Coupling Structure of Electric Cooker and Cooking Method of Multifunctional Pressure Cooker

Abstract

The present invention relates to the technical field of air fryers, and particularly to a multi-functional air fryer, an electric cooker coupling structure, and a cooking method for a multi-functional pressure cooker. It includes a pot assembly, a lid assembly, a fixed coupling structure, and a movable coupling structure. The pot assembly and the lid assembly are detachably and rotatably connected; the lid assembly is provided with electrical components, and the pot assembly is provided with electrical interfaces; the fixed coupling structure includes a conductor; the movable coupling structure includes a movable coupling member; one of the conductor and the movable coupling member is arranged on the pot assembly, and the other is arranged on the lid assembly; the conductor and the movable coupling member are detachably electrically connected; the movable coupling member is movable relative to the pot assembly or the lid assembly, and the projection of the movable path on the horizontal plane is an arc line around the axis of rotation connecting the pot assembly and the lid assembly; thus, the pot assembly and the lid assembly are detachably and rotatably connected, and while being able to ensure high pressure, the pot assembly and the lid assembly can be electrically connected, which is convenient for use.

Description

Technical Field

[0001] The present invention relates to the technical field of air fryers, and particularly to a multifunctional air fryer, an electric cooker coupling structure, and a cooking method for a multifunctional pressure cooker. Background Art

[0002] Referring to the prior art CN214964693U. A multifunctional air fryer in the prior art includes a pot assembly 1 and a lid assembly 2; the pot assembly 1 includes a pot body 11, and the lid assembly 2 includes a rotatable lid body 21; the pot assembly 1 is hinged to the lid assembly 2 so that the entire lid assembly 2 can be rotated open and held on the pot assembly 1.

[0003] In order to simultaneously realize the high-pressure function and the air fry function, a motor, a fan, etc. are provided on the lid assembly 2, resulting in the weight of the lid assembly 2 being heavier than that of a conventional pressure cooker. When the lid body 21 is made of a metal such as stainless steel, the weight of the lid assembly 2 will further increase.

[0004] The lid body 21 can rotate relative to the lid assembly 2. Rotating the lid body 21 can realize the connection between the lid body 21 and the pot body 11, thereby maintaining high pressure. Correspondingly, in order to simplify the structure, the electrical connection structure between the lid assembly 2 and the pot assembly 1 is realized by a wire passing through the hinge joint of the pot assembly 1 and the lid assembly 2.

[0005] In summary, the prior art has at least the following technical problems.

[0006] First, although the speed of reducing pressure by the solenoid valve is relatively fast, when the solenoid valve is opened to reduce pressure, the internal water vapor will spray out at high speed and generate a large noise, making people unable to feel at ease.

[0007] Second, for the structure where the pot assembly 1 and the lid assembly 2 are hinged, it is easy to make the weight of the multifunctional air fryer unstable and easy to tip over.

[0008] Third, the structure of realizing electrical connection by a wire passing through the hinge joint of the pot assembly 1 and the lid assembly 2 cannot be applied to the detachable and rotatable connection of the pot assembly 1 and the lid assembly 2. Summary of the Invention

[0009] An object of the present invention is to solve or alleviate the above-mentioned third technical problem.

[0010] The means adopted by the present invention is a coupling structure of an electric cooker, which includes a pot assembly, a lid assembly, a fixed coupling structure, and a movable coupling structure. The pot assembly and the lid assembly are detachably and rotatably connected. The lid assembly is provided with electrical components, and the pot assembly is provided with electrical interfaces. The fixed coupling structure includes a conductor. The movable coupling structure includes a movable coupling member. One of the conductor and the movable coupling member is arranged on the pot assembly, and the other is arranged on the lid assembly. The conductor and the movable coupling member are detachably electrically connected. The movable coupling member is movable relative to the pot assembly or the lid assembly, and the projection of the movable path on the horizontal plane is an arc line around the axis of rotation connecting the pot assembly and the lid assembly.

[0011] The effect achieved by the present invention is that the pot assembly and the lid assembly are detachably and rotatably connected, and while ensuring high pressure, the pot assembly and the lid assembly can be electrically connected, which is convenient for use.

[0012] A further technical solution is that the fixed coupling structure includes a first coupling carrier, the first coupling carrier is arranged on the pot assembly and is provided with a conductor cavity, and the conductor is completely placed in the conductor cavity.

[0013] While the conductor will not be deformed by force; electrical safety can be ensured.

[0014] A further technical solution is that the movable coupling structure includes a second coupling carrier fixed on the pot assembly, the movable coupling member includes a coupling boss protruding from the second coupling carrier, and the coupling boss is embedded in the conductor cavity.

[0015] It can ensure that the conductor does not shake and the electrical connection is relatively stable.

[0016] A further technical solution is that the second coupling carrier is provided with a functional opening with an annular sector cross-section, the cross-section of the coupling boss is integrally an annular sector, the middle side wall of the coupling boss is attached to one side wall of the functional opening, and the two end side walls of the coupling boss are attached to the other side wall of the functional opening.

