Dehumidification control method of steaming oven and steaming oven

Abstract

The invention relates to the field of cooking equipment, in particular to a moisture removal control method of a steaming oven and the steaming oven. The method comprises the steps that whether the steaming oven is in a full-open mode or an annular air mode or not is determined; if yes, according to the temperature data collected by the temperature sensor and the humidity data collected by the humidity sensor, a first control strategy is executed to control the air heater and the air pump; and if not, a second control strategy is executed to control the air heater and the air pump according to the temperature data collected by the temperature sensor and the humidity data collected by the humidity sensor. Through cooperation of the air pump, the hot-air blower, the temperature sensor and the humidity sensor, the gears of the air pump and the hot-air blower are dynamically adjusted, and moisture removal is accurately controlled.

Description

Technical Field

[0001] This application relates to the field of cooking equipment, and in particular to a dehumidification control method for a steam oven and a steam oven. Background Technology

[0002] With the increasing demand for diverse kitchen appliances, cooking equipment with only steam oven or oven functions can no longer meet current needs. As a steam kitchen appliance that combines the functions of steam oven and oven, the steam oven has emerged.

[0003] Related methods use air pumps and hot air blowers to remove moisture from inside the steam oven. However, in pursuit of rapid dehumidification, the air pump or hot air blower speed is usually fixed at a high level, causing the humidity and temperature inside the oven to drop rapidly during the dehumidification process. This makes it impossible to precisely control the dehumidification accuracy, thus affecting the cooking results. Summary of the Invention

[0004] Therefore, it is necessary to provide a dehumidification control method for a steam oven and a steam oven in response to the above-mentioned technical problems.

[0005] In a first aspect, embodiments of the present invention provide a dehumidification control method for a steam oven, the steam oven comprising an inner cavity, an air pump communicating with the inner cavity, and a hot air blower, a temperature sensor, and a humidity sensor disposed within the inner cavity, the method being applied to the baking function mode of the steam oven, the method comprising: Determine whether the steam oven is in full-on mode or fan-assisted mode; If so, the first control strategy is executed to control the hot air blower and the air pump based on the temperature data collected by the temperature sensor and the humidity data collected by the humidity sensor. If not, then based on the temperature data collected by the temperature sensor and the humidity data collected by the humidity sensor, the second control strategy is executed to control the hot air blower and the air pump.

[0006] In some embodiments, the step of controlling the hot air blower and the air pump based on the temperature data collected by the temperature sensor and the humidity data collected by the humidity sensor includes: If the difference between the temperature data and the temperature setpoint is less than the temperature difference threshold, then the first control sub-strategy is executed to control the hot air blower and the air pump based on the humidity data. If the difference between the temperature data and the temperature setpoint is greater than or equal to the temperature difference threshold, then the second control sub-strategy is executed to control the hot air blower and the air pump based on the humidity data.

[0007] In some embodiments, both the air pump and the hot air blower have low-speed, medium-speed, and high-speed settings. The step of controlling the hot air blower and the air pump based on the humidity data using a first control sub-strategy includes: If the humidity data is less than or equal to the first humidity setting value, the hot air blower is controlled to operate at medium speed, and the air pump is controlled to stop working. If the humidity data is greater than the first humidity setting value and less than the second humidity setting value, then the hot air blower is controlled to operate at medium speed and the air pump is controlled to operate at low speed. If the humidity data is greater than or equal to the second humidity setting value, then the hot air blower is controlled to operate at high speed, and the air pump is controlled to operate at medium speed.

[0008] In some embodiments, the step of controlling the hot air blower and the air pump by executing a second control sub-strategy based on the humidity data includes: If the humidity data is less than or equal to the first humidity setting value, the hot air blower is controlled to operate at medium speed, and the air pump is controlled to stop working. If the humidity data is greater than the first humidity setting value and less than the third humidity setting value, then the hot air blower is controlled to operate at medium speed, and the air pump is also controlled to operate at medium speed; the third humidity setting value is greater than the second humidity setting value. If the humidity data is greater than or equal to the third humidity setting value, then the hot air blower is controlled to operate at high speed, and the air pump is also controlled to operate at high speed.

