Heating control method of steaming oven, steaming oven and storage medium

Abstract

The invention relates to the field of household appliances, in particular to a heating control method of a steaming oven, the steaming oven and a storage medium. The method comprises the following steps: determining a heating mode of the steaming oven; if the steaming oven is in the first heating mode, the fan and the heating pipe are controlled to operate, and when the temperature detected by the temperature sensor is larger than a temperature threshold value, the heating pipe is controlled to stop operating; wherein the operation power of the fan is increased along with the increase of the temperature; if the steaming oven is in the second heating mode, the heating pipe is controlled to operate, when the temperature detected by the temperature sensor is larger than the temperature threshold value, the heating pipe is controlled to stop operating, and the heating efficiency and the moisture removal effect of the steaming oven in the heating mode are both considered.

Description

Technical Field

[0001] The present application relates to the field of household appliances, and particularly to a heating control method, a steam oven, and a storage medium for a steam oven. Background Art

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

[0003] In related methods, when a steam oven uses a heating tube for heating, the fan usually has a fixed power, a fixed rotation speed, and a fixed fan blade size for moisture removal. The working power of the fan cannot change with the heat generation of the heating tube, resulting in low heating efficiency and moisture removal effect of the steam oven. Summary of the Invention

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

[0005] In a first aspect, an embodiment of the present application provides a heating control method for a steam oven. The steam oven includes a cavity, a heating tube, a fan, and a temperature sensor disposed in the cavity. The heating tube and the fan are connected in series, and the resistance value of the heating tube decreases with the increase in temperature. The method includes:

[0006] Determine the heating mode of the steam oven;

[0007] If the steam oven is in a first heating mode, control the fan and the heating tube to operate. When the temperature detected by the temperature sensor is greater than the temperature threshold, control the heating tube to stop operating; wherein, the operating power of the fan increases with the increase in temperature;

[0008] If the steam oven is in a second heating mode, control the heating tube to operate. When the temperature detected by the temperature sensor is greater than the temperature threshold, control the heating tube to stop operating.

[0009] In some embodiments, the method includes:

[0010] If the steam oven is in a first heating mode, when the temperature detected by the temperature sensor is less than or equal to the temperature threshold, continue to control the fan and the heating tube to operate;

[0011] If the steam oven is in a second heating mode, when the temperature detected by the temperature sensor is less than or equal to the temperature threshold, continue to control the heating tube to operate.

[0012] In some embodiments, the steam oven further includes a fixed resistor connected in series with the heating tube, and the resistance value of the heating tube is less than that of the fixed resistor. The method further includes:

[0013] If the steam oven is in the first heating mode, control the fixed resistor not to be connected.

[0014] If the steam oven is in the second heating mode, control the fixed resistor to be connected.

[0015] In some embodiments, the steam oven further includes a first switch, a second switch, a third switch, and a fourth switch. The first switch is connected in series with the blower, the heating tube, and the fixed resistor. The second switch is connected in parallel with the blower. The third switch is connected in parallel with the heating tube and the fixed resistor. The fourth switch is connected in parallel with the fixed resistor.

[0016] If the steam oven is in the first heating mode, control the first switch and the fourth switch to be closed, control the second switch and the third switch to be open. When the temperature detected by the temperature sensor is greater than the temperature threshold, control the third switch to be closed.

[0017] If the steam oven is in the second heating mode, control the first switch and the second switch to be closed, control the third switch and the fourth switch to be open. When the temperature detected by the temperature sensor is greater than the temperature threshold, control the first switch to be open.

[0018] In a second aspect, an embodiment of the present application provides a steam oven, including a cavity, and a heating tube, a blower, a temperature sensor, and a control module disposed in the cavity. The heating tube and the blower are connected in series, and the resistance value of the heating tube decreases as the temperature increases. The control module is configured to determine the heating mode of the steam oven. If the steam oven is in the first heating mode, control the blower and the heating tube to operate. When the temperature detected by the temperature sensor is greater than the temperature threshold, control the heating tube to stop operating. Wherein, the operating power of the blower increases as the temperature increases. If the steam oven is in the second heating mode, control the heating tube to operate. When the temperature detected by the temperature sensor is greater than the temperature threshold, control the heating tube to stop operating.

