Exhaust structure, cover assembly and cooking appliance

Abstract

The application provides an exhaust structure, a cover assembly and a cooking utensil, wherein the exhaust structure comprises: a shell, which is made of plastic or metal; an exhaust passage, which is arranged in the interior of the shell, has an air inlet and an air outlet, and comprises a first exhaust passage and a second exhaust passage; a buffer cavity, which is located between the first exhaust passage and the second exhaust passage; an overflow passage, which is arranged in the shell and has a first end in communication with the buffer cavity; and a liquid collecting structure, which is arranged in the shell and in communication with a second end of the overflow passage. The technical scheme of the application can effectively solve the problem of easy pot overflow in the related art.

Description

Technical Field

[0001] This invention relates to the field of small household appliance technology, and more specifically, to an exhaust structure, a cover assembly, and a cooking appliance. Background Technology

[0002] To make cooking easier for users, there is an increasing variety of cooking appliances, such as rice cookers, electric pressure cookers, and electric slow cookers. When cooking certain foods, such as porridge or soup, these appliances sometimes overflow during the venting process. The main reason for this overflow is that liquid porridge and thick soup form bubbles, which escape through the vent. These bubbles often carry broth or liquid, causing the overflow. Overflowing spills make the surface of the appliance dirty and can easily burn the user.

[0003] In related technologies, a bubble-breaking structure is installed on the steam valve to prevent the soup inside the container from flowing out. However, when the bubble-breaking structure is in use, the liquid produced when the bubbles break can accumulate in the bubble-breaking device. If venting continues, the liquid can easily be blown out of the vent, thus posing a high risk of overflow. Summary of the Invention

[0004] The main objective of this invention is to provide a venting structure, a lid assembly, and a cooking appliance to solve the problem of easy overflow in related technologies.

[0005] To achieve the above objectives, according to one aspect of the present invention, an exhaust structure is provided, comprising: a housing, the housing being made of plastic or metal; an exhaust channel disposed inside the housing, the exhaust channel having an inlet and an outlet, the exhaust channel including a first exhaust channel and a second exhaust channel; a buffer chamber located between the first exhaust channel and the second exhaust channel; a flow channel disposed in the housing, the first end of the flow channel communicating with the buffer chamber; and a liquid collection structure disposed in the housing and communicating with the second end of the flow channel.

[0006] Applying the technical solution of this invention, the gas in the cooking cavity enters the first exhaust channel through the air inlet, then enters the buffer chamber, and is finally discharged through the second exhaust channel and the air outlet. During this process, some bubbles carrying broth are present in the gas. These bubbles are broken in the first exhaust channel, the buffer chamber, and the second exhaust channel, achieving gas-liquid separation. Some liquid remains in the buffer chamber. Due to the inclusion of a flow channel and a liquid collection structure, the liquid in the buffer chamber can flow into the liquid collection structure through the flow channel. This liquid collection structure effectively collects the liquid in the exhaust channel and the buffer chamber, preventing liquid from accumulating in the exhaust channel and avoiding its accumulation at the air outlet due to gas flow. Since the liquid has been collected by the liquid collection structure, this portion of liquid will not be discharged with the gas, thus effectively reducing the risk of overflow.

[0007] Furthermore, the liquid collection structure is detachably connected to the housing. This detachable design allows users to easily remove the liquid collection structure for cleaning.

[0008] Furthermore, the liquid collection structure includes a box and a first tube. The box has an internal receiving cavity. The first end of the first tube is connected to the box, and the second end of the first tube is connected to the housing and communicates with the flow channel. The aforementioned receiving cavity can collect liquid. Liquid can flow into the receiving cavity through the first tube, thereby effectively reducing the amount of liquid in the buffer cavity.

[0009] Furthermore, the exhaust structure also includes a second pipe body, which is disposed within the housing and surrounds the outside of the flow channel. The second pipe body is connected to the first pipe body. The connection between the first and second pipe bodies described above makes the connection and fixation more reliable.

[0010] Furthermore, the first and second pipe bodies are connected by a threaded structure, which includes mating internal and external threads. One of the internal and external threads is located on the first pipe body, and the other is located on the second pipe body. This threaded connection method is simple, easy to install, and provides good fixation.

