Electric steamer

Abstract

The utility model relates to an electric steamer which comprises a base, a cooking body, a water pan and a water tank, the base is provided with a steam generating cavity, the cooking body is provided with a cooking cavity and arranged above the base, the water pan is arranged between the base and the cooking body, the water pan is provided with a steam inlet, and the steam inlet is communicated with the steam generating cavity and the cooking cavity; the water tank is communicated with the steam generation cavity through a water control assembly, the water control assembly is used for controlling the water level in the steam generation cavity to be below a preset water level line, and the electric steamer further comprises a first heating piece used for heating water in the steam generation cavity to generate steam and a second heating piece used for heating the steam; the first heating piece is arranged on the bottom wall of the steam generating cavity, and the second heating piece is arranged outside the steam generating cavity and located on the upper half portion of the steam generating cavity. Water is heated through the first heating piece to generate steam, the steam is heated through the second heating piece to form high-temperature steam, and high-temperature cooking can be achieved. The electric steamer is simple in structure and easy to clean.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of kitchen appliances, in particular to an electric steamer. BACKGROUND

[0002] Steam cooking can make food retain nutrients fully, and is one of the common cooking methods in daily life. A steamer is a very common cooking appliance that uses steam to cook food. A traditional steamer heats water in a bottom heater to generate steam to heat food in a cooking cavity. The steam generated in this way has a high saturation degree and a low temperature, and will quickly condense into a water film on the surface of the food after contacting the food, resulting in over-wetting of the food and affecting the taste.

[0003] Using high-temperature steam can effectively improve the taste of food. Currently, high-temperature steam in the industry is generated by heating steam generated by primary heating through secondary heating. There are two types of electric steamers that can generate high-temperature steam. One type separates the secondary heat source and the primary heat source and arranges them in different chambers. The other type combines the secondary heat source and the primary heat source and arranges them in one chamber. The pipe of the separated arrangement scheme is low in efficiency and occupies a large volume space. In order to prevent the secondary heat source from directly heating the water in the water tank, the integrated arrangement scheme needs to set up a separate steam secondary superheating channel on the secondary heat source, which has the problems of complex structure and easy generation of too much scale that is not easy to clean. Therefore, it is necessary to improve the above structure. CONTENT OF THE UTILITY MODEL

[0004] Therefore, it is necessary to provide an electric steamer that is compact in structure, easy to clean, and can generate high-temperature steam.

[0005] An electric steamer includes a base, a cooking main body, a water receiving tray, and a water tank. The base is provided with a steam generating chamber. The cooking main body is provided with a cooking chamber. The cooking main body is arranged above the base. The water receiving tray is arranged between the base and the cooking main body. The water receiving tray is provided with a steam inlet. The steam inlet communicates the steam generating chamber and the cooking chamber. The water tank and the steam generating chamber are connected through a water control assembly. The water control assembly is used to control the water level in the steam generating chamber below a preset water level line. The electric steamer further includes a first heating element for heating water in the steam generating chamber to generate steam and a second heating element for heating steam. The first heating element is arranged on the bottom wall of the steam generating chamber. The second heating element is arranged outside the steam generating chamber and located in the upper half of the steam generating chamber.

[0006] The electric steamer provided in the application can generate steam by heating water in the steam generating cavity through the first heating member. The water level in the steam generating cavity can be controlled below the preset water level line by the water control assembly, so that steam can be generated quickly. The steam is heated by the second heating member during the rising process to form high-temperature steam, and then enters the cooking cavity through the steam inlet to cook food. In this way, high-temperature cooking can be realized. Since the second heating member is arranged outside the steam generating cavity, the heating efficiency of the steam can be improved, and the second heating member can be prevented from being affected by the water in the steam generating cavity. In addition, the second heating member can be prevented from being covered with scale, and the steam generating cavity can be easily cleaned. Furthermore, the first heating member is arranged on the bottom wall of the steam generating cavity, and the second heating member is arranged in the upper half of the steam generating cavity, so that the structure is very compact.

[0007] In one of the embodiments, the second heating member is a second heating pipe, and is arranged in one or more layers along the circumference of the steam generating cavity.

[0008] In this way, the second heating member can emit more heat and has a large heating range, which is beneficial to heat more steam to form high-temperature steam, so that the heating efficiency of the high-temperature steam can be greatly improved.

