Cooking appliance

Abstract

The application provides a cooking utensil, which comprises a shell provided with a first air hole and a first communication hole; a heat preservation cover arranged in the shell, a side wall of the heat preservation cover being provided with a second communication hole and a third communication hole at intervals, and a first air duct being arranged between the shell and the heat preservation cover; a second air duct being arranged between an inner pot and the heat preservation cover, the second air duct being communicated with the second communication hole and the third communication hole; a fan being arranged between the shell and the heat preservation cover and corresponding to the third communication hole; a cover structure being arranged on the shell in an openable and closable mode, the cover structure being provided with a third air duct, a fourth communication hole and a second air hole arranged at intervals, the third air duct being communicated with the fourth communication hole and the second air hole, and the fourth communication hole being configured to be communicated with the first air duct and the first communication hole when the cover structure is in a closed position. The technical scheme of the application effectively solves the problem of a large size of the shell of an electric pressure cooker in the related art.

Description

Technical Field

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

[0002] An electric pressure cooker typically consists of an outer shell, a heat-insulating cover, an inner pot, a heating element, and a lid. After cooking, before opening the lid to remove the food, the high-temperature, high-pressure gas inside the pot requires either depressurization or allowing the inner pot to cool naturally until the pressure decreases before opening the lid. Depressurizing can cause the liquid food inside to be ejected by the high-pressure gas, potentially scalding the user. Allowing it to cool naturally takes a long time, which may not meet the user's needs.

[0003] In related technologies, the inner pot is cooled by an axial flow fan. Specifically, the axial flow fan is located on the outside of the outer shell and is covered by a separate shell, forming a protrusion on the outside of the outer shell. This results in a larger outer shell size for the electric pressure cooker. Summary of the Invention

[0004] The main objective of this invention is to provide a cooking appliance that solves the problem of the large outer shell size of electric pressure cookers in related technologies.

[0005] To achieve the above objectives, the present invention provides a cooking appliance, comprising: an outer shell having a first air vent and a first connecting hole; a heat-insulating cover disposed inside the outer shell, having a second connecting hole and a third connecting hole spaced apart on its side wall, and a first air duct between the outer shell and the heat-insulating cover, the first air duct connecting the second connecting hole and the first air vent; an inner pot removably disposed inside the heat-insulating cover, having a second air duct between the inner pot and the heat-insulating cover, the second air duct connecting the second connecting hole and the third connecting hole; a fan disposed between the outer shell and the heat-insulating cover and corresponding to the third connecting hole; and a lid structure openable and closable disposed on the outer shell, having a third air duct and a fourth connecting hole and a second air vent spaced apart, the third air duct connecting the fourth connecting hole and the second air vent, the fourth connecting hole being configured to connect the third air duct and the first connecting hole when the lid structure is in the closed position.

[0006] According to the technical solution of this invention, the outer shell is provided with a first air hole and a first connecting hole. A heat insulation cover is disposed inside the outer shell, and a second connecting hole and a third connecting hole are provided on the side wall of the heat insulation cover, spaced apart. A first air duct is provided between the outer shell and the heat insulation cover, connecting the second connecting hole and the first air hole. An inner pot is removably disposed inside the heat insulation cover, and a second air duct is provided between the inner pot and the heat insulation cover, connecting the second connecting hole and the third connecting hole. A fan is disposed between the outer shell and the heat insulation cover and corresponds to the third connecting hole. A cover structure is closable and disposed on the outer shell, and the cover structure is provided with a third air duct, a fourth connecting hole, and the second air hole. When the cover structure is in the closed position, the fourth connecting hole connects the third air duct and the first connecting hole. With the above-described configuration, the first, second, and third air ducts are all interconnected. When cooling of the inner pot is required, the fan is activated. The fan draws airflow from outside the cooking appliance into its interior, allowing the air to enter the second air duct. As the air passes through the second air duct, it carries away heat from the inner pot, effectively cooling it. Furthermore, since the second and third connecting holes are located on the side wall of the insulation cover, the contact area between the air in the second air duct and the inner pot is large, resulting in better cooling. Additionally, because the fan is positioned between the insulation cover and the outer shell, the outer shell has a more regular shape and avoids outward protrusions, thus minimizing the space occupied by the outer shell and making its dimensions more reasonable. Therefore, the technical solution of this application effectively solves the problem of the large outer shell size of electric pressure cookers in related technologies.

