Steam cooking appliance

Abstract

This application relates to the field of cooking appliance technology, and provides a steam cooking appliance, including a base, a steam baffle, and a steaming tray. The base has a main water tank and an auxiliary water tank. The steam baffle is located at the main water tank and has a downward-extending annular baffle that divides the main water tank into an inner heating chamber and an outer water storage chamber. The base is equipped with a heating element for heating the water in the heating chamber. The auxiliary water tank is located outside the main water tank and communicates with the water storage chamber. The steaming tray is placed above the base and the steam baffle. A water seal groove is provided on the inner bottom wall of the main water tank. The lower end of the annular baffle is inserted into the water seal groove, and a communication structure is provided between the lower end of the annular baffle and the bottom wall of the water seal groove, or at the part of the annular baffle inserted into the water seal groove, to allow water in the water storage chamber to flow into the heating chamber. This prevents steam generated in the heating chamber from overflowing outside the heating chamber and causing heat loss, and prevents hot steam from overflowing through the auxiliary water tank and causing the risk of scalding.

Description

Technical Field

[0001] This application relates to the field of kitchen appliance technology, and more particularly to a steam cooking appliance. Background Technology

[0002] With the popularization of healthy eating concepts and the improvement of living standards, steaming and boiling have gradually become the mainstream cooking methods in many households, and electric steamers have gradually become an indispensable kitchen appliance in modern homes. Traditional electric steamers typically include a water tank, a drip tray, and a steaming basket. The drip tray is placed on the water tank, and the steaming basket is placed on the drip tray. To improve heating efficiency, the water tank has upward-extending ring ribs, and the drip tray has downward-extending ring ribs. The ring ribs on the drip tray and the ring ribs in the water tank are staggered to separate the water tank into an inner heating chamber and an outer non-heating chamber. The heating element heats the water in the heating chamber to quickly generate steam, which is then used to steam the food in the steaming basket.

[0003] To facilitate user monitoring of the water level in the main water tank and prevent dry burning of the electric steamer, a visual auxiliary water tank is proposed in related technologies. This auxiliary tank is connected to the main water tank via a water pipe, allowing users to monitor the water level in real time by adding water to the auxiliary tank, thus preventing dry burning. However, when the water level in the main water tank drops below a certain point, insufficient to cover the lower end of the annular rib of the drip tray, steam generated in the heating chamber inevitably overflows in large quantities through the gap between the lower end of the annular rib and the water surface, causing heat loss. Furthermore, the steam flows back into the auxiliary water tank, posing a risk of scalding.

[0004] The existing solution is usually to add a water seal structure at the inlet of the main water tank to prevent hot steam from flowing back into the auxiliary water tank. However, this solution cannot solve the problem of heat loss caused by steam overflowing from the heating chamber of the main water tank. It also causes the process of water entering the main water tank from the auxiliary water tank to be blocked, resulting in a new problem of low water filling efficiency for users. Utility Model Content

[0005] To address the issues of heat loss caused by steam overflow from the heating chamber and the risk of scalding from hot steam flowing back into the auxiliary water tank, this application provides a steam cooking appliance.

[0006] This application provides a steam cooking appliance, including a base, a steam baffle, and a steaming tray. The base has a main water tank and a secondary water tank. The steam baffle is located at the main water tank and has a downward-extending annular baffle. The annular baffle divides the main water tank into an inner heating chamber and an outer water storage chamber. The base is provided with a heating element for heating the water in the heating chamber. The secondary water tank is located outside the main water tank and communicates with the water storage chamber to replenish water to the water storage chamber. The steaming tray is placed above the base and the steam baffle. The inner bottom wall of the main water tank is provided with a water seal groove. The lower end of the annular baffle is inserted into the water seal groove, and the lower end of the annular baffle and the bottom wall of the water seal groove, or the part of the annular baffle inserted into the water seal groove, are provided with a communication structure to allow water in the water storage chamber to flow into the heating chamber.

[0007] In some embodiments, the lower end of the annular baffle is provided higher than the bottom wall of the water seal groove, and the communication structure is a communication gap formed between the lower end of the annular baffle and the bottom wall of the water seal groove.

[0008] Alternatively, the connecting structure is a connecting hole, which is located at the part where the annular baffle is inserted into the water seal groove.

[0009] In some embodiments, the inner bottom wall of the main water tank is provided with a hollow hole located in the inner perimeter area of ​​the annular baffle, the heating element is a heating plate, the heating plate is installed and exposed in the hollow hole, and the surface of the heating plate facing the heating cavity is lower than the inner bottom wall surface of the main water tank.

