Electric steamer

Abstract

The utility model relates to an electric steamer which comprises a base, a cooking body, a water pan, a water tank and a water control assembly, 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 communicates with the steam generating cavity and the cooking cavity; the water tank is communicated with the steam generation cavity, and the water control assembly is arranged between the water tank and the steam generation cavity and used for controlling the water level in the steam generation cavity to be below a preset water line; the electric steamer further comprises a first heating piece used for generating steam and a second heating piece used for heating the steam, the first heating piece is arranged at the bottom of the steam generating cavity, the second heating piece extends into the steam generating cavity from the bottom of the steam generating cavity, and at least part of the second heating piece is higher than a preset water level. According to the electric steamer, high-temperature cooking can be achieved, the structure is very compact, and miniaturization design of the electric steamer is facilitated.

Description

Technical Field

[0001] This application relates to the field of kitchen appliance technology, and in particular to an electric steamer. Background Technology

[0002] Steam cooking helps retain the nutrients in food and is a common cooking method in daily life. Electric steamers are very common cooking appliances that utilize steam. Traditional electric steamers heat water with a bottom heater to generate steam, which then heats the food inside the cooking chamber. This method produces steam with high saturation and low temperature. When the steam comes into contact with the food, it quickly condenses into a water film on the surface, making the food too wet and affecting its taste.

[0003] High-temperature steam can effectively improve the taste of food. Currently, high-temperature steam in the industry is generated by heating the steam produced by the primary heating process through secondary heating. Electric steamers that can currently produce high-temperature steam typically have complex structures for both primary and secondary heating, occupying a large volume of space, resulting in a very large overall size. Utility Model Content

[0004] Therefore, it is necessary to provide an electric steamer with a compact structure that is conducive to miniaturization design.

[0005] An electric steamer includes a base, a cooking body, a water tray, a water tank, and a water control component. The base has a steam generating chamber, the cooking body has a cooking chamber, and the cooking body is positioned above the base. The water tray is located between the base and the cooking body and has a steam inlet that connects the steam generating chamber and the cooking chamber. The water tank is connected to the steam generating chamber. The water control component is located between the water tank and the steam generating chamber and is used to control the water level in the steam generating chamber below a preset water level line. The electric steamer also includes a first heating element for generating steam and a second heating element for heating steam. The first heating element is located at the bottom of the steam generating chamber, and the second heating element extends into the steam generating chamber from the bottom of the steam generating chamber, with at least a portion of the second heating element above the preset water level line.

[0006] The electric steamer provided in this application generates steam by heating water in the steam generating chamber using a first heating element. Because a water control component is installed between the water tank and the steam generating chamber, the water level in the steam generating chamber can be controlled below a preset water level line, thus enabling rapid steam generation. During its ascent, the steam is heated by the portion of the second heating element located above the preset water level line, forming high-temperature steam. This high-temperature steam then enters the cooking chamber through the steam inlet to cook food, achieving high-temperature cooking. Both the first and second heating elements of this electric steamer are located at the bottom of the steam generating chamber, resulting in a very compact structure that facilitates miniaturization of the steamer and allows for easy routing of electrical wires inside the base.

[0007] In one embodiment, the second heating element includes a second heating tube and a second heat-conducting cover, the second heat-conducting cover being a cover with an opening facing downwards, and the second heat-conducting cover being disposed on the outside of the second heating tube.

[0008] Thus, the second heat-conducting cover separates the second heating element from the water in the steam generating chamber, preventing the second heating element from heating the water and affecting its steam heating efficiency. Simultaneously, since the second heating element does not come into contact with water, scale formation on its surface is prevented, thus maintaining its heating efficiency. Furthermore, cleaning is very convenient; only the surface of the second heat-conducting cover needs to be cleaned.

[0009] In one embodiment, the second heat-conducting cover is integrally formed with the bottom wall of the steam generating chamber, or the lower end of the second heat-conducting cover is sealed to the bottom wall of the steam generating chamber.

[0010] The second heat-conducting cover and the bottom wall of the steam generating chamber are integrally formed, resulting in a simple structure that is easy to manufacture, and eliminating the need for a sealing structure between them. The lower end of the second heat-conducting cover is sealed to the bottom wall of the steam generating chamber, thus allowing for separate molding of the two components. These components can be manufactured and assembled independently, improving production efficiency. Furthermore, the second heat-conducting cover and the bottom wall of the steam generating chamber can be made of different materials, offering greater manufacturing flexibility.

