Steam oven and self-cleaning method

Abstract

Provided in the present invention are a steam oven and a self-cleaning method. The steam oven comprises: a body; a steam generation assembly, arranged on the body and used for generating steam and a steam-water mixture; a water tank assembly, arranged on the body and connected to the steam generation assembly; an inner chamber heating module, arranged on the body and used for heating an inner chamber of the body and heating the steam and the steam-water mixture; a steam-water pipe assembly, connected to the steam generation assembly and the inner chamber; a circulating fan assembly, arranged on the body and used for providing driving force for the steam and the steam-water mixture that are delivered into the inner chamber, so that the circulating fan assembly jets the steam and the steam-water mixture to the surface of the inner chamber; an exhaust device, arranged on the body and used for discharging excess gas in the inner chamber; and a display control module, arranged on the body and connected to the water tank assembly, the steam generation assembly, the inner chamber heating module and the circulating fan assembly so as to control operation of same, thus completing cooking or self-cleaning. The steam oven provided by the present invention has a structure supporting self-cleaning.

Description

A steam oven and its self-cleaning method Technical Field

[0001] This invention relates to the field of smart home appliance technology, and in particular to a steam oven and a self-cleaning method. Background Technology

[0002] Currently available steam ovens always leave grease and food residue inside after each use. If not cleaned promptly, this residue accumulates and forms stubborn stains. These stains not only affect the oven's appearance but can also negatively impact the food's texture. Current technology only softens the stains with steam, requiring manual cleaning. Cleaning an oven is also quite tedious. The limited space inside an oven, along with many hard-to-reach corners and crevices, makes cleaning exceptionally difficult, significantly impacting the user experience and becoming a major industry challenge. Therefore, a new technology to solve the problem of cleaning the inside of ovens is urgently needed.

[0003] To address these issues, Chinese patent publication number CN106073464B discloses a steam oven and its self-cleaning method, comprising a cabinet, an inner liner assembly with a cooking chamber inside the cabinet, a steam generator connected to the cooking chamber, and a water tank connected to the steam generator. The key feature is that the water tank is connected to a vertically arranged rotating pipe via a pipe, one end of which passes through the inner liner assembly and extends into the cooking chamber, and the rotating pipe can rotate around its own vertical axis. However, this technology has certain structural drawbacks; it cannot generate high-temperature steam for cleaning, and it is not suitable for higher-temperature steam ovens, requiring a separate rotating pipe, which is difficult to implement, costly, and difficult to mass-produce. Therefore, the existing technology needs further improvement. Summary of the Invention

[0004] This invention provides a steam oven with a self-cleaning structure and a self-cleaning method for the steam oven.

[0005] To address the aforementioned technical problems, embodiments of the present invention provide a steam oven, comprising:

[0006] Organism;

[0007] A steam generating assembly, located on the machine body, is used to generate steam and steam-water.

[0008] A water tank assembly is mounted on the machine body and connected to the steam generating assembly, and is used at least to supply water to the steam generating assembly;

[0009] An internal heating module is installed on the machine body and is used to heat the internal cavity of the machine body and to heat the steam and steam water.

[0010] A water-steam pipeline assembly, connected to the steam generating assembly, is used to transport steam and steam-water into the inner cavity;

[0011] A circulating fan assembly, disposed on the body, is used to provide kinetic energy to the steam and steam-water conveyed to the inner cavity, so that the circulating fan assembly can spray the steam and steam-water onto the surface of the inner cavity.

[0012] An exhaust device, located on the machine body, is used to exhaust excess gas from the inner cavity;

[0013] The display control module is located on the body and is connected to the water tank assembly, steam generator assembly, internal heating module, and circulating fan assembly to control their operation and complete cooking or self-cleaning.

[0014] In some embodiments, the water vapor pipeline assembly includes at least one water vapor pipeline and a water vapor nozzle disposed on the water vapor pipeline. The spray direction of the water vapor nozzle has a target angle with the rotation direction of the circulating fan blades, so that the steam can be sprayed onto the surface of the inner cavity by the driving of the circulating fan blades.

[0015] In some embodiments, the nozzle area of ​​the water vapor nozzle is smaller than the cross-sectional area of ​​the water vapor pipeline, or the nozzle area of ​​the water vapor nozzle is half the cross-sectional area of ​​the water vapor pipeline.

