Cooking electric chafing dish

Abstract

The application relates to the technical field of kitchen household appliances, and provides a cooking electric chafing dish. The cooking electric chafing dish comprises a base and a pot body arranged on the base, the base is provided with an air duct, the air duct is provided with an air inlet and an air outlet, the cooking electric chafing dish further comprises a fan and a first filtering structure, the fan is arranged in the air duct, the first filtering structure is arranged at the air inlet of the air duct and detachably connected with the base, the first filtering structure comprises a protective cover and a filtering piece detachably connected with the protective cover, the protective cover is partially arranged towards the air inlet and is provided with a plurality of first ventilation holes which are arranged at intervals. The cooking electric chafing dish provided by the application is convenient for dismounting, cleaning and replacing the filtering piece on the basis of meeting the oil fume filtering requirement, the assembly precision of the filtering piece is ensured, and the filtering dead angle is reduced.

Description

Technical Field

[0001] This application relates to the field of kitchen appliance technology, and in particular to an electric hot pot for cooking. Background Technology

[0002] Currently, most electric hot pots produce a large amount of pungent odors, steam, and unpleasant fumes during use, which greatly affects the dining environment.

[0003] Related technologies typically involve an air duct inside the electric hot pot, within which a fan and filter are installed. The fan draws in cooking fumes from around the pot, which are then filtered before being discharged. Oil droplets from the fumes adhere to the filter, gradually reducing its effectiveness. Therefore, the filter needs to be disassembled for cleaning or replacement. However, disassembling and reassembling the filter is not only inconvenient but also affects the assembly precision, leading to problems such as dead zones in the filtration process. Utility Model Content

[0004] Therefore, it is necessary to provide a cooking electric hot pot that, while satisfying the requirement of oil fume filtration, facilitates the disassembly, cleaning, and replacement of the filter components, ensures the assembly accuracy of the filter components, and reduces filtration dead zones.

[0005] An electric hot pot includes a base and a pot body mounted on the base. The base has an air duct with an air inlet and an air outlet. The electric hot pot also includes a fan and a first filter structure. The fan is located inside the air duct. The first filter structure is located at the air inlet of the air duct and is detachably connected to the base. The first filter structure includes a protective cover and a filter element detachably connected to the protective cover. The protective cover is partially oriented towards the air inlet and has a plurality of spaced-apart first ventilation holes.

[0006] Understandably, the protective cover protects the filter element, and the multiple spaced-apart first ventilation holes facilitate the intake of cooking fumes into the air duct by the fan. Oil droplets from the fumes adhere to the filter element, and the filtered air is discharged from the outlet. Because this first filter structure is detachably connected to the base, it is easy to disassemble and assemble as a whole. This not only makes disassembly and assembly convenient but also ensures the assembly accuracy of the filter element, avoiding filtration dead zones caused by filter element misalignment. Furthermore, the detachable connection between the filter element and the protective cover allows for separate cleaning of both components. This not only makes it easier to remove oil droplets from the filter element but also eliminates the risk of cleaning solution flowing into other structures during the cleaning process.

[0007] In some embodiments, one of the protective cover and the filter element has a protruding connecting arm, and the other has a snap-fit ​​portion that engages with the connecting arm.

[0008] In other words, by utilizing the limiting fit between the connecting arm and the snap-fit ​​part, the filter element and the protective cover can be detachably connected; moreover, this design fully guarantees the filtration range of the filter element and reduces interference between the assembly of the filter element and its filtration function.

[0009] In some embodiments, the snap-fit ​​portion is provided with a snap-fit ​​groove, and the connecting arm is snapped into the snap-fit ​​groove.

[0010] In other words, a snap-fit ​​connection is used to achieve a detachable connection between the filter element and the protective cover, thereby improving the reliability of the connection.

