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 communicated with the inner container, an air heater and a temperature sensor, the air heater and the temperature sensor are arranged in the inner container, the method is applied to a steaming function mode of the steaming oven, and the method comprises the steps that the steaming function mode of the steaming oven is determined; if the cooking time is larger than or equal to the moisture removal starting time and smaller than or equal to the cooking ending time, the air pump and the air heater are controlled to run to the 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; if the cooking time is larger than the cooking ending time and smaller than or equal to the humidity elimination ending time, the air pump and the air heater are controlled to operate at the highest gear, according to the cooking time of the steaming oven, different humidity elimination control strategies are carried out, the humidity elimination speed is accurately controlled, the cooking effect is improved, and the risk that steam faces the face is eliminated.

Description

Technical Field

[0001] The present application relates to the field of cooking appliances, and in particular 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 a hot air blower are used to exhaust moisture inside the steam oven. However, in order to pursue rapid moisture exhaust, the rotational speed of the air pump or the hot air blower is usually fixed at a high gear, resulting in a rapid decrease in the humidity and temperature inside the inner cavity during the moisture exhaust process, and the moisture exhaust accuracy cannot be precisely controlled, thereby 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, in order to solve the above technical problems, it is necessary to provide a moisture exhaust control method and a steam oven for a steam oven.

[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 cavity, an air pump communicated with the inner cavity, a hot air blower and a temperature sensor disposed in the inner cavity. 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] 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, control the air pump and the hot air blower to run to corresponding gears based on the temperature detected by the temperature sensor, so as to control the humidity in the inner cavity to reach a corresponding preset humidity;

[0008] If the cooking time is greater than the cooking end time and less than or equal to the end moisture exhaust time, control the air pump and the hot air blower to run at the highest gear.

[0009] In an embodiment, the steaming function mode includes a normal steaming mode. The air pump and the hot air blower both have a low speed gear, a medium speed gear and a high speed gear. The controlling the air pump and the hot air blower to run to corresponding gears based on the temperature detected by the temperature sensor includes:

[0010] If the temperature detected by the temperature sensor is greater than a first preset temperature and less than or equal to the target cooking temperature of the steam oven, control the air pump and the hot air blower to run at the high speed gear;

[0011] 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 hot air blower to operate at medium speed;

[0012] If the temperature detected by the temperature sensor is less than the second preset temperature, control the air pump and the hot air blower to operate at low speed.

[0013] In one embodiment, the steaming function mode includes an over-temperature steaming mode, and both the air pump and the hot air blower have low speed, medium speed and high speed; controlling the air pump and the hot air blower to operate at corresponding gears based on the temperature detected by the temperature sensor includes:

[0014] 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 to operate at medium speed and control the hot air blower to operate at high speed;

[0015] 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 hot air blower to operate at medium speed;

[0016] If the temperature detected by the temperature sensor is less than the fourth preset temperature, control the air pump to operate at low speed and control the hot air blower to operate at medium speed.

[0017] In one embodiment, if the cooking time is greater than the cooking end time and less than or equal to the end moisture exhaust time, control the air pump and the hot air blower to operate at the highest gear until the temperature detected by the temperature sensor reaches the fifth preset temperature.

[0018] In one embodiment, if the cooking time is greater than the cooking end time and less than or equal to the end moisture exhaust time, control the air pump and the hot air blower to operate at the highest gear until the temperature detected by the temperature sensor reaches the sixth preset temperature.

[0019] In one embodiment, the method further includes:

[0020] If the cooking time is less than the start moisture exhaust time, control the air pump and the hot air blower not to operate.

[0021] In one embodiment, the method further includes:

[0022] 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 hot air blower to operate at low speed.

[0023] In a second aspect, an embodiment of the present invention provides a steam oven, which includes an inner container, an air pump communicated with the inner container, a hot air blower and a temperature sensor disposed in the inner container, and further includes a controller electrically connected to the air pump, the hot air blower and the temperature sensor. The controller executes the steps of the method described in the first aspect above.

[0024] In one embodiment, the air pump is communicated with the inner container through a hose.

[0025] In one embodiment, the air pump has a diaphragm structure.