[0016] In some embodiments, the system further includes a wastewater tank assembly disposed on the body and a drainage assembly connected to the wastewater tank assembly and the inner cavity. The display control module and the drainage assembly are used to control the operation of the drainage assembly to transport the wastewater in the inner cavity to the wastewater tank via the drainage assembly.

[0017] In some embodiments, the inner cavity is provided with a drain outlet, and the drainage assembly includes a filter drainage assembly disposed at the drain outlet and a drainage element connected to the filter drainage assembly. The drainage element discharges wastewater from the inner cavity based on the drainage siphon principle, while retaining steam in the inner cavity.

[0018] In some embodiments, the display control module controls the water tank assembly to supply water to the steam generator assembly so that the steam generator assembly generates steam. At the same time, it controls the operation of the circulating fan assembly to ensure that when the steam is transported from the water-steam pipeline assembly to the inner cavity, it can be sprayed onto the surface of the inner cavity by the circulating fan blades, thereby making the steam quickly and evenly distributed in the entire inner cavity.

[0019] In some embodiments, the display control module controls the inner cavity heating module, and the steam delivered to the inner cavity passes through the inner cavity heating module under the drive of the circulating fan blades to reheat the steam.

[0020] Another embodiment of the present invention also provides a self-cleaning method applied to a steam oven as described in any of the embodiments above, the method comprising:

[0021] In response to the cleaning command, the steam generator assembly and the circulating fan assembly are controlled to run continuously for a first period of time based on the first parameter group, so that the high-temperature steam continuously produced by the steam generator assembly is driven by the circulating fan blades and fills the inner cavity of the steam oven, thereby softening the surface stains.

[0022] The second parameter group controls the steam generator assembly and the circulating fan assembly to operate continuously for a second period, so that the steam generator assembly continuously produces high-temperature steam water. The high-temperature steam water is sprayed onto the surface of the inner cavity by the beating of the circulating fan blades, thereby washing away the softened stains.

[0023] The parameters in the first parameter group are used to enable the steam generator assembly to generate high-temperature steam, and the parameters in the second parameter group are used to enable the steam generator assembly to generate high-temperature steam water. The parameters regarding the amount of water injected into the steam generator assembly are different in the first parameter group and the second parameter group.

[0024] In some embodiments, the water tank assembly of the steam oven is used to hold water or cleaning fluid;

[0025] The method further includes:

[0026] In response to a deep cleaning command, after the surface stains have been softened, the cleaning fluid in the water tank assembly is controlled to be delivered to the steam generator assembly. Based on the third parameter set, the steam generator assembly and the circulating fan assembly are controlled to continuously operate for a third period of time, so that the steam generator assembly continuously produces high-temperature steam cleaning fluid. The high-temperature steam cleaning fluid is sprayed onto the surface of the inner cavity by the beating of the circulating fan blades, thereby rinsing the softened stains. The third parameter set is matched with the second parameter set.

[0027] In some embodiments, the method further includes:

[0028] Output a prompt message, which prompts the user to clean the water tank assembly and fill it with clean water;

[0029] The water tank assembly is controlled to supply clean water to the steam generator assembly, and the steam generator assembly and the circulating fan assembly are controlled to run continuously for a fourth period based on the fourth parameter group, so that the steam generator assembly continuously produces high-temperature steam water. The high-temperature steam water is sprayed onto the surface of the inner cavity by the beating of the circulating fan blades, thereby rinsing the inner cavity. The fourth parameter group is matched with the third parameter group.

[0030] Based on the disclosure of the above embodiments, it can be understood that the beneficial effects of the embodiments of the present invention include: by improving the structure of the steam oven and the control program, the steam oven can generate steam or steam water according to demand, and at the same time, the steam or steam water is driven to all parts of the inner cavity by the circulating fan assembly, realizing the flushing and washing of the inner cavity, with good cleaning effect, low cost, and convenient operation. It effectively achieves the effect of automatically softening and removing stains in the inner cavity, greatly simplifying the cleaning process, saving users' time and effort, and improving the user experience. Moreover, the structure of the steam oven of this application can also improve the uniformity of steam or steam water in the inner cavity, improve the actual cooking effect and self-cleaning effect. In addition, the inner cavity heating module can also reheat the steam to ensure that the temperature of the steam or steam water is constant. Attached Figure Description

[0031] Figure 1 is a schematic diagram of the structure of the steam oven in an embodiment of the present invention.