[0017] It can ensure that the coupling boss slides relatively stably in the functional opening, and at the same time, it can ensure that the movable coupling member slides relatively easily.

[0018] A further technical solution is that the second coupling carrier is provided with a sliding groove, the movable coupling member includes a sliding body, and the sliding body is inserted into the sliding groove; the end wall of the sliding body is attached to the end wall of the sliding groove, and the coupling boss passes through the functional opening.

[0019] While the sliding body realizes sliding, it can at least partially block the functional opening to improve the sealing performance.

[0020] A further technical solution also includes a locking groove and a locking member, wherein the locking groove is arranged on a movable coupling member, and the locking member is arranged on a second coupling carrier; the locking member is movable relative to the second coupling carrier and has a vector along the axial line of the rotational connection between the pot assembly and the lid assembly, the lid assembly abuts against the locking member so that the locking member is dislocated from the locking groove, and when the lid assembly abuts against the locking member, the locking member has a tendency to approach the lid assembly, and when the lid assembly is separated from the pot assembly, the locking member abuts against the inner wall of the locking groove.

[0021] It can ensure that when the pot assembly and the cover assembly are separated, the position of the movable coupling part is fixed, so that the cover assembly and the pot assembly are easily aligned and used.

[0022] A further technical solution also includes an elastic member, which is respectively connected to the second coupling carrier and the locking member, the locking groove includes a yield groove and a supporting groove, the locking member includes a trigger body, a supporting body and a guide body, the trigger body and the supporting body are horizontally staggered on a plane passing through the axis of the rotational connection between the pot assembly and the lid assembly, the trigger body is exposed from the second coupling carrier, the guide body and the second coupling carrier are roughly slidably connected in a straight line along the axis of the rotational connection between the pot assembly and the lid assembly, and the trigger body is located in the yield groove when the supporting body is inserted into the supporting groove.

[0023] According to a further technical solution, the abutting body is embedded in the abutting groove, and the abutting groove and / or the abutting body are provided with abutting guide surfaces.

[0024] It can ensure that the abutting body is accurately embedded in the abutting groove, thereby improving the accuracy of position fixing of the movable coupling member.

[0025] A further technical solution is that the sliding body includes a first blocking end and a second blocking end, and the coupling boss is located between the first blocking end and the second blocking end; when one end of the coupling boss is against one end of the functional port, the sum of the central angles corresponding to the part of the coupling boss that can slide in the functional port is the sliding zone angle; the central angle corresponding to the first blocking end is the first blocking angle, and the central angle corresponding to the second blocking end is the second blocking angle, then the sliding zone angle is less than the first blocking angle and less than the second blocking angle.

[0026] When the coupling boss slides in the functional opening, the functional opening is always covered by the sliding body, thereby ensuring sealing.

[0027] Cooking method of a multi-functional pressure cooker. The multi-functional pressure cooker includes the coupling structure of the electric cooker described above and an electronic control device; the pot assembly includes a pot body, and the lid assembly includes a lid made of metal; the pot assembly and the lid assembly are detachably and rotatably connected, so that the pot body and the lid enclose a sealed cooking cavity; the pot body is provided with a lower heating element, and the lid is provided with an upper heating element; inner wind blades with rotational power and outer wind blades with rotational power are respectively arranged on the inner and outer end faces of the lid; a lowest point and a support surface are arranged in the pot body, and the lowest point is lower than the support surface; the pot assembly and the lid assembly are electrically coupled; the inner wind blades, the outer wind blades, the upper heating element, and the lower heating element are all electrically connected to the electronic control device;

[0028] It includes the following steps,

[0029] Place the food to be cooked such as pig's feet on the support surface. At the same time, before or after that, inject water into the cooking cavity corresponding to the height difference between the lowest point and the support surface, so that the water surface of the injected water is lower than or flush with the support surface;

[0030] After that, heat the food to be cooked such as pig's feet under high pressure;

[0031] After that, depressurize the cooking cavity under sealed conditions;

[0032] After that, air fry the food to be cooked such as pig's feet.

[0033] Even if the volume of the food to be cooked such as pig's feet is large, it can ensure that the food to be cooked such as pig's feet is cooked through and has a cooking effect of being crispy on the outside and tender on the inside, and the entire automatic cooking process is relatively safe and quiet, allowing the user to not need to check halfway and feel more at ease.

[0034] In summary, the present invention can achieve the following technical effects,

[0035] 1} The pot assembly and the lid assembly are detachably and rotatably connected. While ensuring high pressure, it can enable electrical connection between the pot assembly and the lid assembly, which is convenient for use.

[0036] 2} It can ensure that when the pot assembly and the lid assembly are separated, the position of the movable coupling part is fixed, which is convenient for the lid assembly to be aligned with the pot assembly and convenient for use.

[0037] 3} Even if the volume of the food to be cooked such as pig's feet is large, it can ensure that the food to be cooked such as pig's feet is cooked through and has a cooking effect of being crispy on the outside and tender on the inside, and the entire automatic cooking process is relatively safe and quiet, allowing the user to not need to check halfway and feel more at ease. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a three-dimensional schematic diagram of a multi-functional air fryer according to an embodiment of the present invention.

