Steam electric appliance

Abstract

The invention provides a steam electric appliance which comprises a container comprising a water containing cavity; the steam generator is arranged in the container and comprises a steam generating cavity, a steam outlet and a through hole, the steam generating cavity is communicated with the steam outlet and the through hole, and the through hole is communicated with the water containing cavity; the cross section area of the steam outlet is larger than that of the through hole.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and more particularly, to a steam appliance. Background Art

[0002] Currently, during the heating process of a steam appliance, a large amount of steam is generated, increasing the pressure in the steam generation chamber. As a result, a portion of the steam is discharged from the through-hole for water inlet, affecting the cooking efficiency. At the same time, certain noise is also generated. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] To this end, the present invention provides a steam appliance.

[0005] In view of this, the present invention provides a steam appliance, comprising: a container including a water storage chamber; a steam generator disposed in the container, the steam generator including a steam generation chamber, a steam outlet, and a through-hole, the steam generation chamber being in communication with the steam outlet and the through-hole respectively, and the through-hole being in communication with the water storage chamber; wherein, the cross-sectional area of the steam outlet is larger than that of the through-hole.

[0006] The steam appliance provided by the present invention includes a container and a steam generator. The steam generator is disposed in the container and includes a steam generation chamber, a steam outlet, and a through-hole. Both the steam outlet and the through-hole are in communication with the steam generation chamber, and the through-hole is in communication with the water storage chamber. In this way, the liquid in the water storage chamber can be replenished into the steam generation chamber through the through-hole, realizing the continuous generation of steam in the steam generation chamber, and eliminating the need for components such as a water tank and a water pump, saving costs and reducing the overall weight of the steam appliance. After starting heating, the liquid in the steam generation chamber will boil to generate a large amount of steam, and the pressure in the steam generation chamber will increase instantaneously, causing a large amount of steam to be discharged from the steam outlet. In the steam appliance proposed in this application, the cross-sectional area of the steam outlet is designed to be larger than that of the through-hole, so that a large amount of steam is discharged from the steam outlet, improving the cooking efficiency, reducing or avoiding the amount of steam discharged from the through-hole, and also avoiding excessive steam discharged from the through-hole to generate noise. At the same time, it can also prevent a large amount of liquid from being discharged from the through-hole after the pressure in the steam generation chamber increases instantaneously, and a large amount of low-temperature liquid enters the steam generation chamber after the pressure stabilizes, thus avoiding affecting the stability of steam generation in the steam generation chamber.

[0007] It can be understood that the steam generation chamber is communicated with the water storage chamber through a through hole, that is, the steam generation chamber is separated from the water storage chamber, thereby reducing the amount of water in the steam generation chamber and enabling steam to be quickly generated in the steam generation chamber. At the same time, when a large amount of steam is generated in the steam generation chamber, the pressure in the steam generation chamber will increase, and then it is easy for a part of the steam to be discharged from the through hole, which not only affects the steam output volume at the steam outlet but also generates noise. Moreover, in the related art, due to the instantaneous increase in the pressure in the steam generation chamber, the water in the steam generation chamber will be pressed out from the through hole, causing the water level in the steam generation chamber to continuously decrease. After the pressure in the steam generation chamber stabilizes, the low-temperature water outside the steam generation chamber will flow back into the steam generation chamber through the through hole, rapidly reducing the water temperature in the steam generation chamber and affecting the continuous output of steam. However, for the steam appliance proposed in this application, the cross-sectional area of the steam outlet is designed to be larger than the cross-sectional area of the through hole, which will cause a large amount of steam to be discharged from the steam outlet, avoiding the situation where steam is discharged from the through hole.

[0008] It should be noted that the cross-sectional area of the steam outlet is the cross-sectional area along the center line perpendicular to the steam outlet, and the cross-sectional area of the through hole is the cross-sectional area along the center line perpendicular to the through hole.

[0009] According to the steam appliance provided by the present invention, the following additional technical features may also be included:

[0010] In some possible designs, the ratio of the cross-sectional area of the steam outlet to the cross-sectional area of the through hole is greater than or equal to 9:1 and less than or equal to 20:1.

[0011] In this design, if the ratio of the cross-sectional area of the steam outlet to the cross-sectional area of the through hole is designed too large, the steam output speed will be reduced; if the ratio of the cross-sectional area of the steam outlet to the cross-sectional area of the through hole is designed too small, steam will be discharged from the through hole. Therefore, designing the ratio of the cross-sectional area of the steam outlet to the cross-sectional area of the through hole to be greater than or equal to 9:1 and less than or equal to 20:1 can not only ensure the steam output speed but also avoid the situation where steam is discharged from the through hole.

[0012] In some possible designs, the diameter of the steam outlet is greater than or equal to 9 mm and less than or equal to 15 mm, and the diameter of the through hole is greater than or equal to 1 mm and less than or equal to 5 mm.

[0013] In this design, if the diameter of the steam outlet is too large, the output speed of the steam will be reduced; if the diameter of the steam outlet is too small, the pressure in the steam generation chamber will be too high, which will cause the steam to be discharged through the through hole. Therefore, the diameter of the steam outlet is set to be greater than or equal to 9 mm and less than or equal to 15 mm, and the diameter of the through hole is greater than or equal to 1 mm and less than or equal to 5 mm, so as to accelerate the steam, form a micro-pressure environment in the steam generation chamber, which can not only ensure the output speed of the steam but also prevent the steam from being discharged through the through hole.

[0014] In specific applications, the diameter of the steam outlet is any value among 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, and 15 mm.

[0015] Optionally, the diameter of the through hole is equal to any value among 1 mm, 2 mm, 3 mm, 4 mm, and 5 mm.

[0016] In some possible designs, the steam generator includes: a cover body, which is arranged in the container and encloses a water storage chamber with the inner wall surface of the container. The cover body is connected to the bottom wall of the container, and a steam generation chamber is arranged inside the cover body. The through hole is arranged on the side wall of the cover body, and the steam outlet is arranged on the top of the cover body; a heating component for heating the steam generation chamber.

[0017] In this design, the steam generator includes a cover body and a heating component. The cover body is arranged in the container and encloses a water storage chamber with the inner wall surface of the container. The heating component is used to heat the steam generation chamber, so that steam is generated in the steam generation chamber and then output through the steam outlet. Among them, the through hole is arranged on the side wall of the cover body, the steam outlet is arranged on the top of the cover body, and the cover body is connected to the bottom wall of the container, thereby reducing the heat exchange between the liquid in the cover body and the liquid in the water storage chamber, ensuring the temperature value of the liquid in the steam generation chamber, and then being able to increase the speed of generating steam in the steam generation chamber.

[0018] Optionally, the cover body is hermetically connected to the bottom wall of the container.

[0019] Specifically, the cover body and the bottom wall of the container are of an integral structure, or the cover body and the bottom wall of the container are of a split structure, and the cover body and the bottom wall of the container are hermetically connected through a sealing member.

[0020] In some possible designs, a steam channel is further arranged inside the cover body. The steam channel is located on the top wall of the steam generation chamber and is communicated with the steam generation chamber. The steam outlet is arranged on the top of the steam channel; among them, the cross-sectional area of the steam channel is smaller than the cross-sectional area of the steam generation chamber.

[0021] In this design, a steam channel is also provided inside the cover. The steam channel is arranged on the top wall of the steam generation cavity, and the steam outlet is arranged at the top of the steam channel. Thus, the steam in the steam generation cavity gathers into the steam channel and then flows out from the steam outlet. Among them, the cross-sectional area of the steam channel is smaller than that of the steam generation cavity, so that the size of the steam channel is reduced compared with the steam generation cavity. Therefore, the purpose of gathering steam is achieved, which further promotes the discharge of steam, improves the steam output speed, and thus enables steam treatment of multiple steam trays or a disinfection area. In addition, setting the steam channel and reducing the cross-sectional area of the steam channel can further reduce the possibility of liquid overflow.

