Air fryer and control method thereof

Abstract

The invention provides an air fryer and a control method of the air fryer, and relates to the technical field of cooking equipment. The air fryer includes: a body including a cooking cavity; the evaporation container comprises a water inlet, a steam generation cavity and a steam outlet, and the steam outlet is communicated with the cooking cavity; the heating element is used for heating the evaporation container; the switch assembly is connected with the water inlet and comprises an opening state and a closing state, the water inlet is opened by the switch assembly in the opening state, and the water inlet is closed by the switch assembly in the closing state; and the heating element is further used for heating the triggering assembly, the triggering assembly can execute a triggering action according to the temperature of the evaporation container and / or the temperature of the heating element, and the triggering action is used for switching the switch assembly to the on state.

Description

Technical Field

[0001] The present invention relates to the technical field of cooking appliances, and in particular, to an air fryer and a control method for an air fryer. Background Art

[0002] In related technologies, to avoid insufficient moisture content and dry texture of food, an air fryer can set a steam generating device to replenish water for the food.

[0003] On the steam generating device, automatic water inlet and steam preparation need to be realized by two sets of independently operating electric control mechanisms, but the reliability of arranging two sets of independent electric control mechanisms is poor, and problems such as dry burning of the steam generating device and food soaking in water are likely to occur.

[0004] Therefore, how to overcome the above technical defects has become an urgent technical problem to be solved. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0006] To this end, a first aspect of the present invention provides an air fryer.

[0007] A second aspect of the present invention provides a control method for an air fryer.

[0008] In view of this, a first aspect of the present invention provides an air fryer, which includes: a main body including a cooking cavity; an evaporation container including a water inlet, a steam generating cavity, and a steam outlet, the steam outlet being communicated with the cooking cavity; a heating element for heating the evaporation container; a switch assembly connected to the water inlet, the switch assembly including an open state and a closed state, the switch assembly opening the water inlet in the open state and closing the water inlet in the closed state; a trigger assembly, the heating element is also used to heat the trigger assembly, and the trigger assembly can perform a trigger action according to the temperature of the evaporation container and / or the temperature of the heating element, and the trigger action is used to switch the switch assembly to the open state

[0009] This application defines an air fryer, which can heat and humidify food through high-temperature steam.

[0010] Specifically, the air fryer includes a main body, an evaporation container, and a heating element. The main body is the main frame structure of the air fryer, used to position and support other working structures on the air fryer. A cooking cavity is formed inside the main body, and food is placed in the cooking cavity. A steam generation cavity is formed inside the evaporation container, and a water inlet and a steam outlet communicating with the steam generation cavity are provided on the evaporation container. The heating element is connected to the evaporation container, and when the heating element is turned on, the heat generated by itself can be transferred to the evaporation container to increase the temperature of the evaporation container. During the steam preparation process, the liquid enters the steam generation cavity through the water inlet, and the high-temperature evaporation container heated by the heating element heats the liquid into high-temperature steam, and finally the high-temperature steam is introduced into the cooking cavity through the steam outlet.

[0011] On this basis, the air fryer further includes a switch assembly and a trigger assembly. The switch assembly is connected to the water inlet of the evaporation container. The switch assembly can control the opening and closing of the water inlet by switching its own state. When the water inlet is open, the liquid can flow into the evaporation container to start steam preparation. When the water inlet is closed, the liquid is blocked by the switch assembly and cannot flow into the evaporation container.

[0012] The trigger assembly is connected to at least one of the evaporation container and the heating element. After the heating element is turned on, the heat can also be transferred to the trigger assembly, enabling the trigger assembly to sense the heating temperature of the steam generation cavity, or making at least part of the trigger assembly reach a temperature close to that of the evaporation container and the heating element. Subsequently, the trigger assembly can perform a trigger action according to the temperatures of the evaporation container and the heating element. This trigger action acts on the switch assembly, specifically by contacting the switch assembly to switch the switch assembly from the closed state to the open state, thereby opening the water inlet of the evaporation container.

[0013] Thus, through the trigger assembly and the switch assembly, the linkage between the heating element and the switch is realized, so that after the heating element is turned on, the switch assembly can automatically open the water inlet of the evaporation container when the temperatures of the evaporation container and the heating element reach the standard, thereby realizing automatic water supply for the evaporation container. On the one hand, it can keep the water inlet closed when the temperature of the evaporation container does not reach the steam preparation temperature, avoiding the liquid that has not been heated to the steam state from directly pouring into the cooking cavity. On the other hand, it can timely open the water inlet when the temperature of the evaporation container reaches the standard steam preparation temperature, avoiding dry burning and damage of the evaporation container. Thus, the problems of dry burning and water immersion existing in the related technology are solved. At the same time, realizing the linkage between the heating element and the switch through the trigger assembly can reduce the electrical control complexity of the air fryer, which is beneficial to reducing the cost of the air fryer. Furthermore, the technical effects of optimizing the structure of the air fryer, improving the safety and reliability of the air fryer, and reducing the production cost of the air fryer are achieved.

[0014] In addition, the above-mentioned air fryer provided by the present invention may also have the following additional technical features:

[0015] In the above technical solution, specifically, the switch assembly includes: a valve body connected to the evaporation container and including a flow channel communicating with the water inlet; a valve core disposed in the valve body, the valve core including a first position and a second position. When the valve core is in the first position, the valve core blocks the flow channel, and when the valve core is in the second position, the flow channel is opened; wherein, the triggering action is used to drive the valve core to move to the second position.

[0016] In any of the above technical solutions, specifically, the valve body includes: a valve seat connected to the evaporation container; a valve cover connected to the valve seat, the valve cover including an inlet communicating with the water inlet; a valve plate disposed between the valve seat and the valve cover and connected to the valve core, and the valve cover and the valve plate enclose a flow channel.

[0017] In any of the above technical solutions, specifically, the valve body further includes: an elastic part connected to the valve plate and the valve core for driving the valve core to reset to the first position.

[0018] In any of the above technical solutions, specifically, the valve body further includes: an elastic element with two ends respectively abutting against the valve cover and the valve core for driving the valve core to reset to the first position.

[0019] In any of the above technical solutions, specifically, the valve body further includes: a sealing groove provided in one of the valve cover and the valve plate and surrounding the flow channel; a sealing rib provided in the other of the valve cover and the valve plate and located in the sealing groove.

[0020] In any of the above technical solutions, specifically, the trigger assembly includes: a driving member connected to the evaporation container and / or the heating element, at least part of the driving member is formed by shape memory metal, and the driving member can push the valve core;

[0021] In any of the above technical solutions, specifically, the trigger assembly includes: a pushing member connected to the driving member, and the deformed driving member pushes the valve core through the pushing member.

[0022] In any of the above technical solutions, specifically, the driving member includes: an inner ring connected to the evaporation container and / or the heating element; a shape memory metal ring connected to the inner ring and surrounding the inner ring, and the heated shape memory metal ring bends towards the direction where the valve core is located.

[0023] In any of the above technical solutions, specifically, the air fryer further includes: a heat conducting member connected to the evaporation container, the heating element and the trigger assembly.

[0024] In any of the above technical solutions, specifically, the evaporation container is tubular, and the air fryer further includes: a first conduit located in the switch assembly and communicating with the water inlet; a second conduit connecting the steam outlet.

[0025] In any of the above technical solutions, specifically, the heating element is an electric heating tube, and the electric heating tube is arranged side by side with the evaporation container.

[0026] In any of the above technical solutions, specifically, the cross-sectional area of at least a part of the first conduit ranges from: greater than or equal to 0.7 mm 2 , and less than or equal to 12.6 mm 2 .

[0027] In any of the above technical solutions, specifically, the evaporation container is a U-shaped tube, the heating element is U-shaped corresponding to the evaporation container, and the evaporation container and the heating element are arranged side by side.

[0028] In any of the above technical solutions, specifically, the evaporation container is an L-shaped tube, the heating element is L-shaped corresponding to the evaporation container, and the evaporation container and the heating element are arranged side by side.

[0029] In any of the above technical solutions, specifically, the evaporation container and the heating element are wound around the periphery of the trigger assembly.

[0030] In any of the above technical solutions, specifically, the air fryer further includes: a flow disturbing member disposed in the evaporation container for disturbing the liquid in the evaporation container.

[0031] In any of the above technical solutions, specifically, the air fryer further includes: a liquid storage assembly connected to the switch assembly and including a liquid storage chamber communicating with the water inlet.

[0032] In any of the above technical solutions, specifically, the liquid storage assembly includes: a water tank detachably connected to the switch assembly, including a liquid storage chamber and a drain port; a sealing valve disposed at the drain port; when the water tank is connected to the switch assembly, the sealing valve abuts against the switch assembly and the sealing valve opens the drain port; when the sealing valve is separated from the valve cover, the sealing valve closes the drain port.

[0033] In any of the above technical solutions, specifically, the air fryer further includes: a first temperature controller disposed on the body for detecting the real-time temperature of the cooking chamber; wherein, in response to the real-time temperature reaching the first temperature value, the steam generating assembly operates.

[0034] A second aspect of the present invention provides a control method for an air fryer, which is applied to the air fryer in any of the above technical solutions. The air fryer includes a body, a hot air assembly and a steam generating assembly. The body includes a cooking chamber. The hot air assembly is used to blow high-temperature air flow into the cooking chamber, and the steam generating assembly is used to deliver steam to the cooking chamber. The control method includes:

[0035] Obtain a cooking instruction; control the hot air assembly to operate according to the cooking instruction;

[0036] In response to the hot air assembly starting to operate, control the steam generating assembly to operate simultaneously with the hot air assembly, or control the steam generating assembly to operate after the hot air assembly operates.