[0026] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0027] By judging the cooking time of the steam oven, when the cooking time is greater than or equal to the start dehumidification time and less than or equal to the cooking end time, the air pump and the hot air blower are controlled 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. Through the coordinated cooperation of the air pump, the hot air blower and the temperature sensor, the rotation speed gears of the air pump and the hot air blower are dynamically adjusted, and the dehumidification speed is accurately controlled to achieve a balance between the dehumidification speed and the food cooking effect; when the cooking time is greater than the cooking end time and less than or equal to the end dehumidification time, the air pump and the hot air blower are controlled to operate at the highest gear to perform rapid dehumidification in the cooking end stage, avoiding the risk of steam hitting the face. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic flowchart of the dehumidification control method of the steam oven in one embodiment;

[0029] Figure 2 It is a control flowchart of the steam oven in the steaming function in the first exemplary embodiment;

[0030] Figure 3 It is a schematic connection diagram of the controller in the steam oven in one embodiment.

[0031] Wherein, 102, controller; 104, temperature sensor; 106, air pump; 108, hot air blower. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for the description of the embodiments will be briefly introduced below. 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 figures represent the same structure or operation.

[0033] As shown in the present invention and the claims, unless the context clearly indicates otherwise, 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.

[0034] 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.

[0035] 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 directly connected or coupled, or communicating 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.

[0036] In one embodiment, Figure 1 is a flowchart of the moisture exhaust control method of the steam oven according to the embodiment of the present invention. The steam oven includes an inner cavity, an air pump communicated with the inner cavity, a hot air blower and a temperature sensor arranged in the inner cavity, and the temperature sensor is used to measure the temperature of the inner cavity. The such as Figure 1 shown, this process includes the following steps:

[0037] S102: Determine the steaming function mode of the steam oven.

[0038] The steaming function modes of the steam oven include the normal steaming mode and the overheating steaming mode. The maximum temperature for cooking in the normal steaming mode is 100 °C or below, and the maximum temperature for cooking in the overheating steaming mode is 105 °C or above.

[0039] S104: 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, then control the air pump and the hot air blower 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.

[0040] Specifically, set the cooking end time t0, the start moisture exhaust time t1, and the end moisture exhaust time t2, where the cooking end time t0 is greater than the start moisture exhaust time t1 and less than the end moisture exhaust time t2, that is, t1 < t0 < t2.

[0041] Judge the cooking time t. If the cooking time t is greater than or equal to the start dehumidification time t1 and less than or equal to the cooking end time t0, that is, t1 ≤ t ≤ t0, at this time, the steam oven is in the cooking stage, and the controller controls the air pump and the hot air blower 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.

[0042] S106: If the cooking time is greater than the cooking end time and less than or equal to the end dehumidification time, then control the air pump and the hot air blower to operate at the highest gear.

[0043] Judge the cooking time t. If the cooking time t is greater than the cooking end time t0 and less than or equal to the end dehumidification time t2, that is, t0 < t ≤ t2, at this time, the steam oven is in the cooking end stage, and the controller controls the air pump and the hot air blower to operate at the highest gear for dehumidification.

[0044] Based on the above steps S102 - S106, different dehumidification control strategies are determined according to the cooking time of the steam oven, which improves the cooking effect and eliminates the risk of steam hitting the face. When the cooking time is greater than or equal to the start dehumidification time and less than or equal to the cooking end time, then based on the temperature detected by the temperature sensor, control the air pump and the hot air blower to operate at corresponding gears, so as to control the humidity in the inner container to reach the corresponding preset humidity. Through the coordinated cooperation of the air pump, the hot air blower and the temperature sensor, dynamically adjust the speed gears of the air pump and the hot air blower, and accurately control the dehumidification speed, avoiding the rapid decline of the humidity and temperature in the inner container during the dehumidification process in order to pursue rapid dehumidification, thus affecting the cooking effect of food and improving the cooking effect; when the cooking time is greater than the cooking end time and less than or equal to the end dehumidification time, then control the air pump and the hot air blower 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 cooking end stage.

