Steam base and electric steamer comprising same

Abstract

The utility model discloses a steam base and an electric steamer comprising the steam base. The steam base comprises a base body, a steam inlet and a steam outlet, the heating disc is arranged on the base body, a liquid cavity is formed in the heating disc, and the heating disc is used for heating liquid in the liquid cavity; the flow guide shell is connected to the heating disc, and a steam cavity communicated with the liquid cavity is formed in the flow guide shell; the heater is provided with a heating flow channel, the heating flow channel is communicated with the steam cavity, and the heater is used for heating steam in the heating flow channel. Thus, steam generated in the liquid cavity can sequentially pass through the steam cavity and the heating flow channel, the steam cavity guides the steam into the heating flow channel, the heater can conduct secondary heating on the steam in the heating flow channel, and therefore the temperature of the steam is increased to be above the boiling point, high-temperature steam can be rapidly generated, the cooking time is shortened, and the cooking efficiency is improved. And the heating flow channel for heating the steam cannot be blocked due to scale generation, so that the experience feeling of consumers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric steamers, in particular to a steam base and an electric steamer including the steam base. Background Art

[0002] An electric steamer is a modern cooking appliance that can quickly steam food and provides a convenient cooking method for users. However, when traditional electric steamers generate steam, there are often problems such as insufficient steam temperature and longer steaming time, which affect the user's cooking experience and the taste of food. Summary of the Utility Model

[0003] In order to overcome at least one of the above-mentioned defects of the prior art, the utility model provides a steam base and an electric steamer including the steam base, aiming to achieve rapid heating of steam, shorten the steaming time, and improve cooking efficiency.

[0004] The technical solution adopted by the utility model to solve its problems is as follows:

[0005] A steam base for an electric steamer includes: a base body; a heating plate disposed on the base body, a liquid cavity is provided in the heating plate, and the heating plate is used to heat the liquid in the liquid cavity; a diversion shell connected to the heating plate, a steam cavity communicating with the liquid cavity is formed in the diversion shell; a heater, a heating flow channel is provided on the heater, the heating flow channel communicates with the steam cavity, and the heater is used to heat the steam in the heating flow channel.

[0006] By adopting the above solution, the steam generated in the liquid cavity will sequentially pass through the steam cavity and the heating flow channel. The steam cavity guides the steam into the heating flow channel, and the heater can reheat the steam in the heating flow channel, so that the temperature of the steam is raised above the boiling point. In this way, high-temperature steam can be quickly generated, the steaming duration can be shortened, and the heating flow channel for heating the steam will not be blocked due to scale formation, thereby improving the consumer experience.

[0007] According to some embodiments of the utility model, the heater includes a heat-conducting shell and a PTC heating element, the heating flow channel is provided in the heat-conducting shell, and the PTC heating element is connected to the heat-conducting shell.

[0008] By adopting the above solution, the PTC heating element generates heat when powered on. The PTC heating element is resistance heating, and the temperature is relatively constant in the case of dry burning, which is safer and more stable for heating steam. Moreover, the heat-conducting shell has good heat-conducting performance, which can improve the heat transfer efficiency between the PTC heating element and the steam.

[0009] According to some embodiments of the utility model, an installation groove is formed on the heat-conducting shell, and the PTC heating element is inserted into the installation groove.

[0010] By adopting the above scheme, the installation groove can provide guidance and positioning for the installation of the PTC heating element.

[0011] According to some embodiments of the present invention, the heat conducting shell has a first outer side wall and a second outer side wall which are oppositely arranged. The first outer side wall is provided with a first pressing groove, and the second outer side wall is provided with a second pressing groove. The first pressing groove and the second pressing groove are located on opposite sides of the PTC heating element.

[0012] By adopting the above scheme, the positions of the first pressing groove on the first outer side wall and the second pressing groove on the second outer side wall are thinner, and these two positions are more likely to deform. In this way, it is convenient to clamp the above-mentioned PTC heating element by pressing these two positions.

[0013] According to some embodiments of the present invention, the steam base further includes a connecting member. The connecting member has an air inlet section and at least two shunt sections. The air inlet section is communicated with each shunt section, and the air inlet section is also communicated with the steam cavity. There are at least two heaters, and at least two shunt sections are respectively and correspondingly communicated with the heating channels of at least two heaters.

[0014] By adopting the above scheme, after the steam enters the connecting member, it will be shunted by at least two shunt sections into the heating channels of at least two heaters, and the steam heating efficiency and the steam heating effect can be ensured and improved.

[0015] According to some embodiments of the present invention, there are two shunt sections, and there are two heaters. The two shunt sections and the heating channels of the two heaters are respectively and correspondingly communicated. The two shunt sections are arranged at an angle, and the angle between the two shunt sections facing the steam cavity is an obtuse angle.