[0037] Additional aspects and advantages of the present invention will become apparent in the following description section or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of embodiments in conjunction with the following drawings, in which:

[0039] Figure 1 A schematic structural diagram of an air fryer according to an embodiment of the present invention is shown;

[0040] Figure 2 A schematic structural diagram of an air fryer according to an embodiment of the present invention is shown;

[0041] Figure 3 A schematic structural diagram of an air fryer according to an embodiment of the present invention is shown;

[0042] Figure 4 A schematic structural diagram of an air fryer according to an embodiment of the present invention is shown;

[0043] Figure 5 is Figure 4 A partial enlarged view of the air fryer in the A area in the shown embodiment;

[0044] Figure 6 A schematic structural diagram of an air fryer according to an embodiment of the present invention is shown;

[0045] Figure 7 is Figure 6 A partial enlarged view of the air fryer in the B area in the shown embodiment;

[0046] Figure 8 A schematic structural diagram of an air fryer according to an embodiment of the present invention is shown;

[0047] Figure 9 is Figure 8 A partial enlarged view of the air fryer in the C area in the shown embodiment;

[0048] Figure 10 A schematic structural diagram of an air fryer according to an embodiment of the present invention is shown;

[0049] Figure 11 is Figure 10 A partial enlarged view of the air fryer in the D area in the shown embodiment;

[0050] Figure 12 A schematic structural diagram of a switch assembly according to an embodiment of the present invention is shown;

[0051] Figure 13Shows a schematic structural diagram of a switch assembly according to an embodiment of the present invention;

[0052] Figure 14 Shows a schematic structural diagram of a switch assembly according to an embodiment of the present invention;

[0053] Figure 15 Shows a schematic structural diagram of a switch assembly according to an embodiment of the present invention;

[0054] Figure 16 Shows a schematic structural diagram of a trigger assembly according to an embodiment of the present invention;

[0055] Figure 17 Shows a schematic structural diagram of an air fryer according to an embodiment of the present invention;

[0056] Figure 18 Shows a schematic structural diagram of an air fryer according to an embodiment of the present invention;

[0057] Figure 19 Shows a schematic structural diagram of an air fryer according to an embodiment of the present invention;

[0058] Figure 20 Is Figure 19 A cross-sectional view of the air fryer in the E-E direction in the shown embodiment;

[0059] Figure 21 Is Figure 19 A cross-sectional view of the air fryer in the F-F direction in the shown embodiment;

[0060] Figure 22 Shows a schematic structural diagram of an air fryer according to an embodiment of the present invention;

[0061] Figure 23 Shows a schematic structural diagram of an air fryer according to an embodiment of the present invention;

[0062] Figure 24 Shows a system block diagram of an air fryer according to an embodiment of the present invention;

[0063] Figure 25 Shows a schematic structural diagram of an air fryer according to an embodiment of the present invention;

[0064] Figure 26 Shows a schematic structural diagram of a cooking device according to an embodiment of the present invention;

[0065] Figure 27 Shows a schematic structural diagram of a cooking device according to an embodiment of the present invention;

[0066] Figure 28Shows a schematic structural diagram of a cooking device according to an embodiment of the present invention;

[0067] Figure 29 Shows a schematic structural diagram of a cooking device according to an embodiment of the present invention;

[0068] Figure 30 Shows a system block diagram of a cooking device according to an embodiment of the present invention;

[0069] Figure 31 Shows a system block diagram of a cooking device according to an embodiment of the present invention;

[0070] Figure 32 Shows a flowchart of a control method for a cooking device according to an embodiment of the present invention;

[0071] Figure 33 Shows a structural block diagram of a control device for a cooking device according to an embodiment of the present invention;

[0072] Figure 34 Shows a structural block diagram of a control device for a cooking device according to an embodiment of the present invention;

[0073] Figure 35 Shows a flowchart of a control method for a cooking device according to an embodiment of the present invention;

[0074] Figure 36 Shows a flowchart of a control method for a cooking device according to an embodiment of the present invention.

[0075] Wherein, Figures 1 to 36 The corresponding relationship between the reference numerals in and the component names is:

[0076] 100 Air fryer, 110 body, 1102 cooking cavity, 1104 opening, 1106 cover body, 112 accommodating part, 120 evaporation container, 1202 water inlet, 1204 steam outlet, 1430 first conduit, 124 second conduit, 126 flow spoiler, 130 heating element, 140 switch assembly, 142 valve body, 1421 inlet, 1422 valve seat, 1423 relief hole, 1424 valve cover, 1425 sealing groove, 1426 valve plate, 1427 sealing rib, 1428 flow channel, 144 valve core, 1442 cylinder, 1444 cover plate, 146 elastic part, 150 trigger assembly, 152 driving part, 1522 inner ring, 1524 shape memory alloy ring, 154 pushing part, 160 heat conducting part, 170 liquid storage assembly, 1702 liquid storage cavity, 172 water tank, 174 sealing valve, 176 drain port, 180 hot air assembly, 182 motor, 184 fan blade, 186 heating part, 190 power supply module, 191 first path, 192 second path, 193 first switch part, 194 second switch part, 195 fuse, 196 timer, 197 indicator light, 198 first temperature controller, 210 pot body, 212 hinge part, 214 water inlet pipe, 216 exhaust pipe. Detailed implementation manners

[0077] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0078] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0079] The following refers to Figures 1 to 36 Describe an air fryer and a control method of the air fryer according to some embodiments of the present invention.

[0080] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 17 And Figure 18As shown in the figure, an embodiment of the present invention provides an air fryer 100, which includes: a main body 110 including a cooking cavity 1102; an evaporation container 120 including a water inlet 1202, a steam generation cavity, and a steam outlet 1204, the steam outlet 1204 communicating with the cooking cavity 1102; a heating element 130 for heating the evaporation container 120; a switch assembly 140 connected to the water inlet 1202, the switch assembly 140 including an open state and a closed state, in the open state, the switch assembly 140 opens the water inlet 1202, and in the closed state, the switch assembly 140 closes the water inlet 1202; a trigger assembly 150, the heating element 130 is also used to heat the trigger assembly 150, and the trigger assembly 150 can perform a trigger action according to the temperature of the evaporation container 120 and / or the temperature of the heating element 130, and the trigger action is used to switch the switch assembly 140 to the open state.

[0081] This application defines an air fryer 100, which can heat and humidify food through high-temperature steam.

[0082] Specifically, the air fryer 100 includes a main body 110, an evaporation container 120, and a heating element 130. The main body 110 is the main frame structure of the air fryer 100, which is used to position and support other working structures on the air fryer 100. A cooking cavity 1102 is formed inside the main body 110, and food is placed in the cooking cavity 1102. A steam generation cavity is formed inside the evaporation container 120, and a water inlet 1202 and a steam outlet 1204 communicating with the steam generation cavity are provided on the evaporation container 120. The heating element 130 is connected to the evaporation container 120, and the activated heating element 130 can transfer the heat generated by itself to the evaporation container 120 to increase the temperature of the evaporation container 120. During the steam preparation process, the liquid enters the steam generation cavity through the water inlet 1202, and the high-temperature evaporation container 120 heated by the heating element 130 heats the liquid into high-temperature steam, and finally guides the high-temperature steam into the cooking cavity 1102 through the steam outlet 1204.

[0083] On this basis, the air fryer 100 further includes a switch assembly 140 and a trigger assembly 150. The switch assembly 140 is connected to the water inlet 1202 of the evaporation container 120. The switch assembly 140 can control the opening and closing of the water inlet 1202 by switching its own state. When the water inlet 1202 is open, the liquid can flow into the evaporation container 120 to start steam preparation. When the water inlet 1202 is closed, the liquid is blocked by the switch assembly 140 and cannot flow into the evaporation container 120.

[0084] The trigger component 150 is connected to at least one of the evaporation container 120 and the heating element 130. After the heating element 130 is turned on, heat can also be transferred to the trigger component 150, enabling the trigger component 150 to sense the heating temperature of the steam generation chamber, or enabling at least a part of the trigger component 150 to reach a temperature close to that of the evaporation container 120 and the heating element 130. Subsequently, the trigger component 150 can perform a trigger action according to the temperatures of the evaporation container 120 and the heating element 130. This trigger action acts on the switch component 140, specifically, it can switch the switch component 140 from the closed state to the open state by contacting the switch component 140, thereby opening the water inlet 1202 of the evaporation container 120.

[0085] It can be seen that through the trigger component 150 and the switch component 140, the linkage between the heating element 130 and the switch is realized, so that after the heating element 130 is turned on, the switch component 140 can automatically open the water inlet 1202 of the evaporation container 120 when the temperatures of the evaporation container 120 and the heating element 130 reach the standard, thereby realizing the automatic water supply of the evaporation container 120. On the one hand, it can keep the water inlet 1202 in the closed state when the temperature of the evaporation container 120 does not reach the steam preparation temperature, avoiding the liquid that has not been heated to the steam state from directly pouring into the cooking chamber 1102. On the other hand, it can timely open the water inlet 1202 when the temperature of the evaporation container 120 reaches the standard steam preparation temperature, avoiding dry burning and damage of the evaporation container 120. Thus, the problems of dry burning and water soaking in the related art are solved. At the same time, the linkage between the heating element 130 and the switch realized by the trigger component 150 can reduce the electrical control complexity of the air fryer 100, which is beneficial to reducing the cost of the air fryer 100. Furthermore, the technical effects of optimizing the structure of the air fryer 100, improving the safety and reliability of the air fryer 100, and reducing the production cost of the air fryer 100 are achieved.

[0086] As Figure 5 、 Figure 7 、 Figure 9 and Figure 11 shown, in the above embodiment, the switch component 140 includes: a valve body 142, connected to the evaporation container 120, including a flow channel 1428 communicating with the water inlet 1202; a valve core 144, disposed in the valve body 142. The valve core 144 includes a first position and a second position. When the valve core 144 is in the first position, the valve core 144 blocks the flow channel 1428. When the valve core 144 is in the second position, the flow channel 1428 is open; wherein, the trigger action is used to drive the valve core 144 to move to the second position.

[0087] In this embodiment, the switch assembly 140 includes a valve body 142 and a valve core 144. An inlet 1421 is provided on the valve body 142, and the inlet 1421 communicates with the water inlet 1202. The liquid needs to pass through the inlet 1421 first and then flow into the water inlet 1202. The valve core 144 is movably installed on the valve body 142, and the valve core 144 has a first position and a second position on the valve body 142. When the valve core 144 is in the first position, the valve core 144 blocks the inlet 1421 on the valve body 142 to block the liquid outside the valve body 142. Correspondingly, when the valve body 142 is in the second position, the valve core 144 opens the inlet 1421, and the liquid can flow into the water inlet 1202 through the inlet 1421, that is, supply water to the steam generation chamber.

