Steam oven and control method thereof
By introducing a combination of water level detection device and electric heating film into the steam oven, the problems of condensate overflow and dripping are solved, achieving better cooking effect and user experience.
Patent Information
- Application Number
- CN202311299384.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-09
- Publication Date
- 2025-04-11
AI Technical Summary
When using a steam oven, the condensate water in the condensation chamber will flow out through the breathable holes and may drip onto the food or drip continuously after cooking, affecting the cooking effect and user experience.
A steam oven is designed, including a water level detection device and an electric heating film. When the water level detection device reaches a certain position, it sends a conduction signal. In response to this signal, the controller controls the electric heating film to start working, heats the condensate to evaporate and diverge to the outside, thereby reducing the amount of water in the condensation chamber and preventing overflow and dripping.
Through the heating effect of the electric heating film, condensate water is prevented from overflowing from the condensation chamber and dripping onto the food, improving the cooking effect and user experience, and reducing unnecessary water dripping and waste.
Smart Images
Figure CN119791472A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of household appliances, and in particular to a steam oven and a control method thereof. Background Art
[0002] With the development of society, people's living standards are constantly improving. Modern kitchen appliances with steam functions, such as steam ovens and steam boxes, have begun to be widely used in home cooking. Steam ovens can bake food and also steam and cook food. When baking food, the steam oven can use electric heating elements to convert electrical energy into thermal energy, so that the temperature inside the box is increased, and then the food is baked. When steaming and cooking food, a large amount of high-temperature water vapor fills the steam oven, and the high-temperature water vapor will heat the food.
[0003] However, during use, high-temperature steam will condense into water droplets when it encounters a lower temperature object. These water droplets may condense on the control panel to produce water droplets, or they may drip into the food, affecting the taste and appearance of the food. The steam oven in the related art adds a condensation chamber on the top, so that the steam enters the condensation chamber and condenses into condensed water for storage, thereby reducing the risk of condensed water dripping.
[0004] However, as the steam mode runs cumulatively, the condensed water in the condensation chamber accumulates continuously. When the amount of condensed water in the condensation chamber is relatively large, the condensed water will flow out through the air holes between the condensation chamber and the inner pot and flow into the inner pot. If cooking is in progress, it will drip onto the food being cooked, affecting the cooking effect. Or after the user opens the door after cooking is completed, the water in the condensation chamber will continue to drip, which will bring a bad user experience. Summary of the invention
[0005] The embodiment of the present application provides a steam oven and a control method thereof, which are used to prevent condensed water in a condensation chamber from dripping, thereby preventing it from dripping onto the cooked food and affecting the user's experience.
[0006] In a first aspect, an embodiment of the present application provides a steam oven, comprising: an inner pot having a steaming and baking cavity; an air outlet arranged at the top of the inner pot; a condensation cavity, which is connected to the steaming and baking cavity through the air outlet and is used to store condensed water; and a water level detection device, which is arranged on the side wall near the bottom of the inner wall of the condensation cavity and is used to send a conduction signal when the water level in the condensation cavity reaches the installation position of the water level detection device; an electric heating film, which is arranged at the bottom of the inner wall of the condensation cavity and is used to heat the condensed water in the condensation cavity; a controller, which is electrically connected to the water level detection device and the electric heating film; the controller is configured to: in response to receiving the conduction signal, control the electric heating film to start working; in response to the conduction signal being disconnected, control the electric heating film to stop working.
[0007] In the steam oven provided by the embodiment of the present application, a water level detection device is provided on the side wall of the bottom of the inner wall of the condensing chamber, and an electric heating film is provided at the bottom of the inner wall. In this way, when the water level in the condensing chamber reaches the installation position of the water level detection device, the water level detection device will send a conduction signal to the controller, and the controller will control the electric heating film to start working in response to the conduction signal, so that the condensed water in the condensing chamber evaporates and then dissipates to the outside of the steam oven.
[0008] That is to say, when there is a large amount of water in the condensation chamber of the steam oven provided in the embodiment of the present application, the amount of condensed water in the condensation chamber is reduced by the electric heating film, which can prevent the condensed water from overflowing and dripping onto the food being cooked, affecting the user experience.
[0009] In combination with the first implementation method of the first aspect, the electric heating film includes a heating component and a temperature sensor; the heating component is used to heat the condensed water in the condensation chamber; the temperature sensor is used to detect the temperature of the electric heating film; after controlling the electric heating film to start working, the controller is also configured to: obtain the temperature of the electric heating film; if the temperature of the electric heating film is above the first preset temperature, control the heating component to stop heating.
[0010] In combination with the second implementation method of the first aspect, after controlling the heating component to stop heating, the controller is also configured to: if the temperature of the electric heating film is below the second preset temperature, control the heating component to start heating, and the second preset temperature is below the first preset temperature.