[0010] In some embodiments, along the edge of the main water tank toward the heating chamber, the inner bottom wall of the main water tank is flat or gradually slopes downward, and the water seal groove is formed by a downward indentation of the inner bottom wall of the main water tank.

[0011] In some embodiments, the vapor barrier is provided with an overlapping edge at its periphery, the vapor barrier is supported at the periphery of the main water tank by the overlapping edge, and the annular baffle is provided on the bottom surface of the vapor barrier.

[0012] In some embodiments, a support portion is provided on the inner bottom wall of the main water tank to support the vapor barrier.

[0013] In some embodiments, the support portion is disposed within the water seal groove, and the support portion is provided with a limiting slot, the lower end of the annular baffle is supported on the support portion and is locked at the limiting slot.

[0014] In some embodiments, the vapor barrier is a drip tray, and the drip tray has the annular baffle rib on its lower bottom surface;

[0015] Alternatively, the steam shield is a steam shield placed inside the main water tank, the steam shield including a top wall and side walls that are connected to the periphery of the top wall and extend downward, the side walls forming the annular baffle.

[0016] In some embodiments, the inner bottom wall of the main water tank is provided with an upwardly extending annular rib, the annular rib and the annular baffle rib cooperate to form at least two layers of annular ribs surrounding the heating cavity, and the annular rib is provided with a connecting groove for water to flow through.

[0017] In some embodiments, there are two annular reinforcing bars, namely an inner annular reinforcing bar and an outer annular reinforcing bar, the outer annular reinforcing bar is disposed around the inner annular reinforcing bar, and the annular retaining bar is located between the inner annular reinforcing bar and the outer annular reinforcing bar.

[0018] Alternatively, the number of the annular reinforcing bars is one, and the annular reinforcing bar is located inside or outside the annular retaining bars.

[0019] The technical solution provided in this application has at least the following advantages compared with the prior art:

[0020] 1. The steam cooking appliance provided in this application, by installing a steam baffle at the main water tank of the base, uses the annular baffle of the steam baffle to divide the main water tank into an inner heating chamber and an outer water storage chamber. This allows the heating element to heat the water in the inner heating chamber to quickly generate steam, increasing the steam generation speed and shortening the steaming time for food in the steamer. The auxiliary water tank is located outside the main water tank and communicates with its water storage chamber, allowing the user to replenish water to the main water tank's storage chamber in a timely manner, preventing the steam cooking appliance from dry-burning. Simultaneously, a water seal groove is provided on the inner bottom wall of the main water tank, and the lower end of the annular baffle of the steam baffle is inserted into the water seal groove. Thus, as long as there is water in the water seal groove, even if the water in the main water tank... When the water level is low enough, a water seal is formed between the lower end of the annular baffle and the water in the water seal groove. This effectively prevents steam generated in the heating chamber from overflowing out of the heating chamber and causing heat loss, as well as prevents hot steam from overflowing through the auxiliary water tank and causing scalding. Furthermore, a connecting structure is provided between the lower end of the annular baffle and the bottom wall of the water seal groove, or at the part where the annular baffle is inserted into the water seal groove, so that water in the water storage chamber can flow into the heating chamber. That is, water in the water storage chamber can flow into the heating chamber through the connecting structure, so that while the water in the heating chamber is constantly evaporating to generate steam, water in the water storage chamber is constantly replenished into the heating chamber, ensuring the normal operation of the cooking process and preventing dry burning in the heating chamber.

[0021] 2. By providing perforations in the inner bottom wall of the main water tank, the heating plate is installed and exposed through these perforations, allowing direct contact between the heating plate and the water in the main water tank. This enables rapid heating of the water in the heating chamber of the main water tank. Furthermore, the surface of the heating plate facing the heating chamber is lower than the inner bottom wall of the main water tank. Thus, during steam cooking, the water level in the main water tank gradually decreases. When the water level drops to a certain point, the water will pool in the heating chamber of the main water tank, allowing for continued heating. The heating plate heats the water in the heating chamber to generate steam. Furthermore, because the water seal groove contains water, even if the water level in the main water tank's storage chamber and / or the heating chamber is low to a certain extent, a water seal structure can be formed between the lower end of the annular baffle and the water in the water seal groove. This ensures that the steam generated in the heating chamber remains within the heating chamber and flows to the steam drawer through the steam hood, effectively preventing the steam generated in the heating chamber from overflowing outside the heating chamber and causing heat loss, as well as effectively preventing the risk of scalding caused by hot steam overflowing through the auxiliary water tank.

