Vacuumizing structure of steaming oven

Abstract

The vacuumizing structure is installed on a box body of the steaming oven and comprises a vacuumizing device and a steam discharging device, a containing cavity is formed in the box body, an air outlet and a steam outlet are formed in the containing cavity, the vacuumizing device comprises a vacuum pump, an extraction opening of the vacuum pump is communicated with the air outlet, and the steam discharging device is connected with the steam discharging device. An exhaust port of the vacuum pump communicates with the outside; the steam exhaust device comprises a steam exhaust pipeline, one end of the steam exhaust pipeline is communicated with the steam outlet, the other end of the steam exhaust pipeline is communicated with the outside, a control module is further arranged in the steam exhaust pipeline and comprises a sliding block, and the sliding block is provided with at least two movable positions and reciprocates at the movable positions so as to open or close the steam exhaust pipeline. The vacuum pump is arranged to conduct vacuum treatment on food in the containing cavity, so that the food is in a vacuum state, then the food is cooked through a vacuum low-temperature cooking method, and the situation that a large amount of water is lost in the cooking process of the food, and the taste of the food is affected is avoided.

Description

Technical Field

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

[0002] Steam ovens are commonly used cooking appliances for steaming and baking. However, cooking meat in a steam oven can cause the meat to lose moisture, resulting in a tougher texture. Sous vide cooking, a method that involves vacuum-sealing food before low-temperature steaming, significantly reduces moisture loss during cooking, thus improving the meat's texture. However, most existing steam ovens have exhaust systems connecting the oven's interior to the outside for quick removal of food, making sous vide cooking impossible.

[0003] In existing technology, such as patent document CN211609190U, a steam oven with rapid heat dissipation is disclosed. It includes a cabinet with a heat dissipation base and an exhaust assembly at the bottom and top of the cabinet, respectively. The heat dissipation base allows cold air to flow upwards through the interior of the cabinet, and then the exhaust assembly discharges it to the outside, thus achieving rapid cooling. However, this steam oven cannot vacuum-treat food and cannot use vacuum sous-vide cooking methods. Summary of the Invention

[0004] To address the problems in existing technologies, this utility model proposes a vacuum structure for a steam oven. By setting up a vacuum pump to vacuum the food inside the cavity, the food is placed in a vacuum state. Then, the food is cooked using a vacuum low-temperature cooking method, which prevents the food from losing a lot of moisture during the cooking process and affecting its taste.

[0005] This invention is implemented as follows: A vacuum structure for a steam oven is installed on the oven body and includes a vacuum device and a steam exhaust device. The oven body has a accommodating cavity with an air outlet and a steam outlet connected to the vacuum device and the steam exhaust device, respectively. The vacuum device includes a vacuum pump, with its suction port connected to the air outlet and its exhaust port connected to the outside. The vacuum pump is used to extract air from the accommodating cavity, creating a vacuum state within the cavity. This provides a vacuum environment for cooking food using the vacuum sous-vide method, enabling the steam oven to meet the basic requirements of vacuum sous-vide cooking.

[0006] The steam exhaust device includes an exhaust pipe, one end of which is connected to the steam outlet and the other end to the outside. A control module is also installed inside the exhaust pipe. The control module includes a movable slider with at least two movable positions, which reciprocate to open or close the exhaust pipe. The steam exhaust device is used to exhaust steam during regular steaming in the steam oven, preventing the cavity from being under high pressure for extended periods, thus extending the cavity's lifespan. However, when the cavity is evacuated using the vacuum device, it needs to be sealed. When the slider closes the exhaust pipe, the cavity is isolated from the outside, further sealing it and improving the vacuuming effect of the vacuum device.

[0007] Preferably, the control module further includes a drive mechanism, with the slider mounted on the output end of the drive mechanism and reciprocating along the radial direction of the exhaust pipe under the drive of the drive mechanism. By driving the slider to reciprocate, the slider automatically opens or closes the exhaust pipe, thereby enabling precise and rapid opening or closing of the exhaust pipe, improving the slider's response speed; it also reduces the need for manual intervention, further enhancing the convenience of the steam oven.

[0008] Specifically, the driving mechanism includes an electromagnet, a driving rod, and an elastic unit. When the driving mechanism is energized, the electromagnet drives the driving rod to extend or retract. When the driving mechanism is de-energized, the elastic unit drives the driving rod to reset. This simplifies the control logic of the driving mechanism, as the extension and retraction of the driving rod can be achieved simply by energizing or de-energizing the electromagnet. This avoids complex control signals and additional logic circuits, simplifies the control process of the driving mechanism, and facilitates later maintenance.