[0019] In some embodiments, the control module is further configured to: if the steam oven is in the first heating mode, when the temperature detected by the temperature sensor is less than or equal to the temperature threshold, continue to control the blower and the heating tube to operate. If the steam oven is in the second heating mode, when the temperature detected by the temperature sensor is less than or equal to the temperature threshold, continue to control the heating tube to operate.

[0020] In some embodiments, the steam oven further includes a fixed resistor connected in series with the heating tube, the resistance value of the heating tube being less than that of the fixed resistor, and the control module is further configured to: if the steam oven is in the first heating mode, control the fixed resistor not to be connected; if the steam oven is in the second heating mode, control the fixed resistor to be connected.

[0021] In some embodiments, the steam oven further includes a first switch, a second switch, a third switch, and a fourth switch. The first switch is connected in series with the blower, the heating tube, and the fixed resistor. The second switch is connected in parallel with the blower. The third switch is connected in parallel with the heating tube and the fixed resistor. The fourth switch is connected in parallel with the fixed resistor.

[0022] If the steam oven is in the first heating mode, the control module controls the first switch and the fourth switch to be closed, and controls the second switch and the third switch to be open. When the temperature detected by the temperature sensor is greater than the temperature threshold, the third switch is controlled to be closed.

[0023] If the steam oven is in the second heating mode, the control module controls the first switch and the second switch to be closed, and controls the third switch and the fourth switch to be open. When the temperature detected by the temperature sensor is greater than the temperature threshold, the first switch is controlled to be open.

[0024] In some embodiments, the blower includes a rotating base and a fan blade. The fan blade is connected to the rotating base by a spring, and the opening degree between the fan blade and the rotating base increases as the power of the blower increases.

[0025] In a third aspect, an embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the method described in the first aspect above are implemented.

[0026] Compared with the prior art, the present application determines the heating mode of the steam oven. When the steam oven is in the first heating mode, the blower and the heating tube are controlled to operate. When the temperature detected by the temperature sensor is greater than the temperature threshold, the heating tube is controlled to stop operating. Among them, the operating power of the blower increases as the temperature increases. When the steam oven is in the second heating mode, the heating tube is controlled to operate. When the temperature detected by the temperature sensor is greater than the temperature threshold, the heating tube is controlled to stop operating, taking into account the heating efficiency and moisture removal effect of the steam oven in the heating mode, and improving the heating efficiency of the heating tube and the moisture removal effect of the blower in the heating mode of the steam oven. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the structure of a steam oven in an embodiment of the present application;

[0028] Figure 2 Schematic diagram of the structure of the blower of a steam oven in an embodiment of the present application;

[0029] Figure 3 Schematic diagram of the electrical connection of the control module of a steam oven in an embodiment of the present application;

[0030] Figure 4 Schematic diagram of the process of the heating control method of a steam oven in an embodiment of the present application;

[0031] Figure 5 Schematic diagram of the circuit connection of a steam oven in an embodiment of the present application;

[0032] Figure 6 Schematic diagram of the overall process of the heating control method of a steam oven in an exemplary embodiment of the present application.

[0033] Among them, 102, heating tube; 104, blower; 106, temperature sensor; 108, control module; 1041, rotating base; 1042, fan blade; 1043, spring. Detailed implementation manners

[0034] 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.

[0035] As shown in the present invention and the claims, unless the context clearly indicates an exceptional situation, 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.

[0036] Although the present invention makes various references to certain modules in the systems 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 system and method can use different modules.

[0037] 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 direct connection or coupling, or communication 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" as used herein may include any and all combinations of one or more of the associated listed items.