[0011] In one embodiment, the second heating tube includes a heating body, a connecting section, and a terminal block. The heating body is arranged in one or more layers around the circumference of the second heat-conducting cover, and the heating body is at least partially located above the preset water level line. The terminal block is located below the bottom wall of the steam generating chamber, and the connecting section connects the heating body and the terminal block.

[0012] In this way, the heating body is arranged in one or more layers around the circumference of the second heat-conducting cover, which has a large heating range and helps to heat more steam to form high-temperature steam, thereby greatly improving the heating efficiency of high-temperature steam.

[0013] In one embodiment, the distance between the preset water level line and the bottom wall of the steam generating chamber is H1, and the distance between the highest point of the second heat-conducting cover and the bottom wall of the steam generating chamber is H2, where 0.2 ≤ H1 / H2 ≤ 0.3.

[0014] In this way, the height of the preset water level line is neither too high nor too low, which ensures that steam is generated quickly and that the heating efficiency of the second heating element is not greatly affected, while also reducing the occurrence of dry burning.

[0015] In one embodiment, the outer contour of the bottom wall of the steam generating chamber is circular, the outer diameter of the bottom wall of the steam generating chamber is φ1, the second heat-conducting cover is cylindrical, the outer diameter of the second heat-conducting cover is φ2, and 20mm≤0.5(φ1-φ2)≤40mm.

[0016] This ensures that the distance between the outer wall of the second heat-conducting cover and the peripheral edge of the first heat-conducting plate is appropriate, which guarantees that the amount of low-temperature steam generated by the first heating element heating water is sufficient, and that the second heating element can heat the low-temperature steam to a sufficiently high temperature. This ensures both the amount of high-temperature steam entering the cooking chamber and the temperature of the high-temperature steam, thereby ensuring the effect of high-temperature cooking of food.

[0017] In one embodiment, the second heat-conducting shroud coincides with the central axis of the steam generating chamber.

[0018] Thus, in the circumferential direction of the second heat-conducting cover, the distance between the outer wall of the second heat-conducting cover and the inner wall of the steam generating chamber is equal, which is beneficial for the second heating element to heat the steam to form high-temperature steam and is easy to clean.

[0019] In one embodiment, the side wall of the second heat-conducting cover is provided with an air inlet, and the top wall of the second heat-conducting cover is provided with an air outlet, the lowest point of the air inlet being higher than the preset water level line.

[0020] In this way, steam can enter the second heat-conducting cover through the air inlet, allowing the steam to come into contact with the second heating element, thus improving the heating effect of the steam. The lowest point of the air inlet is higher than the preset water level line, ensuring that water does not enter the second heat-conducting cover. Therefore, the second heating element only heats the steam and not the water, thereby ensuring the heating efficiency of the second heating element for the steam. In one embodiment, the bottom of the water receiving tray is provided with an annular baffle that extends into the steam generating chamber and surrounds the outer periphery of the second heating element. The steam inlet is located inside the baffle.

[0021] In this way, the baffle can prevent steam from spreading outward and leaking, thereby guiding steam from the steam inlet into the cooking chamber and ensuring the effective use of steam.

[0022] In one embodiment, the first heating element includes a first heating tube, a first heat-conducting plate, and a first heat-conducting cover. The first heat-conducting plate is annular, the first heating tube is disposed below the first heat-conducting plate, and the first heat-conducting cover is configured as a cover with an opening facing downward. The first heat-conducting cover is disposed on the upper side of the first heat-conducting plate, and the top surface of the first heat-conducting cover forms at least part of the bottom wall of the steam generating chamber or is disposed below the bottom wall of the steam generating chamber.

[0023] In this way, the first heat-conducting plate plays a role in distributing heat evenly, allowing the heat generated by the first heating tube to be evenly distributed to the bottom of the steam generation chamber, thereby facilitating the efficient heating of the water in the steam generation chamber to form steam. The first heat-conducting cover can protect the first heat-conducting plate and the first heating tube. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a simplified structural diagram of an electric steamer according to an embodiment of this application;

[0026] Figure 2 This is a perspective view of an electric steamer according to an embodiment of this application;

[0027] Figure 3 for Figure 2 A 3D view of the electric steamer shown;

[0028] Figure 4 for Figure 3 The diagram shows a partial structural schematic of the electric steamer.

