Steaming oven
By introducing a steam injection structure and a steam circulation system into the steam oven, the problems of low cleaning efficiency and low steam utilization rate of existing steam ovens have been solved, achieving efficient cleaning and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO FOTILE KITCHEN WARE CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-17
AI Technical Summary
Existing cleaning methods for steam ovens are inefficient and have low steam utilization rates. Spray systems are costly, and manual cleaning is not suitable for home use.
Design a steam oven that includes an inner liner, a steam generator, a liquid supply component, and a steam injection structure. The steam injection structure sprays high-temperature steam to soften dirt and promote its removal. The steam is reused by circulating condensate water, thereby improving steam utilization.
It improves the efficiency of dirt removal and steam utilization, reduces cleaning costs, and is suitable for home use.
Smart Images
Figure CN224125768U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of kitchen appliance technology, and in particular to a steam oven. Background Technology
[0002] Currently, in the steam oven industry, cleaning steam ovens is typically achieved through spraying or manual water spraying. However, spraying requires a complete spraying system and wastewater recycling, which is costly. Manual water spraying requires a large external spraying system, suitable for commercial use but not for home use.
[0003] Therefore, in related technologies, steam ovens are equipped with a steam cleaning auxiliary function, which uses high-temperature steam to soften the dirt on the inner wall of the oven, allowing the dirt to fall off on its own. However, this setting has low cleaning efficiency and low steam utilization. Utility Model Content
[0004] Therefore, it is necessary to provide a steam oven to improve the efficiency of dirt removal and steam utilization.
[0005] A steam oven includes an inner cavity, a steam generator, a liquid supply assembly, a steam outlet pipe, and a steam injection structure. The inner cavity has a cooking cavity, a steam outlet, and a steam injection mounting hole. The steam outlet and the steam injection mounting hole are spaced apart and respectively connected to the cooking cavity. The steam generator includes a steam generating plate installed at the bottom of the cooking cavity. The liquid supply assembly includes a liquid inlet pipe connected to the steam generating plate. One end of the steam outlet pipe is connected to the steam outlet, and the other end has a steam output section. The steam output section passes through the steam injection mounting hole and extends into the cooking cavity, forming the outlet of the steam outlet pipe. The steam injection structure is installed at the outlet of the steam outlet pipe. The steam injection structure includes a rotatable nozzle with a spray port connected to the steam outlet pipe.
[0006] Understandably, the liquid supply assembly provides liquid to the steam generator inside the cooking cavity via the inlet pipe. The steam generator, with its steam generating plate, facilitates the rapid diffusion of the generated steam into the cooking cavity. Steam enters the steam outlet pipe through the steam outlet and is ejected outwards through the steam spray structure at the steam output section of the outlet pipe. The steam softens dirt on the inner wall of the inner pot, and the rotation of the nozzles sprays steam to various locations within the inner pot, exerting a pressure effect on the dirt to promote its removal and improve cleaning efficiency. Excess steam gradually cools, forming condensate that collects on the steam generating plate for reuse, further enhancing steam utilization.
[0007] In one embodiment, the number of spray nozzles is multiple; at least one of the spray nozzles is located at the head of the nozzle; and / or, at least two of the spray nozzles are spaced apart circumferentially along the nozzle.
[0008] In one embodiment, the extension direction of the injection port is inclined relative to the axial direction of the steam injection structure.
[0009] In one embodiment, the steam oven includes a heating element located within the cooking cavity and mounted on the steam output section.
[0010] In one embodiment, the heating element is configured as an electromagnetic heating coil, which is sleeved on the steam output section and spirally wound along the axial direction of the steam output section.
[0011] In one embodiment, the liquid supply assembly includes a liquid storage tank and a liquid supply power source connected between the liquid storage tank and the liquid inlet pipe; the steam oven further includes a steam power source installed in the steam outlet pipe; the heating element is configured to heat the steam output section in response to the operation of the steam power source.
[0012] In one embodiment, the liquid inlet pipeline includes a first liquid inlet pipe and a second liquid inlet pipe; the first liquid inlet pipe is connected between the liquid supply power source and the inlet of the electromagnetic heating coil, one end of the second liquid inlet pipe is connected to the outlet of the electromagnetic heating coil, and the other end is connected to the steam outlet pipeline, with the other end located between the steam power source and the steam outlet; the steam oven has a steam mode and a cleaning mode; in the steam mode, the liquid supply power source and the steam power source operate alternately; in the cleaning mode, the steam power source operates continuously, and the liquid supply power source operates intermittently.