[0009] In some embodiments, the step of controlling the hot air blower and the air pump by executing a second control sub-strategy based on the humidity data includes: If the difference between the temperature data and the temperature setpoint is less than the temperature difference threshold, then the third control sub-strategy is executed to control the hot air blower and the air pump based on the humidity data. If the difference between the temperature data and the temperature setpoint is greater than or equal to the temperature difference threshold, then the fourth control sub-strategy is executed to control the hot air blower and the air pump based on the humidity data.

[0010] In some embodiments, both the air pump and the hot air blower have low-speed, medium-speed, and high-speed settings. The step of controlling the hot air blower and the air pump based on the humidity data using a third control sub-strategy includes: If the humidity data is less than or equal to the first humidity setting value, the hot air blower is controlled to operate at medium speed, and the air pump is controlled to stop working. If the humidity data is greater than the first humidity setting value and less than the second humidity setting value, then the hot air blower is controlled to operate at medium speed and the air pump is controlled to operate at low speed. If the humidity data is greater than or equal to the second humidity setting value, then the hot air blower is controlled to operate at low speed, and the air pump is controlled to operate at medium speed.

[0011] In some embodiments, the step of controlling the hot air blower and the air pump by executing a fourth control sub-strategy based on the humidity data includes: If the humidity data is less than or equal to the first humidity setting value, then the hot air blower is controlled to stop working, and the air pump is controlled to stop working. If the humidity data is greater than the first humidity setting value and less than the third humidity setting value, then the hot air blower is controlled to not work, and the air pump is controlled to work at medium speed; the third humidity setting value is greater than the second humidity setting value. If the humidity data is greater than or equal to the third humidity setting value, then the hot air blower is controlled to operate at low speed and the air pump is controlled to operate at high speed.

[0012] In a second aspect, embodiments of the present invention provide a steam oven, including an inner cavity, an air pump communicating with the inner cavity, and a hot air blower, a temperature sensor, and a humidity sensor disposed in the inner cavity. It also includes a controller electrically connected to the air pump, the hot air blower, the temperature sensor, and the humidity sensor. In the baking function mode of the steam oven, the controller performs the steps of the method described in the first aspect.

[0013] In some embodiments, the air pump is connected to the inner liner via a hose.

[0014] In some embodiments, the air pump is a diaphragm type.

[0015] Compared with existing technologies, this technical solution has the following advantages: In the baking function mode, the steam oven determines whether it is in full-on or fan-operated mode. If so, it executes a first control strategy to control the hot air blower and air pump based on temperature data collected by the temperature sensor and humidity data collected by the humidity sensor. If not, it executes a second control strategy to control the hot air blower and air pump based on the temperature data collected by the temperature sensor and humidity data collected by the humidity sensor. Through the coordinated operation of the air pump, hot air blower, temperature sensor, and humidity sensor, the speed of the air pump and hot air blower is dynamically adjusted to precisely control dehumidification. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the module connection of a steam oven in one embodiment; Figure 2 This is a flowchart of a dehumidification control method for a steam oven in one embodiment; Figure 3 This is a flowchart illustrating the execution of a first control sub-policy and a second control sub-policy in one embodiment. Figure 4 This is a flowchart illustrating the execution of the first control sub-strategy in one embodiment; Figure 5 This is a flowchart of the execution of the second control sub-strategy in one embodiment; Figure 6 This is a flowchart illustrating the execution of the third and fourth control sub-policies in one embodiment; Figure 7 This is a flowchart illustrating the execution of the third control sub-strategy in one embodiment; Figure 8 This is a flowchart of the execution of the fourth control sub-policy in one embodiment; Figure 9 This is a flowchart illustrating the dehumidification control method in the first example embodiment. Detailed Implementation

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of the present invention. For those skilled in the art, the present invention can be applied to other similar scenarios based on these drawings without creative effort. Unless obvious from the context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0018] As indicated in this invention and the claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0019] While this invention makes various references to certain modules in an apparatus according to embodiments of the invention, any number of different modules can be used and run on a computing device and / or processor. Modules are merely illustrative, and different aspects of the apparatus and methods may use different modules.