[0029] Reference numerals: 10, base; 11, steam generating chamber; 12, water tank; 20, cooking body; 21, cooking cavity; 22, pot lid; 23, steaming rack; 24, steamer basket; 30, drip tray; 31, steam inlet; 32, partition; 40, water control assembly; 60, first heating element; 61, first heating tube; 62, first heat-conducting plate; 63, first heat-conducting cover; 70, second heating element; 71, second heating tube; 711, heating body; 712, connecting section; 713, wiring terminal; 72, second heat-conducting cover. Detailed Implementation

[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0031] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] Unless otherwise defined, all technical and scientific terms used in this 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 this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0035] Please see Figures 1 to 4This application provides an electric steamer, including a base 10, a cooking body 20, a water tray 30, a water tank 12, and a water control component 40. The base 10 has a steam generating chamber 11, and the cooking body 20 has 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, and the water tray 30 has a steam inlet 31 that connects the steam generating chamber 11 and the cooking chamber 21. The water tank 12 is connected to the steam generating chamber 11, and the water control component 40 is located between the water tank 12 and the steam generating chamber 11. The water control component 40 is used to control the water level in the steam generating chamber 11 to be below a preset water level line A. It is understood that "below the preset water level line A" includes "the preset water level line A," that is, the water level in the steam generating chamber 11 can be at the height of the preset water level line A or below the preset water level line A.

[0036] The electric steamer also includes a first heating element 60 for generating steam and a second heating element 70 for heating the steam. The first heating element 60 is located at the bottom of the steam generating chamber 11, and the second heating element 70 extends into the steam generating chamber 11 from the bottom, with at least a portion of the second heating element 70 above the preset water level line A. Thus, the first heating element 60 heats the water in the steam generating chamber 11 to generate steam. Because a water control component 40 is provided between the water tank 12 and the steam generating chamber 11, the water level in the steam generating chamber 11 can be controlled below the preset water level line A, thereby enabling rapid steam generation. During its ascent, the steam is heated by the portion of the second heating element 70 located above the preset water level line A, forming high-temperature steam. This high-temperature steam then enters the cooking chamber 21 through the steam inlet 31 to cook food, achieving high-temperature cooking. The first and second heating elements of this electric steamer are both located at the bottom of the steam generating chamber, resulting in a very compact structure that facilitates miniaturization of the steamer and allows for easier wiring within the base 10.

[0037] In this embodiment, the cooking body 20 includes a pot lid 22, and a cooking cavity 21 is formed inside the pot lid 22. A steaming rack 23 can be installed inside the cooking cavity 21 to support the food being steamed. In addition, in other embodiments, the cooking body 20 may also include a steamer 24, with the cooking cavity 21 formed inside the steamer 24, or the steamer 24 and the pot lid 22 enclosing the cooking cavity 21. This application does not limit this, as long as the cooking body 20 has a cooking cavity 21 that can accommodate food.

[0038] Furthermore, the first heating element 60 includes a first heating tube 61, a first heat-conducting plate 62, and a first heat-conducting cover 63. The first heat-conducting plate 62 is annular, the first heating tube 61 is located below the first heat-conducting plate 62, and the first heat-conducting cover 63 is a cover with its opening facing downwards, covering the upper side of the first heat-conducting plate 62. The top surface of the first heat-conducting cover 63 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. In this way, the first heat-conducting plate 62 plays a role in uniformly distributing heat, allowing the heat generated by the first heating tube 61 to be evenly distributed to the bottom of the steam generating chamber 11, thereby facilitating the efficient heating of water in the steam generating chamber 11 to form steam. The first heat-conducting cover 63 can protect the first heat-conducting plate 62 and the first heating tube 61.

[0039] like Figure 3 As shown, in this embodiment, the second heating element 70 extends into the steam generating chamber 11 from the bottom wall of the steam generating chamber 11. To facilitate the second heating element 70's extension into the steam generating chamber 11 from the bottom wall, in this embodiment, the first heat-conducting plate 62 is configured as an annular plate, and the top surface of the first heat-conducting cover 63 is provided with a cover hole for the second heating element 70 to pass through. The first heating tube 61 is configured as an annular tube, which is beneficial for uniform heating of the bottom wall of the steam generating chamber 11.

