Steam oven
By installing a water inlet pipe inside the air guide cavity to preheat the steam and then expelling it through the air guide assembly, the problem of high temperature and humidity in the kitchen caused by steam exhaust from the steam oven is solved, achieving energy saving and improved safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO FOTILE KITCHEN WARE CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-24
AI Technical Summary
Existing steam ovens emit steam during operation, which significantly increases the temperature and humidity of the kitchen environment. They are energy-intensive and may burn the user's skin. They also require a continuous input of cold water to heat and provide steam.
Design a steam oven that uses a water inlet pipe inside the air guide cavity to preheat water vapor in the pipe, reducing energy consumption, and uses an air guide assembly to discharge the preheated water vapor, reducing the heat and humidity emitted into the kitchen.
This reduces energy consumption while minimizing heat and humidity emitted from the steam oven into the kitchen, improving user experience and safety, and avoiding the risk of burns.
Smart Images
Figure CN224539947U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of kitchen appliances technology, and in particular to a steam oven. Background Technology
[0002] In the operation of a steam oven, water plays a crucial role as the core medium. In this technology, the user first adds cold water to the steam oven's built-in water tank. After starting the steaming program, the water pump powers the water from the tank into the oven cavity. At this point, the heating plate inside the cavity is rapidly heated, and the cold water in contact with the heating plate is continuously heated to boiling, thus converting into high-temperature steam. The steam evenly accumulates within the cavity, steaming the food through heat transfer. Excess steam generated during cooking is then transported to a deflector via a dedicated exhaust pipe, where it is guided and orderly discharged outside the equipment.
[0003] However, the emitted steam significantly increases the temperature and humidity of the kitchen environment, making it stuffy and humid. It may also cause skin burns due to close contact with the user. Furthermore, the entire process requires a continuous supply of cold water for heating to provide steam, resulting in high energy consumption. Utility Model Content
[0004] Therefore, it is necessary to provide a steam oven that reduces energy consumption while minimizing the heat emitted from the steam oven into the kitchen.
[0005] The steam oven includes an inner liner, an air guide assembly, a steam exhaust pipe, and a water inlet assembly. The inner liner has a cooking cavity. The air guide assembly is installed on the outer surface of the inner liner. The air guide assembly includes an air guide shroud and a fan installed on the air guide shroud. The air guide shroud has an air guide cavity and an air guide outlet. The air guide outlet connects the air guide cavity and the outside of the steam oven. The air inlet of the fan is located outside the air guide shroud and forms fluid flow with the outside of the steam oven. The air outlet of the fan is located inside the air guide cavity. The steam exhaust pipe is installed in the inner liner and connects the cooking cavity and the air guide cavity. The water inlet assembly is installed on the outer surface of the inner liner. The water inlet assembly includes a water inlet pipe that passes through the air guide cavity and connects to the cooking cavity. Within the air guide cavity, the water inlet pipe is located at the air outlet of the fan, and the outlet of the steam exhaust pipe is located on the side of the water inlet pipe away from the air guide outlet.
[0006] Understandably, the water inlet pipe supplies water to the cooking cavity, where it is heated to form steam. This steam then flows through the exhaust pipe into the air duct cavity and, under the influence of the fan's airflow, is exhausted to the outside environment through the air duct outlet. Because the water inlet pipe passes through this air duct cavity, it absorbs the heat from the steam, preheating the water before it enters the cooking cavity. This reduces the energy consumed in heating the water into steam within the cooking cavity, shortening the heating time. Simultaneously, the steam releases some heat before entering the kitchen, reducing the temperature rise caused by steam emissions, alleviating and improving the humid and hot environment, and enhancing the user experience.
[0007] In one embodiment, the outlet of the exhaust pipe is located on the side of the fan away from the air outlet; or, both the outlet of the exhaust pipe and the water inlet pipe are located on the side of the air outlet of the fan.
[0008] In one embodiment, the water inlet pipe includes at least two delivery pipe sections and a heat dissipation pipe section. The heat dissipation pipe section is disposed in the air guide cavity. One end of the heat dissipation pipe section along its own extension direction is connected to one of the delivery pipe sections, and the other end is connected to another delivery pipe section. The heat dissipation pipe section is arranged in a reciprocating bending and coiling manner.
