Fixing seat, steam generation heating seat, steam generation device and cooking appliance

Abstract

The application discloses a fixing seat, a steam generation heating seat, a steam generation device and a cooking utensil. The steam generation device comprises an electric heating element, the electric heating element has a main heating section and a connecting end connected with the main heating section, and the fixing seat comprises a seat bottom wall. A central waterproof part is integrally formed in a central region of the seat bottom wall. A bearing area and a limiting hole are integrally formed in a surrounding region of the central waterproof part. The bearing area is used for bearing the main heating section, and the limiting hole is used for allowing the connecting end to pass through and extend to outside of the fixing seat. The seat bottom wall has a geometric center. The geometric center is radially distributed from the geometric center to an edge, and the geometric center is circumferentially distributed. The bearing area and the limiting hole are radially distributed inside and outside. Alternatively, the bearing area and the limiting hole are circumferentially adjacent to each other. The fixing seat has a multifunctional structure, one thing with multiple functions, can realize at least the installation and waterproof functions of the electric heating element, simplifies the structure of the product, reduces the manufacturing cost of the product, and improves the assembly efficiency.

Description

Technical Field

[0001] This application relates to the technical field of kitchen appliances, and more specifically to a mounting base, a steam generating heating base, a steam generating device, 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] The steam generating device includes a heating element and a water container. The heating element heats the water in the container to produce steam. The heating element is generally a structure consisting of a cast aluminum heating tube or a brazed heating tube mounted on a heat-conducting component. A temperature control component is connected to the heating element, and this component is secured to the bottom of the heating element using studs of various sizes. The heating element has a complex structure and high manufacturing cost.

[0004] Therefore, a mounting bracket 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 a mounting base for a steam generating device of a cooking appliance. The steam generating device includes a heating element having a main heating section and a connection end connected to the main heating section. The mounting base includes a base bottom wall, a central waterproof portion integrally formed in the central region of the base bottom wall, and a bearing area and a limiting hole integrally formed around the central waterproof portion. The bearing area is used to support the main heating section, and the limiting hole is used for the connecting end to pass through and extend beyond the fixing base; The base wall has a geometric center, and the radial direction from the geometric center toward the edge is circumferential. The bearing area and the limiting hole are distributed inside and outside in the radial direction; or, the bearing area and the limiting hole are distributed adjacently in the circumferential direction.

[0007] According to this solution, the mounting base has multiple functional sections that can position, limit, and fix the heating element, allowing it to be clamped between the mounting base and the housing. The resulting heating assembly has the advantages of simple structure, easy manufacturing, and low production cost. The central waterproof section prevents water flowing onto the mounting 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 mounting base. The mounting base provided by this solution has a multi-functional structure, serving multiple purposes, and can achieve at least the installation and waterproofing functions of the heating element. This simplifies the product structure, reduces manufacturing costs, and improves assembly efficiency. It can prevent damage to the heating element and other electrical components on the mounting base, ensuring the safe use of electrical components and improving the overall safety of the product.

[0008] Optionally, the bearing area 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.

[0009] 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.

[0010] 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.

[0011] Optionally, the mounting base further includes a grounding portion formed by cutting from the bottom wall of the base and bending it outwards. According to this solution, the grounding portion can be connected to a ground wire, ensuring the safety of the lifting device; by integrally molding the grounding portion using a portion of the mounting base wall, manufacturing materials are saved, the manufacturing process is simplified, and manufacturing costs are reduced.

[0012] Optionally, the fixing base includes a side wall connected to the outer periphery of the base bottom wall, and the outer surface of the grounding part generally conforms to the outer surface of the side wall. According to this solution, the outer surfaces of both the grounding part and the side wall are generally neat and without protrusions, and the overall shape of the fixing base is regular.

[0013] 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.

[0014] 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.

[0015] 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.

[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 inner wall of the flanged hole is threaded. 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.

[0018] Optionally, the water-blocking rib has a height dimension H protruding upward from the bearing surface, wherein the height dimension H is 0.5mm to 6mm. According to this solution, the central waterproof section can effectively prevent water from flowing towards the heating element.