[0022] In some possible designs, the ratio of the cross-sectional area of the steam channel to the area of the top wall of the steam generation cavity is greater than or equal to 3% and less than or equal to 20%.

[0023] In this design, the size of the steam channel has a great influence on the discharge of steam. If the cross-sectional area of the steam channel is too large, the effect of gathering steam is poor, and the role in promoting steam discharge is low. If the cross-sectional area of the steam channel is too small, it is easy to cause the discharge speed to be too fast, and then bring boiling water out, resulting in a water spraying situation. Therefore, setting the ratio of the cross-sectional area of the steam channel to the area of the top wall of the steam generation cavity to be greater than or equal to 3% and less than or equal to 20% can not only ensure the promotion of steam discharge but also avoid the occurrence of water spraying.

[0024] In specific applications, the ratio of the cross-sectional area of the steam channel to the area of the top wall of the steam generation cavity is any ratio among 4%, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, and 20%.

[0025] In some possible designs, at least part of the wall surface of the top wall of the steam generation cavity is an inclined surface. The inclined surface is annular along the circumference of the steam outlet, and the inclined surface inclines from the end close to the steam outlet to the end far from the steam outlet towards the bottom wall of the container.

[0026] In this design, at least part of the wall surface of the top wall of the steam generation cavity is an inclined surface. The inclined wall surface can reduce the volume of the steam generation cavity, and then reduce the liquid capacity in the steam generation cavity, so that the heating component heats a small amount of water, improving the steam generation speed. The inclined surface is annular along the circumference of the steam outlet, and the inclined surface inclines from the end close to the steam outlet to the end far from the steam outlet towards the bottom wall of the container, which is convenient for the manufacture of the cover and reduces the processing difficulty.

[0027] In some possible designs, the cover body further includes: a first cover body disposed on the bottom wall of the container, and a through hole is provided in the first cover body; a second cover body detachably connected to the first cover body, the second cover body includes a steam outlet, and when the second cover body is connected to the first cover body, the second cover body and the first cover body enclose a steam generation chamber.

[0028] In this design, the first cover body is disposed on the bottom wall of the container, and the second cover body is detachably connected to the first cover body. When the first cover body is connected to the second cover body, the first cover body and the second cover body enclose a steam generation chamber. The heating assembly is used to supply heat to the steam generation chamber, so as to quickly generate steam, which is discharged through the steam outlet to realize the treatment of food ingredients or items. At the same time, the first cover body is provided with a through hole, so that the steam generation chamber can communicate with the water storage chamber through the through hole, and then the water storage chamber can replenish water to the steam generation chamber to realize the continuous delivery of steam. Among them, the first cover body and the second cover body are detachably connected. Therefore, when the steam appliance needs to be cleaned, the second cover body can be detached from the container, which is convenient for cleaning the container and the steam generation chamber and improves the cleaning effect.

[0029] In some possible designs, the second cover body includes: a cover body proper, the first cover body extends into the cover body proper; a contraction cylinder disposed on the top of the cover body proper, the contraction cylinder includes a steam channel, and the steam outlet is provided on the top of the contraction cylinder.

[0030] In this design, the second cover body includes a cover body proper and a contraction cylinder. The first cover body can extend into the cover body proper to realize the connection between the first cover body and the second cover body. At the same time, the first cover body and the cover body proper enclose a steam generation chamber. The contraction cylinder is disposed on the top of the cover body proper. The contraction cylinder includes a steam channel, and the steam outlet is provided on the contraction cylinder and communicates with the steam channel. In this way, after the liquid in the steam generation chamber is heated, the steam flows through the steam channel to the steam outlet, and then flows through the steam outlet to the steaming tray or the disinfection chamber.

[0031] In some possible designs, the first cover body and the second cover body are threadedly connected.

[0032] In this design, the first cover body and the second cover body are threadedly connected, which is convenient for the connection and disassembly of the first cover body and the second cover body.

[0033] In some possible designs, one end of the cover body away from the steam outlet is open, and the heating assembly is disposed at the open end of the cover body.

[0034] In this design, one end of the cover body opposite to the steam outlet is open. The heating assembly is disposed at the open end of the cover body. On the one hand, it realizes the closure of the end of the cover body away from the steam outlet, and on the other hand, it also improves the heating efficiency of the liquid in the steam generation chamber.

[0035] In some possible designs, the heating component includes: a sealing plate disposed at the open end of the cover body and sealingly connected to the cover body; and a heating element disposed at an end of the sealing plate facing away from the steam outlet.

[0036] In this design, the heating component includes a sealing plate and a heating element. The sealing plate is disposed at the open end of the cover body, so that the bottom of the steam generation cavity is closed, preventing liquid leakage from the open end of the cover body. The heating element is disposed at an end of the sealing plate facing away from the steam outlet. While realizing liquid heating, it can also prevent the heating element from directly contacting the liquid and causing electric leakage.

[0037] In some possible designs, the bottom of the cover body is sealingly connected to the bottom wall of the container.

[0038] In this design, the cover body is sealingly connected to the bottom wall of the container. Thus, the liquid in the cover body and the liquid in the water containing cavity can only transfer heat through the cover body itself and the through hole, reducing the heat transfer between the liquid in the cover body and the liquid in the water containing cavity, and increasing the steam generation speed in the steam generation cavity.

[0039] Specifically, the cover body and the bottom wall of the container are of an integral structure, or the cover body and the bottom wall of the container are sealingly connected through a sealing member.

[0040] In some possible designs, a part of the bottom wall of the container bulges away from the heating component to form at least a part of the cover body.

[0041] In this design, a part of the bottom wall of the container bulges away from the heating component, thus forming at least a part of the cover body. That is, at least a part of the cover body and the container are of an integral structure, and at least a part of the cover body is a part of the container, improving the connection strength between the cover body and the container, and eliminating the need to add a connection structure between the two to achieve their connection, simplifying the processing difficulty.

[0042] In some possible designs, the water containing cavity is provided with a target water level line; relative to the bottom wall of the steam generation cavity, the top wall of the steam generation cavity is higher than the target water level line, and the distance between the top wall of the steam generation cavity and the target water level line is equal to a preset value.

[0043] In this design, the container includes a water storage chamber, and a steam generator is arranged inside the container for generating steam, and then the ingredients or items are processed through the steam. The steam generator includes a steam generation chamber and a steam channel that are connected and communicated. The steam channel is arranged on the top wall of the steam generation chamber. The steam generated in the steam generation chamber can gather in the steam channel and then flow out from the steam outlet on the steam channel. A through hole is arranged on the steam generation chamber, and the steam generation chamber is communicated with the water storage chamber through the through hole, so that the liquid in the water storage chamber can flow into the steam generation chamber through the through hole for the steam generation chamber to continuously generate steam. At the same time, when adding liquid to the steam generation chamber, the liquid in the steam generation chamber flows into the water storage chamber through the through hole, so that the liquid levels in the water storage chamber and the steam generation chamber are the same. Among them, the water storage chamber is provided with a target water level line for indicating to the user to add water into the container according to this target water level line. The water level line where the top wall of the steam generation chamber is located is higher than the target water level line, and the difference between the two is a preset value, which can avoid the situation that the pressure in the steam generation chamber instantaneously increases or the liquid violently boils and a large amount of water overflows from the steam outlet, thereby avoiding a large amount of high-temperature liquid directly spraying on the ingredients or items and affecting the processing effect of the ingredients or items. It can also avoid the situation that after a large amount of high-temperature liquid overflows, a large amount of low-temperature liquid floods into the steam generation chamber, resulting in a slowdown in the steam generation speed. That is to say, in this application, by setting the water level line where the top wall of the steam generation chamber is located to be higher than the target water level line of the water storage chamber and making the difference between the two a preset value, the steam output and the cooking effect are guaranteed.