[0020] It should be understood that when a unit or module is described as "connected" or "coupled" to other units, modules, or blocks, it may refer to a direct connection or coupling, or communication with other units, modules, or blocks, or the presence of intermediate units, modules, or blocks, unless the context explicitly indicates otherwise. The term "and / or" as used herein may include any and all combinations of one or more of the related listed items.

[0021] Figure 1 This is a schematic diagram of the module connections of a steam oven according to an embodiment of the present invention. Figure 1 As shown, the steam oven includes an inner cavity, an air pump 104 communicating with the inner cavity, a hot air blower 106 disposed in the inner cavity, a temperature sensor 108 and a humidity sensor 110, and a controller 102 electrically connected to the air pump 104, the hot air blower 106, the temperature sensor 108 and the humidity sensor 110.

[0022] The air pump's function is to introduce dry air into the inner tank, while the hot air blower's function is to mix the hot steam in the inner tank with the dry, cool air, and to make the temperature field more uniform in different areas inside the inner tank. Both the air pump and the hot air blower have three speed settings: high, medium, and low. The higher the speed, the faster the air pump blows dry air into the inner tank, and the faster the hot air blower mixes the air and gas. When both are running at high speed simultaneously, the dehumidification speed is the fastest.

[0023] The air pump is connected to the inner liner via a hose.

[0024] The air pump is a diaphragm type.

[0025] The controller can acquire temperature data collected by the temperature sensor and humidity data collected by the humidity sensor, and control the hot air blower and air pump based on the temperature and humidity data.

[0026] Figure 2 This is a flowchart of a dehumidification control method for a steam oven according to an embodiment of the present invention. The method is applied to the baking function mode of the steam oven. Figure 1 As shown, the process includes the following steps: S202: Determine whether the steam oven is in full-on mode or air circulation mode.

[0027] S204: If so, then based on the temperature data collected by the temperature sensor and the humidity data collected by the humidity sensor, the first control strategy is executed to control the hot air blower and the air pump.

[0028] S206: If not, then based on the temperature data collected by the temperature sensor and the humidity data collected by the humidity sensor, execute the second control strategy to control the hot air blower and the air pump.

[0029] Based on steps S202-S206 above, in the baking function mode, the steam oven determines whether it is in full-on mode or fan-assisted mode. If so, it executes a first control strategy to control the hot air blower and air pump based on the temperature data collected by the temperature sensor and the humidity data collected by the humidity sensor. If not, it executes a second control strategy to control the hot air blower and air pump based on the temperature data collected by the temperature sensor and the humidity data collected by the humidity sensor. Through the coordinated operation of the air pump, hot air blower, temperature sensor, and humidity sensor, the speed of the air pump and hot air blower is dynamically adjusted to precisely control dehumidification.

[0030] In some embodiments, such as Figure 3 As shown, the step of controlling the hot air blower and the air pump by executing the first control strategy based on the temperature data collected by the temperature sensor and the humidity data collected by the humidity sensor includes: S302: If the difference between the temperature data and the temperature set value is less than the temperature difference threshold, then the first control sub-strategy is executed to control the hot air blower and the air pump according to the humidity data; S304: If the difference between the temperature data and the temperature setpoint is greater than or equal to the temperature difference threshold, then the second control sub-strategy is executed to control the hot air blower and the air pump based on the humidity data.

[0031] When the difference between the temperature data and the temperature setpoint is less than the temperature difference threshold, the steam oven is in the preheating stage. When the difference between the temperature data and the temperature setpoint is greater than or equal to the temperature difference threshold, the steam oven is in the maintenance stage. In this embodiment, the steam oven uses different control strategies to control the hot air blower and air pump in the preheating and maintenance stages, enabling more precise control of dehumidification.

[0032] In some embodiments, such as Figure 4 As shown, the step of controlling the hot air blower and the air pump by executing the first control sub-strategy based on the humidity data includes: S402: If the humidity data is less than or equal to the first humidity setting value, then control the hot air blower to work at medium speed and control the air pump to stop working; S404: If the humidity data is greater than the first humidity setting value and less than the second humidity setting value, then control the hot air blower to work at medium speed and control the air pump to work at low speed. S406: If the humidity data is greater than or equal to the second humidity setting value, then control the hot air blower to operate at high speed and control the air pump to operate at medium speed.

