Electrically heated steam generating heating base, electrically heated steam generating device and cooking appliance

Abstract

The application discloses an electric heating steam generation heating seat, an electric heating steam generation device and a cooking utensil. The steam generation device comprises a containing cover, an electric heating element and a fixing seat. The containing cover is configured as an upper opening cover structure with a cover bottom wall and a cover side wall. The electric heating element comprises a main heating section and a connecting end. The fixing seat is connected with the containing cover and has a seat bottom wall and a seat side wall. The seat bottom wall is provided with a limiting hole. In an assembled state, the main heating section is located at the lower side of the cover bottom wall, the seat bottom wall is located at the lower side of the main heating section, the main heating section is clamped between the cover bottom wall and the seat bottom wall, the connecting end extends to the outside of the fixing seat through the limiting hole, and the extending direction of the connecting end outside the fixing seat and the seat bottom wall form an included angle alpha. The included angle alpha is 80 DEG <= alpha <= 100 DEG. The steam generation heating seat is composed of three independent components, has a simple structure, the independent components are independently produced and manufactured, and the manufacturing cost is low. The heat generated by the main heating section is effectively transmitted to the containing cover.

Description

Technical Field

[0001] This application relates to the technical field of kitchen appliances, and more specifically to an electric steam generator, an electric steam generator, and a cooking appliance. Background Technology

[0002] Steam cooking appliances such as steam rice cookers have independent steam generating devices and steam delivery channels. The steam generated by the steam generating device is delivered to the cooking chamber through the steam delivery channel to replenish the cooking chamber with steam, so as to maintain the moisture of the rice and make the rice have a better taste.

[0003] A steam generating device includes a heating element and a water container. The heating element heats the water in the water container to produce steam. The heating element is generally a structure of cast aluminum heating tubes or brazed heating tubes on a heat-conducting component. The structure of the heating element is complex and the manufacturing cost is high.

[0004] Therefore, an electrically heated steam generator is needed to at least partially solve the above problems. Utility Model Content

[0005] The description of this utility model introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This description is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] To at least partially solve the above problems, this application provides an electrically heated steam generator base for an electrically heated steam generating device, the steam generator base comprising: A receiving cover, wherein the receiving cover is constructed as an openable mask-shaped structure having a bottom wall and side walls; An electric heating element, comprising a main heating section and a connection terminal connected to the main heating section; and A fixing seat is connected to the receiving cover. The fixing seat has a bottom wall and a side wall connected to the bottom wall. The bottom wall is provided with a limiting hole. In the assembled state, The main heating section is located on the lower side of the bottom wall of the cover; and, The bottom wall of the seat is located below the main heating section. The main heating section is sandwiched between the bottom wall of the cover and the bottom wall of the base, and the connecting end extends beyond the fixed base via the limiting hole. The connecting end extends out of the fixed seat and forms an angle α with the bottom wall of the seat, wherein the angle α is: 80°≤α≤100°.

[0007] According to this design, the steam generator heating base is composed of three independent components used for heating and supporting the water container. It features a simple structure, with each component manufactured independently, resulting in low manufacturing costs. The heating element's connection point is located outside the mounting base, where the connecting end and wires do not occupy space between the mounting base and the housing. This allows for a compact assembly connection between the mounting base and the housing, facilitating full contact between the main heating section of the heating element and the housing. The heat generated by the main heating section is effectively transferred to the housing and then used to heat the water in the container. This design improves heat transfer efficiency, thereby enhancing the product's energy efficiency.

[0008] The steam generating heating base is mounted on the main body of the cooking appliance, and the entire device is suspended inside the pot body. The entire device has a certain relative distance or relative three-dimensional space with the surrounding components. The design of the steam generating heating base in this solution makes it easier to assemble the device and perform wiring operations during the assembly process, which can shorten wiring time and improve production efficiency.

[0009] Optionally, the side of the main heating section facing the bottom wall of the cover is configured as a heat-conducting plane, and the heat-conducting plane of the main heating section is in contact with the bottom wall of the cover. According to this solution, the main heating section of the heating element is attached to the housing cover through the heat-conducting plane, so that the heating element and the housing cover are in surface contact, thereby ensuring good heat transfer between the heating element and the housing cover.

[0010] Optionally, the outer surface of the seat sidewall is flush with the outer surface of the cover sidewall in the circumferential direction. According to this solution, the outer surface of the steam generating heating seat is neat and without protrusions, and the overall shape of the steam generating heating seat is regular, which can maximize space utilization when applied to cooking appliances.

[0011] Optionally, a central waterproof section is integrally formed in the central area of ​​the base wall, and a bearing area and the limiting hole are integrally formed in the surrounding area of ​​the central waterproof section, wherein the main heating section is disposed in the bearing area. According to this solution, the heating element can be arranged around the central waterproof section, which can prevent water flowing onto the base from flowing towards the heating element and other electrical components. The water is contained within the central waterproof section, preventing water accumulation on the base. This prevents damage to the heating element and other electrical components on the base, ensuring the safe use of the electrical components and improving the overall safety of the product.

[0012] Optionally, the bearing area has a bearing surface, and the central waterproof section includes water-retaining ribs that protrude upwards from the bearing surface and are distributed in a ring shape. According to this solution, the water-retaining ribs can block the flow of water, and by setting the water-retaining ribs, the central waterproof section can be stretched and formed by a plate-like component, making the manufacturing process easy and the manufacturing cost low.

[0013] Optionally, a recessed water-guiding part is integrally provided in the central depression formed by the water-blocking ribs. According to this solution, the recessed water-guiding part can guide water downwards, causing the water to drip downwards and detach from the fixing seat, thus preventing water from accumulating in the central waterproof part.

[0014] Optionally, the recessed water guide portion is a flanged hole extending outward from the fixing seat. According to this solution, water can flow downward along the inner wall of the flanged hole, and the structure of the flanged hole is simple and easy to manufacture.

[0015] Optionally, the inner wall of the flanged hole is provided with threads. According to this solution, the flanged hole serves not only as a downward guide but also as a hole through which fasteners pass, thus serving two purposes. Furthermore, the recessed water guide portion extends the connection length between the fastener and the fixing seat, making the connection between the fastener and the fixing seat more stable.