[0007] Furthermore, the second connecting hole is located in the middle or upper part of the side wall of the heat insulation cover, and / or the third connecting hole is located in the middle or upper part of the side wall of the heat insulation cover. Since the temperature of the middle and upper parts of the inner pot is higher than that of the lower part after cooking, the positioning of the second and third connecting holes can better achieve the cooling of the inner pot, thereby ensuring the cooling effect.

[0008] Furthermore, the second and third connecting holes are symmetrically arranged along the axis of the insulation cover. This arrangement ensures a relatively long second air duct, allowing the air within the second air duct to better remove heat from the inner pot.

[0009] Furthermore, the first air vent is an air outlet, and the second air vent is an air inlet. This arrangement allows air to enter through the cover structure and exit through the outer shell, thereby reducing the possibility of the user coming into contact with the exhaust hot air and ensuring user safety.

[0010] Furthermore, the cooking appliance also includes a plug-in structure, which is disposed on the cover structure and surrounds the outer periphery of the fourth connecting hole. The plug-in structure can be inserted into the first connecting hole. Alternatively, the plug-in structure is disposed on the outer shell and surrounds the outer periphery of the first connecting hole, and the plug-in structure can be inserted into the fourth connecting hole. The aforementioned plug-in structure effectively ensures the connection between the first connecting hole and the fourth connecting hole.

[0011] Furthermore, the outer shell includes a shell body and a middle plate structure disposed on the top of the shell body, with a first connecting hole disposed on the middle plate structure. This configuration allows the outer shell to effectively secure the insulation cover, and the middle plate structure provides good structural strength for the outer shell. Additionally, the middle plate structure can seal the gap between the top of the shell body and the insulation cover.

[0012] Furthermore, the cover structure includes a front cover and a metal inner cover, the metal inner cover being rotatably disposed below the front cover, and both the fourth connecting hole and the second vent are located on the front cover. This configuration facilitates the machining of the fourth connecting hole and the second vent.

[0013] Furthermore, the cover structure also includes an air guide hood, with its inlet facing between the front cover and the inner metal cover, and its outlet connected to the fourth connecting hole. The air guide hood enables airflow guidance, thereby fixing the direction of airflow.

[0014] Furthermore, the second vent is located on the side wall of the cover, and the second vent and the fourth connecting hole are located on either side of the centerline of the cover structure. This arrangement facilitates manufacturing and prevents the second vent from facing the user.

[0015] Furthermore, the cover structure is equipped with an exhaust structure located between the second air vent and the fourth connecting hole. This exhaust structure enables pressure relief and ventilation, and because it is situated between the second air vent and the fourth connecting hole, it effectively blocks airflow, resulting in a longer third air duct that can dissipate heat from the inner metal cover.

[0016] Furthermore, the cooking appliance also includes a windbreak structure located between the second air vent and the fourth connecting vent, extending towards the side away from the fourth connecting vent. This windbreak structure directs the airflow, thereby increasing the length of the third air duct.

[0017] Furthermore, the cooking appliance also includes a support frame positioned between the outer casing and the insulation cover, with the fan connected to the support frame. The support frame ensures greater stability of the fan's position.

[0018] Furthermore, the support frame includes a first frame and a second frame, which are connected. The first frame is correspondingly positioned with a first connecting hole, and the second frame is correspondingly positioned with a third connecting hole. This configuration allows the fan to be fixed from two directions.

[0019] Furthermore, the cooking appliance also includes a power board, which is connected to the second frame. This arrangement makes the power board more stable and positions it away from airflow within the casing, ensuring it operates in a suitable temperature environment for greater safety and reliability.

