Steam valve assembly, lid, and household appliance

Abstract

The present application relates to a steam valve assembly, a lid, and a household appliance, including: a lid body having a steam flow passage and an air duct; and a steam valve assembly detachably provided on the lid body, the steam valve assembly having a first passage and a second passage; the first passage is in communication with the steam flow passage, and steam can flow from the steam flow passage through the first passage into the external environment; the second passage is in communication with the air duct, and a cooling medium can flow from the air duct through the second passage into the external environment. The steam valve assembly, the lid, and the household appliance of the present application can be quickly cooled.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and particularly to a steam valve assembly, a lid, and a household appliance. Background Art

[0002] With the accelerating pace of modern life, more and more people choose household appliances with fast cooking methods to process food; the principle is to seal and pressurize the food to increase its cooking temperature and achieve the purpose of shortening the cooking time. However, after the cooking operation of such household appliances is completed, users usually cannot immediately open the lid to dissipate heat from the food. Especially for soups, liquid or viscous foods, since they cannot be directly deflated for rapid cooling, it takes a long waiting time to achieve natural cooling through heat radiation convection between the air and the household appliance, which greatly affects the user experience. Summary of the Invention

[0003] Therefore, in view of the problem of inability to rapidly cool, the present application provides a steam valve assembly, a lid, and a household appliance.

[0004] A lid for circulating steam and a cooling medium, comprising: a lid body having a steam flow channel and an air duct; and a steam valve assembly detachably provided on the lid body, the steam valve assembly having a first channel and a second channel; the first channel is communicated with the steam flow channel, and steam can flow from the steam flow channel through the first channel into the external environment; the second channel is communicated with the air duct, and the cooling medium can flow from the air duct through the second channel into the external environment.

[0005] In one embodiment, the steam valve assembly includes a steam valve body and an air outlet member, the steam valve body has the first channel, and the air outlet member has the second channel;

[0006] The air outlet member is arranged on the outer periphery of the steam valve body, and the lid body is detachably connected to the air outlet member.

[0007] In one embodiment, the air outlet member includes an inner cylinder and a fixed outer ring sleeved outside the inner cylinder, at least a part of the steam valve body penetrates through the inner cylinder, and the second channel is formed between the fixed outer ring and the inner cylinder.

[0008] In one embodiment, the air outlet member includes a plurality of guide vanes, the guide vanes are circumferentially distributed in the second channel, and two adjacent guide vanes divide the second channel into independent sub-channels.

[0009] In one embodiment, the air outlet member is detachably connected to the steam valve body.

[0010] In one embodiment, a plurality of connecting blocks extend radially inwards along the inner wall of the inner cylinder;

[0011] The outer periphery of the steam valve body has a connecting groove adapted to the connecting block.

[0012] In one embodiment, protrusions are formed on the groove wall of the connecting groove, and positioning grooves adapted to the protrusions are formed on at least one of the connecting blocks.

[0013] In one embodiment, the steam valve assembly includes a sealing ring;

[0014] The area where the inner cylinder is connected to the guide vane is recessed to form a mounting groove; the sealing ring is embedded in the mounting groove.

[0015] In one embodiment, a plurality of limiting protrusions are formed radially outwards on the side wall of the inner cylinder, and the limiting protrusions and the mounting groove axially limit the sealing ring respectively;

[0016] A positioning groove is formed on the outer side surface of the sealing ring in the circumferential direction, and a rib adapted to the positioning groove extends radially inwards from the edge of the cover body.

[0017] In one embodiment, the air outlet member includes an insect-proof net; the insect-proof net is arranged on the second channel.

[0018] A steam valve assembly includes: a steam valve body having a first channel for steam to pass through; and an air outlet member arranged on the periphery of the steam valve body, the air outlet member having a second channel for a cooling medium to pass through.

[0019] A household appliance includes: a pot body; and the above-mentioned lid, the lid can cover the pot body to form a closed accommodation cavity.