[0013] In one embodiment, the inner liner is further provided with a liquid inlet communicating with the cooking cavity, and the liquid inlet, the steam outlet and the steam injection assembly hole are spaced apart; the liquid inlet pipeline includes a first liquid inlet pipe and a second liquid inlet pipe; the first liquid inlet pipe is connected between the liquid supply power source and the inlet of the electromagnetic heating coil, and the second liquid inlet pipe is connected between the outlet of the electromagnetic heating coil and the liquid inlet.
[0014] In one embodiment, the steam injection structure includes a base connected to the steam output section, the nozzle is sleeved on the base, and a rolling element is provided between the nozzle and the base along the radial direction of the steam injection structure.
[0015] In one embodiment, the nozzle includes a first limiting portion protruding inward along its own radial direction, and the base protruding outward along the radial direction of the nozzle to form a second limiting portion. The first limiting portion is disposed between the steam output section and the second limiting portion. Along the axial direction of the steam injection structure, the rolling element is sandwiched between the first limiting portion and the second limiting portion. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 A schematic diagram of the orientation of the steam oven provided in this application;
[0018] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;
[0019] Figure 3 A schematic diagram of the steam oven provided in this application from another orientation;
[0020] Figure 4 A schematic diagram of the heating element and steam injection structure provided in this application;
[0021] Figure 5 A cross-sectional view of the steam injection structure provided in this application;
[0022] Figure 6 This is a diagram showing the arrangement of the liquid inlet pipe in one embodiment of the steam oven provided in this application.
[0023] Figure 7 This is a partial enlarged view of the liquid inlet pipe and steam outlet pipe in the steam oven provided in this application at the steam injection assembly hole;
[0024] Figure 8 This is a diagram showing the arrangement of the liquid inlet pipe in another embodiment of the steam oven provided in this application.
[0025] Reference numerals: 100, Steam oven; 10, Inner cavity; 101, Cooking cavity; 102, Liquid inlet; 103, Steam outlet; 104, Steam injection assembly hole; 20, Steam generator; 21, Steam generating plate; 30, Liquid inlet pipe; 31, First liquid inlet pipe; 32, Second liquid inlet pipe; 40, Steam outlet pipe; 401, Steam output section; 41, Main steam outlet path; 42, Branch steam outlet path; 50, Heating element; 60, Steam injection structure; 61, Base; 611, Second limiting part; 62, Nozzle; 621, Support base; 6211, First limiting part; 622, Steam injection body; 6221, Injection port; 63, Rolling element; 70, Temperature probe; 80, Steam power source; 90, Shell. Detailed Implementation
[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0027] It should be noted that when a component is referred to as being "fixed to," "set on," or "properly placed on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.
[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0029] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0030] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.
[0031] Please see Figures 1 to 8 This application provides a steam oven 100, which includes an inner cavity 10 and a cooking cavity 101 for heating and cooking food to achieve the functions of steaming or baking.
[0032] The steam oven 100 also includes a steam generator 20, a liquid supply assembly, and a steam outlet pipe 40. The inner liner 10 is also provided with a steam outlet 103 and a steam injection assembly hole 104, which are spaced apart and connected to the cooking cavity 101 respectively.
[0033] like Figure 3 As shown, the steam generator 20 includes a steam generating plate 21, which is mounted at the bottom of the cooking cavity 101. The liquid supply assembly includes a liquid inlet pipe 30 connected to the steam generating plate 21, which supplies liquid, such as water, to the steam generating plate 21. The steam generator 20 converts the liquid into saturated steam. The steam generating plate 21 has a large opening, which facilitates the rapid diffusion of the saturated steam within the cooking cavity 101 after its formation.
[0034] like Figures 6 to 8 As shown, one end of the steam outlet pipe 40 is connected to the steam outlet 103, and the other end is provided with a steam output section 401, which forms the outlet of the steam outlet pipe 40. With this configuration, saturated steam in the cooking chamber 101 can enter the steam outlet pipe 40 from the steam outlet 103 and be output from the steam output section 401.