[0011] In combination with the third implementation method of the first aspect, the electric heating film also includes a thermal protector connected in series with the heating component; the thermal protector is in an on state when the temperature is lower than a preset disconnection temperature; the preset disconnection temperature is above a first preset temperature; the thermal protector is in an off state when the temperature is greater than or equal to the preset disconnection temperature.
[0012] In combination with the fourth implementation method of the first aspect, the steam oven also includes: a cooling fan, arranged in the condensation chamber, for discharging the steam in the condensation chamber out of the steam oven; the controller is also configured to: in response to receiving a conduction signal, control the cooling fan to start working; in response to the conduction signal being disconnected, control the cooling fan to stop working.
[0013] In combination with the fifth implementation manner of the first aspect, controlling the electric heating film to start working specifically includes: controlling the electric heating film to perform intermittent work.
[0014] In a second aspect, an embodiment of the present application provides a control method for a steam oven, the steam oven comprising: an inner tank having a steaming and baking cavity; an air outlet arranged at the top of the inner tank; a condensation cavity, the condensation cavity being connected to the steaming and baking cavity through the air outlet and being used to store condensed water; and a water level detection device, arranged on the side wall near the bottom of the inner wall of the condensation cavity, for sending a conduction signal when the water level in the condensation cavity reaches the installation position of the water level detection device; an electric heating film, arranged at the bottom of the inner wall of the condensation cavity, for heating the condensed water in the condensation cavity; a controller, electrically connected to the water level detection device and the electric heating film; the control method comprising: in response to receiving the conduction signal, controlling the electric heating film to start working; in response to the conduction signal being disconnected, controlling the electric heating film to stop working.
[0015] In combination with the first implementation method of the second aspect, the electric heating film includes a heating component and a temperature sensor; the heating component is used to heat the condensed water in the condensation chamber; the temperature sensor is used to detect the temperature of the electric heating film; after controlling the electric heating film to start working, the control method also includes: obtaining the temperature of the electric heating film; if the temperature of the electric heating film is above the first preset temperature, controlling the heating component to stop heating.
[0016] In combination with the second implementation of the second aspect, after controlling the heating component to stop heating, the control method further includes: if the temperature of the electric heating film is lower than a second preset temperature, controlling the heating component to start heating, and the second preset temperature is lower than the first preset temperature.
[0017] In combination with the third implementation of the second aspect, the steam oven also includes: a cooling fan, arranged in the condensation chamber, for discharging the steam in the condensation chamber out of the steam oven; the control method also includes: in response to receiving a conduction signal, controlling the cooling fan to start working; in response to the conduction signal being disconnected, controlling the cooling fan to stop working.
[0018] In the third aspect, an embodiment of the present application provides a controller, comprising: one or more processors; one or more memories; wherein the one or more memories are used to store computer program codes, the computer program codes include computer instructions, and when the one or more processors execute the computer instructions, the controller executes any one of the control methods provided in the second aspect and possible implementation methods.
[0019] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, which includes computer instructions. When the computer instructions are controlled on a computer, the computer executes any one of the control methods provided in the second aspect and possible implementation methods.
[0020] In the fifth aspect, an embodiment of the present invention provides a computer program product, which can be directly loaded into a memory and contains software code. After being loaded and executed by a computer, the computer program product can implement any one of the control methods provided in the second aspect and possible implementations as provided in the second aspect and possible implementations.
[0021] It should be noted that the above computer instructions may be stored in whole or in part on a computer-readable storage medium, wherein the computer-readable storage medium may be packaged together with the processor of the controller, or may be packaged separately from the processor of the controller, which is not limited in this application.
[0022] The beneficial effects described in the second to fifth aspects of the present application can be referred to the beneficial effect analysis of the first aspect and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.
[0024] Figure 1 A schematic diagram of the mechanical structure of a steam oven provided in an embodiment of the present application Figure 1 ;
[0025] Figure 2 A schematic diagram of the mechanical structure of a steam generating assembly provided in an embodiment of the present application;
[0026] Figure 3 A schematic diagram of the mechanical structure of a steam oven provided in an embodiment of the present application Figure 2 ;
[0027] Figure 4 A schematic diagram of the mechanical structure of a steam oven provided in an embodiment of the present application Figure 3 ;
[0028] Figure 5 A schematic diagram of a display interface of a display provided in an embodiment of the present application;
[0029] Figure 6 A schematic diagram of the hardware structure of a steam oven provided in an embodiment of the present application;
[0030] Figure 7 A schematic diagram of the mechanical structure of a condensation chamber provided in an embodiment of the present application Figure 1 ;
[0031] Figure 8 A schematic diagram of the mechanical structure of an electric heating film provided in an embodiment of the present application;
[0032] Fig. 9 A control flow of a controller of a steam oven provided in an embodiment of the present application Figure 1 ;
[0033] Fig.10 A schematic diagram of the mechanical structure of another electric heating film provided in an embodiment of the present application;
[0034] Fig.11 A control flow of a controller of a steam oven provided in an embodiment of the present application Figure 2 ;
[0035] Fig.12 A control flow of a controller of a steam oven provided in an embodiment of the present application Figure 3 ;
[0036] Fig.13 A schematic diagram of the mechanical structure of a condensation chamber provided in an embodiment of the present application Figure 2 ;
[0037] Fig.14 A control flow of a controller of a steam oven provided in an embodiment of the present application Figure 4 ;
[0038] Fig.15 An overall flow chart of a steam oven provided in an embodiment of the present application;
[0039] Fig.16 A method flow of a steam oven control method provided in an embodiment of the present application Figure 1 ;
[0040] Fig.17 A method flow of a steam oven control method provided in an embodiment of the present application Figure 2 ;
[0041] Fig.18 A method flow of a steam oven control method provided in an embodiment of the present application Figure 3 ;
[0042] Fig.19 A method flow of a steam oven control method provided in an embodiment of the present application Figure 4 ;
[0043] Fig. 20 A schematic diagram of the hardware architecture of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION
[0044] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0045] It should be noted that the terms "first" and "second" used in the embodiments of the present invention are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.