[0009] Preferably, the vacuum pumping device further includes a mounting base fixed to the housing. The mounting base includes multiple snap-fit ​​parts adapted to the vacuum pump, which snap the vacuum pump onto the mounting base. These snap-fit ​​parts eliminate the need for additional fasteners to secure the vacuum pump, greatly simplifying the installation structure and enabling quick assembly and disassembly of the vacuum pump, thus improving the convenience of installation and maintenance.

[0010] Specifically, one end of the snap-fit ​​portion has a transition surface that gradually increases in size from the outside to the inside. The snap-fit ​​portions are symmetrically arranged on both sides of the mounting base, so that the transition surface forms a flared opening that gradually increases in size from the inside to the outside. The flared opening is used for guidance and transition during the installation of the vacuum pump. Since the snap-fit ​​portion is used to fix the vacuum pump, it will inevitably create resistance to the vacuum pump during installation. The flared opening is used to guide and transition the vacuum pump during installation, making it easier to install the vacuum pump on the mounting base and improving the ease of installation.

[0011] Preferably, the steam outlets are provided in multiple locations, arranged side-by-side or staggered to form a first filter port. The first filter port prevents dirt from entering the exhaust pipe from the receiving cavity, keeping the exhaust pipe unobstructed and reducing the risk of blockage.

[0012] Preferably, the end of the exhaust pipe that connects to the outside is flat, forming an exhaust end, and the exhaust end is provided with multiple parallel second filter ports. The flat exhaust end allows the exhaust pipe to fit more closely to the housing, reducing the volume of the exhaust pipe; the second filter ports prevent external dirt from entering the exhaust pipe, further reducing the risk of blockage.

[0013] Preferably, a heating element is provided at the top of the accommodating cavity, and the heating element is meandering in an S-shape or similar shape. Multiple hanging brackets are also provided on the heating element, with one end fixed to the top of the accommodating cavity and the other end connected to the hanging bracket. The meandering heating element can more effectively cover the top area of ​​the accommodating cavity, allowing the heat emitted by the heating element to be more widely distributed to all corners of the accommodating cavity, thereby reducing temperature dead zones and improving the heat uniformity within the accommodating cavity. Because the heating element is meandering, there is a significant portion of the heating element suspended in the air. Fixing it only from both ends results in poor stability and a risk of the heating element falling off. The hanging brackets reinforce the heating element, improving its installation reliability and reducing the risk of it falling off.

[0014] Preferably, the accommodating cavity is further provided with multiple temperature sensors, which are evenly distributed within the accommodating cavity. The temperature sensors are used to detect the temperature within the accommodating cavity. Since vacuum sous-vide cooking has a temperature limit, the temperature sensors prevent the temperature within the accommodating cavity from exceeding this limit, thus improving the reliability of the steam oven.

[0015] Preferably, the vacuuming device and the steam exhaust device are respectively located on both sides of the housing. By separating the vacuuming device and the steam exhaust device, the space inside the housing can be better utilized, making the internal structure more compact, preventing excessive accumulation of structures on one side of the housing, which would lead to space constraints, and improving the space utilization rate inside the housing.

[0016] The beneficial effects of this utility model are:

[0017] This invention proposes a vacuum structure for a steam oven. By setting up a vacuum pump to vacuum the food in the container cavity, the food is placed in a vacuum state. Then, the food is cooked by vacuum low-temperature cooking, which prevents the food from losing a lot of moisture during the cooking process and affecting the taste. Furthermore, the sliding block seals the container cavity during vacuuming, which improves the effectiveness of the vacuum device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the interior of the steam oven of this utility model;

[0019] Figure 2 for Figure 1 An enlarged schematic diagram of point a;

[0020] Figure 3 This is another schematic diagram of the interior of the steam oven of this utility model;

[0021] Figure 4 This is a schematic diagram of the vacuum pumping device of the present invention.

[0022] Figure 5 This is a schematic diagram of the steam exhaust device of the vacuum structure of this utility model;

[0023] Figure 6 This is a cross-sectional view of the control module of the vacuum structure of this utility model;

[0024] Figure 7 This is a schematic diagram of the heating tube of the vacuum structure of this utility model.

[0025] Figure label:

[0026] 1. Housing; 2. Vacuum pump; 3. Steam exhaust device; 11. Air outlet; 12. Steam outlet; 13. Temperature sensor; 14. Heating element; 15. Lifting bracket; 21. Vacuum pump; 22. Mounting base; 31. Exhaust pipe; 32. Control module; 211. Air extraction port; 212. Exhaust port; 221. Snap-fit ​​part; 311. Exhaust end; 312. Second filter port; 321. Slider; 322. Drive mechanism; 2211. Transition surface. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1-7 As shown, a vacuum structure for a steam oven is installed on the oven body 1, including a vacuum device 2 and a steam exhaust device 3. The oven body 1 has a receiving cavity, and the receiving cavity has an air outlet 11 and a steam outlet 12 respectively connected to the vacuum device 2 and the steam exhaust device 3.