[0038] The heating control method for a steam oven provided by an embodiment of the present application can be applied to a steam oven as Figure 1 shown. The steam oven includes a cavity and a heating tube 102, a blower 104, a temperature sensor (not shown in the figure), and a control module (not shown in the figure) provided in the cavity. The heating tube 102 and the blower 104 are connected in series, and the resistance value of the heating tube 102 decreases as the temperature rises.

[0039] Among them, the temperature sensor is installed in the cavity of the steam oven and is used to collect the temperature inside the cavity.

[0040] As Figure 2 shown, the blower 104 includes a rotating base 1041 and a fan blade 1042. The fan blade 1042 is connected to the rotating base 1041 through a spring 1043, and the opening degree between the fan blade 1042 and the rotating base 1041 increases as the blower power rises.

[0041] As Figure 3 shown, the control module 108 is electrically connected to the heating tube 102, the blower 104, and the temperature sensor 106. The control module 108 is used to collect the temperature data measured by the temperature sensor, and the control module is also used to determine the heating mode of the steam oven; if the steam oven is in the first heating mode, the blower and the heating tube are controlled to operate, and when the temperature detected by the temperature sensor is greater than the temperature threshold, the heating tube is controlled to stop operating; among them, the operating power of the blower increases as the temperature rises; if the steam oven is in the second heating mode, the heating tube is controlled to operate, and when the temperature detected by the temperature sensor is greater than the temperature threshold, the heating tube is controlled to stop operating.

[0042] As Figure 4 shown, an embodiment of the present application provides a heating control method for a steam oven, which is applied to the control module of the above-mentioned steam oven, and specifically includes the following steps:

[0043] S202: Determine the heating mode of the steam oven.

[0044] Specifically, the heating modes of the steam oven include a first heating mode and a second heating mode. The first heating mode is the mode in which the blower is turned on during the heating process, and the second heating mode is the mode in which the blower is not turned on during the heating process.

[0045] S204: If the steam oven is in the first heating mode, control the blower and the heating tube to operate. When the temperature detected by the temperature sensor is greater than the temperature threshold, control the heating tube to stop operating; wherein, the operating power of the blower increases as the temperature rises.

[0046] Specifically, set the temperature threshold T1. When the steam oven is in the first heating mode, the control module controls the blower and the heating tube to operate. The heating tube generates heat, and the temperature in the cavity rises. The operating power of the blower increases as the temperature rises. Until the temperature detected by the temperature sensor is greater than the temperature threshold T1, the control module controls the heating tube to stop operating, and the blower continues to operate. At this time, the operating power of the blower is the highest, the rotation speed is the fastest, and the centrifugal force is the largest. The opening degree between the fan blade of the blower and the rotating base increases as the power of the blower increases, generating a higher wind force, so as to discharge the excess heat and moisture through the steam pipe.

[0047] S206: If the steam oven is in the second heating mode, control the heating tube to operate. When the temperature detected by the temperature sensor is greater than the temperature threshold, control the heating tube to stop operating.

[0048] Specifically, when the steam oven is in the second heating mode, the blower is not turned on at this time. The control module only controls the heating tube to operate. The heating tube generates heat, and the temperature in the cavity rises. Until the temperature detected by the temperature sensor is greater than the temperature threshold T1, the control module controls the heating tube to stop operating.