[0020] In one embodiment, an air inlet is formed on the side wall surface of the pot body, and the air inlet is communicated with the air duct.

[0021] In the above steam valve assembly, lid, and household appliance, by providing that the lid includes a lid body and a steam valve assembly disposed on the lid body, the lid body has a steam flow channel and an air duct; the steam valve assembly has a first channel and a second channel, the first channel communicates with the steam flow channel; steam can flow from the steam flow channel through the first channel into the external environment; the second channel communicates with the air duct, and a cooling medium can flow from the air duct through the second channel into the external environment. The relatively low-temperature cooling medium enters the air duct, absorbs the heat of the lid body, and flows out through the second channel, enabling the lid to obtain continuous cooling, and then being able to quickly reduce the temperature of the food in the accommodation cavity, enhancing the user experience; by integrating the first channel for circulating steam and the air duct for circulating the cooling medium in the steam valve assembly, the structural volume of the steam valve assembly is reduced, ensuring that the structure of the lid can be more compact; by detachably mounting the steam valve assembly on the lid body, modular production can be achieved. The steam valve assembly can be assembled separately, and it is also convenient to disassemble and maintain it from the lid body when the steam valve assembly has problems, reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. is a schematic structural view of an embodiment of the steam valve assembly of the present application;

[0023] Figure 2 FIG. is a schematic structural view of another embodiment of the steam valve assembly of the present application;

[0024] Figure 3 FIG. is a schematic structural view of an embodiment of the air outlet member of the component of the present application, wherein part of the insect net is omitted;

[0025] Figure 4 FIG. is a schematic structural view of another embodiment of the air outlet member of the component of the present application, wherein part of the insect net is omitted to expose the second channel;

[0026] Figure 5 is Figure 4 a view of the air outlet member from another perspective, wherein part of the insect net is omitted to expose the second channel;

[0027] Figure 6 FIG. is a schematic structural view of an embodiment of the steam valve body of the component of the present application;

[0028] Figure 7 is Figure 6 a view of the steam valve body from another perspective;

[0029] Figure 8 is Figure 6 a view of the steam valve body from another perspective;

[0030] Figure 9 FIG. is a schematic structural view of an embodiment of the lid body of the component of the present application;

[0031] Figure 10 Schematic structural diagram of an embodiment of the lid of the present application;

[0032] Figure 11 Exploded view of an embodiment of the lid of the present application;

[0033] Figure 12 Schematic structural diagram of an embodiment of the household appliance of the present application.

[0034] Explanation of reference numerals:

[0035] Steam valve assembly - 100, steam valve body - 10, first channel - 11, connecting groove - 12, protrusion - 13, air outlet member - 20, second channel - 21, inner cylinder - 22, guide vane - 23, fixed outer ring - 24, connecting block - 25, insect net - 26, installation groove - 27, positioning groove - 28, limiting convex block - 29, sealing ring - 30, positioning groove - 31, cover body - 200, rib - 211, air duct - 220, steam flow channel - 230, pot body - 300, accommodation cavity - 310, air inlet - 320. Detailed description of the specific embodiment

[0036] To make the above - mentioned objects, features and advantages of the present application more obvious and understandable, the following will give a detailed description of the specific embodiments of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present application.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0039] In this application, unless otherwise clearly specified and defined, terms such as "installed", "connected", "linked", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or diagonally above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or diagonally below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0041] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0042] In the related art, a large amount of steam is generated when a household appliance processes food. This steam usually exists in the accommodation cavity of the household appliance. During or after the food processing, the steam is discharged into the external environment through a steam valve. Since the user usually cannot immediately open the lid to dissipate the heat of the food after the cooking operation of such household appliances, a cooling medium needs to be introduced into the household appliance. However, it should be noted that the cooling medium that absorbs heat does not enter the accommodation cavity, that is, it does not mix with the steam, and the cooling medium does not directly contact the food for heat exchange. Instead, the cooling medium flows in the pot body and / or the lid body of the household appliance to absorb the heat of the pot body and the lid body, so that the temperature of the pot body and the lid body drops, and then the temperature of the food in the accommodation cavity is rapidly reduced.

