Steaming oven
By installing a steam generator and heating components inside the steam oven, the steam output section is directly heated to form superheated steam, thus solving the problem of heat efficiency loss in steam ovens and achieving efficient food cooking and energy-saving effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-17
AI Technical Summary
Existing steam ovens suffer significant heat loss when delivering superheated steam to food, resulting in reduced cooking efficiency.
A steam generator and heating element are installed in the inner cavity of the steam oven. The heating element directly heats the saturated steam in the steam output section to form superheated steam, which is then directly output to the cooking cavity, reducing heat loss.
It improves the thermal efficiency of the steam oven, shortens the cooking time of food, reduces power consumption, and enhances the user experience.
Smart Images
Figure CN224125767U_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] Saturated steam typically has a temperature of 100°C. To improve cooking efficiency, superheated steam is usually required to speed up the cooking of food.
[0003] If the air in saturated steam is heated, for example, in a steam oven with a superheated steam mode, the heating element in the saturated steam heats the air. As the temperature rises, more of the heating element is involved, causing the steam in the cavity to become thinner, resulting in dry food. Therefore, saturated steam is usually reheated to obtain superheated steam, which is then introduced into the steam oven. However, this process results in significant heat loss. Utility Model Content
[0004] Therefore, it is necessary to provide a steam oven that reduces heat loss while delivering superheated steam to the cooking cavity.
[0005] The steam oven includes an inner cavity, a steam generator, a liquid inlet pipe, a steam outlet pipe, and a heating assembly. The inner cavity has a cooking chamber and a steam heating port connected to the cooking chamber. The steam generator is installed in the inner cavity. The liquid inlet pipe is connected to the inlet of the steam generator. One end of the steam outlet pipe is connected to the outlet of the steam generator, and the other end is configured as a steam output section. The steam output section passes through the steam heating port and extends into the cooking chamber, forming the outlet of the steam outlet pipe. The heating assembly includes a heating element, which is located inside the cooking chamber and installed in the steam output section.
[0006] Understandably, the liquid inlet pipe supplies liquid to the steam generator, which produces saturated steam. This saturated steam enters the steam outlet pipe and is heated by the heating element to become superheated steam. The superheated steam is then output from the steam output section into the cooking chamber to heat the food. Because the heating element is located inside the cooking chamber and installed in the steam output section, it can directly heat the saturated steam in the steam output section. The resulting superheated steam can immediately enter the cooking chamber, thus reducing heat loss.
[0007] In one embodiment, the inner liner is provided with a liquid inlet and a steam outlet spaced apart; the liquid inlet and the steam outlet are respectively connected to the cooking cavity; the liquid inlet pipe is connected to the liquid inlet, and the steam outlet pipe is connected to the steam outlet; the steam generator is installed in the cooking cavity, the inlet of the steam generator is connected to the liquid inlet, and the outlet of the steam generator is connected to the cooking cavity.
[0008] In one embodiment, the steam generator includes a steam generating plate disposed at the bottom of the inner liner, the opening of the steam generating plate forming the inlet and outlet of the steam generator; the steam heating port is located at or near the top of the inner liner; the steam oven also includes a storage tray, which is located between the steam generating plate and the steam heating port along the height direction.
[0009] 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.
[0010] In one embodiment, the steam oven is provided with a liquid supply assembly on the outside of the inner cavity, and 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 assembly 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.
[0011] In one embodiment, at least two steam output sections are provided, the at least two steam output sections are spaced apart, and each steam output section is fitted with an electromagnetic heating coil.
[0012] In one embodiment, the steam outlet pipeline includes a main steam outlet and at least two spaced-apart steam outlet branches, each of the steam outlet branches being connected to the main steam outlet and forming the steam output section, and the main steam outlet being connected to the steam outlet.
[0013] In one embodiment, the steam oven further includes a temperature sensor installed inside the cooking cavity and near the steam heating port.
[0014] In one embodiment, the steam oven further includes a steam pump installed in the steam outlet line.
[0015] In one embodiment, the steam oven further includes a shell, the inner liner is installed inside the shell, and a sandwich cavity is provided between the shell and the inner liner, with the liquid inlet pipe and the steam outlet pipe arranged in the sandwich cavity. 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 three-dimensional structural diagram of the steam oven structure provided in this application from a first orientation;
[0018] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;
[0019] Figure 3 This is a front view of the structure of the steam oven provided in this application;
[0020] Figure 4 This is a rear view of the structure of the steam oven provided in this application;
[0021] Figure 5 This is a three-dimensional structural diagram of the steam oven structure provided in this application from a second orientation.
[0022] Figure 6 This is a three-dimensional structural diagram of the steam oven structure provided in this application from a third orientation.
[0023] Figure 7 for Figure 6 A magnified view of a section at point B.