[0046] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. In addition, when describing a pipeline, the "connected" and "connection" used in this application have the meaning of conduction. The specific meaning needs to be understood in conjunction with the context.
[0047] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.
[0048] With the development of society, people's living standards are constantly improving. Modern kitchen appliances with steam functions, such as steam ovens and steam boxes, have begun to be widely used in home cooking. Steam ovens can bake food and also steam and cook food. When baking food, the steam oven can use electric heating elements to convert electrical energy into thermal energy, so that the temperature inside the box is increased, and then the food is baked. When steaming and cooking food, a large amount of high-temperature water vapor fills the steam oven, and the high-temperature water vapor will heat the food.
[0049] Figure 1 The mechanical structure diagram of a steam oven provided in a feasible embodiment is shown in FIG. Figure 1 As shown, the steam oven 10 may include: a housing 101, an inner tank 102, a door body 103, a steam generating assembly 104, a door switch sensor 105, a condensing chamber ( Figure 1 not shown).
[0050] In some embodiments, the housing 101 may be Figure 1 The shown one is approximately a rectangular parallelepiped, but other shapes are also possible.
[0051] In some embodiments, the inner pot 102 is disposed in the outer shell 101, and a baking cavity with an opening is formed inside the inner pot 102, and food materials that need to be processed can be placed in the baking cavity.
[0052] In some embodiments, the door 103 is hinged to the housing 101 through a hinge assembly, and when cooking is required, the inner pot 102 is opened by the door 103, the food to be cooked is placed in the inner pot 102, and then the door 103 is closed. In this way, a closed space is formed after the door 103 is closed, which can not only reduce heat dissipation but also avoid safety hazards such as burns caused by accidental touch by the user.
[0053] In some embodiments, Figure 2 As shown, the steam oven 10 provided by the present application, the steam generating assembly 104 includes an evaporation tube 210, a water supply device 220, a heat conductor 230 and a heating element 240. The first end of the evaporation tube 210 is in communication with the inner pot 102; the water supply device 220 is in communication with the second end of the evaporation tube 210, and the water supply device 220 is used to supply water into the evaporation tube 210; the heat conductor 230 is wrapped on the evaporation tube 210; the heating element 240 is in contact with the heat conductor 230 and is fixedly connected to the heat conductor 230.
[0054] Optionally, the steam generating component 104 can intermittently start heating or interrupt heating according to a temperature control method to ensure that the temperature in the inner pot 102 is consistent with the set temperature.
[0055] Exemplarily, when the set temperature is 120°C, the steam generating component 104 continues to heat and generate steam until the temperature in the cavity reaches 130°C and stops, and starts heating when it detects that the temperature in the inner pot is lower than 110°C, thereby ensuring that the temperature in the cavity remains at around 120°C.
[0056] In some embodiments, the door switch sensor 105 is disposed on the inner container 102 to detect the switch state of the door body 103. For example, if the door switch sensor 105 detects that the door body is opened and closed once, it can be determined that the door body 103 is in the closed state at this time.
[0057] In some embodiments, Figure 3As shown, the condensation chamber 106 is connected to the steam-bake chamber in the inner container 102 through the air outlet 1021 at the top of the inner container 102. When the steam oven 10 is in operation, the steam in the steam-bake chamber can enter the condensation chamber 106 through the air outlet 1021 at the top of the inner container 102 and condense into condensed water. The condensation chamber 106 stores the condensed water to prevent the steam from condensing into water droplets when it is cold and dripping into the baking chamber of the steam oven 10.
[0058] In some embodiments, Figure 4 As shown, the steam oven 10 further includes: a display panel 107 , an operation panel 108 , a voice device 109 , a power supply 110 , and a controller 111 .