[0043] As shown in FIG. 12, in an embodiment of the present application, a household appliance is provided, including a pot body 300 and a lid. The lid can be covered on the pot body 300 to form a closed accommodation cavity 310. Food is cooked in the accommodation cavity 310, generating steam that exists in the accommodation cavity 310.

[0044] The household appliance in the embodiment of the present application can be a rice cooker, an electric pressure cooker or an electric kettle.

[0045] Combined with Figures 1 to 11 As shown in FIG. 12, the lid includes a lid body 200 and a steam valve assembly 100 provided on the lid body 200. The lid is used to circulate steam and the cooling medium. In various embodiments of the present application, the cooling medium can be air or coolant in the external environment, etc. The lid body 200 has a steam flow channel 230 and an air duct 220; the steam valve assembly 100 has a first channel 11 and a second channel 21.

[0046] Among them, the first channel 11 communicates with the steam flow channel 230; steam can flow from the steam flow channel 230 through the first channel 11 into the external environment. Specifically, one end of the steam flow channel 230 is connected to the accommodation cavity 310, and the other end of the steam flow channel 230 is connected to the first channel 11. The steam generated by cooking the food in the accommodation cavity 310 accumulates in the accommodation cavity 310. When the food is cooked or when a certain amount of steam needs to be released during the food cooking process to reduce the pressure in the accommodation cavity 310, the steam valve assembly 100 is controlled to open. The steam enters the first channel 11 through the steam flow channel 230, and after passing through the first channel 11, it flows into the external environment to realize the cooking of the food.

[0047] The second channel 21 communicates with the air duct 220, and the cooling medium can flow from the air duct 220 through the second channel 21 into the external environment. The air duct 220 is generally not connected to the accommodation cavity 310. One port 220a of the air duct 220 can be opened on the top surface of the cover body 200 facing away from the accommodation cavity 310. The port 220a is connected to the second channel 21 and extends along the horizontal extension direction of the cover body 200 until it is connected to the second channel 21. The relatively low-temperature cooling medium enters the air duct 220, absorbs the heat of the cover body 200, and flows out from the second channel 21, so that the lid can obtain continuous cooling, and then can quickly reduce the temperature of the food in the accommodation cavity 310, improving the user experience.

[0048] In the embodiment of the present application, by integrating the first channel 11 for circulating steam and the air duct 220 for circulating the cooling medium in the steam valve assembly 100, the structural volume of the steam valve assembly 100 is reduced, and the influence on the appearance structure design of the lid is small. The steam flow channel 230 corresponding to the first channel 11 and the port of the air duct 220 corresponding to the second channel 21 on the cover body 200 can be in approximately one area, so as to ensure that the structure of the lid can be more compact. By detachably mounting the steam valve assembly 100 on the cover body 200, modular production can be realized. The steam valve assembly 100 can be assembled separately, and it is also convenient to disassemble and maintain it from the cover body 200 when the steam valve assembly 100 has problems, reducing the maintenance cost.

[0049] It should be noted that in each embodiment of the present application, the steam flow channel 230 and the air duct 220 can be separate pipeline structures assembled on the cover body 200, such as metal pipe bodies, rubber pipe bodies, etc., or can be hollow flow channels formed by enclosing the outer shell structure on the cover body 200.

[0050] Those skilled in the art should know that the household appliance of the present application also has other components or structures required to complete the food cooking function. During the process of the cooling medium flowing in the air duct 220, a heat dissipation structure can be designed in the cover body 200 accordingly. For example, the surface of the cover body 200 facing the accommodation cavity 310 is designed as a cooling steel cover 240, and a folded heat exchange metal sheet 250 can be arranged above the cooling steel cover 240, etc. A weight exhaust port 350 can be correspondingly arranged at the top of the accommodation cavity 310. When the steam enters the steam flow channel 230 from the accommodation cavity 310, the gravity of the weight of the weight exhaust port 350 is used to ensure the pressure stability of the high-pressure steam in the accommodation cavity 310 and prevent the high-pressure steam from directly entering the steam flow channel 230 of the steam valve assembly 100, ensuring the use safety of the household appliance. Details are not described herein one by one.

