Electric steamer capable of quickly discharging steam

Abstract

The electric steamer comprises a base with a water storage cavity and a juice receiving disc detachably arranged on the base, a heating piece is arranged in the base, the juice receiving disc is provided with a steam exhaust port, the juice receiving disc is provided with a first water insulation rib extending downwards and a second water insulation rib located on the inner side of the first water insulation rib, and the second water insulation rib is located on the inner side of the first water insulation rib. The water storage cavity is divided into a water supplementing cavity and a heating cavity by the first water insulation rib, the heating piece is used for heating water in the heating cavity to generate steam, the second water insulation rib is located in a heating area of the heating piece and divides the heating cavity into a steam cavity and an air water blocking cavity, and the bottom end of the air water blocking cavity is open to be communicated with the steam cavity; and the steam cavity is communicated with the steam exhaust port. Through the arrangement of the air water blocking cavity, the heating water amount in the heating cavity can be reduced, the steam generation rate is increased, the cooking time is shortened, the user experience is pleasant, and the air water blocking cavity surrounds the air heat preservation layer on the inner side of the steam cavity, so that the heat preservation effect on water and steam in the steam cavity can be achieved, and the heat loss in the steam cavity is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of kitchen appliances, and in particular relates to an electric steamer capable of producing steam quickly. Background Art

[0002] Steam-cooked food is heated evenly and nutrients can be fully retained, so this cooking method is widely used in many cooking utensils, such as steam rice cookers, steam boxes, electric steamers, etc. Most of the electric steamers in the prior art are composed of a pot body, a water tank and a heating plate. The heating plate heats the water in the water tank, and the steam generated by the boiling water rises into the pot body, and the food placed in the pot body is heated and steamed by the steam. Due to the limited heating power and the large amount of water in the water tank, the steam output rate of ordinary electric steamers is slow, and the time from the beginning of heating to the generation of steam is long, and the cooking efficiency is low.

[0003] In order to increase the speed of steam generation, the prior art sets a water retaining ring on the periphery of the heating disk to reduce the amount of water heated by the heating disk, thereby achieving the purpose of improving the efficiency of steam generation. And in order to avoid the problem that the water in the water retaining ring flows outward through the water supply port after being heated and boiled, and heat exchanges with the cold water on the outside, resulting in low thermal efficiency, the prior art also sets a structure of multiple retaining rings on the outside of the water retaining ring. The multiple retaining rings are arranged in a concentric structure and spaced from each other, and finally form a water supply path with a circuitous flow. However, in this scheme, the water retaining ring is arranged along the periphery of the heating disk, that is, the projection of the water retaining ring in the horizontal direction is located on the outside of the heating disk, which results in that during the operation of the heating disk, the amount of water heated by it is the amount of water in the area surrounded by the water retaining ring. This amount of water is still large, and its steam generation rate still has room for further improvement. Utility Model Content

[0004] The present application provides an electric steamer that can quickly produce steam, so as to solve the technical problems of slow steam production rate and low heating efficiency of existing electric steamers.

[0005] The technical solution adopted in this application is:

[0006] A fast steam-generating electric steamer comprises a base with a water storage chamber and a juice collecting tray which can be placed on the base in a removable manner, a heating element is arranged in the base, the juice collecting tray is provided with a steam exhaust port, the juice collecting tray is provided with a first water-blocking rib extending downward and a second water-blocking rib located on the inner side of the first water-blocking rib, the first water-blocking rib divides the water storage chamber into a water replenishing chamber and a heating chamber, the heating element is used to heat water in the heating chamber to generate steam, the second water-blocking rib is located in the heating area of ​​the heating element, the second water-blocking rib divides the heating chamber into a steam chamber and an air water-blocking chamber, the bottom end of the air water-blocking chamber is open to connect with the steam chamber, and the steam chamber is connected with the steam exhaust port.

[0007] The electric steamer with rapid steam output described in the present application also includes the following additional technical features:

[0008] The heating element comprises a heating plate and a heating tube arranged on the heating plate, and the orthographic projection of the second water-isolating rib toward the heating element is located on the inner side of the heating tube.

[0009] The central area of ​​the juice receiving tray is provided with an upwardly raised boss, and the second water-isolating rib is fixedly connected to the bottom end surface of the boss.

[0010] A first water replenishment gap is provided between the bottom of the first water barrier and the bottom wall of the base, and a second water replenishment gap is provided between the bottom of the second water barrier and the bottom wall of the base; and / or a first water replenishment channel is provided at the bottom of the first water barrier, and a second water replenishment channel is provided at the bottom of the second water barrier, and the first water replenishment channel and the second water replenishment channel are staggered in the circumferential direction.

[0011] The juice receiving tray is provided with a third water barrier extending downward and located outside the first water barrier, and the third water barrier divides the water replenishment cavity into a replenishment cavity and an air insulation cavity with a closed top.