[0011] Furthermore, the venting structure also includes a first seal located between the housing and the liquid collection structure. This first seal effectively seals the space between the first and second pipe bodies, preventing liquid from overflowing.

[0012] Furthermore, the flow channel is located on the bottom wall of the shell, and the liquid collection structure is located below the shell. The location of the flow channel on the bottom wall of the shell facilitates the flow of liquid into the channel, making liquid collection easier. Simultaneously, the lower space of the shell is relatively large, so placing the liquid collection structure at the bottom of the shell facilitates disassembly and allows liquid to flow more easily into the liquid collection structure.

[0013] Furthermore, the width of the buffer chamber is greater than the width of the first exhaust channel and the width of the second exhaust channel; the first exhaust channel and / or the second exhaust channel include multiple channel segments connected in sequence, forming a reversible flow channel, and the multiple channel segments are arranged concentrically or in parallel; the depth of the buffer chamber is greater than the depth of the first exhaust channel and the second exhaust channel; the exhaust structure also includes a clearance chamber, which is connected to the exhaust port. The above configuration allows the liquid after bubble breakage to collect in the buffer chamber, facilitating user handling. The reversible flow channel allows for a longer exhaust channel length, thus requiring a longer flow time for the bubbles in the exhaust channel. The concentric or parallel arrangement allows for a more rational and compact arrangement of the channel segments, enabling the arrangement of more channel segments within a limited space. The greater depth of the buffer chamber than the depth of the first exhaust channel and the second exhaust channel allows the liquid after bubble breakage to collect in the buffer chamber, facilitating user handling. The clearance chamber is connected to the exhaust port and exhaust pipe. Part of the exhaust pipe structure is located inside the clearance chamber. On the one hand, the clearance chamber provides space for fixing the exhaust pipe. On the other hand, the clearance chamber can also buffer the gas, preventing excessive impact force when the gas is discharged through the pressure relief valve.

[0014] According to a second aspect of the present invention, a cover assembly is provided, comprising a cover and a vent hole disposed on the cover, characterized in that the cover assembly further comprises a venting structure disposed below the cover, the venting structure being the aforementioned venting structure, with the vent outlet communicating with the vent hole. The aforementioned venting structure can effectively break bubbles and prevent overflow. Therefore, the cover assembly having this structure also possesses the aforementioned advantages.

[0015] According to a third aspect of the present invention, a cooking utensil is provided, comprising a lid assembly, characterized in that the lid assembly is the aforementioned lid assembly. The aforementioned lid assembly is capable of effectively breaking bubbles and is easy for the user to clean; therefore, the cooking utensil having this lid assembly also possesses the aforementioned advantages. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 An exploded structural schematic diagram of an embodiment of the exhaust assembly according to the present invention is shown;

[0018] Figure 2 It shows Figure 1 A three-dimensional structural diagram of the exhaust assembly;

[0019] Figure 3 It shows Figure 1 A top view of the exhaust assembly;

[0020] Figure 4 It shows Figure 1 A cross-sectional schematic diagram of the exhaust assembly;

[0021] Figure 5 It shows Figure 1 A three-dimensional structural diagram of the liquid collection structure of the exhaust assembly;

[0022] Figure 6 It shows Figure 1 A three-dimensional structural diagram of the second seal of the exhaust assembly;

[0023] Figure 7 An exploded structural diagram of an embodiment of the cover assembly according to the present invention is shown;

[0024] Figure 8 It shows Figure 7 A three-dimensional structural diagram of the cover assembly;

[0025] Figure 9 A three-dimensional structural schematic diagram of an embodiment of a cooking appliance according to the present invention is shown;

[0026] Figure 10 It shows Figure 9 A cross-sectional view of the cooking utensils; and

[0027] Figure 11 It shows Figure 10 A magnified view of part A of the cooking utensil.