[0088] Among them, the valve core 144 and the trigger assembly 150 are linked. The trigger assembly 150 can drive the valve core 144 to move to the second position through a triggering action. After the heating element 130 is turned on, the trigger assembly 150 can be heated by contacting the heating element 130 and / or the evaporation container 120. The heated trigger assembly 150 performs a triggering action, and this triggering action can push the valve core 144 to the second position, so that the inlet 1421 is automatically opened after the heating element 130 is turned on, thereby realizing automatic water supply for the evaporation container 120 and avoiding the dry burning problem of the evaporation container 120. Furthermore, the technical effects of improving the automation degree of the air fryer 100, and improving the safety and reliability of the air fryer 100 are achieved.

[0089] As Figure 5 、 Figure 7 、 Figure 9 and Figure 11 shown, in any of the above embodiments, the valve body 142 includes: a valve seat 1422, which is connected to the evaporation container 120; a valve cover 1424, which is connected to the valve seat 1422. The valve cover 1424 includes an inlet 1421, and the inlet 1421 communicates with the water inlet 1202; a valve plate 1426, which is arranged between the valve seat 1422 and the valve cover 1424 and is connected to the valve core 144. The valve cover 1424 and the valve plate 1426 enclose a flow channel 1428.

[0090] In this embodiment, the valve body 142 includes a valve seat 1422, a valve cover 1424 and a valve plate 1426. The valve plate 1426 is arranged on the valve seat 1422, and the valve cover 1424 connected to the valve seat 1422 presses the valve plate 1426 onto the valve seat 1422 to prevent the valve plate 1426 from loosening and misaligning between the valve cover 1424 and the valve seat 1422. Among them, the inlet 1421 is opened on the valve cover 1424, and a flow channel 1428 is enclosed between the valve plate 1426 and the valve cover 1424. One end of the flow channel 1428 communicates with the inlet 1421 on the valve cover 1424, and the other end of the valve cover 1424 communicates with the water inlet 1202 of the evaporation container 120.

[0091] On this basis, a valve core 144 is provided on the valve disc 1426, and an avoidance hole 1423 is provided on the valve seat 1422. The valve core 144 is exposed in the avoidance hole 1423. Relative to the valve seat 1422, the valve core 144 has a first position and a second position. When the valve core 144 is in the first position, the valve core 144 blocks the inlet 1421 on the valve cover 1424, and the liquid in the liquid storage cavity 1702 is blocked by the valve core 144 and cannot enter the flow channel 1428. When the valve core 144 is in the second position, the valve core 144 opens the inlet 1421 on the valve cover 1424, and the liquid can enter the flow channel 1428 through the inlet 1421 and finally flow into the evaporation container 120.

[0092] After the heating element 130 is turned on, the trigger assembly 150 performs a trigger action, which can push the valve core 144 to the second position, so that the inlet 1421 is automatically opened after the heating element 130 is turned on, thereby realizing automatic water supply for the evaporation container 120 and avoiding the dry burning problem of the evaporation container 120. Furthermore, the technical effects of improving the automation degree of the air fryer 100 and enhancing the safety and reliability of the air fryer 100 are achieved.

[0093] At the same time, compared with the embodiment of independently controlling the switch assembly 140 according to the electric control instruction, the reliability of the heating element 130 and the switch assembly 140 linked under the action of the trigger assembly 150 is relatively strong, not affected by circuit faults, and can further improve the safety and reliability of the evaporation container 120.

[0094] Specifically, Figure 4 、 Figure 5 、 Figure 6 and Figure 7 the valve core 144 in

[0095] Figure 8 、 Figure 9 、 Figure 10 and Figure 11 is in the first position, the trigger assembly 150 is separated from the valve core 144, the switch assembly 140 is in the closed state, the inlet 1421 is blocked by the valve core 144, and the liquid is blocked outside the inlet 1421. The specific arrow shows the liquid flow direction.

[0096] Such as Figure 5 、 Figure 7 、 Figure 9 、 Figure 11 and Figure 15As shown, in any of the above embodiments, the valve body 142 further includes: an elastic portion 146 connected to the valve plate 1426 and the valve core 144, and used to drive the valve core 144 to return to the first position.

[0097] In this embodiment, the switch assembly 140 includes an elastic portion 146, and the valve core 144 is connected to the valve plate 1426 through the elastic portion 146. When the trigger assembly 150 pushes the valve core 144 to move through the triggering action, the elastic portion 146 is deformed and accumulates elastic potential energy. After the steam preparation is completed, the temperature of the evaporation container 120 and the heating element 130 drops, and the trigger assembly 150 no longer applies the triggering action to the valve core 144. The elastic portion 146 releases the elastic potential energy to reset the valve core 144 to the first position, thereby realizing the automatic reset of the valve core 144 to prevent liquid from pouring into the cooking chamber 1102.

[0098] It can be seen that by providing the elastic portion 146 and the trigger assembly 150, the valve core 144 can be automatically switched on and off along with the start and stop of the steam preparation process, thereby realizing fully automatic water supply and eliminating the need for a complex electric control mechanism and a reset transmission mechanism. This achieves the technical effect of optimizing the structure of the air fryer 100, improving the safety and reliability of the air fryer 100, and reducing the complexity of the structure of the air fryer 100.

[0099] In any of the above embodiments, the valve body 142 further includes: an elastic element, two ends of which are respectively in contact with the valve cover 1424 and the valve core 144, and are used to drive the valve core 144 to return to the first position.

[0100] like Figure 12 , Figure 13 and Figure 14 As shown, in any of the above embodiments, the valve seat 1422 includes an avoidance hole 1423, and the avoidance hole 1423 is arranged opposite to the inlet 1421. The valve core 144 includes: a column 1442, which is penetrated by the inlet 1421 and the avoidance hole 1423 and is connected to the valve plate 1426, and the trigger component 150 that performs the triggering action abuts against the first end of the column 1442; a cover plate 1444, which is connected to the second end of the column 1442 and is located on the side of the inlet 1421 away from the valve plate 1426.

[0101] In this embodiment, the avoidance hole 1423 on the valve seat 1422 is arranged opposite to the inlet 1421 on the valve cover 1424, and the valve core 144 includes a column 1442 and a cover plate 1444. The column 1442 is penetrated through the inlet 1421 and the avoidance hole 1423. The first end of the column 1442 passes through the outside of the inlet 1421. The cover plate 1444 is connected to the first end of the column 1442, and the second end of the column 1442 passes through the outside of the avoidance port, so that the trigger assembly 150 can push the column 1442 to the second position by contacting the second end of the column 1442.

[0102] Specifically, when the valve core 144 is in the first position, the cover plate 1444 covers the outside of the inlet 1421, and the pressure exerted by the liquid on the cover plate 1444 presses the cover plate 1444 tightly against the inlet 1421, thereby achieving sealing by means of the liquid pressure, and further achieving the technical effect of improving the sealing reliability of the valve core 144. After the heating element 130 is turned on, the triggering assembly 150 pushes the cover plate 1444 to be lifted by the pushing cylinder 1442, and the liquid can then enter the flow channel 1428 through the gap between the cylinder 1442 and the inlet 1421.

[0103] As Figure 12 , Figure 13 and Figure 14 shown, in any of the above embodiments, the valve body 142 further includes: a sealing groove 1425, provided in one of the valve cover 1424 and the valve plate 1426 and surrounding the flow channel 1428; a sealing rib 1427, provided in the other of the valve cover 1424 and the valve plate 1426 and located within the sealing groove 1425.

[0104] In this embodiment, a groove is provided on the side of the valve cover 1424 facing the valve seat 1422, and the groove communicates with the inlet 1421. After the connection between the valve cover 1424 and the valve seat 1422 is completed, the valve plate 1426 covers the groove. At the same time, an outlet is also provided on the side of the valve plate 1426 facing the valve seat 1422, the outlet penetrates through the valve seat 1422, and the outlet communicates with the water inlet 1202 on the evaporation container 120.

[0105] By providing this groove, it is beneficial to expand the flow area of the flow channel 1428, thereby increasing the water supply flow rate and ensuring that the steam output rate of the air fryer 100 can meet the cooking requirements.

[0106] On this basis, a sealing groove 1425 is further provided on the side of the valve cover 1424 facing the valve seat 1422, and the sealing groove 1425 surrounds the periphery of the groove. The valve body 142 further includes a sealing rib 1427, the sealing rib 1427 is provided on the side of the valve plate 1426 facing the valve cover 1424, and the sealing rib 1427 is annular, and the shape of the sealing rib 1427 is adapted to the shape of the sealing groove 1425.

[0107] During the assembly process, the sealing rib 1427 is inserted into the sealing groove 1425 to prevent the liquid in the flow channel 1428 from diffusing to the periphery of the sealing rib 1427 and avoid liquid leakage from the gap between the valve seat 1422 and the valve cover 1424. At the same time, the sealing groove 1425 and the sealing rib 1427 can also play a positioning role, which can ensure that the elastic valve body 142 and the valve core 144 can be accurately installed in the predetermined position.

[0108] As Figure 5 , Figure 9 and Figure 16As shown, in any of the above embodiments, the trigger assembly 150 includes: a driving member 152 connected to the evaporation container 120 and / or the heating element 130, and at least a part of the driving member 152 is formed by shape memory metal; the driving member 152 is capable of pushing the valve core 144.

[0109] The trigger assembly 150 includes: a pushing member 154 connected to the driving member 152, and the deformed driving member 152 pushes the valve core 144 through the pushing member 154.

[0110] In this embodiment, the trigger assembly 150 includes a driving member 152 and a pushing member 154. The driving member 152 is connected to the evaporation container 120 and / or the heating element 130, and at least a part of the driving member 152 is formed by shape memory metal, and the shape memory metal has the property of changing its shape with temperature. After the heating element 130 is turned on, the heat is transferred from the evaporation container 120 and / or the heating element 130 to the driving member 152, and the shape of the driving member 152 changes during the heating process, thereby driving the pushing member 154 on the driving member 152 to perform a triggering action.