[0044] It can be understood that the target water level line set on the water storage chamber indicates to the user that the water addition should not exceed this target water level line. For example, the user can add the liquid to the target water level line or below the target water level line. After adding the liquid into the container, the height of the actual water level line in the water storage chamber is the same as the height of the actual water level line in the steam generation chamber. That is to say, after the user adds the liquid according to the target water level line, the actual water level line in the steam generation chamber is the same as the actual water level line in the water storage chamber. Furthermore, the height of the water level line where the top wall of the steam generation chamber is located is higher than the height of the actual water level line in the steam generation chamber, and the difference between the two is a preset value. Therefore, the situation that the liquid overflows from the steam outlet when the liquid violently boils or the pressure instantaneously increases can be avoided.

[0045] Specifically, the water level line where the top wall of the steam generation chamber is located is the highest water level line of the steam generation chamber.

[0046] Optionally, the specific value of the preset value can be set according to the actual situation. For example, the preset value is greater than or equal to 10 mm, or the preset value is greater than or equal to 15 mm, or the preset value is greater than or equal to 20 mm.

[0047] In some possible designs, the height value of the target water level line relative to the bottom wall of the steam generation chamber is less than or equal to 2 / 3 of the height between the top wall and the bottom wall of the steam generation chamber.

[0048] In this design, if the target water level line is too high, it is easy for the liquid to overflow from the steam outlet during violent boiling, which will affect the cooking of the food ingredients and the output of the steam. Therefore, the height value of the target water level line relative to the bottom wall of the steam generation chamber is less than or equal to 2 / 3 of the height between the top wall and the bottom wall of the steam generation chamber, so as to avoid the liquid overflowing from the steam outlet during violent boiling.

[0049] In some possible designs, the preset value is greater than or equal to 15 mm and less than or equal to 30 mm.

[0050] In this design, if the preset value is greater than or equal to 15 mm and less than or equal to 30 mm, and the difference between the water level line where the top wall of the steam generation chamber is located and the target water level line is too large, it will cause waste of the space inside the container. If the difference between the water level line where the top wall of the steam generation chamber is located and the target water level line is too small, it will cause the liquid to overflow from the steam outlet when the pressure value inside the steam generation chamber increases instantaneously or the liquid boils violently. Therefore, setting the preset value between 15 mm and 30 mm can not only improve the utilization rate of the space inside the container, reduce the manufacturing cost, but also avoid the liquid overflowing from the steam outlet.

[0051] In specific applications, the preset value is equal to any value among 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 25 mm, 26 mm, 27 mm, 28 mm, 29 mm, and 30 mm.

[0052] In some possible designs, the steam appliance further includes: a water receiving tray provided at the top of the container. The water receiving tray is provided with a channel and a first water receiving groove. The first water receiving groove surrounds the channel. One end of the steam generator provided with a steam outlet extends into the channel.

[0053] In this design, the steam appliance further includes a water receiving tray. The water receiving tray is arranged at the top of the container. After the steam processes the food ingredients, condensed water will flow out. The first water receiving groove can hold the condensed water, avoiding the condensed water flowing into the water holding chamber or the steam generation chamber and affecting the steam volume. At the same time, the water receiving tray can also prevent the situation that the condensed water is evaporated again after carrying the smell of the food ingredients or items, resulting in cross-taste. Among them, a channel is provided on the water receiving tray, and one end of the steam generator provided with a steam outlet extends into the channel, so that the steam outlet conveys steam upward through the channel.

[0054] In some possible designs, the water receiving tray further includes a second water receiving trough, which is disposed in the first water receiving trough and recesses from the first water receiving trough towards the container, and the second water receiving trough surrounds the periphery of the steam generating cavity.

[0055] In this design, the water receiving tray further includes a second water receiving trough. In order to make the difference between the water level line where the top wall of the steam generating cavity is located and the target water level line be a preset value, the height of the steam generating cavity can be increased. However, after the height of the steam generating cavity is increased, it will occupy a relatively high space inside the container. Therefore, a second water receiving trough is further provided in the water receiving tray, so that the second water receiving trough surrounds the steam generating cavity, increasing the water receiving capacity of the water receiving tray.

[0056] In some possible designs, the steam appliance further includes: at least one processing unit, which is disposed on the top of the water receiving tray, and the steam outlet is communicated with the processing unit.

[0057] In this design, the steam appliance further includes at least one processing unit. The at least one processing unit is disposed on the top of the water receiving tray, and the steam outlet is communicated with the processing unit to realize steam processing of food ingredients or articles.

[0058] In some possible designs, the steam appliance includes a steamer or a steam sterilizer.

[0059] In this design, the steam appliance includes a steamer or a steam sterilizer.

[0060] The additional aspects and advantages of the present invention will become apparent in the following description section, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0062] Figure 1 FIG. 1 shows a first schematic structural diagram of a steam appliance according to an embodiment of the present invention;

[0063] Figure 2 FIG. 2 shows a second schematic structural diagram of a steam appliance according to an embodiment of the present invention;

[0064] Figure 3 FIG. 3 shows a third schematic structural diagram of a steam appliance according to an embodiment of the present invention;

[0065] Figure 4 FIG. 4 shows a fourth schematic structural diagram of a steam appliance according to an embodiment of the present invention;

[0066] Figure 5 FIG. 5 shows a temperature rise curve graph of the center of the top layer of a steamer according to an embodiment of the present invention and the center of the top layer of a steamer in the related art;

[0067] Figure 6 The temperature rise curve graph of the center of the top layer of the steamer corresponding to steam outlets with different diameters according to an embodiment of the present invention is shown.

[0068] Wherein, Figures 1 to 4 The corresponding relationship between the reference numerals and the component names in the figure is as follows:

[0069] 1 container, 10 water holding cavity, 2 steam generator, 20 steam generation cavity, 200 through hole, 202 inclined surface, 204 top wall, 21 steam channel, 210 steam outlet, 22 cover body, 220 first cover body, 222 second cover body, 223 cover body main body, 224 contraction cylinder, 23 heating assembly, 230 sealing plate, 232 heating element, 3 water receiving tray, 30 channel, 32 first water receiving groove, 34 second water receiving groove, 4 processing part, 40 steaming tray, 42 steaming cover. Detailed implementation manners

[0070] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0071] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0072] Next, refer to Figures 1 to 6 to describe a steam electrical appliance according to some embodiments of the present invention.

[0073] As Figure 1 , Figure 2 and Figure 3 shown, according to an embodiment of the present invention, the present invention provides a steam electrical appliance, including: a container 1 and a steam generator 2.

[0074] Specifically, the container 1 includes a water holding cavity 10; the steam generator 2 is disposed in the container 1, and the steam generator 2 includes a steam generation cavity 20, a steam outlet 210 and a through hole 200. The steam generation cavity 20 is respectively communicated with the steam outlet 210 and the through hole 200, and the through hole 200 is communicated with the water holding cavity 10; wherein, the cross-sectional area of the steam outlet 210 is larger than the cross-sectional area of the through hole 200.

[0075] The steam appliance provided by the present invention includes a container 1 and a steam generator 2. The steam generator 2 is disposed in the container 1. The steam generator 2 includes a steam generation chamber 20, a steam outlet 210, and a through hole 200. Both the steam outlet 210 and the through hole 200 communicate with the steam generation chamber 20, and the through hole 200 communicates with the water storage chamber 10. In this way, the liquid in the water storage chamber 10 can be replenished into the steam generation chamber 20 through the through hole 200, realizing the continuous generation of steam in the steam generation chamber 20, and there is no need to use components such as a water tank and a water pump, saving costs and reducing the overall weight of the steam appliance. After starting heating, the liquid in the steam generation chamber 20 will boil to generate a large amount of steam, and the pressure in the steam generation chamber 20 will instantaneously increase, so a large amount of steam will be discharged to the steam outlet 210. In the steam appliance proposed in this application, the cross-sectional area of the steam outlet 210 is designed to be larger than the cross-sectional area of the through hole 200, so that a large amount of steam is discharged from the steam outlet 210, improving the cooking efficiency, reducing or avoiding the amount of steam discharged from the through hole 200, and also avoiding excessive steam from being discharged from the through hole 200 to generate noise. At the same time, it can also avoid a large amount of liquid being discharged from the through hole 200 after the pressure in the steam generation chamber 20 instantaneously increases, and the situation where a large amount of low-temperature liquid enters the steam generation chamber 20 after the pressure stabilizes, thereby avoiding affecting the stability of steam generation in the steam generation chamber 20.