[0029] In this embodiment, a heating tube 14 is provided at the top of the accommodating cavity. The heating tube 14 is meandering and has an S-shape. Multiple hanging brackets 15 are also provided on the heating tube 14. One end of each hanging bracket 15 is fixed to the top of the accommodating cavity, and the other end is connected to the hanging bracket 15. The meandering heating tube 14 can more effectively cover the top area of ​​the accommodating cavity, allowing the heat emitted by the heating tube 14 to be more widely distributed to all corners of the accommodating cavity, thereby reducing temperature dead zones and improving the heat uniformity within the accommodating cavity. Because the heating tube 14 is meandering, there is a significant amount of unsupported portion. Fixing the heating tube 14 only from both ends results in poor stability and a risk of it falling off. The hanging brackets 15 reinforce the heating tube 14, improving its installation reliability and reducing the risk of it falling off.

[0030] In this embodiment, a plurality of temperature sensors 13 are also provided in the accommodating cavity, and the plurality of temperature sensors 13 are evenly distributed in the accommodating cavity. The temperature sensors 13 are used to detect the temperature in the accommodating cavity. Since the vacuum sous-vide cooking method has a requirement for the upper limit of the cooking temperature, the temperature sensors 13 are used to prevent the temperature of the accommodating cavity from exceeding the upper limit of the temperature, thereby improving the reliability of the steam oven.

[0031] The vacuum device 2 includes a vacuum pump 21, the air intake 211 of which is connected to the air outlet 11, and the exhaust port 212 of which is connected to the outside. The vacuum pump 21 is used to extract air from the accommodating cavity, so that the accommodating cavity is in a vacuum state, providing a vacuum environment for cooking food using the vacuum low-temperature cooking method, and enabling the steam oven to meet the basic conditions of the vacuum low-temperature cooking method.

[0032] In this embodiment, the vacuum pumping device 2 further includes a mounting base 22 fixed to the housing 1. The mounting base 22 includes multiple snap-fit ​​portions 221 adapted to the vacuum pump 21, which snap the vacuum pump 21 onto the mounting base 22. The snap-fit ​​portions 221 eliminate the need for additional fasteners to secure the vacuum pump 21, greatly simplifying the installation structure and enabling quick assembly and disassembly of the vacuum pump 21, thus improving the convenience of installation and maintenance.

[0033] Specifically, one end of the latching portion 221 has a transition surface 2211 that gradually increases in size from the outside to the inside. The latching portion 221 is symmetrically arranged on both sides of the mounting base 22, so that the transition surface 2211 forms a flared opening that gradually increases in size from the inside to the outside. The flared opening is used to guide and transition the vacuum pump 21 during installation. Since the latching portion 221 is used to fix the vacuum pump 21, it will inevitably create resistance to the vacuum pump 21 during installation. The flared opening is used to guide and transition the vacuum pump 21 during installation, making it easier to install the vacuum pump 21 on the mounting base 22 and improving the installation convenience of the vacuum pump 21.

[0034] The steam exhaust device 3 includes an exhaust pipe 31, one end of which is connected to the steam outlet 12, and the other end is connected to the outside. A control module 32 is also installed inside the exhaust pipe 31. The control module 32 includes a movable slider 321 with two movable positions, which reciprocate to open or close the exhaust pipe 31. The steam exhaust device 3 is used to exhaust steam during regular steaming in the steam oven, preventing the accommodating cavity from being under high pressure for extended periods, thus extending its service life. However, when the accommodating cavity is evacuated by the vacuum device 2, it needs to be sealed. When the slider 321 closes the exhaust pipe 31, it isolates the accommodating cavity from the outside, thereby sealing the cavity and improving the vacuuming effect of the vacuum device.

[0035] In this embodiment, the control module 32 further includes a drive mechanism 322. The slider 321 is mounted on the output end of the drive mechanism 322 and reciprocates along the radial direction of the exhaust pipe 31 under the drive of the drive mechanism 322. By driving the slider 321 to reciprocate through the drive mechanism 322, the slider 321 automatically opens or closes the exhaust pipe 31, thereby enabling precise and rapid opening or closing of the exhaust pipe 31 and improving the response speed of the slider 321. At the same time, it also reduces the need for manual intervention and further improves the convenience of the steam oven.