[0032] Figure 2 is another structural schematic diagram of the steam oven in an embodiment of the present invention.

[0033] Figure 3 is another structural schematic diagram of the steam oven in an embodiment of the present invention.

[0034] Figure 4 is a partial structural schematic diagram of the steam oven in an embodiment of the present invention.

[0035] Figure 5 is a partial structural schematic diagram of the steam oven in an embodiment of the present invention.

[0036] Figure 6 is a partial structural schematic diagram of the steam oven in an embodiment of the present invention.

[0037] Figure 7 is a schematic flowchart of the self-cleaning method in an embodiment of the present invention.

[0038] Figure 8 is a schematic diagram of the application process of the self-cleaning method in the embodiment of the present invention.

[0039] Reference numerals: 1-Main body; 2-Steam generating assembly; 3-Water tank assembly; 4-Inner cavity heating module; 5-Water and steam pipeline; 6-Water and steam nozzle assembly; 7-Circulating fan assembly; 8-Exhaust device; 9-Drainage assembly; 10-Inner cavity; 11-Display and control module; 12-Wastewater tank assembly. Detailed Implementation

[0040] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings, but these are not intended to limit the scope of the invention.

[0041] It should be understood that various modifications can be made to the embodiments disclosed herein. Therefore, the following description should not be considered as limiting, but merely as an example of embodiments. Other modifications within the scope and spirit of this disclosure will be apparent to those skilled in the art.

[0042] The accompanying drawings, which are included in and form part of this specification, illustrate embodiments of the present disclosure and, together with the general description of the disclosure given above and the detailed description of the embodiments given below, serve to explain the principles of the disclosure.

[0043] These and other features of the invention will become apparent from the following description of preferred forms of embodiments given as non-limiting examples, with reference to the accompanying drawings.

[0044] It should also be understood that although the invention has been described with reference to some specific examples, those skilled in the art can certainly implement many other equivalent forms of the invention, which have the features described in the claims and are therefore all within the scope of protection defined herein.

[0045] The above and other aspects, features and advantages of this disclosure will become more apparent when taken in conjunction with the accompanying drawings and in view of the following detailed description.

[0046] Specific embodiments of the present disclosure are described thereafter with reference to the accompanying drawings; however, it should be understood that the disclosed embodiments are merely examples of the present disclosure and can be implemented in various ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that could obscure the present disclosure. Therefore, the specific structural and functional details disclosed herein are not intended to be limiting, but merely to serve as the basis and representative basis for the claims to teach those skilled in the art to use the present disclosure in a variety of substantially any suitable detailed structures.

[0047] This specification may use the phrases “in one embodiment,” “in another embodiment,” “in yet another embodiment,” or “in still another embodiment,” all of which may refer to one or more of the same or different embodiments according to this disclosure.

[0048] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0049] As shown in Figures 1 and 2, an embodiment of the present invention provides a steam oven, comprising:

[0050] Body 1;

[0051] Steam generating assembly 2, located on the body 1, is used to generate steam and steam water;

[0052] Water tank assembly 3 is disposed on the body 1 and connected to the steam generating assembly 2, and is used at least to supply water to the steam generating assembly 2;

[0053] The inner cavity heating module 4 is disposed on the body 1 and is used to heat the inner cavity 10 of the body 1, as well as to heat the steam and steam water;

[0054] The water-steam pipeline 5 is connected to the steam generating assembly 2 and is used to transport steam and steam-water to the inner cavity 10.

[0055] A circulating fan assembly 7 is disposed on the body 1 and is used to provide kinetic energy for the steam and steam water conveyed to the inner cavity 10, so that the circulating fan assembly 7 can spray the steam and steam water onto the surface of the inner cavity 10.

[0056] An exhaust device 8 is provided on the body 1 and is used to exhaust excess gas in the inner cavity 10.

[0057] The display control module 11 is located on the body 1 and is connected to the water tank assembly 3, the steam generating assembly 2, the internal heating module 4, and the circulating fan assembly 7 to control their operation and complete cooking or self-cleaning.