[0076] It can be understood that the steam generation chamber 20 communicates with the water storage chamber 10 through the through hole 200, that is, the steam generation chamber 20 is separated from the water storage chamber 10, thereby reducing the amount of water in the steam generation chamber 20 and enabling steam to be quickly generated in the steam generation chamber 20. At the same time, when a large amount of steam is generated in the steam generation chamber 20, the pressure in the steam generation chamber 20 will increase, and it is easy for a part of the steam to be discharged from the through hole 200, which not only affects the steam output of the steam outlet 210 but also generates noise. Moreover, in the related art, due to the instantaneous increase in the pressure in the steam generation chamber 20, the water in the steam generation chamber 20 will be pressed out from the through hole 200, causing the water level in the steam generation chamber 20 to continuously decrease. After the pressure in the steam generation chamber 20 stabilizes, the low-temperature water outside the steam generation chamber 20 will flow back into the steam generation chamber 20 through the through hole 200, rapidly reducing the water temperature in the steam generation chamber 20 and affecting the continuous output of steam. However, in the steam appliance proposed in this application, the cross-sectional area of the steam outlet 210 is designed to be larger than the cross-sectional area of the through hole 200, so that a large amount of steam is discharged from the steam outlet 210, avoiding the situation where steam is discharged from the through hole 200.

[0077] It should be noted that the cross-sectional area of the steam outlet 210 is the cross-sectional area along the center line perpendicular to the steam outlet 210, and the cross-sectional area of the through hole 200 is the cross-sectional area along the center line perpendicular to the through hole 200.

[0078] Optionally, according to some embodiments of the present application, the ratio of the cross-sectional area of the steam outlet 210 to the cross-sectional area of the through hole 200 is greater than or equal to 9:1 and less than or equal to 20:1.

[0079] In this embodiment, if the ratio of the cross-sectional area of the steam outlet 210 to the cross-sectional area of the through hole 200 is designed too large, the output speed of the steam will be reduced. If the ratio of the cross-sectional area of the steam outlet 210 to the cross-sectional area of the through hole 200 is designed too small, the steam will be discharged from the through hole 200. Therefore, the ratio of the cross-sectional area of the steam outlet 210 to the cross-sectional area of the through hole 200 is designed to be greater than or equal to 9:1 and less than or equal to 20:1, which not only ensures the output speed of the steam but also avoids the situation where the steam is discharged from the through hole 200.

[0080] As Figure 5 shown, during the actual test process, when the steam appliance is a steamer, under the condition that the distance between the lowest point of the bottom surface of the steaming tray 40 and the upper surface of the steam outlet 210 is greater than 10 mm, when the area ratio of the through hole 200 to the steam outlet 210 is 1:1.25, the performance reaches a stable state. By comparing the center temperature of the top steaming tray 40, the optimized steamer has a faster temperature efficiency than the ordinary steamer. Taking 90°C as the benchmark, the optimized steamer is 136 s faster than the traditional steamer, greatly accelerating the cooking efficiency of the steamer. When the area ratio of the through hole 200 to the steam outlet 210 is increased to 1:1.5, on the product of the steamer with the steam generation cavity 20 increased by the same amount, the efficiency is further increased by 34 s compared with the case where the area ratio of the through hole 200 to the steam outlet 210 is 1:1.25, providing a good user experience for some foods with short cooking times. In addition, when the area ratio of the through hole 200 to the steam outlet 210 is increased to 1:9, the efficiency is further increased compared with the case where the area ratio of the through hole 200 to the steam outlet 210 is 1:1.5.

[0081] Specifically, as Figure 6 shown, through test verification, by comparing the center temperature rise curve of the top cooking cavity and adjusting the area of the steam outlet 210, in the existing structure, when the diameter of the steam outlet 210 is less than 9 mm, there is a situation where steam overflows from the through hole 200, and there is noise when the steam overflows; when the diameter of the steam outlet 210 is greater than 9 mm, the temperature rise gradually stabilizes and increases rapidly.

[0082] In specific applications, when the ratio of the cross-sectional area of the steam outlet 210 to the cross-sectional area of the through hole 200 is any value among 9:1, 10:1, 11:1, 12:1, 13:1, 14:1, 15:1, 16:1, 17:1, 18:1, 19:1, 20:1, it can play a role in improving the cooking efficiency.

[0083] According to some embodiments of the present application, optionally, the diameter of the steam outlet 210 is greater than or equal to 9 mm and less than or equal to 15 mm, and the diameter of the through hole 200 is greater than or equal to 1 mm and less than or equal to 5 mm.

[0084] In this embodiment, if the diameter of the steam outlet 210 is too large, the output speed of the steam will be reduced; if the diameter of the steam outlet 210 is too small, the pressure in the steam generation chamber 20 will be too high, and then the steam will be discharged from the through hole 200. Therefore, the diameter of the steam outlet 210 is set to be greater than or equal to 9 mm and less than or equal to 15 mm, and the diameter of the through hole 200 is greater than or equal to 1 mm and less than or equal to 5 mm, so as to increase the speed of the steam, form a micro-pressure environment in the steam generation chamber 20, which can not only ensure the output speed of the steam, but also prevent the steam from being discharged from the through hole 200.

[0085] In specific applications, the diameter of the steam outlet 210 is any value among 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, and 15 mm.

[0086] Optionally, the diameter of the through hole 200 is any value among 1 mm, 2 mm, 3 mm, 4 mm, and 5 mm.

[0087] As Figure 1 shown, according to some embodiments of the present application, optionally, the steam generator 2 includes: a cover body 22, which is arranged in the container 1 and encloses a water storage chamber 10 with the inner wall surface of the container 1. The cover body 22 is connected to the bottom wall of the container 1. A steam generation chamber 20 is arranged in the cover body 22. A through hole 200 is arranged on the side wall of the cover body 22, and a steam outlet 210 is arranged on the top of the cover body 22; a heating assembly 23 for heating the steam generation chamber 20.

[0088] In this embodiment, the steam generator 2 includes a cover body 22 and a heating assembly 23. The cover body 22 is arranged in the container 1 and encloses a water storage chamber 10 with the inner wall surface of the container 1. The heating assembly 23 is used to heat the steam generation chamber 20 so that steam is generated in the steam generation chamber 20 and then output through the steam outlet 210.

[0089] Among them, the through hole 200 is arranged on the side wall of the cover body 22, the steam outlet 210 is arranged on the top of the cover body 22, and the cover body 22 is connected to the bottom wall of the container 1, thereby reducing the heat exchange between the liquid in the cover body 22 and the liquid in the water storage chamber 10, ensuring the temperature value of the liquid in the steam generation chamber 20, and then being able to increase the speed of generating steam in the steam generation chamber 20.

[0090] Optionally, the cover body 22 is hermetically connected to the bottom wall of the container 1.

[0091] Specifically, the cover body 22 and the bottom wall of the container 1 are of an integral structure, or the cover body 22 and the bottom wall of the container 1 are of a split structure, and the cover body 22 and the bottom wall of the container 1 are sealingly connected through a sealing member.