[0020] Furthermore, the cooking appliance also includes a heat insulation component, which is disposed on the side wall of the outer shell, with the second connecting hole facing the heat insulation component. The heat insulation component can guide airflow and also has a heat insulation function, preventing the heated airflow from blowing directly onto the outer shell, causing the outer shell surface to heat up, which is detrimental to the user experience. Attached Figure Description

[0021] 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:

[0022] Figure 1 A three-dimensional structural schematic diagram of an embodiment of a cooking appliance according to the present invention is shown;

[0023] Figure 2 It shows Figure 1 A bottom-view diagram of cooking utensils;

[0024] Figure 3 It shows Figure 1 A schematic diagram of a cooking utensil where the lid is separated from the outer shell;

[0025] Figure 4 It shows Figure 1 A schematic diagram of the exploded structure of a cooking utensil;

[0026] Figure 5 It shows Figure 1 A partial sectional view of the cooking utensils;

[0027] Figure 6 It shows Figure 1 A schematic diagram of the axial section of a cooking utensil;

[0028] Figure 7 It shows Figure 1 A bottom view of the lid structure of a cooking utensil;

[0029] Figure 8 It shows Figure 7 A partial sectional view of the cover structure;

[0030] Figure 9 It shows Figure 7 A three-dimensional structural diagram of the cover structure.

[0031] The above figures include the following reference numerals:

[0032] 10. Outer shell; 11. First air vent; 12. First connecting hole; 13. Shell body; 14. Middle plate structure; 20. Insulation cover; 21. Second connecting hole; 22. Third connecting hole; 31. First air duct; 32. Second air duct; 40. Inner pot; 50. Heating structure; 60. Fan; 70. Cover structure; 71. Third air duct; 72. Fourth connecting hole; 73. Second air vent; 74. Top cover; 75. Metal inner cover; 76. Air guide cover; 77. Exhaust structure; 81. Plug-in structure; 82. Windproof structure; 83. Bracket; 831. First frame; 832. Second frame; 84. Power board; 85. Heat insulation component. Detailed Implementation

[0033] 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.

[0034] 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.

[0035] 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.

[0036] like Figures 1 to 6 As shown, in this embodiment, the cooking appliance includes: an outer shell 10, a heat preservation cover 20, an inner pot 40, a fan 60, and a lid structure 70. The outer shell 10 is provided with a first air vent 11 and a first connecting hole 12. The heat preservation cover 20 is disposed inside the outer shell 10, and a second connecting hole 21 and a third connecting hole 22 are spaced apart on the side wall of the heat preservation cover 20. A first air duct 31 is provided between the outer shell 10 and the heat preservation cover 20, and the first air duct 31 connects the second connecting hole 21 and the first air vent 11. The inner pot 40 is removably disposed inside the heat preservation cover 20, and a second air duct 32 is provided between the inner pot 40 and the heat preservation cover 20, and the second air duct 32 connects the second connecting hole 21 and the third connecting hole 22. The fan 60 is disposed between the outer shell 10 and the heat preservation cover 20 and is correspondingly disposed to the third connecting hole 22. The cover structure 70 is closable and can be installed on the outer shell 10. The cover structure 70 is provided with a third air duct 71 and a fourth connecting hole 72 and a second air hole 73 arranged at intervals. The third air duct 71 connects the fourth connecting hole 72 and the second air hole 73. The fourth connecting hole 72 is configured to connect the first air duct 31 and the first connecting hole 12 when the cover structure 70 is in the closed position.