[0011] In some embodiments, the snap-fit ​​portion includes an overlapping block protruding from the inner wall of the protective cover, the inner wall of the protective cover portion above the overlapping block protruding radially inward and spaced apart from the overlapping block to cooperate with the overlapping block to form the snap-fit ​​groove, and the connecting arm protruding from the edge of the filter element and overlapping above the overlapping block.

[0012] This design limits the vertical displacement of the filter element, improving assembly reliability while ensuring detachable connection.

[0013] In some embodiments, multiple overlapping blocks and connecting arms are provided and arranged at intervals along the circumference of the filter element, with multiple connecting arms and multiple sets of overlapping blocks corresponding one-to-one.

[0014] In other words, by using multiple sets of overlapping blocks and multiple connecting arms to overlap, not only is the overlap range in the circumferential direction guaranteed, but the force is also kept uniform, thus improving the reliability of the assembly.

[0015] In some embodiments, the protective cover includes an annular support portion and a cover portion connected to the annular support portion. The cover portion is provided with a plurality of spaced-apart first ventilation holes. The annular support portion surrounds the outer periphery of the filter element and is detachably connected to the base.

[0016] Understandably, the ring-shaped support can cooperate with the base and form a channel for gas circulation, so that the oil fumes can be filtered by the filter element in time, reducing the pollution of oil fumes to other structures in the air duct, especially reducing the pollution to the fan.

[0017] In some embodiments, the filter element includes a liquid collection section and a filter section connected to and surrounding the outer periphery of the liquid collection section, the filter section being gradually expanded from the liquid collection section toward the first ventilation hole, and the filter section having a plurality of spaced filter holes.

[0018] This design, while satisfying filtration requirements, also encourages oil droplets to flow along the inclined filter section to the collection section, preventing oil droplets from falling onto the fan and causing pollution.

[0019] In some embodiments, the air inlet is located in the middle of the base, and the middle of the pot body is provided with a through partition, which surrounds the outer periphery of the air inlet, and at least a portion of the first filter structure is located within the space surrounded by the partition.

[0020] This design separates the food from the first filter structure and limits its movement, mitigating the risk of the first filter structure shifting due to airflow. Furthermore, the central design allows for sufficient suction space around the pot while reducing the size of the first filter structure, thus improving purification efficiency.

[0021] In some embodiments, the top of the partition is provided with a radially inwardly extending limiting flange that can abut against the protective cover to limit the displacement of the first filter structure along the axial direction of the pot body.

[0022] Understandably, the limiting flange is used to limit the first filter structure in the vertical direction, thereby further improving the assembly reliability of the first filter structure.

[0023] In some embodiments, the electric hot pot further includes a support base disposed on the base and used to support the first filter structure, and a portion of the protective cover protrudes from the top of the partition.

[0024] Understandably, the support base can be used to elevate the first filter structure so that the position of the first ventilation hole on the protective cover protrudes from the partition, which facilitates the airflow to flow directly to the filter element and increases the protection range.

[0025] In some embodiments, the support base includes a support portion and a reinforcing portion connected to the support portion. The support portion is supported by the base and surrounds the outer periphery of the reinforcing portion. The reinforcing portion has a plurality of spaced-apart through holes.

[0026] In other words, the reinforcement increases the structural strength of the support and improves its stability; moreover, the multiple through holes on the reinforcement facilitate gas flow.

[0027] In some embodiments, the base includes an upper shell and a lower shell connected to each other, which together form the air duct, and the upper shell has a plurality of spaced second ventilation holes at the air outlet of the air duct.

[0028] In other words, the separate design of the upper and lower shells facilitates the disassembly and assembly of the base for maintenance and replacement of the blower; and the multiple spaced second ventilation holes ensure air circulation while preventing food splashed from the pot from falling into the air duct.

[0029] In some embodiments, the upper shell has a guide surface that gradually expands from top to bottom at the middle.

[0030] This design not only facilitates the downward diffusion of gas but also increases the gas flow cross-section, thereby increasing the gas flow rate and improving filtration efficiency.