[0033] In some embodiments, such as Figure 5 As shown, the step of controlling the hot air blower and the air pump by executing the second control sub-strategy based on the humidity data includes: S502: If the humidity data is less than or equal to the first humidity setting value, then control the hot air blower to work at medium speed and control the air pump to stop working; S504: If the humidity data is greater than the first humidity setting value and less than the third humidity setting value, then control the hot air blower to operate at medium speed and control the air pump to operate at medium speed; the third humidity setting value is greater than the second humidity setting value. S506: If the humidity data is greater than or equal to the third humidity setting value, then control the hot air blower to operate at high speed and control the air pump to operate at high speed.

[0034] During the preheating phase of the steam oven, as the food begins to heat up, the humidity inside the oven increases slowly with minimal fluctuations, resulting in a narrow dehumidification adjustment range. Therefore, implementing the first control sub-strategy to control the hot air blower and air pump allows for more accurate dehumidification control. During the maintenance phase, as the food becomes more cooked, the humidity inside the oven is higher and fluctuates more significantly, leading to a wider dehumidification adjustment range. Therefore, implementing the second control sub-strategy to control the hot air blower and air pump allows for faster dehumidification control.

[0035] In some embodiments, such as Figure 6 As shown, the step of controlling the hot air blower and the air pump by executing the second control sub-strategy based on the humidity data includes: S602: If the difference between the temperature data and the temperature set value is less than the temperature difference threshold, then according to the humidity data, the third control sub-strategy is executed to control the hot air blower and the air pump. S604: If the difference between the temperature data and the temperature setpoint is greater than or equal to the temperature difference threshold, then the fourth control sub-strategy is executed to control the hot air blower and the air pump based on the humidity data.

[0036] When the difference between the temperature data and the temperature setpoint is less than the temperature difference threshold, the steam oven is in the preheating stage. When the difference between the temperature data and the temperature setpoint is greater than or equal to the temperature difference threshold, the steam oven is in the maintenance stage. In this embodiment, the steam oven uses different control strategies to control the hot air blower and air pump in the preheating and maintenance stages, enabling more precise control of dehumidification.

[0037] In some embodiments, such as Figure 7 As shown, the step of controlling the hot air blower and the air pump by executing the third control sub-strategy based on the humidity data includes: S702: If the humidity data is less than or equal to the first humidity setting value, then control the hot air blower to work at medium speed and control the air pump to stop working; S704: If the humidity data is greater than the first humidity setting value and less than the second humidity setting value, then control the hot air blower to work at medium speed and control the air pump to work at low speed. S706: If the humidity data is greater than or equal to the second humidity setting value, then control the hot air blower to operate at low speed and control the air pump to operate at medium speed.

[0038] In some embodiments, such as Figure 8 As shown, the step of controlling the hot air blower and the air pump by executing the fourth control sub-strategy based on the humidity data includes: S802: If the humidity data is less than or equal to the first humidity setting value, then control the hot air blower to stop working and control the air pump to stop working; S804: If the humidity data is greater than the first humidity setting value and less than the third humidity setting value, then control the hot air blower to stop working and control the air pump to work at medium speed; the third humidity setting value is greater than the second humidity setting value. S806: If the humidity data is greater than or equal to the third humidity setting value, then control the hot air blower to operate at low speed and control the air pump to operate at high speed.

[0039] During the preheating phase of the steam oven, as the food begins to heat up, the humidity inside the oven increases slowly with minimal fluctuations, resulting in a limited range for humidity control. Therefore, employing the third control sub-strategy to control the hot air blower and air pump allows for more precise humidity control while simultaneously increasing preheating speed. During the maintenance phase, as the food reaches a higher level of doneness, the humidity inside the oven is higher and fluctuates more significantly, leading to a wider range for humidity control. Therefore, employing the fourth control sub-strategy to control the hot air blower and air pump allows for faster humidity control.

