Steam generating assembly for a cooking appliance and cooking appliance

Abstract

The utility model provides a kind of steam generation assembly for cooking utensil and cooking utensil, steam generation assembly includes heat insulating piece and containing cover, heat insulating piece has heat insulating piece connecting through-hole, the inner side peripheral wall of heat insulating piece connecting through-hole is equipped with first buckling part;Containing cover is cover-shaped piece formed with containing cavity, containing cavity has opening, the outer peripheral of opening is provided with second buckling part;Heat insulating piece and containing cover are connected by first buckling part and second buckling part buckling and connect.According to the steam generation assembly for cooking utensil of the utility model, containing cover and heat insulating piece can be connected by buckling, so that in assembly process, containing cover and the components thereon are combined into a whole with heat insulating piece first, the whole is steam generation assembly, then steam generation assembly is fixed to the pot body of cooking utensil, installation mode does not need additional components, installation step is less, installation process is simple and easy to operate, and production efficiency is higher.

Description

Technical Field

[0001] This utility model generally relates to the technical field of kitchen appliances, and more specifically to a steam generating component for cooking utensils and a cooking utensil. 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 generator consists of 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 in which an electric heating tube is fixed to a cup-shaped component by casting or brazing. The heating element is mounted to a middle plate, which is made of plastic. Insulating material is usually placed between the heating element and the middle plate to prevent the middle plate from overheating.

[0004] The heating element is fixed to the insulating rubber component using multiple insulating ceramics and screws, and then the insulating rubber component is fixed to the middle plate using screws. This installation structure has many parts, a complex assembly process, and low production efficiency. Utility Model Content

[0005] The utility model description section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This utility model description section 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, the first aspect of this utility model provides a steam generating assembly for a cooking appliance, the steam generating assembly including a heat insulation component and a housing cover, the heat insulation component having a heat insulation component connecting through hole, and the inner peripheral wall of the heat insulation component connecting through hole being provided with a first fastening part; The accommodating cover is a cover-shaped member having an accommodating cavity, the accommodating cavity having an opening, and a second fastening part being provided on the outer periphery of the opening; The heat insulation component and the accommodating cover are connected by the first fastening part and the second fastening part engaging.

[0007] According to this solution, the containment cover and the heat insulation component can be connected by a snap-fit ​​mechanism. During assembly, the containment cover and its components are first combined with the heat insulation component to form a single unit, which serves as the steam generating assembly. This steam generating assembly is then fixed to the pot body of the cooking appliance. Compared to traditional fastener-based installation methods, this solution requires no additional parts, involves fewer steps, is simpler and easier to operate, and offers higher production efficiency. The heat insulation component also helps prevent heat transfer from the steam generator to the main pot body, preventing overheating.

[0008] Optionally, the heat insulation component includes a top wall portion, the first fastening portion is configured as a protruding rib extending a certain length circumferentially along the inner peripheral wall of the connecting through hole of the heat insulation component and having a gap between it and the top wall portion, the second fastening portion is configured as a protrusion extending circumferentially along the outer periphery of the opening, the protrusion being able to be engaged with the gap by circumferential rotation.

[0009] According to this solution, when the housing cover is rotated and fastened to the heat insulation component, the protrusion of the housing cover on the outer periphery of the opening is screwed into the gap formed by the rib of the heat insulation component and the top wall portion, thereby limiting the housing cover and the heat insulation component in the axial direction, making the connection stable and easy to install. Furthermore, the setting of the first and second fastening parts will not affect the corresponding connection between the opening of the housing cover and the connecting through hole of the heat insulation component.

[0010] Optionally, the heat insulation component is further provided with a baffle, the baffle being located at the circumferential end of the first fastening portion, and the second fastening portion abutting against the baffle.

[0011] According to this solution, the baffle can prevent the second fastening part from moving relative to the circumference during and after assembly. During assembly, as the housing cover rotates relative to the heat insulation component, the second fastening part of the housing cover is blocked by the baffle, thereby achieving rotational positioning of the housing cover relative to the heat insulation component, preventing misalignment between the housing cover and the heat insulation component due to rotational force, and ensuring a firm and reliable connection between the two.

[0012] Optionally, the accommodating cover is further provided with a positioning piece, which is located on the outer periphery of the opening. In the assembled state, the positioning piece is bent to fix the accommodating cover and the heat insulation component.

[0013] According to this solution, the positioning piece can prevent the first fastening part from moving relative to the first fastening part in the unscrewing direction after assembly. During assembly, after the housing cover rotates to the position relative to the heat insulation component, the vertical positioning piece is bent horizontally and fixed to the heat insulation component, so that the housing cover and the heat insulation component are further connected and fixed. It also prevents the housing cover from moving in the unscrewing direction after assembly, ensuring that the circumferential position of the housing cover and the heat insulation component remains fixed, further stabilizing the connection between the housing cover and the heat insulation component, and helping to prevent the housing cover from detaching from the heat insulation component.

[0014] Optionally, the steam generating assembly further includes a heating element and a mounting base, the housing includes a bottom wall, the heating element is disposed on the outer side of the housing, and the mounting base is connected to the bottom wall and clamps the heating element between the mounting base and the bottom wall.