[0012] A first water replenishment gap is provided between the bottom of the first water barrier and the bottom wall of the base, and a third water replenishment gap is provided between the bottom of the third water barrier and the bottom wall of the base; and / or a first water replenishment channel is provided at the bottom of the first water barrier, and a third water replenishment channel is provided at the bottom of the third water barrier, and the first water replenishment channel and the third water replenishment channel are staggered in the circumferential direction.

[0013] The bottom wall of the base is provided with a water retaining rib extending upward, and the water retaining rib is located outside the first water-isolating rib.

[0014] The juice receiving tray is provided with a third water barrier located outside the first water barrier, the top end of the third water barrier is fixedly connected to the juice receiving tray, and the bottom end is fixedly connected to the first water barrier, and the third water barrier cooperates with the first water barrier to form an insulating cavity.

[0015] A sealing member is provided at the bottom of the first water barrier, and the first water barrier is sealed against the bottom wall of the base through the sealing member. The first water barrier or the sealing member is provided with a first water replenishment channel.

[0016] The heating element comprises a heating plate and a heating tube arranged on the heating plate, and the orthographic projection of the steam cavity toward the heating element covers at least a partial area of ​​the heating tube.

[0017] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0018] 1. The juice collecting tray in the present application is provided with a first water-blocking rib and a second water-blocking rib extending downward. The first water-blocking rib can divide the water storage chamber into a water replenishing chamber and a heating chamber opposite to the heating element. The second water-blocking rib is located on the inner side of the first water-blocking rib. The second water-blocking rib can divide the heating chamber into a steam chamber and an air water-blocking chamber. Therefore, when the juice collecting tray is placed on the base or heated, the air remaining in the air water-blocking chamber will occupy a part of the space in the air water-blocking chamber and prevent water from entering. The water in the heating chamber will be reduced to a part located in the steam chamber and a part located below the air in the air water-blocking chamber due to the presence of air, thereby greatly reducing the amount of heated water, increasing the steam generation rate, shortening the cooking time, and improving the user experience.

[0019] Moreover, the air in the air water-blocking cavity will also be heated to a higher temperature, thereby forming an air insulation layer surrounding the inner side of the steam cavity, which in turn has a good insulation effect on the water and steam in the steam cavity, reducing the heat loss in the steam cavity, and further improving the energy efficiency ratio and steam generation rate of the electric steamer.

[0020] In addition, the first water-blocking rib and the second water-blocking rib in the present application are both fixedly connected to the juice collecting tray, and the juice collecting tray is firmly defined between the base and the upper steaming tray. During the operation of the electric steamer, the position of the juice collecting tray is stable, thereby ensuring the stability of the position of the steam chamber and the air water-blocking chamber, thereby providing a guarantee for the rapid generation of steam.

[0021] 2. As a preferred embodiment of the present application, the heating element includes a heating plate and a heating tube arranged on the heating plate, and the orthographic projection of the second water-blocking rib toward the heating element is located on the inner side of the heating tube, so that the part opposite to the air water-blocking cavity in the up and down direction is a relatively low temperature zone of the heating element, and the amount of water below the air water-blocking cavity is small. Since this area is opposite to the low temperature zone of the heating element, violent boiling of water in this area is avoided, and water level fluctuation below the air water-blocking cavity is reduced to stabilize the water level below the air water-blocking cavity, thereby preventing the water below the air water-blocking cavity from pushing the water in the steam cavity to be discharged outward due to violent boiling, reducing the convection and heat exchange of water between the steam cavity and the water replenishment cavity, and ensuring the steam generation rate in the steam cavity.

[0022] In addition, because the water below the air water-blocking cavity is facing the low-temperature area of ​​the heating element, the water volume in this area is small. Facing the low-temperature area can avoid excessive temperature rise in the part of the heating plate facing this area in a short period of time, which may cause heat deformation in the local area of ​​the heating plate. This not only effectively extends the service life of the heating plate, but also makes the water volume in the area below the air water-blocking cavity constant, thereby ensuring the steam generation rate in the steam chamber.

[0023] 3. As a preferred embodiment of the present application, the central area of ​​the juice collecting plate has an upwardly raised boss, and the second water-blocking rib is fixedly connected to the bottom end surface of the boss, so that when the overall volume of the electric steamer is constant, the gas space in the air water-blocking cavity can be increased. On the one hand, the thermal insulation effect of the steam cavity can be improved. On the other hand, the increase in gas space can ensure the stable existence of the air water-blocking cavity, prevent water from entering the air water-blocking cavity and further reduce the liquid level below the air water-blocking cavity, thereby further reducing the amount of water in the steam cavity and further improving the steam generation rate.