[0111] Specifically, when the temperature of the driving member 152 is less than or equal to the first temperature threshold, the driving member 152 is in the first shape, and the pushing member 154 is separated from the second end of the valve core 144. At this time, the valve core 144 is held in the first position by the elastic part 146, that is, the switch assembly 140 is in the closed state. When the temperature of the driving member 152 rises to the second temperature threshold, the driving member 152 changes to the second shape. During this deformation process, the pushing member 154 contacts and pushes the second end of the valve core 144, so that the cover plate 1444 can be lifted, thereby opening the inlet 1421 on the valve cover 1424.

[0112] It can be seen that the driving member 152 in this embodiment can automatically adjust its shape according to the temperature of the evaporation container 120 and / or the heating element 130, so as to cooperate with the pushing member 154, the valve core 144 and the elastic part 146 to realize the automatic opening and closing of the inlet 1421, ensuring that the inlet 1421 can be automatically opened after the heating element 130 starts working and automatically closed after the heating element 130 stops working, and ensuring that the liquid supply can match the start and stop of the steam preparation process. At the same time, compared with the embodiment in which the valve core 144 is driven by an electric control mechanism, using shape memory metal can reduce the structural complexity of the air fryer 100 and reduce the cost of the air fryer 100.

[0113] Such as Figure 5 、 Figure 9 and Figure 16As shown, in any of the above embodiments, the driving member 152 includes: an inner ring 1522, a memory metal ring 1524 connected to the evaporation container 120 and / or the heating element 130, connected to the inner ring 1522 and surrounding the inner ring 1522, and the heated memory metal ring 1524 is bent toward the direction of the valve core 144.

[0114] In this embodiment, the driving member 152 includes an inner ring 1522 and a memory metal ring 1524. The inner ring 1522 is made of non-memory metal material, that is, the shape of the inner ring 1522 does not change with the temperature. The inner ring 1522 is connected to the evaporation container 120 and / or the heating element 130, and the inner ring 1522 can be fixed to the evaporation container 120 and / or the heating element 130 by screws. The inner ring 1522 made of non-metallic material can ensure the positioning stability of the driving member 152 on the evaporation container 120 and / or the heating element 130, and prevent the driving member 152 from loosening or even falling off after frequent changes in shape.

[0115] The memory metal ring 1524 is sleeved around the inner ring 1522, and the pusher 154 is connected to the memory metal ring 1524. After the heating element 130 is turned on, the heated memory metal ring 1524 tilts in the direction of the valve core 144, thereby driving the pusher 154 to swing in the direction of the valve core 144, and finally the valve core 144 is pushed to the second position by the pusher 154 to prevent the evaporation container 120 from drying out. Correspondingly, after the heating element 130 is turned off, the temperature of the memory metal ring 1524 drops, the memory metal ring 1524 returns to a flat state, the pusher 154 connected thereto moves away from the valve core 144, and the valve core 144 automatically returns to the first position under the action of the elastic part 146 and the liquid pressure to prevent the liquid from directly pouring into the cooking chamber 1102.

[0116] like Figure 1 , Figure 2 and Figure 3 As shown, in any of the above embodiments, the air fryer 100 further includes: a heat conducting member 160 connected to the evaporation container 120 , the heating member 130 and the trigger assembly 150 .

[0117] In this embodiment, the air fryer 100 further includes a heat conductive member 160, on which the evaporation container 120 and the heating element 130 are both disposed, and the heat conductive member 160 provides positioning and support for the evaporation container 120 and the heating element 130. On this basis, the driving part on the trigger assembly 150 is also fixed on the heat conductive member 160. After the heating element 130 is turned on, the heat can be quickly transferred to the driving member 152 via the heat conductive member 160, so that the driving member 152 performs the triggering action in time according to the temperature of the heating element 130, thereby reducing the possibility of dry burning of the evaporation container 120, thereby achieving the technical effect of improving the safety and reliability of the air fryer 100.

[0118] As Figure 1 、 Figure 2 and Figure 3 shown in any of the above embodiments, the evaporation container 120 is tubular, and the air fryer 100 further includes: a first conduit 1430, located at the switch assembly 140 and communicating with the water inlet 1202; a second conduit 124, connecting to the steam outlet 1204.

[0119] In this embodiment, the evaporation container 120 is tubular, a steam generation chamber is formed inside the tubular evaporation container 120, and the two ends of the tubular evaporation container 120 form a water inlet 1202 and a steam outlet 1204. Specifically, the liquid enters the steam generation chamber from the water inlet 1202, gradually heats up and vaporizes during the flow process, and finally generates high-temperature steam and is discharged from the evaporation container 120 through the steam outlet 1204.

[0120] On this basis, the air fryer 100 further includes a first conduit 1430 and a second conduit 124. The first end of the first conduit 1430 is connected to the outlet on the switch assembly 140, and the second end of the first conduit 1430 is connected to the water inlet 1202. When the switch assembly 140 is switched to the open state, the liquid can flow into the steam generation chamber through the first conduit 1430. The first end of the second conduit 124 is connected to the steam outlet 1204, and the second end of the second conduit 124 is communicated with the cooking chamber 1102 to introduce the prepared high-temperature steam into the cooking chamber 1102.

[0121] By providing the first conduit 1430 and the second conduit 124, the layout freedom of the switch assembly 140, the evaporation container 120 and the cooking chamber 1102 can be improved, providing convenient conditions for reasonably arranging the internal structure of the air fryer 100.

[0122] As Figure 1 、 Figure 2 and Figure 3 shown in any of the above embodiments, the heating element 130 is an electric heating tube, and the electric heating tube is arranged side by side with the evaporation container 120.

[0123] In this embodiment, an electric heating tube is selected as the heating element 130, and the tubular evaporation container 120 and the electric heating tube are arranged side by side. For example, when a straight tube is selected as the evaporation container 120, the electric heating tube also extends linearly, and the electric heating tube is arranged parallel to the circumference of the evaporation container 120. When an arc-shaped tube is selected as the evaporation container 120, the electric heating tube also extends along an arc, and the electric heating tube is arranged on the inner ring side or the outer ring side of the arc-shaped evaporation container 120.

[0124] The long and narrow evaporation container 120 and the electric heating tube can effectively utilize the long and narrow space inside the air fryer 100 to arrange the evaporation container 120 and the electric heating tube without excessively changing the original structural layout and original dimensions of the air fryer 100. On the other hand, the evaporation container 120 and the electric heating tube arranged side by side have a high degree of coincidence in the liquid flow direction, and can effectively utilize the heat radiated by the evaporation container 120, thereby improving the heating efficiency of the electric heating tube for the evaporation container 120. Furthermore, the technical effects of optimizing the structural layout of the air fryer 100, improving the steam output efficiency, reducing the layout difficulty of the air fryer 100, and providing convenient conditions for the miniaturization design of the air fryer 100 are achieved.

[0125] In any of the above embodiments, the cross-sectional area of at least part of the first conduit 1430 ranges from: greater than or equal to 0.7 mm 2 , and less than or equal to 12.6 mm 2 .

[0126] In this embodiment, the cross-sectional area of at least part of the segments of the first conduit 1430 needs to be greater than or equal to 0.7 mm 2 , and less than or equal to 12.6 mm 2 . By limiting the cross-sectional area of at least part of the first conduit 1430 within the above-mentioned dimension range, the water in the evaporation container 120 can be completely evaporated by restricting the flow rate and velocity of the liquid in the first conduit 1430, avoiding the evaporation container 120 from ejecting unevaporated liquid.

[0127] On this basis, by fully evaporating the liquid, it is possible to avoid excessive accumulation of scale in local areas of the evaporation container 120, thereby reducing the possibility of blockage problems in the small-sized evaporation container 120, and achieving the technical effect of extending the service life of the steam generator.

[0128] In any of the above embodiments, the evaporation container 120 is a U-shaped tube, and the evaporation container 120 is arranged side by side with the heating element 130.

[0129] In this embodiment, the evaporation container 120 is a U-shaped tube, and the heating element 130 is U-shaped corresponding to the U-shaped tube. Selecting a U-shaped tube as the evaporation container 120 can reduce the size of the evaporation container 120 in the longitudinal direction without reducing the flow-through distance, thereby reasonably utilizing the local space inside the steam generator and providing convenient conditions for the miniaturization design of the steam generator. At the same time, the U-shaped tube and the U-shaped heating element 130 arranged side by side can concentrate the heat in a smaller area. On the one hand, it can improve the heating efficiency of the heating element 130 for the evaporation container 120, and on the other hand, it can improve the temperature measurement accuracy of the evaporation container 120.

[0130] In any of the above embodiments, the evaporation container 120 is an L-shaped tube, and the evaporation container 120 is arranged side by side with the heating element 130.

[0131] In this embodiment, the evaporation container 120 is an L-shaped tube, and the heating element 130 is in an L-shape corresponding to the L-shaped tube. When the internal space of the steam generator is not sufficient to arrange a long straight tube, the L-shaped tube can be selected as the evaporation container 120 to reduce the size occupied by the evaporation container 120 in the longitudinal direction, thereby rationally utilizing the internal space of the steam generator and providing convenient conditions for the miniaturized design of the steam generator.

[0132] In any of the above embodiments, the evaporation container 120 and the heating element 130 are wound around the periphery of the trigger assembly 150.

[0133] In this embodiment, the evaporation container 120 and the heating element 130 are wound around the periphery of the trigger assembly 150. On the one hand, this structure can improve the heating efficiency of the heating element 130 on the trigger assembly 150, make the temperature value of the trigger assembly 150 approach the temperature value of the evaporation container 120, and reduce the adverse effect of the temperature difference between the evaporation container 120 and the trigger assembly 150 on the triggering timing. At the same time, winding the evaporation container 120 and the heating element 130 around the periphery of the trigger assembly 150 can also improve the structural compactness of the steam generator and provide convenient conditions for the miniaturized design of the steam generator.