[0039] Figure 2It is a three-dimensional exploded view of a multifunctional air fryer according to an embodiment of the present invention.

[0040] Figure 3 It is a three-dimensional exploded view of a multifunctional air fryer according to an embodiment of the present invention.

[0041] Figure 4 It is a top view of a multifunctional air fryer according to an embodiment of the present invention.

[0042] Figure 5 It is a three-dimensional view of the heightening member 113 according to an embodiment of the present invention.

[0043] Figure 6 It is a schematic diagram of Section One SEC1; Arrow One ARR1 indicates the general direction of air flowing out of the heat dissipation opening 231; The input device 91 is not drawn.

[0044] Figure 7 It is a three-dimensional view of the lid assembly 2 according to an embodiment of the present invention.

[0045] Figure 8 It is a three-dimensional view of the movable coupling structure 4 according to an embodiment of the present invention.

[0046] Figure 9 It is a three-dimensional exploded view of the movable coupling structure 4 according to an embodiment of the present invention.

[0047] Figure 10 It is a three-dimensional exploded view of the movable coupling structure 4 according to an embodiment of the present invention.

[0048] Figure 11 It is a view of the movable coupling member 42 according to an embodiment of the present invention.

[0049] Figure 12 It is a three-dimensional view of the movable coupling structure 4 according to an embodiment of the present invention; The carrier box 418 is not drawn.

[0050] Figure 13 It is a top view of the movable coupling structure 4 according to an embodiment of the present invention.

[0051] Figure 14 It is a schematic diagram of Section Two SEC2.

[0052] Figure 15 It is a schematic diagram of Section Three SEC3.

[0053] Figure 16 It is a top view of the movable coupling structure 4 according to the second embodiment of the present invention; The dashed line indicates the contour of the sliding body 421.

[0054] Arrow 1 ARR1; Section 1 SEC1; Section 2 SEC2; Section 3 SEC3; Pot assembly 1; Pot body 11; Lowest point 111; Support surface 112; Lifting piece 113; Lifting foot 114; Lower heating element 119; Pot gap 12; Pot body carrier 13; Air inlet 131; Sealing member 19; Sealing member bracket 191; Lid assembly 2; Lid body 21; Inner air blade 211; Outer air blade 212; Driving device 213; Upper heating element 219; Lid cavity 22; Lid housing 23; Heat dissipation port 231; Fixed coupling structure 3; First coupling carrier 31; Conductor cavity 311; Conductor 32; Movable coupling structure 4; Second coupling carrier 41; Sliding groove 411; Function port 413; Sliding area corner 414; Carrier box 418; Base 419; Movable coupling member 42; Sliding body 421; Electrical connection body 422; Coupling boss 423; First shielding end 424; Second shielding end 425; First shielding angle 426; Second shielding angle 427; Electrical connection body bracket 429; Locking structure 5; Locking groove 51; Relief groove 511; Restraining groove 512; Restraining guiding surface 513; Locking member 52; Trigger body 521; Restraining body 522; Guiding body 523; Guiding hole 524; Guiding column 525; Elastic member 53; Rotating connection structure 8; Rotating connection ear 81; Rotating relief groove 82; Electric control device 9; Input device 91. Detailed implementation mode

[0055] The following will describe the detailed implementation mode of the present invention in conjunction with the specification drawings.

[0056] As a specific embodiment, the multifunctional air fryer of the embodiment of the present invention includes a pot assembly 1, a lid assembly 2 and an electric control device 9; the pot assembly 1 includes a pot body 11, and the lid assembly 2 includes a lid body 21 made of metal. The metal refers to a hard metal with a thermal conductivity higher than that of ordinary plastics, including but not limited to ferroalloys and aluminum alloys.

[0057] The pot assembly 1 and the lid assembly 2 are detachably and rotatably connected, so that the pot body 11 and the lid body 21 enclose a closed cooking cavity (not marked in the drawings).

[0058] The detachable connection between the pot assembly 1 and the lid assembly 2 means that the physical connection between the pot assembly 1 and the lid assembly 2 can be completely disconnected, rather than the pot assembly 1 and the lid assembly 2 being hinged or having a certain physical connection.

[0059] The rotational connection between the pot assembly 1 and the lid assembly 2 means that after the pot assembly 1 rotates a certain angle relative to the lid assembly 2, the pot assembly 1 is restricted from moving away from each other along the rotation axis of the two. As one of the specific implementation manners, both the pot assembly 1 and the lid assembly 2 are provided with rotational connection ears 81 and rotational relief grooves 82. The rotational connection ear 81 of the pot assembly 1 passes through the rotational relief groove 82 of the lid assembly 2, and then the pot assembly 1 is rotated so that the rotational connection ear 81 of the pot assembly 1 abuts against the rotational connection ear 81 of the lid assembly 2. After the pot assembly 1 rotates a certain angle relative to the lid assembly 2, the pot assembly 1 is restricted from moving away from each other along the rotation axis of the two. As one of the specific implementation manners, the pot assembly 1 and the lid assembly 2 are threadedly connected, so that the pot assembly 1 is restricted from moving away from and approaching each other along the rotation axis of the two.