[0059] In some embodiments, the display panel 107 may be a liquid crystal display panel or an organic light-emitting diode (OLED) display panel. The specific type, size, and resolution of the display panel are not limited. The display panel 108 may be used to display the control panel of the oven. The oven may feedback the current working status of the oven through the display panel, such as being in a preheating state or a baking state.
[0060] For example, see Figure 5 The display panel 107 can display the cooking mode selected by the user (including cooking time and cooking temperature), the open or closed state of the door body 103 detected by the door switch sensor 105, the real-time oxygen content in the inner pot 102 detected by the oxygen sensor, the real-time temperature in the inner pot 102 and the remaining time corresponding to the cooking mode, etc.
[0061] In some embodiments, the operation panel 108 has function buttons. Exemplarily, the function buttons include a switch button, a mode selection button, a temperature selection button, + (increase button), - (decrease button), etc. In this way, the user can interact with the oven 11 through the operation panel 108 to adjust the mode, temperature, etc. of the steam oven 10.
[0062] In some embodiments, the voice device 109 is used to issue a prompt message. For example, if the door body 103 is in an open state when the user starts cooking, the voice device 109 issues a voice prompt message of "The door is not closed, please close the door!"
[0063] In some embodiments, the power supply 110 is disposed between the outer shell 101 and the inner pot 102, and is used to provide power supply support to the oven 11. The power supply 110 may include a built-in circuit installed inside the oven 11, or may be an external power supply installed in the steam oven 10, and a power interface for an external power supply is provided in the steam oven 10.
[0064] In some embodiments, Figure 6 As shown, the controller 111 is electrically connected to the steam generating assembly 104, the door switch sensor 105, the display panel 107, the operation panel 108, the voice device 109, and the power supply 110, and is used to generate an operation control signal according to the instruction operation code and the timing signal, and to instruct the steam oven 10 to execute the control instruction.
[0065] Exemplarily, the controller 111 may be a central processing unit (CPU), a general-purpose processor network processor (NP), a digital signal processor (DSP), a microprocessor, a microcontroller, a programmable logic device (PLD), or any combination thereof. The controller 111 may also be other devices with processing functions, such as circuits, devices, or software modules, and the embodiments of the present application do not impose any restrictions on this.
[0066] It is understood that the structure illustrated in the embodiment of the present invention does not constitute a specific limitation on the steam oven. In other embodiments of the present application, the steam oven may include more or fewer components than shown in the figure, or combine some components, or separate some components, or arrange the components differently. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.
[0067] As described in the background technology, when the steam oven is cooking food, the steam generating assembly 104 generates a large amount of high-temperature steam to heat the food. The high-temperature steam enters the condensation chamber 106 through the air outlet 1021 at the top of the inner pot 102 and condenses into condensed water. The condensation chamber 106 stores the condensed water, thereby reducing the risk of condensed water dripping.
[0068] However, as the steam mode runs cumulatively, the condensed water in the condensation chamber accumulates continuously. When the amount of condensed water in the condensation chamber is relatively large, the condensed water will flow out through the vent between the condensation chamber and the inner pot and flow into the inner pot. If cooking is in progress, it will drip onto the food being cooked, affecting the cooking effect. Or after the user opens the door after cooking is completed, the water in the condensation chamber will continue to drip, which will bring a bad user experience.
[0069] Based on this, see Figure 7 The steam oven 10 provided in the embodiment of the present application further includes a water level detection device 71 and an electric heating film 72 .
[0070] Among them, Figure 7As shown, the water level detection device 71 is arranged on the side wall of the condensation chamber 106 near the bottom of the inner wall, and is used to send a conduction signal to the controller when the water level in the condensation chamber 106 reaches the installation position of the water level detection device. The electric heating film 72 is arranged on the bottom of the inner wall of the condensation chamber 106, and is used to heat the condensed water in the condensation chamber.
[0071] In some embodiments, the water level detection device 71 may be a water level detection electrode. When the water level in the condensation chamber reaches the installation position of the water level detection device, the two electrodes of the water level detection electrode are connected and a conduction signal is sent to the controller.
[0072] In some embodiments, see Figure 8 The electric heating film 72 includes a heating component 721 and a thermal protector 722 .
[0073] The heating component 721 is used to heat the condensed water in the condensation chamber. As a feasible implementation method, the heating component 721 can be a nickel-chromium heating wire.
[0074] The thermal protector 722 is a mechanical temperature protection element. When the temperature is greater than or equal to the preset disconnection temperature, the internal metal spring will deform, the contact will be disconnected, the circuit will be disconnected, and the heating component 721 will stop heating. When the temperature drops to the preset disconnection temperature, the internal metal spring will resume its deformation, the contact will be reconnected, the circuit will be reconnected, and the heating component 721 will start heating.
[0075] That is to say, when the temperature of the thermal protector is lower than the preset disconnection temperature, it is in the on state, and the heating component 721 starts heating; when the temperature of the thermal protector is greater than or equal to the preset disconnection temperature, it is in the off state, and the heating component 721 stops heating.