[0058] In this embodiment, the steam generator can selectively provide steam or steam-water mixture (a mixture of steam and water) to the inner cavity 10 of the machine body 1; the inner cavity heating module 4 can heat the inner cavity 10 and can reheat the steam or steam-water mixture; the water-steam pipeline 5 assembly is used to transport steam or steam-water mixture; the circulating fan assembly 7 further provides kinetic energy to the steam-water mixture, so that the steam or steam-water mixture can be sprayed onto various surfaces of the inner cavity 10 by the beating of the circulating fan blades, thereby enabling the steam to quickly and evenly diffuse throughout the entire inner cavity 10 and enabling the steam-water mixture to spray and brush various surfaces of the inner cavity 10; the exhaust device 8 is connected to the inner cavity 10 and is used to exhaust excess gas to prevent the pressure inside the inner cavity 10 from exceeding the standard; the water tank assembly 3 provides water to the steam generator and can also provide other liquids, such as cleaning fluid. The display control module 11 is used to run the preset machine program to control the above-mentioned modules, components and devices, so that they can work together to cook the food placed in the inner cavity 10, such as steaming or steam-baking, and can also be used to achieve self-cleaning of the inner cavity 10.

[0059] Optionally, the steam oven in this embodiment may also be equipped with a door assembly, which may be electric or mechanical, depending on the specific type. A water pump assembly is provided inside the water tank assembly 3, which is used to draw water from the water tank assembly 3 and inject it into the steam generating assembly 2. The display control module 11 controls the water pump assembly to regulate the amount of water injected into the steam generating assembly 2.

[0060] Based on the above, this embodiment improves the structure and control program of the steam oven, enabling it to generate steam or steam-water as needed. Simultaneously, the circulating fan assembly 7 distributes the steam or steam-water to all parts of the inner cavity 10, achieving thorough cleaning and rinsing. This results in excellent cleaning performance, low cost, and convenient operation, effectively softening and removing stains from the inner cavity 10, greatly simplifying the cleaning process, saving users time and effort, and improving user experience. Furthermore, the structure of this steam oven improves the uniformity of steam or steam-water within the inner cavity 10, enhancing cooking results and self-cleaning capabilities. Additionally, the inner cavity heating module 4 can reheat the steam, ensuring a constant temperature for the steam or steam-water.

[0061] Specifically, the shape and location of the steam generator assembly are not fixed; it can be on the side wall of the machine body 1 or at the bottom of the machine body 1, as shown in Figures 1 and 2. The steam valve generator assembly used is generally a flow channel type steam generator (i.e., a thermal steam generator), which can quickly evaporate water and generate a certain pressure in the flow channel, thereby forming high-temperature steam or steam-water after being ejected.

[0062] As shown in Figures 3, 4, and 5, the steam-water pipeline 5 assembly in this embodiment includes at least one steam-water pipeline 5 and steam-water nozzles disposed on the steam-water pipeline 5. Preferably, there can be multiple steam-water pipelines 5, such as four, and each steam-water pipeline 5 is provided with a steam-water nozzle. The steam-water pipelines 5 and their steam-water nozzles are distributed around the inner cavity 10 in various directions to spray steam or steam-water in each direction. The spray direction of the steam-water nozzle has a target angle with the rotation direction of the circulating fan blades. This angle is variable and can be determined comprehensively according to the actual situation. By setting this angle, the steam sprayed from the steam-water nozzles can be sprayed onto the surface of the inner cavity 10 by the driving force of the circulating fan blades.

[0063] Specifically, in this embodiment, the nozzle area of ​​the steam nozzle is smaller than the cross-sectional area of ​​the steam pipe 5, or the nozzle area of ​​the steam nozzle is half the cross-sectional area of ​​the steam pipe 5. This ensures that the steam nozzle assembly 6 maintains a certain pressure to spray steam and steam-water, thereby ensuring that the steam and steam-water can be sprayed onto the circulating fan blades and directed towards the surfaces of the inner cavity 10 in various directions based on the circulating fan blades.

[0064] As shown in Figures 5 and 6, the steam oven in this embodiment also includes a wastewater tank assembly 12 disposed on the body 1 and a drainage assembly 9 connected to the wastewater tank assembly 12 and the inner cavity 10. The display control module 11 and the drainage assembly 9 are used to control the operation of the drainage assembly 9 so as to transport the wastewater in the inner cavity 10 to the wastewater tank assembly 12 through the drainage assembly 9.