[0016] Optionally, the cross-section of the water-blocking rib is in the shape of a "∩". According to this solution, a portion of the plate-like component can be extruded in a direction perpendicular to itself to form a hollow inverted U-shaped rib. The water-blocking rib has good structural strength and is easy to manufacture.

[0017] The water-blocking rib has a height dimension H protruding upwards from the bearing surface, wherein the height dimension H is 0.5mm~6mm. According to this solution, the central waterproof section can effectively prevent water from flowing towards the heating element.

[0018] Optionally, the bottom wall of the cover is provided with a drainage section with drainage holes. The drainage section is recessed downward from the upper side of the bottom wall and protrudes outward from the bottom wall, partially adapting to the central waterproof section of the mounting base. According to this solution, the drainage section can collect water that is not desired to flow into the housing cover and flow through the drainage holes into the central waterproof section, and then flow out through the flange hole. This can prevent damage to the heating element and other electrical components on the mounting base, ensure the safe use of electrical components, and improve the safety of product use.

[0019] Optionally, the steam generating heating base includes fasteners that pass through the drain hole and the flanged hole of the fixing base to securely connect the fixing base to the receiving cover. According to this solution, the drain hole and the flanged hole serve not only as channels for water flow but also as through which the fastener passes, providing a dual-purpose design. The fasteners, in addition to securing the device, also guide water downwards, causing it to drip down and detach from the fixing base, further enhancing its functionality. The heating element can be easily disassembled and reassembled by removing and installing the fixing base and the receiving cover, facilitating individual replacement of the heating element without requiring the replacement of the entire assembly, thus reducing the maintenance cost of the steam generating device. The fasteners provide pre-tightening force for the connection between the fixing base and the receiving cover, resulting in a tighter fit between the heating element and the bottom wall of the receiving cover, leading to higher heat transfer efficiency.

[0020] Optionally, the bearing area of ​​the base wall has a bearing surface, and the bearing area is integrally formed with a mounting platform that is recessed downward relative to the bearing surface. The mounting platform is used to install the thermostat. According to this solution, the thermostat can be installed on the fixed base. The recessed mounting platform can improve the structural strength of the fixed base, giving the mounting platform a certain structural strength to support and fix the thermostat.

[0021] The bearing area is integrally formed with a curled mounting portion that curls towards the back of the bearing surface. This curled mounting portion is used to install a temperature-limiting safety element. According to this solution, the temperature-limiting safety element can be installed on the underside of the fixing base using the curled mounting portion. The structure is simple and the assembly process is easy to operate.

[0022] Optionally, the mounting platform is positioned in the bearing area near the outer periphery of the base wall. According to this design, the mounting platform is far from the central waterproof section, further preventing water from flowing to the thermostat and causing damage; and the outer periphery of the mounting base has a large circumferential dimension, facilitating the circumferential arrangement of the thermostat.

[0023] Optionally, the connecting end includes a curved portion and a straight portion. The curved portion passes through the limiting hole, and the straight portion is located outside the fixing seat. The extending direction of the straight portion forms an angle α with the bottom wall of the seat. According to this solution, the limiting hole constitutes a clearance area for the curved portion on the fixing seat, which can avoid interference between the connecting end and the fixing seat when passing through the limiting hole. The straight portion of the connecting end passes through the limiting hole more easily without increasing the size of the limiting hole. The straight portion is angled relative to the fixing seat, making the structural arrangement easier.

[0024] Optionally, the limiting hole is located in the area of ​​the bottom wall of the base near the side wall of the base. According to this solution, the fixed base has a large circumferential area near the side wall of the base, which facilitates the circumferential arrangement of the heating element and allows the limiting hole to be located away from other components such as temperature control devices on the fixed base. This allows the connecting end protruding from the limiting hole to be away from the aforementioned other components on the fixed base, reducing interference between components.

[0025] The size of the limiting hole is adapted to the dimension of the connecting end in the second direction. According to this solution, the limiting hole can position and limit the heating element. During assembly, the positioning of the heating element on the fixed base is determined by the positioning of the limiting hole, and after assembly, the horizontal movement of the connecting end is restricted, thereby restricting the horizontal movement of the heating element.

[0026] Optionally, the connection end is provided with a terminal block, which is located at the end of the connection end and arranged along the extension direction of the connection end. According to this solution, the terminal block is far from the mounting base, making it easier to connect the wires, and the connected wires are also far from the mounting base, avoiding interference between the wires and other components on the mounting base, such as temperature control devices.

[0027] The heating element has two connecting ends, and the mounting base has two limiting holes, with each connecting end corresponding to one limiting hole. According to this design, compared to having only one limiting hole, two limiting holes provide more accurate positioning and more effective limiting of the heating element; furthermore, the total area of ​​the limiting holes is smaller, thus having less impact on the structural strength of the mounting base.

[0028] Optionally, the bottom wall and the side wall of the base form a cavity for accommodating the heating element. According to this solution, the base can prevent the heat generated by the heating element from diffusing out of the base, thereby reducing heat loss, improving the overall thermal efficiency of the steam generator, and preventing excessive temperature rise of adjacent components located outside the device.

[0029] Optionally, the mounting base is detachably connected to the housing cover. According to this solution, the mounting base can detachably fix the heating element to the housing cover, thereby enabling the installation and removal of the heating element by disassembling and assembling the mounting base and the housing cover. This facilitates the replacement of the heating element individually without the need to replace the entire assembly consisting of the heating element, thus reducing the maintenance cost of the steam generator.

[0030] Alternatively, the fixing base can be connected to the receiving cover by at least one of the following connection methods: welding, riveting, extrusion clamping, or integral molding. According to this solution, the connection between the fixing base and the receiving cover is simple and the connection is more robust and reliable.

[0031] According to another aspect of this application, an electric steam generating device is provided for cooking appliances, the steam generating device comprising a water container and the aforementioned electric steam generating heating base, the water container being disposed within a housing cover of the steam generating heating base.

[0032] According to this solution, the steam generator heating base can heat the water container to generate supplementary cooking steam. This supplementary cooking steam can enter the cooking chamber, thereby moistening the materials inside the cooking chamber and maintaining their humidity. The electrically heated steam generator heating base achieves the technical effect of the steam generator heating base described in the first aspect above.