[0076] In this way, the problem of the electric heating film 72 being continuously heated, which may cause the temperature in the condensation chamber to be too high, can be avoided.
[0077] See also Fig. 9 In the steam oven 10 provided in the embodiment of the present application, the controller is configured to perform the following steps:
[0078] S901 , in response to receiving a conduction signal, controlling the electric heating film to start working.
[0079] When the controller receives the conduction signal sent by the water level detection device, it indicates that the condensed water in the condensation chamber has reached the installation position of the water level detection device, that is, there is a lot of condensed water in the condensation chamber. Therefore, in order to prevent the condensed water from overflowing the condensation chamber, the electric heating film is controlled to start working, heating the condensed water, evaporating it and dissipating it to the outside of the steam oven.
[0080] In some embodiments, the electric heating film will continue to heat up due to continuous operation, causing the temperature in the condensation chamber to be too high, and the steam cannot be condensed into condensed water.
[0081] Therefore, as a feasible implementation method, controlling the electric heating film to start working may be: controlling the electric heating film to perform intermittent work.
[0082] Exemplarily, the electric heating film may be operated for a first preset time and then stopped for a second preset time.
[0083] Controlling the electric heating film to perform intermittent operation can avoid the problem that the temperature in the condensation chamber is too high due to continuous heating, making it impossible for steam to condense in the condensation chamber.
[0084] S902: In response to the conduction signal being disconnected, the electric heating film is controlled to stop working.
[0085] If the conduction signal is disconnected, it indicates that the condensed water in the condensation chamber has dropped below the installation level of the water level detection device, that is, there is less condensed water in the condensation chamber. The electric heating film is not needed to heat the condensed water, so the electric heating film is controlled to stop working to avoid continuous operation of the electric heating film and waste of energy.
[0086] It can be seen that in the steam oven provided in the embodiment of the present application, a water level detection device is provided on the side wall of the bottom of the inner wall of the condensing chamber, and an electric heating film is provided at the bottom of the inner wall. In this way, when the water level in the condensing chamber reaches the installation position of the water level detection device, the water level detection device will send a conduction signal to the controller, and the controller will control the electric heating film to start working in response to the conduction signal, so that the condensed water in the condensing chamber evaporates and then dissipates to the outside of the steam oven.
[0087] That is to say, when there is a large amount of water in the condensation chamber of the steam oven provided in the embodiment of the present application, the amount of condensed water in the condensation chamber is reduced by the electric heating film, which can prevent the condensed water from overflowing and dripping onto the food being cooked, affecting the user experience.
[0088] In some embodiments, in order to maintain the surface temperature of the electric heating film within a small temperature difference within a certain period of time, that is, to keep the surface temperature of the electric heating film stable, the controller can control the electric heating film to perform intermittent work to reduce the number of times the temperature control is disconnected by the thermostat. However, in this solution, the electric heating film does not provide temperature feedback to the controller, resulting in large temperature control deviations, poor temperature stability on the surface of the electric heating film, and poor drying effects.
[0089] As a possible implementation, see Fig.10 The electric heating film 72 includes a heating component 721 and a temperature sensor 723. The heating component 721 is used to heat the condensed water in the condensation chamber; the temperature sensor 723 is used to detect the temperature of the electric heating film.
[0090] See also Fig.11 After controlling the electric heating film to start working, the controller is also configured to perform the following steps:
[0091] S1101, obtaining the temperature of the electric heating film.
[0092] Get the temperature of the electric heating film detected by the temperature sensor.
[0093] S1102, determining whether the temperature of the electric heating film is above a first preset temperature.
[0094] If yes, execute S1103; if no, return to execute S1101.
[0095] S1103, control the heating component to stop heating.
[0096] It should be understood that the first preset temperature is pre-set by the system, and in practical applications, the first preset temperature can be set according to needs, and the embodiment of the present application does not impose any limitation on this. For example, as a feasible implementation method, the first preset temperature can be 130°C, and if the temperature of the electric heating film is above 130°C, the heating component is controlled to stop heating.
[0097] If the temperature of the electric heating film is above the first preset temperature, it indicates that the temperature of the electric heating film is too high, that is, the temperature in the condensation chamber is too high. Since too high a temperature will affect the condensation effect of the condensation chamber, when the temperature of the electric heating film is above the first preset temperature, the electric heating film is controlled to stop working.
[0098] As a possible implementation, see Fig.12 , after S1103, the controller is further configured to execute:
[0099] S1104, determining whether the temperature of the electric heating film is below a second preset temperature.
[0100] If yes, execute S1105; if no, return to execute S1103.
[0101] S1105, control the heating component to start heating.