[0060] The pot body 11 is provided with a lower heating element 119, and the lid body 21 is provided with an upper heating element 219.

[0061] Inner wind blades 211 with rotational power and outer wind blades 212 with rotational power are respectively provided on the inner and outer end faces of the lid body 21. The inner end face of the lid body 21 refers to the end face close to the cooking cavity. As one of the specific implementation manners, both the inner wind blades 211 and the outer wind blades 212 are fixedly connected to the rotational output shaft of the driving device 213, so that both the inner wind blades 211 and the outer wind blades 212 have rotational power.

[0062] The pot body 11 is provided with a lowest point 111 and a support surface 112, and the lowest point 111 is lower than the support surface 112. The support surface 112 is used to support the cooking object such as a pig's foot. As one of the specific implementation manners, the bottom end face of the pot body 11 bulges upward to form the support surface 112, and the height difference between the lowest point 111 and the support surface 112 can be adjusted accordingly as needed. As one of the specific implementation manners, a heightening member 113 is detachably provided in the pot body 11 to form the support surface 112, and the top end face of the heightening member 113 is the support surface 112. As one of the specific implementation manners, the heightening member 113 is provided with heightening feet 114 placed on the bottom end face of the pot body 11, so that the heightening member 113 is detachable.

[0063] The pot assembly 1 and the lid assembly 2 are electrically coupled. For example, both the pot assembly 1 and the lid assembly 2 are provided with and exposed flexible wires, and the flexible wires of the two are coupled to achieve electrical coupling. Of course, it is also one of the implementation manners that the pot assembly 1 and the lid assembly 2 achieve electrical coupling through the structures described later.

[0064] The inner wind blade 211, the outer wind blade 212, the upper heating element 219, and the lower heating element 119 are all electrically connected to the electric control device 9. For example, the electric control device 9 includes a circuit board (not shown in the drawings) provided on the cover assembly 2 and an input device 91 provided on the side of the cover assembly 2. The input device 91 is at least a device such as a touch screen or a keypad that can input an electrical signal to the circuit board. The driving device 213 is electrically connected to the circuit board, and the upper heating element 219 and the lower heating element 119 are respectively electrically connected to the circuit board through relays, so that the inner wind blade 211, the outer wind blade 212, the upper heating element 219, and the lower heating element 119 are all electrically connected to the electric control device 9.

[0065] A cooking method for a multi-functional pressure cooker is to place the object to be cooked such as pig's feet on the supporting surface 112, and at the same time, before or after that, inject water into the cooking cavity corresponding to the height difference between the lowest point 111 and the supporting surface 112, so that the water surface of the injected water is lower than or flush with the supporting surface 112.

[0066] After that, heat the object to be cooked such as pig's feet under high pressure; specifically, start the lower heating element 119, so that the water in the cooking cavity corresponding to the height difference between the lowest point 111 and the supporting surface 112 is heated to form water vapor, so that a high pressure (referring to the air pressure higher than the atmospheric pressure, usually about two atmospheric pressures) is formed in the cooking cavity, and the object to be cooked such as pig's feet is processed until a certain specific condition (at least one of the elapsed time, temperature threshold, and pressure threshold) is reached, and the object to be cooked such as pig's feet is processed to a certain extent, such as being completely cooked; during this process, optionally, the inner wind blade 211 starts to rotate to make the gas in the cooking cavity circulate, which can improve the uniformity of the processing of the object to be cooked such as pig's feet to a certain extent.

[0067] After that, depressurize the cooking cavity under airtight conditions; specifically, turn off the lower heating element 119, and at the same time, before or after that, start the outer wind blade 212. The outer end surface of the cover 21 is affected by the air driven by the outer wind blade 212. Using the high thermal conductivity of the cover 21 made of metal, the gas in the cooking cavity can dissipate heat relatively quickly through the cover 21 under airtight conditions until a certain specific condition (at least one of the elapsed time, temperature threshold, and pressure threshold) is reached.

[0068] After that, air-fry the object to be cooked such as pig's feet; specifically, start the inner wind blade 211, and at the same time, before or after that, start the upper heating element 219; the high temperature heated by the upper heating element 219 is driven by the inner wind blade 211 and acts on the object to be cooked such as pig's feet to air-fry the object to be cooked such as pig's feet; until a certain specific condition (at least one of the elapsed time, temperature threshold, and pressure threshold) is reached.

[0069] After that, the cooking is completed; rotate and open the lid assembly 2, and the cooked food such as pig's feet can be taken out. At this time, the cooked food such as pig's feet is first heated under high pressure and then air-fried. Even if the volume of the cooked food such as pig's feet is large, it can ensure that the cooked food such as pig's feet is cooked through and has the cooking effect of being crispy on the outside and tender on the inside.

[0070] The cooking method of the above-mentioned multi-functional pressure cooker is automatically realized through a program preset in the electronic control device 9. Among them, compared with controlling the electromagnetic valve connected to the cooking cavity by the electronic control device 9 to reduce the pressure, although the pressure reduction speed in the cooking cavity is slightly slowed down, there will be no high-pressure steam spraying out, which is relatively safe, and there will be no sound of high-pressure steam spraying out; thus making the entire automatic cooking process relatively safe and quiet, so that the user does not need to check in the middle and can feel more at ease.