[0033] According to another aspect of this application, a cooking appliance is provided, the cooking appliance including a pot body, a lid and the aforementioned electric heating steam generator, the lid being openable and closable and forming a cooking cavity between the two, the lid being provided with a supplementary steam delivery channel, and the steam generator being disposed in the pot body and communicating with the cooking cavity through the supplementary steam delivery channel.

[0034] According to this solution, the supplementary cooking steam generated by the steam generator enters the cooking chamber through the supplementary cooking steam delivery channel, thereby moistening the materials inside the cooking chamber and maintaining their humidity. The electrically heated steam generator's heating base achieves the technical effect of the steam generator heating base described in the first aspect. Attached Figure Description

[0035] The following drawings, which are incorporated herein by reference and used to understand this application, illustrate embodiments of the application and their descriptions, thereby explaining the principles of the application.

[0036] In the attached image: Figure 1 This is a three-dimensional exploded view of a cooking appliance according to a preferred embodiment of this application; Figure 2 for Figure 1 The diagram shows a cross-sectional view of the pot body; Figure 3 for Figure 2 An enlarged schematic diagram of part A in the middle; Figure 4 for Figure 2 The diagram shows a cross-sectional view of the steam generator. Figure 5 for Figure 2 The diagram shown is a three-dimensional exploded view of the steam generator. Figure 6 for Figure 2 The diagram shows an exploded three-dimensional cross-section of the steam generator. Figure 7 for Figure 2 A three-dimensional schematic diagram of the steam generator in an inverted state; Figure 8 for Figure 7 The diagram shows the fixed base in its upright position. Figure 9 for Figure 7 The diagram shows the fixed base in an inverted state. Figure 10 for Figure 7 The diagram shows a three-dimensional representation of the accommodating cover in an inverted state.

[0037] Explanation of reference numerals in the attached figures: 1: Cooking utensil; 10: Pot body; 11: Storage section; 12: Inner pot; 13: Cooking cavity; 14: Outer shell; 15: Main body of the pot; 16: Base; 17: Through hole of the main body of the pot; 18: Lid; 20: Steam generator; 21: Water container; 22: Steam heating base; 30: Heating element; 31: Main heating section; 32: Connecting end; 34: Heat-conducting plane; 35: Bent end; 36: Straight end; 40: Container cover; 41: Bottom wall of the cover; 42: Side wall of the cover; 43: Drainage section; 44 45: Leakage hole; 46: Cover positioning part; 47: Cover side hole; 50: Drainage pipe; 51: Fixing base; 52: Base side wall; 53: Base bottom wall; 54: Limiting hole; 55: Base positioning part; 56: Central waterproof part; 57: Water-blocking rib; 58: Flanged hole; 69: Recessed water guide part; 60: Bearing area; 61: Mounting platform; 62: Fastener hole; 63: Curved mounting part; 64: First opening; 65: Grounding part; 66: Second opening; 77: Thermal insulation component; 78: Fastener; 79: Thermostat; 70: Terminal block. Detailed Implementation

[0038] The following description provides numerous specific details to offer a more thorough understanding of this application. However, it will be apparent to those skilled in the art that this application can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described to avoid confusion with this application.

[0039] To fully understand this application, a detailed description will be provided in the following description. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. Obviously, the implementation of the embodiments of this application is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this application are described in detail below; however, in addition to these detailed descriptions, this application may have other embodiments.

[0040] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0041] Ordinal numbers such as “first” and “second” used in this application are merely identifiers and have no other meaning, such as a specific order. Moreover, for example, the term “first component” does not imply the existence of a “second component”, and the term “second component” does not imply the existence of a “first component”.

[0042] It should be noted that the terms "upper," "lower," "front," "back," "left," "right," "inner," "outer," and similar expressions used in this document are only used to indicate the relative positional relationship between related parts, and not to limit the absolute position of these related parts. In this document, terms such as "equal" and "same" are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use. Unless otherwise stated, the numerical ranges in this document include not only the entire range within its two endpoints, but also several subranges contained therein.

[0043] This application provides a cooking appliance 1 capable of cooking food. The cooking appliance 1 can be, for example, a rice cooker, an electric pressure cooker, or other cooking appliances 1, and in addition to the function of cooking rice, the cooking appliance 1 can also have various functions such as cooking porridge.

[0044] Taking rice cooker type cooking appliance 1 as an example, refer to Figure 1 The cooking utensil 1 includes a pot body 10 and a lid 18, such as Figure 2 As shown, the pot body 10 has a cylindrical storage section 11 and includes an inner pot 12. The inner pot 12 is typically made of metal and has a circular opening on its upper surface for holding food to be heated, such as rice or soup. The inner pot 12 is placed in the storage section 11, and the pot body 10 also includes a heating device for heating the inner pot 12, thereby heating the inner pot 12 and cooking the food.

[0045] The lid 18 has a shape substantially corresponding to the pot body 10. The lid 18 is closable on the pot body 10; specifically, it is pivotally connected to the pot body 10 via a pivot axis and can freely pivot about the pivot axis between a closed position and an open position relative to the pot body 10, facilitating the closing and opening of the pot body 10. When the lid 18 is closed on the pot body 10, it covers the inner pot 12, forming a cooking cavity 13 between them. The lid 18 typically also has a pot opening sealing ring, which can be made of, for example, rubber material, and is positioned between the lid 18 and the inner pot 12 to seal the cooking cavity 13 when the lid 18 is in the closed position.

[0046] It should be noted that the directional terms used in this article to describe the various parts and components of the cooking appliance 1, such as "up", "down", "above", "below", "upward", "downward", "facing upward", and "facing downward", are relative to the cooking appliance 1 when it is placed horizontally, upright, and the lid 18 is closed.

[0047] The pot body 10 mainly includes an outer shell 14, a main body component 15 located on the upper side of the outer shell 14, and a base 16 located on the lower side of the outer shell 14. The lower end of the outer shell 14 can be connected to the outer periphery of the main body component 15 by a suitable method such as snap-fit, fastener 71 such as screws, or adhesive. The lower end of the outer shell 14 can also be connected to the upper end of the base 16 by a suitable method such as snap-fit, fastener 71 such as screws, or adhesive. The main body component 15 is also connected to the base 16 by fastener 71 such as screws.