[0009] In one embodiment, the water inlet assembly includes a heat sink mounted on the heat dissipation pipe section.
[0010] In one embodiment, the water inlet assembly includes a plurality of heat sinks; the plurality of heat sinks are arranged along the conveying direction of the water inlet pipe, and a flow gap is formed between two adjacent heat sinks; and / or, any two adjacent heat sinks are connected to form a heat sink group, the heat sink group being arranged in a reciprocating bending and coiling manner along the conveying direction of the water inlet pipe.
[0011] In one embodiment, the heat sink and / or the heat pipe segment are made of copper.
[0012] In one embodiment, the water inlet assembly further includes a control valve installed in the water inlet pipe; and / or, the water inlet assembly includes a water storage structure connected to the inlet of the water inlet pipe; and / or, the water inlet assembly includes a water supply power source installed in the water inlet pipe.
[0013] In one embodiment, the steam oven includes a shell, which is installed outside the inner liner and surrounds the inner liner to form a sandwich cavity, wherein the air guide assembly, the steam exhaust pipe and the water inlet assembly are respectively installed in the sandwich cavity;
[0014] An air outlet gap is provided between the shell and the inner liner, which connects the sandwich cavity and the outside of the steam oven. The air guide hood passes through the air outlet gap and forms the air outlet at the air outlet gap.
[0015] In one embodiment, both the air guide assembly and the water inlet assembly are located at the top of the inner liner;
[0016] The steam oven also includes a light source, which is installed on the top of the inner cavity. A portion of the light source is located in the air guide cavity and on the side of the water inlet pipe away from the air outlet; and / or, the steam oven also includes a circuit board, which is installed on the outer surface of the air guide cover.
[0017] In one embodiment, the steam oven further includes a heating plate disposed at the bottom of the cooking cavity, and the outlet of the water inlet pipe is located above the heating plate. Attached Figure Description
[0018] 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.
[0019] Figure 1 A perspective view of a steam oven provided in an embodiment of this application;
[0020] Figure 2 A top view of a steam oven provided in an embodiment of this application;
[0021] Figure 3 This is a top view of the steam oven provided in the embodiment of this application after removing the air guide shroud;
[0022] Figure 4 This is a schematic diagram of the heat dissipation pipe section and heat sink in the steam oven provided in the embodiments of this application;
[0023] Figure 5 This is a perspective view of the steam oven provided in an embodiment of this application.
[0024] Reference numerals: 100, Steam oven; 1001, Jacketed cavity; 11, Inner liner; 101, Cooking cavity; 12, Shell; 20, Air guide assembly; 201, Air outlet; 21, Air guide shroud; 22, Fan; 2201, Air inlet; 2202, Air outlet; 30, Exhaust pipe; 40, Water inlet assembly; 41, Water inlet pipe; 411, Delivery pipe section; 412, Heat dissipation pipe section; 42, Heat dissipation fin assembly; 421, Heat dissipation fin; 4201, Flow gap; 43, Control valve; 44, Water storage structure; 45, Water supply power source; 50, Lighting lamp; 60, Circuit board; 70, Heating plate; 80, Baking tray. 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 5 This application provides a steam oven 100, which includes an inner cavity 11, an air guide assembly 20, a steam exhaust pipe 30, and a water inlet assembly 40. The inner cavity 11 has a cooking cavity 101 for cooking food. The water inlet assembly 40 is installed on the outer surface of the inner cavity 11. The water inlet assembly 40 includes a water inlet pipe 41, which is connected to the cooking cavity 101 to supply water to the cooking cavity 101, where the water can be heated to form steam. The steam exhaust pipe 30 is installed in the inner cavity 11 and connected to the cooking cavity 101, allowing excess steam in the cooking cavity 101 to be discharged outwards through the steam exhaust pipe 30. The air guide assembly 20 is installed on the outer surface of the inner liner 11. The air guide assembly 20 includes an air guide shroud 21 and a fan 22 installed on the air guide shroud 21. The air guide shroud 21 has an air guide cavity and an air guide outlet 201, which connects the air guide cavity to the outside of the steam oven 100. The air inlet 2201 of the fan 22 is located outside the air guide shroud 21 and forms fluid flow with the outside of the steam oven 100. The air outlet 2202 of the fan 22 is located inside the air guide cavity. The fan 22 operates to deliver airflow from the air inlet to the air guide cavity. The exhaust pipe 30 is also connected to the air guide cavity, enabling water vapor to be input into the air guide cavity. Under the blowing of the airflow, the water vapor can be transported from the air guide cavity to the external environment.