[0049] In this embodiment, the heating tube is connected in series with the blower. The current in the entire circuit is the same, and the overall voltage remains unchanged. The higher the temperature, the lower the resistance of the heating tube; conversely, the lower the temperature, the higher the resistance of the heating tube. When the temperature in the cavity is lower than the temperature threshold T1, it indicates that the temperature has decreased, and the resistance of the heating tube is greater. In a series circuit, the greater the resistance, the more heat is generated, and the corresponding heat generation increases. Since the blower and the heating tube are connected in series, the current in the two electrical appliances is the same. As the resistance of the heating tube increases, the total resistance of the circuit becomes larger, the current becomes smaller, and the current of the blower also becomes smaller. With the decrease in the current of the blower and the unchanged resistance, the voltage across it also decreases. Since the power of the blower is equal to the current multiplied by the voltage (W = UI), the actual working power becomes smaller, and the rotational speed decreases. When the rotational speed of the blower is lower, its centrifugal force is smaller, the opening degree between the fan blade and the rotating base decreases, the entire fan blade area decreases, the wind force generated in the cavity becomes smaller, the moisture exhaust performance is reduced, and the heat discharged from the steam pipe is reduced, thereby compensating for the temperature in the cavity. When the temperature in the cavity is higher than the temperature threshold T1, the temperature increases, the resistance of the heating tube becomes smaller, the heat generation decreases, the current of the blower increases, the working power increases, the rotational speed speeds up, the centrifugal force is large, the opening degree between the fan blade and the rotating base increases, the fan blade area increases, the generated wind force becomes larger, more water vapor is sucked from the cavity to the fan blade position and discharged to the exhaust pipe, and the moisture exhaust performance is increased.

[0050] Through this embodiment, the wind speed of the blower changes with the heating amount of the heating tube, increasing with the increase in temperature. When the temperature in the cavity does not reach the temperature threshold, the blower reduces the moisture exhaust performance and reduces the heat discharged from the steam pipe, thereby compensating for the temperature in the cavity; when the temperature in the cavity reaches the temperature threshold, the blower increases the moisture exhaust performance, taking into account the heating efficiency and moisture exhaust effect of the steam oven in the heating mode, and improving the heating efficiency of the heating tube and the moisture exhaust effect of the blower.

[0051] In some embodiments, the method further includes the following:

[0052] If the steam oven is in the first heating mode and the temperature detected by the temperature sensor is less than or equal to the temperature threshold, then continue to control the blower and the heating tube to operate.

[0053] If the steam oven is in the second heating mode and the temperature detected by the temperature sensor is less than or equal to the temperature threshold, then continue to control the heating tube to operate.

[0054] In some embodiments, as Figure 5 shown, the steam oven further includes a fixed resistor connected in series with the heating tube. The resistance value of the heating tube is less than the resistance value of the fixed resistor. The method further includes:

[0055] If the steam oven is in the first heating mode, then control the fixed resistor not to be connected.

[0056] If the steam oven is in the second heating mode, control the fixed resistor to be connected.

[0057] In order to increase the calorific value, in this embodiment, a fixed resistor is connected in series with the heating tube, and the resistance value of the heating tube is smaller than that of the fixed resistor. Since an increase in the resistance value of the heating tube will cause a relatively small decrease in the total current, the calorific value will increase first until the resistance value of the heating tube is equal to that of the fixed resistor, reaching the maximum value.

[0058] In some embodiments, continue to refer to Figure 5 , the steam oven further includes a first switch, a second switch, a third switch, and a fourth switch. The first switch is connected in series with the blower, the heating tube, and the fixed resistor. The second switch is connected in parallel with the blower. The third switch is connected in parallel with the heating tube and the fixed resistor. The fourth switch is connected in parallel with the fixed resistor.

[0059] If the steam oven is in the first heating mode, control the first switch and the fourth switch to close, control the second switch and the third switch to open. When the temperature detected by the temperature sensor is greater than the temperature threshold, control the third switch to close.

[0060] Specifically, when the steam oven is in the first heating mode, the control module controls the first switch and the fourth switch to close, and controls the second switch and the third switch to open. In this mode, the blower and the heating tube work normally, and the fixed resistor is short-circuited. When the temperature detected by the temperature sensor is greater than the temperature threshold T1, the control module controls the third switch to close, and the heating tube is short-circuited, and the heating tube stops operating.

[0061] If the steam oven is in the second heating mode, control the first switch and the second switch to close, control the third switch and the fourth switch to open. When the temperature detected by the temperature sensor is greater than the temperature threshold, control the first switch to open.