[0015] According to this solution, the heating element is detachably fixed to the housing via a mounting bracket. Thus, the heating element can be disassembled and assembled by removing and assembling the mounting bracket and the housing. This is convenient and allows for individual replacement of the heating element without the need to replace the entire assembly consisting of the heating element, thereby reducing the maintenance cost of the steam generating assembly.

[0016] Optionally, the heating element includes a heat-conducting body segment, the side of which near the bottom wall of the cover is configured as a heat-conducting plane, which is in contact with the bottom wall of the cover. According to this solution, the heat-conducting body segment of the heating element is attached to the bottom wall of the cover via the heat-conducting plane, allowing the heating element and the cover to contact face-to-face, thereby ensuring good heat transfer between the heating element and the cover.

[0017] The housing includes a side wall connected to the bottom wall of the housing, and the fixing seat has a seat side wall. The outer surface of the housing side wall is substantially flush with the outer surface of the seat side wall. According to this solution, the outer surface of the steam generating component is neat and without protrusions, and the overall shape of the steam generating component is regular. When applied to cooking appliances, the space utilization rate can be maximized.

[0018] Optionally, the heat insulation element is generally annular in shape. According to this solution, the heat insulation element can be fitted onto the housing cover, making manufacturing easier.

[0019] Optionally, the containment cover is at least partially constructed of iron. According to this solution, using iron for the containment cover results in low manufacturing costs, and the relatively low thermal conductivity of iron slows heat transfer from the bottom to the top of the containment cover. While ensuring the heat transfer efficiency of the containment cover, excessive heat transfer from the top of the cover to the insulation component can be prevented. Therefore, the insulation component can be made of a material with low heat resistance, resulting in low manufacturing costs. This solution provides some protection for the insulation component, thereby extending the service life of the insulation component and other components such as the main body of the cookware, making the cooking appliance more reliable and durable.

[0020] Optionally, the heat insulation component further includes a baffle extending in the axial direction, the baffle being adjacent to the power board device of the cooking appliance. According to this design, the baffle prevents heat from the steam generating components from radiating to the power board device, preventing overheating of the power board, and preventing the wires connected to the power board from coming into contact with the high-temperature steam generating components.

[0021] The second aspect of this utility model provides a cooking appliance equipped with the aforementioned steam generating component for cooking appliances, and the cooking appliance further includes a pot body. The outer periphery of the heat insulation component is provided with a snap-fit ​​connection part and a screw connection part; The main body of the pot is provided with a steam generator assembly connection through hole, and a pot body fastening part and a pot body threaded part located around the steam generator assembly connection through hole. The pot body fastening part is engaged with the fastening connection part, and the pot body threaded part is connected to the threaded connection part by fasteners. At the assembly point, the heat insulation component is located between the outer periphery of the accommodating cover and the main body of the pot.

[0022] According to this solution, the containment cover is fixed to the heat insulation component by fastening the second fastening part to the first fastening part, thus forming a steam generating assembly. Then, the heat insulation component is fixed to the main body of the pot body by fastening the fastening part to the pot body and fastening the screw connection part to the pot body. Thus, the steam generating assembly composed of the containment cover and the heat insulation component is connected to the main body of the pot body as a whole. During assembly, the fastening parts of the heat insulation component and the containment cover are aligned and fastened, and the connection parts of the heat insulation component and the main body of the pot body are aligned, fastened, and tightened, thereby realizing the connection and installation between the main body of the pot body, the heat insulation component, and the containment cover. The assembly process is simple, with fewer parts, reliable performance, and reduced manufacturing cost of the pot body. Furthermore, the containment cover is detachable, which facilitates maintenance and replacement of the heating element connected to the containment cover. In addition, the heat insulation component also helps to prevent the heat of the steam generating device from being transferred to the main body of the pot body, preventing the main body of the pot body from overheating.

[0023] Optionally, one of the fastening connection portion and the pot body fastening portion is configured as a buckle with a groove, and the other of the fastening connection portion and the pot body fastening portion is configured as a protrusion, the protrusion being engaged into the groove of the buckle.

[0024] According to this solution, the snap-fit ​​assembly of the heat insulation component and the main body of the pot is easy, the snap-fit ​​structure is simple, and it is convenient for manufacturing. When installing the heat insulation component, the protrusion is aligned with the groove of the buckle and snapped in, which can achieve the initial positioning between the heat insulation component and the main body of the pot. Then, the screw connection part and the screw connection part of the pot are connected in sequence by fasteners to realize the installation between the heat insulation component and the main body of the pot.

[0025] Optionally, the screw connection portion is configured as a fixing piece with a first connection hole, the screw connection portion of the pot body is configured as a screw post with a second connection hole, and the fastener passes through the first connection hole and the second connection hole.

[0026] According to this solution, the heat insulation component and the main body of the pot have a good fastening effect, the fastening structure is simple, and it is easy to manufacture. When installing the heat insulation component, the fixing plate and the main body of the pot can be fixed by fastening the fixing plate with the screw hole with fasteners.

[0027] Optionally, the cooking appliance further includes a pot body, a lid, and a steam generator. The pot body includes the main body component, the steam generator includes the steam generating assembly, the lid is closable on the pot body and forms a cooking cavity between the two, the lid is provided with a supplementary steam delivery channel, the steam generator is used to generate supplementary steam, and the steam generator is connected to the cooking cavity through the supplementary steam delivery channel.