[0024] 4. As a preferred embodiment of the present application, a first water replenishment channel is provided at the bottom of the first water barrier, and a second water replenishment channel is provided at the bottom of the second water barrier. The first water replenishment channel and the second water replenishment channel are staggered in the circumferential direction to form a circuitous water replenishment path between the first water barrier and the second water barrier. Conversely, when the water below the air water blocking cavity is heated to boil and wants to be discharged, the circuitous water replenishment path can reduce the disturbance of the water below the air water blocking cavity to the water in the steam cavity, thereby reducing the probability of promoting convective heat exchange between the water in the steam cavity and the water in the water replenishment cavity, so that the water in the steam cavity is maintained in a relatively stable state, thereby ensuring the heating efficiency in the steam cavity and thus ensuring the steam generation rate.

[0025] 5. As a preferred embodiment of the present application, the juice receiving tray is provided with a third water-blocking rib extending downward and located outside the first water-blocking rib. The third water-blocking rib is sealed by water to form an air insulation cavity with a closed top between the third water-blocking rib and the first water-blocking rib. The existence of the air insulation cavity can form an air insulation layer around the steam cavity on the periphery of the steam cavity. On the one hand, it reduces the heat loss of the water in the steam cavity to the supply cavity, which helps to improve the heating efficiency in the steam cavity. On the other hand, it reduces the temperature rise of the water in the supply cavity, avoiding the occurrence of the phenomenon of the base being too hot. Therefore, for this embodiment, the inner circle of the steam cavity forms an air insulation layer on the inner side of the steam cavity due to the existence of the air water-blocking cavity, which is used to reduce the heat loss of the steam cavity. The outer circle of the steam cavity forms an air insulation layer on the periphery of the steam cavity due to the existence of the air insulation layer, which is used to reduce the heat loss of the steam cavity. The steam cavity is surrounded in three dimensions in the insulation interlayer formed by the air water-blocking cavity and the air insulation cavity, which greatly reduces the heat loss in the steam cavity, thereby greatly improving the steam generation efficiency in the steam cavity.

[0026] 6. As a preferred embodiment of the present application, the bottom wall of the base is provided with an upwardly extending water retaining rib, which is located on the outside of the first water-isolating rib. The setting of the water retaining rib can produce a certain blocking effect on the convection of water in the steam chamber and the water replenishing chamber, thereby reducing the heat exchange between the steam chamber and the water replenishing chamber, thereby reducing the heat loss in the steam chamber, further improving the thermal efficiency in the steam chamber, and helping to increase the steam generation rate in the steam chamber.

[0027] 7. As a preferred embodiment of the present application, the heating element includes a heating plate and a heating tube arranged on the heating plate, and the orthographic projection of the steam chamber toward the heating element covers at least a partial area of ​​the heating tube, so that the steam chamber can face the high temperature zone of the heating element, further improving the heating efficiency of the water in the steam chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0029] Figure 1 This is a cross-sectional view of a partial structure of an electric steamer in one embodiment of the present application;

[0030] Figure 2 yes Figure 1 A magnified view of part A;

[0031] Figure 3 An exploded view of a partial structure of an electric steamer in one embodiment of the present application;

[0032] Figure 4 This is a cross-sectional view of a partial structure of an electric steamer according to another embodiment of the present application.

[0033] in,

[0034] 1. Base; 11. First water retaining rib; 12. Second water retaining rib;

[0035] 2. Juice tray; 21. First water barrier; 22. Second water barrier; 23. Third water barrier; 24. Boss; 241. Top wall; 242. Side wall; 25. Steam outlet;

[0036] 3. Heating element; 31. Heating plate; 32. Heating tube;

[0037] 4. Air-water-blocking cavity;

[0038] 5. Steam chamber;

[0039] 6. Air insulation cavity;

[0040] 7. Supply chamber;

[0041] 8. The first water replenishment gap;

[0042] 9. The second water replenishment gap;

[0043] 10. The third water replenishment interval. DETAILED DESCRIPTION

[0044] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0045] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.

[0046] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0047] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0049] like Figure 1 and Figure 2As shown, an electric steamer with rapid steam output comprises a base 1 with a water storage chamber and a juice receiving tray 2 which is removably placed on the base 1, a heating element 3 is arranged in the base 1, the juice receiving tray 2 is provided with a steam exhaust port 25, the juice receiving tray 2 is provided with a first water barrier 21 extending downward and a second water barrier 22 located inside the first water barrier 21, the first water barrier 21 divides the water storage chamber into a water replenishment chamber and a heating chamber, the heating element 3 is used for heating water in the heating chamber to generate steam, the second water barrier 22 is located in the heating area of ​​the heating element 3, the second water barrier 22 divides the heating chamber into a steam chamber 5 and an air water blocking chamber 4, the bottom end of the air water blocking chamber 4 is open to connect with the steam chamber 5, and the steam chamber 5 is connected with the steam exhaust port 25.