[0036] Specifically, the drive mechanism 322 includes an electromagnet, a drive rod, and an elastic unit. When the drive mechanism 322 is energized, the electromagnet drives the drive rod to extend or retract. When the drive mechanism 322 is de-energized, the elastic unit drives the drive rod to reset. This simplifies the control logic of the drive mechanism 322, as the extension and retraction of the drive rod can be achieved simply by energizing or de-energizing the electromagnet. This avoids complex control signals and additional logic circuits, simplifies the control process of the drive mechanism 322, and facilitates later maintenance.

[0037] In this embodiment, multiple steam outlets 12 are provided, and the multiple steam outlets 12 are arranged side by side to form a first filter port. The first filter port is used to prevent dirt from entering the exhaust pipe 31 from the receiving cavity, so as to keep the exhaust pipe 31 unobstructed and reduce the risk of blockage of the exhaust pipe 31.

[0038] In this embodiment, the end of the exhaust pipe 31 that connects to the outside is flat, forming an exhaust end 311. The exhaust end 311 contains a plurality of parallel-arranged second filter ports 312. The flat exhaust end 311 allows the exhaust pipe 31 to fit more closely to the housing 1, reducing the volume of the exhaust pipe 31. The second filter ports 312 prevent external dirt from entering the exhaust pipe 31, further reducing the risk of blockage.

[0039] In this embodiment, the vacuuming device 2 and the steam exhaust device 3 are respectively located on both sides of the housing 1. By separating the vacuuming device 2 and the steam exhaust device 3, the space of the housing 1 can be better utilized, making the structure inside the housing 1 more compact. This prevents excessive structures from being piled up on one side of the housing 1, which would lead to space constraints inside the housing 1, and improves the space utilization rate inside the housing 1.

[0040] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A vacuum structure for a steam oven, installed on the oven body, comprising a vacuum device and a steam exhaust device, wherein the oven body has a receiving cavity, and the receiving cavity has an air outlet and a steam outlet respectively connected to the vacuum device and the steam exhaust device, characterized in that, The vacuum pumping device includes a vacuum pump, the vacuum pump's suction port is connected to the exhaust port, and the vacuum pump's exhaust port is connected to the outside. The steam exhaust device includes a steam exhaust pipe, one end of which is connected to the steam outlet and the other end is connected to the outside. The steam exhaust pipe is also equipped with a control module, which includes a movable slider. The slider has at least two movable positions and reciprocates in the movable positions to open or close the steam exhaust pipe.

2. The vacuum structure of a steam oven according to claim 1, characterized in that, The control module also includes a drive mechanism. The slider is installed at the output end of the drive mechanism and reciprocates along the radial direction of the exhaust pipe under the drive of the drive mechanism.

3. The vacuum structure of a steam oven according to claim 2, characterized in that, The driving mechanism includes an electromagnet, a driving rod, and an elastic unit. When the driving mechanism is energized, the electromagnet drives the driving rod to extend or retract. When the driving mechanism is de-energized, the elastic unit drives the driving rod to reset.

4. The vacuum structure of a steam oven according to claim 1, characterized in that, The vacuum pumping device further includes a mounting base fixed to the housing. The mounting base includes multiple snap-fit ​​parts adapted to the vacuum pump, which snap the vacuum pump onto the mounting base.

5. The vacuum structure of a steam oven according to claim 4, characterized in that, One end of the snap-fit ​​part is provided with a transition surface that gradually increases from the outside to the inside. The snap-fit ​​part is symmetrically arranged on both sides of the mounting base, so that the transition surface forms a flared opening that gradually increases from the inside to the outside.

6. The vacuum structure of a steam oven according to claim 1, characterized in that, The steam outlet is provided in multiple ways, and the multiple steam outlets are arranged in parallel or staggered positions to form the first filter port.

7. The vacuum structure of a steam oven according to claim 1, characterized in that, The end of the exhaust pipe that connects to the outside is flat and forms an exhaust end. The exhaust end is provided with multiple second filter ports arranged in parallel.

8. The vacuum structure of a steam oven according to claim 1, characterized in that, The top of the accommodating cavity is provided with a heating tube, which is meandering and in an S-shape or similar shape; the heating tube is also provided with multiple hanging brackets, one end of which is fixed to the top of the accommodating cavity and the other end is connected to the hanging bracket.

9. The vacuum structure of a steam oven according to claim 1, characterized in that, The cavity is also equipped with multiple temperature sensors, which are evenly distributed within the cavity.

10. The vacuum structure of a steam oven according to claim 1, characterized in that, The vacuum pumping device and the steam exhaust device are respectively located on both sides of the box.

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