Pressure release pot lid and electric pressure cooker

Abstract

The application relates to a pressure relief pot cover and an electric pressure cooker. The pressure relief pot cover is matched with a pot body of the electric pressure cooker and is used for opening or covering an opening of the pot body. The pressure relief pot cover comprises an inner cover which can be rotatably opened or covered relative to the pot body; a heat-conducting cover which is arranged on a side of the inner cover close to the pot body and is used for sealing the pot body and conducting heat in the pot body; a heat dissipation assembly which is arranged on the heat-conducting cover and is used for dissipating heat of the heat-conducting cover; and a lock cover which is movably connected with the heat-conducting cover and can be rotated relative to the heat-conducting cover to be locked with the pot body or be separated from the pot body. The pressure relief pot cover can quickly reduce the pressure in the pot body of the electric pressure cooker, facilitates a user to open the pressure relief pot cover in a short time, improves the functionality of the electric pressure cooker as a whole, and further improves the use experience of the user.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a pressure relief pot cover and an electric pressure cooker. BACKGROUND

[0002] The electric pressure cooker is a commonly used household appliance. At present, the electric pressure cooker has the function of fast cooking, and its principle is to seal and pressurize the cooking cavity to improve the cooking temperature and shorten the cooking time.

[0003] After the cooking work of the electric pressure cooker is completed, the user cannot immediately open the pot cover because the pressure in the pot body is high, and the user can only open the pot cover after the pressure in the pot body is reduced.

[0004] The existing electric pressure cooker usually has a corresponding heat dissipation structure arranged on the pot cover and / or the pot body, and the heat dissipation structure directly cools the pot cover and / or the pot body to reduce the pressure in the pot body.

[0005] However, due to the structural limitation of the existing electric pressure cooker, when the user rotates the pot cover to cover the pot body, the heat dissipation structure will rotate relative to the pot body, resulting in a leakage gap between the pot cover, the heat dissipation structure and the pot body, which reduces the heat dissipation effect of the heat dissipation structure on the pot cover and / or the pot body, and it takes a long time to reduce the pressure in the electric pressure cooker after the cooking work of the electric pressure cooker is completed, which affects the user experience. SUMMARY

[0006] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a pressure relief pot cover and an electric pressure cooker, which can quickly reduce the pressure in the electric pressure cooker after the cooking work of the electric pressure cooker is completed, thereby improving the user experience.

[0007] In a first aspect, the present application provides a pressure relief pot cover, which is matched with a pot body of an electric pressure cooker and used to open or cover an opening of the pot body, and the pressure relief pot cover comprises:

[0008] An inner cover, which is rotatably opened or covered relative to the pot body;

[0009] A heat conduction cover, which is arranged on one side of the inner cover close to the pot body and used to seal the pot body and conduct the heat in the pot body;

[0010] A heat dissipation assembly, which is arranged on the heat conduction cover and used to dissipate heat from the heat conduction cover;

[0011] A lock cover, which is movably connected with the heat conduction cover and can rotate relative to the heat conduction cover to be locked with the pot body or be unlocked.

[0012] The pressure relief pot cover according to the first aspect of the present application has at least the following beneficial effects:

[0013] The pressure relief pot cover of the present application is provided with a lock cover movably arranged on the heat-conducting cover, and only by rotating the lock cover relative to the heat-conducting cover, the lock cover is locked with the pot body to lock and fix the inner cover and the pressure relief pot cover as a whole on the pot body. In this way, during the process of rotating and locking the pressure relief pot cover as a whole on the pot body, only the lock cover on the pressure relief pot cover rotates relative to the pot body, and the inner cover, the heat-conducting cover and the heat dissipation assembly are all in a static state and will not rotate relative to the pot body, effectively preventing the generation of air leakage gap between the inner cover, the heat-conducting cover and the heat dissipation assembly and the pot body, ensuring that the heat-conducting cover and the heat dissipation assembly are always in a sealed state with the pot body, ensuring the heat dissipation effect of the heat dissipation assembly on the heat-conducting cover and the pot body. The heat dissipation assembly quickly conducts the heat in the heat-conducting cover out to realize the cooling and pressure relief of the pot body. In this way, the heat dissipation assembly can quickly reduce the pressure in the pot body, making it convenient for the user to open the pressure relief pot cover in a short time, improving the functionality of the electric pressure cooker as a whole, and further improving the user experience.

