Steaming oven

Abstract

The utility model belongs to the technical field of steaming ovens, and particularly relates to a steaming oven. According to the steaming oven, the water outlet device is arranged, the water outlet nozzle is arranged above the impeller or on the front side of the upper portion of the impeller, and the water flow is directly and efficiently heated through the heating piece surrounding the impeller, so that liquid water can rapidly absorb high-temperature heat and is vaporized, the steam generation time is greatly shortened, and the steam generation efficiency is improved. The user can start cooking without waiting for a long time, and the method is particularly suitable for scenes where food materials need to be rapidly processed; the fan device fully mixes vaporized steam with hot gas in the airflow heating chamber to form heating airflow with uniform temperature, and the heating airflow is stably conveyed to the cooking chamber through the airflow conveying port, so that the problem of non-uniform heating of food materials caused by slow steam generation or non-uniform steam distribution of a traditional steaming oven is effectively avoided; the taste and the cooking effect of the food are obviously improved.

Description

Technical Field

[0001] This utility model belongs to the field of steam oven technology, specifically relating to steam ovens. Background Technology

[0002] Existing steam ovens typically use heating elements to heat water in a boiler to generate steam. While this technology enables basic steaming, it suffers from significant efficiency issues in practical use. Specifically, because the water in the boiler requires a considerable amount of time to boil and generate sufficient steam pressure, steam production is slow, requiring users to wait a long time before cooking can begin. This not only reduces cooking efficiency but also impacts the user experience, especially in scenarios requiring rapid food preparation, where the response speed of traditional steam ovens often falls short of demands.

[0003] In addition, slow steam generation may cause uneven heating of food or a decline in taste. For example, the food may be exposed to a low temperature while waiting for steam, which may affect the final cooking result and lead to an unsatisfactory user experience. Utility Model Content

[0004] The purpose of this invention is to overcome the problem of slow steam generation speed when the existing steam oven starts up, and to provide a steam oven that generates steam quickly when starting up.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A steam oven includes a body, a fan unit, a heating module, and a water outlet device. The body includes a control module and an airflow heating chamber and a cooking chamber arranged adjacent to each other on the inner side, connected by an airflow inlet. The fan unit includes an impeller and a motor that drives the impeller. The impeller is located in the airflow heating chamber and is positioned corresponding to the airflow inlet. The heating module includes at least one heating element arranged around the outer periphery of the impeller for heating the gas in the airflow heating chamber. The water outlet device includes an inlet solenoid valve connected to a water source and an outlet pipe connected to the inlet solenoid valve. The outlet pipe has a water outlet nozzle located above or in front of the impeller. The control module controls the outlet nozzle to dispense water at a preset flow rate or intermittently via the inlet solenoid valve, so that the liquid water discharged from the outlet nozzle absorbs the heat generated by the heating module and vaporizes into steam. The fan unit mixes the vaporized steam discharged from the outlet nozzle with the heated gas to form a heated airflow that is delivered to one side of the cooking chamber.

[0007] Compared to existing technologies, this steam oven, by incorporating a water outlet device positioned above or in front of the impeller, and utilizing heating elements surrounding the impeller to directly and efficiently heat the water flow, allows the liquid water to quickly absorb high-temperature heat and vaporize, significantly shortening steam generation time. Users can begin cooking without long waits, making it particularly suitable for scenarios requiring rapid food preparation. Furthermore, the fan device thoroughly mixes the vaporized steam with the hot air inside the heating chamber, forming a uniformly heated airflow, which is then stably delivered to the cooking chamber through the airflow outlet. This effectively avoids the uneven heating problems caused by slow or uneven steam generation in traditional steam ovens, significantly improving food taste and cooking results. Additionally, the control module precisely regulates the water outlet flow rate via an inlet solenoid valve or employs an intermittent water outlet method to ensure the water flow matches the heat from the heating module, avoiding water waste, improving heat utilization, reducing energy consumption, and guaranteeing stable steam generation.