[0016] By adopting the above scheme, the two heating channels can be arranged obliquely in the seat body, so as to extend the overall length of the heating channels, thereby increasing the contact area between the heating channels and the steam, and further improving the heat exchange efficiency.

[0017] According to some embodiments of the present invention, the inner side wall of the heating channel is convexly provided with heat exchange ribs.

[0018] By adopting the above scheme, the contact area between the heating channel and the steam can be increased, thereby improving the heat exchange efficiency.

[0019] According to some embodiments of the present invention, the steam base further includes a first sealing ring, and the first sealing ring seals the connection between the guide shell and the heating plate.

[0020] By adopting the above scheme, the sealing performance between the guide shell and the heating plate is improved.

[0021] According to some embodiments of the present utility model, the steam base further includes a cavity cover and the second sealing ring. An opening is provided on one side of the steam cavity. The cavity cover is detachably disposed on the opening to close the opening, and the second sealing ring seals the connection between the cavity cover and the opening.

[0022] By adopting the above solution, when it is necessary to clean the steam cavity and the liquid cavity, the cavity cover can be removed and then the steam cavity and the liquid cavity can be cleaned. The second sealing ring can improve the sealing performance between the cavity cover and the opening when the cavity cover is disposed on the opening.

[0023] In addition, the present utility model further provides an electric steamer, which includes the steam base as described above. This electric steamer has all the advantages of the above-mentioned steam base, and will not be elaborated herein.

[0024] In summary, the steam base provided by the present utility model and the electric steamer including the steam base have at least the following technical effects:

[0025] 1) The heater can perform secondary heating on the steam in the heating flow channel, so that the temperature of the steam is raised above the boiling point, high-temperature steam can be quickly generated, the steaming duration can be shortened, and the heating flow channel for heating the steam will not be blocked due to scale formation, improving the consumer experience.

[0026] 2) The PTC heating element is resistance heating, and the temperature is relatively constant in the case of dry burning, making it safer and more stable in temperature for heating steam.

[0027] 3) The heat conduction shell has good heat conduction performance, which can improve the heat transfer efficiency between the PTC heating element and the steam.

[0028] 4) After the steam enters the connecting member, it will be shunted by at least two shunting sections into the heating flow channels of at least two heaters, ensuring and improving the steam heating efficiency and the steam heating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic structural view of the steam base according to an embodiment of the present utility model;

[0030] Figure 2 is an exploded structural view of the steam base according to an embodiment of the present utility model;

[0031] Figure 3 is a schematic internal structural view of the steam base (the base body is not shown) according to an embodiment of the present utility model;

[0032] Figure 4 is a schematic structural view of the heat conduction shell according to an embodiment of the present utility model;

[0033] Figure 5This is a schematic structural diagram of the electric steam cooker according to the embodiment of the present utility model.

[0034] Among them, the meanings of the reference numerals are as follows:

[0035] 1. Base body; 2. Heating plate; 21. Liquid cavity; 22. Heating wire; 3. Flow guide shell; 31. Steam cavity; 4. Heater; 41. Heat conduction shell; 411. First outer wall; 4111. First pressing groove; 412. Second outer wall; 4121. Second pressing groove; 413. Installation groove; 42. PTC heating element; 43. Heating flow channel; 431. Heat exchange rib; 5. Connecting member; 51. Air inlet section; 52. Shunt section; 6. First sealing ring; 7. Second sealing ring; 8. Cavity cover; 9. Partition board; 100. Main housing; 101. Steam baking cavity. Detailed implementation manners

[0036] For better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0037] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present utility model.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0039] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0040] Please refer to Figures 1 to 5 , this embodiment discloses a steam base for an electric steam cooker, which includes a base body 1, a heating plate 2, a flow guide shell 3 and a heater 4; the heating plate 2 is arranged in the base body 1, a liquid cavity 21 is arranged in the heating plate 2, and the heating plate 2 is used for heating the liquid in the liquid cavity 21 to generate steam; the flow guide shell 3 is connected to the heating plate 2, and a steam cavity 31 communicating with the liquid cavity 21 is formed in the flow guide shell 3; a heating flow channel 43 is arranged on the heater 4, the heating flow channel 43 is communicated with the steam cavity 31, and the heater 4 is used for heating the steam in the heating flow channel 43 to realize secondary heating of the steam.

[0041] In a steam base disclosed in this embodiment, the steam generated in the liquid cavity 21 will pass through the steam cavity 31 and the heating channel 43 in sequence. The steam cavity 31 will guide the steam into the heating channel 43. The heater 4 can perform secondary heating on the steam in the heating channel 43, thereby raising the temperature of the steam to above the boiling point. In this way, high-temperature steam can be generated quickly, shortening the steaming time, and the heating channel 43 used for heating the steam will not be blocked due to scale generation, thereby improving the consumer experience.