[0035] like Figure 1 and Figure 2As shown, the steam output section 401 further passes through the steam injection mounting hole 104 and extends into the cooking cavity 101 from the steam injection mounting hole 104. The steam oven 100 also includes a steam injection structure 60, which is installed at the outlet of the steam outlet pipe 40. The steam injection structure 60 includes a rotatable nozzle 62, which has a spray port 6221 connected to the steam outlet pipe 40. Thus, a large amount of saturated steam can be ejected from the nozzle 62 of the steam injection structure 60 into the cooking cavity 101. Because the saturated steam is in a high-temperature expansion state, the force generated when it is rapidly ejected from the spray port 6221 can drive the nozzle 62 to rotate, so that the saturated steam is sprayed to all corners of the inner liner 10 to soften the dirt on the inner wall of the inner liner 10. Furthermore, the force of the saturated steam when it is ejected has an impact pressure effect on the dirt, which helps to promote the removal of dirt and improve cleaning efficiency. Meanwhile, the condensate formed by the large amount of saturated steam after cooling can gradually accumulate on the steam generating plate 21 located at the bottom of the cooking cavity 101. The steam generating plate 21 can recycle the condensate to form saturated steam, which helps to improve the utilization rate of steam.
[0036] In summary, by setting up the steam injection structure 60 to spray steam to all corners of the inner liner 10, the dirt is softened, and the force generated by the steam injection structure 60 can promote the removal of dirt, improving cleaning efficiency. At the same time, the condensate formed after the steam condenses can be collected on the steam generating plate 21 at the bottom of the cooking cavity 101, which is conducive to recycling and reuse, improving the utilization rate of steam.
[0037] In a specific embodiment, the steam oven 100 is also equipped with a steam exhaust pipe connected to the inner liner 10. After cleaning, the steam generator 20 continues to run for a period of time to continue generating steam. At this time, the steam exhaust pipe is opened to discharge the steam. Of course, the steam exhaust pipe is closed during the cleaning process. Specifically, the opening and closing of the steam exhaust pipe can be achieved through an on / off valve.
[0038] like Figure 4 and Figure 5 As shown, in a specific embodiment, the number of spray nozzles 6221 is multiple to improve the efficiency of spraying steam into the cooking cavity 101, thereby improving cleaning efficiency.
[0039] like Figure 4 and Figure 5 As shown, in a specific embodiment, at least one of the multiple injection ports 6221 is located at the head of the nozzle 62, that is, along the axial direction of the steam injection structure 60, the nozzle 62 has at least one injection port 6221 on the surface away from the steam output section 401, so that steam can be directly ejected along the axial direction of the steam injection structure 60, thereby increasing the speed of steam injection to the outside.
[0040] like Figure 4 and Figure 5 As shown, in a specific embodiment, at least two injection ports 6221 are arranged at intervals along the circumference of the nozzle 62, which facilitates the nozzle 62 to uniformly inject steam outward along its own circumference.
[0041] like Figure 4 and Figure 5 As shown, in a specific embodiment, the extension direction of the injection port 6221 is inclined relative to the axial direction of the steam injection structure 60, so that the steam is ejected outward at an angle relative to the steam injection structure 60, thereby generating a force on the nozzle 62 along the circumference of the nozzle 62, which helps to promote the continuous rotation of the nozzle 62 and improve the uniformity of the injection.
[0042] like Figure 4 As shown, in a specific embodiment, the angle between the extending direction of the injection port 6221 and the axial direction of the steam injection structure 60 is α, where 15°≤α≤75°. This ensures that the steam exerts a large circumferential force on the nozzle 62, promoting the rotation of the nozzle 62, while avoiding an excessively large angle that would cause the forces generated at each injection port 6221 to counterbalance each other along the radial direction of the steam injection structure 60, making it difficult to rotate the nozzle 62. For example, α = 15°, 45°, or 75°.
[0043] like Figure 5 As shown, in a specific embodiment, the steam injection structure 60 includes a base 61 connected to the steam output section 401, a nozzle 62 sleeved on the base 61, and a rolling element 63 sandwiched between the nozzle 62 and the base 61 along the radial direction of the steam injection structure 60. Thus, the base 61 facilitates the connection and fixation of the entire steam injection structure 60 to the steam output section 401. The rolling element 63 reduces friction between the nozzle 62 and the base 61, facilitating the rotation of the nozzle 62 relative to the base 61.
[0044] like Figure 5 As shown, in a specific embodiment, the nozzle 62 includes a first limiting portion 6211 protruding inward along its own radial direction, and a second limiting portion 611 protruding outward along the radial direction of the nozzle 62. The first limiting portion 6211 is disposed between the steam output section 401 and the second limiting portion 611. Along the axial direction of the steam injection structure 60, a rolling element 63 is sandwiched between the first limiting portion 6211 and the second limiting portion 611. The provision of the first limiting portion 6211 and the second limiting portion 611 facilitates the limiting of the rolling element 63, promoting the limiting assembly of the rolling element 63. For example, the rolling element 63 can be a ball bearing.