[0009] In one of the embodiments, the steam generating cavity is provided with a high-temperature steam cavity outside, the second heating member is arranged in the high-temperature steam cavity, the high-temperature steam cavity is provided with an air inlet and an air outlet, the air inlet is connected with the steam generating cavity and the high-temperature steam cavity, and the air outlet is connected with the high-temperature steam cavity and the cooking cavity.

[0010] In this way, the steam generated in the steam generating cavity enters the high-temperature steam cavity through the air inlet, and then is discharged through the air outlet. In the high-temperature steam cavity, the steam can directly contact the second heating member, so that the heating effect of the steam can be improved.

[0011] In one of the embodiments, the side wall of the steam generating cavity comprises a first side wall, a step wall and a second side wall connected in sequence, the lower end of the first side wall is connected with the bottom wall of the steam generating cavity, the step wall is connected with the upper end of the first side wall and is arranged to extend inward along the radial direction of the steam generating cavity, and the second side wall is connected with the inner edge of the step wall and is arranged to extend upward. The step wall and the second side wall constitute part of the side wall of the high-temperature steam cavity.

[0012] In this way, the step wall can change the flow path of the steam in the steam generating cavity close to the first side wall, prolong the residence time of the steam in the steam generating cavity, and make the second heating member closer to the central axis of the steam generating cavity, so that the second heating member can heat the steam more efficiently.

[0013] In one of the embodiments, the air inlet is arranged on the step wall and / or the second side wall.

[0014] In this way, steam is easy to enter the high-temperature steam chamber through the air inlet, thereby facilitating the second heating member to heat the steam.

[0015] In one of the embodiments, the base is further provided with a second heat-conducting cover, and the second heat-conducting cover and the steam generation chamber side wall enclose the high-temperature steam chamber.

[0016] In this way, the second heat-conducting cover can protect the second heating member from being touched by the user and causing burns.

[0017] In one of the embodiments, the air outlet is arranged on the top wall of the second heat-conducting cover, and the air outlet is communicated with the high-temperature steam chamber and the cooking chamber through the steam inlet.

[0018] In this way, after the high-temperature steam flows out of the air outlet, it can directly enter the cooking chamber from the steam inlet, so that the heat loss of the high-temperature steam is small.

[0019] In one of the embodiments, the second heat-conducting cover and the steam generation chamber side wall are in an integrated structure, or the second heat-conducting cover and the steam generation chamber side wall are in a split structure.

[0020] In this way, the integrated structure is simpler in structure, and the split structure facilitates the installation of the second heating member in the high-temperature steam chamber.

[0021] In one of the embodiments, the bottom wall of the water pan is provided with an annular partition plate, the partition plate, the bottom wall of the water pan, and the steam generation chamber side wall enclose the high-temperature steam chamber, and the steam inlet is an air outlet of the high-temperature steam chamber.

[0022] In this way, the structure is very simple.

[0023] In one of the embodiments, the air inlet is higher than the preset water level.

[0024] In this way, water can be prevented from entering the high-temperature steam chamber, ensuring that the second heating member only heats steam and not water, thereby ensuring the heating effect of the second heating member on the steam.

[0025] In one of the embodiments, the first heating member includes a first heating pipe, a heat-conducting disc, and a first heat-conducting cover, the heat-conducting disc is arranged above the first heating pipe, the first heat-conducting cover is arranged as a cover body with an opening facing downward, the first heat-conducting cover is arranged on the upper side of the heat-conducting disc, and the top surface of the first heat-conducting cover forms at least part of the bottom wall of the steam generation chamber or is arranged below the bottom wall of the steam generation chamber.

[0026] Thus, the heat-conducting disc plays a role of uniform heat, so that the heat generated by the first heating pipe can be uniformly dispersed to the bottom of the steam generating cavity, thereby facilitating efficient heating of water in the steam generating cavity to form steam. The first heat-conducting cover can play a role of protecting the heat-conducting disc and the first heating pipe. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0028] Figure 1 It is a perspective view of an electric steamer according to an embodiment of the present application;

[0029] Figure 2 It is a sectional view of an electric steamer according to an embodiment of the present application;

[0030] Figure 3 It is a semi-sectional perspective view of an electric steamer according to an embodiment of the present application;

[0031] Figure 4 It is a semi-sectional perspective view of a base and a water receiving tray according to an embodiment of the present application;

[0032] Figure 5 It is a sectional view of a base and a water receiving tray according to an embodiment of the present application.