[0028] The above figures include the following reference numerals:

[0029] 10. Shell; 11. Second tube; 12. Connecting part; 13. Mounting groove; 20. Exhaust channel; 21. Air inlet; 22. Air outlet; 23. First exhaust channel; 24. Second exhaust channel; 25. Channel section; 26. Arc-shaped connecting section; 30. Buffer chamber; 40. Flow channel; 50. Liquid collection structure; 51. Box body; 511. Receiving cavity; 52. First tube; 60. First seal; 70. Clearance cavity; 71. Return hole; 72. One-way valve; 80. Cover; 81. Exhaust hole; 82. Exhaust pipe; 83. Pressure relief valve; 90. Second seal; 91. First sealing section; 92. Second sealing section. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0032] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0033] like Figures 1 to 5 As shown, in this embodiment, the exhaust structure includes: a housing 10, an exhaust channel 20, a buffer chamber 30, a flow channel 40, and a liquid collection structure 50. The housing 10 is made of plastic or metal. The exhaust channel 20 is disposed inside the housing 10 and has an inlet 21 and an outlet 22. The exhaust channel 20 includes a first exhaust channel 23 and a second exhaust channel 24. The buffer chamber 30 is located between the first exhaust channel 23 and the second exhaust channel 24. The flow channel 40 is disposed in the housing 10, and its first end communicates with the buffer chamber 30. The liquid collection structure 50 is disposed in the housing 10 and communicates with the second end of the flow channel 40.

[0034] Applying the technical solution of this embodiment, the gas in the cooking cavity enters the first exhaust channel 23 through the air inlet 21, then enters the buffer chamber 30, and is discharged through the second exhaust channel 24 and the air outlet 22. During this process, some bubbles carrying broth are present in the gas. These bubbles are broken in the first exhaust channel 23, the buffer chamber 30, and the second exhaust channel 24, achieving gas-liquid separation. Some liquid remains in the buffer chamber. Due to the presence of the flow channel 40 and the liquid collection structure 50, the liquid in the buffer chamber 30 can flow into the liquid collection structure through the flow channel 40. The liquid collection structure 50 effectively collects the liquid in the exhaust channel 20 and the buffer chamber 30, preventing liquid from accumulating in the exhaust channel 20 and avoiding the liquid in the exhaust channel 20 from accumulating at the air outlet 22 under the action of gas flow. Since the liquid has been collected by the liquid collection structure 50, this portion of liquid will not be discharged with the gas, thus effectively reducing the risk of overflow.

[0035] Of course, in embodiments not shown in the figure, the exhaust channel may also include a third exhaust channel, a fourth exhaust channel, etc. In this case, a buffer chamber may be provided only between the first and second exhaust channels, or multiple buffer chambers may be provided. A buffer chamber may be provided between two adjacent exhaust channels. The above-mentioned configuration method can be selected according to the actual situation. All of the above-mentioned configuration methods can effectively achieve the function of preventing bubble breaking and overflow.

[0036] To facilitate cleaning of the liquid collection structure 50 by the user, such as Figure 1 , Figure 4 as well as Figure 5 As shown, in this embodiment, the liquid collection structure 50 is detachably connected to the housing 10. This detachable design allows the user to easily remove the liquid collection structure 50 for cleaning. It effectively prevents liquid from remaining in the liquid collection structure 50 for too long, which could lead to liquid deterioration and affect cooking results.

[0037] like Figure 1 , Figure 4 as well as Figure 5 As shown, in this embodiment, the liquid collection structure 50 includes a box body 51 and a first tube body 52. ​​The box body 51 has an internal receiving cavity 511. The first end of the first tube body 52 is connected to the box body 51, and the second end of the first tube body 52 is connected to the housing 10 and communicates with the flow channel 40. The receiving cavity 511 can collect liquid. Liquid can flow into the receiving cavity 511 through the first tube body 52, thereby effectively reducing the amount of liquid in the buffer cavity 30. In this embodiment, the box body 51 is cylindrical, and the bottom surface of the box body 51 has a flat portion. The flat portion facilitates the placement of the liquid collection structure 50 after disassembly, making its placement more stable. Furthermore, the box body 51 has a low height, which reduces the space occupied during cooking, making the overall structure more compact.

[0038] like Figure 1 , Figure 4 as well as Figure 5 As shown, in this embodiment, the exhaust structure further includes a second pipe 11, which is disposed on the housing 10 and surrounds the outside of the flow channel 40. The second pipe 11 is connected to the first pipe 52. The connection between the first pipe 52 and the second pipe 11 makes the connection more reliable and less prone to loosening.

[0039] To allow users to easily disassemble, such as Figure 1 , Figure 4 as well as Figure 5 As shown, in this embodiment, the first pipe body 52 and the second pipe body 11 are connected by a threaded structure. The threaded structure includes mating internal threads and external threads. The internal threads are located on the first pipe body 52, and the external threads are located on the second pipe body 11. The threaded connection method is simple, easy to install, and provides good fixation.