[0031] In some embodiments, the electric hot pot further includes a second filter structure located in the air duct near the air outlet, and the second filter structure is detachably connected to the base.

[0032] In other words, the combination of the first and second filter structures forms a dual filtration system, which improves the oil fume filtration effect; moreover, the second filter structure is also easy to disassemble and assemble. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A cross-sectional view of an electric hot pot provided in an embodiment of this application;

[0035] Figure 2 A cross-sectional view of an electric hot pot provided in an embodiment of this application;

[0036] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0037] Figure 4 This is a schematic diagram of the airflow direction in an electric hot pot provided in an embodiment of this application;

[0038] Figure 5 This is a cross-sectional view of the first filter structure in an electric hot pot provided in an embodiment of this application;

[0039] Figure 6 for Figure 5 A magnified view of a section at point B in the middle;

[0040] Figure 7 This is a schematic diagram of the first filter structure in an electric hot pot provided in an embodiment of this application;

[0041] Figure 8 This is a schematic diagram of a protective cover in an electric hot pot provided according to an embodiment of this application;

[0042] Figure 9This is a schematic diagram of a filter element in an electric hot pot provided in an embodiment of this application;

[0043] Figure 10 A partial cross-sectional view of an electric hot pot provided in an embodiment of this application;

[0044] Figure 11 This is a schematic diagram of an electric hot pot provided in an embodiment of this application.

[0045] Reference numerals: 10. Base; 11. Upper shell; 12. Lower shell; 13. Heat insulation plate; 20. Pot body; 21. Baffle; 30. Fan; 40. First filter structure; 41. Protective cover; 42. Filter element; 50. Heating structure; 61. Connecting arm; 62. Snap-fit ​​part; 70. Support base; 71. Support part; 72. Reinforcing part; 80. Second filter structure; 101. Air duct; 102. Bearing part; 211. Limiting flange; 212. 411. Flared opening; 412. Annular support section; 421. Cover section; 422. Liquid collection section; 423. Filter section; 424. Connecting section; 621. Overlapping block; 711. Large diameter section; 712. Small diameter section; 1011. Air inlet; 1012. Air outlet; 1101. Second ventilation hole; 1102. Guide surface; 4101. First ventilation hole; 4102. Cylinder cavity; 4211. First flange; 6201. Snap-fit ​​groove; 7201. Through hole. Detailed Implementation

[0046] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0047] It should be noted that when a component is referred to as being "fixed to" or "attached to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0048] Furthermore, 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 number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0050] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application's specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0051] Please see Figures 1 to 5 One embodiment of this application provides an electric hot pot, including a base 10 and a pot body 20 mounted on the base 10. The base 10 has an air duct 101, which has an air inlet 1011 and an air outlet 1012. The electric hot pot also includes a fan 30 and a first filter structure 40. The fan 30 is disposed within the air duct 101, and the first filter structure 40 is disposed at the air inlet 1011 of the air duct 101 and detachably connected to the base 10. The first filter structure 40 includes a protective cover 41 and a filter element 42 detachably connected to the protective cover 41. The protective cover 41 is partially oriented towards the air inlet 1011 and has a plurality of spaced-apart first ventilation holes 4101. Figure 4 The direction indicated by the middle arrow is the direction of airflow.

[0052] In actual use, the electric hot pot also includes a heating structure 50, which is located at the bottom of the pot body 20.

[0053] When the heating structure 50 is turned on to cook the food inside the pot 20, steam and fumes are generated. At this time, the fan 30 can be turned on to draw air around the pot 20 into the air duct 101 through the air inlet 1011. When the fumes pass through the filter element 42, oil droplets can adhere to the filter element 42, and the filtered air is discharged from the air outlet 1012. Since the first filter structure is detachably connected to the base, it is easy to disassemble and assemble it as a whole. Especially during assembly, it not only reduces assembly errors but also ensures the assembly accuracy of the filter element 42, avoiding filtration dead corners due to the misalignment of the filter element 42. At the same time, since the filter element is detachably connected to the protective cover, the protective cover 41 and the filter element 42 can be cleaned separately after the whole assembly is disassembled. This not only makes it easier to clean the oil droplets and other substances adhering to the filter element 42 but also eliminates the risk of cleaning fluid flowing to other structures of the base 10 during the cleaning process. In addition, it is also convenient to replace the filter element 42 and the protective cover 41 if they are damaged. In addition, the arrangement of multiple spaced first ventilation holes 4101 on the protective cover 41 not only ensures air circulation efficiency but also prevents large particles from falling directly into the filter element 42 and affecting the filtration effect.