[0033] Reference signs: 10, base; 11, steam generating cavity; 111, first side wall; 112, stepped wall; 113, second side wall; 12, annular plate; 20, cooking main body; 21, cooking cavity; 22, pot cover; 23, steaming rack; 30, water receiving tray; 31, steam inlet; 32, partition plate; 40, water tank; 50, first heating member; 51, first heating pipe; 52, heat-conducting disc; 53, first heat-conducting cover; 60, second heating member; 62, second heat-conducting cover; 621, air inlet; 622, air outlet; 623, high-temperature steam cavity; 70, water control assembly. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below in combination with the drawings. In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0035] It is to be understood that when a component is referred to as being "on" or "connected to" another component, it can be directly on or connected to the other component or intervening components can be present. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or intervening components can be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar terms as used in this description are merely used for convenience and are not intended to be limiting as to the position of the components.

[0036] In addition, the terms "first", "second", etc. are used herein only to describe different instances, and do not imply a relative importance or a quantity limitation. Thus, the features with the "first", "second", etc. can include at least one of the features. In the description of the present application, the meaning of "a plurality" is at least two, for example, two, three, etc., unless otherwise specifically defined.

[0037] In the present application, unless otherwise specifically defined and limited, the "on", "under", "above", and "over" of a first feature to a second feature can mean that the first feature is in direct contact with the second feature, or the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, the "on", "above", and "over" of a first feature to a second feature can mean that the first feature is directly above or obliquely above the second feature, or only means that the first feature is horizontally higher than the second feature. The "under", "below", and "underneath" of a first feature to a second feature can mean that the first feature is directly below or obliquely below the second feature, or only means that the first feature is horizontally lower than the second feature.

[0038] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. The use of the terms "and / or" in the description of the present application includes any and all combinations of one or more of the associated listed items.

[0039] See Figures 1 to 5The application provides an electric steamer, which comprises a base 10, a cooking main body 20, a water receiving tray 30 and a water tank 40. The base 10 is provided with a steam generating cavity 11. The cooking main body 20 is provided with a cooking cavity 21. The cooking main body 20 is arranged above the base 10. The water receiving tray 30 is arranged between the base 10 and the cooking main body 20. The water receiving tray 30 is provided with a steam inlet 31. The steam inlet 31 is communicated with the steam generating cavity 11 and the cooking cavity 21. The water receiving tray 30 is used for receiving condensed water generated in the cooking cavity 21, so as to avoid the condensed water from dropping into the steam generating cavity 11 and affecting the water temperature of the steam generating cavity 11. The water tank 40 and the steam generating cavity 11 are communicated through a water control assembly 70. The water control assembly 70 is used for controlling the water level in the steam generating cavity 11 to be below a preset water level line. It can be understood that "below the preset water level line A" includes the preset water level line A, that is, the water in the steam generating cavity 11 can be located at the height position of the preset water level line A or below the preset water level line A. The electric steamer further comprises a first heating piece 50 used for heating water in the steam generating cavity 11 to generate steam and a second heating piece 60 used for heating steam. The first heating piece 50 is arranged on the bottom wall of the steam generating cavity 11. The second heating piece 60 is arranged outside the steam generating cavity 11 and located at the upper half of the steam generating cavity 11. In this way, the first heating piece 50 heats the water in the steam generating cavity 11 to generate steam. Since the water control assembly 70 is arranged, the water level in the steam generating cavity 11 can be controlled to be below the preset water level line A, so that steam can be quickly generated. The steam is heated by the second heating piece 60 during the rising process to form high-temperature steam. Then the high-temperature steam enters the cooking cavity 21 through the steam inlet 31 to cook food. In this way, high-temperature cooking can be realized. Since the second heating piece 60 is arranged outside the steam generating cavity 11, the second heating piece 60 can avoid heating the water in the steam generating cavity 11 and affecting the heating efficiency of the steam. Meanwhile, the second heating piece 60 can avoid scale on the surface of the second heating piece 60, and the inside of the steam generating cavity 11 is easy to clean. In addition, since the first heating piece 50 is arranged on the bottom wall of the steam generating cavity 11 and the second heating piece 60 is located at the upper half of the steam generating cavity 11, the structure is very compact.