[0019] Optionally, the steam generating device further includes a housing cover disposed on the upper side of the heating element; the fixing base also includes a side wall connected to the outer periphery of the base bottom wall; the side wall is configured with a positioning part for positioning with the housing cover positioning part in the assembled state. According to this solution, the mutual positioning of the fixing base and the housing cover allows the positioning parts of both to be aligned during assembly to determine the assembly position, resulting in higher assembly efficiency; and it also restricts the relative movement of the fixing base and the housing cover in the circumferential direction, keeping their relative positions stable.

[0020] Optionally, the seat positioning part is configured as an upwardly extending rib or a downwardly recessed notch. According to this solution, the fixing seat can be positioned circumferentially with the receiving cover through the concave-convex structure. The structure of the seat positioning part is simple and easy to manufacture.

[0021] Optionally, the mounting platform is a recessed portion facing downward relative to the bearing surface and an outwardly protruding portion formed on the back side of the fixing seat. The mounting platform is provided with a fixing structure for the thermostat. According to this solution, the mounting platform can be formed by stretching a plate, which is easy to manufacture and has low manufacturing costs.

[0022] Optionally, the mounting base further includes a side wall that is continuously and circumferentially connected to the outer periphery of the base bottom wall, the base bottom wall and the side wall forming a cavity for accommodating the heating element. According to this design, the mounting base can prevent heat generated by the heating element from diffusing outside the mounting 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.

[0023] Optionally, the mounting base is made of a heat-reflective metal material. According to this design, the mounting base has heat-reflective properties, which can reflect the heat generated by the heating element towards the housing, preventing heat loss and improving the heating efficiency of the steam.

[0024] According to another aspect of this application, a steam generating heating base is provided for a steam generating device for a cooking appliance, the steam generating heating base comprising: An electric heating element, the electric heating element having a main heating section and a connection terminal connected to the main heating section; A housing cover, the housing cover being disposed above the heating element and including a bottom wall of the cover; and According to any of the above-described fixing bases, the fixing base is disposed on the lower side of the heating element. In the assembled state, the heating element is clamped between the bottom wall of the base and the bottom wall of the cover to achieve a close connection between the heating element and the housing cover, and the connecting end passes through the limiting hole and extends beyond the fixed base.

[0025] 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. Furthermore, the mounting base allows for the positioning, limiting, and fixing of the heating element, and it is waterproof. The heating element is clamped between the mounting base and the bottom wall of the cover, ensuring a tight fit and higher heat transfer efficiency. The heating element is secured simply by connecting the mounting base and the bottom wall of the cover, eliminating the need for a separate structure for fixing the heating element and simplifying the product structure.

[0026] Optionally, the housing cover includes a cover positioning part, and the seat sidewall of the fixed base is provided with a seat positioning part. In the assembled state, the cover positioning part and the seat positioning part are positioned relative to each other. According to this solution, the mutual positioning of the fixed base and the housing cover allows the positioning parts of the two to be aligned during assembly to determine the assembly position, resulting in higher assembly efficiency; it also restricts the relative movement of the fixed base and the housing cover in the circumferential direction, keeping their relative positions stable.

[0027] 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.

[0028] Optionally, the steam generating heating base includes fasteners that pass through the drain hole and the flanged hole of the fixing base to detachably fasten 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 fasteners pass, providing a dual-purpose design. The fasteners, in addition to fastening, 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 assembled 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.

[0029] Optionally, the fixing base and the receiving cover are fixed together by at least one of the following connection methods: welding, riveting, extrusion clamping, and integral molding. According to this solution, the fixing base and the receiving cover are not detachable, the connection method is simple, and the connection is more secure and reliable.

[0030] Optionally, the seat positioning part and the cover positioning part are in a concave-convex fit. According to this solution, the fixed seat can be positioned in the circumferential direction with the receiving cover through the concave-convex structure. During assembly, the positioning parts of the two are aligned to determine the assembly position, resulting in higher assembly efficiency. Furthermore, the concave-convex structure can also restrict the relative movement of the fixed seat and the receiving cover in the circumferential direction, keeping their relative positions stable.

[0031] The shroud is constructed as a cover-shaped member with a top opening and a accommodating cavity. According to this solution, the shroud can provide space for accommodating a water container, and the bottom wall and side walls of the shroud can transfer heat to the water container, thereby improving the heating efficiency of the water container.