[0028] According to this solution, the steam generated by the steam generator enters the cooking chamber through the supplementary steam delivery channel, thereby moistening the food inside the cooking chamber and maintaining its moisture. Furthermore, the main body of the pot, the heat insulation components, and the housing cover of the steam generator are connected and installed together via snap-fit ​​and fastening connections. This simplifies the assembly process, reduces the number of parts, ensures reliable performance, and lowers the manufacturing cost of the cooking appliance. Attached Figure Description

[0029] The following drawings, which illustrate embodiments of the present invention, are incorporated herein as part of the present invention for understanding the invention. The drawings show embodiments of the present invention and their descriptions, serving to explain the principles of the present invention. In the drawings, Figure 1 This is a top view of a cooking appliance according to a preferred embodiment of the present invention; Figure 2 The local position of the steam generator in the pot body along Figure 1 A schematic diagram of the cross-section intercepted by the centerline AA; Figure 3 for Figure 1 A cross-sectional schematic diagram of the pot body of the cooking appliance in the image shows the installation position of the steam generator in the pot body; Figure 4 An exploded view of the main body of the boiler and the steam generating assembly along the axial direction; Figure 5 for Figure 4 A three-dimensional schematic diagram of the thermal insulation component; Figure 6 for Figure 4 A three-dimensional schematic diagram of the containment cover; Figure 7 This is an installation diagram showing the shroud rotating and snapping onto the insulation component. Along the screwing direction, the second snap-fit ​​part abuts against the retaining rib. Figure 8This is an installation diagram showing the positioning piece connected to the heat insulation component. The positioning piece abuts against the end of the first fastening part opposite to the screwing direction. Figure 9 An exploded view of the steam generator along its axial direction; and Figure 10 for Figure 2 The diagram shows a cross-sectional view of the steam generator.

[0030] Explanation of reference numerals in the attached figures 10: Claypot 11: Storage Department 12: Inner pot 13: Cooking Cavity 14: Outer shell 15: Main body of the pot 1501: Steam generator assembly connection through hole 1502: Annular boss 1503: Clay pot body fastening part 1504: Threaded joint of the pot body 1505: Buckle 1506: Screw Post 1507: Second connecting hole 1508: Groove 16: Base 17: Cover 19: Steam delivery channel for supplementary cooking 20: Steam generating unit 20a Steam Generator Unit 21: Water container 2101: Water container opening 22: Heating element 2201: Thermal Body Section 2202: Connection end 2203: Thermally conductive plane 23: Containment cover 2301: Bottom wall of the cover 2302: Side wall of the cover 2303: Protrusion 2304: First mounting hole 2305: Second fastening part 2306: Positioning Piece 2307: Side hole of the cover 2308: Drainage Connection 2309: Receptacle 24: Fixture 2401: Seat side wall 2402: Base wall 2403: Seat opening 2404: Second mounting hole 25: Thermal insulation components 2501: Snap-fit ​​connection part 2502: Threaded connection part 2503: Side wall portion 2504: Top wall part 2505: First fastening part 2506: Reinforcing bar 2507: Through hole for connecting thermal insulation component 2508: First connecting hole Z: Rotation direction D: Axial direction AX: Axis of the steam generator assembly Detailed Implementation

[0031] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with embodiments of the present invention.

[0032] 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.

[0033] In this document, ordinal numbers such as "first" and "second" used in this invention are merely identifiers and do not have any other meaning, such as a specific order. Moreover, for example, the term "first component" does not imply the existence of "second component," and the term "second component" does not imply the existence of "first component."

[0034] In this document, terms such as "up," "down," "front," "back," "left," and "right" are used only 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, and also include errors that are understandable to those skilled in the art and permissible in manufacturing or use.

[0035] Unless otherwise stated, the numerical ranges in this document include not only the entire range within its two endpoints, but also the subranges contained therein.

[0036] This invention provides a cooking appliance capable of cooking food. The cooking appliance can be, for example, a rice cooker, an electric pressure cooker, or other cooking appliances, and in addition to cooking rice, it can also have various other functions such as cooking porridge.

[0037] Taking rice cookers as an example, refer to Figure 1 The cooking appliance includes a pot body 10 and a lid 17, combined Figure 2 and Figure 3 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.

[0038] The lid 17 has a shape that substantially corresponds to the pot body 10. The lid 17 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 17 is closed on the pot body 10, it covers the inner pot 12, forming a cooking cavity 13 between the lid 17 and the inner pot 12. The lid 17 typically also has a pot opening sealing ring, which can be made of, for example, rubber material, and is disposed between the lid 17 and the inner pot 12 to seal the cooking cavity 13 when the lid 17 is in the closed state.

[0039] 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 connection such as screws, or bonding. 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 connection such as screws, or bonding. The main body component 15 is also connected to the base 16 by fasteners such as screws.

[0040] To maintain the humidity of the food inside the cooking cavity 13, the cooking appliance also includes a steam generator 20, which is located at the rear corner of the pot body 10. The lid 17 has a supplementary steam delivery channel 19, through which the steam generator 20 communicates with 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 19, thereby maintaining the humidity of the food inside the cooking cavity 13 and giving the food a better texture.