[0062] Specifically, when the steam oven is in the second heating mode, the control module controls the first switch and the second switch to close, and controls the third switch and the fourth switch to open. In this mode, the blower is short-circuited, the fixed resistor is connected to the circuit, and the heating tube works normally. The calorific value is increased by connecting the fixed resistor in the series circuit. When the temperature detected by the temperature sensor is greater than the temperature threshold T1, the control module controls the first switch to open. At this time, the entire circuit is open to reduce the cavity temperature.

[0063] In an exemplary embodiment, the heating control method of the steam oven is as Figure 6As shown, in this exemplary embodiment, a temperature threshold T1 is set, and the heating mode of the steam oven is determined according to whether the fan is turned on.

[0064] If the fan is turned on, the steam oven is in the first heating mode. The control module controls the first switch and the fourth switch to close, and controls the second switch and the third switch to open. The fan and the heating tube work normally, and the fixed resistor is short-circuited. When the cavity temperature T is less than or equal to the temperature threshold T1, the heating tube works. The lower the temperature, the greater the resistance of the heating tube. In a series circuit, as the resistance increases, the heat generation increases. In the circuit, the situation of the fan is opposite. The power decreases, the rotation speed slows down, the centrifugal force is the smallest, the opening degree between the fan blade and the rotating base decreases, and the generated wind force becomes smaller, reducing the heat discharged from the steam pipe. When the cavity temperature T is greater than the temperature threshold T1, the third switch is controlled to close. Only the fan works in the whole circuit. As the temperature of the heating tube increases, its resistance decreases. At this time, the fan works at the highest power, with the fastest rotation speed and the largest centrifugal force. The opening degree between the fan blade and the rotating base increases, and the generated wind force is the highest, discharging the excess heat and moisture through the steam pipe.

[0065] If not, the steam oven is in the second heating mode. The control module controls the first switch and the second switch to close, and controls the third switch and the fourth switch to open. The fan is short-circuited, and the fixed resistor is connected to the circuit. The heating tube works normally. When the cavity temperature T is less than or equal to the temperature threshold T1, the heating tube works, and the heat generation is increased by connecting the fixed resistor in the series circuit. When the cavity temperature T is greater than the temperature threshold T1, the control module controls the first switch to open, and the whole circuit is open to reduce the cavity temperature.

[0066] Among them, each temperature corresponds to a resistance threshold R1. The resistance value of the heating tube decreases as the temperature increases. When the resistance of the heating tube is less than the resistance threshold R1, it indicates that the cavity temperature is sufficient or even high. Since the resistance value of the heating tube is not measurable, the current resistance of the heating tube can be characterized by the cavity temperature. When the cavity temperature T is greater than the temperature threshold T1, it indicates that the resistance of the heating tube is less than the resistance threshold R1, and then the heating tube is stopped from heating by short-circuiting or opening the circuit.

[0067] 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 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.

[0068] The embodiment of the present application also provides a steam oven as Figure 1 shown, including a cavity, and a heating tube, a blower, a temperature sensor and a control module arranged in the cavity. The heating tube and the blower are connected in series, and the resistance value of the heating tube decreases as the temperature rises; the control module is used to determine the heating mode of the steam oven; if the steam oven is in the first heating mode, control the blower and the heating tube to operate, and when the temperature detected by the temperature sensor is greater than the temperature threshold, control the heating tube to stop operating; wherein, the operating power of the blower increases as the temperature rises; if the steam oven is in the second heating mode, control the heating tube to operate, and when the temperature detected by the temperature sensor is greater than the temperature threshold, control the heating tube to stop operating.

[0069] In some embodiments, the control module is further configured to: if the steam oven is in the first heating mode, when the temperature detected by the temperature sensor is less than or equal to the temperature threshold, continue to control the blower and the heating tube to operate; if the steam oven is in the second heating mode, when the temperature detected by the temperature sensor is less than or equal to the temperature threshold, continue to control the heating tube to operate.