[0014] In some embodiments, the inner cover is movably provided with an unlocking member, which is drivingly connected with the lock cover to drive the lock cover to rotate relative to the heat-conducting cover.

[0015] In some embodiments, the unlocking member is configured as a handle rotatably mounted on the inner cover, and when the lock cover is separated from the pot body and unlocked, the handle can drive the inner cover to rotate relative to the pot body to open the opening of the pot body.

[0016] In some embodiments, the pressure relief pot cover further comprises an exhaust valve arranged on the inner cover, which is used to communicate with the pot body and can be opened when the steam pressure of the pot body is at a preset value to exhaust the steam of the pot body.

[0017] In some embodiments, the heat dissipation assembly comprises:

[0018] a heat dissipation fin fixedly arranged on the heat-conducting cover;

[0019] a wind channel cover fixedly arranged on the heat-conducting cover and forming a wind channel cavity accommodating the heat dissipation fin with the heat-conducting cover;

[0020] an air guiding member fixedly arranged on the wind channel cover and communicating with the wind channel cavity, which is used to introduce air flow into the wind channel cavity or lead the heat in the wind channel cavity out.

[0021] In some embodiments, a threaded hole is formed on the heat-conducting cover, and a fastener is arranged on the wind channel cover and threadedly connected with the threaded hole.

[0022] In some embodiments, the air duct cover comprises a detachable upper air duct cover and a lower air duct cover, and an inner wall of the upper air duct cover is in abutment with a side of the heat dissipation fin away from the heat conduction cover.

[0023] In some embodiments, a plurality of elastic balancing members are arranged between the lock cover and the heat conduction cover, and all the elastic balancing members are used to limit the swing of the lock cover relative to the heat conduction cover.

[0024] In some embodiments, the lock cover is rotationally connected to the heat conduction cover through a bearing member.

[0025] In a second aspect, the present application provides an electric pressure cooker, comprising a pot body and the above-mentioned pressure relief cover, wherein the inner cover is rotationally connected to one end of the pot body.

[0026] According to the electric pressure cooker of the second aspect of the present application, at least the following beneficial effects are achieved:

[0027] The electric pressure cooker of the present application, due to the arrangement of the above-mentioned pressure relief cover, also has the same technical effects as the pressure relief cover. That is, the heat dissipation assembly can quickly reduce the pressure in the pot body, making it convenient for the user to open the pressure relief cover in a short time, improving the functionality of the electric pressure cooker as a whole, and thus improving the user's experience.

[0028] The above description is only a summary of the technical solutions of the present application. In order to more clearly understand the technical means of the present application, the following detailed description can be implemented in accordance with the content of the specification, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0029] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a better understanding of the preferred embodiments, and are not considered limiting of the present application. Moreover, like reference numerals denote same or similar components across all the drawings. In the drawings:

[0030] Figure 1 is a sectional view of the pressure relief cover of the embodiment of the present application;

[0031] Figure 2 is a sectional view of the pressure relief cover of the embodiment of the present application; Figure 1 is a partial enlarged view of A in FIG. 6;

[0032] Figure 3 is a partial enlarged view of B in FIG. 6; Figure 1

[0033] Figure 4 is a structural schematic view of the pressure relief cover of the embodiment of the present application; ​

[0034] Figure 5 Partially sectional structure schematic view of the pressure relief pot cover of the embodiment of the present application;

[0035] Figure 6 Partially sectional structure schematic view of the pressure relief pot cover of the embodiment of the present application; Figure 5 Partially sectional structure schematic view of the pressure relief pot cover of the embodiment of the present application;

[0036] Figure 7 Partially sectional structure schematic view of the pressure relief pot cover of the embodiment of the present application;

[0037] Figure 8 Partially sectional structure schematic view of the pressure relief pot cover of the embodiment of the present application;

[0038] Figure 9 Partially sectional structure schematic view of the pressure relief pot cover of the embodiment of the present application;

[0039] Figure 10 Partially sectional structure schematic view of the pressure relief pot cover of the embodiment of the present application;

[0040] Figure 11 Partially sectional structure schematic view of the pressure relief pot cover of the embodiment of the present application;

[0041] Figure 12 Partially sectional structure schematic view of the pressure relief pot cover of the embodiment of the present application; Figure 11 Partially sectional structure schematic view of the pressure relief pot cover of the embodiment of the present application;