[0048] To maintain the humidity of the food inside the cooking cavity 13, the pot body 10 also has an electrically heated steam generator 20, which is located at the rear corner of the pot body 10. The lid 18 has a supplementary steam delivery channel, through which the steam generator 20 is connected to the cooking cavity 13. The high-temperature steam generated by the steam generator 20 can be delivered to the cooking cavity 13 via the supplementary steam delivery channel, thereby maintaining the humidity of the food inside the cooking cavity 13 and giving the food a better texture.

[0049] The steam generating device 20 includes a water container 21 and an electrically heated steam generator base 22. The water container 21 is used to hold water that has been added beforehand, and the steam generator base 22 is located below the water container 21 and is used to heat the water in the water container 21 to generate high-temperature steam. Figure 2 and Figure 3 As shown, the main body 15 of the pot body is provided with a through hole 17, and the steam generating heating base 22 is connected to the main body 15, specifically to the edge of the through hole 17. The water container 21 can be placed in the steam generating heating base 22 through the through hole 17.

[0050] The following is in conjunction with the appendix Figures 4 to 7 The steam generator heating base 22 is described in detail.

[0051] Combination Figure 4As shown, the steam generating heating base 22 includes a heating element 30, a housing shroud 40, and a fixing base 50. The heating element 30 is used to generate heat. The housing shroud 40 is constructed as a shroud-like structure with an upper opening. More specifically, the housing shroud 40 is a shroud-like member with a housing cavity. The housing shroud 40 is used to house the water container 21. Specifically, the housing shroud 40 includes a bottom wall 41 and a side wall 42 connected to the bottom wall 41. The side wall 42 extends around the edge of the bottom wall 41 and closes, thereby forming a shroud-like structure with an upper opening. The bottom wall 41 supports the water container 21 when it is placed inside the housing shroud 40.

[0052] The housing shroud 40 is located above the heating element 30, and the mounting base 50 is located below the heating element 30 and connected to the bottom wall 41 of the shroud. The heating element 30 is clamped between the mounting base 50 and the bottom wall 41 to achieve a close fit between the heating element 30 and the housing shroud 40. The steam generating heating base 22 is composed of three independent components used to heat and support the water container 21. It has a simple structure, and each component is manufactured independently, resulting in low manufacturing costs. The heating element 30 can be fixed by connecting the mounting base 50 and the bottom wall 41, avoiding the need for a separate structure for fixing the heating element 30 and simplifying the product structure.

[0053] The mounting base 50 is detachably connected to the bottom wall 41 of the housing 40, with the heating element 30 positioned between them, allowing the mounting base 50 to detachably fix the heating element 30 to the housing 40. Thus, the heating element 30 can be easily installed and removed by assembling and disassembling the mounting base 50 and the housing 40, facilitating individual replacement of the heating element 30 without requiring replacement of the entire assembly composed of the heating element 30, thereby reducing the maintenance cost of the steam generator 20. Alternatively, the mounting base 50 can be connected to the housing 40 by at least one of the following methods: welding, riveting, extrusion clamping, or integral molding. The mounting base 50 and the housing 40 are not detachable, the connection method is simple, and the connection is more robust and reliable.

[0054] The heating element 30 is detachably fixed to the bottom of the housing 40. The heating element 30 is in close contact with the bottom wall 41 of the housing 40, thus having good thermal conductivity. The heating element 30 can be disassembled and installed by removing and installing the mounting base 50 and the housing 40, which facilitates the replacement of the heating element 30 without the need to replace the entire steam generator 20, thereby reducing the maintenance cost of the steam generator 20.

[0055] Optionally, the heating element 30 can be a heating tube. (See reference...) Figure 3 and Figure 4 The heating element 30 includes a main heating section 31, which serves as the heat source for the heating element 30. When the heating element 30 is energized, the main heating section 31 generates heat, thereby heating the containment cover 40 and producing steam.

[0056] Reference Figure 5 and Figure 6 The side of the main heating section 31 facing the bottom wall 41 of the housing 40 is configured as a heat-conducting plane 34. The heat-conducting plane 34 of the main heating section 31 is attached to the bottom wall 41 of the housing, so that the heating element 30 and the housing 40 are in surface contact, so that the heat on the main heating section 31 can be fully transferred to the bottom wall 41 of the housing, thereby achieving a good heat transfer effect between the heating element 30 and the housing 40.

[0057] The fixed base 50 includes a side wall 51 and a bottom wall 52. The side wall 51 is connected to the bottom wall 52 and is continuously and circumferentially connected to the outer periphery of the bottom wall 52. The main heating section 31 can be located within the cavity formed by the bottom wall 52 and the side wall 51, which not only encloses the side of the main heating section 31, but also shields the upper and lower sides of the main heating section 31. This concentrates the heat generated by the main heating section 31 at the bottom of the bottom wall 41, preventing heat loss and improving the heat transfer efficiency of the steam generator 20. It also prevents the temperature rise of adjacent external components from becoming too high.

[0058] Optionally, refer to Figure 4 The side wall 51 of the mounting base 50 corresponds to the side wall 42 of the cover. Specifically, along the axial direction D parallel to the steam generator 20, the projection of the cover side wall 42 at least partially overlaps with the projection of the side wall 51. The side wall 51 abuts against the bottom wall 41 of the cover and encloses at least a portion of the heating element 30 (specifically, the main heating section 31 of the heating element 30), thereby reducing heat loss from the heating element 30 and improving the thermal efficiency of the steam generator 20. The outer surface of the side wall 51 is flush with the outer surface of the cover side wall 42 in the circumferential direction. The outer surface of the steam generator heating base 22 is neat and without protrusions, and the overall shape of the steam generator heating base 22 is regular, maximizing space utilization when applied to the cooking appliance 1.

[0059] The container cover 40 can be made of metal, especially iron, which has low manufacturing cost and good thermal conductivity. The container cover 40 has thermal conductivity, enabling it to conduct the heat generated by the heating element 30 towards the water container 21, preventing heat loss and improving steam heating efficiency. The bottom wall 41 of the cover primarily functions as a heat conductor, transferring heat to the water container 21 via it. The side walls 42 of the cover also facilitate heat conduction, transferring heat to the water container 21 and preventing heat loss from the water container 21. Iron materials include, for example, aluminized steel sheets, galvanized steel sheets, and stainless steel sheets.