[0024] Reference numerals: 100, Steam oven; 1001, Jacketed cavity; 10, Inner liner; 101, Cooking cavity; 102, Liquid inlet; 103, Steam outlet; 104, Steam heating port; 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 assembly; 51, Heating element; 60, Storage tray; 70, Temperature sensor; 80, Steam pump; 90, Housing. Detailed Implementation
[0025] 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.
[0026] 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.
[0027] 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.
[0028] 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.
[0029] 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.
[0030] Please see Figures 1 to 7 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.
[0031] The steam oven 100 also includes a steam generator 20, a liquid inlet pipe 30, and a steam outlet pipe 40. The steam generator 20 is installed in the inner cavity 10. The liquid inlet pipe 30 is connected to the inlet of the steam generator 20 to supply liquid, such as water, to the steam generator 20. The steam generator 20 is capable of generating saturated steam. One end of the steam outlet pipe 40 is connected to the outlet of the steam generator 20, and saturated steam can be output from the steam generator 20 to the steam outlet pipe 40. The inner cavity 10 is also provided with a steam heating port 104 communicating with the cooking cavity 101. The other end of the steam outlet pipe 40 is configured as a steam output section 401, which passes through the steam heating port 104 and extends into the cooking cavity 101. The steam output section 401 forms the outlet of the steam outlet pipe 40, which can output steam to the inner cavity 10.
[0032] like Figure 1 and Figure 2 As shown, the steam oven 100 further includes a heating assembly 50, which includes a heating element 51 located in the cooking cavity 101 and installed in the steam output section 401. The heating element 51 can directly heat the saturated steam in the steam output section 401 to form superheated steam. The superheated steam can directly enter the inner liner 10 from the steam output section 401, reducing heat efficiency loss.
[0033] In summary, by setting up a steam generator 20 to generate saturated steam, and by placing the heating element 51 in the inner liner 10 and heating the steam output section 401 of the steam outlet pipe 40, the generated superheated steam can be immediately output to the inner liner 10, reducing heat loss and eliminating the need for additional heat preservation or insulation measures, thus reducing costs and helping to reduce power consumption and improve energy efficiency. The superheated steam can quickly contact the food, which helps to speed up the steaming process and improve the user experience.
[0034] like Figure 3 and Figure 4As shown, in an optional embodiment, the inner liner 10 is provided with a liquid inlet 102 and a steam outlet 103 spaced apart; the liquid inlet 102 and the steam outlet 103 are respectively connected to the cooking chamber 101; the liquid inlet pipe 30 is connected to the liquid inlet 102, and the steam outlet pipe 40 is connected to the steam outlet 103; the steam generator 20 is installed inside the cooking chamber 101, with its inlet connected to the liquid inlet 102 and its outlet connected to the cooking chamber 101. Thus, the liquid inlet pipe 30 can supply liquid to the steam generator 20 from the liquid inlet 102, and the saturated steam generated by the steam generator 20 can directly enter the cooking chamber 101 to preheat the food, thereby accelerating the cooking process and improving the utilization rate of steam. The steam generator 20 continuously generates saturated steam, which can be output from the steam outlet 103 to the steam outlet pipe 40. In addition, by placing the steam generator 20 in the cooking chamber 101, the saturated steam is generated inside the cooking chamber 101 and does not come into contact with the outside, which can also reduce heat efficiency loss.
[0035] like Figure 5 As shown, in a specific embodiment, the steam generator 20 includes a steam generating plate 21, which is located at the bottom of the inner liner 10. The opening of the steam generating plate 21 forms the inlet and outlet of the steam generator 20. Thus, because the opening of the steam generating plate 21 is relatively large, the generated saturated steam can quickly diffuse into the cooking cavity 101, improving the diffusion efficiency of the saturated steam.
[0036] like Figures 5 to 7 As shown, in a specific embodiment, the steam heating port 104 is located at or near the top of the inner cavity 10. The steam oven 100 also includes a tray 60, which is located between the steam generating plate 21 and the steam heating port 104 along the height direction. This arrangement facilitates the steam output section 401 at the steam heating port 104 to spray superheated steam toward the food in the tray 60, allowing the superheated steam to quickly contact the food.
[0037] like Figure 1 and Figure 2 As shown, in a specific embodiment, the heating element 51 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.
[0038] In a specific embodiment, the steam output section 401 is made of metal.
[0039] In a specific embodiment, the electromagnetic heating coil passes through the inner pot 10 and extends outward from the cooking cavity 101 to connect with an external circuit. The heating element 51 assembly 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.
[0040] In a specific embodiment, the steam oven 100 is provided with a liquid supply component on the outside of the inner liner 10. The liquid supply component is connected to the inlet of the liquid inlet pipe 30 to provide liquid to the liquid inlet pipe 30, which plays the role of liquid transportation.
[0041] In a specific embodiment, the liquid supply assembly includes a water tank containing liquid. Furthermore, the liquid supply assembly also includes a water pump connected between the water tank and the liquid supply pipeline to provide power for the delivery of the liquid.