[0054] During cleaning, firstly, the first filter structure 40 is completely disassembled from the base 10, while the filter element 42 remains connected to the protective cover 41. Then, the filter element 42 is disassembled relative to the protective cover 41 to facilitate separate cleaning of the filter element 42 and the protective cover 41. After cleaning and draining, the filter element 42 is first installed on the protective cover 41, and then the first filter structure 40 is assembled as a whole onto the base 10.

[0055] It should be noted that the first filter structure 40 and the base 10 can be directly and detachably connected, or they can be indirectly connected through other structures. The only requirement is that the first filter structure 40 can be easily installed and removed from the base 10.

[0056] Please see Figure 2 , Figure 3 , Figure 5 and Figure 6In some embodiments, one of the protective cover 41 and the filter element 42 has a connecting arm 61 protruding from its end, and a locking part 62 at the other end, with the locking part 62 engaging with the connecting arm 61. That is, the engaging part 62 allows for the detachable connection of the filter element 42 and the protective cover 41, facilitating separate cleaning of the protective cover 41 and the filter element 42 and improving cleaning efficiency. Furthermore, this arrangement fully guarantees the filtration range of the filter element 42 and reduces interference between the assembly of the filter element 42 and its filtration function. Specifically, the protective cover 41 surrounds a cylindrical cavity 4102, and the filter element 42 is disposed within the cylindrical cavity 4102, with a first ventilation hole 4101 communicating with the cylindrical cavity 4102. The locking part 62 is located on the inner wall of the protective cover 41, and the connecting arm 61 protrudes from the edge of the filter element 42. Alternatively, the connecting arm 61 protrudes from the inner wall of the protective cover 41, and the locking part 62 is located at the edge of the filter element 42.

[0057] Please see Figure 5 , Figure 6 , Figure 8 and Figure 9 In some embodiments, the snap-fit ​​portion 62 is provided with a snap-fit ​​groove 6201, and the connecting arm 61 is snapped into the snap-fit ​​groove 6201. That is, a snap-fit ​​engagement is used to achieve a detachable connection between the filter element 42 and the protective cover 41, improving connection reliability. Specifically, the snap-fit ​​portion 62 includes an overlapping block 621 protruding from the inner wall of the protective cover 41. A portion of the inner wall of the protective cover 41 above the overlapping block 621 protrudes radially inward and is spaced apart from the overlapping block 621 to form the snap-fit ​​groove 6201. The connecting arm 61 protrudes from the edge of the filter element 42 and overlaps the upper part of the overlapping block 621. This arrangement restricts the vertical displacement of the filter element 42, improving assembly reliability while maintaining a detachable connection. The vertical direction is... Figure 5 The up and down directions in the middle.

[0058] Alternatively, the snap-fit ​​portion 62 may also include two vertically opposite and spaced-apart overlapping blocks 621, the two overlapping blocks 621 forming a snap-fit ​​groove 6201.

[0059] Alternatively, the snap-fit ​​groove 6201 can be recessed into the inner wall of the protective cover 41, and the connecting arm 61 can protrude from the edge of the filter element 42 and extend into the snap-fit ​​groove 6201 for positioning. Yet another alternative is that the snap-fit ​​groove 6201 can be recessed at the edge of the filter element 42, or the snap-fit ​​groove 6201 can be formed by two vertically opposite and spaced-apart overlapping blocks 621, in which case the connecting arm 61 protrudes from the inner wall of the protective cover 41.