[0045] like Figure 5As shown, in a specific embodiment, the nozzle 62 includes a support body 621 and a steam injection body 622 connected to the support body 621. The steam injection body 622 is provided with the aforementioned injection port 6221. The support body 621 forms a first limiting part 6211 and is sleeved on the base 61. With this configuration, during assembly, the rolling element 63 and the support body 621 can be assembled first, and then the support body 621 can be connected to the steam injection body 622.
[0046] In a specific embodiment, the base 61 is threadedly connected to the steam output section 401, which is easy to disassemble at any time to adapt to the steam output requirements of different modes.
[0047] In a specific embodiment, the support base 621 and the steam injection body 622 are threaded together, which facilitates disassembly and assembly and improves assembly efficiency.
[0048] The steam oven 100 has a steam mode and a cleaning mode. In the steam mode, steam is used to cook the food, and in the cleaning mode, steam is used to clean the inner cavity 10.
[0049] like Figure 2 and Figure 4 As shown, in an optional embodiment, the steam oven 100 includes a heating element 50 located within the cooking cavity 101 and installed in the steam output section 401. The heating element 50 directly heats the saturated steam within the steam output section 401 to form superheated steam. This superheated steam can directly enter the inner cavity 10 from the steam output section 401, reducing heat loss. Thus, in steam mode, the generated superheated steam accelerates the cooking process of food. In cleaning mode, the generated superheated steam accelerates the softening rate of dirt on the walls of the inner cavity 10.
[0050] In a specific embodiment, the heating element 50 is configured as an electromagnetic heating coil, which is sleeved on the steam output section 401 and spirally wound along the axial direction of the steam output section 401. This configuration allows the electromagnetic heating coil to generate an alternating magnetic field around itself when energized. This alternating magnetic field induces eddy currents in the steam output section 401, thereby generating heat to heat the saturated steam in the steam output section 401. Simultaneously, the heat generated by the electromagnetic heating coil and the steam output section 401 can radiate into the cooking cavity 101, continuously heating the steam near the electromagnetic heating coil, extending the steam overheating time, fully utilizing the heat, and reducing thermal efficiency loss.
[0051] In a specific embodiment, the steam output section 401 is made of metal.
[0052] In a specific embodiment, the electromagnetic heating coil passes through the inner liner 10 and extends outward from the cooking cavity 101 to connect with an external circuit. The steam oven 100 also includes a frequency conversion connector, which is installed on the electromagnetic heating coil and is used to adjust the frequency of the current output to the electromagnetic heating coil.
[0053] In a specific embodiment, the liquid supply assembly includes a liquid storage tank and a liquid supply power source. The liquid supply power source is connected between the liquid storage tank and the liquid inlet pipe 30 to provide power for the liquid delivery. For example, the liquid supply power source can be a water pump, etc.
[0054] like Figure 6 and Figure 8 As shown, in a specific embodiment, the steam oven 100 also includes a steam power source 80, which is installed in the steam outlet pipe 40. Thus, the steam power source 80 can draw steam from the cooking cavity 101, facilitating the rapid extraction of steam into the steam outlet pipe 40. The heating element 50 is configured to heat the steam output section 401 in response to the operation of the steam power source 80. After the steam power source 80 draws in saturated steam, the heating element 50 can subsequently heat the saturated steam to form superheated steam that is output into the cooking cavity 101. In steaming mode, this facilitates rapid cooking of food; in cleaning mode, it helps to accelerate the softening of dirt. For example, the steam power source 80 can be a steam pump or the like.
[0055] like Figure 8 As shown, in an optional embodiment, the liquid inlet pipe 30 includes a first liquid inlet pipe 31 and a second liquid inlet pipe 32. The first liquid inlet pipe 31 is connected between the liquid supply power source and the inlet of the electromagnetic heating coil. One end of the second liquid inlet pipe 32 is connected to the outlet of the electromagnetic heating coil, and the other end is connected to the steam outlet pipe 40, with the other end located between the steam power source 80 and the steam outlet 103. Thus, the liquid output from the liquid supply power source enters the first liquid inlet pipe 31 and is transported to the electromagnetic heating coil, absorbing heat from the coil and cooling it down. This prevents the electromagnetic heating coil from remaining overheated for extended periods, thus extending its service life. Simultaneously, after absorbing heat, the liquid is output through the second liquid inlet pipe 32 to the steam outlet pipe 40, and then from the steam outlet pipe 40 to the steam generator 20, shortening the time for the liquid to evaporate into saturated steam and improving energy efficiency.