[0134] As Figure 2 and Figure 3 shown, in any of the above embodiments, the air fryer 100 further includes: a flow disturbing member 126, disposed in the evaporation container 120, for disturbing the liquid in the evaporation container 120.

[0135] In this embodiment, a flow disturbing member 126 is disposed in the evaporation container 120, and the flow disturbing member 126 can disturb the flowing liquid in the evaporation container 120 to improve the vaporization efficiency of the liquid in the evaporation container 120, thereby achieving the technical effect of improving the high-temperature steam preparation rate.

[0136] Specifically, the flow disturbing member 126 is a spiral spring, and the spiral spring is clamped inside the evaporation container 120 and is consistent with the extending direction of the evaporation container 120.

[0137] On the one hand, the spiral spring can play a role in disturbing the flowing liquid, so that the liquid is quickly heated to the steam state. On the other hand, the spiral spring has a small flow resistance to the liquid and steam, and can weaken the adverse effect of the flow disturbing member 126 on the steam flow rate on the basis of accelerating the steam preparation efficiency.

[0138] As Figure 1 、 Figure 19 、 Figure 20 and Figure 21As shown, in any of the above embodiments, the air fryer 100 further includes: a liquid storage assembly 170, connected to the switch assembly 140, and including a liquid storage chamber 1702 communicating with the water inlet 1202.

[0139] In this embodiment, the air fryer 100 further includes a liquid storage assembly 170. The liquid storage assembly 170 is disposed on the main body 110, and the liquid storage assembly 170 is connected to the inlet 1421 of the switch assembly 140. Wherein, a liquid storage chamber 1702 is formed in the liquid storage assembly 170, and liquid can be stored in the liquid storage chamber 1702. When the switch assembly 140 is in the open state, the liquid in the liquid storage chamber 1702 can flow into the evaporation container 120 through the switch assembly 140.

[0140] By providing the liquid storage assembly 170, the air fryer 100 has the ability to self-store a certain amount of water for steam preparation, so that the air fryer 100 can work independently without an external water source, thereby improving the practicality of the air fryer 100.

[0141] As Figure 19 、 Figure 20 and Figure 21 As shown, in any of the above embodiments, the liquid storage assembly 170 includes: a water tank 172, detachably connected to the switch assembly 140, including a liquid storage chamber 1702 and a drain port 176; a sealing valve 174, disposed at the drain port 176; when the water tank 172 is connected to the switch assembly 140, the sealing valve 174 abuts against the switch assembly 140, and the sealing valve 174 opens the drain port 176; when the sealing valve 174 is separated from the valve cover 1424, the sealing valve 174 closes the drain port 176.

[0142] In this embodiment, the liquid storage assembly 170 includes a water tank 172 and a sealing valve 174. A liquid storage chamber 1702 is formed in the water tank 172, a drain port 176 is provided at the bottom of the water tank 172, and the sealing valve 174 is installed in the drain port 176. An installation position is provided on the valve cover 1424. When the water tank 172 is assembled to the installation position, the valve cover 1424 pushes up the sealing valve 174 to automatically open the drain port 176, and the liquid in the water tank 172 can flow to the inlet 1421. On the contrary, after the water tank 172 is removed from the valve cover 1424, the sealing valve 174 automatically resets to the closed position by a spring to block the drain port 176, thereby preventing the liquid in the water tank 172 from leaking.

[0143] As Figure 17 As shown, in any of the above embodiments, the air fryer 100 further includes: a hot air assembly 180, disposed on the main body 110, for blowing high-temperature air into the cooking chamber 1102.

[0144] In this embodiment, the air fryer 100 further includes a hot air assembly 180. The hot air assembly 180 is disposed on the main body 110 and is oppositely arranged with respect to the cooking cavity 1102. When the hot air assembly 180 is turned on, it can blow high-temperature air flow into the cooking cavity 1102 to quickly heat the surface of the food through the high-temperature air flow, thereby achieving the technical effects of broadening the functions of the air fryer 100 and improving the quality of the cooked food.

[0145] As Figure 25 shown, in any of the above embodiments, the air fryer 100 further includes: a first temperature controller 198 disposed on the main body 110 for detecting the real-time temperature of the cooking cavity 1102; wherein, in response to the real-time temperature reaching the first temperature value, the steam generating assembly operates.

[0146] In this technical solution, the air fryer 100 includes a main body 110, a steam generating assembly, a hot air assembly 180, and a first temperature controller 198. The main body 110 is the main frame structure of the air fryer 100, and a cooking cavity 1102 is formed inside the main body 110, and the food is processed into finished food in the cooking cavity 1102.

[0147] The hot air assembly 180 is installed on the main body 110 and is oppositely arranged with respect to the cooking cavity 1102. After the hot air assembly 180 is controlled to be turned on, the hot air assembly 180 can deliver high-temperature air flow into the cooking cavity 1102 to quickly heat the surface of the food through the high-temperature air flow.

[0148] The steam generating assembly is disposed on the main body 110. After the steam generating assembly is controlled to be turned on, the steam generating assembly can deliver high-temperature steam into the cooking cavity 1102. On the one hand, the high-temperature steam can heat the food, and on the other hand, it can hydrate the food.

[0149] The first temperature controller 198 is disposed on the main body 110. The first temperature controller 198 is used to detect the real-time temperature in the cooking cavity 1102 and control the start and stop of the steam generating assembly according to the real-time temperature.

[0150] Specifically, the first temperature controller 198 can be connected to the inner wall of the cooking cavity 1102 or penetrated through the inner wall of the cooking cavity 1102.

[0151] Specifically, a combination of a temperature sensor and a relay can be selected as the first temperature controller 198, or a normally open mechanical temperature controller can also be selected as the first temperature controller 198.

[0152] On this basis, after controlling the hot air component 180 to blow high-temperature air flow into the cooking cavity 1102 according to the cooking instruction, the temperature in the cooking cavity 1102 gradually rises. During this process, the real-time temperature in the cooking cavity 1102 is monitored. The steam generating component can be automatically turned on in response to the state that the real-time temperature reaches the first temperature value, so that the steam generating component can intervene according to the actual temperature in the cooking, ensuring that the high-temperature steam generated by the steam generating component can act on the food at a reasonable time point to replenish water for the food in time.

[0153] It can be seen that the steam generating component can be automatically turned on according to the real-time temperature of the cooking cavity 1102. On the one hand, it can avoid the premature intervention of the steam generating component in the cooking process, preventing the food skin from collapsing due to contact with high-temperature steam before being baked and shaped by the high-temperature air flow, so as to ensure the taste of the food. On the other hand, it can avoid the late intervention of the steam generating component in the cooking process, preventing the food skin from cracking due to long-term baking by the high-temperature air flow and ensuring the appearance of the food.

[0154] As Figure 17 shown, in any of the above embodiments, the hot air component 180 includes: a motor 182 disposed on the main body 110; a fan blade 184 connected to the motor 182; and a heating element 186 disposed on the main body 110 for heating the fan blade 184.

[0155] In this embodiment, the hot air component 180 includes a motor 182, a fan blade 184 and a heating element 186. The motor 182 is fixed on the main body 110, and the fan blade 184 is connected to the rotating shaft on the motor 182. After the motor 182 is turned on, the fan blade 184 rotates with the rotating shaft to form an air flow flowing into the cooking cavity 1102. The heating element 186 is arranged on the periphery of the fan blade 184, and the turned-on heating element 186 can heat the fan blade 184 to blow out high-temperature air flow through the high-temperature fan blade 184.

[0156] As Figure 25 shown, in any of the above embodiments, the air fryer 100 further includes: a power supply module 190 for supplying power to the motor 182 and the heating element 130; a first path 191 with the motor 182 disposed thereon; a second path 192 with the heating element 130 disposed thereon; a first switch element 193, both the first path 191 and the second path 192 are electrically connected to the power supply module 190 through the first switch element 193; and a second switch element 194 disposed on the second path 192 for controlling the on / off of the second path 192.

[0157] In this embodiment, the air fryer 100 further includes a power supply module 190, and the power supply module 190 is used to supply power to the motor 182 and the heating element 130.

[0158] On this basis, the air fryer 100 further includes a first passage 191, a second passage 192, a first switch member 193, and a second switch member 194. Among them, the motor 182 is disposed on the first passage 191, the heating element 130 is disposed on the second passage 192, and the first passage 191 and the second passage 192 are connected in parallel and then electrically connected to the power supply module 190 through the first switch member 193, that is, the first switch member 193 can simultaneously control the start and stop of the motor 182 and the heating element 130. The second switch member 194 is disposed on the second passage 192, and the second switch member 194 can independently control the start and stop of the heating element 130.

[0159] By providing the first passage 191, the second passage 192, the first switch member 193, and the second switch member 194, the heating element 130 can only be turned on after the motor 182 starts to work, so as to ensure that the high-temperature steam discharged from the steam outlet 1204 can be timely carried away by the airflow generated by the blower after entering the cooking cavity 1102, avoiding the diffusion of the high-temperature steam to the area where the motor 182 is located, ensuring that the steam will not affect the operation of the motor 182, and further achieving the technical effect of improving the safety and reliability of the air fryer 100.

[0160] Specifically, the air fryer 100 further includes a timer 196 and a fuse 195 connected in series with the first switch member 193. It further includes a third passage, the third passage is connected in parallel with the first passage 191 and the second passage 192, the heating element 186 in the hot air assembly 180 is disposed on the third passage, and a first temperature controller 198 is further disposed on the third passage. The first temperature controller 198 is connected to the heat conducting member 160, and the first temperature controller 198 can control the on-off of the third passage according to the temperature of the heat conducting member 160.

[0161] Specifically, the air fryer 100 further includes an indicator light 197 connected in parallel with the motor 182 to feedback the working state of the hot air assembly 180 through the indicator light 197.

[0162] As Figure 17 、 Figure 18 、 Figure 22 and Figure 23 shown, in any of the above embodiments, the main body 110 includes an opening 1104 communicating with the cooking cavity 1102, and the air fryer 100 further includes: a receiving portion 112, which is slidably disposed at the opening 1104.