[0051] Reference Figure 1 and Figure 2As shown, a steam valve assembly 100 is provided in one embodiment of the present application; the steam valve assembly 100 is used for circulating steam and cooling medium.

[0052] The steam valve assembly 100 includes a steam valve body 10 and an air outlet 20 . The air outlet 20 is disposed on the periphery of the steam valve body 10 . The steam valve body 10 has a first channel 11 for steam to pass through, and the air outlet 20 has a second channel 21 for cooling medium to pass through.

[0053] The steam valve body 10 can be a conventional electric valve, and its first channel 11 can be controlled to be open or closed; during the cooking process of food, the first channel 11 can be set to a closed state, and all the steam remains in the accommodating chamber 310 to ensure high temperature and high pressure; when cooking is completed, or the food needs to be cooled and the pressure needs to be reduced during cooking, the first channel 11 can be set to an open state, and the steam in the accommodating chamber 310 enters the first channel 11 through the steam flow channel 230, and then flows into the external environment after passing through the first channel 11, thereby cooking the food.

[0054] The first channel 11 can be a pipeline arranged in the middle of the steam valve body 10, such as a metal pipe, or a hollow cavity formed by the hollow structure in the steam valve body 10. The two ends of the first channel 11 are respectively connected to the accommodating cavity 310 and the external environment.

[0055] The first channel 11 generally extends in the axial direction, but the middle portion can be designed into a curved structure as needed. Figure 1 , Figure 2 ,as well as Figures 10 to 12 As shown, the direction of the first channel 11 is generally from the side of the steam valve assembly 100 facing the accommodating chamber 310 to the side of the steam valve assembly 100 away from the accommodating chamber 310 .

[0056] Similarly, the extension direction of the second channel 21 can generally be along the axial direction; the air outlet member 20 is arranged on the periphery of the steam valve body 10, and the cooling medium flows into the second channel 21 from the air duct 220, and the cooling medium that absorbs the heat of the cover body 200 flows from the second channel 21 to the external environment, so that the cover can be continuously cooled, and then the temperature of the food in the accommodating cavity 310 can be quickly reduced; that is, the cooling medium always flows on the outside of the steam valve body 10 to avoid mixing with the steam in the first channel 11 inside the steam valve body 10.

[0057] In some embodiments, the steam valve body 10 and the cover body 200 are detachably connected, thereby achieving relative fixation between the air outlet member 20 and the cover body 200. In other words, the air outlet member 20 is fixed integrally to the steam valve body 10 and the cover body 200. Specifically, corresponding buckles can be provided on the outside of the steam valve body 10, and the cover body 200 can be provided with slots adapted to the buckles to achieve detachable connection.

[0058] In some other embodiments, referring to Figures 1 to 11 as shown, the cover body 200 is detachably connected to the air outlet member 20. That is to say, the steam valve body 10 is fixed to the air outlet member 20 and then fixed to the cover body 200 as a whole.

[0059] The cover body 200 has a through installation hole 210. The ports of the steam flow channel 230 corresponding to the first channel 11 and the air duct 220 corresponding to the second channel 21 on the cover body 200 are both connected to the installation hole 210. At least part of the air outlet member 20 is installed in the installation hole 210, and part of the structure of the steam valve body 10 is also accommodated in the installation hole 210, so that the first channel 11 is communicated with the steam flow channel 230, and steam can flow from the steam flow channel 230 through the first channel 11 into the external environment. The second channel 21 is communicated with the air duct 220, and the cooling medium can flow from the air duct 220 through the second channel 21 into the external environment.

[0060] In some embodiments, referring to Figures 1 to 5 as shown, the air outlet member 20 includes an inner cylinder 22 and a fixed outer ring 24 sleeved outside the inner cylinder 22. At least part of the steam valve body 10 passes through the inner cylinder 22. A second channel 21 is formed between the fixed outer ring 24 and the inner cylinder 22.

