Steam cooking appliance

Abstract

The application relates to the technical field of cooking electric appliances, and provides a steam cooking appliance, which comprises a water tank, a float valve assembly and a heating piece. The water tank is provided with a water storage cavity and a steam cavity. The bottom wall of the steam cavity is lower than the bottom wall of the water storage cavity. The float valve assembly is arranged on the water tank and is used for controlling the on-off between the water storage cavity and the steam cavity. The heating piece is arranged below the steam cavity. The float valve assembly comprises a blocking piece and a float. The blocking piece is provided with a water inlet. The float valve assembly and / or the water tank is provided with a flow guide channel which is communicated with the water storage cavity and the water inlet. The height of the water inlet is higher than the height of the flow guide channel. The blocking piece is provided with a water outlet which is communicated with the water inlet. The float is arranged below the blocking piece in a floating mode to open and close the water outlet. When the water outlet is opened, the water storage cavity and the steam cavity are communicated. The principle of oil floating on the surface of water is used to achieve the purpose of filtering oil, avoid the deposition of oil in the steam cavity to generate peculiar smell, and avoid the adhesion of oil on the float to cause the float to lose the ability of floating up.

Description

Technical Field

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

[0002] Existing steam cooking appliances, such as electric steamers, typically achieve rapid steam production in two ways: increasing the power of the heating element or reducing the amount of water to be heated. Since the power of the heating element cannot be increased indefinitely, the main focus has become finding ways to reduce the amount of water to be heated and to automatically replenish it.

[0003] For example, patent CN222459479U discloses a steam cooking appliance that produces steam quickly, including a water tank assembly, a heating element, and a water control valve. The water tank assembly has a steam chamber, a water supply chamber, and a mounting groove connecting the steam chamber and the water supply chamber. The heating element is located below the steam chamber, and the water control valve is mounted in the mounting groove. The water control valve includes a float valve structure for controlling the on / off state between the steam chamber and the water supply chamber. The up-and-down movement of the float valve structure controls the on / off state between the steam chamber and the water supply chamber to control the water level, so that the water level in the steam chamber is always kept at a low level. The heating efficiency of the heating element in the steam chamber is improved, thus achieving the purpose of producing steam quickly.

[0004] However, grease and other substances produced during the use of steam cooking appliances can easily fall into the water storage chamber and flow into the steam chamber through the water control valve along with the water in the storage chamber. This causes dirt to form inside the water control valve and the steam chamber, producing an odor. The dirt formed inside the water control valve and the steam chamber is difficult to clean, affecting the user experience. Furthermore, grease can increase the stickiness of the float surface or the side wall of the float chamber, causing the float to stick and lose its ability to float, thus causing the water control valve to malfunction. Utility Model Content

[0005] In order to solve the problems of grease and other substances generated during the use of steam cooking appliances flowing into the steam chamber through the water control valve, causing dirt to form inside the water control valve and the steam chamber and producing odors, as well as the problem of increased oil stains causing the float to stick and lose its ability to float, this application provides a steam cooking appliance.

[0006] This application provides a steam cooking appliance, including a water tank, a float valve assembly, and a heating element. The water tank has a water storage chamber and a steam chamber. The bottom wall of the steam chamber is lower than the bottom wall of the water storage chamber. The float valve assembly is disposed on the water tank and is used to control the connection and disconnection between the water storage chamber and the steam chamber. The heating element is disposed below the steam chamber.

[0007] The float valve assembly includes a baffle and a float. The baffle is provided with a water inlet. The float valve assembly and / or the water tank are provided with a flow channel connecting the water storage chamber and the water inlet. The height of the water inlet is higher than the height of the flow channel.

[0008] The partition is provided with an outlet that communicates with the inlet. The float is floatingly positioned below the partition to open and close the outlet. When the outlet is open, it connects the water storage chamber and the steam chamber.

[0009] In some embodiments, the height of the water inlet is higher than the height of the bottom wall of the water storage chamber.

[0010] In some embodiments, the float valve assembly includes a float valve cover that is removably disposed over the partition.