[0042] Legend of reference signs: inner cover 100; corrugated pipe 110; heat-conducting cover 200; threaded hole 210; heat-dissipation assembly 300; heat-dissipation fin 310; air duct cover 320; air duct upper cover 321; limiting hole 321a; air duct lower cover 322; limiting boss 322a; fastener 323; air guide 330; air duct cavity 340; lock cover 400; exhaust valve 500; exhaust pipe 510; pressure valve 520; elastic balancing member 600; bearing member 700; unlocking member 800. DETAILED DESCRIPTION

[0043] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0045] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise explicitly specified and limited.

[0046] Reference herein to "embodiments" means that the particular features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily a separate or alternative embodiment to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0047] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after it.

[0048] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two), and similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0049] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0050] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0051] The existing electric pressure cooker usually sets a corresponding heat dissipation structure on the pot cover and / or the pot body, and the heat dissipation structure directly cools the pot cover and / or the pot body, thereby reducing the pressure in the pot body.

[0052] However, due to the structural limitation of the existing electric pressure cooker, the heat dissipation structure will rotate relative to the pot body during the process of the user rotating the pot cover to cover the pot body of the electric pressure cooker, resulting in a leakage gap between the heat dissipation structure and the pot body, reducing the heat dissipation effect of the heat dissipation structure on the pot cover and / or the pot body, and causing a long time to reduce the pressure in the electric pressure cooker after the cooking work of the electric pressure cooker is completed, affecting the user experience.

[0053] Therefore, based on this, the present application provides a pressure relief pot cover, which is matched with a pot body of an electric pressure cooker and is used to open or cover an opening of the pot body.

[0054] Referring to Figure 1 and Figure 2 The pressure relief pot cover comprises an inner cover 100, a heat conduction cover 200, a heat dissipation assembly 300, and a lock cover 400.

[0055] The inner cover 100 can be rotatably opened or covered relative to the pot body. The heat conduction cover 200 is arranged on the side of the inner cover 100 close to the pot body, and the heat conduction cover 200 is used to seal the pot body and conduct the heat in the pot body. The heat dissipation assembly 300 is arranged on the heat conduction cover 200, and the heat dissipation assembly 300 is used to dissipate heat from the heat conduction cover 200 to conduct the heat on the heat conduction cover 200 out. The lock cover 400 is movably connected with the heat conduction cover 200, and the lock cover 400 can rotate relative to the heat conduction cover 200 to be locked with the pot body or be separated from the pot body.

[0056] It should be noted that the rotation of the inner cover 100 relative to the pot body means that the inner cover 100 is rotatably opened or covered on the pot body along a vertical plane.

[0057] The heat conduction cover 200 can be, but is not limited to, a steel cover, that is, the heat conduction cover 200 can be made of steel, so as to ensure the heat conduction effect of the heat conduction cover 200 on the heat in the pot body. Of course, the heat conduction cover 200 can also be made of other metal materials, and the specific material is not limited.

[0058] The heat dissipation assembly 300 preferably adopts a form of air cooling to dissipate heat from the heat conduction cover 200.

[0059] When the pressure relief pot cover is entirely covered on the pot body of the electric pressure cooker, the heat-conducting cover 200 seals the opening at the upper end of the pot body, so that the heat-conducting cover 200 is directly in contact with the heat source in the pot body, and the high-temperature heat in the pot body is continuously conducted to the heat-conducting cover 200. When the electric pressure cooker completes the cooking of the food, the heat dissipation assembly 300 can dissipate heat from the heat-conducting cover 200, thereby guiding the heat on the heat-conducting cover 200 to the environment and reducing the temperature of the heat-conducting cover 200. That is, the heat dissipation assembly 300 cools the heat-conducting cover 200 to achieve the cooling of the pot body. As the heat dissipation assembly 300 continuously cools the heat-conducting cover 200, the temperature and pressure in the pot body in the sealed state gradually decrease, and the user can rotate the pressure relief pot cover to open the cover.

[0060] It should be understood that the movable connection of the locking cover 400 and the heat-conducting cover 200 can be but is not limited to the rotating connection through a bearing, so that the locking cover 400 can rotate relative to the heat-conducting cover 200 along the horizontal plane, thereby making the locking cover 400 and the pot body lock or separate, so as to lock and fix the pressure relief pot cover on the pot body or release the locking between the pressure relief pot cover and the pot body, thereby facilitating the user to open the cover.