[0060] Furthermore, the containment cover 40 is made of iron, which has relatively low thermal conductivity compared to other heat-conducting materials (such as copper). This results in slower heat transfer from the bottom to the top of the containment cover 40. While ensuring the heat transfer efficiency of the containment cover 40, excessive heat transfer from the top of the containment cover 40 to the heat insulation component 70 can be avoided. Therefore, the heat insulation component 70 can be made of a material with low heat resistance, resulting in lower manufacturing costs. This solution provides a certain degree of protection for the heat insulation component 70, thereby extending the service life of the heat insulation component 70 and other components such as the main body 15 of the pot, making the cooking appliance 1 more reliable and durable.

[0061] The mounting base 50 can be made of a metal material, such as iron, which has low manufacturing cost and good heat reflectivity. The mounting base 50 is made of a heat-reflective metal material. This heat-reflective property allows the mounting base 50 to reflect the heat generated by the heating element 30 towards the housing shroud 40, preventing heat loss and improving steam heating efficiency. Iron materials include, for example, aluminized steel sheets, galvanized steel sheets, and stainless steel sheets. The mounting base 50 can also be made of aluminum sheets.

[0062] Reference Figure 5 The heating element 30 also includes a connecting end 32 for connecting wires. The connecting end 32 is provided with terminals for easy connection of wires. In the assembled state, the main heating section is located below the bottom wall of the cover; and the base bottom wall is located below the main heating section. The main heating section 31 is clamped between the base bottom wall 52 and the cover bottom wall 41 of the fixing base 50. The connecting end 32 is connected to the main heating section 31 and extends downward. Since the main heating section 31, as the main heat source of the heating element 30, is clamped between the fixing base 50 and the cover bottom wall 41, the heat generated by the heating element 30 is mainly concentrated at the cover bottom wall 41. The downward extension of the connecting end 32 keeps the non-heating part of the heating element 30 away from the cover bottom wall 41, thereby preventing overheating damage to the connecting end 32 and the circuit components connected to the connecting end 32.

[0063] The steam generating device 20 also includes a hollow heat insulation component 70. The main body component 15 is provided with a through hole 17 (see...). Figure 3 The heat insulation component 70 is connected to the main body of the pot body 15, specifically to the edge of the through hole 17 in the main body of the pot body. The steam generating heating base 22 of the steam generating device 20 is connected to the pot body 10 via the connection between the housing cover 40 and the heat insulation component 70. The heat insulation component 70 can be connected by a suitable method such as fastener connection, snap-fit, plug-in, welding, or crimping. Optionally, the heat insulation component 70 can be detachably connected to the main body of the pot body 15. For example, the heat insulation component 70 can be connected by screw fastening and snap-fit.

[0064] See Figure 3The heat insulation element 70 is partially located between the top of the housing shroud 40 and the main body 15 of the pot, separating the housing shroud 40 from the main body 15. The heat insulation element 70 also helps prevent heat from the steam generator 20 from being transferred to the main body 15, preventing overheating and deformation of the main body 15. The top of the housing shroud 40 is detachably connected to the heat insulation element 70 via a rotating snap-fit. Alternatively, the bottom of the housing shroud 40 can be detachably connected to the heat insulation element 70 via a snap-fit ​​or other detachable method. The steam generator heating base 22 can be integrally installed onto and removed from the main body 15 connected to the heat insulation element 70, and after removal, the individual components of the steam generator heating base 22 can be independently disassembled and assembled, facilitating the replacement of the heating element 30.

[0065] The steam generating device 20 also includes a thermostat 72, which enables the device to control the temperature of the heating element 30. The thermostat 72 is used to detect the temperature of the heating element 30. The steam generating device 20 may also include a temperature-limiting safety element (not shown), which automatically cuts off the circuit when the temperature of the heating element 30 rises abnormally to prevent overheating. The temperature-limiting safety element may be a fuse.

[0066] To facilitate the assembly of components such as the housing 40 and the heating element 30 with the mounting base 50, the mounting base 50 has a multi-functional structure, see [link to documentation]. Figure 7 , Figure 8 and Figure 9 The upper surface of the mounting base 50 is used to abut against the heating element 30. The mounting base 50 is provided with a limiting hole 53, a positioning part 54, a central waterproof part 57, and a bearing area 61. The bottom wall 52 of the base is provided with the limiting hole 53, the central waterproof part 57, and the bearing area 61. Exemplarily, the central waterproof part 57 is integrally formed in the central region of the bottom wall 52, and the bearing area 61 and the limiting hole 53 are integrally formed in the surrounding region of the central waterproof part 57. The limiting hole 53 is used for the connecting end 32 to pass through and extend beyond the mounting base 50. The positioning part 54 is provided on the outer periphery of the mounting base 50 for positioning the receiving cover 40 in at least the circumferential direction. The bearing area 61 is used to support the main heating section 31 of the heating element 30.

[0067] The connecting end 32 extends beyond the fixed base 50 via the limiting hole 53. The extending direction of the connecting end 32 beyond the fixed base 50 forms an angle α with the bottom wall 52 of the base, where the angle α is 80°≤α≤100°. For example, suitable values ​​for the angle α include 80°, 82°, 85°, 88°, 90°, 92°, 95°, 98°, and 100°. Preferably, the angle α is 90° or close to 90°. With this configuration, the connecting end 32 of the heating element 30 is connected to the wire outside the fixed base 50. The connecting end 32 and the wire do not occupy the space between the fixed base 50 and the housing 40, allowing the fixed base 50 and the housing 40 to be in a compact assembly connection state. This facilitates full contact between the main heating section 31 of the heating element 30 and the housing 40, effectively transferring the heat generated by the main heating section 31 to the housing 40, which is then used to heat the water in the water container 21. This solution improves heat transfer efficiency, thereby enhancing the product's energy efficiency. The steam generating heating base 22 is mounted on the main body 15 of the cooking appliance 1, and the entire device is suspended within the internal space of the cooker body 10. The entire device has a certain relative distance or relative three-dimensional space from the surrounding components. The design of the steam generating heating base 22 in this solution facilitates the assembly of the device and the wiring operations during the assembly process, which can shorten wiring time and improve production efficiency.