[0011] In some embodiments, the baffle includes a partition plate, the partition plate having an upwardly protruding protrusion, and the water inlet being disposed on the protrusion;

[0012] The float valve cover has a downward protruding annular portion, which covers the periphery of the protrusion. The flow channel is formed between the lower end face of the annular portion and the upper end face of the partition.

[0013] In some embodiments, the baffle includes a partition plate, the partition plate having an upwardly protruding protrusion, and the water inlet being disposed on the protrusion;

[0014] The float valve cover has a downward protruding annular portion, which covers the periphery of the protrusion. The lower part of the annular portion has multiple flow guide holes spaced circumferentially, and the multiple flow guide holes together form the flow guide channel.

[0015] In some embodiments, the float valve cover is provided with a downwardly protruding filter section, the filter section covers the periphery of the water inlet, and the filter section is provided with a plurality of filter holes spaced apart circumferentially;

[0016] Alternatively, the float valve cover includes a valve cover body and a filter screen, the filter screen being connected to the valve cover body and surrounding the water inlet, and the filter screen having multiple filter holes.

[0017] In some embodiments, an installation hole is provided on the bottom wall of the water storage cavity, and the partition is disposed at the installation hole;

[0018] The water tank is provided with a surrounding rib that protrudes upward around the mounting hole. The surrounding rib is provided with a guide groove that connects the water storage chamber and the water inlet. The float valve cover is supported on the surrounding rib.

[0019] In some embodiments, an installation hole is provided on the bottom wall of the water storage cavity, and the partition is disposed at the installation hole;

[0020] The water tank is provided with a surrounding rib that protrudes upward around the mounting hole, and the lower part of the surrounding rib forms the flow channel.

[0021] In some embodiments, the float valve assembly includes a float valve cover that is detachably supported on the retaining rib.

[0022] In some embodiments, the partition includes a sealing gasket, the sealing gasket includes a sealing body, a hollow cavity is formed in the central region of the sealing body, an upwardly protruding protrusion is connected to the upper periphery of the hollow cavity, and the water inlet is formed on the top surface of the protrusion.

[0023] The lower periphery of the hollow cavity is connected to a downwardly extending sealing lip, which surrounds and forms the water outlet. The float abuts against the sealing lip to seal the water outlet.

[0024] The technical solution provided in this application has at least the following advantages compared with the prior art:

[0025] 1. The steam cooking appliance provided in this application, by installing a float valve assembly on the water tank, controls the opening and closing between the water storage chamber and the steam chamber, ensuring that the water level in the steam chamber remains low, thus improving the heating efficiency of the heating element and achieving rapid steam generation. The float valve assembly includes a baffle and a float, with the baffle separating the water storage chamber and the steam chamber. The baffle has a water inlet, and the float valve assembly and / or the water tank have a guide channel connecting the water storage chamber and the water inlet, with the inlet height higher than the guide channel height. Because grease has a lower density than water, it floats on the surface of the water. When water needs to be added to the steam chamber, the denser water in the lower layer of the water storage chamber flows into the steam chamber through the guide channel and the water inlet. When the water level in the storage chamber decreases, and it is lower than the height of the inlet but higher than the height of the guide channel, the water in the storage chamber can no longer flow into the steam chamber through the guide channel and the inlet. This allows the lower-density grease to remain in the storage chamber or be isolated in the area above the baffle, preventing it from flowing through the inlet on the baffle to the area below the baffle and into the steam chamber. This achieves the purpose of filtering grease, ensuring the cleanliness of the float valve assembly located in the area below the baffle and in the steam chamber. It prevents grease from flowing into the area below the baffle and into the steam chamber, forming dirt and producing odors. At the same time, it prevents grease from flowing onto the float below the baffle, causing the float to stick and lose its buoyancy. This ensures the normal functioning of the float valve assembly and improves the user experience.

[0026] 2. By setting the height of the water inlet on the baffle to be higher than the height of the bottom wall of the water storage chamber, when the water level in the water storage chamber is lower than the height of the water inlet on the baffle, the water in the water storage chamber cannot flow into the steam chamber through the guide channel via the water inlet on the baffle. This allows a certain amount of water to be maintained in the water storage chamber, thereby retaining as much of the less dense grease as possible in the water storage chamber and improving the grease filtration effect.