[0008] Furthermore, it also includes a partition baffle inside the machine body, which divides the inside of the machine body into the airflow heating chamber and the cooking chamber. The airflow inlet is located on the partition baffle, and the partition baffle is also provided with airflow circulation holes that connect the airflow heating chamber and the cooking chamber respectively. With this configuration, the interconnected structure of the airflow heating chamber, the cooking chamber and the airflow circulation holes forms a hot air circulation. The steam and hot air mixed airflow flows efficiently under the drive of the fan, which significantly improves the heat utilization rate, shortens the cooking time and reduces energy consumption.

[0009] Furthermore, the partition baffle is located on the front side of the impeller and also includes a flow guide frame disposed on the partition baffle and located above the airflow inlet. The flow guide frame has a flow guide cavity with openings at both the upper and lower ends. The upper end of the flow guide cavity has a flow guide inlet, and the lower end of the flow guide cavity has a flow guide outlet. The water outlet is located above the flow guide inlet, and the area of ​​the flow guide inlet is larger than the area of ​​the flow guide outlet. With this configuration, by setting the flow guide frame and its upper and lower opening flow guide cavities, the water flow or steam discharged from the water outlet can be accurately guided to the high-temperature area near the impeller, ensuring that the liquid water fully absorbs the heat of the heating module and vaporizes rapidly.

[0010] Furthermore, the flow guiding cavity is provided with a flow guiding slope, which is arranged at an angle from top to bottom along the side close to the impeller. With this arrangement, the inclined design of the flow guiding slope causes water flow or steam to converge along the slope towards the impeller, further enhancing the mixing effect of steam and hot air, while reducing water droplet splashing or steam diffusion loss, ensuring that steam is efficiently delivered to the cooking chamber.

[0011] Furthermore, it also includes an optional steam generating module, which comprises a furnace body and a steam generator. The furnace body has an inner furnace cavity and a water inlet pipe connected to the furnace cavity at the bottom. A steam outlet is located on one side of the upper part of the furnace body. The steam generator is located at the bottom of the furnace cavity, and the steam outlet is connected to the airflow heating chamber. The fan device is used to mix the steam generated by the steam generating module, the vaporized steam discharged from the water outlet, and the heated gas to form a heated airflow that is delivered to the cooking chamber. With this configuration, the manufacturer can select a steam generating module according to user needs to meet dual steam generation modes, improving cooking flexibility and efficiency. In addition, by adding an optional steam generating module, users can choose between a rapid steam mode (direct water vaporization from the water outlet) or a high-volume steam mode (continuous steam supply from the steam generating module) to meet the cooking needs of different ingredients (such as rapid steaming or long-term stewing), satisfying user requirements.

[0012] Furthermore, the steam generating module includes a flow guiding structure located within the furnace cavity. This flow guiding structure includes a partition plate and a guide plate. The partition plate divides the furnace cavity into a lower steam generating chamber and an upper steam discharge chamber. The steam outlet is located within the steam discharge chamber. The guide plate is vertically connected to one end of the partition plate, forming a flow guiding channel between the guide plate and the furnace cavity sidewall. This allows the steam generated in the steam generating chamber to flow through both the flow guiding channel and the steam discharge chamber before exiting through the steam outlet. This configuration, through the flow guiding structure, achieves efficient steam generation and directional steam delivery. The partition plate divides the furnace cavity into the steam generating chamber and the steam discharge chamber, allowing the steam to be generated at the bottom and naturally rise to the steam discharge chamber, preventing insufficiently vaporized water droplets from directly entering the cooking chamber and ensuring uniform steam drying. Additionally, the flow guiding channel formed by the guide plate and the furnace cavity sidewall guides the steam along a specific path, reducing turbulence and heat loss, and improving steam delivery efficiency. Moreover, the steam needs to flow through the guide channel and steam exhaust chamber before being discharged. During this process, residual water droplets can fall back into the steam generation chamber due to gravity, and only dry steam is discharged from the outlet, avoiding excessive humidity or condensation in the cooking chamber and making the surface moisture of the food more uniform.