[0032] Optionally, the steam generating heating base further includes a temperature controller, which is mounted on a mounting platform on the fixed base. According to this design, the fixed base is equipped with a temperature controller, enabling the device to control the temperature of the heating element.

[0033] Optionally, the heating element is clamped between the base wall and the cover wall to achieve a close fit between the heating element and the housing cover. According to this solution, the heating element is clamped between the base wall and the cover wall, resulting in a tight fit between the heating element and the housing cover, thus improving heat transfer efficiency.

[0034] Optionally, the heating element is welded to the lower side of the bottom wall of the cover, or the heating element is welded to the upper side of the bottom wall of the base, and the fixing base is connected to the receiving cover. According to this solution, the heating element can be fixed by welding, resulting in a more secure and reliable fixation.

[0035] Optionally, the housing cover further includes a side wall connected to the bottom wall of the cover, and the fixing seat has a seat side wall, the outer surface of which is circumferentially aligned with the outer surface of the cover side wall. 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, maximizing space utilization when applied to cooking appliances.

[0036] According to another aspect of this application, a steam generating device is provided for a cooking appliance. The steam generating device includes a water container and a steam generating heating base according to any of the preceding aspects, wherein the water container is disposed within a housing cover of the steam generating heating base. According to this solution, the steam generating heating base can heat and support the water container, and the steam generating heating base has the technical effects of the steam generating heating base described above.

[0037] Optionally, the steam generating device further includes a hollow heat insulation component for connecting to the main body of the cooking appliance. The top of the receiving cover is detachably connected to the heat insulation component by a rotating snap-fit ​​mechanism. According to this solution, the steam generating heating base can be integrally installed onto and detached from the main body of the cooking appliance connected to the heat insulation component. Furthermore, after detachment, each component of the steam generating heating base can be independently disassembled and assembled, facilitating the replacement of the heating element.

[0038] According to another aspect of this application, a cooking appliance is provided, the cooking appliance comprising a pot body, a lid body, and a steam generating device according to the above, the lid body being openable and closable and forming a cooking cavity between the two, the lid body being provided with a supplementary steam delivery channel, and the steam generating device being disposed in the pot body and communicating with the cooking cavity through the supplementary steam delivery channel.

[0039] According to this solution, the steam generated by the steam generator enters the cooking chamber through the supplementary steam delivery channel, thereby moistening the materials inside the cooking chamber and maintaining their moisture. Furthermore, the steam generator heating base can heat and support the water container, thus possessing the aforementioned technical effects.

[0040] Optionally, the pot body further includes a main body component and a heat insulation component. The main body component has a through hole, and the heat insulation component is connected to the through hole. The steam generator is connected to the pot body through the connection between the housing cover and the heat insulation component. According to this solution, the heat insulation component helps prevent heat from the steam generator from being transferred to the main body component, thus preventing the main body component from overheating and deforming. Attached Figure Description

[0041] 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.

[0042] In the attached image: Figure 1 An exploded perspective view of a cooking appliance according to a preferred embodiment of this application; Figure 2 for Figure 1 The cross-sectional view of the pot body is shown below; Figure 3 for Figure 2 Enlarged view of section A; Figure 4 for Figure 2 The diagram shows a cross-sectional view of the steam generator. Figure 5 for Figure 2 An exploded perspective view of the steam generator shown. Figure 6 for Figure 2 An exploded three-dimensional cross-sectional view of the steam generator shown. Figure 7 for Figure 2 The steam generator shown is in an inverted 3D view. Figure 8 for Figure 7 The diagram shows the mounting base in its upright position. Figure 9 for Figure 7 The image shows a three-dimensional view of the mounting base in an inverted state; Figure 10 for Figure 7 The diagram shows the condenser in an inverted position.