[0040] Figure 9 This is a control flowchart for the steam oven in the first example embodiment when it is in steam function. Figure 9As shown, when the steam oven's baking function is activated, determine if the steam oven is in full-on mode or fan-only mode. If so, control the hot air blower to operate at medium speed, and disable the air pump. Acquire temperature data T and humidity data W. Determine if the difference between temperature data T and the set temperature T0 is less than the temperature difference threshold -5℃. If so, i.e., T < T0 - 5℃, compare the humidity data W with the corresponding set humidity value. If humidity data W is less than or equal to the first set humidity value W0, control the hot air blower to operate at medium speed and disable the air pump to reduce the dehumidification speed. If humidity data W is greater than the first set humidity value W0 and less than the second set humidity value 1.2W0, control the hot air blower to operate at medium speed and disable the air pump to accelerate the dehumidification speed. If humidity data W is greater than or equal to the second set humidity value 1.2W0, control the hot air blower to operate at high speed and disable the air pump to operate at medium speed for high-speed dehumidification. If not, i.e., T≥T0-5℃, compare the humidity data W with the corresponding humidity setting value. If the humidity data W is less than or equal to the first humidity setting value W0, control the hot air blower to work at medium speed and control the air pump to not work to reduce the dehumidification speed. If the humidity data W is greater than the first humidity setting value W0 and less than the third humidity setting value 1.5W0, control the hot air blower to work at medium speed and control the air pump to work at medium speed to accelerate the dehumidification speed. If the humidity data W is greater than or equal to the third humidity setting value 1.5W0, control the hot air blower to work at high speed and control the air pump to work at high speed to perform high-speed dehumidification.

[0041] If not in full-on or circulating mode, the heater will not operate. It acquires temperature data T and humidity data W, determining if the difference between temperature data T and the set temperature T0 is less than the temperature difference threshold -5℃ (i.e., T < T0 - 5℃). If humidity data W is less than or equal to the first humidity set value W0, the heater will operate at medium speed, and the air pump will not operate to reduce the dehumidification rate. If humidity data W is greater than the first humidity set value W0 and less than the second humidity set value 1.2W0, the heater will operate at medium speed, and the air pump will operate at low speed to accelerate dehumidification. If humidity data W is greater than or equal to the second humidity set value 1.2W0, the heater will operate at low speed, and the air pump will operate at low speed. If the temperature is below T0-5℃, the system operates at medium speed for high-speed dehumidification. If not, the system compares the humidity data W with the corresponding humidity setting. If the humidity data W is less than or equal to the first humidity setting W0, the system controls the hot air blower to stop working and the air pump to stop working to reduce the dehumidification speed. If the humidity data W is greater than the first humidity setting W0 and less than the third humidity setting 1.5W0, the system controls the hot air blower to stop working and the air pump to operate at medium speed to accelerate the dehumidification speed. If the humidity data W is greater than or equal to the third humidity setting 1.5W0, the system controls the hot air blower to operate at low speed and the air pump to operate at high speed for high-speed dehumidification.

[0042] It should be understood that although the steps in the flowchart above are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowchart above may include multiple steps or multiple stages. These steps or stages are not necessarily completed 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 performed alternately or in turn with other steps or at least some of the steps or stages in other steps.

[0043] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, or optical storage, etc. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc.

[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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, they should be considered to be within the scope of this specification.

[0045] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A method for controlling the dehumidification of a steam oven, the steam oven comprising an inner cavity, an air pump communicating with the inner cavity, and a hot air blower, a temperature sensor, and a humidity sensor disposed within the inner cavity, characterized in that, The method is applied to the baking function mode of the steam oven, and the method includes: Determine whether the steam oven is in full-on mode or fan-assisted mode; If so, the first control strategy is executed to control the hot air blower and the air pump based on the temperature data collected by the temperature sensor and the humidity data collected by the humidity sensor. If not, then based on the temperature data collected by the temperature sensor and the humidity data collected by the humidity sensor, the second control strategy is executed to control the hot air blower and the air pump.