[0042] like Figure 2 and Figure 3 As shown, specifically, in this embodiment, a heating wire 22 is provided on the lower side wall of the heating plate 2 , and the heating wire 22 generates heat when powered on and can transfer heat to the liquid cavity 21 .

[0043] like Figure 2 As shown, further, in this embodiment, the heater 4 includes a heat-conducting shell 41 and a PTC heating element 42, the heating channel 43 is arranged in the heat-conducting shell 41, and the PTC heating element 42 is connected to the heat-conducting shell 41, so that the PTC heating element 42 is resistive heating, and generates heat by resistive heating for secondary heating of the steam in the heating channel 43. The temperature of the PTC heating element 42 is relatively constant in the case of dry burning, thereby ensuring the safety and stability of steam heating, and the heat-conducting shell 41 has good thermal conductivity, which can improve the heat transfer efficiency between the PTC heating element 42 and steam.

[0044] Preferably, in this embodiment, the heat-conducting shell 41 is an aluminum alloy shell, and the aluminum alloy has excellent thermal conductivity, easy processing and high hardness; indeed, in some other embodiments, the heat-conducting shell 41 can also be but not limited to a stainless steel shell or a silicon shell with good thermal conductivity.

[0045] like Figure 2 and Figure 4 As shown, preferably, in this embodiment, in order to facilitate the installation of the PTC heating element 42, a mounting groove 413 is provided on the heat-conducting shell 41, and the PTC heating element 42 is inserted into the mounting groove 413. Specifically, in this embodiment, the heat-conducting shell 41 has a first outer side wall 411 and a second outer side wall 412 that are arranged opposite to each other. More preferably, the first outer side wall 411 is provided with a first pressing groove 4111, and the second outer side wall 412 is provided with a second pressing groove 4121. The first pressing groove 4111 and the second pressing groove 4121 are located on opposite sides of the PTC heating element 42. The thickness of the position where the first pressing groove 4111 of the first outer side wall 411 is provided and the position where the second pressing groove 4121 of the second outer side wall 412 is provided are relatively thin, and these two positions are more easily deformed. By pressing these two positions, the heat-conducting shell 41 can be conveniently clamped to the PTC heating element 42.

[0046] like Figure 2 andFigure 3 As shown, further, in this embodiment, the steam base further includes a connecting member 5. The connecting member 5 has an air inlet section 51 and two shunt sections 52. Each shunt section 52 is communicated with the air inlet section 51, and the air inlet section 51 is also communicated with the steam chamber 31. There are two heaters 4 correspondingly arranged. The two shunt sections 52 are also communicated with the heating channels 43 of the two heaters 4 one by one. In this way, after the steam enters through the air inlet section 51, it is dispersed into the heating channels 43 of each heater 4 through the shunt sections 52, and the steam heating efficiency and the steam heating effect are ensured and improved.

[0047] As Figure 2 shown, preferably, in this embodiment, the two shunt sections 52 are arranged at an angle. The angle between the two shunt sections 52 facing the steam chamber 31 is an obtuse angle. In this way, the two heating channels 43 can be arranged obliquely in the base body 1, so as to extend the overall length of the heating channels 43 and thus increase the contact area between the heating channels 43 and the steam, and further improve the heat exchange efficiency.

[0048] More preferably, in this embodiment, in order to increase the contact area between the heating channel 43 and the steam, the inner side wall of the heating channel 43 is convexly provided with heat exchange ribs 431, so as to improve the heat exchange efficiency.

[0049] As Figure 1 and Figure 3 shown, further, in this embodiment, the steam base further includes a cavity cover 8. An opening is provided on one side of the steam chamber 31, and the cavity cover 8 is detachably covered on the opening to close the opening. In this way, when it is necessary to clean the steam chamber 31 and the liquid chamber 21, the cavity cover 8 can be removed and then the steam chamber 31 and the liquid chamber 21 can be cleaned to remove scale.

[0050] As Figure 3 shown, preferably, in this embodiment, in order to improve the sealing performance, the steam base further includes a first sealing ring 6 and a second sealing ring 7. The first sealing ring 6 seals the connection between the guide shell 3 and the heating plate 2, and the second sealing ring 7 can seal the connection between the cavity cover 8 and the opening when the cavity cover 8 is covered on the opening.

[0051] As Figure 1 and Figure 3 shown, specifically, in this embodiment, the steam base further includes a partition plate 9. The partition plate 9 is covered on the base body 1 to protect the electrical components such as the heating plate 2 and the heater 4 in the base body 1. Preferably, in this embodiment, in order to reduce the production cost, the heat conduction shell 41 is integrally formed on the partition plate 9.