[0013] Furthermore, the water inlet solenoid valve is connected to the water inlet pipe, and a drain solenoid valve is connected to the bottom of the furnace body. The drain solenoid valve is connected to an external drain pipe. A water level probe is installed inside the furnace body. By setting the water level probe, the amount of water in the furnace cavity can be monitored and controlled in real time, and the water inlet solenoid valve can be triggered in time to replenish the water source, so as to avoid dry burning and damage to the steam generator.

[0014] Furthermore, the heating module includes heating elements located at the bottom of several furnace cavities. Each heating element is a multi-section bent heating tube, and each heating element is provided with a second electrical terminal located on the outside of the furnace body. With this arrangement, multiple heating elements are provided, ensuring sufficient steam generation from the steam generating module.

[0015] Furthermore, the machine body has a first component mounting area located outside the airflow heating chamber and the cooking chamber. A connecting bracket is provided on the outside of the steam generating module, allowing the steam generating module to be detachably mounted within the first component mounting area via the connecting bracket. This design allows the manufacturer to select and install a steam generating module according to user needs, thus meeting the user's specific requirements.

[0016] Furthermore, the first component mounting area is equipped with several cooling fans; with this arrangement, the cooling fans can cool down the circuits and electrical components in the first component mounting area, preventing high temperatures from damaging the circuits and electrical components.

[0017] Furthermore, a water collection inlet is provided at the bottom of the cooking chamber, and the machine body also has a second component installation area located below the airflow heating chamber and the cooking chamber. The second component installation area has a water receiving trough connected to the water collection inlet, and the water receiving trough is equipped with a drain connector connected to an external drain pipe. The first component installation area has an exhaust pipe connected to the water receiving trough, and the exhaust pipe extends out of the top of the machine body. With this arrangement, the water receiving trough can collect the condensed liquid water in the cooking chamber to avoid water accumulation. In addition, the exhaust pipe can stabilize the air pressure in the cooking chamber and prevent users from being injured by high-pressure steam when opening the steam oven.

[0018] Furthermore, the machine body is provided with a food inlet with a side opening, and the food inlet is equipped with a door for opening or closing the steam oven; a water collection trough is provided below the food inlet, the length of the water collection trough is adapted to the width of the food inlet, and the water collection trough is provided with a water outlet pipe connected to an external drain pipe; with this configuration, the water collection trough can collect the condensate water near the oven door in the cooking chamber, preventing the condensate water from spilling onto the platform when the oven door is opened.

[0019] Furthermore, the heating element is provided in multiple units, and the heating element is a heating tube arranged in a ring shape. The end of the heating element is provided with a first electrical terminal. With this arrangement, by arranging the heating element around the impeller and combining it with the forced airflow circulation of the fan device, the integrated design of heating, vaporization and airflow transportation is realized. This not only saves space but also further improves the thermal response speed of the system, and significantly improves the user experience. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a steam oven.

[0021] Figure 2 A structural diagram of a steam oven without the oven door.

[0022] Figure 3 Internal structure of a steam oven Figure 1 .

[0023] Figure 4 Internal structure of a steam oven Figure 2 .

[0024] Figure 5 This is a schematic diagram of a fan unit.

[0025] Figure 6 This is a schematic diagram of a partition.

[0026] Figure 7 This is a schematic diagram of the front side of the steam generation module.

[0027] Figure 8 This is a schematic diagram of the rear side of the steam generation module.

[0028] Figure 9 This is a diagram of the internal structure of the steam generation module.

[0029] Labeling Explanation: 1. Main Body; 2. Steam Generating Module; 3. Fan Unit; 4. Airflow Heating Chamber; 5. Cooking Chamber; 6. Airflow Inlet; 7. Furnace Body; 8. Water Inlet Pipe; 9. Steam Outlet; 10. Furnace Chamber; 11. Impeller; 12. Motor; 13. Heating Element; 4. Dividing Baffle; 5. Airflow Circulation Hole; 6. First Electrical Terminal; 7. Dividing Plate; 8. Guide Plate; 9. Steam Generating Chamber; 10. Steam Exhaust Chamber; 11. Guide Channel; 12. Water Inlet Solenoid Valve; 13. Drainage Solenoid Valve; 14. Water Level. Probe 211, heating element 29, second electrical terminal 291, first element mounting area 15, connecting frame 213, cooling fan 151, water tank 16, water inlet 161, drain connector 162, exhaust pipe 163, food inlet 17, box door 172, water tank 19, water outlet pipe 191, second element mounting area 18, water outlet device 6, water outlet pipe 61, water outlet 62, flow guide frame 63, flow guide cavity 64, flow guide inlet 65, flow guide outlet 66, flow guide slope 67. Detailed Implementation