[0061] The inner cylinder 22 has a hollow cavity with both ends open. One end of the steam valve body 10 close to the accommodation cavity 310 along the axial direction can be designed as a small-diameter end. One end of the hollow cavity of the inner cylinder 22 is sleeved on the circumferential side of the small-diameter end of the steam valve body 10, and the two can be directly fixed, such as integrally welded or integrally formed by injection molding. It can also be detachably connected as a whole, and can be an interference connection, a snap connection, a screw connection, a threaded connection, etc. between the two.

[0062] A certain gap is maintained between the fixed outer ring 24 and the inner cylinder 22 to form an annular connection channel with a cross-section. This connection channel is the second channel 21. One end of this connection channel along the axial direction is communicated with the air duct 220, and the other end extends until it reaches the outermost side and is communicated with the external environment.

[0063] It can be understood that, referring to Figure 3 as shown, a structural member 24a is usually designed between the fixed outer ring 24 and the inner cylinder 22 to connect the two as a whole.

[0064] In some embodiments, referring to Figure 1 , Figure 2 , Figure 4 , Figure 5 , and Figures 10 to 12 as shown, the air outlet member 20 includes a plurality of guide vanes 23. The guide vanes 23 are evenly distributed in the second channel 21 in the circumferential direction. Adjacent two guide vanes 23 divide the second channel 21 into independent sub-channels 21a.

[0065] One end of the air guiding vane 23 can be fixed on the outer peripheral side of the inner cylinder 22, and the fixing outer ring 24 surrounds one end of the plurality of air guiding vanes 23 away from the inner cylinder 22; the cooling medium flows from the air duct 220 through the second channel 21 into the external environment. Through the guiding of the air guiding vane 23, the cooling medium in the second channel 21 can flow in a preset direction and is divided into multiple strands and flows into the external environment from independent sub-channels 21a respectively, which not only keeps the steam valve assembly 100 having a good appearance effect, but also can make the flow of the cooling medium more efficient.

[0066] The air guiding vane 23, the inner cylinder 22 and the fixing outer ring 24 can be integrally formed by injection molding to reduce costs; the leaf surface of the air guiding vane 23 has a certain arc and is evenly distributed between the inner cylinder 22 and the fixing outer ring 24 in a radial manner in a clockwise or counterclockwise direction to improve the appearance effect. The two ends of the air guiding vane 23 are respectively connected to the inner cylinder 22 and the fixing outer ring 24, which can also play the role of strengthening the overall structural strength.

[0067] In some embodiments, the air outlet member 20 is fixedly connected to the steam valve body 10, and the steam valve assembly 100 is detachably connected to the cover body 200 by the cover body 200 being detachably connected to the air outlet member 20 or by the steam valve body 10 being detachably connected to the cover body 200. The connection method can be snap connection, screw connection or interference connection, etc. When maintenance is required, the steam valve assembly 100 can be taken off the cover body 200 as a whole for maintenance and replacement.

[0068] In other embodiments, the air outlet member 20 is detachably connected to the steam valve body 10. That is to say, the air outlet member 20 is detachably arranged on the peripheral side of the steam valve body 10.

[0069] Reference Figure 2 As shown, an O-ring 50 can be arranged between the inner cylinder 22 and the steam valve body 10. Through size design, an interference fit between the inner cylinder 22 and the steam valve body 10 is realized, so as to realize the fixation of the two.

[0070] Refer to Figure 1 、 Figures 3 to 8 As shown, a plurality of connecting blocks 25 are formed on the inner wall of the inner cylinder 22 extending radially inwards; the outer periphery of the steam valve body 10 has connecting grooves 12 adapted to the connecting blocks 25.