[0071] As one of the specific implementation manners, the pot assembly 1 is provided with an input device 91 electrically connected to the electronic control device 9. The lid assembly 2 includes a lid outer shell 23 with a heat dissipation port 231 provided on the back side. A lid cavity 22 is formed between the lid outer shell 23 and the lid body 21. The outer wind blade 212 is arranged in the lid cavity 22, and the lid cavity 22 communicates with the heat dissipation port 231 to ensure safety during use. The back side of the lid assembly 2 refers to the side of the lid assembly 2 opposite to the input device 91.

[0072] As one of the specific implementation manners, it further includes a highly heat-conductive seal 19. The seal 19 is arranged between the pot body 11 and the lid body 21 and abuts against the pot body 11 and the lid body 21 respectively. Highly heat-conductive means that the thermal conductivity is higher than that of the material with the highest thermal conductivity among the traditional silica gel and rubber used to manufacture the seal 19. For example, the seal 19 is made of silica gel with iron-based heat-conductive particles added inside. While ensuring the sealing performance, it can make the heat of the pot body 11 be transferred to the lid body 21 through the seal 19, and can improve the pressure reduction speed under the closed condition.

[0073] As one of the specific implementation manners, the lid body 21 is provided with a seal support 191. The cross section of the seal 19 is integrally U-shaped and sleeved on the seal support 191.

[0074] As one of the specific implementation manners, the pot assembly 1 includes a pot body carrier 13. A pot gap 12 is formed between the pot body 11 and the pot body carrier 13. The pot body 11 is provided with an air inlet 131 communicating with the pot gap 12 and located below the pot body 11. It can increase the contact area between the pot body 11 and the outside (the outside of the entire multi-functional air fryer), and can improve the pressure reduction speed under the closed condition.

[0075] As one of the specific implementation manners, the pot gap 12 communicates with the cover cavity 22. Air can sequentially pass through the air inlet 131, the pot gap 12, the cover cavity 22, and the heat dissipation port 231 and be discharged, so that the heat of the pot body 11 can be directly taken away by the flowing air, and the pressure reduction speed under sealed conditions can be increased. For example, a through hole (not shown in the drawings) is provided in the portion of the cover body 21 located outside the seal 19, and the pot gap 12 and the cover cavity 22 are communicated through the through hole.

[0076] The coupling structure of the electric pot according to the embodiment of the present invention includes a pot assembly 1, a cover assembly 2, a fixed coupling structure 3, and a movable coupling structure 4. The pot assembly 1 and the cover assembly 2 are detachably and rotatably connected; the cover assembly 2 is provided with electrical components (not shown in the drawings), and the pot assembly 1 is provided with electrical interfaces (not shown in the drawings). The electrical components are devices that work by electric energy, including but not limited to motors, solenoid valves, temperature sensors, display panels, circuit boards, etc. The electrical interface is an interface for electric energy, including but not limited to an interface for connecting to the mains. Of course, the reverse setting is also optional. In other words, the pot assembly 1 is provided with electrical components; the cover assembly 2 is provided with electrical interfaces.

[0077] The fixed coupling structure 3 includes a first coupling carrier 31 and a conductor 32 fixed relative to the first coupling carrier 31; the movable coupling structure 4 includes a second coupling carrier 41 and a movable coupling member 42; one of the first coupling carrier 31 and the second coupling carrier 41 is fixed on the pot assembly 1, and the other is fixed on the cover assembly 2.

[0078] The conductor 32 is detachably electrically connected to the movable coupling member 42, for example, the detachable electrical connection is achieved through the following manner.

[0079] The movable coupling member 42 is movable relative to the second coupling carrier 41, and the movable path is an arc line around the axis of rotation of the rotatable connection between the pot assembly 1 and the cover assembly 2.

[0080] As one of the specific implementation manners, the electric control device 9 and the movable coupling member 42 are electrically connected through a flexible wire in the second coupling carrier 41, the driving device 213 is electrically connected to the conductor 32; the electrical interface is electrically connected to the electric control device 9.

[0081] During the process of rotating the cover assembly 2 relative to the pot assembly 1, the movable coupling member 42 rotates with the cover assembly 2 to maintain the electrical connection between the pot assembly 1 and the cover assembly 2.

[0082] Rotate the cover assembly 2 relative to the pot assembly 1 and then lift the cover assembly 2, and the pot assembly 1 can be completely separated from the cover assembly 2; there is no need to worry that the self-weight of the cover assembly 2 will cause the pot assembly 1 to tip over, and the cover assembly 2 will not be higher than the pot assembly 1 to interfere with the operation of the user, thus facilitating use.

[0083] The lid assembly 2 is an integral unit, and components such as the lid body 21 will not rotate relative to the lid assembly 2. A relatively large force can be applied to the lid body 21 through the lid assembly 2, so that the sealing performance between the lid body 21 and the pot body 11 is relatively high, thereby ensuring the high pressure in the cooking cavity.