[0045] In an embodiment, both the air pump and the hot air blower have a low speed gear, a medium speed gear and a high speed gear; when the steaming function mode is in the normal steaming mode, the controlling the air pump and the hot air blower 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 hot air blower 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, then control the air pump and the hot air blower to operate at the medium speed gear; if the temperature detected by the temperature sensor is less than the second preset temperature, then control the air pump and the hot air blower to operate at the low speed gear.

[0046] 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, that is, T2 < T1 < T0.

[0047] The first preset temperature T1 and the second preset temperature T2 can be set by the staff according to the actual application scenario, and the embodiments of the present application do not make specific limitations.

[0048] The controller judges the temperature T detected by the temperature sensor, and dynamically controls the gears of the air pump and the hot air blower according to the inner tank temperature T during the cooking process, so as to accurately control the moisture discharge speed. Specifically, 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 hot air blower to run at a 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 hot air blower to run at a medium speed, and if the temperature T detected by the temperature sensor < the second preset temperature T2, then control the air pump and the hot air blower to run at a low speed.

[0049] Since the humidity of the inner tank of the steam oven is affected by the temperature of the inner tank, when the temperature of the inner tank is relatively high, its humidity is also relatively high. In this embodiment, the controller dynamically adjusts the rotation speed gears of the air pump and the hot air blower according to the temperature of the inner tank detected by the temperature sensor, so as to accurately control the moisture discharge speed. Divided into three temperature ranges according to the target cooking temperature T0, the first preset temperature T1, and the second preset temperature T2. When the temperature T detected by the temperature sensor < the second preset temperature T2, the inner tank temperature is relatively low and the humidity is also low at this time, and the air pump and the hot air blower are controlled to have a relatively small rotation speed gear for moisture discharge; when the second preset temperature T2 < the temperature T detected by the temperature sensor ≤ the first preset temperature T1, the inner tank temperature is relatively high and the humidity is also high at this time, then control the air pump and the hot air blower to run at a medium speed for moisture discharge; if the first preset temperature T1 < the temperature T detected by the temperature sensor ≤ the target cooking temperature T0, the inner tank temperature is the highest and the humidity is also the highest at this time, then control the air pump and the hot air blower to run at a high speed for rapid moisture discharge.

[0050] In one embodiment, both the air pump and the hot air blower have a low speed gear, a medium speed gear, and a high speed gear; when the steaming function mode is in the over-temperature steaming mode, controlling the operation of the air pump and the hot air blower 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 a third preset temperature and less than or equal to the target cooking temperature of the steam oven, then control the air pump to operate at the medium speed gear and control the hot air blower to operate at the high speed gear; if the temperature detected by the temperature sensor is greater than or equal to a fourth preset temperature and less than or equal to the third preset temperature, then control the air pump and the hot air blower to operate at the medium speed gear; if the temperature detected by the temperature sensor is less than the fourth preset temperature, then control the air pump to operate at the low speed gear and control the hot air blower to operate at the medium speed gear.

[0051] Specifically, set the target cooking temperature T0, the third preset temperature T3, and the fourth preset temperature T4 of the steam oven. Among them, the third preset temperature T3 is greater than the fourth preset temperature T4 and less than the target cooking temperature T0, that is, T4 < T3 < T0.

[0052] The third preset temperature T3 and the fourth preset temperature T4 are set by the staff according to the actual application scenario, and the embodiments of the present application do not make specific limitations.

[0053] The controller judges the temperature T detected by the temperature sensor, and dynamically controls the gears of the air pump and the hot air blower according to the inner cavity temperature T during the cooking process, so as to accurately control the moisture discharge speed. Specifically, if the third preset temperature T3 < the temperature T detected by the temperature sensor ≤ the target cooking temperature T0, then control the air pump to operate at the medium speed gear and control the hot air blower to operate at the high speed gear; 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 hot air blower to operate at the medium speed gear, and if the temperature T detected by the temperature sensor < the fourth preset temperature T4, then control the air pump to operate at the low speed gear and control the hot air blower to operate at the medium speed gear.

[0054] Preferably, in the above embodiment, the first preset temperature T1 can be set to T0 - 10°C, and the second preset temperature T2 can be set to T0 - 20°C; the third preset temperature T3 can be set to T0 - 15°C, and the fourth preset temperature T4 can be set to T0 - 30°C.