[0068] like Figure 5 and Figure 7 As shown, the connecting end 32 includes a bent portion 35 extending in the bending direction and a straight portion 36 extending in the straight line. The bent portion 35 connects the main heating section 31 to the straight portion 36. The bent portion 35 passes through the limiting hole 53, and the straight portion 36 is located outside the fixing base 50. The extending direction of the straight portion forms an angle α with the bottom wall of the fixing base 50. The limiting hole 53 constitutes a clearance area for the bent portion 35 on the fixing base 50, which can avoid interference between the connecting end 32 and the fixing base 50 when passing through the limiting hole 53. The straight portion of the connecting end 32 passes through the limiting hole 53 more easily without increasing the size of the limiting hole 53. The straight portion 36 is set at an angle relative to the fixing base 50, making the structural arrangement easier.

[0069] The limiting hole 53 can be rectangular, rectangular with rounded corners, narrow-width fan-shaped, or fan-shaped with rounded corners. The dimension of the limiting hole 53 along the first direction is larger than the dimension along the second direction. In other words, the length dimension of the limiting hole 53 is greater than its width dimension. The main heating section 31 extends along the outer periphery of the fixing base 50, and correspondingly, the limiting hole 53 extends along the outer periphery of the fixing base 50 in the first direction. The connecting end 32 bends downwards approximately along the outer periphery of the fixing base 50, and the limiting hole 53 has a larger dimension in the outer periphery direction to accommodate the size of the end-bent portion 35.

[0070] The size of the limiting hole 53 is adapted to the dimension of the end bend 35 in the first direction, and the size of the limiting hole 53 is adapted to the dimension of the end bend 35 of the connecting end 32 in the second direction. The limiting hole 53 can position and limit the heating element 30. During assembly, the positioning of the heating element 30 on the fixing base 50 is determined by the positioning of the limiting hole 53, and after assembly, the horizontal movement of the connecting end 32 is restricted, thereby limiting the horizontal movement of the heating element 30. The connecting end 32 and the limiting hole 53 have a small gap, which is used for assembly and has a good limiting effect. The gap can be 0~1mm. The shape of the limiting hole 53 can be set as needed.

[0071] For the illustrated example, the limiting hole 53 is a rectangle with rounded corners, and the heating element 30 is a heating tube. The connecting end 32 is a round tube end. The length of the limiting hole 53 is adapted to the extension length of the end bend 35. The width of the limiting hole 53 is adapted to the diameter of the connecting end 32. The heating element 30 has two connecting ends 32. Optionally, the fixing base 50 has two limiting holes 53, with each connecting end 32 corresponding to one limiting hole 53. If needed and / or desired, the fixing base 50 is provided with one limiting hole 53, and the two connecting ends pass through one limiting hole 53. The connecting ends 32 pass through the corresponding limiting holes 53 and extend beyond the fixing base 50. This restricts the horizontal movement of the connecting ends 32, thereby restricting the horizontal movement of the heating element 30, and the clamping force between the fixing base 50 and the receiving cover 40 also restricts the horizontal movement of the heating element 30.

[0072] Each connection end 32 is provided with a terminal block 73, which is located at the end of the connection end 32 and arranged along the extension direction of the connection end 32. In the illustrated example, the extension direction of the connection end 32 is vertically downward, and the terminal block 73 is arranged vertically. The terminal block 73 is far away from the mounting base 50, making it easier to connect wires, and the connected wires are also far away from the mounting base 50, avoiding interference between the wires and other components on the mounting base 50, such as temperature control devices.

[0073] like Figure 4 and Figure 10As shown, the receiving cover 40 includes a cover positioning portion 45. In the assembled state, the seat positioning portion 54 and the cover positioning portion 45 on the receiving cover 40 are positioned relative to each other. The seat positioning portion 54 and the cover positioning portion 45 are corresponding in the vertical direction and cooperate with each other so that the guide cover and the fixed seat 50 are positioned relative to each other at least in the circumferential direction. The seat positioning portion 54 and the cover positioning portion 45 have a concave-convex fit. The fixed seat 50 can be positioned circumferentially with the receiving cover 40 through the concave-convex structure. During assembly, the positioning portions of the two are aligned to determine the assembly position, which improves assembly efficiency. Furthermore, the concave-convex structure can also limit the relative movement of the fixed seat 50 and the receiving cover 40 in the circumferential direction, keeping their relative positions stable. Exemplarily, as shown in the illustrated embodiment, the seat positioning portion 54 is configured as an upwardly extending rib, and the cover positioning portion 45 is configured as an upwardly recessed groove. Alternatively, the seat positioning portion 54 can be configured as a downwardly recessed notch, and the cover positioning portion 45 can be configured as a downwardly extending rib.

[0074] The central waterproof section 57 may include water-blocking ribs 58, which protrude upwards from the bearing surface and are distributed in a ring. The water-blocking ribs 58 can block the flow of water, and by providing the water-blocking ribs 58, the central waterproof section 57 can be formed by stretching a plate, making the manufacturing process easy and cost-effective. The bottom wall 41 of the cover is provided with a drainage section 43 with drainage holes 44. The drainage section 43 is recessed downwards from the upper side of the bottom wall 41 and protrudes outwards from the bottom wall 41. Specifically, the drainage section 43 protrudes from the lower surface of the bottom wall 41 and partially adapts to the central waterproof section 57 of the fixing base 50. The drainage section 43 can collect water that is not desired to flow into the housing 40 and allow it to flow into the central waterproof section 57 through the drainage holes 44. In addition, the water-blocking ribs 58 can strengthen the structural strength of the fixing base 50.

[0075] Optionally, the cross-section of the water-retaining rib 58 is in the shape of an "∩", i.e., an inverted U-shape. A portion of the plate-like part can be extruded in a direction perpendicular to itself to form a hollow inverted U-shaped rib. The water-retaining rib 58 has good structural strength and is easy to manufacture.