[0030] The specific embodiments of this utility model are described below with reference to the accompanying drawings. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] See Figures 1 to 9The steam oven of this utility model includes a body 1, a fan device 3, a heating module, and a water outlet device 6. The body 1 includes a control module and an airflow heating chamber 11 and a cooking chamber 12 arranged adjacent to each other on the inner side. The airflow heating chamber 11 and the cooking chamber 12 are connected through an airflow inlet 142. The fan device 3 includes an impeller 31 and a motor 32 that drives the impeller 31 to rotate. The impeller 31 is located in the airflow heating chamber 11 and is correspondingly arranged with respect to the airflow inlet 142. The heating module includes at least one heating element 4 arranged around the outer periphery of the impeller 31 for heating the gas in the airflow heating chamber 11. The water outlet device 6 includes an inlet solenoid valve 51 connected to a water source and an outlet pipe 61191 connected to the inlet solenoid valve 51. The outlet pipe 61191 has an outlet nozzle 62 at its end, which is located above or in front of the impeller 31. The control module controls the outlet nozzle 62 to discharge water at a preset flow rate or in an intermittent manner through the inlet solenoid valve 51, so that the liquid water discharged from the outlet nozzle 62 absorbs the heat generated by the heating module and vaporizes into steam. The fan device 3 is used to mix the vaporized steam discharged from the outlet nozzle 62 with the heated gas to form a heated airflow that is delivered to one side of the cooking chamber 12.

[0032] Compared with existing technologies, the steam oven of this invention, by setting a water outlet device 6 and positioning the water outlet 62 above or above the front of the impeller 31, and utilizing the heating element 4 surrounding the impeller 31 to directly and efficiently heat the water flow, allows the liquid water to quickly absorb high-temperature heat and vaporize, significantly shortening the steam generation time. Users can start cooking without long waiting times, making it especially suitable for scenarios requiring rapid food processing. Moreover, the fan device 3 fully mixes the vaporized steam with the hot gas in the airflow heating chamber 11, forming a uniformly heated airflow, which is stably delivered to the cooking chamber 12 through the airflow delivery port 142. This effectively avoids the problem of uneven heating of food caused by slow or uneven steam generation in traditional steam ovens, significantly improving the taste and cooking effect of the food. In addition, the control module precisely adjusts the flow rate of the water outlet 62 through the water inlet solenoid valve 51 or uses an intermittent water outlet mode to ensure that the water flow matches the heat of the heating module, avoiding water waste, improving heat energy utilization, reducing energy consumption, and ensuring the stability of steam generation.

[0033] See Figures 1 to 6In one embodiment, a partition baffle 14 is provided inside the body 1, which divides the inner side of the body 1 into the airflow heating chamber 11 and the cooking chamber 12. The airflow inlet 142 is provided on the partition baffle 14, and the partition baffle 14 is also provided with airflow circulation holes 141 that connect the airflow heating chamber 11 and the cooking chamber 12 respectively. With this arrangement, the interconnected structure of the airflow heating chamber 11, the cooking chamber 12 and the airflow circulation holes 141 forms a hot air circulation. The mixed airflow of steam and hot air flows efficiently under the drive of the fan, which significantly improves the heat utilization rate, shortens the cooking time and reduces energy consumption.