[0040] Further, please see Figure 3 The second heating element 70 includes a second heating tube 71 and a second heat-conducting cover 72. The second heat-conducting cover 72 is a downward-facing cover that covers the outside of the second heating tube 71. In this way, the second heat-conducting cover 72 separates the second heating tube 71 from the water in the steam generating chamber 11, preventing the second heating tube 71 from heating water and affecting its steam heating efficiency. At the same time, since the second heating tube 71 does not come into contact with water, scale formation on its surface is prevented, thus not affecting its heating efficiency. Furthermore, cleaning only requires cleaning the surface of the second heat-conducting cover 72, making cleaning very convenient.

[0041] Furthermore, in one embodiment, the second heat-conducting cover 72 and the bottom wall of the steam generating chamber 11 are integrally formed. This results in a simple structure, ease of processing, and eliminates the need for a sealing structure between the second heat-conducting cover 72 and the bottom wall of the steam generating chamber 11. Furthermore, the second heat-conducting cover 72 and the bottom wall of the steam generating chamber 11 can be made of metal. However, this is not a limitation. In other embodiments, the lower end of the second heat-conducting cover 72 is sealed to the bottom wall of the steam generating chamber 11. This creates a separate structure for the second heat-conducting cover 72 and the bottom wall of the steam generating chamber 11, allowing for separate processing and assembly, which improves production efficiency. Moreover, the second heat-conducting cover 72 and the bottom wall of the steam generating chamber 11 can be made of different materials, offering greater processing flexibility. In one embodiment, the bottom wall of the steam generating chamber 11 can be made of metal, while the second heat-conducting cover 72 can be made of glass; this application does not impose any limitations on this.

[0042] Further, please see Figure 4 The second heating element 71 includes a heating body 711, a connecting section 712, and a terminal block 713. The heating body 711 is arranged in one or more layers around the circumference of the second heat-conducting cover 72, and the heating body 711 is at least partially located above the preset water level line A. The terminal block 713 is located below the bottom wall of the steam generating chamber 11, and the connecting section 712 connects the heating body 711 and the terminal block 713. Thus, the heating body 711 is arranged in one or more layers around the circumference of the second heat-conducting cover 72, resulting in a larger heating range, which is beneficial for heating more steam to form high-temperature steam, thereby greatly improving the heating efficiency of high-temperature steam. In this embodiment, the heating body 711 is spiral-shaped, that is, the heating body 711 is arranged in multiple layers around the circumference of the second heat-conducting cover 72, resulting in better steam heating effect. However, it is not limited to this; in other embodiments, the heating body 711 can also be arranged in a ring shape, which is equivalent to the heating body 711 being arranged in one layer around the circumference of the steam generating chamber 11.

[0043] Furthermore, the second heat-conducting cover 72 has an air inlet on its side wall and an air outlet on its top wall, with the lowest point of the air inlet higher than the preset water level line A. This allows steam to enter the second heat-conducting cover 72 through the air inlet, enabling it to contact the second heating tube 71 and improving the heating effect. The fact that the lowest point of the air inlet is higher than the preset water level line A ensures that water will not enter the second heat-conducting cover 72, thus ensuring that the second heating tube 71 only heats steam and not water, guaranteeing its heating efficiency.

[0044] The height of the preset water level line A needs to be set appropriately. If the preset water level line A is too high, the steam generation rate will be slow, and the water will have more contact with the second heat-conducting cover 72 of the second heating element 70, thus affecting the heating efficiency of the steam. If the preset water level line A is too low, dry burning may occur. Please refer to [link / reference]. Figure 4 In one embodiment, the distance between the preset water level line A and the bottom wall of the steam generating chamber 11 is H1, and the distance between the highest point of the second heat-conducting cover 72 and the bottom wall of the steam generating chamber 11 is H2, where 0.2 ≤ H1 / H2 ≤ 0.3. Thus, the height of the preset water level line A is neither too high nor too low, ensuring rapid steam generation while minimizing the impact on the heating efficiency of the second heating element 70 and reducing the occurrence of dry burning.