[0022] 3. By setting the inner bottom wall of the main water tank as a flat surface or a gradually sloping surface, the water in the water storage chamber of the main water tank can flow smoothly along the inner bottom wall of the main water tank into the heating chamber; by setting a water seal groove formed by the downward indentation of the inner bottom wall of the main water tank, the height of the water seal groove is relatively low. When water is injected into the main water tank, the water will flow into the water seal groove, and when the water in the main water tank is low, water will still be stored in the water seal groove, thereby ensuring that a water seal structure is formed between the lower end of the annular baffle and the water stored in the water seal groove.

[0023] 4. By providing overlapping edges at the periphery of the steam baffle, the steam baffle is supported on the periphery of the main water tank via these overlapping edges. This allows the annular baffle on the steam baffle to divide the main water tank into an inner heating chamber and an outer water storage chamber. Alternatively, by providing a support portion on the inner bottom wall of the main water tank, the steam baffle is supported by this support portion. This allows the annular baffle on the steam baffle to divide the main water tank into an inner heating chamber and an outer water storage chamber. The support portion is located within the water seal groove and has a limiting slot. The lower end of the annular baffle rests on the support portion and engages with the limiting slot, thus using the annular baffle as a support for the steam baffle, supporting it on the inner bottom wall of the main water tank. The limiting slot can be positioned higher than the bottom wall of the water seal groove, creating a communication gap between the lower end of the annular baffle and the bottom wall of the water seal groove, allowing water from the storage chamber to flow into the heating chamber.

[0024] 5. By providing an upwardly extending annular rib on the inner bottom wall of the main water tank, the annular rib cooperates with the annular baffle of the steam hood to form at least two layers of annular ribs surrounding the heating chamber, so as to better lock the steam generated in the heating chamber and allow the steam to flow better to the steamer; and by separating the inner heating chamber and the outer water storage chamber by the annular rib, the water in the water storage chamber flows into the heating chamber through the connecting groove opened on the annular rib, avoiding the water from convection too quickly between the water storage chamber and the heating chamber, which would affect the steam generation rate in the heating chamber. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a cross-sectional view of a steam cooking appliance according to an embodiment of this application;

[0028] Figure 2 for Figure 1 A cross-sectional view of the steam cooking appliance shown from the front view.

[0029] Figure 3 for Figure 2 A partially enlarged structural diagram of section A in the middle;

[0030] Figure 4 This is a cross-sectional view of a steam cooking appliance according to another embodiment of this application;

[0031] Figure 5 This is a cross-sectional view of the steam cooking appliance described in another embodiment of this application;

[0032] Figure 6 for Figure 5 A schematic diagram of the base of the steam cooking appliance shown.

[0033] Figure 7 This is a cross-sectional view of the steam cooking appliance described in another embodiment of this application.

[0034] The components include: 1. Base; 11. Main water tank; 110. Water inlet; 111. Heating chamber; 112. Water storage chamber; 113. Water seal groove; 114. Hollow hole; 115. Support part; 1151. Limiting slot; 116. Annular surrounding rib; 1161. Connecting groove; 117. Inner annular surrounding rib; 118. Outer annular rib; 12. Auxiliary water tank; 120. Connecting pipe; 13. Heating element; 14. Sealing ring.

[0035] 2. Vacuum barrier; 2a. Juice tray; 2b. Steam hood; 21. Annular baffle; 211. Connecting structure; 22. Overlapping edge;

[0036] 3. Steamer. Detailed Implementation

[0037] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0038] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0039] Reference Figures 1 to 7 As shown, some embodiments of this application provide a steam cooking appliance, including a base 1, a steam baffle 2, and a steaming tray 3. The base 1 has a main water tank 11 and an auxiliary water tank 12. The steam baffle 2 is placed at the main water tank 11 and has a downwardly extending annular baffle 21. The annular baffle 21 divides the main water tank 11 into an inner heating chamber 111 and an outer water storage chamber 112. The base 1 is provided with a heating element 13 for heating the water in the heating chamber 111. The auxiliary water tank 12 is located outside the main water tank 11 and communicates with the water storage chamber 112 to replenish water to the water storage chamber 112. The steaming tray 3 is placed above the base 1 and the steam baffle 2.

[0040] The main water tank 11 has a water seal groove 113 on its inner bottom wall. The lower end of the annular baffle 21 is inserted into the water seal groove 113. The lower end of the annular baffle 21 and the bottom wall of the water seal groove 113, or the part of the annular baffle 21 inserted into the water seal groove 113, are provided with a communication structure 211 so that the water in the water storage chamber 112 can flow into the heating chamber 111.