[0040] In the embodiment, the cooking main body 20 comprises a pot cover 22. The inside of the pot cover 22 forms the cooking cavity 21. A steaming rack 23 can be arranged in the cooking cavity 21 and used for supporting food to be steamed. In other embodiments, the cooking main body 20 can further comprise a steaming cage (not shown). The inside of the steaming cage forms the cooking cavity 21 or the steaming cage and the pot cover 22 enclose the cooking cavity 21. The application is not limited in this regard. As long as the cooking main body 20 is provided with the cooking cavity 21 capable of containing food, the application is applicable.

[0041] Further, the second heating member 60 is a second heating pipe, and the second heating member 60 is arranged in one or more layers along the circumference of the steam generation cavity 11. In this way, the second heating member 60 can emit more heat and has a large heating range, which is conducive to heating more steam to form high-temperature steam, thereby greatly improving the heating efficiency of the high-temperature steam. In the present embodiment, the second heating member 60 is in a spiral shape, that is, the second heating member 60 is arranged in multiple layers along the circumference of the steam generation cavity 11, so that the heating effect on the steam is better. However, it is not limited thereto, and in other embodiments, the second heating member 60 can also be arranged in a ring shape, which is equivalent to the second heating member 60 being arranged in one layer along the circumference of the steam generation cavity 11.

[0042] Further, the steam generation cavity 11 is provided with a high-temperature steam cavity 623, the second heating member 60 is arranged in the high-temperature steam cavity 623, the high-temperature steam cavity 623 is provided with an air inlet 621 and an air outlet 622, the air inlet 621 is connected to the steam generation cavity 11 and the high-temperature steam cavity 623, and the air outlet 622 is connected to the high-temperature steam cavity 623 and the cooking cavity 21. In this way, the steam generated in the steam generation cavity 11 enters the high-temperature steam cavity 623 through the air inlet 621 and then is discharged through the air outlet 622. In the high-temperature steam cavity 623, the steam can directly contact the second heating member 60, thereby improving the heating effect on the steam.

[0043] Further, the side wall of the steam generation cavity 11 includes a first side wall 111, a stepped wall 112 and a second side wall 113 connected in sequence, the lower end of the first side wall 111 is connected to the bottom wall of the steam generation cavity 11, the stepped wall 112 is connected to the upper end of the first side wall 111 and is arranged to extend inward along the radial direction of the steam generation cavity 11, and the second side wall 113 is connected to the inner edge of the stepped wall 112 and is arranged to extend upward. The stepped wall 112 and the second side wall 113 constitute part of the side wall of the high-temperature steam cavity 623. In this way, by arranging the stepped wall 112, the flow path of the steam in the steam generation cavity 11 close to the first side wall 111 can be changed, the residence time of the steam in the steam generation cavity is prolonged, and the second heating member 60 is closer to the central axis of the steam generation cavity 11, so that the second heating member 60 can more efficiently heat the steam.

[0044] Further, the air inlet 621 is arranged on the stepped wall 112 and / or the second side wall 113. In this way, the steam is easy to enter the high-temperature steam cavity 623 through the air inlet 621, thereby facilitating the second heating member 60 to heat the steam.

[0045] Further, the air inlet 621 is higher than the preset water level line A. In this way, water can be prevented from entering the high-temperature steam cavity 623, so as to ensure that the second heating member 60 only heats the steam and does not heat the water, thereby ensuring the heating effect of the second heating member 60 on the steam.

[0046] In this embodiment, both the stepped wall 112 and the second side wall 113 are provided with air inlets 621, which facilitates more steam entering the high-temperature steam chamber 623 and contacting the second heating element 60. However, this is not a limitation; in other embodiments, the air inlet 621 may be provided only on the stepped wall 112 or only on the second side wall 113.

[0047] The air intake 621 can be circular, rectangular, square, hexagonal, elliptical or any other shape, and this application does not limit it.

[0048] like Figure 2 As shown, the base 10 is also provided with a second heat-conducting cover 62. The second heat-conducting cover 62 and the side wall of the steam generating chamber 11 form a high-temperature steam chamber 623. In this way, the second heat-conducting cover 62 can protect the second heating element 60 and prevent the user from being burned when touching the second heating element 60.