[0061] Specifically, in some embodiments, the locking cover 400 is provided with a steel tooth at the circumferential edge thereof, and the pot body is provided with a pot tooth at the edge of the outer wall thereof, which cooperates with the steel tooth. When the locking cover 400 rotates relative to the heat-conducting cover 200 along the horizontal plane, the steel tooth on the locking cover 400 enters the pot tooth on the pot body, and the locking is completed. At this time, the pressure relief pot cover is locked on the pot body, and the upper and lower positions thereof are limited, and the user cannot rotate and open it.

[0062] When the user needs to rotate the pressure relief pot cover to open it, the locking cover 400 rotates relative to the heat-conducting cover 200 along the horizontal plane, and the steel tooth on the locking cover 400 rotates and separates from the pot tooth on the pot body, and the separation is completed. The user can implement the opening action of the pressure relief pot cover.

[0063] It is not difficult to understand that the pressure relief pot cover of the present application movably sets the locking cover 400 on the heat-conducting cover 200, and only rotates the locking cover 400 relative to the heat-conducting cover 200 to make the locking cover 400 and the pot body lock, so as to lock and fix the inner cover 100 and the pressure relief pot cover on the pot body.

[0064] In this way, whether the user rotates and locks the pressure relief pot cover as a whole and covers the pot body or rotates the pressure relief pot cover as a whole to separate and unlock the pot body, only the lock cover 400 on the pressure relief pot cover rotates relative to the pot body, and the inner cover 100, the heat conduction cover 200 and the heat dissipation assembly 300 are all in a static state and will not rotate relative to the pot body, especially the heat conduction cover 200 in direct contact with the heat source of the pot body will not rotate relative to the pot body, which ensures that the heat conduction cover 200 is always in a sealed state to the opening of the pot body, effectively preventing air leakage gaps between the inner cover 100, the heat conduction cover 200 and the heat dissipation assembly 300 and the pot body. Ensure that the heat conduction cover 200 and the heat dissipation assembly 300 are always in a sealed state with the pot body to ensure the heat dissipation effect of the heat dissipation assembly 300 on the heat conduction cover 200 and the pot body.

[0065] The heat dissipation assembly 300 quickly dissipates the heat in the heat conduction cover 200 to achieve the cooling and pressure relief of the pot body. In this way, the heat dissipation assembly 300 can quickly reduce the pressure in the pot body, making it convenient for the user to open the pressure relief pot cover in a short time, improving the functionality of the electric pressure cooker as a whole, and further improving the user's experience.

[0066] In some embodiments of the present application, referring to Figure 1 and Figure 4 The inner cover 100 is movably provided with an unlocking piece 800, and the unlocking piece 800 is drivingly connected to the lock cover 400 to drive the lock cover 400 to rotate relative to the heat conduction cover 200.

[0067] Specifically, the unlocking piece 800 can be a sliding buckle slidingly arranged on the side wall of the inner cover 100, and the sliding buckle is connected to the lock cover 400. The user can push the sliding buckle to make the sliding buckle drive the heat conduction cover 200 to rotate along the horizontal plane, so as to rotate and lock or separate and unlock the heat conduction cover 200 with the pot body.

[0068] Of course, in other embodiments, a corresponding driving motor can also be arranged inside the inner cover 100, and the output end of the driving motor is connected to the heat conduction cover 200. Correspondingly, a press switch can be arranged on the inner cover 100, and the press switch is electrically connected to the driving motor to control the forward and reverse rotation of the driving motor. The user can press the press switch to make the driving motor act, and then drive the heat conduction cover 200 to rotate in the horizontal direction, so as to rotate and lock or separate and unlock the heat conduction cover 200 with the pot body.

[0069] Obviously, by movably arranging the unlocking member 800 on the inner cover 100 and drivingly connecting the unlocking member 800 with the locking cover 400, the user only needs to act on the unlocking member 800 to drive the locking cover 400 to rotate relative to the heat-conducting cover 200. Thus, during the rotation of the locking cover 400 relative to the heat-conducting cover 200 or the pot body, the inner cover 100, the heat-conducting cover 200 and the heat-dissipating assembly 300 all remain stationary, and none of them rotates relative to the pot body, so as to ensure that the heat-conducting cover 200 and the heat-dissipating assembly 300 are always in a relatively sealed state with the pot body, and the heat-dissipating effect of the heat-dissipating assembly 300 on the heat-conducting cover 200 and the pot body is ensured.