[0027] 3. By setting the float valve assembly including the float valve cover, and the float valve cover being detachably placed on top of the partition, the float valve cover forms a shield to prevent users from pouring water directly onto the area above the partition when adding water to the water tank, thus failing to achieve the purpose of controlling the water volume in the steam chamber using the float valve assembly; and it is also convenient to remove the float valve cover for easy cleaning of the partition, preventing impurities or grease from accumulating and producing odors.

[0028] 4. By setting up a baffle plate, an upwardly protruding part is provided on the baffle plate, and a downwardly protruding annular part is provided on the float valve cover. The annular part covers the periphery of the protruding part, and a flow guiding channel is formed between the lower end face of the annular part and the upper surface of the baffle plate. Alternatively, multiple flow guiding holes are provided circumferentially at intervals on the lower part of the annular part, and the multiple flow guiding holes together form a flow guiding channel. With this setting, the purpose of filtering grease can be achieved by simply improving the structure of the baffle plate and the float valve cover. The structure is simple and easy to implement.

[0029] 5. By providing a downward-protruding filter section on the float valve cover, or by providing a filter screen on the valve cover body of the float valve cover, the purpose of filtering impurities in the water is achieved, effectively preventing impurities in the water from flowing into the steam chamber through the water inlet on the baffle. Attached Figure Description

[0030] 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.

[0031] 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.

[0032] Figure 1 This is an exploded structural diagram of a steam cooking appliance provided in an embodiment of this application;

[0033] Figure 2 This is a cross-sectional view of a steam cooking appliance provided in an embodiment of this application;

[0034] Figure 3 A partial cross-sectional view of a steam cooking appliance provided in an embodiment of this application;

[0035] Figure 4 for Figure 3 A partially enlarged structural diagram of section A in the middle;

[0036] Figure 5 for Figure 4 A cross-sectional view of the float valve cover and the baffle shown.

[0037] Figure 6 for Figure 5 A top view of the partition shown.

[0038] Figure 7 A cross-sectional structural schematic diagram of a steam cooking appliance provided in one embodiment of this application from another perspective;

[0039] Figure 8 A cross-sectional view of the float valve cover of a steam cooking appliance provided in another embodiment of this application;

[0040] Figure 9 A cross-sectional view of the float valve cover and baffle of a steam cooking appliance provided in another embodiment of this application.

[0041] Among them, 1. Water tank; 11. Water storage chamber; 12. Steam chamber; 13. Mounting hole; 14. Reinforcing bar; 141. Flow guide channel;

[0042] 2. Float valve assembly; 21. Partition; 211. Inlet; 212. Outlet; 213. Protrusion; 214. Sealing body; 215. Sealing lip; 22. Float; 23. Flow guide channel; 24. Float valve cover; 241. Annular part; 242. Filter part; 25. Float valve seat;

[0043] 3. Heating element;

[0044] 4. Base. Detailed Implementation

[0045] 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.

[0046] 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.

[0047] Reference Figures 1 to 3As shown, some embodiments of this application provide a steam cooking appliance, including a water tank 1, a float valve assembly 2, and a heating element 3. The water tank 1 has a water storage chamber 11 and a steam chamber 12. The bottom wall of the steam chamber 12 is lower than the bottom wall of the water storage chamber 11. The float valve assembly 2 is disposed on the water tank 1 and is used to control the on / off connection between the water storage chamber 11 and the steam chamber 12. The heating element 3 is disposed below the steam chamber 12.

[0048] It should be understood that by setting the water tank 1 to have a water storage chamber 11 and a steam chamber 12, and the bottom wall of the steam chamber 12 being lower than the bottom wall of the water storage chamber 11, water in the water storage chamber 11 can flow into the steam chamber 12, thereby achieving the function of replenishing water to the steam chamber 12; by setting a float valve assembly 2 on the water tank 1, the float valve assembly 2 is used to control the opening and closing between the water storage chamber 11 and the steam chamber 12, and the heating element 3 is located below the steam chamber 12, so that the water level in the steam chamber 12 is always kept at a low level, and the heating efficiency of the heating element 3 in the steam chamber 12 is improved, thereby achieving the purpose of rapid steam generation.