[0055] In one embodiment, when the steam oven is in the normal steaming mode, if the cooking time is greater than the cooking end time and less than or equal to the end moisture discharge time, then control the air pump and the hot air blower to operate at the highest gear until the temperature detected by the temperature sensor reaches the fifth preset temperature.

[0056] Specifically, when the cooking time t is greater than the cooking end time t0 and less than or equal to the end moisture exhaust time t2, that is, t0 < t ≤ t2, at this time the cooking ends, and the air pump and the hot air blower are controlled to operate at the highest gear until the temperature detected by the temperature sensor reaches the fifth preset temperature T5, so as to quickly exhaust moisture from the steam oven and avoid the risk of steam hitting the face when opening the door of the steam oven at the end of the cooking stage.

[0057] Further, when the steam oven is in the ordinary steaming mode, if the temperature T detected by the temperature sensor reaches the fifth preset temperature T5, the air pump is controlled not to operate, and the hot air blower is controlled to operate at a low speed.

[0058] Specifically, when the temperature T detected by the temperature sensor drops to the fifth preset temperature T5, that is, T < T5, the controller controls the air pump not to operate and controls the hot air blower to operate at a low speed.

[0059] Preferably, the fifth preset temperature T5 can be set to T0 - 30°C.

[0060] In an embodiment, when the steam oven is in the over-temperature steaming mode, if the cooking time is greater than the cooking end time and less than or equal to the end moisture exhaust time, the air pump and the hot air blower are controlled to operate at the highest gear until the temperature detected by the temperature sensor reaches the sixth preset temperature.

[0061] Specifically, when the cooking time t is greater than the cooking end time t0 and less than or equal to the end moisture exhaust time t2, that is, t0 < t ≤ t2, at this time the cooking ends, and the air pump and the hot air blower are controlled to operate at the highest gear until the temperature detected by the temperature sensor reaches the sixth preset temperature T6, so as to quickly exhaust moisture from the steam oven and avoid the risk of steam hitting the face when opening the door of the steam oven at the end of the cooking stage.

[0062] Further, when the steam oven is in the over-temperature steaming mode, if the temperature T detected by the temperature sensor reaches the sixth preset temperature T6, the air pump is controlled not to operate, and the hot air blower is controlled to operate at a low speed.

[0063] Specifically, when the temperature T detected by the temperature sensor drops to the sixth preset temperature T6, that is, T < T6, the controller controls the air pump not to operate and controls the hot air blower to operate at a low speed.

[0064] Preferably, the sixth preset temperature T6 can be set to T0 - 40°C.

[0065] In one embodiment, the moisture exhaust control method of the steam oven further includes: if the cooking time t is less than the start moisture exhaust time t1 and moisture exhaust has not started at this stage, the controller controls the air pump and the hot air blower not to operate.

[0066] Figure 2 It is the control flowchart when the steam oven is in the steaming function in the first exemplary embodiment. As Figure 2 shown, when the steaming function of the steam oven is started, the air pump and the hot air blower do not operate at this time. Set the cooking end time t0, the start moisture exhaust time t1, and the end moisture exhaust time t2; set the target cooking temperature T0 of the steam oven, the first preset temperature (T0 - 10°C), the second preset temperature (T0 - 20°C), and the fifth preset temperature (T0 - 30°C) in the normal steaming mode, and the third preset temperature (T0 - 15°C), the fourth preset temperature (T0 - 30°C), and the sixth preset temperature (T0 - 40°C) in the over-temperature steaming mode.

[0067] Judge whether the steaming function of the steam oven is in the normal steaming mode or the over-temperature steaming mode.

[0068] 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 moisture exhaust time t1, it means that the steam oven has not started moisture exhaust yet, and at this time, control the air pump and the hot air blower not to operate. When the start moisture exhaust moment t1 ≤ cooking time t ≤ cooking end time t0, the steam oven starts moisture exhaust, and the air pump and the hot air blower start to operate at 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 - 20°C), control the air pump and the hot air blower to operate at low speed; when the second preset temperature (T0 - 20°C) ≤ temperature T detected by the temperature sensor ≤ the first preset temperature (T0 - 10°C), control the air pump and the hot air blower to operate at medium speed; when the first preset temperature (T0 - 10°C) < temperature T detected by the temperature sensor ≤ the target cooking temperature T0, control the air pump and the hot air blower to operate at high speed. When the cooking end time t0 < cooking time t ≤ end moisture exhaust time t2, at this time the steam oven is in the cooking end stage, control the air pump and the hot air blower 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 fifth preset temperature (T0 - 30°C), control the air pump not to operate, and control the hot air blower to operate at low speed.