[0031] like Figure 3As shown, furthermore, the water inlet pipe 41 passes through the air guide cavity. Within the air guide cavity, the water inlet pipe 41 is located at the air outlet 2202 of the fan 22, and the outlet of the exhaust pipe 30 is located on the side of the water inlet pipe 41 away from the air outlet 201. In this way, water vapor can pass through the water inlet pipe 41 under the influence of airflow. The water in the water inlet pipe 41 can absorb the heat from the water vapor, allowing the water to be preheated before being delivered to the cooking cavity 101. This increases the temperature of the water entering the cooking cavity 101, thus shortening the heating time and quickly generating steam for cooking food, accelerating the cooking process. Simultaneously, it also reduces energy consumption, making the steam oven 100 more energy-efficient. In addition, the water vapor releases some heat after exchanging heat with the water inlet pipe 41, which lowers the temperature of the water vapor discharged into the kitchen and reduces the temperature rise in the kitchen. This is especially helpful in summer to prevent the kitchen from overheating and reduce discomfort. At the same time, it also helps to prevent users from being scalded by the hot steam when they get close to the steam oven 100, thus improving safety and enhancing the user experience.
[0032] In summary, the water inlet pipe 41, which is installed through the air guide cavity, not only achieves water preheating but also reduces the temperature of the discharged water vapor, thereby reducing the heat emitted from the steam oven 100 to the kitchen while reducing energy consumption.
[0033] like Figure 1 As shown, in a specific embodiment, the steam oven 100 further includes a heating plate 70 disposed at the bottom of the cooking cavity 101, and the outlet of the water inlet pipe 41 is located above the heating plate 70. Water entering through the water inlet pipe 41 collects in the heating plate 70 and is heated by the heating plate 70 to form steam. In a more specific embodiment, the steam oven 100 includes a baking tray 80, which is disposed above the heating plate 70, and the outlet of the water inlet pipe 41 is located between the heating plate 70 and the baking tray 80.
[0034] like Figure 3 As shown, in an optional embodiment, the outlet of the exhaust pipe 30 is located on the side of the fan 22 away from the air outlet 2202, so that the exhaust pipe 30 is far away from the water inlet pipe 41, thereby extending the heat exchange time between water vapor and airflow.
[0035] In another optional embodiment, the outlet of the exhaust pipe 30 and the water inlet pipe 41 are both located on one side of the air outlet 2202 of the fan 22. The airflow output from the air outlet 2202 can directly blow water vapor toward the water inlet pipe 41, which is conducive to the water vapor exchanging heat more quickly and being discharged from the air guide outlet 201.
[0036] like Figures 2 to 4As shown, in a specific embodiment, the water inlet pipe 41 includes at least two conveying pipe sections 411 and one heat dissipation pipe section 412. The heat dissipation pipe section 412 is disposed in the air guide cavity. One end of the heat dissipation pipe section 412 along its own extension direction is connected to a conveying pipe section 411, and the other end is connected to another conveying pipe section 411. The heat dissipation pipe section 412 is arranged in a reciprocating bending and coiling manner to prolong the time that water flows in the heat dissipation pipe section 412, promote sufficient heat exchange between water and water vapor, increase the heat absorbed by water, and improve heat exchange efficiency.
[0037] like Figure 3 and Figure 4 As shown, in a specific embodiment, the water inlet assembly 40 includes a heat sink 421, which is installed on the heat dissipation pipe section 412. The heat sink 421 can increase the contact area with water vapor, thereby enhancing the heat exchange effect.
[0038] like Figure 3 and Figure 4 As shown, in a specific embodiment, the water inlet assembly 40 includes a plurality of heat sinks 421 to further increase the heat dissipation area. The plurality of heat sinks 421 are arranged along the conveying direction of the water inlet pipe 41, and a flow gap 4201 is formed between two adjacent heat sinks 421 so that the airflow can carry water vapor through the flow gap 4201.