[0070] In some embodiments of the present application, referring to Figure 1 and Figure 4 , the unlocking member 800 is configured as a handle rotatably mounted on the inner cover 100. When the locking cover 400 is separated from the pot body to be unlocked, the handle can drive the inner cover 100 to rotate relative to the pot body to open the opening of the pot body.

[0071] Specifically, the handle is rotatably mounted on the top of the inner cover 100, and a crank is arranged inside the inner cover 100. The handle is connected with the locking cover 400 through the crank (not shown in the figure). When the user rotates the handle clockwise or counterclockwise horizontally, the handle will drive the locking cover 400 to rotate synchronously through the crank, so that the locking cover 400 is locked with the pot body or unlocked.

[0072] It is easy to understand that, by configuring the unlocking member 800 as a handle rotatably mounted on the inner cover 100, the user can conveniently rotate the pressure relief pot cover as a whole to be locked and fixed on the pot body, and the user can also conveniently perform the opening action.

[0073] In some embodiments of the present application, referring to Figure 5 and Figure 7 , the pressure relief pot cover further comprises an exhaust valve 500 arranged on the inner cover 100. The exhaust valve 500 is used to communicate with the pot body, and the exhaust valve 500 can be opened when the steam pressure of the pot body is at a preset value to discharge the steam of the pot body.

[0074] It is not difficult to understand that, during the cooking of the food in the electric pressure cooker, the steam pressure in the pot body will gradually increase as the food is continuously heated. When the steam pressure of the pot body increases to the preset value, at this time, the electric pressure cooker completes the cooking of the food, the exhaust valve 500 is opened, and then the steam of the pot body is discharged outward, so as to reduce the pressure in the pot body and facilitate the user to perform the opening action on the pressure relief pot cover as a whole.

[0075] Specific to the embodiments, the exhaust valve 500 includes an exhaust pipe 510 and a pressure valve 520, the exhaust pipe 510 is sealed through the heat-conducting cover 200 and extends into the pot body, so that the lower end opening of the exhaust pipe 510 is in communication with the inside of the pot body, and the top of the exhaust pipe 510 is a pressure relief hole, and the pressure valve 520 is movably sealed or opened to the pressure relief hole.

[0076] It needs to be understood that when the electric pressure cooker completes the cooking work of the food, the pressure in the pot body rises to the maximum value, at this time, the steam pressure in the exhaust pipe 510 is greater than the gravity of the pressure valve 520, the high-pressure steam in the exhaust pipe 510 will push up the pressure valve 520, so that the pressure valve 520 opens the pressure relief hole, and the high-pressure steam can be discharged outward through the pressure relief hole. When the steam pressure in the exhaust pipe 510 is less than the gravity of the pressure valve 520, the pressure valve 520 is free-falling to the initial position, and the sealing of the pressure relief hole is maintained again.

[0077] Obviously, through the setting of the exhaust valve 500, the exhaust valve 500 can work together with the heat dissipation assembly 300 to release the pressure of the pot body, that is, the exhaust valve 500 reduces the pressure in the pot body by discharging the high-pressure steam in the pot body, and the heat dissipation assembly 300 reduces the pressure in the pot body by dissipating heat from the heat-conducting cover 200, both of which can work at the same time to quickly reduce the pressure in the pot body, so that the user can implement the opening action of the electric pressure cooker which has completed the cooking work in a short time, improve the functionality of the pressure release pot cover and the electric pressure cooker provided with the pressure release pot cover, and improve the user experience.

[0078] Of course, the user can also selectively use the heat dissipation assembly 300 and / or the exhaust valve 500 to reduce the pressure in the pot body according to the needs, to meet different needs. For example, considering that the exhaust valve 500 will generate corresponding noise in the process of exhaust pressure relief, or the exhaust valve 500 may be blocked by food after a long time of use, the user can only choose to use the heat dissipation assembly 300 to reduce the pressure in the pot body by dissipating heat from the heat-conducting cover 200.

