2As shown, the steaming function of the steam oven is started. At this time, the air pump does not run, and the exhaust fan runs at a low speed. Set the cooking end time t0, the start dehumidification time t1, and the end dehumidification time t2; set the target cooking temperature T0 of the steam oven, the first preset temperature (T0 - 5°C), the second preset temperature (T0 - 10°C), and the fifth preset temperature (T0 - 30°C) in the normal steaming mode, and the third preset temperature (T0 - 10°C), the fourth preset temperature (T0 - 20°C), and the sixth preset temperature (T0 - 40°C) in the over-temperature steaming mode.

[0076] Judge whether the steaming function of the steam oven is in the normal steaming mode or the over-temperature steaming mode.

[0077] When the steam oven is in the normal steaming mode, judge according to the cooking time t of the steam oven. When the cooking time t < the start dehumidification time t1, it means that the steam oven has not started dehumidification yet. At this time, control the air pump not to run, and control the exhaust fan to run at a medium speed. When the start dehumidification moment t1 < the cooking time t ≤ the cooking end time t0, at this time, the steam oven is in the first dehumidification stage, the steam oven starts dehumidification, the air pump starts to run at a high speed, and judge the temperature T detected by the temperature sensor. When the temperature T detected by the temperature sensor < the second preset temperature (T0 - 10°C), control the air pump and the exhaust fan to run at a low speed; when the second preset temperature (T0 - 10°C) < the temperature T detected by the temperature sensor ≤ the first preset temperature (T0 - 5°C), control the air pump and the exhaust fan to run at a medium speed; when the first preset temperature (T0 - 5°C) < the temperature T detected by the temperature sensor ≤ the target cooking temperature T0, control the air pump and the exhaust fan to run at a high speed. When the cooking end time t0 < the cooking time t ≤ the end dehumidification time t2, at this time, the steam oven is in the cooking end stage and enters the second dehumidification stage, control the air pump and the exhaust fan to run at the highest gear, and judge the temperature T detected by the temperature sensor. When the temperature T detected by the temperature sensor < the fifth preset temperature (T0 - 30°C), control the air pump not to run, and control the exhaust fan to run at a low speed.

[0078] When the steam oven is in the over-temperature steaming mode, it is judged according to the cooking time t of the steam oven. When the cooking time t < the start dehumidification time t1, it means that the steam oven has not started dehumidification yet. At this time, control the air pump not to operate, and control the exhaust fan to operate at medium speed. When the start dehumidification time t1 < the cooking time t ≤ the cooking end time t0, at this time the steam oven is in the first dehumidification stage, the steam oven starts dehumidification, the air pump starts to operate at high speed, and the temperature T detected by the temperature sensor is judged. When the temperature T detected by the temperature sensor < the fourth preset temperature (T0 - 20°C), control the air pump and the exhaust fan to operate at low speed; when the fourth preset temperature (T0 - 20°C) < the temperature T detected by the temperature sensor ≤ the third preset temperature (T0 - 10°C), control the air pump and the exhaust fan to operate at medium speed; when the third preset temperature (T0 - 10°C) < the temperature T detected by the temperature sensor ≤ the target cooking temperature T0, control the air pump and the exhaust fan to operate at high speed; when the cooking end time t0 < the cooking time t ≤ the end dehumidification time t2, at this time the steam oven is in the cooking end stage and enters the second dehumidification stage, control the air pump and the exhaust fan to operate at the highest gear, and judge the temperature T detected by the temperature sensor. When the temperature T detected by the temperature sensor < the sixth preset temperature (T0 - 40°C), control the air pump not to operate, and control the exhaust fan to operate at low speed.

[0079] It should be understood that although the steps in the above flowcharts are shown in sequence according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless there is a clear indication in this article, the execution of these steps has no strict order limit, and these steps can be executed in other orders. Moreover, at least a part of the steps in the above flowcharts may include multiple steps or multiple stages. These steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be executed alternately or alternately with at least a part of other steps or steps in other steps.

[0080] In an embodiment, a steam oven is proposed. The steam oven includes an inner container, an air pump and an exhaust fan communicated with the inner container, and a temperature sensor arranged in the inner container. It also includes a controller electrically connected to the air pump, the exhaust fan, and the temperature sensor. The controller executes the steps of the dehumidification control method of the steam oven in any of the above embodiments.

[0081] Among them, the air pump is arranged in the area with a lower temperature outside the inner container (usually the ambient temperature is lower than 85°C). The dry air outside the inner container is introduced into the inner container through the air pump. After the dry air is quickly mixed with the moisture, it is discharged outside the inner container under the action of the exhaust fan, realizing the function of reducing the humidity of the inner container.