[0037] Applying the technical solution of this embodiment, the outer shell 10 is provided with a first air hole 11 and a first connecting hole 12. The heat insulation cover 20 is disposed inside the outer shell 10. The side wall of the heat insulation cover 20 is provided with a second connecting hole 21 and a third connecting hole 22, which are spaced apart. A first air duct 31 is provided between the outer shell 10 and the heat insulation cover 20, and the first air duct 31 connects the second connecting hole 21 and the first air hole 11. The inner pot 40 is removably disposed inside the heat insulation cover 20. A second air duct 32 is provided between the inner pot 40 and the heat insulation cover 20, and the second air duct 32 connects the second connecting hole 21 and the third connecting hole 22. A fan 60 is disposed between the outer shell 10 and the heat insulation cover 20 and is correspondingly disposed to the third connecting hole 22. A cover structure 70 is closable and disposed on the outer shell 10. The cover structure 70 is provided with a third air duct 71, a fourth connecting hole 72, and a second air hole 73. When the lid structure 70 is in the closed position, the fourth connecting hole 72 connects the first air duct 31 and the first connecting hole 12. With the above arrangement, the first air duct 31, the second air duct 32, and the third air duct 71 are all connected. When it is necessary to cool the inner pot 40, the fan 60 is activated. The fan 60 can draw airflow from outside the cooking appliance into the interior of the cooking appliance, allowing the air to enter the second air duct 32. As the air passes through the second air duct 32, it carries away the heat from the inner pot 40, effectively cooling it. Furthermore, since the second connecting hole 21 and the third connecting hole 22 are both located on the side wall of the insulation cover 20, the contact area between the air in the second air duct 32 and the inner pot 40 is large, resulting in a better cooling effect. Furthermore, since the fan 60 is positioned between the insulation cover 20 and the outer shell 10, the shape of the outer shell 10 is more regular, and outward protrusions on the outer shell 10 are avoided, thus preventing the outer shell 10 from occupying a large space. In other words, the size of the outer shell 10 is more reasonable. Therefore, the technical solution of this embodiment effectively solves the problem of the large size of the outer shell of electric pressure cookers in related technologies.

[0038] It should be noted that the corresponding setting of the fan 60 and the third connecting hole 22 refers to the projection of the fan 60 on the preset surface where the third connecting hole 22 is located. There is an overlapping area between the fan 60 and the third connecting hole 22.

[0039] In this embodiment, the cooking appliance also includes a heating structure 50, which is disposed below the inner pot 40 and can heat the inner pot 40. Specifically, the heating structure 50 can be an electric heating element, an open flame, or other heating structures.

[0040] The cooking appliance in this embodiment uses airflow generated by a fan 60 to simultaneously cool the inner pot and the lid structure 70. That is, the fan 60 connects the first air duct 31, the second air duct 32 and the third air duct 71 in series. This makes the production cost of the cooking appliance lower, the cooling efficiency higher, and the structure simpler and the space occupied by the appearance smaller.

[0041] Specifically, in this embodiment, the fan 60 is disposed between the outer shell 10 and the insulation cover 20, which avoids supplying power to the cover structure 70, making it easier for the user to disassemble and clean the cover structure 70.

[0042] like Figures 4 to 6 As shown, in this embodiment, the second connecting hole 21 is located in the middle or upper part of the side wall of the heat preservation cover 20, and the third connecting hole 22 is located in the middle or upper part of the side wall of the heat preservation cover 20. Since the temperature of the middle and upper parts of the inner pot 40 is higher than that of the lower part after cooking, the positioning of the second connecting hole 21 and the third connecting hole 22 can better achieve the cooling of the inner pot 40, thereby ensuring the cooling effect.

[0043] It should be noted that the insulation cover 20 is divided into three equal parts along its height direction. The bottom third is the lower part of the insulation cover 20, the middle third is the middle part of the insulation cover 20, and the top third is the upper part of the insulation cover 20.

[0044] Specifically, in this embodiment, the second connecting hole 21 is located in the middle of the side wall of the heat insulation cover 20, and the third connecting hole 22 is located in the middle of the side wall of the heat insulation cover 20.

[0045] like Figures 4 to 6 As shown, in this embodiment, the second connecting hole 21 and the third connecting hole 22 are symmetrically arranged along the axis of the heat insulation cover 20. The above arrangement ensures that the length of the second air duct 32 is relatively large, thereby enabling the air in the second air duct 32 to better remove the temperature at the inner pot 40.

[0046] like Figures 1 to 6 As shown, in this embodiment, the first air vent 11 is an air outlet, and the second air vent 73 is an air inlet. This arrangement allows air to enter through the cover structure 70 and exit through the outer shell 10; that is, the air from outside the cooking appliance passes sequentially through the third air duct 71, the second air duct 32, and the first air duct 31. This reduces the likelihood of the user coming into contact with the exhaust hot air, thereby ensuring user safety.