[0040] Considering the sealing between the first and second pipe bodies, such as Figure 1 As shown, the venting structure also includes a first seal 60, which is located between the housing 10 and the liquid collection structure 50. The first seal 60 can effectively seal and prevent liquid from overflowing from the connection between the first pipe 52 and the second pipe 11.

[0041] like Figure 3 As shown, in this embodiment, the flow channel 40 is located on the bottom wall of the housing 10, and the liquid collection structure 50 is located below the housing 10. The location of the flow channel 40 on the bottom wall of the housing 10 makes it easier for liquid to flow into the flow channel 40, facilitating liquid collection. Simultaneously, the space below the housing 10 is relatively large, therefore, placing the liquid collection structure 50 at the bottom of the housing 10 facilitates disassembly and allows liquid to flow more easily into the liquid collection structure 50.

[0042] like Figure 3 As shown, in this embodiment, the width of the buffer chamber 30 is greater than the width of the first exhaust channel 23 and the width of the second exhaust channel 24. Bubbles enter the first exhaust channel 23 through the air inlet 21. In the first exhaust channel 23, the bubbles will break due to contact with the sidewalls or interaction with each other, and then move into the buffer chamber 30. Because the buffer chamber 30 is wider, the flow velocity of the bubbles decreases when they move into it, making gas-liquid separation easier. As the bubbles continue to move and enter the exhaust channel 20, the flow velocity increases from a large space to a small space, thus improving the bubble-breaking effect.

[0043] The buffer chamber 30 is an enlarged structure relative to the first exhaust channel and the second exhaust channel. The buffer chamber can be a long, narrow structure, such as rectangular or elliptical, in which case the width of the buffer chamber refers to its minimum width. Of course, as... Figure 2 As shown, in this embodiment, the buffer cavity 30 is circular, and the width of the buffer cavity 30 is the diameter of the circle.

[0044] To achieve a longer exhaust channel and thus a better bubble-breaking effect, such as Figure 2 and Figure 3 As shown, in this embodiment, the first exhaust channel 23 and the second exhaust channel 24 include multiple channel segments 25 connected in sequence. These multiple channel segments 25 form a reversible flow channel, and are concentrically arranged. The reversible flow channel allows for a longer exhaust channel 20, thus requiring a longer flow time for the bubbles within the exhaust channel 20. The concentric arrangement allows for a more rational and compact arrangement of the channel segments 25, enabling the arrangement of more channel segments 25 within a limited space.

[0045] It should be noted that the aforementioned zigzag flow channel refers to a channel with a bend between two adjacent channel segments, and the included angle between the two adjacent channel segments is less than 90°, preferably less than or equal to 45° or arranged in parallel.

[0046] like Figure 3 As shown, in this embodiment, two adjacent channel segments 25 are connected by an arc-shaped connecting segment 26. The arc-shaped connecting segment 26 makes the connection between the two adjacent channel segments 25 more gradual, thereby allowing the gas to flow more smoothly.

[0047] Of course, in embodiments not shown in the figures, regarding the number of channel segments, the first exhaust channel may have multiple channel segments, while the second exhaust channel may have only one channel segment; or, the first exhaust channel may have only one channel segment, while the second exhaust channel may have multiple channel segments. Regarding the arrangement of the channel segments, the multiple channel segments are arranged in parallel. The arrangement of the channel segments needs to be selected according to the different shapes of the housing. When the housing is rectangular, the channel segments are arranged in parallel, which makes the arrangement of the channel segments more reasonable and allows for the arrangement of more channel segments, thereby making the exhaust channel longer.

[0048] like Figure 2As shown, in this embodiment, the depth of the buffer chamber 30 is greater than the depth of the first exhaust channel 23 and the second exhaust channel 24. This arrangement allows the liquid generated after the bubbles break to flow along the exhaust channel 20 into the buffer chamber 30, facilitating user cleaning. In this embodiment, the buffer chamber 30 is 10 mm lower than the first exhaust channel 23 and 10 mm lower than the second exhaust channel 24. Specific settings can be determined according to actual conditions. This structure helps retain some liquid within the buffer chamber. Of course, as long as the buffer chamber is 5 mm to 15 mm lower than the first exhaust channel and 5 mm to 15 mm lower than the second exhaust channel, the above requirements can be met.