[0049] In a specific implementation, the heating element 3 can be a heating plate, which can be set at the bottom of the steam chamber 12, so that the heating plate has a large contact area with the water in the steam chamber 12, thereby improving the heating efficiency of the heating plate on the water in the steam chamber 12. In addition, the steam cooking appliance may also include a base 4, on which the water tank 1 is mounted.

[0050] Among them, reference Figures 2 to 4 As shown, the float valve assembly 2 includes a baffle 21 and a float 22. The baffle 21 is provided with an inlet 211. The float valve assembly 2 and / or the water tank 1 are provided with a guide channel 23 that connects the water storage chamber 11 and the inlet 211. The height of the inlet 211 is higher than the height of the guide channel 23. The baffle 21 is provided with an outlet 212 that connects to the inlet 211. The float 22 is floatably disposed below the baffle 21 to open and close the outlet 212. When the outlet 212 is open, it connects the water storage chamber 11 and the steam chamber 12.

[0051] It should be noted that the float valve assembly includes a baffle 21 and a float 22. The baffle 21 is used to separate the water storage chamber 11 and the steam chamber 12, and the baffle 21 is provided with an inlet 211 so that the water in the water storage chamber 11 can flow to the steam chamber 12 through the inlet 211. The baffle 21 is provided with an outlet 212 that communicates with the inlet 211. The float 22 is floatably located below the baffle 21 so that the outlet can be opened or closed by the up and down movement of the float 22, thereby realizing the on / off control between the water storage chamber 11 and the steam chamber 12.

[0052] In a specific implementation, the partition 21 may include a partition plate, which may be a sealing partition plate (or a sealing gasket). The bottom wall of the water storage chamber 11 may be provided with an installation hole. The partition plate is installed at the installation hole to close the installation hole. The partition plate is provided with an inlet and an outlet connected to the inlet, so as to connect the water storage chamber 11 and the steam chamber 12 by using the inlet and outlet on the partition plate.

[0053] Of course, the partition 21 is not limited to the partition plate, but may also include other components with partition function. For example, the partition 21 may also include a hollow cylindrical valve body, and a partition part is formed on the inner side wall of the valve body near its upper port. An inlet is provided on the side wall of the valve body above the partition part, and an outlet is provided on the partition part to communicate with the inlet, so as to connect the water storage chamber 11 and the steam chamber 12 by using the inlet on the side wall of the valve body and the outlet on the partition part.

[0054] In addition, the partition 21 can also be a component structure. For example, the partition 21 includes a partition and a cover structure disposed on the partition. The cover structure is provided with a water inlet, and the partition is provided with a water outlet communicating with the water inlet, so as to connect the water storage chamber 11 and the steam chamber 12 by using the water inlet on the cover structure and the water outlet on the partition.

[0055] It should be understood that a flow channel 23 connecting the water storage chamber 11 and the inlet 211 can be provided on the float valve assembly 2, or a flow channel 23 connecting the water storage chamber 11 and the inlet 211 can be provided on the water tank 1. Alternatively, the float valve assembly 2 and the water tank 1 can be configured to jointly form a flow channel 23 connecting the water storage chamber 11 and the inlet 211, allowing water in the water storage chamber 11 to flow through the flow channel 23 to the inlet 211 on the baffle 21. The height of the inlet 211 on the baffle 21 is higher than the height of the flow channel 23, meaning the height of the inlet 211 is higher than the height of the highest point of the flow channel 23. When the water level in the water storage chamber 11 is lower than the height of the inlet 211 on the baffle 21, the water in the water storage chamber 11 cannot flow through the flow channel 23 to the inlet 211 on the baffle 21.