[0065] Specifically, the inner cavity 10 is provided with a drain outlet, and the drainage assembly 9 includes a filter drainage assembly 9 disposed at the drain outlet and a drainage element connected to the filter drainage assembly 9. The drainage element discharges wastewater from the inner cavity 10 based on the drainage siphon principle, while retaining steam in the inner cavity 10. In this embodiment, the filter drainage assembly 9 is configured as a basket-shaped filter screen type, used to filter the passing wastewater, and is easy for the user to remove and clean.

[0066] In practical applications, the display control module 11 controls the water tank assembly 3 to supply water to the steam generator assembly, so that the steam generator assembly 2 generates steam. At the same time, it controls the operation of the circulating fan assembly 7 to ensure that when the steam is transported from the water-steam pipeline 5 assembly to the inner cavity 10, it can be sprayed onto the surface of the inner cavity 10 through the circulating fan blades, thereby making the steam quickly and evenly distributed in the entire inner cavity 10.

[0067] Furthermore, the display control module 11 controls the inner cavity heating module 4. The steam delivered to the inner cavity 10 passes through the inner cavity heating module 4 under the drive of the circulating fan blades to reheat the steam. For example, the steam is controlled to be sprayed onto the circulating fan blades, and the circulating fan blades drive the steam to be evenly distributed throughout the entire inner cavity 10, so as to achieve rapid and uniform distribution of steam in the inner cavity 10. At the same time, the display control module 11 can control the operation of the inner cavity heating module 4. At this time, the circulating fan blades can drive the steam through the inner cavity heating module 4, so that the operation of the heating module can not only heat the inner cavity 10, but also simultaneously achieve the reheating of the steam.

[0068] The above control method not only supports the rapid distribution of steam and steam baking of food inside the inner cavity 10, but also enables the softening and rinsing of stains on the surface of the inner cavity 10.

[0069] As shown in Figure 7, another embodiment of the present invention also provides a self-cleaning method, applied to a steam oven as described in any of the embodiments above, the method comprising:

[0070] S1: In response to the cleaning command, the steam generator assembly and the circulating fan assembly are controlled to run continuously for a first period of time based on the first parameter group, so that the high-temperature steam continuously produced by the steam generator assembly is driven by the circulating fan blades and fills the inner cavity of the steam oven, thereby softening the surface stains.

[0071] S2: Based on the second parameter group, the steam generator assembly and the circulating fan assembly are controlled to run continuously for the second period, so that the steam generator assembly continuously produces high-temperature steam water. The high-temperature steam water is sprayed onto the surface of the inner cavity by the beating of the circulating fan blades, thereby washing away the softened stains.

[0072] The parameters in the first parameter group are used to enable the steam generator assembly to generate high-temperature steam, and the parameters in the second parameter group are used to enable the steam generator assembly to generate high-temperature steam water. The parameters regarding the amount of water injected into the steam generator assembly are different in the first parameter group and the second parameter group.

[0073] Specifically, as shown in Figure 8, the water tank assembly of the steam oven is used to hold water or cleaning solution;

[0074] The method further includes:

[0075] S3: In response to the deep cleaning command, after the surface stains have been softened, the cleaning fluid in the water tank assembly is controlled to be delivered to the steam generator assembly, and the steam generator assembly and the circulating fan assembly are controlled to continuously operate for a third period based on the third parameter group, so that the steam generator assembly continuously produces high-temperature steam cleaning fluid. The high-temperature steam cleaning fluid is sprayed onto the surface of the inner cavity by the beating of the circulating fan blades, thereby rinsing the softened stains. The third parameter group is matched with the second parameter group.

[0076] Furthermore, the method also includes:

[0077] S4: Output a prompt message, which prompts the user to clean the water tank assembly and fill it with clean water;

[0078] S5: Control the water tank assembly to supply clean water to the steam generator assembly, and control the steam generator assembly and the circulating fan assembly to continuously operate for a fourth period based on the fourth parameter group, so that the steam generator assembly continuously produces high-temperature steam water. The high-temperature steam water is sprayed onto the surface of the inner cavity by the beating of the circulating fan blades, thereby rinsing the inner cavity. The fourth parameter group is matched with the third parameter group.

[0079] For example, when controlling the execution of the internal cavity self-cleaning function, in response to the user selecting the self-cleaning function on the display control module:

[0080] a. The first step of the program is to soften the stains with high-temperature steam.