[0049] Furthermore, the air outlet 622 is located on the top wall of the second heat-conducting cover 62, and the air outlet 622 is connected to the high-temperature steam chamber 623 and the cooking chamber 21 through the steam inlet 31. In this way, the high-temperature steam flowing out from the air outlet 622 can directly enter the cooking chamber 21 through the steam inlet 31, resulting in minimal heat loss from the high-temperature steam. In this embodiment, the steam inlet 31 is located directly above the air outlet 622, allowing the high-temperature steam to enter the cooking chamber 21 more smoothly.

[0050] In this embodiment, the air outlet 622 is circular, but it is not limited to this. In other embodiments, the air outlet 622 may also be elongated, square, hexagonal, elliptical or other arbitrary shapes. This application does not limit this.

[0051] In this embodiment, the steam inlet 31 is also circular, but it is not limited thereto. In other embodiments, the steam inlet 31 may also be elongated, square, hexagonal, elliptical or other arbitrary shapes. This application does not limit this.

[0052] Furthermore, the second heat-conducting cover 62 and the sidewall of the steam generating chamber 11 are an integral structure. It can be understood that "integral structure" refers to a structure connected as one unit, specifically through welding, bonding, threaded connections, etc. This simplifies the structure. However, it is not limited to this; in other embodiments, the second heat-conducting cover 62 and the sidewall of the steam generating chamber 11 can also be separate structures. Furthermore, a sealing structure can be provided between the second heat-conducting cover 62 and the sidewall of the steam generating chamber 11 to prevent leakage of high-temperature steam at their connection point.

[0053] Further, the bottom wall of the water tray 30 is provided with an annular partition plate 32, the partition plate 32 is arranged outside the second heat-conducting cover 62, and the steam inlet 31 is located inside the partition plate 32, so that the steam leakage between the top wall of the second heat-conducting cover 62 and the bottom wall of the water tray 30 can be avoided, and the high-temperature steam entering the cooking cavity 21 through the steam inlet 31 is ensured.

[0054] In addition, in other embodiments, the second heat-conducting cover 62 can also not be provided, and the bottom wall of the water tray 30 is provided with an annular partition plate 32, the partition plate 32, the bottom wall of the water tray 30, and the side wall of the steam generation cavity 11 surround the high-temperature steam cavity 623, which can be surrounded by the partition plate 32, the bottom wall of the water tray 30, the stepped wall 112, and the second side wall 113. Moreover, the steam inlet 31 is the gas outlet 622 of the high-temperature steam cavity 623, so that the structure is simpler.

[0055] Please refer to Figures 2 to 4 The first heating member 50 is arranged on the bottom wall of the steam generation cavity 11, specifically, the first heating member 50 includes a first heating pipe 51, a heat-conducting disc 52, and a first heat-conducting cover 53, the heat-conducting disc 52 is arranged above the first heating pipe 51, the first heat-conducting cover 53 is arranged as a cover body with an opening facing downward, the first heat-conducting cover 53 is arranged on the upper side of the heat-conducting disc 52, and the top surface of the first heat-conducting cover 53 forms at least part of the bottom wall of the steam generation cavity 11 or is arranged below the bottom wall of the steam generation cavity 11. In this way, the heat-conducting disc 52 plays a role in uniform heat, so that the heat generated by the first heating pipe 51 can be uniformly dispersed to the bottom of the steam generation cavity 11, thereby facilitating efficient heating of water in the steam generation cavity 11 to form steam. The first heat-conducting cover 53 can play a role in protecting the heat-conducting disc 52 and the first heating pipe 51.

[0056] The height position of the preset water level line A needs to be reasonably set, and if the preset water level line A is too high, the steam generation speed will be slow, and if the preset water level line A is too low, dry burning will easily occur. Please refer to Figure 5 In an embodiment, the distance between the preset water level line A and the bottom wall of the steam generation cavity 11 is H1, the distance between the highest point of the second heating member 60 and the highest point of the first heating pipe 51 is H2, and 0.2≤H1 / H2≤0.3. In this way, the height position of the preset water level line A will not be too high or too low, so that the steam can be quickly generated, and the occurrence of dry burning is reduced.