[0070] In some embodiments, the steam oven further includes a fixed resistor connected in series with the heating tube, and the resistance value of the heating tube is less than the resistance value of the fixed resistor. The control module is further configured to: if the steam oven is in the first heating mode, control the fixed resistor not to be connected; if the steam oven is in the second heating mode, control the fixed resistor to be connected.

[0071] In some embodiments, the steam oven further includes a first switch, a second switch, a third switch and a fourth switch. The first switch is connected in series with the blower, the heating tube and the fixed resistor. The second switch is connected in parallel with the blower. The third switch is connected in parallel with the heating tube and the fixed resistor. The fourth switch is connected in parallel with the fixed resistor.

[0072] If the steam oven is in the first heating mode, the control module controls the first switch and the fourth switch to close, and controls the second switch and the third switch to open. When the temperature detected by the temperature sensor is greater than the temperature threshold, the third switch is controlled to close;

[0073] If the steam oven is in the second heating mode, the control module controls the first switch and the second switch to close, and controls the third switch and the fourth switch to open. When the temperature detected by the temperature sensor is greater than the temperature threshold, the first switch is controlled to open.

[0074] In some embodiments, the blower includes a rotating base and a fan blade. The fan blade is connected to the rotating base by a spring, and the opening degree between the fan blade and the rotating base increases as the power of the blower increases.

[0075] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0076] Determine the heating mode of the steam oven;

[0077] If the steam oven is in the first heating mode, control the blower and the heating tube to operate. When the temperature detected by the temperature sensor is greater than the temperature threshold, control the heating tube to stop operating; wherein, the operating power of the blower increases as the temperature increases;

[0078] If the steam oven is in the second heating mode, control the heating tube to operate. When the temperature detected by the temperature sensor is greater than the temperature threshold, control the heating tube to stop operating.

[0079] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0080] If the steam oven is in the first heating mode, when the temperature detected by the temperature sensor is less than or equal to the temperature threshold, continue to control the blower and the heating tube to operate;

[0081] If the steam oven is in the second heating mode, when the temperature detected by the temperature sensor is less than or equal to the temperature threshold, continue to control the heating tube to operate.

[0082] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented: If the steam oven is in the first heating mode, control the fixed resistor not to be connected; if the steam oven is in the second heating mode, control the fixed resistor to be connected.

[0083] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented: If the steam oven is in the first heating mode, control the first switch and the fourth switch to close, control the second switch and the third switch to open, and when the temperature detected by the temperature sensor is greater than the temperature threshold, control the third switch to close; If the steam oven is in the second heating mode, control the first switch and the second switch to close, control the third switch and the fourth switch to open, and when the temperature detected by the temperature sensor is greater than the temperature threshold, control the first switch to open.

[0084] Those of ordinary skill in the art can understand that all or part of the processes of implementing the methods in 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 various embodiments provided in the present application can include at least one of non-volatile and volatile memories. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, or optical memory, 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.

[0085] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the various 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.

[0086] The above embodiments only represent several implementation manners of the present application. The description 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 belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A heating control method for a steam oven, the steam oven comprising a cavity and a heating tube, a fan and a temperature sensor arranged in the cavity, the heating tube and the fan being connected in series, and the resistance of the heating tube decreasing with increasing temperature; characterized in that: The method comprises: Determining a heating mode of the steam oven; If the steam oven is in the first heating mode, the fan and the heating tube are controlled to operate, and when the temperature detected by the temperature sensor is greater than the temperature threshold, the heating tube is controlled to stop operating; wherein the operating power of the fan increases with the increase of the temperature; If the steam oven is in the second heating mode, the heating tube is controlled to operate; when the temperature detected by the temperature sensor is greater than a temperature threshold, the heating tube is controlled to stop operating.

2. The method according to claim 1, characterized in that The method comprises: If the steam oven is in the first heating mode, when the temperature detected by the temperature sensor is less than or equal to the temperature threshold, the fan and the heating tube continue to be controlled to operate; If the steam oven is in the second heating mode, when the temperature detected by the temperature sensor is less than or equal to the temperature threshold, the heating tube continues to be controlled to operate.