[0043] 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 component of the pot; 16: Base; 17: Through hole in the main body component of the pot; 18: Lid; 20: Steam generator; 21: Water container; 22: Steam heating base; 30: Heating element; 31: Main heating section; 32: Connection end; 34: Heat-conducting surface; 40: Cover; 41: Bottom wall of the cover; 42: Side wall of the cover; 43: Drainage section; 44: Drainage hole. 45: Cover positioning part; 46: Cover side hole; 47: Drainage pipe; 50: Fixing seat; 51: Seat side wall; 52: Seat bottom wall; 53: Limiting hole; 54: Seat positioning part; 57: Central waterproof part; 58: Water-blocking rib; 59: Flanged hole; 60: Recessed water guide part; 61: Bearing area; 62: Mounting platform; 63: Fastener hole; 64: Curved mounting part; 65: First opening; 66: Grounding part; 67: Second opening; 70: Thermal insulation component; 71: Fastener; 72: Thermostat Detailed Implementation

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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”.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] To maintain the humidity of the food inside the cooking cavity 13, the pot body 10 also has a steam generator 20, which is located at the rear corner of the pot body 10. The lid 18 has a supplementary steam delivery channel 19, 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 through the supplementary steam delivery channel 19, thereby maintaining the humidity of the food inside the cooking cavity 13 and giving the food a better texture.

[0055] The steam generator 20 includes a water container 21 and a steam heating base 22. The water container 21 holds pre-added water, and the steam heating 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.

[0056] The following is in conjunction with the appendix Figures 4 to 7 The steam generator heating base 22 is described in detail.

[0057] 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 member with a top opening and a housing cavity. The housing shroud 40 is used to house a 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 member with a top opening. The bottom wall 41 supports the water container 21 when it is placed inside the housing shroud 40. The fixing 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 circumferentially connected to the outer periphery of the bottom wall 52.

[0058] 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 housing shroud 40, for example, connected to the bottom wall 41 of the shroud. The heating element 30 is disposed between the mounting base 50 and the bottom wall 41 of the shroud. For example, the heating element 30 is clamped between the mounting base 50 and the bottom wall 41 of the shroud to achieve a close fit between the heating element 30 and the housing shroud 40. Alternatively, the heating element 30 is welded to the lower side of the bottom wall 41 of the shroud, or the heating element 30 is welded to the upper side of the bottom wall 52 of the base. The steam generating heating base 22 is composed of three independent components for heating and supporting 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 of the shroud, avoiding the need for a separate structure for fixing the heating element 30 and simplifying the product structure.

[0059] The mounting base 50 is detachably connected to the bottom wall 41 of the housing, with the heating element 30 positioned between them, allowing the mounting base 50 to detachably fix the heating element 30 to the housing 40. This allows for easy assembly and disassembly of the heating element 30 by removing and installing the mounting base 50 and the housing 40, facilitating individual replacement of the heating element 30 without requiring the replacement of the entire assembly composed of the heating element 30, thus reducing the maintenance costs of the steam generator 20. Alternatively, the mounting base 50 and the housing 40 can be fixed together by at least one of the following connection methods: welding, riveting, screwing, crimping, or integral molding. In this method, the mounting base 50 and the housing 40 are not detachable, resulting in a simpler and more secure connection.

[0060] 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.

[0061] 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.

[0062] Reference Figure 5 and Figure 6 The side of the main heating section 31 facing the bottom wall 41 of the cover 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 cover, so that the heating element 30 and the housing cover 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 cover, thereby achieving a good heat transfer effect between the heating element 30 and the housing cover 40.

[0063] The main heating section 31 can be located within the cavity formed by the bottom wall 52 and the side wall 51 of the seat, 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.

[0064] 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 circumferentially aligned with the outer surface of the cover side wall 42. 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.

[0065] 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.

[0066] 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.

[0067] 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.

[0068] 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. The main heating section 31 is clamped between the fixing base 50 and the bottom wall 41 of the cover. 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 bottom wall 41, the heat generated by the heating element 30 is mainly concentrated at the bottom wall 41 of the cover. The downward extension of the connecting end 32 keeps the non-heating part of the heating element 30 away from the bottom wall 41 of the cover, thereby preventing overheating damage to the connecting end 32 and the circuit components connected to the connecting end 32.

[0069] 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.

[0070] 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.

[0071] 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.

[0072] 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 central waterproof part 57 is integrally formed in the central area of ​​the base bottom wall 52, and the bearing area 61 and the limiting hole 53 are integrally formed in the surrounding area 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. The base bottom wall 52 has a geometric center, which is radial from the geometric center toward the edge and circumferential around the geometric center. Optionally, as illustrated in the example, the heating element 30 has more than one circumference. In the radial direction, the main heating section 31 extends between the two connecting ends 32. Correspondingly, the bearing area 61 and the limiting hole 53 are radially distributed inside and outside. Specifically, in the radial direction, a portion of the bearing area 61 is located between the inner limiting hole 53 and the outer limiting hole 53. Alternatively, the length of the heating element 30 is less than one circumference. In this case, the heating element 30 is arc-shaped or C-shaped, and the two connecting ends 32 are adjacent in the circumferential direction. Correspondingly, the bearing area 61 and the limiting hole 53 are circumferentially adjacent.