[0060] Please see Figure 5 , Figure 6 , Figure 8 and Figure 9In some embodiments, multiple overlapping blocks 621 and connecting arms 61 are provided and arranged at intervals along the circumference of the filter element 42. Multiple connecting arms 61 correspond one-to-one with multiple sets of overlapping blocks 621. Each set of overlapping blocks 621 includes at least two overlapping blocks 621 arranged at intervals along the circumference of the filter element 42. This arrangement not only ensures the overlapping range in the circumferential direction but also maintains uniform force distribution, improving assembly reliability. During assembly, the connecting arms 61 can first be aligned with the interval area between any two adjacent sets of overlapping blocks 621, and then the filter element 42 can be rotated to align the connecting arms 61 with the overlapping blocks 621.

[0061] Among them, a limiting block is provided on one side of the overlapping block 621 along the circumference of the filter element 42, which plays a limiting role in the circumferential rotation of the filter element 42.

[0062] In yet another embodiment, the connecting portion 423 and the snap-fit ​​portion 62 are detachably connected by screws. Alternatively, the filter element 42 and the protective cover 41 can be detachably connected directly using screws.

[0063] like Figure 1 , Figure 2 , Figure 5 , Figure 7 and Figure 8 As shown, in some embodiments, the protective cover 41 includes an annular support portion 411 and a cover portion 412 connected to the annular support portion 411. The cover portion 412 has a plurality of spaced-apart first ventilation holes 4101. The annular support portion 411 surrounds the outer periphery of the filter element 42 and is detachably connected to the base 10. Specifically, the base 10 has a support portion 102 for supporting the first filter structure 40, and the annular support portion 411 is placed in the support portion 102. The cover portion 412 and the annular support portion 411 together form a cylindrical cavity 4102 and are integrally formed. The diameter of the cover portion 412 is smaller than the diameter of the annular support portion 411, and the edge of the cover portion 412 is connected to a flange at the rounded corner transition. The flange is connected to the annular support portion 411 and cooperates with the aforementioned overlapping block 621 to form a snap-fit ​​groove 6201.

[0064] Understandably, the annular support portion 411 is used to enclose a cylindrical cavity 4102 for gas flow. This cylindrical cavity 4102 is connected to the air duct 101 on the base 10, together forming an oil fume filtration channel. Furthermore, the filter element 42 is connected between the annular support portion 411 and the cover portion 412 to ensure that the oil fumes entering the oil fume filtration channel can be filtered in a timely manner, reducing the pollution of oil fumes to other structures in the air duct 101, especially reducing the pollution to the fan 30.

[0065] The multiple first ventilation holes 4101 may have the same shape or different shapes; they may all be round holes, or they may be a combination of round holes, fan-shaped holes, and elongated holes. For example, the cover part 412 includes a top plate and a fence side plate, which are connected. The fence side plate has multiple elongated holes arranged at intervals along the circumference, and the top plate has a round hole and multiple fan-shaped holes that gradually increase in size from the inside to the outside in the middle.

[0066] like Figure 1 , Figure 2 , Figure 5 and Figure 9 As shown, in some embodiments, the filter element 42 includes a liquid collecting section 421 and a filter section 422 connected to and surrounding the outer periphery of the liquid collecting section 421. The filter section 422 is gradually expanded from the liquid collecting section 421 toward the first ventilation hole 4101, and the filter section 422 has a plurality of spaced filter holes. That is, the filter section 422 and the liquid collecting section 421 together form a bowl-shaped filter element 42, which, while satisfying filtration, can promote oil droplets to flow along the inclined filter section 422 to the liquid collecting section 421, avoiding oil droplets falling onto the fan 30 and causing pollution. The edge of the liquid collecting section 421 is provided with a first flange 4211, which is inclined and connected to the filter section 422. The first flange 4211 causes the liquid collecting section 421 to surround a liquid collecting groove, which is conducive to oil accumulation.