[0071] The connecting block 25 extends radially inward from one end edge near the air guiding vane 23 at the top end of the inner wall of the inner cylinder 22. The connecting groove 12 is formed by radially inwardly recessing from the bottom end of the outer periphery of the steam valve body 10. The groove wall of the connecting groove 12 has a notch 12a, which facilitates the axial insertion of the connecting block 25 into the connecting groove 12. Then, by circumferentially rotating the steam valve body 10 or the air outlet member 20, the connecting block 25 can be inserted into the connecting groove 12 to achieve a clamping fit connection, thereby fixing the inner cylinder 22 and the steam valve body 10 so that they can be axially connected as a whole.

[0072] Thus, the steam valve assembly 100 is detachably mounted on the cover body 200, and the air outlet member 20 and the steam valve body 10 are also designed to be detachably connected, so that the steam valve body 10 and the air outlet member 20 can be separately disassembled and maintained on the cover body 200. Specifically, the user can grasp the steam valve body 10 and pull out the air outlet member 20 and the steam valve body 10 simultaneously upward to separate the steam valve assembly 100 from the cover body 200. Then, by circumferentially rotating the air outlet member 20 or the steam valve body 10 alone, the air outlet member 20 and the steam valve body 10 can be separated, thus facilitating cleaning and maintenance. In addition, on the basis of not separating the steam valve assembly 100 from the cover body 200, the steam valve body 10 can also be directly circumferentially rotated and lifted to be separately removed for disassembly and washing; the user operation is convenient.

[0073] In some embodiments, refer to Figures 4 to 8 As shown, a protrusion 13 is formed on the groove wall of the connecting groove 12, and at least one connecting block 25 is formed with a positioning groove 28 adapted to the protrusion 13. The protrusion 13 can be a smooth protrusion with a circular arc cross-section. The outer contour of the positioning groove 28 is substantially close to that of the protrusion 13. When the air outlet member 20 or the steam valve body 10 is circumferentially rotated and the connecting block 25 is inserted into the connecting groove 12, the protrusion 13 enters the positioning groove 28, which can generate corresponding limiting and tactile feedback. Thus, the user can know that the circumferential rotation has reached the position, and further confirm that the air outlet member 20 and the steam valve body 10 are connected as a whole, improving the user experience. Correspondingly, the process of disassembling the air outlet member 20 and the steam valve body 10 is opposite to this, which will not be elaborated here.

[0074] In some embodiments, refer to Figure 1 、 Figure 2 、and Figures 10 to 12 As shown, the steam valve assembly 100 includes a sealing ring 30; the area where the inner cylinder 22 is connected to the air guiding vane 23 is recessed to form a mounting groove 27.

[0075] Wherein, the sealing ring 30 can be a rubber ring with certain elasticity and hardness. Therefore, the mounting groove 27 should be an annular groove, and the groove width should be slightly larger than the diameter of the sealing ring 30 to accommodate the sealing ring 30.

[0076] Refer to Figure 4 and Figure 5As shown, the air outlet member 20 includes a fixed inner ring 24a and a connecting member 24b. The fixed inner ring 24a is connected to the inner cylinder 22 through the connecting member 24b. One end of the air guiding vane 23 is fixed to the outer peripheral side of the inner cylinder 22 through the fixed inner ring 24a; the area where the inner cylinder 22 is connected to the air guiding vane 23 is also the area where the fixed inner ring 24a is connected to the inner cylinder 22 through the connecting member 24b, and the cross-section among the three is in a U shape; the sealing ring 30 is embedded in the installation groove 27, so as to achieve sealing and prevent the cooling medium in the second channel 21 from entering the steam valve body 10.

[0077] In some embodiments, a plurality of limiting bumps 29 are formed on the side wall of the inner cylinder 22 extending radially outward, and the limiting bumps 29 and the installation groove 27 axially limit the sealing ring 30 respectively.

[0078] Refer to Figure 4 As shown, the sealing ring 30 is sleeved on the inner cylinder 22 and is radially relatively fixed. The limiting bump 29 axially limits the sealing ring 30 upward, and the bottom of the installation groove 27 axially limits the sealing ring 30 downward, so as to realize the relative fixation of the sealing ring 30 and the air outlet member 20 axially.