[0084] In other words, the pot assembly 1 and the lid assembly 2 are detachably and rotatably connected. While ensuring high pressure, the pot assembly 1 and the lid assembly 2 can be electrically connected, which is convenient for use.

[0085] As one of the specific implementation manners, the first coupling carrier 31 is arranged on the pot assembly 1 and is provided with a conductor cavity 311, and the conductor 32 is completely placed in the conductor cavity 311. The conductor 32 is a metal rod. When viewed from the side, the bottom end of the conductor 32 is higher than the bottom end of the first coupling carrier 31, so that the conductor 32 is completely placed in the conductor cavity 311. When the lid assembly 2 is placed on a tabletop or the like, the conductor 32 will not be deformed by force; even when there is relatively shallow water on the tabletop or the like, the conductor 32 will not come into contact with the water, which can ensure electrical safety.

[0086] As one of the specific implementation manners, the movable coupling member 42 includes a coupling boss 423 protruding from the second coupling carrier 41, and the coupling boss 423 is embedded in the conductor cavity 311. The movable coupling member 42 includes an electricity - connecting body 422 with elasticity. Two opposite electricity - connecting bodies 422 abut against a conductor 32. The electricity - connecting body 422 is fixed on the electricity - connecting body frame 429 of the movable coupling member 42. The conductor 32 passes through the coupling boss 423 and abuts against the electricity - connecting body 422, realizing a detachable electrical connection between the conductor 32 and the movable coupling member 42. It can ensure that the conductor 32 does not shake and the electrical connection is relatively stable.

[0087] As one of the specific implementation manners, the second coupling carrier 41 is provided with a functional opening 413 with an annular - sector cross - section. The overall cross - section of the coupling boss 423 is annular - sector. The middle side wall of the coupling boss 423 is attached to one side wall of the functional opening 413, and the two end side walls of the coupling boss 423 are attached to the other side wall of the functional opening 413. It can ensure that when the coupling boss 423 slides in the functional opening 413, it is relatively stable and does not shake or shakes less. At the same time, the contact surface between the coupling boss 423 and the side wall of the functional opening 413 is relatively small, which can ensure that the movable coupling member 42 slides relatively easily. The axis line of the rotational connection between the pot assembly 1 and the lid assembly 2 generally passes through the center of the cross - section of the functional opening 413. The radius of the annular - sector of the coupling boss 423 is relatively small, and the axis line is located deviated from the axis line of the rotational connection between the pot assembly 1 and the lid assembly 2. The cross - sections of both ends of the coupling boss 423 are circular.

[0088] As one of the specific embodiments, the second coupling carrier 41 is provided with a sliding groove 411, the movable coupling member 42 includes a sliding body 421, and the sliding body 421 is inserted into the sliding groove 411; the end wall of the sliding body 421 is in contact with the end wall of the sliding groove 411, so that the movable coupling member 42 is fixed relative to the second coupling carrier 41 in the direction along the axis of rotation connection between the pot assembly 1 and the lid assembly 2; the coupling boss 423 passes through the function port 413. While the sliding body 421 realizes sliding, it can at least partially block the function port 413 to improve the sealing performance. The second coupling carrier 41 includes a carrier box 418 and a base 419, and the gap between the carrier box 418 and the base 419 is the sliding groove 411. As one of the specific embodiments, the cross-section of the sliding body 421 and the cross-section of the sliding groove 411 are both annular sectors coaxial with the axis of rotation connection between the pot assembly 1 and the lid assembly 2, and the side wall of the sliding body 421 is in contact with the side wall of the sliding groove 411; it can ensure that the sliding body 421 slides stably in the sliding groove 411 without shaking.

[0089] As one of the specific embodiments, it further includes a locking groove 51 and a locking member 52. The locking groove 51 is provided on the movable coupling member 42, and the locking member 52 is provided on the second coupling carrier 41; the locking member 52 is movable relative to the second coupling carrier 41 and has a vector along the axis of rotation connection between the pot assembly 1 and the lid assembly 2. When the lid assembly 2 abuts against the locking member 52, the locking member 52 is displaced from the locking groove 51. When the lid assembly 2 abuts against the locking member 52, the locking member 52 has a tendency to approach the lid assembly 2 (for example, relying on the adsorption magnetic force between the lid assembly 2 and the locking member 52). When the lid assembly 2 is separated from the pot assembly 1, the locking member 52 abuts against the inner wall of the locking groove 51. As an optional embodiment, the locking groove 51 and the locking member 52 are arranged in reverse, that is, the locking member 52 is provided on the sliding body 421, and the locking groove 51 is provided on the second coupling carrier 41. When the cooking cavity needs to be sealed (for the first time), the lid assembly 2 is brought close to the pot assembly 1, so that the lid assembly 2 abuts against the locking member 52 and the locking member 52 is displaced from the locking groove 51. At this time, the movable coupling member 42 can slide. Rotate the lid assembly 2 so that the lid assembly 2 is rotationally connected to the pot body 11 and maintains electrical connection. When the cooking cavity needs to be opened, rotate the lid assembly 2 in the reverse direction until the locking member 52 abuts against the inner wall of the locking groove 51. At this time, the movable coupling member 42 cannot slide and is locked. Then, move the lid assembly 2 away from the pot assembly 1 to separate the lid assembly 2 from the pot assembly 1; at the same time, the position of the movable coupling member 42 is fixed. When the lid assembly 2 needs to be brought close to the pot assembly 1 to seal the cooking cavity (for the second time), the lid assembly 2 only needs to approach the pot assembly 1 in the same (as the first time) posture; in other words, it can ensure that when the pot assembly 1 and the lid assembly 2 are separated, the position of the movable coupling member 42 is fixed, which is convenient for the alignment of the lid assembly 2 and the pot assembly 1 and convenient for use.