[0047] In other embodiments, the first air vent 11 is an air inlet, and the second air vent 73 is an air outlet. That is, the air outside the cooking appliance passes through the first air duct 31, the second air duct 32, and the third air duct 71 in sequence.

[0048] Specifically, in this embodiment, the first vent 11 is located at the bottom of the outer casing 10, and preferably, the first vent 11 is located on the bottom surface of the outer casing 10.

[0049] like Figure 3 , Figure 4 as well as Figure 6 As shown, in this embodiment, the cooking appliance also includes a plug-in structure 81, which is disposed on the outer shell 10 and surrounds the outer periphery of the first connecting hole 12. The plug-in structure 81 can be inserted into the fourth connecting hole 72. The above-mentioned plug-in structure can effectively ensure the connection between the first connecting hole and the fourth connecting hole.

[0050] Specifically, the plug-in structure 81 is an annular rib that protrudes upward from the middle plate structure 14. Of course, the plug-in structure 81 can also be a plurality of protrusions arranged at intervals around the outer periphery of the first connecting hole 12.

[0051] It should be noted that the annular ribs serve a water-blocking function; that is, the annular ribs are higher than the middle plate structure 14 located on their outer periphery, which effectively prevents water from entering the fan 60. They also limit the rotational position of the cover structure 70.

[0052] Specifically, the height of the annular rib can be 3mm, 5mm, or other dimensions.

[0053] Of course, the plug-in structure 81 can also be set on the cover structure 70 and surround the outer periphery of the fourth connecting hole 72, and the plug-in structure 81 can be inserted into the first connecting hole 12.

[0054] It should be noted that in this embodiment, the first connecting hole 12 and the fourth connecting hole 72 are vertically aligned. Of course, in other embodiments, the first connecting hole 12 and the fourth connecting hole 72 can be aligned horizontally.

[0055] like Figures 3 to 6 As shown, in this embodiment, the outer shell 10 includes a shell body 13 and a middle plate structure 14 disposed on the top of the shell body 13, and a first connecting hole 12 is disposed on the middle plate structure 14.

[0056] The above-mentioned configuration enables the outer shell 10 to effectively fix the heat insulation cover 20, and the configuration of the middle plate structure 14 enables the outer shell 10 to have good structural strength. In addition, the middle plate structure 14 can seal the gap between the top of the shell body 13 and the heat insulation cover 20.

[0057] like Figures 5 to 8As shown, in this embodiment, the cover structure 70 includes a front cover 74 and a metal inner cover 75. The metal inner cover 75 is rotatably disposed below the front cover 74. The fourth connecting hole 72 and the second vent 73 are both disposed on the front cover 74. The above-described arrangement makes the processing of the fourth connecting hole 72 and the second vent 73 easier.

[0058] like Figure 4 and Figure 6 As shown, in this embodiment, the cover structure 70 further includes an air guide shroud 76. The inlet of the air guide shroud 76 faces between the face cover 74 and the inner metal cover 75, and the outlet of the air guide shroud 76 is connected to the fourth connecting hole 72. The air guide shroud 76 can guide the air, thereby fixing the direction of the airflow.

[0059] like Figures 7 to 9 As shown, in this embodiment, the second vent 73 is located on the side wall of the cover 74, and the second vent 73 and the fourth connecting hole 72 are located on both sides of the center line of the cover structure 70. This arrangement facilitates manufacturing and prevents the second vent 73 from facing the user.

[0060] It should be noted that the centerline of the cover structure 70 mentioned above refers to the center bisector along the front-back direction of the cover structure 70.

[0061] like Figures 7 to 9 As shown, in this embodiment, the cover structure 70 is provided with an exhaust structure 77, which is located between the second air hole 73 and the fourth connecting hole 72. The exhaust structure 77 enables pressure relief and exhaust, and because it is located between the second air hole 73 and the fourth connecting hole 72, it can block the airflow, thus making the third air duct 71 longer and able to remove the heat from the metal inner cover 75.

[0062] like Figures 7 to 9 As shown, in this embodiment, the cooking appliance also includes a windbreak structure 82, which is located between the second air hole 73 and the fourth connecting hole 72, and extends toward the side away from the fourth connecting hole 72. The windbreak structure 82 is configured to guide the airflow, thereby increasing the length of the third air duct 71.