[0079] In some embodiments of the present application, referring to Figure 1 、 Figure 3 、 Figure 5 , the heat dissipation assembly 300 includes heat dissipation fins 310, an air duct cover 320, and an air guide piece 330. Among them, the heat dissipation fins 310

[0080] are fixedly arranged on the heat-conducting cover 200, the air duct cover 320 is fixedly arranged on the heat-conducting cover 200 and forms an air duct cavity 340 accommodating the heat dissipation fins 310 with the heat-conducting cover 200. The air guide piece 330 is fixedly arranged on the air duct cover 320 and communicates with the air duct cavity 340, and the air guide piece 330 is used for introducing air flow into the air duct cavity 340 or leading out the heat in the air duct cavity 340.

[0081] Specifically, the heat dissipation fins 310 are distributed radially along the axis of the heat-conductive cover 200 in the air duct cavity 340, and the bottoms of the heat dissipation fins 310 are in surface-to-surface contact with the heat-conductive cover 200, thereby increasing the heat dissipation area of the heat dissipation fins 310 for the heat-conductive cover 200. The air duct cavity 340 is annular, the outer ring of the air duct cavity 340 is closed, and the inner ring of the air duct cavity 340 is open. At this time, the end of the heat dissipation fins 310 close to the axis of the heat-conductive cover 200 is in direct contact with the external environment, and the heat dissipation fins 310 can conduct the heat on the heat-conductive cover 200 to the environment.

[0082] In addition, referring to Figure 1 , Figure 8 and Figure 10 , the air guide 330 can be fixed on the air duct cover 320 by screws or buckles. Of course, the air guide 330 can also be integrally formed with the air duct cover 320, and the air guide 330 is provided with a plurality of air vents that are in communication with the air duct cavity 340.

[0083] In an embodiment, the air guide 330 is in communication with an air extraction device through the corrugated pipe 110. The air extraction device can be a fan, and the air extraction device is preferably arranged on the outer wall of the pot body. The air guide 330 introduces the air flow with a lower external temperature into the air duct cavity 340 through the air extraction device, and the air flow between the heat dissipation fins 310 can cool and lower the temperature of the heat-conductive cover 200, and the air flow that absorbs the heat of the heat-conductive cover 200 is discharged from the inner ring opening of the air duct cavity 340.

[0084] Of course, in other embodiments, the air guide 330 can also extract the hot air in the air duct cavity 340 through the air extraction device, which can also cool and lower the temperature of the heat-conductive cover 200.

[0085] It should be noted that in the above embodiment, the air guide 330 is in communication with the air duct cavity 340 through the corrugated pipe 110, and the flexible characteristics of the corrugated pipe 110 can ensure that the air guide 330 is always unobstructed when the user opens the pressure relief pot cover relative to the pot body along the vertical plane to open the opening of the pot body, thereby ensuring the air cooling efficiency of the heat dissipation assembly 300 for the pot body.

[0086] It can be understood that, by fixing the heat dissipation fins 310 and the air duct cover 320 on the heat conduction cover 200, and by fixing the air guide member 330 on the air duct cover 320, the heat dissipation fins 310, the air duct cover 320, and the air guide member 330 will not move relative to each other, and will always be in a relatively static state, effectively avoiding air leakage gaps caused by relative movement of the heat dissipation fins 310, the air duct cover 320, and the air guide member 330, thereby affecting the air flow introduced by the air guide member 330 into the air duct cavity 340, or the heat in the air duct cavity 340 being dissipated, further ensuring the effect of the heat dissipation assembly 300 on dissipating heat in the pot body, and improving the rate of pressure drop in the pot body.

[0087] In some embodiments of the present application, referring to Figure 5 and Figure 6 , the heat conduction cover 200 is provided with a threaded hole 210, and the air duct cover 320 is provided with a fastener 323 threadedly connected with the threaded hole 210.

[0088] Specifically, referring to Figure 5 , a plurality of connecting columns can be arranged at intervals at the circumferential edge of the heat conduction cover 200, and the threaded hole 210 is arranged in the connecting column, and the fastener 323 is a screw, which is threadedly connected with the threaded hole 210, so that the air duct cover 320 can be tightly fixed on the heat conduction cover 200, further avoiding relative rotation or relative displacement between the air duct cover 320 and the heat conduction cover 200, and also facilitating the user to disassemble and replace the air duct cover 320.