[0057] Further, the orthogonal projection of the second heating member 60 on a horizontal plane is a circular ring, and the outer diameter is φ2; the orthogonal projection of the heat conduction disc 52 on a horizontal plane is a circle, and the diameter is φ1, 0.7φ1≤φ2≤1.3φ1. If φ2 / φ1 is too small, the inner space of the second heating member 60 is small, which leads to that the inner space of the second side wall 113 is small, so that the steam generating cavity 11 is not easy to clean; if φ2 / φ1 is too large, the inner space of the second heating member 60 is large, which easily leads to that the second heating member 60 cannot effectively heat the steam, so that the amount of high-temperature steam formed is small. In the embodiment, 0.7φ1≤φ2≤1.3φ1, that is, 0.7≤φ2 / φ1≤1.3, in this way, φ2 / φ1 is moderate, so that the inner space of the second heating member 60 is appropriate, which is convenient for cleaning the steam generating cavity 11, and can ensure that the second heating member 60 efficiently heats the steam, so that the amount of high-temperature steam is large.

[0058] In the embodiment, the orthogonal projection of the second heating member 60 on a horizontal plane is a circular ring, but is not limited thereto, in other embodiments, the orthogonal projection of the second heating member 60 on a horizontal plane can also be an elliptical ring, a square ring, a hexagonal ring, or other shapes, which are not limited by the present application. In the embodiment, the orthogonal projection of the heat conduction disc 52 on a horizontal plane is a circle, but is not limited thereto, in other embodiments, the orthogonal projection of the heat conduction disc 52 on a horizontal plane can also be a square, an ellipse, a hexagon, an octagon, or other shapes, which are not limited by the present application.

[0059] Further, the orthogonal projection area of the heat conduction disc 52 on a horizontal plane is S1, the orthogonal projection area of the second heating member 60 on a horizontal plane is S2, 0.5≤S2 / S1≤0.8. If S2 / S1 is too small, the inner space of the second heating member 60 is small, which leads to that the inner space of the second side wall 113 is small, so that the steam generating cavity 11 is not easy to clean; if S2 / S1 is too large, the inner space of the second heating member 60 is large, which easily leads to that the second heating member 60 cannot effectively heat the steam, so that the amount of high-temperature steam formed is small. In the embodiment, 0.5≤S2 / S1≤0.8, in this way, S2 / S1 is moderate, so that the inner space of the second heating member 60 is appropriate, which is convenient for cleaning the steam generating cavity 11, and can ensure that the second heating member 60 efficiently heats the steam, so that the amount of high-temperature steam is large.

[0060] In the embodiment, the water tank 40 is arranged in the base 10. Specifically, the base 10 is provided with a cavity, and the cavity is provided with an annular plate 12. The annular plate 12 divides the cavity into the water tank 40 and the steam generation cavity 11. The water tank 40 is annular and surrounds the outside of the steam generation cavity 11. In the embodiment, the annular plate 12 forms part of the side wall of the steam generation cavity 11 and part of the side wall of the second heat-conducting cover 62, so as to avoid water in the water tank 40 from entering the high-temperature steam cavity 623, thereby avoiding the second heating element 60 from being in contact with water and consuming part of the heat. However, the water tank 40 can also be arranged outside the base 10 in other embodiments. In the embodiment, the water tank 40 is integrally formed with the base 10, but the water tank 40 can also be arranged independently of the base 10 in other embodiments, and the water tank 40 can be detachably arranged in the base 10. The present application does not limit this, as long as the water tank 40 can supply water to the steam generation cavity 11.

[0061] In the embodiment, the bottom wall of the steam generation cavity 11 is lower than the bottom wall of the water tank 40, so as to facilitate the water in the water tank 40 to flow into the steam generation cavity 11. Further, the water control assembly 70 is arranged as a float valve. The float valve is lifted and lowered by the buoyancy of water, so as to realize the on-off control of the water tank 40 and the steam generation cavity 11. Specifically, the float valve is arranged at the water outlet of the water tank 40. When the water level in the steam generation cavity 11 falls below the preset water level line A, the float valve is lowered to a position to open the water outlet, so that the water tank 40 and the steam generation cavity 11 are communicated, and thus the water tank 40 can supply water to the steam generation cavity 11, so as to raise the water level in the steam generation cavity 11. When the water level in the steam generation cavity 11 rises above the water level line, the float valve is raised to a position to close the water outlet, so that the water tank 40 and the steam generation cavity 11 are cut off, and thus the water tank 40 cannot supply water to the steam generation cavity 11. The float valve control mode is simple, and can keep the water level in the steam generation cavity 11 below the preset water level line A. The water control assembly 70 can also be a water control assembly 70 of other structures, as long as it can realize water level control and keep the water level in the steam generation cavity 11 below the preset water level line A.