[0063] Specifically, the windbreak structure 82 is positioned along the centerline.

[0064] In this embodiment, a flow-around air duct is formed within the cover structure 70, resulting in a sufficiently large airflow channel area for the fan 60 and an adequate amount of airflow entering the cover structure 70, which helps to reduce the temperature rise of the airflow. When the airflow passes through the first connecting hole 12, it is concentrated and enters the fan 60. After being accelerated by the impeller of the fan 60, the airflow is blown into the insulation cover 20, enhancing the heat exchange effect. Even after the temperature rise, the airflow can still efficiently exchange heat with the inner pot 40, carrying away more heat. The cooling airflow flows around the cover structure 70 and the inner pot 40, resulting in a better cooling effect. Finally, the cooling airflow flows out from the bottom of the outer shell 10, which is more concealed and has less impact on the user.

[0065] like Figures 4 to 6 As shown, in this embodiment, the cooking appliance also includes a support 83, which is disposed between the outer shell 10 and the insulation cover 20, and the fan 60 is connected to the support 83. The support 83 makes the position of the fan 60 more stable.

[0066] like Figures 4 to 6 As shown, in this embodiment, the bracket 83 includes a first frame 831 and a second frame 832, which are connected. The first frame 831 is correspondingly disposed with the first connecting hole 12, and the second frame 832 is correspondingly disposed with the third connecting hole 22. This arrangement allows the fan 60 to be fixed from two directions.

[0067] It should be noted that the first frame 831 can also serve to block water from falling in, that is, it can prevent the impact of water leakage from the middle plate structure 14 on the power board 84 in the event of an accident.

[0068] like Figures 4 to 6 As shown, in this embodiment, the cooking appliance also includes a power board 84, which is connected to the second frame 832. This arrangement makes the position of the power board 84 more stable and positions it away from airflow within the housing 10, ensuring that the power board 84 is in a suitable temperature environment and is therefore safer and more reliable.

[0069] like Figure 1 and Figure 6 As shown, in this embodiment, the cooking appliance also includes a heat insulation component 85, which is disposed on the side wall of the outer casing 10, with the second connecting hole 21 facing the heat insulation component 85. The heat insulation component 85 can guide the airflow and also has a heat insulation function, preventing the heated airflow from blowing directly onto the outer casing 10, which would cause the surface of the outer casing 10 to heat up and be detrimental to the user experience.

[0070] Specifically, in this embodiment, the heat insulation component 85 is a display panel. The back of the display panel can guide the airflow, and the front of the display panel can display information, enabling the user to operate the cooking appliance or observe the cooking status of the cooking appliance.

[0071] like Figures 3 to 6 As shown, in this embodiment, the fan 60 is located on the rear side of the insulation cover 20, and the fan 60 is a centrifugal fan. The fan 60 is positioned on the rear side of the insulation cover 20, which makes the arrangement of the fan 60 more reasonable and avoids the cooking appliance having a large lateral width.

[0072] Meanwhile, the centrifugal fan does not require a large space, allowing air to enter axially and exit radially.

[0073] It should be noted that the rear side of the aforementioned heat preservation cover 20 refers to the side away from the user, the side of the cooking appliance facing the user is the front side, and the side of the cooking appliance away from the user is the rear side.

[0074] In this embodiment, the heat insulation cover 20 has a bottom wall and side walls, and the heating structure 50 is located above the bottom wall of the heat insulation cover.