[0042] like Figure 4 , Figure 6 and Figure 7 As shown, in a specific 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 component 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. Thus, the liquid output from the liquid supply component 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 to the steam generator 20 through the second liquid inlet pipe 32, shortening the time it takes for the liquid to evaporate into saturated steam and improving energy efficiency.
[0043] like Figure 2 As shown, in a specific embodiment, at least two steam output sections 401 are provided, 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, thus accelerating the cooking of food.
[0044] 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.
[0045] like Figure 7 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.
[0046] like Figure 4 and Figure 6 As shown, in a specific embodiment, the steam oven 100 also includes a steam pump 80, which is installed in the steam outlet pipe 40 to provide power for the delivery of saturated steam. It can draw saturated steam from the cooking cavity 101 into the steam outlet pipe 40. Since the saturated steam generated from the steam generator 20 can be directly drawn into the steam outlet pipe 40, and there are almost no impurities in the saturated steam, it will not cause blockage of the steam outlet pipe 40, which helps to extend its service life.
[0047] like Figure 2 As shown, in a specific embodiment, the steam oven 100 also includes a temperature sensor 70, which is installed inside the cooking cavity 101 and close to the steam heating port 104, and is capable of detecting the temperature of the output superheated steam.
[0048] In a specific embodiment, the steam oven 100 also includes an instruction panel, through which the user can input instructions.
[0049] In a specific embodiment, the steam oven 100 also includes a control circuit board for receiving the detection signal from the temperature sensor 70 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, thereby controlling the amount of heat generated, so that the output superheated steam meets the user's needs.
[0050] like Figures 1 to 7 As shown, in a specific embodiment, the steam oven 100 also includes a shell 90, with an inner liner 10 installed inside the shell 90. A sandwich cavity 1001 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 1001 to protect the liquid inlet pipe 30 and the steam outlet pipe 40 and to reduce the outward dissipation of heat.
[0051] 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.
[0052] 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) and a steam heating port (104) communicating with the cooking cavity (101); A steam generator (20) is installed in the inner liner (10); The liquid inlet pipe (30) is connected to the inlet of the steam generator (20); The steam outlet pipe (40) is connected at one end to the outlet of the steam generator (20) and at the other end to a steam output section (401). The steam output section (401) passes through the steam heating port (104) and extends into the cooking chamber (101). The steam output section (401) forms the outlet of the steam outlet pipe (40). The heating assembly (50) includes a heating element (51) located within the cooking cavity (101) and installed in the steam output section (401).
2. The steam oven according to claim 1, characterized in that The inner liner (10) is provided with a liquid inlet (102) and a steam outlet (103) spaced apart; the liquid inlet (102) and the steam outlet (103) are respectively connected to the cooking cavity (101); the liquid inlet pipe (30) is connected to the liquid inlet (102), and the steam outlet pipe (40) is connected to the steam outlet (103); The steam generator (20) is installed inside the cooking chamber (101), the inlet of the steam generator (20) is connected to the liquid inlet (102), and the outlet of the steam generator (20) is connected to the cooking chamber (101).
3. The steam oven according to claim 2, characterized in that The steam generator (20) includes a steam generating plate (21), which is located at the bottom of the inner liner (10). The opening of the steam generating plate (21) forms the inlet and outlet of the steam generator (20). The steam heating port (104) is located at or near the top of the inner liner (10); The steam oven also includes a storage tray (60) located between the steam generating plate (21) and the steam heating port (104) along the height direction.
4. The steam oven according to claim 2, characterized in that The heating element (51) 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).
5. The steam oven according to claim 4, characterized in that The steam oven is provided with a liquid supply component on the outside of the inner liner (10). 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 component 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).
6. The steam oven according to claim 4, characterized in that At least two steam output sections (401) are provided, and the at least two steam output sections (401) are spaced apart, and each steam output section (401) is fitted with an electromagnetic heating coil.
7. The steam oven according to claim 6, characterized in that The steam outlet pipeline (40) includes a main steam outlet pipeline (41) and at least two spaced-apart steam outlet branches (42), each of the steam outlet branches (42) being connected to the main steam outlet pipeline (41), each of the steam outlet branches (42) forming the steam output section (401), and the main steam outlet pipeline (41) being connected to the steam outlet (103).
8. The steam oven according to any one of claims 1 to 7, characterized in that The steam oven also includes a temperature sensor (70), which is installed inside the cooking cavity (101) and close to the steam heating port (104).
9. The steam oven according to any one of claims 1 to 7, characterized in that The steam oven also includes a steam pump (80), which is installed in the steam outlet pipe (40).
10. The steam oven according to any one of claims 1 to 7, characterized in that The steam oven also includes a shell (90), and the inner liner (10) is installed inside the shell (90). A sandwich cavity (1001) 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 (1001).