[0163] In this embodiment, an opening 1104 communicating with the cooking cavity 1102 is further formed on the main body 110, and the receiving portion 112 is slidably disposed in the opening 1104 to facilitate the user to access food. During the cooking process, the user can pull out the receiving portion 112 and turn over or stir the food to ensure that all surfaces of the food can be heated by the hot air and high-temperature steam.

[0164] In any of the above embodiments, the air fryer 100 is: an air fryer 100, a rice cooker, or a steam cooking and baking integrated machine.

[0165] Figure 24 A system block diagram of the air fryer 100 is shown. During operation, the heated evaporation container 120 can transfer heat to the trigger assembly 150 and the switch assembly 140 through the heat conducting member 160. The trigger assembly 150 switches the switch assembly 140 to the on state through a triggering action. The water in the liquid storage assembly 170 can then enter the evaporation container 120 via the switch assembly 140 under the action of gravity, and is discharged into the cooking cavity 1102 after being heated to high-temperature steam by the evaporation container 120.

[0166] As Figure 26 and Figure 27 shown, in any of the above technical solutions, the main body 110 includes: a cover body 1106, and the liquid storage assembly 170 is provided on the cover body 1106; a pot body 210, including a cooking cavity 1102. The cover body 1106 is connected to the pot body 210 and covers the cooking cavity 1102. The switch assembly 140, the evaporation container 120, the heating element 130, and the trigger assembly 150 are provided on the pot body 210, and the steam outlet 1204 is communicated with the cooking cavity 1102.

[0167] In this technical solution, the main body 110 includes a cover body 1106 and a pot cover. The cover body 1106 includes a covering surface. The cover body 1106 installed on the air fryer 100 has an open state and a closed state. When the cover body 1106 is in the open state, the covering surface is separated from the opening 1104 of the cooking cavity 1102. When the cover body 1106 is in the closed state, the covering surface covers the opening 1104 of the cooking cavity 1102.

[0168] The evaporation container 120 is arranged on the cover body 1106. A steam generation cavity is formed in the evaporation container 120, and a water inlet 1202 and a steam outlet 1204 communicating with the steam generation cavity are provided on the evaporation container 120. The heating element 130 is connected to the evaporation container 120. The activated heating element 130 can transfer the heat generated by itself to the evaporation container 120 to increase the temperature of the evaporation container 120. During the steam preparation process, the liquid enters the steam generation cavity through the water inlet 1202. The high-temperature evaporation container 120 heated by the heating element 130 heats the liquid to high-temperature steam, and finally conducts the high-temperature steam into the cooking cavity 1102 through the steam outlet 1204.

[0169] The pot body 210 includes a base and an inner pot. An inwardly concave mounting groove is provided on the base, and the inner pot is embedded in the mounting groove. An opening 1104 is provided at the top of the inner pot, and a cooking cavity 1102 is enclosed in the inner pot. The lid body 1106 is connected to the pot body 210, and the lid body 1106 is movably arranged on the pot body 210 in an openable and closable manner. The closed lid body 1106 can block the opening 1104 at the top of the inner pot through the closing surface to create a sealed cooking space, and the food is heated by the high-temperature inner pot and high-temperature steam in the cooking cavity 1102. At the same time, the switch assembly 140, the evaporation container 120, the heating element 130, and the trigger assembly 150 are mounted on the pot body 210 through the housing. After the water in the liquid storage assembly 170 flows into the evaporation container 120 from top to bottom under the action of gravity, it is heated by the heating element 130 to high-temperature steam, and finally the high-temperature steam is introduced into the inner pot through the exhaust pipe 216.

[0170] As Figure 27 、 Figure 28 and Figure 29 shown, in any of the above technical solutions, the air fryer 100 further includes: a water inlet pipe 214, the water inlet pipe 214 connects the liquid storage assembly 170 and the switch assembly 140, and the air fryer 100 further includes: a hinge portion 212, provided on the pot body 210, and the lid body 1106 is hinged to the hinge portion 212; the water inlet pipe 214 is wound around the hinge portion 212.

[0171] In this technical solution, the upper cover mechanism further includes a water inlet pipe 214. The first end of the water inlet pipe 214 is connected to the water tank 172 seat in the liquid storage assembly 170 and is communicated with the drain port 176. The second end of the water inlet pipe 214 is connected to the switch assembly 140 and is communicated with the evaporation container 120 through the switch assembly 140.

[0172] On this basis, a hinge portion 212 is further provided on the pot body 210, and the lid body 1106 is hinged to the pot body 210 through the hinge portion 212, that is, the lid body 1106 can be opened or closed for the cooking cavity 1102 through a flipping action. Among them, the water inlet pipe 214 is wound around the hinge portion 212 from top to bottom and is connected to the switch assembly 140 on the pot body 210 after bypassing the hinge portion 212. During the flipping process of the lid body 1106, the water inlet pipe 214 on the hinge portion 212 is bent synchronously to reduce the possibility of interference of the water inlet pipe 214 during the flipping process of the lid body 1106, thereby achieving the technical effects of optimizing the structural layout of the air fryer 100 and improving the structural reliability of the air fryer 100.

[0173] As Figure 26 、 Figure 30 and Figure 31As shown, in any of the above technical solutions, the air fryer 100 further includes: an exhaust pipe 216, the first end of the exhaust pipe 216 is connected to the steam outlet 1204; the exhaust pipe 216 is wound around the hinge portion 212, the second end of the exhaust pipe 216 is located at the lid 1106 and faces the cooking cavity 1102, or the second end of the exhaust pipe 216 is located at the pot body 210 and communicates with the cooking cavity 1102.

[0174] In this technical solution, the air fryer 100 further includes an exhaust pipe 216, the first end of the exhaust pipe 216 is connected to the steam outlet 1204 on the evaporation container 120, and the second end of the exhaust pipe 216 communicates with the cooking cavity 1102 to introduce the prepared high-temperature steam into the cooking cavity 1102.

[0175] Specifically, the exhaust pipe 216 is wound around the hinge portion 212 from bottom to top, and the second end of the exhaust pipe 216 extends to the closing surface of the lid 1106 after bypassing the hinge portion 212, and the orientation of the second end of the exhaust pipe 216 is the same as the orientation of the closing surface, so that the high-temperature steam can be discharged into the cooking cavity 1102. During the flipping process of the lid 1106, the exhaust pipe 216 on the hinge portion 212 is bent synchronously to reduce the possibility of interference of the exhaust pipe 216 during the flipping process of the lid 1106, thereby achieving the technical effects of optimizing the structural layout of the air fryer 100 and improving the structural reliability of the air fryer 100.

[0176] As Figure 32 As shown, an embodiment of the present invention provides a control method for an air fryer. The air fryer includes a main body, a hot air component and a steam generating component. The main body includes a cooking cavity. The hot air component is used to blow high-temperature air flow into the cooking cavity, and the steam generating component is used to convey steam to the cooking cavity. The control method of the air fryer includes:

[0177] Step 102, obtaining a cooking instruction;

[0178] Step 104, controlling the hot air component to work according to the cooking instruction, or controlling the hot air component and the steam generating component to work.

[0179] This application defines a control method for an air fryer, where the air fryer includes a main body, a steam generating component and a hot air component. The main body is the main frame structure of the air fryer, and a cooking cavity is formed inside the main body. Food is processed into finished food in the cooking cavity. The hot air component is installed on the main body and is disposed opposite to the cooking cavity. After the hot air component is controlled to be turned on, the hot air component can convey high-temperature air flow into the cooking cavity to quickly heat the surface of the food through the high-temperature air flow. The steam generating component is disposed on the main body. After the steam generating component is controlled to be turned on, the steam generating component can convey high-temperature steam into the cooking cavity. The high-temperature steam can heat the food on the one hand and replenish water to the food on the other hand.

[0180] On this basis, the air fryer can generate corresponding cooking instructions according to the user's needs or instructions. After obtaining the cooking instructions, it controls the hot air component to work alone according to the cooking instructions, or controls the hot air component to start working according to the cooking instructions, and controls the steam generating component to start working after controlling the hot air component to turn on. That is, the air fryer can only control the hot air component to work alone, or control the steam generating component to work after the hot air component is turned on, and it is prohibited for the steam generating component to work alone or for the steam generating component to work before the hot air component is turned on.

[0181] By defining the above control method, the high-temperature steam delivered by the steam generating component to the cooking cavity can be blown away from the area where the hot air component is located by the high-temperature air flow generated by the hot air component in the first time, avoiding the diffusion of the high-temperature steam to the orientation where the hot air component is located, thereby reducing the possibility of the steam contacting the hot air component, and solving the technical problems such as the fan being easily eroded by the steam and the fan being prone to short-circuit and other failures in the related technology. Furthermore, it realizes the technical effects of optimizing the control method of the air fryer, improving the safety of the air fryer, reducing the failure rate of the air fryer, and prolonging the service life of the air fryer.

[0182] In the above technical solution, the cooking instruction includes a first instruction. According to the cooking instruction, the step of controlling the hot air component to work includes: controlling the hot air component to start working when only the first instruction is obtained.

[0183] In this technical solution, the cooking instruction includes a first instruction. When the user needs to cook food with high-temperature air flow, the first instruction can be obtained.

[0184] On this basis, when the first instruction is obtained alone, the air fryer controls the hot air component to turn on according to the first instruction, so as to quickly heat the surface of the food through the high-temperature air flow produced by the hot air component, thereby obtaining food with a taste similar to frying. For example, when processing French fries with an air fryer, the hot air component is controlled to work alone.

[0185] In any of the above technical solutions, the cooking instruction includes a first instruction and a second instruction. According to the cooking instruction, the steps of controlling the hot air component and the steam generating component to work include:

[0186] When the first instruction and the second instruction are obtained, controlling the hot air component to start working, and controlling the steam generating component to start working after controlling the hot air component to start working.

[0187] In this technical solution, the cooking instruction includes a first instruction and a second instruction. When the user needs to cook food with high-temperature air flow, the first instruction can be obtained. When the user needs to cook food with the assistance of high-temperature steam, the second instruction can be obtained.