[0069] 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 moisture discharge start time t1, it means that the steam oven has not started to discharge moisture yet. At this time, control the air pump and the hot air blower not to operate. When the moisture discharge start time t1 ≤ the cooking time t ≤ the cooking end time t0, the steam oven starts to discharge moisture, control the air pump to operate in the medium speed gear, and the hot air blower to operate in the high speed gear, and judge the temperature T detected by the temperature sensor. When the temperature T detected by the temperature sensor < the fourth preset temperature (T0 - 30 °C), control the air pump to operate in the low speed gear and the hot air blower to operate in the medium speed gear; when the fourth preset temperature (T0 - 30 °C) ≤ the temperature T detected by the temperature sensor ≤ the third preset temperature (T0 - 15 °C), control the air pump and the hot air blower to operate in the medium speed gear; when the third preset temperature (T0 - 15 °C) < the temperature T detected by the temperature sensor ≤ the target cooking temperature T0, control the air pump to operate in the medium speed gear and the hot air blower to operate in the high speed gear. When the cooking end time t0 < the cooking time t ≤ the end moisture discharge time t2, at this time the steam oven is in the cooking end stage, control the air pump and the hot air blower 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 hot air blower to operate in the low speed gear.

[0070] When the steaming function mode is over-temperature steaming, the temperature in the inner cavity is higher, the air pressure is greater, the content of high-temperature steam is lower, and the hot air in the inner cavity is mixed with the steam, and the temperature fluctuates greatly during moisture discharge. When the steaming function mode is normal steaming, the inner cavity is filled with high-temperature steam, and the temperature fluctuates less during moisture discharge.

[0071] In this embodiment, in the over-temperature steaming mode, to avoid too much dry cold air entering and causing the temperature field in the inner cavity to drop faster, which affects the cooking effect of the food. When the steam oven starts to discharge moisture, the air pump gear in the over-temperature steaming mode is lower than that in the normal steaming mode. The air pump operates in the medium speed gear in the over-temperature steaming mode, and the air pump operates in the high speed gear in the normal steaming mode. In the normal steaming mode, when 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 to operate in the high speed gear; in the over-temperature steaming mode, when 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 to operate in the medium speed gear.

[0072] It should be understood that although the various steps in the above flowcharts are shown sequentially according to the indication of the arrows, these steps are not necessarily executed sequentially in the order indicated by the arrows. Unless specifically stated in this document, there is no strict order restriction for the execution of these steps, 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 in turn with at least a part of other steps or steps or stages in other steps.

[0073] In one embodiment, a steam oven is provided. The steam oven includes an inner cavity, an air pump communicated with the inner cavity, a hot air blower and a temperature sensor disposed in the inner cavity.

[0074] As Figure 3 shown, the steam oven further includes a controller electrically connected to the air pump, the hot air blower, and the temperature sensor. The controller executes the steps of the method described in any of the above embodiments.

[0075] Among them, the temperature sensor is used to measure the temperature of the inner cavity in real time. The air pump is used to introduce dry air into the inner cavity. The hot air blower is used to mix the hot steam and dry cold air in the inner cavity, and on the other hand, make the temperature field in different regions inside the inner cavity more uniform. The air pump is disposed in a region with a lower temperature outside the inner cavity (usually the ambient temperature is lower than 85°C). The dry air outside the inner cavity is introduced into the inner cavity through the air pump. Under the action of the hot air blower, the dry air and the moisture are quickly mixed, and then discharged to the outside of the inner cavity through the exhaust port of the inner cavity and the exhaust heat dissipation channel, realizing the function of reducing the humidity of the inner cavity.