[0102] It should be understood that the second preset temperature is preset by the system, and the second preset temperature is lower than the first preset temperature. In practical applications, the second preset temperature can be set according to needs, and the embodiment of the present application does not impose any limitation on this. For example, as a feasible implementation method, the second preset temperature can be 90°C. If the temperature of the electric heating film is below 90°C, the heating component is controlled to start heating.
[0103] If the temperature of the electric heating film is below the second preset temperature, it indicates that the temperature of the electric heating film has dropped to the second preset temperature. Too low a temperature cannot evaporate the condensed water in the condensation chamber, so the heating component is controlled to start working to heat the condensed water in the condensation chamber.
[0104] In some embodiments, in order to allow steam to quickly discharge from the steam oven, a fan or other component may be used to promote air circulation, so that the steam can be quickly discharged from the steam oven to avoid steam accumulation inside the steam oven causing excessive air pressure inside the steam oven.
[0105] Based on this, see Fig.13 The steam oven 10 provided in the embodiment of the present application may further include: a cooling fan 112. Fig.13 As shown, the cooling fan 112 can be disposed at the condensing chamber 106. After the cooling fan 112 starts to work, it can promote air circulation in the condensing chamber, so that the steam in the condensing chamber is discharged from the steam oven.
[0106] As a possible implementation, see Fig.14 , the controller of the steam oven provided in the embodiment of the present application is further configured as follows:
[0107] S1401. In response to receiving a conduction signal, control the cooling fan to start working.
[0108] When the controller receives the conduction signal sent by the water level detection device, in order to prevent the condensed water from overflowing the condensation chamber, it controls the electric heating film to start working, heats the condensed water, and evaporates it into water vapor. In order to promote the discharge of water vapor from the steam oven, the cooling fan is controlled to start working to blow the water vapor out of the steam oven.
[0109] S1402: In response to the conduction signal being disconnected, the cooling fan is controlled to stop working.
[0110] If the conduction signal is disconnected, it indicates that the condensed water in the condensation chamber has dropped below the installation level of the water level detection device. The controller controls the electric heating film to stop working. At this time, the cooling fan is also controlled to stop working to avoid its continuous operation and waste of energy.
[0111] It can be seen that a cooling fan is arranged at the condensation chamber, and when the conduction signal sent by the water level detection device is received, the cooling fan is controlled to start working, so that the water vapor in the condensation chamber is quickly discharged from the steam oven, thereby preventing the water vapor from condensing into condensed water again in the condensation chamber.
[0112] In some embodiments, see Fig.15 The steam oven provided in the embodiment of the present application mainly performs the following steps during operation:
[0113] S1501. The user selects a steam-related mode on the operation interface and sets a target temperature and cooking time.
[0114] When a user uses a steam oven for cooking, he needs to select a steam-related mode on the operation interface and set the target temperature and cooking time when the steam oven is running. It should be understood that the embodiment of the present application does not limit the way in which the user selects the steam-related mode.
[0115] As a feasible implementation method, the user can select a steam-related mode on the control panel of the steam oven and set the target temperature and cooking time. As another feasible implementation method, the user can select a steam-related mode on a terminal device connected to the steam oven and set the target temperature and cooking time. The terminal device sends the user-configured data to the steam oven to enable the steam oven to operate.
[0116] S1502, the steam oven generates condensed water during operation, and the water level detection device sends a conduction signal.
[0117] When the steam oven is in steam mode, the steam generating component will generate a large amount of water vapor, which will pass through the cooking chamber and enter the condensation chamber from the air outlet at the top of the inner pot to condense into condensed water. After the steam mode runs for a long time, the water level in the condensation chamber will reach the installation position of the water level detection device, causing the water level detection device to send a conduction signal to the controller.
[0118] S1503, in response to the conduction signal, controlling the electric heating film to start working.
[0119] After receiving the conduction signal sent by the water level detection device, the controller controls the electric heating film to start working, heating the condensed water in the condensation chamber, so that the condensed water vaporizes into water vapor and is discharged from the steam oven, that is, the water level in the condensation chamber drops.
[0120] S1504: Whether the temperature detected by the temperature sensor is greater than T1.
[0121] Wherein, T1 is a first preset temperature. If the temperature detected by the temperature sensor is greater than T1, execute S1505; if not, return to execute S1503.
[0122] S1505, control the electric heating film to stop working.
[0123] If the temperature detected by the temperature sensor is greater than T1, it indicates that the temperature of the electric heating film is too high, that is, the temperature in the condensation chamber is too high. Since too high temperature will affect the condensation effect of the condensation chamber, when the temperature detected by the temperature sensor is greater than T1, the electric heating film is controlled to stop working.
[0124] S1506: Is the temperature detected by the temperature sensor less than T2?
[0125] Among them, T2 is the second preset temperature, and T2 < T1. If the temperature detected by the temperature sensor is less than T2, execute S1507.
[0126] S1507. Control the electric heating film to start working.