[0188] On this basis, when the first instruction and the second instruction are obtained simultaneously, first control the hot air component to turn on, and then control the steam generation component to turn on after the hot air component starts to work, ensuring that high-temperature airflow is generated in the cooking cavity first, and then high-temperature steam is generated. For example, when an air fryer is needed to process chicken breasts, the high-temperature steam can be used to hydrate the chicken breasts to avoid the problem of dry and tough texture of the chicken breasts.

[0189] By defining the above control method, it is possible to ensure that the flow directions of the high-temperature steam and the high-temperature airflow are the same, and avoid the diffusion of the high-temperature steam in the direction of the hot air component. Thereby reducing the possibility of steam contacting the hot air component, and solving the technical problems such as the fan being easily eroded by steam and the fan being prone to short-circuit and other failures in the related technology. Furthermore, the technical effects of optimizing the control method of the air fryer, improving the safety of the air fryer, reducing the failure rate of the air fryer, and extending the service life of the air fryer are achieved.

[0190] In any of the above technical solutions, after controlling the steam generation component to start working, the control method further includes: controlling the steam generation component to stop working, and controlling the hot air component to stop working after controlling the steam generation component to stop working.

[0191] In this technical solution, after controlling the hot air component and the steam generation component to start working in sequence according to the first instruction and the second instruction. If it is determined that the cooking process is completed, first control the steam generation component to stop working, and control the hot air component to stop working after the steam generation component stops working to complete the entire cooking process.

[0192] By defining the above control method, it can be ensured that all the high-temperature steam generated by the steam generation component can be blown away from the hot air mechanism by the high-temperature airflow output by the hot air component, and avoid the diffusion of some suspended high-temperature steam to the area where the hot air component is located after the hot air component stops working, thereby further reducing the possibility of the hot air component being damaged due to steam failure in cooperation with the control method in the initial stage of the foregoing cooking process.

[0193] Furthermore, the technical effects of optimizing the control method of the air fryer, improving the safety of the air fryer, reducing the failure rate of the air fryer, and extending the service life of the air fryer are achieved.

[0194] As Figure 35 shown, an embodiment of the present invention proposes a control method for an air fryer, which is applied to an air fryer. The control method includes:

[0195] Step 402, obtain a cooking instruction;

[0196] Step 404, according to the cooking instruction, control the hot air component to work, and in response to the start of the work of the hot air component, control the steam generation component to work simultaneously with the hot air component, or control the steam generation component to work after the hot air component works.

[0197] By defining the above control method, the high-temperature steam delivered by the steam generating assembly to the cooking cavity can be blown away from the area where the hot air assembly is located by the high-temperature air flow generated by the hot air assembly in the first time, avoiding the diffusion of the high-temperature steam towards the direction where the hot air assembly is located, thereby reducing the possibility of the steam contacting the hot air assembly, and solving the technical problems existing in the related art, such as the fan is easily eroded by the steam and the fan is prone to faults such as short circuit. Furthermore, the technical effects of optimizing the control method of the air fryer, improving the safety of the air fryer, reducing the failure rate of the air fryer, and prolonging the service life of the air fryer are achieved. As Figure 36 shown in FIG. [FIG. number not provided in the original, assuming it's a reference to a figure], an embodiment of the present invention provides a control method for an air fryer. The air fryer includes a main body, a hot air assembly, and a steam generating assembly. The main body includes a cooking cavity. The hot air assembly is used to blow high-temperature air flow into the cooking cavity, and the steam generating assembly is used to deliver steam to the cooking cavity. The control method includes:

[0198] Step 502, based on the cooking instruction, control the hot air assembly to start;

[0199] Step 504, obtain the real-time temperature of the cooking cavity;

[0200] Step 506, in response to the real-time temperature reaching the first temperature value, the steam generating assembly operates.

[0201] This application defines a control method for an air fryer, where the air fryer includes a main body, a steam generating assembly, and a hot air assembly. The main body is the main frame structure of the air fryer, and a cooking cavity is formed inside the main body. Food is processed into finished food in the cooking cavity. The hot air assembly is installed on the main body, and the hot air assembly is disposed opposite to the cooking cavity. After controlling the hot air assembly to start, the hot air assembly can deliver high-temperature air flow into the cooking cavity to quickly heat the surface of the food through the high-temperature air flow. The steam generating assembly is disposed on the main body. After controlling the steam generating assembly to start, the steam generating assembly can deliver high-temperature steam into the cooking cavity. The high-temperature steam can heat the food on the one hand and hydrate the food on the other hand.

[0202] On this basis, after controlling the hot air assembly to blow high-temperature air flow into the cooking cavity according to the cooking instruction, the temperature in the cooking cavity gradually rises. During this process, the real-time temperature in the cooking cavity is monitored, and the working state of the steam generating assembly is controlled according to the real-time temperature, so that the steam generating assembly can intervene automatically according to the actual temperature in the cooking cavity, ensuring that the high-temperature steam generated by the steam generating assembly can act on the food at a reasonable time point to hydrate the food in time.

[0203] By defining the above control method, the steam generating assembly can be automatically turned on according to the real-time temperature of the cooking cavity. On the one hand, it can avoid the premature intervention of the steam generating assembly in the cooking process, preventing the food surface from collapsing due to contact with high-temperature steam before being baked and shaped by high-temperature air flow, so as to ensure the taste of the food. On the other hand, it can avoid the late intervention of the steam generating assembly in the cooking process, preventing the food surface from cracking due to long-term baking by high-temperature air flow and ensuring the appearance of the food. Thus, the technical problem in the related art that high-temperature steam cannot accurately intervene in the cooking process and the food quality is poor is solved.

[0204] Furthermore, the technical effect of optimizing the control method of the air fryer, improving the intelligence level of the air fryer, and improving the quality of the cooked food is achieved.

[0205] In the above embodiment, the step of controlling the steam generating assembly to work according to the real-time temperature includes: controlling the steam generating assembly to turn on based on the real-time temperature being greater than or equal to the first preset temperature.

[0206] In this embodiment, after obtaining the real-time temperature of the cooking cavity, the real-time temperature is compared with the first preset temperature. When the real-time temperature is less than the first preset temperature, it indicates that the food has not been baked thoroughly, and the hot air assembly continues to work while keeping the steam generating assembly in the off state. When the real-time temperature is greater than or equal to the first preset temperature, it indicates that the food has been initially baked and needs to be replenished with water. Then, the steam generating assembly is controlled to turn on to deliver high-temperature steam into the cooking cavity.

[0207] In any of the above embodiments, the value range of the first preset temperature is: greater than or equal to 80 °C and less than or equal to 100 °C.

[0208] In this embodiment, the first preset temperature needs to be greater than or equal to 80 °C and less than or equal to 100 °C.

[0209] Among them, the user can set the first preset temperature within the above range through a mobile terminal or an operation control panel to ensure that the cooking process meets the user's needs.

[0210] An image acquisition device can also be set on the air fryer. After the air fryer starts working, the image acquisition device acquires the food image in the cooking cavity, and then determines the corresponding first preset temperature according to the food image so that the first preset temperature matches the cooking requirements of the current food.

[0211] In any of the above embodiments, the hot air assembly includes a fan blade and a heating element, and the heating element is used to heat the fan blade. The steam generating assembly includes a heating element. After the step of controlling the steam generating assembly to work according to the temperature value, the control method further includes:

[0212] Obtaining the second temperature value of the heating element;

[0213] Based on the second temperature value being greater than or equal to the second preset temperature, control the heating element to stop working.

[0214] In this embodiment, the hot air assembly further includes a fan blade and a heating element. The heating element is used to heat the fan blade, and the high-temperature fan blade can generate a directional flow of high-temperature air during rotation. The steam generation assembly further includes a steam generation chamber and a heating element. The heating element is used to heat the steam generation chamber, and the liquid is heated into high-temperature steam in the high-temperature steam generation chamber.

[0215] On this basis, after controlling the steam generation assembly to start working, the temperature of the heating element rises. During this process, monitor the second temperature value of the heating element. If the second temperature value is less than the second preset temperature, it means that the high-temperature steam input into the cooking cavity will not excessively raise the temperature in the cooking cavity. If the second temperature value is greater than or equal to the second preset temperature, it means that the cooking may overheat under the combined action of the high-temperature air flow and the high-temperature steam, and the quality of the food may be adversely affected. Then control the heating element on the hot air assembly to stop heating the fan blade and keep the fan blade rotating, so as to reduce the heat brought into the cooking cavity by the air flow and complete precise temperature adjustment.

[0216] It can be seen that by defining the above control method, the working states of the steam generation assembly and the hot air assembly can be coordinated to avoid overheating and denaturation of food on the basis of replenishing water to the food through high-temperature steam. For example, during the process of cooking steak, if high-temperature air flow is continuously input, the steak will be overcooked and the quality of the steak will be affected. Furthermore, the technical effects of optimizing the control method of the air fryer, improving the intelligence level of the air fryer, and improving the quality of the cooked food are achieved.

[0217] In any of the above embodiments, the value range of the second preset temperature is: greater than or equal to 40°C and less than or equal to 250°C.

[0218] In this embodiment, the second preset temperature needs to be greater than or equal to 40°C and less than or equal to 250°C.

[0219] Among them, the user can set the second preset temperature within the above range through a mobile terminal or an operation control panel to ensure that the cooking process meets the user's needs.

[0220] An image acquisition device can also be set on the air fryer. After the air fryer starts working, the image acquisition device acquires the food image in the cooking cavity, and then determines the corresponding second preset temperature according to the food image so that the second preset temperature matches the cooking requirements of the current food.

[0221] Such as Figure 33As shown in the figure, an embodiment of the present invention provides a control device 200 for an air fryer. The air fryer includes a main body, a hot air component, and a steam generating component. The main body includes a cooking cavity. The hot air component is configured to blow high-temperature air flow into the cooking cavity, and the steam generating component is configured to deliver steam into the cooking cavity. The control device 200 of the air fryer includes:

[0222] An acquisition module 202, configured to acquire a cooking instruction;

[0223] A control module 204, configured to control the hot air component to operate according to the cooking instruction, or control the hot air component and the steam generating component to operate.