[0056] The steam cooking appliance provided in this application embodiment has a water inlet 211 on the baffle 21 of the float valve assembly 2, and a guide channel 23 connecting the water storage chamber 11 and the water inlet 211 on the float valve assembly 2 and / or the water tank 1, with the height of the water inlet 211 being higher than the height of the guide channel 23. Thus, because the density of grease is less than that of water, the grease will float on the surface of the water. When water needs to be added to the steam chamber 12, the denser water in the lower layer of the water storage chamber 11 will flow into the steam chamber 12 through the guide channel 23 and the water inlet 211. As the water level in the water storage chamber 11 decreases, when the water level in the water storage chamber 11 is lower than the height of the water inlet 211 but higher than the height of the guide channel 23, the water in the water storage chamber 11 can no longer flow through the guide channel 23. The grease flows into the steam chamber 12 through the guide channel 23 and the inlet 211, thus keeping the lower density grease in the water storage chamber 11 or isolating it in the area above the baffle 21. It does not flow into the area below the baffle 21 or into the steam chamber 12 through the inlet 211, achieving the purpose of filtering grease. This ensures the cleanliness of the float valve assembly 2 in the area below the baffle 21 and in the steam chamber 12, preventing grease from flowing into the area below the baffle 21 and into the steam chamber 12, forming dirt and producing odors. At the same time, it prevents grease from flowing onto the float 22 below the baffle 21, causing the float 22 to stick and lose its floating ability. This ensures the normal functioning of the float valve assembly 2 and improves the user experience.

[0057] In some embodiments, refer to Figure 3 and Figure 4 As shown, the height of the water inlet 211 on the baffle 21 is higher than the height of the guide channel 23, and the height of the water inlet 211 on the baffle 21 is higher than the height of the bottom wall of the water storage chamber 11. For example, referring to... Figure 4 As shown in the figure, the curved arrow indicates the flow direction of water in the water storage chamber 11 through the guide channel 23 to the water inlet 211 on the baffle 21.

[0058] During the cooking process of a steam cooking appliance, when the water level in the steam chamber 12 falls below a certain level, water from the water storage chamber 11 flows into the steam chamber 12 through the guide channel 23 and the inlet 211 on the baffle 21 to replenish the steam chamber 12. As the water level in the water storage chamber 11 decreases, when the water level in the water storage chamber 11 is lower than the height of the inlet 211 on the baffle 21, the water in the water storage chamber 11 cannot flow into the steam chamber 12 through the guide channel 23 and the inlet 211 on the baffle 21. In this way, compared to a solution where the bottom wall of the water storage chamber 11 is higher than the inlet 211 on the baffle 21, a certain amount of water can be retained in the water storage chamber 11, so that as much of the less dense grease as possible is retained in the water storage chamber 11 and does not flow into the steam chamber 12 through the inlet 211 on the baffle 21, thus improving the grease filtering effect.

[0059] It should be noted that the height difference between the water inlet 211 on the baffle 21 and the bottom wall of the water storage chamber 11 should not be too high, so as to avoid the water in the water storage chamber 11 being unable to flow into the steam chamber 12 through the water inlet 211 when there is still a high water level in the water storage chamber 11, causing the heating element 3 to burn dry. The specific value is not limited here and can be reasonably set according to actual needs.

[0060] In some embodiments, refer to Figures 1 to 4 , Figure 7 As shown, the float valve assembly 2 includes a float valve cover 24, which is detachably disposed above the partition 21.

[0061] This design allows the float valve cover 24 to form a shield above the partition 21, preventing users from pouring water directly onto the area above the partition 21 when adding water to the water tank 1, thus preventing the float valve assembly 2 from controlling the amount of water in the steam chamber 12. It also makes it easy to remove the float valve cover 24 for cleaning the partition 21 and preventing impurities or grease from accumulating and causing odors.

[0062] It should be noted that in traditional steam cooking appliances, the float valve assembly is typically installed at a specific location within the water tank from the bottom. To shield the area above the float valve assembly, a shielding section is usually integrally formed on the water tank. However, this design makes it difficult to clean the shielding component, leading to unpleasant odors due to the accumulation of impurities or grease. Related technologies have made the float valve assembly a detachable structure that can be removed from the water tank for easier cleaning. However, since the float is a moving part, frequent disassembly and reassembly can easily cause problems such as improper assembly, resulting in malfunctions in the float's upward movement.

[0063] In this embodiment, a detachable float valve cover 24 is provided in the upper region of the partition 21 so that the partition 21 can be cleaned by removing the float valve cover 24, thereby avoiding the generation of odors in the partition 21 due to the deposition of impurities or oil stains; and the removal of the float valve cover 24 does not affect the normal function of the float 22, thereby avoiding problems such as abnormal function of the float 22 caused by frequent disassembly of the float valve assembly 2.