[0067] Furthermore, the filter section 422 can be a filter screen.

[0068] Furthermore, the filter element 42 also includes a connecting portion 423 connected to one end of the filter section 422 away from the liquid collection section 421. The connecting portion 423 is integrally formed with a horizontally extending second flange, and the aforementioned connecting arm 61 is connected to the second flange.

[0069] Please see Figure 1 , Figure 2 and Figure 11 In some embodiments, the air inlet 1011 is located in the middle of the base 10, and the pot body 20 has a through partition 21 in the middle. The partition 21 surrounds the outer periphery of the air inlet 1011, and at least a portion of the first filter structure 40 is located within the space enclosed by the partition 21. It is understood that the partition 21 separates the food from the first filter structure 40 and provides circumferential and radial restraint to the first filter structure 40, mitigating the risk of the first filter structure 40 shifting due to airflow sway and ensuring an effective filtration range. Moreover, this arrangement, while reducing the size of the first filter structure 40, ensures sufficient suction space around the pot body 20, improving purification efficiency.

[0070] like Figures 1 to 3As shown, the bottom of the partition 21 is further flared 212, allowing the pot body 20 to be fitted from top to bottom onto the outer periphery of the first filter structure 40 through the flared 212, thus limiting the radial swaying of the first filter structure 40. Simultaneously, the top of the partition 21 has a radially inwardly extending limiting flange 211, which can abut against the protective cover 41 to limit the axial displacement of the first filter structure 40 along the pot body 20. The axial direction of the pot body 20 is vertical. The limiting flange 211 can abut against the upper part of the protective cover 41, preventing the first filter structure 40 from detaching from the top of the partition 21, further improving the assembly reliability of the first filter structure 40. The limiting flange 211 can be horizontally or inclined, as long as it can abut against the protective cover 41 for limiting movement. Alternatively, the outer wall of the protective cover 41 may be recessed with a limiting groove, and the limiting flange 211 may partially extend into the limiting groove, thereby limiting the upward and downward displacement of the first filter structure 40 in the vertical direction. This is only an example.

[0071] Please see Figure 1 , Figure 2 and Figure 10 In some embodiments, the electric hot pot also includes a support base 70, which is disposed on the base 10 and used to support the first filter structure 40. A portion of the protective cover 41 protrudes from the top of the partition 21. By using the support base 70, the first filter structure 40 can be raised, so that the portion of the protective cover 41 with the first ventilation hole 4101 protrudes from the partition 21, facilitating direct airflow to the filter element 42. Furthermore, this arrangement increases the protection range, preventing boiling food inside the pot 20 from dripping onto the filter element 42 and the fan 30. The annular support portion 411 in the protective cover 41 is supported on the support base 70, and the support base 70 is supported on the support portion 102 of the base 10. That is, the first filter structure 40 is indirectly connected to the base 10 through the support base 70.

[0072] like Figure 1 and Figure 10 As shown, the support base 70 further includes a support portion 71 and a reinforcing portion 72 connected to the support portion 71. The support portion 71 is supported on the base 10 and surrounds the outer periphery of the reinforcing portion 72. The reinforcing portion 72 has a plurality of spaced-apart through holes 7201. The support portion 71 is supported on the support portion 102 on the base 10, and the annular support portion 411 in the protective cover 41 is located at one end of the support portion 71 away from the support portion 102. The reinforcing portion 72 increases the structural strength of the support base 70 and improves the support stability; moreover, the arrangement of the plurality of through holes 7201 on the reinforcing portion 72 facilitates gas flow.