[0081] The water pump assembly is controlled to operate at a specified pumping volume, frequency, and time according to the set requirements, so that the steam generator can completely evaporate the water, causing the water to rapidly vaporize and expand to generate the required pressure, thereby producing high-temperature steam. The steam is sprayed onto the low-speed rotating circulating fan blades through the water-steam pipeline and water-steam nozzle assembly. The circulating fan blades drive the steam to rapidly fill the entire inner cavity. The above operation lasts for 5-15 minutes (the exact time is uncertain) to fully soften the dirt on the surface of the inner cavity.

[0082] After completing the first step of softening the stains, the second step of rinsing the inner cavity with high-temperature steam water continues. According to the set requirements, the water pump assembly is controlled to increase the pumping volume, frequency, and time, so that the steam generator cannot completely evaporate the water supplied by the water pump assembly, thereby generating high-temperature steam water (a mixture of steam and water). At the same time, the water vaporizes and expands to generate a certain pressure, so that the high-temperature steam water (a mixture of steam and water) is sprayed through the water vapor pipeline and water vapor nozzle assembly onto the high-speed rotating circulating fan blades. The circulating fan blades beat the high-temperature steam water and spray it onto the surface of the inner cavity. The above process lasts for 5-15 minutes (the exact time is uncertain) to rinse the surface of the inner cavity.

[0083] b. Deep self-cleaning function of cleaning fluid: Responds to the deep cleaning function selected by the user on the display and control module:

[0084] The first step of the program is to soften the stains with high-temperature steam;

[0085] Controlling the water pump assembly's pumping volume, frequency, and time according to the set requirements allows the steam generator to completely evaporate the water. Simultaneously, the water's rapid vaporization and expansion generate pressure, producing high-temperature steam which is ejected through the water-steam pipeline and water-steam nozzle assembly. The high-temperature steam is sprayed onto the low-speed rotating circulating fan blades, which in turn cause the steam to rapidly spread across the entire inner cavity surface for 5-10 minutes (the exact duration varies), softening the stains in the inner cavity.

[0086] After completing the first step of softening the stains, a prompt is displayed, instructing the user to add cleaning agent to the water tank assembly;

[0087] The water pump assembly is controlled according to the set requirements to operate based on the specified pumping volume, frequency, and time, so that the steam generator cannot completely evaporate the water supplied by the water pump assembly, thereby generating high-temperature steam cleaning liquid. At the same time, the cleaning liquid vaporizes and expands to generate a certain pressure. The high-temperature steam cleaning liquid will be sprayed through the water and steam pipeline and water and steam nozzle assembly onto the high-speed rotating circulating fan blades. The circulating fan blades beat the high-temperature steam cleaning liquid and spray it onto the surface of the inner cavity. The above process lasts for 5-15 minutes (the exact time is uncertain) to flush the surface of the inner cavity.

[0088] After completing the second step of rinsing the inner cavity with cleaning fluid, a prompt message is output, reminding the user to clean the water tank and replace the cleaning fluid in the water tank assembly with clean water. Then, the water pump assembly is controlled according to the set requirements to operate based on the specified pumping volume, frequency, and time, so that the steam generator cannot completely evaporate the water supplied by the water pump assembly, thereby generating high-temperature steam water. At the same time, the water vaporizes and expands to generate a certain pressure. The high-temperature steam water is sprayed out through the water steam pipe and water steam nozzle assembly, and sprayed onto the high-speed rotating circulating fan blades. The circulating fan blades beat the high-temperature steam water and spray it onto the surface of the inner cavity. The above process lasts for 5-15 minutes (the exact time is uncertain) to fully rinse the cleaning fluid on the surface of the inner cavity.

[0089] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its spirit and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. A steam oven, characterized in that, include: Organism; A steam generating assembly, located on the machine body, is used to generate steam and steam-water. A water tank assembly is mounted on the machine body and connected to the steam generating assembly, and is used at least to supply water to the steam generating assembly; An internal heating module is installed on the machine body and is used to heat the internal cavity of the machine body and to heat the steam and steam water. A water-steam pipeline assembly, connected to the steam generating assembly, is used to transport steam and steam-water into the inner cavity; A circulating fan assembly, disposed on the body, is used to provide kinetic energy to the steam and steam-water conveyed to the inner cavity, so that the circulating fan assembly can spray the steam and steam-water onto the surface of the inner cavity. An exhaust device, located on the machine body, is used to exhaust excess gas from the inner cavity; The display control module is located on the body and is connected to the water tank assembly, steam generator assembly, internal heating module, and circulating fan assembly to control their operation and complete cooking or self-cleaning.