[0041] The steam generating device 20 includes a water container 21 and a steam generating assembly 20a. The water container 21 has a water container opening 2101 for holding pre-added water. The steam generating assembly 20a serves as a heat source and is located below the water container 21 to heat the water in the water container 21 to generate high-temperature steam. Figure 3 and Figure 4 As shown, the main body 15 of the pot body is provided with a steam generating assembly connection through hole 1501. The steam generating assembly 20a is connected to the main body 15 of the pot body, specifically to the edge of the steam generating assembly connection through hole 1501. The water container 21 is removably placed on the steam generating assembly 20a via the steam generating assembly connection through hole 1501.

[0042] Reference Figure 4 The steam generating assembly 20a also includes a heat insulation member 25 and a housing cover 23. The heat insulation member 25 has a heat insulation member connection through hole 2507, and the inner peripheral wall of the heat insulation member connection through hole 2507 is provided with a first fastening part 2505. The housing cover 23 is a cover-shaped member forming a housing cavity 2309. The housing cavity 2309 has an opening, and the outer peripheral edge of the opening is provided with a second fastening part 2305. The heat insulation member 25 and the housing cover 23 are connected by fastening the first fastening part 2505 and the second fastening part 2305. The housing cover 23 and the heat insulation member 25 can be fastened together so that during the assembly process, the housing cover 23 and its components are first combined with the heat insulation member 25 to form a whole, which serves as the steam generating assembly 20a, and then the whole steam generating assembly 20a is fixed to the pot body 10 of the cooking appliance. Compared to traditional fastener-based installation methods, this solution requires no additional parts, involves fewer installation steps, is simpler and easier to operate, and offers higher production efficiency. The heat insulation component 25 also helps prevent heat from the steam generator 20 from being transferred to the main body 15 of the pot, thus preventing overheating of the main body 15.

[0043] like Figure 5 As shown, the heat insulation component 25 is generally annular in shape, so that the heat insulation component 25 is constructed with heat insulation component connection through hole 2507. Since the heat insulation component 25 is generally annular in shape, the heat insulation component 25 can be fitted onto the housing cover 23, making manufacturing easier.

[0044] Optionally, refer to Figure 4 and Figure 5 The heat insulation component 25 includes a side wall portion 2503 and a top wall portion 2504. A first fastening portion 2505 is configured as a rib extending circumferentially along the inner peripheral wall of the heat insulation component connecting through hole 2507 and having a gap between it and the top wall portion 2504. A second fastening portion 2305 is configured as a protrusion extending circumferentially along the outer periphery of the opening of the receiving cover 23. The protrusion can be engaged with the rib and the gap between the top wall portion 2504 by circumferential rotation, thereby allowing the receiving cover 23 to be detachably connected to the heat insulation component 25 by rotational engagement. When the housing cover 23 is rotated and fastened to the heat insulation member 25, the protrusion at the outer periphery of the opening of the housing cover 23 screws into the gap formed by the rib of the heat insulation member 25 and the top wall portion 2504, thereby limiting the housing cover 23 and the heat insulation member 25 in the axial direction D, ensuring a stable connection and convenient installation. Furthermore, the arrangement of the first fastening portion 2505 and the second fastening portion 2305 does not affect the corresponding communication between the opening of the housing cover 23 and the connecting through hole 2507 of the heat insulation member. Specifically, during assembly, the protrusion on the housing cover 23 abuts against the top wall portion 2504 in the axial direction D, and then moves circumferentially along the top wall portion 2504 to the gap between the rib and the top wall portion 2504, where it engages. Furthermore, the provision of the first fastening part 2505 and the second fastening part 2305 allows the top of the housing 23 to abut against the top wall 2504 of the heat insulation member 25, thereby making the connection between the housing 23 and the heat insulation member 25 tighter and the heat insulation effect better.

[0045] Optionally, the number of first fastening portions 2505 is at least two, and the number of second fastening portions 2305 is at least two, corresponding to the number of first fastening portions 2505. Optionally, refer to Figure 4 and Figure 5 The heat insulation component 25 is provided with three first fastening portions 2505, which are arranged at circumferential intervals, and the circumferential spacing between adjacent first fastening portions 2505 is the same. Correspondingly, refer to Figure 6 The housing 23 is provided with three second fastening portions 2305, which are arranged at intervals along the circumference, and the spacing between adjacent second fastening portions 2305 along the circumference is the same.

[0046] Combined Figure 7As shown, during assembly, the three second fastening portions 2305 of the housing hood 23 are first moved along the axial direction D (parallel to the axis AX of the steam generating assembly) through the gaps between the three first fastening portions 2505 to the space between the first fastening portions 2505 and the top wall portion 2504 (along the axial direction D). Then, the housing hood 23 is rotated relative to the heat insulation member 25 along the screw-in direction Z, so that each of the second fastening portions 2305 moves circumferentially to the space between the rib and the top wall portion 2504 and engages there, thus achieving the connection between the housing hood 23 and the heat insulation member 25. The arrangement of the first fastening portions 2505 and the second fastening portions 2305 ensures that multiple positions evenly distributed circumferentially between the housing hood 23 and the heat insulation member 25 are connected together, resulting in a balanced and more stable connection structure.