[0050] The “second water-blocking rib 22 is located in the heating area of ​​the heating element 3” means that the heating element 3 can heat the water within the range of the second water-blocking rib 22. It can be that the orthographic projection of the second water-blocking rib 22 on the horizontal plane coincides with the orthographic projection of the heating element 3 on the horizontal plane, for example, the outer diameter of the second water-blocking rib 22 is equal to the outer diameter of the heating element 3. It can also be that the orthographic projection of the second water-blocking rib 22 on the horizontal plane is located within the range of the orthographic projection of the heating element 3 on the horizontal plane, for example, the outer diameter of the second water-blocking rib 22 is smaller than the outer diameter of the heating element 3. It can also be that the orthographic projection of the second water-blocking rib 22 on the horizontal plane is located outside the range of the orthographic projection of the heating element 3 on the horizontal plane, for example, the outer diameter of the second water-blocking rib 22 is larger than the outer diameter of the heating element 3. No limitation is made here.

[0051] The present application does not limit the form of the air-water-blocking cavity, as long as air can be retained therein. In one example, the top of the air-water-blocking cavity 4 is closed and the bottom is open, so that when the juice tray 2 is placed on the base 1, air is retained in the air-water-blocking cavity 4, occupying a part of the space and preventing water from entering, and it is not easy to directly exchange heat with the relatively cold air above the air-water-blocking cavity 4, thereby further reducing the heat loss of the heating cavity; in another example, the top of the air-water-blocking cavity 4 is provided with micropores and the bottom is open, so that when heating, the speed at which gas enters the air-water-blocking cavity 4 is greater than the speed at which gas flows out of the air-water-blocking cavity 4, thereby forming a certain pressure environment in the air-water-blocking cavity and preventing water from entering. After cooking is completed, the pressure environment will gradually dissipate, thereby preventing the hot water from being brought out when the juice tray is taken out to create a safety hazard.

[0052] By adopting the technical solution of the present application, when the juice receiving tray 2 is placed on the base 1 or heated, the air remaining in the air-water blocking cavity 4 will occupy a part of the space in the air-water blocking cavity and prevent water from entering. The water in the heating cavity will be reduced to the part located in the steam cavity 5 and the part located below the air in the air-water blocking cavity 4 due to the presence of air, thereby greatly reducing the amount of heated water, increasing the steam generation rate, shortening the cooking time, and pleasing the user experience. Moreover, the air in the air-water blocking cavity 4 will also be heated to a higher temperature, thereby forming an air insulation layer surrounding the inner side of the steam cavity 5, thereby having a good insulation effect on the water and steam in the steam cavity 5, reducing the heat loss in the steam cavity 5, and further improving the energy efficiency ratio and steam generation rate of the electric steamer. In addition, the first water-blocking rib 21 and the second water-blocking rib 22 in the present application are both fixedly connected to the juice receiving tray 2, and the juice receiving tray 2 is firmly defined between the base 1 and the upper steaming tray. During the operation of the electric steamer, the position of the juice receiving tray 2 is stable, thereby ensuring the stability of the position of the steam chamber 5 and the air water-blocking chamber 4, thereby providing a guarantee for the rapid generation of steam.

[0053] As a preferred embodiment of the present application, the first water barrier rib 21 and the second water barrier rib 22 are respectively formed integrally with the juice receiving tray 2 and extend downwards respectively, thereby simplifying the structural design of the juice receiving tray 2 and eliminating the increase in assembly processes caused by separate molding. Moreover, the second water barrier rib 22 is formed integrally with the juice receiving tray 2, which can ensure the sealing performance between the top of the second water barrier rib 22 and the bottom of the juice receiving tray 2, thereby ensuring the sealing performance of the upper part of the air water blocking cavity 4, and preventing steam from overflowing from the joint position of the second water barrier rib 22 and the juice receiving tray 2.

[0054] As a preferred embodiment of the present application, Figure 1 and Figure 4As shown, the heating element 3 includes a heating plate 31 and a heating tube 32 arranged on the heating plate 31, and the orthographic projection of the second water-blocking rib 22 toward the heating element 3 is located on the inner side of the heating tube 32. With such an arrangement, the portion opposite to the air water-blocking cavity 4 in the vertical direction can be a relatively low-temperature zone of the heating element 3, and the amount of water below the air water-blocking cavity 4 is small, because the area is directly opposite to the low-temperature zone of the heating element 3, thereby avoiding the violent boiling of water in the area, reducing the fluctuation of the water level below the air water-blocking cavity 4, so that the water level below the air water-blocking cavity 4 is stable, and further, it can be avoided that the water below the air water-blocking cavity 4 pushes the water in the steam cavity 5 to be discharged due to violent boiling, reducing the convection and heat exchange between the water in the steam cavity 5 and the water replenishment cavity, and ensuring the steam generation rate in the steam cavity 5. In addition, because the water below the air water-blocking chamber 4 is facing the low-temperature area of ​​the heating element 3, the water volume in this area is small. Facing the low-temperature area can avoid excessive temperature rise of the part of the heating disk 31 facing this area in a short period of time, which may cause heat deformation of the local area of ​​the heating disk 31. This not only effectively extends the service life of the heating disk 31, but also makes the water volume in the area below the air water-blocking chamber 4 constant, thereby ensuring the steam generation rate in the steam chamber 5.