[0224] This application defines a control device 200 for an air fryer, where the air fryer includes a main body, a steam generating component, and a hot air component. The main body is the main frame structure of the air fryer, and a cooking cavity is formed inside the main body. Food is processed into finished food in the cooking cavity. The hot air component is installed on the main body and is disposed opposite to the cooking cavity. After the hot air component is controlled to be turned on, the hot air component can deliver high-temperature air flow into the cooking cavity to quickly heat the surface of the food through the high-temperature air flow. The steam generating component is disposed on the main body. After the steam generating component is controlled to be turned on, the steam generating component can deliver high-temperature steam into the cooking cavity. The high-temperature steam can, on the one hand, heat the food and, on the other hand, hydrate the food.

[0225] On this basis, the air fryer can generate corresponding cooking instructions according to the user's needs or instructions. After the acquisition module 202 acquires the cooking instruction, the control module 204 controls the hot air component to operate alone according to the cooking instruction, or controls the hot air component to start working first according to the cooking instruction, and controls the steam generating component to start working after the hot air component is turned on. That is, the air fryer can only control the hot air component to operate alone, or control the steam generating component to operate after the hot air component is turned on, and it is prohibited for the steam generating component to operate alone or for the steam generating component to operate before the hot air component is turned on.

[0226] By defining the above control device, the high-temperature steam delivered by the steam generating component into the cooking cavity can be blown away from the area where the hot air component is located by the high-temperature air flow generated by the hot air component in the first time, avoiding the diffusion of the high-temperature steam to the orientation where the hot air component is located, thereby reducing the possibility of the steam contacting the hot air component, and solving the technical problems such as the fan being easily eroded by the steam and the fan being prone to short circuit and other failures in the related art. Furthermore, the technical effects of optimizing the control device 200 of the air fryer, improving the safety of the air fryer, reducing the failure rate of the air fryer, and prolonging the service life of the air fryer are achieved.

[0227] Such as Figure 34As shown in the figure, an embodiment of the present invention provides a control device 300 for an air fryer. The control device 300 for the air fryer includes: a memory 302, in which programs or instructions are stored; and a processor 304, which executes the programs or instructions stored in the memory 302 to implement the steps of the control method for the air fryer in any of the above technical solutions.

[0228] In this technical solution, a control device 300 for an air fryer is proposed. The control device 300 for the air fryer includes a memory 302 and a processor 304. By executing the programs or instructions stored in the memory 302, the processor 304 can implement the control method for the air fryer in any of the above technical solutions. Therefore, the control device 300 for the air fryer has the advantages of the control method for the air fryer in any of the above technical solutions and can achieve the technical effects that the control method for the air fryer in any of the above technical solutions can achieve. To avoid repetition, it will not be elaborated here.

[0229] An embodiment of the present invention provides a readable storage medium, on which programs or instructions are stored. When the programs or instructions are executed by a processor, the steps of the control method in any of the above technical solutions are implemented.

[0230] In this technical solution, a readable storage medium is proposed. The readable storage medium stores programs or instructions, and when the programs or instructions are executed by a processor, the steps of the control method for the air fryer in any of the above technical solutions can be implemented. Therefore, the readable storage medium has the advantages of the control method for the air fryer in any of the above technical solutions and can achieve the technical effects that the control method for the air fryer in any of the above technical solutions can achieve. To avoid repetition, it will not be elaborated here.

[0231] An embodiment of the present invention provides an air fryer, which includes: the control device for the air fryer in any of the above technical solutions, and / or the readable storage medium in the above technical solution.

[0232] In this technical solution, an air fryer including the control device in any of the above technical solutions and / or the readable storage medium in the above technical solution is proposed. Therefore, the air fryer has the advantages of the control device in any of the above technical solutions and can achieve the technical effects that the control device in any of the above technical solutions can achieve, and / or the air fryer has the advantages of the readable storage medium in the above technical solution and can achieve the technical effects that the readable storage medium in the above technical solution can achieve. To avoid repetition, it will not be elaborated here.

[0233] It should be clear that in the claims, the specification and the drawings of the present invention, the term "a plurality of" means two or more, unless otherwise clearly defined. The orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for more conveniently describing the present invention and making the description process simpler, rather than indicating or implying that the device or element referred to must have the specific orientation described, be constructed and operated in a specific orientation. Therefore, these descriptions should not be construed as limitations on the present invention; terms such as "connection", "installation", "fixation", etc. should all be understood in a broad sense. For example, "connection" can be a fixed connection between multiple objects, a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances of the above data.

[0234] In the claims, the specification and the drawings of the present invention, the descriptions of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In the claims, the specification and the drawings of the present invention, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0235] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An air fryer, characterized in that, Comprising: A main body including a cooking cavity; An evaporation container including a water inlet, a steam generation cavity, and a steam outlet, the steam outlet being in communication with the cooking cavity; A heating element for heating the evaporation container; A switch assembly connected to the water inlet, the switch assembly including an open state and a closed state, in the open state the switch assembly opens the water inlet, and in the closed state the switch assembly closes the water inlet; A trigger assembly, the heating element is also used to heat the trigger assembly, the trigger assembly is capable of performing a trigger action according to the temperature of the evaporation container and / or the temperature of the heating element, and the trigger action is used to switch the switch assembly to the open state.

2. The air fryer according to claim 1, characterized in that, The switch assembly includes: A valve body connected to the evaporation container, including a flow channel in communication with the water inlet; A valve core disposed in the valve body, the valve core including a first position and a second position, when the valve core is in the first position, the valve core blocks the flow channel, and when the valve core is in the second position, the flow channel is open; Wherein, the trigger action is used to drive the valve core to move to the second position.

3. The air fryer according to claim 2, characterized in that, The valve body includes: A valve seat connected to the evaporation container; A valve cover connected to the valve seat, the valve cover including an inlet, the inlet being in communication with the water inlet; A valve plate disposed between the valve seat and the valve cover and connected to the valve core, the valve cover and the valve plate enclosing the flow channel.

4. The air fryer according to claim 3, characterized in that, The valve body further includes: An elastic part connected to the valve plate and the valve core, for driving the valve core to reset to the first position.

5. The air fryer according to claim 3, characterized in that, The valve body further includes: An elastic element having two ends respectively abutted against the valve cover and the valve core, for driving the valve core to reset to the first position.

6. The air fryer according to claim 3, characterized in that, The valve body further includes: A sealing groove disposed in one of the valve cover and the valve plate and surrounding the flow channel; A sealing rib disposed in the other of the valve cover and the valve plate and located in the sealing groove.

7. The air fryer according to claim 2, characterized in that, The trigger assembly includes: A driving member connected to the evaporation container and / or the heating element, at least part of the driving member is formed by shape memory metal, and the driving member is capable of pushing the valve core.

8. The air fryer according to claim 7, characterized in that, The trigger assembly includes a pushing member connected to the driving member, and the deformed driving member pushes the valve core through the pushing member.

9. The air fryer according to claim 7, characterized in that, The driving member includes: An inner ring connected to the evaporation container and / or the heating element; A shape memory metal ring connected to the inner ring and surrounding the inner ring, and the heated shape memory metal ring bends towards the direction where the valve core is located.

10. The air fryer according to any one of claims 1 to 9, characterized in that, Further comprising: A heat conducting member connected to the evaporation container, the heating element, and the trigger assembly.

11. The air fryer according to any one of claims 1 to 9, characterized in that, The evaporation container is tubular, and the air fryer further includes: A first conduit located at the switch assembly and communicating with the water inlet; A second conduit connecting the steam outlet.

12. The air fryer according to claim 11, characterized in that, The heating element is an electric heating tube, and the electric heating tube is arranged side by side with the evaporation container.

13. The air fryer according to claim 12, characterized in that, The cross-sectional area of at least a partial region on the first catheter ranges from: greater than or equal to 0.7 mm 2 , and less than or equal to 12.6 mm 2 .

14. The air fryer according to claim 12, characterized in that, The evaporation container is a U-shaped tube, the heating element is U-shaped corresponding to the evaporation container, and the evaporation container and the heating element are arranged side by side.

15. The air fryer according to claim 12, characterized in that, The evaporation container is an L-shaped tube, the heating element is in an L-shape corresponding to the evaporation container, and the evaporation container and the heating element are arranged side by side.

16. The air fryer according to claim 12, characterized in that, The evaporation container and the heating element are wound around the periphery of the trigger assembly.

17. The air fryer according to claim 11, characterized in that, It further includes: A flow disturbing member, which is arranged in the evaporation container and is used for disturbing the liquid in the evaporation container.

18. The air fryer according to claim 3, characterized in that, It further includes: A liquid storage assembly, which is connected to the switch assembly and includes a liquid storage cavity communicated with the water inlet.

19. The air fryer according to claim 18, characterized in that, The liquid storage assembly includes: A water tank, which is detachably connected to the switch assembly and includes the liquid storage cavity and a drain port; A sealing valve, which is arranged at the drain port; When the water tank is connected to the switch assembly, the sealing valve abuts against the switch assembly, and the sealing valve opens the drain port; When the sealing valve is separated from the valve cover, the sealing valve closes the drain port.

20. The air fryer according to any one of claims 1 to 9, characterized in that, It further includes: A first thermostat, which is arranged on the body and is used for detecting the real-time temperature of the cooking cavity; Wherein, in response to the real-time temperature reaching a first temperature value, the steam generating assembly operates.

21. A control method for an air fryer, applied to the air fryer according to any one of claims 1 to 20, characterized in that, The air fryer includes a body, a hot air assembly and a steam generating assembly. The body includes a cooking cavity. The hot air assembly is used for blowing high-temperature air flow into the cooking cavity, and the steam generating assembly is used for delivering steam into the cooking cavity. The control method includes: Obtaining a cooking instruction; According to the cooking instruction, controlling the hot air assembly to operate. In response to the start of operation of the hot air assembly, controlling the steam generating assembly to operate simultaneously with the hot air assembly, or controlling the steam generating assembly to operate after the hot air assembly operates.

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