[0041] The steam cooking appliance provided in this application embodiment has a steam shield 2 installed at the main water tank 11 of the base 1. The steam shield has a downward-extending annular baffle 21, which divides the main water tank 11 into an inner heating chamber 111 and an outer water storage chamber 112. The heating element 13 heats the water in the inner heating chamber 111 to quickly generate steam, which improves the steam generation speed. The steam flows through the steam shield 2 to the steaming tray 3 placed above the base 1 and the steam shield 2, so as to steam the food in the steaming tray 3, which helps to shorten the steaming time. The auxiliary water tank 12 is located outside the main water tank 11 and is connected to the water storage chamber 112 of the main water tank 11, so that the user can replenish water to the water storage chamber 112 of the main water tank 11 in a timely manner through the auxiliary water tank 12, preventing the steam cooking appliance from dry burning.

[0042] Meanwhile, a water seal groove 113 is provided on the inner bottom wall of the main water tank 11, and the lower end of the annular baffle 21 of the steam shield 2 is inserted into the water seal groove 113. In this way, as long as there is water in the water seal groove 113, even if the water level in the main water tank 11 is low to a certain extent, it can ensure that the lower end of the annular baffle 21 and the water in the water seal groove 113 form a water seal structure, thereby effectively preventing the steam generated in the heating chamber 111 from overflowing outside the heating chamber 111 and causing heat loss, and effectively preventing the hot steam from overflowing through the auxiliary water tank 12 and causing the risk of scalding. Furthermore, a connecting structure 211 is provided between the lower end of the annular baffle 21 and the bottom wall of the water seal groove 113, or at the part where the annular baffle 21 is inserted into the water seal groove 113, so that the water in the water storage chamber 112 can flow into the heating chamber 111. That is, the water in the water storage chamber 112 can flow into the heating chamber 111 through the connecting structure 211, so that while the water in the heating chamber 111 is constantly evaporating to generate steam, the water in the water storage chamber 112 is constantly replenished into the heating chamber 111, ensuring the normal progress of the cooking process and preventing the heating chamber 111 from dry burning.

[0043] It should be understood that, in order to ensure that water can still be stored in the water seal groove 113 even when the water level in the main water tank 11 is low, the water seal groove 113 can be formed by a downward indentation from the inner bottom wall of the main water tank 11. This results in a lower height at the water seal groove 113. When water is added to the main water tank 11, the water flows into and fills the water seal groove 113. As the cooking process progresses, the water level in the main water tank 11 gradually decreases. Even when there is little water in the main water tank 11, water still remains in the water seal groove 113, thus ensuring a continuous water seal between the lower end of the annular baffle 21 and the water stored in the water seal groove 113. Specifically, the water seal groove 113 is an annular groove that matches the shape of the annular baffle 21.

[0044] To achieve communication between the auxiliary water tank 12 and the main water tank 11, exemplarily, referring to... Figure 1As shown, a connecting pipe 120 is provided at the lower part of the side of the auxiliary water tank 12, and a water inlet 110 is provided at the lower part of the side of the main water tank 11. The connecting pipe 120 of the auxiliary water tank 12 is connected to the water inlet 110 of the main water tank 11, so that the auxiliary water tank 12 and the main water tank 11 are connected, so that water can be added to the main water tank 11 by adding water to the auxiliary water tank 12.

[0045] It should be noted that traditional electric steamers with an auxiliary water tank typically employ a water-sealing structure at the main water tank's inlet to prevent hot steam generated in the main water tank from flowing back into the auxiliary water tank and causing scalding. Specifically, a water-sealing groove is provided on the inner bottom wall of the main water tank near the inlet. A connecting pipe at the main water tank's inlet connects to the auxiliary water tank and extends into the main water tank. The lower end of the connecting pipe is inserted into the water-sealing groove to form a water-sealing structure, preventing hot steam generated in the main water tank from flowing back into the auxiliary water tank. However, this solution cannot solve the problem of heat loss caused by steam overflowing from the heating chamber of the main water tank. That is, when the water level in the main water tank is low enough to not cover the lower end of the annular rib of the drip tray, the steam generated in the heating chamber of the main water tank will still overflow out of the heating chamber in large quantities through the gap between the lower end of the annular rib of the drip tray and the water surface, causing heat loss. Furthermore, due to the existence of the water seal structure, the process of water from the auxiliary water tank entering the main water tank is obstructed, bringing a new problem of low water filling efficiency for users.