[0079] Refer to Figure 1 and Figure 2 、 Figures 9 to 11 As shown, a positioning groove 31 is formed on the outer side surface 30a of the sealing ring 30 in the circumferential direction, and the direction from the top to the bottom of the positioning groove 31 is the radial direction perpendicular to the axial direction; the edge of the cover body 200 extends radially inward to form a rib 211 adapted to the positioning groove 31.

[0080] The sealing ring 30 is a rubber ring with a certain hardness. Therefore, after the rib 211 is embedded in the positioning groove 31, the axial fixation of the sealing ring 30 and the cover body 200 can be realized. Also, since the sealing ring 30 and the air outlet member 20 are axially relatively fixed, the axial fixation of the cover body 200 - sealing ring 30 - air outlet member 20 is realized, and finally the detachable connection between the steam valve assembly 100 and the cover body 200 is realized.

[0081] During the disassembly process, the user can hold the steam valve body 10 and apply an upward force, causing the sealing ring 30 to deform and the positioning groove 31 to separate from the rib 211, so as to simultaneously pull out the air outlet member 20, the steam valve body 10 and the sealing ring 30, separating the steam valve assembly 100 from the cover body 200. Then, rotate the air outlet member 20 or the steam valve body 10 circumferentially alone to separate the air outlet member 20 from the steam valve body 10, which is convenient for cleaning and maintenance; when it is not necessary to separate the steam valve assembly 100 from the cover body 200, the steam valve body 10 can be directly rotated circumferentially and lifted to be removed and washed alone, leaving the air outlet member 20 and the sealing ring 30. The user's operation is convenient and the use is more flexible.

[0082] In some embodiments, refer toFigures 1 to 5 As shown, the air outlet member 20 includes an insect-proof net 26; the insect-proof net 26 is arranged on the second channel 21.

[0083] The insect-proof net 26 can be a metal net or a plastic net with a mesh size of 10 to 200 meshes.

[0084] Among them, the insect-proof net 26 can be directly fixed on the second channel 21 by welding or riveting, that is to say, the air outlet member 20 and the insect-proof net 26 are connected as a whole, so as to prevent insects or other foreign objects from entering the second channel 21 during the use of the household appliance.

[0085] Of course, the insect-proof net 26 can also be fixed on the second channel 21 in a detachable manner such as snap connection or screw connection.

[0086] The insect-proof net 26 can be designed into small pieces, and a frame is formed by adjacent guide vanes 23, the inner cylinder 22 and the fixed outer ring 24. The insect-proof net 26 covers the frame, that is, a separate insect-proof net 26 can be arranged for each sub-channel 21a, so as to achieve an aesthetic design. And when the insect-proof net 26 needs to be replaced, only the insect-proof net 26 on the sub-channel 21a needs to be replaced, with low maintenance cost.

[0087] In some embodiments, a cooling medium inlet is provided on the cover body 200, that is, the low-temperature cooling medium in the external environment enters the air duct 220 from the inlet provided on the cover body 200 and flows in the cover body 200 to absorb the heat of the cover body 200.

[0088] In some other embodiments, refer to Figure 12 As shown, an air inlet 320 is provided on the side wall surface of the pot body 300, and the air inlet 320 is communicated with the air duct 220.

[0089] Specifically, when the household appliance is cooled and depressurized by the cooling medium, the cooling medium enters from the air inlet 320 of the pot body 300 to absorb the heat of the pot body 300. However, it should be noted that the cooling medium only flows within the wall surface of the pot body 300 and does not enter the accommodation cavity 310; it can also be understood that there is a corresponding flow channel (not marked) in the pot body 300; one end of the flow channel is the air inlet 320, and the other end is communicated with the air duct 220; the cooling medium enters the air duct 220 from the flow channel and continues to absorb the heat of the cover body 200, and finally flows out to the external environment from the second channel 21, so that the pot body 300 and the lid can obtain continuous cooling, and then the temperature of the food in the accommodation cavity 310 can be quickly reduced, improving the user experience.