[0090] As one of the specific embodiments, it also includes an elastic member 53, which is respectively connected to the second coupling carrier 41 and the locking member 52, so that the locking member 52 continues to have a tendency to approach the lid assembly 2; the locking groove 51 includes a yielding groove 511 and a resisting groove 512, and the locking member 52 includes a triggering body 521, a resisting body 522 and a guide body 523, the triggering body 521 and the resisting body 522 are horizontally staggered on a plane passing through the axis of the rotational connection between the pot assembly 1 and the lid assembly 2, the triggering body 521 is exposed from the second coupling carrier 41, the guide body 523 and the second coupling carrier 41 are roughly slidably connected along the axis of the rotational connection between the pot assembly 1 and the lid assembly 2, and the triggering body 521 is located in the yielding groove 511 when the resisting body 522 is inserted into the resisting groove 512. As one of the specific embodiments, the yielding groove 511 is connected to the outside from one end of the movable coupling member 42. The elastic member 53 is a spring and its two ends are respectively against the locking member 52 and the second coupling carrier 41 to provide a repulsive force. The guide body 523 fits with the second coupling carrier 41, and / or the guide hole 524 on the guide body 523 fits with the guide column 525 on the second coupling carrier 41, so that the guide body 523 and the second coupling carrier 41 are linearly slidably connected roughly along the axis of the rotational connection between the pot assembly 1 and the lid assembly 2.

[0091] As one of the specific implementations, the abutting body 522 is embedded in the abutting groove 512, and the abutting groove 512 and / or the abutting body 522 are provided with an abutting guide surface 513. The abutting guide surface 513 is but not limited to an inclined plane. The abutting guide surface 513 can play a guiding role, and can ensure that the abutting body 522 is accurately embedded in the abutting groove 512, thereby improving the accuracy of the position fixing of the movable coupling member 42.

[0092] Second embodiment.

[0093] The sliding body 421 includes a first shielding end 424 and a second shielding end 425, and the coupling boss 423 is located between the first shielding end 424 and the second shielding end 425; when one end of the coupling boss 423 abuts against one end of the functional port 413, the sum of the central angles corresponding to the part of the coupling boss 423 that can slide within the functional port 413 is the sliding area angle 414; the central angle corresponding to the first shielding end 424 (the central angle formed by the edge of the first shielding end 424, the axis line of the rotational connection between the pot assembly 1 and the lid assembly 2, and the closer side of the coupling boss 423) is the first shielding angle 426, and the central angle corresponding to the second shielding end 425 (the central angle formed by the edge of the second shielding end 425, the axis line of the rotational connection between the pot assembly 1 and the lid assembly 2, and the closer side of the coupling boss 423) is the second shielding angle 427, then the sliding area angle 414 is less than the first shielding angle 426 and less than the second shielding angle 427. When the coupling boss 423 slides within the functional port 413, the functional port 413 is always shielded by the sliding body 421, thereby ensuring the sealing performance, preventing or reducing the water from passing through the functional port 413 when opening the lid, which is relatively safe.

[0094] As used in the present invention, terms such as first, second, etc. do not represent any order, quantity or importance, but are only used for distinction.

[0095] As used in the present invention, terms such as a, an, etc. do not represent a limitation of quantity, but represent the existence of at least one of the mentioned objects.

[0096] As used in the present invention, terms indicating orientation or position such as top, bottom, side, longitudinal, transverse, middle, center, outer, inner, horizontal, vertical, left, right, above, below, etc. mean to reflect the relative position, rather than the absolute position.

[0097] As used in the present invention, terms such as approximately, overall, approximate, similar, etc. are limiting terms used to indicate the existence of features but allowing certain deviations. The amount of allowable deviation may vary depending on the specific background; for example, for dimensional deviations, the specific background that can be depended on includes but is not limited to the national standards for dimensional tolerances.