[0047] Optionally, refer to Figure 5 and Figure 6 The heat insulation component 25 is also provided with a baffle 2506. The baffle 2506 is located at at least one circumferential end of the first fastening portion 2505 and extends toward the top wall portion 2504. The second fastening portion 2305 abuts against the baffle 2506 as the receiving cover 23 rotates relative to the heat insulation component 25. Therefore, the baffle 2506 can prevent the second fastening portion 2305 from moving relative to the heat insulation component 25 circumferentially during and after assembly. During assembly, as the receiving cover 23 rotates relative to the heat insulation component 25, the second fastening portion 2305 of the receiving cover 23 is blocked by the baffle 2506, thereby achieving rotational positioning of the receiving cover 23 relative to the heat insulation component 25, preventing misalignment between the receiving cover 23 and the heat insulation component 25 due to rotational force, and ensuring a firm and reliable connection between the two.

[0048] Optionally, combined Figure 7 and Figure 8 The housing 23 is also provided with a positioning piece 2306, which is located on the outer periphery of the opening. In the assembled state, the positioning piece 2306 is bent to fix the housing 23 and the heat insulation member 25. Specifically, the positioning piece 2306 is located between two adjacent second fastening portions 2305. The positioning piece 2306 is bent to fix to the heat insulation member 25 and abuts against the end of the first fastening portion 2505 in the screw-in direction Z (i.e., the end of the first fastening portion 2505 that is last to approach when the second fastening portion 2305 is screwed into the first fastening portion 2505). The positioning piece 2306 can prevent the first fastening portion 2505 from moving relative to the first fastening portion 2505 in the screw-out direction after assembly. During assembly, after the housing 23 is rotated into position relative to the heat insulation component 25, the vertical positioning piece 2306 is bent horizontally and fixed to the heat insulation component 25, which further connects and fixes the housing 23 and the heat insulation component 25, and prevents the housing 23 from moving in the unscrewing direction after assembly, ensuring that the circumferential position of the housing 23 and the heat insulation component 25 remains fixed, further stabilizing the connection between the housing 23 and the heat insulation component 25, and helping to prevent the housing 23 from detaching from the heat insulation component 25.

[0049] It is understandable that both the screw-in direction Z and the screw-out direction are the rotation directions of the housing 23.

[0050] Optionally, the heat insulation member 25 is further provided with a baffle 2509 extending in the axial direction D. The baffle 2509 is disposed at the bottom of the side wall portion 2503 and is adjacent to the power board device of the cooking appliance in the assembled state. The baffle 2509 can prevent the heat of the steam generating assembly 20a from radiating to the power board device, prevent the power board from overheating, and prevent the wires connected to the power board from coming into contact with the high-temperature steam generating assembly 20a.

[0051] Specifically, regarding the other structures of the steam generating assembly 20a.

[0052] Reference Figure 9 and Figure 10 The steam generating assembly 20a also includes a mounting base 24, a housing shroud 23 including a bottom wall 2301, and a heating element 22 disposed on the outer side of the housing shroud 23. The mounting base 24 is connected to the bottom wall 2301 and clamps the heating element 22 between the mounting base 24 and the bottom wall 2301. Specifically, the housing shroud 23 is located above the heating element 22, and the mounting base 24 is located below the heating element 22 and connected to the bottom wall 2301. The heating element 22 is fixed to the housing shroud 23 by being clamped between the mounting base 24 and the bottom wall 2301. The heating element 22 is detachably fixed to the housing shroud 23, thereby allowing for easy removal and replacement of the heating element 22 without replacing the entire assembly consisting of the heating element 22, thus reducing the maintenance cost of the steam generating assembly 20a.

[0053] Optionally, the heating element 22 includes a heat-conducting body segment 2201. The side of the heat-conducting body segment 2201 near the bottom wall 2301 of the housing is configured as a heat-conducting plane 2203. The heat-conducting body segment 2201 is attached to the bottom wall 2301 of the housing through the heat-conducting plane 2203. The heat-conducting body segment 2201 of the heating element 22 is attached to the bottom wall 2301 of the housing through the heat-conducting plane 2203, so that the heating element 22 and the housing 23 are in surface-to-surface contact, thereby ensuring good heat transfer between the heating element 22 and the housing 23.

[0054] The heating element 22 is an electric heating element 22. Optionally, the electric heating element 22 can be an electric heating tube. (See reference...) Figure 9 The heating body section 2201 serves as the heat source for the heating element 22. When the heating element 22 is energized, the heating body section 2201 generates heat, which in turn heats the housing 23, thereby producing steam.

[0055] Reference Figure 9The heating element 22 also includes a connecting end 2202 for connecting wires. The connecting end 2202 is provided with terminals for easy connection of wires. The heating body section 2201 is clamped between the fixing base 24 and the bottom wall 2301 of the cover. The connecting end 2202 is connected to the heating body section 2201 and extends downward through the fixing base 24. Since the heating body section 2201, as the main heat source of the heating element 22, is clamped between the fixing base 24 and the bottom wall 2301 of the cover, and the connecting end 2202, as the wiring part of the heating element 22, is far away from the bottom wall 2301, the surface of the heating element 22 that contacts the housing cover 23 is the surface of the heating body section 2201. This ensures that almost all the heat generated by the heat source is transferred to the housing cover 23, thereby ensuring the heat transfer efficiency of the heating element 22 to the housing cover 23, and the housing cover 23 is heated relatively evenly.