[0046] The steam cooking appliance provided in this application embodiment has a water seal groove 113 on the inner bottom wall of the main water tank 11. The lower end of the annular baffle 21 of the steam barrier 2 is inserted into the water seal groove 113, thereby forming a water seal structure between the lower end of the annular baffle 21 and the water stored in the water seal groove 113. This effectively prevents the steam generated in the heating chamber 111 from overflowing outside the heating chamber 111 and causing heat loss, and effectively prevents hot steam from overflowing through the auxiliary water tank 12 and causing the risk of scalding. Furthermore, since the water seal structure is far from the main water tank 111, the steam seal structure is designed to prevent the steam generated in the heating chamber 111 from overflowing outside the heating chamber 111 and causing heat loss. The water inlet 110 of the water tank 11 is designed so that the water from the auxiliary water tank 12 can smoothly enter the main water tank 11 through the water inlet 110 of the main water tank 11. This makes the water filling efficiency high and reduces the risk of water overflowing into the auxiliary water tank 12 due to slow flow rate, thus improving the user experience. In addition, due to the existence of the water seal structure, the convection speed of water between the water storage chamber 112 and the heating chamber 111 of the main water tank 11 is slowed down. Therefore, it can increase the steam generation speed in the heating chamber 111 to a certain extent and improve cooking efficiency.

[0047] In some embodiments, refer to Figures 1 to 3As shown, the lower end of the annular baffle 21 is positioned higher than the bottom wall of the water seal groove 113, and the connecting structure 211 is a connecting gap formed between the lower end of the annular baffle 21 and the bottom wall of the water seal groove 113. With this configuration, as long as the water level in the water seal groove 113 is higher than the lower end face of the annular baffle 21, a water seal structure can be ensured between the lower end of the annular baffle 21 and the water in the water seal groove 113. That is, even when there is little water in the water seal groove 113, the water seal effect can still be ensured. Furthermore, there is no need to additionally open a connecting hole at the location where the annular baffle 21 is inserted into the water seal groove 113, simplifying the structure and making processing easier.

[0048] Of course, in specific implementations, the connecting structure 211 can also be a connecting hole, which is located at the part where the annular baffle 21 is inserted into the water seal groove 113. With this configuration, when the water in the water seal groove 113 is above the connecting hole on the annular baffle 21, the water seal effect can still be ensured.

[0049] It should be noted that, in order for the water in the water storage chamber 112 to flow smoothly into the heating chamber 111 through the connecting structure 211, the width of the water seal groove 113 needs to be greater than the thickness of the annular baffle 21, and gaps are formed between the inner and outer walls of the annular baffle 21 and the two opposite groove walls of the water seal groove 113. These gaps are connected to the connecting structure 211, so that the water in the water storage tank flows into the heating chamber 111 sequentially through the gap on the outside of the annular baffle 21, the connecting structure 211, and the gap on the inside of the annular baffle 21.

[0050] In some embodiments, refer to Figure 2 and Figure 3 As shown, the inner bottom wall of the main water tank 11 has a perforated hole 114 located in the inner perimeter area of ​​the annular baffle 21. The heating element 13 is a heating plate, which is installed and exposed in the perforated hole 114, and the surface of the heating plate facing the heating cavity 111 is lower than the inner bottom wall surface of the main water tank 11. To ensure a sealing effect and prevent water leakage, a sealing ring 14 can be provided around the heating plate. The sealing ring 14 abuts against the area of ​​the outer bottom wall surface of the main water tank 11 around the perforated hole 114 to achieve a seal.

[0051] With this configuration, a perforated hole 114 is provided on the inner bottom wall of the main water tank 11, and the heating plate is installed and exposed in the perforated hole 114, so that the heating plate is in direct contact with the water in the main water tank 11, thereby achieving the purpose of rapidly heating the water in the heating chamber 111 of the main water tank 11 using the heating plate; and the surface of the heating plate facing the heating chamber 111 is lower than the inner bottom wall of the main water tank 11. Thus, when the steam cooking appliance is in operation, the water level in the main water tank 11 gradually decreases. When the water in the main water tank 11 is low enough, the water in the main water tank 11 will gather in the heating chamber 111 of the main water tank 11, and the heating plate can still be used to heat the water in the heating chamber 111 to generate steam.

[0052] It should be noted that, since the water seal groove 113 is located on the inner bottom wall of the main water tank 11, and the surface of the heating plate facing the heating chamber 111 is lower than the inner bottom wall of the main water tank 11, the top surface of the water seal groove 113 is higher than the lowest plane of the heating plate. The depth of the water seal groove 113 is not specifically limited; the bottom wall of the water seal groove 113 can be higher than, lower than, or flush with the lowest plane of the heating plate. Because the water seal trough 113 contains water, even if the water level in the main water tank 11's water storage chamber 112 and / or heating chamber 111 drops to a certain level, it can still ensure that a water seal structure is formed between the lower end of the annular baffle 21 and the water in the water seal trough 113. This allows the steam generated in the heating chamber 111 to remain inside the heating chamber 111 and flow to the steam tray 3 through the steam hood 2, effectively preventing the steam generated in the heating chamber 111 from overflowing outside the heating chamber 111 and causing heat loss, as well as effectively preventing the risk of scalding caused by hot steam overflowing through the auxiliary water tank 12.