[0055] In a preferred embodiment, the heating tube 32 extends along the circumference of the heating disk 31 to form a heating ring belt on the heating disk 31 , and the orthographic projection of the second water-isolating rib 22 toward the heating element 3 is located on the inner side of the heating ring belt.

[0056] As a preferred embodiment of the present application, Figure 1 and Figure 2 As shown, the heating element 3 includes a heating plate 31 and a heating tube 32 disposed on the heating plate 31, and the orthographic projection of the steam cavity 5 toward the heating element 3 covers at least a part of the area of ​​the heating tube 32. Furthermore, the heating tube 32 extends along the circumference of the heating plate 31 to form a heating ring belt on the heating plate 31, and the orthographic projection of the steam cavity 5 toward the heating element 3 covers the heating ring belt, so that the steam cavity 5 can face the high temperature area of ​​the heating element 3. During the cooking process, the water in the steam cavity 5 can be heated intensively, further improving the heating efficiency of the water in the steam cavity 5.

[0057] In the present application, the structure of the juice receiving tray 2 can adopt any one of the following embodiments:

[0058] Embodiment 1: The bottom wall of the juice receiving tray 2 is a relatively flat structure, and the second water-isolating rib 22 is fixedly connected to the bottom end surface of the central area of ​​the juice receiving tray 2 and extends downward.

[0059] Implementation method 2: Figure 1As shown, the central area of ​​the juice receiving tray 2 has an upwardly raised boss 24, and the second water-blocking rib 22 is fixedly connected to the bottom end surface of the boss 24. Such an arrangement can increase the gas space in the air-water blocking cavity 4 when the overall volume of the electric steamer is constant, which can improve the thermal insulation effect of the steam cavity 5 on the one hand, and on the other hand, the increase in gas space can ensure the stable existence of the air-water blocking cavity 4, prevent water from entering the air-water blocking cavity 4 and further reduce the liquid level below the air-water blocking cavity 4, thereby further reducing the amount of water in the steam cavity 5 and further improving the steam generation rate.

[0060] As a preferred embodiment of the second embodiment, Figures 1 to 3 As shown, the boss 24 includes a top wall 241 and a side wall 242 fixedly connected to the top wall 241, the second water barrier rib 22 is fixedly connected to the bottom end surface of the top wall 241 and extends downward, the first water barrier rib 21 is fixedly connected to the side wall 242 and extends downward, and the exhaust port 25 is arranged at the connection position of the top wall 241 and the side wall 242. Furthermore, a plurality of exhaust ports 25 are arranged at intervals along the circumference of the connection position of the top wall 241 and the side wall 242 to improve the exhaust efficiency of the steam. Preferably, the connection position of the top wall 241 and the side wall 242 is in an arc transition or has a certain inclination angle, and the exhaust port 25 is arranged at the connection position of the top wall 241 and the side wall 242. During the overflow of steam, the steam can be radially sprayed into the steamer above the juice receiving tray 2, so that the coverage range of the steam at the beginning of the steam spraying is wider, thereby improving the cooking thermal efficiency.

[0061] The present application does not limit the water replenishment path of the steam chamber 5, and it can adopt any one of the following embodiments:

[0062] Implementation method three: Figure 2 As shown, there is a first water replenishment gap 8 between the bottom of the first water barrier 21 and the bottom wall of the base 1, and there is a second water replenishment gap 9 between the bottom of the second water barrier 22 and the bottom wall of the base 1. That is, when the juice receiving tray 2 is placed on the base 1, there is a clearance fit between the first water barrier 21 and the bottom wall of the base 1, and there is also a clearance fit between the second water barrier 22 and the bottom wall of the base 1, so that the first water replenishment gap 8 is formed below the first water barrier 21, and the second water replenishment gap 9 is formed below the second water barrier 22, and the water below the steam chamber 5 and the air water blocking chamber 4 can be exchanged through the second water replenishment gap 9, and the steam chamber 5 and the water replenishment chamber can be exchanged through the first water replenishment gap 8.

[0063] Embodiment 4: The bottom of the first water barrier 21 abuts against the bottom wall of the base 1 , and a first water replenishment channel is provided at the bottom of the first water barrier 21 ; the bottom of the second water barrier 22 abuts against the bottom wall of the base 1 , and a second water replenishment channel is provided at the bottom of the second water barrier 22 .

[0064] This fourth embodiment does not limit the location of the first water replenishment channel and the second water replenishment channel. In one embodiment, the bottom of the first water barrier 21 abuts against the bottom wall of the base 1 along its circumference, and the first water replenishment channel is a water replenishment hole provided near the bottom of the first water barrier 21. In another embodiment, the bottom of the first water barrier 21 is provided with a plurality of notches with downward openings along its circumference, and the area of ​​the first water barrier 21 without the notch abuts against the bottom wall of the base 1, and the notch constitutes the first water replenishment channel. Similar to the first water replenishment channel, the second water replenishment channel may be a water replenishment hole provided near the bottom of the second water barrier 22, or a plurality of notches may be provided at the bottom of the second water barrier 22 to constitute the second water replenishment channel.