[0034] See Figures 2 to 6 In one embodiment, the partition baffle 14 is located in front of the impeller 31, and also includes a flow guide 63 disposed on the partition baffle 14 and located above the airflow inlet 142. The flow guide 63 has a flow guide cavity 64 with openings at both the upper and lower ends on its inner side. The upper end of the flow guide cavity 64 has a flow guide inlet 65, and the lower end of the flow guide cavity 64 has a flow guide outlet 66. The water outlet 62 is located above the flow guide inlet 65, and the area of ​​the flow guide inlet 65 is larger than the area of ​​the flow outlet 66. With this configuration, by setting the flow guide 63 and the upper and lower opening flow guide cavities 64, the water flow or steam discharged from the water outlet 62 can be accurately guided to the high-temperature area near the impeller 31, ensuring that the liquid water fully absorbs the heat of the heating module and vaporizes rapidly.

[0035] See Figures 2 to 6 In one embodiment, the guide cavity 64 is provided with a guide slope 67, which is arranged at an angle from top to bottom along the side close to the impeller 31. With this arrangement, the inclined design of the guide slope 67 causes water flow or steam to converge along the slope towards the impeller 31, further enhancing the mixing effect of steam and hot air, while reducing water droplet splashing or steam diffusion loss, and ensuring that steam is efficiently delivered to the cooking chamber 12.

[0036] See Figures 7 to 9In one embodiment, an optional steam generating module 2 is also included. The steam generating module 2 includes a furnace body 21 and a steam generator. The furnace body 21 has an inner furnace cavity 24 and a water inlet pipe 22 connected to the furnace cavity 24 at the bottom. A steam outlet 23 is provided on the upper side of the furnace body 21. The steam generator is located at the bottom of the furnace cavity 24, and the steam outlet 23 is connected to the airflow heating chamber 11. The fan device 3 is used to mix the steam generated by the steam generating module 2, the vaporized steam discharged from the water outlet 62, and the heated gas to form a heated airflow that is delivered to the cooking chamber 12. With this configuration, the manufacturer can select the steam generating module 2 according to the user's needs to meet the dual steam generation mode, improve cooking flexibility and efficiency. In addition, by adding the optional steam generating module 2, the user can choose the rapid steam mode (the water outlet 62 directly sprays water for vaporization) or the large steam mode (the steam generating module 2 continuously supplies steam) according to the user's needs to meet the cooking needs of different ingredients (such as rapid steaming or long-term stewing).

[0037] See Figures 2 to 6 In one embodiment, the steam generating module 2 includes a flow guiding structure located within the furnace cavity 24. The flow guiding structure includes a partition plate 25 and a flow guiding plate 26. The partition plate 25 is disposed within the furnace cavity 24, dividing the furnace cavity 24 into a steam generating chamber 27 located on the lower side and a steam exhaust chamber 28 located on the upper side. The steam outlet 23 is located within the steam exhaust chamber 28. The flow guiding plate 26 is vertically connected to one end of the partition plate 25, and a flow guiding channel 261 is formed between the flow guiding plate 26 and the side wall of the furnace cavity 24, so that the steam generated in the steam generating chamber 27 flows through the flow guiding channel 261 and the steam exhaust chamber 28 respectively, and is then discharged from the steam outlet 23. With this configuration, the efficient generation and directional delivery of steam are achieved by setting the flow guiding structure. The partition plate 25 divides the furnace cavity 24 into the steam generating chamber 27 and the steam exhaust chamber 28, so that the steam is generated in a concentrated manner at the bottom and naturally rises to the steam exhaust chamber 28, avoiding the direct entry of insufficiently vaporized water droplets into the cooking chamber 12, and ensuring uniform steam drying. In addition, the guide channel 261 formed by the baffle 26 and the side wall of the furnace cavity 24 guides the steam to flow along a specific path, reducing turbulence and heat loss, and improving steam delivery efficiency. Moreover, before being discharged, the steam must flow through the guide channel 261 and the steam discharge chamber 28. During this process, residual water droplets can fall back to the steam generation chamber 27 due to gravity, and only dry steam is discharged from the outlet, avoiding excessive humidity or condensation accumulation in the cooking chamber 12, and making the surface moisture of the food more uniform.