[0056] In steam mode, the liquid supply power source and steam power source 80 operate alternately to avoid interference between liquid and steam delivery. In cleaning mode, the steam power source 80 operates continuously to continuously draw in steam, while the liquid supply power source operates intermittently to intermittently supply liquid to the steam generator 20. Thus, the intermittent operation of the liquid supply power source and the steam power source 80 allows the steam power source 80 to draw in some liquid while drawing in steam, resulting in a gas-liquid mixture. This mixture is then injected into the cooking chamber 101 through the steam injection structure 60, achieving a better cleaning effect on dirt.
[0057] like Figure 6 As shown, in another optional embodiment, the inner liner 10 is further provided with a liquid inlet 102 communicating with the cooking cavity 101. The liquid inlet 102, steam outlet 103, and steam injection assembly hole 104 are spaced apart. The liquid inlet pipe 30 includes a first liquid inlet pipe 31 and a second liquid inlet pipe 32. The first liquid inlet pipe 31 is connected between the liquid supply power source and the inlet of the electromagnetic heating coil, and the second liquid inlet pipe 32 is connected between the outlet of the electromagnetic heating coil and the liquid inlet 102. In this way, the liquid output from the liquid supply component enters the first liquid inlet pipe 31 and is transported to the electromagnetic heating coil by the first liquid inlet pipe 31. It can absorb the heat in the electromagnetic heating coil, play a cooling role, and prevent the electromagnetic heating coil from remaining in an overheated state for a long time, which helps to extend the service life of the electromagnetic heating coil. At the same time, after absorbing heat, the liquid is output to the steam generator 20 through the second liquid inlet pipe 32, which can shorten the time for the liquid to evaporate into saturated steam, which helps to improve energy efficiency. In addition, this arrangement can also reduce the interference between the liquid transport and the steam transport.
[0058] like Figure 2 and Figure 4 As shown, in a specific embodiment, at least two steam output sections 401 are provided, with the at least two steam output sections 401 spaced apart, and each steam output section 401 is fitted with an electromagnetic heating coil. This improves the efficiency of outputting superheated steam to the cooking cavity 101.
[0059] In a specific embodiment, the electromagnetic heating coils of each steam output section 401 can be independently connected to the first liquid inlet pipe 31 and the second liquid inlet pipe 32. Only a corresponding number of first liquid inlet pipes 31 and second liquid inlet pipes 32 need to be set for the number of electromagnetic heating coils. Alternatively, two or more electromagnetic heating coils can be interconnected, for example, by adding pipelines. In this case, it is only necessary to connect the inlet of one electromagnetic heating coil to the first liquid inlet pipe 31 and the outlet of the other electromagnetic heating coil to the second liquid inlet pipe 32; or, a multi-way valve can be set to allow one first liquid inlet pipe 31 to connect to the inlets of multiple electromagnetic heating coils; or, a multi-way valve can be set to allow one second liquid inlet pipe 32 to connect to the outlets of multiple electromagnetic heating coils.
[0060] like Figures 6 to 8 As shown, in a specific embodiment, the steam outlet pipeline 40 includes a main steam outlet pipeline 41 and at least two spaced-apart steam outlet branches 42. Each steam outlet branch 42 is connected to the main steam outlet pipeline 41, and each steam outlet branch 42 forms a steam output section 401. The main steam outlet pipeline 41 is connected to the steam outlet 103. Thus, saturated steam enters the main steam outlet pipeline 41 from the steam outlet 103, and then is diverted into the at least two steam outlet branches 42, so that steam is output from the at least two steam output sections 401.
[0061] like Figure 2 and Figure 7 As shown, in a specific embodiment, the steam oven 100 also includes a temperature sensor, which includes a temperature probe 70. The temperature probe 70 is installed inside the cooking cavity 101 and close to the steam injection assembly hole 104, and is capable of detecting the temperature of the output superheated steam.
[0062] In a specific embodiment, the steam oven 100 also includes an instruction panel, through which the user can input instructions.
[0063] In a specific embodiment, the steam oven 100 also includes a control circuit board for receiving the detection signal from the temperature sensor and comparing the detection signal with the superheated steam temperature required by the user instruction, so as to control the current output to the electromagnetic heating coil and thus control the amount of heat generated so that the output superheated steam meets the user's needs.