2. The steam oven according to claim 1, characterized in that, The steam pipeline assembly includes at least one steam pipeline and a steam nozzle disposed on the steam pipeline. The spray direction of the steam nozzle has a target angle with the rotation direction of the circulating fan blades, so that the steam can be sprayed onto the surface of the inner cavity by the driving of the circulating fan blades.

3. The steam oven according to claim 2, characterized in that, The nozzle area of ​​the water vapor nozzle is smaller than the cross-sectional area of ​​the water vapor pipeline, or the nozzle area of ​​the water vapor nozzle is half the cross-sectional area of ​​the water vapor pipeline.

4. The steam oven according to claim 1, characterized in that, It also includes a wastewater tank assembly mounted on the machine body and a drainage assembly connected to the wastewater tank assembly and the inner cavity. The display control module and the drainage assembly are used to control the operation of the drainage assembly so as to transport the wastewater in the inner cavity to the wastewater tank through the drainage assembly.

5. The steam oven according to claim 4, characterized in that, The inner cavity is provided with a drain outlet. The drainage assembly includes a filter drainage assembly disposed at the drain outlet and a drainage component connected to the filter drainage assembly. The drainage component discharges wastewater from the inner cavity based on the drainage siphon principle, while retaining steam in the inner cavity.

6. The steam oven according to claim 1, characterized in that, The display control module controls the water tank assembly to supply water to the steam generator assembly so that the steam generator assembly generates steam. At the same time, it controls the operation of the circulating fan assembly to ensure that when the steam is transported from the water-steam pipeline assembly to the inner cavity, it can be sprayed onto the surface of the inner cavity through the circulating fan blades, thereby making the steam quickly and evenly distributed in the entire inner cavity.

7. The steam oven according to claim 6, characterized in that, The display control module controls the inner cavity heating module, and the steam delivered to the inner cavity passes through the inner cavity heating module under the drive of the circulating fan blades to reheat the steam.

8. A self-cleaning method applied to a steam oven as described in any one of claims 1-7, the method comprising: In response to the cleaning command, the steam generator assembly and the circulating fan assembly are controlled to run continuously for a first period of time based on the first parameter group, so that the high-temperature steam continuously produced by the steam generator assembly is driven by the circulating fan blades and fills the inner cavity of the steam oven, thereby softening the surface stains. The second parameter group controls the steam generator assembly and the circulating fan assembly to operate continuously for a second period, so that the steam generator assembly continuously produces high-temperature steam water. The high-temperature steam water is sprayed onto the surface of the inner cavity by the beating of the circulating fan blades, thereby washing away the softened stains. The parameters in the first parameter group are used to enable the steam generator assembly to generate high-temperature steam, and the parameters in the second parameter group are used to enable the steam generator assembly to generate high-temperature steam water. The parameters regarding the amount of water injected into the steam generator assembly are different in the first parameter group and the second parameter group.

9. The self-cleaning method according to claim 8, characterized in that, The water tank assembly of the steam oven is used to hold water or cleaning solution; The method further includes: In response to a deep cleaning command, after the surface stains have been softened, the cleaning fluid in the water tank assembly is controlled to be delivered to the steam generator assembly. Based on the third parameter set, the steam generator assembly and the circulating fan assembly are controlled to continuously operate for a third period of time, so that the steam generator assembly continuously produces high-temperature steam cleaning fluid. The high-temperature steam cleaning fluid is sprayed onto the surface of the inner cavity by the beating of the circulating fan blades, thereby rinsing the softened stains. The third parameter set is matched with the second parameter set.

10. The self-cleaning method according to claim 9, characterized in that, The method further includes: Output a prompt message, which prompts the user to clean the water tank assembly and fill it with clean water; The water tank assembly is controlled to supply clean water to the steam generator assembly, and the steam generator assembly and the circulating fan assembly are controlled to run continuously for a fourth period based on the fourth parameter group, so that the steam generator assembly continuously produces high-temperature steam water. The high-temperature steam water is sprayed onto the surface of the inner cavity by the beating of the circulating fan blades, thereby rinsing the inner cavity. The fourth parameter group is matched with the third parameter group.

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