Claims

1. Coupling structure of an electric cooker, characterized in that, It includes a pot assembly (1), a lid assembly (2), a fixed coupling structure (3) and a movable coupling structure (4). The pot assembly (1) is detachably and rotatably connected to the lid assembly (2). The lid assembly (2) is provided with electrical components, and the pot assembly (1) is provided with electrical interfaces. The fixed coupling structure (3) includes a conductor (32). The movable coupling structure (4) includes a movable coupling member (42). One of the conductor (32) and the movable coupling member (42) is disposed on the pot assembly (1), and the other is disposed on the lid assembly (2). The conductor (32) is detachably and electrically connected to the movable coupling member (42). The movable coupling member (42) is movable relative to the pot assembly (1) or the lid assembly (2), and the projection of the movable path on the horizontal plane is an arc line around the axis of rotation connecting the pot assembly (1) and the lid assembly (2); the fixed coupling structure (3) includes a first coupling carrier (31), the first coupling carrier (31) is arranged on the pot assembly (1) and is provided with a conductor cavity (311), and the conductor (32) is completely placed in the conductor cavity (311); the movable coupling structure (4) includes a second coupling carrier (41) fixed on the pot assembly (1), the movable coupling member (42) includes a coupling boss (423) protruding from the second coupling carrier (41), and the coupling boss (423) is embedded in the conductor cavity (311); the second coupling carrier (41) is provided with a functional opening (413) with a ring-sector cross-section, the cross-section of the coupling boss (423) is integrally a ring-sector, the middle side wall of the coupling boss (423) is attached to one side wall of the functional opening (413), and the two end side walls of the coupling boss (423) are attached to the other side wall of the functional opening (413); the second coupling carrier (41) is provided with a sliding groove (411), the movable coupling member (42) includes a sliding body (421), and the sliding body (421) is inserted into the sliding groove (411); the end wall of the sliding body (421) is attached to the end wall of the sliding groove (411), and the coupling boss (423) passes through the functional opening (413); further includes a locking groove (51) and a locking member (52), the locking groove (51) is arranged on the movable coupling member (42), and the locking member (52) is arranged on the second coupling carrier (41); the locking member (52) is movable relative to the second coupling carrier (41) and has a vector along the axis of rotation connecting the pot assembly (1) and the lid assembly (2), the lid assembly (2) abuts against the locking member (52) so that the locking member (52) is displaced from the locking groove (51), when the lid assembly (2) abuts against the locking member (52), the locking member (52) has a tendency to approach the lid assembly (2), when the lid assembly (2) is separated from the pot assembly (1), the locking member (52) abuts against the inner wall of the locking groove (51); further includes an elastic member (53), the elastic member (53) is respectively connected to the second coupling carrier (41) and the locking member (52), the locking groove (51) includes a relief groove (511) and a holding groove (512), the locking member (52) includes a trigger body (521), a holding body (522) and a guiding body (523), the trigger body (521) and the holding body (522) are horizontally offset in a plane passing through the axis of rotation connecting the pot assembly (1) and the lid assembly (2), the trigger body (521) is exposed from the second coupling carrier (41), the guiding body (523) is linearly slidably connected to the second coupling carrier (41) substantially along the axis of rotation connecting the pot assembly (1) and the lid assembly (2), and when the holding body (522) is inserted into the holding groove (512), the trigger body (521) is located in the relief groove (511).

2. The coupling structure of the electric cooker according to claim 1, characterized in that, The holding body (522) is embedded in the holding groove (512), and the holding groove (512) and / or the holding body (522) is provided with a holding guiding surface (513).

3. The coupling structure of the electric cooker according to claim 1, characterized in that, The sliding body (421) includes a first shielding end (424) and a second shielding end (425), and the coupling boss (423) is located between the first shielding end (424) and the second shielding end (425); when one end of the coupling boss (423) abuts against one end of the functional port (413), the sum of the central angles corresponding to the part that the coupling boss (423) can slide within the functional port (413) is the sliding zone angle (414); the central angle corresponding to the first shielding end (424) is the first shielding angle (426), and the central angle corresponding to the second shielding end (425) is the second shielding angle (427), and it satisfies that the sliding zone angle (414) is less than the first shielding angle (426) and less than the second shielding angle (427).

4. A cooking method for a multi-functional pressure cooker, the multi-functional pressure cooker including the coupling structure of the electric cooker described in claim 1 and an electric control device (9); the pot assembly (1) includes a pot body (11), and the lid assembly (2) includes a lid body (21) made of metal; the pot assembly (1) and the lid assembly (2) are detachably and rotatably connected, so that the pot body (11) and the lid body (21) enclose a sealed cooking cavity; the pot body (11) is provided with a lower heating element (119), and the lid body (21) is provided with an upper heating element (219); the inner and outer end faces of the lid body (21) are respectively provided with an inner wind blade (211) with rotational power and an outer wind blade (212) with rotational power; a lowest point (111) and a support surface (112) are arranged inside the pot body (11), and the lowest point (111) is lower than the support surface (112); the pot assembly (1) and the lid assembly (2) are electrically coupled; the inner wind blade (211), the outer wind blade (212), the upper heating element (219), and the lower heating element (119) are all electrically connected to the electric control device (9); It is characterized in that including the following steps, placing the object to be cooked on the support surface (112), and simultaneously or before or after that, injecting water into the cooking cavity corresponding to the height difference between the lowest point (111) and the support surface (112), so that the water surface of the injected water is lower than or flush with the support surface (112); After that, heating the object to be cooked under high pressure; After that, depressurizing the cooking cavity under sealed conditions; After that, air-frying the object to be cooked.

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