[0039] like Figure 3 and Figure 4 As shown, in a specific embodiment, any two adjacent heat sinks 421 are connected to form a heat sink group 42. The heat sink group 42 is arranged in a reciprocating bending and coiling manner along the conveying direction of the water inlet pipe 41. By setting the heat sink group 42, multiple heat sinks 421 are formed into a whole. The heat sink group 42 can form a more stable assembly with the heat dissipation pipe section 412, and it is not easy to tip over.
[0040] In a specific embodiment, the heat sink 421 and / or the heat dissipation pipe section 412 are made of copper to have excellent thermal conductivity and improve heat exchange efficiency.
[0041] like Figure 2 and Figure 3 As shown, in a specific embodiment, the water inlet assembly 40 includes a water storage structure 44 connected to the inlet of the water inlet pipe 41. The water storage structure 44 is capable of storing a large amount of water so that the water inlet pipe 41 can continuously supply water to the cooking cavity 101.
[0042] like Figure 2 and Figure 3 As shown, in a specific embodiment, the water inlet assembly 40 further includes a water supply power source 45 installed on the water inlet pipe 41. The water supply power source 45 is located between the air guide assembly 20 and the water storage structure 44, providing a power source for water transportation. For example, the water supply power source 45 is configured as a water pump.
[0043] like Figure 2 and Figure 3 As shown, in a specific embodiment, the water inlet assembly 40 also includes a control valve 43 installed on the water inlet pipe 41 to control the flow of water through the valve 43. When water needs to be supplied to the cooking chamber 101, the control valve 43 is opened, and when no water needs to be heated in the cooking chamber 101, the cooking chamber 101 is closed.
[0044] like Figure 1 , Figure 2 and Figure 5 As shown, in a specific embodiment, the steam oven 100 includes a shell 12, which is installed outside the inner liner 11 and forms a sandwich cavity 1001 with the inner liner 11. The air guide assembly 20, the steam exhaust pipe 30 and the water inlet assembly 40 are respectively installed in the sandwich cavity 1001 to form structural protection for the air guide assembly 20, the steam exhaust pipe 30 and the water inlet assembly 40.
[0045] like Figure 5 As shown, in a specific embodiment, an air outlet gap is provided between the shell 12 and the inner liner 11, which connects the sandwich cavity 1001 and the outside of the steam oven 100. The air guide hood 21 passes through the air outlet gap and forms an air outlet 201 at the air outlet gap, so that the airflow carries water vapor outward.
[0046] In a specific embodiment, the housing 12 is provided with a plurality of spaced flow holes at the air inlet 2201 of the fan 22, and the air inlet 2201 forms airflow with the outside through the flow holes.
[0047] like Figures 1 to 3 As shown, in a specific embodiment, both the air guide assembly 20 and the water inlet assembly 40 are located on the top of the inner liner 11. The steam oven 100 also includes a light 50, which is installed on the top of the inner liner 11. Part of the structure of the light 50 is located in the air guide cavity and on the side of the water inlet pipe 41 away from the air outlet 2202. The light outlet of the light 50 is located in the cooking cavity 101. With this arrangement, the airflow in the air guide cavity can also dissipate heat from the light 50. At the same time, since the water vapor is transported to the light 50 after exchanging heat with the water inlet pipe 41, the heat of the water vapor is reduced, thereby reducing the impact on the heat dissipation of the light 50.
[0048] like Figure 2 and Figure 3 As shown, in a specific embodiment, the steam oven 100 also includes a circuit board 60, which is mounted on the outer surface of the air guide shroud 21. The heat emitted by the circuit board 60 is exchanged with the airflow in the air guide cavity through the air guide shroud 21. The heat is reduced after the water vapor exchanges heat with the water inlet pipe 41, which helps to reduce the impact on the heat dissipation of the circuit board 60 and avoids the circuit board 60 from overheating and causing safety hazards.
[0049] In a specific embodiment, the steam oven 100 also includes a door body. The door body is rotatably connected to the inner liner 11 or the outer shell 12 relative to the cooking cavity 101. The air outlet gap is provided above the door body, that is, the air guide outlet 201 is provided above the door body, so that after cooking is finished and the door body is opened, the water vapor in the cooking cavity 101 can be output to the external environment together with the water vapor in the air guide cavity. The water vapor output from the air guide cavity can be mixed with the water vapor output from the cooking cavity 101 to form further heat exchange, so as to reduce the overall temperature of the output water vapor.