[0065] In one embodiment, the first water replenishment channel and the second water replenishment channel are arranged opposite to each other in the circumferential direction.

[0066] In a preferred embodiment, the first water replenishment channel and the second water replenishment channel are staggered in the circumferential direction to form a circuitous water replenishment path between the first water-blocking rib 21 and the second water-blocking rib 22. Conversely, when the water below the air water-blocking cavity 4 is heated to boil and wants to be discharged, the circuitous water replenishment path can reduce the disturbance of the water below the air water-blocking cavity 4 to the water in the steam cavity 5, thereby reducing the probability of promoting convective heat exchange between the water in the steam cavity 5 and the water in the water replenishment cavity, so that the water in the steam cavity 5 is maintained in a relatively stable state, thereby ensuring the heating efficiency in the steam cavity 5 and thus ensuring the steam generation rate.

[0067] Embodiment five: The bottom of the first water barrier 21 is provided with a plurality of first notches with openings facing downwards along its circumference, and a first water replenishment gap 8 is provided between the area of ​​the first water barrier 21 where the first notch is not provided and the bottom wall of the base 1, that is, the first water barrier 21 has both a first water replenishment channel and a first water replenishment gap 8; the bottom of the second water barrier 22 is provided with a plurality of second notches with openings facing downwards along its circumference, and a second water replenishment gap 9 is provided between the area of ​​the second water barrier 22 where the second notch is not provided and the bottom wall of the base 1, that is, the second water barrier 22 has both a second water replenishment channel and a second water replenishment gap 9.

[0068] Preferably, the first water replenishment channel and the second water replenishment channel in the fifth embodiment are staggeredly arranged along the circumferential direction.

[0069] As a preferred embodiment of the present application, Figure 1 and Figure 2As shown, the juice receiving tray 2 is provided with a third water-isolating rib 23 extending downward and located outside the first water-isolating rib 21, and the third water-isolating rib 23 divides the water replenishing cavity into a replenishing cavity 7 and an air-insulating cavity 6 with a top end closed. The existence of the air-insulating cavity 6 can form an air-insulating layer around the steam cavity 5 at the periphery of the steam cavity 5, which, on the one hand, reduces the heat loss of the water in the steam cavity 5 to the replenishing cavity 7, which helps to improve the heating efficiency in the steam cavity 5, and on the other hand, reduces the temperature rise of the water in the replenishing cavity 7, avoiding the occurrence of the phenomenon that the outer periphery of the base 1 is hot. Therefore, for this embodiment, the inner circle of the steam cavity 5 forms an air insulation layer on the inner side of the steam cavity 5 due to the presence of the air water-blocking cavity 4, which is used to reduce the heat loss of the steam cavity 5. The outer circle of the steam cavity 5 forms an air insulation layer on the outer periphery of the steam cavity 5 due to the presence of the air insulation layer, which is used to reduce the heat loss of the steam cavity 5. The steam cavity 5 is three-dimensionally surrounded by the insulation interlayer formed by the air water-blocking cavity 4 and the air insulation cavity 6, which greatly reduces the heat loss in the steam cavity 5, thereby greatly improving the steam generation efficiency in the steam cavity 5. Experiments have found that compared with the prior art, when cooking with the electric steamer in this embodiment, the time for the water temperature in the steam cavity 5 to reach 98°C can be shortened by about 30 seconds, and the time for the temperature in the steamer above the base 1 to reach 70°C can be shortened by about 35 seconds.

[0070] In this embodiment, the water replenishment path from the water replenishment cavity to the steam cavity 5 can adopt the first water replenishment gap 8 and / or the first water replenishment channel described in any one of the above embodiments 3 to 5. And the water replenishment path from the replenishment cavity 7 to the bottom of the air insulation cavity 6 can adopt any one of the following embodiments:

[0071] Embodiment 1: A third water replenishment gap 10 is provided between the bottom of the third water barrier 23 and the bottom wall of the base 1. That is, when the juice receiving tray 2 is placed on the base 1, a clearance fit is formed between the third water barrier 23 and the bottom wall of the base 1, thereby forming a third water replenishment gap 10 below the third water barrier 23.

[0072] Embodiment 2: The bottom of the third water barrier 23 abuts against the bottom wall of the base 1, and a third water replenishment channel is provided at the bottom of the third water barrier 23. This embodiment 2 does not limit the location of the third water replenishment channel. In one example, the bottom of the third water barrier 23 abuts against the bottom wall of the base 1 along its circumference, and the third water replenishment channel is a water replenishment hole provided near the bottom of the third water barrier. In another example, the bottom of the third water barrier 23 is provided with a plurality of notches with downward openings along its circumference, and the area of ​​the third water barrier 23 without the notch abuts against the bottom wall of the base 1, and the notch constitutes the third water replenishment channel.