[0053] In some embodiments, refer to Figure 6 As shown, along the edge of the main water tank 11 toward the heating chamber 111, the inner bottom wall of the main water tank 11 is either flat or gradually slopes downward. This allows the water in the water storage chamber 112 of the main water tank 11 to flow smoothly along the inner bottom wall of the main water tank 11 into the heating chamber 111.

[0054] Continue to refer to Figure 6 As shown, the water seal groove 113 is formed by a downward indentation of the inner bottom wall of the main water tank 11. This results in a lower height at the water seal groove 113. When water is added to the main water tank 11, the water flows into the water seal groove 113. Even when the water in the main water tank 11 is low, water still remains in the water seal groove 113, thus ensuring a water seal between the lower end of the annular baffle 21 and the water in the water seal groove 113.

[0055] In some embodiments, refer to Figures 1 to 4As shown, the vapor barrier 2 has an overlapping edge 22 at its periphery. The vapor barrier 2 is supported on the periphery of the main water tank 11 by the overlapping edge 22. The bottom surface of the vapor barrier 2 is provided with an annular baffle 21. This arrangement allows the vapor barrier 2 to be supported on the periphery of the main water tank 11 by the overlapping edge 22, thereby using the annular baffle 21 on the vapor barrier 2 to divide the main water tank 11 into an inner heating chamber 111 and an outer water storage chamber 112.

[0056] For example, refer to Figure 2 and Figure 4 As shown, the steam shield 2 can be a drip tray 2a, with an overlapping edge 22 at the periphery of the drip tray 2a. The drip tray 2a is supported at the periphery of the main water tank 11 by the overlapping edge 22. The steamer 3 is located above the drip tray 2a so that the drip tray 2a can be used to collect the liquid flowing down from the steamer 3. The bottom surface of the drip tray 2a is provided with an annular baffle 21, which separates the main water tank 11 into an inner heating chamber 111 and an outer water storage chamber 112. The heating element 13 heats the water in the heating chamber 111 to quickly generate steam. In order to allow the generated steam to flow to the steamer 3, the area on the upper surface of the drip tray 2a corresponding to the annular baffle 21 protrudes upward, and a steam hole is provided on the protrusion for steam to pass through. The steam generated in the heating chamber 111 flows to the steamer 3 through the steam hole. The lower end of the annular baffle 21 is inserted into the water seal groove 113 of the main water tank 11 to form a water seal structure between the lower end of the annular baffle 21 and the water stored in the water seal groove 113 of the main water tank 11.

[0057] In other embodiments, reference is made to Figures 5 to 7 As shown, a support portion 115 is provided on the inner bottom wall of the main water tank 11 to support the vapor barrier 2. This arrangement enables the vapor barrier 2 to be supported by the support portion 115, thereby using the annular baffle 21 on the vapor barrier 2 to divide the main water tank 11 into an inner heating chamber 111 and an outer water storage chamber 112.

[0058] Continue to refer to Figures 5 to 7 As shown, the support part 115 is located inside the water seal groove 113, and the support part 115 is provided with a limiting slot 1151. The lower end of the annular baffle 21 is supported on the support part 115 and is locked at the limiting slot 1151. This arrangement is to use the annular baffle 21 as the support part 115 of the vapor barrier 2, so as to support the vapor barrier 2 on the inner bottom wall of the main water tank 11.

[0059] Specifically, multiple support portions 115 are provided at intervals along the circumference inside the water seal groove 113. Each support portion 115 is provided with a limiting slot 1151. The limiting slot 1151 can be an arc-shaped slot. The limiting slots 1151 on multiple support portions 115 can be located on the same circumference. This arrangement allows the lower end of the annular baffle 21 to be locked at multiple limiting slots 1151, so that multiple support portions 115 can jointly support the vapor barrier 2.

[0060] In specific implementation, the limiting slot 1151 can be set higher than the bottom wall of the water seal groove 113, thereby forming a communication gap between the lower end of the annular baffle 21 and the bottom wall of the water seal groove 113, allowing water in the water storage chamber 112 to flow into the heating chamber 111. This arrangement achieves the supporting function of the vapor barrier 2 without affecting the smooth flow of water in the water storage chamber 112 into the heating chamber 111 through the communication gap.