[0045] Furthermore, the outer contour of the bottom wall of the steam generating chamber 11 is circular, and the outer diameter of the bottom wall of the steam generating chamber 11 is φ1. The second heat-conducting cover 72 is cylindrical, and the outer diameter of the second heat-conducting cover 72 is φ2, with 20mm ≤ 0.5(φ1-φ2) ≤ 40mm. If 0.5(φ1-φ2) is too large, the amount of low-temperature steam formed by the first heating element 60 heating water will be too large, causing the heating temperature of the low-temperature steam by the second heating element 70 to drop, resulting in insufficient high-temperature steam. If 0.5(φ1-φ2) is too small, the amount of low-temperature steam formed by the first heating element 60 heating water will be too small, resulting in less high-temperature steam entering the cooking chamber 21, causing the temperature inside the cooking chamber 21 to rise slowly. It is understandable that "low-temperature steam" and "high-temperature steam" do not refer to steam within a specific temperature range. "Low-temperature steam" refers to the steam formed after the water in the steam generating chamber 11 is heated and evaporated, while "high-temperature steam" refers to the steam formed after the "low-temperature steam" is heated by the second heating element 70. Therefore, the temperature of "high-temperature steam" is higher than that of "low-temperature steam". In this embodiment, 20mm≤0.5(φ1-φ2)≤40mm ensures that the distance between the outer wall of the second heat-conducting cover 72 and the peripheral edge of the first heat-conducting plate 62 is moderate. This ensures that the amount of low-temperature steam formed by the first heating element 60 heating the water is sufficient, and that the second heating element 70 can heat the low-temperature steam to a sufficiently high temperature. This ensures both the amount of high-temperature steam entering the cooking chamber 21 and the temperature of the high-temperature steam, thereby ensuring the effectiveness of high-temperature cooking of food.

[0046] Furthermore, the second heat-conducting cover 72 coincides with the central axis of the steam generating chamber 11. Thus, in the circumferential direction of the second heat-conducting cover 72, the distance between the outer wall of the second heat-conducting cover 72 and the inner wall of the steam generating chamber 11 is equal, which is beneficial for the second heating element 70 to heat the steam to form high-temperature steam and is easy to clean.

[0047] In this embodiment, the outer contour of the bottom wall of the steam generating chamber 11 is circular, but it is not limited to this. The outer contour of the bottom wall of the steam generating chamber 11 can also be annular, elliptical annular, hexagonal annular, octagonal annular, or other shapes. This application does not limit this. In this embodiment, the second heat-conducting cover 72 is cylindrical, but it is not limited to this. In other embodiments, the second heat-conducting cover 72 can be elliptical cylindrical, square cylindrical, hexagonal cylindrical, or other shapes. This application does not limit this.

[0048] Furthermore, the projected area of ​​the region enclosed by the outer contour of the bottom wall of the steam generating chamber 11 on the horizontal plane is S1, and the projected area of ​​the region enclosed by the outer contour of the second heat-conducting cover 72 on the horizontal plane is S2, where 0.2 ≤ S2 / S1 ≤ 0.3. S2 / S1 represents the size relationship between the heat radiation areas of the second heating element 70 and the first heating element 60. If S2 / S1 is too large, the amount of low-temperature steam generated by the first heating element 60 heating water will be too large, resulting in a decrease in the heating temperature of the low-temperature steam by the second heating element 70, thus the temperature of the high-temperature steam generated will not be high enough. If S2 / S1 is too small, the amount of low-temperature steam generated by the first heating element 60 heating water will be too small, resulting in a smaller amount of high-temperature steam entering the cooking chamber 21, thus causing the temperature inside the cooking chamber 21 to rise slowly. In this embodiment, 0.2≤S2 / S1≤0.3 ensures that the amount of low-temperature steam generated by the first heating element 60 heating water is sufficient, and the second heating element 70 can heat the low-temperature steam to a sufficiently high temperature, thus ensuring both the amount of high-temperature steam entering the cooking chamber 21 and the temperature of the high-temperature steam, thereby ensuring the effect of high-temperature cooking of food.

[0049] Further, please see Figure 3 The bottom of the water receiving tray 30 is provided with an annular baffle 32, which extends into the steam generating chamber 11 and surrounds the outer periphery of the second heating element 70. The steam inlet 31 is located inside the baffle 32. In this way, the baffle 32 can prevent steam from diffusing outward and leaking, thereby guiding steam from the steam inlet 31 into the cooking chamber 21, ensuring the effective use of steam.

[0050] like Figure 2 and Figure 3 As shown, in one embodiment, the water tank 12 is set independently of the base 10. Furthermore, the water tank 12 can be configured as a detachable structure, meaning it is detachably connected to the base 10. Of course, the water tank 12 can also be fixedly installed on the base 10. Additionally, the water tank 12 can be integrally formed on the base 10; this application does not limit this, as long as the water tank 12 can replenish water to the steam generating chamber 11.