3. The method according to claim 1, characterized in that The steam oven further includes a fixed resistor connected in series with the heating tube, and the resistance of the heating tube is smaller than the resistance of the fixed resistor. The method further includes: If the steam oven is in the first heating mode, controlling the fixed resistor to be disconnected; If the steam oven is in the second heating mode, the fixed resistor is controlled to be connected.

4. The method according to claim 3, characterized in that The steam oven further comprises a first switch, a second switch, a third switch and a fourth switch, wherein the first switch is connected in series with the fan, the heating tube and the fixed resistor, the second switch is connected in parallel with the fan, the third switch is connected in parallel with the heating tube and the fixed resistor, and the fourth switch is connected in parallel with the fixed resistor. If the steam oven is in the first heating mode, the first switch and the fourth switch are controlled to be closed, and the second switch and the third switch are controlled to be opened; when the temperature detected by the temperature sensor is greater than the temperature threshold, the third switch is controlled to be closed; If the steam oven is in the second heating mode, the first switch and the second switch are controlled to be closed, and the third switch and the fourth switch are controlled to be opened. When the temperature detected by the temperature sensor is greater than the temperature threshold, the first switch is controlled to be opened.

5. A steam oven, characterized in that: The invention comprises a cavity and a heating tube, a fan, a temperature sensor and a control module arranged in the cavity, wherein the heating tube and the fan are connected in series, and the resistance of the heating tube decreases as the temperature increases; the control module is used to determine the heating mode of the steam oven; if the steam oven is in the first heating mode, the fan and the heating tube are controlled to operate, and when the temperature detected by the temperature sensor is greater than the temperature threshold, the heating tube is controlled to stop operating; wherein the operating power of the fan increases as the temperature increases; if the steam oven is in the second heating mode, the heating tube is controlled to operate, and when the temperature detected by the temperature sensor is greater than the temperature threshold, the heating tube is controlled to stop operating.

6. The steam oven according to claim 5, characterized in that: The control module is also used for: if the steam oven is in the first heating mode, when the temperature detected by the temperature sensor is less than or equal to the temperature threshold, continuing to control the operation of the fan and the heating tube; if the steam oven is in the second heating mode, when the temperature detected by the temperature sensor is less than or equal to the temperature threshold, continuing to control the operation of the heating tube.

7. The steam oven according to claim 5, characterized in that: The steam oven also includes a fixed resistor connected in series with the heating tube, and the resistance of the heating tube is smaller than the resistance of the fixed resistor. The control module is also used for: if the steam oven is in a first heating mode, controlling the fixed resistor to be disconnected; if the steam oven is in a second heating mode, controlling the fixed resistor to be connected.

8. The steam oven according to claim 7, characterized in that: The steam oven further comprises a first switch, a second switch, a third switch and a fourth switch, wherein the first switch is connected in series with the fan, the heating tube and the fixed resistor, the second switch is connected in parallel with the fan, the third switch is connected in parallel with the heating tube and the fixed resistor, and the fourth switch is connected in parallel with the fixed resistor. If the steam oven is in the first heating mode, the control module controls the first switch and the fourth switch to be closed, and controls the second switch and the third switch to be opened; when the temperature detected by the temperature sensor is greater than the temperature threshold, the control module controls the third switch to be closed; If the steam oven is in the second heating mode, the control module controls the first switch and the second switch to be closed, and controls the third switch and the fourth switch to be opened. When the temperature detected by the temperature sensor is greater than the temperature threshold, the first switch is controlled to be opened.

9. The steam oven according to any one of claims 5 to 8, characterized in that: The fan comprises a rotating base and fan blades, wherein the fan blades are connected to the rotating base via a spring, and the opening and closing degree between the fan blades and the rotating base increases as the power of the fan increases.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 4 are implemented.

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