[0073] The support portion 71 includes a large-diameter section 711 and a small-diameter section 712 connected to the large-diameter section 711, with a rounded transition between them. The large-diameter section 711 is supported by the support portion 102, and the small-diameter section 712 is supported and cooperates with the annular support portion 411. The end of the large-diameter section 711 facing the small-diameter section 712 can abut and limit the movement at the flared opening 212 of the partition portion 21, further improving the assembly stability of the first filter structure 40. The reinforcing portion 72 is integrally formed with the support portion 71, and the through hole 7201 on the reinforcing portion 72 can be circular or arc-shaped. In some specific embodiments, a circular hole is provided in the middle of the reinforcing portion 72, and multiple sets of circumferentially spaced fan-shaped hole groups are provided with the center of the circular hole as a reference. Each set of fan-shaped hole groups includes multiple fan-shaped holes arranged from the inside to the outside with arc lengths from small to large.

[0074] Please see Figure 1 , Figure 2 and Figure 11 In some embodiments, the base 10 includes an upper shell 11 and a lower shell 12 connected to each other, which together form an air duct 101. The upper shell 11 has a plurality of spaced-apart second ventilation holes 1101 at the air outlet 1012 of the air duct 101. The separate arrangement of the upper shell 11 and the lower shell 12 facilitates the disassembly and assembly of the base 10 for maintenance and replacement of the fan 30. The air outlet 1012 of the air duct 101 is arranged in a ring around the outer periphery of the pot body 20. The area of ​​the upper shell 11 located on the outer periphery of the pot body 20 has a plurality of second ventilation holes 1101, which, while ensuring air circulation, helps to prevent food splashed from the pot body 20 from falling into the air duct 101. The plurality of second ventilation holes 1101 may be strip-shaped holes with a length along the radial direction of the base 10.

[0075] In actual use, the upper shell 11 is also connected to an annular heat insulation plate 13 on the side opposite to the lower shell 12, and the pot body 20 is placed on the heat insulation plate 13 to reduce the thermal impact on the base 10.

[0076] like Figure 1 and Figure 2 As shown, the upper shell 11 further includes a top-to-bottom expanding guide surface 1102 at its center. This arrangement facilitates the downward diffusion of gas for discharge from the outlet 1012; additionally, the expanding guide surface 1102 increases the gas flow cross-section, thereby increasing the gas flow rate and improving filtration efficiency. The fan 30 is positioned at the guide surface 1102, and the expanding design reduces assembly interference. Specifically, the upper shell 11 may have a top-to-bottom expanding section near its center, with the inner wall of the expanding section acting as the guide surface 1102. A bearing section 102 is located at the smaller diameter of the expanding section to support the aforementioned support base 70.

[0077] like Figure 1 and Figure 2As shown, in some embodiments, the electric hot pot also includes a second filter structure 80, which is located in the air duct 101 near the air outlet 1012 and is detachably connected to the base 10. That is, the fumes drawn in by the fan 30 are initially filtered by the first filter structure 40 and then flow to the second filter structure 80 for secondary filtration before being discharged from the air outlet 1012, thus improving the filtration effect. In other words, the cooperation of the first filter structure 40 and the second filter structure 80 forms a dual filtration system, enhancing the fume filtration effect.

[0078] The second filter structure 80 can be made of fiber cotton with a fine pore structure. Alternatively, the second filter structure 80 includes a negative ion generator and a positive ion plate. The negative ions generated by the negative ion generator diffuse into the air duct 101 and combine with the gas. Under the action of the electric field, they move towards the positive ion plate, thereby causing the flue gas particles to be deposited on the positive ion plate, thus achieving secondary filtration.

[0079] Furthermore, the second filter structure 80 can be fixed to the base 10 by screws, snaps, etc., as long as it can be detachably connected.

[0080] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0081] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A cooking electric fire pot, characterized in that, The electric hot pot includes a base (10) and a pot body (20) mounted on the base (10). The base (10) is provided with an air duct (101). The air duct (101) has an air inlet (1011) and an air outlet (1012). The electric hot pot also includes a fan (30) and a first filter structure (40). The fan (30) is located in the air duct (101). The first filter structure (40) is located at the air inlet (1011) of the air duct (101) and is detachably connected to the base (10). The first filter structure (40) includes a protective cover (41) and a filter element (42) detachably connected to the protective cover (41). The protective cover (41) is partially facing the air inlet (1011) and is provided with a plurality of spaced first ventilation holes (4101).