[0051] In one embodiment, the water control component 40 is configured as a float valve. The float valve uses the buoyancy of water to raise and lower, thereby controlling the opening and closing of the water tank 12 and the steam generating chamber 11, and thus controlling the water level in the steam generating chamber 11. Specifically, the float valve is located at the outlet of the water tank 12. When the water level in the steam generating chamber 11 drops below the preset water level line A, the float valve lowers to the position of opening the outlet, connecting the water tank 12 and the steam generating chamber 11, allowing the water tank 12 to replenish water to the steam generating chamber 11, causing the water level in the steam generating chamber 11 to rise. When the water level in the steam generating chamber 11 rises above the preset water level line A, the float valve rises to the position of closing the outlet, isolating the water tank 12 and the steam generating chamber 11, thus preventing the water tank 12 from replenishing water to the steam generating chamber 11. The float valve control method is simple and can keep the water level in the steam generating chamber 11 always below the preset water level line A. Of course, the water control component 40 can also be a water pump or other water control components, as long as it can achieve water level control so that the water level in the steam generating chamber 11 is always kept below the preset water level line A.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. An electric steamer, comprising a base (10), a cooking body (20), a water tray (30), a water tank (12), and a water control component (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) is connected to the steam generating chamber (11) and the cooking chamber (21), the water tank (12) is connected to the steam generating chamber (11), and the water control component (40) is located between the water tank (12) and the steam generating chamber (11) for controlling 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 (60) for generating steam and a second heating element (70) for heating steam. The first heating element (60) is located at the bottom of the steam generating chamber (11), and the second heating element (70) extends into the steam generating chamber (11) from the bottom of the steam generating chamber (11), and the second heating element (70) is at least partially higher than the preset water level line.

2. The electric steamer according to claim 1, characterized in that, The second heating element (70) includes a second heating tube (71) and a second heat-conducting cover (72). The second heat-conducting cover (72) is a cover with its opening facing downwards, and the second heat-conducting cover (72) covers the outside of the second heating tube (71).

3. The electric steamer according to claim 2, characterized in that, The second heat-conducting cover (72) is integrally formed with the bottom wall of the steam generating chamber (11), or the lower end of the second heat-conducting cover (72) is sealed to the bottom wall of the steam generating chamber (11).

4. The electric steamer according to claim 2, characterized in that, The second heating tube (71) includes a heating body (711), a connecting section (712), and a wiring terminal (713). The heating body (711) is arranged in one or more layers around the second heat-conducting cover (72) in the circumference, and the heating body (711) is at least partially located above the preset water level line. The wiring terminal (713) is located below the bottom wall of the steam generating chamber (11). The connecting section (712) connects the heating body (711) and the wiring terminal (713).

5. The electric steamer according to claim 2, characterized in that, The distance between the preset water level line and the bottom wall of the steam generating chamber (11) is H1, and the distance between the highest point of the second heat-conducting cover (72) and the bottom wall of the steam generating chamber (11) is H2, where 0.2≤H1 / H2≤0.

3.

6. The electric steamer according to claim 2, characterized in that, The outer contour of the bottom wall of the steam generating chamber (11) is circular, and the outer diameter of the bottom wall of the steam generating chamber (11) is φ1. The second heat-conducting cover (72) is cylindrical, and the outer diameter of the second heat-conducting cover (72) is φ2. 20mm≤0.5(φ1-φ2)≤40mm.

7. The electric steamer according to claim 6, characterized in that, The second heat-conducting cover (72) coincides with the central axis of the steam generating chamber (11).

8. The electric steamer according to claim 2, characterized in that, The second heat-conducting cover (72) has an air inlet on its side wall and an air outlet on its top wall. The lowest point of the air inlet is higher than the preset water level line.

9. The electric steamer according to claim 1, characterized in that, The bottom of the water receiving tray (30) is provided with an annular partition (32), which extends into the steam generating chamber (11) and surrounds the outer periphery of the second heating element (70). The steam inlet (31) is located inside the partition (32).

10. The electric steamer according to claim 1, characterized in that, The first heating element (60) includes a first heating tube (61), a first heat-conducting plate (62), and a first heat-conducting cover (63). The first heat-conducting plate (62) is annular. The first heating tube (61) is located below the first heat-conducting plate (62). The first heat-conducting cover (63) is a cover with its opening facing downward. The first heat-conducting cover (63) covers the upper side of the first heat-conducting plate (62). The top surface of the first heat-conducting cover (63) 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