[0038] See Figures 2 to 6In one embodiment, the water inlet solenoid valve 51 is a conventional one-inlet-multiple-outlet water inlet solenoid valve 51, which can control the water output of multiple outlets separately. The water inlet solenoid valve 51 is connected to the water inlet pipe 22, and a drain solenoid valve 212 is connected to the bottom of the furnace body 21. The drain solenoid valve 212 is connected to an external drain pipe. A water level probe 211 is provided inside the furnace body 21. By setting the water level probe 211, the water volume in the furnace cavity 24 can be monitored and controlled in real time, and the water inlet solenoid valve 51 can be triggered in time to replenish the water source, so as to avoid dry burning and damage to the steam generator.

[0039] See Figures 2 to 6 In one embodiment, the heating module includes heating elements 29 disposed at the bottom of several furnace cavities 24. The heating elements 29 are multi-section bent heating tubes. The heating elements 29 are provided with a second electrical terminal 291 located outside the furnace body 21. With this arrangement, there are multiple heating elements 29, and the steam generation module 2 generates sufficient steam.

[0040] See Figures 2 to 6 In one embodiment, the body 1 has a first component mounting area 15 located outside the airflow heating chamber 11 and the cooking chamber 12. A connecting bracket 213 is provided on the outside of the steam generating module 2, and the steam generating module 2 is detachably mounted within the first component mounting area 15 via the connecting bracket 213. This configuration allows the manufacturer to select and install the steam generating module 2 according to user needs, thus meeting the user's usage requirements.

[0041] See Figures 2 to 6 In one embodiment, a plurality of cooling fans 151 are provided in the first component mounting area 15; with this arrangement, the cooling fans 151 can cool down the circuits and electrical components of the first component mounting area 15, and avoid high temperature from damaging the circuits and electrical components.

[0042] See Figures 2 to 6 In one embodiment, the cooking chamber 12 is provided with a water collection port 161 at the bottom, and the body 1 is also provided with a second component mounting area 18 located below the airflow heating chamber 11 and the cooking chamber 12. The second component mounting area 18 is provided with a water receiving trough 16 communicating with the water collection port 161. The water receiving trough 16 is equipped with a drain connector 162 communicating with an external drain pipe. The first component mounting area 15 is provided with an exhaust pipe 163 communicating with the water receiving trough 16. The exhaust pipe 163 extends out of the top of the body 1. With this arrangement, the water receiving trough 16 can collect the condensed liquid water in the cooking chamber 12 to avoid water accumulation. In addition, the exhaust pipe 163 can stabilize the air pressure in the cooking chamber 12 to prevent users from being injured by high-pressure steam when opening the steam oven.

[0043] See Figures 2 to 6In one embodiment, the body 1 is provided with a food inlet 17 with a side opening, and the food inlet 17 is equipped with a door 172 for opening or closing the steam oven; a water collection trough 19 is provided on the lower side of the food inlet 17, the length of the water collection trough 19 is adapted to the width of the food inlet 17, and the water collection trough 19 is provided with a water outlet pipe 61191 connected to an external drain pipe; with this arrangement, the water collection trough 19 can collect the condensate water near the door 172 of the cooking chamber 12, and prevent the condensate water from spilling onto the platform when the door 172 is opened.

[0044] See Figures 2 to 6 In one embodiment, the heating element 4 is provided in a plurality of units, and the heating element 4 is a heating tube arranged in a ring. The end of the heating element 4 is provided with a first electrical terminal 41. With this arrangement, by arranging the heating element 4 around the impeller 31 and combining it with the forced airflow circulation of the fan device 3, the integrated design of heating, vaporization and airflow transportation is realized. This not only saves space, but also further improves the thermal response speed of the system, and significantly improves the user experience.