[0127] If the temperature detected by the temperature sensor is less than T2, it indicates that the temperature of the electric heating film has dropped to T2. Too low a temperature cannot cause the condensed water in the condensation chamber to evaporate. Therefore, control the electric heating film to start working to heat the condensed water in the condensation chamber.
[0128] It can be seen that in the steam oven provided by the embodiment of the present application, the temperature of the electric heating film is controlled within the range of [T2, T1]. When the temperature of the electric heating film is higher than T1, heating stops; when it is lower than T2, heating starts. Within this range, the disconnection temperature of the thermal protector will not be triggered, and at the same time, the continuous and stable operation of the electric heating film can be ensured.
[0129] S1508. In response to the disconnection of the conduction signal, control the electric heating film to stop working.
[0130] The disconnection of the conduction signal indicates that the water level of the condensed water in the condensation chamber has dropped below the installation position of the water level detection device. At this time, there is no risk of the condensed water overflowing, so control the electric heating film to stop working.
[0131] It should be understood that when the steam mode ends, the steam in the inner cavity continuously flows into the condensation chamber through the air outlet holes at the top of the inner cavity, and condensed water will still be generated in the condensation chamber. That is to say, during and after the operation of the steam mode, there is a risk of the condensed water in the condensation chamber overflowing. Therefore, the operation of the electric heating film has nothing to do with the cooking duration set by the user, etc. The controller controls the operation of the electric heating film relying on the conduction signal sent by the water level detection device.
[0132] The embodiment of the present application also provides a control method for a steam oven, which is applicable to the steam oven provided in the above embodiment, as Fig.16 shown, and includes the following steps:
[0133] S1601. In response to receiving the conduction signal, control the electric heating film to start working.
[0134] When the controller receives the conduction signal sent by the water level detection device, it indicates that the condensed water in the condensation chamber has reached the installation position of the water level detection device, that is, there is more condensed water in the condensation chamber. Therefore, in order to prevent the condensed water from overflowing from the condensation chamber, control the electric heating film to start working to heat the condensed water so that it evaporates and vaporizes and then disperses to the outside of the steam oven.
[0135] S1602. In response to the disconnection of the conduction signal, control the electric heating film to stop working.
[0136] If the conduction signal is disconnected, it indicates that the condensed water in the condensation chamber has dropped below the installation level of the water level detection device, that is, there is less condensed water in the condensation chamber. The electric heating film is not needed to heat the condensed water, so the electric heating film is controlled to stop working to avoid continuous operation of the electric heating film and waste of energy.
[0137] As a possible implementation, see Fig.17 After S1601, the control method provided in the embodiment of the present application further includes the following steps:
[0138] S1701, obtaining the temperature of the electric heating film.
[0139] S1702: If the temperature of the electric heating film is above the first preset temperature, control the heating component to stop heating.
[0140] If the temperature of the electric heating film is above the first preset temperature, it indicates that the temperature of the electric heating film is too high, that is, the temperature in the condensation chamber is too high. Since too high a temperature will affect the condensation effect of the condensation chamber, when the temperature of the electric heating film is above the first preset temperature, the electric heating film is controlled to stop working.
[0141] As a possible implementation, see Fig.18 After S1702, the control method provided in the embodiment of the present application further includes the following steps:
[0142] S1703: If the temperature of the electric heating film is below the second preset temperature, control the heating component to start heating.
[0143] The second preset temperature is lower than the first preset temperature.
[0144] If the temperature of the electric heating film is below the second preset temperature, it indicates that the temperature of the electric heating film has dropped to the second preset temperature. Too low a temperature cannot evaporate the condensed water in the condensation chamber, so the heating component is controlled to start working to heat the condensed water in the condensation chamber.
[0145] As a possible implementation, see Fig.19 The control method provided in the embodiment of the present application also includes the following steps:
[0146] S1901. In response to receiving a conduction signal, control the cooling fan to start working.
[0147] When the controller receives the conduction signal sent by the water level detection device, in order to prevent the condensed water from overflowing the condensation chamber, it controls the electric heating film to start working, heats the condensed water, and evaporates it into water vapor. In order to promote the discharge of water vapor from the steam oven, the cooling fan is controlled to start working to blow the water vapor out of the steam oven.
[0148] S1902: In response to the conduction signal being disconnected, the cooling fan is controlled to stop working.
[0149] As a feasible implementation method, S1601 specifically includes: in response to the conduction signal, controlling the electric heating film to perform intermittent operation.
[0150] If the conduction signal is disconnected, it indicates that the condensed water in the condensation chamber has dropped below the installation level of the water level detection device. The controller controls the electric heating film to stop working. At this time, the cooling fan is also controlled to stop working to avoid its continuous operation and waste of energy.
[0151] The present application also provides an electronic device. Fig. 20 The electronic device 200 includes: one or more processors 201; one or more memories 202, wherein the one or more memories 202 are used to store computer program codes, and the computer program codes include computer instructions; when the one or more processors 201 execute the computer instructions, the electronic device 200 executes the various steps of the method shown in the above method embodiment.