[0073] The mounting base 50 has multiple functional parts that position, limit, and fix the housing 40 and the heating element 30, making the connection between the mounting base 50 and the housing 40 more secure and reliable. The mounting base 50 abuts against the heating element 30, clamping it between the mounting base 50 and the housing 40. This results in a heating assembly with advantages of simple structure, easy manufacturing, and low production cost. The central waterproof section 57 prevents water flowing onto the mounting base 50 from flowing towards the heating element 30 and other electrical components; water is contained within the central waterproof section 57, preventing water accumulation on the mounting base 50. The mounting base 50 provided in this solution has a multi-functional structure, serving multiple purposes, and can be connected to multiple adjacent components, simplifying the product structure, reducing manufacturing costs, and improving assembly efficiency. It can prevent damage to the heating element 30 and other electrical components on the mounting base 50, ensuring the safety of the electrical components and improving the overall safety of the product.

[0074] The connecting end 32 passes through the limiting hole 53 and extends beyond the fixing base 50. The heating element 30 has two connecting ends 32, and optionally, the fixing base 50 has two limiting holes 53. Each connecting end 32 corresponds 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 end 32 passes through the corresponding limiting hole 53 and extends beyond the fixing base 50. This can limit the horizontal movement of the connecting end 32, thereby limiting the horizontal movement of the heating element 30, and the clamping force between the fixing base 50 and the housing cover 40 can also limit the horizontal movement of the heating element 30. This saves space inside the fixing base 50, which is beneficial for the setting of the main heating section 31 and facilitates connection with wires. The connecting end 32 bends downward from the main heating section 31, and the bent part is inside the limiting hole 53. Optionally, the limiting hole 53 is a rectangle with rounded corners, and its length is adapted to the extension length of the bent portion. The width of the limiting hole 53 is adapted to the diameter of the connecting end 32. The connecting end 32 and the limiting hole 53 have a small gap for assembly and good limiting function. The gap can be 0~1mm. The shape of the limiting hole 53 can be set as needed.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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 has internal 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-purpose 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.

[0080] 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 preload 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.

[0081] 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.

[0082] A limiting hole 53 is provided on the outer periphery of the fixing base 50, and a base positioning part 54 is constructed on the side wall 51 of the base. The central waterproof part 57 is located away from the limiting hole 53. 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.

[0083] 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.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] 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.

[0089] 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 the 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. This application has been described through the above embodiments; however, it should be understood that the above embodiments are for illustrative purposes only, and 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. A mounting base for a steam generating device, the steam generating device comprising an electric heating element having a main heating section and a connection end connected to the main heating section, characterized in that, The fixing base includes a base bottom wall, the central area of ​​which is integrally formed with a central waterproof part, and the surrounding area of ​​the central waterproof part is integrally formed with a bearing area and a limiting hole. The bearing area is used to support the main heating section, and the limiting hole is used for the connecting end to pass through and extend beyond the fixing base; The base wall has a geometric center, and the radial direction from the geometric center toward the edge is circumferential. The bearing area and the limiting hole are distributed inside and outside in the radial direction; or, the bearing area and the limiting hole are distributed adjacently in the circumferential direction.

2. The fixing base according to claim 1, characterized in that, The bearing area 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.

3. The fixing base according to claim 2, characterized in that, The mounting platform is positioned in the bearing area near the outer periphery of the base wall.

4. The fixing base according to claim 1, characterized in that, The fixing base also includes a grounding part formed by cutting from the bottom wall of the base and bending it outwards.

5. The fixing base according to claim 4, characterized in that, The fixed base includes a side wall connected to the outer periphery of the base bottom wall, and the outer side of the grounding part is substantially aligned with the outer side of the side wall.

6. The fixing base according to claim 1, 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.

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

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

9. The fixing base according to claim 8, characterized in that, The cross-section of the water-blocking rib is in the shape of "∩"; and / or, the inner wall of the flange hole is provided with threads.