[0052] As Figure 5As shown in the figure, in addition, this embodiment further provides an electric steam cooker, which includes the steam base as described above, and further includes a main housing 100. The main housing 100 is connected to the base 1. The cavity inside the partition plate 9 and the main housing 100 forms a steaming and baking cavity, and food is placed in the steaming and baking cavity. The above-mentioned steam flows from the outlet of the heating channel 43 to the steaming and baking cavity to cook food. This electric steam cooker has all the advantages of the above-mentioned steam base, which will not be elaborated here.

[0053] In summary, the steam base disclosed by the present utility model and the electric steam cooker including this steam base can at least bring the following beneficial technical effects:

[0054] 1) The heater 4 can reheat the steam in the heating channel 43, so that the temperature of the steam is raised above the boiling point, high-temperature steam can be quickly generated, the steaming time can be shortened, and the heating channel 43 for heating the steam will not be blocked due to scale formation, thus improving the consumer experience.

[0055] 2) The PTC heating element 42 is resistance heating, and the temperature is relatively constant in the case of dry burning, which is safer and more stable for heating steam.

[0056] 3) The heat conducting shell 41 has good heat conducting performance, which can improve the heat transfer efficiency between the PTC heating element 42 and the steam.

[0057] 4) After the steam enters the connecting member 5, it will be split by at least two splitting sections 52 into the heating channels 43 of at least two heaters 4, ensuring and improving the steam heating efficiency and steam heating effect.

[0058] The technical means disclosed by the solution of the present utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present utility model.

Claims

1. Steam base, for electric steamer, characterized in that: include: base(1); A heating plate (2) is arranged on the base (1), a liquid cavity (21) is arranged in the heating plate (2), and the heating plate (2) is used to heat the liquid in the liquid cavity (21); A flow guide shell (3) connected to the heating plate (2), wherein a steam chamber (31) communicating with the liquid chamber (21) is formed in the flow guide shell (3); A heater (4), wherein a heating channel (43) is provided on the heater (4), wherein the heating channel (43) is connected to the steam chamber (31), and the heater (4) is used to heat the steam in the heating channel (43).

2. The steam base according to claim 1, characterized in that The heater (4) comprises a heat-conducting shell (41) and a PTC heating element (42); the heating flow channel (43) is arranged on the heat-conducting shell (41); and the PTC heating element (42) is connected to the heat-conducting shell (41).

3. The steam base according to claim 2, characterized in that: The heat-conducting shell (41) is provided with a mounting groove (413), and the PTC heating element (42) is inserted into the mounting groove (413).

4. The steam base according to claim 3, characterized in that The heat-conducting shell (41) comprises a first outer side wall (411) and a second outer side wall (412) which are arranged opposite to each other; the first outer side wall (411) is provided with a first pressing groove (4111); the second outer side wall (412) is provided with a second pressing groove (4121); the first pressing groove (4111) and the second pressing groove (4121) are located on opposite sides of the PTC heating element (42).

5. The steam base according to claim 1, characterized in that The steam base further comprises a connecting piece (5), the connecting piece (5) having an air inlet section (51) and at least two diversion sections (52), the air inlet section (51) being connected to each of the diversion sections (52), the air inlet section (51) also being connected to the steam chamber (31), at least two of the heaters (4) being provided, and at least two of the diversion sections (52) also being connected to the heating channels (43) of at least two of the heaters (4) in a one-to-one correspondence.

6. The steam base according to claim 5, characterized in that Two diverter sections (52) are provided, and two heaters (4) are provided. The two diverter sections (52) and the heating flow channels (43) of the two heaters (4) are connected one by one. The two diverter sections (52) are arranged at an angle, and the angle between the two diverter sections (52) toward the steam chamber (31) is an obtuse angle.

7. The steam base according to any one of claims 1 to 6, characterized in that: The inner wall of the heating flow channel (43) is protrudingly provided with a heat exchange rib (431).

8. The steam base according to any one of claims 1 to 6, characterized in that: The steam base further comprises a first sealing ring (6), wherein the first sealing ring (6) seals the connection between the flow guide shell (3) and the heating plate (2).

9. The steam base according to any one of claims 1 to 6, characterized in that: The steam base further comprises a cavity cover (8) and a second sealing ring (7); an opening is provided on one side of the steam cavity (31); the cavity cover (8) is detachably arranged on the opening to close the opening; and the second sealing ring (7) seals the connection between the cavity cover (8) and the opening.

10. An electric steamer, characterized in that: Comprising a steam base as described in any one of claims 1-9.

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