[0064] To enable the float valve cover 24 to be detachably mounted above the partition 21, in some embodiments, refer to Figure 4 and Figure 5 As shown, an installation hole 13 is provided on the bottom wall of the water storage cavity 11, and a baffle 21 is provided at the installation hole 13. A surrounding rib 14 is provided on the water tank 1, which surrounds the installation hole 13 and protrudes upward. A guide groove 141 is provided on the surrounding rib 14 to connect the water storage cavity 11 and the water inlet 211. The float valve cover 24 is detachably supported on the surrounding rib 14.

[0065] With this configuration, water in the water storage chamber 11 can flow through the guide groove 141 on the surrounding rib 14 to the inner area of ​​the surrounding rib 14, and then flow through the water inlet 211 on the partition 21 to the steam chamber 12, thus achieving the purpose of replenishing the steam chamber 12 with water from the water storage chamber 11. The float valve cover 24 is detachably supported on the surrounding rib 14, which can both shield the area above the partition 21 and ensure that the setting of the float valve cover 24 does not affect the smooth flow of water in the water storage chamber 11 to the water inlet 211 on the partition 21, and then flow through the water inlet 211 on the partition 21 to the steam chamber 12.

[0066] In specific implementation, refer to Figure 4 and Figure 5 As shown, a limiting groove is provided on the outer circumferential surface of the retaining rib 14, and a limiting buckle is provided on the inner circumferential surface of the float valve cover 24. The limiting buckle is engaged in the limiting groove, thereby enabling the float valve cover 24 to be detachably assembled on the retaining rib 14. Of course, the detachable connection between the float valve cover 24 and the retaining rib 14 is not limited to the above-mentioned locking and engaging method of the limiting buckle and the limiting groove; other methods such as fasteners can also be used to achieve a detachable connection.

[0067] In some embodiments, refer to Figure 4 , Figure 5 and Figure 6 As shown, the baffle 21 includes a baffle plate with an upwardly protruding protrusion 213 on the baffle plate, and a water inlet 211 located on the protrusion 213. The float valve cover 24 has a downwardly protruding annular portion 241, which covers the periphery of the protrusion 213, and a flow guiding channel 23 is formed between the lower end face of the annular portion 241 and the upper end face of the baffle plate. With this configuration, the purpose of filtering grease can be achieved by simply modifying the structure of the baffle plate and the float valve cover 24. The structure is simple and easy to implement.

[0068] In a specific implementation, the inlet 211 can be located on the top surface of the protrusion 213. The number of inlets 211 is not limited to one; there can be multiple inlets 211 spaced apart circumferentially along the protrusion 213. The annular portion 241 on the float valve cover 24 can have a structure with a larger lower dimension and a smaller upper dimension. For example, refer to... Figure 5 As shown, the float valve cover 24 is formed as an inverted stem cup-shaped structure, with the lower end of the float valve cover 24 covering the periphery of the protrusion 213 on the partition.

[0069] Of course, in specific implementations, the flow channel 23 is not limited to being formed between the lower surface of the float valve cover 24 and the upper end surface of the baffle. In other embodiments, the baffle 21 includes a baffle with an upwardly protruding protrusion 213, and an inlet 211 is located on the protrusion 213. The float valve cover 24 has a downwardly protruding annular portion 241 that covers the periphery of the protrusion 213. The lower part of the annular portion 241 has multiple flow guide holes spaced circumferentially, and the multiple flow guide holes together form the flow channel 23. This arrangement can also achieve the purpose of filtering grease, with a simple structure and easy implementation.

[0070] In practice, in order to utilize the principle that grease floats on the surface of water to filter oil, the height of multiple guide holes can be lower than the height of the water inlet 211 on the baffle.

[0071] It should be noted that during the cooking process of steam cooking appliances, food scraps and other impurities may fall into the water storage chamber 11. In order to prevent impurities from flowing into the steam chamber 12 through the water inlet 211 on the baffle 21, this embodiment adds a filter structure to the float valve cover 24 to filter the water before it enters the water inlet 211 of the baffle 21.