[0049] like Figure 2 As shown, in this embodiment, the exhaust structure also includes a clearance cavity 70, which is connected to the exhaust port 22. The clearance cavity 70 provides space for the installation of the exhaust pipe and also serves to buffer the gas.

[0050] like Figure 3 As shown, in this embodiment, the first exhaust channel 23 is provided with a total of six channel segments 25, such as... Figure 3 As shown, in the first exhaust channel 23, the channel segment 25 located at the bottom (farthest from the buffer chamber) is the longest, and the channel segment 25 located at the top (closest to the buffer chamber) is the shortest. Furthermore, the lengths of multiple channel segments 25 decrease sequentially from bottom to top. The second exhaust channel 24 has a total of five channel segments 25.

[0051] like Figures 1 to 4 As shown, in this embodiment, a reflux hole 71 is provided at the bottom of the clearance cavity 70, and a one-way valve 72 is provided at the reflux hole 71. The reflux hole 71 allows the liquid in the clearance cavity 70 to flow back into the container, preventing excessive liquid in the clearance cavity 70 and affecting the overflow prevention effect. The one-way valve 72 includes a column, a limiting member provided at the first end of the column, and a sealing plate provided at the second end of the column. The sealing plate is located below the housing 10, and the limiting member is located inside the housing 10. The column passes through the reflux hole, and the diameter of the reflux hole is larger than the diameter of the column, but smaller than the diameter of the limiting member and the diameter of the sealing plate.

[0052] To improve the sealing performance of the exhaust structure, such as Figures 1 to 4 as well as Figure 6As shown, in this embodiment, the exhaust structure further includes a second sealing element 90. A mounting groove 13 is provided on the housing 10, and the second sealing element 90 is installed within the mounting groove 13. The second sealing element 90 includes a first sealing section 91 surrounding the exhaust channel 20 and the buffer chamber 30. The second sealing element 90 effectively seals the exhaust channel 20, preventing gas from the cooking chamber from entering the housing 10 from other locations and affecting the overflow prevention effect. The second sealing element 90 also includes a second sealing section 92 located between two adjacent channel sections 25. The second sealing section 92 effectively prevents gas from flowing between the various channel sections 25, thereby improving the sealing effect.

[0053] like Figure 7 and Figure 8 As shown, according to a second aspect of this embodiment, a cover assembly is provided, including a cover 80 and a vent 81 disposed on the cover 80. The cover assembly further includes a venting structure disposed below the cover 80, the venting structure being the aforementioned venting structure, with an outlet 22 communicating with the vent 81. The aforementioned venting structure can effectively break bubbles and prevent overflow. Therefore, the cover assembly having this structure also possesses the aforementioned advantages.

[0054] like Figure 7 and Figure 8 As shown, in this embodiment, a plurality of connecting portions 12 are provided on the outer side wall of the housing 10. Each connecting portion 12 includes a first threaded hole and a second threaded hole corresponding to the first threaded hole on the cover 80. The user can use screws to pass through the first threaded hole and the second threaded hole to fix the cover 80 and the housing 10. Of course, in an embodiment not shown in the figure, the cover and the housing can also be fixed by a snap-fit ​​structure.

[0055] like Figure 7 and Figure 8 As shown, in this embodiment, the cover assembly further includes an exhaust pipe 82 disposed at the exhaust port 81 and a pressure limiting valve 83 disposed on the exhaust pipe 82. The pressure limiting valve 83 can control the pressure inside the container, thereby effectively shortening the cooking time of the food and improving the taste of the cooked food.

[0056] like Figures 9 to 11 As shown, according to a third aspect of this embodiment, a cooking appliance is provided, including a lid assembly, characterized in that the lid assembly is the aforementioned lid assembly. The aforementioned lid assembly can effectively break bubbles and is easy for the user to clean; therefore, the cooking appliance having this lid assembly also has the aforementioned advantages.