[0045] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A steam oven, characterized in that, include: The machine body includes a control module and an airflow heating chamber and a cooking chamber arranged adjacent to each other on the inner side. The airflow heating chamber and the cooking chamber are connected through an airflow inlet. The fan unit includes an impeller and a motor that drives the impeller to rotate. The impeller is located in the airflow heating chamber and is positioned corresponding to the airflow inlet. The heating module includes at least one heating element arranged around the outer periphery of the impeller for heating the gas in the airflow heating chamber; The water outlet device includes an inlet solenoid valve connected to a water source and an outlet pipe connected to the inlet solenoid valve. The outlet pipe is equipped with an outlet nozzle at its end, which is located above or on the front side above the impeller. The control module is used to control the outlet nozzle to discharge water at a preset flow rate or in an intermittent manner through the inlet solenoid valve, so that the liquid water discharged from the outlet nozzle absorbs the heat generated by the heating module and vaporizes into steam. The fan unit is used to mix the vaporized steam discharged from the water outlet with the heated gas to form a heated airflow that is delivered to one side of the cooking chamber.

2. The steam oven according to claim 1, characterized in that, It also includes a partition baffle installed inside the machine body, which divides the inside of the machine body into the airflow heating chamber and the cooking chamber. The airflow inlet is installed on the partition baffle, and the partition baffle is also provided with airflow circulation holes that connect the airflow heating chamber and the cooking chamber respectively.

3. The steam oven according to claim 2, characterized in that, The partition baffle is located in front of the impeller and also includes a flow guide frame disposed on the partition baffle and located above the airflow inlet. The flow guide frame has a flow guide cavity with openings at both the upper and lower ends. The upper end of the flow guide cavity has a flow guide inlet and the lower end of the flow guide cavity has a flow guide outlet. The water outlet is located above the flow guide inlet and the area of ​​the flow guide inlet is larger than the area of ​​the flow guide outlet.

4. The steam oven according to claim 3, characterized in that, The flow guiding cavity is provided with a flow guiding slope, which is arranged inclinedly from top to bottom along the side close to the impeller.

5. The steam oven according to claim 1, characterized in that, It also includes an optional steam generating module, which includes a furnace body and a steam generator. The furnace body has an inner furnace cavity and a water inlet pipe connected to the furnace cavity at the bottom. A steam outlet is provided on one side of the upper part of the furnace body. The steam generator is located at the bottom of the furnace cavity, and the steam outlet is connected to the airflow heating chamber. The fan device is used to mix the steam generated by the steam generation module, the vaporized steam discharged from the water outlet, and the heated gas to form a heated airflow that is delivered to one side of the cooking chamber.

6. The steam oven according to claim 5, characterized in that, The steam generating module includes a flow guiding structure located inside the furnace cavity; The flow guiding structure includes a partition plate and a flow guide plate. The partition plate is located in the furnace cavity and divides the furnace cavity into a steam generation chamber located on the lower side and a steam discharge chamber located on the upper side. The steam outlet is located in the steam discharge chamber. The flow guide plate is vertically connected to one end of the partition plate. A flow guiding channel is formed between the flow guide plate and the side wall of the furnace cavity, so that the steam generated in the steam generation chamber flows through the flow guiding channel and the steam discharge chamber respectively, and then is discharged from the steam outlet.

7. The steam oven according to claim 5, characterized in that, The water inlet solenoid valve is connected to the water inlet pipe, and the bottom of the furnace body is connected to the drain solenoid valve, which is connected to the external drain pipe. The furnace body is equipped with a water level probe.

8. The steam oven according to claim 5, characterized in that, The heating module includes heating elements located at the bottom of several furnace cavities. Each heating element is a multi-section bent heating tube and has a second electrical terminal located on the outside of the furnace body.

9. The steam oven according to claim 5, characterized in that, The body is provided with a first component mounting area located outside the airflow heating chamber and the cooking chamber. A connecting frame is provided on the outside of the steam generating module. The steam generating module is detachably mounted in the first component mounting area through the connecting frame. Several cooling fans are provided in the first component mounting area.

10. The steam oven according to claim 9, characterized in that, The cooking chamber is provided with a water collection port at the bottom. The body is also provided with a second component installation area located below the airflow heating chamber and the cooking chamber. The second component installation area is provided with a water receiving trough connected to the water collection port. The water receiving trough is equipped with a drain connector connected to an external drain pipe. The first component installation area is provided with an exhaust pipe connected to the water receiving trough. The exhaust pipe extends out of the top of the body.

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