2. The cooking electric fire pot according to claim 1, characterized in that, One of the protective cover (41) and the filter element (42) is provided with a connecting arm (61), and the other is provided with a snap-fit ​​part (62), which is in a limiting fit with the connecting arm (61).

3. The cooking electric fire pot according to claim 2, characterized in that, The snap-fit ​​part (62) is provided with a snap-fit ​​groove (6201), and the connecting arm (61) is snapped into the snap-fit ​​groove (6201).

4. The electric hot pot according to claim 3, characterized in that, The snap-fit ​​part (62) includes an overlapping block (621) protruding from the inner wall of the protective cover (41). The inner wall of the protective cover (41) above the overlapping block (621) protrudes radially inward and is spaced apart from the overlapping block (621) to cooperate with the overlapping block (621) to form the snap-fit ​​groove (6201). The connecting arm (61) protrudes from the edge of the filter element (42) and overlaps above the overlapping block (621).

5. The cooking electric fire pot according to claim 4, characterized in that, Both the overlapping block (621) and the connecting arm (61) are provided in multiples and are arranged at intervals along the circumference of the filter element (42), with the multiple connecting arms (61) and the multiple sets of overlapping blocks (621) corresponding one to one.

6. The cooking electric fire pot according to claim 1, characterized in that, The protective cover (41) includes an annular support portion (411) and a cover portion (412) connected to the annular support portion (411). The cover portion (412) is provided with a plurality of spaced first ventilation holes (4101). The annular support portion (411) surrounds the outer periphery of the filter element (42) and is detachably connected to the base (10).

7. The cooking electric fire pot according to claim 1 or 6, characterized in that, The filter element (42) includes a liquid collection part (421) and a filter part (422) connected to and surrounding the outer periphery of the liquid collection part (421). The filter part (422) is gradually expanded from the liquid collection part (421) toward the first ventilation hole (4101). The filter part (422) is provided with a plurality of filter holes arranged at intervals.

8. The cooking electric fire pot according to claim 1, characterized in that, The air inlet (1011) is located in the middle of the base (10), and the middle of the pot body (20) is provided with a through partition (21). The partition (21) surrounds the outer periphery of the air inlet (1011), and at least a portion of the first filter structure (40) is located within the space surrounded by the partition (21).

9. The cooking electric fire pot according to claim 8, characterized in that, The top of the partition (21) is provided with a radially inwardly extending limiting flange (211), which can abut against the protective cover (41) to limit the displacement of the first filter structure (40) along the axial direction of the pot body (20).

10. The cooking electric fire pot according to claim 8, characterized in that, The electric hot pot also includes a support base (70), which is located on the base (10) and is used to support the first filter structure (40). A portion of the protective cover (41) protrudes from the top of the partition (21).

11. The cooking electric fire pot according to claim 10, characterized in that, The support base (70) includes a support portion (71) and a reinforcing portion (72) connected to the support portion (71). The support portion (71) is supported on the base (10) and surrounds the outer periphery of the reinforcing portion (72). The reinforcing portion (72) is provided with a plurality of through holes (7201) arranged at intervals.

12. The cooking electric fire pot according to claim 1, characterized in that, The base (10) includes an upper shell (11) and a lower shell (12) connected to each other, which together form the air duct (101). The upper shell (11) has a plurality of spaced second ventilation holes (1101) at the air outlet (1012) of the air duct (101).

13. The electric hot pot according to claim 12, characterized in that, The upper shell (11) has a guide surface (1102) that gradually expands from top to bottom at the middle.

14. The cooking electric fire pot according to claim 1, characterized in that, The electric hot pot also includes a second filter structure (80), which is located in the air duct (101) near the air outlet (1012). The second filter structure (80) is detachably connected to the base (10).

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