10. The fixing base according to claim 6, characterized in that, The water-blocking rib has a height dimension H that protrudes upward from the bearing surface, and the height dimension H is 0.5mm~6mm.

11. The fixing base according to claim 1, characterized in that, The steam generating device further includes a housing cover disposed on the upper side of the heating element; the fixing base also includes a side wall of the base connected to the outer periphery of the base bottom wall; The seat sidewall is provided with a seat positioning part for positioning itself relative to the cover positioning part on the accommodating cover in the assembled state.

12. The fixing base according to claim 11, characterized in that, The seat positioning part is configured as an upwardly extending rib or a downwardly recessed notch.

13. The fixing base according to claim 2, characterized in that, The mounting platform is a recessed portion that faces downward relative to the bearing surface and forms an outward protrusion on the back side of the fixing seat. The mounting platform is provided with a fixing structure for the temperature controller.

14. The fixing base according to any one of claims 1 to 13, characterized in that, The mounting base also includes a side wall, which is continuously and circumferentially connected to the outer periphery of the bottom wall of the base. The bottom wall and the side wall form a cavity for accommodating the heating element.

15. The fixing base according to any one of claims 1 to 13, characterized in that, The mounting base is made of a heat-reflective metal material.

16. A steam generating heating base for cooking appliances, characterized in that, The steam generating heating base includes: An electric heating element, the electric heating element comprising a main heating section and a connection terminal connected to the main heating section; A housing cover, the housing cover being disposed above the heating element and including a bottom wall of the cover; and The fixing base according to any one of claims 1 to 15 is disposed on the lower side of the heating element; In the assembled state, the heating element is located between the bottom wall of the base and the bottom wall of the cover, and the connecting end passes through the limiting hole and extends beyond the fixed base.

17. The steam generating heating base according to claim 16, characterized in that, The accommodating cover includes a cover positioning part, and the seat positioning part is provided on the side wall of the fixed seat. In the assembled state, the cover positioning part and the seat positioning part are positioned relative to each other.

18. The steam generating heating base according to claim 16, 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.

19. The steam generating heating base according to claim 18, 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 detachably fasten the fixing base to the receiving cover. Alternatively, the fixing base and the receiving cover are fixed together by at least one of the following connection methods: welding, riveting, extrusion clamping, and integral molding.

20. The steam generating heating base according to claim 17, characterized in that, The seat positioning part and the cover positioning part are in concave-convex fit; and / or the receiving cover is constructed as a cover-shaped member with a top opening and a receiving cavity.

21. The steam generating heating base according to claim 16, characterized in that, The steam generating heating base also includes a temperature controller, which is mounted on the mounting platform of the fixed base.

22. The steam generating heating base according to claim 16, characterized in that, The heating element is clamped between the bottom wall of the seat and the bottom wall of the cover to achieve a close connection between the heating element and the housing cover.

23. The steam generating heating base according to claim 16, characterized in that, The heating element is welded to the lower side of the bottom wall of the cover. Alternatively, the heating element is welded to the upper side of the base wall, and the fixing base is connected to the receiving cover.

24. The steam generating heating base according to any one of claims 16 to 23, characterized in that, The accommodating cover also includes a cover sidewall connected to the bottom wall of the cover, and the fixing seat has a seat sidewall, the outer surface of the seat sidewall being aligned with the outer surface of the cover sidewall in the circumferential direction.

25. A steam generating device for cooking appliances, characterized in that, The steam generating device includes a water container and a steam generating heating base according to any one of claims 16 to 24, wherein the water container is disposed within a housing of the steam generating heating base.

26. The steam generating apparatus according to claim 25, characterized in that, The steam generating device also includes a hollow heat insulation component, which is used to connect to the main body of the cooking appliance. The top of the accommodating cover is detachably connected to the heat insulation component by a rotating snap-fit.

27. A cooking utensil, characterized in that, The cooking appliance includes a pot body, a lid, and a steam generator according to claim 25 or 26. 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.

28. The cooking utensil according to claim 27, characterized in that, The pot body also includes a main body component and a heat insulation component. The main body component has a through hole, and the heat insulation component is connected to the through hole. The steam generating device is connected to the pot body through the connection between the housing cover and the heat insulation component.

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