[0056] Optionally, the housing cover 23 further includes a cover side wall 2302 connected to the cover bottom wall 2301, and the fixing seat 24 has a seat side wall 2401. The seat side wall 2401 corresponds to the cover side wall 2302 in position, and the outer surface of the cover side wall 2302 is basically flush with the outer surface of the seat side wall 2401. The outer surface of the steam generating component 20a is neat and without protrusions, and the overall shape of the steam generating component 20a is regular. When it is applied to cooking appliances, the space utilization can be maximized.

[0057] Optionally, refer to Figure 9 The mounting base 24 has a corresponding side wall 2401 and a cover side wall 2302. Specifically, along the axial direction D parallel to the steam generating assembly 20a, the projection of the cover side wall 2302 at least partially overlaps with the projection of the mounting base 2401. The mounting base 2401 abuts against the cover bottom wall 2301 and covers at least a portion of the heating element 22 (specifically, the hot body section 2201 of the heating element 22), thereby reducing heat loss from the heating element 22 and improving the thermal efficiency of the steam generating assembly 20a.

[0058] The housing 23 can be made of metal, especially iron, which has low manufacturing cost and good thermal conductivity and heat reflectivity. The bottom wall 2301 of the housing mainly serves to conduct heat, transferring heat to the water container 21. The side wall 2302 of the housing, in addition to heat conduction, also serves to reflect heat, transferring heat to the water container 21 through the side wall 2302, and reflecting the heat from the water container 21, preventing heat loss. The mounting base 24 can be made of metal, such as iron, which has low manufacturing cost and good heat reflectivity. The mounting base 24 can reflect the heat from the heating element 22 towards the housing 23. Iron materials include, for example, aluminized steel plates and galvanized steel plates, and the mounting base 24 can also be made of aluminum plates, stainless steel plates, etc.

[0059] Furthermore, the containment cover 23 is made of iron. Compared to other heat-conducting materials (such as copper), iron has relatively low thermal conductivity, resulting in slow heat transfer from the bottom to the top of the containment cover 23. While ensuring the heat transfer efficiency of the containment cover 23, excessive heat transfer from the top of the containment cover 23 to the heat insulation component 25 can be avoided. Therefore, the heat insulation component 25 can be made of a material with low heat resistance, resulting in low manufacturing costs. This solution provides a certain degree of protection for the heat insulation component 25, thereby extending the service life of the heat insulation component 25 and other components such as the main body 15 of the pot, making the cooking appliance more reliable and durable.

[0060] Optionally, the bottom wall 2301 of the housing cover 23 and the bottom wall 2402 of the fixing seat 24 can be detachably installed by means of snap-fit, fasteners such as screws, or adhesive bonding, which makes the structure sturdy and easy to disassemble and assemble.

[0061] For example, combining Figure 6 and Figure 9 As shown, the bottom wall 2301 of the housing 23 has a recessed portion 2303 that is recessed from the inside of the housing towards the outside. The bottom wall of the recessed portion 2303 is provided with a first mounting hole 2304, and the combination Figure 10 As shown, a second mounting hole 2404 is provided at the center of the bottom wall 2402 of the mounting base 24. The steam generating assembly 20a also includes fasteners, which are sequentially inserted into the first mounting hole 2304 and the second mounting hole 2404, thereby connecting the bottom wall of the recess 2303 to the bottom wall 2402 of the mounting base 24. When the fasteners are tightened, a preload is generated between the mounting base 24 and the housing 23, resulting in a tighter fit between the heating element 22 and the bottom wall 2301 of the housing 23, and higher heat transfer efficiency. In addition, the connection structure between the mounting base 24 and the housing 23 is reasonably laid out, simple in structure, and easy to disassemble and assemble, reducing the maintenance cost of replacing the heating element 22. The mounting base 24 has a mounting opening 2403, and the connecting end 2202 passes through the mounting opening 2403 and extends to the outside of the mounting base 24, which saves the internal space of the mounting base 24, facilitates the setting of the hot body section 2201, and makes it easy to connect to the wire.

[0062] Optionally, refer to Figure 7 and Figure 8 The side wall 2302 of the cover is also provided with a side hole 2307. The steam generating assembly 20a also includes a drain pipe 2308. The side hole 2307 is connected to the inner and outer sides of the side wall 2302 respectively, and the drain pipe 2308 is connected to the side hole 2307 for draining the moisture in the containment cover 23 when the steam generating assembly 20a is being tested.

[0063] The following is combined with the appendix Figure 4 and Figure 5The connection structure between the steam generating component 20a and the main body of the pot body 15 is described in detail.

[0064] The outer periphery of the heat insulation component 25 is provided with a snap-fit ​​connection portion 2501 and a screw connection portion 2502. The main body component 15 of the pot body is provided with a steam generator assembly connection through hole 1501 and a pot body snap-fit ​​portion 1503 and a pot body screw connection portion 1504 located on the periphery of the steam generator assembly connection through hole 1501. The pot body snap-fit ​​portion 1503 is engaged with the snap-fit ​​connection portion 2501, and the pot body screw connection portion 1504 is connected to the screw connection portion 2502 by fasteners. At the assembly point, the heat insulation component 25 is located between the outer periphery of the receiving cover 23 and the main body component 15 of the pot body.