[0082] The controller determines the moisture exhaust stage of the steam oven according to the cooking time of the steam oven. In the first moisture exhaust stage, the controller controls the air pump and the exhaust fan to operate at corresponding gears based on the temperature detected by the temperature sensor, so as to control the humidity in the inner cavity to reach the corresponding preset humidity. Through the coordinated cooperation of the air pump, the exhaust fan and the temperature sensor, the rotation speed gears of the air pump and the exhaust fan are dynamically adjusted, and the moisture exhaust speed is accurately controlled, avoiding the rapid decrease of the humidity and temperature in the inner cavity during the moisture exhaust process in order to pursue rapid moisture exhaust, which affects the cooking effect of food. In the second moisture exhaust stage, the controller controls the air pump and the exhaust fan to operate at the highest gear, and at this time the moisture exhaust speed is the fastest, realizing rapid moisture exhaust of the steam oven and avoiding the risk of steam hitting the face when opening the door of the steam oven at the end of the cooking stage.

[0083] In one embodiment, the air pump is connected to the inner cavity through a hose, and the air pump has a diaphragm structure.

[0084] The air pump is directly connected to the inner cavity through a hose. Since the steam oven omits the air valve, the cost is greatly reduced, and the air pump has a diaphragm structure, avoiding the risk of steam backflow.

[0085] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, storage, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memories. The non-volatile memory can include a read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. The volatile memory can include a random access memory (RAM) or an external cache memory. By way of illustration and not limitation, RAM can be in various forms, such as a static random access memory (SRAM) or a dynamic random access memory (DRAM).

[0086] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0087] The above embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A moisture exhaust control method for a steam oven, the steam oven comprising an inner cavity, an air pump and an exhaust fan communicated with the inner cavity, and a temperature sensor disposed in the inner cavity, characterized in that, The method is applied to the steaming function mode of the steam oven, and the method includes: Determine the steaming function mode of the steam oven; Determine the moisture exhaust stage of the steam oven based on the cooking time of the steam oven; If the steam oven is in the first moisture exhaust stage, control the air pump and the exhaust fan to operate at corresponding gears based on the temperature detected by the temperature sensor, so as to control the humidity in the inner cavity to reach the corresponding preset humidity; If the steam oven is in the second moisture exhaust stage, control the air pump and the exhaust fan to operate at the highest gear.

2. The method according to claim 1, wherein The steaming function mode includes the normal steaming mode, and both the air pump and the exhaust fan have a low speed gear, a medium speed gear, and a high speed gear; the controlling the air pump and the exhaust fan to operate at corresponding gears based on the temperature detected by the temperature sensor includes: If the temperature detected by the temperature sensor is greater than the first preset temperature and less than or equal to the target cooking temperature of the steam oven, control the air pump and the exhaust fan to operate at the high speed gear; If the temperature detected by the temperature sensor is greater than or equal to the second preset temperature and less than or equal to the first preset temperature, control the air pump and the exhaust fan to operate at the medium speed gear; If the temperature detected by the temperature sensor is less than the second preset temperature, control the air pump and the exhaust fan to operate at the low speed gear.

3. The method according to claim 1, characterized in that, The steaming function mode includes the over-temperature steaming mode, and both the air pump and the exhaust fan have a low speed gear, a medium speed gear, and a high speed gear; the controlling the air pump and the exhaust fan to operate at corresponding gears based on the temperature detected by the temperature sensor includes: If the temperature detected by the temperature sensor is greater than the third preset temperature and less than or equal to the target cooking temperature of the steam oven, control the air pump and the exhaust fan to operate at the high speed gear; If the temperature detected by the temperature sensor is greater than or equal to the fourth preset temperature and less than or equal to the third preset temperature, control the air pump and the exhaust fan to operate at the medium speed gear; If the temperature detected by the temperature sensor is less than the fourth preset temperature, control the air pump and the exhaust fan to operate at the low speed gear.

4. The method according to claim 2, wherein If the steam oven is in the second moisture exhaust stage, control the air pump and the exhaust fan to operate at the highest gear until the temperature detected by the temperature sensor reaches the fifth preset temperature.

5. The method according to claim 3, wherein If the steam oven is in the second moisture exhaust stage, control the air pump and the exhaust fan to operate at the highest gear until the temperature detected by the temperature sensor reaches the sixth preset temperature.

6. The method according to claim 1, wherein The determining the moisture exhaust stage of the steam oven based on the cooking time of the steam oven includes: If the cooking time is greater than or equal to the start moisture exhaust time and less than or equal to the cooking end time, determine that the steam oven is in the first moisture exhaust stage; If the cooking time is greater than the cooking end time and less than or equal to the end moisture exhaust time, determine that the steam oven is in the second moisture exhaust stage.

7. The method according to claim 6, wherein The method further includes: If the cooking time is less than the start moisture exhaust time, control the air pump not to operate and control the exhaust fan to operate at the medium speed gear.

8. The method according to claim 4 or 5, characterized in that, The method further includes: When the temperature detected by the temperature sensor reaches the fifth preset temperature or the sixth preset temperature, the air pump is controlled not to operate, and the exhaust fan is controlled to operate at a low speed.

9. An oven with steam function, comprising an inner container, an air pump and an exhaust fan communicated with the inner container, and a temperature sensor arranged in the inner container, wherein, It further includes a controller electrically connected to the air pump, the exhaust fan, and the temperature sensor, and the controller executes the steps of the method according to any one of claims 1 to 8.

10. The steam oven according to claim 9, characterized in that, The air pump is communicated with the inner container through a hose, and the air pump has a diaphragm structure.

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