[0062] Any combination of the technical features of the above-described embodiments can be made. In order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the present application.

[0063] The above-described embodiments are merely illustrative of several embodiments of the present application, which are described in more detail and in a specific manner, but should not be construed as limiting the scope of the patent application. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. An electric steamer, comprising a base (10), a cooking body (20), a water tray (30), and a water tank (40), wherein the base (10) is provided with a steam generating chamber (11), the cooking body (20) is provided with a cooking chamber (21), the cooking body (20) is located above the base (10), the water tray (30) is located between the base (10) and the cooking body (20), the water tray (30) is provided with a steam inlet (31), the steam inlet (31) connecting the steam generating chamber (11) and the cooking chamber (21), The water tank (40) and the steam generating chamber (11) are connected by a water control assembly (70), which is used to control the water level in the steam generating chamber (11) below a preset water level line. Its features are, The electric steamer also includes a first heating element (50) for heating water in the steam generating chamber (11) to generate steam and a second heating element (60) for heating steam. The first heating element (50) is disposed on the bottom wall of the steam generating chamber (11), and the second heating element (60) is disposed outside the steam generating chamber (11) and located in the upper half of the steam generating chamber (11).

2. The electric steamer according to claim 1, characterized in that, The second heating element (60) is a second heating tube, and is arranged in one or more layers around the circumference of the steam generating chamber (11).

3. The electric steamer according to claim 1, characterized in that, A high-temperature steam chamber (623) is provided outside the steam generating chamber (11), and the second heating element (60) is provided inside the high-temperature steam chamber (623). The high-temperature steam chamber (623) is provided with an air inlet (621) and an air outlet (622). The air inlet (621) connects the steam generating chamber (11) and the high-temperature steam chamber (623), and the air outlet (622) connects the high-temperature steam chamber (623) and the cooking chamber (21).

4. The electric steamer according to claim 3, characterized in that, The sidewall of the steam generating chamber (11) includes a first sidewall (111), a stepped wall (112), and a second sidewall (113) connected in sequence. The lower end of the first sidewall (111) is connected to the bottom wall of the steam generating chamber (11). The stepped wall (112) is connected to the upper end of the first sidewall (111) and extends radially inward along the steam generating chamber (11). The second sidewall (113) is connected to the inner edge of the stepped wall (112) and extends upward. The stepped wall (112) and the second sidewall (113) constitute part of the sidewall of the high-temperature steam chamber (623).

5. The electric steamer according to claim 4, characterized in that, The air inlet (621) is located on the stepped wall (112) and / or the second side wall (113).

6. The electric steamer according to claim 3, characterized in that, The base (10) is also provided with a second heat-conducting cover (62), and the second heat-conducting cover (62) and the side wall of the steam generating chamber (11) enclose the high-temperature steam chamber (623).

7. The electric steamer according to claim 6, characterized in that, The air outlet (622) is located on the top wall of the second heat-conducting cover (62), and the air outlet (622) is connected to the high-temperature steam chamber (623) and the cooking chamber (21) through the steam inlet (31).

8. The electric steamer according to claim 6, characterized in that, The second heat-conducting cover (62) and the sidewall of the steam generating chamber (11) are an integral structure. Alternatively, the second heat-conducting cover (62) and the sidewall of the steam generating chamber (11) can be a separate structure.

9. The electric steamer according to claim 3, characterized in that, The bottom wall of the water receiving tray (30) is provided with an annular partition (32), and the partition (32), the bottom wall of the water receiving tray (30), and the side wall of the steam generating chamber (11) enclose the high-temperature steam chamber (623). The steam inlet (31) is the outlet (622) of the high-temperature steam chamber (623).

10. The electric steamer according to claim 3, characterized in that, The air inlet (621) is higher than the preset water level line.

11. The electric steamer according to claim 1, characterized in that, The first heating element (50) includes a first heating tube (51), a heat-conducting plate (52), and a first heat-conducting cover (53). The heat-conducting plate (52) is located above the first heating tube (51). The first heat-conducting cover (53) is a cover with its opening facing downwards. The first heat-conducting cover (53) covers the upper side of the heat-conducting plate (52). The top surface of the first heat-conducting cover (53) forms at least part of the bottom wall of the steam generating chamber (11) or is located below the bottom wall of the steam generating chamber (11).

Images