[0089] Moreover, in some embodiments of the present application, referring to Figure 6 , the lock cover 400 is rotatably connected with the heat conduction cover 200 through a bearing member 700. Preferably, the bearing member 700 can be sleeved on the above-mentioned connecting column, simplifying the assembly process. At the same time, by providing the bearing member 700, the friction between the lock cover 400 and the heat conduction cover 200 during rotation of the lock cover 400 relative to the heat conduction cover 200 can be effectively reduced, the mutual abrasion between the lock cover 400 and the heat conduction cover 200 can be reduced, and the structural stability of the two can be improved.

[0090] In some embodiments of the present application, referring to Figure 8 and Figure 9 , the air duct cover 320 comprises an air duct upper cover 321 and an air duct lower cover 322 which are detachably connected, and the inner wall of the air duct upper cover 321 abuts against the side of the heat dissipation fins 310 away from the heat conduction cover 200.

[0091] Specifically, referring to Figure 9The four limiting holes 321a of the air duct upper cover 321 are arranged at the circumferential edge position of the air duct upper cover 321, and the four limiting bosses 322a of the air duct lower cover 322 are correspondingly arranged at the circumferential edge position of the air duct lower cover 322. When the heat dissipation assembly 300 is assembled, the air duct lower cover 322 can be first fixed on the heat conduction cover 200 through screws, then the heat dissipation fins 310 are stably attached to the surface of the heat conduction cover 200, and then the limiting holes 321a of the air duct upper cover 321 are positioned and inserted on the limiting bosses 322a of the air duct lower cover 322. In this way, the heat dissipation fins 310 are pressed and abutted on the heat conduction cover 200 through the inner wall of the air duct upper cover 321, so as to ensure that the heat dissipation fins 310 are closely attached to the heat conduction cover 200, improve the heat dissipation effect, and at the same time, ensure the relative fixation of the heat conduction cover 200, the heat dissipation fins 310 and the air duct cover 320, so as to avoid air leakage gap between them.

[0092] In addition, in this embodiment, the middle part of the air duct upper cover 321 is provided with a recess, and the inner wall of the recess is provided with an air outlet communicated with the heat dissipation fins 310. In this way, the heat of the heat dissipation fins 310 can be conducted outward through the air outlet.

[0093] In some embodiments of the present application, referring to Figure 11 and Figure 12 A plurality of elastic balancing members 600 are arranged between the lock cover 400 and the heat conduction cover 200, and all the elastic balancing members 600 are used to limit the swing of the lock cover 400 relative to the heat conduction cover 200. In this way, during the process that the user rotates and locks the pressure relief pot cover to be fixed on the pot body, the lock cover 400 is accurately rotated along the horizontal plane, so that the steel teeth on the lock cover 400 are accurately locked or separated from the pot teeth on the pot body, avoiding the situation that the lock cover 400 and the pot body are not locked in place, and improving the safety of the pressure relief pot cover and the overall safety of the electric pressure cooker.

[0094] Specifically, the elastic balancing member 600 includes a hollow recess arranged on the lock cover 400, a rolling ball arranged in the hollow recess, and a compression spring arranged between the hollow recess and the rolling ball. The rolling ball abuts against the heat conduction cover 200. In this way, the swing of the lock cover 400 relative to the heat conduction cover 200 is effectively limited, and the lock cover 400 is accurately rotated around the axis of the heat conduction cover 200.

[0095] At the same time, the compression spring also plays a buffering role for the lock cover 400. In addition, the lock cover 400 contacts the heat conduction cover 200 through the rolling ball, further avoiding direct contact between the lock cover 400 and the heat conduction cover 200. When the lock cover 400 rotates around the axis of the heat conduction cover 200, the rolling ball rolls along the surface of the heat conduction cover 200 synchronously, improving the rotation accuracy of the lock cover 400 and reducing the friction loss between the lock cover 400 and the heat conduction cover 200.

[0096] In some embodiments of the present application, the present application also provides an electric pressure cooker, which comprises a cooker body and the pressure relief cooker cover as described above, wherein the inner cover 100 is rotationally connected to one end of the cooker body.

[0097] Specifically, the inner cover 100 is hinged to one end of the cooker body, so that the inner cover 100 drives the pressure relief cooker cover to rotate to open or cover the cooker body.