[0076] The central waterproof section 57 is provided with a recessed water-guiding section 60 for guiding water. For example, the recessed water-guiding section 60 is integrally provided in the central depression surrounded by the water-blocking ribs 58. The recessed water-guiding section 60 can guide water downwards, allowing the water to drip downwards and detach from the fixing base 50, preventing water from accumulating in the central waterproof section 57, thereby further preventing electrical components connected to the lower side of the fixing base 50 from contacting water, and further improving the safety of the electrical components. The recessed water-guiding section 60 is a flanged hole 59 extending outwards from the fixing base 50. Specifically, a portion of the wall of the base bottom wall 52 is flanged downwards to form the flanged hole 59. Water can flow downwards along the inner sidewall of the flanged hole 59. The structure of the flanged hole 59 is simple and easy to manufacture.

[0077] The steam generating heating base 22 includes a fastener 71, which securely connects the fixing base 50 to the bottom wall of the cover. The fastener 71 passes through a drain hole 44 and a flanged hole 59 to detachably fasten the fixing base 50 to the receiving cover 40. The inner wall of the flanged hole 59 is provided with threads for connection with the fastener 71. The flanged hole 59 serves both as a passage for water flow and as a through-hole for the fastener 71, providing a dual function. In addition to fastening, the fastener 71 also guides water downwards, causing it to drip down and detach from the fixing base 50. Furthermore, the recessed water guiding portion 60 extends the connection length between the fastener 71 and the fixing base 50, making the connection between the fastener 71 and the fixing base 50 more secure.

[0078] The top portion of the fastener 71 is located within the recessed drainage portion 43. The interior of the drainage portion 43 provides installation space for the fastener 71, which is hidden below the plane of the bottom wall 41 of the housing, making the overall structure of the device more compact. The fastener 71 provides pre-tightening force for the connection between the fixing base 50 and the housing 40, resulting in a tighter fit between the heating element 30 and the bottom wall 41 of the housing 40, and higher heat transfer efficiency.

[0079] The bearing area 61 is located on the outer periphery of the mounting base 50. The bearing area 61 includes the area on the upper surface of the mounting base 50 that abuts against the heating element 30, the area of ​​the mounting platform 62 occupied by the heating element 30, and other areas on the mounting base 50 occupied by the heating element 30 (i.e., the opening area forming the curled mounting portion 64 below). Optionally, the central waterproof portion 57 is located in the middle region of the mounting base 50 and away from the receiving mounting area. The central waterproof portion 57 is far from the heating element 30, which can further prevent water from flowing to the heating element 30 and causing damage to the heating element 30; and the outer periphery of the mounting base 50 has a large circumferential dimension, which facilitates the circumferential arrangement of the heating element 30.

[0080] A limiting hole 53 is provided on the outer periphery of the fixing base 50, specifically in the area of ​​the base bottom wall 52 near the base side wall 51. The base side wall 51 is constructed with a base positioning part 54. The flange hole 59 is far from the connection end 32 of the heating element 30, which can further prevent water from flowing to the connection end 32 and causing damage to the heating element 30. The water-blocking rib 58 has a height dimension H protruding upward from the bearing surface, and the height dimension H is 0.5mm~6mm, for example, the height dimension H is 0.5mm, 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, etc. The central waterproof part 57 can effectively prevent water from flowing towards the heating element 30.

[0081] The bearing area 61 has a bearing surface, and the bearing area 61 is integrally formed with a mounting platform 62 that is recessed downward relative to the bearing surface. The thermostat 72 is located on the lower side of the fixing base 50 and is mounted to the mounting platform 62. The mounting platform 62 is manufactured by integrally forming part of the wall of the fixing base 50, which saves manufacturing materials, simplifies the manufacturing process, and reduces manufacturing costs; and the downwardly recessed mounting platform 62 can improve the structural strength of the fixing base 50, and the mounting platform 62 has a certain structural strength to support and fix the thermostat 72.

[0082] Mounting platform 62 is positioned in the bearing area 61 near the outer periphery of the base wall 52. The mounting platform 62 is far from the central waterproof part 57, which can further prevent water from flowing to the thermostat 72 and causing damage to the thermostat 72; and the outer periphery of the fixing base 50 has a large circumferential dimension, which facilitates the circumferential arrangement of the thermostat 72.

[0083] Mounting platform 62 is recessed downwards relative to the bearing surface and protrudes outwards on the back side of the mounting base 50. Mounting platform 62 can be formed by stretching a sheet material, which is easy to manufacture and has low manufacturing cost. Mounting platform 62 is provided with a fixing structure for thermostat 72. Exemplarily, the fixing structure may include fastener holes 63, through which fasteners 71 pass to lock thermostat 72 to mounting platform 62. The number of fastener holes 63 is two or more. The shape of mounting platform 62 corresponds to the shape of the mounting portion of thermostat 72.

[0084] The bearing area 61 is integrally formed with a coiled mounting portion 64 that curls towards the back of the bearing surface, so that the coiled mounting portion 64 is located below the lower surface of the fixing base 50, and the coiled mounting portion 64 has a conduit extending through its own axial direction. Through the coiled mounting portion 64, a temperature-limiting safety element, such as a fuse, can be installed on the lower side of the fixing base 50, resulting in a simple structure and easy assembly. Exemplarily, the temperature-limiting safety element passes through the conduit of the coiled mounting portion 64. The coiled mounting portion 64 is formed by bending the wall of the fixing base 50 after it has been cut at least radially; specifically, one end of the radially cut wall is cut circumferentially. The first opening 65 formed by cutting the wall extends substantially radially. Manufacturing the coiled mounting portion 64 integrally using a portion of the wall of the fixing base 50 saves manufacturing materials, simplifies the manufacturing process, and reduces manufacturing costs. The radial dimensions of the wall before cutting allow the conduit formed after bending to meet the requirements for assembling a fuse, and the reduced circumferential space occupied after cutting allows for the arrangement of more functional parts in the fixing base 50.

[0085] The mounting base 50 also includes a grounding portion 66, which is disposed on the outer periphery of the mounting base 50 and extends downward. The grounding portion 66 can be connected to a ground wire, ensuring the safety of the lifting device. The grounding portion 66 is formed by cutting from the bottom wall 52 of the base and bending it outward from the mounting base 50. Specifically, the grounding portion 66 is formed by bending the wall of the mounting base 50 downward after it has been cut at least radially, and the second opening 67 formed by cutting the wall extends substantially radially. By integrally molding the grounding portion 66 using a portion of the wall of the mounting base 50, manufacturing materials are saved, the manufacturing process is simplified, and manufacturing costs are reduced. The side wall 51 of the base is connected to the outer periphery of the bottom wall 52 of the base, and the outer surface of the grounding portion 66 can substantially conform to the outer surface of the side wall 51. The outer surfaces of both the grounding portion 66 and the side wall 51 are substantially neat and without protrusions, resulting in a regular overall shape of the mounting base.