[0090] Those skilled in the art should be aware that the household appliances of the present application may also have other components or structures that may be required to complete the food cooking function. For example, a blower 330 and a heat exchange structure 340 may be provided in the pot body 300. The blower 330 agitates the cooling medium to enter the flow channel from the external environment through the air inlet 320, then enters the air duct 220, and finally flows out to the external environment from the second channel 21 to form a cycle. The heat exchange structure 340 may be a folded heat exchange metal sheet provided on the wall surface of the pot body 300 to accelerate the heat dissipation of the pot body 300, etc. Here, they will not be elaborated one by one.

[0091] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0092] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A lid for circulating steam and a cooling medium, characterized in that, Comprising: A cover body (200), the cover body (200) having a steam flow channel (230) and an air duct (220); And a steam valve assembly (100) detachably disposed on the cover body (200), the steam valve assembly (100) having a first channel (11) and a second channel (21); The first channel (11) communicates with the steam flow channel (230), and steam can flow from the steam flow channel (230) through the first channel (11) into the external environment; The second channel (21) communicates with the air duct (220), and a cooling medium can flow from the air duct (220) through the second channel (21) into the external environment; The steam valve assembly (100) includes a steam valve body (10) and an air outlet member (20), the steam valve body (10) having the first channel (11), and the air outlet member (20) having the second channel (21); The air outlet member (20) is disposed on the outer periphery of the steam valve body (10), and the cover body (200) is detachably connected to the air outlet member (20); the air outlet member (20) includes an inner cylinder (22) and a fixed outer ring (24) sleeved outside the inner cylinder (22), at least a part of the steam valve body (10) is disposed through the inner cylinder (22), and the second channel (21) is formed between the fixed outer ring (24) and the inner cylinder (22).

2. The lid according to claim 1, characterized in that, The air outlet member (20) includes a plurality of air guiding vanes (23), the air guiding vanes (23) are circumferentially and uniformly distributed in the second channel (21), and two adjacent air guiding vanes (23) divide the second channel (21) into independent sub-channels.

3. The lid according to claim 1 or 2, characterized in that, The air outlet member (20) is detachably connected to the steam valve body (10).

4. The lid according to claim 1 or 2, characterized in that, The inner wall of the inner cylinder (22) extends radially inward to form a plurality of connecting blocks (25); The outer periphery of the steam valve body (10) has a connecting groove (12) adapted to the connecting blocks (25).

5. The lid according to claim 4, characterized in that, Protrusions (13) are formed on the groove wall of the connecting groove (12), and positioning grooves (28) adapted to the protrusions (13) are formed on at least one of the connecting blocks (25).

6. The lid according to claim 2, characterized in that, The steam valve assembly (100) includes a sealing ring (30); The area where the inner cylinder (22) is connected to the air guiding vanes (23) is recessed to form a mounting groove (27); the sealing ring (30) is embedded in the mounting groove (27).

7. The lid according to claim 6, characterized in that, A plurality of limiting protrusions (29) are formed on the side wall of the inner cylinder (22) extending radially outward, and the limiting protrusions (29) and the mounting groove (27) axially limit the sealing ring (30) respectively; A positioning groove (31) is formed on the outer side surface of the sealing ring (30) in the circumferential direction, and a rib (211) adapted to the positioning groove (31) extends radially inward from the edge of the cover body (200).

8. The lid according to claim 1 or 2, characterized in that, The air outlet member (20) includes an insect-proof net (26); The insect-proof net (26) is disposed on the second channel (21).

9. A household appliance, characterized in that The household appliance includes: A pot body (300); and a lid as claimed in any one of claims 1 to 8, the lid being capable of covering the pot body (300) to form a closed receiving cavity (310).

10. The household appliance according to claim 9, characterized in that, An air inlet (320) is formed on a side wall surface of the pot body (300), and the air inlet (320) is communicated with the air duct (220).

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