[0061] For example, refer to Figure 5 and Figure 6 As shown, the vapor barrier 2 can be a drip tray 2a. The bottom surface of the drip tray 2a is provided with an annular baffle 21. The water seal groove 113 is provided with a support part 115. The support part 115 is provided with a limiting slot 1151. The lower end of the annular baffle 21 is inserted into the water seal groove 113 and is locked at the limiting slot 1151, so that the support part 115 can be used to support the drip tray 2a and form a water seal structure between the lower end of the annular baffle 21 and the water stored in the water seal groove 113. Furthermore, the limiting slot 1151 is set higher than the bottom wall of the water seal groove 113, so that the lower end of the annular baffle 21 and the bottom wall of the water seal groove 113 form a communication gap, so that the water in the water storage chamber 112 can flow into the heating chamber 111.

[0062] For example, refer to Figure 7 As shown, the steam hood 2 can also be a steam hood 2b, which is placed inside the main water tank 11. The steam hood 2b includes a top wall and side walls that are connected to the periphery of the top wall and extend downwards, with the side walls forming annular baffles 21. Specifically, the steam hood 2 can be used as an independent component to cover the main water tank 11. This solution is particularly suitable when it is difficult to install annular baffles 21 on the drip tray 2a.

[0063] Specifically, a support part 115 is provided in the water seal trough 113, and a limiting slot 1151 is provided on the support part 115. The lower end of the annular baffle 21 is inserted into the water seal trough 113 and is locked at the limiting slot 1151, so that the support part 115 can support the steam hood 2b and form a water seal structure between the lower end of the annular baffle 21 and the water stored in the water seal trough 113. Furthermore, the limiting slot 1151 is set higher than the bottom wall of the water seal trough 113, so that a communication gap is formed between the lower end of the annular baffle 21 and the bottom wall of the water seal trough 113, so that the water in the water storage chamber 112 can flow into the heating chamber 111.

[0064] In a specific implementation, a hollow column extending upward can be provided on the top wall of the steam hood 2b. A drip tray 2a can be provided above the base 1 and the steam hood 2b. The periphery of the drip tray 2a can overlap the top periphery of the main water tank 11. An installation hole for the hollow column to pass through can be provided on the drip tray 2a. The steamer 3 is placed above the drip tray 2a, so that the steam generated in the heating chamber 111 can flow to the steamer 3 through the hollow column on the steam hood 2b.

[0065] Of course, in specific implementation, the support part 115 is not limited to being set inside the water seal groove 113. It can also be set on the inner bottom wall of the main water tank 11 in an area outside the water seal groove 113 as needed, as long as it can provide support for the vapor barrier 2.

[0066] In some embodiments, refer to Figures 1 to 7 As shown, the inner bottom wall of the main water tank 11 is provided with an upwardly extending annular rib 116. The annular rib 116 cooperates with the annular baffle 21 to form at least two layers of annular ribs surrounding the heating cavity 111. A connecting groove 1161 for water to flow through is provided on the annular rib 116.

[0067] Thus, by providing an upwardly extending annular rib 116 on the inner bottom wall of the main water tank 11, the annular rib 116 cooperates with the annular baffle 21 of the steam shield 2 to form at least two layers of annular ribs surrounding the heating chamber 111, so as to better lock the steam generated in the heating chamber 111 and allow the steam to flow better to the steamer 3; and by separating the inner heating chamber 111 and the outer water storage chamber 112 by the annular rib 116, the water in the water storage chamber 112 flows into the heating chamber 111 through the connecting groove 1161 opened on the annular rib 116, avoiding the water from convection too quickly between the water storage chamber 112 and the heating chamber 111, which would affect the steam generation rate in the heating chamber 111.

[0068] In some embodiments, refer to Figures 1 to 3As shown, there are two annular ribs 116: an inner annular rib 117 and an outer annular rib 118. The outer annular rib 118 is located around the inner annular rib 117, and the annular baffle rib 21 is located between the inner annular rib 117 and the outer annular rib 118. This arrangement forms an outer flow channel surrounding the heating cavity 111 between the outer annular rib 118 and the baffle rib 21, and an inner flow channel surrounding the heating cavity 111 between the baffle rib 21 and the inner annular rib 117. This causes the water in the water storage cavity 112 to first flow to the outer flow channel, then to the inner flow channel, and finally to the heating cavity 111. This slows down the convection of water between the water storage cavity 112 and the heating cavity 111, thereby increasing the steam generation rate in the heating cavity 111.

[0069] In specific implementation, both the outer annular rib 118 and the inner annular rib 117 are provided with connecting grooves 1161 for water flow. The connecting grooves 1161 on the outer annular rib 118 can be staggered from the connecting grooves 1161 on the inner annular rib 117. Specifically, the connecting grooves 1161 on the outer annular rib 118 and the connecting grooves 1161 on the inner annular rib 117 can be located on both sides of the heating chamber 111, so as to extend the flow path of water in the water storage chamber 112 to the heating chamber 111, thereby more effectively slowing down the convection of water between the water storage chamber 112 and the heating chamber 111, and thus increasing the steam generation rate in the heating chamber 111.