[0073] In one example, the first water replenishment channel and the third water replenishment channel are arranged opposite to each other in the circumferential direction.

[0074] In a preferred example, the first water replenishment channel and the third water replenishment channel are staggered in the circumferential direction to form a circuitous water replenishment path between the first water barrier rib 21 and the third water barrier rib 23. Conversely, when the water in the steam chamber 5 is heated to boil and wants to be discharged, the circuitous water replenishment path can reduce the disturbance of the water in the steam chamber 5 to the water below the air water-blocking chamber 4, thereby reducing the probability of promoting convective heat exchange between the water in the steam chamber 5 and the water in the supply chamber 7, so that the water in the steam chamber 5 is maintained in a relatively stable state, thereby ensuring the heating efficiency in the steam chamber 5 and thus ensuring the steam generation rate.

[0075] Embodiment 3: The bottom of the first water barrier 21 is provided with a plurality of first notches with openings facing downwards along its circumference, and a first water replenishment gap 8 is provided between the area of ​​the first water barrier 21 where the first notch is not provided and the bottom wall of the base 1, that is, the first water barrier 21 has both a first water replenishment channel and a first water replenishment gap 8; the bottom of the third water barrier 23 is provided with a plurality of third notches with openings facing downwards along its circumference, and a third water replenishment gap 10 is provided between the area of ​​the third water barrier 23 where the third notch is not provided and the bottom wall of the base 1, that is, the third water barrier 23 has both a third water replenishment channel and a third water replenishment gap 10.

[0076] Preferably, the first water replenishment channel and the third water replenishment channel in this embodiment 3 are staggered in the circumferential direction.

[0077] The present application does not limit the bottom wall of the base 1, and it can adopt any one of the following embodiments:

[0078] Embodiment 6: The bottom wall of the base 1 is a relatively flat structure, so that the base 1 has better functionality. For example, when the steamer and the sauce tray 2 are removed, the base 1 can be used as a cooking pot for hot pot cooking and other operations.

[0079] Embodiment 7: The bottom wall of the base 1 is provided with a water retaining rib extending upward, and the water retaining rib is located outside the first water barrier rib 21. The provision of the water retaining rib can have a certain blocking effect on the convection of water in the steam chamber 5 and the water replenishing chamber, thereby reducing the heat exchange between the steam chamber 5 and the water replenishing chamber, thereby reducing the heat loss in the steam chamber 5, further improving the thermal efficiency in the steam chamber 5, and helping to improve the steam generation rate in the steam chamber 5.

[0080] The water retaining ribs in this embodiment may be arranged at any one of the following embodiments:

[0081] Embodiment 4: The water retaining rib is located on the outside of the first water barrier rib 21 and on the inside of the third water barrier rib 23 .

[0082] Embodiment 5: The water retaining rib is located outside the third water barrier rib 23 .

[0083] Example 6: Figure 4As shown, the water retaining ribs include a first water retaining rib 11 and a second water retaining rib 12. The first water retaining rib 11 is located outside the first water barrier rib 21 and inside the third water barrier rib 23, and the second water retaining rib 12 is located outside the third water barrier rib 23. By providing the first water retaining rib 11 and the second water retaining rib 12, the convection exchange of water in the steam chamber 5 and the water replenishing chamber can be further reduced, thereby helping to reduce the heat loss of water in the steam chamber 5 and ensuring the steam generation efficiency in the steam chamber 5.

[0084] Regardless of Example 4, Example 5 or Example 6: When the first water replenishment gap 8 adopts the type of the above-mentioned embodiment three, the water retaining rib is a circumferentially closed annular rib: When the first water barrier rib 21 adopts the type of the above-mentioned embodiment four, the water retaining rib can be either a circumferentially closed annular rib, or a one-stage or multi-stage (depending on the number of first water replenishment channels) water retaining structure facing the first water replenishment channel, and the extension distance of the water retaining structure along the circumference of the first water barrier rib 21 is greater than the extension distance of the first water replenishment channel along the circumference of the first water barrier rib 21, so as to be able to produce a circumferential blocking effect on the first water replenishment channel.

[0085] Regardless of Embodiment 4, Embodiment 5 or Embodiment 6, the height of the water retaining rib may be any one of the following examples:

[0086] Example 1: The top of the water retaining rib is slightly lower than the upper edge of the first water replenishment gap 8 and / or the first water replenishment channel.

[0087] Example 2: The top of the water retaining bar is higher than the upper edge of the first water replenishment gap 8 and / or the first water replenishment channel to enhance the water retaining bar's blocking effect on water. Preferably, the top of the water retaining bar is 4mm-5mm higher than the upper edge of the first water replenishment gap 8 and / or the first water replenishment channel.