[0152] An embodiment of the present application also provides a computer-readable storage medium, which stores computer instructions. When the computer instructions are executed on an electronic device, the electronic device executes each step performed by the electronic device in the method flow shown in the above method embodiment.
[0153] An embodiment of the present application also provides a computer program product, which includes computer instructions. When the computer instructions are executed on an electronic device, the electronic device executes each step executed by the electronic device in the method flow shown in the above method embodiment.
[0154] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer execution instruction is loaded and executed on the computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instruction can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instruction can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that can be accessed by the computer or a data storage device such as a server, data center, etc. that contains one or more servers that can be integrated with the medium. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state disk (SSD)), etc.
[0155] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.
Claims
1. A steam oven, characterized in that: include: The inner pot has a steaming and baking cavity; An air outlet is arranged at the top of the inner container; A condensation chamber, the condensation chamber is connected to the steaming and baking chamber through the air outlet and is used to store condensed water; as well as, A water level detection device is arranged on a side wall near the bottom of the inner wall of the condensing chamber, and is used to send a conduction signal when the water level in the condensing chamber reaches the installation position of the water level detection device; An electric heating film, arranged at the bottom of the inner wall of the condensation chamber, for heating the condensed water in the condensation chamber; A controller, electrically connected to the water level detection device and the electric heating film; The controller is configured to: In response to receiving the conduction signal, controlling the electric heating film to start working; In response to the conduction signal being disconnected, the electric heating film is controlled to stop working.
2. The steam oven according to claim 1, characterized in that: The electric heating film includes a heating component and a temperature sensor; The heating component is used to heat the condensed water in the condensation chamber; The temperature sensor is used to detect the temperature of the electric heating film; After controlling the electric heating film to start working, the controller is further configured to: Obtaining the temperature of the electric heating film; If the temperature of the electric heating film is above a first preset temperature, the heating component is controlled to stop heating.
3. The steam oven according to claim 2, characterized in that: After controlling the heating component to stop heating, the controller is further configured to: If the temperature of the electric heating film is lower than a second preset temperature, the heating component is controlled to start heating, and the second preset temperature is lower than the first preset temperature.
4. The steam oven according to claim 3, characterized in that: The electric heating film also includes a thermal protector connected in series with the heating assembly; The thermal protector is in an on state when the temperature is lower than a preset disconnection temperature; the preset disconnection temperature is higher than the first preset temperature; The thermal protector is in a disconnected state when the temperature is greater than or equal to the preset disconnection temperature.
5. The steam oven according to any one of claims 1 to 4, characterized in that: The steam oven also includes: a cooling fan, disposed at the condensing chamber, for discharging the steam in the condensing chamber out of the steam oven; The controller is also configured to: In response to receiving the conduction signal, controlling the cooling fan to start working; In response to the conduction signal being disconnected, the cooling fan is controlled to stop working.
6. The steam oven according to claim 5, characterized in that: The controlling the electric heating film to start working is specifically as follows: The electric heating film is controlled to perform intermittent operation.
7. A method for controlling a steam oven, characterized in that: The steam oven comprises: The inner pot has a steaming and baking cavity; An air outlet is arranged at the top of the inner container; A condensation chamber, the condensation chamber is connected to the steaming and baking chamber through the air outlet and is used to store condensed water; as well as, A water level detection device is arranged on a side wall near the bottom of the inner wall of the condensing chamber, and is used to send a conduction signal when the water level in the condensing chamber reaches the installation position of the water level detection device; An electric heating film, arranged at the bottom of the inner wall of the condensation chamber, for heating the condensed water in the condensation chamber; A controller, electrically connected to the water level detection device and the electric heating film; The control method comprises: In response to receiving the conduction signal, controlling the electric heating film to start working; In response to the conduction signal being disconnected, the electric heating film is controlled to stop working.
8. The control method according to claim 7, characterized in that: The electric heating film includes a heating component and a temperature sensor; The heating component is used to heat the condensed water in the condensation chamber; The temperature sensor is used to detect the temperature of the electric heating film; After controlling the electric heating film to start working, the control method further includes: Obtaining the temperature of the electric heating film; If the temperature of the electric heating film is above a first preset temperature, the heating component is controlled to stop heating.
9. The control method according to claim 8, characterized in that: After controlling the heating component to stop heating, the control method further includes: If the temperature of the electric heating film is lower than a second preset temperature, the heating component is controlled to start heating, and the second preset temperature is lower than the first preset temperature.
10. The control method according to any one of claims 7 to 9, characterized in that: The steam oven also includes: a cooling fan, disposed at the condensing chamber, for discharging the steam in the condensing chamber out of the steam oven; The control method further includes: in response to receiving the conduction signal, controlling the cooling fan to start working; In response to the conduction signal being disconnected, the cooling fan is controlled to stop working.