[0065] The housing cover 23 is fixed to the heat insulation member 25 by rotating and fastening the second fastening part 2305 and the first fastening part 2505, thereby forming a steam generating assembly 20a. Then, the heat insulation member 25 is fixed to the main body of the pot body 15 by fastening the fastening connection part 2501 and the pot body fastening part 1503, and by fasteners connecting the screw connection part 2502 and the pot body screw connection part 1504. Thus, the steam generating assembly 20a composed of the housing cover 23 and the heat insulation member 25 is connected to the main body of the pot body 15 as a whole.

[0066] During assembly, the fastening parts of the heat insulation component 25 and the housing cover 23 are aligned and fastened, and the connecting parts of the heat insulation component 25 and the main body component 15 of the pot are aligned, fastened, and tightened, thereby realizing the connection and installation between the main body component 15 of the pot, the heat insulation component 25, and the housing cover 23. The assembly process is simple, with fewer parts, reliable performance, and reduced manufacturing cost of the pot body 10. Furthermore, the housing cover 23 is detachable, which facilitates maintenance and replacement of the heating element 22 connected to the housing cover 23. In addition, the setting of the heat insulation component 25 also helps to prevent the heat of the steam generating device from being transferred to the main body component 15 of the pot, thus preventing the main body component 15 of the pot from overheating.

[0067] Reference Figure 4 and Figure 5Optionally, one of the fastening connection portion 2501 and the pot body fastening portion 1503 is configured as a snap fastener 1505 with a groove 1508, the opening of the groove 1508 facing the steam generator assembly connection through hole 1501. The other of the fastening connection portion 2501 and the pot body fastening portion 1503 is configured as a protrusion, which engages with the groove 1508 of the snap fastener 1505. The fastening connection portion 2501 is configured as a protrusion, and the pot body fastening portion 1503 is configured as a snap fastener 1505. When installing the heat insulation component 25, aligning the protrusion with the groove 1508 of the snap fastener 1505 and engaging it allows for initial positioning between the heat insulation component 25 and the pot body main component 15. Then, by sequentially connecting the screw connection portion 2502 and the pot body screw connection portion 1504 with fasteners, the installation between the heat insulation component 25 and the pot body main component 15 can be achieved. Therefore, the snap-fit ​​assembly of the heat insulation component 25 and the main body component 15 is easy, the snap-fit ​​structure is simple, and it is convenient for production and manufacturing.

[0068] Optionally, refer to Figure 4 and Figure 5 The screw-connecting portion 2502 is configured as a fixing piece with a first connecting hole 2508. The pot body screw-connecting portion 1504 is provided on the lower surface of the pot body main component 15 and configured as a screw post 1506 with a second connecting hole 1507. Fasteners are inserted into the first connecting hole 2508 and the second connecting hole 1507. By using fasteners to securely connect the fixing piece (i.e., the screw-connecting portion 2502) to the pot body screw-connecting portion 1504, the heat insulation component 25 and the pot body main component 15 can be fixed. The heat insulation component 25 and the pot body main component 15 have a good fastening effect, the fastening structure is simple, and it is easy to manufacture.

[0069] The fastening connection portion 2501 and the pot body fastening portion 1503 are respectively provided on both sides of the heat insulation member 25. In particular, the fastening connection portion 2501 and the pot body fastening portion 1503 can be symmetrically distributed about the center of the heat insulation member 25. Corresponding to the heat insulation member 25, such as Figure 4 As shown, the steam generator assembly connection through hole 1501 is arranged on the downward-protruding annular boss 1502 of the main body 15 of the pot body. The pot body fastening part 1503 is formed on one side of the steam generator assembly connection through hole 1501, and the pot body screw connection part 1504 is provided on the other side of the steam generator assembly connection through hole 1501. The pot body fastening part 1503 and the pot body screw connection part 1504 are symmetrically distributed about the center of the steam generator assembly connection through hole 1501. The arrangement of the heat insulation member 25 and the main body 15 of the pot body makes the distribution of the connection between the heat insulation member 25 and the main body 15 of the pot body more balanced, and also makes the installation of the heat insulation member 25 more secure.

[0070] Furthermore, after the heat insulation component 25 is connected to the main body 15 of the pot body, the heat insulation component 25 is positioned below the annular boss 1502, and the top surface of the heat insulation component 25 is in contact with the bottom surface of the annular boss 1502, forming a surface-to-surface contact. This makes the connection between the heat insulation component 25 and the annular boss 1502 where the steam generating component connection hole 1501 is located more stable, and also facilitates the installation stability of the steam generating component 20a. In addition, after the heat insulation component 25 is installed to the main body 15 of the pot body, the heat insulation component connection hole 2507 corresponds to the steam generating component connection hole 1501, which facilitates the water container 21 of the steam generating component 20a to extend through and deliver steam to the steam delivery channel of the lid 17, thereby maintaining the humidity of the food in the cooking cavity 13.

[0071] like Figure 4 As shown, the screw connection 1504 of the pot body is constructed as a screw post 1506 and formed inside the main body 15 of the pot body, and the fastening part 1503 of the pot body is constructed as a snap fastener 1505 and formed inside the main body 15 of the pot body, so that both the fastening part 1503 and the screw connection 1504 of the pot body can be integrally formed with the main body 15 of the pot body, resulting in low manufacturing cost and precise positioning.