[0092] According to some embodiments of the present application, optionally, a steam channel 21 is further provided in the cover body 22. The steam channel 21 is located on the top wall 204 of the steam generation chamber 20 and communicates with the steam generation chamber 20. A steam outlet 210 is provided at the top of the steam channel 21; wherein, the cross-sectional area of the steam channel 21 is smaller than the cross-sectional area of the steam generation chamber 20.

[0093] In this embodiment, a steam channel 21 is further provided in the cover body 22. The steam channel 21 is arranged on the top wall 204 of the steam generation chamber 20, and the steam outlet 210 is arranged at the top of the steam channel 21. Thus, the steam in the steam generation chamber 20 gathers into the steam channel 21 and then flows out through the steam outlet 210.

[0094] Among them, the cross-sectional area of the steam channel 21 is smaller than the cross-sectional area of the steam generation chamber 20, so that the size of the steam channel 21 is reduced compared with the steam generation chamber 20. Therefore, the purpose of gathering steam is achieved, the discharge of steam is further promoted, the speed of steam output is increased, and thus the steam treatment of the multi-layer steam tray 40 or the disinfection area can be realized.

[0095] It can be understood that the cross-sectional area of the steam channel 21 is the cross-section of the steam channel 21 perpendicular to the vertical direction, and the cross-sectional area of the steam generation chamber 20 is the cross-section of the steam generation chamber 20 perpendicular to the vertical direction. That is, along the steam flow direction, the steam channel 21 contracts compared with the steam generation chamber 20 to achieve the effect of gathering steam.

[0096] It can be understood that the setting of the cover body 22 can divide the space in the container 1 into two areas: a steam generation chamber 20 and a water storage chamber 10. The heating component 23 supplies heat to the liquid in the steam generation chamber 20. Compared with the heating component 23 supplying heat to all the water in the steam generation chamber 20 and the water storage chamber 10, the amount of water heated by the heating component 23 is reduced. Therefore, when heating a small amount of water in the steam generation chamber 20, the water in the steam generation chamber 20 can boil quickly, and then steam can be generated quickly. The steam generation chamber 20 and the water storage chamber 10 are communicated through a through hole 200. While realizing the replenishment of water in the steam generation chamber 20, the water outside the steam generation chamber 20 can only exchange heat through the surface of the cover body 22 and the through hole 200, so as to achieve the effect that the water in the water storage chamber 10 does not boil while the water in the steam generation chamber 20 boils quickly, and the speed of steam generation is increased.

[0097] In a specific application, a certain amount of liquid is injected into the steam generation chamber 20. The liquid in the steam generation chamber 20 flows through the through hole 200 to the water holding chamber 10, and finally the liquid reaches the same liquid level in the water holding chamber 10 and the steam generation chamber 20.

[0098] It should be noted that the outer wall surface of the cover 22 and the inner wall surface of the container 1 enclose the water holding chamber 10.

[0099] Optionally, the cover 22 and the container 1 are of an integral structure. The cover 22 can also be of a split structure with the container 1, or the cover 22 is divided into a first cover 220 and a second cover 222. The first cover 220 is of an integral structure with the container 1, and the second cover 222 is detachably connected to the first cover 220.

[0100] According to some embodiments of the present application, optionally, the ratio of the cross-sectional area of the steam channel 21 to the area of the top wall 204 of the steam generation chamber 20 is greater than or equal to 3% and less than or equal to 20%.

[0101] In this embodiment, the size of the steam channel 21 has a great influence on the discharge of steam. If the cross-sectional area of the steam channel 21 is too large, the effect of gathering steam is poor, and the role in promoting steam discharge is low. If the cross-sectional area of the steam channel 21 is too small, it is easy to cause the discharge speed to be too fast, and then bring out the boiling water, resulting in a water spraying situation. Therefore, setting the ratio of the cross-sectional area of the steam channel 21 to the area of the top wall 204 of the steam generation chamber 20 to be greater than or equal to 3% and less than or equal to 20% can not only ensure the promotion of steam discharge but also avoid the occurrence of water spraying.

[0102] In a specific application, the ratio of the cross-sectional area of the steam channel 21 to the area of the top wall 204 of the steam generation chamber 20 is any ratio among 4%, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, and 20%.

[0103] As Figure 3 shown, according to some embodiments of the present application, optionally, at least a part of the wall surface of the top wall 204 of the steam generation chamber 20 is an inclined surface 202. The inclined surface 202 is annular along the circumference of the steam outlet 210, and the inclined surface 202 inclines towards the bottom wall of the container 1 from the end close to the steam outlet 210 to the end far from the steam outlet 210.

[0104] In this embodiment, at least part of the top wall 204 of the steam generation chamber 20 is an inclined surface 202. The inclined wall surface can reduce the volume of the steam generation chamber 20, thereby reducing the liquid capacity in the steam generation chamber 20, so that the heating component 23 heats a small amount of water, improving the steam generation speed. The inclined surface 202 is annular along the circumference of the steam outlet 210, and the inclined surface 202 inclines from the end close to the steam outlet 210 to the end far from the steam outlet 210 towards the bottom wall of the container 1, which is convenient for the manufacture of the cover body 22 and reduces the processing difficulty.

[0105] Optionally, the inclined surface 202 is inclined with respect to the vertical direction.

[0106] As Figure 2 and Figure 3 shown, according to some embodiments of the present application, optionally, the cover body 22 further includes: a first cover body 220 disposed on the bottom wall of the container 1, and a through hole 200 is provided in the first cover body 220; a second cover body 222 detachably connected to the first cover body 220, the second cover body 222 includes a steam outlet 210, and when the second cover body 222 is connected to the first cover body 220, the second cover body 222 and the first cover body 220 enclose the steam generation chamber 20.

[0107] In this embodiment, the first cover body 220 is disposed in the container 1, and the second cover body 222 is detachably connected to the first cover body 220. When the first cover body 220 is connected to the second cover body 222, the first cover body 220 and the second cover body 222 enclose the steam generation chamber 20. The heating component 23 is used to supply heat to the steam generation chamber 20, and thus steam can be quickly generated and discharged through the steam outlet 210 to realize the processing of food ingredients or items. At the same time, the first cover body 220 is provided with a through hole 200, so that the steam generation chamber 20 can communicate with the water storage chamber 10 through the through hole 200, and thus the water storage chamber 10 can replenish water to the steam generation chamber 20 to realize the continuous delivery of steam. Among them, the first cover body 220 and the second cover body 222 are detachably connected. Therefore, when it is necessary to clean the steam appliance, the second cover body 222 can be detached from the container 1, which is convenient for cleaning the container 1 and the steam generation chamber 20 and improves the cleaning effect.

[0108] Optionally, the through hole 200 is provided on the side wall of the first cover body 220.

[0109] Optionally, the steam outlet 210 is provided at the top of the second cover body 222.

[0110] Optionally, according to some embodiments of the present application, optionally, when the second cover body 222 is connected to the first cover body 220, one of the first cover body 220 and the second cover body 222 extends into the other.

[0111] In this embodiment, when the second cover 222 is connected to the first cover 220, one of the first cover 220 and the second cover 222 extends into the other to achieve the connection between the first cover 220 and the second cover 222, improving the sealing performance of the connection between the first cover 220 and the second cover 222, thereby reducing the heat exchange amount between the liquid in the steam generation chamber 20 and the liquid in the water storage chamber 10 and ensuring the steam generation efficiency.

[0112] Optionally, a part of the first cover 220 extends into the second cover 222 to achieve the connection between the first cover 220 and the second cover 222.

[0113] According to some embodiments of the present application, optionally, a first sealing ring and a second sealing ring are provided in the second cover 222, and the first sealing ring is located inside the second sealing ring; when the first cover 220 and the second cover 222 are connected, at least a part of the first cover 220 extends into the second cover 222, and the first sealing ring and the second sealing ring are located on both sides of the first cover 220 and contact the first cover 220.