[0070] In other implementations, refer to Figures 4 to 7 As shown, there is one annular rib 116, which is located inside or outside the annular baffle 21. This arrangement allows the annular rib 116 to cooperate with the annular baffle 21 of the steam trap 2 to form two layers of annular ribs surrounding the heating chamber 111, so as to better lock the steam generated in the heating chamber 111 and allow the steam to flow better to the steamer 3; and the arrangement of the annular rib 116 can slow down the speed at which water in the water storage chamber 112 flows to the heating chamber 111, avoiding excessively rapid convection of water between the water storage chamber 112 and the heating chamber 111, which would affect the steam generation rate in the heating chamber 111.

[0071] Of course, in specific implementation, since the vapor barrier 2 is provided with a downwardly extending annular baffle 21, the main water tank 11 can be divided into an inner heating chamber 111 and an outer water storage chamber 112 by the annular baffle 21. Therefore, it is also feasible not to provide an annular baffle 116 on the inner bottom wall of the main water tank 11.

[0072] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0073] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A steam cooking appliance, comprising a base, a steam baffle, and a steaming tray, wherein the base has a main water tank and a secondary water tank, the steam baffle is positioned at the main water tank, the steam baffle has downwardly extending annular baffles that divide the main water tank into an inner heating chamber and an outer water storage chamber, the base is provided with a heating element for heating water in the heating chamber, the secondary water tank is located outside the main water tank and communicates with the water storage chamber to replenish water to the water storage chamber, and the steaming tray is positioned above the base and the steam baffle, characterized in that... The main water tank has a water seal groove on its inner bottom wall. The lower end of the annular baffle is inserted into the water seal groove, and the lower end of the annular baffle and the bottom wall of the water seal groove, or the part of the annular baffle inserted into the water seal groove, have a communication structure to allow water in the water storage chamber to flow into the heating chamber.

2. The steam cooking appliance according to claim 1, characterized in that, The lower end of the annular baffle is set higher than the bottom wall of the water seal groove, and the connecting structure is a connecting gap formed between the lower end of the annular baffle and the bottom wall of the water seal groove. Alternatively, the connecting structure is a connecting hole, which is located at the part where the annular baffle is inserted into the water seal groove.

3. The steam cooking appliance according to claim 1, characterized in that, The inner bottom wall of the main water tank is provided with a hollow hole located in the inner perimeter area of ​​the annular baffle. The heating element is a heating plate, which is installed and exposed in the hollow hole, and the surface of the heating plate facing the heating cavity is lower than the inner bottom wall of the main water tank.

4. The steam cooking appliance according to claim 1, characterized in that, Along the edge of the main water tank toward the heating chamber, the inner bottom wall of the main water tank is either flat or gradually slopes downward, and the water seal groove is formed by the downward indentation of the inner bottom wall of the main water tank.

5. The steam cooking appliance according to claim 1, characterized in that, The vapor barrier has an overlapping edge at its periphery, and the vapor barrier is supported at the periphery of the main water tank by the overlapping edge. The bottom surface of the vapor barrier is provided with the annular baffle.

6. The steam cooking appliance according to claim 1, characterized in that, The main water tank has a support on its inner bottom wall to support the vapor barrier.

7. The steam cooking appliance according to claim 6, characterized in that, The support is located inside the water seal groove, and the support is provided with a limiting slot. The lower end of the annular baffle is supported on the support and is locked at the limiting slot.

8. The steam cooking appliance according to claim 1, characterized in that, The vapor barrier is a drip tray, and the bottom surface of the drip tray is provided with the annular baffle. Alternatively, the steam shield is a steam shield placed inside the main water tank, the steam shield including a top wall and side walls that are connected to the periphery of the top wall and extend downward, the side walls forming the annular baffle.

9. The steam cooking appliance according to any one of claims 1 to 8, characterized in that, The inner bottom wall of the main water tank is provided with an upwardly extending annular rib. The annular rib cooperates with the annular baffle to form at least two layers of annular ribs surrounding the heating cavity. A connecting groove for water to flow through is provided on the annular rib.

10. The steam cooking appliance according to claim 9, characterized in that, The number of annular reinforcing bars is two, namely an inner annular reinforcing bar and an outer annular reinforcing bar. The outer annular reinforcing bar is located outside the inner annular reinforcing bar, and the annular retaining bar is located between the inner annular reinforcing bar and the outer annular reinforcing bar. Alternatively, the number of the annular reinforcing bars is one, and the annular reinforcing bar is located inside or outside the annular retaining bars.

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