[0072] In some embodiments, refer to Figure 8 and Figure 9 As shown, the float valve cover 24 has a downwardly protruding filter section 242 that covers the periphery of the water inlet 211. The filter section 242 has multiple filter holes spaced circumferentially. This arrangement allows water in the water storage chamber 11 to flow through the small filter holes on the float valve cover 24 and then to the water inlet 211 on the baffle 21 located inside the filter section 242, achieving the purpose of filtration. This prevents impurities in the water storage chamber 11 from flowing into the steam chamber 12 because they are blocked outside the filter section 242 of the float valve cover 24.

[0073] In practical implementation, the filter section 242 can be integrally formed with the float valve cover 24 to reduce the number of parts and save assembly steps. The height of the multiple filter holes can all be lower than the height of the water inlet 211 on the baffle 21, so that while using the filter holes to filter impurities, the principle of grease floating on the surface of water can be used to filter grease. It should be understood that if only the filtration effect of the filter holes on impurities is considered, the height of the filter holes can also be higher than the height of the water inlet 211 on the baffle 21.

[0074] In other embodiments, the float valve cover 24 includes a valve cover body and a filter screen. The filter screen is connected to the valve cover body and surrounds the water inlet 211. Multiple filter holes are formed on the filter screen. This arrangement allows the filter screen to filter impurities in the water, effectively preventing impurities from flowing into the steam chamber 12 through the water inlet 211 on the baffle 21. In specific implementations, the filter screen can be a metal filter screen, or it can be a plastic filter screen. The filter screen can be fixed to the valve cover body by snap-fit, adhesive, screw fixing, or other methods.

[0075] It should be noted that, in specific implementation, the flow channel is not limited to being formed on the float valve assembly 2, but can also be formed on the water tank 1 as needed.

[0076] In some embodiments, a mounting hole 13 is provided on the bottom wall of the water storage chamber 11, and a baffle 21 is provided at the mounting hole 13; a surrounding rib 14 is provided on the water tank 1, which surrounds the mounting hole 13 and protrudes upward, and the lower region of the surrounding rib 14 forms a flow channel. In this embodiment, in order to achieve the function of filtering grease by utilizing the principle that grease floats on the surface of water, the height of the water inlet 211 on the baffle 21 needs to be higher than the height of the flow channel. To achieve this purpose, the baffle 21 can be a partition, with an upwardly protruding protrusion 213 on the partition, and the water inlet 211 is provided on the protrusion 213. With this configuration, the purpose of filtering grease can be achieved by simply modifying the structure of the partition and the water tank 1, and the structure is simple and easy to implement.

[0077] Furthermore, the float valve assembly 2 includes a float valve cover 24, which is detachably supported on the retaining rib 14. This arrangement allows the retaining rib 14 to support the float valve cover 24 and enables the float valve cover 24 to be detachably mounted on the retaining rib 14, facilitating the removal of the float valve cover 24 to clean the partition 21 located below the float valve cover 24.

[0078] In some embodiments, refer to Figure 6 and Figure 9As shown, the partition 21 is a sealing gasket, which includes a sealing body 214. A hollow cavity is formed in the middle region of the sealing body 214. An upwardly protruding protrusion 213 is connected to the upper periphery of the hollow cavity. A water inlet 211 is opened on the top surface of the protrusion 213. A downwardly extending sealing lip 215 is connected to the lower periphery of the hollow cavity. The sealing lip 215 surrounds and forms a water outlet 212. The float 22 abuts against the sealing lip 215 to close the water outlet 212.

[0079] By placing the inlet 211 of the baffle 21 on the top surface of the protrusion 213, the inlet 211 is positioned at a certain height. Combined with the flow channel 23 provided on the float valve assembly 2 and / or the water tank 1, the principle of grease floating on the surface of water is utilized to achieve the purpose of grease filtration. It can also be combined with the filter structure provided on the float valve cover 24 to achieve the purpose of filtering impurities. By providing a sealing lip 215 on the baffle 21, it abuts against the float 22 when the float 22 rises to a certain height, thereby sealing the outlet 212 and disconnecting the water storage chamber 11 and the steam chamber 12.