[0057] like Figures 9 to 11As shown, in this embodiment, the cooking appliance includes a container, a lid assembly is mounted on the container, and the housing 10 is located inside the container, i.e., the exhaust structure is located inside the container. A gap is provided between the outer wall of the housing 10 and the inner wall of the container. When the pressure limiting valve 83 is opened, the gas in the container enters from the air inlet 21, flows through the exhaust channel 20 to the clearance chamber 70, and then exits from the exhaust pipe 82. Because the exhaust channel 20 is relatively long, the time for bubbles or food residue to travel from the container to the exhaust pipe is prolonged. When the pressure limiting valve 83 is in the open state, the pressure in the exhaust channel 20 is less than the pressure inside the container. Since the sealing plate of the one-way valve 72 is located on the outer side of the bottom surface of the housing 10, i.e., inside the container, the sealing plate is under greater pressure, thus blocking the return hole 71. When the pressure limiting valve 83 is in the closed state, the pressure inside the container and the pressure inside the exhaust channel are equal. The one-way valve 72 falls under the action of gravity, thereby opening the return hole 71, allowing the liquid generated by the bursting of bubbles to flow back into the container. In the reciprocating motion of opening and closing the pressure relief valve 83, the duration of each opening of the pressure relief valve 83 can be extended, thereby reducing the total time for opening the lid, achieving rapid lid opening, and reducing overflow.

[0058] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0059] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0060] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A venting structure for a cooking appliance, characterized in that, include: The housing (10) is made of plastic or metal; An exhaust passage (20) is provided inside the housing (10). The exhaust passage (20) has an air inlet (21) and an air outlet (22). The exhaust passage (20) includes a first exhaust passage (23) and a second exhaust passage (24). The buffer chamber (30) is located between the first exhaust channel (23) and the second exhaust channel (24); A flow channel (40) is provided in the housing (10), and the first end of the flow channel (40) is connected to the buffer cavity (30); A liquid collection structure (50) is disposed on the housing (10) and communicates with the second end of the flow channel (40); The first exhaust passage (23) and / or the second exhaust passage (24) include a plurality of passage segments (25) connected in sequence, the plurality of passage segments (25) forming a folding flow channel, and the plurality of passage segments (25) being arranged concentrically or in parallel.

2. The exhaust structure of the cooking appliance according to claim 1, characterized in that, The liquid collection structure (50) is detachably connected to the housing (10).

3. The exhaust structure of the cooking appliance according to claim 1, characterized in that, The liquid collection structure (50) includes a box body (51) and a first tube body (52). The box body (51) has a receiving cavity (511) inside. The first end of the first tube body (52) is connected to the box body (51), and the second end of the first tube body (52) is connected to the shell (10) and communicates with the flow channel (40).

4. The exhaust structure of the cooking appliance according to claim 3, characterized in that, The exhaust structure of the cooking appliance also includes a second pipe (11), which is disposed on the housing (10). The second pipe (11) surrounds the outside of the flow channel (40) and is connected to the first pipe (52).

5. The exhaust structure of the cooking appliance according to claim 4, characterized in that, The first tube (52) and the second tube (11) are connected by a threaded structure, which includes a mating internal thread and an external thread. One of the internal thread and the external thread is disposed on the first tube (52) and the other is disposed on the second tube (11).

6. The exhaust structure of the cooking appliance according to claim 3, characterized in that, The venting structure of the cooking appliance also includes a first seal (60), which is located between the housing (10) and the liquid collection structure (50).

7. The exhaust structure of the cooking appliance according to claim 1, characterized in that, The flow channel (40) is located on the bottom wall of the housing (10), and the liquid collection structure (50) is located below the housing (10).

8. The exhaust structure of the cooking appliance according to claim 1, characterized in that, The width of the buffer cavity (30) is greater than the width of the first exhaust channel (23) and the width of the second exhaust channel (24); The depth of the buffer cavity (30) is greater than the depth of the first exhaust channel (23) and the depth of the second exhaust channel (24); The exhaust structure of the cooking appliance also includes a clearance cavity (70), which is connected to the exhaust port (22).

9. A cover assembly, comprising a cover (80) and a vent (81) disposed on the cover (80), characterized in that, The cover assembly further includes an exhaust structure disposed below the cover (80), the exhaust structure being the exhaust structure of any one of claims 1 to 8, wherein the air outlet (22) is connected to the exhaust hole (81).

10. A cooking utensil, comprising a lid assembly, characterized in that, The cover assembly is the cover assembly as described in claim 9.

Images