[0098] The electric pressure cooker of the present application, due to the configuration of the pressure relief cooker cover as described above, also has the same technical effects brought by the pressure relief cooker cover. That is, the electric pressure cooker of the present application can quickly reduce the pressure in the cooker body after the cooking work is completed, which facilitates the user to open the pressure relief cooker cover in a short time, improves the functionality of the electric pressure cooker as a whole, and further improves the user's experience.

[0099] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A pressure release lid, which is fitted to a pot body of an electric pressure cooker, for opening or closing an opening of the pot body, characterized in that, The utility model relates to a pressure relief pot cover, which comprises: an inner cover (100) capable of being rotatably opened or closed relative to the pot body; a heat-conducting cover (200) arranged on the side of the inner cover (100) close to the pot body, used for sealing the pot body and conducting heat in the pot body; a heat dissipation assembly (300) arranged on the heat-conducting cover (200), used for dissipating heat from the heat-conducting cover (200); a lock cover (400) movably connected with the heat-conducting cover (200) and capable of being rotatably locked or unlocked relative to the heat-conducting cover (200); the lock cover (400) is rotatably connected with the heat-conducting cover (200) through a bearing (700); a plurality of elastic balancing members (600) are arranged between the lock cover (400) and the heat-conducting cover (200), all of which are used for limiting the swing of the lock cover (400) relative to the heat-conducting cover (200); the elastic balancing member (600) comprises a hollow recess provided on the lock cover (400), a ball rollingly arranged in the hollow recess, and a compression spring clamped between the hollow recess and the ball, and the ball abuts against the heat-conducting cover (200).

2. The pressure release cooker lid of claim 1, wherein, An unlocking member (800) is movably arranged on the inner cover (100) and drivingly connected with the lock cover (400) to drive the lock cover (400) to rotate relative to the heat-conducting cover (200).

3. The pressure release cooker lid of claim 2, wherein, The unlocking member (800) is rotatably installed on a handle of the inner cover (100); when the lock cover (400) is separated from the pot body, the handle can drive the inner cover (100) to rotate relative to the pot body to open the opening of the pot body.

4. The pressure release cooker lid of claim 1 wherein, The pressure relief pot cover further comprises an exhaust valve (500) arranged on the inner cover (100) and used for communicating with the pot body; the exhaust valve (500) can be opened when the steam pressure of the pot body is at a preset value to exhaust the steam of the pot body.

5. The pressure release cooker lid of claim 4 wherein, The exhaust valve (500) comprises an exhaust pipe (510) and a pressure valve (520); the exhaust pipe (510) is sealingly arranged through the heat-conducting cover (200) and extends into the pot body, so that the lower end opening of the exhaust pipe (510) communicates with the inside of the pot body; the top of the exhaust pipe (510) is a pressure relief hole; and the pressure valve (520) movably seals or opens the pressure relief hole.

6. The pressure release cooker lid of claim 1 wherein, The heat dissipation assembly (300) comprises: a heat dissipation fin (310) fixedly arranged on the heat-conducting cover (200); an air duct cover (320) fixedly arranged on the heat-conducting cover (200) and forming an air duct cavity (340) accommodating the heat dissipation fin (310) with the heat-conducting cover (200); an air guiding member (330) fixedly arranged on the air duct cover (320) and communicating with the air duct cavity (340); the air guiding member (330) is used for introducing air flow into the air duct cavity (340) or leading heat out of the air duct cavity (340).

7. The pressure release cooker lid of claim 6 wherein, A threaded hole (210) is formed on the heat-conducting cover (200), and a fastener (323) is arranged on the air duct cover (320) and is threadedly connected with the threaded hole (210).

8. The pressure release cooker lid of claim 6, wherein, The air duct cover (320) comprises a detachably connected air duct upper cover (321) and an air duct lower cover (322), and an inner wall of the air duct upper cover (321) is in abutment with a side of the heat-dissipating fins (310) away from the heat-conducting cover (200).

9. The pressure release cooker lid of claim 6 wherein, The heat-dissipating fins (310) are distributed in the air duct cavity (340) in a radial manner along an axis of the heat-conducting cover (200), and a bottom of the heat-dissipating fins (310) is in surface contact with the heat-conducting cover (200).

10. An electric pressure cooker, characterized by Comprise: A pot body and a pressure relief pot cover as claimed in any one of claims 1 to 9; The inner cover (100) is rotatably connected to one end of the pot body.

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