[0072] This utility model also provides a cooking appliance, which includes a pot body 10 and a lid 17 as described above. The lid 17 is closable and disposed on the pot body 10, forming a cooking cavity 13 between the two. The lid 17 is provided with a supplementary steam delivery channel 19, and a steam generator 20 is used to generate supplementary steam. The steam generator 20 is connected to the cooking cavity 13 through the supplementary steam delivery channel 19. The steam generated by the steam generator 20 enters the cooking cavity 13 through the supplementary steam delivery channel 19, thereby moistening the food in the cooking cavity 13 and maintaining the moisture of the food. Furthermore, the pot body main component 15, the heat insulation component 25, and the housing cover 23 of the steam generator assembly 20a on the pot body 10 are connected and installed to each other through snap-fit ​​and fastening connections. The assembly process is simple, there are fewer parts, the performance is reliable, and the manufacturing cost of the cooking appliance is reduced.

[0073] 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 invention. Terms such as “set” appearing herein can refer to either a component being directly attached to another component or a component being attached to another component via an intermediary. A feature 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.

[0074] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this utility model to the described embodiments. Those skilled in the art will understand that many more variations and modifications can be made based on the teachings of this utility model, and all such variations and modifications fall within the scope of protection claimed by this utility model.

Claims

1. A steam generating component for a cooking appliance, characterized in that, The steam generating assembly includes a heat insulation component and a housing cover. The heat insulation component has a heat insulation component connection through hole, and the inner peripheral wall of the heat insulation component connection through hole is provided with a first fastening part. The accommodating cover is a cover-shaped member having an accommodating cavity, the accommodating cavity having an opening, and a second fastening part being provided on the outer periphery of the opening; The heat insulation component and the accommodating cover are connected by the first fastening part and the second fastening part engaging.

2. The steam generating assembly for cooking appliances according to claim 1, characterized in that, The heat insulation component includes a top wall portion. The first fastening portion is configured as a rib extending a certain length circumferentially along the inner peripheral wall of the connecting through hole of the heat insulation component and having a gap between it and the top wall portion. The second fastening portion is configured as a convex portion extending circumferentially along the outer periphery of the opening. The convex portion is engaged with the gap by a circumferential rotation action.

3. The steam generating assembly for cooking appliances according to claim 1, characterized in that, The heat insulation component is also provided with a baffle, which is located at the circumferential end of the first fastening part, and the second fastening part abuts against the baffle.

4. The steam generating assembly for cooking appliances according to claim 1, characterized in that, The accommodating cover is also provided with a positioning piece, which is located on the outer periphery of the opening. In the assembled state, the positioning piece is bent to fix the accommodating cover and the heat insulation component.

5. The steam generating assembly for a cooking appliance according to any one of claims 1 to 4, characterized in that, The steam generating assembly further includes a heating element and a mounting base. The housing includes a bottom wall, the heating element is disposed on the outer side of the housing, and the mounting base is connected to the bottom wall and clamps the heating element between the mounting base and the bottom wall.

6. The steam generating assembly for cooking appliances according to claim 5, characterized in that, The heating element includes a heat-conducting body segment, the side of which near the bottom wall of the cover is configured as a heat-conducting plane, the heat-conducting plane being in contact with the bottom wall of the cover; and / or The accommodating cover 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 cover sidewall being substantially flush with the outer surface of the seat sidewall.

7. The steam generating assembly for a cooking appliance according to any one of claims 1 to 4, characterized in that, The heat insulation component is generally ring-shaped; And / or, the containment cover is at least partially constructed of ferrous material.

8. The steam generating assembly for a cooking appliance according to any one of claims 1 to 4, characterized in that, The heat insulation component is also provided with a baffle extending in the axial direction, the baffle being adjacent to the power board device of the cooking appliance.

9. A cooking appliance, comprising a steam generating assembly for cooking appliances according to any one of claims 1 to 8, the cooking appliance further comprising a pot body, characterized in that, The outer periphery of the heat insulation component is provided with a snap-fit ​​connection part and a screw connection part; The main body of the pot is provided with a steam generator assembly connection through hole, and a pot body fastening part and a pot body threaded part located around the steam generator assembly connection through hole. The pot body fastening part is engaged with the fastening connection part, and the pot body threaded part is connected to the threaded connection part by fasteners. At the assembly point, the heat insulation component is located between the outer periphery of the accommodating cover and the main body of the pot.

10. The cooking utensil according to claim 9, characterized in that, One of the fastening connection part and the fastening part of the pot body is configured as a buckle with a groove, and the other of the fastening connection part and the fastening part of the pot body is configured as a protrusion, which is engaged with the groove of the buckle.

11. The cooking utensil according to claim 9, characterized in that, The screw connection portion is configured as a fixing piece with a first connection hole, the screw connection portion of the pot body is configured as a screw post with a second connection hole, and the fastener passes through the first connection hole and the second connection hole.

12. The cooking utensil according to any one of claims 9 to 11, characterized in that, The cooking appliance also includes a pot body, a lid, and a steam generator. The pot body includes the main body component, the steam generator includes the steam generating assembly, the lid is closable and disposed on the pot body and forms a cooking cavity between the two, the lid is provided with a supplementary steam delivery channel, the steam generator is used to generate supplementary steam, and the steam generator is connected to the cooking cavity through the supplementary steam delivery channel.

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