[0114] In this embodiment, a first sealing ring and a second sealing ring are provided in the second cover 222, and the first sealing ring is located inside the second sealing ring. Among them, when the first cover 220 and the second cover 222 are connected, at least a part of the first cover 220 extends into the second cover 222 to achieve the connection between the first cover 220 and the second cover 222, increasing the contact area between the first cover 220 and the second cover 222, thereby improving the sealing performance at the connection between the first cover 220 and the second cover 222. The first sealing ring and the second sealing ring are located on both sides of the first cover 220 and contact the first cover 220, thereby realizing the sealing at the connection between the first cover 220 and the second cover 222 and reducing the heat exchange amount between the liquid in the steam generation chamber 20 and the liquid in the water storage chamber 10.

[0115] Optionally, the first sealing ring contacts the inner wall surface of the first cover 220, and the second sealing ring contacts the outer wall surface of the first cover 220.

[0116] According to some embodiments of the present application, optionally, a rib is provided on the side of the first sealing ring facing the first cover 220, and the first sealing ring contacts the first cover 220 through the rib.

[0117] In this embodiment, a rib is provided on the side of the first sealing ring facing the first cover 220, and the first sealing ring contacts the first cover 220 through the rib, realizing the sealing between the first cover 220 and the second cover 222 and reducing the resistance during the assembly process of the first cover 220 and the second cover 222.

[0118] It can be understood that the rib is annular.

[0119] As shown Figure 4 In some embodiments of the present application, optionally, the second cover 222 includes: a cover body 223, into which the first cover 220 extends; a shrinkage cylinder 224 provided at the top of the cover body 223, and the shrinkage cylinder 224 includes a steam channel 21.

[0120] In this embodiment, the second cover 222 includes a cover body 223 and a shrinkage cylinder 224. The first cover 220 can extend into the cover body 223 to realize the connection between the first cover 220 and the second cover 222. At the same time, the first cover 220 and the cover body 223 enclose a steam generation chamber 20. The shrinkage cylinder 224 is provided at the top of the cover body 223. The shrinkage cylinder 224 includes a steam channel 21. A steam outlet 210 is provided on the shrinkage cylinder 224 and is communicated with the steam channel 21. In this way, after the liquid in the steam generation chamber 20 is heated, the steam flows through the steam channel 21 to the steam outlet 210, and then flows through the steam outlet 210 to the steaming tray 40 or the disinfection chamber.

[0121] Optionally, the cover body 223 and the shrinkage cylinder 224 are of an integral structure.

[0122] In some embodiments of the present application, optionally, the first cover 220 is threadedly connected to the second cover 222.

[0123] In this embodiment, the first cover 220 is threadedly connected to the second cover 222, which facilitates the connection and disassembly of the first cover 220 and the second cover 222.

[0124] Optionally, one of the first cover 220 and the second cover 222 is provided with an internal thread, and the other is provided with an external thread, and the internal thread and the external thread can be screwed together and separated, so as to realize the detachable connection between the first cover 220 and the second cover 222.

[0125] As shown Figure 4 In some embodiments of the present application, optionally, one end of the cover 22 away from the steam outlet 210 is open, and the heating assembly 23 is provided at the open end of the cover 22.

[0126] In this embodiment, one end of the cover 22 opposite to the steam outlet 210 is open. The heating assembly 23 is provided at the open end of the cover 22. On the one hand, it realizes the closure of one end of the cover 22 away from the steam outlet 210, and on the other hand, it also improves the heating efficiency of the liquid in the steam generation chamber 20.

[0127] As shown Figure 4As shown, according to some embodiments of the present application, optionally, the heating assembly 23 includes: a sealing plate 230 disposed at the open end of the cover 22 and sealingly connected to the cover 22; a heating element 232 disposed at the end of the sealing plate 230 facing away from the steam outlet 210.

[0128] In this embodiment, the heating assembly 23 includes a sealing plate 230 and a heating element 232. The sealing plate 230 is disposed at the open end of the cover 22, so that the bottom of the steam generation chamber 20 is closed, preventing liquid leakage from the open end of the cover 22. The heating element 232 is disposed at the end of the sealing plate 230 facing away from the steam outlet 210. While heating the liquid, it can also prevent the heating element 232 from directly contacting the liquid and causing electric leakage.

[0129] According to some embodiments of the present application, optionally, a part of the bottom wall of the container 1 bulges away from the heating assembly 23 to form at least a part of the cover 22.

[0130] In this embodiment, a part of the bottom wall of the container 1 bulges away from the heating assembly 23, thereby forming at least a part of the cover 22. That is, at least a part of the cover 22 and the container 1 are of an integral structure, and at least a part of the cover 22 is a part of the container 1, improving the connection strength between the cover 22 and the container 1, and there is no need to add a connection structure between the two to achieve their connection, simplifying the processing difficulty.

[0131] In a specific application, when the cover 22 includes a first cover 220 and a second cover 222, a part of the bottom wall of the container 1 bulges upward to form the first cover 220.

[0132] It can be understood that the cover 22 is sealingly connected to the bottom wall of the container 1. Thus, the liquid in the cover 22 and the liquid in the water storage chamber 10 can only transfer heat through the cover 22 itself and the through hole 200, reducing the heat transfer between the liquid in the cover 22 and the liquid in the water storage chamber 10, and improving the steam generation speed in the steam generation chamber 20.

[0133] Specifically, the cover 22 and the bottom wall of the container 1 are of an integral structure, or the cover 22 and the bottom wall of the container 1 are sealingly connected through a sealing member.

[0134] According to some embodiments of the present application, optionally, the water storage chamber 10 is provided with a target water level line; relative to the bottom wall of the steam generation chamber 20, the top wall 204 of the steam generation chamber 20 is higher than the target water level line, and the distance between the top wall 204 of the steam generation chamber 20 and the target water level line is equal to a preset value.

[0135] In this embodiment, the container 1 includes a water holding chamber 10, and a steam generator 2 is disposed inside the container 1 for generating steam, and then the food ingredients or articles are processed by the steam. The steam generator 2 includes a steam generating chamber 20 and a steam channel 21 that are connected and communicated. The steam channel 21 is disposed on the top wall 204 of the steam generating chamber. The steam generated in the steam generating chamber 20 can gather in the steam channel 21 and then flow out from the steam outlet 210 on the steam channel 21. A through hole 200 is provided on the steam generating chamber 20, and the steam generating chamber 20 is communicated with the water holding chamber 10 through the through hole 200, so that the liquid in the water holding chamber 10 can flow into the steam generating chamber 20 through the through hole 200 for the steam generating chamber 20 to continuously generate steam. At the same time, when adding liquid into the steam generating chamber 20, the liquid in the steam generating chamber 20 flows into the water holding chamber 10 through the through hole 200, so that the liquid levels in the water holding chamber 10 and the steam generating chamber 20 are the same. Among them, a target water level line is provided on the water holding chamber 10 for indicating to the user to add water into the container 1 according to this target water level line. The water level line where the top wall 204 of the steam generating chamber 20 is located is higher than the target water level line, and the difference between the two is a preset value, which can avoid the situation that the pressure in the steam generating chamber 20 instantaneously increases or the liquid violently boils, causing a large amount of water to overflow from the steam outlet 210. Furthermore, it can avoid a large amount of high-temperature liquid directly spraying onto the food ingredients or articles, affecting the processing effect of the food ingredients or articles, and can also avoid the situation that after a large amount of high-temperature liquid overflows, a large amount of low-temperature liquid surges into the steam generating chamber 20, resulting in a slowdown in the steam generation speed. That is to say, in this application, by setting the water level line where the top wall 204 of the steam generating chamber 20 is located to be higher than the target water level line of the water holding chamber 10 and making the difference between the two a preset value, the steam output and the cooking effect are ensured.