[0076] Both the air pump and the hot air blower are provided with 3 speed gears, namely low speed gear, medium speed gear and high speed gear speed gears. The higher the gear speed, the faster the air pump blows dry air into the inner cavity, and the faster the hot air blower mixes the gas. When both operate at the high speed gear at the same time, the moisture removal speed is the fastest.

[0077] The controller is used to control the gears of the air pump and the hot air blower for moisture removal based on the moisture removal control method of the steam oven described in the above embodiment.

[0078] The steam oven of this embodiment determines different moisture exhaust control strategies according to the cooking time of the steam oven, improves the cooking effect, and eliminates the risk of steam blowing in the face. When the cooking time is greater than or equal to the start moisture exhaust time and less than or equal to the cooking end time, the air pump and the hot air blower are controlled 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 hot air blower and the temperature sensor, the rotation speed gears of the air pump and the hot air blower 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, thereby affecting the cooking effect of the food and improving the cooking effect. When the cooking time is greater than the cooking end time and less than or equal to the end moisture exhaust time, the air pump and the hot air blower are controlled to operate at the highest gear. At this time, the moisture exhaust speed is the fastest, realizing rapid moisture exhaust of the steam oven and avoiding the risk of steam blowing in the face when opening the door of the steam oven at the end of cooking.

[0079] Further, the air pump is communicated with the inner cavity through a hose.

[0080] Further, the air pump has a diaphragm structure.

[0081] The air pump is directly connected to the inner cavity through a hose. Since the air valve is omitted, the cost is greatly reduced. Moreover, the air pump has a diaphragm structure, and the air outlet pressure of the air pump is positive pressure, higher than 50 kPa. When exhausting moisture, dry air enters the inner cavity smoothly. The cross-sectional area of the air pumping channel of the air pump is only less than 1 / 10 of the cross-sectional area of the air outlet of the inner cavity. In the normal steaming mode, steam is discharged from the air outlet of the inner cavity, avoiding the risk of steam backflow.

[0082] 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), etc.

[0083] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of 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 recorded in this specification.

[0084] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation to 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 deformations and improvements can still be made, and these all belong to 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 communicated with the inner cavity, a hot air blower and a temperature sensor arranged 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; If the cooking time is greater than or equal to the start of moisture exhaust time and less than or equal to the cooking end time, then control the air pump and the hot air blower 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 cooking time is greater than the cooking end time and less than or equal to the end of moisture exhaust time, then control the air pump and the hot air blower to operate at the highest gear.

2. The method according to claim 1, characterized in that, The steaming function mode includes the normal steaming mode, and both the air pump and the hot air blower have a low speed gear, a medium speed gear and a high speed gear; the controlling the air pump and the hot air blower 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, then control the air pump and the hot air blower 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, then control the air pump and the hot air blower to operate at the medium speed gear; If the temperature detected by the temperature sensor is less than the second preset temperature, then control the air pump and the hot air blower 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 hot air blower have a low speed gear, a medium speed gear and a high speed gear; the controlling the air pump and the hot air blower 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, then control the air pump to operate at the medium speed gear and control the hot air blower 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, then control the air pump and the hot air blower to operate at the medium speed gear; If the temperature detected by the temperature sensor is less than the fourth preset temperature, then control the air pump to operate at the low speed gear and control the hot air blower to operate at the medium speed gear.

4. The method according to claim 2, wherein If the cooking time is greater than the cooking end time and less than or equal to the end of moisture exhaust time, then control the air pump and the hot air blower 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 cooking time is greater than the cooking end time and less than or equal to the end of moisture exhaust time, then control the air pump and the hot air blower 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, characterized in that, The method further includes: If the cooking time is less than the start of moisture exhaust time, then control the air pump and the hot air blower not to operate.

7. 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, then control the air pump not to operate and control the hot air blower to operate at the low speed gear.

8. An oven with steam function, comprising an inner container, an air pump communicated with the inner container, a hot air blower and a temperature sensor arranged in the inner container, characterized in that, It further includes a controller electrically connected to the air pump, the hot air blower, and the temperature sensor, and the controller executes the steps of the method according to any one of claims 1 to 7.

9. The steam oven according to claim 8, wherein, The air pump is connected to the inner tank through a hose.

10. The steam oven according to claim 9, characterized in that, The air pump has a diaphragm structure.

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