[0064] like Figure 1 As shown, in a specific embodiment, the steam oven 100 also includes a shell 90, and an inner liner 10 is installed inside the shell 90. A sandwich cavity is provided between the shell 90 and the inner liner 10. The liquid inlet pipe 30 and the steam outlet pipe 40 are arranged in the sandwich cavity to protect the liquid inlet pipe 30 and the steam outlet pipe 40 and to reduce the outward dissipation of heat.
[0065] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0066] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.
Claims
1. A steam oven, characterized by include: The inner pot (10) is provided with a cooking cavity (101), a steam outlet (103) and a steam injection assembly hole (104); the steam outlet (103) and the steam injection assembly hole (104) are spaced apart and respectively connected to the cooking cavity (101); A steam generator (20) includes a steam generating plate (21) which is mounted on the bottom of the cooking cavity (101); The liquid supply assembly includes a liquid inlet pipe (30) connected to the steam generator (21); The steam outlet pipe (40) is connected at one end to the steam outlet (103) and at the other end to a steam output section (401). The steam output section (401) passes through the steam injection assembly hole (104) and extends from the steam injection assembly hole (104) into the cooking chamber (101). The steam output section (401) forms the outlet of the steam outlet pipe (40). A steam injection structure (60) is installed at the outlet of the steam outlet pipe (40); the steam injection structure (60) includes a rotatable nozzle (62), the nozzle (62) having an injection port (6221) connected to the steam outlet pipe (40).
2. The steam oven according to claim 1, characterized in that The number of the spray nozzles (6221) is multiple; at least one of the spray nozzles (6221) is located at the head of the nozzle (62); and / or, at least two of the spray nozzles (6221) are arranged at intervals along the circumference of the nozzle (62).
3. The steam oven according to claim 1, characterized in that, The extension direction of the injection port (6221) is inclined relative to the axial direction of the steam injection structure (60).
4. The steam oven according to claim 1, characterized in that, The steam oven includes a heating element (50) located within the cooking cavity (101) and installed in the steam output section (401).
5. The steam oven according to claim 4, characterized in that The heating element (50) is configured as an electromagnetic heating coil, which is sleeved on the steam output section (401) and spirally wound along the axial direction of the steam output section (401).
6. The steam oven according to claim 5, characterized in that The liquid supply assembly includes a liquid storage tank and a liquid supply power source, wherein the liquid supply power source is connected between the liquid storage tank and the liquid inlet pipe (30); The steam oven also includes a steam power source (80), which is installed in the steam outlet pipe (40); The heating element (50) is configured to heat the steam output section (401) in response to the operation of the steam power source (80).
7. The steam oven according to claim 6, characterized in that The liquid inlet pipe (30) includes a first liquid inlet pipe (31) and a second liquid inlet pipe (32); the first liquid inlet pipe (31) is connected between the liquid supply power source and the inlet of the electromagnetic heating coil, and one end of the second liquid inlet pipe (32) is connected to the outlet of the electromagnetic heating coil, and the other end is connected to the steam outlet pipe (40), and the other end is located between the steam power source (80) and the steam outlet (103); The steam oven has a steam mode and a cleaning mode; in the steam mode, the liquid supply power source and the steam power source (80) operate alternately; in the cleaning mode, the steam power source (80) operates continuously, and the liquid supply power source operates intermittently.
8. The steam oven according to claim 6, characterized in that The inner liner (10) is also provided with a liquid inlet (102) communicating with the cooking cavity (101), and the liquid inlet (102), the steam outlet (103) and the steam injection assembly hole (104) are spaced apart; The liquid inlet pipe (30) includes a first liquid inlet pipe (31) and a second liquid inlet pipe (32); the first liquid inlet pipe (31) is connected between the liquid supply power source and the inlet of the electromagnetic heating coil, and the second liquid inlet pipe (32) is connected between the outlet of the electromagnetic heating coil and the liquid inlet (102).
9. The steam oven according to any one of claims 1 to 8, characterized in that The steam injection structure (60) includes a base (61) connected to the steam output section (401), a nozzle (62) sleeved on the base (61), and a rolling element (63) is provided between the nozzle (62) and the base (61) along the radial direction of the steam injection structure (60).
10. The steam oven according to claim 9, characterized in that The nozzle (62) includes a first limiting part (6211) protruding inward along its own radial direction, and a second limiting part (611) protruding outward along the radial direction of the nozzle (62). The first limiting part (6211) is located between the steam output section (401) and the second limiting part (611). Along the axial direction of the steam injection structure (60), the rolling element (63) is sandwiched between the first limiting part (6211) and the second limiting part (611).