[0086] Optionally, refer to Figure 7 and Figure 10 The side wall 42 of the cover is also provided with a side hole 46. The steam generator 20 also includes a drain pipe 47. The side hole 46 is connected to the inner and outer sides of the side wall 42 respectively, and the drain pipe 47 is connected to the side hole 46 for draining the moisture in the containment cover 40 when the steam generator 20 is being tested.

[0087] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of this application. Features described in one embodiment may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0088] This application has been described through the above embodiments. However, it should be understood that the above embodiments are only for illustrative purposes. This application is not limited to the above embodiments. Many variations and modifications can be made based on the teachings of this application, and all such variations and modifications fall within the scope of protection claimed in this application.

Claims

1. An electrically heated steam generator base for use in an electrically heated steam generator, characterized in that, The steam generating heating base includes: A receiving cover, wherein the receiving cover is constructed as an openable mask-shaped structure having a bottom wall and side walls; The heating element includes a main heating section and a connection terminal connected to the main heating section; and A fixing seat is connected to the receiving cover. The fixing seat has a bottom wall and a side wall connected to the bottom wall. The bottom wall is provided with a limiting hole. In the assembled state, The main heating section is located on the lower side of the bottom wall of the cover; and, The bottom wall of the seat is located below the main heating section. The main heating section is sandwiched between the bottom wall of the cover and the bottom wall of the base, and the connecting end extends beyond the fixed base via the limiting hole. The connecting end extends out of the fixed seat and forms an angle α with the bottom wall of the seat, wherein the angle α is: 80°≤α≤100°.

2. The steam generating heating base according to claim 1, characterized in that, The side of the main heating section facing the bottom wall of the cover is configured as a heat-conducting plane, and the main heating section is in contact with the bottom wall of the cover through the heat-conducting plane.

3. The steam generating heating base according to claim 1, characterized in that, The outer surface of the seat sidewall is flush with the outer surface of the cover sidewall in the circumferential direction.

4. The steam generating heating base according to claim 1, characterized in that, The central area of ​​the base wall is integrally formed with a central waterproof section, and the surrounding area of ​​the central waterproof section is integrally formed with a bearing area and the limiting hole, wherein the main heating section is disposed in the bearing area.

5. The steam generating heating base according to claim 4, characterized in that, The bearing area has a bearing surface, and the central waterproof part includes water-blocking ribs that protrude upward from the bearing surface and are distributed in a ring shape.

6. The steam generating heating base according to claim 5, characterized in that, The central depression formed by the water-blocking ribs is integrally provided with a recessed water-guiding part.

7. The steam generating heating base according to claim 6, characterized in that, The recessed water guide portion is a flanged hole extending outward from the fixed base.

8. The steam generating heating base according to claim 7, characterized in that, The inner wall of the flanged hole is threaded.

9. The steam generating heating base according to claim 5, characterized in that, The cross-section of the water-blocking rib is in the shape of "∩"; and / or, the water-blocking rib has a height dimension H protruding upward from the bearing surface, wherein the height dimension H is 0.5mm~6mm.

10. The steam generating heating base according to claim 4, characterized in that, The bottom wall of the cover is provided with a drainage section with a drainage hole. The drainage section is recessed downward from the upper side of the bottom wall of the cover and protrudes outward from the bottom wall of the cover. The drainage section is partially adapted to the central waterproof section of the fixing base.

11. The steam generating heating base according to claim 10, characterized in that, The steam generating heating base includes fasteners that pass through the drain hole and the flange hole of the fixing base to securely connect the fixing base to the receiving cover.

12. The steam generating heating base according to claim 1, characterized in that, The bearing area of ​​the bottom wall of the seat has a bearing surface. The bearing area is integrally formed with a mounting platform recessed downward relative to the bearing surface, the mounting platform being used to mount a thermostat; and / or, The bearing area is integrally formed with a curled mounting portion that curls toward the back of the bearing surface, and the curled mounting portion is used to install a temperature-limiting safety element.

13. The steam generating heating base according to claim 12, characterized in that, The mounting platform is positioned in the bearing area near the outer periphery of the base wall.

14. The steam generating heating base according to claim 1, characterized in that, The connecting end includes a curved end portion and a straight end portion. The curved end portion passes through the limiting hole, and the straight end portion is located outside the fixing seat. The extension direction of the straight end portion has the included angle α with the bottom wall of the seat.

15. The steam generating heating base according to claim 1, characterized in that, The limiting hole is located in the area of ​​the bottom wall of the seat near the side wall of the seat, and / or the size of the limiting hole is adapted to the size of the connecting end in the second direction.

16. The steam generating heating base according to any one of claims 1 to 15, characterized in that, The connection end is provided with a terminal block, which is located at the end of the connection end and arranged along the extension direction of the connection end; And / or the heating element is provided with two connection ends, and the fixing base is provided with two limiting holes, each connection end corresponding to one limiting hole.

17. The steam generating heating base according to any one of claims 1 to 15, characterized in that, The bottom wall and the side wall of the seat form a cavity for accommodating the heating element.

18. The steam generating heating base according to any one of claims 1 to 15, characterized in that, The mounting base is detachably connected to the receiving cover; And / or, the fixing seat is connected to the receiving cover by at least one of the following connection methods: welding, riveting, extrusion clamping, and integral molding.

19. An electrically heated steam generator for use in cooking appliances, characterized in that, The steam generating device includes a water container and an electrically heated steam generating heating base according to any one of claims 1 to 18, wherein the water container is disposed within a housing of the steam generating heating base.

20. A cooking utensil, characterized in that, The cooking appliance includes a pot body, a lid, and an electric steam generator according to claim 19. The lid is closable and is disposed on the pot body, forming a cooking cavity between the two. The lid is provided with a supplementary steam delivery channel. The steam generator is disposed on the pot body and communicates with the cooking cavity through the supplementary steam delivery channel.

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