[0050] In a specific embodiment, the steam oven 100 can be controlled by a voice module, which is equipped with a controller, a voice receiving module, and a voice parsing module. The voice receiving module receives user commands, and the voice parsing module parses the commands. Based on the parsed commands, the controller controls the steam oven 100 to perform the corresponding steaming and baking operations, thereby realizing the intelligent control of the steam oven 100 and improving the user experience.
[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 in that, The inner pot has a cooking cavity; An air guide assembly is installed on the outer surface of the inner liner; the air guide assembly includes an air guide shroud and a fan installed on the air guide shroud, the air guide shroud is provided with an air guide cavity and an air guide outlet, the air guide outlet is connected between the air guide cavity and the outside of the steam oven, the air inlet of the fan is located outside the air guide shroud and forms fluid flow with the outside of the steam oven, and the air outlet of the fan is located inside the air guide cavity; The exhaust pipe is installed in the inner liner and connects the cooking cavity and the air guide cavity; A water inlet assembly is installed on the outer surface of the inner liner. The water inlet assembly includes a water inlet pipe that passes through the air guide cavity and is connected to the cooking cavity. Within the air guide cavity, the water inlet pipe is located at the air outlet of the fan, and the outlet of the exhaust pipe is located on the side of the water inlet pipe away from the air guide outlet.
2. The steam oven according to claim 1, characterized in that, The outlet of the exhaust pipe is located on the side of the fan away from the air outlet; or, the outlet of the exhaust pipe and the water inlet pipe are both located on the side of the air outlet of the fan.
3. The steam oven according to claim 1, characterized in that, The water inlet pipe includes at least two conveying pipe sections and one heat dissipation pipe section. The heat dissipation pipe section is located in the air guide cavity. One end of the heat dissipation pipe section is connected to one of the conveying pipe sections along its own extension direction, and the other end is connected to another conveying pipe section. The heat dissipation pipe section is arranged in a reciprocating bending and coiling manner.
4. The steam oven according to claim 3, characterized in that, The water inlet assembly includes heat sinks, which are installed on the heat dissipation pipe section.
5. The steam oven according to claim 4, characterized in that, The water inlet assembly includes a plurality of the heat sinks; Multiple heat sinks are arranged along the conveying direction of the water inlet pipe, and a flow gap is formed between two adjacent heat sinks; and / or, any two adjacent heat sinks are connected to form a heat sink group, and the heat sink group is arranged in a reciprocating bending and coiling manner along the conveying direction of the water inlet pipe.
6. The steam oven according to claim 4, characterized in that, The heat sink and / or the heat dissipation pipe section are made of copper.
7. The steam oven according to claim 1, characterized in that, The water inlet assembly further includes a control valve installed in the water inlet pipe; and / or, the water inlet assembly includes a water storage structure connected to the inlet of the water inlet pipe; and / or, the water inlet assembly includes a water supply power source installed in the water inlet pipe.
8. The steam oven according to claim 1, characterized in that, The steam oven includes a shell, which is installed outside the inner liner and forms a sandwich cavity with the inner liner. The air guide assembly, the steam exhaust pipe and the water inlet assembly are respectively installed in the sandwich cavity. An air outlet gap is provided between the shell and the inner liner, which connects the sandwich cavity and the outside of the steam oven. The air guide hood passes through the air outlet gap and forms the air outlet at the air outlet gap.
9. The steam oven according to claim 1, characterized in that, Both the air guide assembly and the water inlet assembly are located at the top of the inner liner; The steam oven also includes a light fixture, which is installed on the top of the inner cavity. A portion of the light fixture is located in the air guide cavity and on the side of the water inlet pipe furthest from the air outlet; and / or, The steam oven also includes a circuit board, which is mounted on the outer surface of the air guide shroud.
10. The steam oven according to any one of claims 1 to 9, characterized in that, The steam oven also includes a heating plate located at the bottom of the cooking cavity, and the outlet of the water inlet pipe is located above the heating plate.