[0088] As a preferred embodiment of the present application, the juice receiving tray 2 is provided with a third water-blocking rib 23 located outside the first water-blocking rib 21, the top end of the third water-blocking rib 23 is fixedly connected to the juice receiving tray 2, and the bottom end is fixedly connected to the first water-blocking rib 21, and the third water-blocking rib 23 and the first water-blocking rib 21 cooperate to form an insulating cavity.

[0089] As an example of the present embodiment, the third water-isolating rib 23 and the first water-isolating rib 21 cooperate to enclose a generally U-shaped insulation cavity with a top opening. The insulation cavity in the present embodiment has a top opening, which is connected to the cooking space in the steamer above the juice receiving tray. Part of the hot steam ejected from the steam cavity 5 can enter the insulation cavity to produce an insulation and heat preservation effect on the steam cavity 5.

[0090] As an example of this embodiment, the third water barrier 23, the juice receiving tray 2 and the first water barrier 21 cooperate to form a closed heat insulation chamber. Furthermore, the heat insulation chamber in this embodiment is a vacuum heat insulation chamber, so that a vacuum heat insulation layer is formed on the outer circle of the steam chamber 5 to reduce the heat loss in the steam chamber 5.

[0091] As a preferred embodiment of the present application, a seal is provided at the bottom of the first water barrier 21, and the first water barrier 21 is sealed against the bottom wall of the base 1 through the seal, and the first water barrier 21 or the seal is provided with a first water replenishment channel. By providing the seal, the convection exchange of water between the steam chamber 5 and the water replenishment chamber during cooking can be further reduced, thereby ensuring the steam generation rate in the steam chamber 5.

[0092] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0093] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0094] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An electric steamer with rapid steam output, comprising a base with a water storage cavity and a juice receiving tray placed on the base in a removable manner, wherein a heating element is provided in the base and a steam exhaust port is provided on the juice receiving tray, characterized in that: The juice collecting tray is provided with a first water-blocking rib extending downward and a second water-blocking rib located inside the first water-blocking rib, the first water-blocking rib divides the water storage chamber into a water replenishing chamber and a heating chamber, the heating element is used to heat the water in the heating chamber to generate steam, the second water-blocking rib is located in the heating area of ​​the heating element, the second water-blocking rib divides the heating chamber into a steam chamber and an air water-blocking chamber, the bottom end of the air water-blocking chamber is open to connect to the steam chamber, and the steam chamber is connected to the exhaust port.

2. The electric steamer with rapid steam output according to claim 1, characterized in that: The heating element comprises a heating plate and a heating tube arranged on the heating plate, and the orthographic projection of the second water-isolating rib toward the heating element is located on the inner side of the heating tube.

3. The electric steamer with rapid steam output according to claim 1, characterized in that: The central area of ​​the juice receiving tray is provided with an upwardly raised boss, and the second water-isolating rib is fixedly connected to the bottom end surface of the boss.

4. The electric steamer with rapid steam output according to claim 1, characterized in that: A first water replenishment gap is provided between the bottom of the first water barrier and the bottom wall of the base, and a second water replenishment gap is provided between the bottom of the second water barrier and the bottom wall of the base; and / or a first water replenishment channel is provided at the bottom of the first water barrier, and a second water replenishment channel is provided at the bottom of the second water barrier, and the first water replenishment channel and the second water replenishment channel are staggered in the circumferential direction.

5. The electric steamer with rapid steam output according to claim 1, characterized in that: The juice receiving tray is provided with a third water barrier extending downward and located outside the first water barrier, and the third water barrier divides the water replenishment cavity into a replenishment cavity and an air insulation cavity with a closed top.

6. The electric steamer with rapid steam output according to claim 5, characterized in that: A first water replenishment gap is provided between the bottom of the first water barrier and the bottom wall of the base, and a third water replenishment gap is provided between the bottom of the third water barrier and the bottom wall of the base; and / or a first water replenishment channel is provided at the bottom of the first water barrier, and a third water replenishment channel is provided at the bottom of the third water barrier, and the first water replenishment channel and the third water replenishment channel are staggered in the circumferential direction.

7. The electric steamer with rapid steam output according to claim 1, characterized in that: The bottom wall of the base is provided with a water retaining rib extending upward, and the water retaining rib is located outside the first water-isolating rib.

8. The electric steamer with rapid steam output according to claim 1, characterized in that: The juice receiving tray is provided with a third water barrier located outside the first water barrier, the top end of the third water barrier is fixedly connected to the juice receiving tray, and the bottom end is fixedly connected to the first water barrier, and the third water barrier cooperates with the first water barrier to form an insulating cavity.

9. The electric steamer with rapid steam output according to claim 1, characterized in that: A sealing member is provided at the bottom of the first water barrier, and the first water barrier is sealed against the bottom wall of the base through the sealing member. The first water barrier or the sealing member is provided with a first water replenishment channel.

10. The electric steamer with rapid steam output according to claim 1, characterized in that: The heating element comprises a heating plate and a heating tube arranged on the heating plate, and the orthographic projection of the steam cavity toward the heating element covers at least a partial area of ​​the heating tube.

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