[0136] It can be understood that the target water level line provided on the water holding chamber 10 indicates to the user that the water addition should not exceed this target water level line. For example, the user can add the liquid to the target water level line or below the target water level line. After adding the liquid into the container 1, the height of the actual water level line in the water holding chamber 10 is the same as the height of the actual water level line in the steam generating chamber 20. That is to say, after the user adds the liquid according to the target water level line, the actual water level line in the steam generating chamber 20 is the same as the actual water level line in the water holding chamber 10. Furthermore, the height of the water level line where the top wall 204 of the steam generating chamber 20 is located is higher than the height of the actual water level line in the steam generating chamber 20, and the difference between the two is a preset value. Therefore, the situation that the liquid overflows from the steam outlet 210 when the liquid violently boils or the pressure instantaneously increases can be avoided.

[0137] Specifically, the water level line where the top wall 204 of the steam generating chamber 20 is located is the highest water level line of the steam generating chamber 20.

[0138] Optionally, the specific value of the preset value can be set according to the actual situation. For example, the preset value is greater than or equal to 10 mm, or the preset value is greater than or equal to 15 mm, or the preset value is greater than or equal to 20 mm.

[0139] According to some embodiments of the present application, optionally, the height value of the target water level line relative to the bottom wall of the steam generation chamber 20 is less than or equal to 2 / 3 of the height between the top wall 204 of the steam generation chamber 20 and the bottom wall of the steam generation chamber 20.

[0140] In this embodiment, if the target water level line is too high, it is easy to cause the liquid to overflow from the steam outlet 210 during violent boiling, thereby affecting the cooking of the food ingredients and the output of the steam. Therefore, the height value of the target water level line relative to the bottom wall of the steam generation chamber 20 is less than or equal to 2 / 3 of the height between the top wall 204 of the steam generation chamber 20 and the bottom wall of the steam generation chamber 20, so as to avoid the situation that the liquid overflows from the steam outlet 210 during violent boiling.

[0141] It can be understood that when the liquid in the steam generation chamber 20 is stable, that is, when heating and boiling do not occur, the actual water level in the steam generation chamber 20 is less than or equal to 2 / 3 of the height from the bottom of the steam generation chamber to the top of the steam generation chamber.

[0142] According to some embodiments of the present application, optionally, the preset value is greater than or equal to 15 mm and less than or equal to 30 mm.

[0143] In this embodiment, when the preset value is greater than or equal to 15 mm and less than or equal to 30 mm, if the difference between the water level line where the top wall 204 of the steam generation chamber 20 is located and the target water level line is too large, it will cause waste of the space in the container 1. If the difference between the water level line where the top wall 204 of the steam generation chamber 20 is located and the target water level line is too small, it will cause the liquid to overflow from the steam outlet 210 when the pressure value in the steam generation chamber 20 instantaneously increases or the liquid violently boils. Therefore, setting the preset value between 15 mm and 30 mm can not only improve the utilization rate of the space in the container 1, reduce the manufacturing cost, but also avoid the liquid from overflowing from the steam outlet 210.

[0144] In specific applications, the preset value is equal to any value among 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 25 mm, 26 mm, 27 mm, 28 mm, 29 mm, 30 mm.

[0145] Such as Figures 1 to 3As shown, according to some embodiments of the present application, optionally, the steam appliance further includes: a water receiving tray 3, disposed on the top of the container 1. The water receiving tray 3 is provided with a channel 30 and a first water receiving groove 32. The first water receiving groove 32 surrounds the channel 30. One end of the steam generator 2 having a steam outlet 210 extends into the channel 30.

[0146] In this embodiment, the steam appliance further includes a water receiving tray 3. The water receiving tray 3 is arranged on the top of the container 1. After the steam processes the food materials, condensed water will flow out. The first water receiving groove 32 can hold the condensed water, preventing the condensed water from flowing into the water holding cavity 10 or the steam generating cavity 20 and affecting the steam volume. At the same time, the water receiving tray 3 can also prevent the situation where the condensed water carries the smell of the food materials or items and is evaporated again, resulting in flavor mixing. Among them, a channel 30 is provided on the water receiving tray 3. One end of the steam generator 2 having a steam outlet 210 extends into the channel 30, so that the steam outlet 210 conveys steam upward through the channel 30.

[0147] As Figure 2 shown, according to some embodiments of the present application, optionally, the water receiving tray 3 further includes a second water receiving groove 34. The second water receiving groove 34 is disposed in the first water receiving groove 32 and is recessed from the first water receiving groove 32 into the container 1. The second water receiving groove 34 surrounds the periphery of the steam generating cavity 20.

[0148] In this embodiment, the water receiving tray 3 further includes a second water receiving groove 34. In order to make the difference between the water level line where the top wall 204 of the steam generating cavity 20 is located and the target water level line be a preset value, the height of the steam generating cavity 20 can be increased. However, after the height of the steam generating cavity 20 is increased, it will occupy a relatively high space inside the container 1. Therefore, a second water receiving groove 34 is further provided in the water receiving tray 3, so that the second water receiving groove 34 surrounds the steam generating cavity 20, increasing the water receiving capacity of the water receiving tray 3.

[0149] As Figures 1 to 3 shown, according to some embodiments of the present application, optionally, the steam appliance further includes: at least one processing part 4, disposed on the top of the water receiving tray 3. The steam outlet 210 is communicated with the processing part 4.

[0150] In this embodiment, the steam appliance further includes at least one processing part 4. The at least one processing part 4 is arranged on the top of the water receiving tray 3. The steam outlet 210 is communicated with the processing part 4 to realize the steam processing of food materials or items.

[0151] In specific applications, as Figures 1 to 3As shown, the processing unit 4 includes a steaming tray 40 and a steaming hood 42. The steaming tray 40 is provided with through holes for steam to pass through. The steaming hood 42 is at least disposed around the steaming tray 40, and encloses a cooking cavity with the steaming tray 40 to realize steaming of food materials. When there are multiple processing units 4, the multiple processing units 4 are arranged in sequence in the vertical direction, and the steaming hood 42 of the processing unit 4 at the top covers the corresponding steaming tray 40.

[0152] In another specific application, the processing unit 4 includes a disinfection cavity. The disinfection cavity has a steam inlet, and the steam outlet 210 is communicated with the disinfection cavity through the steam inlet to realize disinfection of the items in the disinfection cavity.

[0153] According to some embodiments of the present application, optionally, the steam electrical appliance includes a steamer or a steam sterilizer.

[0154] In this embodiment, the steam electrical appliance includes a steamer or a steam sterilizer.

[0155] Optionally, the cooking appliance further includes a water receiving tray, and the water receiving tray includes a container 1.

[0156] In a specific application, during use, a certain amount of water is filled into the steam generation cavity 20. When the water fills the steam generation cavity 20, the excess water will drain out of the steam generation cavity 20 along the water injection holes (such as the through hole 200) in the steam generation cavity 20. In this way, the oxygen content in the heating container 1 can be better removed, and the added water will ultimately reach the same water level inside and outside the water receiving tray. By reducing the volume diameter of the upper part of the hood 22, the water capacity in the steam generation cavity 20 can be reduced. After starting heating, the water in the steam generation cavity 20 will boil relatively faster to generate a large amount of steam. At the same time, by controlling the water injection holes and the aperture of the water injection holes in the steam generation cavity 20, the heat exchange of water inside and outside the steam generation cavity 20 can be reduced. At the same time, a large amount of steam will be generated during the heating process, and the pressure in the steam generation cavity 20 will increase, so a large amount of steam will be discharged to the steam outlet 210. When the steam discharges from the steam generation cavity 20, the inner and outer volume regions are connected through the water injection holes. In a short time, the pressure outside the steam generation cavity 20 will be greater than the pressure inside the steam generation cavity 20, so part of the water will be sucked into the steam generation cavity 20 to continue heating. In order to avoid the situation that too much water with a relatively low temperature is sucked in due to too large a pressure difference between inside and outside the steam generation cavity 20, resulting in a decrease in the water temperature in the steam generation cavity 20 and affecting steam generation, by adjusting the ratio of the size of the through hole 200 and the steam outlet 210, the continuous and stable discharge of steam can be realized, thereby reducing the pressure difference between inside and outside the steam generation cavity 20, avoiding the water temperature in the steam generation cavity 20 from decreasing due to sucking in too much water with a relatively low temperature, and thus preventing the total amount of steam during the cooking process from being affected. This structure can also eliminate the need for a water pump and a water tank, and realize automatic quantitative water addition through the pressure difference generated by itself.