[0080] It should be noted that, referring to Figures 2 to 4 As shown, in addition to the aforementioned baffle 21, float 22, and float valve cover 24, the float valve assembly 2 may also include a float valve seat 25. The float valve seat 25 can be installed on the water tank 1, and a receiving cavity is formed on the float valve seat 25, in which the float 22 is floatably disposed. A connecting hole is provided on the side of the float valve seat 25 to connect the receiving cavity and the steam chamber 12, so that water flowing into the receiving cavity through the inlet 211 on the baffle 21 can flow into the steam chamber 12 through the connecting hole.

[0081] 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.

[0082] 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 water tank, a float valve assembly, and a heating element, wherein the water tank has a water storage chamber and a steam chamber, the bottom wall of the steam chamber being lower than the bottom wall of the water storage chamber, the float valve assembly being disposed on the water tank for controlling the connection and disconnection between the water storage chamber and the steam chamber, and the heating element being disposed below the steam chamber, characterized in that, The float valve assembly includes a baffle and a float. The baffle is provided with a water inlet. The float valve assembly and / or the water tank are provided with a flow channel connecting the water storage chamber and the water inlet. The height of the water inlet is higher than the height of the flow channel. The partition is provided with an outlet that communicates with the inlet. The float is floatingly positioned below the partition to open and close the outlet. When the outlet is open, it connects the water storage chamber and the steam chamber.

2. The steam cooking appliance according to claim 1, characterized in that, The height of the water inlet is higher than the height of the bottom wall of the water storage cavity.

3. The steam cooking appliance according to claim 1, characterized in that, The float valve assembly includes a float valve cover that is detachably disposed above the partition.

4. The steam cooking appliance according to claim 3, characterized in that, The baffle includes a partition plate, the partition plate having an upwardly protruding protrusion, and the water inlet being disposed on the protrusion; The float valve cover has a downward protruding annular portion, which covers the periphery of the protrusion. The flow channel is formed between the lower end face of the annular portion and the upper end face of the partition.

5. The steam cooking appliance according to claim 3, characterized in that, The baffle includes a partition plate, the partition plate having an upwardly protruding protrusion, and the water inlet being disposed on the protrusion; The float valve cover has a downward protruding annular portion, which covers the periphery of the protrusion. The lower part of the annular portion has multiple flow guide holes spaced circumferentially, and the multiple flow guide holes together form the flow guide channel.

6. The steam cooking appliance according to claim 3, characterized in that, The float valve cover is provided with a downward protruding filter part, which covers the periphery of the water inlet, and the filter part is provided with a plurality of filter holes at intervals along the circumference; Alternatively, the float valve cover includes a valve cover body and a filter screen, the filter screen being connected to the valve cover body and surrounding the water inlet, and the filter screen having multiple filter holes.

7. The steam cooking appliance according to claim 3, characterized in that, The bottom wall of the water storage chamber is provided with an installation hole, and the partition is provided at the installation hole; The water tank is provided with a surrounding rib that protrudes upward around the mounting hole. The surrounding rib is provided with a guide groove that connects the water storage chamber and the water inlet. The float valve cover is supported on the surrounding rib.

8. The steam cooking appliance according to claim 1, characterized in that, The bottom wall of the water storage chamber is provided with an installation hole, and the partition is provided at the installation hole; The water tank is provided with a surrounding rib that protrudes upward around the mounting hole, and the lower part of the surrounding rib forms the flow channel.

9. The steam cooking appliance according to claim 8, characterized in that, The float valve assembly includes a float valve cover that is detachably supported on the retaining rib.

10. The steam cooking appliance according to claim 1, characterized in that, The partition includes a sealing gasket, the sealing gasket includes a sealing body, a hollow cavity is formed in the middle region of the sealing body, an upwardly protruding protrusion is connected to the upper periphery of the hollow cavity, and the water inlet is opened on the top surface of the protrusion. The lower periphery of the hollow cavity is connected to a downwardly extending sealing lip, which surrounds and forms the water outlet. The float abuts against the sealing lip to seal the water outlet.

Images