2. The method according to claim 1, characterized in that, The step of controlling the hot air blower and the air pump based on the temperature data collected by the temperature sensor and the humidity data collected by the humidity sensor includes: If the difference between the temperature data and the temperature setpoint is less than the temperature difference threshold, then the first control sub-strategy is executed to control the hot air blower and the air pump based on the humidity data. If the difference between the temperature data and the temperature setpoint is greater than or equal to the temperature difference threshold, then the second control sub-strategy is executed to control the hot air blower and the air pump based on the humidity data.

3. The method according to claim 2, characterized in that, Both the air pump and the hot air blower have low-speed, medium-speed, and high-speed settings. The step of controlling the hot air blower and air pump based on the humidity data using a first control sub-strategy includes: If the humidity data is less than or equal to the first humidity setting value, the hot air blower is controlled to operate at medium speed, and the air pump is controlled to stop working. If the humidity data is greater than the first humidity setting value and less than the second humidity setting value, then the hot air blower is controlled to operate at medium speed and the air pump is controlled to operate at low speed. If the humidity data is greater than or equal to the second humidity setting value, then the hot air blower is controlled to operate at high speed, and the air pump is controlled to operate at medium speed.

4. The method according to claim 3, characterized in that, The step of controlling the hot air blower and the air pump by executing the second control sub-strategy based on the humidity data includes: If the humidity data is less than or equal to the first humidity setting value, the hot air blower is controlled to operate at medium speed, and the air pump is controlled to stop working. If the humidity data is greater than the first humidity setting value and less than the third humidity setting value, then the hot air blower is controlled to operate at medium speed, and the air pump is also controlled to operate at medium speed; the third humidity setting value is greater than the second humidity setting value. If the humidity data is greater than or equal to the third humidity setting value, then the hot air blower is controlled to operate at high speed, and the air pump is also controlled to operate at high speed.

5. The method according to claim 2, characterized in that, The step of controlling the hot air blower and the air pump by executing the second control sub-strategy based on the humidity data includes: If the difference between the temperature data and the temperature setpoint is less than the temperature difference threshold, then the third control sub-strategy is executed to control the hot air blower and the air pump based on the humidity data. If the difference between the temperature data and the temperature setpoint is greater than or equal to the temperature difference threshold, then the fourth control sub-strategy is executed to control the hot air blower and the air pump based on the humidity data.

6. The method according to claim 5, characterized in that, Both the air pump and the hot air blower have low-speed, medium-speed, and high-speed settings. The step of controlling the hot air blower and air pump based on the humidity data using a third control sub-strategy includes: If the humidity data is less than or equal to the first humidity setting value, the hot air blower is controlled to operate at medium speed, and the air pump is controlled to stop working. If the humidity data is greater than the first humidity setting value and less than the second humidity setting value, then the hot air blower is controlled to operate at medium speed and the air pump is controlled to operate at low speed. If the humidity data is greater than or equal to the second humidity setting value, then the hot air blower is controlled to operate at low speed, and the air pump is controlled to operate at medium speed.

7. The method according to claim 6, characterized in that, The step of controlling the hot air blower and the air pump by executing the fourth control sub-strategy based on the humidity data includes: If the humidity data is less than or equal to the first humidity setting value, then the hot air blower is controlled to stop working, and the air pump is controlled to stop working. If the humidity data is greater than the first humidity setting value and less than the third humidity setting value, then the hot air blower is controlled to not work, and the air pump is controlled to work at medium speed; the third humidity setting value is greater than the second humidity setting value. If the humidity data is greater than or equal to the third humidity setting value, then the hot air blower is controlled to operate at low speed and the air pump is controlled to operate at high speed.

8. A steam oven, comprising an inner cavity, an air pump communicating with the inner cavity, and a hot air blower, a temperature sensor, and a humidity sensor disposed within the inner cavity, characterized in that, It also includes a controller electrically connected to the air pump, the hot air blower, the temperature sensor, and the humidity sensor, wherein in the baking function mode of the steam oven, the controller performs the steps of the method as described in any one of claims 1 to 7.

9. The steam oven according to claim 8, characterized in that, The air pump is connected to the inner liner via a hose.

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

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