[0075] In this embodiment, the cooking appliance includes an electric pressure cooker, a rice cooker, or others.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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 cooking utensil, characterized in that, include: The outer casing (10) is provided with a first air vent (11) and a first connecting hole (12); A heat insulation cover (20) is disposed inside the outer shell (10). A second connecting hole (21) and a third connecting hole (22) are provided at intervals on the side wall of the heat insulation cover (20). A first air duct (31) is provided between the outer shell (10) and the heat insulation cover (20). The first air duct (31) connects the second connecting hole (21) and the first air hole (11). The inner pot (40) is removably installed inside the heat preservation cover (20). A second air duct (32) is provided between the inner pot (40) and the heat preservation cover (20). The second air duct (32) connects the second connecting hole (21) and the third connecting hole (22). A fan (60) is disposed between the outer casing (10) and the heat insulation cover (20) and is disposed corresponding to the third connecting hole (22); A cover structure (70) is closably disposed on the outer shell (10). The cover structure (70) is provided with a third air duct (71) and a fourth connecting hole (72) and a second air hole (73) spaced apart. The third air duct (71) connects the fourth connecting hole (72) and the second air hole (73). The fourth connecting hole (72) is configured to connect the third air duct (71) and the first connecting hole (12) when the cover structure (70) is in the closed position.

2. The cooking utensil according to claim 1, characterized in that, The second connecting hole (21) is located in the middle of the side wall of the heat insulation cover (20) or in the upper part of the side wall of the heat insulation cover (20), and / or the third connecting hole (22) is located in the middle of the side wall of the heat insulation cover (20) or in the upper part of the side wall of the heat insulation cover (20).

3. The cooking utensil according to claim 1, characterized in that, The second connecting hole (21) and the third connecting hole (22) are symmetrically arranged along the axis of the heat insulation cover (20).

4. The cooking utensil according to claim 1, characterized in that, The first air hole (11) is an air outlet, and the second air hole (73) is an air inlet.

5. The cooking utensil according to claim 1, characterized in that, The cooking appliance also includes a plug-in structure (81), which is disposed on the cover structure (70) and surrounds the outer periphery of the fourth connecting hole (72). The plug-in structure (81) can be inserted into the first connecting hole (12). Alternatively, the plug-in structure (81) is disposed on the outer shell (10) and surrounds the outer periphery of the first connecting hole (12). The plug-in structure (81) can be inserted into the fourth connecting hole (72).

6. The cooking utensil according to claim 1, characterized in that, The outer shell (10) includes a shell body (13) and a middle plate structure (14) disposed on the top of the shell body (13), wherein the first connecting hole (12) is disposed on the middle plate structure (14).

7. The cooking utensil according to claim 1, characterized in that, The cover structure (70) includes a front cover (74) and a metal inner cover (75). The metal inner cover (75) is rotatably disposed below the front cover (74). The fourth connecting hole (72) and the second air hole (73) are both disposed on the front cover (74).

8. The cooking utensil according to claim 7, characterized in that, The cover structure (70) also includes an air guide hood (76), the inlet of which faces between the face cover (74) and the inner metal cover (75), and the outlet of which is connected to the fourth connecting hole (72).

9. The cooking utensil according to claim 7, characterized in that, The second air vent (73) is located on the side wall of the cover (74), and the second air vent (73) and the fourth connecting hole (72) are located on both sides of the center line of the cover structure (70).

10. The cooking utensil according to claim 9, characterized in that, The cover structure (70) is provided with an exhaust structure (77), which is located between the second air hole (73) and the fourth connecting hole (72).

11. The cooking utensil according to claim 1, characterized in that, The cooking appliance also includes a windbreak structure (82) located between the second air vent (73) and the fourth connecting hole (72), the windbreak structure (82) extending toward the side away from the fourth connecting hole (72).

12. The cooking utensil according to claim 1, characterized in that, The cooking appliance also includes a support (83) disposed between the outer shell (10) and the heat preservation cover (20), and the fan (60) is connected to the support (83).

13. The cooking utensil according to claim 12, characterized in that, The bracket (83) includes a first frame (831) and a second frame (832), the first frame (831) and the second frame (832) are connected, the first frame (831) is correspondingly disposed with the first connecting hole (12), and the second frame (832) is correspondingly disposed with the third connecting hole (22).

14. The cooking utensil according to claim 13, characterized in that, The cooking appliance also includes a power board (84), which is connected to the second frame (832).

15. The cooking utensil according to any one of claims 1 to 14, characterized in that, The cooking appliance also includes a heat insulation element (85), which is disposed on the side wall of the outer shell (10), and the second connecting hole (21) is disposed facing the heat insulation element (85).

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