[0157] Optionally, during use, a certain amount of water is filled into the steam generation chamber 20. When the steam generation chamber 20 is filled with water, the excess water will drain out of the steam generation chamber 20 along the water injection holes (such as the through hole 200) inside the steam generation chamber 20, and the added water will ultimately reach the same water level inside and outside the steam generation chamber 20. Through sealing with the energy-gathering ring (such as the cover body 22), the water capacity in the water receiving tray can be controlled, and the heat loss of the water inside the energy-gathering ring can be reduced. After starting heating, the water in the steam generation chamber 20 will boil relatively faster to generate a large amount of steam. At the same time, by reducing the aperture of the water injection hole, the heat exchange of the water inside and outside the energy-gathering ring can be reduced. During the heating process, a large amount of steam will be generated, and the pressure inside the energy-gathering ring will increase instantaneously, so a large amount of steam will be discharged from the steam outlet 210 of the energy-gathering ring, and a small amount of steam will also be discharged from the water injection hole. In order to make the steam escape as little as possible from the water injection hole and at the same time avoid the rapid reduction of the water inside the energy-gathering ring due to the instantaneous increase in pressure inside the energy-gathering ring, in the existing structure, it is necessary to ensure that the area ratio of the steam outlet 210 of the energy-gathering ring to the water injection hole is greater than or equal to 9:1. On the basis of ensuring this ratio, it is also possible to avoid excessive steam escaping from the water injection hole to generate noise. At the same time, it is found during the test that due to the instantaneous increase in pressure inside the energy-gathering ring, the water inside the energy-gathering ring will be pressed out from the water injection hole, and the water level inside the energy-gathering ring will continue to decrease. After the pressure inside the energy-gathering ring stabilizes, the low-temperature water outside the energy-gathering ring will flow back into the energy-gathering ring through the water injection hole, causing the water temperature inside the energy-gathering ring to decrease rapidly and affecting the continuous output of steam. Ensuring this ratio can also avoid the occurrence of this problem. In the existing structure, in order to keep the water level inside the energy-gathering ring stable, avoid the instantaneous increase in pressure inside the energy-gathering ring and the violent boiling of water resulting in a large amount of water overflowing from the steam outlet 210 of the energy-gathering ring, the height of the highest liquid level line of the energy-gathering ring is more than 15 mm higher than the actual water level line inside the energy-gathering ring.

[0158] In the present invention, the term "plurality" means two or more, unless otherwise clearly defined. Terms such as "installed", "connected", "connected to", "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0159] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0160] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A steam appliance, characterized in that, Comprising: A container, the container including a water storage chamber; A steam generator, provided in the container, the steam generator including a steam generation chamber, a steam outlet, and a through hole, the steam generation chamber communicating with the steam outlet and the through hole respectively, and the through hole communicating with the water storage chamber; Wherein, the cross-sectional area of the steam outlet is larger than the cross-sectional area of the through hole.

2. The steam appliance according to claim 1, characterized in that The ratio of the cross-sectional area of the steam outlet to the cross-sectional area of the through hole is greater than or equal to 9:1 and less than or equal to 20:

1.

3. The steam appliance according to claim 2, wherein The diameter of the steam outlet is greater than or equal to 9 mm and less than or equal to 15 mm, and the diameter of the through hole is greater than or equal to 1 mm and less than or equal to 5 mm.

4. The steam appliance according to any one of claims 1 to 3, characterized in that, The steam generator includes: A cover body, provided in the container and enclosing the water storage chamber with the inner wall surface of the container, the cover body being connected to the bottom wall of the container, the steam generation chamber being provided inside the cover body, the through hole being provided on the side wall of the cover body, and the steam outlet being provided on the top of the cover body; A heating assembly for heating the steam generation chamber.

5. The steam appliance according to claim 4, characterized in that, A steam channel is further provided inside the cover body, the steam channel being located on the top wall of the steam generation chamber and communicating with the steam generation chamber, and the steam outlet being provided on the top of the steam channel; Wherein, the cross-sectional area of the steam channel is smaller than the cross-sectional area of the steam generation chamber.

6. The steam appliance according to claim 5, wherein, The ratio of the cross-sectional area of the steam channel to the area of the top wall of the steam generation chamber is greater than or equal to 3% and less than or equal to 20%.

7. The steam appliance according to claim 4, wherein, At least a part of the top wall of the steam generation chamber is an inclined surface, the inclined surface being annular along the circumference of the steam outlet, and the inclined surface inclining towards the bottom wall of the container from one end close to the steam outlet to the end far from the steam outlet.

8. The steam appliance according to claim 4, wherein, The cover body further includes: A first cover body, provided on the bottom wall of the container, the through hole being provided on the first cover body; A second cover body, detachably connected to the first cover body, the second cover body including the steam outlet, and when the second cover body is connected to the first cover body, the second cover body and the first cover body enclose the steam generation chamber.

9. The steam appliance according to claim 8, wherein, The second cover body includes: A cover body main body, the first cover body extending into the cover body main body; A contraction cylinder, provided on the top of the cover body main body, the contraction cylinder including a steam channel, and the steam outlet being provided on the top of the contraction cylinder.

10. The steam appliance according to claim 8, characterized in that, The first cover body is threadedly connected to the second cover body.

11. The steam appliance according to claim 4, wherein, One end of the cover body away from the steam outlet is open, and the heating assembly is provided at the open end of the cover body.

12. The steam appliance according to claim 11, wherein, The heating assembly includes: A sealing plate, provided at the open end of the cover body and hermetically connected to the cover body; A heating element, provided at one end of the sealing plate facing away from the steam outlet.

13. The steam appliance according to claim 11, wherein, The bottom of the cover body is hermetically connected to the bottom wall of the container.

14. The steam appliance according to claim 13, wherein, A part of the bottom wall of the container bulges towards the direction away from the heating assembly to form at least a part of the cover body.

15. The steam appliance according to claim 4, wherein The water storage chamber is provided with a target water level line; Wherein, relative to the bottom wall of the steam generation chamber, the top wall of the steam generation chamber is higher than the target water level line, and the distance between the top wall of the steam generation chamber and the target water level line is equal to a preset value.

16. The steam appliance according to claim 15, wherein The height value of the target water level line relative to the bottom wall of the steam generation chamber is less than or equal to 2 / 3 of the height between the top wall and the bottom wall of the steam generation chamber.

17. The steam appliance according to claim 16, wherein The preset value is greater than or equal to 15 mm and less than or equal to 30 mm.

18. The steam appliance according to any one of claims 1 to 3, characterized in that It further includes: A water receiving tray is provided at the top of the container. A channel and a first water receiving groove are provided on the water receiving tray. The first water receiving groove surrounds the channel. One end of the steam generator where the steam outlet is located extends into the channel.

19. The steam appliance according to claim 18, characterized in that, The water receiving tray further includes a second water receiving groove. The second water receiving groove is provided in the first water receiving groove and is recessed from the first water receiving groove towards the container. The second water receiving groove surrounds the periphery of the steam generation chamber.

20. The steam appliance according to claim 19, wherein, It further includes: At least one processing unit is provided on the top of the water receiving tray. The steam outlet is communicated with the processing unit.

21. The steam appliance according to any one of claims 1 to 3, characterized in that, The steam appliance includes a steamer or a steam sterilizer.

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